CN2331810Y - Multifunction water pump control valve - Google Patents

Abstract

The utility model relates to a multifunction water pump control valve, comprising a valve body, a valve seat, a valve rod, a main valve plate, a spring, a diaphragm, a diaphragm pressing plate, a retaining nut component of the pressing plate, a valve cap, etc. The utility model is characterized in that a diaphragm seat is arranged between the valve cap and the valve body to form a double chamber diaphragm control cavity, a discharge hole is arranged on the main valve plate, and a slow closure valve plate is arranged on the valve rod above the main valve plate. A regulating valve, a filter and a check valve which make the inlet of the valve and the lower chamber of the diaphragm control cavity communicated are arranged on the outer part of the valve body, and a control valve and a filter which make the outlet of the valve and the upper chamber of the diaphragm control cavity communicated are also arranged on the outer part of the valve body. The utility model can be installed in the pipeline system of a water supply and drain pumping station, effectively eliminates water hammer and reduces failure rate.

Description

Multifunctional water pump control valve

The utility model relates to a kind of one-way valve by fluid-actuated, also belongs to a kind of multi-functional valve operating control device by fluid-actuated, further is meant a kind of multifunctional water pump control valve.

In water supply and drainage pumping plant pipe-line system, operation control for convenience, the most common mounting structural mode is that mortor operated valve and buffer valve are installed on pumping line.But the defective that this mounting structural mode exists is, the rate of fault height of electric operating control gear own, and it is very unreliable that Slow Close is eliminated water-hammer device work, thereby influence the normal operation of whole water supply and drainage pumping plant pipe-line system.

For this reason, the purpose of this utility model, be provide a kind of can be automatically by the water pump working specification carry out work, greatly reduce pipe-line system operation troubles rate and effectively Slow Close eliminate the multifunctional water pump control valve of water hammer.

Solution of the present utility model is as follows.It still comprises the valve body that existing similar valve has, valve seat, valve rod, the main valve plate, spring, diaphragm, the diaphragm pressing plate, pressing plate tightening nut assembly and valve gap etc., offer the valve inlet and the valve export that are connected with the valve inner cavity on the valve body, valve seat is fixed in the valve inner cavity and with valve inlet and valve export and separates, valve gap is equipped with in the top of another valve body openings that is connected with the valve inner cavity, be equiped with valve rod in the valve inner cavity of valve gap below, valve rod top with pressing plate tightening nut assembly fixing be enclosed within on the valve rod on, following diaphragm pressing plate and clamping are last, diaphragm between the following diaphragm pressing plate, the stem lower portion cunning is passed the perforate at valve seat center, on the valve seat valve rod up successively kink the main valve plate and the spring that can slide on valve rod arranged, feature part of the present utility model is, valve gap below also is equiped with the diaphragm seat that slides on the valve rod and be connected mutually with valve body, the periphery of the diaphragm of pressing diaphragm panel area places on the diaphragm seat, valve gap is pressing solidly the periphery of diaphragm and with screw nut assembly valve gap is being connected mutually with the diaphragm seat, the top of spring contacts with the bottom end of diaphragm seat, space between valve gap and the diaphragm seat forms the diaphragm control chamber, and diaphragm is divided into the diaphragm control chamber that under the chamber and diaphragm control chamber the chamber on the diaphragm control chamber; Have the discharge orifice of run-through board face on the main valve plate, fixed cover is equipped with the Slow Close valve plate that is arranged in the spring inner cavity on the valve rod of main valve plate top; In the valve body outside, having successively, serial connection is communicated with modulating valve, filter and the safety check of getting up, the other end of modulating valve is connected with valve inlet by the perforate on pipeline and the valve body, and the other end of safety check is connected with chamber under the diaphragm control chamber by the perforate on pipeline and the diaphragm seat; In the valve body outside, also be equiped with serial connection and be communicated with the control valve and the filter of getting up, the other end of control valve is connected with valve export by the perforate on pipeline and the valve body, and the other end of filter is connected with chamber on the diaphragm control chamber by the perforate on pipeline and the valve gap.

The utility model with said structure irritating in (without bottom valve) formula water pump mounting type (referring to Fig. 2) certainly, can be realized its using effect.During installation, the series connection of the utility model multifunctional water pump control valve turns in the pipeline that connects behind the water pump water outlet end.Before the starting mode of pump, the press water of valve export is pushed down main valve plate and Slow Close pressing plate, and enters chamber on the diaphragm control chamber by the external pipeline that control valve and filter are ganged up, because chamber and main valve plate water entering surface do not have pressure under the diaphragm control chamber, valve is in closed condition.Behind the starting mode of pump, the valve inlet water pressure raises, and press water produces on the one hand and promotes the power that the main valve plate is opened, and the valve body external pipeline of ganging up by modulating valve, filter, safety check enters chamber under the diaphragm control chamber on the other hand.Because turn on pump pressure is greater than ductwork pressure, the press water of chamber just flows back to valve export by the outer connecting leg road of valve body that filter and control valve are ganged up on the diaphragm control chamber, and the regulating and controlling valve is opened valve under setting speed.After water pump was shut down, the valve inlet water pressure reduced, and when approaching zero, the main valve plate that cooperates with valve stem slides is closed rapidly under the effect of self gravitation and spring force, and the discharge orifice of offering on the main valve plate is to weaken impact of water hammer power.After the main valve plate is closed, the valve inlet decompression, the press water of valve export enters chamber on the diaphragm control chamber, promotes the diaphragm pressing plate, drives valve rod the Slow Close valve plate that is fixed on the valve rod is slowly closed; Because the press water of valve export enters chamber on the diaphragm control chamber, received impact of water hammer power effectively simultaneously.

By last analysis as seen, the empty system of the utility model multifunctional water pump valve need not any electric device, need not other power, just utilize the pressure of water pump start and stop to change naturally, just can carry out work by the water pump working specification, and have that speed is closed, Slow Close, energy-absorbing chamber (being the diaphragm control chamber) three elimination water hammer steps designs, so it can accomplish that Slow Close is eliminated water hammer effectively, stable work in work reduces the operation troubles rate of water supply and drainage pumping plant pipe-line system greatly.It is specially adapted to the automatic water supply control system.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the embodiment of a kind of concrete structure of the utility model;

The schematic representation that Fig. 2 is used in irritating (without bottom valve) formula water pump mounting type certainly for Fig. 1 the utility model.

Referring to Fig. 1 and Fig. 2.The structure of the utility model multifunctional water pump control valve, still comprise the valve body 1 that existing similar valve has, valve seat 2, valve rod 3, main valve plate 4, spring 5, diaphragm 6, diaphragm pressing plate 7, pressing plate tightening nut assembly 8 and valve gap 9 etc., offer the valve inlet 101 and the valve export 102 that are connected with valve body 1 internal cavities on the valve body 1, valve seat 2 is connected in valve body 1 internal cavities and with valve inlet 101 and valve export 102 and separates, valve gap 9 is equipped with in the top of another valve body openings that is connected with valve body 1 internal cavities, be equiped with valve rod 3 in valve body 1 internal cavities of valve gap 9 belows, valve rod 3 tops with pressing plate tightening nut assembly 8 fixing be enclosed within on the valve rod 3 on, following two diaphragm pressing plates 7 and clamping are last, diaphragm 6 between following two diaphragm pressing plates 7, diaphragm 6 adopts rubber material to make, the perforate that valve rod 3 bottom cunnings are passed valve seat 2 centers, on valve seat 2 valve rod 3 up successively sliding sleeve the main valve plate 4 and the spring 5 that can slide on valve rod 3 arranged.The utility model feature part structurally is, valve gap 9 belows also are equiped with the diaphragm seat 10 that slides on the valve rod 3 and be connected mutually with valve body 1, the periphery of the diaphragm 6 around the diaphragm pressing plate 7 places on the diaphragm seat 10, valve gap 9 is pressing solidly the periphery of diaphragm 6 and with screw nut assembly valve gap 9 is being connected mutually with diaphragm seat 10, the top of spring 5 contacts with the bottom end of diaphragm seat 10, space between valve gap 9 and the diaphragm seat 10 forms the diaphragm control chamber, and diaphragm 6 is divided into the diaphragm control chamber that under the chamber 61 and diaphragm control chamber chamber 62 on the diaphragm control chamber; Offer the discharge orifice 41 of run-through board face on the main valve plate 4, fixed cover is equipped with the Slow Close valve plate 11 that is arranged in spring 5 internal cavities on the valve rod 3 of main valve plate 4 tops; In valve body 1 outside, having successively, serial connection is communicated with modulating valve 12, filter 13 and the safety check 14 of getting up, the other end of modulating valve 12 is connected with valve inlet 101 by the perforate 103 on pipeline and the valve body 1, and the other end of safety check 14 is connected with chamber 62 under the diaphragm control chamber by the perforate 100 on pipeline and the diaphragm seat 10; In valve body 1 outside, also be equiped with serial connection and be communicated with the control valve 15 and the filter 16 of getting up, the other end of control valve 15 is connected with valve export 102 by the perforate 104 on pipeline and the valve body 1, and the other end of filter 16 is connected with chamber 61 on the diaphragm control chamber by the perforate 91 on pipeline and the valve gap 9.Modulating valve 12 and control valve 15 all can adopt Z15W-10T type blass stop valve, and safety check 14 can adopt H14T-10 type brass nonreturn valve, and filter 13 all can adopt the YGL13-16T type filter with filter 16, and above valve and filter are all commercially available.

Claims (1)

1, a kind of multifunctional water pump control valve, include valve body, valve seat, valve rod, the main valve plate, spring, diaphragm, the diaphragm pressing plate, pressing plate tightening nut assembly and valve gap etc., offer the valve inlet and the valve export that are connected with the valve inner cavity on the valve body, valve seat is fixed in the valve inner cavity and with valve inlet and valve export and separates, valve gap is equipped with in the top of another valve body openings that is connected with the valve inner cavity, be equiped with valve rod in the valve inner cavity of valve gap below, valve rod top with pressing plate tightening nut assembly fixing be enclosed within on the valve rod on, following diaphragm pressing plate and clamping are last, diaphragm between the following diaphragm pressing plate, the stem lower portion cunning is passed the perforate at valve seat center, on the valve seat valve rod up successively kink the main valve plate and the spring that can slide on valve rod arranged, it is characterized in that:

A) valve gap below also is equiped with the diaphragm seat that slides on the valve rod and be connected mutually with valve body, the periphery of the diaphragm of pressing diaphragm panel area places on the diaphragm seat, valve gap is pressing solidly the periphery of diaphragm and with screw nut assembly valve gap is being connected mutually with the diaphragm seat, the top of spring contacts with the bottom end of diaphragm seat, space between valve gap and the diaphragm seat forms the diaphragm control chamber, and diaphragm is divided into the diaphragm control chamber that under the chamber and diaphragm control chamber the chamber on the diaphragm control chamber;

B) have the discharge orifice of run-through board face on the main valve plate, fixed cover is equipped with the Slow Close valve plate that is arranged in the spring inner cavity on the valve rod of main valve plate top;

C) in the valve body outside, having successively, serial connection is communicated with modulating valve, filter and the safety check of getting up, the other end of modulating valve is connected with valve inlet by the perforate on pipeline and the valve body, and the other end of safety check is connected with chamber under the diaphragm control chamber by the perforate on pipeline and the diaphragm seat;

D) in the valve body outside, also be equiped with serial connection and be communicated with the control valve and the filter of getting up, the other end of control valve is connected with valve export by the perforate on pipeline and the valve body, and the other end of filter is connected with chamber on the diaphragm control chamber by the perforate on pipeline and the valve gap.