CN104308476A - Method for manufacturing steam extraction device - Google Patents
Method for manufacturing steam extraction device Download PDFInfo
- Publication number
- CN104308476A CN104308476A CN201410525243.7A CN201410525243A CN104308476A CN 104308476 A CN104308476 A CN 104308476A CN 201410525243 A CN201410525243 A CN 201410525243A CN 104308476 A CN104308476 A CN 104308476A
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- CN
- China
- Prior art keywords
- extraction device
- milling
- vapor extraction
- manufacture
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
Abstract
The invention relates to a method for manufacturing a steam extraction device, which sequentially comprises the following steps: step 10: cutting the external shape of a forge piece; step 20: separating the forge piece into two parts; step 30: milling contactable surfaces, front sides, inside diameters and outer diameters of the parts; step 40: annealing the milled parts at the temperature between 550 DEG C and 650 DEG C; step 50: nitrifying the positions, for fork piece stretching and screw insertion, of the parts. By using the method for manufacturing the steam extraction device, the steam extraction device can be manufactured more easily and more efficiently at lower cost.
Description
Technical field
The present invention relates generally to a kind of method manufacturing vapor extraction device, particularly a kind of method manufacturing the vapor extraction device being used for steam turbine.
Background technology
Steam turbine can be used for for the equipment such as generator, compressor, pump provide power, and can be applicable to power plant, chemical plant, sugar refinery, textile mills, steel mill, paper mill or mine etc.Related system generally comprises: steam generator, and water is become steam by heating (such as, by coal, natural gas or fuel oil) by it; Steam turbine, the power conversion comprised in steam becomes kinetic energy to drive various equipment by it.The stator blade of presence bit on cylinder body and be positioned at epitrochanterian moving vane in steam turbine.When steam turbine operation, some levels that the high steam of expansion is alternately arranged through stator blade and moving vane make rotor turns.Pressure in steam turbine passes through stage in succession along with steam and constantly reduces.Different application scenarios also requires that steam turbine has the configuration of various steam flow, such as condensation or non-condensing steam discharge, straight-through or controlled drawing gas or controlled admission.
When condensation steam discharge, steam is discharged after by turbine blade, and is directed into condenser to convert water to, finally can turn back to steam generator.When drawing gas, steam is drawn out of from steam turbine, and is used to other occasions of the steam needing specified pressure and temperature.
Summary of the invention
The object of the present invention is to provide a kind of method manufacturing vapor extraction device, comprise the following steps successively,
Step 10: the outer shape of cutting forging;
Step 20: described forging is divided into two parts;
Step 30: part described in milling can contact surface, front side, internal diameter and external diameter;
Step 40: at the temperature between 550 DEG C to 650 DEG C, the described part through milling is annealed;
Step 50: for stretching into the position of fork and insertion screw on nitrated described part.
According to one aspect of the present invention, also have between step 20 and step 30,
Step 23: described part is annealed.
According to another aspect of the present invention, described step 30 is made up of successively following steps,
Step 31: the described of part described in milling can contact surface;
Step 32: the internal diameter of part described in milling and external diameter;
Step 33: the described front side of cutting part described in milling.
According to another aspect of the invention, the outer shape of described forging is cut by current.
According to another aspect of the present invention, in step 20, described forging is divided into two parts by Linear cut.
According to another aspect of the present invention, in step 31, can not carry out the milling of final size by contact surface when having fabrication hole to described in described part made allowance.
According to another aspect of the present invention, in the step 32, the described internal diameter of described part and external diameter are carried out with leaving surplus to the milling of final size.
The method of manufacture vapor extraction device of the present invention makes vapor extraction device to be more prone to lower cost and to manufacture more efficiently.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is the front view according to vapor extraction device of the present invention;
Fig. 2 is the schematic cross sectional views of the diameter along vapor extraction device in Fig. 1;
Fig. 3 is the flow chart according to the first embodiment of the present invention;
Fig. 4 is flow chart according to a second embodiment of the present invention;
Fig. 5 is flow chart according to the third embodiment of the invention.
Reference symbol:
The Part II of Part I 2932 slip ring of 2931 slip rings
The Part II of Part I 2942 retainer ring of 2941 retainer rings
Detailed description of the invention
In order to the technical characteristic to invention, object and effect have understanding clearly, now contrast accompanying drawing and the specific embodiment of the present invention is described, label identical in the various figures represents identical part.
In this article, " schematically " expression " serves as example, example or explanation ", not should by being described to any diagram of " schematically " in this article, embodiment is interpreted as a kind of preferred or have more the technical scheme of advantage.
For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only marked one of them.
In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
Fig. 1 and Fig. 2 schematically presents according to vapor extraction device of the present invention, and wherein vapor extraction device comprises retainer ring and slip ring.Retainer ring comprises Part I 2941 and Part II 2942.Slip ring comprises Part I 2931 and Part II 2932.As shown in Figure 3, the method for manufacture vapor extraction device of the present invention, comprises the following steps successively,
Step 10 (S10): the outer shape of cutting forging;
Step 20 (S20): described forging is divided into two parts;
Step 30 (S30): part described in milling can contact surface, front side, internal diameter and external diameter;
Step 40 (S40): at the temperature between 550 DEG C to 650 DEG C, the described part through milling is annealed;
Step 50 (S50): for stretching into the position of fork or insertion screw on nitrated described part.
When not carrying out nitrated, the hardness of part and durability can be not enough.Oxynitriding has higher mechanical robustness, hardness and lower wearability.Step 10 to 40 is identical for slip ring and retainer ring.Utilize preceding method, vapor extraction device can be more prone to lower cost and manufacture more efficiently, thus eliminates over the huge dome for drawing gas.
As shown in Figure 4, also have between step 20 and step 30, step 23 (S23): described part is annealed.If do not annealed, part deformation can be caused.
As shown in Figure 5, the method for described manufacture vapor extraction device, wherein said step 30 is made up of successively following steps,
Step 31 (S31): the described of part described in milling can contact surface;
Step 32 (S32): the internal diameter of part described in milling and external diameter;
Step 33 (S33): the described front side of cutting part described in milling.
In other embodiments, the order of these three steps can change, but aforementioned sequence is preferred.
Any one of above-mentioned three embodiments, in step 10, because current do not apply any stress to material, therefore the outer shape of forging is cut preferably by current.And in step 20, forging is divided into two parts preferably by wire cutting machine.Wire cutting machine is less destruction material in process.In addition, in step 31, can not carry out the milling of final size by contact surface when having fabrication hole to described in described part, and in the step 32 made allowance, the described internal diameter of described part and external diameter being carried out with leaving surplus to the milling of final size.
Content as described above should be considered to exemplary embodiment of the present invention.According to teaching herein; other amendment replies those skilled in the art of the present invention is apparent; and therefore, as long as this type of amendments all drop in true spirit of the present invention and scope, so described amendment just needs to be protected in protection scope of the present invention.
Claims (7)
1. manufacture a method for vapor extraction device, comprise the following steps successively,
Step 10 (S10): the outer shape of cutting forging;
Step 20 (S20): described forging is divided into two parts;
Step 30 (S30): part described in milling can contact surface, front side, internal diameter and external diameter;
Step 40 (S40): at the temperature between 550 DEG C to 650 DEG C, the described part through milling is annealed;
Step 50 (S50): for stretching into the position of fork and insertion screw on nitrated described part.
2. the method for the manufacture of vapor extraction device according to claim 1, wherein also has between step 20 and step 30,
Step 23 (S23): described part is annealed.
3. the method for manufacture vapor extraction device according to claim 1 and 2, wherein said step 30 is made up of successively following steps,
Step 31 (S31): the described of part described in milling can contact surface;
Step 32 (S32): the internal diameter of part described in milling and external diameter;
Step 33 (S33): the described front side of cutting part described in milling.
4. the method for the manufacture of vapor extraction device according to claim 1, wherein in step 10, the outer shape of described forging is cut by current.
5. the method for the manufacture of vapor extraction device according to claim 1, wherein in step 20, described forging is divided into two parts by Linear cut.
6. the method for the manufacture of vapor extraction device according to claim 3, wherein in step 31, can not carry out the milling of final size by contact surface when having fabrication hole to described in described part made allowance.
7. the method for the manufacture of vapor extraction device according to claim 3, wherein in the step 32, carries out the milling of final size with leaving surplus to the described internal diameter of described part and external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525243.7A CN104308476B (en) | 2014-04-30 | 2014-10-08 | The method manufacturing vapor extraction device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222749 | 2014-04-30 | ||
| CN2014202227496 | 2014-04-30 | ||
| CN201420222749.6 | 2014-04-30 | ||
| CN201410525243.7A CN104308476B (en) | 2014-04-30 | 2014-10-08 | The method manufacturing vapor extraction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104308476A true CN104308476A (en) | 2015-01-28 |
| CN104308476B CN104308476B (en) | 2017-01-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH483558A (en) * | 1968-11-08 | 1969-12-31 | Deutsche Edelstahlwerke Ag | Blade for condensing turbines |
| US4305311A (en) * | 1975-04-21 | 1981-12-15 | Dresser Industries, Inc. | Crankshaft construction |
| JPS59101502A (en) * | 1982-12-01 | 1984-06-12 | Hitachi Ltd | Clad sleeve for turbine rotor journal |
| US20030108384A1 (en) * | 2001-12-07 | 2003-06-12 | Visteon Global Technologies, Inc. | Polygonal interface between driving and driven components |
| JP2011255410A (en) * | 2010-06-10 | 2011-12-22 | Mitsubishi Materials Corp | Method for manufacturing annular compact |
| CN102554114A (en) * | 2012-01-06 | 2012-07-11 | 山东伊莱特重工有限公司 | Ring forging and rolling processing method of bearing ring parts used for large-scale wind turbine unit |
| CN103722351A (en) * | 2013-12-04 | 2014-04-16 | 大连洁能重工机械有限公司 | Process for machining gear main shaft of high-power wind turbine generator set |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH483558A (en) * | 1968-11-08 | 1969-12-31 | Deutsche Edelstahlwerke Ag | Blade for condensing turbines |
| US4305311A (en) * | 1975-04-21 | 1981-12-15 | Dresser Industries, Inc. | Crankshaft construction |
| JPS59101502A (en) * | 1982-12-01 | 1984-06-12 | Hitachi Ltd | Clad sleeve for turbine rotor journal |
| US20030108384A1 (en) * | 2001-12-07 | 2003-06-12 | Visteon Global Technologies, Inc. | Polygonal interface between driving and driven components |
| JP2011255410A (en) * | 2010-06-10 | 2011-12-22 | Mitsubishi Materials Corp | Method for manufacturing annular compact |
| CN102554114A (en) * | 2012-01-06 | 2012-07-11 | 山东伊莱特重工有限公司 | Ring forging and rolling processing method of bearing ring parts used for large-scale wind turbine unit |
| CN103722351A (en) * | 2013-12-04 | 2014-04-16 | 大连洁能重工机械有限公司 | Process for machining gear main shaft of high-power wind turbine generator set |
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Effective date of registration: 20211203 Address after: Munich, Germany Patentee after: Siemens Energy International Address before: Munich, Germany Patentee before: SIEMENS AG |