JP5820751B2 - Chimney-mounted power generator - Google Patents

Description

  The present invention relates to a chimney-installed power generator having a wind power generation unit that is installed in a gas exhaust path of a chimney for exhausting gas and generates power by receiving wind caused by the gas exhaust.

  In recent years, efforts for global warming and environmental issues have been emphasized, and expectations for energy-saving technologies are increasing year by year. As efforts to address such environmental problems, attention has been focused on effective use of new energy and unused energy, and there is great expectation as an alternative to conventional petroleum energy.

For example, according to the website of the Agency for Natural Resources and Energy, wind power generation using wind power is classified as one of the new energies, and is expected to be used in the future as clean energy that does not emit CO ₂ . In addition, unused energy is defined as a generic term for energy that has not been used so far, such as factory exhaust heat and sewage exhaust heat, and these are expected to be used effectively in the future.

  Various proposals have already been made as technologies for utilizing such new energy and unused energy. For example, a power generation device using waste heat / other heat discharged from a chimney and wind power is also proposed. (For example, see Patent Document 1). According to this proposal, a wind power generator that generates power using waste heat and wind power resulting from it is installed in the middle of the transfer pipe connecting the waste heat generation source and the chimney to effectively utilize unused energy. I am trying.

  According to the one disclosed in Patent Document 1, it is possible to effectively generate necessary power by eliminating the relationship with wind conditions, installation location, time, and seasonal factors, by moving away from a method that depends only on wind, which is a natural phenomenon. It is supposed to be possible. In other words, it is understood that the purpose is to stably generate wind power by effectively using wind power based on the waste heat generated by the waste heat generation source and the waste gas combustion device and the rising air flow caused by the waste heat. Is done.

  From the viewpoint of generating power using waste heat and wind power based on it, it is consistent with the effective use of unused energy and new energy, and is considered a useful proposal as a means of addressing environmental issues. .

JP 2003-90280 A JP 2011-85075 A

  However, the one disclosed in Patent Document 1 is difficult to perform efficient wind power generation, and the structure of the pipeline is complicated. That is, in Patent Document 1, the exhaust gas pipe is branched upstream of the generator so that the rising air is concentrated on the tip of the air blade, and the structure is complicated and the cost is high. It has become a thing. Moreover, since it is necessary to bend and branch the pipe in the middle, the contact pressure between the rising air and the inner wall of the pipe increases, resulting in a pressure loss of waste gas. When the pressure loss of the waste gas increases, the air flow rate and flow rate of the rising air decrease, which leads to a decrease in wind power generation efficiency.

  On the other hand, if a structure that does not branch the pipeline is selected, the rising air will pass through the vicinity of the center of the pipeline. In that case, a hub, shaft, generator, etc. disposed near the center of the pipeline Becomes an obstacle to the air flow, resulting in a pressure loss of waste gas, leading to a reduction in the efficiency of wind power generation.

  Therefore, Patent Document 2 is a chimney-installed power generation apparatus that is installed in a gas exhaust path of a chimney that exhausts gas and that generates power by receiving wind caused by gas exhaust, and has a cross section orthogonal to the gas exhaust direction. A stator in which a plurality of power generating coils are arranged near the periphery of the hollow through-hole having a substantially circular shape, and a hollow annular shape in which a cross section perpendicular to the gas exhaust direction has an outer circumferential circle and an inner circumferential circle and exhibits a substantially concentric circle A plurality of power generation magnets are arranged in the vicinity of the outer circumference of the rotor, arranged in the hollow through-hole portion of the stator and rotated around the direction along the gas exhaust direction, and at a downstream position of the rotor in the gas exhaust direction. And a plurality of blade members that convert wind force resulting from gas exhaust into a rotational force of the rotor from an outer circumference circle to an inner circumference circle. And having, those configured not substantially interfere with the gas exhaust at the rotation center side of the inner circumference is described.

  However, a part of the air outside the chimney guided by the outside air guide path escapes in the circumferential direction of the outside air guide path, and the effect of promoting gas exhaust along the direction of the gas exhaust path is reduced. There was a problem.

  The present invention has been made in view of the above, and an object of the present invention is to provide a chimney-mounted power generator capable of efficiently promoting gas exhaust along the direction of the gas exhaust path and obtaining high power generation efficiency. And

In order to solve the above-described problems and achieve the object, a chimney-installed power generation apparatus according to the present invention is installed in a gas exhaust path of a chimney that exhausts gas, and receives wind caused by the gas exhaust. A chimney-installed power generation apparatus having a wind power generation unit for generating power, and having an outside air guide path for guiding outside air from outside the gas exhaust path at a downstream position of the wind power generation unit in the gas exhaust direction, The outside air guide path has a substantially funnel-shaped outer hood member in which a cross section perpendicular to the gas exhaust direction at the lower position is formed larger than the cross section at the upper position, and a cross section orthogonal to the gas exhaust direction at the lower position is upper. And a substantially funnel-shaped inner hood member that is formed to be larger than the cross-section at the position and that is spaced from and disposed inside the outer hood member. And a plurality of rectifying plates for adjusting the flow of outside air in the gas exhaust direction are arranged in the circumferential direction in the outside air guide path, and the rectifying plates are provided from the outer hood member provided in the gap. The fin is erected toward the inner hood member .

A chimney-installed power generator according to the present invention is installed in a gas exhaust path of a chimney that exhausts gas, and has a wind power generator that generates power by receiving the wind caused by the gas exhaust. And an outside air guide path for guiding outside air from outside the gas exhaust path at a downstream position of the wind power generation unit in the gas exhaust direction, and the outside air guide path is orthogonal to the gas exhaust direction at a lower position. A substantially funnel-shaped outer hood member in which the cross section to be formed is larger than the cross section at the upper position, and a cross section perpendicular to the gas exhaust direction at the lower position is formed to be larger than the cross section at the upper position. And a substantially funnel-shaped inner hood member that is disposed facing and spaced from the inside of the member, and the flow of outside air in the gas exhaust direction. A plurality of rectifying plates are arranged in the circumferential direction in the outside air guide path, and the rectifying plates are fins provided in the gap and erected from the inner hood member toward the outer hood member. characterized in that there.

A chimney-installed power generator according to the present invention is installed in a gas exhaust path of a chimney that exhausts gas, and has a wind power generator that generates power by receiving the wind caused by the gas exhaust. And an outside air guide path for guiding outside air from outside the gas exhaust path at a downstream position of the wind power generation unit in the gas exhaust direction, and the outside air guide path is orthogonal to the gas exhaust direction at a lower position. A substantially funnel-shaped outer hood member in which the cross section to be formed is larger than the cross section at the upper position, and a cross section perpendicular to the gas exhaust direction at the lower position is formed to be larger than the cross section at the upper position. And a substantially funnel-shaped inner hood member that is disposed facing and spaced from the inside of the member, and the flow of outside air in the gas exhaust direction. A plurality of rectifying plates are arranged in the circumferential direction in the outside air guide path, and the rectifying plates are provided in the gaps, and fins standing from the outer hood member toward the inner hood member. Fins erected from the inner hood member toward the outer hood member are alternately provided in the circumferential direction .

  According to this invention, it has the outside air guide way which guides the outside air from the outside of the gas exhaust route at the downstream position of the wind power generation unit in the gas exhaust direction, and the outside air guide passage allows the flow of the outside air in the gas exhaust direction A plurality of rectifying plates arranged in the circumferential direction in the outside air guide path can be arranged to prevent a part of the flow of the outside air from escaping in the circumferential direction, thereby efficiently promoting gas exhaust along the gas exhaust path direction. It is possible to obtain high power generation efficiency in the wind power generation unit.

FIG. 1 is an external perspective view of the vicinity of the chimney tip portion showing a state in which the chimney-installed power generating device according to the embodiment of the present invention is disposed in the vicinity of the tip portion of the chimney. FIG. 2 is a side cross-sectional view in the vicinity of the chimney tip of the chimney-installed power generation apparatus shown in FIG. FIG. 3 is a diagram illustrating a configuration of the hood illustrated in FIG. 1. FIG. 4 is a diagram illustrating a configuration of Modification 1 of the hood illustrated in FIG. 1. FIG. 5 is a diagram showing a configuration of Modification 2 of the hood shown in FIG. FIG. 6 is a diagram illustrating a configuration of Modification 3 of the hood illustrated in FIG. 1. FIG. 7 is an enlarged cross-sectional view schematically showing the internal structure of the stator shown in FIG. FIG. 8 is a block diagram showing a connection state of the CCD camera, air purge nozzle and compressor, control valve, and control device in the stator shown in FIG. FIG. 9 is a flowchart for explaining a dust removal control processing procedure by the control device shown in FIG. FIG. 10 is an external perspective view of the rotor shown in FIG. FIG. 11 is a circuit configuration diagram for explaining a schematic configuration of an electric circuit of the chimney-mounted power generator shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

(overall structure)
FIG. 1 is an external perspective view of the vicinity of the tip of the chimney T showing the state in which the chimney-installed power generation device S is installed in the vicinity of the tip of the chimney T, and FIG. 2 is a side sectional view thereof. FIG. 3 is a diagram illustrating a configuration of the hood 2 provided in the chimney-installed power generation device S.

  The chimney T shown in FIGS. 1 and 2 is, for example, a chimney that is attached to a waste incineration facility (not shown), and discharges the incineration gas G from the waste incineration facility. A blower (not shown) is installed in the chimney T, and the incineration gas G is discharged from the chimney T by the blower.

  The chimney T has a hollow cylindrical shape with a substantially annular cross section, and the hollow interior forms a gas exhaust path. The incineration gas G from the waste incineration facility rises while passing through the gas exhaust path in the chimney T, and is discharged from the tip (exhaust port) of the chimney T to the upper atmosphere. In this embodiment, the chimney installation type power generation device S is installed at the tip of the chimney T, but of course, it may be installed in the middle of the chimney T.

  Here, the incineration gas G that rises in the gas exhaust path in the chimney T obtains blower rising energy that rises in the chimney T by the blower described above, but this incineration gas G is a high-temperature fluid of about 200 degrees, for example. Since it is a light fluid with respect to the surrounding atmosphere, the incineration gas G itself has buoyancy energy that becomes an ascending current of about 20 m / s. The blower ascending energy and buoyancy energy are approximately equal to 5 to 5, and the chimney-mounted power generator S mainly collects the newly generated buoyancy energy and converts it into electric power. It is. Then, by using the collected power as, for example, the power of the blower, it is not necessary to supply the power used by the blower from the outside, and an energy saving effect can be obtained. The gas exhaust path is a concept including the space inside the chimney T and its extension line, and is a path through which the gas rising along the extension direction (generally the vertical direction) of the chimney T flows.

  The required motor capacity of the blower described above is designed based on the required air volume for gas discharge, but the required air volume is calculated based on various factors such as the incineration capacity of the waste incineration facility and the chimney T diameter. Is done. For example, even if the design value of the required motor capacity calculated based on these factors is 80 kW, if the nearest higher-level model that can be selected is 90 kW, a capacity of 10 kW is left behind. In the past, 10 kW as the surplus capacity could not be used effectively and had to be discarded as energy. The chimney-mounted power generator S according to this embodiment is also intended to recover the energy corresponding to the extra 10 kW capacity.

  The chimney-mounted power generation device S includes a hood 2, a stator 4, a rotor 6, and a mounting structure 8 and is generally configured. The stator 4 and the rotor 6 constitute a wind power generation unit S1 described later of the chimney installation type power generation device S.

(Food composition)
The hood 2 is a component for configuring the outside air guide path 10 for guiding the outside air A from outside the chimney T (that is, outside the gas exhaust path) into the gas exhaust path, and is a substantially funnel-shaped outer hood. It has a member 2a and a substantially funnel-shaped inner hood member 2b and is generally configured. The outside air A from the outside of the gas exhaust path is, for example, air existing outside the chimney T.

  As shown in FIGS. 2 and 3, the outer hood member 2a and the inner hood member 2b are spaced from each other and face each other. The inner hood member 2b is disposed inside the outer hood member 2a. Both the outer hood member 2a and the inner hood member 2b have a circular cross section perpendicular to the gas exhaust direction, and have a substantially funnel shape in which the diameter gradually decreases toward the upper side. .

  The gap between the outer hood member 2a and the inner hood member 2b constitutes the outside air guide path 10, which is the end of the outside air guide path 10 having the largest diameter, and is substantially the chimney outer wall Ta or the stator. 4 is an outside air inlet 10a, which is the end having the smallest diameter, and is disposed substantially inside the chimney inner wall Tb and inside the stator 4. The end located downstream is the outside air outlet 10b. Between the outer hood member 2a and the inner hood member 2b, a plurality of rectifying plates 2c for adjusting the flow of the outside air A in the gas exhaust direction are arranged in the circumferential direction. By providing the current plate 2c, part of the flow of the outside air A can be prevented from escaping in the circumferential direction.

  The outside air introduction port 10a is formed to open over the entire circumference of the hood 2, is located outside the gas exhaust path, and introduces outside air A outside the chimney T. The outside air outlet 10b is formed over the entire circumference of the hood 2, is located in the gas exhaust path and downstream of the rotor 6, and guides the outside air A into the gas exhaust path. The passage from the outside air inlet 10a to the outside air outlet 10b is the outside air passage 10c. The outside air guide passage 10 is configured by including the outside air inlet 10a, the outside air outlet 10b, and the outside air passage 10c, and the outside air passage 10c. Are divided into a plurality in the gas exhaust direction by the respective rectifying plates 2c.

  The gap between the outer hood member 2a and the inner hood member 2b is wide on the radially outer side of the chimney T, and becomes narrower toward the radially inner side of the chimney T. As a result, the outside air passage 10c is also located in the chimney T. The passage area gradually narrows from the radially outer side toward the radially inner side. Therefore, the area of each outside air passage divided by each current plate c gradually narrows from the radially outer side of the chimney T toward the radially inner side. Further, the opening area of the outside air outlet 10b is smaller than the opening area of the outside air inlet 10a.

  The outside air passage 10c is formed so as to lead the outside air A introduced along a direction substantially orthogonal to the gas exhaust direction along a direction substantially parallel to the gas exhaust direction, and the outside air outlet 10b from the outside air inlet 10a. The outside air A is guided while being gradually deflected. Accordingly, the outside air A is easily introduced outside the chimney T, and a large amount of the outside air A is introduced from the outside air introduction port 10a. Then, the air is smoothly guided to the outside air outlet 10b without being affected by the passage resistance and pressure loss, and the occurrence of pressure loss and the like during the outside air guidance can be reduced. Without being escaped in the circumferential direction by the rectifying plate 2c, it is derived from the outside air outlet 10b with a velocity component in the gas exhaust direction.

  The outside air A is accelerated as the passage area of each outside air passage divided by the rectifying plate 2c gradually decreases, and when it is led out from the outside air outlet 10b, it is led out as an outside air flow having a high flow velocity in the gas exhaust direction. When the flow velocity in the gas exhaust direction of the external airflow is higher than the gas exhaust velocity, the external airflow effectively accelerates the gas exhaust, and as a result contributes to the improvement of power generation efficiency. The external airflow can further improve the smoothness of gas exhaust and effectively prevent the draft (updraft) inhibition resistance.

(Configuration of Hood Modification 1)
FIG. 4 is a diagram showing the configuration of Modification 1 of the hood 2, in which the upper part shows a plan view and the lower part shows a cross-sectional view passing through the gas exhaust center C. The hood 2 shown in FIG. 3 closes the gap between the outer hood member 2a and the inner hood member 2b with a rectifying plate 2c, which is a plate-like member extending in the radial direction, and suppresses the flow of the outside air A in the circumferential direction. However, the hood 102 of this modification 1 is replaced with the baffle plate 2c, and the baffle plate 102c which is a fin standing in the radial direction from the outer hood member 2a toward the inner hood member 2b, and the inner hood member A rectifying plate 102d, which is a fin standing in the radial direction from 2b toward the outer hood member 2a, is provided. Since the rectifying plates 102c and 102d are fin-shaped, the gap between the outer hood member 2a and the inner hood member 2b is not closed, but the outside air A is exhausted with a simple configuration as with the rectifying plate 2c. It is possible to guide effectively in the direction. In particular, the rectifying function can be increased by increasing the number of rectifying plates 102c and 102d provided in the circumferential direction. Only one of the rectifying plates 102c and 102d may be provided.

(Configuration of Hood Modification 2)
FIG. 5 is a diagram showing a configuration of Modification 2 of the hood 2, in which an upper part shows a plan view and a lower part shows a cross-sectional view passing through the gas exhaust center C. FIG. In the hood 112 of the second modification, the rectifying plates 102c and the rectifying plates 102d shown in FIG. 4 are alternately provided along the circumferential direction. Also according to the second modification, the outside air A can be effectively guided in the gas exhaust direction with a simple configuration.

(Configuration of Hood Modification 3)
FIG. 6 is a diagram showing a configuration of Modification 3 of the hood 2, and a sectional view passing through the gas exhaust center C. FIG. In the hood of the third modification, an outer hood member 2a ′ corresponding to the outer hood member 2a is provided on the upper outer side of the hood 2, and a rectification corresponding to the rectifying plate 2c is provided in the gap between the outer hood members 2a and 2a ′. A plate 2c 'is provided. That is, the hood composed of the outer hood member 2a, the inner hood member 2b, and the rectifying plate 2c, and the hood composed of the outer hood member 2a ′, the outer hood member 2a that functions as the inner hood member, and the rectifying plate 2c ′ are gas. Multiple stages are arranged in the exhaust direction. In other words, the outside air passage is arranged in multiple stages along the gas exhaust direction. By using such a multi-stage hood, the flow rate of the outside air A to be introduced can be increased and the strength of the hood can be increased. In FIG. 6, two multistage arrangements are used, but three or more multistage arrangements may be used. Moreover, it is good also as not only the baffle plate 2c but the fin-shaped baffle plate shown in FIG.4 and FIG.5.

(Configuration of wind power generation unit)
Returning to FIG. 2, the stator 4 is a member having a substantially circular cross section orthogonal to the gas exhaust direction, and has a hollow through portion 4 a and has an annular shape as a whole. FIG. 7 is an enlarged cross-sectional view showing an outline of the internal structure of the stator 4, in which a large number of power generating coils 12 are arranged in the vicinity of the periphery of the hollow through portion 4 a, and the power generating coils 12 are connected to each other. Not connected to storage battery or power transmission line.

  As shown in FIG. 7, the stator 4 has a substantially U-shaped cross section, and the concave portion 4 b faces the inside of the chimney T. The rotor body 6c of the rotor 6 is disposed in the recess 4b, and a plurality of power generation coils 12 are disposed in an annular shape above the recess 4b. A plurality of bearing magnets 14 are provided above and below the recess 4b, respectively. Are arranged in an annular shape. The power generation coil 12 is disposed so as to face the power generation magnet 16 disposed in the rotor body 6c. The power generation coil 12 and the power generation magnet 16 are separated from each other by a predetermined interval so as to generate power efficiently by electromagnetic induction.

  The bearing magnet 14 is a magnet for constituting a magnetic bearing for floatingly holding the rotor 6 from the stator 4. It arrange | positions in the up-and-down position so that it may respectively oppose to the stator 4 side and the rotor 6 side, and the opposing magnets repel each other with the same polarity, and the rotor 6 is levitated by the repulsive force.

  An electromagnetic lock 17 is disposed below the recess 4 b of the stator 4. A plurality of stop lock grooves 17b are formed in an annular shape at the lower portion of the rotor body 6c corresponding to the radial positions of the electromagnetic lock pins 17a projecting and retracting by the electromagnetic lock 17. When the rotor 6 is stopped, when the rotor 6 is sufficiently slow, the electromagnetic lock pin 17a is fitted into the stop lock groove 17b and stopped to lock the movement of the rotor 6.

  Further, a CCD camera 20 and an air purge nozzle 22 are also arranged in the recess 4 b of the stator 4. The CCD camera 20 is for monitoring the dust accumulation state in the vicinity of the power generation coil 12. The CCD camera 20 includes the vicinity of the power generation coil 12 in the photographing range, and displays the photographed image on, for example, a monitor screen installed in a management room (not shown). Since the manager in the management room can visually check the dust accumulation state in the vicinity of the power generation coil 12 by visually checking the monitor screen, it is necessary to work at a high place in order to confirm the dust accumulation state. Absent. Of course, a plurality of CCD cameras 20 may be arranged for monitoring not only the vicinity of the power generating coil 12 but also for monitoring the vicinity of the magnets 14 and 16 and for monitoring the vicinity of the blade (blade member) 24 of the rotor 6. As the CCD camera 20, it is preferable to use a rain-proof high-sensitivity high-quality camera.

  The air purge nozzle 22 is for removing dust accumulated in the vicinity of the power generation coil 12 and is capable of jetting high-pressure air from the tip of the nozzle. With the high-pressure air, the accumulated dust is scattered and removed, and the power generation efficiency lowered due to the dust accumulation is recovered. As with the CCD camera 20, the air purge nozzle 22 may be separately provided with a nozzle for removing dust accumulated not only near the power generating coil 12 but also near the magnets 14 and 16. In addition, the air purge nozzle 22 is appropriately disposed in the recess 4b of the stator 4 so as to be able to efficiently remove the accumulated dust in the plurality of power generating coils 12 arranged over the entire circumference of the stator 4. A plurality are arranged at intervals. The plurality of air purge nozzles 22 and the bebicons 22a installed in the storage case 21 are connected by pipes 23 so that the compressed air from the bebicons 22a is ejected from each air purge nozzle 22. The bebicon 22a is an abbreviation for a so-called baby compressor (small air compressor). It should be noted that the dust removal may be performed not only by the compressed high-pressure air jetting means but also by the air blowing means, the cleaning liquid jetting means or the like.

  The dust removing operation by the air purge nozzle 22 may be controlled by a control device 26 as shown in FIG. FIG. 8 is a block diagram showing a connection state of the CCD camera 20, the air purge nozzle 22, the bebicon 22a, the control valve 22b, and the control device 26.

  A control valve 22b is provided in the middle of the pipe 23 connecting the air purge nozzle 22 and the bebicon 22a, and this control valve 22b is normally closed. The control valve 22b is connected to the control device 26, and is configured to be able to automatically open the valve based on a control signal from the control device 26.

  Further, the control device 26 has an image processing means inside, and determines whether or not there is a predetermined amount or more of dust accumulation in the vicinity of the power generation coil 12 based on the image signal from the CCD camera 20. It is configured to be able to.

  FIG. 9 is a flowchart showing a dust removal control processing procedure by the control device 26. As shown in FIG. 9, when an image signal in the vicinity of the power generation coil 12 is input from the CCD camera 20 (step S101), the control device 26 executes predetermined image processing based on the image signal (step S101). Step S102). Thereafter, the control device 26 determines whether or not there is a predetermined amount or more of dust accumulation near the power generation coil 12 based on the image processing result (step S103). If it is determined that there is dust accumulation above a predetermined level (step S103, Yes), the control valve 22b in the middle of the pipe line connecting the bebicon 22a and the air purge nozzle 22 is opened for a certain time (step S104), and the air purge is performed. High pressure air is jetted from the nozzle 22 for a certain period of time to remove accumulated dust, and the process proceeds to step S103. On the other hand, when it is not determined that there is dust accumulation exceeding a predetermined value (No in step S103), the process proceeds to step S101, the next image signal is input, and the above-described processing is repeated.

  Note that the control device 26 does not necessarily have to determine the dust accumulation amount based on the photographed image from the CCD camera 20. For example, the control device 26 measures the elapsed time from the previous dust removal by the timer 26a shown in FIG. The dust removal operation may be performed by automatically opening the control valve 22b every month.

  In addition, the timer 26a does not measure the elapsed time since the previous dust removal, but measures the operation time of the chimney-installed power generation device S since the previous dust removal, and automatically controls every 500 hours of operation, for example. The dust removal operation may be performed by opening the valve 22b. In addition, the rotor rotational speed measuring means 26b shown in FIG. 8 measures the rotational speed of the rotor from the previous dust removal, and automatically opens the control valve 22b every 100,000 rotational speeds of the rotor to perform the dust removal operation. You may do it.

  Further, if the control device 26 has storage means (not shown), and calendar information and a schedule setting program are stored in the storage means, the schedule of the dust removal operation is programmed in advance based on the calendar. The dust removal operation (high-pressure air injection from the air purge nozzle 22) can be automatically performed according to the program settings.

  For example, from spring to summer (from March to August), the dust removal operation is automatically executed twice a week, Monday and Thursday, and from autumn to winter (from September to February) only on Wednesdays every week. It can be set so that the dust removal operation is automatically executed once. Further, if the schedule can be set in units of time, for example, during the daytime (from 6:00 am to 6:00 pm), the dust removal operation is automatically performed every three hours, and at night (from 6:00 pm (Until 6 am) can be set to automatically execute the dust removal operation every 6 hours.

  Of course, if this chimney-installed power generation device S has, for example, a manual dust removal button (not shown) arranged in the management room, the manual operation is performed by the administrator or the like pressing the manual button. It can also be executed. This is convenient because a manual dust removal operation can be executed at an appropriate timing after a photographed image (monitoring image) taken by the CCD camera 20 is visually confirmed and the dust accumulation state is confirmed. Of course, the automatic dust removal control using the control device 26 and the manual dust removal operation may be used in combination, but the control device 26 can be abolished by arranging a manual button, which contributes to further cost reduction. it can.

  Now, referring back to FIG. 2, the rotor 6 is a hollow annular member having a cross section orthogonal to the gas exhaust direction and having an outer circumferential circle 6 a and an inner circumferential circle 6 b and having a substantially concentric circle. As shown in FIG. 7, a large number of power generation magnets 16 are annularly arranged in the rotor body 6 c in the vicinity of the outer circumference circle 6 a, and each power generation magnet 16, each power generation coil 12, and Electric power is generated by generating the electromagnetic induction action.

  The rotor 6 includes the rotor main body 6c described above and a blade 24 coupled to the inner side (gas exhaust center C side) of the rotor main body 6c. The blade 24 is disposed in the hollow through-hole 4a of the stator 4, and the rotor 6 is driven by the repulsive action between the bearing magnet 14 disposed on the rotor body 6c and the bearing magnet 14 disposed on the stator 4 side. Has emerged from. The rotor 6 receives the wind force caused by gas exhaust in its floating state on the blade 24, and the influence of the frictional resistance by the bearing about the rotation axis substantially the same as the gas exhaust center C that is the central axis of the chimney T is the rotation center. It rotates smoothly with almost no impact.

  Here, FIG. 10 shows an external perspective view of the rotor 6. As shown in FIG. 10, the blade 24 is a member that receives gas exhaust on its blade surface (blade surface) 24 a and converts the wind force into the rotational force of the rotor 6. A large number of blades 24 are arranged radially from the outer circumference circle 6a to the inner circumference circle 6b, but neither the blade 24 nor other members are arranged on the inner side (rotation center side) of the inner circumference circle 6b. In other words, in the vicinity of the rotating shaft, the gas exhaust is not substantially hindered. Therefore, there is almost no generation of draft inhibition resistance or pressure loss with respect to the gas exhaust, and the gas exhaust is performed smoothly, contributing to the improvement of power generation efficiency. Furthermore, since the gas exhaust is further accelerated by the outside air A led to the downstream position of the rotor 6, the power generation efficiency is further improved.

  The blade 24 is made of a carbon material. When the blade 24 is made of a lightweight and highly rigid carbon material, it prevents corrosion due to gas exhaust, ensures heat resistance against high-temperature gas, and improves power generation efficiency and responsiveness due to weight reduction (especially the initial power Reduction). It is preferable to apply a carbon composite material to the blade 24, but it is more preferable to use an autoclave carbon material. Here, the autoclave carbon material is a molding material obtained by laminating carbon fiber cloth and performing high compression molding in an autoclave molding machine, and is particularly a material suitable for forming a curved surface shape by carbon fibers.

  Since the stator 4 and the rotor 6 described above generate power using wind power generated by gas exhausted from the chimney T, the unused energy that has not been used in the past, in particular, buoyancy energy caused by the updraft is effectively used. It is excellent in environmental suitability and can contribute to energy saving. The wind power generation is performed by the action of the power generation magnet 12 disposed in the stator 4 and the power generation coil 12 disposed in the stator 4, and the rotor 6 is disposed in the hollow through-hole 4 a of the stator 4. Since the rotor 6 is rotated by gas exhaust, the inertia moment of the rotor can be made smaller than that of the type in which the rotor is disposed outside (outer peripheral side) of the stator. Therefore, the initial power at the start of rotation can be reduced, and power can be generated efficiently even when the wind power is small. Since the inertia moment of the rotor 6 is small, the responsiveness (followability) of the rotor rotation to the wind force change can also be improved.

  In addition, since the rotor 6 is configured so as not to substantially hinder gas exhaust on the rotation center side of the inner circumferential circle 6b, gas exhaust in the vicinity of the rotation center of the rotor 6 can be performed smoothly. Therefore, efficient wind power generation can be performed with almost no pressure loss of gas exhaust or draft inhibition resistance (air resistance that becomes an obstacle to draft (updraft)) in the vicinity of the rotor rotation center. Since members such as a generator and a hub are not arranged in the vicinity of the rotation center, there is no need to branch the exhaust pipe in order to avoid them, and the structure in the chimney is not complicated.

  Note that the fact that gas exhaust is not substantially hindered on the rotation center side of the inner peripheral circle 6b means that no member that inhibits gas exhaust is disposed on the rotation center side of the inner peripheral circle 6b. For example, the case where the rotation center side of the inner circumference circle 6b is hollow and the rotor 6 is ring-shaped is included.

  FIG. 11 is a circuit configuration diagram for explaining a schematic configuration of the electric circuit 30 of the chimney-mounted power generator S. The electric circuit 30 also functions as a brake facility in the chimney installation type power generator S. Since the rotation of the rotor 6 is stopped based on the function of the brake equipment, the function will be described.

  The wind power generation unit of the chimney installation type power generation device S includes a rotor 6 and a stator 4. The power generation coil 12 on the stator 4 side is connected to an electric circuit 30 shown in FIG. In the electric circuit 30, the first circuit 30 a, the second circuit 30 b, the third circuit 30 c, and the fourth circuit 30 d are connected in parallel, and the fourth circuit 30 d is connected to the power transmission unit 31. The first circuit 30a includes a first amplifier TR1, the second circuit 30b includes a resistor R and a second amplifier TR2, the third circuit 30c includes a capacitor Q, and the fourth circuit 30d includes a thyristor Y.

  In a normal power generation state, the power generated in the wind power generation unit S1 is sent from the thyristor Y to the power transmission unit 31 via the power generation path. Then, electric power is consumed or stored by an electric load unit (not shown) such as a blower (not shown) connected to the power transmission unit 31.

  On the other hand, in order to decelerate the rotation of the rotor 6, the electric circuit 30 is caused to function as a brake facility, and there are the following two decelerating methods. One is a method (so-called dynamic brake) in which electric power from the wind power generation unit S1 is sent to the resistor R via the first brake path, and electric power is consumed by the resistor R to apply the brake. The other one is a method in which the forward power from the power transmission unit 31 is sent to the wind power generation unit S1 via the second brake path, and the power generation is stopped by the forward power.

  When the rotor 6 is stopped, any one of the above-described deceleration methods, for example, the second amplifier TR2 is opened and power is consumed by the resistor R to slow down the rotation of the rotor 6 so that the rotor 6 is stopped at a low speed. After reaching a state, for example, about 1% of the steady speed, the above-described electromagnetic lock pin 17a is fitted into the stop lock groove 17b and stopped to lock the movement of the rotor 6. Maintenance of the chimney installation type power generator S and the chimney T can be easily performed by the lock of the rotor 6. The stator 4 and the rotor 6 function as a synchronous generator (the number of poles P), and the speed V of the rotor 6 can be obtained by detecting the generator frequency f output from the synchronous generator to the electric circuit 30. it can. Specifically, in the case of a three-phase output, the speed V can be obtained as V = 120 · f / P. Of course, the speed of the rotor 6 may be obtained directly using a speed sensor or the like.

(Mounting structure)
The attachment structure 8 is a structure for attaching the chimney-installed power generation device S to the tip portion of the chimney T, and generally includes a skirt member 8a and a band member 8b as shown in FIGS. Composed. The attachment structure 8 may be included in the chimney installation type power generation device S, or may be configured as a separate body from the chimney installation type power generation device S.

  The mounting structure 8 can easily and reliably mount and fix the chimney-mounted power generation device S at a high point, ie, the tip of the chimney T, thereby shortening the time required for working at the high point and ensuring the safety of workers. In addition, the risk of the chimney-mounted power generation device S falling is reduced, and the reliability of the device is improved.

  The skirt member 8 a is a cylindrical or substantially funnel-shaped member that extends downward, and is connected to the stator 4 so as to extend downward. The connection between the skirt member 8a and the stator 4 is performed by, for example, welding or a firm fixation with bolts and nuts. The skirt member 8a is installed so as to cover the tip of the chimney T, and the maximum inner diameter at the lowest position is formed larger than the outer diameter at the tip of the chimney T. That is, the maximum inner diameter of the skirt member 8a needs to be larger than the outer shape of the tip portion of the various chimneys to be applied, although it has the largest tip portion outer diameter. In other words, if the chimney has a tip outer diameter smaller than the maximum inner diameter of the skirt member 8a, the mounting structure can be applied to chimneys having various outer shapes. The skirt member 8a is preferably made of a ductile metal material such as copper, brass, zinc, galvanized steel plate (tin), for example.

  The band member 8b is a member for securely and firmly fixing the chimney-mounted power generation device S to the tip of the chimney T by covering the tip of the chimney T with the skirt member 8a and then winding it around the outer periphery of the skirt member 8a. is there. The band member 8b needs to be wound and tightened at a position below the tip of the chimney T. Then, the skirt member 8a is deformed by tightening the band member 8b, and the skirt member 8a is attached to the tip of the chimney T with sufficient safety. The tightening operation of the band member 8b does not need to be performed while the worker goes around the chimney T, and can be performed while staying at one place near the fastener 8c portion of the band member 8b. Therefore, compared with the case where the chimney-installed power generation device S is fixed over the entire circumference of the chimney T by bolts, nuts, rivets, welding or the like, the work time can be shortened. Further, since the movement of workers is small, work safety can be improved.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these, A various deformation | transformation and change are possible within the range of the summary.

A Outside air C Gas exhaust center G Gas (incineration gas)
Q Capacitor R Resistor S Chimney installation type power generation device S1 Wind power generation part T Chimney Ta Chimney outer wall Tb Chimney inner wall TR1 First amplifier TR2 Second amplifier Y Thyristor 2, 102, 112 Hood 2a, 2a 'Outer hood member 2b Inner hood member 2c, 2c ', 102c, 102d Rectifying plate 4 Stator 4a Hollow through portion 4b Recessed portion 6 Rotor 6a Outer circle 6b Inner circle 6c Rotor body 8 Mounting structure 8a Skirt member 8b Band member 8c Fastener 10 Outside air guide path 10a Outside air inlet 10b Outside air outlet 10c Outside air passage 12 Power generation coil 14 Bearing magnet 16 Power generation magnet 17 Electromagnetic lock 17a Electromagnetic lock pin 17b Stop lock groove 20 CCD camera 22 Air purge nozzle 21 Storage case 22a Babycon (small air compressor)
22b Control valve 23 Piping 24 Blade (blade member)
24a Blade surface (wing surface)
26 control device 26a timer 26b rotor rotation speed measuring means 30 electric circuit 30a first circuit 30b second circuit 30c third circuit 30d fourth circuit 31 power transmission unit (electric load unit)

Claims (3)

A chimney-installed power generator having a wind power generator installed in a gas exhaust path of a chimney for exhausting gas and generating power by receiving wind caused by the gas exhaust,
An outside air guide path for guiding outside air from outside the gas exhaust path at a position downstream of the wind power generation unit in the gas exhaust direction;
The outside air guideway is
A substantially funnel-shaped outer hood member having a cross section perpendicular to the gas exhaust direction at the lower position formed larger than the cross section at the upper position;
A cross section perpendicular to the gas exhaust direction at the lower position is formed larger than the cross section at the upper position, and a substantially funnel-shaped inner hood member that is disposed opposite to the inner side of the outer hood member. And a plurality of rectifying plates for adjusting the flow of outside air in the gas exhaust direction are arranged in the circumferential direction in the outside air guide path,
The chimney-installed power generator according to claim 1, wherein the rectifying plate is a fin that is provided in the gap and is erected from the outer hood member toward the inner hood member .   A chimney-installed power generator having a wind power generator installed in a gas exhaust path of a chimney for exhausting gas and generating power by receiving wind caused by the gas exhaust,
  An outside air guide path for guiding outside air from outside the gas exhaust path at a position downstream of the wind power generation unit in the gas exhaust direction;
  The outside air guideway is
  A substantially funnel-shaped outer hood member having a cross section perpendicular to the gas exhaust direction at the lower position formed larger than the cross section at the upper position;
  A cross section perpendicular to the gas exhaust direction at the lower position is formed larger than the cross section at the upper position, and a substantially funnel-shaped inner hood member that is disposed opposite to the inner side of the outer hood member. And a plurality of rectifying plates for adjusting the flow of outside air in the gas exhaust direction are arranged in the circumferential direction in the outside air guide path,
  The chimney-installed power generator according to claim 1, wherein the current plate is a fin that is provided in the gap and is erected from the inner hood member toward the outer hood member.   A chimney-installed power generator having a wind power generator installed in a gas exhaust path of a chimney for exhausting gas and generating power by receiving wind caused by the gas exhaust,
  An outside air guide path for guiding outside air from outside the gas exhaust path at a position downstream of the wind power generation unit in the gas exhaust direction;
  The outside air guideway is
  A substantially funnel-shaped outer hood member having a cross section perpendicular to the gas exhaust direction at the lower position formed larger than the cross section at the upper position;
  A cross section perpendicular to the gas exhaust direction at the lower position is formed larger than the cross section at the upper position, and a substantially funnel-shaped inner hood member that is disposed opposite to the inner side of the outer hood member. And a plurality of rectifying plates for adjusting the flow of outside air in the gas exhaust direction are arranged in the circumferential direction in the outside air guide path,
  The rectifying plate includes a fin that is provided in the gap and is erected from the outer hood member toward the inner hood member, and a fin that is erected from the inner hood member toward the outer hood member. A chimney-installed power generator characterized by being alternately provided in the direction.

Images