CN101852202B - Double-aperture adjustable slow-closure control valve for water pump - Google Patents
Double-aperture adjustable slow-closure control valve for water pump Download PDFInfo
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- CN101852202B CN101852202B CN2010101959493A CN201010195949A CN101852202B CN 101852202 B CN101852202 B CN 101852202B CN 2010101959493 A CN2010101959493 A CN 2010101959493A CN 201010195949 A CN201010195949 A CN 201010195949A CN 101852202 B CN101852202 B CN 101852202B
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- valve
- solenoid valve
- control
- switch
- water pump
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Abstract
The invention relates to a double-aperture adjustable slow-closure control valve for a water pump, which comprises a main valve and a control device. A diaphragm and a spring are arranged between a valve body and a valve cover, wherein a console cabinet is arranged between the diaphragm and the valve cover and the console cabinet is provided with an inlet connecting pipe and an outlet connecting pipe connected with the inlet and the outlet of the valve body respectively. The invention is characterized in that the inlet connecting pipe is provided with a normally open first electromagnetic valve and the outlet connecting pipe is provided with a normally open second electromagnetic valve and a normally closed third electromagnetic valve. By the control of three electromagnetic valves to the main valve, a closing valve of the water pump starts, a main valve undergoes a double-aperture control, and the main valve realizes two closing stages control such as quick-closure and slow-closure. The invention has the advantages of energy saving, flow regulation and two-level flow outlet, elimination of a water hammer and the like. The invention is used for the outlet pipe control for water pump of water supply system in fire fighting and architecture.
Description
Technical field
The present invention relates to a kind of valve, particularly about a kind of control valve for water pump.The present invention is applicable to the control valve of fire-fighting, building water supply system exit of pump pipeline.
Background technique
In the pumping station pipe-line system of water supply systems such as fire-fighting, building, in order to improve the safe operation of pump, generally be employed in pump discharge installation and control valve, Slow Close is slow to be opened to reach, and eliminates water hammer, prevents that medium from flowing backwards.The kind of control valve for water pump is a lot; It like the patent No. 00224979.0 multifunctional water pump control valve; Include valve body, valve seat, valve rod, main valve plate, diaphragm, diaphragm pressing plate, pressing plate tightening nut assembly and valve gap etc. are provided with the diaphragm seat to form two chambers diaphragm control chamber between its valve gap and valve body; Have discharge orifice on the main valve plate, on the valve rod of main valve plate top the Slow Close valve plate is housed; The valve body outside is provided with the connecting tube that chamber under valve inlet and the diaphragm control chamber is ganged up, and also is provided with another connecting tube that chamber on valve export and the diaphragm control chamber is ganged up.Be installed in the water supply and drainage pumping plant pipe-line system, can eliminate water hammer effectively and reduce rate of fault.But this control valve is opened when water pump is opened simultaneously, and the starting power consumption of water pump is big, can not control and regulate main valve outlet conduit pressure medium, more can not control two other flow values of level of main valve output.
Summary of the invention
The objective of the invention is deficiency, provide a kind of valve that closes to start water pump, reduce the starting mode of pump power consumption, can regulate main valve rate of discharge, and the double-aperture adjustable slow-closure control valve for water pump of exportable two grades of level flows to the existing technology existence.
Technological scheme of the present invention comprises main valve and control gear; Said main valve is made up of valve body, flap, valve gap, valve rod; One diaphragm and spring are installed between valve body and valve gap; One control room is arranged between said diaphragm and the valve gap, and said control room is provided with and connects inlet connecting branch road and the outlet connecting pipe road that valve body is imported and exported respectively.Mainly be to be provided with first solenoid valve in the inlet connecting branch road; The outlet connecting pipe road is provided with second solenoid valve and the 3rd solenoid valve; First solenoid valve and second solenoid valve are for often opening, and the 3rd solenoid valve is normally closed, between first solenoid valve and control room, are provided with first one-way valve that leads to the control room; Second solenoid valve and the 3rd solenoid valve are connected in series, second one-way valve that leads to the control room at the two ends parallelly connected of second solenoid valve and the 3rd solenoid valve series arm; Valve gap upper end is provided with opening control device, and said opening control device is made up of scaffold and the control block that closes Valve travel control switch, the first aperture travel control switch, the second aperture travel control switch and be installed in the valve rod upper end that is installed on the scaffold; The normally open contact of the first aperture travel control switch be serially connected on the power circuit of first solenoid valve and second solenoid valve after a normally closed hand switch is connected; The timing closing normally open contact and the normally closed manual push switch of serial connection one relay in the power circuit of the 3rd solenoid valve, this relay power is controlled by the starting mode of pump switch; The normally closed interlock that closes the Valve travel control switch is serially connected on the power circuit of water pump.
The present invention's beneficial effect compared with prior art is: the delayed start-up of the 3rd solenoid valve in the outlet connecting pipe road makes water pump close the valve starting; Normally open contact through the first aperture travel control switch and normally closed hand switch series circuit are to the control of first solenoid valve and second power of electromagnetic valve; Automatic stabilisation is in this aperture position when making main valve be opened to first aperture; Press normally closed hand switch again, make main valve be opened to fully open position; To the control of the 3rd power of electromagnetic valve with close of the control of the normally closed interlock of Valve travel control switch, make main valve realize quick closing valve and two dwell periods of Slow Close through normally closed manual push switch to pump power.Have energy-conservation, Flow-rate adjustment and two grades of flows output, eliminate advantage such as water hammer.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Double-aperture adjustable slow-closure control valve for water pump as shown in Figure 1; Comprise main valve and control gear; Said main valve is made up of valve body 1, flap 2, valve gap 17, valve rod 19; One diaphragm 18 and spring is installed between valve body 1 and valve gap 17, constituted a control room 3 between said diaphragm 18 and the valve gap 17, said control room 3 is provided with and connects the inlet connecting branch road 15 and outlet connecting pipe road 20 that valve body 1 is imported and exported respectively.On inlet connecting branch road 15, be provided with first solenoid valve 14, outlet connecting pipe road 20 is provided with second solenoid valve 7 and the 3rd solenoid valve 5, the first solenoid valves 14 and second solenoid valve 7 for often opening, and promptly when dead electricity, is in opening state.The 3rd solenoid valve 5 is normally closed, promptly when dead electricity, is in closed condition.Between first solenoid valve 14 and control room 3, be provided with first one-way valve 16 that leads to control room 3, i.e. the outlet of first one-way valve 16 is the installation of 3 directions towards the control room, between first solenoid valve 14 and first one-way valve 16, is provided with needle-valve 13.Second solenoid valve 7 and the 3rd solenoid valve 5 are connected in series; Second one-way valve 8 that leads to control room 3 at the two ends parallelly connected of second solenoid valve 7 and the 3rd solenoid valve 5 series arms; The i.e. outlet of second one-way valve 8 is the installation of 3 directions towards the control room; Second ball valve 9 that the two ends of this second one-way valve 8 parallel connection one is normally closed is established first ball valve 4 often opened between second ball valve 9 and valve body 1 export.One pressure gauge 6 is installed between second solenoid valve 7 and the 3rd solenoid valve 5.Valve gap 17 upper ends are provided with opening control device, and said opening control device is made up of scaffold and the control block that closes Valve travel control switch 12, the first aperture travel control switch 11, the second aperture travel control switch 10 and be installed in valve rod 19 upper ends that is installed on the scaffold.The normally open contact of the first aperture travel control switch 11 be serially connected on the power circuit of first solenoid valve 14 and second solenoid valve 7 after a normally closed hand switch is connected; Said normally closed hand switch adopts the timing closing structure, after promptly manually normally closed hand switch being broken off through can auto-closing behind the delay time of setting.When valve rod 19 rises to its control block when pushing up the first aperture travel control switch 11; The normally open contact of the first aperture travel control switch 11 is closed; Make first solenoid valve 14 and second solenoid valve 7 get electric closing; Make the medium in the control room 3 not advance and to flow out, make the flap 2 stable first aperture positions that rest on.The size of aperture can be confirmed through the position of adjusting the first aperture travel control switch 11.When after main valve reaches the position of the first aperture travel control switch 11, needing to continue to open; Can manually press normally closed hand switch opens first solenoid valve 14 and second solenoid valve, 7 dead electricity;, make control block on the valve rod 19 push up the second aperture travel control switch 10 and send the standard-sized sheet signal to fully open position until main valve.The timing closing normally open contact and the normally closed manual push switch of serial connection one relay in the power circuit of the 3rd solenoid valve 5, this relay power is by the control of starting mode of pump switch, and the normally closed interlock that closes Valve travel control switch 12 is serially connected on the power circuit of water pump.When starting mode of pump, must establish by cable behind the delay time of the 3rd solenoid valve 5 through setting and open, the medium in the control room 3 of releasing is opened main valve, reaches to close valve startup water pump.Said normally closed manual push switch adopts the timing closing structure, can auto-closing through the delay time of setting after promptly manually normally closed manual push switch being broken off.In the time will closing main valve, press normally closed manual push switch and make the 3rd solenoid valve 5 dead electricity close the medium only import but no export in control room 3; Make the main valve quick closedown, when main valve was closed to 90%, the control block on the valve rod 19 contacted and closes Valve travel control switch 12; Its normally closed interlock is broken off; The water pump dead electricity is quit work, and main valve outlet medium is back in the control room 3 through outlet connecting pipe road 20, first ball valve 4, second one-way valve 8, and main valve is slowly closed.
Claims (1)
1. double-aperture adjustable slow-closure control valve for water pump; Comprise main valve and control gear; Said main valve is made up of valve body (1), flap (2), valve gap (17), valve rod (19); One diaphragm (18) and spring are installed between valve body (1) and valve gap (17), between said diaphragm (18) and the valve gap (17) control room (3) are arranged, said control room (3) are provided with inlet connecting branch road (15) and outlet connecting pipe road (20) that connect valve body (1) inlet/outlet respectively; It is characterized in that on inlet connecting branch road (15), being provided with first solenoid valve (14); Outlet connecting pipe road (20) is provided with second solenoid valve (7) and the 3rd solenoid valve (5); First solenoid valve (14) and second solenoid valve (7) are for often opening; The 3rd solenoid valve (5) is normally closed, between first solenoid valve (14) and control room (3), is provided with first one-way valve (16) that leads to control room (3); Second solenoid valve (7) and the 3rd solenoid valve (5) are connected in series, second one-way valve (8) that leads to control room (3) at the two ends parallelly connected of second solenoid valve (7) and the 3rd solenoid valve (5) series arm; Valve gap (17) upper end is provided with opening control device, said opening control device by scaffold and be installed on the scaffold close Valve travel control switch (12), the first aperture travel control switch (11), the second aperture travel control switch (10) and the control block that is installed on the valve rod (19) is formed; The normally open contact of the first aperture travel control switch (11) be serially connected on the power circuit of first solenoid valve (14) and second solenoid valve (7) after a normally closed hand switch is connected; The timing closing normally open contact and the normally closed manual push switch of serial connection one relay in the power circuit of the 3rd solenoid valve (5), this relay power is controlled by the starting mode of pump switch; The normally closed interlock that closes Valve travel control switch (12) is serially connected on the power circuit of water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101959493A CN101852202B (en) | 2010-06-07 | 2010-06-07 | Double-aperture adjustable slow-closure control valve for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101959493A CN101852202B (en) | 2010-06-07 | 2010-06-07 | Double-aperture adjustable slow-closure control valve for water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852202A CN101852202A (en) | 2010-10-06 |
| CN101852202B true CN101852202B (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101959493A Expired - Fee Related CN101852202B (en) | 2010-06-07 | 2010-06-07 | Double-aperture adjustable slow-closure control valve for water pump |
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| Country | Link |
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| CN (1) | CN101852202B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697205A (en) * | 2013-12-27 | 2014-04-02 | 安徽埃斯克制泵有限公司 | Automatic exhaust valve for outlet of self-priming pump |
| CN104197081B (en) * | 2014-08-21 | 2015-09-02 | 山东大学 | A kind of control valve flexibly connects external member |
| CN112943992B (en) * | 2021-02-09 | 2022-12-27 | 国家石油天然气管网集团有限公司华南分公司 | Multi-redundancy electromagnetic pilot axial flow safety type water hammer relief valve directly driven by gear motor |
| CN114215926B (en) * | 2022-02-21 | 2022-06-03 | 广东永泉阀门科技有限公司 | Control method of water attack-resistant micro-resistance type intelligent regulating water pump control valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2282624Y (en) * | 1996-11-08 | 1998-05-27 | 北京融洋技术研究所 | Buffer closing silencing check valve |
| US5931187A (en) * | 1998-03-26 | 1999-08-03 | Williams Instrument Incorporated | Valve system for restarting oscillating controller |
| CN2714914Y (en) * | 2004-07-08 | 2005-08-03 | 富莱通（武汉）阀业制造有限公司 | Zero resistance slow open and close check valve |
| JP2006009940A (en) * | 2004-06-25 | 2006-01-12 | Komatsu Ltd | Directional control valve |
| CN2797693Y (en) * | 2005-03-18 | 2006-07-19 | 湖南山河阀业有限公司 | Intelligent control valve for wter pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8235352B2 (en) * | 2007-05-21 | 2012-08-07 | Rain Bird Corporation | Diaphragm valve for irrigation systems |
-
2010
- 2010-06-07 CN CN2010101959493A patent/CN101852202B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2282624Y (en) * | 1996-11-08 | 1998-05-27 | 北京融洋技术研究所 | Buffer closing silencing check valve |
| US5931187A (en) * | 1998-03-26 | 1999-08-03 | Williams Instrument Incorporated | Valve system for restarting oscillating controller |
| JP2006009940A (en) * | 2004-06-25 | 2006-01-12 | Komatsu Ltd | Directional control valve |
| CN2714914Y (en) * | 2004-07-08 | 2005-08-03 | 富莱通（武汉）阀业制造有限公司 | Zero resistance slow open and close check valve |
| CN2797693Y (en) * | 2005-03-18 | 2006-07-19 | 湖南山河阀业有限公司 | Intelligent control valve for wter pump |
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| Publication number | Publication date |
|---|---|
| CN101852202A (en) | 2010-10-06 |
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Granted publication date: 20120815 Termination date: 20160607 |