CN202746688U - Special heat preservation jacket safety valve for urea - Google Patents
Special heat preservation jacket safety valve for urea Download PDFInfo
- Publication number
- CN202746688U CN202746688U CN 201220320119 CN201220320119U CN202746688U CN 202746688 U CN202746688 U CN 202746688U CN 201220320119 CN201220320119 CN 201220320119 CN 201220320119 U CN201220320119 U CN 201220320119U CN 202746688 U CN202746688 U CN 202746688U
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- valve
- spring
- valve rod
- urea
- valve body
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Abstract
The utility model discloses a special heat preservation jacket safety valve for urea. The special heat preservation jacket safety valve comprises a valve body, a valve rod and a valve cover; the valve rod is arranged inside a valve cavity formed by buckling the valve body and the valve cover; the lower end of the valve rod is connected on a valve clack through a back flushing disc; the bottom of the valve clack is propped against the top of a valve seat which is simultaneously connected with the valve body; the periphery of the valve rod is sleeved with a spring; the upper end of the spring is propped against the bottom of an adjustable threaded sleeve sleeved on the valve rod through an upper spring seat; the lower end of the spring is connected on a lower spring seat; and a heat preservation jacket is arranged at the outer side of the valve body. The special heat preservation jacket safety valve has the advantages of novel design, small volume, corrosion resistance, accurate opening pressure, convenience in installation and maintenance, durability and the like. The special heat preservation jacket safety valve is a safety relief valve which is used in a urea chemical engineering, polyester, ethylene, or asphalt device and the like for heat preservation of mediums.
Description
Technical field
The utility model relates to valve, specifically urea special-purpose thermal insulation chuck safety valve.
Background technique
The safety valve of present prior art; be applied on the pipeline or pressurized container of protected system; to guarantee the Security of pipeline or pressurized container; but for chemical system; particularly need the insulation occasion for devices such as urea chemical industry and polyester, ethene, pitches; all there is certain defective in present safety valve; such as good not to the medium heat-preserving effect; steam there is not washing capacity; safety reliability is poor, is subject to the corrosion of air or medium, and it is unreliable that material is selected; power consumption is large, and the life-span is short etc.So for the chemical industry occasion, employed safety valve must completely newly be developed.
In view of this, for the problems referred to above, propose a kind of reasonable in design and effectively improve the urea special-purpose thermal insulation chuck safety valve of above-mentioned disappearance.
The model utility content
The purpose of this utility model special-purpose thermal insulation chuck safety valve that is to supply urea, this product has modern design, the advantage such as volume is little, corrosion-resistant, cracking pressure is accurate, convenient for installation and maintenance, durable.Be used for the safety relief valve that the device medium such as urea chemical industry and polyester, ethene, pitch need to be incubated.
In order to reach above-mentioned purpose, the utility model has adopted following technological scheme, and urea special-purpose thermal insulation chuck safety valve comprises valve body, valve rod, valve gap, and described valve rod is arranged on by valve body and valve gap and fastens the valve pocket inside that consists of; Described valve rod lower end is connected on the flap by Disc holder, and described flap bottom is connected to the top of the valve seat that is connected with valve body simultaneously; Described valve rod periphery cover has spring, and this spring upper end is connected to the Adjusting bolt Adjusting screw bottom that is enclosed within equally on the valve rod by upper spring seat, and this spring lower end is connected on the lower spring cup; Described valve body arranged outside has insulation jacket.
Described valve rod lower end and Disc holder all pass the guide sleeve center, and the guiding casing pressure is stuck in valve body and the valve gap place that connects, and described valve body and valve gap are bolted fixing.
Described guide sleeve lower end outer circumferential side is provided with bellows.
Described valve seat epimere arranged outside has Adjusting ring.
Described valve body wall is equipped with the steam blowing mouth.
The also cap that places the valve gap top is screwed in the Adjusting bolt Adjusting screw outside, described valve rod upper end, in the valve gap upper end bonnet is set, also cap, valve rod upper end portion and the Adjusting bolt Adjusting screw first half are all protected within it.
Described flap and valve seat all adopt the Austenitic Stainless Steel material, and both sealing surface weld deposit cemented carbide.
Compared to prior art, the utlity model has following beneficial effect:
A, this product are used for the safety relief valve that the device medium such as urea chemical industry and polyester, ethene, pitch need to be incubated.
B, design insulation jacket, different from common similar valve is that it can all be incubated at interior valve body importing and exporting flange, thereby effective to medium heat-preserving.The purge vapor mouth is set, has increased the washing capacity to steam.Disc holder is set is the Lift that the recoil that utilizes the medium a fluid stream is used for improving this valve, making it when pressure transships can the pressure release of full dose quick drain medium, thereby has guaranteed the safety reliability of valve.
C, design balance wave river in Shangdong Province tubular structure, when change back pressure pressure, can not affect the variation of its Set pressure, and bellow has played the effect that protection does not weather to the component in spring seat, spring, valve rod and the valve gap.Bonnet protected Adjusting bolt Adjusting screw and and cap be not subjected to air and dielectric corrosion.Guide sleeve is set, and auxiliary valve rod is done directed vertical motion, has guaranteed the stability of valve working.
Flap and valve seat standard material all adopt Austenitic Stainless Steel in D, the design internals, and sealing surface weld deposit Stellite cemented carbide has been guaranteed the reliability that seals.When particularly urea level uses, internals flap and valve seat can select 316L, two phase stainless steel 0Cr25Ni6Mo3CuN, 00Cr25Ni6Mo2N and super-duplex stainless steel F51, F53, F55 material to guarantee the reliability of its sealability, increase the service life, energy-saving and cost-reducing.
Description of drawings
Fig. 1 is the structural representation of the utility model urea special-purpose thermal insulation chuck safety valve;
Fig. 2 is the plan view of Fig. 1.
Among the figure: 1, valve seat; 2, insulation jacket; 3, valve body; 4, Adjusting ring; 5, steam blowing mouth; 6, flap; 7, Disc holder; 8, bellows; 9, guide sleeve; 10, lower spring cup; 11, spring; 12, valve rod; 13, valve gap; 14, Adjusting bolt Adjusting screw; 15 and cap; 16, bonnet; 17, steam inlet; 18, steam air outlet.
Embodiment
Relevant detailed description of the present utility model and technology contents cooperate description of drawings as follows, yet accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
According to illustrated in figures 1 and 2, urea special-purpose thermal insulation chuck safety valve comprises valve body 3, valve rod 12, valve gap 13, and described valve rod 12 is arranged on by valve body 3 and valve gap 13 and fastens the valve pocket inside that consists of; Described valve rod lower end is connected on the flap 6 by Disc holder 7, and described flap 6 bottoms are connected to the top of the valve seat 1 that is connected with valve body simultaneously; Described valve rod periphery cover has spring 11, and this spring upper end is connected to Adjusting bolt Adjusting screw 14 bottoms that are enclosed within equally on the valve rod by upper spring seat, and this spring lower end is connected on the lower spring cup 10; Described valve body arranged outside has insulation jacket 2.Design insulation jacket 2, different from common similar valve is that it can all be incubated at interior valve body 3 importing and exporting flange, thereby effective to medium heat-preserving.Purge vapor mouth 5 is set, has increased the washing capacity to steam.Disc holder 7 is set is the Lift that the recoil that utilizes the medium a fluid stream is used for improving this valve, making it when pressure transships can the pressure release of full dose quick drain medium, thereby has guaranteed the safety reliability of valve.
Described valve rod 12 lower ends and Disc holder 7 all pass guide sleeve 9 centers, and the guiding casing pressure is stuck in valve body and the valve gap place that connects, and described valve body and valve gap are bolted fixing.Described guide sleeve lower end outer circumferential side is provided with bellows 8.Described valve seat epimere arranged outside has Adjusting ring 4.Described valve body wall is equipped with steam blowing mouth 5.The also cap 15 that places the valve gap top is screwed in the Adjusting bolt Adjusting screw outside, described valve rod upper end, in the valve gap upper end bonnet 16 is set, also cap, valve rod upper end portion and the Adjusting bolt Adjusting screw first half are all protected within it.Design balance wave river in Shangdong Province tubular structure, when change back pressure pressure, can not affect the variation of its Set pressure, and the component in 8 pairs of spring seats 10 of bellow, spring 11, valve rod 12 and the valve gap 13 have played the effect that protection does not weather.Bonnet 16 protected Adjusting bolt Adjusting screw 14 and and cap 15 be not subjected to air and dielectric corrosion.Guide sleeve 9 is set, and auxiliary valve rod 12 is done directed vertical motion, has guaranteed the stability of valve working.
Described flap and valve seat all adopt the Austenitic Stainless Steel material, and both sealing surface weld deposit cemented carbide.Guaranteed the reliability of sealing.When particularly urea level uses, internals flap (6) and valve seat (1) can select 316L, two phase stainless steel 0Cr25Ni6Mo3CuN, 00Cr25Ni6Mo2N and super-duplex stainless steel F51, F53, F55 material to guarantee the reliability of its sealability, increase the service life, energy-saving and cost-reducing.
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (7)
1. urea special-purpose thermal insulation chuck safety valve comprises valve body, valve rod, valve gap, and described valve rod is arranged on by valve body and valve gap and fastens the valve pocket inside that consists of; It is characterized in that described valve rod lower end is connected on the flap by Disc holder, described flap bottom is connected to the top of the valve seat that is connected with valve body simultaneously; Described valve rod periphery cover has spring, and this spring upper end is connected to the Adjusting bolt Adjusting screw bottom that is enclosed within equally on the valve rod by upper spring seat, and this spring lower end is connected on the lower spring cup; Described valve body arranged outside has insulation jacket.
2. urea special-purpose thermal insulation chuck safety valve according to claim 1 is characterized in that described valve rod lower end and Disc holder all pass the guide sleeve center, and the guiding casing pressure is stuck in valve body and the valve gap place that connects, and described valve body and valve gap are bolted fixing.
3. urea special-purpose thermal insulation chuck safety valve according to claim 2 is characterized in that, described guide sleeve lower end outer circumferential side is provided with bellows.
4. urea special-purpose thermal insulation chuck safety valve according to claim 1 is characterized in that, described valve seat epimere arranged outside has Adjusting ring.
5. urea special-purpose thermal insulation chuck safety valve according to claim 1 is characterized in that described valve body wall is equipped with the steam blowing mouth.
6. urea special-purpose thermal insulation chuck safety valve according to claim 1; it is characterized in that; the also cap that places the valve gap top is screwed in the Adjusting bolt Adjusting screw outside, described valve rod upper end, in the valve gap upper end bonnet is set, also cap, valve rod upper end portion and the Adjusting bolt Adjusting screw first half are all protected within it.
7. urea special-purpose thermal insulation chuck safety valve according to claim 1 is characterized in that described flap and valve seat all adopt the Austenitic Stainless Steel material, and both sealing surface weld deposit cemented carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320119 CN202746688U (en) | 2012-07-04 | 2012-07-04 | Special heat preservation jacket safety valve for urea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320119 CN202746688U (en) | 2012-07-04 | 2012-07-04 | Special heat preservation jacket safety valve for urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746688U true CN202746688U (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320119 Expired - Fee Related CN202746688U (en) | 2012-07-04 | 2012-07-04 | Special heat preservation jacket safety valve for urea |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746688U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202170A (en) * | 2017-07-07 | 2017-09-26 | 浙江天和阀门有限公司 | A kind of processing method of spring Fluorine-lined safety valve and its flap component and flap component |
| CN112984179A (en) * | 2021-04-15 | 2021-06-18 | 上海奉洪阀门有限公司 | High-pressure corrosion-resistant safety valve |
| CN113700914A (en) * | 2021-08-16 | 2021-11-26 | 哈电集团哈尔滨电站阀门有限公司 | Spring type safety valve with novel back pressure adjusting mechanism and using method |
| CN115370765A (en) * | 2022-10-26 | 2022-11-22 | 哈电集团哈尔滨电站阀门有限公司 | Take cleaning function's fused salt relief valve |
-
2012
- 2012-07-04 CN CN 201220320119 patent/CN202746688U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202170A (en) * | 2017-07-07 | 2017-09-26 | 浙江天和阀门有限公司 | A kind of processing method of spring Fluorine-lined safety valve and its flap component and flap component |
| CN107202170B (en) * | 2017-07-07 | 2023-06-23 | 浙江天和阀门有限公司 | Processing method of valve clack assembly of spring type fluorine-lined safety valve |
| CN112984179A (en) * | 2021-04-15 | 2021-06-18 | 上海奉洪阀门有限公司 | High-pressure corrosion-resistant safety valve |
| CN113700914A (en) * | 2021-08-16 | 2021-11-26 | 哈电集团哈尔滨电站阀门有限公司 | Spring type safety valve with novel back pressure adjusting mechanism and using method |
| CN113700914B (en) * | 2021-08-16 | 2022-04-12 | 哈电集团哈尔滨电站阀门有限公司 | Spring type safety valve with novel back pressure adjusting mechanism and using method |
| CN115370765A (en) * | 2022-10-26 | 2022-11-22 | 哈电集团哈尔滨电站阀门有限公司 | Take cleaning function's fused salt relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 Zhejiang province Yongjia Dong'ou street and village Patentee after: Henghua Valve Co. Ltd. Address before: The eastern Yongjia County of Wenzhou City, Zhejiang province 325000 streets and village Patentee before: Zhejiang Heng Hua valve Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20190704 |