US3762838A - Pumping system with circulating mechanism of bubble gas - Google Patents

Pumping system with circulating mechanism of bubble gas Download PDF

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Publication number
US3762838A
US3762838A US00182647A US3762838DA US3762838A US 3762838 A US3762838 A US 3762838A US 00182647 A US00182647 A US 00182647A US 3762838D A US3762838D A US 3762838DA US 3762838 A US3762838 A US 3762838A
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US
United States
Prior art keywords
pump
conduit
valve
chamber
valves
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.)
Expired - Lifetime
Application number
US00182647A
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English (en)
Inventor
R Sato
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Individual
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Individual
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Filing date
Publication date
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Publication of US3762838A publication Critical patent/US3762838A/en
Anticipated expiration legal-status Critical
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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
    • 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
    • F04B53/06—Venting
    • 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

Definitions

  • This invention relates to a novel pump with circulating mechanism of bubble and gas for the liquid containing slurry.
  • the pump room is usually of large size so that a distance between the inlet valve and the outlet valve becomes inevitably great since they are arranged on the upper and lower portions of the pump room respectively.
  • the poppet valve on sliding upwardly and downwardly along the passage way of the liquid catches the slurry contained in the liquid to be discharged together with the gas so that the pump does not run accurately or is stopped.
  • the pump since the liquid with gas are exhausted outside the pump through the pipe, the pump is not available to the highly corrosive liquid, explosive and inflammable liquid of high volatility, poisonous liquid and the expensive liquid.
  • a principal object of the invention is to provide a new pump in which the pump room at its upper portion is provided with a check valve which at its upper end is connected to a guide sleeve which at its upper end is coupled through a valve with a conduit connected to an upper portion of the pump pipe provided at its lower end with an outlet valve so that a divided flow which is sufficiently small as not to draw up the slurry is formed, which enables to positively exhaust the bubble and gas produced during the pumping operation and stay at the upper portion of the pump room without any hindrance to the operation of pump.
  • the pump embodying the invention is characterized in that the pump room at its lower portion is coupled with a pipe having such length that slurry does not rise from the chamber formed between the inlet valve and the outlet valve and at its upper portion with a check valve, that the check valve at its other end is connected to a guide sleeve which at its other end is communicated through a valve with a conduit, that the conduit at its other end is further connected to the pump pipe of the outlet side one end of which being connected to the outlet valve.
  • FIG. 1 is a sectional view of the diaphragm pump according to the invention.
  • the diaphragm chamber 1 is communicated through the communicating pores 2 with the pump room 3 which at its upper portion 4 is provided with the check valve 5 of the ball valve type which at its upper end is coupled with the guide sleeve 6.
  • the opposite end of the guide sleeve 6 is connected through the valve 7 to the conduit 8 which is further connected to the pump pipe 1 l of the outlet side coupled at its lower end with the outlet valve 9.
  • the inlet valve 10 Under the outlet valve 9 is provided the inlet valve 10 symmetrically which is coupled with the ,pump pipe 12 of the inlet side. Between the inlet valve 10 and the outlet valve 9 is formed with the space 13 which is desired to be as short as possible.
  • the pump room 3 and the space 13 are communicated together by the pipe 14 having such height or length that slurry does not rise and enter into the pump room 3.
  • the reference numeral 15 stands for pump plunger, 16 plunger room, 17 communication pores for communicating the plunger 15 with the diaphragm chamber 1 and 18 represents the diaphragm.
  • the check valve 5 is opened so that the bubble with gas residing at the upper portion of the pump room 3 is exhausted in the form of gas alone or together with some liquid into the pump pipe 11 through the check valve 5, guide sleeve 6, valve 7 and the conduit 8.
  • the check valve 5 is closed without any hindrance to the operation of the pump.
  • the check valve to be used in the present invention is preferably of the two stage ball valve as shown in the accompanying drawing so that the check valve always runs properly even if one of the ball valve does not work due to the clogging trouble by slurry.
  • the bubble with gas residing at the upper portion of the pump room 3 is discharged in the form of gas alone or together with the liquid into the pump pipe 11 in such a way as illustrated above so that bubble and gas are positively removed without any adherence and residence or deposition of slurry within the check valve 5, the guide sleeve 6, the valve 7, or in the conduit 8.
  • the flow rate of the liquid with the valve 7, the divided flow may be adjusted in accordance with the various conditions such as nature of liquid, content of bubble and gas etc. so that the pump always runs accurately.
  • the stagnant gas alone or together with some liquid are circulated through the pump pipe, there is no dangerous and uneconomical troubles.
  • a pumping system with gas bleed comprising a pump having a pump chamber, an upright pump delivery pipe having an outlet section and having below said outlet section a pair of spaced nonreturn valves, an inlet pipe extending from between said outlet valves to said pump chamber, said inlet pipe having a horizontal screw-threaded end that screw-threadedly engages in and cooperates with a coupling member in which said nonreturn valves are closely spaced on opposite sides of a horizontal passageway in line with said horizontal end of said inlet pipe, said threaded connection and said coupling member defining therebetween a small chamber in which the valves closest to the inlet pipe operate, said pump chamber having an upright side wall thereof movable into and out of the chamber to pump liquid, a conduit extending upwardly from the top wall of the pump chamber to said outlet section of said delivery pipe, a nonreturn valve in said conduit, and an adjustable valve in said conduit for opening and closing said conduit thereby to regulate the flow of fluid through said conduit to said outlet section.
  • a pumping system as claimed in claim 1, said spaced nonreturn valves having housings that are spaced apart a distance about equal to the diameter of said passageway.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
US00182647A 1968-10-08 1971-09-22 Pumping system with circulating mechanism of bubble gas Expired - Lifetime US3762838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7285068 1968-10-08

Publications (1)

Publication Number Publication Date
US3762838A true US3762838A (en) 1973-10-02

Family

ID=13501250

Family Applications (1)

Application Number Title Priority Date Filing Date
US00182647A Expired - Lifetime US3762838A (en) 1968-10-08 1971-09-22 Pumping system with circulating mechanism of bubble gas

Country Status (5)

Country Link
US (1) US3762838A (fr)
DE (1) DE1950741A1 (fr)
FR (1) FR2020141A1 (fr)
GB (1) GB1232738A (fr)
NL (1) NL162720C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265600A (en) * 1978-09-05 1981-05-05 Harold Mandroian Pump apparatus
US6345962B1 (en) * 2000-05-22 2002-02-12 Douglas E. Sutter Fluid operated pump
US20030077190A1 (en) * 2001-10-24 2003-04-24 Shigehisa Kinugawa Reciprocating pump and check valve
US20140056724A1 (en) * 2012-08-27 2014-02-27 Hamilton Sundstrand Corporation Diaphragm metering pump having a degassing system
CN106795873A (zh) * 2014-09-05 2017-05-31 卓越有限公司 带有流体贮存器的容积泵

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265600A (en) * 1978-09-05 1981-05-05 Harold Mandroian Pump apparatus
US6345962B1 (en) * 2000-05-22 2002-02-12 Douglas E. Sutter Fluid operated pump
US20030077190A1 (en) * 2001-10-24 2003-04-24 Shigehisa Kinugawa Reciprocating pump and check valve
US6846166B2 (en) * 2001-10-24 2005-01-25 Tacmina Corporation Reciprocating diaphragm pump with degassing valves
US20140056724A1 (en) * 2012-08-27 2014-02-27 Hamilton Sundstrand Corporation Diaphragm metering pump having a degassing system
CN106795873A (zh) * 2014-09-05 2017-05-31 卓越有限公司 带有流体贮存器的容积泵
US20170198689A1 (en) * 2014-09-05 2017-07-13 Prominent Gmbh Displacement pump with fluid reservoir

Also Published As

Publication number Publication date
NL162720C (nl) 1980-06-16
FR2020141A1 (fr) 1970-07-10
NL6915203A (fr) 1970-04-10
GB1232738A (fr) 1971-05-19
DE1950741A1 (de) 1970-05-06
NL162720B (nl) 1980-01-15

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