CN105221759A - For the stop valve of Spinning Equipments - Google Patents
For the stop valve of Spinning Equipments Download PDFInfo
- Publication number
- CN105221759A CN105221759A CN201510695935.0A CN201510695935A CN105221759A CN 105221759 A CN105221759 A CN 105221759A CN 201510695935 A CN201510695935 A CN 201510695935A CN 105221759 A CN105221759 A CN 105221759A
- Authority
- CN
- China
- Prior art keywords
- valve
- melt
- spool
- sealing area
- valve rod
- 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.)
- Pending
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
Abstract
<b> the invention discloses </b><bGreatT.Gre aT.GT stop valve for Spinning Equipments, comprise valve body, valve gap, valve rod, fastening screw trip bolt, spool, valve pocket is stretched in the underpart of valve rod and valve gap, the top of valve rod is connected by self-locking thread engagement with valve gap, valve gap pretension is passed on valve body in the underpart of fastening screw trip bolt, elastic washer is provided with between valve gap and valve body, valve body offers melt inlet and melt outlet, spool is positioned on the passage of UNICOM's melt inlet and melt outlet, the underpart of valve rod has the primary sealing area for coordinating with seal spool and the side face with valve pocket Spielpassung, and described spool has secondary sealing area.</b><bGreatT.Gre aT.GT stop valve of the present invention can when spinning functional element be changed by needs, reliably cut off melt flows rapidly, realize cut-off, under stop valve is in closed condition, stem position can not be stressed affects variation, can realize self-locking, the melt cut-off occasion being particularly suitable for the high sticky large pressure of high enthalpy uses.</b>
Description
Technical field
the invention belongs to spinning equipment field, particularly a kind of stop valve being used in Spinning Equipments.
Background technique
synthetic fiber spinning technique cools after the fibre-forming polymer of molten state is sprayed silk by aperture, obtains the process of continuous chemical fiber.And present melt-spinning technology, the large-scale production line that the multiple station of many employings operates simultaneously, in spinning process, the metering pump of component faults or production line damages and happens occasionally, if stopped by whole production line remove maintenance of equipment, equipment use cost is very high, general employing abort situation partial operation maintenance, but the melt of High Temperature High Pressure also can flow to the place that pressure is little, and from taking off the position ejection of metering pump or assembly, have an accident.So generally all arrange stopper in melt path, melt path can be closed when maintenance down.
in prior art, most employing is that contactless freezing valve device or plain edition threaded stop valve dam, but it has respective shortcoming separately: 1, contactless freezing valve device, pressurized air is adopted to blow over melt pipe road surfaces, take away heat and make ducted melt cooling form embolism, with closed melt path, but it is large for pressure reduction, melt has the operating mode of flowing and inapplicable, especially height is glued to the melt of high enthalpy, cooling time reaches ten hours, the operation stand-by period is long, and the method pressurized air use amount is large, and energy consumption is higher, 2, plain edition threaded stop valve, its valve rod cannot be fixed, easy rollback under the effect of the pressure, cutoff function is caused to be lost, and without spool, valve rod directly acts on valve body, repeatedly use rear valve body distortion cannot close melt path completely, the melt that mostly occurs is revealed, and valve body is the component being welded on spinning manifold inside, after valve body loses efficacy, needed whole line to stop production, and the cost opening spinning manifold replacing stop valve is higher, and because the thermal insulation medium in spinning process is biphenyl, easy generation chemical poisoning, and there is inflammable and explosive potential safety hazard, risk factor is large.
Summary of the invention
for overcoming deficiency of the prior art, the object of this invention is to provide the better stop valve of a kind of leakage-preventing performance.
the technical solution adopted in the present invention is: a kind of stop valve for Spinning Equipments, comprise valve body, valve gap, valve rod, fastening screw trip bolt, spool, being provided with in valve body can for the valve pocket of valve stem slides, described valve pocket is stretched in described valve rod and the underpart of valve gap, the top of described valve rod is connected by self-locking thread engagement with valve gap, described valve gap pretension is passed on valve body in the underpart of described fastening screw trip bolt, elastic washer is provided with between described valve gap and valve body, described valve body offers melt inlet and melt outlet, described spool is positioned on the passage of UNICOM's melt inlet and melt outlet, the underpart of described valve rod has the primary sealing area for coordinating with described seal spool and the side face with described valve pocket Spielpassung, and described spool has secondary sealing area, described stop valve has open mode and closed condition, under described stop valve is in closed condition, the side face of described valve rod gets lodged in described melt inlet place, and the underpart of described valve rod is pressed on spool, and described primary sealing area and described spool are formed to seal and contact, when described stop valve is in open mode, the side face of described valve rod leaves described melt inlet, and described primary sealing area leaves secondary sealing area, the melt inlet of formation described in UNICOM and the melt flow channel of melt outlet in described valve pocket.
say further, described primary sealing area and secondary sealing area all have tapering, and the tapering of described secondary sealing area is greater than the tapering of primary sealing area.
preferably, described spool is removably disposed in described valve pocket.
preferably, described valve pocket comprises the second center hole being greater than the first center hole with the first center hole of described side face Spielpassung and internal diameter, first center hole and the second center hole, at intersection forming station terrace, are disposed with multiple described elastic washer and bracing ring from the top down in the second center hole.
preferably, described valve rod has bottom-up head, the external diameter set gradually and is less than the smooth section of head and offers the thread section of self-locking thread, can radial deformation be there is in described elastic washer, and seal with the smooth section of valve rod and contact, gap between described smooth section and the first described center hole forms air exclusion chamber, is filled with air in this air exclusion chamber.
preferably, the section of described elastic washer is in the inverted V-shape that Open Side Down.
preferably, the section of described bracing ring has the tip raised up.
preferably, described self-locking thread is trapezoidal thread.
preferably, described melt inlet is mutually vertical with the shaft axis of melt outlet.
beneficial effect of the present invention is: stop valve of the present invention can when spinning functional element be changed by needs, reliably cut off melt flows rapidly, realize cut-off, under stop valve is in closed condition, stem position can not be stressed affects variation, can realize self-locking, the melt cut-off occasion being particularly suitable for the high sticky large pressure of high enthalpy uses.
Accompanying drawing explanation
accompanying drawing 1 is plan view of the present invention (stop valve be in closed condition under);
accompanying drawing 2 is plan view of the present invention (stop valve be in open mode under);
accompanying drawing 3 is explosive view of the present invention;
accompanying drawing 4 is the partial enlarged drawing at I place in accompanying drawing 1;
in figure, 1, valve rod; 2, fastening screw trip bolt; 3, valve gap; 4, valve body; 5, elastic washer; 6, bracing ring; 7, spool; 8, melt inlet; 9, melt outlet; 10, air exclusion chamber; 11, the first center hole; 12, the second center hole; 13, the 3rd center hole; 14, head; 15, smooth section; 16, thread section.
Embodiment
below in conjunction with embodiment shown in the drawings, the present invention is described in detail below, said in specification " on ", D score side is upper and lower position relation in other respective figure 1.
shown in accompanying drawing 1 ~ 4, present embodiment discloses a kind of stop valve for Spinning Equipments, be arranged on the melt path of Spinning Equipments.Stop valve comprises valve body 4, valve gap 3, valve rod 1, fastening screw trip bolt 2, spool 7.The valve pocket of a up/down perforation is offered in valve body 4, valve pocket comprises the second center hole 12, first center hole 11, the 3rd center hole 13 and the melt outlet 9 that set gradually from the top down, and the internal diameter of the second center hole 12 is greater than the internal diameter of the first center hole 11, the internal diameter of the first center hole 11 is greater than the internal diameter of the 3rd center hole 13.Be provided with melt inlet 8 at the side opening of valve body 4, spool 7 is placed in the first center hole 11, and is just stuck on step surface that the first center hole 11 and the 3rd center hole 13 have a common boundary, and is positioned on the passage of UNICOM's melt inlet 8 and melt outlet 9; Because spool 7 is wear-out parts, needing often to change, is the demand of satisfied replacing spool 7, and in the present embodiment, the design of valve body structure considers the detachable requirement of spool.Place bracing ring 6 and multiple elastic washer 5 in second center hole 12 in turn, bracing ring 6 is solid torus, bears main impacting force, and prevent the deformation failure of elastic washer 5 overstress, elastic washer 5 then under stress resiliently deformable occurs, thus plays seal action.As shown in Figure 3, the section of described elastic washer 5 is in the inverted V-shape that Open Side Down, and the section of bracing ring 6 matches with elastic washer 5, has the tip raised up, like this can better centering, prevent elastic washer 5 and bracing ring 6 is crooked or off-centring.The roughly T-shaped structure of valve gap 3, the top of valve gap 3 offers a pair tapped hole and one section of self-locking internal thread, and valve rod 1 is connected on valve gap 3 by self-locking thread, and the underpart of valve gap 3 is inserted in the second center hole 12.In order to better positioning elastic packing ring 5, valve gap 3 lower end also offers the reversed V-shape breach matched with elastic washer 5.Valve rod 1 has bottom-up head 14, the external diameter set gradually and is less than the smooth section 15 of head and offers the thread section 16 of self-locking thread.During rotary valve rod 1, valve rod 1 can move up and down in valve pocket, and can be self-locking in arbitrary position.
the underpart of valve rod 1 and valve gap 3 is stretched in described valve pocket, the top of described valve rod 1 is connected by self-locking thread engagement with valve gap 3, the underpart of described fastening screw trip bolt 2 is passed described valve gap 3 and is connected on valve body 4 by pretightening force, bracing ring 6 and elastic washer 5 are compressed by valve gap 3, elastic washer 5 radial expansion is out of shape, and sealing is adjacent in the smooth section 15 of valve rod 1.The head 14 of valve rod 1 has the primary sealing area a for being sealed and matched with described the spool 7 and side face b with the first described center hole 11 Spielpassung, spool 7 has secondary sealing area c, the inverted cone of head 14 in pointed end of this valve rod 1, spool 7 has the conical central hole to lower recess, for ensureing that primary sealing area and secondary sealing area can keep good linear sealing state all the time, the tapering of described secondary sealing area c is greater than the tapering of primary sealing area a.
described stop valve has open mode and closed condition, as shown in Figure 1, when valve rod 1 is in the first lower working position, the head 14 of valve rod 1 is relative with melt inlet 8, side face b just gets lodged in melt inlet 8 place, melt cannot be flowed to gland 3 direction, and the underpart of valve rod 1 is pressed on spool 7, and primary sealing area a and described secondary sealing area c forms linear sealing, melt canal is closed, under stop valve is in closed condition, and valve rod 1 stably can be fixed on the first working position place by self-locking thread, and therefore stop valve turns off reliable.As shown in Figure 2, rotation valve rod 1 upwards, valve rod 1 is made to be in the second higher working position, now the head 14 of valve rod 1 upwards leaves described melt inlet 8, primary sealing area a leaves secondary sealing area c, and melt can enter the first center hole 11 from melt inlet 8, and flows through spool 7, discharge from melt outlet 9, now stop valve is in open mode.Due to gland 3 being applied in effectively by fastening screw trip bolt 2, therefore under elastic washer 5 is in dilatancy state all the time, all the time seal with the smooth section of valve rod 1 and contact, external diameter due to smooth section 15 is less than the internal diameter of the first center hole 11, a gap is also there is between the outer wall of smooth section 15 and the inwall of the first described center hole 11, air is full of in this gap, form air exclusion chamber, the process that stop valve transforms from closed condition to open mode, along with valve rod 1 moves upward, this air exclusion chamber is compressed, highly diminish, the air of its inside is compressed into air " embolism ", produce the pressure melt that contends with to move upward along the gap between valve pocket and the side face b of valve rod 1 and even overflow, effectively prevent the generation of fault, play auxiliary seal effect further.
in order to ensure that, under stop valve is in closed condition, the position of valve rod maintains static, the present embodiment selects self-locking thread to be trapezoidal thread.During rotary valve rod 1, valve rod 1 can move up and down, and can be self-locking in arbitrary position.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to the present invention's spirit change or modify, and all should be encompassed within protection scope of the present invention.
Claims (9)
1. the stop valve for Spinning Equipments, comprise valve body (4), valve gap (3), valve rod (1), fastening screw trip bolt (2), spool (7), the valve pocket that valve rod (1) can be supplied to slide is provided with in valve body (4), it is characterized in that: described valve pocket is stretched in described valve rod (1) and the underpart of valve gap (3), the top of described valve rod (1) is connected by self-locking thread engagement with valve gap (3), described valve gap (3) pretension is passed on valve body (4) in the underpart of described fastening screw trip bolt (2), elastic washer (5) is provided with between described valve gap (3) and valve body (4), described valve body (4) offers melt inlet (8) and melt outlet (9), described spool (7) is positioned on the passage of UNICOM's melt inlet (8) and melt outlet (9), the underpart of described valve rod (1) has the primary sealing area (a) for being sealed and matched with described spool (7) and the side face (b) with described valve pocket Spielpassung, and (7) have secondary sealing area (c) to described spool, described stop valve has open mode and closed condition, under described stop valve is in closed condition, the side face (b) of described valve rod (1) gets lodged in described melt inlet (8) place, the underpart of described valve rod (1) is pressed on spool (7), and described primary sealing area (a) is formed to seal with described spool (7) and contacts, when described stop valve is in open mode, the side face (b) of described valve rod (1) leaves described melt inlet (8), described primary sealing area (a) leaves secondary sealing area (c), the melt inlet (8) of formation described in UNICOM and the melt flow channel of melt outlet (9) in described valve pocket.
2. the stop valve for Spinning Equipments according to claim 1, it is characterized in that: described primary sealing area (a) and secondary sealing area (c) all have tapering, and the tapering of described secondary sealing area (c) is greater than the tapering of primary sealing area (a).
3. the stop valve for Spinning Equipments according to claim 1, is characterized in that: described spool (7) is removably disposed in described valve pocket.
4. the stop valve for Spinning Equipments according to claim 1, it is characterized in that: described valve pocket comprises the second center hole (12) being greater than the first center hole with first center hole (11) of described side face (b) Spielpassung and internal diameter, first center hole (11) and the second center hole (12), at intersection forming station terrace, are disposed with multiple described elastic washer (5) and bracing ring (6) from the top down in the second center hole (12).
5. the stop valve for Spinning Equipments according to claim 4, it is characterized in that: described valve rod (1) has bottom-up head (14), the external diameter set gradually and is less than the smooth section (15) of head and offers the thread section (16) of self-locking thread, can radial deformation be there is in described elastic washer (5), and seal with the smooth section of valve rod (1) and contact, gap between described smooth section and the first described center hole forms air exclusion chamber, is filled with air in this air exclusion chamber.
6. the stop valve for Spinning Equipments according to claim 5, is characterized in that: the section of described elastic washer (5) is in the inverted V-shape that Open Side Down.
7. the stop valve for Spinning Equipments according to claim 6, is characterized in that: the section of described bracing ring (6) has the tip raised up.
8. the stop valve for Spinning Equipments according to claim 1, is characterized in that: described self-locking thread is trapezoidal thread.
9. the stop valve for Spinning Equipments according to claim 1, is characterized in that: described melt inlet (8) is mutually vertical with the shaft axis of melt outlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695935.0A CN105221759A (en) | 2015-10-23 | 2015-10-23 | For the stop valve of Spinning Equipments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695935.0A CN105221759A (en) | 2015-10-23 | 2015-10-23 | For the stop valve of Spinning Equipments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221759A true CN105221759A (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695935.0A Pending CN105221759A (en) | 2015-10-23 | 2015-10-23 | For the stop valve of Spinning Equipments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221759A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247496A (en) * | 2020-11-16 | 2021-01-22 | 常州艾肯智造科技有限公司 | High-precision machining method for valve core of floating ball type drain valve |
| CN112555496A (en) * | 2020-12-28 | 2021-03-26 | 科哲(上海)阀门有限公司 | Needle-shaped stop valve for special gas |
| CN113144802A (en) * | 2021-04-08 | 2021-07-23 | 浙江坤博精工科技股份有限公司 | Compressed air source processing device |
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|---|---|---|---|---|
| US5375813A (en) * | 1994-03-29 | 1994-12-27 | Rozinsky; Carl | Soft seat valve |
| CN2580222Y (en) * | 2002-11-06 | 2003-10-15 | 上海阀特流体控制阀门有限公司 | Self centering valve seat structure |
| RU2232327C2 (en) * | 2001-11-26 | 2004-07-10 | Андреев Александр Павлович | Shut-off adjusting valve |
| CN201763967U (en) * | 2010-09-25 | 2011-03-16 | 湖南四化建高压阀门管件有限公司 | Reducing sample valve |
| CN202484363U (en) * | 2012-03-12 | 2012-10-10 | 苏州杰威尔精密机械有限公司 | Frozen melt stop valve |
| CN202691078U (en) * | 2012-07-07 | 2013-01-23 | 常德翔宇设备制造有限公司 | Stop valve with novel sealing way |
| CN203131050U (en) * | 2013-03-19 | 2013-08-14 | 重庆国另机械有限公司 | Plunger valve of airless sprayer |
| RU135049U1 (en) * | 2012-02-03 | 2013-11-27 | Владимир Анатольевич Уфимцев | VALVE VALVE |
| CN104358910A (en) * | 2014-10-28 | 2015-02-18 | 江苏华太电力仪表有限公司 | Angle stop valve with high sealing performance and long service life |
| CN205047857U (en) * | 2015-10-23 | 2016-02-24 | 苏州金纬化纤工程技术有限公司 | A stop valve for chemical fibre spinning equipment |
-
2015
- 2015-10-23 CN CN201510695935.0A patent/CN105221759A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375813A (en) * | 1994-03-29 | 1994-12-27 | Rozinsky; Carl | Soft seat valve |
| RU2232327C2 (en) * | 2001-11-26 | 2004-07-10 | Андреев Александр Павлович | Shut-off adjusting valve |
| CN2580222Y (en) * | 2002-11-06 | 2003-10-15 | 上海阀特流体控制阀门有限公司 | Self centering valve seat structure |
| CN201763967U (en) * | 2010-09-25 | 2011-03-16 | 湖南四化建高压阀门管件有限公司 | Reducing sample valve |
| RU135049U1 (en) * | 2012-02-03 | 2013-11-27 | Владимир Анатольевич Уфимцев | VALVE VALVE |
| CN202484363U (en) * | 2012-03-12 | 2012-10-10 | 苏州杰威尔精密机械有限公司 | Frozen melt stop valve |
| CN202691078U (en) * | 2012-07-07 | 2013-01-23 | 常德翔宇设备制造有限公司 | Stop valve with novel sealing way |
| CN203131050U (en) * | 2013-03-19 | 2013-08-14 | 重庆国另机械有限公司 | Plunger valve of airless sprayer |
| CN104358910A (en) * | 2014-10-28 | 2015-02-18 | 江苏华太电力仪表有限公司 | Angle stop valve with high sealing performance and long service life |
| CN205047857U (en) * | 2015-10-23 | 2016-02-24 | 苏州金纬化纤工程技术有限公司 | A stop valve for chemical fibre spinning equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247496A (en) * | 2020-11-16 | 2021-01-22 | 常州艾肯智造科技有限公司 | High-precision machining method for valve core of floating ball type drain valve |
| CN112555496A (en) * | 2020-12-28 | 2021-03-26 | 科哲(上海)阀门有限公司 | Needle-shaped stop valve for special gas |
| CN113144802A (en) * | 2021-04-08 | 2021-07-23 | 浙江坤博精工科技股份有限公司 | Compressed air source processing device |
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| PB01 | Publication | ||
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Application publication date: 20160106 |