CN109441882A - Centrifugal-compressor welding shell and centrifugal compressor - Google Patents
Centrifugal-compressor welding shell and centrifugal compressor Download PDFInfo
- Publication number
- CN109441882A CN109441882A CN201811069789.0A CN201811069789A CN109441882A CN 109441882 A CN109441882 A CN 109441882A CN 201811069789 A CN201811069789 A CN 201811069789A CN 109441882 A CN109441882 A CN 109441882A
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- plate
- centrifugal
- compressor
- stainless steel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of centrifugal-compressor welding shell and centrifugal compressors, are related to Compressor Technology field, and main purpose is to improve the anti-corrosion effect of welding casing, and reduce manufacturing cost.Main technical schemes of the invention are as follows: the centrifugal-compressor welding shell includes casing ontology, support ring, deflector and flow distribution plate are provided in the casing ontology, the support ring, the deflector and the flow distribution plate are respectively stainless steel forgings, and the casing ontology is low-alloy steel ontology；Liner plate, the liner plate includes multiple plates, each plate is stainless steel plate, multiple plates include multiple plates in plane and multiple plates in curved surface, multiple plates are welded to connect in the inner surface corresponding position of the casing ontology with being adapted respectively, and the two neighboring plate interspace is welded to connect and rounding off.Present invention is mainly used for the anti-corrosion effects for improving welding casing.
Description
Technical field
The present invention relates to Compressor Technology fields, press in particular to a kind of centrifugal-compressor welding shell and centrifugation
Contracting machine.
Background technique
The corrosive gas media such as ethylene glycol, esterification recycle hydrogen are increased in the manufacturing field of centrifugal compressor in succession
Product type, this requires the manufacture of the anti-corrosion of centrifugal-compressor welding shell higher and higher.
Currently, the antiseptic property in order to guarantee centrifugal-compressor welding shell, is usually adopted as entirety for compressor case
Cast structure, however, this kind of monoblock cast casing is also easy to produce casting sand hole and casting crack during processing is with the water pressure test
Etc. latent defects, anti-corrosion effect is poor, moreover, Repair must be carried out to these latent defects in time, it is longer to reprocess the period, system
Make higher cost.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of centrifugal-compressor welding shell and centrifugal compressor, main purpose
It is to improve the anti-corrosion effect of welding casing, and reduce manufacturing cost.
In order to achieve the above objectives, present invention generally provides following technical solutions:
On the one hand, the embodiment of the invention provides a kind of centrifugal-compressor welding shells, comprising:
Casing ontology, is provided with support ring, deflector and flow distribution plate in the casing ontology, and the support ring described is led
Flowing plate and the flow distribution plate are respectively stainless steel forgings, and the casing ontology is low-alloy steel ontology；
Liner plate, the liner plate include multiple plates, and each plate is stainless steel plate, and multiple plates include more
A plate and multiple plates in curved surface in plane, multiple plates are welded to connect in the casing sheet with being adapted respectively
The inner surface corresponding position of body, the two neighboring plate interspace is welded to connect and rounding off.
Further, each plate with a thickness of 3mm；
Gap between the two neighboring plate is 10-20mm；
Array is disposed with multiple plug welding holes, the inner surface of each plate and the casing ontology on each plate
Plug welding connection.
Further, the diameter of the plug welding hole is 15mm, and the distance between two neighboring described plug welding hole is less than or waits
In 100mm, the distance between two neighboring described plug welding hole on diagonal line is less than or equal to 150mm.
Further, the casing ontology includes end plate, horizontal flange and air duct flange interconnected, the end plate,
The horizontal flange and the air duct flange all have machining allowance side；
The machining allowance side of the liner plate and the end plate, the horizontal flange and the air duct flange is using unilateral groove
It is welded to connect with the welding structure of U-shaped groove.
Further, the casing ontology includes that thrust seal and support seal, the thrust positioned opposite are close
Part of the support seal in the casing ontology is stainless steel parts described in Feng Tihe.
Further, the stainless steel parts are integrally annular in shape, and the outer wall of the stainless steel parts includes anchor ring, described
The cross sectional shape of anchor ring is the camber line of indent, and the anchor ring is towards the flow passage side in the casing ontology.
Further, the stainless steel forgings are 304 stainless steel forgings；
The low-alloy steel ontology is Q345R steel ontology or 16Mn steel ontology.
On the other hand, the embodiment of the present invention also provides a kind of centrifugal compressor, including centrifugal compressor bonding machine above-mentioned
Shell.
By above-mentioned technical proposal, the present invention is at least had the advantages that
Technical solution provided in an embodiment of the present invention, by support ring, the deflector that will constitute casing ontology inner flow passage
Stainless steel forgings are set as with components such as flow distribution plates, moreover, the inner surface in casing ontology is inlayed by the spelling of muti-piece stainless steel plate
Stainless steel liner plate made of connecing, it is ensured that the wetted surfaces in casing ontology are stainless steel anti-corrosion material, thus improve from
The anti-corrosion effect of heart compressor welding casing, and there is no interior defect again, it avoids reprocessing, reduces manufacturing cost；Meanwhile it serving as a contrast
Plate is welded in the phase of casing ontology inner surface by multiple plane plates and curved surface plate with being adapted by the way of gap weldig
Position is answered, the molding and splicing welding operation of each plate is not only contributed to, also helps the patch of liner plate Yu casing ontology inner wall
Clothes connection；In addition, ensure that each plate and casing sheet by the way that two neighboring plate is carried out gap weldig and rounding off
The inner wall firm welding of body, in turn ensures firm welding between adjacent plate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the upper housing of centrifugal-compressor welding shell provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the lower case of centrifugal-compressor welding shell provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the plate of liner plate in Fig. 1 or Fig. 2；
Fig. 4 is the knot of the machining allowance side welding groove of liner plate and end plate, horizontal flange and air duct flange in Fig. 1 or Fig. 2
Structure schematic diagram；
Fig. 5 is to support seal or thrust seal in the structural schematic diagram of casing ontology inner part in Fig. 1 or Fig. 2.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or
Similar label indicates same or similar element or element with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of description the present embodiment and simplifies description, rather than indication or suggestion meaning
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present embodiment
The limitation of protection scope.
As depicted in figs. 1 and 2, the embodiment of the invention provides a kind of centrifugal-compressor welding shells, including casing ontology
1, support ring 11, deflector 12 and flow distribution plate 13 are provided in the casing ontology 1, the support ring 11, deflector 12 and flow distribution plate
13 be respectively stainless steel forgings, and casing ontology 1 is low-alloy steel ontology；Liner plate 2, the liner plate 2 include multiple plates, each plate
For stainless steel plate, multiple plates include multiple plates in plane and multiple plates in curved surface, and multiple plates are mutually fitted respectively
It is welded to connect with ground in the inner surface corresponding position of casing ontology 1, two neighboring plate interspace is welded to connect and rounding off.
In the centrifugal-compressor welding shell, casing ontology 1 can be interconnected to constitute by upper housing and lower case, master
It to include the pressure-containing members such as horizontal flange, support blanket gas, thrust seal, end plate, Shell Plate and air inlet and outlet cylinder component, institute
The casing ontology 1 stated is low-alloy ontology, and the main pressure-containing member that can be construed to casing ontology 1 can use low-alloy
Steel is made, and is welded to connect, to improve the integral strength of the welding casing.And constitute the branch of 1 inner flow passage of casing ontology
The inner bodies such as pushing out ring 11, deflector 12, flow distribution plate 13 are made of stainless steel material, moreover, in the inner surface of casing ontology 1
Soldering stainless steel liner plate 2 using different steel weld and inlays the combination of stainless steel anti-corrosion liner plate 2 and meets bonding machine
The special requirement for anticorrosion of shell improves the anti-corrosion effect of centrifugal-compressor welding shell, meanwhile, add in stainless steel support ring 11
The assembly seam allowance of work assemble in diaphragm, it is ensured that 11 outer surface of welding casing support ring is still not with processing rear bulkhead assembly seam allowance
Become rusty steel anti-corrosion material, meets the wetted surfaces requirement for anticorrosion of welding casing.In addition, being adopted between each plate of composition liner plate 2
With gap weldig, and gap width can be 10-20mm, and pass through the intensity weld seam rounding off of stainless steel, can not only protect
The each plate and casing ontology 1 for demonstrate,proving liner plate 2 being capable of firm weldings, it can also be ensured that being capable of firm welding between each plate.
Centrifugal-compressor welding shell provided in an embodiment of the present invention, by the way that the support of casing ontology inner flow passage will be constituted
The components such as ring, deflector and flow distribution plate are set as stainless steel forgings, moreover, casing ontology inner surface inlay it is stainless by muti-piece
The stainless steel liner plate that steel plate block is spliced, it is ensured that the wetted surfaces in casing ontology are stainless steel anti-corrosion material, thus
Improve the anti-corrosion effect of centrifugal-compressor welding shell, and there is no interior defect again, avoid reprocessing, reduce manufacture at
This；Meanwhile liner plate is welded in casing ontology with being adapted by the way of gap weldig by multiple plane plates and curved surface plate
The corresponding position of inner surface not only contributes to the molding and splicing welding operation of each plate, also helps liner plate and casing sheet
The docile connection of internal wall；In addition, ensure that each plate by the way that two neighboring plate is carried out gap weldig and rounding off
The inner wall firm welding of block and casing ontology, in turn ensures firm welding between adjacent plate.
Wherein, the thickness of each plate can be 3mm, i.e., 2 thickness of liner plate that each stainless steel plate is spliced can be with
For 3mm, itself have certain rigidity requirement and antifatigue impact requirement to meet stainless steel liner plate 2.In addition, referring to Fig. 3, and
Multiple plug welding holes 21 can be disposed on each plate with array combined with Figure 1 and Figure 2, so that each plate and casing ontology 1 is interior
Surface can be welded to connect using plug welding mode.Meanwhile the diameter of plug welding hole 21 can be 15mm, two neighboring plug welding hole
The distance between 21 can be less than or equal to 100mm, and the distance between two neighboring plug welding hole 21 on diagonal line can be with
Less than or equal to 150mm, to further improve the weld strength of liner plate 2 Yu 1 inner surface of casing ontology.Wherein, for each
The edge weld and 2 weld seam of liner plate of a plate can carry out 100% dye penetrant inspection and be checked, to ensure liner plate 2 and casing
The welding quality of ontology 1.Based on this, liner plate 2 above-mentioned not only contributes to each plate using the structure type of piecemeal splicing
Molding is operated with splicing, welding, also helps the arrangement for refining each plate plug welding hole 21.
Specifically, referring to Fig. 1, Fig. 2 and Fig. 4, casing ontology 1 may include end plate 14 interconnected, horizontal flange 15
With air duct flange 16, the end plate 14, horizontal flange 15 and air duct flange 16 all have machining allowance side；Liner plate 2 and end plate 14, water
It is welded using the welding structure of unilateral groove 151 and U-shaped groove 161 the machining allowance side of plane face flange 15 and air duct flange 16
Connection to realize the welding quality that can either guarantee that liner plate 2 and casing you can well imagine, and can guarantee 1 inner flow passage of casing ontology
With the presentation quality of stainless steel liner plate 2.Wherein, the size of unilateral groove 151 and U-shaped groove 161 can be 20X45 °.
Specifically, referring to Fig. 1, Fig. 2 and Fig. 5, casing ontology 1 may include thrust seal 17 and support positioned opposite
Seal 18, the part of the thrust seal 17 and support seal 18 in casing ontology 1 is stainless steel parts 171.Due to
Thrust seal 17 and support seal 18 a part be located in 1 inner flow passage of casing ontology, by by the part by stainless
Steel is made, and further improves the antiseptic property of the welding casing, and specifically, which is made of 304 stainless steels.
Wherein, it is located at the stainless steel in casing ontology 1 referring to Fig. 5, thrust seal 17 above-mentioned and support seal 18
Part 171 is whole can be annular in shape, and the outer wall of the stainless steel parts 171 may include anchor ring 1711, which cuts
Face shape can be the camber line of indent, and the anchor ring 1711 is towards the flow passage side in the casing ontology 1.By by the stainless steel
Part 171 is designed as the polymorphic structure that outer wall includes the concave arc anchor ring that cross sectional shape is indent camber line, so that the stainless steel
Flow passage side of the part 171 in casing ontology 1 is presented as form that is axial and being radially arc structure, ensure that casing sheet
Gas flow in body 1 is round and smooth without hindrance, improves the pneumatic effect of gas medium.Specifically, the stainless steel parts 171 and casing
Ontology 1 carries out different steel weld, and the stainless steel parts 171 can issue X45 ° of (a+20) on machining allowance (a) surface
Welding groove, to guarantee that the stainless steel parts 171 and casing ontology 1 are welded and removed after machining allowance still for stainless steel preserving timber
Material.
Specifically, support ring 11, deflector 12 and the flow distribution plate 13 for constituting 1 inner flow passage of casing ontology all can be 304
Stainless steel forgings；And constitute the horizontal flange 15 of casing ontology 1, support seal 18, thrust seal 17, end plate 14, shell
The pressure-containing members such as plate and air inlet and outlet cylinder component all can be Q345R steel or 16Mn steel.
The embodiment of the invention also provides a kind of centrifugal compressors, including centrifugal-compressor welding shell above-mentioned.
Centrifugal compressor provided in an embodiment of the present invention, including centrifugal-compressor welding shell, the welding casing pass through by
It constitutes the components such as support ring, deflector and the flow distribution plate of casing ontology inner flow passage and is set as stainless steel forgings, moreover, in casing
The inner surface of ontology inlays the stainless steel liner plate being spliced by muti-piece stainless steel plate, it is ensured that the mistake flow table in casing ontology
Face is stainless steel anti-corrosion material, to improve the anti-corrosion effect of centrifugal-compressor welding shell, and is lacked again there is no interior
It falls into, avoids reprocessing, reduce manufacturing cost；Meanwhile liner plate is used the side of gap weldig by multiple plane plates and curved surface plate
Formula is welded in the corresponding position of casing ontology inner surface with being adapted, and not only contributes to molding and the splicing welding behaviour of each plate
Make, also helps liner plate and connect with the docile of casing ontology inner wall；In addition, by by two neighboring plate carry out gap weldig and
Rounding off ensure that the inner wall firm welding of each plate and casing ontology, in turn ensure and weld jail between adjacent plate
Gu.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of centrifugal-compressor welding shell characterized by comprising
Casing ontology is provided with support ring, deflector and flow distribution plate, the support ring, the deflector in the casing ontology
It is respectively stainless steel forgings with the flow distribution plate, the casing ontology is low-alloy steel ontology；
Liner plate, the liner plate include multiple plates, and each plate is stainless steel plate, and multiple plates, which include multiple, is in
The plate of plane and multiple plates in curved surface, multiple plates are welded to connect in the casing ontology with being adapted respectively
Inner surface corresponding position, the two neighboring plate interspace is welded to connect and rounding off.
2. centrifugal-compressor welding shell as described in claim 1, which is characterized in that
Each plate with a thickness of 3mm；
Gap between the two neighboring plate is 10-20mm；
Array is disposed with multiple plug welding holes, the inner surface plug welding of each plate and the casing ontology on each plate
Connection.
3. centrifugal-compressor welding shell as claimed in claim 2, which is characterized in that
The diameter of the plug welding hole be 15mm, the distance between two neighboring described plug welding hole be less than or equal to 100mm, in pair
The distance between two neighboring described plug welding hole on linea angulata is less than or equal to 150mm.
4. centrifugal-compressor welding shell as described in claim 1, which is characterized in that
The casing ontology includes end plate, horizontal flange and air duct flange interconnected, the end plate, the horizontal flange and
The air duct flange all has machining allowance side；
The machining allowance side of the liner plate and the end plate, the horizontal flange and the air duct flange is using unilateral groove and U
The welding structure of shape groove is welded to connect.
5. centrifugal-compressor welding shell as described in claim 1, which is characterized in that
The casing ontology includes thrust seal and support seal, the thrust seal and the support positioned opposite
Part of the seal in the casing ontology is stainless steel parts.
6. centrifugal-compressor welding shell as claimed in claim 5, which is characterized in that
The stainless steel parts are integrally annular in shape, and the outer wall of the stainless steel parts includes anchor ring, the section shape of the anchor ring
Shape is the camber line of indent, and the anchor ring is towards the flow passage side in the casing ontology.
7. centrifugal-compressor welding shell as described in claim 1, which is characterized in that
The stainless steel forgings are 304 stainless steel forgings；
The low-alloy steel ontology is Q345R steel ontology or 16Mn steel ontology.
8. a kind of centrifugal compressor characterized by comprising
Centrifugal-compressor welding shell as described in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069789.0A CN109441882A (en) | 2018-09-13 | 2018-09-13 | Centrifugal-compressor welding shell and centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069789.0A CN109441882A (en) | 2018-09-13 | 2018-09-13 | Centrifugal-compressor welding shell and centrifugal compressor |
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| Publication Number | Publication Date |
|---|---|
| CN109441882A true CN109441882A (en) | 2019-03-08 |
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ID=65530410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811069789.0A Pending CN109441882A (en) | 2018-09-13 | 2018-09-13 | Centrifugal-compressor welding shell and centrifugal compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110188411A (en) * | 2019-05-10 | 2019-08-30 | 沈阳透平机械股份有限公司 | Design, the processing method of centrifugal compressor welded end plate |
| CN110319058A (en) * | 2019-08-20 | 2019-10-11 | 西安陕鼓动力股份有限公司 | Compressor welding casing and compressor |
| CN112453736A (en) * | 2020-10-27 | 2021-03-09 | 沈阳透平机械股份有限公司 | Welding method for MCL centrifugal compressor welding shell |
| CN113751907A (en) * | 2021-08-27 | 2021-12-07 | 沈阳透平机械股份有限公司 | Welding method for controlling bending deformation of DMCL welding machine shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110188411A (en) * | 2019-05-10 | 2019-08-30 | 沈阳透平机械股份有限公司 | Design, the processing method of centrifugal compressor welded end plate |
| CN110188411B (en) * | 2019-05-10 | 2023-01-13 | 沈阳透平机械股份有限公司 | Design and processing method of centrifugal compressor welding end plate |
| CN110319058A (en) * | 2019-08-20 | 2019-10-11 | 西安陕鼓动力股份有限公司 | Compressor welding casing and compressor |
| CN112453736A (en) * | 2020-10-27 | 2021-03-09 | 沈阳透平机械股份有限公司 | Welding method for MCL centrifugal compressor welding shell |
| CN113751907A (en) * | 2021-08-27 | 2021-12-07 | 沈阳透平机械股份有限公司 | Welding method for controlling bending deformation of DMCL welding machine shell |
| CN113751907B (en) * | 2021-08-27 | 2022-10-14 | 沈阳透平机械股份有限公司 | Welding method for controlling bending deformation of DMCL welding enclosure |
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