CN201180827Y - Adjustable steam special pressure reducing valve - Google Patents
Adjustable steam special pressure reducing valve Download PDFInfo
- Publication number
- CN201180827Y CN201180827Y CNU2007201761202U CN200720176120U CN201180827Y CN 201180827 Y CN201180827 Y CN 201180827Y CN U2007201761202 U CNU2007201761202 U CN U2007201761202U CN 200720176120 U CN200720176120 U CN 200720176120U CN 201180827 Y CN201180827 Y CN 201180827Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- piston
- reducing valve
- adjustable steam
- 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 the pressure reducing valve filed, particularly to a special adjustable steam reducing valve, and overcomes the shortcomings that the prior reducing valve is difficult to process and causes resource waste easily, etc. The special adjustable steam reducing valve comprises a valve body, a bottom cover, a sealing gasket, a hexagon nut, a valve clack, a cylinder sleeve, a piston, a limit screw, a filter screen, a secondary valve clack, a secondary valve seat, a valve handle, an adjusting spring, a top cover, a safety cap, an adjusting screw, a sealing gasket, a secondary valve spring, a middle cover, a sealing gasket, a lower seat, a gland bush, a limit nut and a main valve spring. The reducing valve is simple to process, can not cause resource waste, and can be used for various environments for using the reducing valve.
Description
Technical field
The utility model relates to the reduction valve field, and what be specifically related to is the special-purpose reduction valve of a kind of adjustable steam.
Background technique
Known steam reducing valve is made up of valve body, middle cover, loam cake, main valve clack, valve seat, piston, pilot valve, safety helmet, adjusting screw, main spool spring, pilot valve spring and Regulation spring such as the structure of Y43H type.It mainly contains following defective: at first the main valve clack form is a tapering, and has the column valve rod, has caused the difficulty in the processing like this, and main valve clack is through forming sealing pair with valve seat after break-in.In case after valve was out of service, the sealing pair of main valve clack and valve seat is difficult to overlap once again and easily by the medium high-flow-speed outwash, leakage rate strengthens like this, has caused the wasting of resources.Secondly, when main valve clack during in big aperture, main valve clack is easy to generate vibration.And cause full-gear easily.Be difficult for regulating flow, also very easily cause the wasting of resources.
The model utility content
In order to overcome existing steam reducing valve processing difficulties, cause the deficiency of the wasting of resources etc. easily, the purpose of this utility model is: provide a kind of processing simple, be difficult for causing the steam reducing valve of the wasting of resources.
The technological scheme that its technical problem that solves the utility model adopts is as follows: the special-purpose reduction valve of a kind of adjustable steam, and valve inner comprises valve body, piston, bottom, flap and main spool spring; Bottom is positioned at the valve body bottom, and piston, bottom, flap and main spool spring are positioned at valve body, and main spool spring one end is connected with bottom, and an end is connected with flap, and piston is positioned at the flap top; Described flap outside is cylindric, and end face is the plane; Described piston is the shape that the lower end has the column valve rod, and described flap is positioned at the piston below.
Described valve body length is 0.05-5 times of prior art valve body length.
Described piston surface area is 0.05-5 a times of prior art piston surface area.Described piston adopts and strengthens design, and piston strengthens, makes inlet hole and feedback pore and filter screen also along with increase, can prevent the not obstruction of clean medium so effectively.
Described flap is a lower openings, and there is annular slot inside, and from the longitudinal section, the shape of annular slot is that the turning is the U-groove bevel at right angle, and the top of main spool spring can be embedded in the groove of flap just.
Described valve body, bottom, flap, valve seat and main spool spring are linked in sequence.Adopt the hexagon nut screw thread to fix between valve body and the bottom, and install the purpose that sealing gasket reaches plane sealing additional.
Make the sealing of main valve into plane sealing.Easy to process like this, very easily form sealing pair.Prevented gross leak effectively.Saved resource.
Described valve seat adopts the lengthening design, with the valve seat lengthening, valve seat is processed into some characteristics of regulating flow effectively, as straight line, equal percentage, cage etc.; Flap is placed in it, can regulate flow effectively.Reduce cavitation erosion and noise.Further prevented the vibration of flap.
The special-purpose reduction valve of adjustable steam also comprises cylinder sleeve, piston, and cylinder sleeve and piston are fixed in the valve body, and piston is different with conventional piston, and incorporate main valve clack 2/1sts is divided into valve rod and flap.Make valve rod and piston integrated, solved the phenomenon of seizure of piston so effectively.
The special-purpose reduction valve of adjustable steam also comprises middle cover, sealing gasket, top cover, safety helmet, hexagon nut.Described middle cover, sealing gasket, top cover, safety helmet are linked in sequence successively, use sealing gasket to seal between middle cover and top cover, and fix with the hexagon nut screw thread.
The special-purpose reduction valve of adjustable steam also comprises and pays valve spring, pair flap, pair valve seat, valve rod, Regulation spring, gland, stop nut, adjusting screw.Described pair of valve spring, pair flap, pair valve seat, valve rod, Regulation spring, gland, stop nut, adjusting screw are linked in sequence, and place in the inner chamber that is formed jointly by middle cover, top cover, safety helmet.
The special-purpose reduction valve of adjustable steam also comprises limited screw and filter screen, and described limited screw is installed in the middle cover side, built-in filter screen, and integral body is connected with a pair flap and regulates and control.
Compared with prior art, the beneficial effects of the utility model are:
1, with incorporate main valve clack 2/1sts, is divided into valve rod and flap.Make valve rod and piston integrated, solved the phenomenon of seizure of piston so effectively.
2, the sealing with main valve makes plane sealing into.Easy to process like this, very easily form sealing pair.Prevented gross leak effectively.Saved resource.
3, with the valve seat lengthening, valve seat is processed into some characteristics of regulating flow effectively, as straight line, equal percentage, cage etc.; Flap is placed in it, can regulate flow effectively.Reduce cavitation erosion and noise.Further prevented the vibration of flap.
4, piston strengthens, makes inlet hole and feedback pore and filter screen also along with increase, can prevent the not obstruction of clean medium so effectively.
Description of drawings
Fig. 1 is embodiment's 1 structural representation of the special-purpose reduction valve of the utility model adjustable steam;
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified, but not as to qualification of the present utility model.
See also the embodiment of the special-purpose reduction valve of the utility model adjustable steam shown in Figure 1,
Embodiment 1
The special-purpose reduction valve of a kind of adjustable steam, valve inner comprises valve body 1, piston 7, bottom 2, flap 5 and main spool spring 24; Bottom 2 is positioned at valve body 1 bottom, and piston 7, bottom 2, flap 5 and main spool spring 24 are positioned at valve body 1, and main spool spring 24 1 ends are connected with bottom 2, and an end is connected with flap 5, and piston 7 is positioned at flap 5 tops; Described flap 5 outsides are cylindric, and end face is the plane; Described piston 7 has the shape of column valve rod for the lower end, and described flap 5 is positioned at piston 7 belows.
The 0.05-5 that described valve body 1 length is prior art valve body length doubly.
The 0.05-5 that described piston 7 surface areas are the prior art piston surface area doubly.Described piston 7 adopts and strengthens design, and piston 7 strengthens, makes inlet hole and feedback pore and filter screen 9 also along with increase, can prevent the not obstruction of clean medium so effectively.
Described flap 5 is a lower openings, and there is annular slot inside, and from the longitudinal section, the shape of annular slot is that the turning is the U-groove bevel at right angle, and the top of main spool spring 24 can be embedded in the groove of flap 5 just.
Described valve body 1, bottom 2, flap 5 and main spool spring 24 are linked in sequence.Adopt hexagon nut 4 screw threads to fix between valve body 1 and the bottom 2, and install the purpose that sealing gasket 3 reaches plane sealing additional.
The special-purpose reduction valve of adjustable steam also comprises cylinder sleeve 6, piston 7, and cylinder sleeve 6 is fixed in the valve body 1 with piston 7, and piston 7 is different with conventional piston, and incorporate main valve clack 2/5ths one is divided into valve rod and flap.Make valve rod and the piston 7 integrated, solved the stuck phenomenon of piston 7 so effectively.
The special-purpose reduction valve of adjustable steam also comprises middle cover 19, sealing gasket 17, top cover 14, safety helmet 15, hexagon nut 4.Described middle cover 19, sealing gasket 17, top cover 14, safety helmet 15 are linked in sequence successively, and 14 of middle cover 19 and top covers use sealing gasket 17 to seal, and fix with hexagon nut 4 screw threads.
The special-purpose reduction valve of adjustable steam also comprises and pays valve spring 18, pair flap 10, pair valve seat 11, valve rod 12, Regulation spring 13, gland 22, stop nut 23, adjusting screw 16.Described pair of valve spring 18, pair flap 10, pair valve seat 11, valve rod 12, Regulation spring 13, gland 22, stop nut 23, adjusting screw 16 are linked in sequence, and place in the inner chambers that formed jointly by middle cover 19, top cover 14, safety helmet 15.
The special-purpose reduction valve of adjustable steam also comprises limited screw 8 and filter screen 9, and described limited screw 8 is installed in middle cover 19 sides, built-in filter screen 9, and integral body is connected with a pair flap 10 and regulates and control.
Claims (2)
1, the special-purpose reduction valve of a kind of adjustable steam comprises valve body, piston, bottom, flap and main spool spring; Bottom is positioned at the valve body bottom, and piston, bottom, flap and main spool spring are positioned at valve body, and main spool spring one end is connected with bottom, and an end is connected with flap, and piston is positioned at the flap top; It is characterized in that described flap outside is cylindric, end face is the plane; Described piston is the shape that the lower end has the column valve rod, and described flap is positioned at the piston below.
2, the special-purpose reduction valve of adjustable steam according to claim 1, it is characterized in that: described flap is a lower openings, and there is annular slot inside, from the longitudinal section, the shape of annular slot is that the turning is the U-groove bevel at right angle, and the top of main spool spring can be embedded in the groove of flap just.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201761202U CN201180827Y (en) | 2007-08-31 | 2007-08-31 | Adjustable steam special pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201761202U CN201180827Y (en) | 2007-08-31 | 2007-08-31 | Adjustable steam special pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180827Y true CN201180827Y (en) | 2009-01-14 |
Family
ID=40250327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201761202U Expired - Fee Related CN201180827Y (en) | 2007-08-31 | 2007-08-31 | Adjustable steam special pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180827Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607667A (en) * | 2014-11-13 | 2016-05-25 | 丰田自动车株式会社 | Pressure reduction valve and gas supply device |
-
2007
- 2007-08-31 CN CNU2007201761202U patent/CN201180827Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607667A (en) * | 2014-11-13 | 2016-05-25 | 丰田自动车株式会社 | Pressure reduction valve and gas supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20090930 |