CN203604265U - Large horizontal partition welding cantilever volute - Google Patents
Large horizontal partition welding cantilever volute Download PDFInfo
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- CN203604265U CN203604265U CN201320735605.6U CN201320735605U CN203604265U CN 203604265 U CN203604265 U CN 203604265U CN 201320735605 U CN201320735605 U CN 201320735605U CN 203604265 U CN203604265 U CN 203604265U
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- volute
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- welding cantilever
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- 238000003466 welding Methods 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 title abstract 4
- 238000013507 mapping Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to compressor devices, in particular to a large horizontal partition welding cantilever volute. The large horizontal partition welding cantilever volute comprises an upper volute, a lower volute, a flange and a gas outlet air barrel. The upper volute is connected with the lower volute through the flange to form a volute chamber, a section of inlet is axially formed in the volute chamber, and the gas outlet air barrel is arranged on one side of the lower volute in the circumferential tangential direction of the lower volute and communicated with the volute chamber. The two ends of the lower volute extend outwards in the radial direction to form an outwards-extending plane, and the lower end of the outwards-extending plane is provided with an elastic support connected with a base. The large horizontal partition welding cantilever volute is simple in structure, convenient to install and maintain and low in machining and manufacturing difficulty.
Description
Technical field
The utility model relates to compressor apparatus, specifically a kind of large-scale horizonally split welding cantilever spiral case.The first stage impeller volute casing position that is applied to large-scale single-cylinder multistage cantilever centrifugal compressor and large-scale assembly type compressor, facilitates the installation and maintenance work of super large spiral case.
Background technique
MCO single cylinder cantilever multistage compressor series model is as the main product of supporting 2-6 ten thousand air separation facilitys of coalification.The maximization of air separation facility, is most widely used as the multistage cantilever centrifugal compressor of 2.8-4.6 ten thousand Kong Fen main force compressor type MCO type.The type product adopts the half-open impeller of chopped-off head always, and the independent welding of the plug-in entirety of horizonally split casing spiral case, realizes axial admission, and built-in stator controlling mechanism regulates, single impeller Efficient Compression, Diffuser diffusion, and spiral case gradual change enters next section cooled compressed again after expanding stream.All adopt at present the axial suspension structures of integral solder worm frame and cast inblock both at home and abroad.
Because spiral case is overall structure, one section of inlet flow rate of compressor is large, and gateway flow restriction, more than entrance caliber DN1200, more than outlet caliber DN1000, spiral case adopts integral solder structure, and weight reaches 10-20 ton, 4.7 meters of height, wide to 1.1 meters, axially coordinate with casing outer end plate seam, bolt is combined and installed, and Problems Existing is as follows:
1. difficulty before dispatching from the factory, is installed in assembling.Because spiral case is overweight, level and circumferencial direction are without reference level, and the axial fitting surface of end plate is shorter, after slinging, axially adjust and install manually with 20 ton overhead travelling cranes, and installation is wasted time and energy.In addition for guaranteeing the flow leakage of half-open impeller blade external boundary, before impeller, be provided with cast inblock type ring, the type ring 700KG that weighs, axially be arranged on spiral case, with the gap of impeller assurance 3MM, install and adjust all can only install and carry out at spiral case, and operating space is narrow and small, need professional tool to install, the utmost point is difficult to ensure card installation precision.
2. waste time and energy in the on-the-spot installation of user, maintenance.Spiral case is excessive, assembles after can only being packaged into separately scene again.On-the-spot professional workforce is few, and lifting is not special device, installs than more difficult before dispatching from the factory.When overhauling half-open impeller after transhipment some cycles and adjusting model gap, all need whole spiral case to sling and unload, between entrance pipe and casing, axial distance is limited, after spiral case outlet(discharge) flange and expansion joint are taken apart in advance, on-the-spot 75 tons of large overhead traveling cranes need carefully axially alter out vertically to be sling afterwards, need sling exceed 5.2 meters, platform can, factory building and day height just need to consider enough high in the time of design.Directly affect the investment of user's factory building.Simultaneous type ring is generally to dismantle together with spiral case, and easily with impeller scratching and cannot field repair, returning dress affects efficiency afterwards.
3. to connect with casing be to join together closing by end plate circumferential bolt to spiral case, between end plate and casing housing, there are enough supporting steel plate proof strengths, but whole plug-in spiral case supports without outside vertical, housing thermal expansion, vibration may cause that rigidity weakens, and is unfavorable for long-time running.
Model utility content
For the problems referred to above, the purpose of this utility model is to provide a kind of large-scale horizonally split welding cantilever spiral case.This large-scale horizonally split welding cantilever worm frame is simple, and it is convenient to install and overhaul, and manufacturing difficulty is little.
To achieve these goals, the utility model is by the following technical solutions:
A kind of large-scale horizonally split welding cantilever spiral case, comprise upper volute, lower spiral case, flange and the air duct of giving vent to anger, wherein upper volute is connected by flange with lower spiral case, form volute casing, described volute casing is provided with one section of entrance vertically, described in the air duct of giving vent to anger be arranged at a side of lower spiral case and be communicated with volute casing along the tangent to periphery direction of lower spiral case.
The two ends of described lower spiral case extend radially outward and are provided with an out-of-plane, and the lower end of described out-of-plane is provided with the elastic support being connected with base.
Described flange comprises upper flange and lower flange, and described upper flange is connected on the junction surface of upper volute, and described lower flange is connected on the junction surface of lower spiral case, and described upper flange and lower flange are bolted.
The inwall of described lower spiral case is along being circumferentially with the seam for type loop mapping.On the excircle of described upper volute and lower spiral case, be evenly equipped with multiple gussets.
Each gusset on described upper volute is all vertical with the excircle of upper volute, and the each gusset on described lower spiral case is all vertical with the excircle of lower spiral case.Described one section of entrance is cylindrical shape.The described air duct of giving vent to anger is square.
Advantage of the present utility model and good effect are:
1. the utility model adopts board material splice welded structure form, solves casting spiral case castability poor, the shortcoming that the manufacturing cycle is long.
2. overall gradual change volute casing spiral case on horizontal flange, is split into upper volute and lower worm frame by the utility model, increases upper and lower face-flange, carries out handle close connection with bolt, nut.
3. the utility model increases an out-of-plane on lower flange, between spiral case and base, increases elastic support, increases spiral case rigidity, reduces the radial deformation that deadweight produces.
4. the utility model changes the complexity that overall spiral case axially lifts, assembles, the mounting type of difficulty, can first lower spiral case and associated components be connected with compressor end flange, again upper volute and parts are connected closing with lower spiral case respectively in the horizontal direction, with casing axial end flange connect.
5. the utility model changes Site for Unit running maintenance mode, only, by overhauling the associated components such as impeller under upper volute dismounting, greatly facilitates on-the-spot maintenance workload.
6. the stator component that type ring and vane diffuser etc. are arranged on spiral case provides horizonally split half structure up and down, and the assembling form of change type ring, changes and be axially assembled into radially seam location and installation mode, greatly reduces assembling difficulty, greatly improves assembly precision.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure schematic diagram of the present utility model;
Fig. 2 is decomposing schematic representation of the present utility model;
Fig. 3 is cross-sectional view of the present utility model;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is the A-A sectional view of Fig. 3;
Fig. 6 is the structural representation that single-stage cantilever compressor of the present utility model is installed;
Wherein: 1 is upper volute, 2 is lower spiral case, and 3 is the air duct of giving vent to anger, and 4 is one section of entrance, 5 is upper flange, and 6 is lower flange, and 7 is elastic support, and 8 is base, 9 is vane diffuser, and 10 is type ring, and 11 is first stage impeller, and 12 is end plate, 13 is casing, and 14 is rotor, and 15 is one section outlet, 16 is three sections of entrances, and 17 is three sections of outlets, and 18 is four sections of outlets, 19 is four sections of entrances, and 20 is second stage exit, and 21 is two sections of entrances.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model comprises upper volute 1, lower spiral case 2, flange and the air duct 3 of giving vent to anger, and wherein upper volute 1 is connected by flange with lower spiral case 2, forms volute casing.Described flange comprises upper flange 5 and lower flange 6, and described upper flange 5 is connected on the junction surface of upper volute 1, and described lower flange 6 is connected on the junction surface of lower spiral case 2, and described upper flange 5 and lower flange 6 are bolted.Described volute casing is provided with one section of entrance 4 vertically, described in the air duct 3 of giving vent to anger be arranged at a side of lower spiral case 2 and be communicated with volute casing along the tangent to periphery direction of lower spiral case 2.On the excircle of described upper volute 1 and lower spiral case 2, be evenly equipped with multiple gussets, the each gusset on described upper volute 1 is all vertical with the excircle of upper volute 1, and the each gusset on described lower spiral case 2 is all vertical with the excircle of lower spiral case 2.
As in Figure 3-5, the two ends of described lower spiral case 2 have extended radially outward an out-of-plane, and the lower end of described out-of-plane is provided with the elastic support being connected with base.Described elastic support comprises the supporting base and the strut that are threaded, adjusts the height of elastic support by rotary support bar.Described elastic support increases spiral case rigidity, reduces the radial deformation that deadweight produces.The inwall of described lower spiral case 2 is circumferentially with the seam for type loop mapping near connecting end surface edge.
As shown in Figure 6, the utility model is positioned at single-stage cantilever compressor first stage impeller place, to have formed one section of air-flow to flow into, impeller compressed action, Diffuser diffusion, volute casing rectification flow out main stator component, be to form the parts that type ring, the Diffuser etc. of runner are installed.
Embodiment
The utility model, take Q345R different-thickness steel plate as main material, adopts assembled welding technique welding to manufacture.One section entrance 4 adopts axial circular tubular, facilitates air inlet pipeline to connect, and middle supports with thickening side plate, and side plate is simultaneously for the installation of type ring and Diffuser and form diffusion runner section; One side of lower volute casing 2 is spliced into 0-360 degree gradual change square opening shape runner by 4 pressed steel plates, is welded with square plate and strengthens rigidity on different cross section; The air duct 3 of giving vent to anger flows out with tangential air-guiding.Spiral case is divided into two on horizontal center line, structurally be divided into upper volute 1 and lower spiral case 2, spiral case 1 and lower spiral case 2 cross sections are identical, be welded into upper and lower certain thickness Flange Plane, on lower semi spiral case split, be processed into 0.2/1000 inclined-plane and guarantee higher degree of finish, on flanged surface, corresponding tapped hole and the positioning pin hole opened carries out handle and closes fasteningly, strengthens volute casing armor plate strength and guarantees that again junction plane is tight, prevents Leakage Gas.Type ring 10 and vane diffuser 9 are two-piece unit structure, require upper second clamping to process to guarantee coaxial precision when processing inner chamber together simultaneously.
Installation method of the present utility model is:
When assembling, first upper second Diffuser is arranged on respectively, on lower spiral case, lower spiral case 2 is axially being bonded on lower housing end plate, then mount type ring Lower Half, type ring is located with seam, and with bolt being incorporated on lower spiral case 2, adjust half-open impeller clearance, then type ring first half level is put together on mo(u)ld bottom half ring, finally lift upper volute 1 to upper head plate relative position, first not screwde on, guarantee Vertical direction capable of regulating 2-3MM, then horizontal adjustemt and lower spiral case 2 are located, adjust the bolt in horizontal and vertical directions, finally with free state tight all bolts.In the time of maintenance, only carefully dismantle upper volute.When in factory, install at assembling and scene like this, lifting weight reduces greatly, and assembling difficulty reduces, as long as site examining and repairing hangs lower upper volute, (3-4 ton weight) can overhaul the associated components such as impeller, greatly facilitates on-the-spot maintenance workload.
It is on 2.8～4.6 ten thousand single-stage cantilever centrifugal compressor and large-scale assembly type compressor that the utility model can be widely used in inlet flow rate.
Claims (7)
1. one kind large-scale horizonally split welding cantilever spiral case, it is characterized in that: comprise upper volute (1), lower spiral case (2), flange and the air duct of giving vent to anger (3), wherein upper volute (1) is connected by flange with lower spiral case (2), form volute casing, described volute casing is provided with one section of entrance (4) vertically, described in the air duct (3) of giving vent to anger be arranged at a side of lower spiral case (2) and be communicated with volute casing along the tangent to periphery direction of lower spiral case (2); The two ends of described lower spiral case (2) extend radially outward and are provided with an out-of-plane, and the lower end of described out-of-plane is provided with the elastic support (7) being connected with base (8).
2. by large-scale horizonally split welding cantilever spiral case claimed in claim 1, it is characterized in that: described flange comprises upper flange (5) and lower flange (6), described upper flange (5) is connected on the junction surface of upper volute (1), described lower flange (6) is connected on the junction surface of lower spiral case (2), and described upper flange (5) and lower flange (6) are bolted.
3. by large-scale horizonally split welding cantilever spiral case claimed in claim 1, it is characterized in that: the inwall of described lower spiral case (2) is along being circumferentially with the seam for type loop mapping.
4. by large-scale horizonally split welding cantilever spiral case claimed in claim 1, it is characterized in that: on the excircle of described upper volute (1) and lower spiral case (2), be evenly equipped with multiple gussets.
5. by large-scale horizonally split welding cantilever spiral case claimed in claim 4, it is characterized in that: the each gusset on described upper volute (1) is all vertical with the excircle of upper volute (1), the each gusset on described lower spiral case (2) is all vertical with the excircle of lower spiral case (2).
6. by large-scale horizonally split welding cantilever spiral case claimed in claim 1, it is characterized in that: described one section of entrance (4) is cylindrical shape.
7. by large-scale horizonally split welding cantilever spiral case claimed in claim 1, it is characterized in that: described in give vent to anger air duct (3) for square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735605.6U CN203604265U (en) | 2013-11-19 | 2013-11-19 | Large horizontal partition welding cantilever volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735605.6U CN203604265U (en) | 2013-11-19 | 2013-11-19 | Large horizontal partition welding cantilever volute |
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| Publication Number | Publication Date |
|---|---|
| CN203604265U true CN203604265U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320735605.6U Expired - Lifetime CN203604265U (en) | 2013-11-19 | 2013-11-19 | Large horizontal partition welding cantilever volute |
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| Country | Link |
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| CN (1) | CN203604265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015099A (en) * | 2016-05-19 | 2016-10-12 | 武汉船用机械有限责任公司 | Spiral casing of ballast pump |
-
2013
- 2013-11-19 CN CN201320735605.6U patent/CN203604265U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015099A (en) * | 2016-05-19 | 2016-10-12 | 武汉船用机械有限责任公司 | Spiral casing of ballast pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |