CN208171075U - Cooled heat exchange roller end construction - Google Patents
Cooled heat exchange roller end construction Download PDFInfo
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- CN208171075U CN208171075U CN201820762119.6U CN201820762119U CN208171075U CN 208171075 U CN208171075 U CN 208171075U CN 201820762119 U CN201820762119 U CN 201820762119U CN 208171075 U CN208171075 U CN 208171075U
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- roller
- support shaft
- stepped hole
- heat exchange
- bearing
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Abstract
This application involves a kind of heat-exchange devices, specifically disclose cooled heat exchange roller end construction, it includes the internal roller for being equipped with hot switching path and the support shaft set on roller end and with cooling tower rotation connection, support shaft periphery is arranged with the bearing block being fixed on cooling tower, and rolling bearing is equipped between support shaft and bearing block；The feed pathway being connected to hot switching path or liquid outlet channel are equipped in support shaft, feed pathway or liquid outlet channel are stepped hole, the small end of stepped hole is directed toward hot switching path, connecting tube is equipped in the big end of stepped hole, it is equipped with thrust bearing between connecting tube and the shoulder of stepped hole, packing is equipped between connecting tube and stepped hole side wall；Bearing block is equipped with the cooler bin for being looped around support shaft periphery.The structure can reduce the temperature of rolling bearing ambient enviroment, improve the service life of rolling bearing.
Description
Technical field
The utility model relates to a kind of heat-exchange devices, and in particular to a kind of cooled heat exchange roller end construction.
Background technique
It needs to handle raw material calcium carbide (chemical formula CaC2) in the production process of acetylene, this is related to electricity
Calcium carbide molten liquid is usually placed on by the heating fusing removal of impurities of stone and cooling solidification processing, existing calcium carbide cooling method
Natural cooling is carried out in container, this mode can bring following problem：
(1) calcium carbide cooling procedure is longer, greatly reduces the production efficiency of acetylene.
(2) heat distributed in calcium carbide cooling procedure finally empties, and a large amount of waste heats contained can not recycle, and causes biggish
Energy dissipation.
(3) in calcium carbide cooling procedure can with the contact with moisture in air and cause calcium carbide solidify after dusting it is serious, affect
The production of acetylene.
Based on the above issues, our company, which is being researched and developed, carries out cooling treatment to calcium carbide by cooling tower, by cooling tower
Multiple groups cooling component is set from top to bottom, and is poured down from the top of cooling tower by calcium carbide molten liquid, then calcium carbide molten liquid will successively
By each group cooling component；Meanwhile heat exchange medium is passed through in cooling component, so that calcium carbide can be taken away by heat exchange medium
The heat of molten liquid reaches cooling purpose；Currently, adoptable heat exchange medium is mainly liquid metal；Used by usually
Liquid metal is what gallium 37%, indium 22%, bismuth 18.6%, aluminium 3%, iron 2%, magnesium 2.4% and tin 15% formed by mass fraction
Alloy, the fusing point of the alloy is 3 DEG C, and boiling point is also higher, is not in boiling phenomenon in heat exchanging process, i.e., in heat exchange
The alloy is rendered as liquid in the process, embodies preferable heat absorption capacity, and is not in the change of state, is conducive to transmission.By
It is short in the time that calcium carbide molten liquid flows to the bottom of cooling tower at the top of cooling tower, in order to improve the cooling effect of cooling component
Rate, cooling component are rotatably arranged in cooling tower, while liquid metal will also pass through the inside of cooling component, then calcium carbide molten liquid
It can more fully be contacted with the surface of cooling component.But since cooling component is in hot environment, and cooling component rotation is set
It sets in cooling tower, and is supported by bearing；Since in high-heat environment, the service life that will lead to bearing is extremely low.
Utility model content
The purpose of this utility model is to provide a kind of cooled heat exchange roller ends for improving rolling bearing service life
Portion's structure.
In order to achieve the above objectives, the base case of the utility model is as follows：
Cooled heat exchange roller end construction includes the internal roller for being equipped with hot switching path and is set to roller end simultaneously
With the support shaft of cooling tower rotation connection, support shaft periphery is arranged with the bearing block being fixed on cooling tower, support shaft and bearing
Rolling bearing is equipped between seat；The feed pathway being connected to hot switching path or liquid outlet channel, feed pathway are equipped in support shaft
Or liquid outlet channel is stepped hole, the small end of stepped hole is directed toward hot switching path, is equipped with connecting tube, connecting tube in the big end of stepped hole
It is equipped with thrust bearing between the shoulder of stepped hole, the packing being squeezed is equipped between connecting tube and stepped hole side wall；Bearing
Seat is equipped with the cooler bin for being looped around support shaft periphery.
The principle of this programme cooled heat exchange roller end construction is：
Roller is rotatably connected in cooling tower in use process, and has driving device that roller is constantly driven to rotate.Calcium carbide is molten
Melt liquid to pour into from top to bottom, and the feed pathway and liquid outlet channel positioned at hot switching path both ends are connected to hot switching path；
Liquid metal is flowed into from feed pathway, is cooled down after hot switching path, then from liquid outlet channel discharge.To liquid metal
It constantly will constantly be recycled in feed pathway, hot switching path and liquid outlet channel.Calcium carbide molten liquid constantly contacts progress with roller
To be quickly cooled down solidification, the heat that liquid metal then absorbs roller enables roller, calcium carbide molten liquid to cool down for heat exchange.
During cooling to calcium carbide molten liquid, while roller is constantly rotating, so that calcium carbide molten liquid can
It is sufficiently contacted with the surface of roller, improves the efficiency of liquid metal heat exchange；In addition, calcium carbide molten liquid also exists when roller rotates
Cylinder surface flowing, so that roller will have guide functions to calcium carbide molten liquid, by calcium carbide molten liquid to underlying rolling
Cylinder water conservancy diversion.
Since roller is in rotary state, the rolling bearing being arranged between bearing block and support shaft, to reduce roller
Rotary resistance；In addition, connecting tube and roller are also at relative rotation state, therefore set between connecting tube and the shoulder of stepped hole
Reasoning bearing is set；Meanwhile the packing of compression is set between connecting tube and stepped hole side wall, it can prevent liquid metal from leaking,
To play sealing function.
This programme generate beneficial effect be：
(1) due to the extreme temperatures of calcium carbide molten liquid, when calcium carbide molten liquid pours roller progress heat exchange, roller
The temperature on surface is very high；And the temperature relative reduction since liquid metal is in flow regime, in hot switching path；Due to rolling
Bearing is directly contacted with cylinder surface, is used under the hot environment for a long time, will lead to changing for the tissue of bearing material,
Make the reduction of bearing load ability and service life.And in the present solution, being looped around rolling bearing by being equipped on bearing block
The cooler bin of periphery, by the cooling water or other cooling mediums of circulation in cooler bin, and liquid metal liquid is also from the axis of rolling
The center held is passed through, and so as to reduce the environment temperature around rolling bearing, improves the service life of rolling bearing.
(2) reasoning bearing is set between connecting tube and the shoulder of stepped hole, roller can be made normally to turn relative to connecting tube
It is dynamic, connecting tube Leading Edge Deformation is prevented, packing is equipped between connecting tube and the side wall of stepped hole, and packing is compressed, with the company of raising
The leakproofness of adapter tube and stepped hole, can prevent liquid metals from leaking, improve the utilization rate of liquid metal.
Preferred embodiment one：It is advanced optimized as to base case, the bearing block is equipped with annular groove, cooler bin
It is embedded in annular groove；By the way that annular groove is arranged, it is on the one hand easily installed cooler bin, on the other hand, cooler bin can be shortened
The distance between rolling bearing advantageously reduces the environment temperature around rolling bearing.
Preferred embodiment two：As advanced optimizing to preferred embodiment one, the connecting tube and reasoning bearing offset one
End is equipped with convex edge, and connecting tube periphery is arranged with the sealed briquette for being detachably connected on support the end of the shaft, and sealed briquette compresses packing；
Connecting tube end be arranged convex edge, the contact area of connecting tube and thrust bearing can be increased, it is ensured that reasoning bearing with connect
The connection of pipe is reliable；And packing is compressed by dismountable sealed briquette, it is conveniently replaced packing.
Preferred embodiment three：As advanced optimizing to preferred embodiment two, outer diameter and the stepped hole big end of the convex edge
Outer diameter is equal；So as to reduce the amount of the liquid metal by the gap exudation between convex edge and stepped hole side wall, can subtract
Few immersion of the liquid metals to packing, improves the packing service life.
Preferred embodiment four：As advanced optimizing to preferred embodiment three, the packing is graphite packing；When roller is opposite
When connecting tube rotation, packing can also relatively rotate with the side wall of stepped hole；And graphite packing is used, packing can be reduced
With the frictional force between stepped hole side wall, it is conducive to extend the packing service life.
Preferred embodiment five：As advanced optimizing to preferred embodiment four, the roller is wherein solid in the support shaft of one end
It is fixed useful so that the gear that two drum-shapes roll in pairs；The roller is mounted in cooling tower, and two rollers form a cooling group, and
It is provided with multiple cooling groups from top to bottom in cooling tower, two rollers of same cooling group are in rolling state, thus to pouring to cold
But the calcium carbide molten liquid organized has preferable guide functions, in order to the cooling group of calcium carbide molten liquid flow direction lower section.Therefore it is propping up
Gear is fixed on support axis, makes the gear intermeshing on two rollers of same cooling group, so as to make two rollers be in rolling state.
Preferred embodiment six：As advanced optimizing to preferred embodiment five, the roller is wherein solid in the support shaft of one end
Surely there is the sprocket wheel to drive roller to rotate；Roller rotation can be then driven by chain conveyer, and multiple due to being equipped in cooling tower
Cooling group, therefore each cooling group can be driven by same chain while rotating.
Preferred embodiment seven：As advanced optimizing to preferred embodiment five, stone is equipped between the bearing block and support shaft
Minuteness seal or carbon seal ring；It can avoid the installation space that calcium carbide molten liquid enters rolling bearing by setting sealing ring, lead
The running environment of rolling bearing is caused to become more severe；In addition, asbestos seal ring and carbon seal ring all have preferable high temperature resistant
Performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of heat exchange roller in the present embodiment；
Fig. 2 is the end construction of cooled heat exchange roller represented by part A in Fig. 1；
Fig. 3 is the cross-sectional view of connecting tube in the present embodiment；
Fig. 4 is the end view drawing of the present embodiment guide ring.
Specific embodiment
The utility model is described in further detail below by specific embodiment：
Appended drawing reference in Figure of description includes：Roller 10, hot switching path 11, the second support shaft 20, feed pathway
21, bearing block 30, cooler bin 31, bearing (ball) cover 32, retaining ring 33, carbon seal ring 34, gear 40, sprocket wheel 50, connecting tube 60, close
Seal briquetting 61, graphite packing 62, convex edge 63, rolling bearing 70, reasoning bearing 80, the first support shaft 90, liquid outlet channel 91, shoulder
92。
As shown in Figure 1, heat exchange roller 10 is mainly including roller 10, set on first support shaft 90 at 10 both ends of roller and the
Two support shafts 20, and the shaft member and flight that are set in roller 10.First support shaft 90 be set to roller 10 left end, second
Support shaft 20 is set to the right end of roller 10, wherein the first support shaft 90 passes through casting integrated molding with roller 10.It is set in roller 10
There is cylindrical cavity, liquid outlet channel 91 is equipped in the first support shaft 90, the right end of cylindrical cavity runs through roller 10, and liquid outlet channel 91 runs through
First support shaft 90 is simultaneously connected to the right end of cylindrical cavity.One end of cylindrical cavity towards the first support shaft 90 gradually tapers up to form second
Conical section, so that cylindrical cavity passes through the second conical section to 91 transition of liquid outlet channel.
As shown in Figure 1, flight is wrapped in shaft member and welds with shaft member, it is then that flight and shaft member is right from cylindrical cavity
In the opening insertion cylindrical cavity at end, and the outer of flight is welded on the side wall of cylindrical cavity, then forms spiral shell in roller 10
Revolve the hot switching path 11 of shape.Feed pathway 21 is equipped in second support shaft 20, one end of feed pathway 21 is set as in flaring
First conical section of shape docks one end where the first conical section in the second support shaft 20 with the right end of roller 10, and by
Two support shafts 20 are welded with roller 10, then form the integral structure of roller 10.
The cooled heat exchange roller end construction of the present embodiment is：
As shown in Figure 1 and Figure 2, the periphery of the first support shaft 90 and the second support shaft 20 is arranged with bearing block 30, bearing block
30 are fixed in cooling tower；Rolling bearing is equipped between first support shaft 90 and the second support shaft 20 and corresponding bearing block 30
70, i.e. roller 10 is formed by rolling bearing 70 and cooling tower and is rotatablely connected, and by rolling bearing 70 to the both ends of roller 10
Form support.Feed pathway 21 and liquid outlet channel 91 are stepped hole, and the small end of stepped hole is directed toward hot switching path 11, and ladder
Connecting tube 60 is equipped in the big end in hole.
As shown in Figure 1, Figure 3, one end of connecting tube 60 is equipped with convex edge 63, the outer diameter of convex edge 63 and the diameter of stepped hole big end
It is equal；Connecting tube 60 is arranged in one end insertion stepped hole of convex edge 63, and is equipped between the shoulder of stepped hole 92 and convex edge 63
Thrust bearing, convex edge 63 can increase the contact area of connecting tube 60 Yu thrust bearing.It is set between connecting tube 60 and stepped hole side wall
Have a packing, and 60 periphery of connecting tube is arranged with sealed briquette 61, sealed briquette 61 be bolted on the first support shaft 90 or
The end of second support shaft 20, so that sealed briquette 61 compresses packing.Packing in the present embodiment uses graphite packing
62, so as to reduce the friction between packing and stepped hole side wall；In addition, convex edge 63 also has position-limiting action to packing, so as to
To prevent packing from directly contacting with reasoning bearing 80, the clast for causing packing to generate in wear process enters in thrust bearing,
Deteriorate the running environment of thrust bearing.
As shown in Figure 2, Figure 4 shows, bearing block 30 is equipped with annular groove, and annular groove has been embedded in cooler bin 31 and will cool down
Case 31 is fixed on bearing block 30, so that cooler bin 31 is looped around around rolling bearing 70.It is continuously passed through in cooler bin 31
Cooling water is conducive to the service life for improving rolling bearing 70 so as to reduce the environment temperature around rolling bearing 70.Bearing
The end of seat 30 is fixed with bearing cap by spiral, and retaining ring 33 is equipped between bearing cap and rolling bearing 70, and bearing cap is logical
It crosses 33 power transmission of retaining ring rolling bearing 70 is limited in bearing block 30.Bearing block 30 relative to sealing cover the other end be equipped with it is close
Seal, the sealing ring in the present embodiment use carbon seal ring 34；It can make rolling bearing 70 by sealing ring and bearing (ball) cover 32
In environment in relative closure, so as to avoid the dust formed after calcium carbide cooling and solidifying from entering the operation of rolling bearing 70
In environment, deteriorate the working environment of rolling bearing 70.
When heat exchange roller 10 in the present embodiment cools down calcium carbide molten liquid, roller 10 is mounted in cooling tower.
A cooling group mutually is formed to the roller of rolling 10；Therefore, gear 40 is also welded in the second support shaft 20, same cooling group
Gear 40 on roller 10 is intermeshed, so that another roller 10 will be rotated in the opposite sense, i.e., when a roller 10 rotates
So that two rollers 10 of cooling group are in rolling state.In addition, it is also welded with sprocket wheel 50 on a wherein roller 10 for same cooling group,
So as to drive roller 10 to rotate by chain conveyer；And sprocket wheel 50 of the chain by each cooling group, so as to drive institute simultaneously
There is the rotation of roller 10.
Multiple cooling groups are equipped in cooling tower altogether from top to bottom, when cooling tower cools down calcium carbide molten liquid, by calcium carbide
Molten liquid pours down at the top of cooling tower, to will successively pass through each cooling group during calcium carbide molten liquid flows downward；
Since two rollers 10 of same cooling group are in rolling state, roller 10, which has, draws calcium carbide molten liquid between two rollers 10
The effect of stream, so as to increase the probability that calcium carbide molten liquid pours cooling group downwards.
While under calcium carbide molten liquid pours downwards at the top of cooling tower, for carrying out the liquid metal of heat exchange from feed liquor
Channel 21 enters, and is discharged from liquid outlet channel 91, feed pathway 21 then can be then passed through again after supercooling, so that liquid is golden
Belong to the circulation in hot switching path 11 to take away the heat of calcium carbide molten liquid to be carried out continuously heat exchange, gradually make calcium carbide molten liquid
It cools down and solidifies.In the present embodiment, liquid metal by mass fraction be gallium 37%, indium 22%, bismuth 18.6%, aluminium 3%, iron 2%,
The alloy that magnesium 2.4% and tin 15% form, the fusing point of the alloy are 3 DEG C.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim
Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (8)
1. cooled heat exchange roller end construction, it is characterised in that：Including the internal roller for being equipped with hot switching path and it is set to
Roller end and support shaft with cooling tower rotation connection, support shaft periphery is arranged with the bearing block being fixed on cooling tower, props up
It supports and is equipped with rolling bearing between axis and bearing block；It is equipped with the feed pathway being connected to hot switching path in support shaft or liquid is logical out
Road, feed pathway or liquid outlet channel are stepped hole, and the small end of stepped hole is directed toward hot switching path, the company of being equipped in the big end of stepped hole
Adapter tube is equipped with thrust bearing between connecting tube and the shoulder of stepped hole, be equipped with and be squeezed between connecting tube and stepped hole side wall
Packing；Bearing block is equipped with the cooler bin for being looped around support shaft periphery.
2. cooled heat exchange roller end construction according to claim 1, it is characterised in that：The bearing block is equipped with
Annular groove, cooler bin are embedded in annular groove.
3. cooled heat exchange roller end construction according to claim 2, it is characterised in that：The connecting tube and thrust
One end that bearing offsets is equipped with convex edge, and connecting tube periphery is arranged with the sealed briquette for being detachably connected on support the end of the shaft, seals
Briquetting compresses packing.
4. cooled heat exchange roller end construction according to claim 3, it is characterised in that：The outer diameter of the convex edge with
The outer diameter of stepped hole big end is equal.
5. cooled heat exchange roller end construction according to claim 4, it is characterised in that：The packing is graphite plate
Root.
6. cooled heat exchange roller end construction according to claim 5, it is characterised in that：The roller wherein one end
Support shaft on be fixed with gear roll two drum-shapes in pairs.
7. cooled heat exchange roller end construction according to claim 6, it is characterised in that：The roller wherein one end
Support shaft on be fixed with to drive roller rotate sprocket wheel.
8. cooled heat exchange roller end construction according to claim 7, it is characterised in that：The bearing block and support
Asbestos seal ring or carbon seal ring are equipped between axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820762119.6U CN208171075U (en) | 2018-05-21 | 2018-05-21 | Cooled heat exchange roller end construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820762119.6U CN208171075U (en) | 2018-05-21 | 2018-05-21 | Cooled heat exchange roller end construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208171075U true CN208171075U (en) | 2018-11-30 |
Family
ID=64364771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820762119.6U Active CN208171075U (en) | 2018-05-21 | 2018-05-21 | Cooled heat exchange roller end construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208171075U (en) |
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2018
- 2018-05-21 CN CN201820762119.6U patent/CN208171075U/en active Active
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