US3893785A - Device for mixing and impelling of heat-exchange fluids - Google Patents

Device for mixing and impelling of heat-exchange fluids Download PDF

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Publication number
US3893785A
US3893785A US393681A US39368173A US3893785A US 3893785 A US3893785 A US 3893785A US 393681 A US393681 A US 393681A US 39368173 A US39368173 A US 39368173A US 3893785 A US3893785 A US 3893785A
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United States
Prior art keywords
chamber
combination
impeller
apertures
chambers
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Expired - Lifetime
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US393681A
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English (en)
Inventor
Edmund Maron
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Saurer AG
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Adolph Saurer AG
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Publication date
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/105—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system pumps combined with multiple way valves

Definitions

  • a UNITED STA tubular baffle is shiftable axially in the apertures for 2,2 SZYOHOWSkl t a1. increasing the effective cross section of one of the ap- 2,496,870 2/1950 I "415/11 ertures while simultaneously decreasing the effective cross section of the other aperture, and vice versa.
  • the present imention relates generally to a device for mixing and impelling of heat-exchange fluids. particularly for heat-exchange fluids in central heating systents and the like.
  • a device for mixing and impelling of heat-exchange fluids in a combination comprising wall means defining a first. a second and a third chamber.
  • An impeller is interposed between the first and second chambers and has a suction side communicating with the first chamber. and a pressure side communicating with the second chamber.
  • An outlet communicates with the second and with a user.
  • a pair of inlets for cooler or hotter heatexchangc fluids each communicate with one of the first and third chambers. respectively.
  • a pair of axially aligned apertures connect the first and second chambers with one another.
  • Tubular baffle means is shiftable axially in the aper tures and operative for increasing the effective crosssection ofone of the apertures while simultaneously decreasisng the effective cross-section of the other aper turc. and vice versa.
  • FIG. I is a somewhat diagrammatic and fragmentary axial section through an embodiment of the present invention.
  • FIG. 2 is a section taken on line H of FIG. I. simplified in certain respects for the sake of clarity.
  • reference numeral I the pump housing of a centrifugal pump. Secured to that pump housing and known. is an electromotor having an output shaft 3 on which there is mounted for rotation with the shaft 3 an impeller 4.
  • the pump housing I has a partition wall 5 provided with a cov er 6 which permits access to the interior of the housing I, for initial manufacturing purposes as well as for subsequent inspection andfor repair purposes.
  • the cover 6 constitutes. to gether with the shield of the electromotor 2 and the flange ofthe pump housing I which supports the elece tromotor 2.
  • a pressure chamber 7 of the pump This is a second chamber in the sense of the claim terminology employed herein. and it communicates with an outlet 8 which leads to a non-illustrated user.
  • the partition wall 5 with the cover 6 define with an additional partition wall 9 of the housing I a further space III. which communicates via an aperture A. with a chamber I7. which is the suction chamber of the pump.
  • the space I0 may be considered a part of the suction chamber 17. which can also be thought of as the first chamber within the sense of the claim terminology employed in the appended claims.
  • An inlet 11 communicates with the space 10 and receives cooler heat-exchange fluid. for instance. via a return conduit communicating with a user from which the cooled-off spent heat-exchange fluid is received.
  • the passage or aperture A can be at least almost completely closed by means of a tubular baffle 12 which is in axial alignment with the axis of rotation of the shaft 3 and can be shifted by means of a shifting rod I3 in the direction of the double headed arrow I4.
  • a tubular baffle 12 which is in axial alignment with the axis of rotation of the shaft 3 and can be shifted by means of a shifting rod I3 in the direction of the double headed arrow I4.
  • the baffle 12 is connected via spokes 18 with a center portion 19 which mounts in on the rod IS.
  • the rod 13 in turn is shiftable in the direction of the aforementioned double-headed arrow I4 by a non'illustrated drive.
  • the partition wall 9 is formed with an opening or apcrture A: through which the baffle I2 extends. Together with the outer wall I5. through which the shaft I3 extends in sealing relationship (see the illustrated seal the partition wall 9 defines a further chamber 16 which may be thought of as the third chamber of the claim terminology.
  • the chamber 16 communicates with an inlet 21 through which it receives hot heatexchange fluid. for instance from a boiler or the like.
  • the baffle l2 can either close or at least reduce the effective cross-section of the aperture A, to thereby more or less separate the space H) from the chamber 17. until finally.
  • the left-hand free end of the baffle l2 engages the cover 6. or the baffle can more or less close or reduce the effective crosssection of the aperture A until finally. the right-hand end of the baffle 12 engages the wall 15. as shown in FIG. 1.
  • the outer cylinder or circumferential surface of the baffle 12 is provided with a lip-sealing ring 20 which in the illustrated embodiment is of l.- shaped crosssection.
  • the axial length of the overall device be as small as possible.
  • the impeller is located as close to the wall at the side of the pressure chamber 7. as the deflection of the heatexchange fluid which moves in primarily radial di rection out ofthe space into the suction chamber 17 permits without incurring excessively high pressure losses.
  • connection of the inlets It and 21 with the spaces HI and 16 could of course be exchanged. if desired. as long as the sealing ring is appropriately arranged and the direction of movement of the baffle is reversed
  • the ring 20 must prevent any escape of fluid from the chamber 16 when the baffle 15 Is in the posi tion shown in FIG. 1. that is when it abuts with its right hand axial end the wall 15. This is the position in which the user does not require any heated fluid.
  • the particular configuration. particularly crosssectional configuration chosen for the ring 2" has the advantage that the latter can be reliably mounted without any difficulties and in a very simple manner in a circumferential groove formed in the outer surface of the baffle 12. and that its upstanding projection is suffi ciently resistant to deflection to provide a proper seal with respect to the partition 9.
  • H0. 2 shows that the impeller housing portion is of annular configuration. that is that the chamber 7 is also of annular configuration. and that the temperature sensor 22 is located directly adjacent the radially outer most inner wall 26 of the annular housing portion. within an angle range of l80 as seen with respect to the direction of rotation of the impeller 4. downstream of the inner edge 23 defined by the downstream side wall bounding the outlet 8 and the housing wall 20.
  • the sensor 22 When the sensor 22 is so located. it will be intensively surrounded and bathed by heat-exchange fluid in highly turbulent condition. so that it pro ⁇ ides for very sensitive and accurate indications of the temperature of admixed hot and cooler heat-exchange fluid.
  • the instilation 25 assures that the temperature of the housing does not influence the measurements taken by the sensing component 24.
  • the present invention recognizes and utilizes the trend in the construction of pumps or circulators for heating use. to employ an annular housing rather than a spiral housing for the impeller 4. because annular housings are less expensive to produce.
  • the manner in which the sensor 22 is mounted on or in the housing 1 has the further advantage that the electronic component with which the sensor 22 is to be connected. and which serves to control the drive for the displacement of the rod I3 in the direction of the double-headed arrow 14. can also be mounted on the housing 1 so that particularly compact and complete unit can be produced. Such units are greatly prized by firms installing heating equipment because they reduce substantially the amount of installation time.
  • a device for mixing and impelling of heatexchange fluids a combination comprising wall means defining a first. a second and a third chamber; an impel ler interposed between said first and second chamber and bin ing a suction side adapted to communicate with said first and said third chamber. and a pressure side communicating with said second chamber: and outlet communicating with said second chamber and with a user; a pair of inlets for cooler or hotter heat-exchange fluid each communicating with one of said first and third chambers.
  • tubular baffle means shiftable axially in said apertures and operative for increasing the effectne cross-section of one ol said apertures while simultaneousl LlLLlCtlNlllg the cl'lcctne cross section of the other aperture. and vice ⁇ ersa 2.
  • said impeller is rotatahle about an axis which is coincident with a longitudinal ;t ⁇ is of said tuhular hall'lc means 3.
  • said tubular baffle means haflng an outer c lindrical circuniten ence; and further comprising a lip-seal ol substantial! L-shaped cross-section mounted on said circumter' ence.
  • a combination as defined in claim 4. llcl'CIH said second chamber is annular 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
US393681A 1972-09-05 1973-08-31 Device for mixing and impelling of heat-exchange fluids Expired - Lifetime US3893785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1302872A CH555981A (de) 1972-09-05 1972-09-05 Anlage zum mischen und umwaelzen von waermetraegern.

Publications (1)

Publication Number Publication Date
US3893785A true US3893785A (en) 1975-07-08

Family

ID=4388655

Family Applications (1)

Application Number Title Priority Date Filing Date
US393681A Expired - Lifetime US3893785A (en) 1972-09-05 1973-08-31 Device for mixing and impelling of heat-exchange fluids

Country Status (9)

Country Link
US (1) US3893785A (ja)
JP (1) JPS4964959A (ja)
AT (2) AT318857B (ja)
BE (1) BE804431A (ja)
CH (1) CH555981A (ja)
DE (2) DE2337601C2 (ja)
FR (1) FR2198558A5 (ja)
GB (1) GB1420127A (ja)
NL (1) NL7310662A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994620A (en) * 1975-06-30 1976-11-30 Wallace-Murray Corporation Variable exducer turbine control
US4094613A (en) * 1976-05-07 1978-06-13 Sundstrand Corporation Variable output centrifugal pump
US4909704A (en) * 1987-03-16 1990-03-20 Firma Karl Lutz Barrel pump
EP1862674A1 (de) 2006-05-30 2007-12-05 Wilo Ag Kreiselpumpe
CN110173433A (zh) * 2019-04-30 2019-08-27 江苏大学 一种防堵塞装置与控制方法和污水泵

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357829A2 (fr) * 1976-07-06 1978-02-03 Giraud Gabriel Deplacement de la pompe et caracteristiques mecaniques du corps de pompe
EP0010557B1 (en) * 1978-11-03 1981-08-12 Ballast-Nedam Groep N.V. Apparatus for safeguarding transport of a suspension of dredging spoil and water
GB2124095A (en) * 1982-07-09 1984-02-15 Wen Bin Lee Device for mixing flowing liquids
GB2234294A (en) * 1989-07-07 1991-01-30 Robert Leitch Rivers Temperature control and valve means in a water supply arrangement
DE59102700D1 (de) * 1990-05-04 1994-10-06 Grundfos Int Kreiselpumpe und damit ausgestattete Gastherme.
DE10038550A1 (de) * 1999-09-13 2001-05-03 Mannesmann Vdo Ag Pumpe
GB2447860B (en) * 2006-11-21 2011-08-03 Salamander Pumped Shower Systems Ltd Improvements in fluid pumping systems
EP3376052B1 (de) * 2017-03-15 2020-11-04 Grundfos Holding A/S Kreiselpumpenaggregat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210155A (en) * 1936-07-16 1940-08-06 Szydlowski Josef Machine for the displacement and compression of fluids
US2496870A (en) * 1946-12-20 1950-02-07 Albert J Granberg Self-priming pump
US3070025A (en) * 1958-03-03 1962-12-25 Thompson Ramo Wooldridge Inc Injector discharge pressure regulator for pumps
US3721386A (en) * 1970-10-23 1973-03-20 J Brick Temperature-volume controlled mixing valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB901761A (en) * 1957-06-17 1962-07-25 John Maxwell Sheardown Improvements in or relating to mixing valves for liquids
DE1119485B (de) * 1959-06-06 1961-12-14 Thermo Appbau G M B H Wasserumwaelzpumpe, vorzugsweise fuer Sammelheizungsanlagen
US3252422A (en) * 1963-05-15 1966-05-24 Stulens Jean Louis Circulating turbopump, particularly for central heating plants

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210155A (en) * 1936-07-16 1940-08-06 Szydlowski Josef Machine for the displacement and compression of fluids
US2496870A (en) * 1946-12-20 1950-02-07 Albert J Granberg Self-priming pump
US3070025A (en) * 1958-03-03 1962-12-25 Thompson Ramo Wooldridge Inc Injector discharge pressure regulator for pumps
US3721386A (en) * 1970-10-23 1973-03-20 J Brick Temperature-volume controlled mixing valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994620A (en) * 1975-06-30 1976-11-30 Wallace-Murray Corporation Variable exducer turbine control
US4094613A (en) * 1976-05-07 1978-06-13 Sundstrand Corporation Variable output centrifugal pump
US4909704A (en) * 1987-03-16 1990-03-20 Firma Karl Lutz Barrel pump
EP1862674A1 (de) 2006-05-30 2007-12-05 Wilo Ag Kreiselpumpe
CN110173433A (zh) * 2019-04-30 2019-08-27 江苏大学 一种防堵塞装置与控制方法和污水泵

Also Published As

Publication number Publication date
BE804431A (fr) 1974-01-02
DE2337601C2 (de) 1983-07-14
NL7310662A (ja) 1974-03-07
GB1420127A (en) 1976-01-07
JPS4964959A (ja) 1974-06-24
DE2366543C2 (de) 1984-11-29
AT318857B (de) 1974-11-25
AT319537B (de) 1974-12-27
DE2337601A1 (de) 1974-03-14
FR2198558A5 (ja) 1974-03-29
CH555981A (de) 1974-11-15

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