CN102062222A

CN102062222A - Rotary-cutting type flow regulating angle valve

Info

Publication number: CN102062222A
Application number: CN 201010597579
Authority: CN
Inventors: 甄宇宏
Original assignee: ANHUI TONGDU VALVE Co Ltd
Current assignee: Anhui Tongdu Flow Technology Co., Ltd.
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2011-05-18
Anticipated expiration: 2030-12-21
Also published as: CN102062222B

Abstract

The invention discloses a rotary-cutting type flow regulating angle valve for controlling the channel flow quantity. The angle valve provided by the invention comprises an angular valve body, a valve cover, a valve rod and a transmission mechanism, wherein the valve rod is fixed on the valve cover; the outlet end of a valve chamber is provided with a valve seat; the valve seat and the inner wall of the valve chamber are connected in a sealing mode; the valve seat is provided with two flow channels which are symmetrically distributed; the valve rod is fixed on the valve cover through a bearing; the part, which positioned in the valve chamber, of the lower end of the valve rod is a valve core; the bottom of the valve core is provided with a sealing surface which is matched with the upper end surface of the valve seat; the sealing surface of the lower end of the valve core is provided with two axial holes corresponding to the flow channels of the valve seat; and the valve core is provided with a radial hole which communicates the valve chamber with the axial holes at the lower part of the valve core. Because the valve rod and the valve cover can be connected through the bearing, the rotary resistance is less, the operation of regulating the flow quantity is simple and labor-saving, and a restriction orifice has a linear flow characteristic.

Description

Rotary-cuting type is transferred the stream angle valve

Technical field

The present invention relates to be used for the modulating valve of pipeline flow control, specifically a kind of rotary-cuting type is transferred the stream angle valve.

Background technique

At present, accent stream angle valve commonly used adopts screw thread valve rod type of belt drive to carry out Flow-rate adjustment usually, its Principles of Regulation are mainly the Lift of regulating flap and come control flow rate, the situation of time and effort consuming when often being difficult for realizing the linear flow measure feature and having the adjusting flow, easy jam when running into liquid-solid mixing medium such as closes incessantly at defective.

Summary of the invention

The purpose of this invention is to provide a kind of rotary-cuting type and transfer the stream angle valve, it is simple to operate laborsaving not only to regulate flow, and is difficult for jam.

The present invention is achieved in that its rotary-cuting type accent stream angle valve, comprise the dihedral valve body, valve gap, valve rod and driving mechanism thereof, valve rod is fixed on the valve gap, the outlet end of valve pocket is provided with valve seat, valve seat is connected with the valve pocket inner wall sealing, have the runner of two symmetrical distributions on the valve seat, valve rod by bearing fixing on valve gap, the part that the valve rod lower end is positioned at valve pocket is a spool, the sealing surface that cooperates with the valve seat upper-end surface is arranged at the spool bottom, have two axial bores corresponding on the sealing surface of spool lower end, have the radial hole that valve pocket is communicated with spool lower end axial bore on the spool with the valve seat runner.

Rotary valve rod makes when the axial bore of valve rod bottom goes to the fluid passage place of valve seat, and the fluid that enters valve pocket is entered in the axial bore by the radial direction through hole of valve rod lower end, and the fluid passage by valve seat flows out again.Flow maximum when axial bore overlaps fully with the valve seat fluid passage is regulated its coincidence position by rotary valve rod and can be regulated flow.Because valve rod can be connected by bearing with valve gap, rotational resistance is little, regulates the simple to operate laborsaving of flow.

The hypomere at spool axial bore place and the epimere at radial hole place flexibly connect by pin key.Valve seat and spool hypomere can adopt cobalt chromium tungsten cemented carbide and wear-resistant ceramic material to make, and can improve wear-resisting property, and have the advantage of highly corrosion resistant.

Consider that the ceramic valve seat cost than factors such as big and manufacture difficulty height, is provided with the valve seat setting sleeve in the valve pocket, the valve seat setting sleeve is connected with the valve pocket inner wall sealing, and ceramic valve seat is fixed in the setting sleeve.Its benefit is not only to save cost, has reduced manufacture difficulty simultaneously, and is also replaceable when valve seat damage.

A preferred version of the present invention is: valve seat is made up of valve seat matrix and two floating valve seats, respectively be provided with a runner on each floating valve seat, have on the valve seat matrix and two mounting holes that floating valve seat is corresponding, be provided with step in the mounting hole, spring is housed on the step, floating valve seat is located on the mounting hole by spring bracket, is provided with seal ring between the installation hole wall of floating valve seat and valve seat matrix.Be adjacent on valve rod lower end or valve head in floating valve seat upper end under the effect of spring; can improve sealability between the two; and rotation can both be removed the foreign material that remain on the sealing surface automatically at every turn, can prevent that impurity from entering both sealing surfaces, can play the effect of protection sealing surface.

The present invention regulates the simple to operate laborsaving of flow because valve rod and valve gap can be connected by bearing, and rotational resistance is little, and runner is the holes of two equal and opposite in directions and symmetry, opens and closes and transfer the stream only need 90 ° of rotations, and throttle orifice has the Flow characteristics of linearity.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 be Fig. 1 along A-A line sectional view;

Fig. 3 is the local enlarged diagram in I place among Fig. 1;

Fig. 4 is Throttle Principle figure of the present invention.

Embodiment

As depicted in figs. 1 and 2, the present invention includes dihedral valve body 8, valve gap 3, valve rod 1 and driving mechanism thereof, valve gap 3 is by bolt 31 fixedly on the valve body 8 of valve pocket 83 tops.The liquid inlet and

outlet

81,82 of valve pocket 83 is 90 ° of settings, liquid entering hole 81 is located at valve body 8 one sides, liquid outlet 82 is located at valve body 8 belows, be provided with valve seat setting sleeve 5 in the valve pocket 83, be provided with seal ring 52 between valve seat setting sleeve 5 belows and valve pocket 83 inwalls, liquid outlet 82 ends that packing ring 9 is supported on valve pocket 83 are twined by stainless steel in the bottom of valve seat setting sleeve 5, and the top of valve seat setting sleeve 5 is compressed by valve gap 3, and inboard, valve seat setting sleeve 5 lower end is provided with the ring-shaped step 53 of fixed valve base.

Valve seat is made up of valve seat matrix 6 and two annular floating valve seats 7, be provided with a cross section in the middle of on each floating valve seat 7 and be circular runner 71, have mounting hole symmetrical distribution, corresponding with two floating valve seats 7 on the valve seat matrix 6, be provided with step 61 in the mounting hole, deformed spring 63 is housed on the step 61, floating valve seat 7 is erected on the mounting hole by spring 63, is provided with

seal ring

72,73 between the installation hole wall of floating valve seat 7 and valve seat matrix 6.Valve seat matrix 6 is supported on the step 53 in the valve seat setting sleeve 5, is provided with seal ring 62 between valve seat matrix 6 and valve seat setting sleeve 5 inwalls.

Valve rod 1 is fixed on the valve gap 3 by bearing 12, bearing 12 tops are provided with the gland 2 that is threaded with valve gap 3, the part that valve rod 1 lower end is positioned at valve pocket 83 is a spool 4, the sealing surface that cooperates with the valve seat upper-end surface is arranged at spool 4 bottoms, have on the sealing surface of spool lower end corresponding with valve seat runner 71, cross-sectional sizes one to two axial bores 421, have the radial hole 41 that valve pocket 83 is communicated with spool lower end axial bore 421 on the spool 4.There is the sealing surface with 3 times end in contact of valve gap spool 4 tops, are located at seal ring 44 on the sealing surface.Consider the sealing surface wear resistance of spool 4 bottoms, spool is processed into upper and lower two sections, and the hypomere 42 at spool axial bore 421 places flexibly connects by pin key 43 with the epimere 4 at radial hole 41 places.

Valve seat setting sleeve 5 has four through holes 51 at spool 4 radial holes 41 places, makes that the fluid in the valve pocket 83 can enter in the spool radial hole 41 by through hole 51.Valve rod 1 top is connected with driving mechanism, and driving mechanism is a handle 11 in this example.

Its working principle is as follows: under valve body peak rate of flow situation, runner 71 complete corresponding coincidences in the middle of two axial bores 421 on the hypomere spool 42 and two floating valve seats 7, fluid is entered in the valve pocket 83 by liquid entering hole 81, through hole 51 through valve seat setting sleeve 5 enters in the spool radial hole 41, runners 71 in the middle of two axial bores 421 on hypomere spool 42 and the floating valve seat 7 flow out valve pockets 83 again, are flowed out by liquid outlet 83 again.When regulating flow, rotate to the left or to the right by handle, the valve core rotation of valve rod and bottom makes two axial bores 421 and two runners 71 partially overlap, and as shown in Figure 4, this moment, flow reduced; When half-twist, two axial bores 421 separate fully with two runners 71, make valve closing, and 4 positions of spool shown in Fig. 1 and Fig. 2 are in closed condition.

Claims

1. rotary-cuting type is transferred the stream angle valve, comprise dihedral valve body (8), valve gap (3), valve rod (1) and driving mechanism thereof, valve rod (1) is fixed on the valve gap (3), the outlet end of valve pocket (83) is provided with valve seat, valve seat is connected with the valve pocket inner wall sealing, it is characterized in that: the runner (71) that has two symmetrical distributions on the valve seat, valve rod (1) is fixed on the valve gap (3) by bearing (12), the part that valve rod (1) lower end is positioned at valve pocket (83) is spool (4), the sealing surface that cooperates with the valve seat upper-end surface is arranged at spool (4) bottom, have two axial bores (421) corresponding on the sealing surface of spool (4) lower end, have the radial hole (41) that valve pocket (83) is communicated with spool lower end axial bore (421) on the spool (4) with valve seat runner (71).

2. rotary-cuting type according to claim 1 is transferred the stream angle valve, it is characterized in that: the hypomere (42) at spool axial bore (421) place flexibly connects by pin key (43) with the epimere (4) at radial hole (41) place.

3. rotary-cuting type according to claim 1 is transferred the stream angle valve, and it is characterized in that: be provided with valve seat setting sleeve (5) in the valve pocket (83), valve seat setting sleeve (5) is connected with valve pocket (83) inner wall sealing, and valve seat is fixed in the valve seat setting sleeve (5).

4. transfer the stream angle valve according to claim 1 or 2 or 3 described rotary-cuting types, it is characterized in that: described valve seat is made up of valve seat matrix (6) and two floating valve seats (7), respectively be provided with a runner (71) on each floating valve seat (7), have on the valve seat matrix (6) and the corresponding mounting hole of two floating valve seats (7), be provided with step (61) in the mounting hole, spring (63) is housed on the step (61), floating valve seat (7) is erected on the mounting hole by spring (63), is provided with seal ring (72,73) between the installation hole wall of floating valve seat (7) and valve seat matrix (6).