CN102537503B - Valve filler sealing device - Google Patents
Valve filler sealing device Download PDFInfo
- Publication number
- CN102537503B CN102537503B CN201010605987.1A CN201010605987A CN102537503B CN 102537503 B CN102537503 B CN 102537503B CN 201010605987 A CN201010605987 A CN 201010605987A CN 102537503 B CN102537503 B CN 102537503B
- Authority
- CN
- China
- Prior art keywords
- seal receptacle
- valve
- stuffing box
- annular groove
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
- F16K41/043—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles
- F16K41/046—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles for rotating valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a valve filler sealing device, comprising a sealing base, a filler box and a filler pressing cover. A floating ring sleeved on a valve rod is arranged at the lower part of an inner cavity of the sealing base, the filler box is arranged at the upper part of the inner cavity of the sealing base, fillers are arranged in the filler box, and the filler pressing cover is tightly pressed on the fillers, wherein the sealing base is formed by combining two half body structures, and the filler box is formed by combining two half body structures. The angle-floating sealing device disclosed by the invention is simple in structure, is convenient for the mounting and replacement of the floating ring and the sealed fillers, brings great convenience to the maintenance and repair of equipment, and is good in sealing effect.
Description
Technical field
The invention belongs to field of sealing technology, be specifically related to a kind of valve packing seal device be applied on pipeline hot-blast valve, perpendicular type gate valve.
Background technology
Valve is requisite equipment in pipeline.The hermetically-sealed construction at valve packing place generally comprises seal receptacle, stuffing box and gland, the bottom of described seal receptacle inner chamber is provided with the floating ring be set on valve rod, described stuffing box is located at the top of described seal receptacle inner chamber, arrange filler in described stuffing box, described gland is pressed on described filler.It is frequent produced problem during valve uses that valve stem packing place of valve is leaked, and therefore maintenance of equipment personnel need often to change airtight and watertight padding.Due to the cylindrical shape that the agent structure of existing seal receptacle, stuffing box is integrated, when changing filler or floating ring, need the parts of seal receptacle, stuffing box gland and outside thereof all to disassemble one by one just can carry out, thus constrain the speed changing filler, extend the time needed for replacing.How can change filler quickly and efficiently, ensure valve rod No leakage, be problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of valve packing seal device facilitating airtight and watertight padding to install, change, greatly shorten maintenance time and save maintenance cost.
In order to solve the problems of the technologies described above, present invention employs following technical scheme: a kind of valve packing seal device, comprise seal receptacle, stuffing box and gland, the bottom of described seal receptacle inner chamber is provided with the floating ring be set on valve rod, described stuffing box is located at the top of described seal receptacle inner chamber, arranges filler in described stuffing box, and described gland is pressed on described filler, wherein, described seal receptacle is formed by two halfbody textural associations; Described stuffing box is formed by two halfbody textural associations.
As preferably, two and half body structures of described seal receptacle are symmetrical about the middle vertical plane of described seal receptacle; Two and half body structures of described stuffing box are symmetrical about the middle vertical plane of described stuffing box.
As preferably, two and half body structures of described seal receptacle are respectively equipped with a pair lug, are connected by securing member between the described lug be docking together respectively.
As preferably, on the periphery of two and half body structures of described stuffing box, equal correspondence offers at least one first ring connected in star, is embedded for by two described halfbody fastening structures circlip together or spring in described first ring connected in star.
As preferably, the inwall of described seal receptacle bottom offers the second annular groove that quantity is corresponding with the quantity of described floating ring, described floating ring is located in described second annular groove, and can move radially radial floating in described second annular groove along with described valve rod.
As preferably, the internal diameter of described second annular groove is greater than the external diameter of described floating ring.
As preferably, the top of described seal receptacle outside is provided with the first flange, and described stuffing box outside is provided with the second flange, and described first flange is connected by securing member with the second flange.
As preferably, the outside lower end of described seal receptacle is provided with the face of cylinder and lower surface that coordinate with the counterbore at the valve rod hole place on the valve gap of described valve, the bottom of described seal receptacle outside is provided with three-flange, and described seal receptacle can be connected with the valve gap of described valve by described three-flange.
As preferably, described floating ring is the annulus be spliced by multiple ring section head and the tail, the excircle of the described floating ring be spliced by multiple ring section head and the tail offers the 3rd annular groove, is embedded with for by fastening for the multiple ring section spring be stitched together in described 3rd annular groove.
As preferably, the end face of described ring section is all tangent with the inner cylinder face of described floating ring.
Compared with prior art, beneficial effect of the present invention is:
1, because the seal receptacle in valve packing seal device of the present invention and stuffing box all adopt split-type structural, therefore installation and the replacing of filler in stuffing box is facilitated, substantially reduce maintenance time, save maintenance cost, thus bring great convenience also to plant maintenance and maintenance.
2, the floating ring in valve packing seal device of the present invention structure is set and set-up mode effectively ensure that sealing effectiveness.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of valve packing seal device of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to profile.
Fig. 3 is the perspective view of half body structure of seal receptacle in valve packing seal device of the present invention.
Fig. 4 is the perspective view of half body structure of stuffing box in valve packing seal device of the present invention.
Fig. 5 is the perspective view that half body structure of seal receptacle in valve packing seal device of the present invention and half body structure of stuffing box combine.
Fig. 6 is the structural representation of the floating ring in valve packing seal device of the present invention.
Fig. 7 is the using state sectional view of valve packing seal device of the present invention.
Fig. 8 is the enlarged drawing of C part in Fig. 7.
The sectional view in another direction of the using state of Fig. 9 valve packing seal device of the present invention.
Description of symbols
1-seal receptacle 2-floating ring
3-first spring 4-" O " RunddichtringO
5-stuffing box 6-second spring
7-filler 8-gland
9-first securing member 10-second securing member
11-the 3rd securing member 12-the 4th securing member
13-oil supply port 14-metal o-ring
15-seal receptacle inner chamber 18-lug
19-first ring connected in star 20-second annular groove
21-ring section 22-end face
23-the 3rd annular groove 24-first flange
25-second flange 26-valve gap
The 27-valve rod 28-face of cylinder
29-three-flange
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Fig. 1 is the plan structure schematic diagram of valve packing seal device of the present invention.Fig. 2 is that the A-A of Fig. 1 is to profile.As depicted in figs. 1 and 2, valve packing seal device of the present invention, comprise seal receptacle 1, stuffing box 5 and gland 8, the bottom of the inner chamber of seal receptacle 1 is provided with the floating ring 2 will be set on the valve rod of valve in a state of use, stuffing box 5 is located at the top of the inner chamber of seal receptacle 1, arrange filler 7 in stuffing box 5, the top of filler 7 arranges the gland 8 being used for being pressed on by filler 7 in stuffing box 5.Gland 8 is fixed on stuffing box 5 by the 4th securing member 12, and can adjust the tightness degree of filler 7 in stuffing box 5 by the 4th securing member 12.The 4th securing member 12 in the present embodiment adopts the combination of bolt, nut and pad, and the screw-in of adjusting bolt or back-out just can adjust the tightness degree of filler 7.
Fig. 3 is the perspective view of half body structure of seal receptacle in valve packing seal device of the present invention.Fig. 4 is the perspective view of half body structure of stuffing box in valve packing seal device of the present invention.Fig. 5 is the perspective view that half body structure of seal receptacle in valve packing seal device of the present invention and half body structure of stuffing box combine.As shown in Figures 3 to 5, seal receptacle 1 is formed by the halfbody textural association of two as shown in Figure 3, and stuffing box 5 is formed by the halfbody textural association of two as shown in Figure 4.Namely the structure of integral type in original technology is changed.
As shown in Figure 3, this half body structure of seal receptacle 1 facilitates installation and the replacing of floating ring 2.As a preferred embodiment of the present invention, two and half body structures of seal receptacle 1 are symmetrical about the middle vertical plane of seal receptacle 1, and two and half such body structures make the easier for installation of floating ring 2, and the processing and manufacturing of himself is also convenient.As shown in Figure 1, two and half body structures of seal receptacle 1 can adopt the first securing member 9 to connect, and can locate (not shown) with pin further.The first securing member 9 in the present embodiment is the combination of bolt, nut and pad.In order to detachable for two and half body structures tightening together is formed seal receptacle 1, the present embodiment have employed such structure: as shown in Figure 1, two and half body structures of seal receptacle 1 are respectively equipped with a pair lug 18, are connected by the first securing member 9 between the lug 18 be docking together respectively.
As shown in Figure 4, the structure of this split type stuffing box 5 facilitates installation and the replacing of filler 7.As a preferred embodiment of the present invention, in order to the convenience of processing and assembling, two and half body structures of stuffing box 5 are symmetrical about the middle vertical plane of stuffing box 5.In order to detachable for two and half body structures tightening together is formed stuffing box 5, the present embodiment have employed such structure: on the periphery of two and half body structures of stuffing box 5, equal correspondence offers at least one first ring connected in star 19, is embedded for by two described halfbody fastening structures circlip together or spring in first ring connected in star 19.Namely at least one first ring connected in star 19 is offered around the periphery combining two and half body structures forming stuffing box 5.First ring connected in star 19 offer quantity, namely the magnitude setting of circlip or spring can be determined as required, if when stuffing box 5 is larger compared with length and width degree, needs the quantity of first ring connected in star 19 that arranges then more, otherwise then less.In the present embodiment, the quantity of first ring connected in star 19 is 2.As shown in Figure 2, be the first spring 3 for what two described halfbody fastening structures were adopted together in the present embodiment.Certainly, also can adopt other modes by two described halfbody fastening structures together, if can reach for convenience detach and fastening effect firmly.
As shown in Figure 6, floating ring 2 is the annulus be spliced by multiple ring section 21 head and the tail, the excircle of the floating ring 2 be spliced by multiple ring section 21 head and the tail offers in the 3rd annular groove the 23, three annular groove 23 and is embedded with for by fastening for multiple ring section 21 the second spring 6 be stitched together.Certainly, other modes also can be adopted multiple ring section 21 to be tightened together, such as, wear in multiple ring section 21 inside and can be drawn in as the circular elastomeric element that can it be made when needed to extend out again.
As a kind of preferred version of the present embodiment, the end face 22 of multiple ring section 21 is all tangent with the inner cylinder face of floating ring 2.Namely floating ring 2 is tangentially divided into multiple ring section 21, and then multiple ring section 21 is tightened together.Ring section 21 is in the present embodiment three altogether, can certainly be more than four.This ring segment structure of floating ring 2 is convenient to assembling, and meanwhile, gas is easily from radial direction to external leakage, and tangentially cutting does not affect sealing property.
As shown in Fig. 2, Fig. 3 and Fig. 5, because seal receptacle 1 adopts two halfbody textural associations to form, therefore the setting of floating ring 2 in the bottom of the cavity 15 of seal receptacle 1 is just very convenient.In order to reach better sealing effectiveness.The inwall of the bottom of seal receptacle 1 inner chamber 15 offers the second annular groove 20 that quantity is corresponding with the quantity of floating ring 2, and floating ring 2 is located in the second annular groove 20, and can move radially radial floating in the second annular groove 20 along with valve rod.As a kind of preferred version of the present embodiment, the internal diameter of the second annular groove 20 is greater than the external diameter of floating ring 2.Instead of directly floating ring 2 is arranged in the bottom of seal receptacle inner chamber 15 as in prior art, in order to play better sealing effectiveness, the present invention preferably adopts and arrange multiple floating ring 2 in seal receptacle 1, forms floating ring group.Each floating ring 2 is separately positioned in second annular groove 20.Multiple second annular groove 20 defines labyrinth form, thus adds sealing.Floating ring 2 in the present embodiment is three, and accordingly, the second annular groove 20 is also three.
As shown in Figures 2 to 5, the top of the outside of seal receptacle 1 is provided with first method 24, and stuffing box 5 outside is provided with the second flange 25, first flange 24 and is connected by the second securing member 10 with the second flange 25.Thus stuffing box 5 and seal receptacle 1 are linked together.
In order to ensure that valve packing seal device of the present invention has good sealing effectiveness further, fillet, oblique angle or right angle have been led in the bottom of stuffing box 5, arrange the O RunddichtringO 4 be positioned on right angle, fillet or oblique angle between stuffing box 5 and seal receptacle 1.Shown in the present embodiment is Dao You right angle, bottom at stuffing box 5, and O RunddichtringO 4 is arranged in right angle.
In order to ensure the lubrication of angle of the present invention floating seal, the seal receptacle 1 between two floating rings 2 is arranged 1-2 oil supply port 13 or lubricating cup.
Fig. 7 is the using state sectional view of valve packing seal device of the present invention.Fig. 8 is the enlarged drawing of C part in Fig. 7.The sectional view in another direction of the using state of Fig. 9 valve packing seal device of the present invention.As shown in Figure 7, Figure 8 and Figure 9, the outside lower end of seal receptacle 1 is provided with the face of cylinder 28 and lower surface that coordinate with the counterbore at the valve rod 27 hole place on the valve gap 26 of valve, metal o-ring or temperature resistant rubber pad 14 are set between the lower surface of seal receptacle 1 and the counterbore of valve gap, and bonding with high-temperature plastic.The bottom of seal receptacle 1 outside is provided with three-flange 29, and seal receptacle 1 can be connected by the 3rd securing member 11 with the valve gap 26 of valve by three-flange 29.
In use, floating ring 2 holds valve rod 27 all the time tightly, and do to move (float, namely do not fix) perpendicular to the direction of axis in seal receptacle 1 with valve rod 27, can also scrape when valve rod 27 moves along axis and be attached on dust on valve rod 27 and other is dirty.Floating ring 2 can also play the effect of damping decompression in addition, and damping is reduced pressure, and the pressure that the pressure in valve pocket is delivered between valve rod 27 and filler 7 reduces, and makes filler 7 easily sealed valve stem 27.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (7)
1. a valve packing seal device, comprise seal receptacle, stuffing box and gland, the bottom of described seal receptacle inner chamber is provided with stuffing box described in the floating ring that is set on valve rod and is located at the top of described seal receptacle inner chamber, in described stuffing box, filler is set, described gland is pressed on described filler, it is characterized in that, described seal receptacle is formed by two halfbody textural associations; Described stuffing box is formed by two halfbody textural associations, the inwall of described seal receptacle bottom offers multiple second annular groove, multiple described second annular groove forms labyrinth form, the quantity of described floating ring is corresponding with the second annular groove, described floating ring is located in described second annular groove, and can move radially radial floating in described second annular groove along with described valve rod;
Described floating ring is the annulus be spliced by multiple ring section head and the tail, the excircle of the described floating ring be spliced by multiple ring section head and the tail offers the 3rd annular groove, is embedded with for by fastening for the multiple ring section spring be stitched together in described 3rd annular groove; The end face of described ring section is all tangent with the inner cylinder face of described floating ring.
2. valve packing seal device according to claim 1, is characterized in that, two and half body structures of described seal receptacle are symmetrical about the middle vertical plane of described seal receptacle; Two and half body structures of described stuffing box are symmetrical about the middle vertical plane of described stuffing box.
3. valve packing seal device according to claim 1 and 2, is characterized in that, two and half body structures of described seal receptacle are respectively equipped with a pair lug, is connected between the described lug be docking together respectively by securing member.
4. valve packing seal device according to claim 1 and 2, it is characterized in that, on the periphery of two and half body structures of described stuffing box, equal correspondence offers at least one first ring connected in star, is embedded for by two described halfbody fastening structures circlip together or spring in described first ring connected in star.
5. valve packing seal device according to claim 1, is characterized in that, the internal diameter of described second annular groove is greater than the external diameter of described floating ring.
6. valve packing seal device according to claim 1 and 2, is characterized in that, the top of described seal receptacle outside is provided with the first flange, and described stuffing box outside is provided with the second flange, and described first flange is connected by securing member with the second flange.
7. valve packing seal device according to claim 1 and 2, it is characterized in that, the outside lower end of described seal receptacle is provided with the face of cylinder and lower surface that coordinate with the counterbore at the valve rod hole place on the valve gap of described valve, the bottom of described seal receptacle outside is provided with three-flange, and described seal receptacle can be connected with the valve gap of described valve by described three-flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010605987.1A CN102537503B (en) | 2010-12-24 | 2010-12-24 | Valve filler sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010605987.1A CN102537503B (en) | 2010-12-24 | 2010-12-24 | Valve filler sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537503A CN102537503A (en) | 2012-07-04 |
| CN102537503B true CN102537503B (en) | 2015-04-29 |
Family
ID=46345127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010605987.1A Expired - Fee Related CN102537503B (en) | 2010-12-24 | 2010-12-24 | Valve filler sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537503B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653858A (en) * | 2013-11-18 | 2015-05-27 | 费希尔控制国际公司 | Methods And Apparatus To Load Valve Packing |
| CN104806375B (en) * | 2015-05-06 | 2018-01-30 | 江苏科技大学 | A kind of two-stroke cross-head diesel engine stuffing box device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457329Y (en) * | 2000-10-12 | 2001-10-31 | 廖启新 | Multifunction polish rod sealing device |
| CN2658445Y (en) * | 2002-08-15 | 2004-11-24 | 李明生 | Dismountable water pump or valve packing gland |
| CN2809388Y (en) * | 2005-07-26 | 2006-08-23 | 世林（漯河）冶金设备有限公司 | Full floating seal device for valve rod of hot blast valve |
| CN201401310Y (en) * | 2009-04-29 | 2010-02-10 | 王淑桂 | Packing sealing ring of gas compressor |
| CN201902680U (en) * | 2010-12-24 | 2011-07-20 | 秦皇岛秦冶重工有限公司 | Stuffing sealing device for valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1052726A (en) * | 1911-08-14 | 1913-02-11 | Us Metallic Packing Co | Metallic rod-packing. |
| JPH11257530A (en) * | 1998-03-16 | 1999-09-21 | Kurimoto Ltd | Leakage prevention structure for gland part of valve |
| US6116573A (en) * | 1998-12-22 | 2000-09-12 | Cornette Technology, Llc | Packing system for valves |
-
2010
- 2010-12-24 CN CN201010605987.1A patent/CN102537503B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457329Y (en) * | 2000-10-12 | 2001-10-31 | 廖启新 | Multifunction polish rod sealing device |
| CN2658445Y (en) * | 2002-08-15 | 2004-11-24 | 李明生 | Dismountable water pump or valve packing gland |
| CN2809388Y (en) * | 2005-07-26 | 2006-08-23 | 世林（漯河）冶金设备有限公司 | Full floating seal device for valve rod of hot blast valve |
| CN201401310Y (en) * | 2009-04-29 | 2010-02-10 | 王淑桂 | Packing sealing ring of gas compressor |
| CN201902680U (en) * | 2010-12-24 | 2011-07-20 | 秦皇岛秦冶重工有限公司 | Stuffing sealing device for valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102537503A (en) | 2012-07-04 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150429 Termination date: 20191224 |