CN102606753A - Valve special for urea - Google Patents
Valve special for urea Download PDFInfo
- Publication number
- CN102606753A CN102606753A CN2011104240015A CN201110424001A CN102606753A CN 102606753 A CN102606753 A CN 102606753A CN 2011104240015 A CN2011104240015 A CN 2011104240015A CN 201110424001 A CN201110424001 A CN 201110424001A CN 102606753 A CN102606753 A CN 102606753A
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- Prior art keywords
- valve
- urea
- flange
- special
- prolonged
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- 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.)
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Abstract
The invention relates to a valve special for urea, which comprises a flange and is characterized in that a lens pad (1) for sealing is mounted at a seal position of one side of the flange. According to trials, when the valve special for urea is used for a urea synthesis tower system of a urea device, the operational stability of the valve is high, leakage probability is evidently lowered, replacement cycle of spare parts is evidently prolonged, and the service life of the valve is three times of that of currently used imported products. The valve is operated under the harsh operating conditions of high temperature, high pressure and strong corrosion media, the service life of the valve can be greatly improved by means of the structural design of the valve special for urea, and accordingly virtuous operation of devices can be guaranteed. The valve special for urea mainly solves the problem of easiness in leakage of the flange in the valve special for urea, the replacement cycle of the spare parts of the valve is prolonged, and thereby service performance of products can be greatly improved, and the service life of products can be prolonged.
Description
Technical field
The present invention relates to a kind of urea special valve.
Background technique
Flange all adopts the toothed pad plane sealing structure in the existing urea synthesis tower special valve; Main effect is to prevent valve body, fluid leaked outside when bonnet bearing capacity container bore pressure; This structure very universal; Effect in the mesolow valve is good, can occur a lot of problems but be used for urea with valve, mainly is the leakage that the flange place is prone to take place fluid.Press 620 tons/day in urea, 2500 yuan of/ton calculating, 250,000 tons of/year urea devices stop and caused direct economic loss to reach more than 150 ten thousand yuan in one day, and indirect loss is then higher.
Summary of the invention
The purpose of this invention is to provide a kind of urea special valve, can significantly reduce the probability that leaks outside at flange place in the use, thereby improve the working life of valve.
A kind of urea special valve comprises flange, and its specialization is, in the sealing part of said flange one side sealing is installed at least and uses German-style metal lensring.
Wherein the sealing part in the flange both sides all is equipped with German-style metal lensring.
Through probationary certificate, adopt the special valve of flange of the present invention in urea device urea synthesizer system, to use, valve is stable good, and the probability that leaks outside obviously reduces, and changes the cycle of standby redundancy and obviously extends, and the life-span is that the present imported product that uses is more than 3 times.Valve moves under the harsh operating mode of HTHP strong corrosive medium, the life-span of adopting structural design of the present invention can improve valve greatly, thereby the optimum operation of assurance device.Improvement to flange among the present invention mainly solves the easy problem of leaking of flange in the urea special valve, has prolonged the replacement cycle of valve standby redundancy simultaneously, thereby has improved the usability of product widely, has prolonged the working life of product.
Description of drawings
Accompanying drawing 1 is the special valve structural representation in the background technique of the present invention;
Accompanying drawing 2 is a special valve structural representation of the present invention.
Embodiment
As shown in Figure 2, a kind of urea special valve comprises flange, and the sealing part in the flange both sides all is equipped with sealing with German-style metal lensring 1.
For a modulating valve; At first must have good usability; The problem of leaking outside must be able to special concern, still adopts common normal temperature and pressure modulating valve structural design for flange arrangement in the urea synthesizer special valve that under harsh operating mode, uses at present, and the probability that the problem that leaks outside occurs is very high.The sealing of this structure not only is designed into the processing of toothed pad; And necessary surface finishment and the Tolerance of Degree of position that guarantees the valve body valve gap end face processing of contact up and down; In case leak outside; Maintenance except repairing the contact seal face, simultaneously must replacing have not been had the pad of decrement during valve.
Two place's flange arrangements all adopt the sealing of lens cushion about in this special valve structure of the present invention; Structural representation sees Fig. 2 for details; Belong to lens cushion linear sealing structure, guarantee sealing more easily, and the direct internals of the corresponding damage of replacing during maintenance; Need not gasket seal be provided again, reduce the storage volume of spare part.
Claims (2)
1. a urea special valve comprises flange, it is characterized in that: the sealing part in said flange one side is equipped with sealing with German-style metal lensring (1) at least.
2. a kind of urea special valve as claimed in claim 1 comprises flange, it is characterized in that: wherein the sealing part in the flange both sides all is equipped with German-style metal lensring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104240015A CN102606753A (en) | 2011-12-16 | 2011-12-16 | Valve special for urea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104240015A CN102606753A (en) | 2011-12-16 | 2011-12-16 | Valve special for urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606753A true CN102606753A (en) | 2012-07-25 |
Family
ID=46524398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104240015A Pending CN102606753A (en) | 2011-12-16 | 2011-12-16 | Valve special for urea |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606753A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3409049A (en) * | 1964-09-11 | 1968-11-05 | Alfred Racek | Throttle device for gases |
| CN2314184Y (en) * | 1997-11-28 | 1999-04-14 | 钟旭东 | One way valve with guiding cylinder and floating ball |
| CN2472013Y (en) * | 2001-04-04 | 2002-01-16 | 湖南大乘资氮集团有限公司 | Regulating valve |
| CN2654988Y (en) * | 2003-11-05 | 2004-11-10 | 明赐东 | High-pressure regulating valve body |
| CN2674213Y (en) * | 2003-11-17 | 2005-01-26 | 雷志华 | High pressure regulating valve used specially for urea |
| CN2739429Y (en) * | 2004-04-13 | 2005-11-09 | 四川锦宇化机有限公司 | High pressure regulating valve for carbon dioxide air extracting method urine process |
-
2011
- 2011-12-16 CN CN2011104240015A patent/CN102606753A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3409049A (en) * | 1964-09-11 | 1968-11-05 | Alfred Racek | Throttle device for gases |
| CN2314184Y (en) * | 1997-11-28 | 1999-04-14 | 钟旭东 | One way valve with guiding cylinder and floating ball |
| CN2472013Y (en) * | 2001-04-04 | 2002-01-16 | 湖南大乘资氮集团有限公司 | Regulating valve |
| CN2654988Y (en) * | 2003-11-05 | 2004-11-10 | 明赐东 | High-pressure regulating valve body |
| CN2674213Y (en) * | 2003-11-17 | 2005-01-26 | 雷志华 | High pressure regulating valve used specially for urea |
| CN2739429Y (en) * | 2004-04-13 | 2005-11-09 | 四川锦宇化机有限公司 | High pressure regulating valve for carbon dioxide air extracting method urine process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120725 |