WO2014181437A1 - 回転容積式ポンプ - Google Patents

回転容積式ポンプ Download PDF

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Publication number
WO2014181437A1
WO2014181437A1 PCT/JP2013/063075 JP2013063075W WO2014181437A1 WO 2014181437 A1 WO2014181437 A1 WO 2014181437A1 JP 2013063075 W JP2013063075 W JP 2013063075W WO 2014181437 A1 WO2014181437 A1 WO 2014181437A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
suction
pump
transfer fluid
rear casing
Prior art date
Application number
PCT/JP2013/063075
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
浜田　憲一
佐藤　正和
Original Assignee
株式会社イワキ
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 株式会社イワキ filed Critical 株式会社イワキ
Priority to PCT/JP2013/063075 priority Critical patent/WO2014181437A1/ja
Priority to CN201380076340.6A priority patent/CN105190040B/zh
Priority to JP2015515705A priority patent/JP6185052B2/ja
Priority to CN201320413989XU priority patent/CN203348078U/zh
Publication of WO2014181437A1 publication Critical patent/WO2014181437A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/007—Venting; Gas and vapour separation during pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the present invention relates to a rotary positive displacement pump such as a gear pump that rotates while the volume of a fluid transfer space is changed by movement in a rotational direction.
  • the present invention has been made in view of such problems, and an object of the present invention is to provide a rotary displacement pump that can be quickly started and does not cause a rise in the temperature of a transfer fluid.
  • the rotary displacement pump according to the present invention has a suction port and a discharge port for a transfer fluid, introduces the transfer fluid to the inside through the suction port, and rotates the internal space with a volume change in the rotation direction.
  • a pump main body that discharges the transfer fluid from the discharge port by moving, a first port that communicates with the suction port of the pump main body, and a second port that communicates with the discharge port of the pump main body and discharges the transfer fluid.
  • Rotational capacity provided with a port housing having a port and a rotational drive mechanism in which a rotary body that gives rotational drive force to cause pump operation to the pump body and is connected to the pump body is housed inside the rear casing
  • the port housing includes a first suction passage that communicates from the first port to the rear casing, and a second suction passage that communicates from the rear casing to the suction port of the pump body. Having a flow passage, the first port, the first suction passage, it is characterized in that in communication with the suction inlet of the pump body via the internal and the second suction passage of the casing.
  • the internal space of the rear casing is interposed in the flow path of the transfer fluid from the first port for introducing the transfer fluid to the suction port of the pump body.
  • the transfer fluid can be directly introduced into the interior of the rear casing from the first port by the pushing pressure of the tank. For this reason, a quick start is possible. Further, since the transfer fluid is structured to flow from the rear casing side to the pump main body side, the temperature of the transfer fluid does not increase.
  • the port housing is disposed between the pump body and the rear casing. According to such an arrangement structure, the overall length of the pump can be shortened.
  • the port housing may include a filter for filtering the transfer fluid between at least one of the first suction channel and the rear casing and between the rear casing and the second suction channel.
  • a filter for filtering the transfer fluid between at least one of the first suction channel and the rear casing and between the rear casing and the second suction channel.
  • the port housing has a vertically extending gas separation part whose lower end communicates with the first suction flow path, the lower end of the gas separation part, the first suction flow path, the second suction flow path, and Of the suction port of the pump body, it is preferable that the lower end of the gas separation unit is disposed at the top.
  • the rotary positive displacement pump is configured in this way, for example, when transferring a volatile transfer fluid, it is possible to effectively exhaust the gas generated in the suction port and the casing from the gas separation unit.
  • the piping resistance on the suction side is high, the water surface is lowered in the gas separation unit, and a gas such as air is mixed into the discharged transfer fluid through the inside of the casing and the pump body. You might also say that. However, in this embodiment, such a situation can be prevented by the check valve.
  • FIG. 1 is a cross-sectional view of the rotary positive displacement pump according to the first embodiment of the present invention as seen from the side, and FIG. 2 is a front view showing a part of the rotary positive displacement pump.
  • the rotary positive displacement pump has a magnet driven rotary drive mechanism 1 and a suction port and a discharge port for the transfer fluid, and introduces the transfer fluid into the inside through the suction port. And a pump head 2 that transports a transport fluid to a discharge port and discharges it by moving the internal space with a change in volume in the rotational direction by the rotational motion transmitted from the head.
  • the rotary drive mechanism 1 includes a bracket 11 formed with a fixing portion 11a capable of fixing a rotary positive displacement pump to a floor surface or the like. Inside the bracket 11 is accommodated a cylindrical rotary drive body 12 driven by a motor via a drive shaft (not shown). The rotary drive 12 supports a ring-shaped drive magnet 121 inside the open end. Further, the proximal end side of the rear casing 13 is accommodated inside the rotary drive body 12. A rotating body 14 that rotates in accordance with the rotational movement of the rotary drive body 12 is accommodated in the rear casing 13.
  • the rotating body 14 is magnetically coupled to the ring-shaped magnet 121, and a driven magnet 141 that transmits the rotational motion of the motor described above via the rotary driving body 12, a magnet can 142 that houses the driven magnet 141 inside, and a magnet And a rotating shaft 143 attached to the can 142.
  • the pump head 2 includes a pump body 21, a port housing 22 that supports the pump body 21, and a cover 23 that houses the pump body 21 together with the port housing 22.
  • a first port 24A and a second port 24B project from the both side surfaces of the port housing 22, respectively, and a third port 24C projects from the upper surface.
  • the pump body 21 includes a drive gear 211 that is rotationally driven by a rotary shaft 143, a driven gear 212 that meshes with the drive gear 211 in an eccentric state and is driven by the drive gear 211, and a gap between the drive gear 211 and the driven gear 212.
  • a crescent-shaped guide body 213 that is positioned and separates the suction side and the discharge side. The drive gear 211, the driven gear 212, and the guide body 213 are in contact with the housing 22 through the side plate 214 and the gasket 215.
  • a shaft hole 21a through which the shaft of the rotating body 14 is inserted is formed at the center of the side plate 214 and the gasket 215, and a suction port 21b for the transfer fluid and a discharge port 21c for the transfer fluid are formed outside the shaft hole 21a.
  • a bearing 216 is fitted on the outer side of the driven gear 212, and the outer side and front side thereof are covered with a gear housing 217.
  • the guide body 213 is formed integrally with the gear housing 217, but may be formed integrally with the side plate 214 or may be formed independently.
  • the pump body 21 is configured as described above.
  • the pump body has a suction port and a discharge port for the transfer fluid, and the transfer fluid is introduced into the inside through the suction port and rotated. What is necessary is just to discharge the transfer fluid from the discharge port by moving the internal space with the volume change in the rotation direction by the operation. Therefore, the pump body does not have a crescent-shaped guide body, for example, a trochoidal internal displacement pump, external displacement pump, or all rotary displacement pumps with different principles such as vane displacement pumps. It can be employed as the main body 21.
  • a shaft hole 22 a is formed in the center of the front surface of the port housing 22 to hold the rotating shaft 143 via a bearing 25 so as to be rotatable.
  • a gear housing fitting portion 22b into which the pump body 21 can be fitted is formed outside the shaft hole 22a, and a flange 22c is further formed outside thereof.
  • a portion corresponding to the suction port 21b of the gear housing fitting portion 22b is provided with a second suction flow path 22d communicating with the back surface of the gear housing 22, and corresponds to the discharge port 21c of the gear housing fitting portion 22b.
  • a discharge passage 22e communicating with one side surface of the gear housing 22 is bored in the portion to be performed.
  • the shaft hole 22a communicates with the center of the rear surface of the port housing 22, a wall surface 22f facing the inside of the rear casing 13 is formed on the outer side, and a flange 22g is formed on the outer side. .
  • the lowermost portion of the wall surface 22f communicates with the second suction channel 22d.
  • a first suction flow path 22h communicating with the upper surface and other side surfaces of the port housing 22 is bored at the uppermost portion of the wall surface 22f.
  • the rear casing 13 is attached to the flange 22g so as to keep the inside in a watertight / airtight state.
  • the bracket 11 is attached to a further outer portion of the flange 22g.
  • the suction flow path 22h only needs to communicate with the other side surface, and communicate with the upper surface of the port housing 22. It is not necessary.
  • the first port 24A is formed with a first suction channel 24Aa communicating with the first suction channel 22h described above, and a flange 24Ab is attached to the tip of the first port 24A.
  • the second port 24B is formed with a discharge flow path 24Ba communicating with the above-described discharge flow path 22e, and a flange 24Bb is also attached to the tip of the second port 24B.
  • a gas separation part 24Ca is formed inside the third port 24C, and the gas separation part 24Ca has a lower end communicating with the first suction flow path 22h and the first suction flow path 24Aa. It extends in the vertical direction and opens upward.
  • the gas separation unit 24Ca is provided with a check valve 24Cb.
  • a flange 24Cc is attached to the tip of the third port 24C. Note that the third port 24C is not necessary when transferring a non-volatile transfer fluid using a rotary positive displacement pump.
  • a filter 26 is fitted to the wall surface 22 f on the back surface of the port housing 22.
  • the filter 26 includes a first filter 262 that can remove foreign matters of the transfer fluid transferred from the outer frame 261 and the first suction path 22 h to the inside of the rear casing 13, and a second filter from the inside of the rear casing 13.
  • a second filter 263 capable of removing foreign substances in the transfer fluid transferred to the suction flow path 22b.
  • the filter 26 is formed in an annular shape so as not to block the shaft hole 22a and the interior of the rear casing 13. In this embodiment, in order to improve the performance of the filter, filtering is performed on both the transfer fluid transferred to the rear casing 13 and the transfer fluid discharged from the rear casing 13. It is also possible to filter either one. Further, the filter 26 may not be provided depending on the operating environment of the rotary positive displacement pump.
  • the transfer fluid is introduced from the tank to the first port 24A, and the transfer fluid is supplied into the rear casing 13 via the first suction flow path 24Aa, and the interior of the rear casing 13 is filled with water. State.
  • the rotary drive body 12 is driven by a drive shaft (not shown)
  • the rotary body 14 is driven via the ring-shaped magnet 121 and the driven magnet 141 that are magnetically coupled. Since the rotating body 14 is connected to the driving gear 211 via the rotating shaft 143, the driving gear 211 rotates, and the driven gear 212 meshed with the driving gear 211 in an eccentric state rotates. Accordingly, of the space formed by the drive gear 211, the driven gear 212, and the guide body 213, the volume of the portion exposed to the inside of the rear casing 13 through the suction port 21b and the second suction flow path 22d is as follows. In order to increase, the transfer fluid inside the rear casing 13 is sucked into the space.
  • the sucked transfer fluid is transferred to the discharge port 21c by the rotational movement of the drive gear 211 and the driven gear 212. Further, since the volume of the portion exposed to the discharge port 21c in the space formed by the drive gear 211, the driven gear 212, and the guide body 213 is reduced, the transferred transfer fluid is discharged from the discharge port 21c and the discharge channel. 22e is discharged.
  • the transfer fluid is supplied into the rear casing 13 through the first suction flow path 24Aa and the first suction flow path 22h.
  • the transfer fluid transferred into the rear casing 13 follows the same path as the transfer fluid existing in the rear casing 13, and is discharged through the discharge flow path 22e.
  • the rotary positive displacement pump since it is easy to previously fill the rear casing with water, a quick start is possible. Further, since the transfer fluid is also filled in the boundary portion between the port housing 22 and the shaft portion of the rotating body 14, the bearing 25 can be lubricated without preparing a reflux path for preventing the wear of the bearing 25. It is possible to prevent the temperature of the transfer fluid from rising. In addition, since the fluid is fed directly into the rear casing 13 and pulled out from the pump side, the inside of the rear casing can be cleaned well, and can be applied to sanitary applications and applications that transfer fluid containing slurry. is there.
  • the gas generated in the first suction flow path 22h and the rear casing 13 is discharged from the gas separation unit 24Ca, so that the problem of gas lock does not occur.
  • the piping resistance of the first suction flow path 22h is high, the water surface is lowered in the gas separation portion 24Ca, and air or the like is transferred to the transported fluid discharged through the interior of the rear casing 13 and the pump head 2. It is thought that this gas will be mixed. However, in the present embodiment, such a situation can be prevented by the check valve 24Cb.
  • the rotary positive displacement pump according to the present embodiment can be used by switching the suction direction and the discharge direction by rotating the motor in the reverse direction.
  • the position of the filter 26 can be changed to protect the pump main body 21.
  • it is limited to the discharge pressure within the rear casing pressure resistance.
  • the first pump has a suction port and a discharge port for the transfer fluid, introduces the transfer fluid to the inside through the suction port, and rotates the internal space with a volume change in the rotation direction.
  • a pump main body that discharges the transfer fluid from the discharge port by moving, a first port that communicates with the suction port of the pump main body, and a second port that communicates with the discharge port of the pump main body and discharges the transfer fluid.
  • Rotational capacity provided with a port housing having a port and a rotational drive mechanism in which a rotary body that gives rotational drive force to cause pump operation to the pump body and is connected to the pump body is housed inside the rear casing
  • the port housing includes a first suction passage that communicates from the first port to the rear casing, and a second suction that communicates from the rear casing to the suction port of the pump body. It has a road, the first port, the first suction passage, in which is in communication with the suction inlet of the pump body via the internal and the second suction passage of the casing.
  • the second pump has a suction port and a discharge port for the transfer fluid.
  • the pump body introduces the transfer fluid to the inside through the suction port and discharges the transfer fluid from the discharge port, and the suction port of the pump body.
  • a port housing having a first port for introducing a transfer fluid and a second port for discharging the transfer fluid in communication with a discharge port of the pump body, and a driving force for causing pump operation to the pump body
  • the port housing includes a first suction passage that communicates from the first port to the rear casing, and a second suction passage that communicates from the rear casing to the suction port of the pump body.
  • the first port communicates with the suction port of the pump body via the first suction flow path, the inside of the casing, and the second suction flow path, and the port housing includes the first suction flow path and the rear casing.
  • the port housing includes the first suction flow path and the rear casing.
  • a filter for filtering the transferred fluid to at least one of between and between the rear casing and the second suction passage of the.
  • the third pump has a suction port and a discharge port for the transfer fluid.
  • the pump body introduces the transfer fluid into the inside through the suction port and discharges the transfer fluid from the discharge port, and the suction port of the pump body.
  • a port housing having a first port communicating with the suction passage and introducing a transfer fluid and a second port communicating with the discharge port of the pump body and discharging the transfer fluid, and causing the pump body to perform a pump operation
  • the port housing is formed with a gas separation portion having a vertically extending portion, the lower end of the gas separation portion communicates with the first port, and the suction
  • the flow path communicates with the gas separation unit above the suction port of the pump body, and the gas separation unit has a check valve provided therein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
PCT/JP2013/063075 2013-05-09 2013-05-09 回転容積式ポンプ WO2014181437A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2013/063075 WO2014181437A1 (ja) 2013-05-09 2013-05-09 回転容積式ポンプ
CN201380076340.6A CN105190040B (zh) 2013-05-09 2013-05-09 旋转容积泵
JP2015515705A JP6185052B2 (ja) 2013-05-09 2013-05-09 回転容積式ポンプ
CN201320413989XU CN203348078U (zh) 2013-05-09 2013-07-12 泵

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/063075 WO2014181437A1 (ja) 2013-05-09 2013-05-09 回転容積式ポンプ

Publications (1)

Publication Number Publication Date
WO2014181437A1 true WO2014181437A1 (ja) 2014-11-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/063075 WO2014181437A1 (ja) 2013-05-09 2013-05-09 回転容積式ポンプ

Country Status (3)

Country Link
JP (1) JP6185052B2 (zh)
CN (2) CN105190040B (zh)
WO (1) WO2014181437A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019138303A (ja) * 2014-04-01 2019-08-22 パナソニックＩｐマネジメント株式会社 液体用ポンプ及びランキンサイクル装置
EP3869042A1 (en) * 2020-02-21 2021-08-25 Dana Motion Systems Italia S.R.L. Fluid power pack

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113191A (ja) * 1986-10-31 1988-05-18 Toshiba Corp ギアポンプ
JPH0658185U (ja) * 1993-01-11 1994-08-12 豊興工業株式会社 フィルタ付内接歯車ポンプ
JPH07279603A (ja) * 1994-04-04 1995-10-27 Kazuichi Ito 容積型流体機械
JP2005113876A (ja) * 2003-10-10 2005-04-28 Japan Aerospace Exploration Agency 平板型ポンプ装置
JP2011052682A (ja) * 2009-08-04 2011-03-17 Jtekt Corp トランスミッション用電動ポンプユニット

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3494213B2 (ja) * 1999-10-12 2004-02-09 株式会社イワキ 回転容積式ポンプ
JP4245997B2 (ja) * 2003-07-07 2009-04-02 直樹 宮城 小形ギアポンプ
WO2011016467A1 (ja) * 2009-08-04 2011-02-10 株式会社ジェイテクト 電動ポンプユニット

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113191A (ja) * 1986-10-31 1988-05-18 Toshiba Corp ギアポンプ
JPH0658185U (ja) * 1993-01-11 1994-08-12 豊興工業株式会社 フィルタ付内接歯車ポンプ
JPH07279603A (ja) * 1994-04-04 1995-10-27 Kazuichi Ito 容積型流体機械
JP2005113876A (ja) * 2003-10-10 2005-04-28 Japan Aerospace Exploration Agency 平板型ポンプ装置
JP2011052682A (ja) * 2009-08-04 2011-03-17 Jtekt Corp トランスミッション用電動ポンプユニット

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019138303A (ja) * 2014-04-01 2019-08-22 パナソニックＩｐマネジメント株式会社 液体用ポンプ及びランキンサイクル装置
EP3869042A1 (en) * 2020-02-21 2021-08-25 Dana Motion Systems Italia S.R.L. Fluid power pack
US11421668B2 (en) 2020-02-21 2022-08-23 Dana Motion Systems Italia S.R.L. Fluid power pack

Also Published As

Publication number Publication date
JPWO2014181437A1 (ja) 2017-02-23
CN105190040A (zh) 2015-12-23
CN203348078U (zh) 2013-12-18
CN105190040B (zh) 2017-03-08
JP6185052B2 (ja) 2017-08-23

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