CN108825666A - A kind of antiscale water-cooled bearing watt - Google Patents
A kind of antiscale water-cooled bearing watt Download PDFInfo
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- CN108825666A CN108825666A CN201810606275.8A CN201810606275A CN108825666A CN 108825666 A CN108825666 A CN 108825666A CN 201810606275 A CN201810606275 A CN 201810606275A CN 108825666 A CN108825666 A CN 108825666A
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- water
- tube
- cooling
- wall
- water cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/046—Brasses; Bushes; Linings divided or split, e.g. half-bearings or rolled sleeves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The present invention relates to a kind of antiscale water-cooled bearings watt, including the upper bearing (metal) watt and lower bearing watt being mutually permanently connected；Lower bearing watt is internally provided with several water cooling through-holes；Water cooling tube is mounted in each water cooling through-hole；Water cooling tube include outer wall with the water cooling outer tube that water cooling through-hole wall contacts and both ends extend to outside water cooling through-hole, be set in water cooling outer tube and both ends extend to the water-cooled inner tube outside water cooling outer tube；It is provided with seal between the inner wall and water-cooled inner tube outer wall at water cooling outer tube both ends, so as to fit sealing and form first runner between water cooling outer tube and water-cooled inner tube；It is provided with water inlet pipe on the one end side wall of water cooling outer tube, is provided with outlet pipe on the side wall of the other end；Water-cooled inner tube is internally provided with second flow channel.By the sleeve design on cooling water path, the bulk temperature of cooling water is reduced, the temperature condition that wherein metal salts out is weakened, realizes water cooling tube good antiscale property, and then ensure that the cooling effect of bearing liner.
Description
Technical field
The present invention relates to turbine equipment fields, and in particular to a kind of antiscale water-cooled bearing watt.
Background technique
For a long time, many horizontal hydrogenerator groups because radial watt of temperature it is high, seriously threaten the normal of bearing
Operation.On the one hand excessively high Wa Wen causes the increase of bearing loss, and energy is wasted；On the other hand directly water wheels are sent out
The safe and stable operation of motor group brings threat, increases accident potential, and maintenance workload increases, because frequent shutdown maintenance will
The band huge economic loss of caller station.
Chinese patent CN201220393669.8 (publication number) discloses a kind of " water- cooled footstep watt ", by lower axle
The water the circulation path that " S " type is set in watt ontology is held, the both ends of water the circulation path are separately connected intake-outlet, two intake-outlet difference
It is located at the two sides of lower bearing watt ontology.It is transmitted by forming the water the circulation path of " S " type at the back of lower bearing watt ontology
Thermal energy, so that bearing liner is that my temperature is substantially reduced in use.
Chinese patent CN201620202749.9 (disclosure) discloses one kind, and " novel horizontal water cooling watt radially slides axis
It holds ".Wherein, a kind of bearing liner cooling structure is described, it is a certain number of cold by being provided in radial bearing shell lower half watt body
But water hole and the closed water cavity passed in and out in rear and front end shape cooling water；The closed water cavity phase that cooling water inlet and outlet pipes are formed with both ends
Connection.Realize the purpose with the directly cooling transverse bearing watt of cooling water.
Have it is above-mentioned it is found that the problem excessively high for radial watt of temperature pot in the Horizontal water cooling generating set course of work, can be with
Taking heat function using cooling water flow, reaching the cooling purpose of bearing liner in such a way that cooling water channel is arranged in bearing liner, from
And it realizes and bearing is protected.
But the work characteristics due to being operated when the hydraulic turbine needs long, under actual condition, bearing liner often has
Higher temperature, so that cooling water absorbs heat when flowing through bearing liner and temperature significantly increases.As the temperature rises,
Calcium ions and magnesium ions in cooling water are precipitated due to solubility reduces under high temperature, so formation calcium salt, magnesium salts and be gradually deposited at cooling
On the inner wall of water channel, scale is formed.And the formation of scale, it will cause the heat-transfer capability decline between cooling water channel and cooling water；
When scale largely accumulates, the blocking of cooling water channel also will cause, lead to the cold forfeiture for going function of the latter.
Summary of the invention
The present invention provides a kind of antiscale water-cooled bearings watt, to solve the easy fouling of bearing liner cooling water channel in the prior art
Problem.
The technical solution adopted by the present invention is as follows：
A kind of antiscale water-cooled bearing watt, including the upper bearing (metal) watt and lower bearing watt being mutually permanently connected；The lower bearing watt
Be internally provided with several water cooling through-holes；Water cooling tube is mounted in each water cooling through-hole；The water cooling tube includes outer
Wall and the water cooling outer tube that water cooling through-hole wall contacts and both ends extend to outside water cooling through-hole are set in water cooling outer tube and both ends
Extend to the water-cooled inner tube outside water cooling outer tube；It is provided between the inner wall and water-cooled inner tube outer wall at water cooling outer tube both ends close
Feng Ti, so as to fit sealing and form first runner between water cooling outer tube and water-cooled inner tube；The one end side of the water cooling outer tube
It is provided with the water inlet pipe being connected to first runner on wall, the outlet pipe being connected to first runner is provided on the side wall of the other end；
The water-cooled inner tube is internally provided with second flow channel.
The working principle and process of the technical program are as follows：
It should be clear that a kind of antiscale water-cooled bearing watt described in the technical program, except being described material properties
Outside component, remaining part has the metal material for being easy to thermally conductive to be made, metal material here can be but not limited to thermally conductive steel,
Copper, aluminium etc..It is contact relation between water cooling outer tube and water cooling through-hole, contact relation here refers to the outer wall dimension of water cooling outer tube
It is equal sized with water cooling through-hole wall, and allowable tolerance between the two meets after water cooling outer tube is installed in water cooling through-hole, i.e.,
Satisfaction contacted with water cooling through-hole wall, and meet water cooling outer tube can manpower act under in water cooling through-hole into and out.Water
Cold inner tube itself is tubular structure, inside be perforation, the inner space of this perforation is second flow channel, and due to passing through
Logical state, therefore water-cooled inner tube either end can be chosen as water inlet, remaining one end is as water outlet.Seal is can be real
The cricoid rubber stopper of gap seals, metal block etc. between existing water cooling outer tube and water-cooled inner tube.
In the course of work, low-temperature cooling water is injected by the water inlet pipe being arranged on water cooling outer tube first, cooling water is along the
One flow passage.Because the water cooling through-hole opened up on water cooling outer tube and bearing liner well contacts, it is good to benefit from metal
Thermal conductivity, the heat phase water cooling outer tube transmitting of bearing liner, and the tube wall temperature of water cooling outer tube is made to increase.At this point, along first
The cooling water of flow passage can gradually absorb the heat come out from water cooling outer tube under the action of the first law of thermodynamics
Amount；Water cooling outer tube temperature due to heat is absorbed declines, so that the appearance temperature difference or the temperature difference between bearing liner and water cooling outer tube expand
Greatly；Under the driving of temperature difference, the heat in bearing liner continues to transmit to water cooling outer tube along temperature gradient；The heat absorption of water cooling outer tube
It heats up and has widened the temperature between cooling water, so that the heat phase cooling water transfer that water cooling outer tube is contained；In cooling water
Above procedure constantly repeatedly, takes absorption bearing liner to be deposited during the work time to constantly drag during flowing through first runner
Heat, and as cooling water is taken from bearing liner from the cooled water of the discharge of drainpipe, it is finally reached and bearing liner is cooled down
Function.
When the cooling water in first runner is started to work and absorbs bearing liner heat to reduce bearing liner temperature, lead to
Cross the cooling water that another strand of independently supplying is passed through into second flow channel.Under identical heat exchange principle, this strand of cooling water can
Heat entrained by cooling water in first runner is absorbed, so that cooler-water temperature declines in first runner, and then is reduced
Because temperature is excessively high calcium ions and magnesium ions are precipitated and the phenomenon that forming scale on flow path wall in cooling water in first runner.In this way, this skill
Art scheme is realized to cold in first runner conducive to the cooling water in second flow channel by the sleeve design on cooling water path
But the cooling of water weakens the temperature condition of calcium ions and magnesium ions precipitation to reduce the bulk temperature of cooling water, and then realizes cold
But the good antiscale property function of water flow passage, is effectively guaranteed the cooling effect of cooling water.
Preferably, can pass through since the cooling water in first runner and second flow channel individually controls
Adjustment water velocity greatly increases cooling water flow velocity, to play the better of cooling water in first runner
Cooling effect, to improve the antiscaling effect of the technical program.But it should be noted that cooling in second flow channel in order to guarantee
The heat exchange effect of water, flow velocity, which should control, remains laminar flow shape at the position for contacting cooling water with second flow channel wall
State avoids because of the generation of turbulent flow heat transfer effect being weakened.
Preferably, water inlet of the water-cooled inner tube close to one end of water cooling outer tube outlet pipe as second flow channel is chosen,
Water outlet close to one end of water cooling outer tube water inlet as second flow channel, the advantages of this arrangement are as follows cold in second flow channel
But water first exchanges heat with the hot water in first runner after absorbing bearing liner heat first when low temperature, can make in this way
The part that water temperature is relatively high in second flow channel is obtained, i.e., the part that calcium ions and magnesium ions are easier to be precipitated takes the lead in and effectively cools down.
In this way in situation, the heat exchange efficiency in first runner in cooling water and second flow channel between cooling water is higher, so that first
A possibility that cooled effect of cooling water is more preferable in runner, and water temperature is lower, generates Structure Phenomenon is also lower.
Further, at least two flow-disturbing rings are evenly distributedly provided on the outer wall of the water-cooled inner tube；The flow-disturbing
At clearance fit between ring and water cooling outer tube.By the way that flow-disturbing ring is arranged, passes through the cooling water in first runner and be in slight
Flow-disturbing state.In this case, even if cooling water is due to Local cooling deficiency in first runner, such as in water cooling appearance
The cooling effect that the cooling water of wall obtains water-cooled inner tube will be weaker than the cooling water close to water-cooled inner tube outer wall, and a small amount of calcium and magnesium occur
The phenomenon that ion releasing is at salt.It is formed by inorganic salt particle, under the disturbance of water flow, is not easy to be attached on first runner wall,
And then it is discharged with sweeping along for cooling water.It can be seen that the addition of flow-disturbing ring can advanced optimize the anti-caking in first runner
Dirty performance.
Closer, magnesium metal layer is coated on the flow-disturbing ring outer wall.Contacted with water due to water-cooled inner tube two sides and
It is in heated condition for a long time, is easily corroded and forms pit-hole on surface.By increasing plating metal magnesium layer on flow-disturbing ring,
Primary battery is formed between the metal material of water-cooled inner tube, with the electrolysis of the electrolysis substitution water-cooled inner tube tubing of magnesium layer, thus anti-
The corrosion for having stopped water-cooled inner tube, avoids the formation of surface pit-hole, and then it is inorganic to reduce the calcium and magnesium being precipitated in high-temperature cooling water
A possibility that salt implantation is nucleated, avoids the accumulation of scale.Moreover it is possible to extend the service life of pipeline.
Further, the water-cooled inner tube between seal and adjacent flow-disturbing ring and between flow-disturbing ring and adjacent flow-disturbing ring
Tube brush is provided on outer wall；The tube brush includes having the turbofan wheel of axis hole and being uniformly distributed circumferentially on turbofan wheel outer wall
Several brush bodies；The tube brush is set on water-cooled inner tube and between water-cooled inner tube at being slidably matched by shaft hole sleeve, so that
Tube brush is rotated around water-cooled inner tube；The brush body includes the pillar being fixed on turbofan wheel outer wall, the fixation for being set to post tips
Block and it is set to brush head of the fixed block far from pillar end surface；The brush head is far from pillar end surface and water cooling outer tube wall
Contact.For slight fouling condition that may be present, it is provided with the tube brush of turbofan wheel fouling herein, when cooling water flows through turbofan
When impeller fan page, cooling water to tube brush act on there are two types of：First be flowed through from flabellum gap, thus push turbofan wheel rotate,
And then the rotation of alternative tube brush, and during tube brush rotation, the brush head being in contact with water cooling outer tube wall is inswept inner wall, in turn
The tiny scale that will likely be formed on water cooling outer tube wall scrapes, and then carries and be discharged with cooling water；Second is to act on fan
Leaf surface pushes entire tube brush to advance along water (flow) direction, enables the inswept water cooling outer tube wall that it can be touched of brush head,
And then realize that entire water cooling outer tube wall carries out clean function under the cooperation of multiple tube brushes, furthermore in the process of tube brush movement
In, the clean function of scraping to water-cooled inner tube is also able to achieve with the contact of water-cooled inner tube outer wall by shaft hole inner wall.Therefore, it manages
The setting of brush can play comprehensive cleaning action to environment in first runner, to further avoid scale in first runner
Formation, and then more it is effectively guaranteed that cooling effect of the cooling water to bearing liner in first runner.It should be noted that the
One, the material of brush head can be but be not limited to rubber, nylon fiber, animal bristles etc. not will cause inordinate wear to metal pipe-wall
Material；Second, the transformation flowed to by cooling water in first runner may be implemented to realize back and forth first runner reciprocal clear
Clean effect.
Further, the material of the fixed block is permanent magnet.By will be with magnetic fixed block, in rotation
Changing magnetic field is generated, so that rule movement and reducing mutually is collided under the influence of a magnetic field for various ions in water
Probability, and then reduce a possibility that calcium ions and magnesium ions are at salt.In this way, just further itself reduces in first runner from cooling water
A possibility that fouling.
Further, the seal is axle envelope；The axle envelope includes that the sealing of several fixing grooves is offered on inner sidewall
Ring is set to the sealing ring in fixing groove with several；At interference between the lateral wall of the sealing ring and the inner wall of water cooling outer tube
Cooperation；The inside of each sealing ring is contacted with the outer wall of water-cooled inner tube.The material of the sealing ring can be but unlimited
It can be but be not limited to rubber in the material of stainless steel, the sealing ring.By designing axle envelope part, when needing to clean and repair,
Only need to extract out water-cooled inner tube, can easily carry out the later separation of remaining each component, this allow for by water-cooled inner tube and
Water cooling outer tube is formed by the cleaning easy to disassemble of bearing liner water cooling tube and maintenance, to substantially increase the operation of cleaning and maintenance
Efficiency significantly reduces cost of labor, while also improving the service life of water cooling tube, has saved use cost.
In conclusion the beneficial effect of the present invention compared to the prior art is：
(1) it by the sleeve design on cooling water path, realizes conducive to the cooling water in second flow channel to first runner
In the cooling of cooling water weaken the temperature condition of calcium ions and magnesium ions precipitation, Jin Ershi to reduce the bulk temperature of cooling water
The good antiscale property function of having showed cooling water flow conduits, is effectively guaranteed the cooling effect of cooling water；
(2) there is the design of multiple good antiscale property, first is that adjusted by temperature and magnetization come reduce ion at salt ability,
Second is that improve inner wall of the pipe integrity degree with reduce metal salt by inner wall of the pipe absorption be nucleated so that develop be scale a possibility that, three
It is to brush the small scale actively removed and adhered to by turbulent water and tube brush；Pass through above-mentioned multiple action, this technology side
Case has extremely strong water channel good antiscale property ability, and effect stability is reliable；
(3) structure is simple, convenient for unpicking and washing and repairing, does not need to carry out shutdown operation i.e. to the hydraulic turbine during maintenance
It is achievable, the duration of hydraulic turbine single work is substantially prolonged, so that the remarkable in economical benefits of hydraulic turbine work mentions
It rises.
Detailed description of the invention
Fig. 1 is a kind of main view of antiscale water-cooled bearing watt in the present invention
Fig. 2 is a kind of cross-sectional view of antiscale water-cooled bearing watt in the present invention
Fig. 3 is the partial enlargement diagram of position A in Fig. 2
Fig. 4 is the partial enlargement diagram of position B in Fig. 2
Fig. 5 is the structural schematic diagram of tube brush in the present invention
In figure label for：1- upper bearing (metal) watt, 2- water cooling through-hole, 3- lower bearing watt, 4- second flow channel, 5- first runner, 6-
Water inlet pipe, 7- water-cooled inner tube, 8- water cooling outer tube, 9- outlet pipe, 10- flow-disturbing ring, 11- tube brush, 12- sealing ring, 13- sealing ring,
14- axis hole, 15- turbofan wheel, 16- pillar, 17- fixed block, 18- brush head, 19- seal.
Specific embodiment
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
In order to make those skilled in the art more fully understand technical solution of the present invention, below with reference to Fig. 1~5 and specifically
Embodiment the present invention is described in further detail.
Embodiment 1
Such as Fig. 1~4, a kind of antiscale water-cooled bearing watt, including the upper bearing (metal) watt 1 and lower bearing watt 3 being mutually permanently connected；Institute
That states lower bearing watt 3 is internally provided with several water cooling through-holes 2；Water cooling tube is mounted in each water cooling through-hole 2；It is described
Water cooling tube includes the water cooling outer tube 8 that outer wall is contacted with 2 inner wall of water cooling through-hole and both ends extend to outside water cooling through-hole 2, is set to
In water cooling outer tube 8 and both ends extend to the water-cooled inner tube 7 outside water cooling outer tube 8；In the inner wall and water cooling at 8 both ends of water cooling outer tube
It is provided with seal 19 between 7 outer wall of pipe, so as to fit sealing and be formed first-class between water cooling outer tube 8 and water-cooled inner tube 7
Road 5；The water inlet pipe 6 being connected to first runner 5 is provided on the one end side wall of the water cooling outer tube 8, on the side wall of the other end
It is provided with the outlet pipe 9 being connected to first runner 5；The water-cooled inner tube 7 is internally provided with second flow channel 4.
The working principle and process of the technical program are as follows：
In the course of work, low-temperature cooling water is injected by the water inlet pipe 6 being arranged on water cooling outer tube 8 first, cooling water along
First runner 5 flows.Because the water cooling through-hole 2 opened up on water cooling outer tube 8 and bearing liner well contacts, it is good to benefit from metal
The heat phase water cooling outer tube 8 of good thermal conductivity, bearing liner transmits, and the tube wall temperature of water cooling outer tube 8 is made to increase.At this point, edge
First runner 5 flow cooling water under the action of the first law of thermodynamics, can gradually absorb and be given out from water cooling outer tube 8
The heat come；Temperature due to heat is absorbed of water cooling outer tube 8 declines, so that the appearance temperature difference between bearing liner and water cooling outer tube 8
Or the temperature difference expands；Under the driving of temperature difference, the heat in bearing liner continues to transmit to water cooling outer tube 8 along temperature gradient；Water
The cold heat absorption of outer tube 8 heats up and has widened the temperature between cooling water, so that the heat phase cooling water that water cooling outer tube 8 is contained turns
It moves；Above procedure constantly repeatedly, takes absorption bearing liner working to constantly drag during cooling water flows through first runner 5
Deposited heat in the process, and as cooling water is taken from bearing liner from the cooled water of the discharge of drainpipe, it is finally reached to axis
It holds and watt carries out cooling function.
When the cooling water in first runner 5 is started to work and absorbs bearing liner heat to reduce bearing liner temperature,
By the cooling water for being passed through another strand of independently supplying into second flow channel 4.Under identical heat exchange principle, the cooling water energy of this stock
Heat entrained by cooling water in first runner 5 is enough absorbed, so that cooler-water temperature declines in first runner 5, and then is subtracted
Cooling water is lacked in first runner 5 and calcium ions and magnesium ions has been precipitated and the phenomenon that forming scale on flow path wall because temperature is excessively high.In this way,
The technical program is realized to first runner 5 conducive to the cooling water in second flow channel 4 by the sleeve design on cooling water path
In the cooling of cooling water weaken the temperature condition of calcium ions and magnesium ions precipitation, Jin Ershi to reduce the bulk temperature of cooling water
The good antiscale property function of having showed cooling water flow conduits, is effectively guaranteed the cooling effect of cooling water.
Preferably, can lead to since the cooling water in first runner 5 and second flow channel 4 individually controls
Crossing adjustment water velocity greatly increases cooling water flow velocity, to play in first runner 5 cooling water more
Good cooling effect, to improve the antiscaling effect of the technical program.But it should be noted that guarantee second flow channel 4
The heat exchange effect of middle cooling water, flow velocity should control to be remained at the position for contacting cooling water with 4 wall of second flow channel
Laminar condition avoids because of the generation of turbulent flow heat transfer effect being weakened.
Preferably, choosing water inlet of the water-cooled inner tube 7 close to one end of 8 outlet pipe 9 of water cooling outer tube as second flow channel 4
Mouthful, the water outlet close to one end of 8 water inlet of water cooling outer tube as second flow channel 4, the advantages of this arrangement are as follows second flow channel 4
In cooling water first exchange heat with the hot water in first runner 5 after absorbing bearing liner heat first when low temperature, this
Sample enables to the part that water temperature is relatively high in second flow channel 4, i.e., the part that calcium ions and magnesium ions are easier to be precipitated takes the lead in and effectively
It cools down.In this way in situation, the heat exchange efficiency in first runner 5 in cooling water and second flow channel 4 between cooling water is higher, into
And make the cooled effect of cooling water in first runner 5 more preferable, water temperature is lower, generate Structure Phenomenon a possibility that also get over
It is low.
Embodiment 2
Based on embodiment 1, such as Fig. 2 and 3, the metal salt being likely to form in order to prevent adsorbs deposition on 5 wall of first runner,
Following improvement is carried out：At least two flow-disturbing rings 10 are evenly distributedly provided on the outer wall of the water-cooled inner tube 7；The flow-disturbing
At clearance fit between ring 10 and water cooling outer tube 8.By the way that flow-disturbing ring 10 is arranged, pass through at the cooling water in first runner 5
In slight flow-disturbing state.In this case, even if cooling water is due to Local cooling deficiency in first runner 5, such as close to water
The cooling effect that the cooling water of cold appearance inner wall obtains water-cooled inner tube 7 will be weaker than the cooling water close to 7 outer wall of water-cooled inner tube, and go out
The phenomenon that now a small amount of calcium ions and magnesium ions are precipitated into salt.It is formed by inorganic salt particle, under the disturbance of water flow, is not easy to be attached to first
On 5 wall of runner, and then it is discharged with sweeping along for cooling water.It can be seen that the addition of flow-disturbing ring 10 can advanced optimize first
Scale-preventing performance in runner 5.
Embodiment 3
Based on embodiment 2, nearby tube wall forms the flaw adsorbed conducive to metal salt because of corrosion to first runner 5 in order to prevent
Point has carried out following improvement：Magnesium metal layer is coated on 10 outer wall of flow-disturbing ring.Since 7 two sides of water-cooled inner tube are contacted with water
And it is in heated condition for a long time, it is easily corroded and forms pit-hole on surface.By increasing plating metal magnesium on flow-disturbing ring 10
Layer, forms primary battery between the metal material of water-cooled inner tube 7, and the electrolysis of 7 tubing of water-cooled inner tube is substituted with the electrolysis of magnesium layer,
To prevent the corrosion of water-cooled inner tube 7, the formation of surface pit-hole is avoided, and then reduce the calcium being precipitated in high-temperature cooling water
A possibility that magnesium inorganic salts implantation is nucleated, avoids the accumulation of scale.Moreover it is possible to extend the service life of pipeline.
Embodiment 4
Based on embodiment 2, such as Fig. 1~5, in order to realize the active cleaning function to the neighbouring inner wall of the pipe of first runner 5, into
Following improvement is gone：In water cooling between seal 19 and adjacent flow-disturbing ring 10 and between flow-disturbing ring 10 and adjacent flow-disturbing ring 10
Tube brush 11 is provided on 7 outer wall of pipe；The tube brush 11 include with axis hole 14 turbofan wheel 15 and be uniformly distributed circumferentially in
Several brush bodies on 15 outer wall of turbofan wheel；The tube brush 11 by axis hole 14 be sheathed on water-cooled inner tube 7 and with water-cooled inner tube 7
Between at being slidably matched so that tube brush 11 is rotated around water-cooled inner tube 7；The brush body includes the branch being fixed on 15 outer wall of turbofan wheel
Column 16, the fixed block 17 for being set to 16 end of pillar and it is set to brush head 18 of the fixed block 17 far from 16 end surface of pillar；Institute
It states brush head 18 and is contacted far from 16 end surface of pillar with 8 inner wall of water cooling outer tube.For slight fouling condition that may be present, herein
It is provided with the tube brush 11 of 15 fouling of turbofan wheel, when cooling water flows through turbofan impeller fan page, cooling water has the effect of tube brush 11
Two kinds：First is flowed through from flabellum gap, to push turbofan wheel 15 to rotate, and then alternative tube brush 11 rotates, and in tube brush
During 11 rotations, the inswept inner wall of brush head 18 being in contact with 8 inner wall of water cooling outer tube, and then water cooling outer tube will likely be formed in
Tiny scale on 8 inner walls scrapes, and then carries and be discharged with cooling water；Second is to act on blade surface, pushes entire tube brush
11 advance along water (flow) direction, enable inswept 8 inner wall of water cooling outer tube that it can be touched of brush head 18, and then in multiple tube brushes
It realizes that entire 8 inner wall of water cooling outer tube carries out clean function under 11 cooperation, furthermore during tube brush 11 moves, passes through axis
14 inner wall of hole is also able to achieve with the contact of 7 outer wall of water-cooled inner tube to the clean function of the scraping of water-cooled inner tube 7.Therefore, tube brush 11
Setting can play comprehensive cleaning action to environment in first runner 5, to further avoid scale in first runner 5
Formation, and then more it is effectively guaranteed that cooling effect of the cooling water to bearing liner in first runner 5.It should be noted that logical
The transformation that cooling water flows in first runner 5 is crossed, may be implemented to realize back and forth first runner 5 reciprocal cleaning action, it is proposed that
The flow direction of cooling water in first runner 5 and second flow channel 4 is periodically converted simultaneously.
Embodiment 5
Based on embodiment 4, in order to further decrease metal ion in cooling water at salt probability, carried out following improvement：
The material of the fixed block 17 is permanent magnet.By the way that changing magnetic field will be generated in rotation with magnetic fixed block 17,
So that rule moves and reduces the probability mutually collided the various ions in water under the influence of a magnetic field, and then reduce
A possibility that calcium ions and magnesium ions are at salt.In this way, a possibility that just further from cooling water itself reduces fouling in first runner 5.
Embodiment 6
Based on embodiment 1, as Figures 1 and 4, for the ease of the cleaning and maintenance of water cooling tube, following improvement has been carried out：It is described close
Envelope body 19 is axle envelope；The axle envelope include offered on inner sidewall several fixing grooves sealing ring 12 and several be set to fixation
Sealing ring 13 in slot；At interference fit between the lateral wall of the sealing ring 12 and the inner wall of water cooling outer tube 8；It is each described close
The inside of seal 13 is contacted with the outer wall of water-cooled inner tube 7.By designing axle envelope part, when needing to clean and repair, it is only necessary to will
Water-cooled inner tube 7 is extracted out, can easily carry out the later separation of remaining each component, this is allowed for outside by water-cooled inner tube 7 and water cooling
Pipe 8 is formed by the cleaning easy to disassemble of bearing liner water cooling tube and maintenance, so that the operating efficiency of cleaning and maintenance is substantially increased,
Cost of labor is significantly reduced, while also improving the service life of water cooling tube, has saved use cost.
The specific embodiment of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application protection scope therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, under the premise of not departing from technical scheme design, various modifications and improvements can be made, these belong to this
The protection scope of application.
Claims (6)
1. a kind of antiscale water-cooled bearing watt, including the upper bearing (metal) watt (1) and lower bearing watt (3) being mutually permanently connected；The lower axle
That holds watt (3) is internally provided with several water cooling through-holes (2)；It is characterized in that：It is mounted in each water cooling through-hole (2)
Water cooling tube；The water cooling tube includes that outer wall contacts and both ends extend to the water of water cooling through-hole (2) outside with water cooling through-hole (2) inner wall
Cold outer tube (8) is set in water cooling outer tube (8) and both ends extend to the water-cooled inner tube (7) of water cooling outer tube (8) outside；The water cooling
Seal (19) are provided between the inner wall and water-cooled inner tube (7) outer wall at outer tube (8) both ends, so that water cooling outer tube (8) and water
Fit sealing and first runner (5) are formed between cold inner tube (7)；Be provided on the one end side wall of the water cooling outer tube (8) with
The water inlet pipe (6) of first runner (5) connection, is provided with the outlet pipe (9) being connected to first runner (5) on the side wall of the other end；
The water-cooled inner tube (7) is internally provided with second flow channel (4).
2. a kind of antiscale water-cooled bearing watt according to claim 1, it is characterised in that：The outer wall of the water-cooled inner tube (7)
On be evenly distributedly provided at least two flow-disturbing rings (10)；Match between the flow-disturbing ring (10) and water cooling outer tube (8) at gap
It closes.
3. a kind of antiscale water-cooled bearing watt according to claim 2, it is characterised in that：It is plated on flow-disturbing ring (10) outer wall
There is magnesium metal layer.
4. according to a kind of described in any item antiscale water-cooled bearings watt of claim 2, it is characterised in that：Seal (19) with it is adjacent
Pipe is provided on water-cooled inner tube (7) outer wall between flow-disturbing ring (10) and between flow-disturbing ring (10) and adjacent flow-disturbing ring (10)
It brushes (11)；The tube brush (11) includes having the turbofan wheel (15) of axis hole (14) and being uniformly distributed circumferentially in turbofan wheel (15) outside
Several brush bodies on wall；The tube brush (11) by axis hole (14) be sheathed on water-cooled inner tube (7) and with water-cooled inner tube (7) it
Between at being slidably matched so that tube brush (11) is rotated around water-cooled inner tube (7)；The brush body includes being fixed on turbofan wheel (15) outer wall
Pillar (16), be set to the fixed block (17) of pillar (16) end and be set to fixed block (17) far from pillar (16) one end table
The brush head (18) in face；The brush head (18) contacts far from pillar (16) end surface with water cooling outer tube (8) inner wall.
5. a kind of antiscale water-cooled bearing watt according to claim 4, it is characterised in that：The material of the fixed block (17) is
Permanent magnet.
6. a kind of antiscale water-cooled bearing watt according to claim 1, it is characterised in that：The seal (19) is axle envelope；
The axle envelope include offered on inner sidewall several fixing grooves sealing ring (12) and several be set to the sealing in fixing groove
It encloses (13)；At interference fit between the lateral wall of the sealing ring (12) and the inner wall of water cooling outer tube (8)；Each sealing ring
(13) inside is contacted with the outer wall of water-cooled inner tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810606275.8A CN108825666A (en) | 2018-06-13 | 2018-06-13 | A kind of antiscale water-cooled bearing watt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810606275.8A CN108825666A (en) | 2018-06-13 | 2018-06-13 | A kind of antiscale water-cooled bearing watt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825666A true CN108825666A (en) | 2018-11-16 |
Family
ID=64145091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810606275.8A Pending CN108825666A (en) | 2018-06-13 | 2018-06-13 | A kind of antiscale water-cooled bearing watt |
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| Country | Link |
|---|---|
| CN (1) | CN108825666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345161A (en) * | 2019-08-19 | 2019-10-18 | 枣庄鑫金山智能机械股份有限公司 | A kind of dedicated main shaft copper sheathing of circular cone sand making machine |
-
2018
- 2018-06-13 CN CN201810606275.8A patent/CN108825666A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345161A (en) * | 2019-08-19 | 2019-10-18 | 枣庄鑫金山智能机械股份有限公司 | A kind of dedicated main shaft copper sheathing of circular cone sand making machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181116 |