CN207795693U - A kind of certainly cooling centrifugal pump - Google Patents
A kind of certainly cooling centrifugal pump Download PDFInfo
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- CN207795693U CN207795693U CN201721684205.1U CN201721684205U CN207795693U CN 207795693 U CN207795693 U CN 207795693U CN 201721684205 U CN201721684205 U CN 201721684205U CN 207795693 U CN207795693 U CN 207795693U
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Abstract
The utility model provides a kind of from cooling centrifugal pump, it includes the pump housing, pump cover, centrifugal impeller, integrated bearing case, pump shaft, pump housing gland, degasser and control system, integrated bearing case, pump cover and the pump housing are sequentially connected by bolt and compress to form suction chamber, devolatilizing chamber and pump chamber, pump shaft is installed in integrated bearing case, centrifugal impeller is mounted on pump shaft and is set in pump chamber, and pump housing gland is mounted on the pump housing；Degassing interface is provided on integrated bearing case, equipped with degassing solenoid valve on degassing interface, degassing solenoid valve is connect with degasser, control system is equipped with control solenoid valve, water inlet detection probe, pressure detecting probe, temperature measuring probe, vibration detection probe and PLC programmable controller, control solenoid valve, water inlet detection probe, pressure detecting probe, temperature measuring probe and vibration detection probe and degasser are electrically connected with PLC programmable controller, and PLC programmable controller is electrically connected with external drive equipment.
Description
Technical field
The utility model is related to centrifuge pump technical field more particularly to a kind of certainly cooling centrifugal pump.
Background technology
In existing centrifugal pump, the type of cooling of either horizontal mounting structure or vertical mounting structure, bearing is all two
Kind pattern：One kind is air-cooled structure pattern, and another kind is water-cooling structure pattern.Air-cooled structure is divided into natural air cooled and air blast cooling
It is two kinds, affected by the ambient temperature when due to using air-cooled pattern, so when bearing cooling effect is bad, then use water cooling
Structural shape.Water-cooling structure pattern, which is divided into external coolant liquid and itself pumps medium using pump, cools down two kinds, two kinds of cooling structures
It is required for that cooling chamber is arranged on bearing housing.Wherein, need in addition increase when external coolant liquid mode tap water, industrial water or
Other coolant liquids are cooled down, waste of resource and not environmentally；And when itself pumping the medium type of cooling using pump, it needs in pump
Outlet is that medium is drained into bearing housing cooling chamber at maximum pressure to cool down, and medium flow back into the entrance of pump after cooling chamber
I.e. at minimum pressure.This mode can be influenced by pump discharge pressure, i.e., when the rated pressure that pump generates is high, cooling chamber institute
The pressure medium born is just high；When the operating condition pressure change of pump, the pressure that cooling chamber is born also changes；When pump operation exists
When working condition pressure highest pumps closing outlet valve, the pressure that cooling chamber is born is also with regard to highest.So itself pumping Jie using pump
There are security risks for the mode of matter cooling, abnormally dangerous.
In addition, in existing centrifugal pump, water pump body is all not provided with degassing priming device, and when pump startup must carry out it
It pours water；Pump in the process of running, when the device net positive suction head of pipe-line system is inadequate, is not provided with degasser, then due to pumping
Cavitation is will produce, being seriously pump cannot work, and influence application scenario and the service life of pump.And in the existing centrifugal pump of pump, all singly
It solely is provided with inlet segment and bearing housing, the steering size of water pump is big, and volume is big, and quality is big, so the application of pump receives greatly
Limitation.
Utility model content
The purpose of the utility model is to overcome shortcoming and deficiency in the prior art, provide a kind of automatic deaerating diversion,
Certainly cooling centrifugal pump safe to use.
To achieve the goals above, the utility model provides a kind of from cooling centrifugal pump comprising the pump housing, pump cover, from
Lobus cardiacus wheel, integrated bearing case, pump shaft, pump housing gland, degasser and control system, the integrated bearing case, the pump
Lid and the pump housing are sequentially connected by bolt and compress to form suction chamber, devolatilizing chamber and pump chamber, and the pump shaft is installed on described
In integrated bearing case, the centrifugal impeller is mounted on the pump shaft and is set in the pump chamber, the pump housing gland peace
On the pump housing；It is provided with degassing interface on the integrated bearing case, degassing solenoid valve is equipped on the degassing interface, it is described
Degassing solenoid valve is connect with the degasser, and the control system is equipped with control solenoid valve, water inlet detection probe, first pressure
Detection probe, second pressure detection probe, temperature measuring probe, vibration detection probe and PLC programmable controller, the control
Solenoid valve, the water inlet detection probe, first pressure detection probe, second pressure detection probe, temperature measuring probe and vibration
Detection probe and the degasser are electrically connected with PLC programmable controller, and the PLC programmable controller is set with external drive
Standby electrical connection.
As an improvement of the above technical solution, the certainly cooling centrifugal pump further includes sand control installation, the sand control installation packet
It includes mechanical seal, fluid sealing ring and every sand ring, the integrated bearing case is quiet equipped with fluid sealing ring installation position, mechanical seal
Ring installation position and every sand ring coordinate position；
The fluid sealing ring is mounted in fluid sealing ring installation position and coordinates with the pump shaft, and the machinery is close
The stationary ring of envelope is mounted in the mechanical sealing static ring installation position, the rotating ring of the mechanical seal is mounted on the pump shaft to protect
Card is described to be coordinated with described every sand ring cooperation position every sand ring；
As an improvement of the above technical solution, the certainly cooling centrifugal pump further includes leak hydrops eduction gear, the leakage
Water hydrops eduction gear include be arranged pump shaft periphery throwing liquid bath, be arranged in the integrated bearing case annular groove,
Liquid bath, annular groove and fluid packing ring combination formation fluid collection chamber, the row are thrown in drainage hole, drain interface, the mechanical seal
Fluid apertures is connected to the fluid collection chamber and drain interface.
As an improvement of the above technical solution, back blade is provided on the centrifugal impeller, the centrifugal impeller passes through axis
Set is fixed on the pump shaft, and sliding bearing, annular groove, bearing installation position and runner end face are provided in the pump housing；It is described
There are axial gap D, wherein 0.5mm≤D≤1.0mm, the back blade, axle sleeve, stream in the end face of back blade with the runner end face
Road end face, sliding bearing, annular groove form back cavity after being combined with each other.
As an improvement of the above technical solution, gland installation position, return port and pressure relief vent, institute are additionally provided in the pump housing
Pressure-releasing cavity is formed after stating axle sleeve, sliding bearing, return port, pressure relief vent, gland installation position, the intercombination of pump housing gland.
As an improvement of the above technical solution, the control system includes sediment outflow and residual axial force balance system, described
Pressure relief vent, liquid storage cylinder and first pressure detection probe, the first pressure detection probe installation are provided on integrated bearing case
It is connected to by return duct on the pressure relief vent and with the solenoid valve, the return duct is connect by threeway with the return port
It is connected to afterwards and with the liquid storage cylinder, the first pressure detection probe, solenoid valve are electrically connected with PLC programmable controller as a result,
And form sediment outflow and residual axial force balance system with pressure-releasing cavity.
The control system further includes automatic deaerating diversion system, and inlet, storage are provided on the integrated bearing case
Sap cavity and the second pressure detection probe, the devolatilizing chamber and the degassing orifice, the liquid storage cylinder and devolatilizing chamber it
Between be provided with gas vent, the liquid storage cylinder is connected to inlet, and the suction chamber is connected to the liquid storage cylinder and the pump chamber, by
This, the second pressure detection probe, degasser are electrically connected composition automatic deaerating diversion system with PLC programmable controller.
As an improvement of the above technical solution, the control system further includes grease chamber water ingress detection system, the integral type
The water inlet detection hole for being provided with grease chamber on bearing housing and being connected to the grease chamber, the water inlet detection probe are installed on described
In detection hole of intaking, the water inlet detection probe is electrically connected composition grease chamber water inlet detection with the PLC programmable controller as a result,
System.
As an improvement of the above technical solution, the control system further includes system for detecting temperature, and the temperature detection is visited
Head be set as multiple, multiple temperature measuring probes be respectively arranged on the pump housing and the integrated bearing case in, as a result,
Multiple temperature measuring probes are electrically connected composition system for detecting temperature with PLC programmable controller.
As an improvement of the above technical solution, the control system further includes vibration detecting system, and the vibration detection is visited
Head is set as multiple, multiple vibration detections probes be respectively arranged on the pump housing and the integrated bearing case in, it is multiple
Vibration detection probe is electrically connected composition vibration detecting system with PLC programmable controller.
A kind of certainly cooling centrifugal pump provided by the utility model has the advantages that compared with prior art：
1, the utility model can make the bearing of centrifugal pump, mechanical seal in the case where not needing external coolant liquid
Automatic cooling, centrifugal pump has the function of automatic deaerating diversion, leak hydrops excretory function, grease chamber water inlet detection function, sand control row
Sand function, residual axial force equilibrium function and temperature, vibration detection function；Since the utility model is ingenious in design, shorten from
The whole axial length of heart pump reduces the volume and weight of pump, and mechanical seal is solely subjected to suction pressure, reduces manufacture, peace
Dress and maintenance cost；It is provided with sliding bearing in the utility model to the aiding support of pump shaft, the running speed of water pump can be made to reach
To 6000r/mi n；Due to its special design, from cooling centrifugal pump can be used for pumping cleaning liquid, the liquid of slag inclusion containing sand,
Fibre-bearing liquid and gas liquid mixture.
2, the control system of the water pump set by certainly cooling centrifugal pump provided by the utility model can clearly display
Water outlet pump operating condition can also directly be diagnosed to be the specific location of fault of water pump, facilitate the repair of water pump, be greatly improved dimension
Efficiency is repaiied, maintenance cost is reduced.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing of embodiment will be made below simple
Ground introduction.
Fig. 1 is a kind of structural schematic diagram from cooling centrifugal pump that the utility model embodiment provides；
The structural schematic diagram for the pump housing that Fig. 2 the utility model embodiments provide；
The structural schematic diagram for the integrated bearing case that Fig. 3 the utility model embodiments provide；
The enlarged drawing of fluid collection chamber in Fig. 1 that Fig. 4 the utility model embodiments provide；
The structural schematic diagram for the pump cover that Fig. 5 the utility model embodiments provide.
Wherein, the 1- pump housings；2- pump covers；3- integrated bearing casees；4- centrifugal impellers；5- pump shafts；6- pump housing glands；7- axis
Set；8- mechanical seals；9- fluid sealing rings；10- inlets；11- liquid outlets；12- controls solenoid valve；13- return ducts；14- tri-
It is logical；15- first pressure detection probes；16- second pressure detection probes；17- temperature measuring probes；18- water inlet detection probes；
19- vibration detections are popped one's head in；20-O type circles；21- back blades；22- devolatilizing chambers；23- degassing interfaces；24- fluid collection chambers；25- drains connect
Mouthful；26- pressure-releasing cavities；27- liquid storage cylinders；28- grease chambers；29- pump chambers；30- suction chambers；31- gas vents；32- back cavities；33- deaerates
Solenoid valve；34- annular grooves；35- runners end face；36- return ports；37- radiating ribs；38- first flow arcs；39- second flow channels
Arc；40- pressure relief vents；41- coordinates position every sand ring；42- mechanical sealing static rings installation position；43- annular grooves；44- fluid seals
Ring installation position；45- fuisw ribs；46- is every sand ring；47- throws liquid bath；D- axial gaps.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to shown in Fig. 1-5, the utility model provides a kind of from cooling centrifugal pump comprising the pump housing 1, pump cover 2, centrifugation
Impeller 4, integrated bearing case 3, pump shaft 5, pump housing gland 6, degasser (not shown) and control system, the integral type
Bearing housing 3, the pump cover 2 and the pump housing 1 are sequentially connected by bolt and compress to form suction chamber 30, devolatilizing chamber 22 and pump chamber
29, the pump shaft 5 is installed in the integrated bearing case 3, and the centrifugal impeller 4 is mounted on the pump shaft 5 and is set to
In the pump chamber 29, the pump housing gland 6 is mounted on the pump housing 1；Degassing interface 23 is provided on the integrated bearing case 3,
It is connect with the degasser equipped with degassing solenoid valve 33, the degassing solenoid valve 33 on the degassing interface 23, the control
System is equipped with control solenoid valve 12, water inlet detection probe 18, first pressure detection probe 15, second pressure detection probe 16, temperature
Spend detection probe 17, vibration detection probe 19 and PLC programmable controller (not shown), the control solenoid valve 12, institute
It states into water detection probe 18, first pressure detection probe 15, second pressure detection probe 16, temperature measuring probe 17 and vibration inspection
Probing head 19 and the degasser are electrically connected with PLC programmable controller, and the PLC programmable controller is set with external drive
Standby electrical connection.
More preferably, in the present embodiment, the certainly cooling centrifugal pump further includes sand control installation, and the sand control installation includes machine
Tool seals 8, fluid sealing ring 9 and every sand ring 46, and the integrated bearing case 3 is close equipped with fluid sealing ring installation position 44, machinery
It seals stationary ring installation position 42 and coordinates position 41 every sand ring；The fluid sealing ring 9 is mounted in fluid sealing ring installation position 44
And coordinate with the pump shaft 5, the stationary ring of the mechanical seal 8 is in the mechanical sealing static ring installation position 42, the machine
The rotating ring of tool sealing 8, which is mounted on the pump shaft 5, to be coordinated with described every sand ring cooperation position 41 so that guarantee is described every sand ring 46；Pass through
Coordinate the cooperation of position 41 every sand ring 46 and every sand ring so that there should be sand-proof function from cooling centrifugal pump, and contain so as to pump
The liquid such as sand slag inclusion, fibre-bearing.
More preferably, in the present embodiment, the certainly cooling centrifugal pump further includes leak hydrops eduction gear, the leak product
Liquid eduction gear include be arranged the periphery of pump shaft 5 throwing liquid bath 47, the annular groove that is arranged in the integrated bearing case 3
43, liquid bath 47, annular groove 43 and the combination formation product of fluid sealing ring 9 are thrown in drainage hole, drain interface 25, the mechanical seal 8
Sap cavity 24, the drainage hole are connected to the fluid collection chamber 24 and drain interface 25.The setting of fluid collection chamber 24 makes this be centrifuged from cooling
Pump has the function of the excretion of leak hydrops, increases the service life from cooling centrifugal pump.
More preferably, in the present embodiment, back blade 21 is provided on the centrifugal impeller 4, the centrifugal impeller 4 passes through axis
Set 7 is fixed on the pump shaft 5, and sliding bearing, annular groove 34, bearing installation position and runner end face are provided in the pump housing 1
35；There are axial gap D, wherein 0.5mm≤D≤1.0mm, the notopodium in the end face of the back blade 21 with the runner end face 35
Piece 21, axle sleeve 7, runner end face 35, sliding bearing, annular groove 34 form back cavity 32 after being combined with each other.It is also set in the pump housing 1
It is equipped with gland installation position, return port 36 and pressure relief vent 40, the axle sleeve 7, sliding bearing, return port 36, pressure relief vent 40, gland peace
Pressure-releasing cavity 26 is formed after filling position, the intercombination of pump housing gland 6.Specifically, pump cover 2 is matched after passing through pump shaft 5 with integrated bearing case 3
It closes, flat key is mounted on above pump shaft 5, centrifugal impeller 4 is inserted in after pump shaft 5 by safety above pump shaft 5, and axle sleeve 7 is installed
On pump shaft 5, two pieces round nut is mounted on pump shaft 5 and is pressed abd fixed on pump shaft 5 above and by axle sleeve 7, centrifugal impeller 4；It is sliding
Dynamic bearing is mounted in the bearing installation position being arranged in the pump housing 1, is fixed sliding bearing and the pump housing 1 with holding screw, O-shaped
Circle 20 is placed in 20 installation position of O-ring being arranged in the pump housing 1；The pump housing 1 is passed through into round nut, axle sleeve 7, centrifugal impeller 4, pump cover 2
Coordinate afterwards with integrated bearing case 3, adjusts the end face for the notopodium being arranged on centrifugal impeller 4 and the runner end being arranged in the pump housing 1
Axial gap D between face 35 ensures size range 0.5mm~1.0mm of axial gap D, with bolt by the pump housing 1 and integrally
After formula bearing housing 3 connects and pump cover 2 is compressed, disk moves at least rotation of pump shaft 5 and takes two turns；O-ring 20 is placed on the O being arranged in the pump housing 1
In 20 installation position of type circle, pump housing gland 6 is mounted in the gland installation position being arranged in the pump housing 1, is pressed pump housing gland 6 with bolt
Tightly and it is fixed on the pump housing 1；Integrated bearing case 3 and pump cover 2 form suction chamber 30 and devolatilizing chamber 22, pump cover 2 and pump after coordinating
Body 1 forms pump chamber 29 after coordinating；The annular groove 34 being arranged in back blade 21, runner end face 35, axle sleeve 7, sliding bearing and the pump housing 1
Back cavity 32 is formed after intercombination；Return port 36, the pressure relief vent being arranged in pump housing gland 6, axle sleeve 7, sliding bearing and the pump housing 1
40, pressure-releasing cavity 26 is formed after gland installation position is combined with each other.
More preferably, in the present embodiment, the control system includes sediment outflow and residual axial force balance system, the one
Pressure relief vent 40, liquid storage cylinder 27 and first pressure detection probe 15, the first pressure detection probe 15 are provided on formula bearing housing 3
It is installed on the pressure relief vent 40 and is connected to by return duct 13 with the control solenoid valve 12, the return duct 13 passes through threeway
Be connected to after 14 connect with the return port and with the liquid storage cylinder 27, as a result, the first pressure detection probe 15, solenoid valve with
PLC programmable controller is electrically connected and forms sediment outflow and residual axial force balance system with pressure-releasing cavity 26.
More preferably, in the present embodiment, the control system further includes automatic deaerating diversion system, the integrated bearing
Liquid storage cylinder 27 and inlet 10 are provided on case 3, the second pressure detection probe 16 is installed on the integrated bearing case 3
On, the devolatilizing chamber 22 is connected to the degassing interface 23, and gas vent 31 is provided between the liquid storage cylinder 27 and devolatilizing chamber 22,
The liquid storage cylinder 27 is connected to inlet 10, and the suction chamber 30 is connected to the liquid storage cylinder 27 and the pump chamber 29, described as a result,
Second pressure detection probe 16, degasser are electrically connected composition automatic deaerating diversion system with PLC programmable controller.
More preferably, in the present embodiment, the control system further includes grease chamber water ingress detection system, the integrated bearing
The water inlet detection hole for being provided with grease chamber 28 on case 3 and being connected to the grease chamber 28, the water inlet detection probe 18 are installed on
In the water inlet detection hole, the water inlet detection probe 18 is electrically connected composition grease chamber 28 with the PLC programmable controller as a result,
Water ingress detection system.
More preferably, in the present embodiment, the control system further includes system for detecting temperature, the temperature measuring probe 17
Be set as multiple, multiple temperature measuring probes 17 be respectively arranged on the pump housing 1 and the integrated bearing case 3 in, by
This, multiple temperature measuring probes 17 are electrically connected composition system for detecting temperature with PLC programmable controller.
More preferably, in the present embodiment, the control system further includes vibration detecting system, the vibration detection probe 19
Be set as multiple, multiple vibration detections probes 19 be respectively arranged on the pump housing 1 and the integrated bearing case 3 in, it is more
A vibration detection probe 19 is electrically connected composition vibration detecting system with PLC programmable controller.
Certainly the course of work of the cooling centrifugal pump is as follows：From cooling centrifugal pump when negative pressure absorbs water operating mode applications, PLC
Programmable controller sends out instruction, and degassing solenoid valve 33 is opened, degasser operation, is de-gassed and draws from cooling centrifugal pump to this
Water.When second pressure detection probe 16 detects that the fluid pressure of liquid storage cylinder 27 is setting value, degassing solenoid valve 33 is closed, and is taken off
Device of air is out of service, at this moment from liquid storage cylinder 27, suction chamber 30, devolatilizing chamber 22, pump chamber 29, the back cavity in cooling centrifugal pump
32, liquid is filled in pressure-releasing cavity 26, liquid surrounds the grease chamber 28 of integrated bearing case 3, draws automatically before the startup operation of pump
Water process is completed.When from cooling centrifugal pump in positive pressure water suction operating mode applications, then this process is not needed.Start from it is cooling from
Heart pump, PLC programmable controller send out instruction, and control solenoid valve 12 is opened, and is run to setting opening time, is controlled solenoid valve 12
It closes, completes from the automatic sand washing in cooling centrifugal pump pressure-releasing cavity 26, sediment outflow process.This is to enter normal work from cooling centrifugal pump
Start-up course when condition is run；
From cooling centrifugal pump operating mode operation, pump medium successively by inlet 10 flow by liquid storage cylinder 27, suction chamber 30,
The liquid outlet 11 being equipped with from the pump housing 1 after centrifugal impeller 4 and pump chamber 29 flows out.Liquid is external high through back blade 21 by pump chamber 29
Pressure area flows into pressure-releasing cavity 26 after entering return port 36, then flows into back cavity 32 from pressure-releasing cavity 26 by sliding bearing, axle sleeve 7,
Under the centrifugation force effect of back blade 21, liquid is flowed into return port 36 after back blade 21 by back cavity 32 and recycled successively again, right
Sliding bearing is lubricated, rinses and is balanced to the axial force of centrifugal impeller 4；
It changes, that is, pumps when being run under low flow rate condition, due to centrifuging leaf when from the operating condition of cooling centrifugal pump
The hypertonia that wheel 4 generates, the balancing device at this moment pumped are unable to complete equipilibrium and fall axial force, that is, will produce residual axial force.This
When residual axial force is excessive, destruction can be generated to thrust bearing, that is, double-row angular contact bal bearing of water pump.At this moment in pressure-releasing cavity 26
First pressure detection probe 15 detect high pressure, PLC programmable controller sends out instruction, and control solenoid valve 12 is opened, release
Highly pressurised liquid in chamber 26 flows back to the low-pressure area of liquid storage cylinder 27 by return duct 13, threeway, is visited when running to first pressure detection
First 15 detect that control solenoid valve 12 is closed when balancing pressure, from cooling centrifugal pump normal operation.This is from cooling centrifugal pump
Residual axial force autobalance process, this process while, also have to automatic sand washing, the sediment outflow effect in pressure-releasing cavity 26；
It changes, that is, pumps when being run under big flow operating mode, or work as pipeline system when from the operating condition of cooling centrifugal pump
When the device net positive suction head of system is inadequate, water pump, which will produce cavitation, influences suction, and being seriously pump cannot work, and influence the applied field of pump
Conjunction and service life.When cavitation occurs from cooling centrifugal pump, since the flow rate of liquid in liquid storage cylinder 27 and suction chamber 30 is too fast
Or the generation of cavitation steam bubble, when at this time second pressure detection probe 16 detects the fluid pressure setting value of liquid storage cylinder 27,
PLC programmable controller sends out instruction, and degassing solenoid valve 33 is opened, degasser operation, to the liquid storage cylinder from cooling centrifugal pump
27 and suction chamber 30 in carry out operating mode or the operation degassing diversion of non-operating mode of water pump, eliminate the cavitation from cooling centrifugal pump and raising
The suction of water pump.When second pressure detection probe 16 detects that the fluid pressure of liquid storage cylinder 27 is setting value, deaerate solenoid valve
33 close, and degasser is out of service.
From cooling centrifugal pump normal operation, pumps medium and 4 heel row of centrifugal impeller is constantly flowed by liquid storage cylinder 27, suction chamber 30
Go out outside the pump housing 1, the at this moment lubricating oil in integrated bearing case 3, bearing and mechanical seal 8 need not carry out external cooling water to it
It can cool down automatically, temperature is automatically drained out by pumping medium outside water pump.Liquid storage cylinder 27 due to certainly cooling centrifugal pump and sucking
Liquid in room 30 is normal pressure or negative pressure, so the unnecessary machine envelope for selecting to bear high pressure of mechanical seal 8.
When from cooling centrifugal pump operation or shutting down, due to being provided with every sand ring 46 on the rotating ring of mechanical seal 8, so pumping
Sandstone in medium will not enter in mechanical seal 8.Mechanical seal 8 uses after ordinary life or when seal failure, works as centrifugation
When pump is shut down, liquid flows into fluid collection chamber 24 by pump shaft 5, and when centrifuging pump operation, liquid is rotated by pump shaft 5 to be flowed on pump shaft 5
The throwing liquid bath 47 of setting, then fluid collection chamber 24 is thrown by throwing liquid bath 47, the medium of leakage passes through drainage hole and drain by fluid collection chamber 24
Interface 25 is discharged outside water pump, makes have leak hydrops excretory function from cooling centrifugal pump.
From cooling centrifugal pump normal operation, when mechanical seal 8 is entirely ineffective, the amount of liquid of leakage is more than the excretion of drainage hole
When amount, liquid is entered by fluid sealing ring 9 in grease chamber 28.Since the density of liquid is more than the density of lubricating oil, the liquid of leakage
Body, which enters after grease chamber 28, to be deposited on bottom and enters in water inlet detection hole, when detection probe 18 of intaking is detected into water signal, PLC
Programmable controller sends out instruction, out of service from cooling centrifugal pump.
From cooling centrifugal pump normal operation, when the temperature measuring probe 17 on the pump housing 1 and in integrated bearing case 3 detects
To when can be permitted running temperature, system alarm.When detecting the maximum temperature value of default, PLC programmable controllers are sent out
Instruction, it is out of service from cooling centrifugal pump.
From cooling centrifugal pump normal operation, when 19 detection of vibration detection probe on the pump housing 1 and in integrated bearing case 3
To when can be permitted operational shock value, system alarm.When detecting the highest vibration values of default, PLC programmable controller hair
Go out instruction, it is out of service from cooling centrifugal pump.
It should also be noted that, being provided with first flow arc 38 in the pump housing 1；It is provided with second flow channel on pump cover 2
Arc 39, first outlet diameter, the first inlet diameter, fuisw rib 45；Setting second has outlet diameter in integrated bearing case 3；
The second inlet diameter is provided in centrifugal impeller 4；The first flow arc 38 and second flow channel arc 39 be same arc and
Arc radius is equal；First outlet diameter is more than second inlet diameter 1.0mm~2.5mm；First inlet diameter and second outlet
Diameter it is equal sized；The quantity of fuisw rib 45 is 1~3, and is streamlined.
It should also be noted that, being provided with radiating ribs 37, hanging ring hole and liquid outlet on the pump housing 1 from cooling centrifugal pump
11, liquid outlet 11 is connected to pump chamber 29, and the connection type of liquid outlet 11 and exterior line can be fire-fighting groove connection type, spiral shell
The pumping chamber form of line connection type or flange connection, the pump housing 1 can be annular, spiral shape, similar spiral shape；Integral shaft
It holds and is provided with pedestal, water pump mounting hole and inlet 10 on case 3, inlet 10 and the connection type of exterior line can be fire-fighting
Groove connection type, thread connecting mode or flange connection；The form of centrifugal impeller 4 can be open type, semi-open type, close
Formula, blade shape can be twisted blade, cylinder blade, prismatic blade or blade exit part bendable blade, integrated bearing
10 arranged direction of inlet being arranged on case 3 correspond to pump shaft 5 axial direction can be 45 °, 90 °, 135 °, 180 °, 225 °,
270 °, 315 °, 360 ° of rotations, the axial direction that 11 arranged direction of liquid outlet that is arranged corresponds to pump shaft 5 on pump 1 can be 45 °, 90 °,
135 °, 180 °, 225 °, 270 °, 315 °, 360 ° of rotations.
A kind of certainly cooling centrifugal pump provided by the utility model has the advantages that compared with prior art：
1, the utility model can make the bearing of centrifugal pump, mechanical seal 8 can in the case where not needing external coolant liquid
To cool down automatically, centrifugal pump has the function of automatic deaerating diversion, leak hydrops excretory function, the water inlet of grease chamber 28 detection function, prevents
Sand sand discharge function, residual axial force equilibrium function and temperature, vibration detection function；Since the utility model is ingenious in design, shorten
The whole axial length of centrifugal pump, reduces the volume and weight of pump, mechanical seal 8 is solely subjected to suction pressure, reduces system
It makes, install and maintenance cost；It is provided with sliding bearing in the utility model to the aiding support of pump shaft 5, the operation of water pump can be made
Rotating speed reaches 6000r/mi n；Due to its special design, can be used for pumping cleaning liquid, slag inclusion containing sand from cooling centrifugal pump
Liquid, fibre-bearing liquid and gas liquid mixture.2, the control of the water pump set by certainly cooling centrifugal pump provided by the utility model
System processed can clearly show that water pump operation situation, can also directly be diagnosed to be the specific location of fault of water pump, facilitate water
The repair of pump is greatly improved maintenance efficiency, reduces maintenance cost.
In the description of the present invention, it should be understood that the indicating positions such as term "upper", "lower", "left", "right" or
Position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description,
It does not indicate or imply the indicated device or element must have a particular orientation and specifically azimuth configuration and operation,
It is thus impossible to be construed as a limitation of the present invention.In addition, " first ", " second " are merely due to describe purpose, and cannot understand
To indicate or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.Therefore, define " first ",
The feature of " second " can explicitly or implicitly include one or more this feature.In the description of the utility model, unless
It is otherwise noted, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation "
" connected " " connection " etc. shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；It can be directly connected, can also be indirectly connected with by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition
Concrete meaning in the present invention.The above is preferred embodiments of the present invention, it is noted that for this skill
For the those of ordinary skill in art field, under the premise of not departing from principle described in the utility model, several change can also be made
Into and retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of from cooling centrifugal pump, which is characterized in that including the pump housing, pump cover, centrifugal impeller, integrated bearing case, pump shaft, pump
Body gland, degasser and control system, the integrated bearing case, the pump cover and the pump housing are sequentially connected by bolt
And compress and form suction chamber, devolatilizing chamber and pump chamber, the pump shaft is installed in the integrated bearing case, the centrifugal impeller peace
It on the pump shaft and is set in the pump chamber, the pump housing gland is mounted on the pump housing；On the integrated bearing case
It is provided with degassing interface, is connect with the degasser equipped with degassing solenoid valve, the degassing solenoid valve on the degassing interface,
The control system is equipped with control solenoid valve, water inlet detection probe, first pressure detection probe, second pressure detection probe, temperature
Spend detection probe, vibration detection probe and PLC programmable controller, the control solenoid valve, the water inlet detection probe, first
Pressure detecting probe, second pressure detection probe, temperature measuring probe and vibration detection probe and the degasser and PLC can
Programmable controller is electrically connected, and the PLC programmable controller is electrically connected with external drive equipment.
2. according to claim 1 from cooling centrifugal pump, which is characterized in that the certainly cooling centrifugal pump further includes sand control dress
It sets, the sand control installation includes mechanical seal, fluid sealing ring and every sand ring, and the integrated bearing case is equipped with fluid sealing ring
Installation position, mechanical sealing static ring installation position and every sand ring coordinate position；
The fluid sealing ring is mounted in fluid sealing ring installation position and coordinates with the pump shaft, the mechanical seal
Stationary ring is mounted in the mechanical sealing static ring installation position, the rotating ring of the mechanical seal is mounted on the pump shaft to ensure
It states and coordinates every sand ring cooperation position with described every sand ring.
3. according to claim 2 from cooling centrifugal pump, which is characterized in that the certainly cooling centrifugal pump further includes leak product
Liquid eduction gear, the leak hydrops eduction gear include be arranged pump shaft periphery throwing liquid bath, be arranged in the integral shaft
Annular groove, drainage hole, the drain interface in case are held, liquid bath, annular groove and fluid packing ring combination are thrown in the mechanical seal
Fluid collection chamber is formed, the drainage hole is connected to the fluid collection chamber and drain interface.
4. according to claim 1 from cooling centrifugal pump, which is characterized in that it is provided with back blade on the centrifugal impeller,
The centrifugal impeller is fixed on by axle sleeve on the pump shaft, and sliding bearing, annular groove, bearing installation are provided in the pump housing
Position and runner end face；There are axial gap D, wherein 0.5mm≤D≤1.0mm, institute in the end face of the back blade with the runner end face
Back cavity is formed after stating back blade, axle sleeve, runner end face, sliding bearing, annular groove intercombination.
5. according to claim 4 from cooling centrifugal pump, which is characterized in that be additionally provided with gland installation in the pump housing
Position, return port and pressure relief vent, the axle sleeve, sliding bearing, return port, pressure relief vent, gland installation position, pump housing gland are combined with each other
After form pressure-releasing cavity.
6. according to claim 5 from cooling centrifugal pump, which is characterized in that the control system includes sediment outflow and remaining axis
To force balancing system, it is provided with pressure relief vent, liquid storage cylinder and first pressure detection probe on the integrated bearing case, described first
Pressure detecting probe is installed on the pressure relief vent and is connected to by return duct with the solenoid valve, and the return duct passes through threeway
It is connected to after being connect with the return port and with the liquid storage cylinder, the first pressure detection probe, solenoid valve and PLC can as a result,
Programmable controller is electrically connected and forms sediment outflow and residual axial force balance system with pressure-releasing cavity.
7. according to claim 1 from cooling centrifugal pump, which is characterized in that the control system further includes that automatic deaerating draws
Water system is provided with inlet, liquid storage cylinder and the second pressure detection probe, the devolatilizing chamber on the integrated bearing case
With the degassing orifice, gas vent is provided between the liquid storage cylinder and devolatilizing chamber, the liquid storage cylinder is connected to inlet,
The suction chamber is connected to the liquid storage cylinder and the pump chamber, and the second pressure detection probe, degasser and PLC can as a result,
Programmable controller electrical connection composition automatic deaerating diversion system.
8. according to claim 1 from cooling centrifugal pump, which is characterized in that the control system further includes grease chamber water inlet inspection
Examining system, the water inlet detection hole for being provided with grease chamber and being connected to the grease chamber on the integrated bearing case, the water inlet
Detection probe is installed in the water inlet detection hole, and the water inlet detection probe is electrically connected with the PLC programmable controller as a result,
Connect composition grease chamber water ingress detection system.
9. according to claim 1 from cooling centrifugal pump, which is characterized in that the control system further includes temperature detection system
System, the temperature measuring probe are set as multiple, and multiple temperature measuring probes are respectively arranged on the pump housing and described one
In body formula bearing housing, multiple temperature measuring probes are electrically connected composition system for detecting temperature with PLC programmable controller as a result,.
10. according to claim 1 from cooling centrifugal pump, which is characterized in that the control system further includes vibration detection
System, vibration detection probe are set as multiple, and multiple vibration detections probes are respectively arranged on the pump housing and described
In integrated bearing case, multiple vibration detection probes are electrically connected composition vibration detecting system with PLC programmable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721684205.1U CN207795693U (en) | 2017-12-06 | 2017-12-06 | A kind of certainly cooling centrifugal pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721684205.1U CN207795693U (en) | 2017-12-06 | 2017-12-06 | A kind of certainly cooling centrifugal pump |
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| CN207795693U true CN207795693U (en) | 2018-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939743A (en) * | 2017-12-06 | 2018-04-20 | 广州市昕恒泵业制造有限公司 | A kind of cooling centrifugal pump certainly |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939743A (en) * | 2017-12-06 | 2018-04-20 | 广州市昕恒泵业制造有限公司 | A kind of cooling centrifugal pump certainly |
| CN107939743B (en) * | 2017-12-06 | 2024-06-21 | 广州市昕恒泵业制造有限公司 | Self-cooling centrifugal pump |
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