CN114060524B - Packaging type strong corrosion-resistant double-end-face mechanical seal - Google Patents
Packaging type strong corrosion-resistant double-end-face mechanical seal Download PDFInfo
- Publication number
- CN114060524B CN114060524B CN202111421305.6A CN202111421305A CN114060524B CN 114060524 B CN114060524 B CN 114060524B CN 202111421305 A CN202111421305 A CN 202111421305A CN 114060524 B CN114060524 B CN 114060524B
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- negative pressure
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- movable
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- 230000007797 corrosion Effects 0.000 title claims abstract description 20
- 238000005260 corrosion Methods 0.000 title claims abstract description 20
- 238000004806 packaging method and process Methods 0.000 title abstract description 3
- 238000007789 sealing Methods 0.000 claims abstract description 142
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 18
- 238000005728 strengthening Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 22
- 230000009471 action Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3492—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member with monitoring or measuring means associated with the seal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to the field of double-end-face mechanical sealing, in particular to a container type strong corrosion-resistant double-end-face mechanical sealing, which comprises a rotating shaft, a reinforcing mechanism, a mechanical sealing mechanism and a negative pressure mechanism. The packaging type strong corrosion-resistant double-end-face mechanical seal has the advantages that the spring is not required to be in contact with the movable ring through the arrangement of the movable sleeve, mechanical fatigue caused by the fact that the spring is movable along with the movable ring is avoided, so that the static ring is guaranteed to be attached to the movable ring, meanwhile, under the cooperation of the end face sealing pipe, the inner space of an oil cavity is separated, the inner wall of the middle of the end face sealing pipe is pressed tightly under the action of negative pressure, extension of an end face joint gap between the movable ring and the static ring is prevented, leakage of sealing liquid filled along the gap is prevented, when two end faces are misplaced, the sealing liquid is leaked, the negative pressure on the inner side of the end face sealing pipe guides the leaked sealing liquid, the negative pressure can attract the sealing liquid to enter the negative pressure pipe, and overflow of the sealing liquid is avoided.
Description
Technical Field
The invention relates to the field of double-end-face mechanical sealing, in particular to a container type strong corrosion-resistant double-end-face mechanical sealing.
Background
In chemical production, leakage of sealing liquid of a mechanical seal is a great difficult problem which is difficult to solve, the leakage has great influence on material quality, explosion and fire are easy to happen, and the like.
The following problems in the prior art are not well solved: 1. the existing mechanical seal mostly adopts a floating sealing structure of a movable ring, the movable ring is pushed by the elastic force of a spring to be tightly attached to the end face of a static ring so as to keep sealing, but the spring arranged on a movable ring seat also rotates along with the movable ring seat, so that the spring stretches frequently, and the service life is easy to lose efficacy or damage; 2. meanwhile, mechanical sealing is invalid due to mechanical fatigue of the spring, corrosive liquid or gas possibly seeps out of the mechanical sealing, so that the damage to the external environment is caused, and the sealing effect is not ideal; 3. and the structures with smaller internal volumes such as the spring, the push ring and the like have defects in corrosion resistance and the like, the mechanical seal can be frequently failed due to corrosion, shutdown maintenance is required, the existing mechanism can not quickly and effectively observe whether leakage occurs, maintenance can be performed after complete disassembly, and the operation is more complicated.
Disclosure of Invention
The invention aims to provide a container type strong corrosion-resistant double-end-face mechanical seal, which aims to solve the problems that the sealing effect is poor after mechanical fatigue due to frequent expansion and contraction of a spring, sealing leakage is easy to occur, and corrosion-resistant effects of small parts in the spring and the like are poor, so that the service life is low, and sealing leakage of meat cannot be intuitively observed. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a collection dress type corrosion-resistant bi-polar face mechanical seal, includes the axis of rotation, the activity has cup jointed axle sleeve and strengthening mechanism in the axis of rotation, and the strengthening mechanism internal activity has cup jointed mechanical seal mechanism, and strengthening mechanism's upper end is fixed to be cup jointed on the axle sleeve, and mechanical seal mechanism activity cup joints in the axis of rotation, strengthening mechanism internal fixation has cup jointed the spacing collar, and strengthening mechanism's bottom fixedly connected with has negative pressure mechanism rather than inside intercommunication, cup jointed two clamp rings with the strengthening mechanism is last to be movable, and two clamp rings pass through two fastening bolt fixed connection.
Preferably, the reinforcing mechanism comprises a gland, the gland is movably sleeved on the shaft sleeve, the gland is fixedly connected with a limit sleeve below the gland through a first bolt, the limit sleeve is fixedly connected with a chassis below the gland through a second bolt, a deep groove ball bearing and a sealing gasket are movably sleeved in the gland, the deep groove ball bearing and the sealing gasket are movably sleeved on the shaft sleeve, an oil cavity is formed in the lower end of the inside of the limit sleeve, one side of the outer wall of the limit sleeve is fixedly connected with an oil delivery pipe communicated with the inside of the limit sleeve, the mechanical sealing mechanism is movably sleeved in the oil cavity, and the limit ring is fixedly connected with the top surface of the chassis.
Preferably, the mechanical sealing mechanism comprises a sealing sleeve, the sealing sleeve is movably sleeved on the rotating shaft, the upper end of the sealing sleeve is movably sleeved with a movable sleeve, the top of the sealing sleeve is movably connected with the top of the inner wall of the movable sleeve through a spring, the inner wall of the sealing sleeve is in sealing connection with the rotating shaft through a first sealing rubber ring which is movably nested, the inner wall of the movable sleeve is in sealing connection with the sealing sleeve through a second sealing rubber ring which is movably nested, the movable sleeve is movably overlapped with a movable ring, the top of the movable ring is movably overlapped with a stationary ring, the top and the inner wall of the stationary ring are respectively in sealing connection with the shaft sleeve and the rotating shaft through two third sealing rubber rings which are movably nested, an end face sealing pipe is movably sleeved on the stationary ring, and the inner wall of the lower end of the stationary ring is in fitting connection with the outer wall of the limiting ring.
Preferably, the negative pressure mechanism comprises a negative pressure pipe, the negative pressure pipe is fixedly connected to the bottom of the reinforcing mechanism, a movable plug is movably sleeved in the negative pressure pipe, the bottom of the movable plug is movably connected with a threaded screw rod below the movable plug through a bearing piece, a nut seat plate is sleeved on the threaded screw rod through threads, the nut seat plate is fixedly connected to the bottom of the negative pressure pipe, and the bottom of the threaded screw rod penetrates through the nut seat plate and is fixedly connected with a rotary handle below the threaded screw rod.
Preferably, a plurality of sealing rings are arranged on the inner side of the shaft sleeve, outer steps matched with the deep groove ball bearings and the sealing washers are respectively arranged on the outer wall of the shaft sleeve, the lower end of the shaft sleeve is movably lapped on an inner step arranged on the inner wall of the limiting sleeve, and one side of the oil delivery pipe is in sealing plug connection with an oil plug.
Preferably, the end face sealing tube is of a taper sleeve structure with the diameters sequentially increased from top to bottom, the inner diameter of the upper end of the end face sealing tube is matched with the diameter of the static ring, and the end face sealing tube is made of flexible metal.
Preferably, the inner diameter of the movable sleeve is equal to the inner diameter of the lower end of the sealing sleeve, the inner side of the upper end of the movable sleeve is movably inserted on an inner step matched with the upper end of the sealing sleeve, the number of the springs is a plurality of, and the springs are radially equidistantly arranged in a gap between the movable sleeve and the inner wall of the sealing sleeve.
Preferably, the bottom of the inner wall of the chassis is provided with a negative pressure hole penetrating to the bottom of the chassis and matched with the negative pressure mechanism, and the negative pressure hole is positioned at the inner side of the limit ring.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the spring is not required to be in contact with the movable ring through the arrangement of the movable sleeve, so that mechanical fatigue caused by the fact that the spring moves along with the movable sleeve to increase mechanical strength is avoided, the static ring is guaranteed to be attached to the movable ring, meanwhile, under the cooperation of the end face sealing pipe, the inner space of the oil cavity is separated, the inner wall of the middle part of the end face sealing pipe is promoted to be tightly pressed under the action of negative pressure, extension of an end face joint gap between the movable ring and the static ring is prevented, and sealing liquid filled in the outer edge gap is prevented from leaking.
According to the invention, through the matching of the negative pressure mechanism and the end face sealing pipe, when two end faces are misplaced, the sealing liquid leaks, so that the inner side negative pressure of the end face sealing pipe guides the leaked sealing liquid, the negative pressure generated by the negative pressure mechanism can attract the sealing liquid to enter the negative pressure pipe, so that the sealing liquid is further prevented from overflowing to pollute materials, the tightness is improved, meanwhile, whether the leakage condition exists can be intuitively observed by observing whether the sealing liquid exists inside the negative pressure pipe, whether maintenance is needed is judged, and the use safety of equipment is effectively improved.
According to the invention, the spring is positioned in the gap between the sealing sleeve and the movable sleeve through the matching of the sealing sleeve and the movable sleeve, and the inner gap of the second sealing rubber ring is not infected by corrosive liquid or gas under the arrangement of the second sealing rubber ring, so that the corrosion resistance of the spring is effectively improved, and the service life of the whole device is prolonged.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the structure of the present invention;
FIG. 3 is a front view of the structure of the present invention;
FIG. 4 is a side view of the structure of the present invention;
FIG. 5 is a side view of the structure of the present invention;
FIG. 6 is a top view of the structure of the present invention;
Fig. 7 is a bottom view of the structure of the present invention.
In the figure: 1. a rotating shaft; 2. a shaft sleeve; 3. a reinforcement mechanism; 301. a gland; 302. a first bolt; 303. a limit sleeve; 304. a second bolt; 305. a chassis; 306. deep groove ball bearings; 307. a sealing gasket; 308. an oil chamber; 309. an oil delivery pipe; 4. a mechanical seal mechanism; 401. sealing the sleeve; 402. a movable sleeve; 403. a spring; 404. a first sealing rubber ring; 405. the second sealing rubber ring; 406. a moving ring; 407. a stationary ring; 408. a third sealing rubber ring; 409. an end face seal tube; 5. a limit ring; 6. a negative pressure mechanism; 601. a negative pressure pipe; 602. a movable plug; 603. a bearing member; 604. a threaded screw rod; 605. a nut seat plate; 606. rotating the handle; 7. a clamping ring; 8. and (5) fastening a bolt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a collection dress type corrosion-resistant bi-polar face mechanical seal, including axis of rotation 1, the activity has cup jointed axle sleeve 2 and strengthening mechanism 3 on axis of rotation 1, and strengthening mechanism 3 internal activity has cup jointed mechanical seal mechanism 4, and strengthening mechanism 3's upper end is fixed to be cup jointed on axle sleeve 2, and mechanical seal mechanism 4 activity cup joints on axis of rotation 1, strengthening mechanism 3 internal fixation has cup jointed spacing collar 5, and strengthening mechanism 3's bottom fixedly connected with has negative pressure mechanism 6 rather than inside intercommunication, and strengthening mechanism 3 is last to be movable to cup jointed two clamp rings 7, and two clamp rings 7 pass through two fastening bolt 8 fixed connection.
In this embodiment, as shown in fig. 1,2, 3, 4, 5, 6 and 7, the reinforcement mechanism 3 includes a gland 301, the gland 301 is movably sleeved on the shaft sleeve 2, the gland 301 is fixedly connected with a stop collar 303 below the gland 301 through a first bolt 302, the stop collar 303 is fixedly connected with a chassis 305 below the stop collar 303 through a second bolt 304, a deep groove ball bearing 306 and a sealing gasket 307 are movably sleeved in the gland 301, the deep groove ball bearing 306 and the sealing gasket 307 are movably sleeved on the shaft sleeve 2, an oil cavity 308 is formed at the lower end inside the stop collar 303, an oil delivery pipe 309 communicated with the inside is fixedly connected to one side of the outer wall of the stop collar 303, the mechanical sealing mechanism 4 is movably sleeved in the oil cavity 308, and the stop collar 5 is fixedly connected to the top surface of the chassis 305.
In this embodiment, as shown in fig. 2, the mechanical sealing mechanism 4 includes a sealing sleeve 401, the sealing sleeve 401 is movably sleeved on the rotating shaft 1, the upper end of the sealing sleeve 401 is movably sleeved with a movable sleeve 402, the top of the sealing sleeve 401 is movably connected with the top of the inner wall of the movable sleeve 402 through a spring 403, the inner wall of the sealing sleeve 401 is hermetically connected with the rotating shaft 1 through a first sealing rubber ring 404 movably sleeved with the sealing sleeve 401, the inner wall of the movable sleeve 402 is hermetically connected with the sealing sleeve 401 through a second sealing rubber ring 405 movably sleeved with a movable ring 406, the top of the movable ring 406 is movably sleeved with a static ring 407, the top and the inner wall of the static ring 407 are respectively hermetically connected with the shaft sleeve 2 and the rotating shaft 1 through two third sealing rubber rings 408 movably sleeved with an end face sealing tube 409, the inner wall of the lower end of the static ring 407 is in an attaching connection with the outer wall of the limit ring 5, the surfaces of the movable sleeve 402 and the sealing sleeve 401 are coated with a coating, the surfaces of the sealing sleeve 401 and the movable sleeve 402 are made in a gap between by the cooperation of the sealing sleeve 402, the movable sleeve 402 and the movable sleeve 402, the gap between the spring 403 is made, the gap inside the second sealing ring 405 is not set, the gap is made, the liquid inside the gap is not or the gap is not made, the corrosion resistance of the device is effectively improved, and the corrosion resistance is effectively is prolonged.
In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 7, the negative pressure mechanism 6 includes a negative pressure pipe 601, and the negative pressure pipe 601 is fixedly connected to the bottom of the reinforcing mechanism 3, the movable plug 602 is movably sleeved in the negative pressure pipe 601, and the bottom of the movable plug 602 is movably connected with the threaded screw 604 below the movable plug through the bearing member 603, the threaded screw 604 is threaded and sleeved with the nut seat plate 605, and the nut seat plate 605 is fixedly connected to the bottom of the negative pressure pipe 601, the bottom of the threaded screw 604 penetrates the nut seat plate 605 and is fixedly connected with the rotating handle 606 below the threaded screw seat plate, when two end surfaces are misplaced, the sealing liquid leaks, so that the negative pressure inside the end surface sealing pipe 409 guides the leaked sealing liquid, the negative pressure generated by the negative pressure mechanism 6 can attract the sealing liquid to enter the negative pressure pipe 601, further avoid the sealing liquid overflowing to pollute materials, and meanwhile, by observing whether the sealing liquid inside the negative pressure pipe 601 has visual observation whether a leakage condition exists, whether the device needs to be overhauled or not, and the use safety of the device is effectively improved.
In this embodiment, as shown in fig. 1, 2, 3, 4, 5, 6 and 7, a plurality of sealing rings are disposed on the inner side of the sleeve 2, outer steps matched with the deep groove ball bearing 306 and the sealing washer 307 are respectively disposed on the outer wall of the sleeve 2, the lower end of the sleeve 2 is movably lapped on an inner step disposed on the inner wall of the limiting sleeve 303, and an oil plug is inserted into one side of the oil delivery pipe 309 in a sealing manner.
In this embodiment, as shown in fig. 2, the end face seal tube 409 has a tapered sleeve structure with a diameter that increases from top to bottom, the inner diameter of the upper end of the end face seal tube 409 is matched with the diameter of the stationary ring 407, and the end face seal tube 409 is made of flexible metal.
In this embodiment, as shown in fig. 2, the inner diameter of the movable sleeve 402 is equal to the inner diameter of the lower end of the sealing sleeve 401, the inner side of the upper end of the movable sleeve 402 is movably inserted on an inner step formed at the upper end of the sealing sleeve 401 and matched with the inner step, the number of springs 403 is a plurality, the plurality of springs 403 are radially equidistantly arranged in a gap between the movable sleeve 402 and the inner wall of the sealing sleeve 401, the springs 403 do not need to be in contact with the movable ring 406 through the arrangement of the movable sleeve 402, the mechanical fatigue caused by the mechanical strength of the springs 403 is avoided due to the movement increase of the springs 403, so that the stationary ring 407 is attached to the movable ring 406, the inner space of the oil cavity 308 is separated under the cooperation of the end face sealing tube 409, the inner wall of the middle part of the end face sealing tube 409 is pressed under the action of negative pressure, extension of an end face joint gap between the movable ring 406 and the stationary ring 407 is prevented, and leakage of sealing liquid filled along the outer edge gap is prevented.
In this embodiment, as shown in fig. 1,2,3, 4,5, 6 and 7, a negative pressure hole penetrating to the bottom of the inner wall of the chassis 305 and matching with the negative pressure mechanism 6 is formed at the bottom of the inner wall of the chassis, and the negative pressure hole is located inside the limit ring 5.
The application method and the advantages of the invention are as follows: when the container type strong corrosion-resistant double-end-face mechanical seal is used, the working process is as follows:
As shown in fig. 1, 2, 3, 4, 5, 6 and 7, in operation, the device can clamp two clamping rings 7 on a shaft sleeve 2 through two fastening bolts 8, so that the shaft sleeve 2 is sleeved with a rotating shaft 1, the rotating shaft 1 rotates, and a movable sleeve 402 is pushed upwards through a spring 403, so that a movable ring 406 is attached to the end face of a stationary ring 407;
under the cooperation of the end face sealing pipe 409, the inner space of the oil cavity 308 is partitioned, and under the action of negative pressure, air in the middle of the end face sealing pipe 409 is pumped out, so that the inner wall of the end face sealing pipe is tightly attached to an outer wall gap where the movable ring 406 and the stationary ring 407 are connected, the extension of an end face joint gap between the movable ring 406 and the stationary ring 407 is prevented, sealing liquid filled in the outer edge gap is prevented from leaking, and the sealing performance is improved;
Through oil delivery pipe 309, add the sealing fluid to oil pocket 308, when two terminal surfaces dislocation, the sealing fluid is revealed, make terminal surface sealing tube 409 inboard negative pressure guide the sealing fluid that leaks, negative pressure mechanism 6 accessible rotates rotatory handle 606 and drives screw rod 604 and reciprocate adjustable movable stopper 602 position, thereby the negative pressure intensity in the stable control negative pressure pipe 601, make its air at terminal surface sealing tube 409 middle part of can extracting, the negative pressure of this production can attract sealing fluid to get into negative pressure pipe 601, further avoid sealing fluid excessive pollution material, improve the leakproofness, whether the leak condition exists through observing the inside sealing fluid that has of negative pressure pipe 601 can be audio-visually observed simultaneously, judge whether need overhaul, the effectual equipment safety in utilization that has improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a collection dress formula corrosion-resistant bi-polar face mechanical seal, includes axis of rotation (1), its characterized in that: the device is characterized in that a shaft sleeve (2) and a reinforcing mechanism (3) are movably sleeved on the rotating shaft (1), a mechanical sealing mechanism (4) is movably sleeved in the reinforcing mechanism (3), the upper end of the reinforcing mechanism (3) is fixedly sleeved on the shaft sleeve (2), the mechanical sealing mechanism (4) is movably sleeved on the rotating shaft (1), a limit ring (5) is fixedly sleeved in the reinforcing mechanism (3), a negative pressure mechanism (6) is fixedly connected with the bottom end of the reinforcing mechanism (3) and communicated with the inside of the reinforcing mechanism, two clamping rings (7) are movably sleeved on the reinforcing mechanism (3), and the two clamping rings (7) are fixedly connected through two fastening bolts (8);
The mechanical sealing mechanism (4) comprises a sealing sleeve (401), the sealing sleeve (401) is movably sleeved on the rotating shaft (1), the upper end of the sealing sleeve (401) is movably sleeved with a movable sleeve (402), the top of the sealing sleeve (401) is movably connected with the top of the inner wall of the movable sleeve (402) through a spring (403), the inner wall of the sealing sleeve (401) is in sealing connection with the rotating shaft (1) through a first sealing rubber ring (404) which is movably sleeved, the inner wall of the movable sleeve (402) is in sealing connection with the sealing sleeve (401) through a second sealing rubber ring (405) which is movably sleeved, the movable sleeve (402) is movably sleeved with a movable ring (406), the top of the movable ring (406) is movably sleeved with a static ring (407), the top and the inner wall of the static ring (407) are respectively in sealing connection with the shaft sleeve (2) and the rotating shaft (1) through two third sealing rubber rings (408) which are movably sleeved, the inner wall of the static ring (407) is movably sleeved with an end face sealing pipe (409), and the inner wall of the lower end of the static ring (407) is in fitting connection with the outer wall of the limiting ring (5);
The end face sealing tube (409) is of a taper sleeve structure with the diameters sequentially increased from top to bottom, the inner diameter of the upper end of the end face sealing tube (409) is matched with the diameter of the stationary ring (407), and the end face sealing tube (409) is made of flexible metal;
the inner diameter of the movable sleeve (402) is equal to the inner diameter of the lower end of the sealing sleeve (401), the inner side of the upper end of the movable sleeve (402) is movably inserted on an inner step matched with the upper end of the sealing sleeve (401), the number of the springs (403) is a plurality of springs, and the plurality of springs (403) are radially equidistantly arranged in a gap between the movable sleeve (402) and the inner wall of the sealing sleeve (401).
2. The cartridge type strong corrosion resistant double-ended mechanical seal of claim 1, wherein: the reinforcing mechanism (3) comprises a gland (301), the gland (301) is movably sleeved on the shaft sleeve (2), the gland (301) is fixedly connected with a limiting sleeve (303) below the gland through a first bolt (302), the limiting sleeve (303) is fixedly connected with a chassis (305) below the gland through a second bolt (304), a deep groove ball bearing (306) and a sealing gasket (307) are movably sleeved in the gland (301), the deep groove ball bearing (306) and the sealing gasket (307) are movably sleeved on the shaft sleeve (2), an oil cavity (308) is formed in the lower end of the inside of the limiting sleeve (303), one side of the outer wall of the limiting sleeve (303) is fixedly connected with an oil conveying pipe (309) communicated with the inside of the limiting sleeve, the mechanical sealing mechanism (4) is movably sleeved in the oil cavity (308), and the limiting ring (5) is fixedly connected with the top surface of the chassis (305).
3. The cartridge type strong corrosion resistant double-ended mechanical seal of claim 1, wherein: negative pressure mechanism (6) are including negative pressure pipe (601), and negative pressure pipe (601) fixed connection is in the bottom of strengthening mechanism (3), movable plug (602) has been cup jointed to negative pressure pipe (601) internal activity, and the bottom of movable plug (602) is through screw thread lead screw (604) swing joint of bearing piece (603) and its below, screw thread has cup jointed nut bedplate (605) on screw thread lead screw (604), and nut bedplate (605) fixed connection is in the bottom of negative pressure pipe (601), the bottom of screw thread lead screw (604) runs through nut bedplate (605) and rather than rotatory handle (606) fixed connection of below.
4. The cartridge type strong corrosion resistant double-ended mechanical seal of claim 2, wherein: the inner side of the shaft sleeve (2) is provided with a plurality of sealing rings, the outer wall of the shaft sleeve (2) is respectively provided with an outer step matched with the deep groove ball bearing (306) and the sealing gasket (307), the lower end of the shaft sleeve (2) is movably lapped on an inner step arranged on the inner wall of the limiting sleeve (303), and one side of the oil conveying pipe (309) is in sealing plug connection with an oil plug.
5. The cartridge type strong corrosion resistant double-ended mechanical seal of claim 2, wherein: the bottom of the inner wall of the chassis (305) is provided with a negative pressure hole which penetrates to the bottom of the chassis and is matched with the negative pressure mechanism (6), and the negative pressure hole is positioned at the inner side of the limit ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111421305.6A CN114060524B (en) | 2021-11-26 | 2021-11-26 | Packaging type strong corrosion-resistant double-end-face mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111421305.6A CN114060524B (en) | 2021-11-26 | 2021-11-26 | Packaging type strong corrosion-resistant double-end-face mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114060524A CN114060524A (en) | 2022-02-18 |
| CN114060524B true CN114060524B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111421305.6A Active CN114060524B (en) | 2021-11-26 | 2021-11-26 | Packaging type strong corrosion-resistant double-end-face mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114060524B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3499653A (en) * | 1968-06-05 | 1970-03-10 | Crane Packing Co | Rotary mechanical seal of the gap type |
| CN203926781U (en) * | 2014-07-02 | 2014-11-05 | 宁波精科机械密封件制造有限公司 | A kind of mechanical seal device of anti-corrosive pump |
| CN105952902A (en) * | 2016-06-20 | 2016-09-21 | 成都通密封股份有限公司 | Mechanical seal |
| CN106168290A (en) * | 2016-08-25 | 2016-11-30 | 武汉船用机械有限责任公司 | A kind of mechanically-sealing apparatus |
| CN206626181U (en) * | 2017-03-24 | 2017-11-10 | 青岛航保机电设备有限公司 | The safe mechanically-sealing apparatus of rotating |
| CN207034181U (en) * | 2017-07-19 | 2018-02-23 | 江苏华青流体科技有限公司 | A kind of stirrer mechanical seal device of detectable leakage |
| CN111102356A (en) * | 2020-01-13 | 2020-05-05 | 西安瑞联新材料股份有限公司 | Double-end-face mechanical seal |
| CN212868454U (en) * | 2020-08-05 | 2021-04-02 | 淄博诺方德化工装备科技有限公司 | Mechanical seal for preventing leakage of sealing liquid |
| CN213039823U (en) * | 2020-07-21 | 2021-04-23 | 永嘉县环球机械密封件厂 | High-temperature-resistant mechanical seal |
| CN214093048U (en) * | 2020-11-03 | 2021-08-31 | 天长市金祝机械密封件有限公司 | Double-end-face mechanical seal assembly |
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| US6464231B2 (en) * | 2000-12-20 | 2002-10-15 | Flowserve Management Company | Bellows seal with spring-loaded radial secondary seal |
| CN110030383A (en) * | 2019-04-10 | 2019-07-19 | 艾志（南京）环保管接技术股份有限公司 | The interior liquid mechanical seal with axial floating pallet set |
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| US3499653A (en) * | 1968-06-05 | 1970-03-10 | Crane Packing Co | Rotary mechanical seal of the gap type |
| CN203926781U (en) * | 2014-07-02 | 2014-11-05 | 宁波精科机械密封件制造有限公司 | A kind of mechanical seal device of anti-corrosive pump |
| CN105952902A (en) * | 2016-06-20 | 2016-09-21 | 成都通密封股份有限公司 | Mechanical seal |
| CN106168290A (en) * | 2016-08-25 | 2016-11-30 | 武汉船用机械有限责任公司 | A kind of mechanically-sealing apparatus |
| CN206626181U (en) * | 2017-03-24 | 2017-11-10 | 青岛航保机电设备有限公司 | The safe mechanically-sealing apparatus of rotating |
| CN207034181U (en) * | 2017-07-19 | 2018-02-23 | 江苏华青流体科技有限公司 | A kind of stirrer mechanical seal device of detectable leakage |
| CN111102356A (en) * | 2020-01-13 | 2020-05-05 | 西安瑞联新材料股份有限公司 | Double-end-face mechanical seal |
| CN213039823U (en) * | 2020-07-21 | 2021-04-23 | 永嘉县环球机械密封件厂 | High-temperature-resistant mechanical seal |
| CN212868454U (en) * | 2020-08-05 | 2021-04-02 | 淄博诺方德化工装备科技有限公司 | Mechanical seal for preventing leakage of sealing liquid |
| CN214093048U (en) * | 2020-11-03 | 2021-08-31 | 天长市金祝机械密封件有限公司 | Double-end-face mechanical seal assembly |
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| Publication number | Publication date |
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| CN114060524A (en) | 2022-02-18 |
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