CN106122014B - A kind of liquid rotary compressor - Google Patents
A kind of liquid rotary compressor Download PDFInfo
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- CN106122014B CN106122014B CN201610717482.1A CN201610717482A CN106122014B CN 106122014 B CN106122014 B CN 106122014B CN 201610717482 A CN201610717482 A CN 201610717482A CN 106122014 B CN106122014 B CN 106122014B
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- Prior art keywords
- impeller
- bearing
- ring
- axis
- end cap
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of liquid rotary compressor belongs to liquid rotary compressor technical field.Impeller (13) both sides connect drive end bearing bracket (1) and rear end cap (15) by preceding distribution plate (11) and rear distribution plate (14) respectively, it is characterised in that：There are one the impeller (13) is set, gap between impeller (13) both sides and preceding distribution plate (11) and rear distribution plate (14) is 0.0005~0.0015 times of impeller (13) diameter, double mechanical seal (23) is respectively equipped between drive end bearing bracket (1) and the inner cavity and the axis (6) of rear end cap (15), the preceding distribution plate (11), rear distribution plate (14) are mounted on automatic pressure regulating device.The present invention has the features such as isotherm compression, smooth running are reliable, simple in structure, working service is convenient, large-minded under rated discharge pressure.The flexible exhaust structure of exhaust end, it is ensured that compressor makes compressor always work on best efficiency point without overcompression phenomenon.
Description
Technical field
A kind of liquid rotary compressor belongs to liquid rotary compressor technical field.
Background technology
Liquid rotary compressor is mainly used for the inflammable of the industries such as chemical industry, petrochemical industry, oil, natural gas, coal, town gas liquefaction
Compression, conveying and the recycling of explosion hazard gases.The principle of liquid rotary compressor, impeller are eccentrically disposed in the pump housing, and in the pump housing
Introduce a certain amount of water or other liquid.When impeller (rotor) rotates and reaches certain rotating speed, due to the effect of centrifugal force, liquid
It is thrown out of, forms a pendular ring for being attached to pump housing inner surface.A month teeth cavity is formed between impeller surface and pendular ring, it is several
The cell (element volume) that volume does not wait.The volume of each cell of liquid rotary compressor with impeller rotation period expand and contract
It is small.Suction, exhaust outlet are correspondingly offered on the end cap of pump housing both sides.In this way, impeller rotates a circle, can hold in each primitive
Air-breathing, compression, exhaust and expansion process that may be present are realized in product.Gas discharge can take a part of liquid out of, so necessary
A certain amount of new liq is supplemented in air entry.When liquid rotary compressor works, the smaller liquid of viscosity is selected as far as possible.Pendular ring compresses
The characteristics of machine is simple in structure, and manufacture is easy, and easy to operate, quick-wear part is few, and the pulsating nature and noise of exhaust are all smaller.This
Outside, liquid has sufficient cooling effect, and compressed gas finishing temperature is very low, so liquid rotary compressor is suitable under compression high temperature easily
The gas of decomposition, such as acetylene, nitric sulfid, hydrogen sulfide.Since compressed media and the pump housing are not directly contacted with, liquid rotary compressor is also special
The gas (such as chlorine) with strong corrosive Shi Yongyu not compressed.One kind can be selected in this case not rise with by compressed gas
The liquid of effect is as sealing fluid, concentrated sulfuric acid when such as compressing chlorine.
Invention content
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide it is a kind of it is simple in structure, operating is flat
Steady liquid rotary compressor that is reliable, large-minded under rated discharge pressure and being easy to maintenance.
The technical solution adopted by the present invention to solve the technical problems is：This kind of liquid rotary compressor, including be sleeved on axis
Drive end bearing bracket, the pump housing, impeller and rear end cap, impeller by eccentric shaft be mounted on the pump housing in, drive end bearing bracket and rear end cap lead to respectively
Bearing to be crossed to be mounted on an axle, the impeller both sides connect drive end bearing bracket and rear end cap by preceding distribution plate with rear distribution plate respectively,
It is characterized in that：There are one the impeller is set, the gap between impeller both sides and preceding distribution plate and rear distribution plate is impeller
It is respectively equipped with Double End between the inner cavity and the axis of 0.0005~0.0015 times of diameter, the drive end bearing bracket and rear end cap
Mechanical seal, preceding distribution plate, rear distribution plate are mounted on automatic pressure regulating device.
The present invention has that isotherm compression, smooth running are reliable, simple in structure, working service is convenient, in rated discharge pressure
Under it is large-minded the features such as.Since the compressor of the present invention has and only there are one impeller, on the basis of an impeller, through it is long when
Between study, the gap between optimum choice impeller and preceding distribution plate and rear distribution plate not only simplifies pump body structure, reduces pump
Body own vol and weight, structure type is simpler, energy saving, reduces the installation and maintenance of parts, and can guarantee huge discharge
Needs, while also reduce operation in failure appearance, be easy to maintenance.
Automatic pressure regulating device preferably using the pressure regulation valve ball that can automatically adjust pressure at expulsion, passes through the pressure regulation knot of automatic Regulation
Structure forms flexible exhaust mode in exhaust end, it is ensured that compressor makes compressor always work in most without overcompression phenomenon
On good efficient point.Using the double mechanical seal of outer flushing, ensure the complete No leakage of compressed medium.
Cooling body and postcooling mechanism, the preceding cooling before being respectively equipped on the outside of the drive end bearing bracket and rear end cap
Respective inlet and outlet are respectively set in the both ends of mechanism and postcooling mechanism.
Cooling body and postcooling mechanism before being respectively equipped on the outside of drive end bearing bracket and rear end cap, preceding cooling body and rear cold
But respective inlet and outlet are respectively set in the both ends of mechanism, so as to ensure in preceding cooling body and postcooling mechanism
Water remain cycle, and then the temperature of cooling body and postcooling water within the organization is relatively low before ensureing, to preferably will
The heat that bearing generates quickly is taken away, additionally it is possible to the heat for being generated bearing by the conduction of preceding cooling body and postcooling mechanism
It quickly takes away, the heat for making bearing generate by water cooling on the basis of natural cooling quickly distributes, and ensure that bearing exists
It is run in one good environment, improves the performance and used life of bearing, reduce the frequency of maintenance of water ring compressor.
Preferably, drive end bearing bracket and rear end cap include the air inlet and exhaust outlet being arranged on end cap ontology and end cap ontology,
Air inlet is arranged in the surface of end cap ontology, and exhaust outlet is arranged in the middle part of end cap ontology side, end cap body lower part side and sets
There are working solution import, and the emptier for emptying end cap and pump body liquid, end cap ontology outer rim to be equipped with multiple hang
Multiple mounting holes and hole for hoist are arranged by lifting lug in ear.Air inlet is arranged in the surface of end cap ontology, and exhaust outlet setting is existed
Side in the middle part of end cap ontology, it is preferred that the bore of exhaust outlet is made it is larger, when something goes wrong, can passing through in pump chamber
Exhaust outlet puts in hand and tool to replace easily worn part；Multiple lifting lugs are equipped in end cap ontology outer rim, and can be arranged by lifting lug
Multiple mounting holes and hole for hoist are firmly assembled with compressor main body by mounting hole, compressor complete machine are realized by hole for hoist
Or the lifting of liquid rotary compressor end cap, it avoids deforming caused by directly lifting end cap internal structure, gives the internal junction of compressor
It is configured to damage, and then influences compressor performance.
Preferably, the height of the end face of drive end bearing bracket and rear end cap is 350~2000mm, and width is 400~1800mm.Increase
Drive end bearing bracket and the scope of application of rear end cap and the use scope of compressor, realize the use demand of large-scale compressor.
Preferably, emptier includes pump housing evacuation port and end cap evacuation port, and pump housing evacuation port is arranged in end cap body end
The positive bottom in face, end cap evacuation port are arranged in pump housing evacuation port side.Pump housing evacuation port and end cap evacuation port is respectively set, can incite somebody to action
The liquid of end cap chamber body and pump housing inner cavity is discharged respectively, and when compressor shutdown, liquid can be emptied by the pump housing in the pump housing
Mouth outflow；End cap evacuation port is on the side of pump housing evacuation port, and with gas outlet at the same side, compressor shutdown, end cap cavity is empty
Between liquid can be flowed out by end cap evacuation port, the effective thorough discharge for ensureing the pump housing and the liquid in end cap.
The diameter D of the impeller is 200~1000mm, and the width B of impeller is 60~700mm.
Pressure at expulsion is 0.1~0.9MpaG, and tolerance is 3~200m3/min。
The hub diameter d of the impeller is 0.4~0.6D, and wheel hub angle, θ is 3~8 °.
The interior arc radius R1 of the blade of the impeller is 0.15~0.2D, and the outer arc radius R2 of blade is 0.2~0.3D,
Circular diameter D1 where the inner arc center of circle of blade is 0.8~0.9D, circular diameter D2 where the outer arc center of circle of blade is 0.75~
The inclination alpha of 0.85D, root of blade are 3~8 °, and blade quantity is 17~23.Impeller profile and exhaust angle are optimized, it is only sharp
Pressure at expulsion can be reached 0.1~0.9MpaG with an impeller, realize the demand of huge discharge.
The bearing is single row roller bearing, and single row roller bearing side, which is respectively equipped with, to be sleeved on axis
Oil sealing, oil sealing include middle ring, inner ring and outer rings, and middle ring end face interference is mounted on outer shroud, and the inner ring floating mount is in
The inside of ring and outer shroud, the outer ring of middle ring and the inner ring of inner ring are respectively equipped with sealing device, and middle ring is equipped with refluxing opening, refluxing opening
It is connected to the inner space of middle ring and outer shroud；Sealing device is sealing ring, and the outer ring of middle ring and the inner ring of inner ring are respectively equipped with installation
The annular seal groove of sealing ring, the seal groove on the outer ring of middle ring and the inner ring of inner ring is respectively at least provided with one group.
Inside and outside two layers of sealing ring is formed by middle ring, inner ring and outer rings, middle ring forms fixed bed, inner ring with outer shroud in outer layer
Inner space therebetween is floated, and axis can be followed to rotate together, and forms internal layer, moreover, the outer ring of middle ring and inner ring is interior
Circle is respectively equipped with sealing device, not only ensure that the friction that the oil in oil sump will not leak, but also be avoided that between inner ring and axis, meets
The lubricating condition of thin oil lubricant, meanwhile, and ensure sealing effect, and it avoids rubbing, the service life of extending shaft.When equipment is run
When, due to bearing rotation the problems such as, the oil of oil sump can be splashed on the oil sealing of water ring compressor, due to middle ring sealing ring and interior
The sealing function of ring sealing ring, lubricating oil can be flowed back by refluxing opening in oil sump.Since inner ring is compared by inner ring seal circle
Closely being mounted on an axle between axis does not have relative friction, therefore, will not be damaged to axis because of relative friction.
The preceding cooling body includes preceding cooling chamber, preceding cooling chamber cap and preceding water cavity, and preceding cooling chamber inner face, which is fixed, to be connected
The bearing block on the outside of the drive end bearing bracket is connect, outer end face cooling chamber cap before being fixed with, preceding cooling chamber, which is internally provided with, surround preceding cooling
The preceding water cavity of chamber body setting；
Postcooling mechanism includes postcooling room and rear water cavity, is equipped in postcooling room after postcooling chamber body setting
Water cavity, end face is fixedly connected with the bearing block on the outside of the rear end cap in postcooling room, the outer end face in postcooling room be equipped with it is axial calmly
Position mechanism seals end face outside postcooling room by axial positioning mechanism；
The top of the preceding water cavity and rear water cavity disconnects setting, and is respectively set at the both ends of preceding water cavity and rear water cavity
Respective inlet and outlet.
The axial positioning mechanism includes positioning bearing seat, positions bearing gland, angular contact ball bearing and locking nut,
Positioning bearing seat is sleeved on the end of axis, and its inner face is fixedly connected with the postcooling room, and outer end face is fixedly connected fixed
Position bearing gland, angular contact ball bearing is sleeved on axis by positioning bearing seat and outer end is fastened by locking nut.
Cooling water is equipped in preceding water cavity and rear water cavity, it can be by the heat fast speed belt of the lubricating oil in preceding oil sump and rear oil sump
It walks, but also can quickly be taken away the heat that bearing generates by the conduction of preceding cooling chamber and postcooling room, in natural cooling
On the basis of by water cooling make bearing generate heat quickly distribute, ensure that bearing is transported in a good environment
Row, improves the performance and used life of bearing, reduces the frequency of maintenance of water ring compressor；The top of preceding water cavity and rear water cavity
It disconnects, and inlet and outlet are connected to the both ends of preceding water cavity and rear water cavity respectively, so as to ensure preceding water cavity with after
Water in water cavity remains cycle, and then ensures that the temperature of preceding water cavity and the water in rear water cavity is relatively low, to preferably by axis
The heat for holding generation is quickly taken away.
The disc being sleeved on axis is equipped in the postcooling room, disc is held out against by bearing spacer inner end in axis
On, bearing spacer outer end is fixedly connected with the angular contact ball bearing.
Compared with prior art, advantageous effect possessed by the present invention is：The present invention has isotherm compression, smooth running can
Lean on, be simple in structure, working service it is convenient, it is large-minded under rated discharge pressure the features such as.Specifically, in drive end bearing bracket and rear end cap
Outside be respectively equipped with before cooling body and postcooling mechanism, the both ends of preceding cooling body and postcooling mechanism are respectively set respectively
Inlet and outlet, remain cycle, Jin Erbao so as to cooling body before ensureing and postcooling water within the organization
The temperature of cooling body and postcooling water within the organization is relatively low before card, to which preferably the heat that bearing generates quickly be taken away,
The heat that bearing generates can also quickly be taken away by the conduction of forward and backward cooling body, pass through on the basis of natural cooling
The heat that water cooling makes bearing generate quickly distributes, and ensure that bearing is run in a good environment, improves bearing
Performance and used life, reduce the frequency of maintenance of water ring compressor.
Automatic pressure regulating device preferably using the pressure regulation valve ball that can automatically adjust pressure at expulsion, passes through the pressure regulation knot of automatic Regulation
Structure forms flexible exhaust mode in exhaust end, it is ensured that compressor makes compressor always work in most without overcompression phenomenon
On good efficient point.Using the double mechanical seal of outer flushing, ensure the complete No leakage of compressed medium.Can be widely applied to
Compression, conveying and the recycling of the flammable explosive gas of industries such as work, petrochemical industry, oil, natural gas, coal, town gas liquefaction.
Description of the drawings
Fig. 1 is the front view partial schematic sectional view of the liquid rotary compressor of the present invention.
Fig. 2 is the side view schematic diagram of the liquid rotary compressor of the present invention.
Fig. 3 is the cooling body schematic view of the mounting position of Fig. 2.
Fig. 4 is the part A enlarged diagram of Fig. 3.
Fig. 5 is the schematic cross-sectional view in the directions B-B in Fig. 3.
Fig. 6 is the partial enlarged view at C in Fig. 5.
Fig. 7 is blade wheel structure front view schematic diagram.
Fig. 8 is the side view schematic diagram of Fig. 7.
Fig. 9 is oil sealing installation diagram schematic diagram.
Figure 10 is the ring structures side view schematic diagram of oil sealing.
Figure 11 is the D enlarged schematic partial views of Figure 10.
Figure 12 is installation relation schematic diagram of the oil sealing in compressor.
Figure 13 is end cover structure schematic diagram.
Figure 14 is the side view schematic diagram of Figure 13.
Figure 15 is the rearview schematic diagram of Figure 13.
Wherein, 1, drive end bearing bracket 101, air inlet 102, mounting hole 103, working solution import 104, exhaust outlet 105, pump
Body evacuation port 106, end cap evacuation port 107, bearing bracket stand 108, leakage evacuation port 109, lower margin adjustment bolt hole 110, front end
Lid ontology 111, lower margin bearing 2, bearing block 3, preceding cooling chamber 301, preceding coolant jacket 4, bearing door 5, preceding cooling chamber cap
6, axis 7, hole for hoist 8, permanent position lubricating cup 9, oil sealing 901, middle ring 902, middle ring sealing ring 903, outer shroud 904, inner ring
905, inner ring seal circle 906, refluxing opening 907, groove 908, sewage draining exit 10, turnbuckle 11, preceding distribution plate 12, the pump housing
13, impeller 131, blade 14, rear distribution plate 15, rear end cap 151, rear end cap ontology 16, postcooling room 161, postcooling
It is set 17, disc 18, bearing spacer 19, positioning bearing seat 20, positioning bearing gland 21, angular contact ball bearing 22, single-row
Cylinder roller bearing 23, double mechanical seal 24, the first trip bolt 25, pressure regulation valve ball 26, the second trip bolt
27, preceding water cavity 28, rear water cavity 29, locking nut 30, water inlet 31, water outlet 32, rear oil sump 33, sealing ring.
Specific implementation mode
Fig. 1~15 are highly preferred embodiment of the present invention, and 1~15 the present invention will be further described below in conjunction with the accompanying drawings.
With reference to attached Fig. 1 and 2：A kind of liquid rotary compressor, including the drive end bearing bracket 1, the pump housing 12,13 and of impeller that are sleeved on axis 6
Rear end cap 15, impeller 13 are mounted on by the way that axis 6 is eccentric in the pump housing 12, and drive end bearing bracket 1 and rear end cap 15 are installed by bearing respectively
On axis 6, the outside of drive end bearing bracket 1 and rear end cap 15 is respectively equipped with preceding cooling body and postcooling mechanism, drive end bearing bracket 1 and rear end cap
It is respectively equipped with double mechanical seal 23 between 15 inner cavity and axis 6, passes through drawing between drive end bearing bracket 1 and rear end cap 15 and the pump housing 12
Tight bolt 10 connects, and 13 both sides of impeller connect drive end bearing bracket 1 and rear end cap 15 by preceding distribution plate 11 and rear distribution plate 14 respectively.Row
Atmospheric pressure is 0.1~0.9MpaG, and tolerance is 3~200m3/min。
Impeller 13 and axis 6 transmit torque using interference fit connection, the axially position of impeller 13 by rear end angular contact ball
The adjustment positioning of bearing 21.The rotary part that axis 6 and impeller 13 form is eccentrically mounted in the pump housing 12, and 6 both ends of axis are by single-row circle
Column roller bearing 22 support, two angular contact ball bearings 21 that rear end is installed back-to-back to rotary part axially position；Two
The axis dynamic sealing at end uses Double End integrated mechanical sealing 23, whole on axis 6.The first fastening of mechanical sealing assembly
Screw 24 is fastened on axis 6.Preceding distribution plate 11 and rear distribution plate 14 with the second trip bolt 26 be fastened on respectively drive end bearing bracket 1, after
On end cap 15.Preceding distribution plate 11, rear distribution plate 14 are mounted on automatic pressure regulating device, and automatic pressure regulating device is that automatic adjustment is vented
The pressure regulation valve ball 25 of pressure.Angular contact ball bearing 21 and single row roller bearing 22 work as bearing by the way of thin oil lubricant
When indoor lubrication oil consumption is reduced, the automatic repairing of the permanent meeting of position lubricating cup 8, bearing enclosure uses labyrinth oil seal 9, and complete machine is hung
Dress devises hole for hoist 7.
With reference to attached drawing 3~6：Preceding cooling body includes preceding cooling chamber 3, preceding cooling chamber cap 5 and preceding water cavity 27, preceding cooling chamber 3
Inner face is fixedly connected with the bearing block 2 in 1 outside of drive end bearing bracket, and cooling chamber cap 5,2 inner face of bearing block are equipped with before outer end face is fixed with
Bearing door 4, preceding cooling chamber 3 are internally provided with the preceding water cavity 27 around the 3 cavity setting of preceding cooling chamber；Postcooling mechanism includes rear cold
But room 16 and rear water cavity 28, postcooling room 16 is interior to be equipped with the rear water cavity 28 around the setting of 16 cavity of postcooling room, postcooling room 16
Inner face is fixedly connected with the bearing block 2 in 15 outside of rear end cap, and 16 outer end face of postcooling room is equipped with axial positioning mechanism, passes through axial direction
Detent mechanism seals 16 outer end face of postcooling room；The top of preceding water cavity 27 and rear water cavity 28 disconnects setting, and in preceding water cavity 27
Respective water inlet 30 and water outlet 31 is respectively set with the both ends of rear water cavity 28.It is equipped with and is sleeved on axis 6 in postcooling room 16
Disc 17, disc 17 held out against by 18 inner end of bearing spacer on axis 6, and 18 outer end of bearing spacer is fixedly connected with angular contact ball
Bearing 21.
Cooling water is equipped in preceding water cavity 27 and rear water cavity 28, it can be by the heat of the lubricating oil in preceding oil sump and rear oil sump 32
It quickly takes away, but also can quickly be taken away the heat that bearing generates by the conduction of preceding cooling chamber 3 and postcooling room 16,
The heat for making bearing generate by water cooling on the basis of natural cooling quickly distributes, and ensure that bearing in a good ring
It is run in border, improves the performance and used life of bearing, reduce the frequency of maintenance of water ring compressor；Preceding water cavity 27 and rear water
The top of chamber 28 disconnects, and water inlet 30 and water outlet 31 are connected to the both ends of preceding water cavity 27 and rear water cavity 28 respectively, to
It can ensure that the water in preceding water cavity 27 and rear water cavity 28 remains cycle, and then ensure the water in preceding water cavity 27 and rear water cavity 28
Temperature it is relatively low, to preferably by bearing generate heat quickly take away.
Specifically：As shown in figs. 34：Water cavity 28 is the circular ring shape that top disconnects afterwards, and the water inlet 30 of rear water cavity 28 is arranged
On 28 left side end of rear water cavity, the water outlet 31 of rear water cavity 28 is arranged on the end on 28 right side of rear water cavity, due to water outlet
31 are arranged on top, therefore are full of water after capable of ensureing in water cavity 28, and water inlet 30 and water outlet 31 are arranged at rear water cavity 28
On end, to make the water in entire rear water cavity 28 be in recurrent state always.The outside of water cavity 28 is equipped in multiple middle parts afterwards
The resigning portion of recessed arc-shaped, to for for the resigning of the threaded hole of stationary positioned bearing block 19.
The structure of preceding water cavity 27 is identical as the structure of rear water cavity 28, and the circular ring shape also disconnected for top, preceding water cavity 27 is intake
Before mouth 30 and water outlet 31 are also set, respectively on two ends of water cavity 27, since water outlet 31 is arranged in top, energy
It is full of water in water cavity 27 before enough guarantees, before water inlet 30 and water outlet 31 are arranged on 27 end of water cavity, before making entirely
Water in water cavity 27 is in recurrent state always.The outside of preceding water cavity 27 is equipped with the resigning portion of the arc-shaped of multiple middle part indents,
To for for the resigning of the threaded hole of stationary positioned bearing block 19.
As shown in Figure 1：Left end is the front end of the pump housing 12, and right end is the rear end of the pump housing 12.The right side of the pump housing 12 is equipped with rear cold
But room 16, postcooling room 16 are the postcooling set 161 of circular ring shape, and the left end of postcooling set 161 is by the single-row of 15 side of rear end cap
Cylinder roller bearing 22 is pressed in the bearing block 2 of 15 side of rear end cap, and the right end and positioning bearing seat 19 of postcooling set 161 are logical
Bolt is crossed to be fixedly connected.The lower part of postcooling set 161 is equipped with rear oil sump 32, and the lower part of the single row roller bearing 22 is immersed in
Afterwards in the lubricating oil in oil sump 32, to be lubricated to it.
The left side of the pump housing 12 is equipped with coolant jacket 301 before preceding cooling chamber 3, and preceding cooling chamber 3 is coolant jacket 301 before circular ring shape, preceding
The single row roller bearing 22 of 1 side of drive end bearing bracket is pressed in the bearing block 2 of 1 side of drive end bearing bracket by the right end of coolant jacket 301,
The left end of preceding coolant jacket 301 is bolted to connection with preceding cooling chamber cap 5.The lower part of preceding coolant jacket 301 is equipped with preceding oil sump, preceding
In lubricating oil before the lower part of the single row roller bearing 22 of 1 side of end cap is immersed in oil sump, to be lubricated to it.
Water cavity 28 is arranged around postcooling set 161 and positioning bearing seat 19 afterwards.The axial length of 28 lower part of water cavity is less than afterwards
The axial length of middle and upper part, to step down for rear oil sump 32, on the left of 28 middle and upper part of rear water cavity on postcooling set 161 radially
Thickness is less than the thickness of right side radially, and the axial length of the rear water cavity 28 on postcooling set 161 is less than postcooling set
161 length in an axial direction.The thickness of rear water cavity 28 radially being arranged on positioning bearing seat 19 covers 161 with setting in postcooling
The thickness of the rear water cavity 28 on right side radially is equal.The water inlet 30 of water cavity 28 and water outlet 31 are arranged at postcooling set afterwards
On 161, and radially middle part is connected to rear water cavity 28 for the lower end of water inlet 30 and water outlet 31.The cooling water on 28 top of water cavity afterwards
The heat that single row roller bearing 22 generates is taken away in time by the transmission of postcooling set 161, the lower part of rear water cavity 28 will
The heat of the lubricating oil in oil sump 32 is taken away in time afterwards, so as to quickly carry out cooling drop to single row roller bearing 22
Temperature.
Preceding water cavity 27 is arranged around preceding coolant jacket 301 and preceding cooling chamber cap 5.The axial length of 27 lower part of preceding water cavity is less than upper
The axial length in portion, to step down for preceding oil sump, the thickness on the right side of 27 middle and upper part of preceding water cavity on preceding coolant jacket 301 radially is small
In the thickness of left side radially, and the axial length of the preceding water cavity 27 on preceding coolant jacket 301 is less than preceding coolant jacket 301 along axis
To length.The thickness of preceding water cavity 27 on preceding cooling chamber cap 5 radially is set and is arranged before 301 left side of preceding coolant jacket
The thickness of water cavity 27 radially is equal.Before the water inlet 30 and water outlet 31 of preceding water cavity 27 are arranged on coolant jacket 301, and into
Radially middle part is connected to preceding water cavity 27 for the mouth of a river 30 and the lower end of water outlet 31.The cooling water on 27 top of preceding water cavity produces fore bearing
Raw heat is taken away in time by the transmission of preceding coolant jacket 301, and the lower part of preceding water cavity 27 is by the heat of the lubricating oil in preceding oil sump
It takes away in time, so as to quickly be cooled down to fore bearing.
The thickness of preceding water cavity 27 and rear water cavity 28 radially is according to preceding cooling chamber 3 and postcooling room 16 and preceding cooling chamber cap
5, the thickness setting of positioning bearing seat 19, that is, cooling chamber 3 and postcooling room 16 and preceding cooling chamber cap 5, positioning before not interfering with
The intensity of bearing block 19, and ensure the volume of preceding water cavity 27 and rear water cavity 28, to make the water in preceding water cavity 27 and rear water cavity 28
It is enough, avoid water is very few from causing water temperature raising too fast, to influence to radiate.
As shown in Figure 1：Axial positioning mechanism includes positioning bearing seat 19, positioning bearing gland 20, angular contact ball bearing 21
With locking nut 29, positioning bearing seat 19 is sleeved on the end of axis 6, and its inner face is fixedly connected with postcooling room 16, outer end
Face is fixedly connected with positioning bearing gland 20, and angular contact ball bearing 21 is sleeved on by positioning bearing seat 19 on axis 6 and outer end is logical
Cross the fastening of locking nut 29.It is equipped with angular contact ball axis between postcooling set 161 and positioning bearing seat 19 and the axis 6 of water ring compressor
21 are held, is equipped with sealing ring 33 between postcooling set 161 and the outer wall of angular contact ball bearing 21, sealing ring 33 can prevent rear water
Water in chamber 28 enters in rear oil sump 32.
With reference to attached drawing 7 and 8：Impeller 13 is provided only with one, the axis setting of the axis runout pump housing 12 of impeller 13.Impeller 13
Gap between both sides and preceding distribution plate 11 and rear distribution plate 14 is 0.0005~0.0015 times of 13 diameter of impeller.Impeller 13
Diameter D be 200~1000mm, the width B of impeller 13 is 60~700mm, and hub diameter d is 0.4~0.6D, wheel hub angle, θ
It is 3~8 °, the interior arc radius R1 of the blade 131 of impeller 13 is 0.15~0.2D, the outer arc radius R2 of blade 131 is 0.2~
0.3D, circular diameter D1 where the 131 inner arc center of circle of blade are 0.8~0.9D, and circular diameter D2 where the outer arc center of circle of blade 131 is
The inclination alpha of 0.75~0.85D, 131 root of blade are 3~8 °, and 131 quantity of blade is 17~23.
Specifically, example one：The diameter D of impeller 13 is 250mm, and the width B of impeller 13 is 75mm, and hub diameter d is
125mm, 0.5D, θ are 4 °, and the interior arc radius R1 of blade 131 is 44mm, and the outer arc radius R2 of 0.176D, blade 131 are 59mm,
0.236D, circular diameter D1 where the inner arc center of circle of blade 131 are 205mm, 0.82D, circular diameter where the outer arc center of circle of blade 131
D2 is 197.5mm, and the inclination alpha of 0.79D, 131 root of blade are 5 °, and 131 quantity of blade is 18, between impeller 13 and distribution plate
Gap be 0.3mm, 0.0012D, end cap wide 413mm, high 420mm.
Example two：The diameter D of impeller 13 is 500mm, and the width B of impeller 13 is 200mm, and hub diameter d is 256mm,
0.512D, θ are 4 °, and the interior arc radius R1 of blade 131 is 88mm, and the outer arc radius R2 of 0.176D, blade 131 are 118mm,
0.236D, circular diameter D1 where the inner arc center of circle of blade 131 are 410mm, 0.2D, circular diameter where the outer arc center of circle of blade 131
D2 is 395mm, and the inclination alpha of 0.79D, 131 root of blade are 5 °, and 131 quantity of blade is 18, between impeller 13 and distribution plate
Gap is 0.4mm, 0.0008D, end cap wide 779.5mm, high 770mm.
Example three：The diameter D of impeller 13 is 760mm, and the width B of impeller 13 is 200mm, and hub diameter d is 382mm,
0.5D, θ are 5 °, and the interior arc radius R1 of blade 131 is 133mm, and the outer arc radius R2 of 0.175D, blade 131 are 188mm,
0.247D, circular diameter D1 where the inner arc center of circle of blade 131 are 625mm, 0.822D, and circle where the outer arc center of circle of blade 131 is directly
Diameter D2 is 600mm, and 0.789D, the inclination alpha of 131 root of blade is 5 °, and 131 quantity of blade is 20, impeller 13 and distribution plate it
Between gap be 0.5mm, 0.00065D, end cap wide 1280mm, high 1350mm.
With reference to attached drawing 9~12：Bearing is single row roller bearing 22, and 22 side of single row roller bearing is respectively equipped with
The oil sealing 9 being sleeved on axis 6, oil sealing 9 include middle ring 901, inner ring 904 and outer shroud 903, and 901 end face interference of middle ring is mounted on
On outer shroud 903,904 floating mount of inner ring in the inside of middle ring 901 and outer shroud 903, the outer ring of middle ring 901 and inner ring 904 it is interior
Circle is respectively equipped with sealing device, and middle ring 901 is equipped with refluxing opening 906, and refluxing opening 906 is connected to the inside of middle ring 901 and outer shroud 903
Space；Sealing device is sealing ring, and the annular that the outer ring of middle ring 901 and the inner ring of inner ring 904 are respectively equipped with installation sealing ring is close
Sealing groove, the seal groove on the outer ring of middle ring 901 and the inner ring of inner ring 904 is respectively at least provided with one group.
904 excircle of inner ring is equipped with annular groove 907.903 middle part side of outer shroud is equipped with sewage draining exit 908.When work, such as
Shown in figure, it is mounted on 22 side of single row roller bearing, is sealed, is prevented by middle ring sealing ring 902 and inner ring seal circle 905
Oil in oil sump leaks out in equipment operation.When inner ring 904 is rotated with axis 6, the groove 907 in inner ring 904 can be in outer shroud
Vane together is formed in inner space between 903 and middle ring 901, which can prevent the oil leakage of oil sump.When extraneous miscellaneous
When matter is such as oily, water enters oil sealing 9 by the gap between outer shroud 903 and axis 6, impurity can pass through what 903 middle part of outer shroud was arranged
Sewage draining exit 908 is discharged, and prevents foreign object from entering in oil sump.At the same time, when equipment is run, due to single row roller bearing 22
Rotation the problems such as, oil sump oil can be splashed on the oil sealing 9 of water ring compressor, due to middle ring sealing ring 902 and inner ring seal
The dual sealing functions of circle 905, lubricating oil can be flowed back into oil sump again by refluxing opening 906.
With reference to attached drawing 13~15:Drive end bearing bracket 1 and rear end cap 15 include the air inlet being arranged on end cap ontology and end cap ontology
Mouth 101 and exhaust outlet 104, air inlet 101 are arranged in the surface of drive end bearing bracket ontology 110 and rear end cap ontology 151, exhaust outlet
104 are arranged under 151 middle part side of drive end bearing bracket ontology 110 and rear end cap ontology, drive end bearing bracket ontology 110 and rear end cap ontology 151
Portion side is external equipped with working solution import 103, and the emptier for emptying 12 internal liquid of end cap and the pump housing, end cap sheet
Edge is equipped with multiple lifting lugs, and multiple mounting holes 102 and hole for hoist 7 are arranged by lifting lug.Emptier includes 105 He of pump housing evacuation port
The positive bottom in 151 end face of drive end bearing bracket ontology 110 and rear end cap ontology is arranged in end cap evacuation port 106, pump housing evacuation port 105, end
Lid evacuation port 106 is arranged in 105 side of pump housing evacuation port.The height of the end face of drive end bearing bracket 1 and rear end cap 15 be 350~
2000mm, width are 400~1800mm.
Emptier includes pump housing evacuation port 105 and end cap evacuation port 106, and pump housing evacuation port 105 is arranged in drive end bearing bracket sheet
The positive bottom of 151 end face of body 110 or rear end cap ontology, end cap evacuation port 106 are arranged in 105 side of pump housing evacuation port.Drive end bearing bracket
The outer rim of ontology 110 and rear end cap ontology 151 is equipped with multiple lifting lugs, and multiple mounting holes 102 are arranged by lifting lug.Mounting hole 102
Annular is distributed on 151 outer rim of drive end bearing bracket ontology 110 and rear end cap ontology.151 both sides pair of drive end bearing bracket ontology 110 and rear end cap ontology
Claim to be equipped with two groups of holes for hoist 7.Drive end bearing bracket ontology 110 and 151 end face of rear end cap ontology are respectively equipped with the bearing bracket stand 107 of evagination,
Leakage evacuation port 108 is equipped between bearing bracket stand 107 and end cap ontology.End cap body bottom portion is equipped with lower margin bearing 111, lower margin bearing
111 are equipped with lower margin adjustment bolt hole 109.
Wherein air inlet 101 is in the surface of end cap；Exhaust outlet 104 in the side of end cap, when in pump chamber when something goes wrong,
Hand and tool can be put in by exhaust outlet 104 to replace easily worn part；Mounting hole 102 is distributed in the surrounding of end cap；Working solution
Import 103 is opposite with gas outlet in the side of end cap；Pump housing evacuation port 105 is in the intermediate lower position of end cap, compressor shutdown
When, liquid can be flowed out by pump housing evacuation port 105 in the pump housing 12；End cap evacuation port 106 on the side of pump housing evacuation port 105,
With exhaust outlet 104 at the same side, compressor shutdown, the liquid of end cap cavity space can be flowed out by end cap evacuation port 106；It hangs
Dress hole 7 is symmetrically distributed in 101 both sides of air inlet, can be lifted to complete machine and end cap, if directly hoisting axis bolster
107, it may be damaged to the internal structure of compressor because of the deformation of bearing bracket stand 107.This liquid rotary compressor end cap is installed
At the both ends of compressor, linked together by turnbuckle 10 and distribution plate, the pump housing 12.
Operation principle of the invention is as shown in Figure 1,13 bias of impeller is mounted in the pump housing 12, when impeller 13 is square clockwise
To rotation, liquid is thrown away around by the effect of centrifugal force, and rotation pendular ring, pendular ring are formed between 12 inner wall of the pump housing and impeller 13
Inner surface is detached from 13 lower part of impeller and 13 wheel hub of impeller, and many small spaces are formed between the blade 131 and pendular ring of impeller 13,
During preceding half way around (0 °~180 °), which gradually increases, pressure reduction, forms suction chamber, and gas is inhaled into, simultaneously
Blade 131 does work to pendular ring, and pendular ring kinetic energy increases；During rear half way around (180 °~360 °), boundary is gradually leaned in pendular ring
Nearly wheel hub, the space between blade 131 are gradually reduced.The acting of pendular ring compressed gas is rotated, pressure rise forms compression chamber, works as pressure
When being reduced to required pressure, gas is discharged into company with partially liq in gas-liquid separator, carries out gas-liquid separation.Impeller 13 is continuous
It ceaselessly rotates, compressor is just continuously drawn into and is discharged compressed gas.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, according to the technical essence of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (6)
1. a kind of liquid rotary compressor, including it is sleeved on axis（6）On drive end bearing bracket（1）, the pump housing（12）, impeller（13）And rear end cap
（15）, impeller（13）Pass through axis（6）Eccentric is mounted on the pump housing（12）It is interior, drive end bearing bracket（1）And rear end cap（15）Pass through axis respectively
It holds and is mounted on axis（6）On, impeller（13）Both sides pass through preceding distribution plate respectively（11）With rear distribution plate（14）Connect drive end bearing bracket（1）With
Rear end cap（15）, it is characterised in that：The impeller（13）There are one if, impeller（13）Both sides and preceding distribution plate（11）With rear point
Matching board（14）Between gap be impeller（13）0.0005 ~ 0.0015 times of diameter, drive end bearing bracket（1）And rear end cap（15）It is interior
Chamber and the axis（6）Between be respectively equipped with double mechanical seal（23）, the preceding distribution plate（11）, rear distribution plate（14）
It is mounted on automatic pressure regulating device；
The drive end bearing bracket（1）And rear end cap（15）Outside be respectively equipped with before cooling body and postcooling mechanism, before described
Respective water inlet is respectively set in the both ends of cooling body and postcooling mechanism（30）And water outlet（31）；
The preceding cooling body includes preceding cooling chamber（3）, preceding cooling chamber cap（5）With preceding water cavity（27）, preceding cooling chamber（3）Inner end
Face is fixedly connected with the drive end bearing bracket（1）The bearing block in outside（2）, outer end face cooling chamber cap before being fixed with（5）, preceding cooling chamber
（3）It is internally provided with around preceding cooling chamber（3）The preceding water cavity of cavity setting（27）；
Postcooling mechanism includes postcooling room（16）With rear water cavity（28）, postcooling room（16）It is interior to be equipped with around postcooling room（16）
The rear water cavity of cavity setting（28）, postcooling room（16）Inner face is fixedly connected with the rear end cap（15）The bearing block in outside
（2）, postcooling room（16）Outer end face is equipped with axial positioning mechanism, and postcooling room is sealed by axial positioning mechanism（16）Outer end
Face；
The preceding water cavity（27）With rear water cavity（28）Top disconnect setting, and in preceding water cavity（27）With rear water cavity（28）'s
Respective water inlet is respectively set in both ends（30）And water outlet（31）；
The axial positioning mechanism includes positioning bearing seat（19）, positioning bearing gland（20）, angular contact ball bearing（21）With
Locking nut（29）, positioning bearing seat（19）It is sleeved on axis（6）End, and its inner face is fixedly connected with the postcooling room
（16）, outer end face is fixedly connected with positioning bearing gland（20）, angular contact ball bearing（21）Pass through positioning bearing seat（19）Suit
In axis（6）Upper and outer end passes through locking nut（29）Fastening；
The postcooling room（16）Interior be equipped with is sleeved on axis（6）On disc（17）, disc（17）By bearing spacer
（18）Inner end is held out against in axis（6）On, bearing spacer（18）Outer end is fixedly connected with the angular contact ball bearing（21）.
2. a kind of liquid rotary compressor according to claim 1, it is characterised in that：The impeller（13）Diameter D be 200
~ 1000mm, impeller（13）Width B be 60 ~ 700mm.
3. a kind of liquid rotary compressor according to claim 1, it is characterised in that：Pressure at expulsion is 0.1 ~ 0.9MpaG, gas
Amount is 3 ~ 200m3/min。
4. a kind of liquid rotary compressor according to claim 2, it is characterised in that：The impeller（13）Hub diameter d
For 0.4 ~ 0.6 D, wheel hub angle, θ is 3 ~ 8 °.
5. a kind of liquid rotary compressor according to claim 2, it is characterised in that：The impeller（13）Blade（131）
Interior arc radius R1 be 0.15 ~ 0.2D, blade（131）Outer arc radius R2 be 0.2 ~ 0.3D, blade（131）Inner arc center of circle institute
It is 0.8 ~ 0.9D, blade in circular diameter D1（131）The outer arc center of circle where circular diameter D2 be 0.75 ~ 0.85D, blade（131）Root
The inclination alpha in portion is 3 ~ 8 °, blade（131）Quantity is 17 ~ 23.
6. a kind of liquid rotary compressor according to claim 1, it is characterised in that：The bearing is single-row cylinder roller axis
It holds（22）, single row roller bearing（22）Side, which is respectively equipped with, is sleeved on axis（6）On oil sealing（9）, oil sealing（9）Including middle ring
（901）, inner ring（904）And outer shroud（903）, middle ring（901）End face interference is mounted on outer shroud（903）On, the inner ring（904）
Floating mount is in middle ring（901）With outer shroud（903）Inside, middle ring（901）Outer ring and inner ring（904）Inner ring be respectively equipped with
Sealing device, middle ring（901）It is equipped with refluxing opening（906）, refluxing opening（906）It is connected to middle ring（901）With outer shroud（903）Inside
Space；Sealing device is sealing ring, middle ring（901）Outer ring and inner ring（904）Inner ring be respectively equipped with installation sealing ring ring
Shape seal groove, middle ring（901）Outer ring and inner ring（904）Inner ring on seal groove respectively at least provided with one group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717482.1A CN106122014B (en) | 2016-08-24 | 2016-08-24 | A kind of liquid rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717482.1A CN106122014B (en) | 2016-08-24 | 2016-08-24 | A kind of liquid rotary compressor |
Publications (2)
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| CN106122014B true CN106122014B (en) | 2018-10-02 |
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| CN112431758B (en) * | 2020-11-27 | 2023-06-30 | 宁波益铸智能科技有限公司 | Compressor auxiliary device for avoiding side wall collision by utilizing compression process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FI882712A (en) * | 1988-06-08 | 1989-12-09 | Pentamo Oy | VAETSKERINGKOMPRESSOR. |
| CN2303958Y (en) * | 1997-04-18 | 1999-01-13 | 孙兴忠 | Axial intake-exhaust double-action water-ring pump |
| CN201144808Y (en) * | 2007-12-27 | 2008-11-05 | 上海风根压缩机有限公司 | Water cooled oil-free lubrication sliding blade compressor |
| CN101832252B (en) * | 2010-05-05 | 2011-09-07 | 奉化市天风汽车空压机有限公司 | Energy-saving automobile water-cooling air compressor |
| CN205297957U (en) * | 2016-01-11 | 2016-06-08 | 林晓 | Novel water -ring type vacuum pump |
| CN205991014U (en) * | 2016-08-24 | 2017-03-01 | 淄博水环真空泵厂有限公司 | A kind of liquid rotary compressor |
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