CN102352924B - Diaphragm valve - Google Patents
Diaphragm valve Download PDFInfo
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- CN102352924B CN102352924B CN201110341565.2A CN201110341565A CN102352924B CN 102352924 B CN102352924 B CN 102352924B CN 201110341565 A CN201110341565 A CN 201110341565A CN 102352924 B CN102352924 B CN 102352924B
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Abstract
The invention provides a diaphragm valve. The diaphragm valve comprises a valve body, a valve cover, a valve base, a valve core mechanism and a diaphragm, wherein the wall of the valve body is provided with a material inlet, and the bottom of the valve body is provided with a first open end; the wall of the valve cover is provided with an air supply interface, the top of the valve cover is provided with a second open end, a valve cap is spirally connected with the second open end, the valve cover covers the valve body, and a cavity is formed between the valve cover and the valve body; the valve base is arranged on the first open end of the valve body; one end of the valve core mechanism stretches out of the second open end of the valve cover, and the other end of the valve core mechanism is slidably arranged on the valve base; and the diaphragm is arranged in the cavity, is connected with the valve core mechanism in a driving manner, and is used for dividing the cavity into an upper air supply chamber and a lower material chamber, the air supply chamber is communicated with the air supply interface, and the material chamber is communicated with the material inlet. The diaphragm valve provided by the invention has the advantages that the valve core mechanism is located reliably, the normal working of the diaphragm valve is guaranteed, thereby being beneficial to smooth discharge after the material enters the diaphragm valve; and the volume of the diaphragm valve is decreased, and the structure is more compact.
Description
Technical field
The present invention relates to valve technology field, in particular to a kind of membrane valve.
Background technique
In membrane valve, there is barrier film, lower body inner chamber and upper valve cap inner chamber are separated and be divided into two Room, the part such as valve pocket, Sealing that makes to be positioned at barrier film top not with medium contact, avoid the corrosion of medium to parts, and can not produce medium and leak outside, be commonly used to carry the valve of poisonous and harmful medium, but owing to being subject to the restriction membrane valves such as diaphragm material, it is relatively not high that membrane valve is applicable to temperature, the lower occasion of solid content in medium.
Application number is that 91107124.5 application for a patent for invention discloses a kind of manual membrane valve, and the disclosed membrane valve parts of this application for a patent for invention are more, volume is also larger, and the location between each parts is also reliable not.
Summary of the invention
The present invention aims to provide between a kind of each parts and locates reliably, the membrane valve of compact structure.
To achieve these goals, the invention provides a kind of membrane valve, comprising: valve body, Qi Bishang is provided with material inlet, and bottom has the first open end; Valve gap, Qi Bishang is provided with gas source interface, and its top has the second open end, on this second open end, is bolted with bonnet, and valve gap lid is located on valve body, and forms cavity between valve body; Valve seat, is arranged on the first open end of valve body; Spool mechanism, stretch out from the second open end of valve gap its one end, and the other end is slidably disposed on valve seat; And diaphragm, be arranged in cavity, drive and be connected with spool mechanism, cavity is divided into the source of the gas chamber on top and the supplies room of bottom by diaphragm, and source of the gas chamber is communicated with gas source interface, and supplies room is communicated with material inlet.
Further, spool mechanism comprises: valve pocket, second open end of stretching out valve gap; Taper sheath, is screwed onto in valve pocket, and stretches out the top of valve pocket; Valve rod, is arranged in taper sheath with a gap, and the top of taper sheath is stretched out on its top, and fixes by nut, and its bottom is provided with center mounting hole; And spool, its one end is fixedly installed in the center mounting hole of valve rod, and the other end is slidably disposed in valve seat.
Further, the outer periphery sandwiched of diaphragm is fixed between the corresponding annular junction plane of valve gap and valve body.
Further, in the outer rim of taper sheath sidewall, be provided with platform, diaphragm is sleeved on taper sheath, and the inner circumference edge sandwiched of diaphragm is fixed between the bottom surface and platform of valve pocket.
Further, between the outer periphery of diaphragm and annular junction plane, be provided with barrier film pad.
Further, the middle part of diaphragm is provided with suit hole, on diaphragm, is symmetrically arranged with multi-ring annular projection about the central shaft in suit hole.
Further, the height of multi-ring annular projection is diaphragm thickness 10 to 50 times.
Further, this membrane valve also comprises joint, and the two ends of this joint are provided with outside thread, and the first open end of its top and valve body bottom is spirally connected, and the end plane-plane contact of the upper surface of nipple tip and valve seat.
Further, between the upper surface of nipple tip and valve seat bottom surface, be provided with sealing gasket.
According to membrane valve of the present invention, in the cavity of valve body and valve gap formation, spool mechanism is set, one end of spool mechanism is located by the second open end of valve gap, the other end is located by valve seat, make spool mechanism obtain reliable location, thereby ensure the normal work of membrane valve, and by gas source interface is set on valve gap, make the amount of deformation of diaphragm can be controlled, being conducive to material discharges swimmingly and can in membrane valve, not pile up entering after membrane valve, the volume of membrane valve is reduced, and structure is compacter.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of membrane valve of the present invention; And
Fig. 2 is the structural representation of diaphragm.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
According to embodiments of the invention, a kind of membrane valve is provided, as shown in Figure 1, comprising: valve body 10, on its sidewall, be provided with the material inlet 11 that runs through this valve body 10, the bottom of valve body 10 has the first open end; Valve gap 20, is provided with the gas source interface 21 that runs through this valve gap 20 on its sidewall, the top of valve gap 20 has the second open end, on this second open end, is bolted with bonnet 23, and valve gap 20 lids are located on valve body 10, and form cavity 30 between valve body 10; Valve seat 40, is arranged on the first open end of valve body 10; Spool mechanism 50, stretch out from the second open end of valve gap 23 its one end, and the other end is slidably disposed on valve seat 40; And diaphragm 60, be arranged in cavity 30, drive and be connected with spool mechanism 50, diaphragm 60 is divided into cavity 30 supplies room 33 of source of the gas chamber 31 and the bottom on top, and source of the gas chamber 31 is communicated with gas source interface 21, and supplies room 33 is communicated with material inlet 11.
According to membrane valve of the present invention, the interior spool mechanism 50 that arranges of cavity 30 forming at valve body 10 and valve gap 20, one end of spool mechanism 50 is located by the second open end of valve gap 20, the other end is located by valve seat 40, make spool mechanism 50 obtain reliable location, thereby ensure the normal work of membrane valve, and by gas source interface 21 is set on valve gap 20, make the amount of deformation of diaphragm 60 can be controlled, being conducive to material discharges swimmingly and can in membrane valve, not pile up entering after membrane valve, the volume of membrane valve is reduced, and structure is compacter.
As shown in Figure 1, spool mechanism 50 specifically comprises: the valve pocket 51 that stretches out the second open end of valve gap 23; Be screwed onto in valve pocket 51 and stretch out the taper sheath 53 on valve pocket 51 tops; Valve rod 55 is set with a gap in taper sheath 53, and the top of taper sheath 53 is stretched out on the top of this valve rod 55, and fixing by nut 57, and the bottom of valve rod 55 is provided with center mounting hole; And spool 59, its one end is fixedly installed in the center mounting hole of valve rod 55, and the other end is slidably disposed in valve seat 40.
Preferably, the material of spool 59 can adopt high hardness alloy, or uses high-hardness to spray, and improves the intensity of spool 59, and ensures that spool 59 can resistance toly contain the wearing and tearing easily of washing away not of solid material under higher temperature; Valve rod 55 inserts in taper sheath 53, and taper sheath 53 is stretched out on the top of valve rod 55, valve rod 55 is connected with taper sheath 53 by screw thread, further valve rod 55 is located and sealed, the part that valve rod 55 stretches out taper sheath 53 compresses location by inner nut and pad, the inner space that sealed valve stem 55 and taper sheath 53 form, prevents dielectric chamber and source of the gas chamber string pressure; The diameter that the bottom of valve rod 55 is provided with the part of center mounting hole is greater than top, between bottom and taper sheath 53 inwalls, has 0.05 to 0.3mm gap, thereby forms the mode of location, two ends, and valve rod 55 and spool 59 are positioned and led.Valve pocket 51 stretches out between the part of the second open end and the second open end and has 0.05 to 0.4mm gap, for taper sheath 53, spool 59, valve rod 55 and diaphragm 60 centralized positionings, prevent that larger radial displacement from appearring in spool 59, valve rod 55 and diaphragm 60, restriction spool 59 can not draw larger solid particle in diaphragm 60 pressurized inequalities or material and causes radial displacement, ensures spool 59 and cooperation valve seat 40.
In Fig. 1, valve seat 40 is pressed on by joint 80 in the first open end of valve body 10, between the upper surface on joint 80 tops and the bottom surface of valve seat 40, is provided with sealing gasket 90 equally.In addition, in order to strengthen the wear-resisting property of valve seat 40, the medium that guarantee valve seat 40 at high temperature can not be contained solid particle washes away damage, and the part that valve seat 40 is contacted with spool 59 can spraying abrasion-proof hardened material.
From Fig. 1, it can also be seen that, valve body 10 and valve gap 20 are in the time of assembling, between valve gap 20 and valve body 10, there is corresponding annular junction plane, the outer periphery sandwiched of diaphragm 60 is fixed between the corresponding annular junction plane of valve gap 20 and valve body 10, and be provided with barrier film pad 70 between the two ends of diaphragm 60 and annular junction plane, this barrier film pad 70 is arranged on valve body 10 and valve gap 20 by screw, and such setting has been played the space that prevents diaphragm 60 both sides and mutually gone here and there the effect of pressing.In addition, in the outer rim of taper sheath 53 sidewalls, be provided with platform, diaphragm 60 is sleeved on taper sheath 53, after valve pocket 51 and taper sheath 53 are spirally connected, diaphragm 60 is fixed between the bottom surface and platform of valve pocket 51.
The concrete structure of diaphragm 60 can be as seen from Figure 2, be provided with suit hole 61 at the middle part of diaphragm 60, on diaphragm 60, be symmetrically arranged with multi-ring annular projection 63 about the central shaft in suit hole 61, bear the pressure from cavity 30 bottoms, the height of multi-ring annular projection 63 can be set to 10 to 50 times of diaphragm 60 thickness, projection 63 is higher, just has larger lifting surface area, preferably can adopt 10 times, 25 times and 50 times.
The cavity 30 of the membrane valve of the embodiment of the present invention is divided into upper and lower two-part by diaphragm 60, the lower part that material enters cavity 30 through material inlet 11 in the time of work, diaphragm starts upwards distortion under the effect of pressure, drive spool mechanism 50 to move up, material is discharged through joint 80 from the first open end of valve body 10 gradually, carry out the pressure at Real-Time Monitoring joint 80 places by pressure transducer being set on the discharging path at joint 80, and by this pressure feedback to gas source control system, regulated the tolerance of dividing injection to cavity 30 tops according to the pressure data obtaining by gas source control system, thereby regulate the amount of deformation of diaphragm 60, and the amount of deformation that finally makes diaphragm 60 remains on a stable state, discharge from membrane valve swimmingly to guarantee material.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
In an embodiment of the present invention, the interior spool mechanism 50 that arranges of cavity 30 forming at valve body 10 and valve gap 20, one end of spool mechanism 50 is located by the second open end of valve gap 20, the other end is located by valve seat 40, make spool mechanism 50 obtain reliable location, thereby ensure the normal work of membrane valve, and by gas source interface 21 is set on valve gap 20, make the amount of deformation of diaphragm 60 can be controlled, being conducive to material discharges swimmingly and can in membrane valve, not pile up entering after membrane valve, the volume of membrane valve is reduced, and structure is compacter.
And, in an embodiment of the present invention, valve pocket 51, taper sheath 53, valve rod 55 and spool 59 are sheathed successively, and coordinate with the second open end and valve seat 40, guaranteeing that location also prevents that larger radial displacement from appearring in spool 59, valve rod 55 and diaphragm 60 reliably simultaneously, restriction spool 59 can not draw larger solid particle in diaphragm 60 pressurized inequalities or material and causes radial displacement, ensures spool 59 and cooperation valve seat 40.
In addition, in an embodiment of the present invention, by barrier film pad 70 being set and sealing gasket 90 has played reliable sealing effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a membrane valve, is characterized in that, comprising:
Valve body (10), Qi Bishang is provided with material inlet (11), and bottom has the first open end for discharging material;
Valve gap (20), on its wall, be provided with gas source interface (21), its top has the second open end, is bolted with bonnet (23) on described the second open end, it is upper that described valve gap (20) lid is located at described valve body (10), and between described valve body (10), form cavity (30);
Valve seat (40), is arranged on the first open end of described valve body (10);
Spool mechanism (50), stretch out from the second open end of described valve gap (20) its one end, and the other end is slidably disposed on described valve seat (40) above and is located by described valve seat (40); And
Diaphragm (60), be arranged in described cavity (30), drive and be connected with described spool mechanism (50), described diaphragm (60) is divided into described cavity (30) supplies room (33) of source of the gas chamber (31) and the bottom on top, described source of the gas chamber (31) is communicated with described gas source interface (21), and described supplies room (33) is communicated with described material inlet (11);
The middle part of described diaphragm (60) is provided with suit hole (61), and described diaphragm (60) is upper is symmetrically arranged with multi-ring annular projection (63) about the central shaft in described suit hole (61), bears the pressure from cavity (30) bottom.
2. membrane valve according to claim 1, is characterized in that, described spool mechanism (50) comprising:
Valve pocket (51), second open end of stretching out described valve gap (20);
Taper sheath (53), is screwed onto in described valve pocket (51), and stretches out the top of described valve pocket (51);
Valve rod (55), is arranged in described taper sheath (53) with a gap, and the top of described taper sheath (53) is stretched out on its top, and fixing by nut (57), and its bottom is provided with center mounting hole; And
Spool (59), its one end is fixedly installed in the center mounting hole of described valve rod (55), and the other end is slidably disposed in described valve seat (40).
3. membrane valve according to claim 2, is characterized in that, the outer periphery sandwiched of described diaphragm (60) is fixed between described valve gap (20) and the corresponding annular junction plane of described valve body (10).
4. membrane valve according to claim 3, it is characterized in that, in the outer rim of described taper sheath (53) sidewall, be provided with platform, it is upper that described diaphragm (60) is sleeved on described taper sheath (53), and the inner circumference edge sandwiched of described diaphragm (60) is fixed between the bottom surface and described platform of described valve pocket (51).
5. membrane valve according to claim 3, is characterized in that, between the outer periphery of described diaphragm (60) and described annular junction plane, is provided with barrier film pad (70).
6. according to the membrane valve described in any one in claim 1 to 5, it is characterized in that, the height of described multi-ring annular projection (63) is 10 to 50 times of described diaphragm (60) thickness.
7. according to the membrane valve described in any one in claim 1 to 5, it is characterized in that, also comprise joint (80), the two ends of described joint (80) are provided with outside thread, the first open end of its top and described valve body (10) bottom is spirally connected, and the upper surface on described joint (80) top and the end plane-plane contact of described valve seat (40).
8. membrane valve according to claim 7, is characterized in that, between the upper surface on described joint (80) top and described valve seat bottom surface, is provided with sealing gasket (90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341565.2A CN102352924B (en) | 2011-11-02 | 2011-11-02 | Diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341565.2A CN102352924B (en) | 2011-11-02 | 2011-11-02 | Diaphragm valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102352924A CN102352924A (en) | 2012-02-15 |
| CN102352924B true CN102352924B (en) | 2014-07-02 |
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ID=45576550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110341565.2A Active CN102352924B (en) | 2011-11-02 | 2011-11-02 | Diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102352924B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020243920A1 (en) * | 2019-06-05 | 2020-12-10 | 宁津美华工业有限公司 | Main valve of y-shaped deluge valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5112027A (en) * | 1989-06-21 | 1992-05-12 | Benkan Corporation | Metal diaphragm valve |
| CN2217151Y (en) * | 1994-12-17 | 1996-01-10 | 任金生 | Diaphragm valve of man power operating or pneumatic operating type |
| CN201539600U (en) * | 2009-11-23 | 2010-08-04 | 上海富地阀门有限公司 | Diaphragm valve for folding diaphragm |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11325273A (en) * | 1998-05-13 | 1999-11-26 | Hitachi Metals Ltd | Metal diaphragm valve |
| JP2005155895A (en) * | 2003-11-07 | 2005-06-16 | Ckd Corp | Diaphragm valve |
| CN101629646A (en) * | 2008-07-14 | 2010-01-20 | 温州市工业科学研究院 | Antibiotic valve |
| CN202280845U (en) * | 2011-11-02 | 2012-06-20 | 神华集团有限责任公司 | Diaphragm valve |
-
2011
- 2011-11-02 CN CN201110341565.2A patent/CN102352924B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5112027A (en) * | 1989-06-21 | 1992-05-12 | Benkan Corporation | Metal diaphragm valve |
| CN2217151Y (en) * | 1994-12-17 | 1996-01-10 | 任金生 | Diaphragm valve of man power operating or pneumatic operating type |
| CN201539600U (en) * | 2009-11-23 | 2010-08-04 | 上海富地阀门有限公司 | Diaphragm valve for folding diaphragm |
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| Publication number | Publication date |
|---|---|
| CN102352924A (en) | 2012-02-15 |
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