CN1834511A

CN1834511A - High efficiency smart fluorine-lined control valve

Info

Publication number: CN1834511A
Application number: CN 200610072149
Authority: CN
Inventors: 朱孝有
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-14
Filing date: 2006-04-14
Publication date: 2006-09-20
Anticipated expiration: 2026-04-14
Also published as: CN100406792C

Abstract

The present invention discloses a high-effective intelligent fluorine-lined control valve. It includes valve body, valve cavity, inlet tube, outlet tube, valve cover and valve core. In the interior of valve cavity, between the inlet tube and outlet tube a valve seat is set, in the interior of valve cavity, inlet tube and outlet tube on the surface which can be contacted with the fluid an integrally-formed fluorine plastic layer is made, on the external surface of integral valve core and valve rod a fluorine plastic layer is integrally-formed, and on the valve cover an integrally-formed fluorine plastic layer is made in the position which can be contacted with fluid, and the described valve seat is a fluorine plastic layer integrally-formed ring-shaped fluorine plastic valve seat in the valve cavity.

Description

High efficiency smart fluorine-lined control valve

Technical field

The present invention relates to a kind of valve, particularly a kind of high efficiency smart fluorine-lined control valve.

Background technique

Common control valve because the medium of can not being able to bear strong corrosion has been subjected to very big restriction so use, and usually valve carry out the valve seat that switch cooperates with spool, with valve body split setting, thus complex structure, and anticorrosion, leak resistance is poor.

Summary of the invention

The present invention has overcome the not corrosion-resistant and baroque shortcoming of existing control valve, provides a kind of antiseptic property good, simple in structure high efficiency smart fluorine-lined control valve.

In order to achieve the above object, the technical solution used in the present invention is: a kind of high efficiency smart fluorine-lined control valve, be provided with valve body, valve pocket is set in valve body, connect valve pocket and be shaped on inlet tube, outer pipe, the opening of valve pocket on valve body seals by the fastening valve gap that is provided with, at valve pocket) in, between inlet tube and the outer pipe valve seat is set, spool is arranged between valve seat and the valve gap, and with the valve seat coaxial design, the valve rod of spool through cooperating with the valve gap slipper seal, the control valve final controlling element outer with valve body is connected, change in location by spool, regulate the aperture between described spool and the valve seat and the switch of valve, at valve pocket, in inlet tube and the outer pipe may with face that fluid contacts on be shaped on the fluoroplastics layer of global formation, spool and valve rod are made into integration, and at spool, stem exterior surface global formation fluoroplastics layer, on valve gap may with the contacted position of fluid, be shaped on the fluoroplastics layer of global formation, described valve seat be with valve pocket in the integrated annular fluoroplastic valve seat of fluoroplastics layer.

Preferred version as above technological scheme: on the shaft sealing face of valve rod and valve gap, the filler group that the reverse V-shaped teflon annular of many groups filler forms is set, in this filler group upper end Teflon O ring is set, on O type circle, adds gland, be anchored on the valve gap.

Preferred version as above technological scheme: the step bodily form guide sleeve that has axial bore is set on the sealing surface between valve gap and the valve body, global formation fluoroplastics layer on the surface of this guide sleeve, on the fastening sealing surface that is arranged between valve gap and the valve body in the expansion section of this guide sleeve, the axial bore in the guide sleeve protuberance is passed in the valve rod axial sliding fit.

Preferred version as above technological scheme: spool is to become big solid of rotation gradually from nearly valve seat end, and spool and the coaxial setting of valve seat, forms sealing when spool contacts with valve seat.

Preferred version as above technological scheme: the sealing surface between spool and the valve seat is a conical surface.

Preferred version as above technological scheme: the upper end open of valve pocket is in the upper wall of valve body, be shaped on inlet tube obliquely in the valve pocket bottom, be shaped on outer pipe on opposite side, the valve pocket top of inlet tube under oblique, inlet tube and outer pipe outer end opening are on the same axis, and the upper end open of valve pocket is fastenedly connected valve gap with flange.

Preferred version as above technological scheme: on the internal surface of valve pocket, inlet tube, outer pipe and each sealing joint face, be shaped on the fluoroplastics layer of global formation, at the lower surface of valve gap, wear the fluoroplastics layer that is shaped on global formation on the internal surface of hole that valve rod uses.

Preferred version as above technological scheme: described fluoroplastics layer is the polytetrafluoroethylplastic plastic layer preferably.This fluoroplastics layer is to adopt the processing of elastic mould isotactic molding process.

High efficiency smart fluorine-lined control valve of the present invention has following beneficial effect: equal global formation fluoroplastics layer separately on contacted of each parts such as valve body, spool and valve gap and the fluid, thus effectively prevented the corrosion of each parts in the valve.And, because valve seat is when the fluoroplastics layer of processing valve body liner, one processes, the various slits that produced so avoided adding valve seat in addition, and spool and valve rod are made integrative-structure, so the valve overall structure is simple, precision is high, install and keep in repair more convenient, and reduced various burn intos and leaked.

The preferred version of high efficiency smart fluorine-lined control valve of the present invention has following beneficial effect: because this fluoroplastics layer is to adopt the processing of elastic mould isotactic molding process, so machining accuracy height, runner is smooth, the valve resistance is little, system pressure drop is low, and energy-saving effect is particularly evident.

The preferred version of high efficiency smart fluorine-lined control valve of the present invention also has following beneficial effect: on the shaft sealing face of valve rod and valve gap, owing to adopted reverse V-shaped teflon annular filler group, so upwards flow in the slit of fluid outside valve rod, upwards push reverse V-shaped teflon annular filler, make reverse V-shaped teflon annular filler open and flat, thereby strengthened seal action, leakage rate is significantly less than traditional like product, seals more reliable.

Description of drawings

Fig. 1 represents that embodiment of the invention high efficiency smart fluorine-lined control valve side cuts open structural representation and partial enlarged drawing.

Embodiment

With reference to accompanying drawing, will be described in detail the specific embodiment of the present invention.

The high efficiency smart fluorine-lined control valve of present embodiment, Fig. 1 illustrates its side and cuts open structural representation and partial enlarged drawing, be provided with valve body 1, valve body 1 central authorities are provided with valve pocket 13, valve pocket 13 upper end open are in the upper wall of valve body 1, be shaped on inlet tube 11 obliquely in valve pocket 13 bottoms, opposite side at inlet tube 11, be shaped on outer pipe 12 under valve pocket 13 tops are oblique, inlet tube 11 is on the same axis with outer pipe 12 outer end openings, the upper end open of valve pocket 13 is fastenedly connected valve gap 3 with flange, spool 2 is arranged in the valve pocket 13, described spool upper end one connects valve rod 6, valve rod 6 passes valve gap along the longitudinal axis of valve pocket 13 and valve gap 3, between valve rod 6 and the valve gap 3 is that slipper seal cooperates, valve rod 6 upper ends are connected with control valve final controlling element 4 (such as the air bladder final controlling element), valve pocket 13, the internal surface of inlet tube 11 and outer pipe 12, and the fluoroplastics layer 5 that all is shaped on global formation on each sealing joint face, equally, at spool 2, the fluoroplastics layer 5 of valve rod 6 outer surface global formations, on valve gap 3 may with the contacted position of the medium of the control valve of flowing through, all be shaped on the fluoroplastics layer 5 of global formation, the lower surface of valve gap 3 is as shown in Figure 1 worn the fluoroplastics layer 5 that all is shaped on global formation on the internal surface of hole that valve rod uses.In valve pocket 13, above inlet tube 11 openings, below outer pipe 12 openings, one-body moldedly be shaped on an annular fluoroplastic valve seat 8 with fluoroplastics layer 5 in the valve pocket, described spool 2 places a side of this valve seat 8, spool 2 is the little down big solid of rotation of, and spool 2 is coaxial with valve seat 8, the maximum diameter of spool 2 is greater than the diameter of valve seat 8, and spool 2 declines form when contacting with valve seat 8 and are sealed and matched.

Above high efficiency smart fluorine-lined control valve, during work, control valve final controlling element 4 is under the control of control signal, driving valve rod 6 rises or descends, and then drive spool 2 and rise or descend, make annular space between spool 2 and the valve seat 8 become big or diminish, open fully or closure fully.The control valve that this is routine, its major advantage be each parts such as valve body 1, spool 2 and valve gap 3 with contacted of the medium of flowing through on global formation fluoroplastics layer separately, thereby effectively prevented the corrosion of each parts in the valve.And, because valve seat 8 is that one processes when the fluoroplastics layer of processing valve body liner, the various slits that produced so avoided adding valve seat in addition, and spool and valve rod are made integrative-structure, so the valve overall structure is simple, overall precision is high, install and keep in repair more convenient, and owing to reduced various burn intos and leak.And because this fluoroplastics layer is to adopt the processing of elastic mould isotactic molding process, this technology can evenly moulding in geometrical shape, baroque die cavity, so the machining accuracy height, runner is smooth, the valve resistance is little, system pressure drop is low, and energy-saving effect is particularly evident.

Close better for spool 2 is closed with valve seat 8, so the structure of spool 2 and valve seat 8 as shown in Figure 1, the sealing surface between them is the little up and down big conical surface of.

For spool is moved up and down coaxially, the precision of switch, adjusting is higher, and sealing, antiseptic property between valve body and the valve gap are better, so on the sealing surface between valve gap 3 and the valve body 1, add guide sleeve 9, this guide sleeve 9 is step bodies of perforate vertically, its surface is the global formation fluoroplastics layer all, on the fastening sealing surface that is arranged between valve gap 3 and the valve body 1 in the expansion section of this guide sleeve 9, the protuberance that guide sleeve 9 stretches out downwards, valve rod 6 is slidingly matched vertically and passes the interior hole of this protuberance, and then pass valve gap 3, reach outside the valve body.Because guide sleeve 9 is set, so the concentricity that spool moves up and down is higher, make the degree of regulation of valve higher, make sealing, antiseptic property between valve body and the valve gap better simultaneously.

For further enhanced leaktightness, on the shaft sealing face of valve rod 6 and valve gap 3, the filler groups 10 that the reverse V-shaped teflon annular of many groups filler forms are set, in these filler group 10 upper ends Teflon O ring 15 is set, on O type circle 15, add gland 14, be anchored on the valve gap.The sealing structure is owing to adopted reverse V-shaped teflon annular filler group, so upwards flow in the slit of fluid outside valve rod, upwards push reverse V-shaped teflon annular filler, make reverse V-shaped teflon annular filler open and flat, thereby strengthened seal action, leakage rate is significantly less than traditional like product, seals more reliable.

The agent structure of the valve among the above embodiment can be any structure of existing control valve, can change as required such as structures such as valve pocket, inlet tube, outer pipe, valve gap, spool, control valve final controlling element, structure is not limited to example shown in Figure 1, the characteristics of the embodiment of the invention mainly are at valve inner lining fluoroplastics layer, this fluoroplastics layer is the polytetrafluoroethylplastic plastic layer preferably, and valve seat and this fluoroplastics layer are one-body molded, and the overall structure of valve is simple like this, and superior performance.

Upper and lower position in the present embodiment is just clearer in order to express, to the unqualified effect of scope of invention.

Claims

1, a kind of high efficiency smart fluorine-lined control valve, be provided with valve body (1), valve pocket (13) is set in valve body (1), connect valve pocket (13) and be shaped on inlet tube (11), outer pipe (12), the opening of valve pocket (13) on valve body (1) seals by the fastening valve gap (3) that is provided with, in valve pocket (13), between inlet tube (11) and the outer pipe (12) valve seat (8) is set, spool (2) is arranged between valve seat (8) and the valve gap (3), and with valve seat (8) coaxial design, the valve rod (6) of spool (2) through cooperating with valve gap (3) slipper seal, the control valve final controlling element (4) outer with valve body (1) is connected, change in location by spool, regulate the aperture between described spool (2) and the valve seat (8) and the switch of valve, it is characterized in that, in valve pocket (13), in inlet tube (11) and the outer pipe (12) may with face that fluid contacts on be shaped on the fluoroplastics layer (5) of global formation, spool (2) is made into integration with valve rod (6), and in spool (2), valve rod (6) outer surface global formation fluoroplastics layer (5), on valve gap (3) may with the contacted position of fluid, be shaped on the fluoroplastics layer (5) of global formation, described valve seat (8) is and the interior integrated annular fluoroplastic valve seat of fluoroplastics layer (5) (8) of valve pocket (13).

2, high efficiency smart fluorine-lined control valve according to claim 1, it is characterized in that, on the shaft sealing face of valve rod (6) and valve gap (3), the filler group (10) that the reverse V-shaped teflon annular of many groups filler forms is set, in this filler group (10) upper end Teflon O ring (15) is set, on O type circle (15), add gland (14), be anchored on the valve gap (3).

3, high efficiency smart fluorine-lined control valve according to claim 2, it is characterized in that, the step bodily form guide sleeve (9) that has axial bore is set on the sealing surface between valve gap (3) and the valve body (1), equal global formation fluoroplastics layer on the surface of this guide sleeve (9), on the fastening sealing surface that is arranged between valve gap (3) and the valve body (1) in the expansion section of this guide sleeve (9), the axial bore in guide sleeve (9) protuberance is passed in valve rod (6) axial sliding fit.

4, high efficiency smart fluorine-lined control valve according to claim 3, it is characterized in that, spool (2) is to become big solid of rotation gradually from nearly valve seat (8) end, and spool (2) and the coaxial setting of valve seat (8), and spool (2) forms when contacting with valve seat (8) and is sealed and matched.

5, high efficiency smart fluorine-lined control valve according to claim 4 is characterized in that, the sealing surface between spool (2) and the valve seat (8) is a conical surface.

6, high efficiency smart fluorine-lined control valve according to claim 5, it is characterized in that, the upper end open of valve pocket (13) is in the upper wall of valve body (1), be shaped on inlet tube (11) obliquely in valve pocket (13) bottom, be shaped on outer pipe (12) on opposite side, valve pocket (13) top of inlet tube (11) under oblique, inlet tube (11) is on the same axis with outer pipe (12) outer end opening, and the upper end open of valve pocket (13) is fastenedly connected valve gap (3) with flange.

7, high efficiency smart fluorine-lined control valve according to claim 6, it is characterized in that, on the internal surface of valve pocket (13), inlet tube (11), outer pipe (12) and each sealing joint face, be shaped on the fluoroplastics layer (5) of global formation, at the lower surface of valve gap (3), wear the fluoroplastics layer (5) that is shaped on global formation on the internal surface of hole that valve rod uses.

8, according to the arbitrary described high efficiency smart fluorine-lined control valve of claim 1 to 7, it is characterized in that described fluoroplastics layer is the polytetrafluoroethylplastic plastic layer preferably.

9, high efficiency smart fluorine-lined control valve according to claim 8 is characterized in that, this fluoroplastics layer is to adopt the processing of elastic mould isotactic molding process.