CN202402651U

CN202402651U - Straight-flow stop valve sealed by utilizing fluid pressure and elastic valve seat

Info

Publication number: CN202402651U
Application number: CN2011204499006U
Authority: CN
Inventors: 戴学祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-07
Filing date: 2011-11-07
Publication date: 2012-08-29
Anticipated expiration: 2021-11-07

Abstract

The utility model discloses a straight-flow stop valve sealed by utilizing fluid pressure and an elastic valve seat. A support body additionally arranged on a round table of a valve clack is connected with the round table through a reinforcing plate; one end of the support body is supported in a ring-shaped groove protruding outwards from the upper part of a valve body; a pin shaft is mutually connected with a hole on the support body through a shaft hole on the valve body; a connecting body extending out to one side is arranged at one side of a seal body on the valve clack and at an upward part of a central circle; a notch at the end part of a valve rod is matched with two flat surfaces of the connecting body, wherein a straight notch is mutually connected with a pin arranged in a pin hole at the tail end of the valve rod; and when the valve is opened and closed, raising and lowering procedures of a chute in the connecting body on the valve clack are finished by the guide of the pin on the valve rod.

Description

Utilize the Oblique Stop Valve of hydrodynamic pressure and elastic seat sealing

Technical field

The invention belongs to valve, relate in particular to utilize the Oblique Stop Valve of hydrodynamic pressure and elastic seat sealing.

Background technique

General valve has five big types basically, by the ordering of use amount is: 1, gate valve 2, stop valve, 3 safety check, 4, ball valve, 5, butterfly valve.This wherein, ball valve and butterfly valve are the valves faster of technical development in recent years, and a lot of new designs are arranged, the progress of the later two types of valves of institute is very fast, big to the contribution in market, demand is in further lifting.And a large amount of wide gate valve and the stop valves of use face do not have too big change basically, and stop valve especially still rests on long historical stage of the last century.

Industrial stop valve such as oil and petrochemical industry is divided into two types usually; The one, vertically arranged stop valve; The 2nd, the Oblique Stop Valve that Y shape is installed, as shown in Figure 3 in GB/T12235-2007 " oil, petrochemical industry and related industries are with steel stop valve and the Lift check valve " standard, the design of Y shape valve is the fluid resistance in order to reduce valve as far as possible and to pass through medium the time; The pressure in downstream is remained in the normality scope; Be unlikely to after a plurality of such valves are installed, not produce bigger pressure and fall, satisfy normal production, to reach the purpose of energy saving.Advantage is conspicuous; Deficiency is to operate not to be easily to receive the influence in space, position, place bigger, and difficulty was many when especially production automation control aspect required valve operation to be Electric actuator; Perhaps just cannot implement; Therefore, reach the purpose that this valve reduces fluid resistance and still receive very big restriction, use not reach gratifying effect.

Summary of the invention

Form by valve body (1), flap (2), valve gap (3), valve rod (4), Stem Mut (8) and handwheel (10).

The seal of flap (2) is the additional cylindrical support (2-1) that a round platform (2-8), side face upper end have mind-set both sides, a Yanzhong to be shaped; Described support (2-1) joins by gusset (2-3) with both, outwards in the semi-round ring shape groove of (1-3) of protrusion, bearing pin (5) interconnects through the hole (2-2) on axis hole on the valve body (1) and the support (2-1) an end expansion bearing on valve body (1) top.

The side that flap (2) is gone up round platform (2-8) is provided with the connecting body (2-5) that stretches out to a side in center circle to the upper part; Notch (4-3) in valve rod (4) major part (4-2) cooperates with two planes of described connecting body (2-5); Wherein, chute (2-6) interconnects with the pin (6) of the pin-and-hole (4-4) that places valve rod (4) end.

Beneficial effect

1. reduction fluid resistance: straight-through runner, reduce fluid resistance and just mean the consumption that has reduced the energy, realize that the carbon emission target has direct effect, for stop valve is expanded more usage space.

(this section grid remove)

2. easy for installation: the inclined design mode that changes the valve gap of traditional Oblique Stop Valve is not easy to operate and the putting of peripheral hardware automatic control equipment, and valve gap is the setting that vertical structure can realize the Electric actuator of valve easily with valve body.

3. operational torque is little: valve relies on the wiper seal of the fluid of pipeline itself, and therefore, required steering force is little.

Description of drawings

The piece mark that icon is relevant is: 1, valve body, 2, flap, 3, valve gap, 4, valve rod, 5, axle, 6, pin, 7, handwheel, 8, Stem Mut.

Embodiment

Of the present invention these are described in detail through figs with other purpose advantage.

Fig. 1 is the sectional view that the 1st example of enforcement is utilized the Oblique Stop Valve of hydrodynamic pressure and elastic seat sealing.

Fig. 2 is the perspective view that Fig. 1 flap is connected with valve rod.

Embodiment

Embodiment 1 is as depicted in figs. 1 and 2; The seal of flap (2) is the additional cylindrical support (2-1) that a round platform (2-8), side face upper end have mind-set both sides, a Yanzhong to be shaped; Described support (2-1) joins by gusset (2-3) with both, outwards in the semi-round ring shape groove of (1-3) of protrusion, bearing pin (5) interconnects through the hole (2-2) on axis hole on the valve body (1) and the support (2-1) an end expansion bearing on valve body (1) top.

Sealing plane (4-1) when the valve standard-sized sheet on the valve rod (4) contacts the sealing of going up that becomes valve with plane (1-2) on the valve body (1).

During valve opening and closing, the chute (2-6) in the connecting body (2-5) on the flap (2) is accomplished the program that rises and descend under the guiding of the pin (6) on the valve rod (4).

Claims

1. direct current stop valve that utilizes the sealing of hydrodynamic pressure and elastic seat; Comprise by valve body (1), flap (2), valve gap (3), valve rod (4), Stem Mut (8) and handwheel (10) and forming; It is characterized in that: the seal of flap (2) is the additional cylindrical support (2-1) that a round platform (2-8), side face upper end have mind-set both sides, a Yanzhong to be shaped; Described support (2-1) joins by gusset (2-3) with both, outwards in the semi-round ring shape groove of (1-3) of protrusion, bearing pin (5) interconnects through the hole (2-2) on axis hole on the valve body (1) and the support (2-1) an end expansion bearing on valve body (1) top.

2. the direct current stop valve that utilizes hydrodynamic pressure and elastic seat sealing according to claim 1; It is characterized in that: the side that said flap (2) is gone up round platform (2-8) is provided with the connecting body (2-5) that stretches out to a side in center circle to the upper part; Notch (4-3) in valve rod (4) major part (4-2) matches with two planes of described connecting body (2-5); Wherein, chute (2-6) interconnects with the pin (6) of the pin-and-hole (4-4) that places valve rod (4) end.