CN102606744B - Machine sealing device capable of adjusting air pressure - Google Patents
Machine sealing device capable of adjusting air pressure Download PDFInfo
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- CN102606744B CN102606744B CN201210072589.7A CN201210072589A CN102606744B CN 102606744 B CN102606744 B CN 102606744B CN 201210072589 A CN201210072589 A CN 201210072589A CN 102606744 B CN102606744 B CN 102606744B
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 230000003068 static effect Effects 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000007770 graphite material Substances 0.000 claims description 4
- 239000010985 leather Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 244000208734 Pisonia aculeata Species 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009500 colour coating Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
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- Mechanical Sealing (AREA)
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Abstract
本发明公开了一种气压压力可调式机械密封装置，包括密封端面彼此配合以形成镜面密封的动环和静环，静环通过波纹回力胶套固定在槽体上，动环通过气袋胶套固定在旋转轴上并且随旋转轴一起转动，气袋胶套中的压力可调，动环和静环的彼此配合的密封端面在气袋胶套的作用下紧密配合。本发明通过调节气袋胶套中的压力来调节静环和动环彼此配合的密封端面之间的压力，能有效改善静环和动环彼此配合的密封端面之间的压力，提高密封能力且加宽压力调节范围。在静环和动环的密封端面圆周上的压力分布较均匀，动环和静环的磨损正常，机械密封装置的使用性能、寿命满足工艺要求。
The invention discloses an air pressure adjustable mechanical sealing device, which comprises a moving ring and a static ring whose sealing end faces cooperate with each other to form a mirror seal. It is fixed on the rotating shaft and rotates with the rotating shaft, the pressure in the air bag rubber sleeve is adjustable, and the sealing end faces of the moving ring and the static ring are closely matched under the action of the air bag rubber sleeve. The present invention adjusts the pressure between the sealing end faces of the static ring and the moving ring by adjusting the pressure in the rubber sleeve of the air bag, which can effectively improve the pressure between the sealing end faces of the static ring and the moving ring, improve the sealing ability and Widen the pressure adjustment range. The pressure distribution on the circumference of the sealing end faces of the static ring and the moving ring is relatively uniform, the wear of the moving ring and the static ring is normal, and the service performance and life of the mechanical seal device meet the process requirements.
Description
技术领域 technical field
本发明涉及一种机械式密封垫装置，更具体地讲，涉及一种气压压力可调的液下机械式密封垫装置。The invention relates to a mechanical gasket device, more specifically, to an underwater mechanical gasket device with adjustable air pressure.
背景技术 Background technique
美钢联法清洗槽的浸泡槽、电解槽和退火炉出口的水淬槽都需要使用沉没辊，通过沉没辊使带钢沉浸在一定深度的液下，才能满足产品生产的工艺要求。在该工艺中，需要阻止液体从沉没辊轴颈与槽体之间的间隙向外泄漏，否则该类工艺设备就不能满足生产的工艺要求。The immersion tank, electrolytic tank, and water quenching tank at the exit of the annealing furnace in the United States steel union method all need to use sinking rolls. The strip steel is immersed in a certain depth of liquid through the sinking rolls to meet the process requirements of product production. In this process, it is necessary to prevent the liquid from leaking out from the gap between the journal of the sinking roller and the tank body, otherwise this type of process equipment cannot meet the process requirements of production.
一般来讲，解决上述液体的泄漏问题有以下几个方案：Generally speaking, there are several solutions to solve the above liquid leakage problem:
1、不使用密封，即将液面控制在沉没辊轴颈与槽体之间的间隙以下。该方案由于产品(带钢)在液下反应的时间不够，不能满足工艺要求而不能实施；1. No seal is used, that is, the liquid level is controlled below the gap between the journal of the sinking roller and the tank body. This scheme cannot be implemented because the reaction time of the product (strip steel) in the liquid is not enough and cannot meet the process requirements;
2、使用填料，即在沉没辊轴颈与槽体之间的间隙里填充填料。该方案由于使用寿命短(1～2天)产生液体泄漏，致使生产成本高、污染环境等缺陷而不能实施；2. Use fillers, that is, fill fillers in the gap between the journal of the sinking roller and the tank body. Due to the short service life (1 to 2 days) of liquid leakage, this solution cannot be implemented due to defects such as high production costs and environmental pollution;
3、使用机械密封，即在沉没辊轴颈与槽体之间的间隙处安装机械密封。其中，机械密封由动环、静环和弹力件组成。静环固定在槽体上，动环安装在沉没辊轴颈上并随沉没辊一起转动。静环在弹力件的作用下靠紧动环，动环和静环的密封端面紧密接触并随着沉没辊的运转彼此相对转动，从而阻止槽体内的液体在沉没辊运转过程中的外泄。但该机械密封的弹力件是1根套在静环上的压簧，由于压簧的弹力不均匀，且分布在静环圆周上的压力无法动态调整，造成动环、静环的密封端面不能有效接触或压力分布不均，因此当沉没辊转动时，会造成液体从密封端面处泄漏，因而不能实施。3. Use a mechanical seal, that is, install a mechanical seal at the gap between the journal of the sinking roller and the tank body. Among them, the mechanical seal is composed of a moving ring, a static ring and elastic parts. The static ring is fixed on the tank body, and the moving ring is installed on the journal of the sinking roll and rotates together with the sinking roll. The static ring is pressed against the moving ring under the action of the elastic member, and the sealing end faces of the moving ring and the static ring are in close contact and rotate relative to each other with the operation of the sinking roller, thereby preventing the liquid in the tank from leaking out during the operation of the sinking roller. However, the elastic part of the mechanical seal is a compression spring set on the static ring. Due to the uneven elastic force of the compression spring and the pressure distributed on the circumference of the static ring cannot be dynamically adjusted, the sealing end faces of the moving ring and the static ring cannot be adjusted. The effective contact or pressure distribution is not uniform, so when the sinking roller rotates, it will cause the liquid to leak from the sealing end face, so it cannot be implemented.
发明内容 Contents of the invention
针对现有技术中的不足，本发明的目的在于提供一种气压压力可调式机械密封装置，所述气压压力可调式机械密封装置使动环和静环的密封端面上的工作压力可以动态调整且使压力在密封端面的圆周上均匀分布，可有效控制液体的泄漏。Aiming at the deficiencies in the prior art, the object of the present invention is to provide an air pressure adjustable mechanical seal device, which can dynamically adjust the working pressure on the sealing end faces of the moving ring and the static ring and The pressure is evenly distributed on the circumference of the sealing end face, which can effectively control the leakage of liquid.
为了实现上述目的，本发明提供了一种气压压力可调式机械密封装置，包括密封端面彼此配合以形成镜面密封的动环和静环，静环通过波纹回力胶套固定在槽体上，动环通过气袋胶套固定在旋转轴上并且随旋转轴一起转动，气袋胶套中的压力可调，动环和静环的彼此配合的密封端面在气袋胶套的作用下紧密配合。In order to achieve the above object, the present invention provides an air pressure adjustable mechanical seal device, which includes a dynamic ring and a static ring whose sealing end faces cooperate with each other to form a mirror seal. The air bag rubber sleeve is fixed on the rotating shaft and rotates together with the rotating shaft, the pressure in the air bag rubber sleeve is adjustable, and the sealing end faces of the moving ring and the static ring are closely matched under the action of the air bag rubber sleeve.
根据本发明的气压压力可调式机械密封装置，所述静环和动环由耐磨的石墨或合金材料制成。According to the air pressure adjustable mechanical seal device of the present invention, the static ring and the moving ring are made of wear-resistant graphite or alloy materials.
根据本发明的气压压力可调式机械密封装置，所述气袋胶套为皮囊式气袋胶套。According to the air pressure adjustable mechanical seal device of the present invention, the air bag rubber sleeve is a leather bag air bag rubber sleeve.
根据本发明的气压压力可调式机械密封装置，所述气袋胶套上设有气嘴。According to the air pressure adjustable mechanical sealing device of the present invention, the air bag rubber sleeve is provided with an air nozzle.
根据本发明的气压压力可调式机械密封装置，所述波纹回力胶套的一端通过螺栓固定在槽体上，所述静环通过管箍固定在波纹回力胶套的另一端上，所述气袋胶套的一端通过管箍固定在旋转轴上，所述动环通过管箍固定在气袋胶套的另一端上。According to the air pressure adjustable mechanical seal device of the present invention, one end of the corrugated rubber sleeve is fixed on the tank body through a bolt, the static ring is fixed on the other end of the corrugated rubber sleeve through a pipe collar, and the air bag One end of the rubber sleeve is fixed on the rotating shaft through a pipe hoop, and the moving ring is fixed on the other end of the airbag rubber sleeve through a pipe hoop.
根据本发明的气压压力可调式机械密封装置，所述波纹回力胶套由耐腐蚀的弹力橡胶制成。According to the air pressure adjustable mechanical seal device of the present invention, the corrugated rubber sleeve is made of corrosion-resistant elastic rubber.
根据本发明的气压压力可调式机械密封装置，所述气袋胶套由耐腐蚀的弹力橡胶制成。According to the air pressure adjustable mechanical seal device of the present invention, the air bag rubber sleeve is made of corrosion-resistant elastic rubber.
本发明与现有技术相比，具有使用寿命长、密封效果好和结构简单等优点，通过在原设备的基础上增加附件，优化构造结构，使动环和静环的密封端面上的工作压力可以动态调整且使压力在密封端面的圆周上均匀分布。本发明可以应用于酸洗、电镀锌、热镀锌、连退、彩涂等机组的液体(水、碱液、酸液、乳化液)密封设备及其它有相应要求的领域。Compared with the prior art, the present invention has the advantages of long service life, good sealing effect and simple structure. By adding accessories on the basis of the original equipment and optimizing the structure, the working pressure on the sealing end faces of the moving ring and the static ring can be reduced. Dynamically adjust and evenly distribute the pressure on the circumference of the sealing end face. The invention can be applied to liquid (water, lye, acid, emulsion) sealing equipment of pickling, electrogalvanizing, hot-dip galvanizing, continuous annealing, color coating and other units and other fields with corresponding requirements.
附图说明 Description of drawings
图1是本发明示例性实施例的气压压力可调式机械密封装置的结构示意图。Fig. 1 is a schematic structural view of an air pressure adjustable mechanical seal device according to an exemplary embodiment of the present invention.
图2是本发明示例性实施例的气压压力可调式机械密封装置的装配结构示意图。Fig. 2 is a schematic diagram of an assembly structure of an air pressure adjustable mechanical seal device according to an exemplary embodiment of the present invention.
附图标记说明：Explanation of reference signs:
1-静环、2-动环、3-气袋胶套、4-密封端面、5-波纹回力胶套、6-旋转轴、7-液体、8-槽体。1-static ring, 2-moving ring, 3-air bag rubber sleeve, 4-sealing end face, 5-corrugated rubber sleeve, 6-rotating shaft, 7-liquid, 8-tank body.
具体实施方式 Detailed ways
现在将参照附图来详细地描述本发明的示例性实施例，以使本发明所属领域的技术人员能够容易实施本发明。Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the invention.
图1是本发明示例性实施例的气压压力可调式机械密封装置的结构示意图，图2是本发明示例性实施例的气压压力可调式机械密封装置的装配结构示意图。如图1和图2所示，本发明的气压压力可调式机械密封装置包括密封端面4能够彼此配合以形成镜面密封的动环2和静环1，静环1通过波纹回力胶套5固定在槽体8上，动环2通过气袋胶套3安装在旋转轴6上并且随旋转轴6一起转动。Fig. 1 is a schematic structural diagram of an adjustable pneumatic pressure mechanical seal device according to an exemplary embodiment of the present invention, and Fig. 2 is a schematic diagram of an assembly structure of an adjustable pneumatic pressure mechanical seal device according to an exemplary embodiment of the present invention. As shown in Figure 1 and Figure 2, the air pressure adjustable mechanical seal device of the present invention includes a moving ring 2 and a static ring 1 whose sealing end faces 4 can cooperate with each other to form a mirror seal, and the static ring 1 is fixed on the On the tank body 8 , the moving ring 2 is installed on the rotating shaft 6 through the air bag rubber sleeve 3 and rotates together with the rotating shaft 6 .
安装时，将波纹回力胶套5的一端通过螺栓固定在槽体8上，静环1通过管箍(未示出)固定在波纹回力胶套5的另一端上；气袋胶套3的一端通过管箍固定在旋转轴6上，动环2通过管箍固定在气袋胶套3的另一端上。During installation, one end of the corrugated pull-back rubber sleeve 5 is fixed on the tank body 8 by bolts, and the static ring 1 is fixed on the other end of the corrugated pull-back rubber sleeve 5 through a pipe collar (not shown); one end of the airbag rubber sleeve 3 The moving ring 2 is fixed on the other end of the airbag rubber sleeve 3 through a pipe collar on the rotating shaft 6 .
其中，气袋胶套3为皮囊式气袋胶套，并且气袋胶套3中的压力是可以调节的，动环2和静环1的彼此配合的密封端面4在气袋胶套3的压力作用下紧密配合，并且能有效相对转动。具体地，气袋胶套3为环形密封结构并且其上设有气嘴(未示出)，可以直接通过气嘴进行气压的调节。优选地，气袋胶套3由耐酸碱的弹力橡胶制成；静环1由耐磨石墨或合金材料制成，优选为石墨；动环2也由耐磨石墨或合金材料制成，优选为石墨；波纹回力胶套5由耐酸碱的弹力橡胶制成，但上述构件的材料均不限于此。Wherein, the air bag rubber sleeve 3 is a leather bag type air bag rubber sleeve, and the pressure in the air bag rubber sleeve 3 can be adjusted. Tight fit under pressure and effective relative rotation. Specifically, the air bag rubber sleeve 3 is an annular sealing structure and is provided with an air nozzle (not shown), through which the air pressure can be directly adjusted. Preferably, the air bag rubber cover 3 is made of acid and alkali resistant elastic rubber; the static ring 1 is made of wear-resistant graphite or alloy material, preferably graphite; the moving ring 2 is also made of wear-resistant graphite or alloy material, preferably It is graphite; the corrugated rubber sleeve 5 is made of acid and alkali resistant elastic rubber, but the materials of the above components are not limited thereto.
在本实施例中，静环1为石墨静环，内孔直径范围可达Φ60mm～Φ200mm；动环2为石墨动环，内孔直径范围可达Φ60mm～Φ200mm。装配时，将波纹回力胶套5的A处通过螺栓固定在槽体8上，静环1则通过管箍固定在波纹回力胶套5的C处；将气袋胶套3的B处通过管箍固定在旋转轴6的轴颈上，动环2则通过管箍固定在气袋胶套3的D处，旋转轴6具体为沉没辊，具体的装配结构图如图2所示。In this embodiment, the static ring 1 is a graphite static ring, and the diameter of the inner hole can reach Φ60mm-Φ200mm; the moving ring 2 is a graphite moving ring, and the diameter of the inner hole can reach Φ60mm-Φ200mm. When assembling, the A part of the corrugated rubber sleeve 5 is fixed on the tank body 8 by bolts, and the static ring 1 is fixed on the C part of the corrugated rubber sleeve 5 through a pipe hoop; the B part of the airbag rubber sleeve 3 is passed through the tube The hoop is fixed on the journal of the rotating shaft 6, and the moving ring 2 is fixed on the D of the airbag rubber sleeve 3 through a pipe hoop. The rotating shaft 6 is specifically a sinking roller. The specific assembly structure diagram is shown in Figure 2.
本发明的气压压力可调式机械密封装置首先利用波纹回力胶套5的回弹力给予静环1、动环2的彼此配合的密封端面4一定的预紧力，使静环1、动环2的彼此配合的密封端面4相互贴拢。然后，再根据密封情况调整气袋胶套3的气袋中的压力，即调整静环1、动环2的彼此配合的密封端面4上的压力，使动环2和静环1的彼此配合的密封端面4在最适合的压力作用下紧密配合并且能有效相对旋转，使密封端面4在圆周上的压力分布均匀以达到最好的密封效果。The pneumatic pressure adjustable mechanical seal device of the present invention first uses the resilience of the corrugated rubber sleeve 5 to give a certain pre-tightening force to the sealing end faces 4 of the static ring 1 and the dynamic ring 2, so that the static ring 1 and the dynamic ring 2 The sealing end faces 4 that cooperate with each other are pressed against each other. Then, adjust the pressure in the air bag of the air bag rubber cover 3 according to the sealing situation, that is, adjust the pressure on the sealing end face 4 of the static ring 1 and the moving ring 2, so that the mutual cooperation of the moving ring 2 and the static ring 1 The sealing end face 4 is tightly fitted under the most suitable pressure and can effectively rotate relatively, so that the pressure distribution of the sealing end face 4 on the circumference is uniform to achieve the best sealing effect.
经过实验证明，本实施例的气压压力可调式机械密封装置能够密封住槽体中约7米深的液体不泄漏，其使用寿命能达到11个月左右。Experiments have proved that the mechanical seal device with adjustable air pressure in this embodiment can seal the liquid about 7 meters deep in the tank without leakage, and its service life can reach about 11 months.
综上所述，本发明的气压压力可调式机械密封装置通过调节气袋胶套的压力来调节静环和动环的彼此配合的密封端面之间的压力，能有效改善静环和动环彼此配合的密封端面之间的压力，提高密封能力且加宽压力调节范围。静环和动环的密封端面的圆周上压力分布较均匀，动环和静环的磨损正常，机械密封装置的使用性能、寿命满足工艺要求。In summary, the air pressure adjustable mechanical seal device of the present invention adjusts the pressure between the sealing end faces of the static ring and the dynamic ring by adjusting the pressure of the air bag rubber sleeve, which can effectively improve the mutual sealing between the static ring and the dynamic ring. The pressure between the matching sealing end faces improves the sealing ability and widens the pressure adjustment range. The pressure distribution on the circumference of the sealing end faces of the static ring and the moving ring is relatively uniform, the wear and tear of the moving ring and the static ring is normal, and the service performance and life of the mechanical seal device meet the process requirements.
尽管已经参照本发明的示例性实施例具体描述了本发明的气压压力可调式机械密封装置，但是本领域的技术人员应该知道，在不脱离本发明的精神和范围的情况下，可以对实施例做出各种形式的改变。Although the air pressure adjustable mechanical seal device of the present invention has been specifically described with reference to the exemplary embodiments of the present invention, those skilled in the art should know that the embodiments can be modified without departing from the spirit and scope of the present invention. Make changes of all kinds.
Claims (6)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3717352A (en) * | 1969-04-26 | 1973-02-20 | Interatum Int Atomreaktorbau G | Seal for rotatable covers of nuclear reactors |
| GB2006351A (en) * | 1977-10-21 | 1979-05-02 | Nokia Oy Ab | Seals |
| CN2080592U (en) * | 1990-07-27 | 1991-07-10 | 高绍纪 | Pneumatic backflow end face tail shaft seal |
| CN2748710Y (en) * | 2004-09-17 | 2005-12-28 | 攀钢集团攀枝花钢铁研究院 | Sealing device |
| CN101893095A (en) * | 2009-05-24 | 2010-11-24 | 宁文礼 | Pressurization sealing ring |
| CN202040335U (en) * | 2011-04-22 | 2011-11-16 | 天津博鑫隆塑管有限公司 | Air bag type air-sealing plug |
-
2012
- 2012-03-19 CN CN201210072589.7A patent/CN102606744B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3717352A (en) * | 1969-04-26 | 1973-02-20 | Interatum Int Atomreaktorbau G | Seal for rotatable covers of nuclear reactors |
| GB2006351A (en) * | 1977-10-21 | 1979-05-02 | Nokia Oy Ab | Seals |
| CN2080592U (en) * | 1990-07-27 | 1991-07-10 | 高绍纪 | Pneumatic backflow end face tail shaft seal |
| CN2748710Y (en) * | 2004-09-17 | 2005-12-28 | 攀钢集团攀枝花钢铁研究院 | Sealing device |
| CN101893095A (en) * | 2009-05-24 | 2010-11-24 | 宁文礼 | Pressurization sealing ring |
| CN202040335U (en) * | 2011-04-22 | 2011-11-16 | 天津博鑫隆塑管有限公司 | Air bag type air-sealing plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102606744A (en) | 2012-07-25 |
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