GB2476117A - Liquid ring vacuum pump with an auxiliary power unit - Google Patents

Liquid ring vacuum pump with an auxiliary power unit Download PDF

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Publication number
GB2476117A
GB2476117A GB0921807A GB0921807A GB2476117A GB 2476117 A GB2476117 A GB 2476117A GB 0921807 A GB0921807 A GB 0921807A GB 0921807 A GB0921807 A GB 0921807A GB 2476117 A GB2476117 A GB 2476117A
Authority
GB
United Kingdom
Prior art keywords
casing
liquid ring
ring vacuum
auxiliary power
liquid
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Withdrawn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
GB0921807A
Other versions
GB0921807D0 (en
Inventor
Chen-Tan Yang
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.)
CUTES CORP
Original Assignee
CUTES CORP
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 CUTES CORP filed Critical CUTES CORP
Priority to GB0921807A priority Critical patent/GB2476117A/en
Publication of GB0921807D0 publication Critical patent/GB0921807D0/en
Publication of GB2476117A publication Critical patent/GB2476117A/en
Withdrawn legal-status Critical Current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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/005—Details concerning the admission or discharge
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
    • F04C23/006—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle having complementary function
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

A liquid ring vacuum pump with an auxiliary power unit has a cylindrical casing (41), a driving shaft, a rotor, a pipe (10), a body (20) and an impeller (30). The driving shaft is mounted eccentrically through the casing (41). The rotor is mounted securely around the driving shaft. The pipe (10) is mounted on and communicates with the casing (41) . The body (20) is connected to and communicates with the pipe (10). The impeller (30) is mounted in the body (20) and is connected securely to the driving shaft. The speedy gas and the liquid discharged from the casing (41) flow through the pipe (10) and into the body (20) to drive the impeller (30) to rotate. The rotating impeller (30) provides an auxiliary power to the driving shaft so the operation of the liquid ring vacuum pump is more efficient.

Description

LIQUID RING VACUUM PUMP WITH AN AUXILIARY POWER UNIT
1. Field of the Invention
The present invention relates to a liquid ring vacuum pump, and more particularly to a liquid ring vacuum pump with an auxiliary power unit
2. Description of the Prior Arts
Liquid ring vacuum pumps are widely used in industry and are used as vacuum pumps or gas compressors. With reference to Figs.3 to 5, a conventional liquid ring vacuum pump (50) comprises a cylindrical casing (51), a driving shaft (52) and arotor(53). The casing (51) has at least one inlet (511) and at least one outlet (512) and contains liquid therein such as water or oil.
The driving shaft (52) is mounted eccentrically through the casing (51) and connected to a motor. The rotor (53) is mounted securely around the driving shaft (52), is mounted in the casing (51) and has multiple chambers (531).
In operation, the rotor (53) is rotated by the driving shaft (52). The liquid such as water or oil is filled in the casing (51) and is rotated by the rotor (53) to form a liquid ring around the inside wall of the casing (51). Since the driving shaft (52) is mounted eccentrically through the casing (51), the rotor (53) is rotated eccentrically in the casing (51). Therefore, different parts of the rotor (53) have different length contacting with the liquid ring. Parts of the rotor (53) insert shallowly into the liquid ring to allow the liquid leaving the corresponding chambers (531) and to absorb gas through the inlet (511).
Meanwhile, other parts of the rotor insert deeply into the liquid ring to absorb liquid in the corresponding chambers (531) and to push gas away through the outlet (512). Thus, the vacuum effect is achieved. Besides, the gas discharged through the outlet (512) takes away some liquid with speed and the liquid is continuous replenished into the casing (51).
However, the conventional liquid ring vacuum pump (50) is only powered by the motor and energy of the speedy gas and liquid discharged through the outlet (512) is waste. Therefore, to effective use of the energy of the speedy gas and liquid and develop a liquid ring vacuum pump with more efficiency is needed.
The main object of the present invention is to provide a liquid ring vacuum pump with an auxiliary power unit to improve actuation efficiency.
A liquid ring vacuum pump with an auxiliary power unit has a cylindrical casing, a driving shaft, a rotor, a pip; a body and an impeller. The driving shaft is mounted eccentrically through the casing. The rotor is mounted securely around the driving shaft. The pipe is mounted on and communicates with the casing. The body is connected to and communicates with the pipe. The impeller is mounted through the body and is connected securely to the driving shaft. The speedy gas and the liquid discharged from the casing flow through the pipe and into the body to drive the impeller to rotate. The rotating impeller provides an auxiliary power to the driving shaft so the operation of the liquid ring vacuum pump is more efficient.
IN TH DRAWINGS! Fig. 1 is a perspective view of a liquid ring vacuum pump with an auxiliary power unit in accordance with the present invention; Fig. 2 is a perspective view of internal elements of' the liquid ring vacuum pump with an auxiliary power unit in Fig. 1; Fig. 3 is a perspective view of a conventional liquid ring vacuum pump
in accordance with the prior art;
Fig. 4 is a side view in partial section of the conventional Liquid ring vacuum pump in Fig. 3; and Fig. 5 is a front view of the conventional liquid ring vacuum pump in Fig. 3.
With reference to Figs. 1 and 2, a liquid ring vacuum pump with an auxiliary power unit in accordance with the present invention comprises a cylindrical casing (41), a driving shaft, a rotor, a pipe (10), a body (20) and an impeller (30).
The casing (41) has at least one inlet (411) and at least one outlet tube (412) and contains liquid therein such as water or oil.
The driving shaft is mounted eccentrically through the casing (41) and is connected to a motor.
The rotor is mounted securely around the driving shaft and is mounted in the casing (41) and has multiple chambers.
The pipe (10) is mounted on the casing (41) and has at least one inlet tube (11) and an outlet tube (12). The at least one inlet tube (11) is connected to and communicates with the at least one outlet tube (412) of the casing (41).
The body (20) is cyclic and is connected to and communicates with the pipe (10) and has a center, a bottom, an inside, an inner cavity (21), a connecting port, a flange (23) and at least one exhaust port. The connecting port is formed through the body (20) and communicates with the inner cavity (21) of the body (20) and is connected to and communicates with the outlet tube (12) of the pipe (10). The flange (23) protrudes around the body (20). The at least one exhaust port is formed on the body (20). In a preferred embodiment, the at least one exhaust port is defined to have a gas exhaust tube (24) and a liquid exhaust tube (25). The gas exhaust tube (24) is formed on the center of the body (20) and communicates with the inner cavity (2 1) of the body (20).
The liquid exhaust tube (25) is formed on the bottom of the body (20) and communicates with the inner cavity (21) of the body (20).
The impeller (30) is mounted through the body (20) and has a base (32) and multiple blades (31). The base (32) is connected securely to the flange (23) of the body (20). The blades (31) are formed on the base (32) and are connected securely to the driving shaft and are mounted in the inner cavity (21) of the body (20).
When the liquid ring vacuum pump in accordance with the present invention is operated, the rotor is rotated and the liquid filled in the casing (41) is rotated as well around the inside of the casing (41) to form a liquid ring.
Since the driving shaft is mounted eccentrically through the casing (41), the rotor is rotated eccentrically in the easing (41). Therefore, different parts of the rotor have different length contacting with the liquid ring. Parts of the rotor insert shallowly into the liquid ring to allow the liquid leaving corresponding chambers and to absorb gas through the inlet (411). Meanwhile, other parts of the rotor insert deeply into the liquid ring to absorb liquid in corresponding chambers and to push gas away through the outlet tube (412) carrying liquid with sPeed.
The speedy gas and liquid further flow into the inlet tube (11) of the pipe (10), then outflow from the outlet tube (12) of the pipe (10) and flow in the inner cavity (21) of the body (20). The speedy gas and liquid flap on the blades (31) of the impeller (30) so the impeller (30)is driven to rotate. After flapping on the blades (31) of the impeller (30), the gas discharges from the gas exhaust tube (24) of the body (20), most of the liquid drops down to discharge from the liquid exhaust tube (25) of the body (20), and the rest of the mist liquid is flung around the inside of the body (20) by the rotating blades (31) and drops down to discharge from the liquid exhaust tube (25) of the body (20).
Thus, the gas-water separation is achieved. The rotating impeller (30) provides an auxiliary power to the rotor for smooth rotating. Therefore, the operation of the liquid ring vacuum pump in accordance with the present invention is more efficient and energy of the speedy gas and liquid discharged through the outlet tube (412) is effective to use.

Claims (5)

  1. CLAIMS: 1. An liquid ring vacuum uinp with an auxiliary power unit comprising: a cylindrical casing (41) containing liquid and having at least one inlet (411) and at least one outlet tube (412); a diving shaft mounted eccentrically through the casing (41) and connected to a motor; a rotor mounted securely around the driving shaft and mounted in the casing (41) and having multiple chambers; a pipe (10) mounted on tile casing (41) and having at least one inlet tube (11) connected to and communicating with the at least one outlet tube (412) of the casing (41); and an outlet tube (12); a body (20) connected to and communicating with tile 1C (1 0) and having an inner cavity (21); and at least one exhaust port formed through the body (20); and an impeller (30) mounted through the body (20) and has multiple blades (31) connected securely to the driving shaft and mounted in the inner cavity (21) of the body (20).
  2. 2. Tile liquid ring vacuum rnmp with an auxiliary power unit as claimed in claim 1, wherein the body (20) further has a connecting port fornled through tile hod)' (20) and communicating with the inner cavity (2 1) of the body (20) and connected to and communicating with the outlet tube (12) of the pipe(lO).
  3. 3. The liquid ring vacuum pump with an auxiliary power unit as claimed in claims I or 2, wherein the body (20) further has a flange (23) protruding around the body (20); and the impeller (30) further has a base (32) connected securely to the flange (23)of the body (20).
  4. 4. The liquid ring vacuum pump with an auxiliary power unit as claimed in claim 3, wherein the at least one exhaust port is defined to have a gas exhaust tube (24) and a liquid exhaust tube (25).
  5. 5. The liquid ring vacuum pump with an auxiliary power unit as claimed in claim 4, wherein the body (20) further has a center; and the gas exhaust tube (24) is formed on the center of the body (20) and communicates with the inner cavity (21) of the body (20).
GB0921807A 2009-12-14 2009-12-14 Liquid ring vacuum pump with an auxiliary power unit Withdrawn GB2476117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0921807A GB2476117A (en) 2009-12-14 2009-12-14 Liquid ring vacuum pump with an auxiliary power unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0921807A GB2476117A (en) 2009-12-14 2009-12-14 Liquid ring vacuum pump with an auxiliary power unit

Publications (2)

Publication Number Publication Date
GB0921807D0 GB0921807D0 (en) 2010-01-27
GB2476117A true GB2476117A (en) 2011-06-15

Family

ID=41667047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0921807A Withdrawn GB2476117A (en) 2009-12-14 2009-12-14 Liquid ring vacuum pump with an auxiliary power unit

Country Status (1)

Country Link
GB (1) GB2476117A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB254564A (en) * 1925-09-19 1926-07-08 Willis Haviland Carrier Method of and apparatus for compressing and otherwise treating fluids
US4946349A (en) * 1989-07-19 1990-08-07 National Space Development Agency Of Japan Water ring vacuum pump
JPH02308995A (en) * 1989-05-23 1990-12-21 Kawasaki Heavy Ind Ltd Liquid sealed pump device
RU2005222C1 (en) * 1991-04-22 1993-12-30 Владимир Иванович Бойцов Vacuum pump unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB254564A (en) * 1925-09-19 1926-07-08 Willis Haviland Carrier Method of and apparatus for compressing and otherwise treating fluids
JPH02308995A (en) * 1989-05-23 1990-12-21 Kawasaki Heavy Ind Ltd Liquid sealed pump device
US4946349A (en) * 1989-07-19 1990-08-07 National Space Development Agency Of Japan Water ring vacuum pump
RU2005222C1 (en) * 1991-04-22 1993-12-30 Владимир Иванович Бойцов Vacuum pump unit

Also Published As

Publication number Publication date
GB0921807D0 (en) 2010-01-27

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)