CN109723650A - A kind of anti-off-axis molten urea pump and its operation method - Google Patents
A kind of anti-off-axis molten urea pump and its operation method Download PDFInfo
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- CN109723650A CN109723650A CN201910005622.6A CN201910005622A CN109723650A CN 109723650 A CN109723650 A CN 109723650A CN 201910005622 A CN201910005622 A CN 201910005622A CN 109723650 A CN109723650 A CN 109723650A
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Abstract
The invention discloses a kind of anti-off-axis molten urea pump and its operation methods, molten urea pump includes multi-purpose bracket, the pump housing, axis, sealing, sleeve, fore bearing, anti-breaking shaft device, rear bearing and motor, multi-purpose bracket includes bearer carrier, bolt hole, accommodating groove and elevation type rolling wheel, the upper left that the pump housing is fixed on multi-purpose bracket by the way that the support of pump housing front and rear sides is arranged in, including pump case, suction flange, impeller, outlet(discharge) flange and sensor, axis is screwed in the right end of impeller by nut, sealing is fixedly connected on the right side of the pump housing, sleeve left end is connect with sealing, fore bearing is connected to sleeve and sealing junction, anti-breaking shaft device is arranged in cartridge exterior, including monitoring device, analytical equipment, warning device and controller, rear bearing is connected to the right end of sleeve, motor is fixed on multi-purpose bracket by shock mount Upper right.In short, the present invention has many advantages, such as structurally reasonable, energy-efficient, safety and stability.
Description
Technical field
The invention belongs to chemical equipment technical field, it is specifically related to a kind of anti-off-axis molten urea pump and its operation side
Method.
Background technique
Urea, also known as carbamide (carbamide) are a kind of white by the organic compound that carbon, nitrogen, oxygen, hydrogen form
Crystal.One of simplest organic compound is the main nitrogenous of mammal and certain fish vivo protein metabolic breakdowns
Final product.It is also the current highest nitrogenous fertilizer of nitrogen content.As a kind of neutral fertilizer, urea is suitable for various soil and plant.It
It is easy to maintain, it is easy to use, it is small to the destruction of soil, it is a kind of biggish chemical nitrogen fertilizer of current usage amount.Industrially use ammonia
Gas and carbon dioxide urea synthesis under certain condition.
Fusing urea centrifugal pump is suitable for chemical fertilizer factory, is used to transporting molten urea solution, it can also be used to which conveying is without suspension
Other corrosive liquids of grain object.
Easily there is off-axis phenomenon as one of urea preparation process equipment in use in molten urea pump, breaks
Axis gently stops then urea preparation, heavy then damage integral device, causes heavy losses, and currently, breaking for molten urea pump
There is no a set of perfect solutions for axis phenomenon, so, design a kind of anti-off-axis molten urea pump and its operation method very
It is necessary to.
Summary of the invention
In view of the above problems, the present invention provides a kind of anti-off-axis molten urea pump and its operation methods.
The technical scheme is that a kind of anti-off-axis molten urea pump, main includes multi-purpose bracket, the pump housing, axis, sealing
Portion, sleeve, fore bearing, anti-breaking shaft device, rear bearing and motor, the multi-purpose bracket include bearer carrier, bolt hole, accommodating groove and
Elevation type rolling wheel, the bolt hole altogether there are four, be separately positioned on four corners of bearer carrier, the accommodating groove altogether there are four,
The interior bottom of bearer carrier is separately positioned in rectangle, the elevation type rolling wheel includes lifting motor, telescopic rod and idler wheel, the liter
The inner top of accommodating groove is arranged in drop motor, and the telescopic rod upper end is connected on the output shaft of lifting motor lower end, the rolling
The shaft of wheel is connected to the lower end of telescopic rod；The pump housing is fixed on multi-purpose bracket by the way that the support of pump housing front and rear sides is arranged in
Upper left, the pump housing includes pump case, suction flange, impeller, outlet(discharge) flange and sensor, and the outer of the pump housing is arranged in the pump case
The left end of pump case is arranged in side, and inner hollow, the suction flange, and the impeller is arranged inside pump case, the outlet method
Orchid is arranged in pump case upper end, and the sensor, which is inlayed, to be arranged on pump housing endophragm, and sensor includes temperature sensor, pressure sensing
Device and flow sensor, the axis are screwed in the right end of impeller by nut, and the sealing is fixedly connected on the right side of the pump housing,
And sealing is socketed on axis, the sleeve left end is connect with sealing, and sleeve is socketed on axis, and the fore bearing is connected to
Sleeve and sealing junction, and fore bearing lower part is fixedly connected with multi-purpose bracket, the anti-breaking shaft device is arranged outside sleeve
Portion, anti-breaking shaft device include monitoring device, analytical equipment, warning device and controller, and the monitoring device is arranged outside sleeve
On wall, for monitoring sound and friction temperature when axis rotation, the analytical equipment passes through with sensor and monitoring device respectively
Inner lead connection, for whether having generation come analysis axis according to the pressure and flow velocity of urea liquid and the sound of axis and temperature
The possibility of fracture, the warning device are arranged on the outside of anti-breaking shaft device, for sending out in the case where axis has fracture trend to staff
Alarm out, controller setting is connect inside anti-breaking shaft device, and with the motor, for reducing electricity in the case where axis has fracture trend
The operating of the revolving speed and emergent stopping motor of machine, the rear bearing are connected to the right end of sleeve, and rear bearing lower part and multi-purpose
Bracket is fixedly connected, and the motor is fixed on the upper right of multi-purpose bracket, and the output end and axis of motor by shock mount
Right end be fixedly connected by shaft coupling.
Further, the axis, which uses, passes through the processed 40cr steel alloy of high-frequency quenching, processed by high-frequency quenching
40cr steel alloy it is not easy to break, and have the characteristics that wear-resisting, high temperature resistant, corrosion resistant, be suitable as the manufacture material of axis.
Further, the impeller is cut before the use, and cutting preceding diameter with diameter ratio after cutting is 10:9,
Thickness and thickness ratio after cutting are 10:7 before cutting, and by repetition test, the cutting of aforementioned proportion can reduce the fracture feelings of axis
Condition, and increase the extraction rate of urea liquid.
Further, the alarm means of the warning device include that the transmission of remote alarms information and alarm lamp flash,
Remote alarms information send can to avoid there is no a staff around when molten urea pump operation, alarm lamp can not first when
Between be found.
Further, the shaft coupling outside is equipped with shield, and avoiding operator, accidentally touching shaft coupling causes loosening or inclined
It moves.
Further, it is fixedly installed hanging ring respectively above the pump case and motor, convenient for the movement of molten urea pump.
A kind of operation method of above-mentioned anti-off-axis molten urea pump, mainly comprises the steps that
Step 1: opening the pump case of molten urea pump, impeller taken out, and is according to diameter before cutting and diameter ratio after cutting
10:9, thickness installs impeller after cutting with thickness after cutting than cutting for the ratio of 10:7 impeller before cutting
In to pump case and axis connection, and debugged；
Step 2: after debugging, by the hanging ring that is arranged on pump case and motor by molten urea pump integral hoisting extremely
Elevation type rolling wheel is popped up accommodating groove by urea production workshop, and molten urea pump is moved to predetermined position with idler wheel by wheel, by urea
Taphole is connected to suction flange and seals fixation, and liquid is perfused into pump case, and pelletizer entrance and outlet(discharge) flange are sealed
Connection；
Step 3: opening motor, and the output shaft of motor is rotated by shaft coupling band moving axis, and impeller equally starts turning,
Under the action of centrifugal force, the liquid of impeller internal is pumped out outlet(discharge) flange, forms vacuum in pump case, and vacuum pressure is by urea liquid
It is pumped into pump case through suction flange, sensor carries out the flow velocity of pressure and urea in the temperature of urea liquid, pump case real-time
Monitoring；
Step 4: in urea melting pump operation, the anti-breaking shaft device being arranged on sleeve is started to work, and is existed by setting
Friction sound when the monitoring device monitoring axis operation of sleeve surface and temperature is distributed, the sound that such as rubs aggravates or distributes temperature liter
Height, whether analytical equipment analysis axis occurs deforming or being broken, be sounded an alarm from warning device to staff, and passes through control
Device reduces or stops motor running, avoids the occurrence of off-axis and molten urea pump is caused integrally to damage.
The beneficial effects of the present invention are: a kind of anti-off-axis molten urea pump provided by the invention and its operation method, relatively
For the prior art, by common impeller according to cut before diameter and cutting after diameter ratio be 10:9, cut before thickness and cutting
Thickness reduces the crack conditions of axis, and increase the extraction of urea liquid than cutting for the ratio of 10:7 impeller afterwards
Rate, while anti-breaking shaft device being arranged on sleeve, friction sound when by monitoring axis operation and distributes temperature, and analysis axis is
It is no to occur deforming or be broken, it is sounded an alarm from warning device to staff, and motor fortune is reduced or stopped by controller
Make, avoid the occurrence of off-axis and molten urea pump is caused integrally to damage, and retractable elevation type rolling wheel is set in bearer carrier bottom,
It is easy to remove.In short, the present invention has many advantages, such as structurally reasonable, energy-efficient, safety and stability.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is anti-breaking shaft device structural schematic diagram of the invention；
Fig. 4 is sensor of the invention structural schematic diagram；
Fig. 5 is circuit diagram of the invention.
Wherein, 1- is mostly used bracket, 11- bearer carrier, 12- bolt hole, 13- accommodating groove, 14- elevation type rolling wheel, 141- lifting
Motor, 142- telescopic rod, 143- idler wheel, the 2- pump housing, 21- support, 22- pump case, 23- suction flange, 24- impeller, 25- export method
Orchid, 26- sensor, 261- temperature sensor, 262- pressure sensor, 263- flow sensor, 3- axis, 31- nut, 4- sealing
Portion, 5- sleeve, 6- fore bearing, the anti-breaking shaft device of 7-, 71- monitoring device, 72- analytical equipment, 73- warning device, 74- control
Device, 8- rear bearing, 9- motor, 91- shock mount, 92- shaft coupling, 93- shield, 10- hanging ring.
Specific embodiment
For convenient for the understanding to technical solution of the present invention, with reference to the accompanying drawing 1-5 and specific embodiment to the present invention do into
The explanation of one step, embodiment do not constitute the restriction to invention protection scope.
As shown in Figs. 1-2, a kind of anti-off-axis molten urea pump, it is main include multi-purpose bracket 1, the pump housing 2, axis 3, sealing 4,
Sleeve 5, fore bearing 6, anti-breaking shaft device 7, rear bearing 8 and motor 9, being mostly used bracket 1 includes bearer carrier 11, bolt hole 12, storage
Slot 13 and elevation type rolling wheel 14, bolt hole 12 altogether there are four, be separately positioned on four corners of bearer carrier 11, accommodating groove 13 is shared
Four, the interior bottom of bearer carrier 11 is separately positioned in rectangle, elevation type rolling wheel 14 includes lifting motor 141,142 and of telescopic rod
The inner top of accommodating groove 13 is arranged in idler wheel 143, lifting motor 141, and 142 upper end of telescopic rod is connected to 141 lower end of lifting motor
Output shaft on, the shaft of idler wheel 143 is connected to the lower end of telescopic rod 142；The pump housing 2 is by being arranged in 2 front and rear sides of the pump housing
Support 21 is fixed on the upper left of multi-purpose bracket 1, and the pump housing 2 includes pump case 22, suction flange 23, impeller 24, outlet(discharge) flange 25
With sensor 26, the outside of the pump housing 2, and inner hollow is arranged in pump case 22, and the left end of pump case 22, leaf is arranged in suction flange 23
Wheel 24 is arranged inside pump case 22, and impeller 24 is cut before the use, and cutting preceding diameter with diameter ratio after cutting is 10:
9, thickness and thickness ratio after cutting are 10:7 before cutting, and outlet(discharge) flange 25 is arranged in 22 upper end of pump case, and sensor 26 inlays setting
On 22 inner wall of pump case, as shown in figure 4, sensor 26 includes temperature sensor 261, pressure sensor 262 and flow sensor
263, axis 3 is screwed in the right end of impeller 24 by nut 31, and axis 3, which uses, passes through the processed 40cr steel alloy of high-frequency quenching, close
Envelope portion 4 is fixedly connected on the right side of the pump housing 2, and sealing 4 is socketed on axis 3, and 5 left end of sleeve is connect with sealing 4, and sleeve
5 are socketed on axis 3, and fore bearing 6 is connected to sleeve 5 and 4 junction of sealing, and 6 lower part of fore bearing and the fixed company of multi-purpose bracket 1
It connects, anti-breaking shaft device 7 is arranged outside sleeve 5；
As shown in figure 3, anti-breaking shaft device 7 includes monitoring device 71, analytical equipment 72, warning device 73 and controller 74,
Monitoring device 71 is arranged on 5 outer wall of sleeve, and for monitoring sound and friction temperature when axis 3 rotates, analytical equipment 72 is distinguished
It is connect with sensor 26 and monitoring device 71 by inner lead, for according to the pressure and flow velocity of urea liquid and axis 3
Sound and temperature come whether analysis axis 3 has the possibility being broken, and the setting of warning device 73 is used in anti-breaking 7 outside of shaft device
It is sounded an alarm in the case where axis 3 has fracture trend to staff, the alarm means of warning device 73 include that remote alarms information is sent
It is flashed with alarm lamp, the setting of controller 74 is connect inside anti-breaking shaft device 7, and with motor 9, for having fracture in axis 3
The operating of the revolving speed and emergent stopping motor 9 of motor 9 is reduced under trend, rear bearing 8 is connected to the right end of sleeve 5, and rear axle
It holds 8 lower parts to be fixedly connected with multi-purpose bracket 1, motor 9 is fixed on the upper right of multi-purpose bracket 1, and electricity by shock mount 91
The output end of machine 9 and the right end of axis 3 are fixedly connected by shaft coupling 92, are equipped with shield 93 on the outside of shaft coupling 92, pump case 22 with
9 top of motor is fixedly installed hanging ring 10 respectively, and circuit diagram is as shown in Figure 5.
A kind of operation method of above-mentioned anti-off-axis molten urea pump, mainly comprises the steps that
Step 1: opening the pump case 22 of molten urea pump, impeller 24 taken out, according to diameter after diameter before cutting and cutting
Than for 10:9, before cutting thickness with cut after thickness than the ratio for 10:7 impeller 24 is cut, by leaf after cutting
It connect, and is debugged with axis 3 in 24 installation to pump case 22 of wheel；
Step 2: after debugging, molten urea pump is integrally hung with the hanging ring 10 on motor 9 by the way that pump case 22 is arranged in
It is filled to urea production workshop, elevation type rolling wheel 14 is popped up into accommodating groove 13, molten urea pump is moved to predetermined by wheel with idler wheel 143
Urea liquid outlet is connected to suction flange 23 and seals fixation, liquid is perfused into pump case 22, by pelletizer entrance by position
It is tightly connected with outlet(discharge) flange 25；
Step 3: opening motor 9, and the output shaft of motor 9 is rotated by shaft coupling 92 with moving axis 3, and impeller 24 equally starts
Rotation, under the influence of centrifugal force, the liquid inside impeller 24 are pumped out outlet(discharge) flange 25, form vacuum, vacuum in pump case 22
Urea liquid is pumped into pump case by pressure through suction flange 23, sensor 26 in the temperature of urea liquid, pump case pressure and
The flow velocity of urea carries out real-time monitoring；
Step 4: in urea melting pump operation, the anti-breaking shaft device 7 being arranged on sleeve 5 is started to work, and passes through setting
Friction sound when axis 3 is run is monitored in the monitoring device 71 of sleeve surface and distributes temperature, and the sound that such as rubs is aggravated or distributed
Temperature increases, and whether 72 analysis axis 3 of analytical equipment occurs deforming or being broken, be sounded an alarm from warning device 73 to staff,
And the running of motor 9 is reduced or stopped by controller 74, off-axis is avoided the occurrence of and molten urea pump is caused integrally to damage.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (6)
1. a kind of anti-off-axis molten urea pump, which is characterized in that main includes multi-purpose bracket (1), the pump housing (2), axis (3), sealing
Portion (4), sleeve (5), fore bearing (6), anti-breaking shaft device (7), rear bearing (8) and motor (9), the multi-purpose bracket (1) include
Bearer carrier (11), bolt hole (12), accommodating groove (13) and elevation type rolling wheel (14), the bolt hole (12) altogether there are four, respectively
It is arranged in four corners of bearer carrier (11), the accommodating groove (13) is separately positioned on bearer carrier (11) in rectangle there are four being total to
Interior bottom, the elevation type rolling wheel (14) includes lifting motor (141), telescopic rod (142) and idler wheel (143), the lifting
The inner top in accommodating groove (13) is arranged in motor (141), and telescopic rod (142) upper end is connected to lifting motor (141) lower end
Output shaft on, the shaft of the idler wheel (143) is connected to the lower end of telescopic rod (142)；The pump housing (2) is being pumped by setting
The support (21) of body (2) front and rear sides is fixed on the upper left of multi-purpose bracket (1), and the pump housing (2) includes pump case (22), import method
Blue (23), impeller (24), outlet(discharge) flange (25) and sensor (26), the pump case (22) are arranged in the outside of the pump housing (2), and interior
Portion is hollow, and suction flange (23) setting is in the left end of pump case (22), and impeller (24) setting is internal in pump case (22), institute
It states outlet(discharge) flange (25) to be arranged in pump case (22) upper end, the sensor (26), which is inlayed, to be arranged on pump case (22) inner wall, sensing
Device (26) includes temperature sensor (261), pressure sensor (262) and flow sensor (263), and the axis (3) passes through nut
(31) it is screwed in the right end of impeller (24), the sealing (4) is fixedly connected on the right side of the pump housing (2), and sealing (4) is socketed
On axis (3), sleeve (5) left end is connect with sealing (4), and sleeve (5) is socketed on axis (3), the fore bearing (6)
Sleeve (5) and sealing (4) junction are connected to, and fore bearing (6) lower part is fixedly connected with multi-purpose bracket (1), it is described anti-breaking
Shaft device (7) setting is external in sleeve (5), and anti-breaking shaft device (7) includes monitoring device (71), analytical equipment (72), alarm dress
(73) and controller (74) are set, the monitoring device (71) is arranged on sleeve (5) outer wall, for monitoring when axis (3) rotate
Sound and friction temperature, the analytical equipment (72) are connected with sensor (26) and monitoring device (71) by inner lead respectively
It connects, for whether being broken according to the sound and temperature of the pressure and flow velocity and axis (3) of urea liquid come analysis axis (3)
Possibility, the warning device (73) setting on the outside of anti-breaking shaft device (7), in the case where axis (3) has fracture trend to work
Personnel sound an alarm, and controller (74) setting is internal in anti-breaking shaft device (7), and connect with the motor (9), in axis
(3) there is the operating of revolving speed and emergent stopping motor (9) that motor (9) are reduced under fracture trend, the rear bearing (8) is connected to
The right end of sleeve (5), and rear bearing (8) lower part is fixedly connected with multi-purpose bracket (1), the motor (9) passes through shock mount
(91) it is fixed on the upper right of multi-purpose bracket (1), and the output end of motor (9) and the right end of axis (3) pass through shaft coupling (92)
It is fixedly connected.
2. a kind of anti-off-axis molten urea pump according to claim 1, which is characterized in that the axis (3) is using through excessively high
The 40cr steel alloy that frequency was quenched.
3. a kind of anti-off-axis molten urea pump according to claim 1, which is characterized in that the impeller (24) is using it
Before cut, and cut before diameter and cutting after diameter ratio be 10:9, cut before thickness and cutting after thickness ratio be 10:7.
4. a kind of anti-off-axis molten urea pump according to claim 1, which is characterized in that set on the outside of the shaft coupling (92)
There are shield (93).
5. a kind of anti-off-axis molten urea pump according to claim 1, which is characterized in that the pump case (22) and motor
(9) top is fixedly installed hanging ring (10) respectively.
6. a kind of operation method of anti-off-axis molten urea pump described in -5 any one according to claim 1, which is characterized in that
It mainly comprises the steps that
Step 1: opening the pump case (22) of molten urea pump, and impeller (24) are taken out, according to diameter after diameter before cutting and cutting
Than for 10:9, thickness cuts impeller (24) than the ratio for 10:7 after thickness and cutting before cutting, general after cutting
It connect, and is debugged with axis (3) in impeller (24) installation to pump case (22)；
Step 2: by the hanging ring (10) being arranged on pump case (22) and motor (9) that molten urea pump is whole after debugging
Elevation type rolling wheel (14) are popped up accommodating groove (13), wheel is moved molten urea pump with idler wheel (143) to urea production workshop by lifting
It moves to predetermined position, urea liquid outlet is connected to suction flange (23) and seals fixation, liquid is perfused into pump case (22),
Pelletizer entrance and outlet(discharge) flange (25) are tightly connected；
Step 3: opening motor (9), and the output shaft of motor (9) is rotated by shaft coupling (92) band moving axis (3), and impeller (24) is same
Sample starts turning, and under the influence of centrifugal force, the internal liquid of impeller (24) is pumped out outlet(discharge) flange (25), pump case (22) interior shape
At vacuum, urea liquid is pumped into pump case by vacuum pressure through suction flange (23), sensor (26) to the temperature of urea liquid,
The flow velocity of pressure and urea in pump case carries out real-time monitoring；
Step 4: in urea melting pump operation, the anti-breaking shaft device (7) being arranged on sleeve (5) is started to work, and passes through setting
Sleeve surface monitoring device (71) monitoring axis (3) run when friction sound and distribute temperature, such as rub sound aggravate or
Temperature raising is distributed, whether analytical equipment (72) analysis axis (3) occur deforming or being broken, from warning device (73) to staff
It sounds an alarm, and motor (9) running is reduced or stopped by controller (74), avoid the occurrence of off-axis and cause molten urea pump whole
Body damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005622.6A CN109723650B (en) | 2019-01-03 | 2019-01-03 | Anti-broken shaft urea melting pump and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005622.6A CN109723650B (en) | 2019-01-03 | 2019-01-03 | Anti-broken shaft urea melting pump and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109723650A true CN109723650A (en) | 2019-05-07 |
| CN109723650B CN109723650B (en) | 2020-07-10 |
Family
ID=66298137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005622.6A Active CN109723650B (en) | 2019-01-03 | 2019-01-03 | Anti-broken shaft urea melting pump and operation method thereof |
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| Country | Link |
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| CN (1) | CN109723650B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110762027A (en) * | 2019-11-05 | 2020-02-07 | 三联泵业股份有限公司 | Quick-moving dredge pump |
| CN111059412A (en) * | 2019-12-23 | 2020-04-24 | 安徽德科电气科技有限公司 | Gas turbine generator |
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| CN1749573A (en) * | 2004-09-16 | 2006-03-22 | 北京化工大学 | Differential thrust balance device for rotary fluid machinery |
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| Publication number | Publication date |
|---|---|
| CN109723650B (en) | 2020-07-10 |
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