CN203516810U - Ceramic plug valve - Google Patents
Ceramic plug valve Download PDFInfo
- Publication number
- CN203516810U CN203516810U CN201320560935.6U CN201320560935U CN203516810U CN 203516810 U CN203516810 U CN 203516810U CN 201320560935 U CN201320560935 U CN 201320560935U CN 203516810 U CN203516810 U CN 203516810U
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- Prior art keywords
- valve
- bottom case
- spool
- hole
- ceramic plug
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Abstract
The utility model relates to a ceramic plug valve. The ceramic plug valve comprises a valve element made of ceramic materials, a valve midbody made of ceramic materials and a valve body, wherein the valve element is a cylinder and provided with a first overflowing hole perpendicular to the axial direction of the valve element; the valve midbody is a cylinder, a through second overflowing hole is formed in the valve midbody along the axis, and the valve midbody is further provided with a valve element containing hole perpendicular to the axis; a valve midbody containing cavity is formed in the middle of the valve body, a valve rod hole is formed in the upper end of the valve body, and a bottom cover hole is formed in the lower end of the valve body; a bottom cover is detachably connected to the bottom cover hole; the valve element penetrates through the valve element containing hole of the valve midbody, and the valve midbody is arranged in the valve midbody containing cavity of the valve body; a valve rod penetrates through the valve rod hole and is connected with the valve element. The abrasion resistance and the corrosion resistance of the ceramic plug valve are greatly improved. Besides, the valve rod does not make contact with conveying mediums, and thus the service life of the valve rod and the service life of the valve are prolonged.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of ceramic plug valve door, and this valve can be applicable to the industry-by-industries such as power plant desulfurization, eco-friendly power source, Ferrous Metallurgy, petrochemical industry, mine smelting, Coal Chemical Industry, polysilicon.
Background technique
In some complexity, severe even extreme environment and occasion, traditional metal valve cannot be broken through the limit on its material, and it is exactly inevitable choice that new ceramic material is introduced to conventional valves industry.Engineering ceramic material is as the new material of 21st century, with the high hardness that itself was possessed, high strength, high wear resistance and good antiseptic property, since World War II, just be subject to the favor of each developed country, they drop into manpower and materials unexpectedly mutually, develop engineering ceramics, be applied to the earliest military affairs and aerospace industry, as rocket jet pipe, the heat insulation backplate of space shuttle, armored vehicle etc., be applied to gradually afterwards industrial field, as ceramic engine, ceramic bearing etc., until earlier 1990s, raising along with the performance of stupalith own, just start to be applied to valve industry, and obtained admitting widely.
The stupalith that industrial field ceramic valve is used is mainly zirconium oxide TZP, its raw material are exactly the raw material of zirconium jewel, through mist projection granulating, isostatic pressing, high temperature sintering, precision machining, make " fragility " of pottery obtain greatly improving, its toughness and intensity are greatly improved, industrial being called " Ceramo-steel ".TZP pottery not only has high tenacity, high strength, high hardness, high wear resistance and high decay resistance, and also have the features such as surface finishment (Ra can reach 0.01um) that self lubricity is good, pyroconductivity is low, fabulous, be the excellent alternate material of valve metal material.
Ceramic ball valve and other full-bore valves are with its good sealing, break-make, anti-blocking performance, and stream is simple, without hindrance adjusting, Kv value is large, " self-cleaning " performance is good, open and close simple and fast, overcome the features such as pressure reduction ability is strong, in the application area of the industries such as petrochemical industry, mine metallurgy, the power station energy, medical papermaking, expand rapidly.As shown in Figure 7, the generalized section of a kind of ceramic ball valve of prior art.It comprises valve body 02, spool 01 and valve rod 03.But it still has certain structural imperfection---valve rod 03 still must contact with fed sheet of a media 04, and valve rod 03 must adopt expensive Rare Metals Materials, has virtually increased the user cost of ceramic ball valve; Ball valve medium when closing can solidify fouling in valve cavity inner accumulated, and while causing pipeline long term stop to restart, ceramic ball valve is opened the damage that difficulty even causes unrepairable.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of ceramic plug valve door.
The technological scheme that the utility model solves the problems of the technologies described above is as follows:
A ceramic plug valve door, it comprises: the spool 1 of ceramic material, described spool 1 is cylindrical body, is provided with poppet shaft to the first vertical flowing hole 101; The bottom case 2 of ceramic material, described bottom case 2 is cylindrical body, bottom case 2 inside have the second flowing hole 203 of perforation along axis, bottom case 2 also has the spool receiving bore 201 vertical with axis, on the bottom case wall around formation spool receiving bore (201), be provided with two the first grooves (204), each of the upper and lower of described bottom case wall, for holding seal ring; Valve body 3, described valve body 3 middle parts have bottom case receiving cavity 301, and the upper end of valve body 3 has valve rod hole 302, and valve body 3 lower ends have bottom hole 303; The dismountable described bottom hole 303 that is connected to of bottom 4; Described spool 1 is located in the spool receiving bore 201 of bottom case 2, and described bottom case 2 is arranged in the bottom case receiving cavity 301 of valve body 3; Valve rod 12 is connected with described spool 1 through valve rod hole 302.
The beneficial effects of the utility model are:
1, spool adopts zero draft design, and while guaranteeing that ceramic valve core rotates in ceramic bottom case, torque is steady, because zero draft no axial pressure, torque just can not increase and then cause spool to rotate, the problem that valve cannot open and close.By comparison, the design with tapering is for the spool to stopcock applies an axial force in the market, and it is pressed on middle body closely, guarantees that sealing is reliable, can reduce machining accuracy and processing cost.But during valve closing, medium is jack-up spool under large working condition pressure, spool and middle body are departed from, tiny granule medium enters in the gap between the two, destroys sealing pair, causes leakage; Valve torque is very large.
2, ceramic plug valve door inside has consisted of the fluid passage of a sealing seal ring and ceramic part, and flowing medium cannot leak outside, and has greatly improved wear resistance and the corrosion resistance of valve.
3, compare with the ceramic ball valve existing in the market, valve rod not with the medium contact of carrying, the working life of having improved valve rod (valve); When ceramic plug valve door is closed, valve core inside does not have additional space, and while having solved valve closing, particle or slurry medium are gathered the problem of solidifying fouling, has overcome the destruction to spool when pipeline long term stop opens again.
4, in pottery, body interference heat is assigned in valve body, has applied certain pretightening force arround being subject to, and has greatly improved the intensity of body in pottery.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, ceramic plug valve door also comprises flange liner 11 and flange 10, and bottom case two ends are tightly connected with flange liner 11 respectively, and fixing by flange 10.Described bottom case two ends is the step-like structure of " protruding " font, seal ring is set in respectively bottom case two ends, one end of flange liner 11 is the step-like structure of " recessed " font, and is provided with at the end face of flange liner 11 ring-type the second groove 111 that holds seal ring; Flange liner 11 buckles into one end of bottom case, and flange 10 is inserted in flange liner 11 and is fixedly connected with valve body 3.
Adopt the beneficial effect of above-mentioned further scheme to be, valve body is symplex structure, without flowing to restriction, can two-wayly use.
Further, described valve rod 12 is connected with spool 1 by lining 9 through valve rod hole 302, and described lining 9 is fixedly connected with described spool 1, and described valve rod 12 inserts described lining 9.Preferably, the cross section of described lining 9 is rectangle or oblateness, and described oblateness is preferably the shape of standard runway.
Adopt the beneficial effect of above-mentioned further scheme to be, between valve rod and spool, increase protecting jacket, when valve rod rotary work, buffering torsion, increases the resistance to reliability of turning round of spool.
Further, ceramic plug valve door also comprises Flow-rate adjustment part, and described Flow-rate adjustment part comprises the first leaf spring 7, the second leaf spring 7 and adjusting screw rod 6; Described the first leaf spring 7 is positioned at the upper end of described spool 1, and described the second leaf spring 7 is positioned at the lower end of described spool 1, and described adjusting screw rod 6 is adjustable to be connected on described bottom 4, and one end of adjusting screw rod (6) contacts with spool 1.
Adopt the beneficial effect of above-mentioned further scheme to be, can the accurate rotation of controlling spool by rotary valve rod, controlled circulation area and then reached the object of throttling.And by adjusting the adjusting screw rod of spool bottom, can change the peak rate of flow COEFFICIENT K vs of valve.
Accompanying drawing explanation
Fig. 1 is the overall schematic of a kind of embodiment's ceramic plug valve of the utility model door;
Fig. 2 is the explosive view of Fig. 1;
Fig. 3 is the generalized section of a kind of embodiment's ceramic plug valve of the utility model door;
Fig. 4 is spool and the lining schematic diagram of a kind of embodiment's ceramic plug valve of the utility model door;
Fig. 5 is the bottom case schematic diagram of a kind of embodiment's ceramic plug valve of the utility model door;
Fig. 6 is the valve body schematic diagram of a kind of embodiment's ceramic plug valve of the utility model door;
Fig. 7 is the generalized section of a kind of ceramic ball valve of prior art.
In accompanying drawing, the list of parts of each label representative is as follows:
1, spool, the 101, first flowing hole, 102, lining attachment hole, 2, bottom case, 201, spool receiving bore, 202, the step-like structure of bottom case termination " protruding " font, 203, the second flowing hole, the 204, first groove, 3, valve body, 301, bottom case receiving cavity, 302, valve rod hole, 303, bottom hole, the 304, the 3rd groove, 4, bottom, 5, nut, 6, adjusting screw rod, the 7, first leaf spring, the second leaf spring, 8, seal ring, 9, lining, 10, flange, 11, flange liner, 111, the second groove, 12, valve rod.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Fig. 1-6, be a kind of embodiment's ceramic plug valve door, it comprises: the spool 1 of ceramic material, spool 1 is cylindrical body, is provided with poppet shaft to the first vertical flowing hole 101; The first flowing hole 101 is circular in the present embodiment; it also can be according to the actual requirement of curstomer's site operating mode; adjust---or round rectangle or V fan-shaped etc., to meet the demand of curstomer's site operating mode to flow, all should be included in protection scope of the present invention.
The bottom case 2 of ceramic material, bottom case 2 is cylindrical body, bottom case 2 inside have the second flowing hole 203 of perforation along axis, bottom case 2 also has the spool receiving bore 201 vertical with axis, on the bottom case wall around formation spool receiving bore 201, be provided with for holding two the first grooves 204 of seal ring each of the upper and lower of bottom case wall; Valve body 3, valve body 3 middle parts have bottom case receiving cavity 301, and bottom case receiving cavity 301 is preferably cylindrical-shaped structure, and itself and bottom case shape are suitable; The upper end of valve body 3 has valve rod hole 302, and valve body 3 lower ends have bottom hole 303; Bottom 4 is by the dismountable bottom hole 303 that is connected to of screw thread, and bottom 3 is outside thread, and bottom hole 303 is internal thread, and the two is threaded; Spool 1 is located in the spool receiving bore 201 of bottom case 2, and bottom case 2 is arranged in the bottom case receiving cavity 301 of valve body 3; Valve rod 12 is connected with spool 1 through valve rod hole 302.
On the basis of technique scheme, the utility model can also be done following improvement.Take and realize valve body as symplex structure, without flowing to restriction, can two-wayly use.Ceramic plug valve door also comprises flange liner 11 and flange 10, and bottom case two ends are tightly connected by flange 10 with flange liner 11 respectively.Bottom case two ends is the step-like structure 202 of " protruding " font, seal ring is set in respectively bottom case two ends, one end of flange liner 11 is the step-like structure of " recessed " font, and is provided with at flange liner 11 end faces ring-type the second groove 111 that holds seal ring; Flange liner 11 buckles into one end of bottom case, and flange 10 is inserted in flange liner 11 and is fixedly connected with valve body 3.In addition on the valve body wall around formation valve rod hole 302, be provided with for holding the 3rd groove 304 of seal ring.Because the end face at valve body 3 and flange liner 11 has additionally increased by two place's protection seal rings, increased sealing effect, also for changing maintaining in time, user provides early warning and facility.
Because spool is stupalith, for when the valve rod rotary work, buffering torsion, increases that spool is resistance to turns round reliability and working life, improves as follows.Valve rod 12 is connected with spool 1 by lining 9 through valve rod hole 302, and lining 9 is fixedly connected with spool 1, and valve rod 12 inserts lining 9.In the present embodiment, the cross section of lining 9 is square.As shown in Figure 4, spool 1 upper end has lining attachment hole 102 in the present embodiment, and lining 9 is fixed in lining attachment hole 102, as bondd by super glue or mechanical interference is fastenedly connected.
In order to realize the object of the peak rate of flow COEFFICIENT K vs that changes valve, above embodiment is improved.Ceramic plug valve door also comprises Flow-rate adjustment part, and Flow-rate adjustment part comprises the first leaf spring 7, the second leaf spring 7 and adjusting screw rod 6; The first leaf spring 7 is positioned at the upper end of spool 1, and the second leaf spring 7 is positioned at the lower end of spool 1, and adjusting screw rod 6 is adjustable to be connected on bottom 4, and one end contacts with spool 1.Nut 5 is tightened on one end that adjusting screw rod stretches out bottom 4, prevents that adjusting screw rod 6 from occurring loosening.
The seal ring that the first groove, the second groove, the 3rd groove place are used in ceramic plug valve door of the present utility model can be selected according to concrete width, the depth parameter of groove, and bottom case two ends is that seal ring sheathed on the step-like structure 202 of " protruding " font can be also sealing gasket.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a ceramic plug valve door, is characterized in that, described ceramic plug valve door comprises:
The spool of ceramic material (1), described spool (1) is cylindrical body and is provided with poppet shaft to vertical the first flowing hole (101);
The bottom case of ceramic material (2), described bottom case (2) is cylindrical body, inner second flowing hole (203) along axis with perforation of bottom case (2), bottom case (2) also has the spool receiving bore (201) vertical with axis, on the bottom case inwall around formation spool receiving bore (201), be provided with two the first grooves (204), each of the upper and lower of described bottom case wall, for holding seal ring;
Valve body (3), described valve body (3) middle part has bottom case receiving cavity (301), and the upper end of valve body (3) has valve rod hole (302), and valve body (3) lower end has bottom hole (303); The dismountable described bottom hole (303) that is connected to of bottom (4);
Described spool (1) is located in the spool receiving bore (201) of bottom case (2), and described bottom case (2) is arranged in the bottom case receiving cavity (301) of valve body (3); Valve rod (12) is connected with described spool (1) through valve rod hole (302).
2. ceramic plug valve door according to claim 1, is characterized in that, also comprise flange liner (11) and flange (10), bottom case two ends are tightly connected with flange liner (11) respectively, and fixing by flange (10).
3. ceramic plug valve door according to claim 2, it is characterized in that, bottom case two ends is the step-like structure (202) of " protruding " font, seal ring is set in respectively bottom case two ends, one end of flange liner (11) is the step-like structure of " recessed " font, and is provided with at the end face of flange liner (11) ring-type the second groove (111) that holds seal ring; Flange liner (11) buckles into one end of bottom case, and flange (10) is inserted in flange liner (11) and is fixedly connected with valve body (3).
4. ceramic plug valve door according to claim 1, it is characterized in that, valve rod (12) is connected with spool (1) by lining (9) through valve rod hole (302), and described lining (9) is fixedly connected with described spool (1), and described valve rod (12) inserts described lining (9).
5. ceramic plug valve door according to claim 4, is characterized in that, the cross section of described lining (9) is rectangle or oblateness.
6. ceramic plug valve door according to claim 1, is characterized in that, also comprise Flow-rate adjustment part, described Flow-rate adjustment part comprises the first leaf spring (7), the second leaf spring (7) and adjusting screw rod (6); Described the first leaf spring (7) is positioned at the upper end of described spool (1), described the second leaf spring (7) is positioned at the lower end of described spool (1), described adjusting screw rod (6) is adjustable is connected to described bottom (4) above, and one end of adjusting screw rod (6) contacts with spool (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560935.6U CN203516810U (en) | 2013-09-10 | 2013-09-10 | Ceramic plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560935.6U CN203516810U (en) | 2013-09-10 | 2013-09-10 | Ceramic plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516810U true CN203516810U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560935.6U Expired - Fee Related CN203516810U (en) | 2013-09-10 | 2013-09-10 | Ceramic plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276218A (en) * | 2015-10-27 | 2016-01-27 | 步志俊 | Ceramic plug valve |
| CN105952925A (en) * | 2016-05-13 | 2016-09-21 | 东莞市煜田新材料有限公司 | Ceramic rotating valve |
-
2013
- 2013-09-10 CN CN201320560935.6U patent/CN203516810U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276218A (en) * | 2015-10-27 | 2016-01-27 | 步志俊 | Ceramic plug valve |
| CN105276218B (en) * | 2015-10-27 | 2017-07-28 | 步志俊 | A kind of ceramic plug valve |
| CN105952925A (en) * | 2016-05-13 | 2016-09-21 | 东莞市煜田新材料有限公司 | Ceramic rotating valve |
| CN105952925B (en) * | 2016-05-13 | 2018-09-11 | 东莞市煜田新材料有限公司 | Ceramic rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20150910 |
|
| EXPY | Termination of patent right or utility model |