CN2472013Y - Regulating valve - Google Patents
Regulating valve Download PDFInfo
- Publication number
- CN2472013Y CN2472013Y CN 01234810 CN01234810U CN2472013Y CN 2472013 Y CN2472013 Y CN 2472013Y CN 01234810 CN01234810 CN 01234810 CN 01234810 U CN01234810 U CN 01234810U CN 2472013 Y CN2472013 Y CN 2472013Y
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- China
- Prior art keywords
- valve
- production
- valve body
- sleeve
- 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 - Fee Related
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Abstract
The utility model relates to a regulating valve for the urea production of small and medium-sized nitrogen fertilizer plants, which comprises a valve body, a stuffing bush, a valve seat and a valve seat bottom cover which are connected with the valve body. A valve sleeve is arranged inside the valve body; an integral-type valve core is arranged in the valve sleeve; an axial circumfluence hole and a horizontal through hole groove are arranged at the upper end of the valve sleeve; a supporting point is arranged at the position nearby a valve head at the lower end of the inner side of the valve sleeve. Since the regulating valve adopts the integral-type valve core to ensure the concentric operation of the valve core and the valve sleeve, the utility model has the advantages that the service life is long, the potential safety hazard in the production can be eliminated, thereby the production is safe and stable and efficient, and the production costs are reduced greatly.
Description
The utility model relates to the current limliting reduction regulation valve that a kind of industrial production is used.
In urea production process, modulating valve is in throat thoroughfare, is decomposed, evaporates after the modulating valve step-down by the high pressure urine flow that urea synthesizer comes out.Since the pressure reduction height that modulating valve is imported and exported, the temperature height, the urine erosion corrosion is big, and operating conditions is very harsh, and maintenance is difficulty very.At present the modulating valve that uses generally adopts the split spool of valve rod and valve head socket joint locating stud formula, and valve rod socket joint place is prone to the gap and latch becomes flexible, and influences the concentric operation of spool and valve pocket.And have a bias current phenomenon, and easy stuck spool and can't regulating, spool also very easily ruptures because of stuck, thereby working life is short, not only has a strong impact on safe, the stable and high yield of production, has also increased cost of production greatly.
The purpose of this utility model is to avoid above-mentioned deficiency among the background technique and a kind of employing integrated type spool is provided, and opens axial return port and cross through hole groove in the valve pocket upper end.To guarantee that valve pocket top urine refluxes freely, and eliminate near the crystalline polamer of the urine filler cover, simultaneously return pressure is introduced in the valve pocket upper chambers, to resist the suffered horizontal unbalanced force of spool, improve spool coaxality in use, reduce the eccentric wear damping.The strong point is set in the valve pocket lower end near the valve head position again, guarantees the concentric operation of spool and valve pocket, long service life, the carbamide production system parking accident that minimizing causes because of the modulating valve fault, eliminate safe hidden trouble, both reached the effect of safety and stability, high yield, the modulating valve that reduces production costs again.
The utility model is realized by following approach: valve body connects filler cover, valve seat and the valve seat bottom that filler is housed.Valve pocket is installed in valve body, the integrated type spool is installed in valve pocket.Have axial return port and cross through hole groove in the valve pocket upper end, near the valve head position strong point is set in the valve pocket inside lower end.In valve pocket and filler cover and the joint of valve body and the joint of valve seat and valve seat bottom and valve body Tetrafluoro spacer is installed respectively.
The utility model is compared background technique following advantage: guaranteed the concentric operation of spool with valve pocket, the modulating valve long service life has been eliminated the potential safety hazard in producing, even production safety, stable, efficient greatly reduces cost of production again.
The utility model is the embodiment in conjunction with the accompanying drawings be described in further detail.
Fig. 1 is modulating valve schematic representation (Figure of abstract)
As shown in Figure 1, this practical modulating valve, valve body 11 connect filler cover 1, valve seat 3 and the valve seat bottom 4 that filler 2 is housed.Valve pocket 5, suit integrated type spool 10 in valve pocket 5 are installed in valve body 11.On valve pocket 5, have axial return port 7 and cross through hole groove 8.Position at the close valve head of valve pocket 5 inside lower end is provided with the strong point 9.In the valve pocket 5 and the joint of filler cover 1 and valve body 11 Tetrafluoro spacer 6 is housed, Tetrafluoro spacer 12 is housed in the valve seat 3 and the joint of valve pocket bottom 4 and valve body 11.
Claims (2)
1, a kind of modulating valve, it comprises valve body (11), the filler cover (1), valve seat (3) and the valve seat bottom (4) that connect the interior filling material (2) of valve body (11), and be contained in valve pocket (5) in the valve body (11), it is characterized in that: suit integrated type spool (10) in valve pocket (5), have axial return port (7) and cross through hole groove (8) in the upper end of valve pocket (5), near the valve head position strong point (9) is arranged in valve pocket (5) inside lower end.
2, modulating valve according to claim 1 is characterized in that: in the valve pocket (5) and the joint of filler cover (1) and valve body (11) Tetrafluoro spacer (6) is housed, in the valve seat (3) and the joint of valve seat bottom (4) and valve body (11) Tetrafluoro spacer (12) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01234810 CN2472013Y (en) | 2001-04-04 | 2001-04-04 | Regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01234810 CN2472013Y (en) | 2001-04-04 | 2001-04-04 | Regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472013Y true CN2472013Y (en) | 2002-01-16 |
Family
ID=33648107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01234810 Expired - Fee Related CN2472013Y (en) | 2001-04-04 | 2001-04-04 | Regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472013Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606753A (en) * | 2011-12-16 | 2012-07-25 | 吴忠仪表有限责任公司 | Valve special for urea |
| CN103671943A (en) * | 2013-12-07 | 2014-03-26 | 锦州高压阀门厂 | Balanced type multistage regulating valve |
-
2001
- 2001-04-04 CN CN 01234810 patent/CN2472013Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606753A (en) * | 2011-12-16 | 2012-07-25 | 吴忠仪表有限责任公司 | Valve special for urea |
| CN103671943A (en) * | 2013-12-07 | 2014-03-26 | 锦州高压阀门厂 | Balanced type multistage regulating valve |
| CN103671943B (en) * | 2013-12-07 | 2015-10-14 | 锦州高压阀门厂 | Balance type multi-stage regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |