CN203686226U - Emptying valve for melamine production line - Google Patents
Emptying valve for melamine production line Download PDFInfo
- Publication number
- CN203686226U CN203686226U CN201420050612.7U CN201420050612U CN203686226U CN 203686226 U CN203686226 U CN 203686226U CN 201420050612 U CN201420050612 U CN 201420050612U CN 203686226 U CN203686226 U CN 203686226U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- floating
- spool
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 14
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 238000007667 floating Methods 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 13
- 238000002425 crystallisation Methods 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract 2
- 230000008025 crystallization Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of valves, in particular to an emptying valve for a melamine production line. The emptying valve for the melamine production line comprises a valve body, a valve element, a support, a valve drive actuator, an upper valve rod and a lower valve rod, and is characterized in that a floating valve base is arranged in an inner cavity of the valve body, one end of a spring is respectively arranged at the upper end and the lower end of one side of the inner cavity of the valve body, the other end of the spring abuts against the floating valve base, the valve element is arranged in the floating valve base and is semispherical, a V-shaped groove is formed in the semispherical plane end, valve body heat preservation clamping sleeves are arranged outside the valve body, and a plurality of through holes are formed in the circumferential surface located at a medium inlet end of the valve body. Compared with the prior art, the heat preservation clamping sleeves are additionally arranged outside the valve body of the emptying valve, the valve rods are effectively prevented from being crystallized, and accordingly the valve can be opened and closed freely. The emptying valve is simple and reasonable in structure, good in anti-crystallization effect and reliable and safe in sealing performance.
Description
Technical field
The utility model relates to valve technology field, specifically a kind of discharging valve for melamine product line.
Background technique
On the valve body of the discharging valve using in petrochemical industry operating mode at present, be not add insulation jacket, therefore in the time of the production for melamine, to the medium poor effect of the easy crystallizations such as melamine, can in the process of carrying, can there is crystallization to the valve rod of discharging valve in melamine, affect stem packing sealing, thereby cause leaking, cause major accident.
Summary of the invention
The utility model, for overcoming the deficiencies in the prior art, is set up respectively insulation jacket in the outside of discharge valve body, has effectively prevented the crystalline polamer of valve rod, guarantees the performance of stem packing sealing; At valve body media entry end, place sets up porous, and connects with thermal insulation clamp mantle cavity; Spool is changed into the hemisphere spool with V-notch, and increase the support of spring, make spool in body cavity, keep quick condition, can play the effect of scraping of cutting to residue on sealing surface of seat, and make sealing surface keep bright and clean, make valve opening, close freely, simple and reasonable, crystallization-preventive respond well, sealability is reliable, safety.
For achieving the above object, design a kind of discharging valve for melamine product line, comprise that valve body, spool, support, valve drive actuator, upper valve rod, lower valve rod, it is characterized in that: body cavity is provided with floating valve seat, be respectively equipped with one end of spring at a side upper/lower terminal of body cavity, the other end butt floating valve seat of spring, is provided with spool in floating valve seat, described spool is hemisphere, and is provided with v-depression in hemispheric planar ends; The outside of described valve body is provided with valve body insulation jacket; The circumferential surface that is positioned at valve body media entry end place is provided with some through holes.
The rear end of described valve body is connected with insulation import.
The upper end of described valve body is connected with upper valve rod by taper pin, and the upper end of upper valve rod connects valve by support and drives actuator.
The lower end of described spool is provided with one end of lower valve rod, and the other end of lower valve rod is connected with valve body by screw.
The utility model compared with the existing technology, is set up respectively insulation jacket in the outside of discharge valve body, has effectively prevented the crystalline polamer of valve rod, guarantees the performance of stem packing sealing; At valve body media entry end, place sets up porous, and connects with thermal insulation clamp mantle cavity, in the time that insulation gas enters entry end, between insulation gas and medium, forms one deck barrier, has guaranteed to produce crystallization between flashboard and valve body surface of contact; Spool is changed into the hemisphere spool with V-notch, and increase the support of spring, make spool in body cavity, keep quick condition, can play the effect of scraping of cutting to residue on sealing surface of seat, and make sealing surface keep bright and clean, make valve opening, close freely, simple and reasonable, crystallization-preventive respond well, sealability is reliable, safety.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the enlarged diagram of A in Fig. 1.
Referring to Fig. 1, Fig. 2,1 is insulation import, and 2 is lower valve rod, and 3 is valve body, and 4 is valve body insulation jacket, 5 is through hole, and 6 is spool, and 7 is upper valve rod, and 8 is floating valve seat, and 9 is spring, 10 is taper pin, and 11 is support, and 12 for valve drives actuator, and 13 is screw, and 14 is v-depression.
Embodiment
With reference to the accompanying drawings the utility model is described further below.
As Fig. 1, shown in Fig. 2, a kind of discharging valve for melamine product line, comprise that valve body, spool, support, valve drive actuator, upper valve rod, lower valve rod, it is characterized in that: valve body 3 inner chambers are provided with floating valve seat 8, be respectively equipped with one end of spring 9 at a side upper/lower terminal of valve body 3 inner chambers, the other end butt floating valve seat 8 of spring 9, in floating valve seat 8, be provided with spool 6, described spool 6 is hemisphere, and is provided with v-depression 14 in hemispheric planar ends; The outside of described valve body 3 is provided with valve body insulation jacket 4; The circumferential surface that is positioned at valve body 3 end places, medium inlet is provided with some through holes 5.
The rear end of valve body 3 is connected with insulation import 1.
The upper end of valve body 3 is connected with upper valve rod 7 by taper pin 10, and the upper end of upper valve rod 7 connects valve by support 11 and drives actuator 12.
The lower end of spool 6 is provided with one end of lower valve rod 2, and the other end of lower valve rod 2 is connected with valve body 3 by screw 13.
Spool 6 is changed into the hemisphere spool with V-notch, and increase the support of spring 9 by floating valve seat 8, make spool 6 in body cavity, keep quick condition, can play the effect of scraping of cutting to residue on sealing surface of seat, and make sealing surface keep bright and clean, and under the effect of spring 9 and entrance medium thrust, valve base sealing is close on the hemisphere sealing surface of spool 6, make sealability reliable.
Valve body insulation jacket 4 is set up respectively in outside at discharge valve body 3, has effectively prevented the crystalline polamer of valve rod, guarantees the performance of stem packing sealing; At valve body, 3 end places, medium inlet set up some through holes 5, and connect with valve body insulation jacket 4 chambeies, in the time that insulation gas enters entry end, between insulation gas and medium, form one deck barrier, guarantee to produce crystallization between flashboard and valve body surface of contact, made valve opening, close freely.
Simple and reasonable, crystallization-preventive respond well, sealability is reliable, safety.
Claims (4)
1. the discharging valve for melamine product line, comprise that valve body, spool, support, valve drive actuator, upper valve rod, lower valve rod, it is characterized in that: valve body (3) inner chamber is provided with floating valve seat (8), be respectively equipped with one end of spring (9) at a side upper/lower terminal of valve body (3) inner chamber, the other end butt floating valve seat (8) of spring (9), in floating valve seat (8), be provided with spool (6), described spool (6) is hemisphere, and is provided with v-depression (14) in hemispheric planar ends; The outside of described valve body (3) is provided with valve body insulation jacket (4); The circumferential surface that is positioned at end place, valve body (3) medium inlet is provided with some through holes (5).
2. a kind of discharging valve for melamine product line according to claim 1, is characterized in that: the rear end of described valve body (3) is connected with insulation import (1).
3. a kind of discharging valve for melamine product line according to claim 1, it is characterized in that: the upper end of described valve body (3) is connected with upper valve rod (7) by taper pin (10), the upper end of upper valve rod (7) connects valve by support (11) and drives actuator (12).
4. a kind of discharging valve for melamine product line according to claim 1, is characterized in that: the lower end of described spool (6) is provided with one end of lower valve rod (2), and the other end of lower valve rod (2) is connected with valve body (3) by screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050612.7U CN203686226U (en) | 2014-01-26 | 2014-01-26 | Emptying valve for melamine production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050612.7U CN203686226U (en) | 2014-01-26 | 2014-01-26 | Emptying valve for melamine production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686226U true CN203686226U (en) | 2014-07-02 |
Family
ID=51008126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420050612.7U Expired - Lifetime CN203686226U (en) | 2014-01-26 | 2014-01-26 | Emptying valve for melamine production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151531A (en) * | 2015-04-03 | 2016-11-23 | 无锡鑫华控阀业有限公司 | Pottery baiting valve |
| CN108591524A (en) * | 2018-07-06 | 2018-09-28 | 安徽姆大陆科技发展有限公司 | A kind of adjustable hemispherical valve |
| CN110608296A (en) * | 2019-09-11 | 2019-12-24 | 昆山维萨阀门股份有限公司 | Hemispherical metal sealing fixed ball valve with jacket |
-
2014
- 2014-01-26 CN CN201420050612.7U patent/CN203686226U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151531A (en) * | 2015-04-03 | 2016-11-23 | 无锡鑫华控阀业有限公司 | Pottery baiting valve |
| CN108591524A (en) * | 2018-07-06 | 2018-09-28 | 安徽姆大陆科技发展有限公司 | A kind of adjustable hemispherical valve |
| CN110608296A (en) * | 2019-09-11 | 2019-12-24 | 昆山维萨阀门股份有限公司 | Hemispherical metal sealing fixed ball valve with jacket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203686226U (en) | Emptying valve for melamine production line | |
| CN103791108A (en) | Portable and quick-open type high-pressure stop valve | |
| CN207019834U (en) | Antifreezing joint for pressure gauge and its antifreeze detection means of fluid pressure | |
| CN203686195U (en) | Stop valve for melamine production line | |
| CN106501017B (en) | Self-locking pressure-maintaining sealing cover of deep sea heat-preserving pressure-maintaining cabin | |
| CN204553903U (en) | A kind of compressed natural gas bottle valve for cars | |
| CN105361732B (en) | Prevent by the plug of thermos of hyperbar roof fall | |
| CN201487239U (en) | right-angle valve | |
| CN203131068U (en) | High-sealing wedge gate valve | |
| CN202567770U (en) | Gravity pressure limiting valve of pressure cooker | |
| CN202371180U (en) | Ultrahigh pressure detecting stop valve | |
| CN104653925B (en) | Fluid assembly and disassembly emergency escape device | |
| CN210860044U (en) | Copper ball valve convenient to open and close | |
| CN206035560U (en) | Modified gasengine cylinder head discharge valve seat | |
| CN102563091A (en) | Ultrahigh pressure detection stop valve | |
| CN202707277U (en) | Air exhaust heating nozzle used for gas turbine air intake filter | |
| CN203432349U (en) | Heat preservation structure of pressurized sintering furnace | |
| CN110789057B (en) | Submarine optical cable splice box insulating layer mould | |
| CN203940083U (en) | Novel power-assisted cut-off device | |
| KR101610112B1 (en) | Hollow valve for intake and exhaust of engine | |
| CN204372283U (en) | A kind of clustered control valve of fluid | |
| CN204114183U (en) | A kind of direct insertion Angle Stop valves | |
| CN203627835U (en) | Corrugated pipe discharge valve with corrugated pipe protecting sleeve | |
| CN202203505U (en) | Heat-insulating type safety valve | |
| CN203868378U (en) | Supercritical cascading anti-clamping valve for CO2 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Di Inventor after: Su Zhengchu Inventor after: Su Yang Inventor after: Su Zhengchao Inventor before: Zhang Di |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161025 Address after: 201707, No. 1, No. 579, new waterway, Qingpu Industrial Park, Qingpu District, Shanghai Patentee after: SHANGHAI FEIQIU TECHNOLOGY (GROUP) CO.,LTD. Address before: 201707, No. 579, new waterway, Qingpu Industrial Development Zone, Qingpu District, Shanghai Patentee before: SHANGHAI FEIQIU VALVE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |