CN206845938U - A kind of cartridge type manual throttle valve of new architecture - Google Patents

Abstract

A kind of cartridge type manual throttle valve of new architecture, valve element is a hollow cylinder part, is assigned into the centre bore of bonnet bottom surface, passes through its relatively thick, middle thinner stepped hole up and down, it is linked together with fillister head screw and the socket cap and screwed hole of valve rod lower end, then with holding screw locking radial；At the center of fillister head screw, the pressure compensation opening of an insertion is drilled with, top and a radial hole by valve rod lower end screwed hole, is communicated with the space formed above the hypomere of the centre bore of bonnet bottom surface and valve rod, valve element.In addition, handwheel is fixed on to the top of drive nut, valvular switch display cover is filled in the upper end of handwheel, drive nut and valve rod, prevents its transfer with two symmetrical elongated slots and cylindrical end screw in the hypomere of valve rod, valve seat is fixed in valve body with clamping nut and O-ring seal；While cartridge type throttling valve performance is improved, production cost reduce further.

Description

A kind of cartridge type manual throttle valve of new architecture

Technical field

It the utility model is related to " the cartridge type choke valve " used in petroleum machinery and other industrial trades.

Background technology

Cartridge type choke valve is in petroleum machinery and other industrial equipments, is commonly used for adjusting one kind of piping flow and pressure Choke valve, be a kind of by changing fluid resistance come the choke valve of regulating flow, although its control flow precision it is not high, But there is the characteristics of flow resistance is small, vibrations and noise are small, in it not seek some oil gas drilling-production equipments of accurate flow control, Dosage is larger.But there is problems with for existing cartridge type choke valve product：First, planform is different, component universality Difference, in the case where batch is small, it is unfavorable for tissue production and reduces production cost；Second, many cartridge type choke valves, with being planted in More studdles in bonnet suppress valve seat, prevent its floating, hinder oil gas flowing, add the abrasion of parts； Third, part cartridge type choke valve no pressure balance pipe, operation is wasted time and energy, or pressure compensation opening working position is improper, increase Production cost.

The content of the invention

The purpose of this utility model is, in view of the above-mentioned problems, using standardized technique, to carry out existing product structure excellent Change design, to improve the overall performance of cartridge type choke valve product, and the interchangeability with other choke valve product components；So as to Produced in tissue, reduce cost.

The utility model is by handwheel driving part, stem member, bonnet part, valve part, valve base part and valve element zero Part, combined with supporting seal and connector, be in place of its characteristic：Valve element is a hollow cylinder part, is assigned into In the centre bore of bonnet bottom surface, by its relatively thick, middle thinner stepped hole up and down, with fillister head screw and the circle of valve rod lower end Column cap and screwed hole are linked together, then with holding screw locking radial；At the center of fillister head screw, be drilled with one insertion Pressure compensation opening, top and a radial hole by valve rod lower end screwed hole, with the centre bore of bonnet bottom surface and valve rod The space formed above hypomere, valve element communicates.In addition, handwheel is fixed on the top of drive nut by the utility model, in hand Wheel, the upper end of drive nut and valve rod fill valvular switch display cover, valve rod hypomere with two symmetrical elongated slots and circle Styletable screw prevents its transfer, and valve seat is fixed in valve body with clamping nut and O-ring seal.

Because valve element of the present utility model is fixed using screw with valve rod, after valve element wears, it can dismantle and change； The center of fillister head screw is drilled with pressure compensation opening, it is possible to reduce oil gas is to uniaxial pressure caused by valve element and valve rod in valve seat orifice Compressed air resistance caused by interior motion, to mitigate the operational torque of handwheel；Handwheel is fixed on to the top of drive nut, can To reduce the volume of product, increase structural strength；In the upper end of handwheel, drive nut and valve rod, with display cover and drive nut The change in location of upper surface, shows the switch conditions of valve, closest, display is best；It is symmetrical with two in the hypomere of valve rod Elongated slot and cylindrical end screw fit, prevent valve rod from following drive nut to rotate, stress balance, stable working；Use clamping nut More studdle suppression valve seats are substituted with O-ring seal, can prevent valve seat from floating, and simplify structure, unimpeded runner, are reduced Abrasion；It is general plus handwheel driving part, valve part, valve base part and other choke valves, improving cartridge type throttling valve performance While, production cost can be reduced.

Brief description of the drawings

Accompanying drawing is the utility model general structure full section schematic diagram.

Parts title in figure shown in label is as follows：

1st, handwheel, 2, flat key, 3, drive nut, 4, valve rod, 5, display cover, 6, bolt washer, 7, O-ring seal, 8, O-shaped Sealing ring, 9, holding screw, 10, cartridge housing, 11, thrust bearing, 12, lock screw, 13, holding screw, 14, bonnet, 15, Valve element, 16, fillister head screw, 17, valve body, 18, clamping nut, 19, O-ring seal, 20, valve seat, 21, abrasionproof bushing, 22, O Type sealing ring, 23, pressure-relief valve, 24, O type sealing rings, 25, holding screw, 26, cylindrical end screw, 27, stud nut, 28, close Sealing assembly, 29, lubricating cup.

Embodiment

Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：

The utility model includes handwheel driving part, stem member, bonnet part, valve part, valve base part and valve element Part, and supporting seal and connector.Hand wheel rotating part is by handwheel (1), flat key (2), drive nut (3), O-shaped close Seal (7), O-ring seal (8), holding screw (9), cartridge housing (10), thrust bearing (11), lock screw (12), clamp screw Nail (13) and lubricating cup (29) are formed；Hole and keyway of the handwheel (1) with its hub centre, pass through flat key (2) and holding screw (9), it is fixed on the top of drive nut (3)；The bottom of drive nut (3), respectively fill one in its raised sleeveless jacket top and bottom and push away Power bearing (11), after O-ring seal (8) and cartridge housing (10) parcel, by the bottom surface screwed hole and bonnet of cartridge housing (10) (14) stud of upper end is linked together, then fixed with holding screw (13)；Locking spiral shell in cartridge housing (10) side wall Follow closely (12), for locking the sleeveless jacket below drive nut (3), to prevent the malfunction of handwheel (1), so as to ensure that choke valve is set Flow it is constant；Lubricating cup (29) above cartridge housing (10) side wall, lubricating oil is filled for axial thrust bearing (11), with Reduce frictional resistance.The upper end hole of drive nut (3), mouth sideband have O-ring seal (7), for the display to valve rod (4) epimere Cover (5) is sealed, and enters screw thread pair with anti-dust；The lower stomidium of drive nut (3), be screwed hole of the mouth with pit, with The stud of valve rod (4) coordinates.

Stem member is made up of valve rod (4), display cover (5) and bolt washer (6), installed in drive nut (3) and valve In the centre bore of cover.The epimere of valve rod (4) is smooth cylinder, and upper surface is machined with a tapped blind hole；Display cover (5) epimere of valve rod (4) is enclosed on, it is fixed with bolt washer (6)；The periphery of display cover (5), it is carved with "ON", "Off" text Word and percentage graduation mark, with its change in location with drive nut (3) upper surface, show the switch and Flow-rate adjustment of choke valve Situation.The middle epimere of valve rod (4) is stud, in the presence of drive nut (3) inner hole thread, by the rotary motion of handwheel (1) Become it to move along a straight line up and down；The middle hypomere of valve rod (4) is smooth cylinder, in order to the seal assembly in valve base part (28) it is sealed；Two symmetrical elongated slots are milled with the cylinder of valve rod (4) hypomere, with radially installed in bonnet (14) lower end Two symmetrical cylindrical end screws (26) on hollow cylinder are slidably matched, and prevent valve rod (4) transfer；Valve rod (4) lower end, use The less socket cap of diameter and the screwed hole of bottom surface radial direction couple with valve element (15).

Valve element (15) is a hollow cylinder part, is made of Hardmetal materials, and its center is relatively thick, middle up and down Thinner stepped hole；The thicker stepped hole in upper end, for coupling the socket cap of valve rod (4) lower end；Middle and lower end stepped hole, For installing fillister head screw (16), to couple with the screwed hole of valve rod (4) bottom surface.At the center of fillister head screw (16), The pressure compensation opening of an insertion is drilled with, it is small by the top and a radial direction communicated with the external world of valve rod (4) bottom surface screwed hole Hole, the valve pocket in valve body (17) is set to be formed with the centre bore of bonnet (14) bottom surface and hypomere, the valve element of valve rod (4) above (15) Space communicate, to keep pressure balance.

Bonnet part is by bonnet (14), O-ring seal (22), O-ring seal (24), cylindrical end screw (26) and sealing Component (28) is formed, and seal assembly (28) is spelled cap, two packing rings and flower bud shape sealing ring by one and formed.Bonnet (14) it is upper Section is the stud for being machined with external screw thread and escape, for coupling bearing shell (10)；Stage casing is the flange of major diameter, and its end face is used Uniform stud nut (27) couples with valve body (17)；Hypomere is the hollow cylinder of two different-diameters with the transition conical surface, In the periphery that diameter is thicker, the groove of four built-in O-ring seals (24) is machined with；It is right in the centre of four grooves It is machined with the radial screw bore of two built-in cylindrical end screws (26) with claiming.The center of bonnet (14) is the multistage of up/down perforation Stepped hole；The tapped stepped hole of upper end entrance, for installing valve rod (4) and seal assembly (28)；Lower end entrance band O The smooth cylindrical hole of type sealing ring (22), for installing valve rod (4) and valve element (15).

Valve part is made up of valve body (17), abrasionproof bushing (21) and pressure-relief valve (23).Valve body (17) is one kind " three It is logical " part；The center top-down processing of its main body has different-diameter cylindrical hole and screwed hole, and they are valve cover hole, valve respectively Lumen pore, screwed hole and access opening；Uniform the tapped blind hole concentric with centre bore above main body, for coupling bonnet (14) etc. Parts；The hubbed flange that the side and lower end of main body are respectively stretched out, the center of flange are the access openings to be crossed with valve pocket hole, Wherein：Abrasionproof bushing (21) is housed, to improve the anti-wear performance of valve body (17) in the access opening of lower end hubbed flange；In two bands On the blue end face of cervical approach, trapezoidal gasket ring groove and uniform bolt hole are machined with, for external connecting；In the side wall of main body, Relative to the axial location of side hubbed flange access opening, the pressure in valve pocket is shed equipped with pressure-relief valve (23), during to repair.

Valve base part is made up of clamping nut (18), O-ring seal (19) and valve seat (20)；Clamping nut (18) is used Its cylindrical stud coordinates with the screwed hole in valve body (17), and the round platform rank of valve seat (20) upper end is pushed down with its inner circle stepped hole, with Prevent valve seat (20) from being floated upwards under the pressure of medium；O-ring seal (19) is arranged on the lower end of clamping nut (18), valve body (17) in internal thread hole recess, sealing and the locking effect of damping are played.Valve seat (20) is manufactured using Hardmetal materials, , can be with new and old replacement after abrasion.

Claims (5)

1. A kind of 1. cartridge type manual throttle valve of new architecture, by handwheel driving part, stem member, bonnet part, valve part, valve Base member and spool parts, combined with supporting seal and connector；It is characterized in that：Valve element (15) is a hollow cylinder Body part, assign into the centre bore of bonnet (14) bottom surface, by its relatively thick, middle thinner stepped hole up and down, use socket cap Screw (16) and the socket cap and screwed hole of valve rod (4) lower end are linked together, then with holding screw (25) locking radial；In circle The center of chapiter screw (16), the pressure compensation opening of an insertion is drilled with, by the top of valve rod (4) lower end screwed hole and one Radial hole, communicated with the space formed above the hypomere of the centre bore of bonnet (14) bottom surface and valve rod (4), valve element (15).
2. 2. cartridge type manual throttle valve according to claim 1, it is characterized in that：Hole and key of the handwheel (1) with its hub centre Groove, by flat key (2) and holding screw (9), it is fixed on the top of drive nut (3).
3. 3. cartridge type manual throttle valve according to claim 1, it is characterized in that：Display cover (5) is enclosed on the epimere of valve rod (4), It is fixed with bolt washer (6)；Display cover (5) periphery, be carved with " open and close " word and percentage graduation mark, with its with The change in location of drive nut (3) upper surface, show the switch and Flow-rate adjustment situation of choke valve.
4. 4. cartridge type manual throttle valve according to claim 1, it is characterized in that：Two are milled with the cylinder of valve rod (4) hypomere Individual symmetrical elongated slot, cylindrical end screw (26) symmetrical with two of radially installed on the hollow cylinder of bonnet (14) lower end are sliding It is dynamic to coordinate.
5. 5. cartridge type manual throttle valve according to claim 1, it is characterized in that：Valve base part is by clamping nut (18), O-shaped close Seal (19) and valve seat (20) are formed；Clamping nut (18) is coordinated with the screwed hole in its cylindrical stud and valve body (17), is used Its inner circle stepped hole pushes down the round platform rank of valve seat (20) upper end；O-ring seal (19) is arranged on the lower end of clamping nut (18), valve In screw thread hole recess in body (17).