EP3084213A1 - Pompe à boues chaudes - Google Patents

Pompe à boues chaudes

Info

Publication number
EP3084213A1
EP3084213A1 EP14806242.5A EP14806242A EP3084213A1 EP 3084213 A1 EP3084213 A1 EP 3084213A1 EP 14806242 A EP14806242 A EP 14806242A EP 3084213 A1 EP3084213 A1 EP 3084213A1
Authority
EP
European Patent Office
Prior art keywords
line
pendulum
membrane
pump
length
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.)
Withdrawn
Application number
EP14806242.5A
Other languages
German (de)
English (en)
Inventor
Norbert Jäger
Andreas KARWOWSKI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mhwirth GmbH
Original Assignee
Mhwirth GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mhwirth GmbH filed Critical Mhwirth GmbH
Publication of EP3084213A1 publication Critical patent/EP3084213A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/04—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being hot or corrosive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/141—Intermediate liquid piston between the driving piston and the pumped liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/20—Filtering

Definitions

  • the invention relates to a hot slurry pump.
  • a hot slurry pump With Schlannnn particular thick material is referred to in the context of this document, ie any mixture of liquid and solid components. It may, for example, be mud in earthworks or the like.
  • Such sludge pumps are designed for continuous use and must work reliably over long periods to years as trouble-free as an exchange of a defective sludge pump is regularly associated with a considerable amount of work and time.
  • Hot slurry pumps are already known.
  • DE 19 782 185 C2 shows a hot slurry pump.
  • a disadvantage of known hot slurry pumps is that they are expensive to produce, require a lot of space, have no long service life or are maintenance-intensive.
  • the invention has set itself the task of creating a hot sludge pump, which is improved at least in terms of one of the disadvantages mentioned.
  • the hot slurry pump according to the invention has at least one working space.
  • working space refers in particular to the space in which the sludge is sucked in and out of which Mud is pushed out.
  • Each working space preferably comprises at least one pair of valves, preferably an inlet valve and an outlet valve.
  • the hot slurry pump also includes at least one displacement chamber.
  • the displacer is immovable to the working space.
  • both the displacement, and the working space are permanently installed, so not arranged on a cart, carriage or the like.
  • the displacement chamber comprises a displacement element.
  • the displacement element may be a piston.
  • the displacer is a diaphragm actuated by a piston.
  • the hot slurry pump therefore preferably comprises a piston diaphragm pump. It is preferably a flat membrane.
  • the hot slurry pump has a - preferably the working space with the Verdrängerraum wirkverbindende - pendulum.
  • pendulum liquid oscillates back and forth and the pressure changes pulsating between the suction and pressure levels.
  • the pendulum liquid may at least include mud.
  • a separator is arranged in the pendulum line. The separator separates the hot, pumped sludge from cooler shuttle liquid. As a result, the temperature load on the membrane is reduced.
  • the separator may be a separating piston.
  • the at least one pendulum line does not comprise a cooling section or a cooling section is provided whose length is less than three meters.
  • the length of the cooling section is preferably less than two meters or less than one meter.
  • the pendulum line expands, for example when the pump is started up and the associated heating of the pendulum line by the pendulum liquid. This expansion leads to difficulties in known hot slurry pumps. For example, a compensator compensating for this thermal change in length must be provided, or other measures must be taken to prevent unduly high flange voltages from occurring. It has been found that only reasonable flange voltages occur when the shuttle line does not include a cooling section or the length of the cooling section is less than three meters, preferably less than two meters, more preferably less than one meter. Because the change in length then falls only slightly.
  • cooling path refers in particular to a route which serves exclusively or primarily for cooling, in the sense of a heat transport cooling the shuttle fluid.
  • the cooling section is preferably a route in which no separator is arranged.
  • the cooling section preferably extends from the region of the commutation line in which the separator is arranged to the membrane housing.
  • the pendulum line is integrally formed.
  • the region of the commutation line in which the separator is arranged not integrally formed with the rest of the commutation line, but connected by a arranged on its side facing away from the working space Separator einsflansch with the rest of the commutation line.
  • the cooling path then preferably extends from the Separator effetsflansch to the diaphragm housing.
  • a pipe bend is arranged between the cooling section and the membrane housing.
  • the cooling section then preferably extends from the region of the commutation line in which the separator is arranged or from the separator line flange to the end of the pipe bend facing the cooling section.
  • the shuttle of the mud pump has no heat exchanger.
  • the length of the entire suspension line is less than five meters. More preferably, the length of the entire suspension line is less than four meters and preferably less than three meters or less than two meters.
  • the pendulum line preferably extends from the working space to the diaphragm housing. Particularly preferably, the pendulum line extends from the connection of the Saugventilgephaseuses the working space to the diaphragm housing.
  • the pendulum line is therefore preferably rigidly cased, so there are no moving elements such.
  • the thermal expansion is preferably not compensated by the pipeline, such as by an expansion arc.
  • the medium to be pumped may be nickel sludge, which may for example have a temperature of about 210 ° C.
  • the material of the membrane which is preferably arranged in the displacement chamber, preferably comprises a high-temperature material.
  • the material of the membrane preferably comprises fluoroelastomer.
  • the membrane is formed in one embodiment of fluoroelastomer.
  • the area of the commutation line, which has the separator, is connected to the displacer by the shortest route.
  • hot slurry pump refers in particular to pumps which are suitable for pumping sludge at a temperature of up to 300 ° C. or 250 ° C. or 210 ° or 170 ° or 160 ° C. or 140 ° C.
  • the hot slurry pump is suitable for pumping hot sludge at a temperature of 160 ° C to 210 ° C.
  • the invention also relates to a method in which hot sludge is pumped with a pump according to one of claims 1 to 5.
  • the oscillating liquid is not actively cooled.
  • not actively cooled is meant in the context of this document, in particular, that no measures are taken, which serve exclusively or primarily the cooling of the shuttle fluid in the sense of a heat transport cooling the shuttle fluid.
  • a pendulum liquid temperature which is tolerable for the membrane is preferably achieved in the displacer space - preferably exclusively - by separating the hot sludge to be pumped from cooler oscillating liquid with the aid of a separator.
  • sludge is in a temperature range of 130 ° C to 300 ° C or 130 ° C to 250 ° C or 1 30 ° C to 21 0 ° C or 130 ° C to 170 ° C or 130 ° C to 160 ° C or 130 ° C to 140 ° C or 160 ° C to 210 ° C pumped.
  • the thermal change in length of the pendulum line is not compensated.
  • FIG. 1 is a schematic principle cross-sectional view of a known from the prior art pump with a long cooling section.
  • FIG. 2 is a perspective view of a part of an embodiment of the hot-sludge pump according to the invention;
  • FIG. 3 shows a detail of a longitudinal section through the part of the hot sludge pump shown in FIG. 2 in comparison with FIG. 2 on a larger scale;
  • FIG. 4 shows a side view of a part of a hot mud pump according to the invention
  • Figure 5 is a top view of the part of the hot slurry pump shown in Figure 4;
  • Fig. 6 is a partially sectioned side view of a portion of the hot slurry pump in comparison with FIG. 4 larger scale.
  • a known from the prior art hot slurry pump is shown in principle.
  • This known pump has a drive unit A and a pump unit B.
  • the pendulum line 3 of the known from the prior art pump has a cooling section K with a heat exchanger T, which should strengthen the cooling effect of the pendulum line.
  • the length I of the cooling section K is greater than three meters.
  • the cooling section K extends from the region 6 of the pendulum line 3, in which the separator is arranged, to the pipe bend connecting the cooling section K to the membrane housing 14, which is here designed as expansion compensator D. More specifically, the cooling path K extends from the Separator effetsflansch 21 to the pipe bend, more precisely, up to the cooling-path-facing end 24 of the elbow.
  • 2 and 3 show the drive unit A and a part of the pump unit B of a hot sludge pump according to the invention. In the embodiment shown is a double-acting duplex pump.
  • the drive unit A comprises a drive shaft 13, which is rotated by a motor, not shown, for example, an electric motor in rotation.
  • At least one only indicated gear is arranged, which meshes with at least one much larger, merely indicated gear of the crankshaft 7.
  • the crankshaft can also be driven directly.
  • two connecting rods 8 are arranged side by side.
  • the connecting rods transmit their movement in each case by means of a crosshead 9 to a crosshead rod 12, which merges into a piston rod 11.
  • a piston 10 is arranged, which performs a straight-line oscillating movement in a cylinder.
  • a transmission medium 10a for example hydraulic oil, is arranged in each of the two cylinders 5, 5 ' .
  • Adjacent to each cylinder 5, 5 ' are two transmission medium spaces (not shown in FIGS.
  • the transmission medium transmits the movement of the piston to the displacement elements, which are each formed as a flat membrane 19. Since the pump is double-acting, each cylinder 5, 5 ' with two displacement chambers 2, 2 ' , 2 " , 2 “' in operative connection, each comprising a membrane 19 and as a membrane housing 14, 14 ' , 14 " , 14 “' are executed.
  • the transmission medium flows into a membrane housing 14 ' , 14 "' and displaces the membrane 19 arranged there.
  • transfer medium flows into another membrane housing 14, 14 " and causes the there Displacement of another membrane 19.
  • the membrane housing 14, 14 ' , 14 " , 14 “' of the hot slurry pump according to the invention can be taken alone as in the known pump shown in cross-section in Fig. 1.
  • FIG. 4 shows in particular the pump unit B of the hot slurry pump in a side view.
  • FIG. 5 shows, in a top view, in particular of this pump unit B, the four diaphragm housings 14, 14 ' , 14 " , 14 “' already shown in FIG. 2, as well as the two cylinders 5, 5 ' already shown in FIG.
  • To each diaphragm housing 14, 14 ' , 14 " , 14 “' exactly one suspension line 3, 3 ' , 3 " , 3 “' is connected, which housing each membrane with exactly one working space 1, 1 ' , 1 " , 1 "' connects.
  • the drive unit A and the pump unit B of the illustrated embodiment of the hot slurry pump according to the invention are immovable, so in particular fixedly mounted on the ground executed.
  • the working space 1, 1 ' , 1 " , 1 "' and the displacement chamber 2, 2 ' , 2 " , 2 “' are therefore immovable to each other.
  • each transfer line 3, 3 ', 3 ", 3"' from the port 23 of the housing of the inlet check valve 17, 17 ', 1 7 ", 17"' to the diaphragm housing 14, 14 ', 14 "extending, 14 "' .
  • the four pendulum lines 3, 3 ' , 3 " , 3 “' have two different lengths 11, 12 due to the geometry of the pump. Both the length 11 and the length 12 of the suspension lines is less than five meters.
  • the illustrated embodiment of the hot slurry pump according to the invention has no heat exchanger T.
  • FIG. 6 also shows that no compensating device D or compensation measure is provided to compensate for the thermal change in length of the pendulum line 3, 3 ' , 3 " , 3 “' .
  • the pendulum line 3, 3 ' , 3 " , 3 “' serves to load the membrane 19 at a significantly lower temperature than it has to be pumped hot sludge. This is achieved by means of a separator 4.
  • the pendulum line 3, 3 ' , 3 " , 3 “' has at its the working space 1, 1 ' , 1 " , 1 "' facing the end of a range 6, 6 ' , 6 " , 6 “' , each having a separator 4 includes. This is designed as a separating piston.
  • the area 6, 6 ' , 6 " , 6 “' of the pendulum line, which has the separator 4, is connected by the shortest route to the displacer space 2, 2 ' , 2 " , 2 “' .
  • the shuttle 20 is not actively cooled. Thus, no device is provided which causes exclusively or primarily the cooling of the oscillating liquid 20 in the sense of a heat transport cooling the shuttle liquid 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe à boues chaudes, comprenant au moins une chambre de travail (1, 1´, 1´´, 1´´´) et au moins une chambre de refoulement (2, 2´, 2´´, 2´´´) immobile par rapport à celle-ci, ainsi qu'une conduite compensatrice (3, 3´, 3´´, 3´´´) qui relie activement la chambre de travail (1, 1´, 1´´, 1´´´) à la chambre de refoulement (2, 2´, 2´´, 2´´´) et dans laquelle est à chaque fois monté un séparateur (4). La conduite compensatrice (3, 3´, 3´´, 3´´´) ne comprend aucun segment de refroidissement, ou alors la longueur (l) de la conduite de refroidissement (3, 3´, 3´´, 3´´´) est inférieure à trois mètres.
EP14806242.5A 2013-12-18 2014-12-02 Pompe à boues chaudes Withdrawn EP3084213A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013114320.2A DE102013114320A1 (de) 2013-12-18 2013-12-18 Heißschlammpumpe
PCT/EP2014/076176 WO2015090928A1 (fr) 2013-12-18 2014-12-02 Pompe à boues chaudes

Publications (1)

Publication Number Publication Date
EP3084213A1 true EP3084213A1 (fr) 2016-10-26

Family

ID=52003761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14806242.5A Withdrawn EP3084213A1 (fr) 2013-12-18 2014-12-02 Pompe à boues chaudes

Country Status (6)

Country Link
US (1) US20160327032A1 (fr)
EP (1) EP3084213A1 (fr)
CN (1) CN105829713B (fr)
AU (1) AU2014365435B2 (fr)
DE (1) DE102013114320A1 (fr)
WO (1) WO2015090928A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443343B (zh) * 2015-12-29 2019-02-12 米顿罗工业设备（上海）有限公司 一种双作用液压计量泵液力端
US20240309862A1 (en) * 2023-03-15 2024-09-19 Westinghouse Electric Company Llc Bellows pump for liquid metals

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Publication number Priority date Publication date Assignee Title
US3161139A (en) * 1961-08-03 1964-12-15 Montedison Spa Method and means for pumping corrosive liquids
US3241496A (en) * 1964-02-29 1966-03-22 Tamagawa Kikai Kinzoku Kk Apparatus for pumping slurry and like fluids
JPS4936162B1 (fr) * 1970-09-21 1974-09-28
JPS5017683B1 (fr) * 1971-01-28 1975-06-23
JPS5018604B1 (fr) * 1971-06-24 1975-07-01
US4247266A (en) * 1979-02-16 1981-01-27 Vapor Corporation Fluid pump drive system
DE3012028A1 (de) * 1980-03-28 1981-10-08 Josef Emmerich Pumpenfabrik GmbH, 5481 Hönningen Vorrichtung zum foerdern von fliessfaehigen medien
NL9001676A (nl) * 1990-07-24 1992-02-17 Holthuis Bv Pompsysteem.
US5310321A (en) * 1990-07-24 1994-05-10 Baker Hughes Incorporated Pump system
US5368451A (en) * 1991-06-04 1994-11-29 Hammond; John M. Metering pump
NL1004890C2 (nl) * 1996-12-24 1998-06-25 Envirotech Pumpsystems Netherl Pompsysteem in het bijzonder geschikt voor het verpompen van hete media.
DE19903061C2 (de) * 1999-01-26 2002-11-21 Emmerich Josef Pumpenfab Verdrängerpumpe
NL1021048C2 (nl) * 2002-07-11 2004-01-13 Weir Netherlands B V Zuigermembraanpomp.
CN201013545Y (zh) * 2006-10-12 2008-01-30 上海大隆机器有限公司 一种可输送高温、高压、颗粒介质的往复式柱塞泵
EP2154371B1 (fr) * 2008-08-14 2018-09-19 Bran + Lübbe GmbH Dispositif de pompe
CN101424255A (zh) * 2008-12-11 2009-05-06 湖北精工科技有限公司 矿物质流体高压输送泵
US8940250B2 (en) * 2009-07-09 2015-01-27 Basf Se Method of conveying liquids

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015090928A1 *

Also Published As

Publication number Publication date
AU2014365435B2 (en) 2018-05-10
AU2014365435A1 (en) 2016-06-23
CN105829713B (zh) 2018-02-16
CN105829713A (zh) 2016-08-03
WO2015090928A1 (fr) 2015-06-25
US20160327032A1 (en) 2016-11-10
DE102013114320A1 (de) 2015-06-18

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