CN1884886A - Magnetic levitation resistance-reducing control valve for water pump - Google Patents
Magnetic levitation resistance-reducing control valve for water pump Download PDFInfo
- Publication number
- CN1884886A CN1884886A CN 200610043100 CN200610043100A CN1884886A CN 1884886 A CN1884886 A CN 1884886A CN 200610043100 CN200610043100 CN 200610043100 CN 200610043100 A CN200610043100 A CN 200610043100A CN 1884886 A CN1884886 A CN 1884886A
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- valve
- valve body
- hydraulic cylinder
- flap
- water
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- Details Of Valves (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention relates to a magnetic suspension drag reduction water pump control valve, which comprises; a valve body, a valve cover, a valve base and hydraulic cylinder fixed on the valve body, wherein the film upper compress ring, film and film lower compress ring are inside the hydraulic cylinder, to be fixed with piston rod, magnetic suspension element and small valve fin inside the valve body, to form motion element; the large valve fin with discharge hole is sheathed on the piston rod; the magnetic suspension element is mounted above the large valve fin; two ends of water inlet tube with adjusting valve are through to the valve inlet and the lower part of hydraulic cylinder; two ends of water outlet tube with checking valve are through to the outlet of valve body and valve cover. The invention can reduce the resistance of large valve fin on water flow, to eliminate water loose and large energy consumption, and avoid liquid reflux and noise.
Description
Technical field
The present invention relates to a kind of control valve for water pump, relate in particular to a kind of magnetic levitation resistance-reducing control valve for water pump that generally is used for water-heat supply system.
Background technique
In water-carriage system, often because of the unexpected termination of pumping of reasons such as dead electricity, cause the interior water of pipeline to flow backwards rapidly, thereby cause water pump reversing and pump-stopping water hammer, make the hurried lifting of manifold pressure, pipeline and water pump assembly vibration even destruction.
Existing control valve for water pump has been obtained better achievement aspect the pump-stopping water hammer subduing, but perfect not enough.Major defect is that its flap is dashed by current fully, and resistance is excessive in the water delivery process, causes the pipeline energy consumption too high.
Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art, provide a kind of have prevent in the water-heat supply system that liquid flows backwards and subdue that water hammer boosts and the magnetic levitation resistance-reducing control valve for water pump of the effect of noise.This control valve for water pump reduces the drag effect of big valve flap to current by the magnetic attraction effect of magnetic suspension assembly, thereby eliminates the loss of head and the excessive technological deficiency of energy consumption of such valve.
For achieving the above object, the technical solution adopted in the present invention is: a kind of magnetic levitation resistance-reducing control valve for water pump, it comprises an airtight fluid passage that is made of valve body 1 and oil hydraulic cylinder 8, valve seat 2 is fixed on the valve body 1, it is characterized in that: described oil hydraulic cylinder 8 is fixed on the valve body 1 by valve gap 9, pressure ring 15 is positioned at oil hydraulic cylinder 8 under diaphragm upper press ring 13, diaphragm 14 and the diaphragm, and with the piston rod 10, magnetic suspension assembly 5 and little flap 4 affixed being integral that are installed in the valve body 1, component movement assembly; The big valve flap 3 that has pressure relief opening is enclosed within on the piston rod 10, magnetic suspension assembly 5 is installed in big valve flap 3 tops and fixes as one with piston rod 10, penstock 6 two ends that modulating valve 7 is housed are communicated with the bottom of valve body 1 entrance point and oil hydraulic cylinder 8 respectively, and water output duct 12 two ends that maintenance valve 11 is housed are communicated with the outlet end and the valve gap 9 of valve body 1 respectively.
The present invention compared with prior art has the following advantages: the present invention is the magnetic attraction effect by the magnetic suspension assembly, reduces the drag effect of big valve flap to current, thereby eliminates the loss of head and the excessive technological deficiency of energy consumption of such valve; When liquid in pipeline during reverse flow, this valve can automatically the two-stage closes first quick and back slow, thereby reduce the reversing speed of the refluence water yield and reduction water pump effectively, and suppress the pressure surge that pump-stopping water hammer causes, have and prevent in the water-heat supply system that liquid flows backwards and subdue that water hammer boosts and the effect of noise.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
According to shown in Figure 1, the present invention includes an airtight fluid passage that constitutes by valve body 1 and oil hydraulic cylinder 8, valve seat 2 is fixed on the valve body 1, described oil hydraulic cylinder 8 is fixed on the valve body 1 by valve gap 9, pressure ring 15 is positioned at oil hydraulic cylinder 8 under diaphragm upper press ring 13, diaphragm 14 and the diaphragm, and with the piston rod 10, magnetic suspension assembly 5 and little flap 4 affixed being integral that are installed in the valve body 1, component movement assembly; The big valve flap 3 that has pressure relief opening is enclosed within on the piston rod 10, magnetic suspension assembly 5 is installed in big valve flap 3 tops and fixes as one with piston rod 10, penstock 6 two ends that modulating valve 7 is housed are communicated with the bottom of valve body 1 entrance point and oil hydraulic cylinder 8 respectively, and water output duct 12 two ends that maintenance valve 11 is housed are communicated with the outlet end and the valve gap 9 of valve body 1 respectively.The magnetic attraction direction of 5 pairs of big valve flaps 3 of described magnetic suspension assembly makes progress, and the size of magnetic attraction poor less than the deadweight of big valve flap 3 and the buoyancy of big valve flap 3 in hydrostatic.
Behind starting mode of pump, magnetic suspension control valve for water pump of the present invention makes oil hydraulic cylinder 8 bottoms produce pressure by penstock 6, diaphragm 14 moves on common together with piston rod 10, little flap 4 and magnetic suspension assembly 5 etc. under pressure, 3 of big valve flaps are removed under the acting in conjunction of magnetic suspension assembly 5 and current and are opened, then flow out oil hydraulic cylinder 8 gradually by the water in valve gap 9 and the oil hydraulic cylinder 8 common oil hydraulic cylinder epicoeles of forming by water output duct 12, when diaphragm 14 and assembly thereof rise to top dead center, valve wide open, big valve flap 3 also rises to the design peak, the abundant overcurrent of valve.Normally in service, 16 pairs of big valve flaps 3 of the magnetic patch in the magnetic suspension assembly 5 apply a magnetic attraction that makes progress, and it is reduced active forces of current, and this magnetic attraction is slightly less than the poor of the deadweight of big valve flap 3 and its buoyancy in hydrostatic.When water pump stops, water in the valve body 1 is with reverse flow, big valve flap 3 is closed rapidly under the effect of reverse flow, be pressed on the valve seat 2, thereby stop big water gaging reverse flow, but low amounts of water still can flow backwards by the relief hole on the big valve flap 3, simultaneously, this relief hole discharges the effect of too high water hammer pressure in addition, meanwhile, the entrance point of valve body 1 and oil hydraulic cylinder 8 decompressions, diaphragm 14 and assembly thereof drive little flap 4 and move down, and beginning is slowly closed, and realize on the big valve flap 3 closing fully until being pressed on, the speed controlling that the speed that little flap 4 is slowly closed is flowed out by oil hydraulic cylinder 8 bottom water, this water flows out speed can be adjusted in advance by the modulating valve 7 of penstock 6.
Claims (2)
1, a kind of magnetic levitation resistance-reducing control valve for water pump, it comprises an airtight fluid passage that is made of valve body (1) and oil hydraulic cylinder (8), valve seat (2) is fixed on the valve body (1), it is characterized in that: described oil hydraulic cylinder (8) is fixed on the valve body (1) by valve gap (9), pressure ring (15) is positioned at oil hydraulic cylinder (8) under diaphragm upper press ring (13), diaphragm (14) and the diaphragm, and with the piston rod (10), magnetic suspension assembly (5) and affixed being integral of little flap (4) that are installed in the valve body (1), component movement assembly; The big valve flap (3) that has pressure relief opening is enclosed within on the piston rod (10), magnetic suspension assembly (5) is installed in big valve flap (3) top and fixes as one with piston rod (10), penstock (6) two ends that modulating valve (7) are housed are communicated with the bottom of valve body (1) entrance point and oil hydraulic cylinder (8) respectively, and water output duct (12) two ends that maintenance valve (11) is housed are communicated with the outlet end and the valve gap (9) of valve body (1) respectively.
2, magnetic levitation resistance-reducing control valve for water pump according to claim 1, it is characterized in that: described magnetic suspension assembly (5) makes progress to the magnetic attraction direction of big valve flap (3), and the size of magnetic attraction poor less than the deadweight of big valve flap (3) and the buoyancy of big valve flap (3) in hydrostatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043100 CN1884886A (en) | 2006-06-30 | 2006-06-30 | Magnetic levitation resistance-reducing control valve for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043100 CN1884886A (en) | 2006-06-30 | 2006-06-30 | Magnetic levitation resistance-reducing control valve for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1884886A true CN1884886A (en) | 2006-12-27 |
Family
ID=37583169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610043100 Pending CN1884886A (en) | 2006-06-30 | 2006-06-30 | Magnetic levitation resistance-reducing control valve for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1884886A (en) |
-
2006
- 2006-06-30 CN CN 200610043100 patent/CN1884886A/en active Pending
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