CN107355551A - Inverse formula opens and closes cut-out cock - Google Patents
Inverse formula opens and closes cut-out cock Download PDFInfo
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- CN107355551A CN107355551A CN201710757101.7A CN201710757101A CN107355551A CN 107355551 A CN107355551 A CN 107355551A CN 201710757101 A CN201710757101 A CN 201710757101A CN 107355551 A CN107355551 A CN 107355551A
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- valve
- flap
- opens
- valve seat
- valve rod
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- 238000007789 sealing Methods 0.000 abstract description 61
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- 238000012423 maintenance Methods 0.000 abstract description 4
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- 239000000956 alloy Substances 0.000 description 6
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- 229910001220 stainless steel Inorganic materials 0.000 description 6
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- F16K1/48—Attaching valve members to screw-spindles
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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
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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
- F16K1/42—Valve seats
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides inverse formula and opens and closes cut-out cock, including valve body, valve seat, valve rod and flap；Valve seat and the valve body middle through-hole, the valve rod, which is arranged in the through hole of the valve body and valve seat, can descend motion；The valve seat is arranged on the valve body, and the Breadth Maximum of the flap is more than the diameter of the valve seat interior bone and below the valve seat, blind hole is provided with the middle part of the flap, for being connected with the valve rod.The inverse formula of the present invention opens and closes cut-out cock, and structure is novel, opens and closes light；Sealing surface is arranged on valve seat, and valve seat replaceable, and on-line maintenance can be achieved；Sealing is set up, avoids medium from entering bellows cavity in valve opening；Valve sealing face is linear sealing face, and is directed downward, and avoids the particulate matter in medium from accumulating and cause the abnormal damage of sealing surface, the effective service life for extending valve；Reduce parking and change, reduce the labor intensity at operating personnel scene, prevent valve leakage out of steam system and injured to caused by environment and the person.
Description
Technical field
The present invention relates to cut-out cock, in particular it relates to which inverse formula opens and closes cut-out cock.
Background technology
In oil, chemical industry or other systems, in order to prevent medium from revealing, valve is essential parts.
In the prior art, cut-out cock is moved up by flap to open valve, and flap moves down, and closes
Valve, such as the Chinese utility model that notification number is CN86208085UD Chinese utility model patents, notification number is CN2114739U
The China that patent, Publication No. CN1105741A Chinese invention patent application file, notification number are CN2338553Y is practical new
Stage valve disclosed in type patent and Publication No. CN102818055A Chinese invention patent application file, is to pass through valve
Valve moves up and opens valve, and flap moves down and closes valve.Following defect be present in this opening/shutting mode：If medium
Pressure is excessive, and flap may move slightly upward because of the pressure of medium, causes valve closed tightly, sealing
Property is bad, and required closing forces are big.
The content of the invention
In order to overcome the above, cut-out cock is all that the technology for opening up valve and closing valve downwards is asked in the prior art
Topic, the present invention provide inverse formula and open and close cut-out cock, the cut-out cock, and flap moves down opening valve, due to the pressure of medium,
Valve seal is good, and required valve closing forces are small.
In order to reach object above, the present invention adopts the following technical scheme that：Inverse formula opens and closes cut-out cock, including valve body, valve
Seat, valve rod and flap；Valve seat and the valve body middle through-hole, the valve rod are arranged in the through hole of the valve body and valve seat under energy
Upper motion；The valve seat is arranged on the valve body, and the Breadth Maximum of the flap is more than the diameter of the valve seat interior bone
And below the valve seat, blind hole is provided with the middle part of the flap, for being connected with the valve rod.The valve rod can drive described
Flap moves up and down, and the flap moves down, and opens valve, and the flap moves up, then closes valve；Using this
Mode opening/shutting valve, the pressure of medium act on flap lower surface, beneficial to the closed of valve, and close the closing forces needed for valve
It is small.
Preferably, the valve also includes valve clack cover, is through hole inside the valve clack cover, is arranged in the flap and institute
Between stating valve rod, the valve clack cover and the flap and the valve rod are detachably connected.
Any of the above-described scheme is preferably, the valve clack cover and the valve rod and flap threaded connection.
Any of the above-described scheme is preferably, and the valve also includes split annulus and valve clack cover, the split annulus arrangement
In the annular groove of the valve rod, between the valve rod and the flap, the overall diameter of the split annulus is more than the valve rod
Diameter；It is less than the through hole of the split annulus overall diameter inside the valve clack cover for diameter, is arranged in the flap and described
Between valve rod, the valve clack cover and the flap are detachably connected.Pass through small―gap suture between valve clack cover, split annulus and valve rod
Coordinate, with reference to being detachably connected between valve clack cover and flap, flap and valve rod are linked together so that the flap can
Valve rod is followed to move up and down, so as to opening/shutting valve.
Any of the above-described scheme is preferably, the valve clack cover and flap threaded connection.
Any of the above-described scheme is preferably, the blind hole diameter of flap stepped change from top to bottom, to adapt to the valve
The size of valve lid, split annulus and valve rod.
Any of the above-described scheme is preferably, and diameter first becomes larger the diameter of the outer surface of the flap from top to bottom, so
Taper into again afterwards.
Any of the above-described scheme is preferably, and the lower surface of the flap is horizontal plane.
Any of the above-described scheme is preferably, and the flap is perpendicular at maximum gauge.
Any of the above-described scheme is preferably, and the flap is formed by shaped steel or forging through finishing.
Any of the above-described scheme is preferably, the ramp built-up welding stainless steel or hard alloy of flap, and is processed and to be formed sealing
Face.
Any of the above-described scheme is preferably, and the split annulus is formed by shaped steel through finishing.
Any of the above-described scheme is preferably, and the valve clack cover is formed by shaped steel through finishing.
Any of the above-described scheme is preferably, and heap is welded with stainless steel or hard alloy on the valve seat, and process to be formed down it is close
Front cover and upper sealing surface, the lower sealing surface and the valve flap contacts, the upper sealing surface and the valve stem contacts.
Any of the above-described scheme is preferably, and the cylindrical of the valve seat is provided with metering orifice.
Any of the above-described scheme is preferably, and the metering orifice is circular or strip or oval.
Any of the above-described scheme is preferably, and the valve body is provided with top bar and got out of a predicament or an embarrassing situation, and passes through the top bar and leave from office
Rank, the valve seat are connected with the valve body.
Any of the above-described scheme is preferably, and the top bar and is got out of a predicament or an embarrassing situation and is included two steps.
Any of the above-described scheme is preferably, and the top bar and place of getting out of a predicament or an embarrassing situation, arranges sealing gasket.
Any of the above-described scheme is preferably, and the valve seat is to be formed by solid forging through finishing.
Any of the above-described scheme is preferably, and the valve body is that casting forms through finishing.
Any of the above-described scheme is preferably, and the sealing surface of the valve seat and flap is that built-up welding forms through finishing.
Any of the above-described scheme is preferably, and the valve also includes bonnet, and the bonnet detachably links with the valve body.
Any of the above-described scheme is preferably, and is provided with stuffing-box in the bonnet, and unremovably fix with the bonnet
Link together.
Any of the above-described scheme is preferably, and bellows is additionally provided with the bonnet, and the bellows is arranged in the filler
Below letter, unremovably it is fixedly connected on the valve rod, for preventing the leakage of the medium in valve use.
Any of the above-described scheme is preferably, and the bonnet is that casting forms through finishing.
Any of the above-described scheme is preferably, and the valve rod includes sealing inclined-plane, when the valve is open, the sealing inclined-plane with
The upper sealing surface contact of the valve seat, it is effective to extend to prevent medium from escaping or enter in bellows and stuffing-box cavity
The service life of bellows and stuffing-box.
Any of the above-described scheme is preferably, and built-up welding heap is welded with stainless steel or hard alloy on the inclined-plane of the valve rod, and adds
Work forms the sealing inclined-plane.
Any of the above-described scheme is preferably, and the valve rod other end is provided with operating mechanism, can make institute by the operating mechanism
Valve rod is stated to be moved upwardly or downwardly.
Any of the above-described scheme is preferably, and the operating mechanism makes the valve rod move up and down by valve stem nut screw thread,
The valve stem nut is connected with bonnet precision, is such as connected by precision connector.
Any of the above-described scheme is preferably, and the valve rod is to be formed by shaped steel through finishing.
Block valve is opened and closed according to inverse formula provided by the present invention, valve seat is connected using double step sealing with valve body, and also
Settable bonnet, which is connected, further strengthens connection, and sealing surface and lower sealing surface on valve are provided with valve seat.Flap passes through split
Annulus and valve clack cover are connected with valve rod, and flap opening/shutting valve is driven by the up and down motion of valve rod, while open and close and seal, and turn on
Or medium flow field is blocked, drive flap to move downward when valve rod moves downward, Open valve, turn on medium.The sealing of valve rod simultaneously
The upper sealing surface of inclined-plane and valve seat contacts, and is sealed in composition, prevents medium from entering bellows cavity；When valve rod moves upwards, band
Dynamic flap moves upwards, closes valve, while medium pressure itself will act on generation one on flap and press to pushing away for valve seat
Power.Sealing surface is compressed, is advantageous to the sealing of valve, reduces the sealing force closed needed for valve, reaches light opening/shutting valve
Effect.
The present invention has the advantage that：
1st, medium pressure itself is utilized, there is provided the sealing force closed required for valve, reach the purpose of light opening/shutting valve.
2nd, valve seat replaceable, the function of valve on-line maintenance can be achieved.
3rd, sealing is additionally arranged, avoids medium from entering bellows cavity in valve opening.
4th, valve sealing face is linear sealing face, and valve body sealing surface is directed downward, and the particulate matter in medium will not be accumulated
On sealing surface, the abnormal damage of sealing surface is avoided.The effective service life for extending valve.
The inverse formula of the present invention opens and closes cut-out cock, and its structure is novel, is readily produced and manufactures, and opens and closes light, service life
It is long, while on-line maintenance can also be realized；It can guarantee that the long-term operation of valve, it is ensured that system reduces parking and changed, and reduces behaviour
Make the labor intensity of personnel on site, prevent valve leakage out of steam system and injured to caused by environment and the person.
Brief description of the drawings
Fig. 1 is the structural profile illustration that the preferred embodiment of cut-out cock one is opened and closed according to the inverse formula of the present invention.
Fig. 2 is that inverse formula opens and closes cut-out cock partial enlarged drawing described in Fig. 1.
Fig. 3 is the structural profile illustration that another preferred embodiment of cut-out cock is opened and closed according to the inverse formula of the present invention.
Wherein, the implication of each label is as follows：
1- valve bodies, 2- valve seats, 3- valve rods, 4- flaps, 5- bonnets, the split annulus of 6-, 7- valve clack covers, 8- sealing gaskets, 9- valve rod spiral shells
Mother, 10 bellowss, 11- stuffing-boxes, 12- gasket seals, 13- lower sealing surfaces, the upper sealing surfaces of 14-, 15- sealing inclined-planes, 16- operations
Mechanism.
Embodiment
In order to which present disclosure is more clearly understood, further said with reference to specific embodiments and the drawings
Bright, explanation.
Embodiment 1
Inverse formula opens and closes cut-out cock, as shown in figure 1, this against formula open and close cut-out cock include valve body 1, valve seat 2, valve rod 3, flap 4,
Split annulus 6 and valve clack cover 7；Valve seat 2 and the middle through-hole of valve body 1, valve rod 3, which is arranged in the through hole of valve body 1 and valve seat 2, to be descended
Motion；The Breadth Maximum of flap 4 is more than the diameter of the interior bone of valve seat 2 and is provided with blind hole positioned at the lower section of valve seat 2, the middle part of flap 4,
For being connected with valve rod 3；Split annulus 6 is arranged in the annular groove of valve rod 3, between valve rod 3 and flap 4, outside split annulus 6
Diameter is more than the diameter of valve rod 3；The inside of valve clack cover 7 is less than the through hole of the split overall diameter of annulus 6 for diameter, is arranged in the He of flap 4
It is detachably connected between valve clack cover 7 and flap 4 between valve rod 3, such as be connected through a screw thread；The blind hole diameter of flap 4 is from upper
Change to downstairs, to adapt to the size of valve clack cover 7, split annulus 6 and valve rod 3；The diameter of the outer surface of flap 4 is from top to bottom
Diameter first becomes larger, and then tapers into again, the lower surface of flap 4 is horizontal plane, is perpendicular at maximum gauge.Valve
Coordinated between valve lid 7, split annulus 6 and valve rod 3 by small―gap suture, with reference to being detachably connected between valve clack cover 7 and flap 4,
Flap 4 and valve rod 3 are linked together so that flap 2 can follow valve rod 3 to move up and down, so as to opening/shutting valve.Valve rod 3
It other end attended operation mechanism 16, can be moved upwardly or downwardly the valve rod by operating mechanism 16.
Valve rod 3 can drive flap 4 to move up and down, and flap 4 moves down, and open valve, and flap 4 moves up, then closes
Valve closing door；Opening/shutting valve in this way, the pressure of medium act on flap lower surface, beneficial to the closed of valve, and close
Closing forces needed for valve are small.
As a kind of optional scheme, valve seat 2 is formed by solid forging essence finishing, and flap 4 is by shaped steel or forging
Formed through finishing, valve rod 3 is to be formed by shaped steel through finishing, and valve body 1 is that casting forms through finishing, and split annulus 6 is by type
Steel is formed through finishing, and valve clack cover 7 is formed by shaped steel through finishing.Connection between valve seat and valve body can use welding；Or
The valve body 1 that cut-out cock is opened and closed against formula is provided with and top bar and got out of a predicament or an embarrassing situation, and by the top bar and gets out of a predicament or an embarrassing situation, by valve seat 2 with
Valve body 1 is connected, and the top bar and gets out of a predicament or an embarrassing situation and includes two steps（Title double step, the effect that is connected are good）, and described
Top bar and place of getting out of a predicament or an embarrassing situation, are respectively arranged sealing gasket 12 and 8, sealing gasket 12 and 8 flexible graphite or polytetrafluoroethylene (PTFE) are made.
On the basis of sealing surface is arranged on into valve seat 2, the connected mode between the valve body 1 of valve seat more than 2 is made into removably, if in valve
During door use, sealing surface damage, valve can be repaired by being individually replaced valve seat, on-line maintenance can be achieved, and in certain journey
On degree, the waste of resource is avoided, reduces the generation of rubbish, serves Environmental Role.
Following improvement can further be made：The cylindrical of valve seat 2 is provided with circular or strip or oval flow
Hole.
Flap in the present embodiment, except using the shape in Fig. 1, in general shape can be also used, as long as meeting maximum
Diameter is bigger than the interior bone diameter of valve seat 2 and positioned at the lower section of valve seat 2.
Following improvement can be made：The outer surface of flap 4（Especially ramp）Built-up welding stainless steel or hard alloy, and finishing
Work forms sealing surface, and heap is welded with stainless steel or hard alloy on valve seat 2, and finishes and form lower sealing surface 13 and upper sealing surface
14, lower sealing surface 13 contacts the lower sealing of formation, when valve is closed, tissue mediators conducting with flap 4；Upper sealing surface 15 and valve rod
3 contacts are formed and sealed, and in valve opening formula, prevent medium from escaping.Between flap 4, valve rod 3, split annulus 6 and valve clack cover 7
Annexation, and the sealing surface between flap 4 and valve seat 2 is as shown in Figure 2.
With this be engaged can be with：Built-up welding built-up welding stainless steel or hard alloy on inclined-plane on valve rod 3, and（Essence）Processing
The sealing inclined-plane sealing inclined-plane 15 is formed, when the valve is open, sealing inclined-plane 15 and the upper sealing surface of valve seat 2 on valve rod 3
14 contacts are formed and sealed, and to prevent medium from escaping, sealing effectiveness is more preferable.
After medium enters from the passage on the left side, medium can produce the water that a upward power is acted on below flap 4
Average face, so as to reduce the closing forces for closing valve, this can also extend valve service life, while under setting on valve seat 2
Sealing surface 13 is engaged with the sealing surface of flap 4, and sealing effectiveness is more preferably guaranteed；When the valve is open, the sealing inclined of valve rod 3
Face 15 coordinates with the upper sealing surface 14 on valve seat 2, is sealed in formation, avoids medium from escaping.This opens and closes cut-out cock sealing against formula
Effect is good, and closing forces are small.
It can be disc to operate structure 16, can be added also or on disk with handle, in order to the behaviour of operating personnel
Make；Operating mechanism 16 can also be other shapes.
In order to improve the intensity of operating mechanism 16, ensure usage time, reinforcement can be added in the bottom of operating mechanism 16.
Embodiment 2
Inverse formula opens and closes cut-out cock, including valve body 1, valve seat 2, valve rod 3, flap 4 and valve clack cover 7, and the inside of valve clack cover 7 is through hole,
It is as different from Example 1, directly detachably connected between valve clack cover 7 and flap 4 and valve rod 3 without split annulus 6,
Such as it is connected through a screw thread, valve rod 3 and flap 4 is linked together with this so that the up and down motion of valve rod 3 can drives flap 4
Move up and down.
Embodiment 3
Inverse formula opens and closes cut-out cock, as different from Example 2, without valve clack cover 7, but directly uses welding by flap and valve
Bar is fixed together, and valve rod 3 and flap 4 are linked together with this so that the up and down motion of valve rod 3 can drive flap
4 move up and down.
In this case, there is no any gap between the blind hole in flap 4 and valve rod 3, or, flap 4 and valve rod 3
It is no any gap to contact top, to ensure that the particulate matter in medium will not be deposited on the recess of flap, the bottom of valve rod 3
Still there is part not weld together with flap 4, also, the lower surface of valve rod 3 is also not necessarily welded to connect with flap 4.Or
It is possible that the lower surface rain flap 4 of valve rod 3 is welded to connect, the also connection in part or all of gap above（Also weldering may be selected
Connect）, it is suitable that the recess of flap will not be deposited on using the particulate matter in medium.
As a kind of possible scheme, valve rod 3 and flap 4 it could also be possible that original be processed into integral parts, but
No matter which kind of mode, it is suitable that will not be deposited on the recess of flap using the particulate matter in medium.
Embodiment 4
Inverse formula opens and closes cut-out cock, as shown in figure 3, from embodiment 1,2 and 3 all unlike, on this basis, can also add valve
Lid 5, bonnet 5 are detachably linked with valve body 1, are such as bolted.Stuffing-box 11, stuffing-box 11 and bonnet 5 are provided with bonnet 5
Unremovably it is fixed together,（Such as welding）.Bellows 10 is additionally provided with bonnet 5, bellows 10 is arranged in stuffing-box
11 lower sections, are unremovably fixedly connected（Such as welding）On valve rod 3, for preventing the leakage of the medium in valve use, valve
The lower end of lid 5 is provided with the pilot hole of the motion of bellows 10.Bonnet 5 is that casting forms through finishing.Bellows 10 is used for further
Prevent the leakage of valve medium in use, and the cooperation of the upper sealing surface 14 in the sealing inclined-plane 15 and valve seat 2 on valve rod 3,
Avoid the medium in valve opening and enter bellows 10, multi-sealed, multiple security, can effectively prevent the leakage of medium, keep away
Exempt to damage environment and the person.When the valve is open, the sealing inclined-plane 15 of valve rod 3 contacts with the upper sealing surface 14 of valve seat 2,
To prevent medium from entering in bellows 10 and the cavity of stuffing-box 11, effective extension bellows 10 and stuffing-box 11 use the longevity
Life.
Following change as before can be also made on this basis：Operating mechanism 16 makes valve rod about 3 by the screw thread of valve stem nut 9
Motion, valve stem nut 9 are fixedly connected by bolt with bonnet 5.
Embodiment 5
Inverse formula opens and closes cut-out cock, on the basis of above example, in order to further reduce the labor intensity of personnel or people, also
Operating mechanism 16 can be connected with motor drive mechanism, operating mechanism 16 is operated by the way of electronic so that moved down on valve rod 3
It is dynamic, so as to drive flap 4 to move up and down, realize the Guan Yukai of valve.
Further, sensor can be also added on flap 4, and sensor is connected with controller, when sensor is examined
Measure or operating personnel by controller send instruction need open valve or close when, controller controlled motor drive operation
Mechanism 16 rotates downward or upward, and so as to be moved downward or upward with ovable valve stem 3, then flap 4 moves downward or upward, realizes
Valve is opened or closed, and whole process is automatically performed.
It should be noted that various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are carried out
Equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (10)
1. open and close cut-out cock, including valve body, valve seat, valve rod and flap against formula；Valve seat and the valve body middle through-hole, the valve
Bar, which is arranged in the through hole of the valve body and valve seat, can descend motion；The valve seat is arranged on the valve body, the flap
Breadth Maximum is more than the diameter of the valve seat interior bone and below the valve seat, and blind hole is provided with the middle part of the flap, uses
Connected in the valve rod.
2. inverse formula as claimed in claim 1 opens and closes cut-out cock, it is characterised in that：The valve also includes valve clack cover, described
It is through hole inside valve clack cover, is arranged between the flap and the valve rod, the valve clack cover and the flap and the valve rod
It is detachably connected.
3. inverse formula as claimed in claim 2 opens and closes cut-out cock, it is characterised in that：The valve clack cover and the valve rod and flap
Threaded connection.
4. inverse formula as claimed in claim 1 opens and closes cut-out cock, it is characterised in that：The valve also includes split annulus and valve
Valve lid, the split annulus is arranged in the annular groove of the valve rod, between the valve rod and the flap, the split annulus
Overall diameter be more than the valve rod diameter；It is less than the through hole of the split annulus overall diameter inside the valve clack cover for diameter,
It is arranged between the flap and the valve rod, the valve clack cover and the flap are detachably connected.
5. inverse formula as claimed in claim 4 opens and closes cut-out cock, it is characterised in that：The valve clack cover and the flap screw thread connect
Connect.
6. the inverse formula as described in claim 4 or 5 opens and closes cut-out cock, it is characterised in that：The blind hole diameter of the flap is from upper
Change to downstairs, to adapt to the size of the valve clack cover, split annulus and valve rod.
7. the inverse formula as any one of claim 1-6 opens and closes cut-out cock, it is characterised in that：The outer surface of the flap
Diameter diameter first becomes larger from top to bottom, then again taper into.
8. inverse formula as claimed in claim 7 opens and closes cut-out cock, it is characterised in that：The lower surface of the flap is horizontal flat
Face.
9. inverse formula as claimed in claim 8 opens and closes cut-out cock, it is characterised in that：The flap is vertical at maximum gauge
Plane.
10. inverse formula opens and closes cut-out cock as claimed in any one of claims 7-9, it is characterised in that：The flap is by shaped steel
Or forging forms through finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757101.7A CN107355551A (en) | 2017-08-29 | 2017-08-29 | Inverse formula opens and closes cut-out cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757101.7A CN107355551A (en) | 2017-08-29 | 2017-08-29 | Inverse formula opens and closes cut-out cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355551A true CN107355551A (en) | 2017-11-17 |
Family
ID=60288310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757101.7A Pending CN107355551A (en) | 2017-08-29 | 2017-08-29 | Inverse formula opens and closes cut-out cock |
Country Status (1)
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| CN (1) | CN107355551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230101258A1 (en) * | 2021-09-27 | 2023-03-30 | Flowserve Management Company | Valve with exchangeable packing seal cartridge |
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| CN1380506A (en) * | 2001-11-26 | 2002-11-20 | 王洪福 | Reversing opening and closing cut-off valve |
| CN2541682Y (en) * | 2002-01-07 | 2003-03-26 | 王洪福 | Dual-purpose valve |
| CN2731207Y (en) * | 2004-10-20 | 2005-10-05 | 赵清波 | Ball type valve inside |
| CN201057278Y (en) * | 2007-05-08 | 2008-05-07 | 施大钟 | Single seat regulating valve |
| CN201212575Y (en) * | 2008-07-09 | 2009-03-25 | 王晓平 | Pilot double-piston high differential pressure reducing valve |
| CN202708093U (en) * | 2012-07-08 | 2013-01-30 | 福建嘉诺阀门有限公司 | Marine stop valve |
| CN203395298U (en) * | 2013-08-20 | 2014-01-15 | 烟台艾迪精密机械股份有限公司 | Air check valve |
| CN203614759U (en) * | 2013-10-30 | 2014-05-28 | 天津市圣恺工业技术发展有限公司 | Switch-type ceramic stop valve |
| CN203963136U (en) * | 2014-07-14 | 2014-11-26 | 郭金战 | A kind of one-way valve |
| CN205261213U (en) * | 2015-12-30 | 2016-05-25 | 国家电网公司 | Online air supplement unit of SF6 electrical equipment |
| WO2016169252A1 (en) * | 2015-04-22 | 2016-10-27 | 南通市天源阀门制造有限公司 | Integrated stop valve |
| CN106594334A (en) * | 2015-10-16 | 2017-04-26 | 刘亚娟 | In-line check valve |
| CN107387776A (en) * | 2017-07-17 | 2017-11-24 | 中国船舶重工集团公司第七0三研究所 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
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2017
- 2017-08-29 CN CN201710757101.7A patent/CN107355551A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380506A (en) * | 2001-11-26 | 2002-11-20 | 王洪福 | Reversing opening and closing cut-off valve |
| CN2541682Y (en) * | 2002-01-07 | 2003-03-26 | 王洪福 | Dual-purpose valve |
| CN2731207Y (en) * | 2004-10-20 | 2005-10-05 | 赵清波 | Ball type valve inside |
| CN201057278Y (en) * | 2007-05-08 | 2008-05-07 | 施大钟 | Single seat regulating valve |
| CN201212575Y (en) * | 2008-07-09 | 2009-03-25 | 王晓平 | Pilot double-piston high differential pressure reducing valve |
| CN202708093U (en) * | 2012-07-08 | 2013-01-30 | 福建嘉诺阀门有限公司 | Marine stop valve |
| CN203395298U (en) * | 2013-08-20 | 2014-01-15 | 烟台艾迪精密机械股份有限公司 | Air check valve |
| CN203614759U (en) * | 2013-10-30 | 2014-05-28 | 天津市圣恺工业技术发展有限公司 | Switch-type ceramic stop valve |
| CN203963136U (en) * | 2014-07-14 | 2014-11-26 | 郭金战 | A kind of one-way valve |
| WO2016169252A1 (en) * | 2015-04-22 | 2016-10-27 | 南通市天源阀门制造有限公司 | Integrated stop valve |
| CN106594334A (en) * | 2015-10-16 | 2017-04-26 | 刘亚娟 | In-line check valve |
| CN205261213U (en) * | 2015-12-30 | 2016-05-25 | 国家电网公司 | Online air supplement unit of SF6 electrical equipment |
| CN107387776A (en) * | 2017-07-17 | 2017-11-24 | 中国船舶重工集团公司第七0三研究所 | A kind of bottom blowoff valve suitable for Turbo-charged Marine Boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230101258A1 (en) * | 2021-09-27 | 2023-03-30 | Flowserve Management Company | Valve with exchangeable packing seal cartridge |
| US11852261B2 (en) * | 2021-09-27 | 2023-12-26 | Flowserve Pte. Ltd. | Valve with exchangeable packing seal cartridge |
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