CN109838568A - A kind of heavy-caliber high-temperature high-voltage high-speed opening and closing knife gate valve - Google Patents
A kind of heavy-caliber high-temperature high-voltage high-speed opening and closing knife gate valve Download PDFInfo
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- CN109838568A CN109838568A CN201910237801.2A CN201910237801A CN109838568A CN 109838568 A CN109838568 A CN 109838568A CN 201910237801 A CN201910237801 A CN 201910237801A CN 109838568 A CN109838568 A CN 109838568A
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- knife gate
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Abstract
The present invention relates to a kind of heavy-caliber high-temperature high-voltage high-speed to open and close knife gate valve characterized by comprising valve component, including valve body and it is installed on the intracorporal valve plate of the valve；Upper annular pressing plate, the inlet in the fixed channel for being inserted in the valve body, forms annular groove between the periphery wall of upper annular pressing plate and the internal perisporium in the channel；Elastic seal assembly, compression are set in the annular groove, and sealing cooperation is formed between the elastic seal assembly and the upper surface of the valve plate；Lower annular pressing plate, the exit in the fixed channel for being inserted in the valve body form sealing cooperation between the lower annular pressing plate and the lower end surface of the valve plate.
Description
Technical field
The present invention relates to a kind of heavy caliber knife gate valves, open and close disconnecting link more particularly to a kind of heavy-caliber high-temperature high-voltage high-speed
Valve.
Background technique
All heavy caliber knife gate valves (knife gate valve of the bore in DN500 or more) have the following deficiencies: nothing currently on the market
Method meets simultaneously bears high temperature and pressure and within 5 seconds the problem of fast opening and closing.The knife gate valve of DN500 or more currently on the market,
Hold 120 DEG C of warm highest, pressure-bearing highest 0.6Mpa, and with the increase of bore, the ability that knife gate valve holds warm pressure-bearing is lower and lower；And
And heavy caliber knife gate valve in the market opening and closing is slow and the time is long, the major defect of even more such product, some special dimensions without
Method accomplishes fast opening and closing, the requirement that can not be competent under some special operation conditions.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of heavy-caliber high-temperature high-voltage high-speed to open and close knife gate valve, the knife
Gate valve is with higher to hold warm pressure-bearing property, can be suitable for special operation condition.
To achieve the above object, the present invention uses following technical scheme, a kind of heavy-caliber high-temperature high-voltage high-speed opening and closing disconnecting link
Valve characterized by comprising
Valve component, including valve body and it is installed on the intracorporal valve plate of the valve；
Upper annular pressing plate, the inlet in the fixed channel for being inserted in the valve body, the periphery wall of upper annular pressing plate and described
Annular groove is formed between the internal perisporium in channel；
Elastic seal assembly, compression are set in the annular groove, the elastic seal assembly and the valve plate it is upper
Sealing cooperation is formed between end face；
Lower annular pressing plate, the exit in the fixed channel for being inserted in the valve body, the lower annular pressing plate and described
Sealing cooperation is formed between the lower end surface of valve plate.
The elastic seal assembly includes the ring packing block being embedded in the annular groove, in the ring packing block
Upper surface and be spaced apart along its circumferencial direction and be equipped with multiple blind holes, be placed with spring, and the spring in each blind hole
Compression is arranged between the end face of the upper annular pressing plate and the bottom surface of the blind hole, the lower end surface of the ring packing block and institute
It states and forms sealing cooperation between the upper surface of valve plate.
Annular convex platform is formed on the periphery wall of end face thereon in the ring packing block, in the inner circumferential of the valve body
The corresponding position of wall forms the ring-shaped step with annular convex platform cooperation, and the length of the ring-shaped step is greater than annular convex platform
Length.
The axial cross section of the upper annular pressing plate and lower annular pressing plate is in L-shaped；The first axle of the upper annular pressing plate
It is inserted in the ring packing block to ring part, the first radial ringed portion and the feeder connection side of the upper annular pressing plate
End face be fastenedly connected；
Second axial annular portion of lower annular pressing plate is inserted in the channel of the valve body, and second axial rings
Sealing cooperation is formed between shape portion and the lower end surface of valve plate, the second radial ringed portion and the channel of the lower annular pressing plate go out
The end face of mouth side is fastenedly connected.
Sealing is formed by annular sealing strip between the lower end surface of the ring packing block and the upper surface of the valve plate to match
It closes, the annular sealing strip is embedded on the lower end surface of the ring packing block；
Sealing cooperation, the ring are formed by annular sealing strip between second axial annular portion and the lower end surface of valve plate
Shape sealing strip is embedded in the sealing mating surface in second axial annular portion.
In the periphery wall of the first axis ring part of the upper annular pressing plate and internal perisporium, the annular of ring packing block
The internal perisporium of the periphery wall of sealing block and valve body, the periphery wall in the second axial annular portion of the lower annular pressing plate and valve body it is interior
O-ring seal is equipped between peripheral wall.
Through-hole on the upper annular pressing plate is up big and down small bellmouth.
The valve component further includes valve deck, valve rod and driving mechanism；The valve deck is fastenedly connected on the valve body, and
The valve deck and the intracorporal cavity of valve are interconnected；One end of the valve rod, which is protruded into the valve deck and fastened with the valve plate, to be connected
It connects, the other end of the valve rod is located at outside the valve deck and connect with the output end of the driving mechanism.
The driving mechanism is equipped with multiple air inlet and air outlet using driving cylinder, the driving cylinder.
Opening and closing type hand hole is offered on the two sides of the valve deck.
The invention adopts the above technical scheme, which has the following advantages: knife gate valve of the invention include valve component,
The annular pressing plate up and down of elastic seal assembly and the valve body inlet being inserted in valve component and exit, elastic seal assembly
Compression is arranged in the annular groove formed between upper annular pressing plate and valve body, between elastic seal assembly and the upper surface of valve plate
Sealing cooperation is formed, forms sealing cooperation, the elastic self-regulated of elastic seal assembly between lower annular pressing plate and the lower end surface of valve plate
Energy conservation enough guarantees that the two way seal of knife gate valve substantially reduces valve plate so that knife gate valve, which has, preferably holds warm bearing capacity
The resistance of motion realizes the fast opening and closing of knife gate valve, and knife gate valve is enabled to be suitable for some special operation conditions.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is overlooking structure diagram of the invention；
Fig. 3 is the partial enlargement structural representation on Fig. 1 at A；
Fig. 4 is the partial enlargement structural representation on Fig. 1 at B.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below with reference to attached drawing, it is of the invention to be clearer to understand
Objects, features and advantages.It should be understood that embodiment shown in the drawings does not limit the scope of the present invention, and only it is
Illustrate the connotation of technical solution of the present invention.
As shown in figure 1, figure 3 and figure 4, the embodiment provides a kind of heavy-caliber high-temperature high-voltage high-speed to open and close disconnecting link
Valve, comprising:
Valve component 1, including valve body 11 and the valve plate being installed in valve body 11 12；
Upper annular pressing plate 2, the inlet in the fixed channel 111 for being inserted in valve body 11, the periphery wall of upper annular pressing plate 2 and logical
Annular groove 3 is formed between the internal perisporium in road 111；
Elastic seal assembly 4, compression are set in annular groove 3, the upper surface 121 of elastic seal assembly 4 and valve plate 12
Between formed sealing cooperation；
Lower annular pressing plate 5, the exit in the fixed channel 111 for being inserted in valve body 11, under lower annular pressing plate 5 and valve plate 12
Sealing cooperation is formed between end face 122.
Knife gate valve in the present embodiment, when in use, knife gate valve is in being horizontally disposed with, when valve plate 12 cuts off the channel of valve body 11
When 111, due to gravity, good seal between the lower end surface 122 of valve plate 12 and lower annular pressing plate 5, and the upper end of valve plate 12
The receiving fluid pressure generation of face 121 is small to be moved down, at this point, elastic dilatation occurs in annular groove 3 for elastic seal assembly 4, is mended
The micro-shifting for repaying the upper surface 121 of valve plate 12 forms tracking sealing between elastic seal assembly 4 and the upper surface 121 of valve plate 12
Effect guarantees to seal cooperation between elastic seal assembly 4 and the upper surface 121 of valve plate 12, to guarantee the two-way close of knife gate valve
Feng Xing, so that knife gate valve, which has, preferably holds warm bearing capacity；When valve plate 12 moves the channel 111 for opening valve body 11, elasticity
In annular groove 3 elastic telescopic can occur for seal assembly 4, substantially reduce the resistance of motion of valve plate 12, improve beating for valve plate 12
Rate is opened, realizes the fast opening and closing of knife gate valve, knife gate valve is enabled to be suitable for some special operation conditions.
In the above-described embodiments, it is preferred that elastic seal assembly 4 includes the ring packing block being embedded in annular groove 3
41, it is spaced apart in the upper surface of ring packing block 41 411 and along its circumferencial direction and is equipped with multiple blind holes 42, put in each blind hole 42
It is equipped with spring 43, and the compression of spring 43 is arranged between the end face of upper annular pressing plate 2 and the bottom surface of blind hole 42, ring packing block 41
Lower end surface 412 and valve plate 12 upper surface 121 between formed sealing cooperation.In the use process of knife gate valve, spring is utilized
43 rebound pushes ring packing block 41 to move in annular groove 3, to compensate the abrasion of ring packing block 41, guarantees knife gate valve
Leakproofness, extend the service life of knife gate valve.
In the above-described embodiments, annular convex platform is formed on the periphery wall of end face 411 thereon in ring packing block 41
413, the ring-shaped step 112 cooperated with annular convex platform 413, and ring-shaped step are formed in the corresponding position of the internal perisporium of valve body 11
112 length is greater than the length of annular convex platform 413；It is close that annular is limited using the difference in height of ring-shaped step 112 and annular convex platform 413
Motion range of the block 41 in annular groove 3 is sealed, avoids the movement of ring packing block 41 from going beyond the limit of position and causes valve plate 12 and ring
The increase of frictional resistance between shape sealing block 41.
In the above-described embodiments, it is preferred that between the lower end surface 412 of ring packing block 41 and the upper surface 121 of valve plate 12
Sealing cooperation is formed by annular sealing strip (not shown), annular sealing strip is embedded in the lower end surface of ring packing block 41
On 412.
In the above-described embodiments, it is preferred that as shown in Figure 3, Figure 4, the axial direction of upper annular pressing plate 2 and lower annular pressing plate 5 is cut
Face is in L-shaped；The first axis ring part 21 of upper annular pressing plate 2 is inserted in ring packing block 41, and the of upper annular pressing plate 2
One radial ringed portion 22 and the end face of 111 entrance side of channel are fastenedly connected；It plants in second axial annular portion 51 of lower annular pressing plate 5
Cooperate in forming sealing in the channel of valve body 11 111, and between the second axial annular portion 51 and the lower end surface 122 of valve plate 12, under
The radial ringed portion 52 of the second of annular pressing plate 5 and the end face of 111 outlet side of channel are fastenedly connected.
In the above-described embodiments, it is preferred that pass through annular between the second axial annular portion 51 and the lower end surface 122 of valve plate 12
Sealing strip forms sealing cooperation, and annular sealing strip is embedded in the sealing mating surface in the second axial annular portion 51.
In the above-described embodiments, it is preferred that close in the periphery wall and annular of the first axis ring part 21 of upper annular pressing plate 2
Seal the second axial annular of the internal perisporium of block 41, the internal perisporium of the periphery wall of ring packing block 41 and valve body 11, lower annular pressing plate 5
O-ring seal is equipped between the periphery wall in portion 51 and the internal perisporium of valve body 11；It prevents material from entering in annular groove 3, avoids
Material is contacted with spring 43.
In the above-described embodiments, it is preferred that the through-hole 23 on upper annular pressing plate 2 is up big and down small bellmouth, such object
Material flows out after the through-hole 23 of upper annular pressing plate 2 in spurting, can enter in valve body 1 to avoid material.
In the above-described embodiments, it is preferred that as shown in Fig. 2, valve component 1 further includes valve deck 13, valve rod 14 and driving machine
Structure 15, valve deck 13 are fastenedly connected on valve body 11, and the cavity in valve deck 13 and valve body 11 is interconnected, and one end of valve rod 14 is stretched
Enter in valve deck 13 and be fastenedly connected with valve plate 12, the other end of valve rod 14 is located at 13 outside of valve deck and the output with driving mechanism 15
End connection.
In the above-described embodiments, it is preferred that driving cylinder can be used in driving mechanism 15, and driving cylinder is equipped with multiple air inlets
The fast opening and closing of valve plate 12 is realized to increase the air inflow and gas output of driving cylinder in mouth and gas outlet.
In the above-described embodiments, it is preferred that offer opening and closing type hand hole 16 on the two sides of valve deck 13, facilitate valve deck
Cleaning when 13 inner cavities are blocked.
The present invention is only illustrated with above-described embodiment, and structure, setting position and its connection of each component are all can have
Changed.Based on the technical solution of the present invention, the improvement or equivalent that all principles according to the present invention carry out individual part
Transformation, should not exclude except protection scope of the present invention.
Claims (10)
1. a kind of heavy-caliber high-temperature high-voltage high-speed opens and closes knife gate valve characterized by comprising
Valve component (1), including valve body (11) and the valve plate (12) being installed in the valve body (11)；
Upper annular pressing plate (2), the inlet in the fixed channel (111) for being inserted in the valve body (11), upper annular pressing plate (2) it is outer
Annular groove (3) are formed between peripheral wall and the internal perisporium of the channel (111)；
Elastic seal assembly (4), compression are set in the annular groove (3), the elastic seal assembly (4) and the valve plate
(12) sealing cooperation is formed between upper surface (121)；
Lower annular pressing plate (5), the exit in the fixed channel (111) for being inserted in the valve body (11), the lower annular pressure
Sealing cooperation is formed between plate (5) and the lower end surface (122) of the valve plate (12).
2. a kind of heavy-caliber high-temperature high-voltage high-speed as described in claim 1 opens and closes knife gate valve, it is characterised in that: the elasticity is close
Sealing assembly (4) includes the ring packing block (41) being embedded in the annular groove (3), in the upper of the ring packing block (41)
It end face (411) and is spaced apart along its circumferencial direction and is equipped with multiple blind holes (42), is placed with spring in each blind hole (42)
(43), and the spring (43) compresses and is arranged between the end face of the upper annular pressing plate (2) and the bottom surface of the blind hole (42),
Sealing cooperation is formed between the lower end surface (412) of the ring packing block (41) and the upper surface (121) of the valve plate (12).
3. a kind of heavy-caliber high-temperature high-voltage high-speed as claimed in claim 2 opens and closes knife gate valve, it is characterised in that: in the annular
Sealing block (41) forms annular convex platform (413) on the periphery wall of end face (411) thereon, the inner circumferential in the valve body (11)
The corresponding position of wall is formed and the ring-shaped step (112) of the annular convex platform (413) cooperation, and the ring-shaped step (112)
Length is greater than the length of annular convex platform (413).
4. a kind of heavy-caliber high-temperature high-voltage high-speed as claimed in claim 2 opens and closes knife gate valve, it is characterised in that: the upper annular
The axial cross section of pressing plate (2) and lower annular pressing plate (5) is in L-shaped；
The first axis ring part (21) of the upper annular pressing plate (2) is inserted in the ring packing block (41), the upper ring
The radial ringed portion (22) of the first of shape pressing plate (2) and the end face of the channel (111) entrance side are fastenedly connected；
Second axial annular portion (51) of lower annular pressing plate (5) is inserted in the channel (111) of the valve body (11), and institute
It states and forms sealing cooperation, the lower annular pressing plate (5) between the second axial annular portion (51) and the lower end surface (122) of valve plate (12)
The second radial ringed portion (52) and the end face of the channel (111) outlet side be fastenedly connected.
5. a kind of heavy-caliber high-temperature high-voltage high-speed as claimed in claim 4 opens and closes knife gate valve, it is characterised in that: the annular is close
It seals to be formed to seal by annular sealing strip between the lower end surface (412) of block (41) and the upper surface (121) of the valve plate (12) and match
It closes, the annular sealing strip is embedded on the lower end surface (412) of the ring packing block (41)；
Sealing is formed by annular sealing strip between second axial annular portion (51) and the lower end surface (122) of valve plate (12) to match
It closes, the annular sealing strip is embedded in the sealing mating surface in second axial annular portion (51).
6. a kind of heavy-caliber high-temperature high-voltage high-speed as claimed in claim 5 opens and closes knife gate valve, it is characterised in that: in the upper ring
The periphery wall of the first axis ring part (21) of shape pressing plate (2) and internal perisporium, the ring packing block of ring packing block (41)
(41) internal perisporium of periphery wall and valve body (11), the lower annular pressing plate (5) the second axial annular portion (51) periphery wall
O-ring seal is equipped between the internal perisporium of valve body (11).
7. such as a kind of described in any item heavy-caliber high-temperature high-voltage high-speed opening and closing knife gate valves of claim 2 to 6, it is characterised in that:
Through-hole (23) on the upper annular pressing plate (2) is up big and down small bellmouth.
8. a kind of heavy-caliber high-temperature high-voltage high-speed as described in claim 1 to 6 opens and closes knife gate valve, it is characterised in that: the valve
Body component (1) further includes valve deck (13), valve rod (14) and driving mechanism (15)；The valve deck (13) is fastenedly connected in the valve body
(11) cavity on, and in the valve deck (13) and valve body (11) is interconnected；The valve is protruded into one end of the valve rod (14)
Be fastenedly connected in lid (13) and with the valve plate (12), the other end of the valve rod (14) be located at outside the valve deck (13) and with
The output end of the driving mechanism (15) connects.
9. a kind of heavy-caliber high-temperature high-voltage high-speed as claimed in claim 8 opens and closes knife gate valve, it is characterised in that: the driving machine
Structure (15) is equipped with multiple air inlet and air outlet using driving cylinder, the driving cylinder.
10. a kind of heavy-caliber high-temperature high-voltage high-speed as claimed in claim 8 opens and closes knife gate valve, it is characterised in that: the valve deck
(13) opening and closing type hand hole (16) are offered on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237801.2A CN109838568A (en) | 2019-03-27 | 2019-03-27 | A kind of heavy-caliber high-temperature high-voltage high-speed opening and closing knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237801.2A CN109838568A (en) | 2019-03-27 | 2019-03-27 | A kind of heavy-caliber high-temperature high-voltage high-speed opening and closing knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109838568A true CN109838568A (en) | 2019-06-04 |
Family
ID=66886434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910237801.2A Pending CN109838568A (en) | 2019-03-27 | 2019-03-27 | A kind of heavy-caliber high-temperature high-voltage high-speed opening and closing knife gate valve |
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| CN (1) | CN109838568A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339886A (en) * | 1964-12-01 | 1967-09-05 | M & J Valve Co | Valve construction |
| GB1419372A (en) * | 1971-10-01 | 1975-12-31 | Cort Son Ltd Robert | Gate valve |
| CN201262244Y (en) * | 2008-09-17 | 2009-06-24 | 中国石化集团洛阳石油化工工程公司 | Plate sluice valve for high-temperature solid-containing fluid |
| CN202402678U (en) * | 2011-12-28 | 2012-08-29 | 汨罗市金成管道阀门工程有限公司 | Elastic knife gate valve |
| CN202659936U (en) * | 2012-05-16 | 2013-01-09 | 泉州市沪航阀门制造有限公司 | Flexible seat seal gate valve |
| CN108104769A (en) * | 2018-02-02 | 2018-06-01 | 西南石油大学 | A kind of explosion chip fracturing control valve |
| CN210153249U (en) * | 2019-03-27 | 2020-03-17 | 北京洁绿环境科技股份有限公司 | Large-diameter high-temperature high-pressure quick opening and closing knife gate valve |
-
2019
- 2019-03-27 CN CN201910237801.2A patent/CN109838568A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339886A (en) * | 1964-12-01 | 1967-09-05 | M & J Valve Co | Valve construction |
| GB1419372A (en) * | 1971-10-01 | 1975-12-31 | Cort Son Ltd Robert | Gate valve |
| CN201262244Y (en) * | 2008-09-17 | 2009-06-24 | 中国石化集团洛阳石油化工工程公司 | Plate sluice valve for high-temperature solid-containing fluid |
| CN202402678U (en) * | 2011-12-28 | 2012-08-29 | 汨罗市金成管道阀门工程有限公司 | Elastic knife gate valve |
| CN202659936U (en) * | 2012-05-16 | 2013-01-09 | 泉州市沪航阀门制造有限公司 | Flexible seat seal gate valve |
| CN108104769A (en) * | 2018-02-02 | 2018-06-01 | 西南石油大学 | A kind of explosion chip fracturing control valve |
| CN210153249U (en) * | 2019-03-27 | 2020-03-17 | 北京洁绿环境科技股份有限公司 | Large-diameter high-temperature high-pressure quick opening and closing knife gate valve |
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