CN102913759A - Switching buffer device for different pressure media in pipeline transportation and pipeline transportation system - Google Patents
Switching buffer device for different pressure media in pipeline transportation and pipeline transportation system Download PDFInfo
- Publication number
- CN102913759A CN102913759A CN2012103893019A CN201210389301A CN102913759A CN 102913759 A CN102913759 A CN 102913759A CN 2012103893019 A CN2012103893019 A CN 2012103893019A CN 201210389301 A CN201210389301 A CN 201210389301A CN 102913759 A CN102913759 A CN 102913759A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- nitrogen
- slurry pipeline
- slurry
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to a switching buffer device for different pressure media in pipeline transportation and a pipeline transportation system. The switching buffer device is connected onto a slurry pipeline (11) and is a pulsation buffering nitrogen tank (7), and the pulsation buffering nitrogen tank (7) comprises a tank shell (8) and a nitrogen bag (9). When pressure of media in the slurry pipeline (11) increases, the nitrogen bag (9) is compressed, and pressure of nitrogen in the compressed nitrogen bag is increased. When pressure of media in the slurry pipeline (11) decreases, pressure accumulated in the nitrogen bag (9) is released and compensated to the media in the slurry pipeline (11). Energy compensation and buffering are achieved in switching process of the long-distance slurry pipeline by the pulsation buffering nitrogen tank, water hammer effect generated by media of different pressures is restrained and eliminated effectively, violent vibration of a slurry pipeline system is avoided, and devices of the slurry pipeline system and a feed pump and the like are protected.
Description
Technical field
The present invention relates to a kind of switching damping device and pipeline, especially relate to a kind of switching buffer system and pipeline for the iron ore concentrate pipeline conveying.
Background technique
It is emerging and industry new and high technology that long-distance iron ore concentrate pipeline is carried, and also is the bright spot of low-carbon (LC), green economy.The long-distance slurry pipeline is carried and is required the slurry batch feed, upward criticizes and need between lower batch prevent pipeline overvoltage, obstruction according to the interspersed some water of technological requirement.
As shown in Figure 1, be long-distance slurry pipeline tradition delivery technology figure, description of the process:
When 1, transportation media of slurry pipeline is iron ore concentrate, stirring chest 1 stirs slurry, by opening defeated ore deposit valve 2, close water-delivery valve 3, opening feeding pump inlet valve 4, feeding pump 6 is delivered to next stage with slurry with the slurry input suction booster that stirs after the suction booster pressurization.
When 2, transportation media of slurry pipeline is water, by opening water-delivery valve 3, close defeated ore deposit valve 2, opening feeding pump inlet valve 4, the process water of clear water reserviors 5 is delivered to feeding pump 6 by water pump, and feeding pump 6 is delivered to suction booster again, after the suction booster pressurization water is delivered to next stage.
When 3, the Slurry Pipeline Transportation pattern is switched, minute following two kinds of situations:
(1) slurry is cut water, namely in the situation that transfer ore pulp switches to conveying water.The valve operation step: 1. the process water of clear water reserviors 5 is delivered to water-delivery valve 3 by water pump (not marking among the figure); 2. water-delivery valve 3 changes open mode into by closed condition; 3. defeated ore deposit valve 2 changes closed condition into by open mode; 4. feeding pump inlet valve 4 still stays open state.
(2) water is cut slurry, namely in the situation that carry water to switch to transfer ore pulp.The valve operation step: 1. defeated ore deposit valve 2 changes open mode into by closed condition; 2. water-delivery valve 3 changes closed condition into by open mode; 3. feeding pump inlet valve 4 still stays open state; 4. the process water stop supplies of clear water reserviors 5.
The handoff procedure of two kinds of situations, after adjusting defeated ore deposit valve, water-delivery valve, feeding pump inlet valve, feeding pump 6 is delivered to suction booster, after the suction booster pressurization water/slurry is delivered to next stage.
" switching of Slurry Pipeline Transportation pattern " is frequent operation and extremely important operating procedure.
Long-distance slurry pipeline tradition delivery technology is of crucial importance, along with the enforcement of production process, facts have proved that it has following defective:
1, during the Slurry Pipeline Transportation ore pulp, because feeding pump 6 inlet pressures are closely related with stirring chest 1 liquid level, and stirring chest 1 liquid level can fluctuate with output, rhythm of production, and this causes feeding pump 6 inlet pressures to follow fluctuation.Simultaneously, when stirring chest 1 was in low liquid level operation for a long time, feeding pump 6 inlet pressures were on the low side.Feeding pump 6 inlet pressures fluctuation meeting excessive, on the low side causes feeding pump 6 easily worn parts (common easily worn part: impeller, spiral case, liner plate etc.) wearing and tearing aggravation, shortens its working life.
2, switch mode relates to the change of defeated ore deposit valve 2 and water-delivery valve 3 valve states, in the change process, rapid variation occurs and can cause slurry pipeline pressure to fluctuate widely in flow rate of liquid, and exchanging of handoff procedure slurry and process water agitated impact and further aggravated fluctuating widely of slurry pipeline pressure.This phenomenon is called as " water hammer effect ".
Water hammer effect causes the slurry pipeline system sharply to shake, destroy slurry pipeline, and causes ductwork pressure reduction etc.The slurry pipeline system sharply shakes, pressure fluctuates widely has further aggravated the wearing and tearing of feeding pump 6 easily worn parts, very harmful.
Summary of the invention
The present invention has designed a kind of switching damping device and pipeline of pipeline transport different pressures medium, and it has solved following technical problem:
(1) Slurry Pipeline Transportation ore pulp, stirring chest level fluctuation or liquid level are on the low side, cause feeding pump inlet pressure fluctuation excessive or on the low sidely cause feeding pump easily worn part wearing and tearing aggravation;
(2) the slurry pipeline system strenuous vibration that caused by " water hammer effect " of slurry pipeline handoff procedure.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of switching damping device of pipeline transport different pressures medium, connect the switching damping device at slurry pipeline (11), described switching damping device is pulsation damping nitrogen pot (7), and described pulsation damping nitrogen pot (7) comprises ladle bowl (8) and nitrogen bag (9); When pressure medium in the slurry pipeline (11) increases, nitrogen bag (9) compressed and so that nitrogen pressure wherein increase; When the pressure medium in the slurry pipeline (11) reduced, the pressure of nitrogen bag (9) savings was released and compensates to the medium in the slurry pipeline (11).
Further, nitrogen bag (9) is comprised of diaphragm of rubber and nitrogen.
Further, switching damping device is communicated with slurry pipeline (11) by interface unit (10).
A kind of pipeline, comprise stirring chest (1), clear water reserviors (5) and feeding pump (6), the pipeline at output of stirring chest (1), the pipeline at output of clear water reserviors (5) and feeding pump (6) input end slurry pipeline (11) connect into three-port structure, defeated ore deposit valve (2) is arranged on the pipeline at output of stirring chest (1), water-delivery valve (3) is arranged on the pipeline at output of clear water reserviors (5), feeding pump inlet valve (4) is arranged on input end slurry pipeline (11), goes back the switching damping device of connecting tube transportation different pressures medium at feeding pump (6) input end slurry pipeline (11).Connect the switching damping device at slurry pipeline (11), described switching damping device is pulsation damping nitrogen pot (7), and described pulsation damping nitrogen pot (7) comprises ladle bowl (8) and nitrogen bag (9); When pressure medium in the slurry pipeline (11) increases, nitrogen bag (9) compressed and so that nitrogen pressure wherein increase; When the pressure medium in the slurry pipeline (11) reduced, the pressure of nitrogen bag (9) savings was released and compensates to the medium in the slurry pipeline (11).
Further, the pipeline at output of stirring chest (1) is connected to the bottom of stirring chest (1).
Further, feeding pump (6) pipeline at output is connected with suction booster.
The switching damping device of this pipeline transport different pressures medium and pipeline are compared with traditional delivery technology system, have following beneficial effect:
(1) pulsation damping nitrogen pot of the present invention plays energy compensating, buffer function in long-distance slurry pipeline handoff procedure; the water hammer effect that the different pressures medium produces in establishment, the elimination handoff procedure; avoid slurry pipeline system strenuous vibration, the equipment such as protection slurry pipeline system and feeding pump.
(2) in the pipeline of the present invention during the Slurry Pipeline Transportation slurry; stirring chest level fluctuation or be in for a long time low liquid level; cause the fluctuation of feeding pump inlet pressure excessive or on the low side; thereby cause feeding pump easily worn part wearing and tearing aggravation; the phenomenons such as the fluctuation of the energy compensating of pulsation damping nitrogen pot, buffer function establishment feeding pump inlet pressure is excessive; the protection feeding pump prolongs its working life.
Description of drawings
Fig. 1 is long-distance slurry pipeline transportation process figure of the prior art;
Fig. 2 is that the present invention is used for the switching buffer system schematic diagram that iron ore concentrate pipeline is carried;
Fig. 3 is the structural representation of pulsation damping nitrogen pot among the present invention.
Description of reference numerals:
1-stirring chest; 2-defeated ore deposit valve; 3-water-delivery valve; 4-feeding pump inlet valve; 5-clear water reserviors; 6-feeding pump (centrifugal); 7-pulsation damping nitrogen pot; 8-ladle bowl; 9-nitrogen bag; 10-interface unit; 11-slurry pipeline.
Embodiment
Below in conjunction with Fig. 2 and Fig. 3, the present invention will be further described:
As shown in Figure 2, a kind of pipeline, comprise stirring chest 1, clear water reserviors 5 and feeding pump 6, the pipeline at output of the pipeline at output of stirring chest 1, clear water reserviors 5 and feeding pump 6 input end slurry pipelines 11 connect into three-port structure, defeated ore deposit valve 2 is arranged on the pipeline at output of stirring chest 1, water-delivery valve 3 is arranged on the pipeline at output of clear water reserviors 5, feeding pump inlet valve 4 is arranged on input end slurry pipeline 11, goes back the switching damping device of connecting tube transportation different pressures medium at feeding pump 6 input end slurry pipelines 11.Connect this at slurry pipeline 11 and switch damping device, switching damping device is pulsation damping nitrogen pot 7, and pulsation damping nitrogen pot 7 comprises ladle bowl 8 and nitrogen bag 9; When pressure medium in the slurry pipeline 11 increases, nitrogen bag 9 compressed and so that nitrogen pressure wherein increase; When the pressure medium in the slurry pipeline 11 reduced, the pressure of nitrogen bag 9 savings was released and compensates to the medium in the slurry pipeline 11.
As shown in Figure 3, a kind of switching damping device of pipeline transport different pressures medium connects the switching damping device at slurry pipeline 11, and described switching damping device is pulsation damping nitrogen pot 7, and described pulsation damping nitrogen pot 7 comprises ladle bowl 8 and nitrogen bag 9; When pressure medium in the slurry pipeline 11 increases, nitrogen bag 9 compressed and so that nitrogen pressure wherein increase; When the pressure medium in the slurry pipeline 11 reduced, the pressure of nitrogen bag 9 savings was released and compensates to the medium in the slurry pipeline 11.
Be filled with the nitrogen of certain pressure in the nitrogen bag, when slurry pipeline system instantaneous pressure increases, the coated compression of nitrogen, the energy in the slurry pipeline system changes compression energy into and stores, and plays buffer function; When slurry pipeline system instantaneous pressure reduced, the progressive reinstatement of compressed nitrogen bag changed compression energy into the energy such as air pressure and discharges, and again compensates to this system.Effective like this slurry pipeline system pressure fluctuating range of dwindling guarantees the whole system pressure stability.
In addition, the pulsation damping nitrogen pot is connected with slurry pipeline 11 closely by interface unit 10, when the Slurry Pipeline Transportation ore pulp, the energy snubber of pulsation damping nitrogen pot, compensating action can fine minimizing stirring chest liquid level change the feeding pump inlet pressure fluctuation impact excessive or on the low side that brings, protection feeding pump easily worn part; When the slurry pipeline system was in handoff procedure, the energy snubber of pulsation damping nitrogen pot, compensating action can establishments, eliminate the water hammer effect of switch mode, avoid slurry pipeline system strenuous vibration, the equipment such as protection slurry pipeline system and feeding pump.
Its core component nitrogen bag of pulsation damping nitrogen pot that the present invention introduces is comprised of the nitrogen of diaphragm of rubber and certain pressure.When slurry pipeline system instantaneous pressure increases, the deformation of nitrogen rubberizing barrier film, nitrogen is compressed, and the energy in the slurry pipeline system changes compression energy into and stores, and plays buffer function; When slurry pipeline system instantaneous pressure reduced, compressed nitrogen and the progressive reinstatement of diaphragm of rubber deformation changed compression energy into the energy such as air pressure and discharge, and again compensate to this system.This function has been eliminated stirring chest liquid level of the prior art and has been changed the slurry pipeline system pressure fluctuation of bringing, and has also eliminated slurry pipeline system pressure fluctuation that handoff procedure of the prior art " water hammer effect " brings and the phenomenon of strenuous vibration.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obvious realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; or without improving design of the present invention and technological scheme are directly applied to other occasion, all in protection scope of the present invention.
Claims (6)
1. the switching damping device of a pipeline transport different pressures medium, it is characterized in that: connect at slurry pipeline (11) and switch damping device, described switching damping device is pulsation damping nitrogen pot (7), and described pulsation damping nitrogen pot (7) comprises ladle bowl (8) and nitrogen bag (9); When pressure medium in the slurry pipeline (11) increases, nitrogen bag (9) compressed and so that nitrogen pressure wherein increase; When the pressure medium in the slurry pipeline (11) reduced, the pressure of nitrogen bag (9) savings was released and compensates to the medium in the slurry pipeline (11).
2. the switching damping device of described pipeline transport different pressures medium according to claim 1, it is characterized in that: nitrogen bag (9) is comprised of diaphragm of rubber and nitrogen.
3. the switching damping device of described pipeline transport different pressures medium according to claim 1 is characterized in that: switch damping device and be communicated with slurry pipeline (11) by interface unit (10).
4. pipeline, comprise stirring chest (1), clear water reserviors (5) and feeding pump (6), the pipeline at output of stirring chest (1), the pipeline at output of clear water reserviors (5) and feeding pump (6) input end slurry pipeline (11) connect into three-port structure, defeated ore deposit valve (2) is arranged on the pipeline at output of stirring chest (1), water-delivery valve (3) is arranged on the pipeline at output of clear water reserviors (5), feeding pump inlet valve (4) is arranged on input end slurry pipeline (11), it is characterized in that: the switching damping device that also connects any pipeline transport different pressures medium in the claim 1 to 3 on feeding pump (6) input end slurry pipeline (11).
5. described pipeline according to claim 4, it is characterized in that: the pipeline at output of stirring chest (1) is connected to the bottom of stirring chest (1).
6. any one described pipeline in 5 according to claim 1, it is characterized in that: feeding pump (6) pipeline at output is connected with suction booster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389301.9A CN102913759B (en) | 2012-10-15 | 2012-10-15 | Switching buffer device for different pressure media in pipeline transportation and pipeline transportation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389301.9A CN102913759B (en) | 2012-10-15 | 2012-10-15 | Switching buffer device for different pressure media in pipeline transportation and pipeline transportation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102913759A true CN102913759A (en) | 2013-02-06 |
| CN102913759B CN102913759B (en) | 2014-12-10 |
Family
ID=47612252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210389301.9A Active CN102913759B (en) | 2012-10-15 | 2012-10-15 | Switching buffer device for different pressure media in pipeline transportation and pipeline transportation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102913759B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939745A (en) * | 2014-04-24 | 2014-07-23 | 云南大红山管道有限公司 | Slurry conveying pipeline system capable of effectively restraining vibration |
| CN105222945A (en) * | 2015-09-07 | 2016-01-06 | 苏州莱测检测科技有限公司 | A kind of pipe interior segmentation wind pressure detection device |
| CN106813103A (en) * | 2017-01-22 | 2017-06-09 | 中国海洋石油总公司 | A kind of process and device for preventing water attack for LNG pipelines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201269407Y (en) * | 2008-10-06 | 2009-07-08 | 洛阳栾川钼业集团股份有限公司 | Pressure regulation apparatus for ore slurry delivery high-pressure pipe |
| CN201513668U (en) * | 2009-05-27 | 2010-06-23 | 灵宝市金源矿业有限责任公司 | Air buffer plug for stabilizing pressure of pipes |
| CN201705654U (en) * | 2010-05-12 | 2011-01-12 | 云南大红山管道有限公司 | Cooling device of feeding pumps for ore pulp conveying |
| CN201757245U (en) * | 2010-05-25 | 2011-03-09 | 云南大红山管道有限公司 | Buffer unit for conveying main pump of slurry pipeline |
-
2012
- 2012-10-15 CN CN201210389301.9A patent/CN102913759B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201269407Y (en) * | 2008-10-06 | 2009-07-08 | 洛阳栾川钼业集团股份有限公司 | Pressure regulation apparatus for ore slurry delivery high-pressure pipe |
| CN201513668U (en) * | 2009-05-27 | 2010-06-23 | 灵宝市金源矿业有限责任公司 | Air buffer plug for stabilizing pressure of pipes |
| CN201705654U (en) * | 2010-05-12 | 2011-01-12 | 云南大红山管道有限公司 | Cooling device of feeding pumps for ore pulp conveying |
| CN201757245U (en) * | 2010-05-25 | 2011-03-09 | 云南大红山管道有限公司 | Buffer unit for conveying main pump of slurry pipeline |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939745A (en) * | 2014-04-24 | 2014-07-23 | 云南大红山管道有限公司 | Slurry conveying pipeline system capable of effectively restraining vibration |
| CN105222945A (en) * | 2015-09-07 | 2016-01-06 | 苏州莱测检测科技有限公司 | A kind of pipe interior segmentation wind pressure detection device |
| CN106813103A (en) * | 2017-01-22 | 2017-06-09 | 中国海洋石油总公司 | A kind of process and device for preventing water attack for LNG pipelines |
| CN106813103B (en) * | 2017-01-22 | 2018-08-24 | 中国海洋石油集团有限公司 | A kind of process and device preventing water attack for LNG pipelines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102913759B (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102913759B (en) | Switching buffer device for different pressure media in pipeline transportation and pipeline transportation system | |
| CN105221407A (en) | A kind of hydraulic end of plunger pump assembly | |
| CN202834773U (en) | Switchover buffer device of different pressure medium transport pipeline and pipeline transport system | |
| CN201093120Y (en) | Throttling hole plate group | |
| CN207620084U (en) | A kind of wastewater from chemical industry blow-off line | |
| CN210599590U (en) | Centrifugal pump with automatic exhaust function | |
| CN201757076U (en) | Underflow pump with flexible connecting device | |
| CN202182053U (en) | Improved front-mount type gas-water separator of water ring vacuum pump controlled by solenoid valve | |
| CN210567535U (en) | Steam buffer device | |
| CN213016699U (en) | Air suction valve plate and valve plate exhaust structure for refrigerator compressor | |
| CN210239958U (en) | Pulp supply device of ore dressing tailing water diaphragm pump | |
| CN209325236U (en) | A kind of rubber soft joint of flexible abrasionproof | |
| CN209539385U (en) | A kind of liquid sucking-discharging structure, emulsion pump and hydraulic system | |
| CN205089589U (en) | Fluid end assembly of plunger pump | |
| CN208474776U (en) | A kind of acidproof welded still pipe | |
| CN220337049U (en) | Noise reduction buffer device for hose pump outlet | |
| CN209041093U (en) | A kind of double cylinder double acting diaphragm pump nitrogen packet support device | |
| CN105840946A (en) | Device and method for inhibiting delivery fluctuation pressure of finished oil pipeline | |
| CN101603524B (en) | Undisturbed switching method for operating modes of multi-stage pump station and energy dissipater thereof | |
| CN207278495U (en) | A kind of connection structure of membrane pump feeding pipe and clack box | |
| CN201343550Y (en) | Alloy feeding buffer structure | |
| CN101832298A (en) | Underflow pump with soft connection device | |
| CN202612044U (en) | Vacuum pump shock absorption connecting pipe | |
| CN205762270U (en) | Vibrating screen dust sealing device | |
| CN109368275A (en) | A kind of discharge valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |