CN218761414U - Shaft sealing device for ABS vertical polymerization kettle - Google Patents
Shaft sealing device for ABS vertical polymerization kettle Download PDFInfo
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- CN218761414U CN218761414U CN202222614511.5U CN202222614511U CN218761414U CN 218761414 U CN218761414 U CN 218761414U CN 202222614511 U CN202222614511 U CN 202222614511U CN 218761414 U CN218761414 U CN 218761414U
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Abstract
The utility model provides a shaft sealing device for an ABS vertical polymerization kettle, the ABS vertical polymerization kettle is provided with a stirring port, a flange seat is fixed on the ABS vertical polymerization kettle corresponding to the stirring port, a rotating shaft passes through an inner hole of the flange seat and is rotationally connected with the flange seat, and a flushing fluid inlet and a flushing fluid outlet which are communicated with the inner hole of the flange seat are arranged on the flange seat along the radial direction of the rotating shaft; radial seal spare includes annular pressing plate, sealing washer, annular fixing base and first axle sleeve, and first axle sleeve cover is established and is fixed in the pivot, and annular fixing base top extends last annular plate to the pivot, and the bottom extends lower annular plate to flange seat inner hole wall, and lower annular plate passes through the fix with screw on the flange seat, and annular pressing plate is fixed under on the annular plate, and the one end of flange seat is kept away from at the seal receptacle is installed to the oil blanket spare, the utility model provides a pair of a vertical polymerization shaft seal device for cauldron of ABS belongs to mechanical rotary seal technical field, can wash the crystallization of adhering to on mechanical seal face and sealing washer and prevent that the flush fluid from getting into in the cauldron.
Description
Technical Field
The utility model relates to a vertical shaft seal device for polymeric kettle of ABS belongs to mechanical rotary seal technical field.
Background
The ABS polymerization kettle is a place for carrying out emulsion graft polymerization reaction, and comprises an ABS device and core equipment, wherein a stirrer is arranged in the polymerization kettle and is driven by a motor through a transmission mechanism and a speed reducer, and the transmission mechanism and a kettle body are generally sealed by adopting packing and mechanical sealing. The packing seal is a blocking seal, the packing rotates along with the stirring shaft, the packing is fast worn and short in service life under the rotating condition, and meanwhile, the worn packing can fall into the kettle to pollute products.
CN114017506A discloses a no-leakage sealing device for ABS polymeric kettle, which adopts mechanical sealing, wherein the sealing liquid medium plays a role of oil seal in the sealing device and also lubricates the bearing, but the sealing device is usually affected by high temperature and high pressure at the top of the kettle body, because the sealing medium has low boiling point, high vapor pressure and poor sealing effect, and the substances reacted in the polymeric kettle are easy to gasify to form crystals which are attached to the sealing surface and the sealing ring, resulting in failure of the sealing ring and short service life, the sealing position needs to be cleaned.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a vertical shaft seal device for polymeric kettle of ABS is provided, can wash the crystallization of adhering to on the mechanical seal face and sealing washer and prevent that the flush fluid from getting into in the cauldron.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a shaft sealing device for an ABS vertical polymerization kettle is provided, wherein a stirring port is formed in the ABS vertical polymerization kettle, a rotating shaft penetrates into the stirring port and is rotatably connected with the stirring port, the shaft sealing device comprises a flange seat, the flange seat is fixed on the ABS vertical polymerization kettle corresponding to the stirring port, the rotating shaft penetrates through an inner hole of the flange seat and is rotatably connected with the flange seat, and a flushing fluid inlet and a flushing fluid outlet which are communicated with the inner hole of the flange seat are formed in the flange seat along the radial direction of the rotating shaft;
the radial sealing element comprises an annular pressing plate, a sealing ring, an annular fixing seat and a first shaft sleeve, the first shaft sleeve is sleeved and fixed on the rotating shaft, the top of the annular fixing seat extends out of an upper annular plate towards the rotating shaft, the bottom of the annular fixing seat extends out of a lower annular plate towards the inner hole wall of the flange seat, the lower annular plate is fixed on the flange seat through a screw, the annular pressing plate is fixed on the lower annular plate, the sealing ring is embedded into an annular groove formed by the annular pressing plate, the inner wall of the annular fixing seat and the upper annular plate, and the sealing ring is connected with the outer wall of the first shaft sleeve in a sealing mode;
the bottom of the sealing seat is hermetically connected with the top of the flange seat, and an installation gap is formed between the inner wall of the sealing seat and the rotating shaft;
the oil seal piece is installed at one end, far away from the flange seat, of the seal seat so as to seal the installation gap;
and the mechanical sealing element is arranged in the mounting gap, the lower end of the mechanical sealing element is fixed on the flange seat, and the upper end of the mechanical sealing element is fixed on the oil seal element.
The utility model has the advantages that: the flange seat corresponds the stirring mouth and fixes on the vertical polymeric kettle of ABS, the hole entering stirring mouth of flange seat is passed in the pivot, the hole rigidity that first axle sleeve corresponds the flange seat is in changeing epaxially, annular fixing base is located the flange seat hole, lower annular plate is fixed on the flange seat, go up the annular plate, annular fixing base inner wall and annular baffle form the ring channel that a notch corresponds first axle sleeve, the sealing washer is fixed in the ring channel and with first axle sleeve sealing connection, form first sealing between pivot and the stirring mouth, export the flush fluid import from the flush fluid, the flush fluid gets into the hole of flange seat, will adhere to at the pivot lateral wall, the crystallization that sealing washer and first axle were sheathe in washes and export the output from the flush fluid, improve radial sealing member's life, and the sealing washer prevents that the flush fluid from getting into in the cauldron thereupon, influence product in the cauldron.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the L-shaped shaft sleeve is sleeved and fixed on the rotating shaft, and an O-shaped ring is installed between the horizontal section of the L-shaped shaft sleeve and the inner hole wall of the flange seat to seal a gap between the L-shaped shaft sleeve and the inner hole wall of the flange seat.
Adopt the beneficial effect of above-mentioned further scheme: the O-shaped ring improves the sealing effect between the L-shaped shaft sleeve and the inner hole of the flange seat.
The sealing device further comprises a second shaft sleeve, wherein the second shaft sleeve is fixed on the rotating shaft, the bottom of the second shaft sleeve is wrapped and fixed on the vertical section of the L-shaped shaft sleeve, and a plurality of O-shaped rings are fixed between the second shaft sleeve and the rotating shaft so as to seal a gap between the second shaft sleeve and the rotating shaft.
The beneficial effect of adopting the further scheme is as follows: the second shaft sleeve is wrapped and fixed on the vertical section of the L-shaped shaft sleeve, so that the sealing effect between the second shaft sleeve and the L-shaped shaft sleeve is improved; the O-shaped ring improves the sealing effect between the second shaft sleeve and the rotating shaft.
Further, mechanical seal includes lower sealing member, lower sealing member includes first quiet ring, first rotating ring, first spring holder and first compression spring, first quiet ring cover is established the second shaft is sheathe in and is fixed on the flange seat, first spring holder cover is established and is fixed the second shaft is sheathe in, first rotating ring with first compression spring cover is established and sliding connection is in on the second shaft, first compression spring both ends respectively with first spring holder with first rotating ring butt, so that first rotating ring compresses tightly first quiet ring.
The beneficial effect of adopting the further scheme is as follows: the first movable ring rotates along with the second shaft sleeve and can slide on the second shaft sleeve along the axial direction of the rotating shaft, the first movable ring is tightly pressed on the first stationary ring at all times by the first compression spring, the sliding contact surface of the first movable ring and the first stationary ring is a sealing surface, an extremely thin liquid film is maintained between the two end surfaces of the first movable ring and the first stationary ring, and the extremely thin liquid film has dynamic pressure and static pressure in flowing, so that the first movable ring has a lubricating effect on the end surface and a long service life, and the second movable ring has a function of balancing pressure on the other hand, and good sealing performance is obtained.
Further, mechanical seal includes the sealing member, it includes second quiet ring, second rotating ring, second spring holder and second compression spring to go up the sealing member, the quiet ring cover of second is established on the second shaft cover and with oil seal bottom fixed connection, the second spring holder cover is established and is fixed on the second shaft cover, the second rotating ring with second compression spring cover is established and sliding connection is in on the second shaft cover, second compression spring both ends respectively with the second spring holder with the butt of second rotating ring, so that the second rotating ring compresses tightly the quiet ring of second.
The beneficial effect of adopting the further scheme is as follows: the upper sealing piece and the lower sealing piece simultaneously seal the rotating shaft, and the sealing effect is better.
Further, the oil seal spare includes quiet ring seat, bearing frame, goes up oil blanket, lower oil blanket and gland, quiet ring seat cover is established on the second shaft cover and its bottom with seal receptacle top fixed connection, the quiet ring of second with quiet ring seat bottom fixed connection, the bearing frame is fixed on the quiet ring seat, the inner circle cover of bearing is established and is fixed on the second shaft cover, the outer lane with bearing frame inner wall fixed connection, go up the oil blanket with the oil blanket is established down on the second shaft cover, and be located both sides about the bearing, the gland corresponds a through-hole is seted up to the second shaft cover, the gland lid is established on the bearing frame.
Adopt the beneficial effect of above-mentioned further scheme: the bearing seat and the bearing prevent the rotating shaft from shaking, so that the stability is improved; the upper oil seal and the lower oil seal a space formed by the gland, the static ring seat and the bearing seat.
Further, the oil seal piece still includes retaining ring and packing ring, the retaining ring cover is established on the second shaft cover and is located the bearing with go up between the oil blanket, the packing ring cover is established on the second shaft cover and is located oil blanket inner circle down.
The beneficial effect of adopting the further scheme is as follows: the retainer ring reduces the friction strength between the upper oil seal and the bearing; the gasket reduces the friction strength between the lower oil seal and the second shaft sleeve, and the service life is prolonged.
Furthermore, the bottom of the sealing seat is fixed to the top of the flange seat, a sealing liquid inlet communicated with the mounting gap is formed in the sealing seat, and a sealing liquid outlet communicated with the mounting gap is formed in the static ring seat.
The beneficial effect of adopting the further scheme is as follows: the sealing liquid enters the installation gap from the sealing liquid inlet, and the upper sealing element and the lower sealing element are immersed in the sealing liquid to be sealed.
Furthermore, a cooling water annular groove is formed in the bottom of the flange seat along the axial direction of the flange seat, a cooling water inlet and a cooling water outlet which are communicated with the annular groove are formed in the radial direction of the flange seat, and the cooling water annular groove is connected with the top of the ABS vertical polymerization kettle in a sealing mode.
The beneficial effect of adopting the further scheme is as follows: because the polymerization process can release a large amount of heat, if the heat is not taken away in time, the temperature of the material can be increased too fast, so that the damage is brought, cold water enters the cooling water annular groove from the cooling water inlet, is output from the cooling water outlet, takes away the heat, and cools the flange seat.
Further, still include the retaining member, the retaining member cover is established in order to lock on the second shaft cover with the pivot.
The beneficial effect of adopting the further scheme is as follows: the second shaft sleeve and the rotating shaft are prevented from rotating relatively, and the sealing stability of the radial sealing element and the mechanical sealing element is improved.
Drawings
FIG. 1 is a semi-sectional view of a shaft sealing device for an ABS vertical polymerizer according to the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1-locking piece, 2-flange seat, 21-flushing liquid inlet, 22-flushing liquid outlet, 23-cooling water inlet, 24-cooling water outlet, 3-radial sealing piece, 31-annular pressing plate, 32-sealing ring, 33-annular fixed seat, 34-first shaft sleeve, 4-sealing seat, 41-installation gap, 42-sealing liquid inlet, 43-sealing liquid outlet, 45-cooling liquid inlet, 46-cooling liquid outlet, 47-spiral groove, 5-oil sealing piece, 51-stationary ring seat, 52-bearing, 53-bearing seat, 54-upper oil seal, 55-lower oil seal, 56-pressing cover, 57-check ring, 58-gasket, 6-mechanical sealing piece, 61-lower sealing piece, 611-first stationary ring, 612-first stationary ring, 613-first spring seat, 614-first compression spring, 62-upper sealing piece, 621-second stationary ring, 622-second stationary ring, 623-second compression spring, 624-second compression spring, 7-L-shaped shaft sleeve, 8-L-second shaft sleeve, 8-9-pin shaft sleeve, and 10-mounting gap.
Detailed Description
The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.
The utility model aims at providing a vertical shaft seal device for polymeric kettle of ABS to solve the problem that prior art exists, can wash the crystallization of adhering to on mechanical seal face and sealing washer and prevent that the flush fluid from getting into in the cauldron.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a shaft sealing device for an ABS vertical polymerization kettle, in the embodiment of the utility model, as shown in figures 1-2, the ABS vertical polymerization kettle is provided with a stirring port, a rotating shaft penetrates into the stirring port and is rotationally connected with the stirring port, the shaft comprises a flange seat 2, the flange seat 2 is fixed on the ABS vertical polymerization kettle corresponding to the stirring port, the rotating shaft penetrates through an inner hole of the flange seat 2 and is rotationally connected with the flange seat, and a flushing fluid inlet 21 and a flushing fluid outlet 22 which are communicated with the inner hole of the flange seat 2 are arranged on the flange seat 2 along the radial direction of the rotating shaft;
the radial sealing element 3, the radial sealing element 3 includes the annular pressing plate 31, the seal ring 32, the annular fixed seat 33 and the first shaft sleeve 34, the first shaft sleeve 34 is sleeved and fixed on the rotating shaft, the top of the annular fixed seat 33 extends out of an upper annular plate towards the rotating shaft, the bottom extends out of a lower annular plate towards the inner hole wall of the flange seat 2, the lower annular plate is fixed on the flange seat 2 through the screw 10, the annular pressing plate 31 is fixed on the lower annular plate, the seal ring 32 is embedded into an annular groove formed by the annular pressing plate 31, the inner wall of the annular fixed seat 33 and the upper annular plate, and the seal ring 32 is connected with the outer wall of the first shaft sleeve 34 in a sealing manner;
the bottom of the sealing seat 4 is hermetically connected with the top of the flange seat 2, and an installation gap 41 is formed between the inner wall of the sealing seat 4 and the rotating shaft;
the oil seal piece 5 is installed at one end, far away from the flange seat 2, of the seal seat 4, and used for sealing the installation gap 41;
and the mechanical sealing element 6 is arranged in the installation gap 41, the lower end of the mechanical sealing element 6 is fixed on the flange seat 2, and the upper end of the mechanical sealing element 6 is fixed on the oil seal 5.
The utility model provides a vertical shaft seal device for polymeric kettle of ABS, flange seat 2 corresponds the stirring mouth and fixes on the vertical polymeric kettle of ABS, the hole that flange seat 2 was rotated in the pivot gets into the stirring mouth, the hole rigidity that first axle sleeve 34 corresponds flange seat 2 is in the pivot, annular fixing base 33 is located flange seat 2 holes, lower annular plate is fixed on flange seat 2, go up the annular plate, annular fixing base 33 inner wall and ring baffle form the ring channel that a notch corresponds first axle sleeve 34, sealing washer 32 is fixed in the ring channel and with first axle sleeve 34 sealing connection, it is sealed first way to form between pivot and the stirring mouth, export flush fluid from flush fluid import 21, the flush fluid gets into the hole of flange seat 2, will adhere to the pivot lateral wall, the crystallization on sealing washer 32 and the first axle sleeve 34 is washed and is exported from flush fluid export 22, improve radial seal member 3's life, and sealing washer 32 prevents that the flush fluid from getting into in the cauldron thereupon, influence the interior product of cauldron.
Preferably, a plurality of O-rings are fixed between the first sleeve 34 and the rotating shaft to seal the gap between the first sleeve 34 and the rotating shaft.
Preferably, a spiral groove 47 which spirals upwards along the axial direction of the sealing seat is formed in the side wall of the sealing seat, a cooling liquid inlet 45 and a cooling liquid outlet 46 which are communicated with the spiral groove are formed in the side wall, and the cooling liquid inlet 45 is positioned below the cooling liquid outlet 46.
Preferably, a plurality of O-shaped rings are fixed at the bottom of the flange seat and the top of the polymerization kettle.
The utility model discloses a concrete embodiment, still include L type axle sleeve 7,L type 7 covers and establish and fix in the pivot, install O type circle between the interior pore wall of L type axle sleeve 7 horizontal segment and flange seat 2 to the clearance between the interior pore wall of sealed L type axle sleeve 7 and flange seat 2.
The O-shaped ring improves the sealing effect between the L-shaped shaft sleeve 7 and the inner hole of the flange seat 2.
The utility model relates to an in the embodiment, including second shaft sleeve 8, second shaft sleeve 8 is fixed in the pivot and the bottom parcel is fixed on the vertical section of L type shaft sleeve 7, is fixed with a plurality of O type circles between second shaft sleeve 8 and the pivot to the clearance between sealed second shaft sleeve 8 and the pivot.
The second shaft sleeve 8 is wrapped and fixed on the vertical section of the L-shaped shaft sleeve 7, so that the sealing effect between the second shaft sleeve 8 and the L-shaped shaft sleeve 7 is improved; the O-shaped ring improves the sealing effect between the second shaft sleeve 8 and the rotating shaft.
The utility model discloses a specific embodiment, mechanical seal 6 includes lower sealing member 61, lower sealing member 61 includes first quiet ring 611, first rotating ring 612, first spring holder 613 and first compression spring 641, first quiet ring 611 cover is established on second shaft sleeve 8 and is fixed on flange seat 2, first spring holder 613 cover is established and is fixed on second shaft sleeve 8, first rotating ring 612 and first compression spring 641 cover are established and sliding connection is on second shaft sleeve 8, first compression spring 641 both ends respectively with first spring holder 613 and first rotating ring 612 butt to make first rotating ring 612 compress tightly first quiet ring 611.
The first rotating ring 612 rotates with the second sleeve 8 and can slide on the second sleeve 8 along the axial direction of the rotating shaft, the first compression spring 641 always presses the first rotating ring 612 against the first stationary ring 611, the sliding contact surface between the first rotating ring 612 and the first stationary ring 611 is a sealing surface, a layer of ultrathin liquid film is maintained between the two end surfaces of the first rotating ring 612 and the first stationary ring 611, and the ultrathin liquid film has dynamic pressure and static pressure of flow, so that the first rotating ring has a lubricating effect on the end surfaces on one hand, has a long service life, and has a function of balancing pressure on the other hand, thereby obtaining good sealing performance.
Preferably, the first stationary ring 611 and the flange seat 2 are fixedly connected by a pin 9.
The utility model discloses an in the embodiment, mechanical seal 6 includes sealing member 62, it includes second quiet ring 621 to go up sealing member 62, second rotating ring 622, second spring holder and second compression spring 623, the quiet ring 621 cover of second is established on second shaft sleeve 8 and with 5 bottom fixed connection of oil seal, the second spring holder cover is established and is fixed on second shaft sleeve 8, second rotating ring 622 and second compression spring 623 cover are established and sliding connection on second shaft sleeve 8, second compression spring 623 both ends respectively with second spring holder and second rotating ring 622 butt, so that second rotating ring 622 compresses tightly second quiet ring 621.
The upper sealing piece 62 and the lower sealing piece 61 simultaneously seal the rotating shaft, and the sealing effect is better.
Preferably, a plurality of O-rings are fixed between the first rotating ring and the second shaft sleeve.
The utility model discloses an in the embodiment, oil seal spare 5 includes quiet ring holder 51, bearing 52, bearing frame 53, go up oil seal 54, oil seal 55 and gland 56 down, quiet ring holder 51 cover is established on second axle sleeve 8 and its bottom and 4 top fixed connection of seal receptacle, second quiet ring 621 and quiet ring holder 51 bottom fixed connection, bearing frame 53 is fixed on quiet ring holder 51, the inner circle cover of bearing 52 is established and is fixed on second axle sleeve 8, outer lane and the inner wall fixed connection of bearing frame 53, it establishes on second axle sleeve 8 to go up oil seal 54 and lower oil seal 55 cover, and be located bearing 52 upper and lower both sides, gland 56 corresponds second axle sleeve 8 and sets up a through-hole, gland 56 covers and establishes on bearing frame 53.
The bearing seat 53 and the bearing 52 prevent the rotating shaft from shaking, so that the stability is improved; the upper oil seal 54 and the lower oil seal 55 seal the space formed by the gland 56, the stationary ring seat 51 and the bearing seat 53.
Preferably, the second stationary ring 621 is fixedly connected with the stationary ring seat 51 by a pin 9.
The utility model discloses an in the embodiment, oil seal 5 still includes retaining ring 57 and packing ring 58, and retaining ring 57 cover is established on second shaft sleeve 8 and is located between bearing 52 and the last oil blanket 54, and packing ring 58 cover is established on second shaft sleeve 8 and is located down oil blanket 55 inner circle.
The retainer ring 57 reduces the friction strength between the upper oil seal 54 and the bearing 52; the washer 58 reduces the friction strength between the lower oil seal 55 and the second bushing 8, and improves the service life.
The utility model relates to an in the embodiment, 4 bottoms of seal receptacle are fixed at flange seat 2 tops, offer a sealed liquid import 42 that communicates erection space 41 on the seal receptacle 4, offer the sealed liquid export 43 that communicates erection space 41 on the stationary ring seat 51.
The sealing liquid enters the mounting gap 41 from the sealing liquid inlet 42, and the upper sealing member 62 and the lower sealing member 61 are immersed in the sealing liquid to perform sealing.
The utility model relates to an in the concrete embodiment, set up the cooling water annular groove in flange seat 2 bottom along its axial, along its radial cooling water inlet 23 and the cooling water export 24 of seting up the intercommunication annular groove, cooling water annular groove and the vertical polymeric kettle top sealing connection of ABS.
Because the polymerization process can release a large amount of heat, if the heat is not taken away in time, the temperature of the material can be increased too fast, so that damage is brought, cold water enters the cooling water annular groove from the cooling water inlet 23 and is output from the cooling water outlet 24, the heat is taken away, and the flange seat 2 is cooled.
The utility model relates to an in the embodiment, still include retaining member 1, retaining member 1 cover is established on second axle sleeve 8 with locking second axle sleeve 8 and pivot.
The second shaft sleeve 8 and the rotating shaft are prevented from rotating relatively, and the sealing stability of the radial sealing element 3 and the mechanical sealing element 6 is improved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a vertical for polymeric kettle shaft seal device of ABS, the vertical polymeric kettle of ABS offers the stirring mouth, and the pivot penetrates the stirring mouth rotates rather than being connected, its characterized in that includes:
the flange seat (2) is fixed on the ABS vertical polymerization kettle corresponding to the stirring port, the rotating shaft penetrates through an inner hole of the flange seat (2) and is rotatably connected with the inner hole, and a flushing fluid inlet (21) and a flushing fluid outlet (22) communicated with the inner hole are formed in the flange seat (2) along the radial direction of the rotating shaft;
the radial sealing element (3) comprises an annular pressing plate (31), a sealing ring (32), an annular fixing seat (33) and a first shaft sleeve (34), the first shaft sleeve (34) is sleeved and fixed on the rotating shaft, an upper annular plate extends out of the top of the annular fixing seat (33) towards the rotating shaft, a lower annular plate extends out of the bottom of the annular fixing seat (33) towards the inner hole wall of the flange seat (2), the lower annular plate is fixed on the flange seat (2) through a screw (10), the annular pressing plate (31) is fixed on the lower annular plate, the sealing ring (32) is embedded into an annular groove formed by the annular pressing plate (31), the inner wall of the annular fixing seat (33) and the upper annular plate, and the sealing ring (32) is connected with the outer wall of the first shaft sleeve (34) in a sealing manner;
the bottom of the sealing seat (4) is connected with the top of the flange seat (2) in a sealing manner, and an installation gap (41) is formed between the inner wall of the sealing seat (4) and the rotating shaft;
the oil seal piece (5) is installed at one end, far away from the flange seat (2), of the seal seat (4) to seal the installation gap (41);
and the mechanical sealing element (6) is arranged in the mounting gap (41), the lower end of the mechanical sealing element (6) is fixed on the flange seat (2), and the upper end of the mechanical sealing element is fixed on the oil seal piece (5).
2. The shaft sealing device for the ABS vertical polymerizer according to claim 1, further comprising an L-shaped shaft sleeve (7), wherein the L-shaped shaft sleeve (7) is sleeved and fixed on the rotating shaft, and an O-shaped ring is installed between the horizontal section of the L-shaped shaft sleeve (7) and the inner hole wall of the flange seat (2) to seal a gap between the L-shaped shaft sleeve (7) and the inner hole wall of the flange seat (2).
3. The shaft sealing device for the ABS vertical polymerization kettle as claimed in claim 2, comprising a second shaft sleeve (8), wherein the second shaft sleeve (8) is fixed on the rotating shaft, the bottom of the second shaft sleeve is wrapped and fixed on the vertical section of the L-shaped shaft sleeve (7), and a plurality of O-shaped rings are fixed between the second shaft sleeve (8) and the rotating shaft to seal a gap between the second shaft sleeve (8) and the rotating shaft.
4. The shaft sealing device for the ABS vertical polymerizer according to claim 3, wherein the mechanical seal (6) comprises a lower seal (61), the lower seal (61) comprises a first stationary ring (611), a first movable ring (612), a first spring seat (613) and a first compression spring (614), the first stationary ring (611) is sleeved on the second shaft sleeve (8) and fixed on the flange seat (2), the first spring seat (613) is sleeved and fixed on the second shaft sleeve (8), the first movable ring (612) and the first compression spring (614) are sleeved and slidably connected on the second shaft sleeve (8), and two ends of the first compression spring (614) abut against the first spring seat (613) and the first movable ring (612) respectively, so that the first movable ring (612) presses the first stationary ring (611).
5. The ABS vertical shaft sealing device for the polymerization kettle according to claim 4, wherein the mechanical seal (6) comprises an upper seal (62), the upper seal (62) comprises a second stationary ring (621), a second moving ring (622), a second spring seat (623) and a second compression spring (624), the second stationary ring (621) is sleeved on the second shaft sleeve (8) and is fixedly connected with the bottom of the oil seal (5), the second spring seat (623) is sleeved and fixed on the second shaft sleeve (8), the second moving ring (622) and the second compression spring (624) are sleeved and slidably connected on the second shaft sleeve (8), and two ends of the second compression spring (624) are respectively abutted against the second spring seat (623) and the second moving ring (622) so that the second moving ring (621) compresses the second stationary ring (621).
6. The shaft sealing device for the ABS vertical polymerization kettle as claimed in claim 5, wherein the oil seal member (5) comprises a stationary ring seat (51), a bearing (52), a bearing seat (53), an upper oil seal (54), a lower oil seal (55) and a gland (56), the stationary ring seat (51) is sleeved on the second shaft sleeve (8) and the bottom of the stationary ring seat is fixedly connected with the top of the sealing seat (4), the second stationary ring (621) is fixedly connected with the bottom of the stationary ring seat (51), the bearing seat (53) is fixed on the stationary ring seat (51), the inner ring of the bearing (52) is sleeved and fixed on the second shaft sleeve (8), the outer ring of the bearing is fixedly connected with the inner wall of the bearing seat (53), the upper oil seal (54) is sleeved on the second shaft sleeve (8) and is located on the upper side and the lower side of the bearing (52), the gland (56) corresponds to the second shaft sleeve (8) and is provided with a through hole, and the gland (56) is covered on the bearing seat (53).
7. The shaft sealing device for the ABS vertical polymerizer according to claim 6, wherein the oil seal member (5) further comprises a retainer ring (57) and a gasket (58), the retainer ring (57) is sleeved on the second shaft sleeve (8) and is located between the bearing (52) and the upper oil seal (54), and the gasket (58) is sleeved on the second shaft sleeve (8) and is located at the inner ring of the lower oil seal (55).
8. The shaft sealing device for the ABS vertical polymerizer according to claim 6, wherein the bottom of the sealing seat (4) is fixed on the top of the flange seat (2), the sealing seat (4) is provided with a sealing liquid inlet (42) communicated with the mounting gap (41), and the stationary ring seat (51) is provided with a sealing liquid outlet (43) communicated with the mounting gap (41).
9. The shaft sealing device for the ABS vertical polymerizer according to any one of claims 1-8, wherein a cooling water annular groove is formed at the bottom of the flange seat (2) along the axial direction, a cooling water inlet (23) and a cooling water outlet (24) which are communicated with the annular groove are formed along the radial direction, and the cooling water annular groove is connected with the top of the ABS vertical polymerizer in a sealing manner.
10. The shaft sealing device for the ABS vertical polymerization kettle according to any one of claims 3 to 8, further comprising a locking member (1), wherein the locking member (1) is sleeved on the second shaft sleeve (8) to lock the second shaft sleeve (8) and the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222614511.5U CN218761414U (en) | 2022-09-30 | 2022-09-30 | Shaft sealing device for ABS vertical polymerization kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222614511.5U CN218761414U (en) | 2022-09-30 | 2022-09-30 | Shaft sealing device for ABS vertical polymerization kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218761414U true CN218761414U (en) | 2023-03-28 |
Family
ID=85696225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222614511.5U Active CN218761414U (en) | 2022-09-30 | 2022-09-30 | Shaft sealing device for ABS vertical polymerization kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218761414U (en) |
-
2022
- 2022-09-30 CN CN202222614511.5U patent/CN218761414U/en active Active
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