CN103452849A - Housing and turbo machinery having the same and compressor - Google Patents
Housing and turbo machinery having the same and compressor Download PDFInfo
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- CN103452849A CN103452849A CN201310192759XA CN201310192759A CN103452849A CN 103452849 A CN103452849 A CN 103452849A CN 201310192759X A CN201310192759X A CN 201310192759XA CN 201310192759 A CN201310192759 A CN 201310192759A CN 103452849 A CN103452849 A CN 103452849A
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Abstract
The invention discloses a housing and a turbo machinery having the same and a compressor. The invention aims to provide a housing capable of preventing high-pressure air from leaking from a split face and a turbo machinery having the housing and a compressor. A trunk part which is in parallel with axis, and bends around the axis. A curved part of a top part is disposed at a position where the end part of the trunk part protrudes in a curved manner, forming an axis. A bearing is disposed at the top part of the curved part. An upper housing and a lower housing divided by the split face are provided. A flange is provided with a housing fixed and fastened by a plurality of flange bolts. The flange is characterized in that the flange comprises a straight line part along the trunk part, a curved line part along the curved face part, and a top neighboring part being the periphery of the top part. The bolt interval of the curved line part is wider than that of the bolt interval of the straight line part and that of the top bolt interval of the top neighboring part.
Description
Technical field
The present invention relates to the housing and the turbomachinery and the compressor that possess this housing of accommodating mechanism section.
Background technique
For example, the compressor, other the housing of framework of turbomachinery that become pressurized gas, liquid have the housing that can cut apart at above-below direction, the housing of barrel shape etc.The housing that can cut apart at above-below direction is compared with the housing of barrel shape, the maintainability excellence.But alienable housing has the characteristic that pressurized gas easily leak from parting plane.
In recent years, the high-pressure trend of requirement compressor etc., the tendency in large footpath are arranged, accompany with it, especially, in the housing that can cut apart at above-below direction, the possibility of high pressure gas leakage also raises.
Therefore, in the housing that can cut apart at above-below direction, for corresponding high-pressure trend, large footpath, need to prevent the technology that pressurized gas leak from parting plane.
Background technique as this technical field, for example, patent documentation 1 has been put down in writing " form and have flexible airtight holding part in the inboard of horizontal joint flanged surface; the former in the gentle close holding part of flanged surface use to the flange bolt tightening, and the latter tightens with special bolt, accordingly; form crust; flanged surface is born and born the function as the interior pressure of pressurized container, in addition, airtight holding part is born with thermal distortion and kept accordingly bubble-tight function " (referring to making a summary).
Technical paper formerly
Patent documentation
Patent documentation 1: Japanese kokai publication hei 10-26006 communique
The housing that can cut apart at above-below direction forms respectively flange by the lower shell body of the upper shell at upside and downside, and mutual flange consists of fastening the fixing of the secure components such as bolt.
If in the housing formed like this, the pressure of pressurized gas (interior pressure) rises, and at the parting plane of upper shell and lower shell body, because of the fastening face produced of bolt, presses (compressing surface pressure) to reduce.And, if pressing, compressing surface disappears, at parting plane, produce breach.Usually, at parting plane, be incorporated with liner, have the time point of the amount of the breach produced in reality over the breach permitted value in liner, the possibility that the pressurized gas of enclosure interior leak from parting plane.
The breach that the disappearance that existence is pressed because of compressing surface produces in housing, near the large tendency of the change bearing portion of the running shaft that supports impeller.Therefore, for the high-pressure trend of realizing compressor etc., large footpath, be necessary to suppress near the breach of the housing of bearing portion.
But, the patchhole that the disclosed housing of patent documentation 1 need to the airtight holding part from the outside to the inboard guides special bolt.Therefore, if produce breach in airtight holding part, the situation that exists the pressurized gas in housing to leak to outside through inserting hole from this breach.
Therefore, the present invention be take provides a kind of and can suppress the housing that pressurized gas leak from parting plane and turbomachinery and the compressor that possesses this housing is problem.
Summary of the invention
In order to solve aforementioned problems, the present invention makes parallel with axis and become the curved face part at top around the position that the end of the trunk of this axis bending bloats into axis with forming the curved surface shape, is divided into the housing of the first housing and the second housing by the parting plane that comprises axis.And, there is following characteristics,, in parting plane, the first flange be formed on the first housing contacts with the second flanged surface on being formed on the second housing, fastening fixing by a plurality of secure components, wider than the configuration space near the section configuration space of the part along trunk, top along the configuration space of the secure component in the part of curved face part.
In addition, make turbomachinery and the compressor that possesses this housing.
The invention effect
According to the present invention, can provide a kind of and can suppress the pressurized gas housing leaked from parting plane and the turbomachinery and the compressor that possess this housing.
The accompanying drawing explanation
Fig. 1 (a) means the stereogram of the outward appearance of housing, is (b) sectional view of flange of the Sec1-Sec1 of (a).
Fig. 2 is the plan view of embodiment 1 housing.
Fig. 3 is the plan view of embodiment 2 housing.
Fig. 4 (a) and (b) are sectional views of the Sec2-Sec2 of Fig. 3, mean from the figure of the fastened state of upper flange and these both sides of lower flange.
Fig. 5 is the plan view of embodiment 3 housing.
Fig. 6 means upper shell and the lower shell body stereogram by the fastening fixing state of top clamping bolt.
Embodiment
Below, the figure with reference to suitable, explain embodiments of the invention.
(a) of Fig. 1 is the External view of relevant embodiment's 1 housing, is (b) sectional view of the locational flange of Sec1-Sec1.
As shown in Fig. 1 (a), relevant embodiment's 1 housing 1 is the hollow cylindrical shape that positive apparent time becomes circular, in inner accommodating mechanism section, the shape bloated with being its two end part curved surface shape.Here the curved surface of mentioning is for example sphere, ellipsoidal surface, if but can bear the curve form at the pressure (interior pressure) of inside generation, its shape is not limited.
And each that (specifically, is the curved top bloated) at two end part respectively possesses 1 bearing 12.Bearing 12 rotary supports are incorporated in the running shaft of the rotary components such as the impeller (not shown go out) of housing 1.And, will be from a side bearing 12 towards the straight line of the opposing party's bearing 12 the axis CL as housing 1, using the direction of axis CL as axle direction.
According to such structure, it is parallel with axis CL and around the trunk 10a of this axis CL bending that the cylindrical shape of housing 1 forms.In addition, bloating into axis CL becomes top 10c the axial end curved surface shape of trunk 10a, forms curved face part 10b.
That is to say, housing 1 comprise parallel with axis CL and around the trunk 10a cylindraceous of this axis CL bending and curved surface shape bloat into axis CL and become the curved face part 10b of top 10c and form.And, at the top of curved face part 10b 10c, bearing 12 is installed.
Have, relevant embodiment's 1 housing 1, for example at the center of above-below direction, is divided into the first housing (upper shell 1a) and the second housing (lower shell body 1b) by the horizontal plane that comprises axis CL again.Lower shell body 1b forms the below of hollow housing 1, is formed with aptly for sucking the nozzle 3 of the pressurized gas that the gas that will compress or discharge compressed.In addition, being not limited to the structure that nozzle 3 is formed on lower shell body 1b, can be also the structure that nozzle 3 is formed on upper shell 1a.
Around the parting plane of upper shell 1a, lower shell body 1b, respectively outward direction expansion, be formed with upper flange 4a(the first flange), lower flange 4b(the second flange).And, in parting plane, upper shell 1a and lower shell body 1b overlap, and upper flange 4a is contacted with lower flange 4b face.Like this, upper flange 4a and lower flange 4b face are overlapped contiguously, form the flange 4 of housing 1.
In addition, between upper flange 4a and lower flange 4b, usually sandwich the liner that prevents high pressure gas leakage (not shown go out).
As shown in Fig. 1 (b), upper flange 4a is connected to ground on upper flange 4a and form by the secure component that becomes the first secure component (flange bolt 5) towards the slotting logical a plurality of inserting hole 4a1 of lower flange 4b side.In addition, on lower flange 4b, the position corresponding at the inserting hole 4a1 with upper flange 4a forms the tapped hole 4b1 screwed by flange bolt 5.
And, under the state of upper flange 4a and lower flange 4b coincidence, flange bolt 5 is inserted through inserting hole 4a1 from upper flange 4a side, screws with the tapped hole 4b1 be formed on lower flange 4b.According to such structure, the upper shell 1a of coincidence and lower shell body 1b are fastening fixing by flange bolt 5, form housing 1.
In addition, at housing 1, form the top through hole connected at axle direction at the top of curved face part 10b 10c centered by axis CL.The running shaft that this top through hole for example becomes the impeller installed being incorporated in housing 1 (not shown go out) is rotated the bearing hole 11 of the bearing 12 of support.Bearing hole 11 for example is formed the chimeric toroidal of main part 12a of the general cylindrical shape of bearing 12.And bearing 12 has the bearing flange 12b of radius vector Directional Extension around main part 12a, bearing 12 is loaded into bearing hole 11, make bearing flange 12b butt bearing hole 11 around.
Arrange aptly on bearing flange 12b by bearing bolt 12c and insert logical bearing bolt hole 12b1.In addition, around bearing hole 11, form aptly by bearing bolt hole 12b1 is inserted to the tapped hole (bearing tapped hole 110) that logical bearing bolt 12c screws.
Bearing 12 is embedded in bearing hole 11, make bearing flange 12b butt bearing hole 11 around.And, the bearing bolt hole 12b1 of bearing flange 12b is inserted to logical bearing bolt 12c spinning in the bearing tapped hole 110 on every side that is formed on bearing hole 11, the fastened housing 1 that is fixed on of bearing 12.
Now, usually sandwich the liner that prevents high pressure gas leakage (not shown go out) between bearing flange 12b and housing 1.
The structure of bearing hole 11 is not defined.For example, if make the structure of axle direction end (periphery of the part of the top 10c of formation curved face part 10b) the mutual semicircle ground opening of upper shell 1a and lower shell body 1b, can overlap at upper shell 1a and lower shell body 1b, while forming housing 1, the conglobate bearing hole 11 of shape.
Fig. 2 sees the plan view of housing from the upper casing side.
As shown in Figure 2, form continuously trunk 10a and curved face part 10b on housing 1.In addition, flange 4 has the profile formation along the parting plane of housing 1, and along the line part 2a of trunk 10a formation and the curve part 2b formed along curved face part 10b.
Have again, there is near the 2c of section top near the top 10c that bearing 12 is installed.
As shown in Fig. 1 (a), because flange 4 is that upper flange 4a and lower flange 4b coincidence form, so upper flange 4a and lower flange 4b also have near the 2c of section line part 2a, curve part 2b, top.Near the scope of the 2c of section record top, back.
And, in embodiment 1, the difference of configuration space (curve part bolt interval L2) of the flange bolt 5 in the curve part 2b of the configuration space (line part bolt interval L1) of the flange bolt 5 in the line part 2a of flange 4 and flange 4 of take is feature.Specifically, take curve part bolt interval L2, to be set widelyr than line part bolt interval L1 be feature.Have, near the configuration space (bolt interval, top L3) of the flange bolt 5 in the 2c of the section top of flange 4 of take is feature with line part bolt interval L1 about equally again.In addition, line part bolt interval L1 be flange bolt 5 in distance in the heart.In addition, curve part bolt interval L2 and bolt interval, top L3 are along distance in the heart in the flange bolt 5 of the curve of forming curves section.
If making the interior pressure of housing 1 is Pin, the compression area of housing 1 is Sc, and the axle power increasing amount of the bolt integral body caused because of interior pressure is Fp, the flange 4(upper flange 4a, the lower flange 4b that cause because of interior pressure) face to press reduction be Tb, following formula (1) is set up.
Pin×Sc＝Fp＋Tb…（1）
Here, interior pressure is that compression area is that the hollow part of housing 1 is projected in to the area of contour on the imaginary plane parallel with parting plane at the pressure of the housing 1 inner pressurized gas that produce.In addition, the axle power increasing amount of bolt integral body is producing upper shell 1a(referring to Fig. 1 (a) because of interior pressure) and lower shell body 1b(referring to (a) of Fig. 1) during the power of the direction pulled open, the axle power of the flange bolt 5 of resisting this power and increasing, it is to pull open because of interior pressure the reduction that the compressing surface on the parting plane produced is pressed due to upper shell 1a and lower shell body 1b that face is pressed reduction.
Wherein, face presses near reduction 2c of section line part 2a, the curve part 2b of flange 4 and top different.Therefore, if make the face of line part 2a, curve part 2b, near the 2c of section in top press reduction to be respectively Tba, Tbb, Tbc, following formula (2) is set up.
Tb＝Tba＋Tbb＋Tbc…（2）
A () referring to Fig. 1 by upper flange 4a() in the past, and lower flange 4b(referring to (a) of Fig. 1) fastening fixing flange bolt 5 near line part 2a, curve part 2b, top the 2c of section all uniformly-spaced to be configured.Make line part 2a, curve part 2b now, the face of the 2c of section in top near press reduction to be respectively Tba2, Tbb2, Tbc2.
Below, near flange bolt 5 2c of section line part 2a, curve part 2b, top all is called to comparative example with situation about uniformly-spaced configuring.
In comparative example and embodiment 1, if the axle power increasing amount Fp of the interior bolt integral body of pressing Pin, compression area Sc and causing because of interior pressure is equated, the face caused because of interior pressure presses reduction also to equate.
Therefore, following formula (3) is set up.
Tb＝Tba＋Tbb＋Tbc＝Tba2＋Tbb2＋Tbc2…（3）
In comparative example, the known face that possesses the part (near the 2c of section top) of bearing 12 is pressed the reduction maximum, and the face of curve part 2b is pressed the reduction minimum.
On the other hand, in embodiment 1, make the curve part bolt interval L2 of the flange bolt 5 in curve part 2b larger than line part bolt interval L1 and bolt interval, top L3.By this structure, the face pressure reduction in curve part 2b presses reduction to compare also increase with the face in the curve part 2b of comparative example.Therefore, following formula (4) is set up.
Tbb－Tbb2＞0…（4）
And, according to formula (3), (4), following formula (5) is set up.
（Tba－Tba2）＋（Tbc－Tbc2）＜0…（5）
In embodiment 1, press reduction by the face increased in curve part 2b, the face face in reduction and near the 2c of section in top of pressing reduced in line part 2a is pressed reduction.Therefore, in embodiment 1, the face in reduction and near the 2c of section in top of pressing of the face in line part 2a presses reduction less than comparative example respectively, and set up following formula (6), (7).
Tba－Tba2＜0…（6）
Tbc－Tbc2＜0…（7）
Like this, in embodiment 1, by the face that makes curve part 2b, press reduction to press reduction large than the face of comparative example, make the face near the 2c of section in top press reduction to press reduction little than the face of comparative example.
If near top, the face of the 2c of section presses reduction little, can suppress the breach of the 2c of section in top near, can prevent rightly that pressurized gas from leaking near the 2c of section top.
In addition, as previously mentioned, in comparative example, in the part that possesses bearing 12, face is pressed the reduction maximum.Therefore, in embodiment 1, make to be considered to face and press reduction large, the scope that breach is large on the impact of high pressure gas leakage is near the 2c of section top.That is to say, the scope of the 2c of section in top near is the design load by the size decision of the interior pressure of the size of housing 1, generation.Preferably the scope of the 2c of section in such top near is such as the decision such as measurement by experiment.
As shown in Figure 2, in making the housing 1 that curve part bolt interval L2 is larger than line part bolt interval L1, carry out the parsing based on finite element method, the breach obtained near the 2c of section in top is compared the such result of reduction by 15% with comparative example.Thus, make curve part bolt interval L2 larger than line part bolt interval L1, there is the effect that suppresses the breach near the 2c of section in top.
In addition, if make curve part bolt interval L2 larger than line part bolt interval L1, the face in curve part 2b presses the minimizing quantitative change large, easily is created in the breach of curve part 2b.But, in comparative example, the face of curve part 2b presses reduction little.That is to say, curve part 2b is the zone that is difficult to produce breach.Therefore, even become with comparative example, compare, the face of curve part 2b presses the minimizing quantitative change large, easily at curve part 2b, produces the state of breach, also can not produce at curve part 2b the breach of that degree of high pressure gas leakage.That is to say, the breach of curve part 2b is suppressed in can ignore its effect.
In addition, the CLV ceiling limit value of the curve part bolt interval L2 in curve part 2b is not specially limited.For example, from upper flange 4a((a) referring to Fig. 1) pressure distribution in the fastening fixing flange 4 of 5 of the flange bolts that are inserted through of side to lower flange 4b((a) referring to Fig. 1) side expansion coniform, when the angle of the central shaft of supposing this circular cone and bus is 45 °, the CLV ceiling limit value of curve part bolt interval L2 can be meaned by following formula (8).
L2max＝d＋2t…（8）
Here, L2max means the CLV ceiling limit value of curve part bolt interval L2, and d means nut (bolt head) footpath, and t means flange thickness (total of the thickness of upper flange 1a and lower flange 1b).
Also can be like this, the CLV ceiling limit value L2max that will be meaned by formula (8) is as curve part bolt interval L2.
As mentioned above, in embodiment 1, make the curve part bolt interval L2 in curve part 2b larger than the line part bolt interval L1 in line part 2a, then have, bolt interval, the top L3 near the 2c of section in top is equated with line part bolt interval L1.
According to this structure, the face that can reduce near the 2c of section in top is pressed reduction, can suppress the breach of the 2c of section in top near.Therefore, can prevent rightly that pressurized gas from leaking near the 2c of section top, can make the high-pressure trend that can fully bear turbomachinery, compressor, the housing 1 in large footpath.
In addition, can cut down at curve part 2b (a) referring to Fig. 1 by upper flange 4a() and lower flange 4b(referring to (a) of Fig. 1) quantity of fastening fixing flange bolt 5.Therefore, upper shell 1a(is referring to Fig. 1 (a)) with (a) of lower shell body 1b(referring to Fig. 1) fixing and separates and becomes easily, the maintainability raising.In addition, because the use radical of flange bolt 5 is cut down, so, the effect of the cost that can also be reduced.
Embodiment 2
Fig. 3 is the plan view of relevant embodiment's 2 housing.
About embodiment 2 housing 100 is and relevant embodiment's 1 housing 1((a) referring to Fig. 1) structure that roughly is equal to, (a) by upper shell 1a(referring to Fig. 1) and lower shell body 1b(referring to (a) of Fig. 1) form.
In the housing 100 shown in Fig. 3, the identical constituting component of housing 1 with shown in Fig. 1 is marked to identical symbol, omit detailed explanation.
Embodiment 2 housing 100 is the configuration of the flange bolt 5 near the 2c of section in top with the difference of embodiment 1 housing 1.
As shown in Figure 3, near the 2c of the section top of flange 4, with bolt interval, top L3 from upper shell 1a((a) referring to Fig. 1) side is inserted through (a) of lower shell body 1b(referring to Fig. 1) between the flange bolt 5 of side, as shown in the circle of dotted line, possesses the second secure component (lower flange bolt 5a) that is inserted through upper shell 1a side from lower shell body 1b side as secure component.
The (a) and (b) of Fig. 4 are sectional views of locational flange of the Sec2-Sec2 of Fig. 3.
As shown in Fig. 4 (a), near the 2c of the section top of flange 4, form inserting hole 4a1 at upper flange 4a with L3 interval, bolt interval, top.In addition, at lower flange 4b, form the tapped hole 4b1 screwed by flange bolt 5 in the position corresponding with inserting hole 4a1.
Have again, at lower flange 4b, in the centre of adjacent tapped hole 4b1, lower flange 4b is connected to ground and form the slotting logical inserting hole 4b2 by lower flange bolt 5a.And, at upper flange 4a, form the tapped hole 4a2 screwed by lower flange bolt 5a in the position corresponding with inserting hole 4b2.
And near the 2c of the section top of flange 4, by inserting logical flange bolt 5 from upper flange 4a side and inserting logical lower flange bolt 5a fastening fixedly upper flange 4a and lower flange 4b from lower flange 4b side.
According to this structure, can be near top the 2c of section increase the quantity of upper flange 4a and the fastening fixing secure component (flange bolt 5, lower flange bolt 5a) of lower flange 4b.
In the situation that the footpath of the nut of flange bolt 5 (bolt head) is " d ", in comparative example, the minimum value of bolt interval, top L3 is restricted to " d ".By as embodiment 2, to append from lower flange 4b side and insert logical lower flange bolt 5a, the minimum value that can make bolt interval, top L3 is " d/2 ".Therefore, can be near top the 2c of section the bolt quantity of fastening fixedly upper flange 4a and lower flange 4b is increased to 2 times of quantity of the bolt in comparative example.And, can make the compressing surface near the 2c of section in top press increase, can suppress rightly the generation of breach.
Inserting logical lower flange bolt 5a from lower flange 4b side and can be and insert from upper flange 4a side the parts (bolt) that logical flange bolt 5 is equal to, can be also size, the different parts of fastening force.
In addition, in (a) of Fig. 4, illustrate the structure that possesses 2 lower flange bolt 5a, still, the quantity of lower flange bolt 5a is not limited to 2.
For example, in the situation that lower flange bolt 5a is the parts (bolt) less than flange bolt 5, also can be at the lower flange bolt 5a of configuration more than 2 between flange bolt 5.
In addition, in Fig. 4 (a), illustrate the tapped hole 4a2 that front end stops up in upper flange 4a side, but its shape is not defined yet.
For example, also can, shown in Fig. 4 (b), be formed in the through hole that the tapped hole 4a2 on upper flange 4a connects upper flange 4a.
And, also can make the secure component (stud bolt 6a) that is processed with the worm tooth of the worm tooth engagement of the tapped hole 4a2 of upper flange 4a from upper flange 4a side by spinning at tapped hole 4a2, in lower flange 4b side, the structure that nut 6b and stud bolt 6a screw.According to this structure, stud bolt 6a becomes the second secure component screwed with the tapped hole 4a2 be formed on upper flange 4a.And, stud bolt 6a can be embedded from upper flange 4a side.
For example, even at housing 100(referring to Fig. 3) the operation space of downside narrow, lower flange bolt 5a is screwed into the situation of operational difficulty of tapped hole 4a2 of upper flange 4a from lower flange 4b side, also can carry out the embedding of stud bolt 6a from upper flange 4a side, upper flange 4a and the fastening fixing operation of lower flange 4b are become to easy.
In addition, also can make flange bolt 5 as an alternative the first secure component be processed with secure component (stud bolt 6c) with the worm tooth of the worm tooth engagement of tapped hole 4b1 from upper flange 4a side through inserting hole 4a1 by spinning the structure at tapped hole 4b1.In this case, if make nut 6d, embed the structure of stud bolt 6c from upper flange 4a side, upper flange 4a and lower flange 4b are fastened fixing.
In addition, in flange 4, the 2c of section is the zone that the most easily produces breach near top, flange bolt 5, lower flange bolt 5a the closer to bearing 12(referring to Fig. 3), the effect that suppresses near the breach of the 2c of section top is higher.Therefore, in the situation that increase the quantity of flange bolt 5, lower flange bolt 5a, from the side near bearing 12, increase effective.
As mentioned above, in embodiment 2, make near the 2c of the section top of flange 4, from lower flange 4b sidespin, load flange bolt 5a, make the structure that the quantity of upper flange 4a and the fastening fixing secure component (bolt) of lower flange 4b is increased.By this structure, the breach of the 2c of section is suppressed effectively near the top of flange 4, can make the high-pressure trend that can bear fully compressor etc., the housing 100 in large footpath.
Embodiment 3
Fig. 5 is the plan view of relevant embodiment's 3 housing.
About embodiment 3 housing 200 is and relevant embodiment's 1 housing 1((a) referring to Fig. 1) structure that roughly is equal to, (a) by upper shell 1a(referring to Fig. 1) and lower shell body 1b(referring to (a) of Fig. 1) form.
In the housing 200 shown in Fig. 5, the identical constituting component of housing 1 with shown in Fig. 1 is marked to identical symbol, omit detailed explanation.
Embodiment 3 housing 200 is with the difference of embodiment 1 housing 1, and upper shell 1a and the fastening fixing secure component (top clamping bolt 7) of lower shell body 1b are arranged on to bearing hole 11 these points that bearing 12 is installed.
As shown in Fig. 1 (a), bearing hole 11 is through holes that the top 10c of the curved face part 10b of housing 1 is connected at axle direction, and its side (inner peripheral surface) cut apart by the parting plane of upper shell 1a and lower shell body 1b.
Therefore, embodiment 3 make upper shell 1a and lower shell body 1b at the inner peripheral surface of bearing hole 11 by the fastening fixing structure of top clamping bolt 7.
Fig. 6 means upper shell and the lower shell body stereogram by the fastening fixing state of top clamping bolt.
As shown in Figure 6, at upside inner peripheral surface 11a(the first inner peripheral surface of the upper shell 1a that forms bearing hole 11), in order to take in the top clamping bolt 7 that becomes the 3rd secure component, be formed with the accommodation space 11e of bearing hole 11 side openings.This accommodation space 11e is formed towards the concavity in the direction outside, footpath of bearing hole 11, has the bottom surface 11e1 parallel with parting plane, and this bottom surface 11e1 starts to have suitable wall thickness and forms from parting plane.And, form the bottom through hole 11c that penetrates into parting plane from accommodation space 11e at bottom surface 11e1.In addition, at lower shell body 1b, at downside inner peripheral surface 11b(the second inner peripheral surface that forms bearing hole 11), in parting plane, with bottom surface 11e1 face in opposite directions, the position corresponding with bottom through hole 11c forms tapped hole (parting plane tapped hole 11d).
And, in the housing 200 of upper shell 1a and lower shell body 1b coincidence, top clamping bolt 7 is incorporated in accommodation space 11e.Have, the top clamping bolt 7 that is incorporated in accommodation space 11e is inserted logical bottom through hole 11c again, by spinning at the parting plane tapped hole 11d be formed on lower shell body 1b.
In addition, Fig. 6 only illustrates a side inner peripheral surface, but preferably the inner peripheral surface in opposite directions of bearing hole 11 forms similarly.
According to this structure, upper shell 1a and lower shell body 1b are fastening fixing at bearing hole 11 by top clamping bolt 7.Breach between upper flange 4a and lower flange 4b easily be take the inner peripheral surface (upside inner peripheral surface 11a, downside inner peripheral surface 11b) of bearing hole 11 and is that starting point produces.Because top clamping bolt 7 can be fastening fixing by upper shell 1a and lower shell body 1b at the inner peripheral surface of the bearing hole 11 of the starting point that becomes breach, so, the generation of breach can effectively be suppressed.
Be formed in the situation that insert logical inserting hole by top clamping bolt 7 outside of leading to housing 200, when carrying out fastening fixing position generation breach at top clamping bolt 7, pressurized gas leak to the outside of housing 200 through inserting hole.Embodiment 3 accommodation space 11e is the structure that there is no to form the inserting hole of the outside lead to housing 200, and when carrying out fastening fixing position at top clamping bolt 7 while having produced breach, pressurized gas can not leak to the outside of housing 200.
In addition, due to the opening of bearing hole 11 sides of accommodation space 11e by bearing 12((a) referring to Fig. 1) stop up, so pressurized gas can not leak from this opening.
In addition, be formed on the length of top clamping bolt 7 by the height by accommodation space 11e more than, can top clamping bolt 7 be accommodated in to accommodation space 11e from bearing hole 11 sides.
For example, so long as, by after upper shell 1a and lower shell body 1b coincidence, embed (a) of bearing 12(referring to Fig. 1) front, by top clamping bolt 7, upper shell 1a and the fastening fixing order of lower shell body 1b are got final product.
Be formed on the top 10c of the curved face part 10b bloated at housing 200 due to bearing hole 11, so the accommodation space 11e that takes in top clamping bolt 7 is formed near the end of housing 200.Therefore, the instrument of tightening top clamping bolt 7 can be inserted from bearing hole 11 easily, by top clamping bolt 7, that upper shell 1a and the fastening fixing operation of lower shell body 1b is also easy.
In addition, Fig. 6 illustrates the state of taking in 1 top clamping bolt 7 at 1 accommodation space 11e, but its structure is not defined.For example, can be also to take in the structure of the top clamping bolt 7 more than 2 at 1 accommodation space 11e.In addition, can be also the structure that forms the accommodation space 11e more than 2.
In addition, top clamping bolt 7 can be with flange bolt 5 or lower flange bolt 5a(referring to Fig. 4 (a)) bolt of same specification can be also the bolt of different size.
In addition, Fig. 6 illustrates (a) referring to Fig. 1 at upper shell 1a() upside inner peripheral surface 11a form the state of accommodation space 11e.But, also can be at lower shell body 1b(referring to Fig. 1 (a)) downside inner peripheral surface 11b form the structure of accommodation space 11e.In this case, form parting plane tapped hole 11d at upside inner peripheral surface 11a.
As mentioned above, the housing 200(in embodiment 3 is referring to Fig. 5) in, as shown in Figure 6, can be by the top clamping bolt 7 of the accommodation space 11e that is incorporated in the upside inner peripheral surface 11a that is formed at bearing hole 11, that upper shell 1a and lower shell body 1b is fastening fixing.Accordingly, can be at the bearing hole 11 of the starting point that becomes the breach produced between upper flange 4a and lower flange 4b, upper shell 1a and lower shell body 1b is fastening fixing.Therefore, the breach produced between upper flange 4a and lower flange 4b can be suppressed at rightly, the high-pressure trend that can fully bear compressor, the housing 200 in large footpath can be made.
In addition, the present invention is the invention that is not limited to aforesaid embodiment.For example, aforesaid embodiment is for ease of understanding ground explanation the present invention, and the embodiment who explains might not be to be defined in the invention that possesses illustrated all structures.
In addition, also can, by the part of certain embodiment's structure and other embodiment's structure replacing, in addition, also can in certain embodiment's structure, add other embodiment's structure.
For example, be incorporated in (a) of housing 1(referring to Fig. 1) section of mechanism can be the parts that form compressor, can be also the parts that form other turbomachinery.
That is to say, can be using housing 1 as turbomachinery, the housing utilization of compressor.
In the situation that compressor possesses housing 1, possess impeller (not shown go out) as rotary component, bearing 12(is referring to Fig. 1 (a)) support the running shaft of impeller.
In the situation that other turbomachinery possesses housing 1, for example possess, for realizing the rotary component (, in the situation that the impeller that turbomachinery is gas fan) of function separately, bearing 12 supports the running shaft of its rotation.
In addition, be not limited to the divided housing 1 at the center of above-below direction, the present invention also can be applied in and compare up with center or the divided housing 1 in below.
In addition, the present invention also can be applied at the divided housing 1 of the transverse direction with the above-below direction quadrature.
In addition, the shape of housing 1 is made to general cylindrical shape, but this shape is not defined yet.For example, also can apply the present invention to the housing 1 of flat shape that cylindrical shape is damaged by pressure at above-below direction, transverse direction.
In addition, the present invention by flange 4((a) referring to Fig. 1) curve part 2b(referring to Fig. 2) in flange bolt 5(referring to Fig. 2) curve part bolt interval L2 be configured than line part 2a(referring to Fig. 2) in the line part bolt interval L1 of flange bolt 5 wide.
This structure is not defined yet.For example, in comparative example, in the situation that exist face to press the part of reduction minimum, also can make the configuration space structure wider than the configuration space at other position of the flange bolt 5 made in this part except curve part 2b.
That is to say, as long as make by face, pressing reduction to become the configuration space of the best part constriction flange bolt 5, at face, press reduction to become the configuration space that minimum part enlarges flange bolt 5, and the integral body that spreads all over flange 4 make face press the uniform structure of reduction to get final product.
In addition, the present invention is not the invention that is defined in aforesaid embodiment, can be in the scope of the purport that does not break away from invention, and change aptly.
Symbol description
1: housing; 1a: upper shell (the first housing); 1b: lower shell body (the second housing); 2a: line part; 2b: curve part; Near 2c: section top; 4: flange; 4a: upper flange (the first flange); 4a1: inserting hole (inserting hole that the first flange is connected); 4a2: tapped hole (being formed on the tapped hole on the first flange); 4b: lower flange (the second flange); 4b1: tapped hole (being formed on the tapped hole on the second flange); 4b2: inserting hole (inserting hole that the second flange is connected); 5: flange bolt (the first secure component, secure component); 5a: lower flange bolt (the second secure component, secure component); 6a: stud bolt (the second secure component, secure component); 6c: stud bolt (the first secure component, secure component); 7: top clamping bolt (the 3rd secure component); 10a: trunk; 10b: curved face part; 10c: top; 11: bearing hole (top through hole); 11a: upside inner peripheral surface (the first inner peripheral surface); 11b: downside inner peripheral surface (the second inner peripheral surface); 11c: bottom through hole; 11d: parting plane tapped hole; 11e: accommodation space; 11e1: bottom surface; CL: axis; L1: line part bolt interval (configuration space of secure component); L2: curve part bolt interval (configuration space of secure component); L3: bolt interval, top (configuration space of secure component).
Claims (9)
1. a housing, is characterized in that, comprise parallel with axis and around the trunk of this axis bending,
From the end curved surface shape of aforementioned trunk bloat into aforementioned axis position become top curved face part and
The bearing that the aforementioned top of aforementioned curved face part possesses,
Take in the section of mechanism with the rotary component supported by aforementioned bearings,
The first housing and the second housing by the parting plane that is included aforementioned axis, cut apart form, in the previous segmentation face, the first flange be formed on aforementioned the first housing contacts with the second flanged surface on being formed on aforementioned the second housing, fastening fixing by a plurality of secure components
Aforementioned the first flange and aforementioned the second flange have
The line part formed along aforementioned trunk,
The curve part formed along aforementioned curved face part,
Become near near the section in top of aforementioned top,
The configuration space of the aforementioned secure component in aforementioned curve part is wider than the configuration space of the aforementioned secure component near the section configuration space of the aforementioned secure component in aforementioned line part and aforementioned top.
2. housing as claimed in claim 1, is characterized in that, near the configuration space of aforementioned secure component aforementioned top in section is narrower than the configuration space of the aforementioned secure component in aforementioned line part.
3. housing as claimed in claim 2, is characterized in that, aforementioned secure component comprises and be inserted through the inserting hole that aforementioned the first flange is connected, and screw the first secure component that is formed at the tapped hole on aforementioned the second flange,
Be inserted through the inserting hole that aforementioned the second flange is connected, and screw at the second secure component that is formed at the tapped hole on aforementioned the first flange,
At aforementioned line part and aforementioned the first secure component of aforementioned curve part alignment arrangements,
Near aforementioned top, section alternately configures aforementioned the first secure component and aforementioned the second secure component.
4. housing as claimed in claim 3, is characterized in that, the tapped hole be formed on aforementioned the first flange is through hole with at least one party who is formed on the tapped hole on aforementioned the second flange.
5. housing as described as any one in claim 1 to 4, is characterized in that, has centered by aforementioned axis, the aforementioned top of aforementioned curved face part is connected and is equipped with aforementioned bearings the top through hole,
In aforementioned the first housing, form the inner peripheral surface of aforementioned top through hole the first inner peripheral surface,
In aforementioned the second housing, form the inner peripheral surface of aforementioned top through hole the second inner peripheral surface,
A side, the aforementioned top through hole side opening of aforementioned the first inner peripheral surface or aforementioned the second inner peripheral surface and have the bottom surface parallel with the previous segmentation face accommodation space,
The bottom through hole that the aforementioned bottom surface of aforementioned accommodation space is connected,
A side who does not form aforementioned accommodation space in aforementioned the first inner peripheral surface and aforementioned the second inner peripheral surface, in the previous segmentation face, be formed on the locational parting plane tapped hole corresponding with aforementioned bottom through hole with aforementioned bottom surface face in opposite directions,
The 3rd secure component is incorporated in aforementioned accommodation space, and screws from aforementioned bottom through hole side and previous segmentation face tapped hole.
6. a turbomachinery, is characterized in that, possesses claim 1 to the described housing of any one in claim 4.
7. a turbomachinery, is characterized in that, possesses housing claimed in claim 5.
8. a compressor, is characterized in that, possesses claim 1 to the described housing of any one in claim 4.
9. a compressor, is characterized in that, possesses housing claimed in claim 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-124876 | 2012-05-31 | ||
| JP2012124876A JP5988290B2 (en) | 2012-05-31 | 2012-05-31 | Casing and turbomachine and compressor provided with casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103452849A true CN103452849A (en) | 2013-12-18 |
| CN103452849B CN103452849B (en) | 2016-04-06 |
Family
ID=49735583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310192759.XA Expired - Fee Related CN103452849B (en) | 2012-05-31 | 2013-05-23 | Housing and the turbomachinery and the compressor that possess housing |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5988290B2 (en) |
| CN (1) | CN103452849B (en) |
| SA (1) | SA113340563B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574633A (en) * | 2014-08-12 | 2017-04-19 | 株式会社日立制作所 | Casing, and turbo machine and compressor having the casing |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014220963A (en) | 2013-05-10 | 2014-11-20 | 株式会社日立製作所 | Rotary electric machine |
| JP6120005B2 (en) * | 2014-02-28 | 2017-04-26 | トヨタ自動車株式会社 | Fastening structure of housing in turbocharger |
| US10697468B2 (en) | 2015-12-07 | 2020-06-30 | Mitsubishi Heavy Industries Compressor Corporation | Casing assembly and rotary machine |
| US10801505B2 (en) | 2016-03-28 | 2020-10-13 | Mitsubishi Heavy Industries Compressor Corporation | Rotary machine |
| JP7050517B2 (en) * | 2018-02-15 | 2022-04-08 | 三菱重工コンプレッサ株式会社 | Rotating machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759004A (en) * | 1980-09-29 | 1982-04-09 | Hitachi Ltd | Turbine |
| JPS6240156A (en) * | 1985-08-14 | 1987-02-21 | Casio Comput Co Ltd | Small electronic appliance |
| CN2061622U (en) * | 1989-12-26 | 1990-09-05 | 孙永才 | Biaxial water pump |
| US5263997A (en) * | 1992-03-27 | 1993-11-23 | Westinghouse Electric Corp. | Flange bolt load spreading plate |
| CN1246910A (en) * | 1997-02-06 | 2000-03-08 | 西门子公司 | Flange sealing in turbing housing admission |
| US20060039782A1 (en) * | 2004-08-18 | 2006-02-23 | General Electric Company | Compressor bleed air manifold for blade clearance control |
| JP2006183486A (en) * | 2004-12-27 | 2006-07-13 | Hitachi Ltd | Steam turbine |
| JP2010209750A (en) * | 2009-03-09 | 2010-09-24 | Mitsubishi Heavy Ind Ltd | Casing sealing structure and fluid machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6240156Y2 (en) * | 1980-06-18 | 1987-10-14 | ||
| CA2356142C (en) * | 1999-01-25 | 2008-01-15 | Elliott Turbomachinery Co., Inc. | Casing design for rotating machinery and method for manufacture thereof |
-
2012
- 2012-05-31 JP JP2012124876A patent/JP5988290B2/en active Active
-
2013
- 2013-05-18 SA SA113340563A patent/SA113340563B1/en unknown
- 2013-05-23 CN CN201310192759.XA patent/CN103452849B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759004A (en) * | 1980-09-29 | 1982-04-09 | Hitachi Ltd | Turbine |
| JPS6240156A (en) * | 1985-08-14 | 1987-02-21 | Casio Comput Co Ltd | Small electronic appliance |
| CN2061622U (en) * | 1989-12-26 | 1990-09-05 | 孙永才 | Biaxial water pump |
| US5263997A (en) * | 1992-03-27 | 1993-11-23 | Westinghouse Electric Corp. | Flange bolt load spreading plate |
| CN1246910A (en) * | 1997-02-06 | 2000-03-08 | 西门子公司 | Flange sealing in turbing housing admission |
| US20060039782A1 (en) * | 2004-08-18 | 2006-02-23 | General Electric Company | Compressor bleed air manifold for blade clearance control |
| JP2006183486A (en) * | 2004-12-27 | 2006-07-13 | Hitachi Ltd | Steam turbine |
| JP2010209750A (en) * | 2009-03-09 | 2010-09-24 | Mitsubishi Heavy Ind Ltd | Casing sealing structure and fluid machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574633A (en) * | 2014-08-12 | 2017-04-19 | 株式会社日立制作所 | Casing, and turbo machine and compressor having the casing |
| CN106574633B (en) * | 2014-08-12 | 2019-02-26 | 株式会社日立制作所 | Shell and the turbomachinery and compressor for having shell |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013249771A (en) | 2013-12-12 |
| SA113340563B1 (en) | 2016-10-03 |
| JP5988290B2 (en) | 2016-09-07 |
| CN103452849B (en) | 2016-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HITACHI,LTD. Free format text: FORMER OWNER: HITACHI PLANT TECHNOLOGIES LTD. Effective date: 20140108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140108 Address after: Tokyo, Japan Applicant after: Hitachi Ltd. Address before: Tokyo, Japan, Japan Applicant before: Hitachi Plant Technologies Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20180523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |