CN102384071B - High-pressure air cylinder chamber seal structure of reciprocating type piston compressor - Google Patents
High-pressure air cylinder chamber seal structure of reciprocating type piston compressor Download PDFInfo
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- CN102384071B CN102384071B CN201110383926.XA CN201110383926A CN102384071B CN 102384071 B CN102384071 B CN 102384071B CN 201110383926 A CN201110383926 A CN 201110383926A CN 102384071 B CN102384071 B CN 102384071B
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Abstract
The invention provides a high-pressure air cylinder chamber seal structure of a reciprocating type piston compressor, the high-pressure air cylinder chamber seal structure has the advantages of realizing the reliability of high-pressure air cylinder chamber sealing, utilized security and processed economy. The seal structure comprises a cylinder body and a high-pressure gas cavity; the seal structure is characterized in that a fabrication hole inner end face and an outer end plane of the cylinder body are respectively provided with an inner end annular groove, and an outer end annular groove; an external ring surface of an outer convex circle of a plug with the outer convex circle is fitted on a ring surface of the inner end annular groove, and the inner end annular groove approaches to a ring surface of the outer end annular groove so as to provide with an annular taper liner; the outer convex circle of the plug is provided with a same slope inclined plane corresponding to the annular taper liner, and an end cover covers the outer end annular groove of the cylinder body; an external ring plane of the end cover is closely fitted the ring surface of the outer end annular groove, a bolt penetrates through the end cover and is in threaded connection with a connecting part of the plug; and the external ring surface of the connecting part of the plug is closely fitted an internal ring surface of the fabrication hole.
Description
Technical field
The technical field that the present invention relates to the sealing configuration of reciprocating-piston compressor, is specially high-pressure air cylinder chamber seal structure of reciprocating.
Background technique
Reciprocating-piston compressor is that one is widely used in every profession and trade, realizes by changing gas in the jar volume the universal machine that gas pressure increases.In some mesohigh petrochemical equipment technological process and special circumstances, require gas pressure high especially, more than conventionally requiring to reach 10MPa, generally use forging cylinder could meet usage requirement.Conventionally forging cylinder can be divided into induction part, cylinder chamber part and discharge portion, and induction part has respectively three chambers that are connected with discharge portion.They are respectively that two air valve chambeies and one enter (row) air cavity.In order to be communicated with two air valve chambeies and the exhaust port of forging cylinder, can only start from cylinder body outside to form gas in the jar passage by machining, thereby produce a processing technology hole at cylinder body end face.In actual production, all can take suitable sealing configuration to seal.Particularly some explosive occasions especially will be noted structural design herein, do not allow the potential safety hazard that exists seal failure, explosion hazard gases to leak.
Existing sealing configuration mainly contains following two kinds of modes:
Mode one is as shown in Figure 1: by between plug 1 and cylinder body 2 be threaded and outside weldings weld seam is realized sealing.These structure existing problems:
1. because employing is threaded, processing only relies on tapping to solve, and precision is difficult for ensureing.
2. owing to adopting welded structure to dismantle.
3. weld seam melting zone is little, easily produces weld cracking or welding stress, and weld seam only abutment surface infiltration detection cannot ensure that its defect can be found completely completely.
4. right-hand member air flue hole is high-pressure section, and left end is normal pressure part, although this kind of sealing means structure is simple, uncertain factor is many.Rely on threaded pre-tightening power and welding passive seal to have potential safety hazard.
Mode two is as shown in Figure 2: it applies larger pretightening force by the bolt 3 to uniform, by flange 4 tightly to be pressed in cylinder body 2 ' upper, realize sealing by the annular taper liner 5 between flange 4 and cylinder body 2 '.These structure existing problems:
1. owing to adopting blank flange structure, physical dimension is larger, and bolt arrangement difficulty causes cylinder profile to increase, less economical.
2. right-hand member air flue hole is high-pressure section, and left end is normal pressure part, relies on the pretightening force of bolt to seal, and is passive seal structure, has larger potential safety hazard.
Summary of the invention
For the problems referred to above, the invention provides high-pressure air cylinder chamber seal structure of reciprocating, it realizes reliability, the Security of use and the Economy of processing of high pressure cylinder cavity seal.
High-pressure air cylinder chamber seal structure of reciprocating, its technological scheme is such: it comprises cylinder body, heavy pressure gas chamber, it is characterized in that: the auxiliary hole interior edge face of described cylinder body, exterior edge face is respectively arranged with inner circular groove, outer end circular groove, with the anchor ring of the described inner circular groove of outer ring surface laminating of the outer dome of the plug of outer dome, described inner circular groove is provided with annular taper liner near the anchor ring of outer end circular groove, the corresponding described annular taper liner of outer dome of described plug is provided with the inclined-plane of same slope, end cap mounts cover in the outer end of described cylinder body circular groove, the outer ring surface of described end cap is close to the anchor ring of described outer end circular groove, described in bolt-through, end cap rear thread connects the attachment portion of described plug, the outer ring surface of the attachment portion of described plug is close to the inner ring surface of described auxiliary hole.
It is further characterized in that: between the outer ring surface of the attachment portion of described plug and the inner ring surface of described auxiliary hole, be provided with O type circle;
Described circular slanting pad is specially the annular taper liner of alloy aluminum.
Adopt after said structure of the present invention, high-pressure gas pressure in heavy pressure gas chamber is pressed in the outer dome of plug in the inner circular groove of cylinder, annular taper liner fits tightly respectively plug, the inner circular groove of cylinder, complete sealing, whole sealing configuration is active sealing structure: do not rely on the external world and apply pretightening force, simple rely on self pressure to reach self-locking and realize the structure of sealing, it realizes the reliability of high pressure cylinder cavity seal, the Security using, and total only has higher requirements with the precision on the inclined-plane of the corresponding described annular taper liner of plug to annular taper liner, other finished surface required precisions are lower, reduce processing technology requirement, the good economy performance of its processing.
Brief description of the drawings
Fig. 1 is the structural representation of the sealing means one of existing sealing configuration;
Fig. 2 is the structural representation of the sealing means two of existing sealing configuration;
Fig. 3 is structural representation of the present invention.
Embodiment
See Fig. 3, it comprises cylinder body 2, heavy pressure gas chamber 6, auxiliary hole 7 interior edge faces of cylinder body 2, exterior edge face is respectively arranged with inner circular groove 8, outer end circular groove 9, with the fit anchor ring of inner circular groove 8 of the outer ring surface of the outer dome 10 of the plug 1 of outer dome, inner circular groove 8 is provided with annular taper liner 5 near the position of outer end circular groove 9, the corresponding annular taper liner 5 of outer dome 10 of plug 1 is provided with the inclined-plane 11 of same slope, end cap 4 mounts cover in the outer end of cylinder body 2 circular groove 9, the outer ring surface of end cap 4 is close to the anchor ring of outer end circular groove 9, bolt 3 runs through the attachment portion 12 that end cap 4 rear threads connect plug 1, the outer ring surface of the attachment portion 12 of plug 1 is close to the inner ring surface of auxiliary hole 7.Between the outer ring surface of the attachment portion 12 of plug 1 and the inner ring surface of auxiliary hole 7, be provided with O type circle 13; Annular taper liner 5 is specially the annular taper liner of alloy aluminum.
Claims (1)
1. high-pressure air cylinder chamber seal structure of reciprocating, it comprises cylinder body, heavy pressure gas chamber, it is characterized in that: the auxiliary hole interior edge face of described cylinder body, exterior edge face is respectively arranged with inner circular groove, outer end circular groove, with the anchor ring of the described inner circular groove of outer ring surface laminating of the outer dome of the plug of outer dome, described inner circular groove is provided with annular taper liner near the anchor ring of outer end circular groove, the corresponding described annular taper liner of outer dome of described plug is provided with the inclined-plane of same slope, end cap mounts cover in the outer end of described cylinder body circular groove, the outer ring surface of described end cap is close to the anchor ring of described outer end circular groove, described in bolt-through, end cap rear thread connects the attachment portion of described plug, the outer ring surface of the attachment portion of described plug is close to the inner ring surface of described auxiliary hole, described circular slanting pad is specially the annular taper liner of alloy aluminum, between the outer ring surface of the attachment portion of described plug and the inner ring surface of described auxiliary hole, be provided with O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110383926.XA CN102384071B (en) | 2011-11-28 | 2011-11-28 | High-pressure air cylinder chamber seal structure of reciprocating type piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110383926.XA CN102384071B (en) | 2011-11-28 | 2011-11-28 | High-pressure air cylinder chamber seal structure of reciprocating type piston compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102384071A CN102384071A (en) | 2012-03-21 |
| CN102384071B true CN102384071B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110383926.XA Active CN102384071B (en) | 2011-11-28 | 2011-11-28 | High-pressure air cylinder chamber seal structure of reciprocating type piston compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108155490B (en) * | 2018-01-10 | 2023-05-30 | 东风商用车有限公司 | Public grounding structure and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201884632U (en) * | 2010-12-24 | 2011-06-29 | 石狮市宏企压力容器有限公司 | Vertical type pressure vessel convenient to wash |
| CN202391683U (en) * | 2011-11-28 | 2012-08-22 | 无锡压缩机股份有限公司 | High-pressure air cylinder chamber seal structure of reciprocating-type piston compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201902549U (en) * | 2010-12-23 | 2011-07-20 | 中原特钢股份有限公司 | Novel sealing structure for ultrahigh pressure vessel |
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- 2011-11-28 CN CN201110383926.XA patent/CN102384071B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201884632U (en) * | 2010-12-24 | 2011-06-29 | 石狮市宏企压力容器有限公司 | Vertical type pressure vessel convenient to wash |
| CN202391683U (en) * | 2011-11-28 | 2012-08-22 | 无锡压缩机股份有限公司 | High-pressure air cylinder chamber seal structure of reciprocating-type piston compressor |
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| Publication number | Publication date |
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| CN102384071A (en) | 2012-03-21 |
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Address after: 214145 No. 199, xixie Road, Hongshan street, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Shengang Wuxi Compressor Co.,Ltd. Address before: 214145 Jiangsu Wuxi new town Photoelectric Industrial Park 1 Patentee before: WUXI COMPRESSOR Co.,Ltd. |
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