CN103877888B - Side formula agitator - Google Patents
Side formula agitator Download PDFInfo
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- CN103877888B CN103877888B CN201410092066.8A CN201410092066A CN103877888B CN 103877888 B CN103877888 B CN 103877888B CN 201410092066 A CN201410092066 A CN 201410092066A CN 103877888 B CN103877888 B CN 103877888B
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- main shaft
- floating bearing
- stirring main
- agitator
- support pedestal
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Abstract
The invention provides a kind of side formula agitator of anti-leak, have and stir main shaft, agitator arm, side support pedestal, seal receptacle, CD-ROM drive motor, deceleration box; Stirring main shaft is also set with floating bearing, and the distance between floating bearing and agitator arm is the 1/5-1/20 of the spacing of agitator arm and side support pedestal; Side support pedestal is non-perpendicular with stirring main shaft, between floating bearing and side support pedestal, be connected with triangular support bracket, to strengthen the rigidity stirring main shaft.Floating bearing selects polytetrafluoro class material to make, and floating bearing has carried out ceramic spraying with the mating surface stirring main shaft.Seal receptacle adopts the helixseal of front road, the mechanical seal of rear road.There is certain liquid in the larynx footpath of helixseal cover, prevents mechanical seal damage of burning because of moment no liquid cooling.The setting of floating bearing of the present invention, make that stirring main shaft rigidity is high, good operation stability, vibration be little, and stir the good sealing effect of main shaft envelope, the maintenance period of shaft seal extends greatly, and maintenance cost significantly declines.
Description
Technical field
The present invention relates to a kind of the solution agitating device and the hermetically-sealed construction thereof that are arranged on pressure vessels for the chemical industry sidewall.
Background technology
Prevention pipeline or container leakage is a difficult problem in mechanical erection maintenance faced by institute, but, for the leakage of side formula stirring main shaft seal, the difficult problem especially in a difficult problem.For a long time, the sealing problem in plant equipment as a specialty, is carried out technical research and discussion by people, and the material of sealing and seal form are constantly developed in innovation.
Prior art or existing equipment situation:
1), from seal form, stir main shaft and become level, the seal form of its main shaft with tetrafluoro packing for filler.This seal form, has incomplete sealing, needs certain medium to leak the cooling and lubrication ensured between packing and axle during operation.In order to leaking of effective control medium, just must carry out adjustment and maintenance timely to filling pressure, keep packing and axle to have individual appropriate clearance.
2), from the cycle of operation, the operation of main shaft by a period of time is stirred, because packing and axle are in radial positive pressure, axle produces phase mutual friction with packing, and this frictional force makes main shaft produce wearing and tearing, when after the certain Cheng Du of spindle abrasion, main shaft is caused to damage, seal failure.
3), from version, stirring main shaft pivots and forms the single free degree, and motion is determined.But problem is paddle from axle supporting-point apart from remote, make paddle near-end produce larger amount of deflection, under operation, the rigidity stirring main shaft declines agitator, make axle produce larger two-wayly to beat, along with airtight and watertight padding wearing and tearing, strengthen with axle fit clearance.Stir main shaft by two-way aggravation of beating, in groove, medium is that streamline state is released, and seals entirely ineffective.
In a word, during former side formula agitator normally runs, must often drop into enough manpower and materials, its maintenance has high input, and maintenance period is short, and diluted acid dielectric loss is large, and leaks the pollution that also can bring environment.
Number of patent application is that the utility model of CN200520139877.5 relates to one " lateral stirrer for smoke absorption Tower System ", comprise the reduction box (2) that namely driving mechanism is directly connected with motor (1), the frame (3) be connected with reduction box (2), machine seat board (6) is connected with frame (3), machine seat board (6) is connected with smoke absorption tower (5) again, stirring main shaft (7) one end directly inserts in reduction box (2), the other end is equipped with stirrer paddle (8), centre is fixed with mechanically-sealing apparatus (4) and sealing ring (9), stirrer paddle (8) is front is provided with air inlet pipe (12), air inlet pipe (12) bottom is provided with point gas port (13) matched with stirrer paddle (8), there is airfoil flow apron (11) stirrer paddle (8) end, it has rational in infrastructure, stirring and mixing effect is good, air dispersion is even, noise is little with vibrations, long service life, corrosion resistance and good, maintain and replace consumable accessory feature easily.This agitator is installed or when safeguarding, is needed to open absorption tower, operation inconvenience.
Number of patent application is that the invention of CN201110190698.4 relates to one " agitator ", especially a kind of side-inserted agitator is related to, be mainly used in product in the storage tank of petroleum refining enterprise, chemical enterprise, warehouse & transport corporation etc. to carry out being in harmonious proportion or preventing precipitation, belong to Mixing Machine technical field.It comprises bracket (1), motor (2), reduction box (3), main shaft (5) and impeller (8), described bracket (1) comprises riser (1.1) and transverse slat (1.2), described motor (2) is fixedly installed on transverse slat (1.2), described main shaft (5) is also set with overhanging supporting (6) and and axle sleeve (9), overhanging supporting (7) one end is connected with riser (1.1), the upper fixed cover of described axle sleeve (9) is equipped with mechanical seal (10), and mechanical seal (10) arranged outside has mounting flange (11).A kind of side-inserted agitator of the present invention has the non-damageable advantage of mechanical seal, can be applicable to the stirring of the colloidal substance such as pitch, paraffin material.In this invention, the vibration of main shaft is larger.
Number of patent application is that the utility model of CN200620073032.5 relates to a kind of side-inserted agitator, for the blending of product in the oil tank of oil plant, power plant etc.Comprise: electric machine support (1), vertical machine (2), spiral bevel gear reducer (3), main shaft (4), impeller (5), main shaft support cover (6), adpting flange (7) and mechanical seal (8), electric machine support (1) is in " ┓ " shape, vertical machine (2) is vertically arranged on the transverse slat (11) of electric machine support (1), spiral bevel gear reducer (3) is laterally connected in outside the riser of electric machine support (1), described vertical machine (2) is connected with spiral bevel gear reducer (3) input, the output of spiral bevel gear reducer (3) is connected with main shaft (4) one end, impeller (5) is installed on main shaft (4) other end, main shaft support cover (6) is in horizontal horn-like, its little head end is placed on main shaft (4), stub end is connected with riser (12) inner side of electric machine support (1), adpting flange (7) is connected with riser (12) inner side of electric machine support (1).The utility model can ensure the blending quality, low in energy consumption of finished product.In this invention, the sealing effectiveness of main shaft is poor.
Number of patent application is that the utility model of CN201020240247.8 relates to a kind of Timing Belt fixed angles side-inserted agitator, is mainly used in product in the storage tank to petroleum refining enterprise, chemical enterprise, warehouse & transport corporation etc. and is in harmonious proportion or prevents precipitation.Described agitator includes motor (1), Timing Belt (2), main shaft (3), casing (4), bracket (5), blade (6), main shaft support cover (7), adpting flange (8), mechanical seal one (9) and mechanical seal two (10), described motor (1) is fixed on casing (4), the output of described motor (1) is connected with main shaft (3) one end through Timing Belt (2), described blade (6) cover is as main shaft (3) other end, described mechanical seal one (9) and mechanical seal two (10) are all overlapped as on main shaft (3), the utility model Timing Belt fixed angles side-inserted agitator, structure is simple, cost is low and easy to maintenance.The mixing speed of this invention is unsuitable too fast, and stirring efficiency is not high.
Summary of the invention
Goal of the invention: solve traditional side formula agitator vibration problem that is comparatively large, that easily leak, provides that a kind of rigidity is large, side formula agitator that good airproof performance, life-span are long.
Technical scheme: a kind of side provided by the invention formula agitator, has and stirs main shaft, agitator arm, side support pedestal, seal receptacle, CD-ROM drive motor, deceleration box.Side support pedestal is non-perpendicular with stirring main shaft, stirring main shaft between agitator arm and side support pedestal is also set with floating bearing, the dead in line of the center line of floating bearing and the stirring main shaft of socket, the distance between floating bearing and agitator arm be agitator arm that the 1/5-1/20(of the spacing of agitator arm and side support pedestal ensures to encorbelment do not have too significantly swing or vibrate).Triangular support bracket is connected with between floating bearing and side support pedestal, triangular support bracket (5) has draw money on credit brace and the shorter short support arm of length, (triangular support bracket: two support arm Length discrepancy or asymmetric bracing frame, be adapted at tilt chamber wall or container side wall on install and use).
Triangular support bracket can strengthen the rigidity stirring main shaft, thus reduces to bring destroying infection because of the vibrations produced when paddle rotates to main shaft seal.The length of two support arms and angle can according to the angle of inclination design customizations in advance of interior of the container and container side wall or ring flange, to ensure the axial consistent of the stirring main shaft of the center line of floating bearing and socket.
Floating bearing, triangular support bracket and stirring main shaft, by assembling formation integrated model, ensure that whole mechanism structure is compact firmly, running efficient stable.
Brace of drawing money on credit can have Collapsible structure, as the fit structure of screw mandrel and nut, can regulate brachium, to adapt to the container side wall of multiple different gradient.Long support arm lengths after adjustment is still greater than the length of short support arm.
Stir the seal receptacle adopted between main shaft and container side wall and be preferably double sealing, front road (near container inside) adopts screw seal cover, and rear road (at outside vessel wall) adopts mechanical sealing member.Screw seal makes axially to produce certain thrust, has both alleviated the pressure of rear road mechanical seal, plays again particle in filtration turbid medium simultaneously and enters the effect of rear road sealing.One or several concave larynx footpath (mid portion radially caves in, and two head part are closely connected with stirring main shaft) can be had in helixseal cover, make to form a certain amount of solution medium retaining space in mechanical seal chamber.The axial length in concave larynx footpath is not less than the diameter stirring main shaft, the diameter being not more than the stirring main shaft of 2 times, the radial depth in concave larynx footpath is the preferred 1/10-1/12 of 1/6-1/20(stirring major axis diameter, ensure that concave larynx footpath holds enough solution, play auxiliary seal effect, do not take too much space again, and ensure that structure entirety has enough rigidity).
The cooling and lubricating system of mechanical sealing member relies on medium in storage tank (solution such as diluted acid) to be formed completely.The solution medium possessed of larynx footpath of helixseal cover, can make seal receptacle when moment, solution level dropped to lower than stirring main shaft center line, prevents from damaging mechanical seal because falling burn under moment liquid level.
Triangular support bracket is preferably Open architecture (non-closed structure in a reservoir, namely two support arms are all exposed in the solution that container holds), take interior of the container little, the resistance being subject to solution during rotation is little, good heat dissipation, triangular support bracket has the auxiliary function stirred simultaneously.
Floating bearing preferentially selects polytetrafluoro class material to make, and floating bearing can have employed ceramic spraying treatment process in advance with the mating surface stirring main shaft and process.
Beneficial effect:
Triangular support bracket of the present invention makes to stir that main shaft rigidity is high, less, the good operation stability of vibration, and the gap of stirring main shaft and seal is little, it is little to wear and tear, and can prevent the seepage of capsule contents and lubricating fluid.In addition, seal is the double-channel sealing structure of screw seal and mechanical sealing member, further ensures and stirs sealing effectiveness good between main shaft and container side wall.Meanwhile, when screw seal runs, make axially to produce certain thrust, both alleviated the pressure of rear road mechanical seal, play again particle in filtration turbid medium and enter the effect of rear road sealing.
And stirring main shaft of the present invention and triangular support bracket are Open architecture, make cooling good, reliable, this side formula agitator can support the use with the drive motors of Multiple Type and reducing gear.
The ring flange that floating bearing bracket of the present invention connects with side support pedestal is for basic point, and make floating bearing form a reference for assembling with overall, such agitator reduces error in assembling, the relative position error that the system that reduces in operation is brought.The setting of floating bearing, make main shaft circular runout less, circular runout range-controllable is within 0.045mm.Floating bearing and stirring can to have without the need to the lubricant adding other between main shaft lubricate, wear-resisting, corrosion resistant good result.
Because this side formula agitator substantially increases the sealing property stirring main shaft, shaft seal is not fragile, and the maintenance period of shaft seal extends greatly, by monthly original, extend to 1 year to a year and a half once, even can realize zero leakage in 3 years, zero dimension is protected, pollution-free, maintenance cost significantly declines.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional view of the present invention;
In figure, 1, mechanical sealing member; 2, seal receptacle; 3, larynx footpath; 4, helixseal cover; 5, triangular support bracket; 6, main shaft is stirred; 7, floating bearing; 8, agitator arm; 9, deceleration box; 10 CD-ROM drive motors; 11, ring flange; 12, side support pedestal; 20, Collapsible structure.
Detailed description of the invention
Embodiment 1:
The side formula agitator of anti-leak as shown in Figure 1, has and stirs main shaft 6, agitator arm 8, side support pedestal 12, seal receptacle 2, CD-ROM drive motor 10, deceleration box 9.Stirring main shaft 6 between agitator arm 8 and side support pedestal 12 is set with floating bearing 7, the center line of floating bearing 7 is axial consistent with the stirring main shaft 6 of socket, distance between floating bearing 7 and agitator arm 8 is that agitator arm 8 selects this numerical value with the 1/10(of the spacing of side support pedestal 12, be further contemplate internal tank size that agitator lays, stir the total length of main shaft and the optimal proportion determined, its objective is and allow the stirring action of A-frame is maximized to be guaranteed to stir main shaft traveling comfort simultaneously); Between floating bearing 7 and side support pedestal 12, be connected with the triangular support bracket 5 of Open architecture, triangular support bracket 5 has draw money on credit brace and short support arm, and brace of drawing money on credit has the Collapsible structure 20 that can regulate brachium.
Described floating bearing 7 polytetrafluoro class material is made, and floating bearing 7 carries out pottery spray treatment with the mating surface stirring main shaft 6.Stirring the seal receptacle adopted between main shaft 6 and container side wall is double sealing, and front road adopts screw seal, and having length in helixseal cover 4 is 1.5 times of concave larynx footpaths 3 of stirring major axis diameter, makes can there be a certain amount of solution medium in annular seal space; Rear road adopts mechanical sealing member 1.
This side formula agitator substantially increases and stirs the rigidity of main shaft 6 and the sealing property with container side wall.
Claims (4)
1. a side formula agitator, there is stirring main shaft (6), agitator arm (8), side support pedestal (12), seal receptacle (2), CD-ROM drive motor (10), deceleration box (9), side support pedestal (12) is non-perpendicular with stirring main shaft (6), it is characterized in that: the stirring main shaft (6) between agitator arm (8) and side support pedestal (12) is also set with floating bearing (7), the dead in line of the center line of floating bearing (7) and the stirring main shaft (6) of socket, distance between floating bearing (7) and agitator arm (8) is the 1/5-1/20 of the spacing of agitator arm (8) and side support pedestal (12), between floating bearing (7) and side support pedestal (12), be connected with triangular support bracket (5), triangular support bracket (5) has draw money on credit brace and the shorter short support arm of length, floating bearing, triangular support bracket and stirring main shaft are by assembling formation integrated model,
The seal receptacle (2) adopted between described stirring main shaft (6) and container side wall is double sealing, and front road adopts screw seal cover (4), and rear road adopts mechanical sealing member (1);
Between described screw seal cover (4) and mechanical sealing member (1), there is concave larynx footpath (3), make to form a certain amount of solution medium retaining space in mechanical seal chamber, the axial length in concave larynx footpath (3) is not less than the diameter stirring main shaft (6), the diameter being not more than the stirring main shaft of 2 times, and the radial depth in concave larynx footpath (3) is the 1/6-1/20 of the diameter stirring main shaft (6).
2. side formula agitator as claimed in claim 1, is characterized in that: described brace of drawing money on credit has Collapsible structure (20), can regulate brachium.
3. side formula agitator as claimed in claim 2, is characterized in that: described brace of drawing money on credit is the Collapsible structure (20) of screw mandrel and nut screw connection structure.
4. side formula agitator as claimed in claim 1 or 2, is characterized in that: described floating bearing (7) polytetrafluoro class material is made, and floating bearing (7) have employed ceramic spraying process with the mating surface stirring main shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092066.8A CN103877888B (en) | 2014-03-13 | 2014-03-13 | Side formula agitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092066.8A CN103877888B (en) | 2014-03-13 | 2014-03-13 | Side formula agitator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103877888A CN103877888A (en) | 2014-06-25 |
| CN103877888B true CN103877888B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410092066.8A Active CN103877888B (en) | 2014-03-13 | 2014-03-13 | Side formula agitator |
Country Status (1)
| Country | Link |
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| CN (1) | CN103877888B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667817A (en) * | 2015-01-16 | 2015-06-03 | 佛山高富中石油燃料沥青有限责任公司 | Mechanical seal isolation structure of stirrer |
| CN112543674B (en) * | 2018-08-15 | 2023-05-23 | 苏尔寿管理有限公司 | Agitator assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203183937U (en) * | 2013-04-07 | 2013-09-11 | 江阴市新桥石化机械设备有限公司 | Laterally-stretching type double-seal stirrer |
| CN203725053U (en) * | 2014-03-13 | 2014-07-23 | 南通醋酸纤维有限公司 | Side stirrer |
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- 2014-03-13 CN CN201410092066.8A patent/CN103877888B/en active Active
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| CN103877888A (en) | 2014-06-25 |
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