CN2420441Y - Air valve cover seal device of compressor - Google Patents
Air valve cover seal device of compressor Download PDFInfo
- Publication number
- CN2420441Y CN2420441Y CN 00217321 CN00217321U CN2420441Y CN 2420441 Y CN2420441 Y CN 2420441Y CN 00217321 CN00217321 CN 00217321 CN 00217321 U CN00217321 U CN 00217321U CN 2420441 Y CN2420441 Y CN 2420441Y
- Authority
- CN
- China
- Prior art keywords
- air valve
- valve cap
- compressor
- air
- cap
- 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.)
- Expired - Lifetime
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- Compressor (AREA)
Abstract
The utility model discloses a seal device for an air valve cover of a compressor, which comprises a cylinder cover and an air valve cover. A seal cushion is arranged between the air valve cover and the cylinder cover; a pressure valve hood is additionally arranged on an air valve, and the air valve is tightly pushed by a pushing screw rod; a screw cap is arranged at the outer end of the pushing screw rod for braking and sealing; the screw cap, the pushing screw rod, and a bowl-shaped multiple ribs-shaped pressure valve hood simultaneously act and tightly press on the air valve. The utility model has the advantages of good air seal performance, safe in operation, convenience dismounting and maintenance, etc.
Description
The utility model relates to compressor valve lid sealing technique.
Compressor generally is used for gas boosting, because gas boosting is very high to seal request, especially for the supercharging to inflammable explosion hazard gas, does not allow gas leakage.At present, the many employing side seals of piston compressor air valve cap mode, be to embed seal ring between air valve cap and the cylinder head side, sealing material is rubber " O " type circle, and the residing ambient temperature of air valve cap is about 130 ℃, under this temperature, rubber " O " type circle is very easy to aging, the seal ring compressive deformation after wearing out, and elasticity is very poor, the air valve cap sealing part must have gas leakage, must often stop for this reason and change seal ring, owing to be the side seal structure, the disassembling, assembling and replacing trouble, so both wasted in a large number manually, wasted sealing material again.Main is as using in inflammable and explosive property gas industries such as hydrogen manufacturing, oxygen, have danger greatly, safety in production being caused very big hidden danger.
The purpose of this utility model is to provide that a kind of air-tightness is good, safe and reliable to operation, disassembling, assembling and replacing is convenient, timesaving compressor valve cap sealing.
The purpose of this utility model is achieved in that
The compressor valve seal arrangement, comprise air valve cap, fastening screw, pressure valve bonnet, air valve cap is the cover plate that the center has center screw, is provided with sealing gasket between air valve cap and the cylinder head, and the fastener hole that is passed on the air valve cap by bolt is anchored on air valve cap and sealing gasket on the cylinder head; Fastening screw one end passes the center screw on the air valve cap, holds out against the pressure valve bonnet top, the other end that the exposes air valve cap nut of screwing on, the sealing gasket sealing is set between nut and the air valve cap, nut promptly plays braking action, and seal action is arranged again, prevents that gas from escaping along fastening screw; Pressure valve bonnet is many muscle shape cover cover body, and cover body top is platform, and the centre is a supporting rib, and the bottom is an annulus, and pressure valve bonnet offsets with the air valve that is fixed on the cylinder, and nut, fastening screw, pressure valve bonnet three act on simultaneously presses air valve.
Air valve cap middle part projection is round table-like.
Supporting rib number in the pressure valve bonnet is at least three, guarantees that pressure valve bonnet has enough support strengths.
Because the utility model adopts the plane sealing mode between air valve cap and cylinder head, and on air valve, installed pressure valve bonnet additional, and hold out against with fastening screw, the fastening screw outer end is braked, is sealed with nut, nut, fastening screw, pressure valve bonnet three act on air valve simultaneously, and sealing gasket is that aluminium matter or material such as copper are made, and air-tightness has had large increase than before, the replacing seal ring that also need not often stop, disassembling, assembling and replacing is convenient and time-saving.
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a partial sectional view of the present utility model;
As shown in the figure, that air valve cap 1 middle part projection is is round table-like, the bottom is square cover plate, the air valve cap center has center screw, is provided with sealing gasket 2 between air valve cap 1 and the cylinder head 8, and the fastener hole that is passed 1 four jiaos of air valve caps by bolt 6 is anchored on air valve cap 1 and sealing gasket 2 on the cylinder head 8; Fastening screw 5 one ends pass the center screw on the air valve cap 1, hold out against pressure valve bonnet 7 tops, the other end that exposes air valve cap 1 nut 3 of screwing on, sealing gasket 4 sealings are set between nut 3 and the air valve cap 8, and pressure valve bonnet 7 is bowl-shape many muscle shape, and top is platform, there are four supporting ribs the centre, the bottom is an annulus, and annulus offsets with the air valve 9 that is fixed on the cylinder 10, and whole pressure valve bonnet 7 presses air valve 9; So far, nut 3, fastening screw 5, pressure valve bonnet 7 threes act on simultaneously and press air valve 9, guarantee that air valve 9 does not produce vibration in running.
Sealing gasket 2,4 is made for aluminium matter or copper material, and good plasticity is arranged behind the pressurized, and bigger resistance to pressure is radially being arranged.
Sealing gasket 2,4 also can be made by the composite material of asbestos rubber or asbestos rubber and PTFE.
In the compressor operating process, gas in the cylinder 10 is compressed generation pressure under the effect of piston, drain into air cavity by air valve 9, therefore, gas in the air cavity has certain pressure, in this process, because the thrust that air valve 9 has one to make progress under the effect of air under pressure, therefore, pressure valve bonnet 7, fastening screw 5,3 pairs of air valve 9 braking actions of nut; Simultaneously, owing to there is the interior gas of air cavity of certain pressure that air valve cap 1 is also had one thrust that makes progress, play the role of fastening by 6 pairs of air valve caps 1 of bolt; Gas in the air cavity is owing to there is certain pressure, can along between air valve cap 1 and the cylinder head 8 and fastening screw 5 leak, reach sealing by installing sealing gasket 2,4 and nut 3 additional.
Claims (3)
1, compressor valve cap sealing is characterized in that: it comprises air valve cap (1), fastening screw (5), pressure valve bonnet (7);
Said air valve cap (1) has the cover plate of center screw for the center;
Said pressure valve bonnet (7) is many muscle shape cover body, and cover body top is platform, and the centre is a supporting rib, and the bottom is an annulus, and pressure valve bonnet (7) offsets with the air valve (9) that is fixed on the cylinder (10);
Said fastening screw (5) one ends pass the center screw on the air valve cap (1), hold out against pressure valve bonnet (7) top, and the other end that exposes air valve cap (1) nut (6) of screwing on is provided with sealing gasket (4) sealing between nut (6) and the air valve cap (1);
Be provided with sealing gasket (2) between air valve cap (1) and the cylinder head (8), the fastener hole that is passed on the air valve cap (1) by bolt (6) is anchored on air valve cap (1) and sealing gasket (4) on the cylinder head (8).
2, compressor valve seal cover assembly as claimed in claim 1 is characterized in that: said air valve cap (1) middle part projection is round table-like.
3, compressor valve seal cover assembly as claimed in claim 1 or 2 is characterized in that: the supporting rib number in the said pressure valve bonnet (7) is at least three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217321 CN2420441Y (en) | 2000-04-20 | 2000-04-20 | Air valve cover seal device of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217321 CN2420441Y (en) | 2000-04-20 | 2000-04-20 | Air valve cover seal device of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420441Y true CN2420441Y (en) | 2001-02-21 |
Family
ID=33582886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00217321 Expired - Lifetime CN2420441Y (en) | 2000-04-20 | 2000-04-20 | Air valve cover seal device of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420441Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852198A (en) * | 2010-05-27 | 2010-10-06 | 蓝星化工有限责任公司 | Fixing device for fixed pressure valve bonnet of compressor |
| CN103075266A (en) * | 2011-10-26 | 2013-05-01 | 曼卡车和巴士股份公司 | Assembly of a valve cover on the cylinder head of an internal combustion engine |
-
2000
- 2000-04-20 CN CN 00217321 patent/CN2420441Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852198A (en) * | 2010-05-27 | 2010-10-06 | 蓝星化工有限责任公司 | Fixing device for fixed pressure valve bonnet of compressor |
| CN103075266A (en) * | 2011-10-26 | 2013-05-01 | 曼卡车和巴士股份公司 | Assembly of a valve cover on the cylinder head of an internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER OWNER: YICHANG SHEET CO., LTD., SHANGHAI BAOSHAN IRON +. STEEL CORP. Effective date: 20040521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040521 Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: 200431 No. 2288 Yang Nan Road, Shanghai Patentee before: Yichang Sheet Co., Ltd., Shanghai Baoshan Iron &. Steel Corp. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010221 |