CN106545523A - Prevent the end cover structure and processing method of vertical subdivision compressor operating gas leakage - Google Patents
Prevent the end cover structure and processing method of vertical subdivision compressor operating gas leakage Download PDFInfo
- Publication number
- CN106545523A CN106545523A CN201610967003.1A CN201610967003A CN106545523A CN 106545523 A CN106545523 A CN 106545523A CN 201610967003 A CN201610967003 A CN 201610967003A CN 106545523 A CN106545523 A CN 106545523A
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- China
- Prior art keywords
- end cover
- hole
- dry gas
- air inlet
- compressor operating
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Classifications
-
- 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
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of end cover structure for preventing vertical subdivision compressor operating gas leakage, including end cover body, it is arranged on air inlet in the end cover body, connecting hole and dry gas seals hole, the air inlet is connected with described connecting hole one end, the connecting hole other end is connected with the dry gas seals hole, the dry gas seals hole connection dry gas seals area.The invention also discloses the processing method for preventing the end cover structure of vertical subdivision compressor operating gas leakage, and the compressor of the end cover structure of vertical subdivision compressor operating gas leakage is prevented including this.The end cover structure and its processing method that prevent vertical subdivision compressor operating gas leakage that the present invention is provided, the phenomenon that can prevent the working media in compressor from revealing from the connecting hole of the end cover structure for preventing vertical subdivision compressor operating gas leakage, and prevent vertical subdivision compressor operating gas leakage end cover structure it is high in machining efficiency, processing cost is low.
Description
Technical field
The present invention relates to centrifugal compressor technical field, more particularly to a kind of compressor, vertical subdivision compressor is prevented
End cover structure and its processing method that working gas is revealed.
Background technology
Centrifugal compressor is a kind of rotating vanes machinery.In centrifugal compressor, gas is along perpendicular to pressure
What the radial direction of contracting arbor was run, the raising of gas pressure is reaching using blade and gas phase interaction.
Centrifugal compressor occupies an important position in national economy.It is particularly defeated in metallurgy, petrochemical industry, natural gas
Send, freeze and the industrial department such as power is obtained and extensively applied.
The one kind of vertical subdivision compressor for centrifugal compressor, it is by end cap, casing, dividing plate, rotor, sealing etc. zero
Part is constituted, and can carry out the compression of larger pressed gas.Wherein end cap is the important component part of vertical subdivision compressor, its work
With being allowed to spill from compressor shaft to two ends to block the gas in casing, so that gas can only be by the air outlet for designing
Discharge.
In the real work of compressor, present end cover structure Jing often occurs what dielectric gas was revealed from welding plug position
Situation, particularly after poisonous, inflammable and explosive dielectric gas occurs to reveal, can cause huge hidden danger to personal safety as well as the property safety.
The content of the invention
The technical problem to be solved is to provide one kind can prevent working media gas from revealing within the compressor
The end cover structure and its processing method that prevent vertical subdivision compressor operating gas leakage.
To solve above-mentioned technical problem, the invention provides a kind of end for preventing vertical subdivision compressor operating gas leakage
Lid structure, including end cover body, are arranged on air inlet in the end cover body, connecting hole and dry gas seals hole, the air inlet
Hole is connected with described connecting hole one end, and the connecting hole other end is connected with the dry gas seals hole, the dry gas seals
Hole connection dry gas seals area.
Further, the connecting hole is the internal holes for being arranged on the end cap body interior.
Further, the air inlet and the dry gas seals hole are straight hole and/or the angling hole for inclination certain angle.
Further, the air inlet and the aperture in the dry gas seals hole are 15mm, 20mm, 25mm or 30mm.
The present invention also provides a kind of processing of the described end cover structure for preventing vertical subdivision compressor operating gas leakage
Method, comprises the steps：
Processing end cover body；
Dry gas seals area is processed in the end cover body；
Using drilling machining method in the end cover body processing gas inlet hole and dry gas seals hole；
Connecting hole is processed by internal Bend Hole Machining special purpose device on sinking EDM lathe.
Further, the processing method in the air inlet and dry gas seals hole is to press the end cap master using numerical control borer
Body benchmark beats table centering, and drilling air inlet and dry gas are close respectively in end cover body to install prolongation milling head cooperation lengthening spiral bit
Sealing of hole is to drawing requirement size.
Further, the aperture in the air inlet and dry gas seals hole is worked into 15mm, 20mm, 25mm or 30mm.
Further, the hole tolerance in the air inlet and dry gas seals hole is controlled in ± 0.1mm.
Further, the processing method of the connecting hole is：The end cover body in hole and dry gas seals hole will be processed into
On sinking EDM lathe, the steel band being connected with sinking EDM machine tool motion axle is added clamping in spark-erosion sinking
Move under the control of work lathe, drive the electrode of the inside Bend Hole Machining special purpose device being connected with steel band to add from internal bent hole
The positioning shaft sleeve of work special purpose device is stretched in the air inlet of end cover body, the air inlet in end cover body and dry gas seals hole it
Between blind area in process connecting hole.
Present invention also offers a kind of compressor, including the described end for preventing vertical subdivision compressor operating gas leakage
Lid structure, the end cover structure for preventing vertical subdivision compressor operating gas leakage include end cover body, are arranged on the end
Air inlet, connecting hole and dry gas seals hole in lid main body, the air inlet are connected with described connecting hole one end, the connection
The hole other end is connected with the dry gas seals hole, the dry gas seals hole connection dry gas seals area.
The end cover structure for preventing vertical subdivision compressor operating gas leakage that the present invention is provided, its connecting hole are only connected to
Between air inlet and dry gas seals hole, do not have with the outside of the end cover structure main body for preventing vertical subdivision compressor operating gas leakage
There is a directly connection, therefore be not in the problem that the working media in compressor is revealed from connecting hole, not only thoroughly prevented to leak
The generation of gas phenomenon, while also improving the attractive in appearance of the end cover structure entirety for preventing vertical subdivision compressor operating gas leakage
Property.The present invention provides the end cover structure processing method for preventing vertical subdivision compressor operating gas leakage, using spark-erosion sinking
The inside Bend Hole Machining special purpose device of machining tool and development completes the connecting hole between air inlet and dry gas seals hole holes
Connection processing, and reach target call.This processing mode course of processing is few, and difficulty of processing is low, and required time is short, efficiency
Height, improves working (machining) efficiency.Also, in terms of manufacturing cost, using sinking EDM lathe and the inside developed bending
Hole machined special purpose device processes connecting hole, than the purely mechanic processing auxiliary process hole of traditional structure, can reduce the processing in hole
Difficulty, reduces processing cost, such that it is able to reduce the manufacturing cost of compressor.
Description of the drawings
Fig. 1 is the structure of the end cover structure for preventing vertical subdivision compressor operating gas leakage provided in an embodiment of the present invention
Schematic diagram.
Fig. 2 is the end cover structure processing side for preventing vertical subdivision compressor operating gas leakage provided in an embodiment of the present invention
The structural representation of internal Bend Hole Machining device in method.
Specific embodiment
Referring to Fig. 1, a kind of end cap for preventing vertical subdivision compressor operating gas leakage provided in an embodiment of the present invention is tied
Structure, including end cover body 21, are arranged on air inlet 22 in end cover body 21, connecting hole 23 and dry gas seals hole 24, air inlet
22 are connected with 23 one end of connecting hole, and the other end of connecting hole 23 is connected with dry gas seals hole 24, and dry gas seals hole 24 connects
Dry gas seals area 25.
Wherein, connecting hole 23 is provided in the internal holes inside end cap body 21, is connected to air inlet 22 and dry gas seals
Between hole 24, working gas can be avoided from connecting hole 23 to 21 outward leakage of end cap body.
Wherein, in order to air inlet 22 and dry gas seals hole 24 can be machined by traditional mechanical, processing cost is reduced,
Air inlet 22 is straight hole with dry gas seals hole 24.Air inlet 22 and dry gas seals hole 24 can all be the end with end cover body 21
The parallel straight hole in face, or be all the inclined straight hole angled with the end face of end cover body 21, or air inlet 22 with
24 two, dry gas seals hole Kong Zhongyi is the straight hole parallel to 21 end face of end cover body, and another is and 21 end face of end cover body
Angled inclined straight hole.Air inlet 22 is 15mm, 20mm, 25mm with the aperture standard convention in dry gas seals hole 24
Or tetra- kinds of 30mm, also it is not excluded for certainly specific other aperture sizes under special operation condition requirement.Air inlet 22 and dry gas seals hole 24
Depending on size of the length in both holes according to end cover body 21.The aperture of connecting hole 23 is generally with the aperture equal to air inlet 22
Size is advisable, and the aperture of connecting hole 23 is the smaller the better, so facilitates the processing of connecting hole 23, reduces processing cost.As this
A kind of bright specific embodiment, in order to shorten the length of connecting hole 23 to greatest extent, the air inlet 22 of the present embodiment with it is dry
Airtight sealing of hole 24 is the inclined straight hole angled with the end face of end cover body 21, so can ensure that air inlet 22 with
23 length of connecting hole between dry gas seals hole 24 is as short as possible, so as to facilitate the processing of connecting hole 23, reduces processing cost..
The processing method of the end cover structure for preventing vertical subdivision compressor operating gas leakage that the present invention is provided, including such as
Lower step：
End cover body 21 is processed, is comprised the steps：First using commonly vertical 21 each portion of car roughing end cover body, and stay
The surplus of 5mm, in order to adjust the mechanical strength of end cover body 21, then carries out heat treatment to end cover body 21, if end cap master
The material that body 21 is adopted is No. 20 steel, then carry out heat treatment using the operation of 890 DEG C of normalizing, 640 DEG C of tempering, if end cap master
The material that body 21 is adopted is KMN steel, then carry out hot place using the tempering process of 980 DEG C of normalizing, 970 DEG C of quenching and 680 DEG C
Reason, process above have been effectively ensured the mechanical strength of end cap theme.Finishing is carried out to end cover body 21 using numerical control vertical lathe finally
Work：1st, milling：The space that bearing split, centering plane and common vertical car cannot be processed is processed by milling machine；2nd, boring：
By the various screwed holes of Boring machine processing bearing split；3rd, car：By lathe by the cylindrical of end cover body 21, end face, endoporus
Time processing is finished；4th, boring：The various holes of end cover body 21 and groove time processing are finished by boring machine.
After end cover body 21 is processed, then dry gas seals area 25 is processed in end cover body 21, using numerical control vertical lathe, by end
The benchmark of lid main body 21 plays surface centering workpiece, finds zero point accurately, by zero point to knife, finds out the original position of processing, in numerical control lathe
The program of tool feeding is input on bed, each groove time processing of 25 different-diameter of dry gas seals area is finished.
Coordinated using prolongation milling head or Universal milling head on numerical control borer again and lengthen fluted drill processing gas inlet hole 22 and dry gas
Sealing hole 24, plays surface centering workpiece by the benchmark of end cover body 21 using numerical control borer, installs Universal milling head and coordinates lengthening fiber crops
Flower drill bit drilling air inlet 22 is to drawing dimensional requirement.Surface centering work is beaten by the benchmark of end cover body 21 using numerical control borer
Part, installs and extends milling head cooperation lengthening spiral bit drilling dry gas seals hole 24 to drawing dimensional requirement.Wherein, 22 He of air inlet
The diameter of the 24 liang of stomidiums in dry gas seals hole forms standard specificationss, is such as processed into a diameter of 15mm, 20mm, 25mm, 30mm etc., this
The diameter structure of sample is beneficial to the standardized designs for being curved processing special purpose device.Also, by air inlet 22 and dry gas seals
The hole tolerance in hole 24 is controlled in ± 0.1mm.
Finally, connecting hole 23 is processed by internal Bend Hole Machining special purpose device on sinking EDM lathe.It is interior
Portion's Bend Hole Machining special purpose device is arranged on sinking EDM lathe, and 21 clamping of end cover body is in sinking EDM
On lathe.Referring to Fig. 2, internal Bend Hole Machining special purpose device includes clamping tooling 11, positioning shaft sleeve 12, electrode 13 and steel band,
, for positioning shaft sleeve 12 to be fixed on the air inlet 22 of end cover body 21, positioning shaft sleeve 12 is for electrode 13 for clamping tooling 11
The direction of motion positioned, and electrode 12 is shielded.Steel band one end is connected to the fortune of sinking EDM lathe
On moving axis, the other end of steel band is connected with electrode 13.Electrode 13 is stretched in positioning shaft sleeve 12 from positioning shaft sleeve 12, spark-erosion sinking
Drive steel band operation, steel strip driving electrode 13 to move when machining tool works, make electrode 13 end cap master be stretched into from positioning shaft sleeve 12
In 21 enterprising pore 22 of body, so as to process in the blind area between the air inlet 22 in end cover body 21 and dry gas seals hole 24
Connecting hole 23.Due to sinking EDM lathe drive steel band produce move up and down and the anglec of rotation on operation change, from
And make strip steel move up and down in edm process with moving electrode 13 and the anglec of rotation change, adjustment electrode 13 from air inlet
Move to blind area in hole 22, so as to process connecting hole 23 in blind area, until 24 insertion of air inlet 22 and dry gas seals hole.Electrode
13 end is respectively communicated with lead channel 14 and liquid outlet groove 15, and electrode machining liquid can be flowed into along lead channel 14 and need to process place,
Meanwhile, used electrode machining liquid also can be flowed out from liquid outlet groove 15 in the presence of extruding force, so as to play a part of chip removal.It is logical
The working fluid for constantly updating machining area is crossed, and under the electric spark effect that electrode 13 is produced, connecting hole may finally be completed
23 processing.
Present invention also offers a kind of compressor, including casing, dividing plate, rotor, sealing and described prevent vertical subdivision
The end cover structure of compressor operating gas leakage, this prevents the concrete of the end cover structure of vertical subdivision compressor operating gas leakage
Structure, has as this multistage pump employs whole technical schemes of above-mentioned all embodiments therefore at least with reference to above-described embodiment
All beneficial effects that the technical scheme for having above-described embodiment is brought, this is no longer going to repeat them.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, which all should be covered
In the middle of scope of the presently claimed invention.
Claims (9)
1. a kind of end cover structure for preventing vertical subdivision compressor operating gas leakage, it is characterised in that：Including end cover body, if
Air inlet in the end cover body, connecting hole and dry gas seals hole are put, the air inlet is connected with described connecting hole one end
Logical, the connecting hole other end is connected with the dry gas seals hole, the dry gas seals hole connection dry gas seals area.
2. the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 1, it is characterised in that：
The connecting hole is the internal holes for being arranged on the end cap body interior.
3. the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 1, it is characterised in that：
The air inlet is straight hole and/or the angling hole for inclination certain angle with the dry gas seals hole.
4. the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 3, it is characterised in that：
The air inlet is 15mm, 20mm, 25mm or 30mm with the aperture in the dry gas seals hole.
5. the processing method of the end cover structure for preventing vertical subdivision compressor operating gas leakage described in a kind of claim 1,
Characterized in that, comprising the steps：
Processing end cover body；
Dry gas seals area is processed in the end cover body；
Using drilling machining method in the end cover body processing gas inlet hole and dry gas seals hole；
Connecting hole is processed by internal Bend Hole Machining special purpose device on sinking EDM lathe.
6. the processing method of the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 5,
Characterized in that, the processing method in the air inlet and dry gas seals hole is, the end cover body benchmark is pressed using numerical control borer
Table centering is beaten, and is installed to extend milling head and coordinate and is lengthened spiral bit and drilling air inlet and dry gas seals hole are distinguished extremely in end cover body
Drawing requirement size.
7. the processing method of the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 6,
Characterized in that, the aperture in the air inlet and dry gas seals hole is worked into 15mm, 20mm, 25mm or 30mm.
8. the processing method of the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 7,
Characterized in that, the hole tolerance in the air inlet and dry gas seals hole is controlled in ± 0.1mm.
9. the processing method of the end cover structure for preventing vertical subdivision compressor operating gas leakage according to claim 8,
Characterized in that, the processing method of the connecting hole is：The end cover body clamping for processing into hole and dry gas seals hole is existed
On sinking EDM lathe, the steel band being connected with sinking EDM machine tool motion axle is in sinking EDM lathe
Control under move, drive the electrode of inside Bend Hole Machining special purpose device being connected with steel band special from internal Bend Hole Machining
The positioning shaft sleeve of device is stretched in the air inlet of end cover body, blind between the air inlet in end cover body and dry gas seals hole
Connecting hole is processed in area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610967003.1A CN106545523B (en) | 2016-10-28 | 2016-10-28 | Prevent the end cover structure and processing method of vertical subdivision compressor operating gas leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610967003.1A CN106545523B (en) | 2016-10-28 | 2016-10-28 | Prevent the end cover structure and processing method of vertical subdivision compressor operating gas leakage |
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| Publication Number | Publication Date |
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| CN106545523A true CN106545523A (en) | 2017-03-29 |
| CN106545523B CN106545523B (en) | 2019-05-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026740A (en) * | 2019-04-25 | 2019-07-19 | 沈阳透平机械股份有限公司 | A kind of processing method with end cover suitable for centrifugal compressor |
| CN110153650A (en) * | 2019-04-30 | 2019-08-23 | 沈阳透平机械股份有限公司 | The processing method of the saddle-shaped groove blade seat of large-scale axial flow type compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026740A (en) * | 2019-04-25 | 2019-07-19 | 沈阳透平机械股份有限公司 | A kind of processing method with end cover suitable for centrifugal compressor |
| CN110153650A (en) * | 2019-04-30 | 2019-08-23 | 沈阳透平机械股份有限公司 | The processing method of the saddle-shaped groove blade seat of large-scale axial flow type compressor |
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| Publication number | Publication date |
|---|---|
| CN106545523B (en) | 2019-05-31 |
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