CN209431064U - A kind of double containment antiscour drain valve - Google Patents
A kind of double containment antiscour drain valve Download PDFInfo
- Publication number
- CN209431064U CN209431064U CN201821914852.1U CN201821914852U CN209431064U CN 209431064 U CN209431064 U CN 209431064U CN 201821914852 U CN201821914852 U CN 201821914852U CN 209431064 U CN209431064 U CN 209431064U
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- Prior art keywords
- valve
- valve rod
- seat
- seal layer
- hold
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Abstract
The utility model discloses a kind of double containment antiscour drain valves, including valve body, metal gasket, valve seat, stream cover, inner spool, flap, valve rod, valve rod bracket, packing seal layer, stud, nut, gasket, hold-down grid, valve rod fixing seat and handwheel, valve inner is equipped with valve seat, metal gasket is equipped between valve seat and stream cover, inner spool is equipped on the upside of valve seat, the upside of inner spool is equipped with flap, the upside of flap is equipped with valve rod, packing seal layer is equipped between the top inner side and valve rod of valve body, the upside of packing seal layer is equipped with hold-down grid, valve rod bracket is housed on hold-down grid, valve rod fixing seat is equipped among valve rod bracket, valve stem tip valve rod stent outer is equipped with handwheel, several apertures are arranged in the utility model on valve seat, when valve opening, sealing surface does not have media contact, opening half just has medium slow Into reducing the erosion of packing seal layer, improve sealing effect, extend the service life of drain valve.
Description
Technical field
The utility model relates to drain valve technical field, specially a kind of double containment antiscour drain valve.
Background technique
Drain valve is a kind of valve, also referred to as steam trap, drain valve, is by condensed water, air and the dioxy in vapour system
Change carbon gas to be discharged as early as possible, while being automatically prevented from the leakage of steam to the maximum extent, the various types of drain valve are had nothing in common with each other
Performance, when selecting drain valve, then the Ying Xuanqi characteristic optimum operation that is able to satisfy steam-heating apparatus first just considers other visitors
Sight condition selects your required drain valve to be only correct and effective in this way, and existing drain valve is when opening, medium moment
It pours and enters body cavity, be easy to cause the flash distillation and cavitation of sealing surface, service life is short.
Utility model content
The purpose of this utility model is to provide a kind of double containment antiscour drain valves, and it is small that several are arranged on valve seat
Hole, when valve opening, sealing surface does not have media contact, and opening to half just has medium to slowly enter, and reduces packing seal layer
Erosion, improve sealing effect, extend the service life of drain valve, can solve the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of double containment antiscour drain valve, including valve body, metal gasket, valve seat, stream cover, inner spool, flap, valve
Bar, valve rod bracket, packing seal layer, stud, nut, gasket, hold-down grid, valve rod fixing seat and handwheel, the valve inner
It is equipped with equipped with valve seat, on the outside of the valve seat and flows cover, metal gasket, the valve seat upside are equipped between the valve seat and stream cover
Equipped with inner spool, the upside of the inner spool is equipped with flap, and the upside of the flap is equipped with valve rod, the top inner side of the valve body
Packing seal layer is equipped between valve rod, the upside of the packing seal layer is equipped with hold-down grid, the right side of the hold-down grid
Equipped with stud, the stud is equipped with nut, and gasket is equipped between the nut and hold-down grid, is equipped on the hold-down grid
Valve rod bracket, the valve rod bracket centre are equipped with valve rod fixing seat, and the valve stem tip valve rod stent outer is equipped with handwheel.
Preferably, the left side of the valve rod fixing seat connects valve rod bracket, and the valve rod is fixed in valve rod fixing seat.
Preferably, the stud runs through the right side of hold-down grid and is secured with nuts.
Preferably, the valve seat is equipped with several apertures.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model double containment antiscour drain valve, during Open valve, flap is upward under the action of valve rod
It is mobile, so that the outer ring seal face of outer packing seal layer and valve seat is located remotely from each other, at this point, inner spool is protected always under the action of the spring
The trend extended downwardly is held, so that the inner ring seal face that interior packing seal layer continues to be close to valve seat is moved up when flap continues to move up
After distance is more than the extension elongation of inner spool, valve opening, on the contrary then valve is closed, and valve seat is equipped with several apertures, when
Sealing surface does not have media contact when valve opening, and opening to half just has medium to slowly enter, and reduces rushing for packing seal layer
Erosion improves sealing effect, extends the service life of drain valve.
Detailed description of the invention
Fig. 1 is the front cross-sectional structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that cover is flowed in the utility model；
In figure: 1, valve body；2, metal gasket；3, valve seat；4, stream covers；5, inner spool；6, flap；7, valve rod；8, valve rod
Bracket；9, packing seal layer；10, stud；11, nut；12, gasket；13, hold-down grid；14, valve rod fixing seat；15, handwheel.
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.
Referring to Fig. 1, a kind of double containment antiscour drain valve, including valve body 1, metal gasket 2, valve seat 3, stream cover 4, interior
Spool 5, flap 6, valve rod 7, valve rod bracket 8, packing seal layer 9, stud 10, nut 11, gasket 12, hold-down grid 13, valve rod
Fixing seat 14 and handwheel 15, valve seat 3 is equipped with inside valve body 1, and valve seat 3 is equipped with several apertures, the sealing surface when valve opening
There is no media contact, opening to half just has medium to slowly enter, and reduces the erosion of packing seal layer 9, sealing effect is higher
It is good, stream cover 4 is equipped on the outside of valve seat 3, stream cover 4 covers on the end face in valve seat 3, is equipped with metal gasket between valve seat 3 and stream cover 4
Piece 2 is equipped with inner spool 5 on the upside of valve seat 3, and inner spool 5 is the primary structure inside drain valve, and the upside of inner spool 5 is equipped with flap
6, the upside of flap 6 is equipped with valve rod 7, and valve rod 7 controls the on and off of drain valve, the top of valve body 1 for connecting handwheel 15
Packing seal layer 9 is equipped between end inside and valve rod 7, the upside of packing seal layer 9 is equipped with hold-down grid 13, hold-down grid 13
Right side is equipped with stud 10, is connected between stud 10 and nut 11 by fixing bolt, and stud 10 is equipped with nut 11, and stud 10 passes through
It wears the right side of hold-down grid 13 and is fixed with nut 11, gasket 12 is equipped between nut 11 and hold-down grid 13, gasket 12 is to spiral shell
Connection between mother 11 and hold-down grid 13 helps out, and valve rod bracket 8 is housed on hold-down grid 13, and valve rod bracket 8 is used for
Auxiliary support valve rod 7 is equipped with valve rod fixing seat 14 among valve rod bracket 8, and for valve rod fixing seat 14 for fixing valve rod 7, valve rod is solid
The left side of reservation 14 connects valve rod bracket 8, and valve rod 7 is fixed in valve rod fixing seat 14, sets on the outside of 7 top valve rod bracket 8 of valve rod
There is handwheel 15, passes through the rotating opening or closing drain valve of handwheel 15.
Working principle: the utility model double containment antiscour drain valve, during Open valve, flap 6 is in valve rod 7
Under the action of move up so that the outer ring seal face of outer packing seal layer 9 and valve seat 3 is located remotely from each other, at this point, inner spool 5 exists
The trend extended downwardly is remained under spring effect, so that interior packing seal layer 9 continues the inner ring seal face for being close to valve seat 3,
When flap 6 continues to move up, after moving up the extension elongation that distance is more than inner spool 5, valve opening, on the contrary then valve is closed, and valve
Seat 3 is equipped with several apertures, and when valve opening, sealing surface does not have a media contact, unlatching just have to half medium slowly into
Enter, reduce the erosion of packing seal layer 9, improves sealing effect, extend the service life of drain valve.
In summary: the utility model double containment antiscour drain valve, during Open valve, flap 6 is in valve rod 7
Under the action of move up so that the outer ring seal face of outer packing seal layer 9 and valve seat 3 is located remotely from each other, at this point, inner spool 5 exists
The trend extended downwardly is remained under spring effect, so that interior packing seal layer 9 continues the inner ring seal face for being close to valve seat 3,
When flap 6 continues to move up, after moving up the extension elongation that distance is more than inner spool 5, valve opening, on the contrary then valve is closed, and valve
Seat 3 is equipped with several apertures, and when valve opening, sealing surface does not have a media contact, unlatching just have to half medium slowly into
Enter, reduce the erosion of packing seal layer 9, improves sealing effect, extend the service life of drain valve.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
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 (4)
1. a kind of double containment antiscour drain valve, including valve body (1), metal gasket (2), valve seat (3), stream cover (4), inner spool
(5), flap (6), valve rod (7), valve rod bracket (8), packing seal layer (9), stud (10), nut (11), gasket (12), filler
Pressing plate (13), valve rod fixing seat (14) and handwheel (15), it is characterised in that: valve seat (3) are equipped with inside the valve body (1), it is described
It is equipped with stream cover (4) on the outside of valve seat (3), is equipped with metal gasket (2) between the valve seat (3) and stream cover (4), the valve seat
(3) upside is equipped with inner spool (5), and the upside of the inner spool (5) is equipped with flap (6), and the upside of the flap (6) is equipped with valve rod
(7), between the top inner side and valve rod (7) of the valve body (1) be equipped with packing seal layer (9), the packing seal layer (9) it is upper
Side is equipped with hold-down grid (13), and the right side of the hold-down grid (13) is equipped with stud (10), and the stud (10) is equipped with nut
(11), gasket (12) are equipped between the nut (11) and hold-down grid (13), valve rod branch is housed on the hold-down grid (13)
Frame (8), the valve rod bracket (8) is intermediate to be equipped with valve rod fixing seat (14), sets on the outside of valve rod (7) the top valve rod bracket (8)
There are handwheel (15).
2. a kind of double containment antiscour drain valve according to claim 1, it is characterised in that: the valve rod fixing seat (14)
Left side connect valve rod bracket (8), the valve rod (7) is fixed on valve rod fixing seat (14).
3. a kind of double containment antiscour drain valve according to claim 1, it is characterised in that: the stud (10), which is run through, fills out
Expect the right side of pressing plate (13) and is fixed with nut (11).
4. a kind of double containment antiscour drain valve according to claim 1, it is characterised in that: the valve seat (3) is equipped with
Several apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821914852.1U CN209431064U (en) | 2018-11-20 | 2018-11-20 | A kind of double containment antiscour drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821914852.1U CN209431064U (en) | 2018-11-20 | 2018-11-20 | A kind of double containment antiscour drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209431064U true CN209431064U (en) | 2019-09-24 |
Family
ID=67969107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821914852.1U Active CN209431064U (en) | 2018-11-20 | 2018-11-20 | A kind of double containment antiscour drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209431064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442201A (en) * | 2018-11-20 | 2019-03-08 | 南通龙源电站阀门有限公司 | A kind of double containment antiscour drain valve |
-
2018
- 2018-11-20 CN CN201821914852.1U patent/CN209431064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442201A (en) * | 2018-11-20 | 2019-03-08 | 南通龙源电站阀门有限公司 | A kind of double containment antiscour drain valve |
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