CN109990102A - A kind of needle valve - Google Patents
A kind of needle valve Download PDFInfo
- Publication number
- CN109990102A CN109990102A CN201910271194.1A CN201910271194A CN109990102A CN 109990102 A CN109990102 A CN 109990102A CN 201910271194 A CN201910271194 A CN 201910271194A CN 109990102 A CN109990102 A CN 109990102A
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- shaped
- channel
- cone
- 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
-
- 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
-
- 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
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K1/50—Preventing rotation of valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
A kind of needle valve, the two sides of valve wheel including valve body and rotation on it, the valve body have pipe connection portion, and the inside of the valve body offers valve plug channel, the two sides in the valve plug channel are connected separately with inlet channel and exhaust passage, and the top in the valve plug channel has valve seat；Sealing ring is provided on cone-shaped valve head, and the contact portion of valve seat and cone-shaped valve head is provided with arc-shaped contact part, it is connected between the rigid cock body and valve plug channel of cone-shaped valve head for transition fit, when cone-shaped valve head and valve seat contact closure, sealing ring is contacted with the arc-shaped contact part on valve seat again, play sealing function, and during entire opening and closing, between sealing ring and valve seat, will not both occur to rub between valve seat and rigid cock body will not also occur rigid shock, therefore, the service life and reliability of valve body can be increased, reduce maintenance frequency.
Description
Technical field
The present invention relates to natural gas transmission equipment, and in particular to a kind of needle valve.
Background technique
There are many needle-like valve-types in existing market, sealing performance is all embodied in valve body and external leakproofness,
On flow path, the seal pattern that valve rod and valve seat are formed is typically all the hard sealing between valve rod and valve seat, the gold of product valve rod
Belong to the body of rod and valve seat directly squeezes formation sealing, seal pattern easilys lead to the abrasion between valve rod and valve seat, causes to set
Standby damage is accelerated, and plant maintenance is frequent, increases the use cost of equipment, and therefore, the invention of Publication No. CN204677778U mentions
A kind of needle valve is gone out, sealing ring, but the taper face contact of sealing ring and valve plug, in long-term closure is equipped on valve seat
And during folding, tapered surface can all be contacted with sealing ring, be fixed to the position of sealing ring and the leakproofness of sealing ring
It will impact.
Summary of the invention
In order to overcome the problems of the prior art, the present invention provides a kind of needle valves.
Technical solution of the present invention is specific as follows: a kind of needle valve, the valve wheel including valve body and rotation on it, the valve
The two sides of body have pipe connection portion, and the inside of the valve body offers valve plug channel, and the two sides in the valve plug channel connect respectively
It is connected to inlet channel and exhaust passage, the top in the valve plug channel has valve seat, and the top of the valve seat slidably connects logical
The sliding block of valve wheel control lifting is crossed, the bottom of the sliding block is removably connected with cone-shaped valve head, and the outside of the valve seat has arc
Shape contact portion, the cone-shaped valve head include tapered portion, rigid cock body, nut and sealing ring, the rigidity cock body and the valve plug
Channel transition is cooperatively connected, and the sealing ring is embedded the outer wall in the rigid cock body, and the tapered portion is fixed on the rigidity
The bottom end of cock body, it is described rigidity cock body at the top of be fixed with nut.
Preferably, the outer wall of the rigid cock body offers sealing ring card slot, and the sealing ring is embedded in the sealing ring
The outer wall of card slot, the lower end face contact of the sealing ring and the nut.
Preferably, the lower rotation of the valve body is connected with maintenance valve wheel, and the inner wall in the valve plug channel slidably connects
Valve plug is repaired, is fixedly connected between the maintenance valve plug and the maintenance valve wheel by repairing screw rod, the maintenance screw rod and institute
State valve body screw thread connection.
Preferably, the maintenance valve plug and the valve plug channel transition cooperate, and the height of the maintenance valve plug is greater than described
The diameter of inlet channel.
Preferably, it is detachably connected between the sliding block and the cone-shaped valve head by screw thread, the bottom end of the sliding block is solid
Surely there are connecting rod, the other end for being threadedly secured in the connecting rod, by adjusting spiral shell between the sliding block and the valve wheel
Bar transmission connection.
Compared with prior art, beneficial effects of the present invention:
1. the present invention is provided with sealing ring on cone-shaped valve head, and the contact portion of valve seat and cone-shaped valve head is provided with arc
Contact portion, and connected between the rigid cock body and valve plug channel of cone-shaped valve head for transition fit, therefore, when cone-shaped valve head and valve
When seat contact closure, first closed between rigid cock body and valve plug channel, then sealing ring is contacted with the arc on valve seat again
Portion's contact, plays sealing function, and it is entire open and close during, between sealing ring and valve seat, valve seat and rigid cock body it
Between friction will not both occur rigid shock will not also occur, it is thus possible to increase the service life and reliability of valve body, reduce
Maintenance frequency；
2. sliding block of the invention is rectangular, therefore on it during lower slider, the rotation of angle, institute will not occur
When contacting between cone-shaped valve head and valve seat, the only effect of axial force is not in the effect of generation turnover power after contact, because
This, is avoided rotating the case where wearing, it is also ensured that the reliability of sealing；
3. the present invention is equipped with adjustable maintenance valve plug in the bottom in valve plug channel, its liter can be controlled by maintenance valve wheel
Drop, therefore, when maintenance of valve, can rotate maintenance valve wheel, move up maintenance valve plug, the outlet of inlet channel is blocked up
Plug blocks inlet channel in this way, convenient for removing the main valve body control structure on valve body, does not need pipeline and die, separately
It is detachably connected between male-tapered valve head and sliding block, is convenient for replacing.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of needle valve described in the embodiment of the present invention 1；
Fig. 2 is valve inner structural schematic diagram described in the embodiment of the present invention 1；
Fig. 3 is slide block structure schematic diagram described in the embodiment of the present invention 1；
Fig. 4 is cone-shaped valve head structural schematic diagram described in the embodiment of the present invention 1；
In figure 1 above -4,1, valve body；101, inlet channel；102, exhaust passage；103, valve plug channel；11, pipeline connects
Portion；12, valve wheel；121, adjustment screw；13, valve seat；131, arc-shaped contact part；2, maintenance valve wheel；21, screw rod is repaired；3, taper
Valve head；31, tapered portion；32, rigid cock body；321, sealing ring card slot；33, nut；34, sealing ring；4, sliding block；41, connecting rod；
42, screw thread；5, valve plug is repaired.
Specific embodiment:
The present invention is described further with reference to the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of needle valve, the two sides of the valve wheel 12 including valve body 1 and rotation on it, valve body 1 have pipe
Road interconnecting piece 11, the lower rotation of valve body 1 are connected with maintenance valve wheel 2, and pipe connection portion 11 is used to connect what it exported and inputted
Pipeline.
As shown in Figures 2 and 4, the inside of valve body 1 offers valve plug channel 103, and the two sides in valve plug channel 103 are connected separately with
Inlet channel 101 and exhaust passage 102, the gas in pipeline enter valve plug channel 103 by inlet channel 101, and valve plug is logical
The top in road 103 has valve seat 13, then enters in exhaust passage 102 by the top of valve seat 13, and the top of valve seat 13 is sliding
The dynamic sliding block 4 being connected with through the control lifting of valve wheel 12, rotation valve wheel 12 can drive adjustment screw 121 to rotate, adjustment screw
121 occur screw-driven with valve body 1, therefore adjustment screw 121 is gone up and down with movable slider 4, and the bottom of sliding block 4 is detachably connected
There is cone-shaped valve head 3, sliding block 4 drives the cone-shaped valve head 3 of its bottom mobile, and the outside of valve seat 13 has arc-shaped contact part 131, taper
Valve head 3 includes tapered portion 31, rigid cock body 32, nut 33 and sealing ring 34, rigid cock body 32 and 103 transition fit of valve plug channel
Connection, sealing ring 34 are embedded the outer wall in rigid cock body 32, and tapered portion 31 is fixed on the bottom end of rigid cock body 32, rigid cock body 32
Top be fixed with nut 33, the outer wall of rigid cock body 32 offers sealing ring card slot 321, and sealing ring 34 is embedded in sealing ring card
The outer wall of slot 321, the lower end face contact of sealing ring 34 and nut 33, the lower rotation of valve body 1 are connected with maintenance valve wheel 2, valve plug
The inner wall in channel 103 slidably connects maintenance valve plug 5, repairs and connects between valve plug 5 and maintenance valve wheel 2 by the way that maintenance screw rod 21 is fixed
It connects, maintenance screw rod 21 is threadedly coupled with valve body 1, maintenance valve plug 5 and 103 transition fit of valve plug channel, and the height for repairing valve plug 5 is big
In the diameter of inlet channel 101, when cone-shaped valve head 3 and 13 contact closure of valve seat, between rigid cock body 32 and valve plug channel 103
It is first closed, then sealing ring 34 is contacted with the arc-shaped contact part 131 on valve seat 13 again, plays sealing function, and entirely open
It opens in closing process, friction will not both occur also not between sealing ring 34 and valve seat 13, between valve seat 13 and rigid cock body 32
Rigid shock can occur, it is thus possible to increase the service life and reliability of valve body, reduce maintenance frequency.
As shown in figure 3, being detachably connected between sliding block 4 and cone-shaped valve head 3 by screw thread 42, the bottom end of sliding block 4 is fixed with
Connecting rod 41, screw thread 42 are fixed on the other end of connecting rod 41, are driven and connect by adjusting screw rod 121 between sliding block 4 and valve wheel 12
Connect, sliding block 4 be it is rectangular, therefore on it during lower slider, the rotation of angle will not occur, thus cone-shaped valve head 3 with
When contacting between valve seat 13, the only effect of axial force is not in therefore the effect of generation turnover power after contact avoids turning
The case where dynamic abrasion, it is also ensured that the reliability of sealing.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (5)
1. the two sides of a kind of needle valve, the valve wheel (12) including valve body (1) and rotation on it, the valve body (1) have pipeline
The inside of interconnecting piece (11), the valve body (1) offers valve plug channel (103), and the two sides of the valve plug channel (103) connect respectively
It is connected to inlet channel (101) and exhaust passage (102), the top of the valve plug channel (103) has valve seat (13), and feature exists
In the top of the valve seat (13) slidably connects the sliding block (4) by valve wheel (12) control lifting, the bottom of the sliding block (4)
Portion is removably connected with cone-shaped valve head (3), and the outside of the valve seat (13) has arc-shaped contact part (131), the cone-shaped valve head
It (3) include tapered portion (31), rigid cock body (32), nut (33) and sealing ring (34), the rigidity cock body (32) and the valve
The connection of channel (103) transition fit is filled in, the sealing ring (34) is embedded the outer wall in the rigid cock body (32), the tapered portion
(31) it is fixed on the bottom end of the rigid cock body (32), is fixed with nut (33) at the top of the rigidity cock body (32).
2. a kind of needle valve according to claim 1, which is characterized in that the outer wall of the rigidity cock body (32) offers close
Seal card slot (321), the sealing ring (34) are embedded the outer wall in the sealing ring card slot (321), the sealing ring (34) with
The lower end face contact of the nut (33).
3. a kind of needle valve according to claim 1, which is characterized in that the lower rotation of the valve body (1) is connected with dimension
Repair valve wheel (2), the inner wall of the valve plug channel (103) slidably connect maintenance valve plug (5), the maintenance valve plug (5) with it is described
It is fixedly connected between maintenance valve wheel (2) by repairing screw rod (21), the maintenance screw rod (21) and the valve body (1) screw thread connect
It connects.
4. a kind of needle valve according to claim 3, which is characterized in that the maintenance valve plug (5) and the valve plug channel
(103) height of transition fit, maintenance valve plug (5) is greater than the diameter of the inlet channel (101).
5. a kind of needle valve according to claim 1, which is characterized in that the sliding block (4) and the cone-shaped valve head (3) it
Between be detachably connected by screw thread (42), the bottom end of the sliding block (4) is fixed with connecting rod (41), and the screw thread (42) is fixed on
The other end of the connecting rod (41) is driven by adjusting screw rod (121) between the sliding block (4) and the valve wheel (12) and connects
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271194.1A CN109990102A (en) | 2019-04-29 | 2019-04-29 | A kind of needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271194.1A CN109990102A (en) | 2019-04-29 | 2019-04-29 | A kind of needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109990102A true CN109990102A (en) | 2019-07-09 |
Family
ID=67130945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271194.1A Pending CN109990102A (en) | 2019-04-29 | 2019-04-29 | A kind of needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109990102A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2907341A (en) * | 1957-09-03 | 1959-10-06 | Dill Mfg Co | Needle type valve for inflatable container |
| CN2760351Y (en) * | 2004-12-09 | 2006-02-22 | 薛祥元 | Horizontal pressure reducing valve converting high pressure gas into low pressure gas directly |
| CN204677778U (en) * | 2015-05-28 | 2015-09-30 | 江苏科维仪表控制工程有限公司 | A kind of needle type valve |
| CN207687455U (en) * | 2017-12-28 | 2018-08-03 | 广东省韶关市阀门厂有限公司 | A kind of horizontal installation hydraulic pressure needle valve |
| CN109139993A (en) * | 2018-11-23 | 2019-01-04 | 江苏沃慧德智能流体科技有限公司 | A kind of flange-type copper shut-off valve |
| CN208474515U (en) * | 2018-05-13 | 2019-02-05 | 惠州宏利铸造有限公司 | A kind of intelligent valve of maintenance easy to disassemble |
-
2019
- 2019-04-29 CN CN201910271194.1A patent/CN109990102A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2907341A (en) * | 1957-09-03 | 1959-10-06 | Dill Mfg Co | Needle type valve for inflatable container |
| CN2760351Y (en) * | 2004-12-09 | 2006-02-22 | 薛祥元 | Horizontal pressure reducing valve converting high pressure gas into low pressure gas directly |
| CN204677778U (en) * | 2015-05-28 | 2015-09-30 | 江苏科维仪表控制工程有限公司 | A kind of needle type valve |
| CN207687455U (en) * | 2017-12-28 | 2018-08-03 | 广东省韶关市阀门厂有限公司 | A kind of horizontal installation hydraulic pressure needle valve |
| CN208474515U (en) * | 2018-05-13 | 2019-02-05 | 惠州宏利铸造有限公司 | A kind of intelligent valve of maintenance easy to disassemble |
| CN109139993A (en) * | 2018-11-23 | 2019-01-04 | 江苏沃慧德智能流体科技有限公司 | A kind of flange-type copper shut-off valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206571994U (en) | High-pressure stop valve | |
| CN109990102A (en) | A kind of needle valve | |
| CN203906910U (en) | Axial-flow type ball check valve | |
| CN208281556U (en) | A kind of diaphragm valve | |
| CN201606504U (en) | Hard sealing angle valve | |
| CN109139938A (en) | A kind of shut-off valve | |
| CN206522490U (en) | High-performance HTHP safety valve | |
| CN212839464U (en) | Gate valve | |
| CN207406799U (en) | A kind of shut-off valve for facilitating manipulation | |
| CN2358290Y (en) | Bidirectional metal sealing ball valve | |
| CN208967094U (en) | A kind of flow control ball valve | |
| CN2729459Y (en) | Adjustable valve for two-phase mixed medium | |
| CN207261693U (en) | A kind of bimetallic (spring cone) seal elasticity antiscour structure and its shut-off valve | |
| CN216242321U (en) | Stop valve with anti-blocking mechanism | |
| CN217874235U (en) | High-temperature and high-pressure resistant valve with high sealing performance | |
| CN201071961Y (en) | Ball check valve | |
| CN209705323U (en) | A kind of ball valve made of plastic | |
| CN208982687U (en) | A kind of ball valve with porus excretorius | |
| CN1081307C (en) | Metal-sealed bidirectional ball valve | |
| CN219755446U (en) | High-pressure steam control valve | |
| CN208169561U (en) | A kind of sebific duct taper gate valve | |
| CN217815087U (en) | Side-mounted high-pressure quick-opening ball valve | |
| CN2588147Y (en) | Valve clack opened type track ball valve | |
| CN209725217U (en) | A kind of novel high-pressure heavy caliber shut-off valve | |
| CN209130277U (en) | A kind of dedicated multiple-sealed valve stem equipment of spinning welding ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190709 |
|
| WD01 | Invention patent application deemed withdrawn after publication |