CN203081844U - Water sealing system of excavating pump - Google Patents
Water sealing system of excavating pump Download PDFInfo
- Publication number
- CN203081844U CN203081844U CN 201220744905 CN201220744905U CN203081844U CN 203081844 U CN203081844 U CN 203081844U CN 201220744905 CN201220744905 CN 201220744905 CN 201220744905 U CN201220744905 U CN 201220744905U CN 203081844 U CN203081844 U CN 203081844U
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- water
- pump
- seal
- pipe
- dredging pump
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Abstract
The utility model discloses a water sealing system of an excavating pump, and the water sealing system of the excavating pump comprises a water supply device for supplying sealing water. The water supply device comprises a water sealing pump, wherein the input end and the output end of the water sealing pump are respectively provided with an electric valve a, the water sealing pump is communicated with four water sealing pipelines to supply the sealing water for the excavating pump, and the four water sealing pipelines include an excavating pump inlet water sealing pipe, a balance water pipe, a seal ring water sealing pipe and a main shaft sealed water sealing pipe. The pipeline of the excavating pump inlet water sealing pipe is communicated to the flush water inlet of the excavating pump. The pipeline of the balance water pipe is communicated between a pump shell and an inner container of the excavating pump. The main shaft sealed water sealing pipe is communicated with two interfaces at the side face of a sealing cavity of the excavating pump. The seal ring water sealing pipe is connected with a rubber seal ring. A seal ring water outlet pipe is arranged at the position of the rubber seal ring. A flush water discharge outlet on the pump shell is communicated with a water discharge pipe of the excavating pump. The water sealing system can supply a stable and sufficient water source for the sealing structure of the excavating pump, and can meet needs for cooling, lubrication and flushing.
Description
Technical field
The utility model relates to a kind of water shutoff system, a kind of specifically pump class water shutoff system.
Background technique
Dredging pump in the large-scale cabin comprises pallet body, and the pallet body front end is pump case fixedly, pump cover is installed in the pump case both sides, the inner conformal of pump case is provided with inner bag, and liner plate and rear lining plate before the rear and front end of inner bag is separately installed with are provided with impeller in the cavity of inner bag and preceding liner plate and rear lining plate formation.Also fixedly mount bearing unit on the pallet body, bearing unit is used to support the dredging pump main shaft, and impeller is installed in front-end of spindle, and the impeller rear side is provided with rear lining plate.The main shaft back segment of rear lining plate opposite side is provided with the Seal cage of built-in black box.
Dredging pump generally is used for dredging operation under water, work under bad environment, dredging pump is clashed into or other reason causes vibration often at work, around pump is the solid particles such as silt that stir, solid particle enters the main shaft position easily, thereby damage main shaft and black box, simultaneously for not allowing the mud in the pump leak by the gap between pump shaft and the black box, all need to feed certain water shutoff to dredging pump, when Sealing is passed through in water shutoff, water can also prevent axle and black box direct friction herein along with the high speed rotating of main shaft forms moisture film between axle and black box.When losing water shutoff, the high pressure in the pump can make mud leak by the gap between pump shaft and the black box, influences the use of dredging pump; The main shaft and the gap between the black box of high speed rotating are very little, and when losing sealing water, axle rubs with black box, and the feed water pump vibration is strengthened, and also can cause the stoppage in transit of equipment when serious.
The model utility content
The utility model technical issues that need to address provide a kind of dredging pump water shutoff system, and stable, sufficient water source can be provided for the sealing configuration of dredging pump.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
Dredging pump water shutoff system, being included as dredging pump provides the water supply installation at water shutoff water source, described water supply installation comprises the water shutoff pump, the input end of water shutoff pump and output terminal are provided with mortor operated valve a, connection traffic table a successively on the water pipe of water shutoff pump, pressure transducer a and check valve, four the pipeline connection dredging pumps of the output terminal of water pipe by being arranged in parallel, described four pipelines are dredging pump import seal water pipe, the main shaft seal seal water pipe, be used for the balancing pipeline of conveying high pressure water between dredging pump pump case and inner bag and the seal ring seal water pipe that is used for carrying lubricated water to seal ring;
The end of described dredging pump import seal water pipe is communicated with two sparge water water intakes of dredging pump respectively, the end of balancing pipeline and dredging pump pump case are communicated with cavity between the inner bag, the end of main shaft seal seal water pipe is connected with two interfaces on the dredging pump Seal cage side, and the end of seal ring seal water pipe is communicated with the access port at dredging pump rubber seal place; A relative side with the rubber seal access port is provided with the seal ring outlet pipe on the described dredging pump, the place, sparge water dewatering outlet that described sparge water water intake below is provided with also is provided with the dredging pump offlet that is used for residuary waters in the emptying dredging pump pump housing, and described dredging pump offlet is controlled break-make by valve.
Further improvement of the utility model is: described seal ring seal water pipe is provided with grit water separator, and the sand removing hole of grit water separator is connected with the main shaft seal seal water pipe by three-way pipe.
Further improvement of the utility model is: be provided for regulating the mortor operated valve b of water shutoff flow size in the pipeline of main shaft seal seal water pipe in the main shaft seal seal water pipe between described dredging pump and the three-way pipe, between the interface of mortor operated valve b and dredging pump Seal cage side flowmeter b and pressure transducer b be set.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The sealing configuration that the utility model can be dredging pump provides stable, sufficient water source, the needs that satisfy cooling, lubricate, wash.When dredging pump is produced use, rotating speed or pressure signal according to the dredging pump feedback, the water shutoff pump is carried out VFC, regulate the rotating speed of water shutoff pump, and then the flow and the pressure of water shutoff in the adjustment water shutoff system, make its flow and pressure both can satisfy the requirement of water shutoff system, can save the energy again, reduce the wastage.
Flowmeter a and pressure transducer b that water shutoff pump place is provided with have the teledata interface, can show the flow and the pressure of water shutoff system, make things convenient for the staff that whole water shutoff system is carried out remote monitoring.When the flow of water shutoff system or pressure take place abnormal signal to be fed back to the dredging pump control system when unusual, in time take protective measure, guarantee production safety.
Grit water separator is used for separating the impure water shutoff of seal ring seal water pipe pipeline, clean water after grit water separator separates is used for the lubricated and cooling of seal ring, impurity particle wearing and tearing seal ring in the anti-sealing in the working life of prolongation seal ring, guarantees sealing effect.
Mortor operated valve b is arranged in the main shaft seal water shutoff pipeline, be used for regulating the water shutoff flow of main shaft seal water shutoff pipeline, the flowmeter b and the pressure transducer b feedback data that are provided with between the interface by monitoring mortor operated valve b and dredging pump Seal cage side, the water shutoff flow that guarantees to offer main shaft seal water shutoff pipeline are not less than 10% of water shutoff total discharge in the water supply installation.
Description of drawings
Fig. 1 is the schematic diagram of dredging pump water shutoff system;
Fig. 2 is the water intake of dredging pump sparge water and the distribution schematic diagram of dewatering outlet.
Wherein, 1, the water shutoff pump, 2, mortor operated valve a, 3, flowmeter a, 4, pressure transducer a, 5, check valve, 6, the sparge water water intake, 7, grit water separator, 8, mortor operated valve b, 9, dredging pump, 10, the sparge water dewatering outlet, 11, flowmeter b, 12, pressure transducer b;
A, dredging pump import seal water pipe, B, dredging pump offlet, C, balancing pipeline, D, main shaft seal seal water pipe, E, seal ring seal water pipe, F, seal ring outlet pipe;
Direction shown in the arrow is the flow direction of water shutoff among the figure.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further details:
Dredging pump water shutoff system as shown in Figure 1, is included as the water supply installation that dredging pump 9 provides the water shutoff water source.Described water supply installation comprises water shutoff pump 1, and the input end of water shutoff pump 1 and output terminal all are connected with mortor operated valve a2.On the water pipe of water shutoff pump 1 output terminal, also be connected with flowmeter 3, pressure transducer 4 and check valve 5 respectively in turn.According to the data that flowmeter a3 and pressure transducer a4 record, can adjust the rotating speed of water shutoff pump 1, and then regulate the pressure and the flow of water shutoff system.In the using process of dredging pump, the working pressure that the intrasystem pressure of water shutoff should be higher than dredging pump adds 0.1MPa.
Water shutoff pump 1 is used to four pipelines that water shutoff is provided: described four pipelines are arranged in parallel, and are respectively dredging pump import seal water pipe A, balancing pipeline C, seal ring seal water pipe E and main shaft seal seal water pipe D.Article four, pipeline is communicated with the output terminal of water shutoff pump 1 water pipe respectively.
The pump case of dredging pump is provided with near two sparge water water intakes 6 of suction port that are positioned at dredging pump 9, and the end of dredging pump import seal water pipe A is communicated with two sparge water water intakes 6 of dredging pump respectively.The water shutoff of carrying among the dredging pump import seal water pipe A is used for preventing that the mud that dredging pump is discharged from entering between impeller and the pump cover, reduces the wearing and tearing of mud to pump cover and impeller.
The end of balancing pipeline C and dredging pump pump case are communicated with cavity between the inner bag, are used to carry the high pressure water that needs between dredging pump pump case and inner bag, guarantee dredging pump when operation, and the pressure of the inside and outside liquid of inner bag is in state of equilibrium.
The rubber seal place of dredging pump black box is provided with water shutoff access port and water shutoff outlet.The end of seal ring seal water pipe E is communicated with the water shutoff access port of rubber seal, and seal ring outlet pipe F is communicated with the water shutoff outlet of rubber seal.Be provided with grit water separator 7 in the pipeline of seal ring seal water pipe E, the sand removing hole of grit water separator 7 is communicated with main shaft seal seal water pipe D by three-way pipe; The water shutoff that water shutoff pump 1 provides flows into the input end of grit water separator 7, after grit water separator 7 purifies, the clean water that is separated flows out from the water purification mouth of grit water separator 7 output terminals, reenter in the pipeline of seal ring seal water pipe E, final clean water flows into the rubber seal place, is used for lubricated and coolant seal assembly.The sewage of grit water separator 7 filterings enters among the main shaft seal seal water pipe D by sand removing hole.
The end of main shaft seal seal water pipe D is communicated with the interface of the Seal cage side of dredging pump impeller rear end, is used to reduce mud to impeller and rear lining plate wearing and tearing, can also play the effect of cooling dredging pump simultaneously.Be disposed with mortor operated valve b8, flowmeter b11 and pressure transducer b12 among the main shaft seal seal water pipe D between three-way pipe and dredging pump.Mortor operated valve b8 is used for regulating the size of the pipeline water shutoff flow of main shaft seal seal water pipe D, and by regulating mortor operated valve b8, the pipeline water shutoff flow that guarantees main shaft seal seal water pipe D is not less than 10% of water shutoff total discharge in the water shutoff system.Flowmeter b11 and pressure transducer b12 are used for measuring the pressure and the flow of the pipeline of main shaft seal seal water pipe D.
Below sparge water water intake 6 on the pump case of dredging pump, be provided with sparge water dewatering outlet 10, sparge water water intake 6 and sparge water dewatering outlet 10 position views are as shown in Figure 2,10 places, sparge water dewatering outlet are communicated with dredging pump offlet B, be provided with valve among the dredging pump offlet B, by the break-make of valve control dredging pump offlet B pipeline.When dredging pump need overhaul or do not use for a long time, can open valve, the residuary waters in the emptying dredging pump.
Claims (3)
1. dredging pump water shutoff system, it is characterized in that: be included as the water supply installation that dredging pump (9) provides the water shutoff water source, described water supply installation comprises water shutoff pump (1), the input end and the output terminal of water shutoff pump (1) are provided with mortor operated valve a(2), connection traffic table a(3 successively on the water pipe of water shutoff pump (1)), pressure transducer a(4) and check valve (5), four the pipeline connection dredging pumps of the output terminal of water pipe by being arranged in parallel, described four pipelines are dredging pump import seal water pipe (A), main shaft seal seal water pipe (D), be used for the balancing pipeline (C) of conveying high pressure water between dredging pump pump case and inner bag and the seal ring seal water pipe (E) that is used for carrying lubricated water to seal ring;
The end of described dredging pump import seal water pipe (A) is communicated with two sparge water water intakes (6) of dredging pump respectively, the end of balancing pipeline (C) and dredging pump pump case are communicated with cavity between the inner bag, the end of main shaft seal seal water pipe (D) is connected with two interfaces on the dredging pump Seal cage side, and the end of seal ring seal water pipe (E) is communicated with the access port at dredging pump rubber seal place; A relative side with the rubber seal access port is provided with seal ring outlet pipe (F) on the described dredging pump, the dredging pump offlet (B) that is used for residuary waters in the emptying dredging pump pump housing is located also to be provided with in the sparge water dewatering outlet (10) that described sparge water water intake (6) below is provided with, and described dredging pump offlet (B) is by valve control break-make.
2. dredging pump water shutoff according to claim 1 system, it is characterized in that: described seal ring seal water pipe (E) is provided with grit water separator (7), and the sand removing hole of grit water separator (7) is connected with main shaft seal seal water pipe (D) by three-way pipe.
3. dredging pump water shutoff according to claim 2 system, it is characterized in that: the mortor operated valve b(8 that is provided for regulating water shutoff flow size in the pipeline of main shaft seal seal water pipe (D) in the main shaft seal seal water pipe (D) between described dredging pump and the three-way pipe), mortor operated valve b(8) and the interface of dredging pump Seal cage side between flowmeter b(11 is set) and pressure transducer b(12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744905 CN203081844U (en) | 2012-12-31 | 2012-12-31 | Water sealing system of excavating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744905 CN203081844U (en) | 2012-12-31 | 2012-12-31 | Water sealing system of excavating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081844U true CN203081844U (en) | 2013-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744905 Expired - Fee Related CN203081844U (en) | 2012-12-31 | 2012-12-31 | Water sealing system of excavating pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN203081844U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014959A (en) * | 2016-07-08 | 2016-10-12 | 广州文冲船厂有限责任公司 | Monitoring system of shaft seal of mechanical pump |
| CN106762795A (en) * | 2016-12-13 | 2017-05-31 | 上海交通大学 | A kind of new seawater cooling of dredger and dredge pump water shutoff system |
| CN108252964A (en) * | 2018-01-23 | 2018-07-06 | 威乐(中国)水泵系统有限公司 | A kind of mechanical seal rinsing system |
| CN108698094A (en) * | 2015-12-11 | 2018-10-23 | 艾迪宝克思公司 | Flow equilibrium in food processor cleaning systems |
| CN108825519A (en) * | 2018-04-28 | 2018-11-16 | 广州文冲船厂有限责任公司 | A kind of dredge pump operation and maintenance method for early warning |
| CN110332130A (en) * | 2019-07-17 | 2019-10-15 | 福建福清核电有限公司 | A kind of online device and method for improving reactor coolant pump shafting stability |
| CN113202810A (en) * | 2021-05-11 | 2021-08-03 | 中交广州航道局有限公司 | Mud pump shaft seal intelligent detection system |
-
2012
- 2012-12-31 CN CN 201220744905 patent/CN203081844U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108698094A (en) * | 2015-12-11 | 2018-10-23 | 艾迪宝克思公司 | Flow equilibrium in food processor cleaning systems |
| CN108698094B (en) * | 2015-12-11 | 2023-02-28 | 泰而勒商业食品服务有限公司 | Flow balancing in a food processor cleaning system |
| US11712047B2 (en) | 2015-12-11 | 2023-08-01 | Taylor Commercial Foodservice, Llc | Flow balancing in food processor cleaning system |
| CN106014959A (en) * | 2016-07-08 | 2016-10-12 | 广州文冲船厂有限责任公司 | Monitoring system of shaft seal of mechanical pump |
| CN106762795A (en) * | 2016-12-13 | 2017-05-31 | 上海交通大学 | A kind of new seawater cooling of dredger and dredge pump water shutoff system |
| CN108252964A (en) * | 2018-01-23 | 2018-07-06 | 威乐(中国)水泵系统有限公司 | A kind of mechanical seal rinsing system |
| CN108825519A (en) * | 2018-04-28 | 2018-11-16 | 广州文冲船厂有限责任公司 | A kind of dredge pump operation and maintenance method for early warning |
| CN110332130A (en) * | 2019-07-17 | 2019-10-15 | 福建福清核电有限公司 | A kind of online device and method for improving reactor coolant pump shafting stability |
| CN113202810A (en) * | 2021-05-11 | 2021-08-03 | 中交广州航道局有限公司 | Mud pump shaft seal intelligent detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |