CN209469823U - A kind of efficient hard seal ball valve - Google Patents
A kind of efficient hard seal ball valve Download PDFInfo
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- CN209469823U CN209469823U CN201920245809.9U CN201920245809U CN209469823U CN 209469823 U CN209469823 U CN 209469823U CN 201920245809 U CN201920245809 U CN 201920245809U CN 209469823 U CN209469823 U CN 209469823U
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Abstract
The utility model relates to technical field of engineering equipment, specially a kind of efficient hard seal ball valve, the sealing surface that the valve seat and valve body inner peripheral portion are tightly connected is mutual cooperation and the stepped ramp type structure that both ends fit, the one end of the valve seat far from sphere is connect by the first seal assembly mechanism with valve bonnet seal, is sealed between the valve rod and valve body by the second seal assembly mechanism.It is locked by carbon seal ring sealing between valve body and valve deck and bolt and nut, that is, completes assembly.So the endurance of overall butterfly spring, sealing surface is eager to excel one times or more, so two way seal is than individual event sealing structure good seal performance, long service life.This product is adapted to the open and close system of hand actuator multiple types.Being mounted directly handle can be realized manual opening and closing；On valve body after mounting bracket, valve stem tip installation sleeve, all kinds of actuators can be installed, realize and remotely or automatically change manipulation.
Description
Technical field
The utility model relates to technical field of engineering equipment, specially a kind of efficient hard seal ball valve.
Background technique
Ball valve, with the rapid development of science and technology, continuously improving for production technology and product structure is rapidly developed into
For a kind of main valve class.Currently, hard seal ball valve realizes the component of pipe-line system on-off and flow control as a kind of,
Ball valve is widely used in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steels,
Occupy very important status in national economy.It has been obtained in many fields such as petroleum, chemical industry, metallurgy, water power extremely wide
It applies generally.In existing some hard seal ball valves, in some high temperature or fluid media (medium) with particle, fiber, especially
In the transport line of coal chemical industry Heisui River operating condition field, the boiler of power station metallurgy industry and fouling freezing all using often service life
It does not grow, is mainly manifested in the following aspects: first is that sealing surface, intolerant to abrasion, particulate matter in high temperature and pressure, medium etc. holds
Easily scratch valve cavity and intracavitary component；Second is that valve seat is stuck by particulate matter in medium；Third is that spring or elastic disk are in medium
It washes away lower product and is mingled with matter, valve base sealing is caused to fail；Fourth is that traditional hard seal ball valve is generally sealed using unidirectional firmly, in medium
Under pressure effect, valve rod can have bias, cause opening and closing torque big；Fifth is that unidirectional hard seal ball valve medium flow direction design surrounds
The reversed requirement of seal valve seat answer strict implement valve body to mark flow direction assembly during Tube formation, therefore cause to install
Journey is many and diverse, needs to flow to regard to medium and gives installer's progress professional training.Above-mentioned these are that traditional hard seal ball valve is more normal
See problem.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of efficient hard seal ball valve
Problem.
To achieve the above object, the utility model provides the following technical solutions:
A kind of efficient hard seal ball valve, including valve body, two valve seats, the sphere in valve body with through-hole and control ball
Body realizes that the valve rod closed and opened, the valve rod reach the outside of valve body through valve body, and the two sides of the valve body pass through bolt
Nut is connected with valve deck, two valve seats be located at the both ends of valve body and with the inconsistent composition sealing pair of sphere, the valve seat with
The sealing surface that valve body inner peripheral portion is tightly connected is mutual cooperation and the stepped ramp type structure that both ends fit, and valve seat is far from sphere
One end outer diameter is less than valve seat close to one end outer diameter of sphere, and the valve seat passes through the first seal assembly mechanism far from one end of sphere
It connect with valve bonnet seal, is sealed between the valve rod and valve body by the second seal assembly mechanism.
Preferably, first seal assembly mechanism includes pasting between spring base, spring base and valve seat in boss type
The second sealing ring, the first sealing ring that narrow section of face of spring base is bonded with valve deck internal perisporium and the thick section of spring base vertical section with
The spring assembly of valve deck internal perisporium fitting, the inner wall of the valve deck are arranged to and the matched boss type structure of spring base.
Preferably, the valve seat is provided with metal carbide sealing ring close to the end face of sphere, and the metal hard closes
Golden sealing ring is matched with the spherical surface of sphere, and metal carbide sealing ring is contracting O-shaped structure along sphere both ends runner design,
Metal carbide sealing ring and spherical ball face joint place offer slightly-inclined face cutting edge.
Preferably, the spring assembly is the first disk spring.
Preferably, the spring assembly is compressed spring.
Preferably, first sealing ring and the second sealing ring are carbon seal ring.
Preferably, the junction of the valve body and valve deck is covered with one layer of cladding gasket.
Preferably, second seal assembly mechanism includes the filler being filled in valve body stuffing-box, is pressed together on filler
Second disk spring of end face and gland positioned at the second disk spring upper end, the gland pass through gland
Bolt and nut and valve body are locked.
Preferably, the valve rod is in inverted T-type structure, is fitted with valve rod anti-wear gasket, the valve on the T stage rank of the valve rod
The vertical bottom end of bar is connected with the positioning pin with sphere top limit fixing slot synergism, the T stage rank of the positioning pin and valve rod
Place is equipped with the anti-static spring of anti-static function structure.
Preferably, the metal carbide sealing ring sealing position and sphere spherical surface use laser cladding process built-up welding not
The heat resistant and wear resistants composite material such as La Laiergao molybdenum powder of stainless steel or silicon carbide, graphene, valve seat are used with high rigidity, resistance to
The hardfacing alloy material of abrasion.
Compared with prior art, the utility model has the beneficial effects that this efficient hard seal ball valve is the valve that will be pre-installed
Body valve rod group component and valve deck valve base sealing sub-assembly are locked by carbon seal ring sealing between valve body and valve deck and bolt and nut
Tightly, that is, assembly is completed.Compared with traditional unidirectional hard sealing structure, first is that the same of valve rod can be more preferably ensured during opening and closing
Heart degree, simultaneously bi-directionally sealing structure, can guarantee opening and closing torsion than unidirectional light one times of hard sealing structure valve of tradition or more；Second is
Two-way hard seal carbon seal ring and valve seat be all made of it is split type, assembly and maintenance than traditional individual event sealing structure facilitate；Third
It is that two-way hard seal seal ball-valve is required without medium flow direction, any one end can be used as the inlet and outlet of medium, so reduce existing
Field installer's training and installer check medium flow direction and waste time；Last two-way hard seal sealing structure is harder than individual event close
The pressure that seal structure individually seals receiving wants low one times, so the endurance of overall butterfly spring, sealing surface be eager to excel one times with
On, so two way seal is than individual event sealing structure good seal performance, long service life.It is a variety of that this product is adapted to hand actuator
The open and close system of class.Being mounted directly handle can be realized manual opening and closing；Mounting bracket, valve stem tip installation sleeve on valve body
Afterwards, all kinds of actuators can be installed, realize and remotely or automatically change manipulation.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the portion the utility model A enlarged structure schematic diagram；
Fig. 3 is overlooking structure diagram in Fig. 1.
In figure: valve deck 1, the first sealing ring 2, spring assembly 3, spring base 4, the second sealing ring 5, valve seat 6, sphere 7, cladding
Gasket 8, valve body 9, anti-static spring 10, valve rod anti-wear gasket 11, filler 12, the second disk spring 13, gland 14, valve rod
15, bolt and nut 16, gland stud nut 17, metal carbide sealing ring 18.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution:
A kind of efficient hard seal ball valve, including 9, two valve seats 6 of valve body, the sphere 7 in valve body 9 with through-hole and control
Sphere 7 processed realizes that the valve rod 15 closed and opened, valve rod 15 reach the outside of valve body 9 through valve body 9, and the two sides of valve body 9 pass through
Bolt and nut 16 is connected with valve deck 1, and valve body 9 and the junction of valve deck 1 are covered with one layer of cladding gasket 8, seal, and two
Valve seat 6 be located at the both ends of valve body 9 and with the inconsistent composition sealing pair of sphere 7, valve seat 6 is tightly connected close with 9 inner peripheral portion of valve body
Cover is mutual cooperation and the stepped ramp type structure that both ends fit, and valve seat 6 is less than valve seat 6 far from one end outer diameter of sphere 7 and leans on
One end outer diameter of nearly sphere 7, the one end of valve seat 6 far from sphere 7 are tightly connected by the first seal assembly mechanism and valve deck 1, valve
It is sealed between bar 15 and valve body 9 by the second seal assembly mechanism.
First seal assembly mechanism includes close in paste between the spring base 4 of boss type, spring base 4 and valve seat 6 second
The vertical section and valve of the first sealing ring 2 and the thick section of spring base 4 that 4 narrow sections of seal 5, spring base faces are bonded with 1 internal perisporium of valve deck
The spring assembly 3 of 1 internal perisporium of lid fitting, spring assembly 3 is the first disk spring or is compressed spring, is opened up on spring base 4
Have and clicks compression with the matched spring retainer groove of spring assembly 3, the first disk spring and the two-way selection of compressed spring, torsion light one
Spring, torsion weight a little select the first disk spring, and it is to make very inconvenient, the valve on valve body that the spring of the prior art, which falls into position,
Body, which is beaten to have leaked, also not to be known, the application is to beat spring assembly 3 on valve seat 6, easy to process, can use the first disk spring
Compressed spring can be used, is double-purpose.
Spring base 4 is designed to facilitate processing and maintenance, the first sealing ring 2 and the second sealing ring at separate structure with valve seat 6
5 be carbon seal ring, and the setting of carbon seal ring prevents medium from entering 3 position of spring assembly and valve by gap well
Seat 6 end graphite grazings, cause the particulate matter in fouling or medium, erosion to suppress spring assembly 3 extremely, cause it is ineffective,
Carbon seal ring has good heatproof fireproofing function, enables valve seal in hot environment normal use；The inner wall of valve deck 1 is set
It is set to and the end face of sphere 7 is provided with metal carbide sealing ring 18 with the matched boss type structure of spring base 4, valve seat 6,
Metal carbide sealing ring 18 is matched with the spherical surface of sphere 7, and metal carbide sealing ring 18 is set along 7 both ends runner of sphere
It is calculated as contracting O-shaped structure, close to sphere 7 and is close to valve body 9 or 1 lumen position of valve deck equipped with carbon seal ring limit, graphite grazing
Circle and metal carbide sealing ring 18 are to runner collar extension spread ends and the mutual synergism in 6 front end of valve seat.It is filled in valve seat 6 and sealing
With when, first by graphite grazing snare 18 outer ring sealing ring of metal carbide sealing ring limit on, thereafter, load onto valve seat 6,
At the valve seat insert position that there are the limit of spring assembly 3 and end in 6 end of valve seat, spring assembly 3 and carbon seal ring are put on, is made
Its carbon seal ring switches in the multistage carbon seal ring limiting slot of valve deck 1 or 9 inside of valve body.To realize metal carbide
The dual-seal of sealing ring 18 and valve seat 6, also ensure reduce flow of media in sealing surface of seat is washed away, the in addition design
Thoroughly medium is isolated with spring assembly 3, medium spring assembly 3 not will cause wash away or packed particle substance or its
He influences, it is ensured that the sealing performance of valve reduces the slip for reducing medium.Metal carbide sealing ring 18 and sphere
7 spherical surface joint places offer slightly-inclined face cutting edge, and 18 cutting edge of metal carbide sealing ring is bonded with 7 spherical surface of sphere, play spherical surface
Cleaning cleaning and the function to particle, fibrous matter severing.It ensure that the substances such as particle in medium, fiber to the damage of spherome surface
Evil, metal carbide sealing ring 18 and valve seat 6 are reciprocity bi-directional configuration design, and structure design is to balancing sealing both ends
The dynamics of spring assembly 3.Opening and closing torque is reduced, meanwhile, so that both ends runner, which can be used as, flows in or out channel, do not flowed
To domination and orient sizing installation valve.18 sealing position of metal carbide sealing ring and 7 spherical surface of sphere are molten using laser
The heat resistant and wear resistants composite material such as technique built-up welding Mo Lalaiergao molybdenum powder of stainless steel or silicon carbide, graphene is applied, ensure that valve
Door sealing face, the wear-resisting of spherical surface undermine heat resistance.Valve seat 6 is using with high rigidity, anti abrasive hardfacing alloy material.
Second seal assembly mechanism includes the filler 12 being filled in 9 stuffing-box of valve body, is pressed together on 12 upper surface of filler
Second disk spring 13 and gland 14 positioned at 13 upper end of the second disk spring, gland 14 pass through gland spiral shell
Bolt nut 17 and valve body 9 are locked, and the second butterfly spring 13 has the characteristics that elastic force is big, durable, and the second butterfly spring 13 plays certainly
Compensation sealing effect can guarantee valve seal effect well, and valve rod 15 is in inverted T-type structure, be bonded on the T stage rank of valve rod 15
There is valve rod anti-wear gasket 11, the vertical bottom end of valve rod 15 is connected with the positioning pin with 7 top limit fixing slot synergism of sphere, positioning pin
With the anti-static spring 10 for being equipped with anti-static function structure at the T stage rank of valve rod 15.
Efficient hard seal ball valve provided by the utility model, compared with traditional unidirectional hard sealing structure, first is to be opened and closed
The concentricity of valve rod 15 can be more preferably ensured in the process, simultaneously bi-directionally sealing structure, can guarantee that opening and closing torsion is more unidirectional than tradition hard
Light one times of sealing structure valve or more；Second is that two-way hard seal carbon seal ring and valve seat 6 are all made of split type, assembly and dimension
It is more convenient than traditional individual event sealing structure to repair；Third is that two-way hard seal seal ball-valve is required without medium flow direction, any one end
As the inlet and outlet of medium, wasted time so reducing in-site installation worker training and installer and checking medium flow direction；Most
Afterwards two-way hard seal sealing structure individually sealed than individual event hard sealing structure receiving pressure it is one times low, so overall butterfly bullet
Spring, the endurance of sealing surface are one times or more eager to excel in whatever one does, so two way seal is than individual event sealing structure good seal performance, service life
It is long.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of efficient hard seal ball valve including valve body (9), two valve seats (6), is located at the sphere (7) with through-hole in valve body (9)
And the valve rod (15) closed and opened is realized in control sphere (7), the valve rod (15) reaches valve body (9) through valve body (9)
The two sides of outside, the valve body (9) are connected with valve deck (1) by bolt and nut (16), it is characterised in that: two valve seats
(6) positioned at valve body (9) both ends and with the inconsistent composition sealing pair of sphere (7), the valve seat (6) and valve body (9) inner peripheral portion are close
The sealing surface of envelope connection is mutual cooperation and the stepped ramp type structure that both ends fit, and outside one end of valve seat (6) separate sphere (7)
Diameter is less than valve seat (6) close to one end outer diameter of sphere (7), and the valve seat (6) passes through the first sealing group far from the one end of sphere (7)
Part mechanism and valve deck (1) are tightly connected, and are sealed between the valve rod (15) and valve body (9) by the second seal assembly mechanism.
2. a kind of efficient hard seal ball valve according to claim 1, it is characterised in that: first seal assembly mechanism packet
Include the second sealing ring (5), narrow section of the spring base (4) pasted between spring base (4), spring base (4) and valve seat (6) in boss type
The vertical section and valve deck (1) internal perisporium of the thick section of the first sealing ring (2) and spring base (4) that face is bonded with valve deck (1) internal perisporium
The spring assembly (3) of fitting, the inner wall of the valve deck (1) are arranged to and spring base (4) matched boss type structure.
3. a kind of efficient hard seal ball valve according to claim 1, it is characterised in that: the valve seat (6) is close to sphere (7)
End face be provided with metal carbide sealing ring (18), the spherical surface of the metal carbide sealing ring (18) and sphere (7)
It matches, metal carbide sealing ring (18) is contracting O-shaped structure along sphere (7) both ends runner design, and metal carbide is close
Seal (18) and sphere (7) spherical surface joint place offer slightly-inclined face cutting edge.
4. a kind of efficient hard seal ball valve according to claim 2, it is characterised in that: the spring assembly (3) is first
Disk spring.
5. a kind of efficient hard seal ball valve according to claim 2, it is characterised in that: the spring assembly (3) is compression
Spring.
6. a kind of efficient hard seal ball valve according to claim 2, it is characterised in that: first sealing ring (2) and
Two sealing rings (5) are carbon seal ring.
7. a kind of efficient hard seal ball valve according to claim 1, it is characterised in that: the valve body (9) and valve deck (1)
Junction is covered with one layer of cladding gasket (8).
8. a kind of efficient hard seal ball valve according to claim 1, it is characterised in that: second seal assembly mechanism packet
Include the filler (12) being filled in valve body (9) stuffing-box, be pressed together on filler (12) upper surface the second disk spring (13) and
Gland (14) positioned at the second disk spring (13) upper end, the gland (14) pass through gland stud nut
(17) it is locked with valve body (9).
9. a kind of efficient hard seal ball valve according to claim 8, it is characterised in that: the valve rod (15) is in inverted T shaped knot
Structure is fitted with valve rod anti-wear gasket (11) on the T stage rank of the valve rod (15), the vertical bottom end of the valve rod (15) be connected with
Antistatic is installed at the T stage rank of the positioning pin of sphere (7) top limit fixing slot synergism, the positioning pin and valve rod (15)
The anti-static spring (10) of functional structure.
10. a kind of efficient hard seal ball valve according to claim 3, it is characterised in that: the metal carbide sealing
It encloses (18) sealing position and sphere (7) spherical surface uses laser cladding process built-up welding Mo Lalaiergao molybdenum powder of stainless steel or carbonization
The heat resistant and wear resistants composite material such as silicon, graphene, valve seat (6) is using with high rigidity, anti abrasive hardfacing alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920245809.9U CN209469823U (en) | 2019-02-27 | 2019-02-27 | A kind of efficient hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920245809.9U CN209469823U (en) | 2019-02-27 | 2019-02-27 | A kind of efficient hard seal ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN209469823U true CN209469823U (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920245809.9U Active CN209469823U (en) | 2019-02-27 | 2019-02-27 | A kind of efficient hard seal ball valve |
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| CN (1) | CN209469823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695734A (en) * | 2019-02-27 | 2019-04-30 | 温州捷凯智能设备科技有限公司 | A kind of efficient hard seal ball valve |
| CN113864478A (en) * | 2021-10-09 | 2021-12-31 | 欧维克集团有限公司 | Drainage ball valve for high-temperature and high-pressure power station |
-
2019
- 2019-02-27 CN CN201920245809.9U patent/CN209469823U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695734A (en) * | 2019-02-27 | 2019-04-30 | 温州捷凯智能设备科技有限公司 | A kind of efficient hard seal ball valve |
| CN113864478A (en) * | 2021-10-09 | 2021-12-31 | 欧维克集团有限公司 | Drainage ball valve for high-temperature and high-pressure power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 325000 33 gangrong Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee after: Zhejiang juzhixin Valve Co.,Ltd. Address before: 325000 2nd floor, Room 201, building 24, No.16 Binhai 2nd Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: WENZHOU JIEKAI INTELLIGENT EQUIPMENT TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |