CN103877888A - Side-type stirrer - Google Patents
Side-type stirrer Download PDFInfo
- Publication number
- CN103877888A CN103877888A CN201410092066.8A CN201410092066A CN103877888A CN 103877888 A CN103877888 A CN 103877888A CN 201410092066 A CN201410092066 A CN 201410092066A CN 103877888 A CN103877888 A CN 103877888A
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- China
- Prior art keywords
- main shaft
- floating bearing
- seal
- stirring
- stirring main
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Abstract
The invention provides a leakproof side-type stirrer. The leakproof side-type stirrer is provided with a stirring main shaft, a stirring impellor, a side surface bearing base, a seal holder, a driving motor and a speed reduction box body; the stirring main shaft is also sleeved with a floating bearing; the distance between the floating bearing and the stirring impellor is 1/5-1/20 of the distance between the stirring impellor and the side surface bearing base; the side surface bearing base and the stirring main shaft are not perpendicular; a triangle support frame is connected between a floating bearing and the side bearing base so as to intensify the rigidity of the main shaft. The floating bearing is made of PTFE-type materials; the matched surface of the floating bearing and the stirring main shaft is subjected to ceramic spraying. A front-channel spiral seal and a rear-channel mechanical seal are adopted for the seal holder; certain liquids are stored in a throat diameter of a spiral seal sleeve so as to prevent the mechanical seal from being burned and damaged because of no liquid cooling instantly. The floating bearing provided by the invention ensures that the rigidity of the stirring main shaft is high, ensures the running stability is good, and ensures the vibration is tiny; moreover, the seal effect of a stirring main shaft seal is good; the maintenance cycle of the shaft seal is prolonged greatly; the maintenance cost is reduced greatly.
Description
Technical field
The present invention relates to a kind of solution agitating device and hermetically-sealed construction thereof that is arranged on pressure vessels for the chemical industry sidewall.
Background technology
Prevention pipeline or container leakage, be a difficult problem of facing in mechanical erection maintenance, but, the leakage of stirring main shaft seal for side formula, the difficult problem in a difficult problem especially.For a long time, people, using the sealing problem in plant equipment as a specialty, are carrying out technical research and discussion, make material and the seal form of sealing constantly developed in innovation.
Prior art or existing equipment situation:
1), from seal form, stir main shaft become level, the seal form of its main shaft is take tetrafluoro packing as filler.This seal form, has incomplete sealing, needs certain medium to leak to guarantee the cooling and lubrication between packing and axle when operation.For 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, stir main shaft by the operation of a period of time, because packing and axle are in positive pressure radially, 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, cause main shaft to damage, seal failure.
3), from version, stir main shaft and pivot and form the single free degree, motion is determined.But it is remote from axle supporting-point distance that problem is paddle, make paddle near-end produce larger amount of deflection, agitator is under running status, and the rigidity that stirs main shaft declines, make axle produce larger two-way beating, along with airtight and watertight padding wearing and tearing, strengthen with axle fit clearance.Stir main shaft by the two-way aggravation of beating, the interior medium of groove is streamline state and releases, and seals entirely ineffective.
In a word, former side formula agitator is normally in service, must often drop into enough manpower and materials, and its maintenance has high input, and maintenance period is short, and diluted acid dielectric loss is large, and leakage also can bring the pollution to environment.
Number of patent application is that the utility model of CN200520139877.5 relates to one " for the lateral stirrer of smoke absorption Tower System ", comprise that driving mechanism is directly connected with the reduction box (2) of motor (1), the frame (3) being 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), the front air inlet pipe (12) that is provided with of stirrer paddle (8), air inlet pipe (12) bottom is provided with point gas port (13) matching 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 and vibrations are little, long service life, corrosion resistance and good, maintain and replace consumable accessory feature easily.When this agitator is installed or safeguards, need to open absorption tower, operation inconvenience.
Number of patent application is that the invention of CN201110190698.4 relates to one " agitator ", especially relate to a kind of side-inserted agitator, be mainly used in product in the storage tank of oil refining enterprise, chemical enterprise, warehouse & transport corporation etc. and be in harmonious proportion or prevent 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), on described main shaft (5), be 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 the oil tank product 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 " ┓ " 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 the riser outside 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, it is horizontal horn-like that main shaft support cover (6) is, 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 guarantee 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 of oil refining enterprise, chemical enterprise, warehouse & transport corporation etc. be in harmonious proportion or prevent from precipitating.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) overlaps as for 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, simple in structure, 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 large, that easily leak, provide that a kind of rigidity is large, good airproof performance, long side formula agitator of life-span.
Technical scheme: a kind of side formula agitator provided by the invention, has the main shaft of stirring, agitator arm, side support pedestal, seal receptacle, CD-ROM drive motor, deceleration box.Side support pedestal is non-perpendicular with stirring main shaft, on the stirring main shaft between agitator arm and side support pedestal, be also set with floating bearing, the dead in line of the stirring main shaft of the center line of floating bearing and socket, the distance between floating bearing and agitator arm is that the 1/5-1/20(of distance between agitator arm and side support pedestal guarantees that the agitator arm of encorbelmenting does not have too significantly swing or vibration).Between floating bearing and side support pedestal, be connected with triangular support bracket, triangular support bracket (5) has the brace of drawing money on credit and the shorter short support arm of length, (triangular support bracket: the not isometric or asymmetric bracing frame of two support arms, is adapted at installing and using on the chamber wall that tilts or container side wall).
Triangular support bracket can strengthen the rigidity that stirs main shaft, thereby the vibrations that reduce to produce while rotation because of paddle bring destroying infection to main shaft seal.The length of two support arms and angle can be according to the angle of inclination design customizations in advance of interior of the container and container side wall or ring flange, to guarantee the axial consistent of the center line of floating bearing and the stirring main shaft of socket.
Floating bearing, triangular support bracket and stirring main shaft form an integrated model by assembling, guarantee that whole mechanism structure is compact firmly, running efficient stable.
The 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 gradients.Long support arm lengths after adjusting is still greater than the length of short support arm.
Stir the seal receptacle adopting between main shaft and container side wall and be preferably double sealing, front road (near container inside) adopts screw seal cover, and rear road (in chamber wall outside) adopts mechanical sealing member.Screw seal makes axially to produce certain thrust, has both alleviated the pressure of Liao Hou road mechanical seal, plays again particle in filtration turbid medium simultaneously and enters the effect that rear road seals.In helixseal cover, can there is one or several concave larynxs footpath (mid portion radially caves in, two head part with stir main shaft and be closely connected), make a certain amount of solution medium retaining space of formation mechanical seal chamber in.The axial length in concave larynx footpath be not less than stir main shaft diameter, be not more than the diameter of 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(that stirs main shaft diameter, guarantee that concave larynx footpath holds enough solution, play auxiliary seal effect, do not take again too much space, and guarantee that structural entity has enough rigidity).
The cooling and lubricating system of mechanical sealing member relies on medium in storage tank solution such as () diluted acids institute to form completely.The solution medium that possess in the larynx footpath of helixseal cover, can make seal receptacle moment solution level drop to when stirring main shaft center line, prevent from damaging mechanical seal because falling burn under moment liquid level.
Triangular support bracket is preferably Open architecture (non-closed structure in container, two support arms are all exposed in the solution that container holds), take interior of the container little, the resistance that is subject to solution when rotation is little, good heat dissipation, triangular support bracket has the auxiliary function stirring simultaneously.
Floating bearing preferentially selects polytetrafluoro class material to make, and floating bearing can adopt ceramic spraying treatment process to process with the mating surface that stirs main shaft in advance.
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, the seepage that can prevent the interior material of container and lubricating fluid.In addition, seal is the double-channel sealing structure of screw seal and mechanical sealing member, has further guaranteed to stir sealing effectiveness good between main shaft and container side wall.Meanwhile, when screw seal operation, make axially to produce certain thrust, both alleviated the pressure of Liao Hou road mechanical seal, play again particle in filtration turbid medium and enter the effect that rear road seals.
And stirring main shaft of the present invention and triangular support bracket are Open architecture, make cooling well, 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 take side support pedestal, as basic point, makes floating bearing and entirety form a reference for assembling, and agitator has reduced error in assembling like this, has in servicely reduced the relative position error that system is brought.The setting of floating bearing, makes main shaft circular runout less, within circular runout scope can be controlled in 0.045mm.Between floating bearing and stirring main shaft, can there is lubricated, wear-resisting, corrosion resistant good result without the lubricant that adds other.
Because this side formula agitator has improved the sealing property that stirs main shaft greatly, shaft seal is not fragile, and the maintenance period of shaft seal extends greatly, by original monthly once, extend to 1 year to a year and a half once, even in 3 years, can realize zero leakage, zero dimension protect, 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, stir main shaft; 7, floating bearing; 8, agitator arm; 9, deceleration box; 10 CD-ROM drive motors; 11, ring flange; 12, side support pedestal; 20, Collapsible structure.
The specific embodiment
Embodiment 1:
The side formula agitator of anti-leak as shown in Figure 1, has the main shaft 6 of stirring, agitator arm 8, side support pedestal 12, seal receptacle 2, CD-ROM drive motor 10, deceleration box 9.On the stirring main shaft 6 between agitator arm 8 and side support pedestal 12, be set with floating bearing 7, the stirring main shaft 6 of the center line of floating bearing 7 and socket axial consistent, distance between floating bearing 7 and agitator arm 8 is that the 1/10(of distance between agitator arm 8 and side support pedestal 12 selects this numerical value, be the total length having further considered internal tank size that agitator lays, stirred main shaft and definite optimal proportion, its objective is to allow the stirring action of A-frame is maximized guarantees 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 the brace of drawing money on credit and short support arm, and the brace of drawing money on credit has the Collapsible structure 20 that can regulate brachium.
Described floating bearing 7 use polytetrafluoro class materials are made, spray treatment that the mating surface of floating bearing 7 and stirring main shaft 6 has carried out pottery.Stirring the seal receptacle adopting between main shaft 6 and container side wall is double sealing, and front road adopts screw seal, in helixseal cover 4, has the concave larynx footpath 3 that length is 1.5 times of stirring main shaft diameters, 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 has improved the rigidity of stirring main shaft 6 and the sealing property with container side wall greatly.
Claims (6)
1. the side formula agitator of an anti-leak, 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: on the stirring main shaft (6) between agitator arm (8) and side support pedestal (12), be also set with floating bearing (7), the dead in line of the stirring main shaft (6) of the center line of floating bearing (7) and socket, distance between floating bearing (7) and agitator arm (8) is the 1/5-1/20 of distance between 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 the brace of drawing money on credit and the shorter short support arm of length, floating bearing, triangular support bracket and stirring main shaft form an integrated model by assembling.
2. the side formula agitator of anti-leak as claimed in claim 1, it is characterized in that: the seal receptacle (2) adopting between described stirring main shaft (6) and container side wall is double sealing, front road adopts screw seal cover (4), and rear road adopts mechanical sealing member (1).
3. the side formula agitator of anti-leak as claimed in claim 2, it is characterized in that: between described screw seal cover (4) and mechanical sealing member (1), there is concave larynx footpath (3), make a certain amount of solution medium retaining space of formation in mechanical seal chamber, the axial length in concave larynx footpath (3) be not less than stir main shaft (6) diameter, be not more than the diameter of the stirring main shaft of 2 times, the radial depth in concave larynx footpath (3) is for stirring the 1/6-1/20 of diameter of main shaft (6).
4. the side formula agitator of anti-leak as claimed in claim 1, is characterized in that: the described brace of drawing money on credit has Collapsible structure (20), can regulate brachium.
5. the side formula agitator of anti-leak as claimed in claim 4, is characterized in that: the described brace of drawing money on credit is the Collapsible structure (20) of screw mandrel and nut fit structure.
6. the side formula agitator of anti-leak as described in claim 1,2 or 4, is characterized in that: described floating bearing (7) polytetrafluoro class material is made, and floating bearing (7) has adopted ceramic spraying processing with the mating surface that stirs 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 true CN103877888A (en) | 2014-06-25 |
| CN103877888B CN103877888B (en) | 2016-04-13 |
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ID=50947209
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 |
|---|---|
| CN (1) | CN103877888B (en) |
Cited By (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 |
| CN112543674A (en) * | 2018-08-15 | 2021-03-23 | 苏尔寿管理有限公司 | Stirrer component |
Citations (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 |
-
2014
- 2014-03-13 CN CN201410092066.8A patent/CN103877888B/en active Active
Patent Citations (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 |
Cited By (4)
| 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 |
| CN112543674A (en) * | 2018-08-15 | 2021-03-23 | 苏尔寿管理有限公司 | Stirrer component |
| CN112543674B (en) * | 2018-08-15 | 2023-05-23 | 苏尔寿管理有限公司 | Agitator assembly |
| US11958029B2 (en) | 2018-08-15 | 2024-04-16 | Sulzer Management Ag | Agitator assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103877888B (en) | 2016-04-13 |
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