CN101914935B - Regulation group for driving supply of electric pump of local distribution network used for distributing liquid - Google Patents
Regulation group for driving supply of electric pump of local distribution network used for distributing liquid Download PDFInfo
- Publication number
- CN101914935B CN101914935B CN2009102665992A CN200910266599A CN101914935B CN 101914935 B CN101914935 B CN 101914935B CN 2009102665992 A CN2009102665992 A CN 2009102665992A CN 200910266599 A CN200910266599 A CN 200910266599A CN 101914935 B CN101914935 B CN 101914935B
- Authority
- CN
- China
- Prior art keywords
- main body
- box
- chamber
- circuit board
- flow
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
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- 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
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
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- 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
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
- H01H35/405—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane the switch being of the reed switch type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/0033—Mountings; Housings; Connections
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
A regulation group for driving local distribution network supply electric pump used for distributing liquid comprises a main body (3) and a circuit board (27) for controlling electric pump; the main body (3) has a chamber (3A) for passing liquid; magnets (31A, 29A) which are respectively one part of a pressure converter and a flow converter are disposed in the chamber; the circuit board is accommodated in a box (7) applied in the main body (3); and a relatively thin air gap (33) is arranged between the box (7) and the main body (3).
Description
Technical field
The present invention relates to improved adjustment group, it drives the motor-drive pump that pressurized liquid is provided, the type of particularly in the European patent No.1479911 of same Applicant, describing in dispensing apparatus.
Background technique
In the adjustment group of above-mentioned patent, motor-drive pump is by the electric control unit actuating based on the sensor of the pressure of the liquid that is used for discharging from pump and flow velocity.This control unit comprises the circuit board of the outer wall of the main body that is applied to the adjustment group, is crossed the outer wall of main body and is therefore trended towards having the temperature the same with liquid by the flow of liquid that pump provides.When enough low and local environmental conditions temperature and humidity allowed when the temperature of the liquid of pumping, the moisture in the atmosphere trended towards at the outer surface of aforementioned body and is applied in condensation on the parts on the main body outer surface, and this will jeopardize the functional of circuit board.The objective of the invention is to avoid this shortcoming.
Summary of the invention
The present invention relates to a kind of adjustment group; This adjustment group comprises the pressurized storage case and has main body; Said adjustment group also comprises the circuit board that is used to control motor-drive pump; This main body has the chamber of the flow of fluid that is used for pumping, the set inside of this main body have the permanent magnet of pressure converter and flow converter, said pressure converter and flow converter be suitable for producing with chamber in pressure and the signal that flow velocity is associated of liquid.Circuit board is contained in the box that is applied on the said main body, and comprises the reed relay that is activated by the wall of being processed by nonferromagnetic material of said permanent magnet through main body and box.Through this structure; The reed relay and the distance that is immersed between the permanent magnet in the liquid that is driven by motor-drive pump separately that are installed on the circuit board must be relatively little; Because this receives the restriction of the internal characteristics of these parts, just: the restriction of the intensity in the magnetic field that receives to give off and the sensitivity of reed relay by magnet.Therefore circuit board is near fluid passage, thereby is exposed among any temperature difference with liquid.
According to the present invention; The wall of box and main body (wherein the magnetic field of permanent magnet pass the wall of box and main body and propagate into reed relay) forms the air clearance of relative thin between them; This air clearance has the thermal insulation function, with the heat exchange between the box of the liquid of avoiding above-mentioned pumping and containment circuit board.In this way, keep the correct function of magnetic quantity transducer, and reduced the transmission of heat between box (circuit board is arranged on wherein) and the said main body (liquid by the supply of adjustment group passes through this main body) significantly, thereby avoid in chamber, forming condensed water.
In addition, according to the present invention, this air clearance is contained in the volume of air in this air clearance with permission through the convection current renewal, and is formed on any condensed water in this air clearance through gravitational discharge preferably towards external opening.
Description of drawings
Description and accompanying drawing through hereinafter will more easily be understood the present invention, and accompanying drawing shows nonrestrictive practical embodiments of the present invention.
More specifically, in the accompanying drawings:
Accompanying drawing 1 shows the plan view according to adjustment group of the present invention.
Accompanying drawing 2 shows the sectional view of basis based on the vertical plane of the II-II of accompanying drawing 1.
Accompanying drawing 3 shows the sectional view according to the III-III of accompanying drawing 2.
Embodiment
With reference to accompanying drawing 1; Adjustment group 1 comprises hollow body 3, storage tank 5 and is contained in the electric control unit in the box 7; Wherein by the flow of liquid of motor-drive pump (not shown) pumping through said hollow body 3; Main body 3 is plugged between storage tank 5 and the box 7, and is fixed on storage tank and the box through attachment screw.
With reference to accompanying drawing 2; Main body 3 comprises the chamber 3A that is used for flow of fluid; It has bottom inlet 3B and top outlet 3C; Chamber 3A is the cylindrical shape with axis X-X, and its bottom limits through the thin-walled of being processed nonferromagnetic material 11 in a side, and limits at the elastic diaphragm 9 of opposite side through storage tank 5.In the central part of barrier film 9 and at its place, relative both sides, be fixed with two dishes 15 and 17, said two dishes 15 and 17 remain on barrier film between said two dishes 15 and 17 through threaded 19.Barrier film 9 is compressed spring 21 compressing, and this pressure spring trends towards making diaphragm flexes, and reducing the volume of chamber 3A, spring action is at the bottom 5A of the frustum of a cone shell of storage tank 5 and coil between 15.The inlet nozzle 3B of chamber 3A comprises the seat 23 that is used for mushroom intercepting parts 25, and under the effect of the overvoltage in gravity and chamber 3A, these intercepting parts 25 are suitable at vertical direction, are free to slide through gravity, to close inlet nozzle 3B when the supply fluid not.
Box 7 comprises lid 7A and the smooth diapire 7B around the covering that interfixes through screw.In the inside of box, circuit board 27 is fixed on the diapire 7B, and circuit board comprises two reed relaies 29 and 31, and said two reed relaies are activated by separately permanent magnet 29A and 31A respectively.Permanent magnet 29A and 31A are respectively by the head supporting of intercepting parts 25 with the cylinder 17A that is fixed to dish 17.Permanent magnet 29A and 31A and corresponding reed relay 29 and 31 form flow transducer and pressure transducer respectively; To allow circuit board 27 to drive the motor-drive pump that is used for supply fluid in known manner; The wall 11 of main body 3 and the wall 7B of box 7 are processed by nonferromagnetic material, pass through between said magnet and reed relay separately to allow magnetic field.
According to the present invention; Between the thin-walled 11 of the diapire 7B (comprising circuit board 27) of box 7 and hollow body 3; Air clearance 33 is provided; The direct heat exchange between main body 3 and the control unit 7 is avoided in air clearance 33, but this gap is enough thin, to allow through corresponding permanent magnet 29A and 31A mangneto movable contact spring relay 29 and 31.
Control unit 7 is fixed to main body 3 through the attachment screw that is bonded in the hole that is provided with among the 3D of zonule; Wherein, This zonule 3D is outstanding from three-dimensional 3 outer surface, and, at remainder; Thereby gap 33 keeps and direct connection of external environment condition allows to upgrade the air that is contained in this remainder, and is formed on any condensed water of this remainder through gravitational discharge.
It is understandable that accompanying drawing only shows the example that the mode with concrete equipment of the present invention provides, under the situation of the scope that does not break away from basic thought of the present invention, this example can change with arranging in form.Any reference character in accompanying claims only is used to be convenient to according to description and advantages claim, and limits the described protection domain of claim never in any form.
Claims (2)
1. one kind is used to drive motor-drive pump pressurized liquid is supplied to the adjustment group of dispensing apparatus; Said adjustment group comprises the circuit board (27) of main body (3) and control motor-drive pump, and said main body (3) has the chamber (3A) that is used for flow of fluid, in said chamber, is provided with pressure converter and flow converter; Said pressure converter and flow converter are suitable for producing the pressure of the liquid in the said chamber of response (3A) and the signal of flow velocity; Said circuit board is contained in the box (7) that is applied to said main body (3), and comprises reed relay (29,31); Said reed relay (29; 31) (29A, the wall of being processed by nonferromagnetic material that 31A) passes said box (7) and said main body (11) activates by separately permanent magnet
It is characterized in that the wall (7B, 11) of said box (7) and main body (3) limits the air clearance (33) of a relative thin jointly; Wherein, and corresponding said permanent magnet (29A, magnetic field 31A) is through the wall (7B of said box (7) and main body (3); 11) be transmitted to said reed relay (29,31).
2. adjustment group according to claim 1; It is characterized in that; Said air clearance (33) is contained in the volume of air in the said air clearance (33) with permission through the convection current renewal, and is formed on any condensed water in the said air clearance (33) through gravitational discharge towards external opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITFI2008A000235A IT1398617B1 (en) | 2008-12-04 | 2008-12-04 | A REGULATOR UNIT TO PILOT A POWER PUMP OF A LOCAL DISTRIBUTION NETWORK OF A LIQUID |
| ITFI2008A000235 | 2008-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101914935A CN101914935A (en) | 2010-12-15 |
| CN101914935B true CN101914935B (en) | 2012-09-05 |
Family
ID=41112533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102665992A Active CN101914935B (en) | 2008-12-04 | 2009-12-04 | Regulation group for driving supply of electric pump of local distribution network used for distributing liquid |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101914935B (en) |
| IT (1) | IT1398617B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673903B (en) * | 2016-04-18 | 2018-04-13 | 黄幼华 | A kind of self-balancing valve |
| CN105650314B (en) * | 2016-04-18 | 2018-03-16 | 黄幼华 | A kind of self-operated type voltage stabilizing balanced valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219360A1 (en) * | 1985-08-21 | 1987-04-22 | Ets. POMPES GUINARD Société dite: | Control device for a water supply installation |
| EP0539721A1 (en) * | 1991-10-21 | 1993-05-05 | WATERTECH S.r.l. | An apparatus for on/off controlling a pump in a water distribution network |
| EP0663553A1 (en) * | 1994-01-14 | 1995-07-19 | CO.GE.PO. S.r.l. | Water distribution system |
| EP0805274A2 (en) * | 1996-05-03 | 1997-11-05 | Lapa Services S.r.l. | Device for protecting a pump against dry running |
| EP0915256A3 (en) * | 1997-11-04 | 2000-05-03 | Fernando Banus Garcia | Apparatus for controlling the starting and stopping of a hydraulic pump |
| EP1479911A1 (en) * | 2003-05-23 | 2004-11-24 | Enrico Raddi | Small-size surge tank unit for domestic water systems |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478977A (en) * | 1994-04-14 | 1995-12-26 | Beasley; Victor K. | Grease flow sensor switch |
| US5863185A (en) * | 1994-10-05 | 1999-01-26 | Franklin Electric Co. | Liquid pumping system with cooled control module |
| US5827962A (en) * | 1996-09-12 | 1998-10-27 | Itt Automotive Inc. | Hydraulic brake fluid reservoir level indicator system |
| JP4088399B2 (en) * | 1999-07-19 | 2008-05-21 | 日信工業株式会社 | Reed switch unit |
| ITMI20020275A1 (en) * | 2002-02-13 | 2003-08-13 | Schneider Electric Ind Italia | CONTROL DEVICE FOR THE OPERATION OF AN AUTOCLAVE PUMP OF A WATER DISTRIBUTION NETWORK |
| WO2005100792A1 (en) * | 2004-04-14 | 2005-10-27 | Gilberto Tadeu Pires De Paula | Pressure and flow controller for a pump |
-
2008
- 2008-12-04 IT ITFI2008A000235A patent/IT1398617B1/en active
-
2009
- 2009-12-04 CN CN2009102665992A patent/CN101914935B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219360A1 (en) * | 1985-08-21 | 1987-04-22 | Ets. POMPES GUINARD Société dite: | Control device for a water supply installation |
| EP0539721A1 (en) * | 1991-10-21 | 1993-05-05 | WATERTECH S.r.l. | An apparatus for on/off controlling a pump in a water distribution network |
| EP0663553A1 (en) * | 1994-01-14 | 1995-07-19 | CO.GE.PO. S.r.l. | Water distribution system |
| EP0805274A2 (en) * | 1996-05-03 | 1997-11-05 | Lapa Services S.r.l. | Device for protecting a pump against dry running |
| EP0915256A3 (en) * | 1997-11-04 | 2000-05-03 | Fernando Banus Garcia | Apparatus for controlling the starting and stopping of a hydraulic pump |
| EP1479911A1 (en) * | 2003-05-23 | 2004-11-24 | Enrico Raddi | Small-size surge tank unit for domestic water systems |
Also Published As
| Publication number | Publication date |
|---|---|
| ITFI20080235A1 (en) | 2010-06-05 |
| IT1398617B1 (en) | 2013-03-08 |
| CN101914935A (en) | 2010-12-15 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |