CN103388571B - A kind of hydrogen gas compressor Seal Kit - Google Patents
A kind of hydrogen gas compressor Seal Kit Download PDFInfo
- Publication number
- CN103388571B CN103388571B CN201310361392.XA CN201310361392A CN103388571B CN 103388571 B CN103388571 B CN 103388571B CN 201310361392 A CN201310361392 A CN 201310361392A CN 103388571 B CN103388571 B CN 103388571B
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- seal
- ring
- nitrogen
- shaft seal
- stuffing box
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Abstract
The invention provides a kind of New Hydrogen air compressor Seal Kit.Sealing external member, by restrictor ring, organizes stuffing box more, nitrogen-sealed chamber, nitrogen stuffing box, "O"-ring, stuffing box pressing plate, Gland, and many group shaft seal seal rings, shaft seal gland nut, shaft seal hold-down bolt forms.Restrictor ring above, many group stuffing boxes utilize the principle reduced pressure step by step to reach sealing purpose, but not easily seal due to hydrogen molecule, and filler weares and teares and sealing effect all can be made undesirable.In nitrogen-sealed chamber below, nitrogen pressure is micro positive pressure relative to post-decompression hydrogen, also can reach certain seal action, recycling many groups shaft seal seal ring, utilize shaft seal hold-down bolt and gland nut adjustment to compress gap, finally reach best sealing effect.
Description
Technical field
The present invention relates to a kind of shaft seal structure, particularly relate to a kind of hydrogen gas compressor shaft seal structure.
Background technique
Sealing configuration is one of critical component of compressor.The requirement of compressor to shaft seal is stricter.
Packing seal is a kind of conventional sealing means.Filler is made up of one or more ring, is included in stuffing box, provides the functions such as lubrication, cleaning, cooling, sealing, temperature and pressure during operation.Be equipped with seal ring in stuffing box, each ring enters air or isolation ward to stop or limiting gas, often organizes packing ring and be assemblied in respectively in independent stuffing box.Each seal ring lock ring reaches seal action on the piston rod, tightly clings the stuffing box groove face at a right angle with piston rod simultaneously.The Pressure Drop that the sealing of new filler near pressure side is born is maximum.Because filler can wear and tear, so piston ring fault area can increase along with the spreadable life and increase, the seal ring in downstream will bear the increasing pressure and fall, the step pressure reducing deleterious of filler, cause sealing effect not good, cause gas leakage.
Summary of the invention
The object of this invention is to provide a kind of novel hydrogen gas compressor shaft seal structure, solve the difficult problem that hydrogen molecule not easily seals.
A kind of hydrogen gas compressor Seal Kit, by restrictor ring, organizes stuffing box, nitrogen-sealed chamber, nitrogen stuffing box, "O"-ring, stuffing box pressing plate, Gland more, and many group shaft seal seal rings, shaft seal gland nut, shaft seal hold-down bolt forms.
Often organize stuffing box and a set of radial seal ring, a set of tangential seal ring, a set of block ring are installed all successively from high pressure side to low voltage side, in rear 2 groups of nitrogen-sealed chambeies, design leak sealing ring, nitrogen pressurising room, nitrogen pressure releasing chamber.
Restrictor ring is three lobes, is contained in high pressure side (cylinder side), and effect prevents high-voltage high-speed gas from impacting seal ring, avoids cold flow, by the step-down of throttling action reduction of speed or the direction changing air-flow, and is axially blocking the radial clearance of seal ring.Filler moves with the motion of piston rod, when piston moves to crankshaft side, filler also moves in the same direction, now block ring and seal ring are tightly fitted, and seal ring and stuffing box are tightly fitted and played seal action, have a small amount of gas leakage, block ring in previous stuffing box plays choked flow effect, the seal ring of a stuffing box next seals, and reduces pressure step by step like this, thus plays seal action.When compressor is to cylinder head lateral movement, filler moves to equidirectional with piston rod, and now due to the existence of pressure reduction, the portion gas in stuffing box flows in cylinder by the opening on block ring, like this perseveration, thus plays seal action.
After many groups stuffing box utilizes the principle that reduces pressure step by step that the hydrogen of 10MPa is reduced to 0.9 ~ 1.0MPa, utilize nitrogen-sealed chamber, nitrogen pressure is about 1.0MPa, is micro positive pressure relative to post-decompression hydrogen, can hydrogen gas leakage be prevented, between nitrogen-sealed chamber and stuffing box above, have "O"-ring to seal.
Utilize shaft seal hold-down bolt and gland nut adjustment to compress gap, when tightening gland nut, shaft seal seal ring is axially compressed, and produces radial force, with piston rod close contact, reaches seal action.During work, adjustment in good time compresses gap, has reached hermetic object.Shaft seal seal ring quantity can be determined according to operating mode.
The present invention seals different from conventional filler, has set up shaft seal hold-down bolt, shaft seal gland nut, and the shaft seal seal ring of reversible, can according to process seal state freely adjusting axle be sealed the expansive force of seal ring, make it to ensure hydrogen compressor optimum Working, reach energy-conservation effect.
This Seal Kit overcomes the defect of conventional seals, the advantage such as have low in energy consumption, good sealing effect, the life-span is long, reliability is high, operation maintenance is simple, ensure that unit safety, stable, for a long time, at full capacity, high-quality runs.
Accompanying drawing explanation
Fig. 1 is structure drawing of device of the present invention.
Meaning in figure representated by each numbering is as follows:
1: stuffing box base; 2: restrictor ring; 3: stuffing box; 4: radial seal ring; 5: tangential seal ring; 6: block ring; 7: nitrogen-sealed chamber; 8: nitrogen stuffing box; 9: filler pressboard; 10: leak sealing ring; 11: shaft seal seal ring; 12: Gland; 13: shaft seal hold-down bolt; 14: shaft seal locking nut; 15: "O"-ring; 16: piston rod.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of hydrogen gas compressor Seal Kit as shown in Figure 1, comprise restrictor ring (2), stuffing box (3), nitrogen-sealed chamber (7), "O"-ring (14), stuffing box pressing plate (9), Gland (11), shaft seal seal ring (10), shaft seal hold-down bolt (12), shaft seal gland nut (13).
Stuffing box base (1) installed successively 1 group of restrictor ring (2), 7 groups of stuffing boxes (3), filler pressboard (9), 2 groups of nitrogen-sealed chambeies (7), 2 groups of nitrogen stuffing boxes (8), Glands (12), fill between Gland (12) and piston rod (16) and organize shaft seal seal ring (11) more, shaft seal hold-down bolt (13) is installed again, by shaft seal gland nut (14).
By high pressure side to low voltage side, radial seal ring (4), tangential seal ring (5), block ring (6) are installed successively in stuffing box (3).
Restrictor ring (2) is arranged on the high pressure side of cylinder, play throttling action, the direction of reduction of speed step-down or change air-flow, the gas pressure entering stuffing box (3) is reduced, radial seal ring (4) in first group of stuffing box (3) and tangential seal ring (5) seal, and block ring (6) plays choked flow reduction of speed hypotensive effect.After 7 groups of stuffing boxes (3), gas pressure reduces step by step.And then through nitrogen-sealed, shaft seal seal ring seal, reaches the object of thoroughly sealing.
Claims (1)
1. a hydrogen gas compressor Seal Kit, this hydrogen gas compressor Seal Kit is by restrictor ring, organize stuffing box more, nitrogen-sealed chamber, nitrogen stuffing box, "O"-ring, stuffing box pressing plate, Gland, many groups shaft seal seal ring, shaft seal gland nut, shaft seal hold-down bolt forms, restrictor ring is arranged on cylinder side, play the effect of the step-down of throttling reduction of speed or change airflow direction, the hydrogen of 10MPa reduces pressure 0.9 ~ 1.0MPa by the principle that many group stuffing boxes utilize seal ring to reduce pressure step by step below, nitrogen-sealed chamber nitrogen pressure is about 1.0MPa, be micro positive pressure relative to the gas in last group of stuffing box, prevent hydrogen gas leakage, again by shaft seal seal ring, utilize shaft seal gland nut and hold-down bolt, adjusting axle is sealed the expansive force of seal ring, in good time adjustment compresses gap, reach hermetic object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310361392.XA CN103388571B (en) | 2013-08-19 | 2013-08-19 | A kind of hydrogen gas compressor Seal Kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310361392.XA CN103388571B (en) | 2013-08-19 | 2013-08-19 | A kind of hydrogen gas compressor Seal Kit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103388571A CN103388571A (en) | 2013-11-13 |
| CN103388571B true CN103388571B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310361392.XA Active CN103388571B (en) | 2013-08-19 | 2013-08-19 | A kind of hydrogen gas compressor Seal Kit |
Country Status (1)
| Country | Link |
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| CN (1) | CN103388571B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263721B (en) * | 2022-08-01 | 2023-06-16 | 华北电力大学（保定） | Filling system of hydrogen compressor for hydrogenation station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043606Y (en) * | 2007-04-24 | 2008-04-02 | 神华煤制油研究中心有限公司 | Packing seal structure for high-pressure gas |
| CN201794760U (en) * | 2010-08-30 | 2011-04-13 | 安瑞科(蚌埠)压缩机有限公司 | High-pressure sealing packing of compressor cylinder |
| CN201963520U (en) * | 2011-03-15 | 2011-09-07 | 沈阳鼓风机集团股份有限公司 | Piston compressor nitrogen sealed packing |
| CN203098196U (en) * | 2012-12-28 | 2013-07-31 | 蚌埠市联合压缩机制造有限公司 | Packing seal device of gas compressor |
| CN203453005U (en) * | 2013-08-19 | 2014-02-26 | 宁夏宝塔石化科技实业发展有限公司 | Hydrogen gas compressor seal fitting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5352322B2 (en) * | 2009-04-07 | 2013-11-27 | 株式会社日立製作所 | Hydrogen compressor |
-
2013
- 2013-08-19 CN CN201310361392.XA patent/CN103388571B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043606Y (en) * | 2007-04-24 | 2008-04-02 | 神华煤制油研究中心有限公司 | Packing seal structure for high-pressure gas |
| CN201794760U (en) * | 2010-08-30 | 2011-04-13 | 安瑞科(蚌埠)压缩机有限公司 | High-pressure sealing packing of compressor cylinder |
| CN201963520U (en) * | 2011-03-15 | 2011-09-07 | 沈阳鼓风机集团股份有限公司 | Piston compressor nitrogen sealed packing |
| CN203098196U (en) * | 2012-12-28 | 2013-07-31 | 蚌埠市联合压缩机制造有限公司 | Packing seal device of gas compressor |
| CN203453005U (en) * | 2013-08-19 | 2014-02-26 | 宁夏宝塔石化科技实业发展有限公司 | Hydrogen gas compressor seal fitting |
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| Publication number | Publication date |
|---|---|
| CN103388571A (en) | 2013-11-13 |
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