CN107524605A - A kind of anticorrosive anti-wear chemical centrifugal pump - Google Patents
A kind of anticorrosive anti-wear chemical centrifugal pump Download PDFInfo
- Publication number
- CN107524605A CN107524605A CN201710987712.0A CN201710987712A CN107524605A CN 107524605 A CN107524605 A CN 107524605A CN 201710987712 A CN201710987712 A CN 201710987712A CN 107524605 A CN107524605 A CN 107524605A
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- CN
- China
- Prior art keywords
- pump
- centrifugal pump
- anticorrosive anti
- chemical centrifugal
- wear chemical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5886—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling by injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of anticorrosive anti-wear chemical centrifugal pump, including the pump housing, impeller nut, impeller, pump cover, mechanical seal group, seal box, axle sleeve, bracket, bearing gland, bearing and axle and suspension strut；The pump housing and suspension strut are connected by bolt with base；The pump housing is bolted on bracket, mechanical seal group includes mechanical sealing linkage ring and mechanical sealing static ring, wherein mechanical sealing linkage ring is arranged on impeller, and pump cover and seal box, mechanical seal group are co-located on pump shaft, together with wherein pump cover is bolted with seal box；Mechanical sealing static ring, stationary seat and spring are arranged between pump cover and seal box；Axle sleeve is enclosed on axle, and bearing gland is bolted on bracket；Axle is detachably connected with bracket.The advantages that pump has applied widely, sealing life length, and abrasion-proof corrosion-proof is without blocking, can be unlimited suitable for the medium of the acid of any concentration of the solid content less than or equal to 40%, alkali and/or salt, particle hard or soft degree.
Description
Technical field
The present invention relates to pump, especially relates to a kind of anticorrosive anti-wear chemical centrifugal pump.
Background technology
Chemical centrifugal pump is widely used in the industries such as oil, chemical industry, metallurgy, pharmacy.At present, the generalization used in the market
Work centrifugal pump can only convey the medium that physical property is similar to water（There is no impurity and particle）, and after a period of time that works, by
Cause occur internal leakage between pump leaf and the pump housing in abrasion of the material to pump leaf, and cause noise to increase, power attenuation substantially increases
Add, centrifugal pump shaft must be taken out during maintenance and be re-worked, carried out new assembling, reach the purpose of leakproof noise-proofing.
The structure of traditional chemical centrifugal pump belongs to prior art, such as discloses one kind in document CN202047988U
Chemical centrifugal pump, including mechanical sealing static ring, stationary seat, mechanical seal spring are formed, it is characterised in that：The pump housing and pump cover shape
Into annular seal space in be provided with impeller of the device in axle left end, the top of impeller is locked by impeller nut, in the right-hand member groove of impeller
It is provided with mechanical sealing linkage ring；Be cased with successively inside-out on the axle of pump cover Yu bracket connection place axle sleeve, mechanical seal spring,
Seal box；The left side in described seal box is cased with stationary seat, and spring base is provided with stationary seat, and the left end of spring base sets machine
Tool stationary seal ring, the bottom righthand side of seal box are provided with water nozzle；Bearing group is provided with axle in the right-hand member inner chamber of described bracket,
Grease nipple is provided with above bearing group, outstanding support is provided with below the right-hand member of bracket.When it is implemented, according to medium not
Together, the material system such as the chemical centrifugal pump, generally use 321,304,316, dual phase steel, CD4Mcu can be produced using unlike material
Make.Cooling water is opened before starting pump, cooling water inflow and hydraulic pressure should not be too big, as long as maintaining water flowing.As temperature is less than
60 DEG C, it is not required to add cooling water.The pressure gauge and valve closed on discharge line, if any bypass pipe, also should first be closed；Start electricity
Machine, the pressure gauge on discharge line is slowly opened, when the rotating speed of pump is normal, the valve on discharge line is slowly opened, by pressure
Adjust to required operating mode.In the case that valve on discharge line is closed, the time of pump continuous use must not exceed 3 points
Clock.During pump operation, the temperature rise of bearing is not to be exceeded 75 DEG C.Flow can not be controlled with the valve on suction line, avoid producing
Cavitation erosion；Pump must not be used continuously in the case of less than design discharge 30%；As flow is excessive, should be set on discharge line by
Passage, discharge unnecessary flow.During termination of pumping, the valve on slowly closing discharge line, such as use in the case of pouring in down a chimney, should also close
The valve closed on suction line, and close all instrument；Close cooling water；If environment temperature is less than the freezing point of conveying liquid
When, the liquid that to be vented in pump chamber, in case pump is damaged by frost；If long-time termination of pumping does not have to, in addition to the liquid emptying in by pump chamber,
Each parts also answer disassembly, cleaning clean, especially annular seal space.
Document CN200943607Y discloses a kind of high temperature Multistage centrifugal pump for chemical process, including pump shaft, impeller sets, machinery are close
Envelope, inducer, outlet section and bearing body, described bearing body are fixed on one end of the outlet section of pump, described outlet section it is another
One end is fixed together by impeller sets and described inducer；Described pump shaft is fixed on the bearing body by bearing,
Front and rear two groups of axle sleeves and mechanical seal are provided with described pump shaft, in the impeller sets and the rear axle housing and mechanical seal
Between space on be provided with described balancing drum, the balancing drum is sleeved on described pump shaft, described balancing drum it is cylindrical
Perimeter surface is provided with the groove of screw type.Due to being provided with the groove of screw type in the external peripheral surface of balancing drum, make pump
Pump shaft drives balancing drum to rotate at a high speed during, makes the axial force of liquid generation forward in balancing drum groove, the axial force
With impeller sets caused by axially rearward power cancel out each other, the rear end of pump shaft is not produced axial force, so fundamentally improve
The service life of bearing, substantially increase the operational effectiveness of pump.
Document CN2168972Y discloses a kind of mechanic sealing of multi-stage centrifugal pump for petrochemistry on centrifugal pump, should
Multistage centrifugal pump mechanical sealing is by gland ring（1）, gland（2）, pressing plate（3）, protective case（4）, float ring seal circle
（5）, floating ring（6）, spring（7）, rotating ring（8）, rotating ring sealing ring（9）, finger（10）, transmission ring（11）, fastening pad
（12）And cylinder end clamping fixed screw（13）Composition, floating ring（6）Inside stud with Circular Hard Alloy piece（14）, rotating ring（8）Interior edge
There is Circular Hard Alloy piece（15）Or it is made entirely of graphite.In use, by gland ring（1）Mounted in gland（2）Groove in after,
The suction casing of pump is mounted in together, extrudes in the end cap stuffing hole of section and leans on planar end surface, by protective case（4）Mounted in gland（2）End face
In groove, with screw by pressing plate（3）, protective case（4）, gland（2）It is fastened on end cap, by spring（7）Mounted in gland（2）End-face hole
It is interior, by float ring seal circle（5）Mounted in having inlayed hard metal tip（14）Floating ring（6）Peripheral groove in, another rise loads pressure
Lid（2）In hole and spring（7）It is top, by protective case（4）Bulb be mounted in floating ring（6）In peripheral groove, then by rotating ring（8）、
Rotating ring sealing ring（9）Together on pump shaft sleeve, by finger（10）Mounted in transmission ring（11）On, refill on axle sleeve, make to dial
Pin（10）Insert rotating ring（8）In end-face hole, make floating ring（6）Empiecement end face and rotating ring（8）Empiecement end contact, between press
The big I of power calculates sealing thrust according to pump requirement, promotes transmission ring（11）, rotating ring（8）, floating ring（6）Make spring
（7）After reaching design requirement by the pressure of compression generation reaction force, by fastening pad（12）, cylinder end clamping fixed screw（13）It is mounted in
Transmission ring（11）, and use cylinder end clamping fixed screw（13）By transmission ring（11）It is fastened on axle sleeve.When pumped (conveying) medium flows to filler
In hole, due to stuffing hole and gland（2）Between have gland ring（1）Sealing, gland（2）With floating ring（6）Between have floating
Sealing ring（5）Sealing, pumped (conveying) medium can only be from floating ring（6）Floating ring is flowed between endoporus and axle sleeve（6）With rotating ring（8）It
Between, it is touched seal face sealing, it is impossible to it is excessive, and rotating ring（8）There is rotating ring sealing ring between axle sleeve（9）Sealing, float
Rotating ring（6）Seal face and rotating ring（8）Predetermined seal pressure is the spring by compressing between seal face（7）Produce reaction
The collective effect of power and sealed medium pressure is got off completion.After predetermined seal pressure is reached, floating ring（6）With rotating ring
（8）It is engaged abrasive end face tightly to contact, in axle（Axle sleeve）Rotate and can prevent sealed medium from floating ring when static（6）
With rotating ring（8）Friction sealed end face in leak, so have the function that centrifugal multistage pump multiple centrifugal pump sealing gland seal.
Traditional chemical centrifugal pump can only convey the medium that physical property is similar to water（There is no impurity and particle）, due to close
Seal structure is unreasonable, is easily blocked because medium solid content is high, and easily because wear and corrosion caused by leak.
The content of the invention
In order to solve the above technical problems, the present invention proposes a kind of anticorrosive anti-wear chemical centrifugal pump.According to the of the present invention
On the one hand, anticorrosive anti-wear chemical centrifugal pump of the present invention includes the pump housing, impeller nut, impeller, pump cover, mechanical seal group,
Seal box, axle sleeve, bracket, bearing gland, bearing and axle and suspension strut；The pump housing and suspension strut are connected by bolt and base
Connect；The pump housing is bolted on bracket, and mechanical seal group includes mechanical sealing linkage ring and mechanical sealing static ring, wherein machinery
Moving sealing ring is arranged on impeller, and pump cover is co-located on pump shaft with seal box, mechanical seal group, wherein pump cover and seal box
It is bolted together；Mechanical sealing static ring, stationary seat and spring are arranged between pump cover and seal box；Axle sleeve is enclosed on axle
On, bearing gland is bolted on bracket；Axle is detachably connected with bracket.
According to the second aspect of the invention, anticorrosive anti-wear chemical centrifugal pump of the present invention also includes water cooling system,
The water cooling system includes cooling water nozzle and the cooling water pipeline being connected with cooling water nozzle.
According to the third aspect of the invention we, anticorrosive anti-wear chemical centrifugal pump of the present invention is single-stage single-suction horizontal centrifugation
Pump.
According to the fourth aspect of the invention, the bore of anticorrosive anti-wear chemical centrifugal pump of the present invention is 25-500mm.
According to the fifth aspect of the invention, the flow of anticorrosive anti-wear chemical centrifugal pump of the present invention is 1.6m3/h-
3000m3/h。
According to the sixth aspect of the invention, the flow passage components material of anticorrosive anti-wear chemical centrifugal pump of the present invention is double
Phase stainless steel.
According to the seventh aspect of the invention, the Applicable temperature of anticorrosive anti-wear chemical centrifugal pump of the present invention is -20 DEG C
To between+150 DEG C.
According to the eighth aspect of the invention, the Applicable media of anticorrosive anti-wear chemical centrifugal pump of the present invention is solid content
Acid, alkali and/or the salt of any concentration less than or equal to 40%, media particle are hard and/or soft.
According to the ninth aspect of the invention, the Applicable media of anticorrosive anti-wear chemical centrifugal pump of the present invention is lime white
Liquid, slurry liquid, cinder liquid, slag liquid, spent acid and/or sewage.
According to the tenth aspect of the invention, the installation method of anticorrosive anti-wear chemical centrifugal pump of the present invention, including with
Lower step：
A, check whether net positive suction head during pump work exceedes the highest net positive suction head of its permission；If be no more than, continue following
Step；If it does, then stop installation；
B, the inlet of pump and liquid outlet set individually support；
C, using the basic plane of base water mud fabrication and installation pump, after theing cement solidifies, pump is placed on basic plane, uses water
Level checks whether pump and motor shaft are horizontal；If unhorizontal, aligned with parallels, untill level；Then used by grout hole
Cement fills base and foundation bolt eyelet；
D, after cement is solid, check whether base and foundation bolt eye loosen, if do not loosened, tighten foundation bolt, reexamine
Levelness；The concentricity of pump shaft and motor shaft is checked, measures the cylindrical of shaft coupling, difference up and down is less than or equal to 0.1mm,
Two coupling end-face gaps difference gap minimum and maximum on one week is no more than 0.3mm；
E, when the installation site of pump is higher than liquid level, bottom valve is loaded onto in feed tube bottom, liquid filling screw or valve are set on drain pipe
Door, used for filling pump before startup；When the installation site of pump is less than liquid level, cartridge control valve door and filtering dress on the feed tube of pump
Put, avoid in big debris suction pump.
The part well known in the art or work being related in the installation method of anticorrosive anti-wear chemical centrifugal pump of the present invention
Skill step, such as the structure of shaft coupling, the structure of bottom valve, the structure of the structure of control valve and filter, due to these
The structure of part belongs to the common knowledge of this area, and those skilled in the art of skilled general knowledge can be from existing skill
Know in art, therefore excessive description no longer is done to these known technologies in this manual.
According to anticorrosive anti-wear chemical centrifugal pump of the present invention, need to check before activation in pump bearing either with or without filling it up with
Lithium saponify, if not provided, needing to fill it up with lithium saponify from grease nipple to pump bearing.Then whether just motor rotation direction is checked
Really, empty, reversion is forbidden.With hand rotating joint, check whether feeling relaxed and weight is uniform, and pay attention to distinguishing whetheing there is in pump and rub
Wiping sound, if any should try to exclude, and coupler protective casing is installed.If medium temperature is more than 60 DEG C, it is necessary in pump
Cooling water is connected on cooling water nozzle, cooling water plays a part of thermal insulation and cooling, and cooling water should not be too big and too anxious.Above step
After ready, the valve on feed tube is opened, the valve closed on drain pipe.Start motor, open liquid outlet pressure gauge,
Slowly open the valve on drain pipe, regulation to the operating mode needed.Pump should not under less than 30% design discharge longtime running, such as
Fruit must use under this condition, should install bypass pipe on drain pipe road, by-passing valve is set on bypass pipe, adjust the stream of pump
Amount, makes the flow of pump reach defined use range.In use, the bearing of pump and the temperature rise feelings of motor bearings should be checked
Condition, bearing temperature rise are not to be exceeded 75 DEG C.Absolutely not allow to adjust flow with the valve on feed tube, to avoid cavitation erosion.
In operation process, if it find that have abnormal sound or other failures, should parking checking immediately, pending fault exclude completely after
It can remain in operation.
According to anticorrosive anti-wear chemical centrifugal pump of the present invention, when parking, answer on slowly closing drain pipe
Valve, if the installation site of pump is less than liquid level, the valve that also close on feed tube, and close various instrument.Close power supply,
If pump is connected to cooling water, cooling water should can be closed after pump stops completely.If environment temperature is less than freezing point, need
The liquid in net pump is put, with frost-cracking-preventing.If pump is stopped using for a long time, the liquid in by pump put it is net in addition to, also use
Clear water is rinsed well.Especially closed chamber will be cleaned up conscientiously.Preferably pump is taken apart and reinstalled after cleaning up, is properly protected
Pipe.
According to anticorrosive anti-wear chemical centrifugal pump of the present invention, there is applied widely, sealing life length, abrasion-proof corrosion-proof
The advantages that without blocking, can be hard suitable for the medium of the acid of any concentration of the solid content less than or equal to 40%, alkali and/or salt, particle
Matter or soft degree are unlimited.
Brief description of the drawings
Fig. 1 is the overall schematic of anticorrosive anti-wear chemical centrifugal pump described herein.
Embodiment
As shown in figure 1, anticorrosive anti-wear chemical centrifugal pump of the present invention includes the pump housing 1, impeller nut 2, impeller 3, pump
Lid 4, mechanical seal group 5, seal box 6, axle sleeve 7, bracket 8, bearing gland 9, bearing 10 and pump shaft 11 and suspension strut；The pump housing
1 and suspension strut be connected by bolt with base；The pump housing 1 is bolted on bracket 8, and mechanical seal group 5 includes machinery
Moving sealing ring and mechanical sealing static ring, wherein mechanical sealing linkage ring are arranged on impeller, pump cover 4 and seal box 6, mechanical seal group
5 are co-located on pump shaft 11, together with wherein pump cover 4 is bolted with seal box 6；Mechanical sealing static ring, stationary seat
And spring is arranged between pump cover 4 and seal box 6；Axle sleeve 7 is enclosed on axle 11, and bearing gland 9 is bolted in bracket 8
On；Axle 11 and bracket 8 are detachably connected.
Described anticorrosive anti-wear chemical centrifugal pump also includes water cooling system, the water cooling system include cooling water nozzle and with
The cooling water pipeline of cooling water nozzle connection（It is not shown）.If medium temperature is more than 60 DEG C, it is necessary to is connect on the cooling water nozzle of pump
Upper cooling water, cooling water play a part of thermal insulation and cooling, and cooling water should not be too big and too anxious.
Described anticorrosive anti-wear chemical centrifugal pump is single absorption horizontal centrifugal pump, bore 25-500mm, and flow is
1.6m3/h-3000m3/h。
The flow passage components material of described anticorrosive anti-wear chemical centrifugal pump is two phase stainless steel.
Between the Applicable temperature of described anticorrosive anti-wear chemical centrifugal pump is -20 DEG C to+150 DEG C.
The Applicable media of described anticorrosive anti-wear chemical centrifugal pump be solid content less than or equal to 40% any concentration acid,
Alkali and/or salt, media particle are hard and/or soft.
The Applicable media of described anticorrosive anti-wear chemical centrifugal pump is lime slurry, slurry liquid, cinder liquid, slag liquid, useless
Acid and/or sewage.
Whether the installation of pump is reasonable, and the normal operation and service life to pump have important influence.For institute of the present invention
The anticorrosive anti-wear chemical centrifugal pump stated, due to its mechanical seal be applied to resistance to particle operating mode, and mechanical seal be have it is high
The mechanical part of precision, it is ensured that good sealing effectiveness is, it is necessary to which the installation method provided in strict accordance with the application is installed
And use.
The installation method of described anticorrosive anti-wear chemical centrifugal pump comprises the following steps：
A, check whether net positive suction head during pump work exceedes the highest net positive suction head of its permission；If be no more than, continue following
Step；If it does, then stop installation；
B, the inlet of pump and liquid outlet set individually support；
C, using the basic plane of base water mud fabrication and installation pump, after theing cement solidifies, pump is placed on basic plane, uses water
Level checks whether pump and motor shaft are horizontal；If unhorizontal, aligned with parallels, untill level；Then used by grout hole
Cement fills base and foundation bolt eyelet；
D, after cement is solid, check whether base and foundation bolt eye loosen, if do not loosened, tighten foundation bolt, reexamine
Levelness；The concentricity of pump shaft and motor shaft is checked, measures the cylindrical of shaft coupling, difference up and down is less than or equal to 0.1mm,
Two coupling end-face gaps difference gap minimum and maximum on one week is no more than 0.3mm；
E, when the installation site of pump is higher than liquid level, bottom valve is loaded onto in feed tube bottom, liquid filling screw or valve are set on drain pipe
Door, used for filling pump before startup；When the installation site of pump is less than liquid level, cartridge control valve door and filtering dress on the feed tube of pump
Put, avoid in big debris suction pump.
The part well known in the art or work being related in the installation method of anticorrosive anti-wear chemical centrifugal pump of the present invention
Skill step, such as the structure of shaft coupling, the structure of bottom valve, the structure of the structure of control valve and filter, due to these
The structure of part belongs to the common knowledge of this area, and those skilled in the art of skilled general knowledge can be from existing skill
Know in art, therefore excessive description no longer is done to these known technologies in this manual.
According to anticorrosive anti-wear chemical centrifugal pump of the present invention, need to check before activation in pump bearing either with or without filling it up with
Lithium saponify, if not provided, needing to fill it up with lithium saponify from grease nipple to pump bearing.Then whether just motor rotation direction is checked
Really, empty, reversion is forbidden.With hand rotating joint, check whether feeling relaxed and weight is uniform, and pay attention to distinguishing whetheing there is in pump and rub
Wiping sound, if any should try to exclude, and coupler protective casing is installed.If medium temperature is more than 60 DEG C, it is necessary in pump
Cooling water is connected on cooling water nozzle, cooling water plays a part of thermal insulation and cooling, and cooling water should not be too big and too anxious.Above step
After ready, the valve on feed tube is opened, the valve closed on drain pipe.Start motor, open liquid outlet pressure gauge,
Slowly open the valve on drain pipe, regulation to the operating mode needed.Pump should not under less than 30% design discharge longtime running, such as
Fruit must use under this condition, should install bypass pipe on drain pipe road, by-passing valve is set on bypass pipe, adjust the stream of pump
Amount, makes the flow of pump reach defined use range.In use, the bearing of pump and the temperature rise feelings of motor bearings should be checked
Condition, bearing temperature rise are not to be exceeded 75 DEG C.Absolutely not allow to adjust flow with the valve on feed tube, to avoid cavitation erosion.
In operation process, if it find that have abnormal sound or other failures, should parking checking immediately, pending fault exclude completely after
It can remain in operation.
According to anticorrosive anti-wear chemical centrifugal pump of the present invention, when parking, answer on slowly closing drain pipe
Valve, if the installation site of pump is less than liquid level, the valve that also close on feed tube, and close various instrument.Close power supply,
If pump is connected to cooling water, cooling water should can be closed after pump stops completely.If environment temperature is less than freezing point, need
The liquid in net pump is put, with frost-cracking-preventing.If pump is stopped using for a long time, the liquid in by pump put it is net in addition to, also use
Clear water is rinsed well.Especially closed chamber will be cleaned up conscientiously.Preferably pump is taken apart and reinstalled after cleaning up, is properly protected
Pipe.
The structure and installation method of the present invention is illustrated and explained by reference to exemplary process figure.Based on above
Description, additional variants and modifications are it will be apparent that each falling within the protection of the application for those of ordinary skills
Within the scope of, and protection scope of the present invention is determined by appended claim.
Claims (10)
1. a kind of anticorrosive anti-wear chemical centrifugal pump, it is characterised in that including the pump housing, impeller nut, impeller, pump cover, mechanical seal
Group, seal box, axle sleeve, bracket, bearing gland, bearing and axle and suspension strut；The pump housing and suspension strut pass through bolt and bottom
Seat connection；The pump housing is bolted on bracket, and mechanical seal group includes mechanical sealing linkage ring and mechanical sealing static ring, wherein
Mechanical sealing linkage ring is arranged on impeller, and pump cover and seal box, mechanical seal group are co-located on pump shaft, wherein pump cover with it is close
Joint sealing is bolted together；Mechanical sealing static ring, stationary seat and spring are arranged between pump cover and seal box；Axle sleeve set
On axle, bearing gland is bolted on bracket；Axle is detachably connected with bracket.
2. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 1, it is characterised in that also including water cooling system, the water cooling
But system includes cooling water nozzle and the cooling water pipeline being connected with cooling water nozzle.
3. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 2, it is characterised in that the anticorrosive anti-wear chemical centrifugal pump is single
Level single suction centrifugal pump of horizontal axis.
4. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 3, it is characterised in that the mouth of the anticorrosive anti-wear chemical centrifugal pump
Footpath is 25-500mm.
5. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 4, it is characterised in that the stream of the anticorrosive anti-wear chemical centrifugal pump
Measure as 1.6m3/h-3000m3/h.
6. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 5, it is characterised in that the mistake of the anticorrosive anti-wear chemical centrifugal pump
Stream unit material is two phase stainless steel.
7. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 6, it is characterised in that described anticorrosive anti-wear chemical centrifugal pump
Applicable temperature be -20 DEG C to+150 DEG C between.
8. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 7, it is characterised in that described anticorrosive anti-wear chemical centrifugal pump
Applicable media be acid, alkali and/or the salt of any concentration of the solid content less than or equal to 40%, media particle is hard and/or soft
Matter.
9. anticorrosive anti-wear chemical centrifugal pump as claimed in claim 1, it is characterised in that described anticorrosive anti-wear chemical centrifugal pump
Applicable media be lime slurry, slurry liquid, cinder liquid, slag liquid, spent acid and/or sewage.
10. the installation method of the anticorrosive anti-wear chemical centrifugal pump as described in claim any one of 1-9, it is characterised in that including
Following steps：
A, check whether net positive suction head during pump work exceedes the highest net positive suction head of its permission；If be no more than, continue following
Step；If it does, then stop installation；
B, the inlet of pump and liquid outlet set individually support；
C, using the basic plane of base water mud fabrication and installation pump, after theing cement solidifies, pump is placed on basic plane, uses water
Level checks whether pump and motor shaft are horizontal；If unhorizontal, aligned with parallels, untill level；Then used by grout hole
Cement fills base and foundation bolt eyelet；
D, after cement is solid, check whether base and foundation bolt eye loosen, if do not loosened, tighten foundation bolt, reexamine
Levelness；The concentricity of pump shaft and motor shaft is checked, measures the cylindrical of shaft coupling, difference up and down is less than or equal to 0.1mm,
Two coupling end-face gaps difference gap minimum and maximum on one week is no more than 0.3mm；
E, when the installation site of pump is higher than liquid level, bottom valve is loaded onto in feed tube bottom, liquid filling screw or valve are set on drain pipe
Door, used for filling pump before startup；When the installation site of pump is less than liquid level, cartridge control valve door and filtering dress on the feed tube of pump
Put, avoid in big debris suction pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710987712.0A CN107524605A (en) | 2017-10-21 | 2017-10-21 | A kind of anticorrosive anti-wear chemical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710987712.0A CN107524605A (en) | 2017-10-21 | 2017-10-21 | A kind of anticorrosive anti-wear chemical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107524605A true CN107524605A (en) | 2017-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710987712.0A Withdrawn CN107524605A (en) | 2017-10-21 | 2017-10-21 | A kind of anticorrosive anti-wear chemical centrifugal pump |
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| CN (1) | CN107524605A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839335A (en) * | 2023-02-15 | 2023-03-24 | 四川省机械研究设计院(集团)有限公司 | Test bench and test method for water pump |
-
2017
- 2017-10-21 CN CN201710987712.0A patent/CN107524605A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839335A (en) * | 2023-02-15 | 2023-03-24 | 四川省机械研究设计院(集团)有限公司 | Test bench and test method for water pump |
| CN115839335B (en) * | 2023-02-15 | 2023-05-26 | 四川省机械研究设计院(集团)有限公司 | Water pump test bench and test method |
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Application publication date: 20171229 |