CN113202810A

CN113202810A - Mud pump shaft seal intelligent detection system

Info

Publication number: CN113202810A
Application number: CN202110510371.4A
Authority: CN
Inventors: 马培良; 李里; 李晓燕; 殷信刚; 韦杏静; 刘静; 刘凡; 冯兆国; 黄旭鑫; 夏毅成; 陈德华; 彭波; 董恒瑞; 邱旻炜
Original assignee: CCCC Guangzhou Dredging Co Ltd.
Current assignee: CCCC Guangzhou Dredging Co Ltd.
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-08-03
Anticipated expiration: 2041-05-11
Also published as: CN113202810B

Abstract

The invention discloses an intelligent detection system for a dredge pump shaft seal, which comprises a dredge pump shaft end water sealing system, an intelligent detection sensing system and an intelligent processing system, wherein real-time detection data of a flow sensor, a pressure transmitter and a temperature transmitter pass through a remote I/O module and are transmitted to an intelligent processing computer (which also serves as a man-machine interface workstation of the intelligent system) through an Ethernet switch, the intelligent processing computer also receives other dredging process data acquired by an SCADA server of a dredging control system and a PLC host of the dredging control system through the Ethernet switch, and after comprehensive processing of the intelligent processing computer, information such as comprehensive diagnosis of shaft seal system components and the like is displayed on an interface, and an alarm and other prompts are provided for an operator if necessary. The state information of the shaft seal system components is acquired by an intelligent sensing means, the health degree of the shaft seal system components is researched and judged in advance, prejudgment, alarming and coping measures are taken, and the overall service life of the shaft seal system can be effectively prolonged.

Description

Mud pump shaft seal intelligent detection system

Technical Field

The invention relates to the technical field of intelligent operation of dredging ships, in particular to an intelligent detection system for a dredge pump shaft seal.

Background

The dredge pump system is one of the key devices of the dredging dredger, the dredge pump is used as the pumping device of the dredging mud, no matter the dredge is a trailing suction type dredger or a cutter suction type dredger, the working efficiency and the operation state of the dredge pump system directly concern the whole construction efficiency of the suction dredger. An intelligent dredge pump sensing system is established, the running state of the dredge pump is detected in real time, and the method has important significance for construction guidance of a dredger; the mud pump shaft seal is regarded as the key component part of mud pump system, its running state and life directly concern whole mud pump system's normal use, if the mud pump shaft seal system damages in the use, then the mud pump system can't continue to use, must shut down immediately and change new mud pump shaft seal system spare part, but conventional mud pump shaft seal system lacks effectual automatic detection means, can't study the operating condition of its spare part in advance, often need can follow the outside observation and know when its spare part damages completely, cause the situation of passive shutdown maintenance, do not have the ability of effectively prolonging the life of shaft seal system spare part yet.

Therefore, the invention provides an intelligent detection system for a dredge pump shaft seal.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the conventional mud pump shaft seal system lacks an effective automatic detection means, cannot study and judge the working states of parts in advance, often needs to be observed and known from the outside when the parts are completely damaged, causes the situation of passive shutdown and maintenance, and further does not have the capability of effectively prolonging the service lives of the parts of the shaft seal system, the invention provides an intelligent detection system for the mud pump shaft seal.

The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent detection system for the dredge pump shaft seal comprises a dredge pump shaft end water sealing system, an intelligent detection sensing system and an intelligent processing system; the mud pump shaft end water sealing system comprises a mud pump shaft end water sealing pump; a mud pump shaft end sealing water pipeline is arranged on the left side of the mud pump shaft end sealing water pump; a sand removing device is arranged above the mud pump shaft end water sealing pipeline, and the mud pump shaft end water sealing pipeline is connected with a feed inlet of the sand removing device; a desanding valve is arranged above the desanding device; a shaft seal flushing water inlet pipe is arranged on the left side of the sand removing device and is connected with a water outlet of the sand removing device; the sand removing device realizes self cleaning through the centrifugal rod and the elastic cotton; a dredge pump impeller is arranged below one end of the bottom of the dredge pump shaft end water sealing pipeline; a mud pump shaft sleeve is arranged below one end of the bottom of the shaft seal flushing water inlet pipe; a mud pump shaft seal is arranged on the periphery of the mud pump shaft envelope; the mud pump shaft seals are arranged in three groups and are uniformly distributed at equal intervals; and a shaft seal flushing water outlet pipe is arranged on the left side of the shaft seal of the dredge pump.

Preferably, the intelligent detection sensing system is provided with a flow detection device sleeved on the outer ring of a mud pump shaft end water sealing pipeline in the mud pump shaft end water sealing system; a pressure detection device is arranged on the left of the flow detection device; the outer rings of the shaft seal flushing water inlet pipe and the shaft seal flushing water outlet pipe are respectively sleeved with a flow detection device and a temperature detection device; the temperature detection device is a PT1000 thermal resistance temperature detection probe; and the intelligent detection sensing system is also provided with a dredging control system PLC remote I/O station and an intelligent system computer.

Preferably, the intelligent processing system is provided with a remote I/O module, a flow sensor, a pressure transmitter, a temperature transmitter, a PLC host, an Ethernet switch, an SCADA server, an intelligent processing computer, a bridge/rake arm angle sensor, a yield calculation output board, a frequency conversion signal board, an SSI encoder communication line, a current signal acquisition loop and an isolation module.

Preferably, the remote I/O module is respectively and electrically connected with the pressure transmitter, the temperature transmitter, the isolation module, the variable frequency signal board and the output calculation board through a current signal acquisition loop; the output end of the flow sensor is electrically connected with the input end of the isolation module; the current signal acquisition loop is a circuit of 4-20mA signals; the remote I/O module is electrically connected with the bridge/rake arm angle sensor through an encoder SSI communication line; the output end of the remote I/O module is electrically connected with the input end of the PLC host; the output end of the PLC host is electrically connected with the Ethernet switch; and the output end of the Ethernet switch is respectively and electrically connected with the SCADA server and the input end of the intelligent processing computer.

Preferably, the sand removing device comprises a separating cylinder; a feed inlet is formed in the upper end of the separating cylinder and is tangent to the separating cylinder; a water outlet is formed in the upper end of the separation cylinder; an installation plate is fixedly connected in the water outlet; a water outlet channel is formed in the mounting plate; the upper side of the mounting plate is fixedly connected with a motor; a rotating shaft is fixedly connected to an output shaft of the motor, penetrates through the mounting plate and extends to the lower end of the separating cylinder; a group of centrifugal rods are hinged on the rotating shaft; elastic cotton is arranged at one end of the centrifugal rod, which is far away from the rotating shaft; when the mud pump shaft seal intelligent detection system stops working, the sand and mud in the residual part on the wall of the separating cylinder are difficult to avoid, the sand and mud are hardened on the wall after drying, the next use of the sand removing device is influenced, the rotating shaft is driven to rotate by the starting motor at the moment, the centrifugal rod rotates and is thrown, the elastic cotton rubs against the wall of the separating cylinder, the effect of cleaning the wall of the cylinder is achieved, the sand and mud are prevented from being hardened on the wall after drying, and the purpose of self-cleaning is achieved.

Preferably, a driven rod is fixedly connected to the rotating shaft; an elastic strip is fixedly connected to the wall of the separation barrel, and the elastic strip and the driven rod are located at the same height; one end of the elastic strip close to the driven rod is fixedly connected with a marble; during operation, the driven rod is driven to rotate when the rotating shaft rotates, then the driven rod strikes the marble, and the marble strikes the wall of the separating cylinder repeatedly under the action of the elastic strip, so that the wall of the separating cylinder vibrates, silt cleaned by the elastic cotton is shaken off and flows out of the separating cylinder along the wall of the separating cylinder, and the cleaning effect is improved.

Preferably, the centrifuge bar comprises a centrifuge bowl; a telescopic rod is connected in the centrifugal cylinder in a sliding manner; a first spring is fixedly connected between the telescopic rod and the bottom end of the centrifugal cylinder; during operation, it is rotatory to drive the pivot through starter motor, and then the centrifugal rod is rotatory and is got rid of, and simultaneously under the effect of centrifugal force and spring force, the flexible stick can freely stretch out and draw back in the centrifuge bowl to the conical surface of laminating separation barrel that the elastic cotton can be better reaches better clean effect.

Preferably, a sliding groove is formed in the telescopic rod; a gravity ball is connected in the sliding groove in a sliding manner; a second spring is fixedly connected between the gravity ball and the bottom end of the sliding chute; an arc-shaped elastic sheet is fixedly connected with the opening end of the sliding chute; one side of the arc-shaped elastic sheet, which is far away from the sliding groove, is fixedly connected with a group of adjusting rods; one end of the adjusting rod, which is far away from the arc-shaped elastic sheet, is fixedly connected with the elastic cotton; the elastic cotton is of an arc-shaped structure, and one side of the elastic cotton fixedly connected with the adjusting rod is an arc-shaped outer side; the during operation, it is rotatory to drive the pivot through starter motor, and then the centrifugal rod is rotatory and thrown up, this moment under the effect of centrifugal force, the gravity ball slides and extrudees the arc shell fragment in the spout, the arc shell fragment drives the adjusting lever and outwards opens, and then the adjusting lever elongates the elastic cotton, increase the area of contact between elastic cotton and the separating drum section of thick bamboo wall, and then increase clearance area, its shape is difficult for taking place the change when the elastic cotton is elongated, through setting up the elastic cotton into the arc structure, make the elastic cotton surface after elongating and separating drum section of thick bamboo wall keep parallel as far as possible, thereby the laminating section of thick bamboo wall of great degree, the effect of cleaning is improved.

Preferably, mounting grooves are formed in the two outer adjusting rods; a movable plate is arranged in the mounting groove; a third spring is fixedly connected between the movable plate and the adjacent adjusting rod; a water bag is fixedly connected between one side of the movable plate close to the third spring and the wall of the mounting groove; an extrusion pipe is fixedly connected to one side of the adjusting rod, which is far away from the water bag, and the extrusion pipe is communicated with the water bag through a pipeline; when the elastic-arc-shaped piece drives the adjusting rod to be outwards opened, the movable plate is pulled through the third spring to extrude the water bag through the movable plate, water in the water bag is sprayed out of the extrusion pipe through the pipeline and is sprayed onto the wall of the separating cylinder, and accordingly silt cleaned by the elastic cotton is wetted and flows out of the separating cylinder along the wall of the separating cylinder.

Preferably, the outlet end of the extrusion pipe is fixedly connected with an arc-shaped baffle through a support, and the arc-shaped baffle extends out of the extrusion pipe; the end part of the outlet end of the extrusion pipe is fixedly connected with an arc-shaped water distribution sheet; during operation, fly leaf extrusion water pocket, when the water in the water pocket passes through the pipeline and spouts from extruding the pipe, strikes cowl and dispersed by its bounce-back, and the water after the bounce-back strikes arc water diversion piece and is dispersed once more to increased the scope of spraying of rivers, makeed the silt under the cotton clearance of elasticity moist and flow out the cylinder along section of thick bamboo wall, further improved cleaning effect.

The invention has the following beneficial effects:

1. the invention relates to an intelligent detection system for a dredge pump shaft seal, which is characterized in that a flow sensor, a pressure detection device and a temperature detection device are added on the basis of original dredge pump detection parameters, a flow target value is obtained through a remote I/O station of a dredge control system PLC, a dredge pump shaft end sealing water pump is controlled through an output signal after the calculation of an intelligent system computer, the normal sealing water flow is ensured, the optimal efficiency point of the dredge pump is maintained, the service life of shaft seal parts is prolonged, on the other hand, the intelligent diagnosis is carried out through a human-computer interface intelligent system computer system, a prompt or an alarm is output, the alarm is extended to a whole ship mechanical equipment alarm system, and information is provided for manually judging the working state of the shaft seal parts in advance.

2. According to the intelligent detection system for the dredge pump shaft seal, the flow sensor, the pressure transmitter and the temperature transmitter detect data in real time, the data are transmitted to the intelligent processing computer (which is also used as a man-machine interface workstation of the intelligent system) through the remote I/O module and the Ethernet switch, the intelligent processing computer also receives other dredging process data acquired by the SCADA server of the dredging control system and the PLC host of the dredging control system through the Ethernet switch, and after the comprehensive processing of the intelligent processing computer, the data such as the state comprehensive diagnosis of shaft seal system components are output to the intelligent processing computer through the Ethernet switch to realize the functions of displaying or alarming and the like, so that the overall service life of the shaft seal system can be effectively prolonged, the states of the shaft seal system components can be intelligently sensed and judged, and pre-judgment, alarming and coping measures can be made.

3. When the intelligent detection system of the mud pump shaft seal stops working, the sand and mud which are difficult to be avoided and remain on the wall of the separation cylinder are dried and hardened on the cylinder wall to influence the next use of the sand removing device, at the moment, the rotating shaft is driven to rotate by starting the motor, the centrifugal rod rotates and is thrown up, the elastic cotton rubs against the cylinder wall of the separation cylinder to play a role in cleaning the cylinder wall, and the sand and mud are prevented from being hardened on the cylinder wall after being dried, so that the aim of self-cleaning is fulfilled.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic structural diagram of a water sealing system at the shaft end of a dredge pump in the invention;

FIG. 2 is a schematic diagram of the structure of the intelligent detection sensing system of the present invention;

FIG. 3 is a schematic diagram of an intelligent processing system according to the present invention;

FIG. 4 is a schematic perspective view of the sand removing device of the present invention;

FIG. 5 is a sectional view of the sand removing device of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a schematic view of the construction of the centrifugal bar of the present invention;

FIG. 8 is a schematic view of the telescopic rod of the present invention;

FIG. 9 is a cross-sectional view of an adjuster rod according to the present invention;

fig. 10 is a partial enlarged view at B in fig. 9;

in the figure: 1. a water sealing system at the end of the dredge pump shaft; 101. a water pump is sealed at the end of the mud pump shaft; 102. sealing a water pipeline at the end of the mud pump shaft; 103. a sand removal device; 104. a degassing valve; 105. a shaft seal flushing water inlet pipe; 106. a dredge pump impeller; 107. a mud pump shaft envelope; 108. a mud pump shaft seal; 109. a shaft seal flushing water outlet pipe; 2. an intelligent detection sensing system; 201. a flow detection device; 202. a pressure detection device; 203. a temperature detection device; 204. a dredging control system PLC remote I/O station; 205. an intelligent system computer; 3. an intelligent processing system; 301. a remote I/O module; 302. a flow sensor; 303. a pressure transmitter; 304. a temperature transmitter; 305. a PLC host; 306. an Ethernet switch; 307. an SCADA server; 308. an intelligent processing computer; 309. a bridge/rake arm angle sensor; 310. a yield calculation output board; 311. a frequency conversion signal plate; 312. an SSI encoder communication line; 313. a current signal acquisition loop; 314. an isolation module; 4. a separation cylinder; 5. a feed inlet; 6. a water outlet; 7. mounting a plate; 8. a water outlet channel; 9. a motor; 10. a rotating shaft; 11. a centrifuge bar; 12. elastic cotton; 13. a driven lever; 14. an elastic strip; 15. a marble; 16. a centrifugal cylinder; 17. a telescopic rod; 18. a first spring; 19. a chute; 20. a gravity ball; 21. a second spring; 22. an arc-shaped elastic sheet; 23. an adjusting lever; 24. mounting grooves; 25. a movable plate; 26. a third spring; 27. a water bladder; 28. extruding a pipe; 29. a support; 30. an arc-shaped baffle plate; 31. an arc-shaped water diversion sheet.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 1 to 2, the intelligent detection system for the shaft seal of the dredge pump comprises a shaft end water sealing system 1 of the dredge pump, an intelligent detection sensing system 2 and an intelligent processing system 3; the mud pump shaft end water sealing system 1 comprises a mud pump shaft end water sealing pump 101; a mud pump shaft end sealing water pipeline 102 is arranged on the left side of the mud pump shaft end sealing water pump 101; a sand removing device 103 is arranged above the mud pump shaft end water sealing pipeline 102, and the mud pump shaft end water sealing pipeline 102 is connected with a feed inlet 5 of the sand removing device 103; a desanding valve 104 is arranged above the desanding device 103; a shaft seal flushing water inlet pipe 105 is arranged on the left side of the sand removing device 103, and the shaft seal flushing water inlet pipe 105 is connected with a water outlet 6 of the sand removing device 103; the sand removing device 103 realizes self cleaning through a centrifugal rod 11 and elastic cotton 12; a dredge pump impeller 106 is arranged below one end of the bottom of the dredge pump shaft end water sealing pipeline 102; a mud pump shaft seal sleeve 107 is arranged below one end of the bottom of the shaft seal flushing water inlet pipe 105; a mud pump shaft seal 108 is arranged on the periphery of the mud pump shaft envelope 107; the mud pump shaft seals 108 are provided with three groups which are uniformly distributed at equal intervals; and a shaft seal flushing water outlet pipe 109 is arranged on the left side of the dredge pump shaft seal 108.

The intelligent detection sensing system 2 is characterized in that a flow detection device 201 is sleeved on the outer ring of the mud pump shaft end water sealing pipeline 102 in the mud pump shaft end water sealing system 1; a pressure detection device 202 is arranged at the left of the flow detection device 201; the outer rings of the shaft seal flushing water inlet pipe 105 and the shaft seal flushing water outlet pipe 109 are respectively sleeved with a flow detection device 201 and a temperature detection device 203; the temperature detection device 203 is a PT1000 thermal resistance temperature detection probe; the intelligent detection sensing system 2 is also provided with a dredging control system PLC remote I/O station 204 and an intelligent system computer 205.

In this embodiment, on the basis of the original mud pump detection parameters, the flow detection device 201, the pressure detection device 202 and the temperature detection device 203 are added, a flow target value is obtained through the remote I/O station 204 of the mud pump control system PLC, a signal is output through the intelligent system computer 205, the mud pump shaft end water sealing pump 101 is controlled, the water sealing flow is guaranteed to be normal, and the optimal efficiency point of the mud pump is maintained, so that the service life of the shaft seal part is prolonged, on the other hand, the shaft seal is intelligently judged through the human-computer interface intelligent system computer 205, an alarm or a prompt is output, and the shaft seal is extended to a whole-ship mechanical equipment alarm system, so that the working state of the system part is researched and judged in advance, and clear alarm information is provided in time.

Example two

As shown in fig. 3, the intelligent processing system 3 is provided with a remote I/O module 301, a flow sensor 302, a pressure transmitter 303, a temperature transmitter 304, a PLC host 305, an ethernet switch 306, a SCADA server 307, an intelligent processing computer 308, a bridge/rake arm angle sensor 309, a production calculation output board 310, a variable frequency signal board 311, an SSI encoder communication line 312, a current signal acquisition loop 313 and an isolation module 314.

The remote I/O module 301 is electrically connected with the pressure transmitter 303, the temperature transmitter 304, the isolation module 314, the variable frequency signal board 311 and the yield calculation output board 310 through a current signal acquisition loop 313; the output end of the flow sensor 302 is electrically connected with the input end of the isolation module 314; the current signal acquisition loop 313 is a 4-20mA signal line; the remote I/O module 301 is electrically connected with the bridge/rake arm angle sensor 309 through an encoder SSI communication line; the output end of the remote I/O module 301 is electrically connected with the input end of the PLC host 305; the output end of the PLC host 305 is electrically connected to the ethernet switch 306; the output end of the ethernet switch 306 is electrically connected to the SCADA server 307 and the input end of the intelligent processing computer 308.

In this embodiment, the flow sensor 302, the pressure transmitter 303, and the temperature transmitter 304 detect data in real time, and is transmitted to an intelligent processing computer 308 (which is also an intelligent system man-machine interface workstation) through a remote I/O module 301 and an Ethernet switch 306, the intelligent processing computer 308 also receives other dredging process data collected by a dredging control system SCADA server 307 and a dredging control system PLC host 305 through the Ethernet switch 306, after comprehensive processing by the intelligent processing computer 308, the data of the state comprehensive diagnosis of the shaft seal system components and the like are output to an intelligent processing computer 308 through an Ethernet switch 306 for the functions of display, alarm, regulation and the like, and further, the service life of the whole shaft seal system can be effectively prolonged, the states of the components of the shaft seal system can be intelligently sensed and judged, and pre-judgment, alarming and countermeasures can be taken.

EXAMPLE III

As shown in fig. 4 to 10, the sand removing device 103 includes a separation cylinder 4; a feed inlet 5 is formed in the upper end of the separating cylinder 4, and the feed inlet 5 is tangent to the separating cylinder 4; a water outlet 6 is arranged at the upper end of the separation cylinder 4; an installation plate 7 is fixedly connected in the water outlet 6; a water outlet channel 8 is formed in the mounting plate 7; the upper side of the mounting plate 7 is fixedly connected with a motor 9; a rotating shaft 10 is fixedly connected to an output shaft of the motor 9, and the rotating shaft 10 penetrates through the mounting plate 7 and extends to the lower end of the separating cylinder 4; a group of centrifugal rods 11 are hinged on the rotating shaft 10; one end of the centrifugal rod 11, which is far away from the rotating shaft 10, is provided with elastic cotton 12; when the automatic sand removing device works, water flow carrying sand particles enters the separating cylinder 4 through the feeding hole 5 and forms a rotating state, the sand particles heavier than water are thrown to the side wall and are gradually conveyed to the bottom of the separating cylinder 4 and are discharged outwards from the bottom, clear water in the central part is discharged from the water outlet 6 in the top, the purpose of water-sand separation is achieved, when the intelligent mud pump shaft seal detection system stops working, residual sand particles and slurry on the wall of the separating cylinder 4 are difficult to avoid, the sand particles and the slurry harden on the wall after drying, the next use of the sand removing device 103 is affected, the rotating shaft 10 is driven to rotate through the starting motor 9 at the moment, the centrifugal rod 11 rotates and is thrown, the elastic cotton 12 rubs against the wall of the separating cylinder 4, the effect of cleaning the wall of the cylinder is achieved, the sand particles and the slurry are prevented from hardening on the wall after drying, and the purpose of self-cleaning is achieved.

A driven rod 13 is fixedly connected to the rotating shaft 10; an elastic strip 14 is fixedly connected to the wall of the separation barrel 4, and the elastic strip 14 and the driven rod 13 are located at the same height; one end of the elastic strip 14 close to the driven rod 13 is fixedly connected with a marble 15; during operation, the driven rod 13 is driven to rotate when the rotating shaft 10 rotates, then the driven rod 13 strikes the marble 15, the marble 15 strikes the wall of the separation cylinder 4 repeatedly under the action of the elastic strip 14, and therefore the wall vibrates, silt cleaned by the elastic cotton 12 is shaken off and flows out of the separation cylinder 4 along the wall of the separation cylinder, and the cleaning effect is improved.

The centrifugal bar 11 comprises a centrifugal cylinder 16; a telescopic rod 17 is connected in the centrifugal cylinder 16 in a sliding manner; a first spring 18 is fixedly connected between the telescopic rod 17 and the bottom end of the centrifugal cylinder 16; during operation, the starting motor 9 drives the rotating shaft 10 to rotate, the centrifugal rod 11 rotates and is thrown up, and meanwhile, the telescopic rod 17 can freely stretch out and draw back in the centrifugal cylinder 16 under the action of centrifugal force and spring force, so that the elastic cotton 12 can be better attached to the conical surface of the separation cylinder 4, and a better cleaning effect is achieved.

A sliding groove 19 is formed in the telescopic rod 17; a gravity ball 20 is connected in the sliding groove 19 in a sliding manner; a second spring 21 is fixedly connected between the gravity ball 20 and the bottom end of the sliding groove 19; an arc-shaped elastic sheet 22 is fixedly connected with the opening end of the sliding groove 19; one side of the arc-shaped elastic sheet 22, which is far away from the sliding groove 19, is fixedly connected with a group of adjusting rods 23; one end of the adjusting rod 23 far away from the arc-shaped elastic sheet 22 is fixedly connected with the elastic cotton 12; the elastic cotton 12 is of an arc-shaped structure, and one side of the elastic cotton 12 fixedly connected with the adjusting rod 23 is an arc-shaped outer side; the during operation, it is rotatory to drive pivot 10 through starter motor 9, and then centrifugal rod 11 is rotatory and thrown up, this moment under the effect of centrifugal force, gravity ball 20 slides and extrudes arc shell fragment 22 in spout 19, arc shell fragment 22 drives adjusting lever 23 and outwards opens, and then adjusting lever 23 elongates elastic cotton 12, increase elastic cotton 12 and the area of contact between the 4 section of thick bamboo walls of separating cylinder, and then increase clearance area, its shape is difficult for avoiding when elastic cotton 12 is elongated changes, through setting up elastic cotton 12 into the arc structure, make the elastic cotton 12 surface after elongating and the 4 section of thick bamboo walls of separating cylinder keep parallel as far as possible, thereby the laminating section of thick bamboo wall of great degree, improve the clearance effect.

Mounting grooves 24 are formed in the two outer adjusting rods 23; a movable plate 25 is arranged in the mounting groove 24; a third spring 26 is fixedly connected between the movable plate 25 and the adjacent adjusting rod 23; a water bag 27 is fixedly connected between one side of the movable plate 25 close to the third spring 26 and the wall of the mounting groove 24; an extrusion pipe 28 is fixedly connected to one side of the adjusting rod 23 away from the water bag 27, and the extrusion pipe 28 is communicated with the water bag 27 through a pipeline; when the separation cylinder 4 works, the arc-shaped elastic sheet 22 drives the adjusting rod 23 to open outwards, the movable plate 25 is pulled through the third spring 26, the movable plate 25 extrudes the water bag 27, water in the water bag 27 is sprayed out of the extrusion pipe 28 through a pipeline and is sprayed onto the cylinder wall of the separation cylinder 4, and accordingly silt cleaned by the elastic cotton 12 is moistened and flows out of the separation cylinder 4 along the cylinder wall.

The outlet end of the extrusion pipe 28 is fixedly connected with an arc baffle 30 through a support 29, and the arc baffle 30 extends out of the extrusion pipe 28; the end part of the outlet end of the extrusion pipe 28 is fixedly connected with an arc-shaped water distribution sheet 31; during operation, fly leaf 25 extrusion water pocket 27, when the water in the water pocket 27 was spout from extruding the pipe 28 through the pipeline, striking cowl 30 and dispersed by its bounce-back, the water after the bounce-back strikes arc water diversion piece 31 and is dispersed once more to increased the scope of spraying of rivers, makeed silt under the elastic cotton 12 clearance moist and flow out separating cylinder 4 along the section of thick bamboo wall, further improved the cleaning effect.

During working, on the basis of original mud pump detection parameters, a flow detection device 201, a pressure detection device 202 and a temperature detection device 203 are added, a flow target value is obtained through a remote I/O station 204 of a mud control system PLC, a signal is output through an intelligent system computer 205, a mud pump shaft end sealing water pump 101 is controlled, the normal sealing water flow is ensured, the optimal efficiency point of the mud pump is maintained, and the service life of a shaft seal part is prolonged; the flow sensor 302, the pressure transmitter 303 and the temperature transmitter 304 detect data in real time, the data are transmitted to the intelligent processing computer 308 through the remote I/O module 301 and the Ethernet switch 306, and are simultaneously an intelligent system man-machine interface workstation, the intelligent processing computer 308 also receives other dredging process data acquired by the dredging control system SCADA server 307 and the dredging control system PLC host 305 through the Ethernet switch 306, after the comprehensive processing of the intelligent processing computer 308, the data such as the state comprehensive diagnosis of the shaft seal system component are output to the intelligent processing computer 308 through the Ethernet switch 306 to realize the functions of displaying, alarming, adjusting and the like, the state of the shaft seal system component can be intelligently sensed and judged, the pre-judgment, the alarming and the coping measures are made, and the integral service life of the shaft seal system can be effectively prolonged; when the intelligent mud pump shaft seal detection system stops working, sand and slurry which are difficult to avoid and remain on the wall of the separation cylinder 4 are dried and hardened on the wall of the separation cylinder 4 to influence the next use of the sand removal device 103, at the moment, the rotating shaft 10 is driven to rotate by the starting motor 9, the centrifugal rod 11 rotates and is thrown up, the elastic cotton 12 rubs against the wall of the separation cylinder 4 to play a role in cleaning the wall of the separation cylinder, the sand and the slurry are prevented from being dried and hardened on the wall of the separation cylinder 4 to achieve the purpose of self-cleaning; when the rotating shaft 10 rotates, the driven rod 13 is driven to rotate, the driven rod 13 strikes the marble 15, the marble 15 repeatedly strikes the wall of the separation cylinder 4 under the action of the elastic strip 14, and the wall vibrates, so that the sediment cleaned by the elastic cotton 12 is shaken off and flows out of the separation cylinder 4 along the wall of the separation cylinder, and the cleaning effect is improved; the motor 9 is started to drive the rotating shaft 10 to rotate, so that the centrifugal rod 11 rotates and is thrown up, and meanwhile, under the action of centrifugal force and spring force, the telescopic rod 17 can freely stretch and retract in the centrifugal cylinder 16, so that the elastic cotton 12 can better fit with the conical surface of the separation cylinder 4, and a better cleaning effect is achieved; the rotating shaft 10 is driven to rotate by the starting motor 9, the centrifugal rod 11 rotates and is thrown up, at the moment, under the action of centrifugal force, the gravity ball 20 slides in the sliding groove 19 and extrudes the arc-shaped elastic sheet 22, the arc-shaped elastic sheet 22 drives the adjusting rod 23 to expand outwards, the adjusting rod 23 stretches the elastic cotton 12, the contact area between the elastic cotton 12 and the wall of the separating cylinder 4 is increased, the cleaning area is increased, the shape of the elastic cotton 12 is inevitably changed when the elastic cotton 12 is stretched, the surface of the stretched elastic cotton 12 is parallel to the wall of the separating cylinder 4 as far as possible by setting the elastic cotton 12 into an arc-shaped structure, and therefore the elastic cotton is attached to the wall of the separating cylinder to a greater extent, and the cleaning effect is improved; when the arc-shaped elastic sheet 22 drives the adjusting rod 23 to open outwards, the movable plate 25 is pulled through the third spring 26, the movable plate 25 further extrudes the water bag 27, water in the water bag 27 is sprayed out of the extrusion pipe 28 through a pipeline and is sprayed onto the wall of the separating cylinder 4, so that silt cleaned by the elastic cotton 12 is wetted and flows out of the separating cylinder 4 along the wall; the movable plate 25 extrudes the water bag 27, when water in the water bag 27 is sprayed out from the extrusion pipe 28 through a pipeline, the water impacts the arc-shaped baffle 30 and is rebounded and dispersed by the arc-shaped baffle, and the rebounded water impacts the arc-shaped water diversion sheet 31 and is dispersed again, so that the spraying range of water flow is enlarged, silt cleaned by the elastic cotton 12 is wetted and flows out of the separation cylinder 4 along the cylinder wall, and the cleaning effect is further improved.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Mud pump bearing seal intellectual detection system, its characterized in that: the device comprises a mud pump shaft end water sealing system (1), an intelligent detection sensing system (2) and an intelligent processing system (3); the mud pump shaft end water sealing system (1) comprises a mud pump shaft end water sealing pump (101); a mud pump shaft end water sealing pipeline (102) is arranged on the left side of the mud pump shaft end water sealing pump (101); a sand removing device (103) is arranged above the mud pump shaft end water sealing pipeline (102), and the mud pump shaft end water sealing pipeline (102) is connected with a feed inlet (5) of the sand removing device (103); a gas removal valve (104) is arranged above the sand removing device (103); a shaft seal flushing water inlet pipe (105) is arranged on the left side of the sand removing device (103), and the shaft seal flushing water inlet pipe (105) is connected with a water outlet (6) of the sand removing device (103); the sand removing device (103) realizes self cleaning through a centrifugal rod (11) and elastic cotton (12); a mud pump impeller (106) is arranged below one end of the bottom of the mud pump shaft end water sealing pipeline (102); a mud pump shaft sleeve (107) is arranged below one end of the bottom of the shaft seal flushing water inlet pipe (105); a mud pump shaft seal (108) is arranged on the periphery of the mud pump shaft envelope (107); the mud pump shaft seals (108) are arranged in three groups and are uniformly distributed at equal intervals; and a shaft seal flushing water outlet pipe (109) is arranged on the left side of the dredge pump shaft seal (108).

2. The intelligent detecting system for the dredge pump shaft seal according to claim 1, characterized in that: the intelligent detection sensing system (2) is characterized in that a flow detection device (201) is sleeved on the outer ring of a mud pump shaft end water sealing pipeline (102) in the mud pump shaft end water sealing system (1); a pressure detection device (202) is arranged on the left of the flow detection device (201); the outer rings of the shaft seal flushing water inlet pipe (105) and the shaft seal flushing water outlet pipe (109) are sleeved with a flow detection device (201) and a temperature detection device (203); the temperature detection device (203) is a PT1000 thermal resistance temperature detection probe; the intelligent detection sensing system (2) is also provided with a dredging control system PLC remote I/O station (204) and an intelligent system computer (205).

3. The intelligent detecting system for the dredge pump shaft seal according to claim 1, characterized in that: the intelligent processing system (3) is provided with a remote I/O module (301), a flow sensor (302), a pressure transmitter (303), a temperature transmitter (304), a PLC host (305), an Ethernet switch (306), an SCADA server (307), an intelligent processing computer (308), a bridge/rake arm angle sensor (309), a yield calculation output board (310), a frequency conversion signal board (311), an SSI encoder communication line (312), a current signal acquisition loop (313) and an isolation module (314).

4. The intelligent detecting system for the dredge pump shaft seal of claim 3 is characterized in that: the remote I/O module (301) is electrically connected with the pressure transmitter (303), the temperature transmitter (304), the isolation module (314), the variable frequency signal board (311) and the yield calculation output board (310) through a current signal acquisition loop (313); the output end of the flow sensor (302) is electrically connected with the input end of the isolation module (314); the current signal acquisition loop (313) is a 4-20mA signal line; the remote I/O module (301) is electrically connected with the bridge/rake arm angle sensor (309) through an encoder SSI communication line; the output end of the remote I/O module (301) is electrically connected with the input end of the PLC host (305); the output end of the PLC host (305) is electrically connected with an Ethernet switch (306); the output end of the Ethernet switch (306) is electrically connected with the input ends of the SCADA server (307) and the intelligent processing computer (308) respectively.

5. The intelligent detecting system for the dredge pump shaft seal according to claim 1, characterized in that: the sand removing device (103) comprises a separating cylinder (4); a feed inlet (5) is formed in the upper end of the separating cylinder (4), and the feed inlet (5) is tangent to the separating cylinder (4); a water outlet (6) is arranged at the upper end of the separating cylinder (4); a mounting plate (7) is fixedly connected in the water outlet (6); a water outlet channel (8) is formed in the mounting plate (7); a motor (9) is fixedly connected to the upper side of the mounting plate (7); a rotating shaft (10) is fixedly connected to an output shaft of the motor (9), and the rotating shaft (10) penetrates through the mounting plate (7) and extends to the lower end of the separating cylinder (4); a group of centrifugal rods (11) are hinged on the rotating shaft (10); and one end of the centrifugal rod (11) far away from the rotating shaft (10) is provided with elastic cotton (12).

6. The intelligent detecting system for the dredge pump shaft seal of claim 5 is characterized in that: a driven rod (13) is fixedly connected to the rotating shaft (10); an elastic strip (14) is fixedly connected to the wall of the separation barrel (4), and the elastic strip (14) and the driven rod (13) are located at the same height; one end of the elastic strip (14) close to the driven rod (13) is fixedly connected with a marble (15).

7. The intelligent detecting system for the dredge pump shaft seal of claim 5 is characterized in that: the centrifugal bar (11) comprises a centrifugal cylinder (16); a telescopic rod (17) is connected in the centrifugal cylinder (16) in a sliding way; a first spring (18) is fixedly connected between the telescopic rod (17) and the bottom end of the centrifugal cylinder (16).

8. The intelligent detecting system for the dredge pump shaft seal according to claim 7, characterized in that: a sliding groove (19) is arranged in the telescopic rod (17); a gravity ball (20) is connected in the sliding groove (19) in a sliding manner; a second spring (21) is fixedly connected between the gravity ball (20) and the bottom end of the sliding groove (19); an arc-shaped elastic sheet (22) is fixedly connected with the opening end of the sliding groove (19); one side of the arc-shaped elastic sheet (22) far away from the sliding groove (19) is fixedly connected with a group of adjusting rods (23); one end of the adjusting rod (23) far away from the arc-shaped elastic sheet (22) is fixedly connected with the elastic cotton (12); the elastic cotton (12) is of an arc-shaped structure, and one side of the elastic cotton (12) fixedly connected with the adjusting rod (23) is an arc-shaped outer side.

9. The intelligent detecting system for the dredge pump shaft seal of claim 8, characterized in that: mounting grooves (24) are arranged in the two adjusting rods (23) on the outer side; a movable plate (25) is arranged in the mounting groove (24); a third spring (26) is fixedly connected between the movable plate (25) and the adjacent adjusting rod (23); a water bag (27) is fixedly connected between one side of the movable plate (25) close to the third spring (26) and the wall of the mounting groove (24); an extrusion pipe (28) is fixedly connected to one side, far away from the water bag (27), of the adjusting rod (23), and the extrusion pipe (28) is communicated with the water bag (27) through a pipeline.

10. The intelligent detecting system for the dredge pump shaft seal of claim 9 is characterized in that: an arc baffle (30) is fixedly connected to the outlet end of the extrusion pipe (28) through a support (29), and the arc baffle (30) extends out of the extrusion pipe (28); the end part of the outlet end of the extrusion pipe (28) is fixedly connected with an arc-shaped water distribution sheet (31).