Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
  • B08B3/02—Cleaning by the force of jets or sprays
  • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
  • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
  • A47L11/408—Means for supplying cleaning or surface treating agents
  • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
• • 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
  • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
  • F04B49/06—Control using electricity
• • 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
  • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
  • F04B49/08—Regulating by delivery pressure
• • 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
  • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
  • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
  • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
  • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
  • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
  • B05B9/0409—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material the pumps being driven by a hydraulic or a pneumatic fluid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
  • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
  • B08B2203/0223—Electric motor pumps
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
  • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
  • B08B2203/0252—Ecological type pressure cleaners, e.g. by pressure intensifiers
• • 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
  • F04B2203/00—Motor parameters
  • F04B2203/02—Motor parameters of rotating electric motors
  • F04B2203/0209—Rotational speed

Definitions

• the present invention refers to a system equipped with high-pressure and low-flow-rate pumping unit.
• the invention will be described with reference to a system for cleaning, but it will be able to be used, in an equally efficient way, in similar, but also different, fields, such as industrial cleaning, materials- removing activities, de-painting, etc., as described below.
• Object of the present invention is solving the above prior art problems, by providing a system equipped with high-pressure and low-flow-rate pumping unit, that allows obtaining the following improvements :
• FIG. 1 is a schematic block diagram of a preferred embodiment of the system equipped with pumping unit of the present invention.
• Figure 1 a preferred embodiment of the system of the present invention is shown and described. It will be immediately obvious that numerous variations and modifications (for example related to shape,, sizes, arrangements and parts with equivalent functionality) can be made to what is described, without departing from the scope of the invention . as appears from the enclosed claims .
• purpose of the system according to the present invention is providing minimum performance for carrying out its working (industrial cleaning, materials-removing activities, paint stripping, etc.) in order to use the lowest amount of water possible; this is the innovation introduced by this pumping unit, that has been devised and designed in order to optimise this object.
• the inventive system therefore comprises:
• At least one high-pressure pumping unit (pump) 1 adapted to pump at a high output pressure water or other similar fluids;
• At least one device 5 for regulating the revolutions of the pump 1 (in particular an inverter) , connected to the motor 3 for its control.
• the pumping unit of the invention can further comprise:
• the high-pressure pump 1 is connected to the electric motor 3 through a coupling system that tr-ansm-i-ts—me-t-i-en-v-
• the electric motor 3 is driven through an electric panel (not shown) that includes the inverter 5 in order to be able to change the revolutions of the high-pressure pump 1 and therefore its flow-rate; the revolutions of the motor 3 are regulated by the operator depending on the pressure value to be adopted and the consumption of water to be obtained.
• the supply water to the high-pressure pump 1 is made pass through a filtering system 9 and then it is stored into the accumulating tank 11 ; the electro-pump booster 13 allows sending water at the inlet of the high-pressure pump 1 .
• the high-pressure pump 1 is further equipped with a control valve (not shown) that can be actuated both electrically and pneumatically; and the air compressor 7 takes care of providing the necessary compressed air.
• the high-pressure water is sent to the special nozzle 15 , suitably studied for generating a low- flow-rate flow with a diameter of 0 . 4 mm.
• the innovative aspect of the above-described pumping unit consists in' building the high-pressure -pump— 1—so— trha-—it—d3 ⁇ 4 ⁇ ivers trie maximum possible pressure with a very low flow-rate and at a reduced size, solution that can be obtained by using the inverter 5 connected to the electric motor 3, also with small sizes.
• such pump is preferably a pump made by the Company WOMA of the Kaercher Group with code 70M P10, of the triplex type with horizontal diving pistons and with_ _J 1 ame_llar sealing gaskets, completed with head, conversions and stainless steel flanges, pressure by-pass, breakage disk and manometer with glycerine bath;
• system supporting frame made of metallic section bars with wheels, two of which are fixed and 2 are rotating with brake, whose preferred overall sizes are 180 x 78 x 120 cm (length x width x height) with a weight of about 300 kg.
• the above-described system with pumping unit can be installed on a van (not shown) dedicated to the system itself, namely equipped with an electric supply source and with an accumulating tank in order to guarantee some autonomous operating hours.
• the weight is reduced to a maximum, in order to be able to be transported on a van
• the assembly structure is made in order to reduce the motor and pump vibrations to a minimum and the rubber wheels do not transmit the possible vibrations on the ground
• the assembly is equipped with steering wheels that allow its movements through, a person' s thrust
• the assembly has to be supplied with water and three-phase and single- phase electric energy, in order to reduce to a minimum the necessary couplings (air compressor, pump booster and water-filtering system are integrated in the assembly) working flexibility: the pressure adjustable from 500 to 2500 bar makes this assembly unique in the current high pressure field and allows a high working flexibility, allowing to perform several works
• the low flow-rate used (from 2 to 4 1/min) allows minimising the ecological impact and reducing the waste of necessary water for performing the works
• the electric panel is equipped with all necessary warning lights for the correct operation of the unit; moreover, there is a panel for managing the speed-changing device, in order to provide all information about the operation in a simple and immediate way
• an exclusive nozzle in order to manage the low water flow-rate being generated, an exclusive nozzle is used, which is able to operate till 2500 bar.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Cleaning By Liquid Or Steam (AREA)
• Control Of Non-Positive-Displacement Pumps (AREA)
• Paper (AREA)
• Gas Separation By Absorption (AREA)
• Engine Equipment That Uses Special Cycles (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (3)

Family

ID=45757127

Family Applications (1)

Country Status (6)

Family Cites Families (8)

• 2011
  • 2011-10-29 IT IT000992A patent/ITTO20110992A1/it unknown
• 2012
  • 2012-09-26 EP EP12791280.6A patent/EP2770895B1/en active Active
  • 2012-09-26 PL PL12791280T patent/PL2770895T3/pl unknown
  • 2012-09-26 BR BR112014010254-6A patent/BR112014010254B1/pt active IP Right Grant
  • 2012-09-26 ES ES12791280.6T patent/ES2567310T3/es active Active
  • 2012-09-26 WO PCT/IT2012/000294 patent/WO2013061346A2/en active Application Filing

Non-Patent Citations (1)

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