CN101943272A

CN101943272A - Rotary cutting valve

Info

Publication number: CN101943272A
Application number: CN2009101399198A
Authority: CN
Inventors: 吴万江
Original assignee: JIANGSU JIANGHENG VALVE INDUSTRY Co Ltd
Current assignee: JIANGSU JIANGHENG VALVE INDUSTRY Co Ltd
Priority date: 2009-07-10
Filing date: 2009-07-10
Publication date: 2011-01-12

Abstract

The invention discloses a rotary cutting valve. A left valve body, an intermediate body and a right valve body form a housing; a handle, a valve rod, a gland cover, the right valve body and the left valve body are connected; the valve rod is inserted into the positioning hole of the left valve body; a fixing shaft passes through a splint and a valve clack on the two sides; the two ends of the fixing shaft are inserted into the positioning holes of the left and right valve bodies; the right valve body, a right valve seat, the valve clack, a left valve seat, a cylindrical compression spring and the left valve body are connected; the splint and the valve clack are connected; a hexagonal bolt, a belleville spring and a hexagonal nut serve as fasteners which is a structure floating with the position of the valve clack; the outer circles of the left and right valve seats and the left and right valve bodies and the splint are sealed by O-shaped sealing rings; the valve rod and the valve clack transversely rotate around a gear pair; the splint is a semicircular plate of which the upper part is provided with a medium channel hole, the lower part is provided with a fixing shaft hole and the two sides are provided with blind plates; the valve clack is a sector plate of which the upper part is provided with a medium channel hole, the right side is provided with a blind plate and the lower part is provided with a fixing shaft hole; the outer side of the shaft hole is provided with a semicircular gear; and the valve rod is also provided with a semicircular gear. The valve can ensure that deposit or scale is not generated in the inner cavity.

Description

Rotating cutting valve

Affiliated technical field

But the present invention relates to the valve of interior fouling of a kind of drain body cavity and precipitation.

Background technique

Be called ball valve with spheroid as the valve of closure member, simple to operation quick because of it, be widely used in the industrial production pipelines such as chemical industry, oil, metallurgy, electric power, the energy, it is by the rotation of control spheroid, only need half-twist, within several seconds, can realize the keying of valve.But in the process that spheroid is closed or opened, medium will enter in the inner chamber of valve body, and medium is under the state of two phase flow, and precipitation, fouling cause spheroid to rotate, thereby cause whole valve invalidation in the body cavity of being everlasting, and influence the normal operation of pipeline.

Summary of the invention

In order to overcome existing ball valve causes precipitation and fouling easily at body cavity problem, the invention provides a kind of valve, do not allow form fouling and precipitation in the valve body, keep valve channel unimpeded effectively, thereby guarantee that pipeline normally moves, also have simultaneously with ball valve same keying characteristics are rapidly arranged.

Technical solution of the present invention is: right valve barrel, intermediate, left valve barrel is formed shell, handle, valve rod, Gland, right valve barrel, left valve barrel connects, valve rod is inserted in the positioning hole of left valve barrel, stationary axle passes the clamping plate of both sides, flap, two ends are inserted in a left side, in the positioning hole of right valve barrel, hexagon head bolt, butterfly spring, hexagon nut is made fastening piece, connecting cleat and flap, it is the structure of floating with flap position, right valve barrel, right valve seat, flap, left side valve seat, cylindrical compression spring, left valve barrel connects, a left side, a right valve seat cylindrical and a left side, the sealing of " O " shape seal ring is arranged, valve rod between right valve barrel and clamping plate, flap is done horizontal transmission with gear pair; Clamping plate are semicircular plate, and the medium channel hole is arranged at top, and fixed shaft hole is arranged at the bottom, and both sides are blind plate, and flap is a sector, and the medium channel hole is arranged at top, and the right side is a blind plate, and fixed shaft hole is arranged at the bottom, and the axis hole outside is the semi-circumference gear, also is the semi-circumference gear on the valve rod; Working principle is like this: handle with sleeve, drive valve rod, flap rotation, when the blind plate of flap is blocked valve seat through-hole, valve ends, half-twist, when the flap through hole forwards the valve seat through-hole position to, valve is conducting then, because the effect of butterfly spring, and the effect of pressure spring make flap and clamping plate and left and right valve seat be in fit-state, just allow flap rotate, stop solid particle to leak the gap again, the O-ring seals sealing is arranged between valve seat and valve body, clamping plate, thereby guarantee the proper functioning of valve from flap and clamping plate, valve seat.

The invention has the beneficial effects as follows,, only need half-twist, can realize the keying of valve, open and close rapidly the same with ball valve because flap opens and closes the realization that rotatablely moves; Because butterfly spring is to the clamping plate elastic force, pressure spring makes clamping plate and left and right valve seat and flap be in fit-state to the elastic force of valve seat, both can allow flap rotate freely, and successfully stops solid particle to leak from the gap again; The O-ring seals sealing is arranged between valve seat and valve body, clamping plate, do not produce precipitation and fouling in the body cavity all along, valve is in steady-working state.

Description of drawings

The present invention is further described below in conjunction with accompanying drawing.

Fig. 1 is a structural drawing of the present invention.

Fig. 2 is a right elevation.

Fig. 3 is the flap structural drawing.

Fig. 4 is clamp region figure.

Fig. 5 is stem structure figure.

Fig. 6 is the valve rod sectional view.

1. handles among the figure, 2. Gland, 3. right valve barrel, 4. intermediate, 5. left valve barrel, 6. valve rod, 7. flap, 8. stationary axle, 9. clamping plate, 10. right valve seat, 11. left valve seats, 12. cylindrical compression springs, 13. hexagon head bolts, 14. butterfly springs, 15. hexagon nuts.

Embodiment

As shown in the figure, right valve barrel 3, intermediate 4, left valve barrel 5 is formed shell, handle 1, Gland 2, right valve barrel 3, left valve barrel 5, valve rod 6 connects, valve rod 6 is inserted in left valve barrel 5 positioning holes, stationary axle 8 passes the clamping plate 9 of both sides, flap 7, two ends are inserted in right valve barrel 3, in the positioning hole of left valve barrel 5, right valve barrel 3, right valve seat 10, flap 7, left side valve seat 11, cylindrical compression spring 12, left valve barrel 5 connects, hexagon head bolt 13, butterfly spring 14, hexagon nut 15 is made fastening piece, connecting cleat 9, flap 7, right valve seat 10, left side valve seat 11 cylindricals and right valve barrel 3,9 on left valve barrel 5 and clamping plate have the sealing of " O " shape seal ring, valve rod 6, flap 7 is done horizontal transmission with gear pair; Clamping plate 9 are semicircular plate, and top is the medium channel hole, and the bottom is a fixed shaft hole, and both sides are blind plate, and flap 7 is a sector, and the medium channel hole is arranged at top, the right side blind plate, and the bottom is a fixed shaft hole, the axis hole outside is the semi-circumference gear, also is the semi-circumference gear on the valve rod 6.

Claims

1. rotating cutting valve, by right valve barrel (3), intermediate (4), left valve barrel (5) is formed shell, it is characterized in that: handle (1), Gland (2), right valve barrel (3), left valve barrel (5), valve rod (6) connects, valve rod (6) is inserted in left valve barrel (5) positioning hole, stationary axle (8) passes the clamping plate (9) of both sides, flap (7), two ends are inserted in right valve barrel (3), in the positioning hole of left valve barrel (5), right valve barrel (3), right valve seat (10), flap (7), left side valve seat (11), cylindrical compression spring (12), left valve barrel (5) connects, hexagon head bolt (13), butterfly spring (14), hexagon nut (15) is made fastening piece, connecting cleat (9), flap (7), it is the structure of floating with flap position, right valve seat (10), left side valve seat (11) cylindrical and right valve barrel (3), the sealing of " O " shape seal ring is arranged, valve rod (6) between left valve barrel (5) and clamping plate (9), flap (7) is done horizontal transmission with gear pair; Clamping plate (9) are semicircular plate, and top is the medium channel hole, and the bottom is a fixed shaft hole, and both sides are blind plate, flap (7) is a sector, and the medium channel hole is arranged at top, the right side blind plate, the bottom is a fixed shaft hole, and the axis hole outside is the semi-circumference gear, also is the semi-circumference gear on the valve rod (6).