JP2006125261A - Stationary engine power generation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the cooling efficiency by installing a cooling water main pipe in a radiator unit, and using a branched pipe with smaller diameter than the cooling water main pipe from the main pipe to each radiator in a stationary engine power generation system provided with a plurality of the radiators. <P>SOLUTION: The package type stationary engine power generation system is provided with an air starting engine, a power generator driven by the engine, a control unit to control the operation of the system, a fuel tank of the engine, a pneumatic starting system for starting the engine, stores these in one package, and the radiator unit R unitized separately outside the package, and provided with a plurality of the radiators and radiator fans for engine cooling. In this case, the main pipe 65a of a cooling water circuit is installed in the radiator unit R, and the branched pipes 57a to 57f to distribute the cooling water from the main pipe 65a into each radiator 55a to 55l with smaller diameters than the main pipe 65a are installed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stationary engine power generation device, and more particularly to a device configuration for improving cooling efficiency in a radiator.

2. Description of the Related Art Conventionally, a stationary engine power generation apparatus has been known in which various functional elements necessary for power generation equipment such as an engine, a generator driven by the engine, and a radiator for cooling the engine are accommodated in a single package. (For example, refer to Patent Document 1).
In the technique disclosed in Patent Document 1, it is easy to add a common module for cooling an engine including a radiator or the like according to the output of the engine.
And when it was set as the structure provided with the several radiator, it was conventionally set as piping structure as FIG. 9 shows. That is, the plurality of radiators 91, 92, 93 are connected in parallel by the cooling water pipes 94, 95, 96, 97 having the same diameter.
Japanese Patent Application Laid-Open No. 2004-21554

However, in the case of the piping configuration as shown in FIG. 9, since the cooling water pipes 94, 95, 96, and 97 have the same diameter, the amount of cooling water to the radiator 91 located closest to the engine 100 is reduced by the radiator 92. Compared to 93, it was relatively large.
In this case, the amount of cooling water in each of the radiators 91, 92, 93 is not uniform, and there is a problem that the cooling efficiency of the radiators 91, 92, 93 as a whole deteriorates.
Therefore, in the present invention, in a stationary engine power generator having a plurality of radiators, by adopting a new piping configuration related to cooling water, the uneven distribution of the cooling water amount of each radiator is reduced and the cooling efficiency of the radiator unit is improved. We propose technology to plan.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, as described in claim 1, an air start engine, a generator driven by the engine, a control unit for controlling the operation of the apparatus, a fuel tank of the engine, and the engine are started. The air-type starting system is housed in one package, and is a package-type stationary type having a radiator unit including a plurality of radiators for cooling the engine and a radiator fan. In the engine power generator, a main pipe of a cooling water circuit is provided in the radiator unit, and a branch pipe having a smaller diameter than the main pipe is provided to distribute the cooling water from the main pipe to each radiator.

  Further, as described in claim 2, in the stationary engine power generator according to claim 1, a fan chamber that houses the radiator fan is provided in the radiator unit R.

  According to a third aspect of the present invention, the radiator is configured to be removable from the outside of a package that covers the radiator unit.

  According to a fourth aspect of the present invention, the plurality of radiators circulate in a radiator for cooling coolant that circulates in a water jacket of the engine, and in a supercharger air cooler and a lubricating oil cooler of the engine. The number of radiators allocated to the radiator for cooling the cooling water and allocated for the water jacket or for the supercharger air cooler and the lubricating oil cooler is configured to be changeable.

  As effects of the present invention, the following effects can be obtained.

  In other words, according to the first aspect of the present invention, the cooling efficiency of the entire radiator unit can be improved.

  Further, in the invention according to claim 2, it is possible to perform a soundproof design against noise generated by the radiator fan, and it is possible to widen the degree of freedom.

  In the invention according to claim 3, the installation work and maintenance work of the radiator can be easily performed from the outside of the radiator unit package.

  In the invention according to claim 4, the number of radiators can be changed according to the cooling capacity required for each of the water jacket, the supercharger air cooler, and the lubricating oil cooler.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following description, the front side shown in FIG. 1 is the steering side in the stationary engine power generator of the present invention, the back side shown in FIG. 2 is the non-steering side, and the left-right direction is the front view. . Further, the left-right direction in FIG. 1 is defined as the width direction, and the direction perpendicular to the paper surface is defined as the depth direction.

  First, the overall configuration of a stationary engine power generator 1 (hereinafter simply referred to as “engine power generator 1”) of the present invention will be described with reference to FIGS. The engine power generator 1 is configured in a package type in which various devices are housed in a power unit package 2 having a rectangular parallelepiped shape together with a base 3. The power unit package 2 is divided into two upper and lower chambers by a partition wall 4 provided in the horizontal direction, and the lower side is an engine room 5. On the other hand, the upper side is divided into two chambers by a partition wall 6, the left side is an exhaust silencer chamber 7, and the right side is a ventilation chamber 8.

  In the engine room 5, a six-cylinder water-cooled engine (hereinafter referred to as “engine 9”), and a generator 10 that is coupled to a crankshaft C (only the center line is shown) of the engine 9 and is driven to rotate. Is installed. The engine 9 and the generator 10 are supported in a vibration-proof manner on a common platform 11 placed on the base 3 via a vibration-proof rubber or the like. One end of an exhaust pipe 20 penetrating the partition wall 4 in the vertical direction is connected to the exhaust port of the engine 9. The other end of the exhaust pipe 20 is connected to an exhaust silencer 30 housed in the exhaust silencer chamber 7. It is connected.

  Similarly, in the engine room 5, a control unit 14 configured by a generator panel 12 and an auxiliary machine panel 13 to control the operation of the engine power generator 1, a fuel tank 15 of the engine 9, a lubricating oil system and cooling of the engine 9. Various devices constituting the water system are respectively disposed and housed in the power unit package 2. In addition, an air inlet is formed in a part of the partition wall 4 that partitions the engine room 5 and the ventilation chamber 8, and ventilation fans 81 and 81 are fixed so as to cover the air inlet. When the ventilation fans 81 and 81 are driven, air (outside air) is taken into the ventilation chamber 8 through the intake duct 2a attached to the intake ports formed on the front side and the back side of the power unit package 2, and the engine Guided into the chamber 5. A soundproof split 82 is mounted on the partition wall 4 and stored in the ventilation chamber 8.

  In the engine power generator 1 of the present invention, the engine 9 is of an air start type. For the air start engine 9, an air start system including an air compressor 16, an air dryer 17, and an air tank 18 is provided. In this air starting system, the compressed air compressed by the air compressor 16 is dehumidified by the air dryer 17 and sent into the air tank 18 for filling. The compressed air in the air tank 18 drives an air motor (air starter) of the engine 9. In this configuration, an air starting system including an air compressor 16, an air dryer 17, and an air tank 18 is housed in the power unit package 2.

  Thus, by storing the air start system of the engine 9 in the power unit package 2, the air start system is separated into a separate unit and installed outside the power unit package 2. A single unit can also be realized when using an air start engine. Thereby, simplification of the local construction in the installation site of the engine power generator 1 and space saving can be achieved.

  Further, as described above, the engine 9, the generator 10, the control unit 14, the fuel tank 15, and various devices constituting the lubricating oil system and the cooling water system of the engine 9 are disposed and stored in the power unit package 2, respectively. However, in the engine power generation device 1 of the present invention, the cooling device including the radiator 55 for cooling the engine 9 and the radiator fan 56 is a separate unit outside the power unit package 2. It has become. That is, the radiator 55, the radiator fan 56, and the like are housed in a radiator unit package 52 that has a rectangular parallelepiped shape together with the base 53 outside the power unit package 2, so that a cooling device constituted by these is configured in a package type. Separate unit. Specifically, the power unit package 2 and the radiator unit package 52 can be separated in the width direction at the position of the arrow X in FIG.

  The radiator 55 is disposed along the front side surface and the back side surface in the radiator unit package 52, and extends from the power unit package 2 between the front side radiator 55 and the back side radiator 55. A cooling water circuit 57 that communicates with the cooling water circuit and communicates with each radiator 55 is provided. A radiator fan 56 is disposed above these radiators 55.

  Further, the radiator unit package 52 constituting the cooling device is configured so that the depth direction dimension thereof is substantially the same as the depth dimension of the power unit package 2, and as shown in FIGS. 1 to 3, the radiator unit package 52 is a power unit. When arranged adjacent to the package 2, the power unit package 2 and the radiator unit package 52 form a rectangular parallelepiped shape that is integral in appearance. In other words, the radiator unit package 52 that constitutes the cooling device does not need to be disposed integrally with the power unit package 2 and can be installed separately from the power unit package 2.

In this way, the cooling device for cooling the engine 9 is formed as a separate unit outside the power unit package 2, that is, the radiator unit R is used, so that the radiator 55 and the radiator fan 56 constituting the cooling device are one power unit package. The expansion of the dimension in the width direction (longitudinal direction) of the power unit package 2 (and the base 3) due to being housed in 2 can be avoided.
As a result, the degree of freedom at the time of installing the engine power generation device 1 is improved, the minimum space required for installing the engine power generation device 1 is reduced, and it is possible to flexibly deal with securing the space, and the engine power generation The transportability of the apparatus 1 can be improved.

Next, the structure regarding the radiator unit R is demonstrated.
As shown in FIG. 4, the main pipes 65a and 66a of the cooling water circuit are provided in the radiator unit R, and the cooling water is distributed from the main pipes 65a and 66a to the radiators 55a to 55l, more than the main pipes 65a and 66a. Small-diameter branch pipes 57a to 57l are provided.
4 and 5, the plurality of radiators 55a to 55l include radiators 55a to 55f for cooling the cooling water circulating in the turbocharger air cooler 41 and the lubricating oil cooler 42 of the engine, The number of radiators allocated for the water jacket or for the supercharger air cooler and the lubricating oil cooler can be changed while being allocated to the radiators 55g to 55l for cooling the coolant circulating in the water jacket 9a of the engine. It is configured.

More specifically, as shown in FIG. 4, the cooling water is circulated and supplied to the supercharger air cooler 41, the lubricating oil cooler 42, and the water jacket 9 a of the engine 9.
Moreover, about the supercharger air cooler 41 and the lubricating oil cooler 42, cooling water is supplied from the return main piping 65B, and the cooling water after heat absorption is sent out to the main piping 65A.
For the water jacket 9a, cooling water is supplied from the return main pipe 66B, and the cooling water after heat absorption is sent to the main pipe 66A.

In the radiator unit R, four pipes U1 to U4 constituting a U-shaped path are provided, and both ends of the two pipes U1 and U3 are respectively connected to the main pipes 65A and 66A. Both ends of the remaining two pipes U2 and U4 are connected to the return main pipes 65B and 66B, respectively.
Each of the pipes U1 to U4 is provided with flanges (connection portions) f11 to f18, f21 to f28, f31 to f38, and f41 to f48.
In addition, connecting portions of branch pipes 57a to 57l described later are arranged between the flanges.
Further, in the pipes U1 and U3, the flanges f15 and f35 are provided with closing plates (flange without a pipe hole) 75a and 75a, respectively, whereby the main pipes separated from each other in the pipes U1 and U3. 65a and 66a are formed.
Similarly, in the pipes U2 and U4, the flanges f25 and f45 are provided with closing plates (opening and closing members such as valves) 75b and 75b, respectively, so that the pipes U2 and U4 are separated from each other. Return main pipes 65b and 66b are formed.

In the pipes U1 and U2, the main pipe 65a and the return main pipe 65b are connected in parallel by branch pipes 57a to 57c having a diameter smaller than that of the main pipe 65a, and the radiators 55a are connected to the branch pipes 57a to 57c. Cooling water is sent to ~ 55c.
Similarly, in the pipes U1 and U2, the main pipe 66a and the return main pipe 66b are connected in parallel by branch pipes 57g to 57i having a smaller diameter than the main pipe 66a, and the radiators are connected to the branch pipes 57g to 57i. Cooling water is sent to 55g to 55i.

The above configuration is the same for the pipes U3 and U4.
That is, in the pipes U3 and U4, the main pipe 65a and the return main pipe 65b are connected in parallel by branch pipes 57d to 57f having a diameter smaller than that of the main pipe 65a, and from each branch pipe 57d to 57f to each radiator 55d. Cooling water is sent to -55f.
Similarly, in the pipes U3 and U4, the main pipe 66a and the return main pipe 66b are connected in parallel by branch pipes 57j to 57l having a smaller diameter than the main pipe 66a, and the radiators are connected to the branch pipes 57j to 57l. Cooling water is sent to 55j to 55l.

And in the above structure, the cooling water which absorbed heat with the said supercharger air cooler 41 and the lubricating oil cooler 42 is sent from main piping 65a * 65a to each radiator 55a-55f. Cooling water that has absorbed heat by the water jacket 9a is sent from the main pipes 66a and 66a to the radiators 55g to 55l.
In the above-described cooling water branching configuration, since the diameters of the branch pipes 57a to 57f are smaller than the main pipes 65a and 66a, substantially the same amount of cooling water is supplied to each radiator. Become. That is, the amount of cooling water to the water jacket 9a, the supercharger air cooler 41 and the lubricant cooler 42 closest to the radiators 55a, 55d, 55g, and 55j can be suppressed to a flow rate determined by the diameter of the branch pipes 57a and 57d. Therefore, the amount of cooling water to other radiators on the downstream side of this can be ensured, and the amount of cooling water for all the radiators can be made uniform.
In this way, it is possible to make uniform the heat radiation action in the radiators 55a to 55f connected to the main pipes 65a and 65a and the radiators 55g to 55l connected to the main pipes 66a and 66a. And the cooling efficiency as the whole radiator unit R can be improved.

FIG. 5 shows the flow of cooling water in the case where the above-described piping configuration is adopted in the radiator unit R including 12 radiators 55a to 55l. The radiators 55a to 55f include supercharger air coolers. 41, the cooling water that has cooled the lubricating oil cooler 42 is supplied from the main pipe 65A (65a), and the cooling water that has cooled the water jacket 9a is supplied from the main pipe 66A (66a) to the radiators 55g to 55l.
In the figure, 59a and 59b are water-water heat exchangers, respectively, which absorb the engine waste heat from cooling water to form hot water for hot water supply.

Moreover, in FIG. 5, among the 12 radiators 55a to 55l, 6 radiators are allocated for the turbocharger air cooler 41 and the lubricating oil cooler 42, and 6 radiators are allocated for the water jacket 9a. The same number of radiators is assigned to each. In each radiator, heat is exchanged between the cooling water and the air by the cooling air from the radiator fans 56a, 56b, and 56c.
In addition, this allocation can be changed according to the required cooling capacity. For example, as shown in FIG. 6, nine radiators 55a to 55f, 55h, 55i, and 55l are allocated for the supercharger air cooler 41 and the lubricating oil cooler 42, and three radiators 55g, 55j, and 55k are used for the water jacket 9a. May be assigned.

In this case, in the configuration example shown in FIG. 4, the closing plates 75a and 75b that have been inserted into the flanges f15, f25, f35, and f45 can be inserted into the flanges f17, f27, f36, and f46.
It should be noted that the present invention is not limited to such a combination of a flange and a closing plate. For example, it is possible to change the assignment by reconnecting the branch pipe to the main pipe, and opening and closing the flange by providing a valve. It is good also as a structure.

As described above, by closing a single opening / closing member of the piping U1 at a plurality of locations of the series of piping U1 with a flange (closing plate 75a) without a piping hole, each piping U1 is cooled by the water jacket 9a. The first main pipe 65a to which the subsequent cooling water is supplied, and the supercharger air cooler 41 and the lubricating oil cooler 42 are partitioned into a second main pipe 66a to which the cooling water after cooling is supplied (see FIG. 4). ).
Further, in each main pipe 65a and 66a, branch pipes 57a to 57c and 57g to 57i are connected between locations (flanges f11 to f18) where the opening / closing member (closing plate 75a) is provided.
Further, a radiator to which cooling water is supplied from the branch pipes 57a to 57c connected to the section that becomes the first main pipe 65a is allocated for the water jacket 9a, and the section that becomes the second main pipe 66a. The radiator to which the cooling water is supplied from the branch pipes 57g to 57i connected to is assigned for the supercharger air cooler 41 and the lubricating oil cooler 42.
And by changing the location of the opening and closing member to be closed, the number of radiators allocated for the water jacket 9a and the number of radiators allocated for the supercharger air cooler 41 and the lubricating oil cooler 42 are changed. Yes.

Next, the structure regarding a radiator and a radiator fan is demonstrated.
As shown in FIGS. 7 and 8, the radiators 55p, 55q, 55r, and 55s are installed at positions corresponding to the openings 52a and 52b provided on the wall surface of the radiator unit package 52 that covers the radiator unit R. .
Further, in the radiator unit package 52, a radiator 55q is disposed outside the radiator 55p, and the two radiators 55p and 55q are disposed so as to overlap each other in a front view. The outer radiator 55q is provided with a duct 54s at a position between the radiators 55p and 55q, and the outside air taken in from the outside of the package by the rotation of the radiator fan 56a and guided through the radiator 55q is guided to the duct 54s. And sprayed to the radiator 55p.
When the rotational direction of the radiator fan 56a is reversed, the outside air that has passed through the radiator 55p is guided to the duct 54s, blown to the radiator 55q, and discharged outside the package.

The radiator unit package 52 is provided with inner radiator fixing portions 52f and 52f. The mounting members provided on the radiator 55r disposed on the inner side of the inner radiator fixing portions 52f and 52f are bolts or the like. It is attached.
Similarly, outer radiator fixing portions 52c and 52c are provided in the radiator unit package 52, and a radiator 55s disposed outside is attached to the outer radiator fixing portions 52c and 52c.
Further, as shown in FIGS. 7 and 8, the opening 52a has a tool insertion space or the like so that the radiator 55s can be attached and removed from the outside of the radiator unit package 52. It has a configuration that ensures. Depending on the configuration of the outer radiator fixing portions 52c and 52c, a one-touch fitting member is provided on each of the fixing portion on the opening 52a side and the fixing portion on the radiator 55s side, and the radiator 55s is inserted to be fixed with one touch. It is good also as a structure to be.
Similarly, the attachment work and the removal work of the radiator 55r arranged on the inner side can be performed from the outside of the radiator unit package 52.

As described above, each radiator is configured to be detachable from the outside of the radiator unit package 52 that encloses the radiator unit R, and according to this, installation work and maintenance work of the radiator can be performed outside the radiator unit package 52. Can be easily done.
Further, as shown in FIG. 8, in this configuration, the radiator unit package 52 is partitioned by partition plates 52f and 52f, and enters the package from the left-right direction (arrow M direction or arrow N direction) of the package. In particular, this is particularly effective in a configuration in which the partition plates 52f and 52f must be removed.

7 and 8, the radiator unit package 52 of the radiator unit R is provided with a fan chamber 77 for housing the radiator fans 56a, 56b, and 56c.
The fan chamber 77 communicates with a lower space 78 in which the radiators 55 s and 55 r are disposed, and sucks outside air that has passed through the radiator from below and discharges it from an upper vent 79.
In addition, soundproofing materials 76 and 76 are attached to the inner side surface of the exterior 52d of the radiator unit package 52 that constitutes the fan chamber 77, so that the transmitted sound to the outside such as the rotation sound of the radiator fan 56a is transmitted. Reduced and has a structure excellent in soundproofing.
Further, as shown in FIG. 8, the soundproofing effect is further improved by adopting a structure in which soundproofing soundproof walls 75a and 75b are interposed between the radiator fans 56a, 56b and 56c. .

  As described above, by providing the fan chamber 77 for storing the radiator fans 56a, 56b, and 56c, it is possible to perform a soundproof design against the noise generated by the radiator fan, and widen the degree of freedom. be able to.

The front view of a stationary engine power generator. Similarly rear view. FIG. The figure shown about the structure which branches piping from main piping to each radiator. The figure shown about the flow of the cooling water supplied to a radiator. The figure shown about the flow of the cooling water at the time of changing the allocation of a radiator. The figure shown about the apparatus structure in a radiator unit. The figure shown about attachment / detachment of a radiator. The figure shown about the structure of the conventional cooling water piping.

Explanation of symbols

R Radiator unit 9a Water jacket 41 Supercharger air cooler 42 Lubricating oil cooler 55 Radiator 65 Main piping 66 Main piping

Claims (4)

An air start engine, a generator driven by the engine, a control unit for controlling the operation of the apparatus, a fuel tank for the engine, and an air start system for starting the engine. A package type stationary engine power generator having a radiator unit that is housed in one package and is provided as a separate unit outside the package, the radiator unit including a plurality of radiators and a radiator fan for cooling the engine,
A stationary engine power generator, wherein a main pipe of a cooling water circuit is provided in the radiator unit, and a branch pipe having a smaller diameter than the main pipe is provided to distribute the cooling water from the main pipe to each radiator. The stationary engine power generator according to claim 1,
A stationary engine power generator, wherein a fan chamber for housing the radiator fan is provided in the radiator unit. The stationary engine power generator according to claim 1 or 2,
A stationary engine power generator, wherein the radiator is configured to be removable from the outside of a package that covers the radiator unit. The stationary engine power generator according to any one of claims 1 to 3,
The plurality of radiators are allocated to a radiator for cooling the coolant circulating in the water jacket of the engine and a radiator for cooling the coolant circulating in the turbocharger air cooler and lubricating oil cooler of the engine. The stationary engine power generator is configured such that the number of radiators allocated for the water jacket or for the supercharger air cooler and the lubricating oil cooler can be changed.

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