CN101956852A - Anti-corrosion micro flow regulation valve - Google Patents
Anti-corrosion micro flow regulation valve Download PDFInfo
- Publication number
- CN101956852A CN101956852A CN 201010501325 CN201010501325A CN101956852A CN 101956852 A CN101956852 A CN 101956852A CN 201010501325 CN201010501325 CN 201010501325 CN 201010501325 A CN201010501325 A CN 201010501325A CN 101956852 A CN101956852 A CN 101956852A
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- valve
- valve body
- seat
- filler group
- loam cake
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Abstract
The invention relates to an anti-corrosion micro flow regulation valve which comprises a valve body, a valve seat, a valve element, a valve rod, a valve inner filler group and an upper cover, wherein the valve rod is fixedly connected to the valve element; the valve element is matched with the valve seat; the valve seat is arranged in the valve body; the valve inner filler group is filled in a gap between the valve rod and the valve body; the upper cover is pressed on the valve inner filler group and fixedly connected to the valve body; and the valve rod passes through the upper cover. The valve is characterized in that the valve body is internally provided with a valve body inner lining; the valve seat is arranged in the valve body inner lining; and the valve body inner lining, the valve seat, the valve inner filler group and the valve element are all made of an anti-corrosion nonmetal material. The invention adopts a full lining structure of the anti-corrosion nonmetal material (particularly PTFE, Polytetrafluoroethylene), thereby avoiding the corrosion of media to the valve body; the valve element and the valve seat are made of the PTFE material, thereby the processing difficulty of the valve element and the valve seat is reduced, and the material cost is saved; and the valve body inner lining PTFE protrudes out of the metal valve body and can be directly connected with pipelines at two ends, without using gaskets, which is convenient and quick.
Description
Technical field
The present invention relates to be used for the modulating valve of low pressure small flow strong corrosive media, specifically a kind of corrosion protection micro-flow regulating valve.
Background technique
Along with industrial more and more polynary change, produced a lot of harsh operating modes in the process control field, strong corrosive media is exactly wherein a kind of, is example with hydrogen bromide (HBr), moist hydrogen bromide (HBr) has very strong corrosivity, and it can corrode most metals.Under this operating mode, modulating valve uses the manufacturing of alloy material usually, and for example Hastelloy (Hastelloy C) still still has only very short working life, has therefore influenced the normal life cycle of whole device, causes stopping, and causes the tremendous economic loss; Perhaps trim uses the manufacturing of special material tantalum, and tantalum is difficult to processing and cost of material height.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art part, a kind of corrosion protection micro-flow regulating valve is provided, this valve arrangement is simple, cost is low, can guarantee that device moves safely and smoothly, enhances productivity.
According to technological scheme provided by the invention, a kind of corrosion protection micro-flow regulating valve, comprise valve body, valve seat, spool, valve rod, filler group and loam cake in the valve, valve rod is fixedly connected on the spool, spool matches with valve seat, valve seat is installed in the valve body, the filler group is filled in the gap between valve rod and the valve body in the valve, loam cake is pressed on the interior filler group of valve and is fixedly connected on the valve body, valve rod passes from loam cake, feature is: be provided with the valve body liner in the described valve body, described valve seat is installed in the described valve body liner, described valve body liner, described valve seat, filler group and described spool all adopt Erosion-Resisting Non-metallic Materials to make in the described valve.
Described Erosion-Resisting Non-metallic Materials are teflon.
Be provided with Packing seat between filler group and the described loam cake in the described valve.
Described loam cake is threaded on the described valve body and by thin nut and locks.
Two end faces of described valve body liner exceed two end faces of described valve body.
The last inside of described loam cake is provided with counterbore, be provided with the sealing guiding device in the described counterbore, described sealing guiding device comprises that order links to each other and is sleeved on packing spring, Packing seat on the described valve rod, goes up filler group, Gland and hold-down grid, and described hold-down grid is fixedly connected on and covers on described.
The described material of going up the filler group is a teflon.
Compared with the prior art the present invention has the following advantages:
1, valve inner serves as a contrast Erosion-Resisting Non-metallic Materials (particularly PTFE) entirely, and medium does not contact with body cavity, has avoided the corrosion of medium to valve body, has prolonged the working life of valve, has guaranteed the reliability of device;
2, the spool valve seat uses the PTFE material, and the special material tantalum is used in cancellation, has reduced the difficulty of processing of spool valve seat, has saved cost of material;
3, valve uses the wafer type structure, has shortened the flange distance, reduces aggressive medium in the currency of valve internal, and because the outstanding metal valve body of valve body liner PTFE can directly connect the two ends pipeline, need not to use pad, and is convenient and swift.
4, filler component was other on the filler group reached in the double-deck filler group structure, valve has seal action again to spool and the existing leading role of valve rod, effectively prevents aggressive medium contact valve body and loam cake.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1.
Embodiment
Following the present invention will be further described in conjunction with the accompanying drawings:
As shown in Figure 1 and Figure 2, comprise filler group 5 in valve body 1, valve body liner 2, valve seat 3, spool 4, the valve, Packing seat 6, valve rod 7, thin nut 8, loam cake 9, packing spring 10, last filler group 11, Gland 12, hold-down grid 13, round nut 14, attachment hole 15 etc.
As shown in Figure 1 and Figure 2, the present invention is a kind of corrosion protection micro-flow regulating valve, comprises filler group 5 and loam cake 9 in valve body 1, valve seat 3, spool 4, valve rod 7, the valve.Valve body 1 adopts the wafer type structure, and valve body 1 directly is connected with piping flange by the attachment hole on two end face 15, has shortened the flange distance, reduces the currency of aggressive medium at valve internal.Spool 4 and valve rod 7 spin by internal and external threads and are integral, spool 4 and valve seat 3 match by sealing surface, valve seat 3 is installed in the valve body 1, filler group 5 is filled in the gap between valve rod 7 and the valve body in the valve, loam cake 9 is pressed on the interior filler group 5 of valve and is fixedly connected on the valve body 1, and valve rod 7 passes from loam cake 9.Improvements of the present invention are: be provided with valve body liner 2 in valve body 1, valve seat 3 is directly installed in the valve body liner 2, filler group 5 and spool 4 all adopt Erosion-Resisting Non-metallic Materials to make in valve body liner 2, valve seat 3, the valve, other parts adopt ordinary metallic material, and for example stainless steel material is made.
Erosion-Resisting Non-metallic Materials are preferably polytetrafluoroethylene (PTFE), also can adopt other corrosion-resistant engineering plastics certainly.
Two end faces of valve body liner 2 preferably exceed two end faces of valve body 1, its objective is compressibility and the sealing of utilizing PTFE, valve are connected with pipeline seal.Because the outstanding metal valve body of valve body liner PTFE can directly connect the two ends pipeline, need not to use pad, and is convenient and swift.
The last inside of loam cake 9 is provided with counterbore, is provided with the sealing guiding device in the counterbore.The sealing guiding device comprises continuous packing spring 10, Packing seat 6, last filler group 11, Gland 12 and the hold-down grid 13 that is sleeved on the valve rod 7 of order, and hold-down grid 13 is fixedly connected on the loam cake 9.The material of last filler group 11 also is a teflon.
Assembly process of the present invention is as follows: valve body liner 2 is mounted to valve body 1 inner chamber; Put into valve seat 3 from valve body 1 upper end; Spool 4 and valve rod 7 spin by internal and external threads and are integral, and insert valve seat 3 from valve body 1 upper end, and the sealing surface of spool 4 contacts with the sealing surface of valve seat 3; Filler group 5 and Packing seat 6 seal in from valve rod 7 upper ends in the valve, compress into valve body liner 2 gently, until valve seat 3 upper ends; Thin nut 8 screws in from loam cake 9 lower end screw threads, until the step place; Loam cake 9 is inserted in from valve rod 7 upper ends together with thin nut 8, loam cake 9 precession valve bodies 1 appropriate depth, and to suppress test standard by valve, medium does not leak outside and is appropriate depth; Rotation thin nut 8 is until also tight with valve body 1; Successively packing spring 10, Packing seat 6, last filler group 11, Gland 12, hold-down grid 13 are inserted in from valve rod 7 upper ends, and are installed on the loam cake 9.The outer wall of loam cake 9 is provided with outside thread, is connected with round nut 14 on the outside thread, and modulating valve is connected with actuator with valve rod 7 by round nut 14.
Working principle of the present invention:
The present invention adopts the full lining structure of Erosion-Resisting Non-metallic Materials (particularly PTFE), by the protection of 2 pairs of valve body 1 inner chambers of valve body liner, has avoided the corrosion of medium; Valve body liner 2 is given prominence to metal valve body, utilizes compressibility and the sealing of PTFE, valve is connected with pipeline seal; Spool 4, valve rod 7 adopt the PTFE material, utilize the soft seal performance of PTFE, guarantee that valve reaches the sealing of VI level; Double-deck filler group structure, filler group 5 and go up filler group 11 and respectively spool 4 and valve rod 7 existing leading roles are had seal action again in the valve effectively prevents aggressive medium contact valve body 1 and loam cake 9.
Claims (8)
1. corrosion protection micro-flow regulating valve, comprise valve body (1), valve seat (3), spool (4), valve rod (7), filler group (5) and loam cake (9) in the valve, valve rod (7) is fixedly connected on the spool (4), spool (4) matches with valve seat (3), valve seat (3) is installed in the valve body (1), filler group (5) is filled in the gap between valve rod (7) and the valve body in the valve, loam cake (9) is pressed in the interior filler group (5) of valve and goes up and be fixedly connected on the valve body (1), valve rod (7) passes from loam cake (9), it is characterized in that: be provided with valve body liner (2) in the described valve body (1), described valve seat (3) is installed in the described valve body liner (2), described valve body liner (2), described valve seat (3), filler group (5) and spool (4) all adopt Erosion-Resisting Non-metallic Materials to make in the valve.
2. corrosion protection micro-flow regulating valve as claimed in claim 1 is characterized in that described Erosion-Resisting Non-metallic Materials are teflon.
3. corrosion protection micro-flow regulating valve as claimed in claim 1 is characterized in that being provided with Packing seat (6) between interior filler group (5) of described valve and the described loam cake (9).
4. corrosion protection micro-flow regulating valve as claimed in claim 1 is characterized in that described loam cake (9) is threaded in described valve body (1) and goes up and locked by thin nut (8).
5. corrosion protection micro-flow regulating valve as claimed in claim 1 is characterized in that two end faces of described valve body liner (2) exceed two end faces of described valve body (1).
6. corrosion protection micro-flow regulating valve as claimed in claim 1 is characterized in that the last inside of described loam cake (9) is provided with counterbore.
7. corrosion protection micro-flow regulating valve as claimed in claim 6, it is characterized in that being provided with in the described counterbore sealing guiding device, described sealing guiding device comprises continuous packing spring (10), Packing seat (6), last filler group (11), Gland (12) and the hold-down grid (13) that is sleeved on the described valve rod (7) of order, and described hold-down grid (13) is fixedly connected on the described loam cake (9).
8. corrosion protection micro-flow regulating valve as claimed in claim 7 is characterized in that the described material of going up filler group (11) is a teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010501325 CN101956852A (en) | 2010-10-11 | 2010-10-11 | Anti-corrosion micro flow regulation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010501325 CN101956852A (en) | 2010-10-11 | 2010-10-11 | Anti-corrosion micro flow regulation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956852A true CN101956852A (en) | 2011-01-26 |
Family
ID=43484362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010501325 Pending CN101956852A (en) | 2010-10-11 | 2010-10-11 | Anti-corrosion micro flow regulation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661439A (en) * | 2012-05-17 | 2012-09-12 | 济南雪山节能科技有限公司 | Anti-corrosion and anti-scaling heating valve core |
| CN103867882A (en) * | 2012-12-10 | 2014-06-18 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88212252U (en) * | 1988-03-10 | 1988-10-19 | 刘俊国 | Closely sealed and abrasion-resistant cut-off valve |
| CN2083223U (en) * | 1990-05-19 | 1991-08-21 | 浙江省化学工业研究所 | Corrosion-resisting valve |
| CN2145898Y (en) * | 1992-11-05 | 1993-11-10 | 明赐东 | Corrosion-resistant single-seat regulating valve |
| CN201443605U (en) * | 2009-07-17 | 2010-04-28 | 李岩 | Polytetrafluoroethylene pneumatic control valve |
| CN201858412U (en) * | 2010-10-11 | 2011-06-08 | 无锡智能自控工程有限公司 | Anti-corrosive micro flow adjusting valve |
-
2010
- 2010-10-11 CN CN 201010501325 patent/CN101956852A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88212252U (en) * | 1988-03-10 | 1988-10-19 | 刘俊国 | Closely sealed and abrasion-resistant cut-off valve |
| CN2083223U (en) * | 1990-05-19 | 1991-08-21 | 浙江省化学工业研究所 | Corrosion-resisting valve |
| CN2145898Y (en) * | 1992-11-05 | 1993-11-10 | 明赐东 | Corrosion-resistant single-seat regulating valve |
| CN201443605U (en) * | 2009-07-17 | 2010-04-28 | 李岩 | Polytetrafluoroethylene pneumatic control valve |
| CN201858412U (en) * | 2010-10-11 | 2011-06-08 | 无锡智能自控工程有限公司 | Anti-corrosive micro flow adjusting valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661439A (en) * | 2012-05-17 | 2012-09-12 | 济南雪山节能科技有限公司 | Anti-corrosion and anti-scaling heating valve core |
| CN103867882A (en) * | 2012-12-10 | 2014-06-18 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110126 |