CN102287612A - Ultra supercritical hydrophobic valve - Google Patents
Ultra supercritical hydrophobic valve Download PDFInfo
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- CN102287612A CN102287612A CN2011101339902A CN201110133990A CN102287612A CN 102287612 A CN102287612 A CN 102287612A CN 2011101339902 A CN2011101339902 A CN 2011101339902A CN 201110133990 A CN201110133990 A CN 201110133990A CN 102287612 A CN102287612 A CN 102287612A
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- valve
- valve seat
- spheroid
- seal
- support
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Abstract
The invention relates to an ultra supercritical hydrophobic valve which comprises a valve body, a valve rod, a spherical body and a valve base, wherein a connecting frame is composed of a tubular structure which is upward extended and is integrally formed at the upper part of the valve body, and a containing cavity is arranged on the valve body, provided with a straight cylindrical part and a cone-shaped part and communicated with an outlet channel; the valve base is composed of a seal valve seat and a supporting valve seat, wherein the seal valve seat, and the spherical body and the supporting valve seat are successively arranged in the containing cavity; the appearance of the seal valve seat is matched with the cone-shaped part, the seal valve seat is arranged in the cone-shaped part, the lower end of the valve rod and the spherical body in the containing cavity form a rotating linkage connection; the other end, which is far from the supporting valve seat, of the spherical body, is provided with an elastic mechanism which is used for causing the supporting valve seat to elastically prop against the spherical body, meanwhile, and the other end of the spherical body is pressed on the seal valve seat. In the hydrophobic valve provided by the invention has the advantages that multiple seals are reduced, simultaneously the other end, which is far from the supporting valve, of the spherical body is provided with the elastic mechanism, thus the spherical body has an appropriate specific pressure, thereby ensuring the high tightness of the spherical body and the valve base.
Description
Technical field
The present invention relates to a kind of drain valve, surpass postcritical ultra supercritical drain valve especially for operating conditions.
Background technique
Drain valve plays the block steam and drain water effect in steam-heating system, select suitable drain valve, can make steam-heating apparatus reach high workload efficient.As everyone knows, the critical pressure of water is: 374.15 ℃ of 22.115MPa; When this pressure and temperature, the latent heat of vaporization of water and steam-reforming equals zero, and carries out with single-phase form, the transition point of Here it is water, power pressure is lower than this pressure subcritical, is exactly overcritical greater than this pressure, and power pressure then is called as ultra supercritical greater than 26MPa.What adopt between traditional valve body, connecting body, the support is the mode of bolt, owing to exist multiple-sealed, there is potential leakage problem between valve body and the connecting body, therefore be difficult in the occasion that working environment is had relatively high expectations (as under), use, say nothing of under the ultra supercritical state and use in supercritical state.In addition, because the ultra supercritical drain valve is operated under the state of High Temperature High Pressure, traditional ultra supercritical drain valve is under pressure stress and thermal stress effect, will produce small deformation, the seal pressure that causes valve sealing face descends, and causes the sealability variation, causes the earial drainage accident.
Summary of the invention
The objective of the invention is to for overcome the deficiencies in the prior art provide a kind of under the ultra supercritical state, use still can reliable sealing the ultra supercritical drain valve.
The present invention is that the achieve the above object technical solution that adopted is as follows: a kind of ultra supercritical drain valve, comprise valve body, valve gap, valve rod, spheroid and valve seat, it is characterized in that: described valve body top is one-body molded to have upwardly extending tubular structure to constitute link press span, described valve body is provided with the cavity volume that extends and be communicated with outlet passage to outlet side from suction side, described cavity volume has vertical tube part and tapered portion, described tapered portion is near outlet passage, described valve seat is made up of a seal valve seat and a support valve seat, described seal valve seat, spheroid and support valve seat place described cavity volume successively, the profile of described seal valve seat and tapered portion match and are located therein, described support valve seat and vertical tube part Spielpassung, described valve rod lower end penetrates from link press span to cavity volume and is connected with the rotation of spheroid formation, the opposite side away from spheroid of described support valve seat is provided with elastic mechanism flexibly is pressed on the spheroid support valve seat, and the opposite side of spheroid is pressed on the seal valve seat.
Compared with prior art, ultra supercritical drain valve of the present invention is taked the integrated type valve body structure, functions such as traditional valve body, connecting body, support are concentrated on the valve body piece, reduced multiple-sealedly, fundamentally stopped the potential seal leakage problem that exists between valve body and the connecting body; Simultaneously, make the support valve seat flexibly be pressed on the spheroid owing to be provided with elastic mechanism at the opposite side that supports valve seat away from spheroid, given spheroid a suitable specific pressure, even spheroid weares and teares after using after a while, spheroid still can keep closely contacting with right valve seat, has guaranteed the high leak tightness of spheroid and valve seat.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing 1 is a specific embodiment of the invention structure sectional view.
Embodiment
As shown in Figure 1, the ultra supercritical drain valve comprises valve body 1, valve rod 9, spheroid 7 and valve seat, described valve body 1 top is one-body molded to have upwardly extending tubular structure to constitute link press span, the link press span shape can be square tube shape or cylindrical shape, adopt cylindrical shape in this specific embodiment, link press span is provided with gland 10, gland 10 centers are provided with the valve rod hole of perforation, described valve rod 9 upper and lowers circumferentially are arranged with stem guiding cover 11 and valve lever bushing 12 respectively movingly, described stem guiding cover 11 and valve lever bushing 12 are fixedly installed on respectively on the valve rod hole and valve body 1 of gland 10, such setting, make valve have valve rod 9 guiding devices of overlength, valve rod 9 running accuracies have greatly been improved, guaranteed the sealing of filler chamber, in High Temperature High Pressure, under the condition of frequent switch, can guarantee that still stuffing box is not subjected to the destruction of lateral force fully, has prolonged the life-span of stuffing box inner seal liner.Described valve body 1 is provided with the cavity volume that extends and be communicated with outlet passage to outlet side from suction side, and described cavity volume has vertical tube part and tapered portion, and described tapered portion is near outlet passage.Make things convenient for production, the vertical tube part of cavity volume and tapered portion preferably are respectively cylindrical and truncated cone.The valve seat of this valve is made up of a seal valve seat 8 and a support valve seat 6, described seal valve seat 8, spheroid 7 and support valve seat 6 place described cavity volume successively, the profile of described seal valve seat 8 and tapered portion match and are located therein, described support valve seat 6 and vertical tube part Spielpassung, seal valve seat 8 and support valve seat 6 are provided with the annular sealing surface that matches with spheroid 7 surfaces with spheroid 7 contacted sides.The seal valve seat 8 and the tapered portion of taper match to be fixed therein well and prevent to become flexible, support valve seat 6 and the both easy assembly and disassembly of vertical tube part Spielpassung, make support valve seat 6 can under the elastic mechanism effect, give 7 one suitable specific pressures of spheroid again, even spheroid 7 weares and teares after using after a while, spheroid 7 still can keep closely contacting with right valve seat, has guaranteed the high leak tightness of spheroid 7 with valve seat.Described valve rod 9 lower ends penetrate to cavity volume from link press span bottom centre and are connected with spheroid 7 formation rotations, be provided with stuffing box between link press span bottom valve rod 9 perforating position valve rods 9 and the valve body 1, be provided with stuffing box packing 15 in the stuffing box, be provided with filler briquetting 16, filler butterfly spring 14 and hold-down grid in the stuffing box packing 15 successively and compress 13.The opposite side away from spheroid 7 of described support valve seat 6 is provided with elastic mechanism flexibly is pressed on the spheroid 7 support valve seat 6, and the opposite side of spheroid 7 is pressed on the seal valve seat 8.In this specific embodiment, a side that supports valve seat 6 away from spheroid 7 be provided with that the cross section matches with cavity volume, the center is provided with latus rectum match flowing hole to piece 2, and support between the valve seat 6 and be provided with butterfly spring 5, be provided with annular slot 4 near the chamber wall of supporting piece 2 the other ends, it is spacing to be arranged with 3 pairs of described support valve seats 6 formation of opening jump ring in the draw-in groove 4, constitutes described elastic mechanism thus.
Claims (3)
1. ultra supercritical drain valve, comprise valve body, valve rod, spheroid and valve seat, it is characterized in that: described valve body top is one-body molded to have upwardly extending tubular structure to constitute link press span, described valve body is provided with the cavity volume that extends and be communicated with outlet passage to outlet side from suction side, described cavity volume has vertical tube part and tapered portion, described tapered portion is near outlet passage, described valve seat is made up of a seal valve seat and a support valve seat, described seal valve seat, spheroid and support valve seat place described cavity volume successively, the profile of described seal valve seat and tapered portion match and are located therein, described support valve seat and vertical tube part Spielpassung, described valve rod lower end penetrates to cavity volume from link press span bottom centre and is connected with the rotation of spheroid formation, the opposite side away from spheroid of described support valve seat is provided with elastic mechanism flexibly is pressed on the spheroid support valve seat, and the opposite side of spheroid is pressed on the seal valve seat.
2. ultra supercritical drain valve according to claim 1, it is characterized in that: described link press span is provided with gland, the gland center is provided with the valve rod hole of perforation, described valve rod upper and lower circumferentially is arranged with stem guiding cover and valve lever bushing respectively movingly, and described stem guiding cover and valve lever bushing are fixedly installed on respectively on the valve rod hole and valve body of gland.
3. according to the described ultra supercritical drain valve of claim, it is characterized in that: the vertical tube part of described cavity volume and tapered portion are respectively cylindrical and truncated cone, the piece that supports that a side away from spheroid of described support valve seat is provided with is that cross section and cavity volume match, the center is provided with flowing hole, and support between the valve seat and be provided with the butterfly spring, be provided with annular slot near the chamber wall of supporting the piece the other end, be arranged with the opening jump ring in the draw-in groove and described support valve seat formed spacing, constitute described elastic mechanism thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101339902A CN102287612A (en) | 2011-05-23 | 2011-05-23 | Ultra supercritical hydrophobic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101339902A CN102287612A (en) | 2011-05-23 | 2011-05-23 | Ultra supercritical hydrophobic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287612A true CN102287612A (en) | 2011-12-21 |
Family
ID=45334266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101339902A Pending CN102287612A (en) | 2011-05-23 | 2011-05-23 | Ultra supercritical hydrophobic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287612A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090734A (en) * | 2014-05-06 | 2015-11-25 | 程相杰 | Steam trap ball valve |
| CN107388018A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve |
| CN107781631A (en) * | 2017-09-08 | 2018-03-09 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve with stopper |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4428561A (en) * | 1981-11-02 | 1984-01-31 | Thompson William E | Ball valve having improved seal means |
| US4545564A (en) * | 1982-09-10 | 1985-10-08 | Krosoczka Joseph D | Valve |
| CN2371401Y (en) * | 1999-04-05 | 2000-03-29 | 江苏省国营淮海石油机械厂 | Pipe cleaning valve |
| CN101551023A (en) * | 2009-04-28 | 2009-10-07 | 胡金木 | Ball valve |
| WO2010091255A1 (en) * | 2009-02-07 | 2010-08-12 | Victaulic Company | Valve having high pressure and low pressure seals |
| CN102022561A (en) * | 2009-09-10 | 2011-04-20 | 江南阀门有限公司 | Depressurization-type metallic seal ball valve |
| CN201836433U (en) * | 2010-03-31 | 2011-05-18 | 陈国顺 | High temperature ball valve |
-
2011
- 2011-05-23 CN CN2011101339902A patent/CN102287612A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4428561A (en) * | 1981-11-02 | 1984-01-31 | Thompson William E | Ball valve having improved seal means |
| US4545564A (en) * | 1982-09-10 | 1985-10-08 | Krosoczka Joseph D | Valve |
| CN2371401Y (en) * | 1999-04-05 | 2000-03-29 | 江苏省国营淮海石油机械厂 | Pipe cleaning valve |
| WO2010091255A1 (en) * | 2009-02-07 | 2010-08-12 | Victaulic Company | Valve having high pressure and low pressure seals |
| CN101551023A (en) * | 2009-04-28 | 2009-10-07 | 胡金木 | Ball valve |
| CN102022561A (en) * | 2009-09-10 | 2011-04-20 | 江南阀门有限公司 | Depressurization-type metallic seal ball valve |
| CN201836433U (en) * | 2010-03-31 | 2011-05-18 | 陈国顺 | High temperature ball valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090734A (en) * | 2014-05-06 | 2015-11-25 | 程相杰 | Steam trap ball valve |
| CN107388018A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve |
| CN107781631A (en) * | 2017-09-08 | 2018-03-09 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve with stopper |
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| PB01 | Publication | ||
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Application publication date: 20111221 |