JP5238057B2 - Heat medium temperature fluctuation suppression device, heat medium supply facility and solar power generation facility - Google Patents

Description

  The present invention relates to a solar thermal power generation facility, a heat medium supply facility, and a temperature fluctuation suppressing device. More specifically, a solar thermal power generation facility that generates steam by using a heat medium heated by solar heat and drives a steam turbine with the steam to generate power, a heat medium supply facility that supplies a heat medium heated by solar heat, and the heat The present invention relates to a temperature fluctuation suppressing device for suppressing a temperature fluctuation of a medium.

  In the conventional solar thermal power generation facility 101 shown in FIG. 25, sunlight is collected by a concentrating heat collecting device (hereinafter simply referred to as a heat collecting device) 102 and absorbed by a heat medium as heat energy. To the heat exchanger 103, and steam is generated by the heat of the heat medium. The saturated steam generated in the heat exchanger 103 is superheated by a superheater (super heater) 104. The steam turbine 105 is driven by the superheated steam to generate power. The code | symbol 106 in a figure is a generator, and the code | symbol 107 is a condenser.

  The sunlight condensing method is roughly classified into a concentrated type and a distributed type, and the distributed type is mainly adopted. As the distributed heat collecting apparatus 102, a parabolic trough (parabolic cross section) type reflector 102a is frequently used. The reflecting plate 102a is formed in a bowl shape having a cross section indicated by a parabola on the XY plane, and reflects incident sunlight and collects it at the focal point. On the other hand, a heat medium is caused to flow through the heat absorption pipe 108 extending along the Z-axis through the focal position to collect and collect solar heat. This heat medium is circulated through the heat absorption pipe 108 and the heat medium supply pipe 109 connected thereto to the heat exchanger and the heat collecting device. As the heat medium, special hydraulic oil is often used. For example, the heat medium absorbs solar heat to be in a high temperature state (about 400 ° C.), releases heat in the heat exchanger 103 to generate steam, and becomes a low temperature state (about 300 ° C.). Go to device 102.

  However, as can be understood from the change in the solar energy density of the day shown in FIG. 26, this solar thermal power generation facility can be operated only in the time zone from sunrise to sunset, and the operation is stopped at night and the next morning. Will be restarted. FIG. 26 shows the daily solar energy density change at a point in northern Africa. Typically, the average energy density for July and the average energy density for December are shown, but the curve showing the change in the average energy density for the other months will fall approximately between the two curves.

  In this way, the intensity of the solar energy that reaches the heat collecting apparatus 102 changes from the zero level to the maximum level in one day. Therefore, the capacity of the power generation equipment 101 is usually planned so that power generation at an average intensity level can be performed. Then, excess energy exceeding the average level of solar energy is stored as thermal energy in the large and expensive heat storage facility 110, and when sunset approaches, this heat is released to generate steam so that power generation can be continued. Often planned. However, in reality, the heat storage capacity is limited to about 4 to 6 hours in terms of power generation continuation time due to limitations on equipment costs and operation costs, so power generation cannot be continued throughout the day.

  In order to solve this problem, a solar thermal combined power generation system in which gas turbine power generation is combined with steam turbine power generation using solar heat has been proposed (for example, Patent Document 1 and Patent Document 2). These combined power generation facilities are designed to perform power generation using a gas turbine and power generation using a steam turbine using steam from an exhaust heat recovery boiler, even at night or on cloudy days when solar heat cannot be used. is there. By doing so, we can expect to continue power generation day and night. It can also be expected to reduce fuel consumption and reduce carbon dioxide emissions by maximizing solar thermal power generation.

  However, in the heat collecting apparatus of this combined power generation facility, saturated steam is directly generated from water and supplied to the steam turbine without using a special heat medium or heat exchanger. In the power generation facility of Patent Document 1, saturated steam is mixed with steam discharged from a high-pressure turbine in order to superheat it, and then sent to the steam turbine. On the other hand, in the power generation facility of Patent Document 2, the saturated steam is mixed with the steam discharged from the high-pressure turbine and then heated by the reheater of the exhaust heat recovery boiler before being sent to the steam turbine.

  However, there is an unavoidable problem regardless of whether it is a solar thermal power generation facility or a solar combined power generation facility. It is the time-dependent variation of the sunshine condition on the surface of the daytime. Heat transfer from the sun to steam and other heat media in the heat collector is mostly due to radiation. Therefore, when the sunshine condition on the surface of the earth fluctuates, the temperature of the steam or other heat medium that absorbs solar heat also fluctuates so as to accurately respond to the fluctuation. As a result, since the conditions (temperature, pressure, dryness, etc.) of the steam supplied to the steam turbine vary, the power generation amount also varies. In addition, if the steam condition fluctuates drastically, the exhaust heat recovery boiler or the steam turbine may be damaged.

  For example, in the facilities disclosed in Patent Document 1 and Patent Document 2, the conditions (temperature, pressure, dryness) of the steam generated in the heat absorption pipe of the heat collecting device fluctuate, and the heat collecting device moves to the steam turbine. Steam heat loss occurs while being sent. As a result, in the facility of Patent Document 1, the steam condition after mixing with the steam discharged from the high-pressure turbine varies. Moreover, in the facility of Patent Document 2, the steam condition on the inlet side of the reheater fluctuates and affects the exhaust heat recovery boiler. That is, if the sunshine conditions vary greatly or frequently, the conditions of the generated steam in the heat collecting device also vary in the same way, making it difficult to continue safe operation of the entire solar combined power generation facility.

  Variations in sunshine conditions are caused by clouds and sandstorms. Further, when the reflector is bent by the wind, sufficient sunlight cannot be concentrated on the heat absorption pipe. This also causes temperature fluctuations of the heat medium and the like. Since the fluctuation may occur in a short cycle, the heat storage facility cannot be used, and the current situation is that the temperature fluctuation of the heat medium or the like cannot be suppressed.

European Patent Application Publication No. 0750730 European Patent Application Publication No. 0526816

  The present invention has been made to solve such a problem. For example, even if a heat medium supplied in a solar thermal power generation facility or the like causes temperature fluctuations over time, steam fluctuations can be obtained by leveling the fluctuations. It is an object of the present invention to provide a heat medium temperature fluctuation suppressing device capable of sufficiently suppressing fluctuation at the time of supplying heat for generation. It is another object of the present invention to provide a heat medium supply facility that can supply a heat medium to a heat exchanger while suppressing temperature fluctuations. It is another object of the present invention to provide a solar power generation facility that can supply steam generated by solar heat through a heat medium to a steam turbine in a stable overheated state.

For the above purpose, the temperature variation suppressing device of the heat medium of the present invention is
A heat medium temperature fluctuation suppressing device disposed in a heat medium supply passage for supplying a liquid heat medium to a heat exchanger,
A heating medium mixing device for mixing the heating medium, the heating medium mixing device having a plurality of heating medium passages;
An inlet member provided in the mixing container for allowing the heat medium to flow into the mixing container from the heat medium supply passage;
An outlet member provided separately from the inlet member in the mixing container, for the heat medium to flow out from the mixing container to the heat medium supply passage;
A perforated plate arranged in the mixing container so as to partition into the space on the inlet member side and the space on the outlet member side, and having a plurality of through holes forming the plurality of heat medium passages;
The heat medium continuously flowing in from the inlet member is configured to be able to merge after flowing through the plurality of heat medium passages in the mixing container with a time difference and to flow out of the outlet member. Is.

  The liquid heat medium that is supplied from time to time through the heat medium supply passage flows into the mixing container, and is mixed with time when it comes out of each of the plurality of heat medium paths and joins. Therefore, even when the temperature of the heat medium fluctuates, the time difference mixing reduces the width of the temperature fluctuation and decreases the temperature fluctuation speed. As a result, for example, the condition of the steam generated by the heat of the heat medium becomes uniform over time. The time difference mixing means that the heat medium flowing into the mixing container continuously with a time delay is mixed with the heat medium that has already flowed and stayed.

  The connection to the inlet member is not limited to the upstream side of the heat medium supply passage, and the connection to the outlet member is not limited to the downstream side of the heat medium supply passage. For example, as shown in FIG. 18, in the heat medium supply passage, a return passage composed of a downstream inlet pipe and an outlet pipe is provided, and when a mixing container is installed in the return passage, the downstream side of the heat medium supply passage is connected to the mixing container. It is also possible to adopt a configuration in which means for connecting the inlet member, connecting the upstream side to the outlet member, and providing a means for pressure-feeding the heat medium to the mixing container in the return passage can be employed.

  The heat medium supplied from the inlet member into the mixing container passes through a large number of through holes having different distances from the inlet member and flows into the space on the outlet member side. Therefore, even if the heat medium flows in at the same time, the time to reach the space on the outlet member side is divided into different portions. And since these parts are united again in the space by the side of an exit member, time difference mixing of a heat carrier is made.

  A plurality of the perforated plates may be arranged at intervals.

  In the perforated plate, the through hole is preferably formed in a range excluding a portion of the perforated plate that intersects the center axis of the heat medium flow path of the inlet member toward the inside of the mixing container and the vicinity thereof. This is because the residence time of the heat medium flowing into the mixing container can be extended.

  The temperature variation suppressing device for the heat medium is configured such that an inflow angle of the heat medium into the mixing container can be changed to one of the inlet member and the vicinity of the inlet member in the mixing container. It is preferable to install a heat medium inflow device. This is because the inflow direction of the heat medium can be adjusted so that the time difference mixing of the heat medium is effectively performed inside the mixing container.

  In the temperature fluctuation suppressing device provided with the heat medium inflow device, the heat medium inflow device is composed of a variable louver having at least one louver swingably mounted so that the inclination angle can be changed from the outside. be able to.

  The temperature fluctuation suppressing device may be configured such that a plurality of inlet members are provided, and an inlet member through which the heat medium flows into the mixing container can be selected and switched among the inlet members. With such a configuration, it is possible to select an inlet member that can effectively mix the heat medium.

  In this temperature fluctuation suppressing device, a plurality of outlet members can be formed, and an outlet member that allows the heat medium to flow out of the mixing container can be selected and switched in synchronization with the switching of the inlet member.

  In the temperature fluctuation suppressing device, a plurality of inlet members can be formed, and a flow rate adjusting device can be installed in each inlet member so that the flow rate of the heat medium flowing through each inlet member can be changed. According to this configuration, for example, the time difference mixing of the heat medium in the mixing container can be promoted by periodically switching the inlet through which the heat medium flows.

  A stirring device for stirring the heat medium can be installed in the heat medium mixing device. As the stirring device, various rotating bodies such as a screw propeller, a forced jet device, and the like can be adopted.

An inlet temperature measuring device for measuring the inlet temperature of the heat medium is installed in one of the heat medium supply passage connected to the inlet member and the inlet member,
An outlet temperature measuring device for measuring the outlet temperature of the heat medium can be installed in one of the heat medium supply passage connected to the outlet member and the outlet member.

  In such a temperature fluctuation suppressing device, the temperature fluctuation of the heat medium flowing into the mixing container and the temperature fluctuation of the heat medium flowing out of the mixing container based on the measured values of the inlet temperature measuring device and the outlet temperature measuring device. And a control device that controls to change the amount of flow of the heat medium into the mixing container based on the comparison result.

  Further, based on the measured values of the inlet temperature measuring device and the outlet temperature measuring device, the temperature variation of the heat medium flowing into the heat medium passage constituting member is compared with the temperature variation of the heat medium flowing out from the heat medium passage constituting member. And based on this comparison result, the control apparatus which controls to change the inflow direction of the heat medium into the heat medium passage constituting member can be arranged.

The heat medium supply facility of the present invention comprises:
Heating equipment for heating the liquid heat medium by sunlight;
A heat exchanger that heats the feed water with the heat medium supplied from the heating facility;
A heat medium supply passage for supplying a heat medium from the heating facility to the heat exchanger;
A temperature fluctuation suppressing device for suppressing temperature fluctuation of the heat medium disposed in the heat medium supply passage;
This temperature fluctuation suppressing device is composed of any one of the temperature fluctuation suppressing devices described above.

In such a heat medium supply facility, in the heat medium temperature fluctuation suppressing device,
An outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
An upstream inlet passage connecting the inlet member of the heat medium mixing device and a portion upstream of the connection point of the outlet passage in the heat medium supply passage;
A heat medium pumping device disposed in the upstream inlet passage and pumping the heat medium toward the heat medium mixing device may be provided.

Or an outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
A downstream inlet passage connecting the inlet member of the heat medium mixing device and a portion downstream of the connection point of the outlet passage in the heat medium supply passage;
A heat medium pumping device installed in the downstream inlet passage and pumping the heat medium toward the heat medium mixing device can be provided.

Or an outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
An upstream inlet passage connecting the inlet member of the heat medium mixing device and a portion upstream of the connection point of the outlet passage in the heat medium supply passage;
A downstream inlet passage connecting the inlet member of the heat medium mixing device and a portion downstream of the connection point of the outlet passage in the heat medium supply passage;
It is possible to provide a heat medium pumping device that is disposed in each of the upstream and downstream inlet passages and pumps the heat medium toward the heat medium mixing device.

Or an outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
An upstream inlet passage connecting the inlet member of the heat medium mixing device and a portion upstream of the connection point of the outlet passage in the heat medium supply passage;
A return passage that connects a portion of the heat medium supply passage downstream from the connection point of the outlet passage and a portion of the heat medium supply passage upstream of the connection point of the upstream inlet passage;
A heat medium pumping device installed in the upstream inlet passage for pumping the heat medium toward the heat medium mixer;
And a heat medium pumping device installed in the return passage for pumping the heat medium toward the upstream heat medium supply passage.

Alternatively, two types of inlet members are formed in the heat medium mixing device of the temperature fluctuation suppressing device, a downstream heat medium supply passage is connected to the outlet member of the heat medium mixing device, and one inlet member of the heat medium mixing device Connect the upstream heat medium supply passage to
A return passage connecting the other inlet member of the heat medium mixing device and the heat medium supply passage on the downstream side;
A heat medium pumping device installed in the return passage and pumping the heat medium toward the heat medium mixing device may be provided.

Alternatively, the downstream heat medium supply passage is connected to the outlet member of the heat medium mixing device of the temperature fluctuation suppressing device, and the upstream heat medium supply passage is connected to the inlet member of the heat medium mixing device,
A return passage connecting a heat medium supply passage upstream from the heat medium mixing device and a heat medium supply passage downstream from the heat medium mixing device;
A heat medium pumping device installed in the return passage and pumping the heat medium from the downstream side to the upstream side of the heat medium supply passage may be provided.

Or, in the heating facility, provided with a plurality of heat collection zones in which a heat collection device for heating the heat medium by the concentrated sunlight is installed,
A plurality of heat collection zones and a plurality of heat medium passages are provided so that the liquid heat medium from one heat collection zone is supplied to one heat medium passage in the mixing container in the temperature fluctuation suppressing device. The heat medium supply passages can be connected.

The solar thermal power generation facility of the present invention is
A steam turbine;
In order to generate steam to be supplied to the steam turbine, a heating medium supply facility for supplying a heating medium for heating water is provided.
This heat medium supply facility is any one of the heat medium supply facilities described above, and steam generated in a heat exchanger in this heat medium supply facility is supplied to the steam turbine.

  The solar thermal power generation facility further includes a gas turbine and an exhaust heat recovery boiler using exhaust heat of the gas turbine, and the solar heat configured to supply steam generated in the exhaust heat recovery boiler to the steam turbine. It can be a combined power generation facility.

  According to the present invention, it is possible to suppress and mitigate the temperature fluctuation by mixing the liquid heat medium supplied to the heat exchanger while the temperature fluctuates as in a solar thermal power generation facility with a simple structure by time difference. it can. That is, not only can the temperature fluctuation be reduced, but it is possible to eliminate only short-period and medium-period temperature fluctuations and leave only long-period fluctuations as if they were a low-pass filter.

FIG. 1 is a piping diagram showing an outline of a combined solar thermal power generation facility according to an embodiment of the present invention. FIG. 2 is a piping diagram showing an outline of a combined solar thermal power generation facility according to another embodiment of the present invention. FIG. 3 is a piping diagram showing an outline of a combined solar thermal power generation facility that is still another embodiment of the present invention. FIG. 4 is a piping diagram showing an outline of a combined solar heat power generation facility according to still another embodiment of the present invention. FIG. 5 (a) shows a reference example of a heat medium mixing device as a heat medium temperature fluctuation suppressing device that can be installed in the solar combined power generation facility of FIG. 1, and is a longitudinal section cut by a surface along the central axis of the device. FIG. 5B is a cross-sectional view taken along the line VV in FIG. FIG. 6A shows another reference example of a heat medium mixing device as a heat medium temperature fluctuation suppressing device that can be installed in the solar combined power generation facility of FIG. 1, cut along a plane along the central axis of the device. FIG. 6B is a vertical cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a longitudinal sectional view showing still another reference example of the heat medium mixing device that can be installed in the solar thermal combined power generation facility of FIG. FIG. 8 is a longitudinal sectional view showing still another reference example of the heat medium mixing device that can be installed in the solar combined power generation facility of FIG. FIG. 9A is a front view showing still another reference example of a heat medium mixing apparatus that can be installed in the solar combined power generation facility of FIG. 1, and FIG. 9B is a IX-IX line of FIG. 9A. It is sectional drawing. FIG. 10 is a partially cutaway perspective view showing an example of a heat medium mixing device that can be installed in the solar combined power generation facility of FIG. 1. FIG. 11 is a longitudinal section taken along a plane along the central axis of the heat medium mixing apparatus of FIG. FIG. 12A is a longitudinal section taken along a plane along the central axis of the apparatus, showing still another example of a heat medium mixing apparatus that can be installed in the solar combined power generation facility of FIG. ) Is a cross-sectional view taken along line XII-XII in FIG. FIG. 13 is a longitudinal sectional view showing still another example of a heat medium mixing device that can be installed in the solar thermal combined power generation facility of FIG. FIG. 14 is a longitudinal sectional view showing still another example of a heat medium mixing device that can be installed in the solar thermal combined power generation facility of FIG. FIG. 15 is a partially cutaway perspective view showing an example of a heat medium inflow device used in the heat medium mixing device of FIG. 14. FIG. 16 is a cross-sectional view showing still another example of a heat medium mixing device that can be installed in the combined solar heat power generation facility of FIG. FIG. 17 is a piping diagram showing an embodiment of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar thermal power generation facility of FIG. 1. FIG. 18 is a piping diagram showing another embodiment of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar thermal power generation facility of FIG. 1. FIG. 19 is a piping diagram showing still another embodiment of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar heat power generation facility of FIG. 1. FIG. 20 is a piping diagram showing still another embodiment of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar thermal power generation facility of FIG. 1. FIG. 21 is a piping diagram showing still another embodiment of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar heat power generation facility of FIG. 1. FIG. 22 is a piping diagram showing still another embodiment of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar heat power generation facility of FIG. 1. FIG. 23 is a piping diagram showing a reference example of a heat medium temperature fluctuation suppressing device that can be installed in the combined solar thermal power generation facility of FIG. 1. FIG. 24 is a piping diagram showing still another reference example of the heat medium temperature fluctuation suppressing device that can be installed in the combined solar heat power generation facility of FIG. 1. FIG. 25 is a piping diagram schematically showing an example of a conventional solar power generation facility. FIG. 26 is a graph showing an example of a temporal change in the solar energy density of one day.

  DESCRIPTION OF EMBODIMENTS Embodiments of a solar combined power generation facility, a heat medium supply facility, and a temperature fluctuation suppressing device of the present invention will be described with reference to the accompanying drawings.

  In FIG. 1, steam turbine power generation in which steam generated by using solar heat is partially used to drive a steam turbine 2 to generate power, and a gas turbine 3 is driven by burning a fuel gas such as natural gas. A solar thermal combined power generation facility 1 that combines gas turbine power generation that generates electricity by this is shown. In the power generation facility 1, a parabolic trough type reflector 4 a is used as the heat collecting device 4. The reflector 4a is formed in a bowl shape having a cross section indicated by a parabola on the XY plane, and reflects incident sunlight and collects it at the focal point.

  A heat absorption pipe 5 is extended along the Z axis through the focal position of the reflecting plate 4 a, and a liquid heat medium is caused to flow through the heat absorption pipe 5. A heat medium supply pipe 6 connected to the heat absorption pipe 5 circulates the heat medium between the heat exchanger 7 and the heat collector 4. The heat exchanger 7 functions as an evaporator. The heat medium absorbs solar heat in the heat collector 4, supplies heat to water in order to generate steam in the heat exchanger 7, and goes to the heat collector 4 again.

  In the power generation facility 1, a plurality of heat collection zones 8a, 8b, 8c, and 8d in which the heat collection device 4 is installed are formed. This is because even if the entire area of a large heat collecting device installation area (for example, a facility with a power generation amount of 30 MW is usually about 1400 m × 700 m) is not evenly flat, This is because the heat collecting device is effectively arranged by dividing the area. Or it is for dividing | segmenting so that the loop length of supply pipe | tube of a heat medium may not be too long, and the pressure loss of piping may become excessive. Furthermore, even when the heat absorption pipe 5 or the heat collecting device 4 does not operate normally, it is not necessary to stop the entire supply of the heat medium in order to inspect and repair the device.

  The heat medium supply pipes 6a, 6b, 6c, 6d extending from the plurality of heat collection zones 8a, 8b, 8c, 8d are integrated and connected to the heat exchanger 7. A heat medium mixing device 10 to be described later is installed in the heat medium supply pipe 6 after the integration. A return pipe 9 is connected from the outlet of the heat exchanger 7 to each heat collecting zone. The return pipe 9 is also referred to as a heat medium supply pipe 6. The heat medium supply pipe 6 is provided with a circulation pump 9P for circulating the heat medium. Although one pump 9P is shown in FIG. 1, when the heat medium supply pipe 6 is long, a plurality of pumps may be used as needed to share the pressure loss of the pipe. The heat collecting device 4, the heat medium supply pipe 6, the heat exchanger 7, and the heat medium mixing device 10 constitute a heat medium supply facility 11.

  On the other hand, power generation is performed by the steam turbine 2 and the gas turbine 3 as described above. A generator 12 is connected to each of the two and the three. The power generation facility 1 is provided with an exhaust heat recovery boiler 13. Combustion gas (exhaust gas) used to drive the gas turbine 3 is supplied to the exhaust heat recovery boiler 13 through the exhaust gas pipe 82, heats the feed water to generate steam, and then passes through the exhaust gas pipe 82 to form a chimney. 22 is released into the atmosphere. The steam turbine 2 is driven by steam generated in the heat exchanger 7 and the exhaust heat recovery boiler 13.

  The steam that has driven the steam turbine 2 is condensed in the condenser 14, and then pumped through the water supply pipe 16 by the water supply pump 15. That is, it is first heated by the feed water heater 17 and then degassed by the deaerator 18. Thereafter, it branches and is sent to the exhaust heat recovery boiler 13 and the heat exchanger 7 by the pumps 19a and 19b. The steam generated in the heat exchanger 7 and the exhaust heat recovery boiler 13 is joined and sent to the steam turbine 2 through the first steam supply pipe 20. The flow distribution between the water supply to the exhaust heat recovery boiler 13 and the water supply to the heat exchanger 7 is adjusted according to the actual required power generation amount and the solar heat recovery amount based on the amount of generated steam determined at the time of facility construction planning. The

  The exhaust heat recovery boiler 13 includes an economizer (preheater) 13a, an evaporator (evaporator) 13b, and a super heater (superheater) 13c. The steam generated in the heat exchanger 7 is saturated. Therefore, it is necessary to make this saturated steam into superheated steam before supplying it to the steam turbine 2. For this purpose, the second steam supply pipe 21 is connected from the steam outlet of the heat exchanger 7 to the inlet side of the superheater 13c of the exhaust heat recovery boiler 13, and the saturated steam from the heat exchanger 7 is supplied to the superheater 13c. Overheating.

  It is preferable to install a flow rate adjusting valve 80 in the second steam supply pipe 21. The flow rate adjusting valve 80 has a sudden decrease in the amount of heat collected due to shading by daytime clouds, a sudden decrease in heat collection efficiency due to deflection of the heat collection device 4 due to the wind pressure of the sandstorm, and a sudden decrease in solar heat recovery due to sunset. Therefore, the steam supply amount to the exhaust heat recovery boiler 13 is controlled so as not to change suddenly. Further, the flow rate adjusting valve 80 is controlled so that the amount of generated steam that starts increasing with sunrise does not hinder the operation of the exhaust heat recovery boiler 13. Furthermore, since the steam in the second steam supply pipe 21 disappears especially after sunset, the second steam supply pipe 21 is controlled to be closed.

  The saturated steam from the heat exchanger 7 is mixed with the steam generated in the evaporator 13b of the exhaust heat recovery boiler 13 on the inlet side of the superheater 13c through the second steam supply pipe 21 and sent to the superheater 13c. The super heater 13c is designed and manufactured to have a performance (heat transfer area) capable of heating the total amount of the saturated steam from the heat exchanger 7 and the saturated steam from the evaporator 13b to a predetermined superheat temperature. Therefore, the exhaust heat recovery boiler 13 can supply the steam turbine 2 with superheated steam having a stable property.

  In the solar combined power generation facility 1, the temperature of the heat medium supplied from the heat collection zone 8 fluctuates over time due to changes in weather conditions such as sunshine conditions. However, when the heat medium reaches the heat exchanger 7, the heat medium supply pipe 6 has the above-described heat that suppresses the temperature fluctuation of the heat medium so that the temperature is sufficiently uniform (stable). A medium mixing device 10 is installed. The heat medium mixing apparatus 10 includes a heat medium inlet member 91 connected to the upstream side of the heat medium supply pipe 6 and a heat medium connected to the downstream side of the heat medium supply pipe 6 separately from the inlet member 91. And an outlet member 93 for each. Further, as will be described later, the heat medium mixing apparatus 10 is formed with a plurality of heat medium passages.

  The heat medium mixing device 10 can be manufactured to be approximately the same size as the heat exchanger 7. That is, for example, about two heat medium mixers having a diameter of about 2 m and a length of about 10 m may be installed as an example for a heat collecting apparatus in a facility with a power generation amount of 30 MW. Of course, the number can be increased or the size can be increased according to the properties of the heat medium actually used and the actual temperature fluctuation. The heat medium that flows in while changing the temperature from time to time is mixed in the heat medium mixing apparatus 10 with a time difference. That is, the heat medium that has flowed into the heat medium mixing device 10 at the same time passes through a plurality of different heat medium passages and flows from the outlet member 93 relatively quickly to a portion where it stays in the passage of the heat medium mixing device 10 from late. Distributed. On the other hand, since a new heat medium continuously flows in from the inlet member 91, the heat medium that has flowed in the past and the heat medium that has flowed in in the past are constantly mixed. Non-uniformity, that is, temperature fluctuations are made uniform. Here, this is called “time difference mixing”. When the heat medium is mixed with time difference, the temperature fluctuation range is reduced and the fluctuation speed is reduced. By exhibiting this time difference mixing, the heat medium mixing device functions as a temperature variation suppressing device for the heat medium. Details of the configuration of the temperature fluctuation suppressing device including the heat medium mixing device 10 will be described later. It is preferable that a temperature measuring device 81 that continuously measures the temperature of the heat medium is installed in each of the heat medium supply pipes 6 on the upstream side and the downstream side of the heat medium mixing device 10. With this temperature measuring device, temperature fluctuations in the upstream and downstream heat medium supply pipes 6 can be detected. And since the signal which shows the temperature fluctuation of each upstream and downstream heat medium is input into the control apparatus 70 from the temperature measurement apparatus 81, suppression of the temperature fluctuation by the heat medium mixing apparatus 10 is contrasted by comparing these. The degree of effect can be monitored.

  In the heat medium supply facility 23 of the power generation facility 1 shown in FIG. 2, in addition to the heat medium mixing device 10 described above, the heat medium supply pipes 6a, 6b, 6c, 6d in the heat collection zones 8a, 8b, 8c, 8d, respectively. In addition, independent heat medium mixing devices 24a, 24b, 24c, and 24d are installed. Therefore, temperature fluctuations of the heat medium can be suppressed for each heat collection zone. Then, after collecting the heat medium whose temperature fluctuation is suppressed from each of the heat collection zones 8a, 8b, 8c, and 8d, the heat medium is mixed in the heat medium mixing device 10 to equalize and equalize the temperature. To do. Since the power generation device is the same as that shown in FIG.

  In the heat medium supply facility 25 of the power generation facility 1 shown in FIG. 3, the heat medium supply pipes 6 a, 6 b, 6 c, and 6 d in the heat collection zones 8 a, 8 b, 8 c, and 8 d are provided for the heat medium mixer 10 described above. It is connected directly without being integrated. According to this configuration, unlike the heat medium supply facility 11 of FIG. 1, a part of the sunlight that irradiates a large installation area is shielded by the clouds, and the intensity of solar heat in a part of a certain heat collection zone is localized. Even if there is inhomogeneity with the solar heat intensity of other parts that are not shielded by the clouds, the temperature variation of the heat medium resulting from this inhomogeneity is reduced at the outlet side of this heat collection zone. Can be relaxed. Further, the heat medium mixing devices 24a, 24b, 24c, and 24d shown in FIG. 2 may be installed in the heat medium supply pipes 6a, 6b, 6c, and 6d in the heat medium supply facility 25, respectively.

  The heat medium supply facility 26 of the power generation facility 1 shown in FIG. 4 is obtained by newly installing a heat storage device 27 with respect to the heat medium supply facility 11 of FIG. The heat storage device 27 suppresses the dissipation of heat energy by applying a high heat insulation treatment with the outside world, and has a high heat storage function using a heat storage medium such as a molten salt, thereby It consists of a special container that can store thermal energy.

  The heat storage device 27 is installed in a bypass pipe 28 connected to the return pipe 9 so as to bypass the heat medium mixing apparatus 10 and the heat exchanger 7 from the upstream side of the heat medium mixing apparatus 10 described above. The heat medium is circulated through the heat collecting device 4 and the heat storage device 27 by a circulation pump 28P installed in the bypass pipe 28. The amount of solar heat recovered by the heat medium circulated in this manner varies depending on the ascension position of the aspect and becomes zero at night. On the other hand, the power generation of solar thermal power generation facilities is generally planned to correspond to the average level of recovered solar heat. Then, the recovered solar heat exceeding the average level is stored in the heat storage device 27 in a time zone in which the recovered solar heat is near the maximum level. For this reason, when the recovered solar heat exceeds a predetermined average level, a part of the heat medium is guided to the heat storage device 27 and the heat energy is stored in the heat storage medium in the device 27. The bypass pipe 28 and the heat storage device 27 may be installed in the heat medium supply facility 23 of FIG. 2 or the heat medium supply facility 25 of FIG.

  The details of the heat medium mixing device functioning as a heat medium temperature fluctuation suppressing device will be described below with reference to FIGS. The following heat medium mixing apparatus is devised in various ways so that the heat medium is sufficiently mixed in the time difference. In other words, the heat medium mixing device is configured so that effective time difference mixing is achieved when a part of the heat medium flowing into the heat medium stays therein for a long time and is sufficiently mixed. In brief, the heat medium mixing apparatus is configured so that the heat medium flowing into the heat medium passes through the plurality of heat medium passages formed therein over different times, and the heat medium that has passed through each heat medium passage is mixed. By doing so, time difference mixing is achieved.

  In the heat medium mixing apparatus 10 according to the reference example shown in FIG. 5, a tank 31 in which compartments 30 as a plurality of heat medium passages are formed is used as a heat medium passage constituting member constituting a plurality of different heat medium passages. Adopted. In this reference example, a plurality of cylindrical partition walls 32 whose upper ends are opened on a floor surface in a cylindrical tank 31 are arranged concentrically at intervals, and the tank peripheral wall, the cylindrical partition wall 32, The space between each other and the space between the cylindrical partition walls 32 constitute the heat medium passage 30. The height of the upper end of the cylindrical partition wall 32 is set lower than the height of the ceiling of the tank 31, and each compartment (heat medium passage) 30 is formed by the space between the ceiling of the tank 31 and the upper end of each cylindrical partition wall 32. It is communicated. A heat medium inlet hole 33 is formed at a position corresponding to each compartment 30 at the bottom of the tank 31, and one heat connected to the downstream heat medium supply pipe 6 is formed on the ceiling of the tank 31. A medium outlet hole 34 is formed.

  The inlet member 91 is branched from the upstream heat medium supply pipe 6 and connected to each of the inlet holes 33, and the flow rate adjusting valve 36 installed in the pipe 35 for adjusting the amount of inflow heat medium. It has. However, as described with reference to FIG. 3, the same number of compartments 30 as the number of heat collection zones 8 are provided, and heat is independently generated from one heat collection zone 8 to one compartment 30. A medium supply pipe may be connected. This connection mode can also be applied to various heat medium mixing devices described below.

  It can be said that the outlet member 93 is composed of the outlet hole 34 and the portion of the tank 31 above the upper end of each cylindrical partition wall 32. That is, the outlet member 93 is a portion of the tank that divides a space between the ceiling of the tank 31 and the upper end of each cylindrical partition wall 32 including the outlet hole 34. The heat medium divided and passing through each heat medium passage 30 joins at the outlet member 93 and is mixed there. The heat medium passage constituting member in FIG. 5 has four heat medium passages 30a, 30b, 30c, and 30d. However, the number of heat medium passage members is not limited to this number. From the point of view of realizing time difference mixing, the larger the better.

  The connection of the inlet member 91 to each heat medium passage 30 is not limited to the bottom of the tank 31 as in this reference example, but it is preferable that the length of the heat medium passage 30 from the inlet member 91 to the outlet member 93 is longer. When the upper end of the heat medium passage 30 is opened and communicated with the outlet member 93, the inlet member 91 is preferably connected to the bottom of the tank 31 as shown.

In this reference example, all the compartments 30 have substantially the same volume. In addition, the flow rate of the heat medium flowing into each compartment 30 is made different by adjusting the opening degree of the flow rate adjusting valve 36. As a result, the time until the heat medium flowing into each compartment 30 at the same time reaches the outlet member 93 varies depending on the compartments 30a, 30b, 30c, and 30d. As a result, the heat medium that has flowed out of the compartments and joined together is subjected to time difference mixing to suppress temperature fluctuations. This will be described below. For example, if the total heat medium flow rate passing through the inlet member 91 is V, the ratio of the heat medium flow rate flowing into the first to nth heat medium passages having the same volume W is 1: 2: 3: When the flow rate valve is adjusted to be n, the amount of heat medium V / {n · (n + 1) / 2} flowing into the first heat medium passage at a certain time is time t ₁ = W · n · (n + 1) After / 2V elapses, it flows out of the first heat medium passage. The amount of heat medium 2V / {n · (n + 1) / 2} flowing into the second heat medium passage at the same time as the first heat medium passage is time t ₂ = W · n · (n + 1) / 4V = 1/2 × After t ₁ elapses, it flows out from the second heat medium passage. The amount n · V / {n · (n + 1) / 2} of the heat medium flowing into the nth heat medium passage at the same time flows out from the nth heat medium passage after 1 / n × t ₁ .

  In this way, the heat medium flowing into all the heat medium passages at the same time, that is, the heat medium having substantially the same temperature, flows out from each heat medium passage after a different time and is mixed by joining at the outlet member 93. As a result, the heat medium that has flowed into the heat medium mixing apparatus 10 is effectively time-difference mixed, and temperature fluctuations of the heat medium are suppressed. In order to further mix the heat medium flowing out from each heat medium passage with a time difference after joining, a mixer or a stirring device may be installed at the outlet member 93 (for example, a portion in the tank 31 above the heat medium passage 30). Good. As the stirring device, a rotating body such as a screw propeller, a forced jet device or the like can be employed. The electric motor or the like for driving the rotating body is preferably installed outside the tank or the heat medium passage. Further, instead of the rotating body or the like, a structural member that changes the flow mode of the heat medium may be fixed. For example, you may attach a fixed wing | blade to the inner wall face of a flow path.

  In the above reference example, the flow rate of the heat medium flowing into each heat medium passage is an integer ratio, but the present invention is not limited to this configuration, and an arbitrary flow rate ratio can be selected. Further, the heat medium having the same flow rate may be allowed to flow into some of the plurality of heat medium passages as necessary.

  In the heat medium mixing apparatus 10 according to the reference example of FIG. 5, the plurality of heat medium passages have the same volume, and the flow rates of the heat medium flowing into the heat medium passages are different. The inflow heat medium flow rates may be the same by making the volumes of the heat medium passages different.

  The heat medium mixing device 37 according to the reference example shown in FIG. 6 includes a heat medium passage constituting member 39 in which a plurality of compartments 38a, 38b, 38c, and 38d having different volumes are formed. This heat medium passage constituting member 39 is a tank in which a plurality of cylindrical partition walls 32 whose upper ends are opened are concentrically arranged at intervals on the floor surface, similarly to the heat medium passage constituting member of FIG. 31, the space between the peripheral wall of the tank 31 and the cylindrical partition wall 32, and the space between the cylindrical partition walls 32 constitute a heat medium passage 38. As will be described later, the inside of the innermost cylindrical partition wall 32a is a part of a path through which the joined heat medium flows out. The upper ends of all the cylindrical partition walls 32 are spaced from the ceiling of the tank 31 downward.

  However, the interval between the cylindrical partition walls 32 is different from that shown in FIG. 5, and the volume ratio of the compartments 38a, 38b, 38c, and 38d is 1: 2: 3: 4. The inlet member 91 has pipes 35 branched from the upstream heat medium supply pipe 6 and connected to the inlet holes 33 of the tank 31, but the flow rate adjusting valve 36 is not provided. The heat medium of almost the same flow rate is made to flow into all the heat medium passages (compartments) 38.

  The outlet hole 34 of the tank 31 is formed at the center of the bottom of the tank 31 and at a position corresponding to the inside of the innermost cylindrical partition wall 32a. A space inside the innermost cylindrical partition wall 32 a constitutes a part of the outlet member 93. The heat medium flowing into each of the compartments 38a, 38b, 38c, and 38d passes through the space above all the compartments 38 in the tank 31 and the inside of the innermost cylindrical partition wall 32a, and the heat downstream from the outlet hole 34. It flows out to the medium supply pipe 6. Therefore, it can be said that the outlet member 93 is composed of the portion of the tank 31 above each compartment 38, the inner side of the innermost cylindrical partition wall 32a, and the outlet hole 34. That is, the outlet member 93 is a portion of the tank that divides the space between the ceiling of the tank 31 and the upper end of each cylindrical partition wall 32 including the outlet hole 34, and the innermost cylindrical partition wall 32a.

  The heat medium divided and passing through each heat medium passage 38 merges at the outlet member 93 and is mixed there. Also for the heat medium mixing device 37, a mixer or a stirring device is installed at the outlet member 93 (for example, a portion above the compartment 38 in the tank 31 or the inside of the innermost cylindrical partition wall 32 a). May be.

  Also in the heat medium mixing device 37, the heat medium flowing out from the heat medium is time-mixed to suppress temperature fluctuation. This will be described below.

For example, it is assumed that the total heat medium flow rate passing through the inlet member 91 is V, and the volume ratio of the n heat medium passages from the first to the nth is 1: 2: 3:. The amount of heat medium v = V / n flowing into the first heat medium passage having the volume W at a certain time flows out from the first heat medium passage after time t ₁ = 1 W / v has elapsed. The same amount of heat medium v = V / n flowing into the second heat medium passage having a volume of 2 W at the same time as the first heat medium passage is equal to the second heat medium passage after the time t ₂ = 2 W / v = 2 t ₁ has elapsed. Spill from. The amount of heat medium v = V / n flowing into the nth heat medium passage having the volume nW at the same time flows out from the nth heat medium passage after nt ₁ .

  In this way, the heat medium that has flown into all the heat medium passages at the same time, that is, the heat medium having substantially the same temperature value, flows out from each heat medium passage after a different time, and merges and mixes at the outlet member 93. As a result, the heat medium flowing into the heat medium mixing device 37 is effectively time-difference mixed, and temperature fluctuations of the heat medium are suppressed.

  In the above reference example, the volume ratio of the heat medium passage is an integer ratio, but the present invention is not limited to this configuration, and an arbitrary volume ratio can be selected. In addition, some of the plurality of heat medium passages may have the same volume as necessary. In this reference example, the inner side of the innermost cylindrical partition wall 32a is an outflow path through which the heat medium flows out, but is not limited to this configuration. The outermost compartment (nth passage) or the intermediate compartment may be set as the outflow path.

  The tank 31 described above is not limited to a cylindrical shape. In addition to the cylindrical shape, various shapes such as a polygonal cylindrical shape and a spherical shape can be adopted. Moreover, although the cylindrical partition wall 32 which forms a compartment in the tank 31 is arrange | positioned concentrically, it is not limited to this structure, You may arrange | position eccentrically. Furthermore, the cross-sectional shape of each heat medium passage does not need to be uniform along the flow direction of the heat medium. It may be enlarged and reduced, and the passage may be curved or meandering. The heat medium passage component, the inlet member, and the outlet member are not limited to the configurations shown in FIGS. 5 and 6, and various suitable configurations can be adopted.

  For example, the heat medium passage constituting member 41 in the heat medium mixing device 40 shown in FIG. 7 is divided into a plurality of heat medium passages (compartments) by partitioning the inside of the tank 31 with a plurality of horizontal partition walls 42 spaced vertically. 43 is formed. The horizontal partition walls 42 are arranged at equal intervals, and all the compartments 43 have substantially the same volume. An entrance hole 33 is formed at one end of each compartment 43, and an exit hole 34 is formed at the other end. The inlet hole 33 and the outlet hole 34 are not opposed to each other, and the outlet hole 34 is formed at a position deviating from the central axis of the inlet hole 33. This is because part of the heat medium flowing into the compartment 43 from the inlet hole 33 is prevented from flowing out of the outlet hole in a very short time, and the heat medium stays in the compartment 43 as long as possible. . Although not shown, forming the outlet hole 34 at a position deviating from the central axis of the inlet hole 33 is not limited to the heat medium passage constituting member 41 of FIG. Can also be applied.

  The compartment 43 is partitioned by the horizontal partition wall 42, but is not limited to such a configuration. For example, the partition chamber 43 may be partitioned by a partition wall that extends in the vertical direction, or may be partitioned in a grid shape or a honeycomb shape vertically and horizontally. Good. Moreover, you may divide radially like the cross section of a citrus fruit.

  The inlet member 91 is the same as that shown in FIG. 5, a pipe 35 branched from the upstream heat medium supply pipe 6 and connected to each of the plurality of inlet holes 33, and a flow rate installed in the pipe 35. An adjustment valve 36 is provided. The flow rate of the heat medium flowing into each compartment 43 is made different by adjusting the opening degree of the flow rate adjusting valve 36. In addition, as shown in FIG. 3, you may connect directly to each compartment 43 of the heat-medium channel | path structural member 41 independently, without integrating each heat-medium supply piping in each heat collection zone.

  The outlet member 93 is connected to the plurality of outlet holes 34 and is constituted by a pipe 44 that is integrated and connected to the downstream heat medium supply pipe 6. The heat medium flowing out of the compartment 43 with a time difference starts to be mixed in the integrated pipe portion 44. Therefore, in order to promote mixing of the heat medium, a mixer or a stirring device may be installed in the outlet member 93 (for example, an integrated pipe portion). In the heat medium passage constituting member 41 as well, as described with respect to the heat medium mixing device 10 in FIG. 5, the flowing heat medium is effectively time-diffused and temperature fluctuations of the heat medium are suppressed.

  Even in the case of the heat medium mixing device 40 having a plurality of upper and lower compartments as shown in FIG. 7, for example, the flow rate of the heat medium flowing into each compartment is substantially the same, and the compartment volumes are mutually equal. May be different. In this case, it is not particularly necessary to install a flow rate adjusting valve on the inlet member. Even in the heat medium mixing device 40, as described with respect to the heat medium mixing device 37 of FIG. 6, the flowing heat medium is effectively time-diffused and temperature fluctuation of the heat medium is suppressed.

  The heat medium passage constituting member is not limited to the heat medium passage constituting members 29, 39 and 41 in which a plurality of compartments are formed in one tank as shown in FIGS. It may be composed of individual containers.

  FIG. 8 shows a heat medium mixing device 45 having a heat medium passage constituting member 47 composed of a plurality of independent containers 46 as described above. Each container 46 constitutes a compartment (heat medium passage), and all have substantially the same volume. An inlet hole 33 is formed at the lower end (which may be the upper end or the side surface) of each container 46, and an outlet hole 34 for the heat medium is formed at the upper end (which may be the lower end or the side surface).

  The inlet member 91 is the same as that shown in FIGS. 5 and 7, the pipe 35 branched from the upstream heat medium supply pipe 6 and connected to each of the plurality of inlet holes 33, and the branch of the pipe 35. A flow rate adjusting valve 36 is provided at each of the portions. The flow rate of the heat medium flowing into each compartment 46 is made different by adjusting the opening degree of the flow rate adjusting valve 36. The outlet member 93 is the same as that shown in FIG. 7, and includes a pipe 44 connected to the plurality of outlet holes 34 and connected to the downstream heat medium supply pipe 6. The heat medium flowing out of the compartment 46 with a time difference starts to be mixed in the integrated pipe portion 44. Therefore, in order to promote mixing of the heat medium, a mixer or a stirring device may be installed in the outlet member 93 (for example, an integrated pipe portion). In the heat medium mixing device 45 as well, as described with respect to the heat medium mixing device 10 in FIG. 5, the flowing heat medium is effectively time-diffused and temperature fluctuations of the heat medium are suppressed. In addition, since each heat medium passage is constituted by an independent container, the installation work of the partition walls for partitioning the compartments can be omitted, so that the manufacture becomes easy.

  Even in a heat medium mixing apparatus having a plurality of independent containers 46 as heat medium passages as shown in FIG. 8, for example, the flow rate of the heat medium flowing into each container is substantially the same, and the volumes of the containers are different from each other. You may let them. In that case, it is not particularly necessary to install a flow rate adjusting valve on the inlet member. Even in such a heat medium mixing device, as described with respect to the heat medium mixing device 37 of FIG. 6, effective time difference mixing of the flowing heat medium is performed, and temperature fluctuation of the heat medium is suppressed. The shape of the container 46 described above is not limited, and various shapes such as a cylindrical shape, a polygonal cylindrical shape, and a spherical shape can be employed. Since each heat medium passage is composed of one independent container, the volume of the container can be easily made different. Each container can be formed from, for example, pipe-shaped members having different diameters or pipe-shaped members having different lengths.

  The heat medium mixing device 48 shown in FIG. 9 is configured by integrally binding the container 46 shown in FIG. Except that the plurality of containers 46 are bundled in a compact manner, the configuration is almost the same as that of the heat medium mixing device 45 shown in FIG. 8, so that the same members as those in FIG. Is omitted. The heat medium mixing device 48 can save installation space.

  10 is a partially cutaway perspective view showing an example of a heat medium mixing apparatus that can be installed in the solar combined power generation facility of FIG. 1, and FIG. 11 is cut by a plane along the central axis of the heat medium mixing apparatus of FIG. It is a longitudinal section. The heat medium mixing apparatus 50 according to the embodiment of the present invention shown in FIGS. 10 and 11 is one in which a porous plate 52 having a large number of through holes 52a is disposed inside a tank 51 (mixing container). 10 is a partially cutaway perspective view of the heat medium mixing device 50, and FIG. 11 is a longitudinal sectional view. An inlet hole 33 and an outlet hole 34 are formed in the peripheral wall of the tank 51, the upstream heat medium supply pipe 6 is connected to the inlet hole 33, and the downstream heat medium supply pipe 6 is connected to the outlet hole 34. ing. 10 and 11, both the inlet member that connects the inlet hole 33 and the heat medium supply pipe 6 and the outlet member that connects the outlet hole 34 and the heat medium supply pipe 6 are omitted. The perforated plate 52 is arranged in the vertical direction so as to divide the space inside the tank 51 into a space on the inlet hole 33 side and a space on the outlet hole 34 side. In this embodiment, the inlet hole 33 and the outlet hole 34 are formed at opposing positions on the peripheral wall of the tank 51, and the perforated plate 52 is arranged vertically so as to be orthogonal to a virtual straight line connecting the inlet hole 33 and the outlet hole 34. However, it is not limited to such a configuration.

  In the heat medium mixing device 50, the inlet hole 33 and the portion of the tank 51 that connects the heat medium supply pipe 6 to the inlet hole 33 constitute an inlet member, and the outlet hole 34 and the outlet hole 34 are heated. The portion of the tank 51 that connects the medium supply pipe 6 constitutes the outlet member.

  A virtual straight line L (hereinafter referred to as the central axis of the inlet hole 33) extending in the direction of the central axis of the portion of the porous plate 52 connected to the inlet hole 33 of the heat medium supply pipe 6 from the center of the inlet hole 33. No through holes are formed around the intersecting points. This is called a non-porous region 53 (shown surrounded by a two-dot chain line in the figure). The non-hole region 53 is formed to prevent a part of the heat medium flowing from the inlet hole 33 from reaching the outlet hole 34 in a very short time, and to retain the heat medium in the tank 51 as long as possible. ing. Most of the heat medium flowing into the tank 51 from the inlet hole 33 collides with the non-hole region and then passes through each through hole 52a, so that the heat medium stays in the tank longer. In the embodiment of FIG. 10, the non-hole region 53 has a range substantially the same as the shape of the inlet hole 33 and the outlet hole 34 as an example, but may be a range beyond that.

  The tank 51 and the porous plate 52 constitute a heat medium passage constituting member. That is, the large number of through holes 52a of the perforated plate 52 each constitute a heat medium passage. When the heat medium flowing into the tank 51 from the inlet hole 33 passes through the through hole 52a of the perforated plate 52 and reaches the outlet hole 34, the direction and length of the streamline are different when passing through the different through hole 52a. . From the viewpoint of time difference mixing of the heat medium, it can be said that this is a different heat medium passage.

  In this heat medium mixing device 50, the heat medium is mixed with time difference in the space on the inlet hole side from the porous plate 52, and further mixed with time difference in the space on the outlet hole side through the through hole 52a of the porous plate. . Therefore, the temperature variation of the heat medium is effectively suppressed.

  The perforated plate 52 may be installed in the compartments 30, 38, 43 and the container 46 in the heat medium passage constituting members 29, 39, 41, 47, 49 shown in FIGS. If it does so, the time-difference mixing of a heat medium will be attained also in each heat medium channel | path.

  The heat medium mixing device 54 shown in FIG. 12 is configured such that two (or three or more) perforated plates 52 are arranged substantially in parallel with each other inside a tank 51. Therefore, three spaces partitioned by the perforated plate 52 are formed inside the tank 51. Compared with the heat medium mixing device 50 of FIG. 10, in the heat medium mixing device 54, further time difference mixing is performed by the space between the two perforated plates 52, so that the temperature variation of the heat medium is more effectively suppressed. be able to. The non-porous region 53 may be formed in the perforated plate on the outlet hole 34 side.

  FIG. 13 shows a tank 51 as a heat medium passage constituting member incorporating a porous plate 52, which is the same as the heat medium mixing apparatus 50 of FIGS. 10 and 11. However, between the inlet hole 33 of the tank 51 and the heat medium supply pipe 6, an inclined pipe 55 that is continuous with the heat medium supply pipe 6 and is inclined upward from the horizontal is interposed. The inclination angle α from the horizon is not limited. By doing so, the inflow direction of the heat medium into the tank 51 is deviated from the position of the outlet hole 34. By making this inclined pipe 55 attachable to and detachable from the heat medium supply pipe 6 and the tank 51, it is possible to replace it with an inclined pipe having a different inclination angle. The use of the inclined pipe 55 allows the flow direction of the heat medium into the tank 51 even when using a perforated plate that does not form the non-porous region 53 (the through holes 52a are uniformly formed on the entire surface). Since it can keep away from the position of the exit hole 34, it is preferable.

  The inclined tube 55 is not installed only in the heat medium mixing device incorporating the perforated plate 52. For example, the outlet hole 34 may be removed from the extension line of the central axis of the inlet hole 33 of the heat medium passage by connecting to the pipe 35 constituting the inlet member shown in FIGS. In this case, the direction of the inclined tube 55 and the inclination angle from the central axis of the inlet hole may be selected in accordance with the heat medium passage.

  FIG. 14 shows another heat medium mixing device 56. This heat medium mixing device 56 includes a tank 51 as a heat medium passage constituting member incorporating a porous plate 52, which is the same as the heat medium mixing device 50 of FIGS. However, a heat medium inflow device 57 for changing the inflow direction of the heat medium is disposed between the inlet hole 33 of the tank 51 and the heat medium supply pipe 6. The heat medium mixing device 50 originally exhibits the function of mixing the heat medium that has flowed into the inside thereof with a time difference, but the heat medium inflow device 57 can change the mode of the heat medium flow, further improving the uniform mixing effect. Can be improved.

  As is apparent from FIG. 15, the heat medium inflow device 57 includes a housing 58 disposed between the inlet hole 33 of the tank 51 and the heat medium supply pipe 6, and the interior of the housing 58. And a plurality of variable louvers 59 accommodated at intervals in the vertical direction. Each variable louver 59 is disposed substantially horizontally, and its rotation shaft 59 a protrudes outside the housing 58. The protruding portion of the rotation shaft 59a can be rotated by known means such as an electric motor, a hydraulic motor, a pneumatic cylinder, a hydraulic cylinder, and the louver 59 can be swung in the vertical direction. When the louver 59 is swung in the vertical direction, the inflow direction of the heat medium can be changed accordingly. The number of louvers to be installed is not limited and may be one or more.

  Further, as shown in FIG. 15, a tilt direction indicator 59 b is installed on the rotation shaft 59 a protruding to the outside of the housing 58, and the tilt direction of the louver 59 from the outside of the heat medium inflow device 57, and consequently the heat medium. The inflow direction can be displayed. Further, the inclination direction of the louver 59 is detected by a detector (not shown), and the detection signal is transmitted to the control device 70 (FIGS. 1 to 4), and displayed on a remote display device (not shown) based on the detection signal. You may make it make it. Further, a see-through window may be formed in the housing 58 so that the inclination direction of the louver 59 can be confirmed from the outside.

  As described above, by installing the temperature measuring device in each of the heat medium supply pipes 6 on the upstream side and the downstream side of the heat medium mixing device, the temperature fluctuation suppressing effect of the heat medium mixing device can be reduced by comparing each measurement result. Can be monitored. In that case, for example, the temperature measurement result may be transmitted from the temperature measurement device to the control device 70. Then, the controller 70 calculates the deviation between the set value and the detected value of the temperature fluctuation suppression level and fills this deviation (so that the uniform time difference mixing effect is maximized). The heat medium inflow angle 57 (inclination angle of the louver 59) can be controlled. Further, if the temperature of the heat medium is continuously measured by this temperature measuring device while the control device 70 changes the tilt angle of the louver 59 and data is accumulated, the optimum tilt angle of the louver 59 can be known for time difference mixing. Can do. The heat medium inflow device 57 can be applied to both the heat medium mixing device described above and the heat medium mixing device described later.

  The heat medium inflow device 57 of FIG. 14 accommodates the variable louver 59 inside a housing 58 installed outside the tank, but is not limited to such a configuration. For example, the variable louver 59 may be installed at a position close to the inlet in the tank so as to be swingable from the outside of the tank without providing a housing.

  16, two (or three or more) inlet holes 33 and two outlet holes (or three or more) may be provided on the peripheral wall of the tank 51 (or the bottom of the tank). Is formed. As an inlet member for connecting each inlet hole 33 and the heat medium supply pipe 6, a pipe 60 having a branch pipe 60 a that branches from the heat medium supply pipe 6 toward each inlet hole 33, and the branch pipe 60 a are installed. A flow rate adjusting valve (or stop valve) 62 is provided. Moreover, as an outlet member for connecting each outlet hole 34 and the heat medium supply pipe 6, a pipe 61 having a branch pipe 61 a integrally connected to the heat medium supply pipe 6 from each outlet hole 34, and the above branch pipe A flow rate adjustment valve 62 installed at 61a is disposed. Note that only one outlet hole 34 may be formed, and a plurality of inlet holes 33 may be formed.

  The control device 70 described above changes the inflow position of the heat medium into the tank 51 by appropriately selecting and opening and closing the flow rate adjustment valve 62 on the inlet side, and adjusting the flow rate, and the heat at the heat medium inflow position. The medium flow rate can be varied. In this way, the control device 70 performs control so as to optimize the mode of the heat medium flow in the tank 51. This optimal mode applies a data set that is most suitable for similar operating conditions (heat medium temperature, heat medium flow rate, tank residence time, etc.) based on a data set created based on a lot of operation data. be able to. For example, the control device 70 calculates a deviation between the set value of the temperature fluctuation suppression level and the measured fluctuation suppression level based on the detection values of the two temperature measurement devices described above, and fills this deviation (a uniform time difference mixing effect is obtained). Adjust the flow rate and change the inflow position of the heat medium (maximum). This flow rate adjustment is applicable to any heat medium mixing device that can adjust the flow rate of the flowing heat medium, such as the heat medium mixing device shown in FIGS. 5 and 7 to 9. Can do.

  If the control device 70 operates the outlet-side flow rate valve 62 shown in FIG. 16 in synchronization with the operation of the inlet-side flow rate adjustment valve 62, compared to the control of the inlet-side flow rate adjustment valve 62 alone, It becomes possible to realize a more preferable mode of the heat medium flow for the time difference mixing of the heat medium. The branched third container pipe 60 on the inlet side can be combined with the inclined pipe 55 and the heat medium inflow device 57 described above.

  A combination of the inclined pipe 55 and the heat medium inflow device 57 described above with a heat medium mixing device is also included in the heat medium temperature fluctuation suppressing device described here. In addition, in the various heat medium mixing devices described above, a pressure increasing device or a suction device for compensating for the pressure loss of the heat medium may be installed.

  17 to 22, in the heat medium supply facility 11, the above-described various heat medium mixing devices (hereinafter represented by the heat medium mixing device 50 shown in FIG. 11) are connected to the heat medium supply pipe 6. Various aspects of piping are illustrated. However, the piping is not limited to the range shown in these drawings.

  FIG. 17 shows a heat medium mixing device 50 that is installed in parallel to the heat medium supply pipe 6. In other words, the heat medium mixing device 50 installed in the bypass pipe attached to the heat medium supply pipe 6 is shown. That is, an upstream side inlet pipe 64 that communicates the inlet member 91 of the tank 51 and the heat medium supply pipe 6, and an outlet pipe 63 that communicates the outlet member 93 and the heat medium supply pipe 63 are provided. The upstream side inlet pipe 64 is connected to the upstream side from the connection portion between the heat medium supply pipe 6 and the outlet pipe 63. The upstream side inlet pipe 64 and the outlet pipe 63 constitute the bypass pipe.

  The upstream inlet pipe 64 is provided with a pump 65 as a heat medium pressure feeding device for feeding the heat medium into the tank 51. Therefore, part of the supplied heat medium flows into the tank 51 through the upstream side inlet pipe 64, the heat medium is mixed with time in the tank 51, and the same amount of heat medium passes through the outlet pipe 63 to the tank. 51 returns to the heat medium supply pipe 6. The heat medium from the tank 51 that has returned to the heat medium supply pipe 6 is mixed with the heat medium flowing through the heat medium supply pipe 6 by time difference. Since the upstream side inlet pipe 64 is connected to the upstream side of the heat medium supply pipe 6 with respect to the outlet pipe 63, the pump 65 can be omitted by piping design considering pressure loss. The same applies to an upstream side inlet pipe 64 shown in FIG.

  FIG. 18 also shows a heat medium mixing device 50 installed in parallel to the heat medium supply pipe 6. As illustrated, an inlet pipe 66 and an outlet pipe 63 are connected between the inlet member 91 and outlet member 93 of the tank 51 and the heat medium supply pipe 6, respectively. However, the inlet pipe 66 is connected to the downstream side from the connection portion between the heat medium supply pipe 6 and the outlet pipe 63. Therefore, this inlet pipe 66 is called a downstream side inlet pipe 66. A pump 65 for sending the heat medium into the tank 51 is installed in the downstream side inlet pipe 66.

  According to such a configuration, even if the downstream side inlet pipe 66 is connected to the downstream side of the connection part with the outlet pipe 63 in the heat medium supply pipe 6, the heat medium is passed through the downstream side inlet pipe 66 by the pump 65 in the tank 51. The time difference is mixed and flows out from the outlet member 93 to the outlet pipe 63. Then, the heat medium that has returned from the outlet pipe 63 to the heat medium supply pipe 6 is again mixed with the heat medium flowing through the heat medium supply pipe 6 by time difference. That is, since a part of the heat medium in which the temperature fluctuation is suppressed circulates, effective time difference mixing is performed. Then, as the length of the downstream inlet pipe 66 is increased, time difference mixing is realized in the tank 51 for a longer time.

  FIG. 19 also shows a heat medium mixing device 50 installed in parallel to the heat medium supply pipe 6. As illustrated, an outlet pipe 63 and an upstream inlet pipe 64 including a pump 65 are connected between the tank 51 and the heat medium supply pipe 6. That is, the upstream side inlet pipe 64 is connected to the inlet member 91 of the tank 51, and the outlet pipe 63 is connected to the outlet member 93. However, a further inlet member 92 is formed in the tank 51, and a downstream inlet pipe 66 is connected to the inlet member 92. The downstream side inlet pipe 66 is connected to the downstream side of the connection portion with the outlet pipe 63 in the heat medium supply pipe 6. A pump 65 for sending the heat medium into the tank 51 is installed in the downstream side inlet pipe 66. As illustrated, the connection positions (inlet members 91 and 92) of the upstream side inlet pipe 64 and the downstream side inlet pipe 66 to the tank 51 are close to each other.

  According to this configuration, a part of the heat medium is pumped to the tank 51 from the upstream side of the heat medium supply pipe 6 through the upstream side inlet pipe 64, and at the same time, from the downstream side of the heat medium supply pipe 6 to the downstream side inlet pipe 66. A part of the heat medium is pumped, mixed with time difference, and flows out from the outlet member 93 to the outlet pipe 63. That is, since a part of the heat medium in which the temperature fluctuation is suppressed circulates, time difference mixing for a long time is realized in the tank 51. The longer the length of the downstream inlet pipe 66, the longer the residence time of the heat medium mixed with time difference, and a more preferable time difference mixing is realized.

  The tank 51 of the heat medium mixing apparatus 50 shown in FIG. 20 has one outlet member 93 and two types of inlet members 91 and 92. The upstream heat medium supply pipe 6 is connected to one inlet member 91, the downstream heat medium supply pipe 6 is connected to the outlet member 93, and the downstream heat medium supply pipe 6 is connected to the other inlet member 92. A return pipe 67 connected to is connected. The two inlet members 91 and 92 are formed close to each other. A pump 65 for sending the heat medium into the tank 51 is installed in the return pipe 67.

  According to such a configuration, a part of the heat medium whose temperature fluctuation is suppressed in the tank 51 is returned again to the tank 51 and again time-difference-mixed, so that more preferable time-difference mixing is realized. As the length of the return pipe 67 is increased, the residence time of the heat medium mixed by time difference becomes longer.

  FIG. 21 shows a heat medium mixing device 50 installed in a bypass pipe composed of an upstream inlet pipe 64 and an outlet pipe 63 connected to the heat medium supply pipe 6 as shown in FIG. A pump 65 for sending the heat medium to the tank 51 is installed in the upstream side inlet pipe 64. The heat medium supply pipe 6 is further provided with a return pipe 68 that bypasses the heat medium mixing device 50 and returns the heat medium from the downstream side to the upstream side. The return pipe 68 is provided with a pump 65 that pumps the heat medium upstream.

  According to this configuration, a part of the heat medium is pumped through the return pipe 68 from the downstream side of the heat medium mixing apparatus 50 in the heat medium supply pipe 6 to the upstream side, and mixed into the heat medium mixing apparatus 50 after time difference mixing. . Further, time difference mixing is performed in the heat medium mixing apparatus 50. That is, since a part of the heat medium in which the temperature fluctuation is suppressed circulates, time difference mixing for a long time is realized in the tank 51. The longer the length of the return pipe 68 is, the longer the residence time of the heat medium mixed with time difference is, and more preferable time difference mixing is realized.

  The upstream heat medium supply pipe 6 is connected to the inlet member 91 and the downstream heat medium supply pipe 6 is connected to the outlet member 93 of the tank 51 of the heat medium mixing apparatus 50 shown in FIG. Further, a return pipe 68 that bypasses the heat medium mixing device 50 in the heat medium supply pipe 6 and returns the heat medium from the downstream side to the upstream side is provided. The return pipe 68 is provided with a pump 65 that pumps the heat medium upstream.

  Even with this configuration, a part of the heat medium in which temperature fluctuation is suppressed circulates in the heat medium mixing apparatus 50, so that time difference mixing over a long time is realized in the tank 51. The longer the length of the return pipe 68 is, the longer the residence time of the heat medium mixed with time difference is, and more preferable time difference mixing is realized.

  The heat medium temperature fluctuation suppressing device according to the reference example shown in FIG. 23 does not include the heat medium mixing device, and performs time difference mixing of the heat medium by devising the piping. That is, this temperature fluctuation suppressing device is obtained by deleting the heat medium mixing device 50 from the temperature fluctuation suppressing device shown in FIG. Specifically, a return pipe 68 for returning the heat medium from the downstream side to the upstream side in the heat medium supply pipe 6 is piped, and a pump 65 is installed in the return pipe 68. Also with this configuration, since a part of the heat medium circulates through the heat medium supply pipe 6, time difference mixing of the heat medium is realized.

  Further, the pump 65 in the return pipe 68 may be replaced and installed so that the pumping direction is from upstream to downstream. That is, the return pipe 68 is not a return pipe for returning the fluid but a pipe for rapidly pumping a part of the heat medium toward the heat exchanger 7. According to this configuration, time-difference mixing of the heat medium is realized at the connection portion with the heat medium supply pipe 6 on the downstream side of the partial rapid pumping pipe.

  The temperature variation suppressing device for the heat medium according to the reference example shown in FIG. 24 also does not include the heat medium mixing device, and performs time difference mixing of the heat medium by devising the piping. The heat medium supply pipe 6 is provided with a return pipe 69 that bypasses the heat exchanger 7 and returns the heat medium from the downstream side (return pipe 9) to the upstream side. The return pipe 69 is provided with a pump 65 that pumps the heat medium upstream.

  According to this configuration, a part of the heat medium is pumped through the return pipe 69 from the downstream side of the heat exchanger 7 in the heat medium supply pipe 6 to the upstream side, mixed with time difference, and supplied to the heat exchanger 7 again. . The heat medium that is always time-mixed except for when the heat medium supply facility is started is supplied to the heat exchanger 7.

  A residence tank for temporarily retaining the heat medium passing through the heat medium supply pipe 6 is installed on the inlet side and / or the outlet side of the heat medium temperature fluctuation suppression device (FIGS. 5 to 24) described above. It may be left. By temporarily retaining the heat medium in a relatively large-capacity retention tank, the heat medium is mixed with the time difference there. And it is preferable to give a high heat capacity to this staying tank by a known technique since the temperature fluctuation of the heat medium is further suppressed. Furthermore, it is preferable to install a pumping device such as a pump in order to send the heat medium from the inlet side residence tank to the temperature fluctuation suppressing device and to send the heat medium from the outlet side residence tank to the heat exchanger.

  In addition to installing each of the above-described various temperature fluctuation suppression devices (FIGS. 5 to 24) as a single unit, a plurality of units may be installed in series or in parallel.

  In the embodiment described above, a combined power generation facility using a gas turbine and a steam turbine is taken as an example, but the present invention is not particularly limited to the combined power generation facility. The above-described heat medium mixing device and heat medium supply facility can also be applied to steam turbine power generation that does not use a gas turbine. Furthermore, the present invention can be applied to facilities other than these power generation facilities that cannot avoid temperature fluctuations of the heat medium.

  Further, the above-described embodiment shows an example, and various modifications can be made without departing from the gist of the present invention, and the present invention is not limited to the above-described embodiment.

  According to the present invention, it is possible to suppress and mitigate the temperature fluctuation by mixing the liquid heat medium supplied to the heat exchanger while the temperature fluctuates as in a solar thermal power generation facility with a simple structure by time difference. it can. Therefore, it is useful for facilities that perform power generation using a heat medium that cannot avoid the temperature fluctuation.

DESCRIPTION OF SYMBOLS 1 ... Power generation equipment 2 ... Steam turbine 3 ... Gas turbine 4 ... (Condensing type) Heat collecting device 5 ... Heat absorption pipe 6 ... Heat medium supply Pipe 7 ... Heat exchanger 8 ... Heat collection zone 9 ... Return pipe 10 ... Heat medium mixing device 11 ... Heat medium supply equipment 12 ... Generator 13 ······································································································································································ Condenser 15 Pump 20 ... First steam supply pipe 21 ... Second steam supply pipe 22 ... Chimney 23 ... Heat medium supply equipment 24 ... Heat medium mixing device 25 ... · Heat medium supply equipment 26 ··· Heat medium supply equipment 27 ··· Heat storage device 28 ··· Bypass pipe 29 ··· Heat medium passage component 30 · · · Compartment ( Medium passage)
31 ... Tank 32 ... Cylindrical partition wall 33 ... Inlet hole 34 ... Outlet hole 35 ... Pipe 36 ... Flow control valve 37 ... Heat medium mixing Device 38 .... Compartment (heat medium passage)
··· Heat medium passage constituting member 40 ··· Heat medium mixing device 41 ··· Heat medium passage constituting member 42 ··· Horizontal partition wall 43 ··· Partition (heat medium passage)
44... Piping 45... Heat medium mixing device 46.
··· Heat medium passage component 48 ··· Heat medium mixing device 49 ··· Heat medium passage component 50 ··· Heat medium mixing device 51 ··· Tank (mixing container)
52... Perforated plate 53... Non-porous region 54... Heat medium mixing device 55. ··· Housing 59 ··· Variable louver 60 ··· Piping 61 ··· Piping 62 ··· Flow rate adjusting valve 63 ··· Outlet piping 64 · · · Upstream inlet piping 65 · · ... Pump 66 ... Downstream inlet pipe 67 ... Return pipe 68 ... Return pipe 69 ... Return pipe 70 ... Control device 80 ... Flow control valve 81 .... Temperature measuring device 82 ... Exhaust gas pipes 91, 92 ... Inlet member 93 ... Outlet member

Claims (22)

A heat medium temperature fluctuation suppressing device disposed in a heat medium supply passage for supplying a liquid heat medium to a heat exchanger,
A heating medium mixing device for mixing the heating medium;
The heat medium mixing device comprises:
A mixing vessel having a plurality of heat medium passages;
An inlet member provided in the mixing container for allowing the heat medium to flow into the mixing container from the heat medium supply passage;
An outlet member provided separately from the inlet member in the mixing container, for the heat medium to flow out from the mixing container to the heat medium supply passage;
A perforated plate arranged in the mixing container so as to partition into the space on the inlet member side and the space on the outlet member side, and having a plurality of through holes forming the plurality of heat medium passages; The heat medium continuously flowing in from the inlet member is configured to be able to merge after flowing through the plurality of heat medium passages in the mixing container with a time difference and to flow out of the outlet member. Heat medium temperature fluctuation suppression device. The heat medium temperature fluctuation suppressing device according to claim 1, wherein a plurality of the perforated plates are arranged at intervals. The said through-hole is formed in the said porous plate in the range except the part of the porous plate which cross | intersects the heat-medium flow path center axis | shaft of the said inlet member toward the inside of the said mixing container, and its vicinity. Heat medium temperature fluctuation suppression device. A heat medium inflow device installed on one of the inlet member and the vicinity of the inlet member in the mixing container;
The heat medium temperature fluctuation suppressing device according to claim 1, wherein the heat medium inflow device is configured to change an inflow angle of the heat medium into the mixing container. 5. The heat according to claim 4, wherein the heat medium inflow device has a variable louver, and the variable louver is at least one louver that is swingably mounted so that an inclination angle thereof can be changed from the outside. Medium temperature fluctuation suppression device. 2. The heat medium according to claim 1, wherein a plurality of the inlet members are arranged, and the inlet member that allows the heat medium to flow into the mixing container can be selected and switched among the inlet members. Temperature fluctuation suppression device. The heat according to claim 6, wherein a plurality of the outlet members are formed, and the outlet member that allows the heat medium to flow out of the mixing container can be selected and switched in synchronization with the switching of the inlet member. Medium temperature fluctuation suppression device. The heat according to claim 1, wherein a plurality of the inlet members are formed, a flow rate adjusting device is installed in each inlet member, and the flow rate of the heat medium flowing through each inlet member can be changed. Medium temperature fluctuation suppression device. The heat medium temperature fluctuation suppressing device according to claim 1, wherein a stirring device for stirring the heat medium is installed in the heat medium mixing device. An inlet temperature measurement device for measuring an inlet temperature of the heat medium, installed in one of the heat medium supply passage connected to the inlet member and the inlet member;
An outlet temperature measuring device for measuring an outlet temperature of the heat medium, installed in one of the heat medium supply passage connected to the outlet member and the outlet member;
The temperature fluctuation suppressing device for a heat medium according to claim 1, comprising: Based on the measured values of the inlet temperature measuring device and the outlet temperature measuring device, the temperature variation of the heat medium flowing into the mixing vessel is compared with the temperature variation of the heat medium flowing out of the mixing vessel, and this comparison result The heat medium temperature fluctuation suppressing device according to claim 10, further comprising: a control device that controls to change an inflow amount of the heat medium into the mixing container based on the above. Based on the measured values of the inlet temperature measuring device and the outlet temperature measuring device, the temperature variation of the heat medium flowing into the mixing vessel is compared with the temperature variation of the heat medium flowing out of the mixing vessel, and this comparison result The heat medium temperature fluctuation suppressing device according to claim 10, further comprising: a control device that controls to change the inflow direction of the heat medium into the mixing container based on the above. Heating equipment for heating the liquid heat medium by sunlight;
A heat exchanger for heating the feed water with a heat medium supplied from the heating facility;
A heat medium supply passage for supplying a heat medium from the heating facility to the heat exchanger;
A temperature fluctuation suppressing device disposed in the heat medium supply passage for suppressing temperature fluctuation of the heat medium;
A heat medium supply facility, wherein the temperature fluctuation suppressing device is the temperature fluctuation suppressing device for a heat medium according to any one of claims 1 to 12. In the heat medium temperature fluctuation suppressing device,
An outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
An upstream inlet passage connecting an inlet member of the heat medium mixing device and a portion upstream of the connection point of the outlet passage in the heat medium supply passage;
The heat medium supply facility according to claim 13, further comprising a heat medium pumping device disposed in the upstream inlet passage and pumping the heat medium toward the heat medium mixer. In the heat medium temperature fluctuation suppressing device,
An outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
A downstream inlet passage that connects the inlet member of the heat medium mixing device and a portion of the heat medium supply passage that is downstream from the connection point of the outlet passage;
The heat medium supply equipment according to claim 13, further comprising a heat medium pumping device installed in the downstream side inlet passage and pumping the heat medium toward the heat medium mixing device. In the heat medium temperature fluctuation suppressing device,
An outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
An upstream inlet passage connecting an inlet member of the heat medium mixing device and a portion upstream of the connection point of the outlet passage in the heat medium supply passage;
A downstream inlet passage that connects the inlet member of the heat medium mixing device and a portion of the heat medium supply passage that is downstream from the connection point of the outlet passage;
The heat medium supply equipment according to claim 13, further comprising a heat medium pumping device disposed in each of the upstream and downstream inlet passages to pump the heat medium toward the heat medium mixing device. In the heat medium temperature fluctuation suppressing device,
An outlet passage connecting the outlet member of the heat medium mixing device and the heat medium supply passage;
An upstream inlet passage connecting an inlet member of the heat medium mixing device and a portion upstream of the connection point of the outlet passage in the heat medium supply passage;
A return passage that connects a portion of the heat medium supply passage downstream from the connection point of the outlet passage and a portion of the heat medium supply passage upstream of the connection point of the upstream inlet passage;
A heat medium pumping device that is installed in the upstream inlet passage and pumps the heat medium toward the heat medium mixer;
The heat medium supply equipment according to claim 13, further comprising a heat medium pumping device that is installed in the return passage and pumps the heat medium toward the upstream heat medium supply passage. In the heat medium temperature fluctuation suppressing device, the heat medium mixing device has two types of inlet members, and a downstream heat medium supply passage is connected to the outlet member of the heat medium mixing device. An upstream heat medium supply passage is connected to one inlet member of the apparatus,
A return passage connecting the other inlet member of the heat medium mixing device and the heat medium supply passage on the downstream side;
The heat medium supply equipment according to claim 13, further comprising a heat medium pumping device installed in the return passage and pumping the heat medium toward the heat medium mixing device. In the heat medium temperature fluctuation suppressing device, a downstream heat medium supply passage is connected to the outlet member of the heat medium mixing device, and an upstream heat medium supply passage is connected to the inlet member of the heat medium mixing device. And
A return passage connecting a heat medium supply passage upstream from the heat medium mixing device and a heat medium supply passage downstream from the heat medium mixing device;
The heat medium supply equipment according to claim 13, further comprising: a heat medium pumping device installed in the return path and pumping the heat medium from the downstream side to the upstream side of the heat medium supply path. The heating facility is provided with a plurality of heat collection zones in which a heat collection device that heats a heat medium by condensed sunlight is installed,
A plurality of heat collection zones and a plurality of heat medium passages are provided so that the liquid heat medium from one heat collection zone is supplied to one heat medium passage in the mixing container in the temperature fluctuation suppressing device. The heat medium supply facility according to claim 13, which is connected by a heat medium supply passage. A steam turbine;
A heat medium supply facility for supplying a heat medium for heating water in order to generate steam to be supplied to the steam turbine;
The heat medium supply facility is the heat medium supply facility according to any one of claims 13 to 20, and steam generated in a heat exchanger in the heat medium supply facility is supplied to a steam turbine. A solar thermal power generation facility configured as described above. A gas turbine,
An exhaust heat recovery boiler that uses exhaust heat from the gas turbine,
The solar thermal power generation facility according to claim 21, wherein steam generated in the exhaust heat recovery boiler is configured to be supplied to the steam turbine.

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