CN2658512Y - Upper multi-stage pressure reducing regulating valve set - Google Patents
Upper multi-stage pressure reducing regulating valve set Download PDFInfo
- Publication number
- CN2658512Y CN2658512Y CN 200320110885 CN200320110885U CN2658512Y CN 2658512 Y CN2658512 Y CN 2658512Y CN 200320110885 CN200320110885 CN 200320110885 CN 200320110885 U CN200320110885 U CN 200320110885U CN 2658512 Y CN2658512 Y CN 2658512Y
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- China
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- valve body
- valve
- regulating valve
- valve set
- short tube
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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.)
- Expired - Fee Related
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Abstract
The utility model provides a upstream multistage depressurizing relief valve set composed of a short pipe, a pressing sleeve, a rectifying pore late, an automatically-adjusted valve set, a normal open pipe, a valve body (1) and a valve body (2), etc., and is characterized in that the valve body (1) front is provided with the short pipe; the rectifying pore plate is equipped inside the short pipe and fixed through the pressing sleeve. The utility model has the beneficial effect that the gas is depressurized in multistage way before the gas passes the automatically-adjusted valve, the flow speed is reduced, the vibration of the relief valve set is eliminated, the noise is greatly lowered and the service life of the equipment is prolonged.
Description
Affiliated technical field
The utility model relates to a kind of upstream multistage step-down pressure regulator valve group, is the device of regulating coal gas, air mass flow and pressure.
Background technique
Use modulating valve group at present at coal gas, air conduit adjusted flow system flow, pressure, adopt mostly the automatic regulating valve group directly is installed between two big flanges, because the pressure amplitude of regulating is bigger, KPa more than 100 before the valve reduces to tens KPa after the pressure regulator valve group, the pressure of its loss can be converted into the kinetic energy of gas, gas flow rate by valve increases greatly, produce very big noise, and make pipeline produce strong vibration, the working life of seriously having reduced equipment.
Summary of the invention
For deficiency such as overcome that existing pressure regulator valve group noise is big, vibration is strong and working life is short, the utility model provides a kind of upstream multistage step-down pressure regulator valve group, owing to before valve, taked multistage dropping equipment, extraordinary noise, vibration and cavitation phenomenon no longer taken place under the situation of High Pressure Difference.
The technological scheme that its technical problem that solves the utility model adopts is a upstream multistage step-down pressure regulator valve group, by short tube, gland, the rectification orifice plate, the automatic regulating valve group, the normal open pipe, the second-class composition of valve body one and valve body, before valve body one, short tube is housed, short tube is connected with valve body one usefulness bolt, a plurality of rectification orifice plates are installed in the short tube, fix with gland, aperture gathers on the rectification orifice plate, aperture is equilateral triangle and distributes, hole during installation on a plurality of rectification orifice plates is interlaced, play the effect of multistage step-down, airspeed is slowed down, automatic regulating valve group and normal open pipe are housed between valve body one and valve body two, the automatic regulating valve group is made up of two heavy caliber automatic regulating valves and a small-bore automatic regulating valve, automatic regulating valve is by valve body and automatic executing agency, compositions such as linkage mechanism, automatic executing agency are accepted the instruction of system, and (electrical signal 4～20mA) and moving drives the valve plate rotation and then realizes the adjusting of the circulation area of valve by linkage mechanism.
The beneficial effects of the utility model are that gas has passed through multistage step-down before through the automatic regulating valve group, flow velocity is greatly reduced, thereby eliminated the vibration of pressure regulator valve group, and greatly reduce noise, have prolonged the working life of equipment.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is embodiment's a tectonic maps.
Fig. 2 is the A-A sectional structural map of Fig. 1
Fig. 3 is a rectification orifice plate tectonic maps
Among the figure: 1. short tube; 2. gland; 3. rectification orifice plate; 4. valve body one; 5. automatic regulating valve group; 6. valve body two; 7. normal open pipe; 8, automatic executing agency; 9, linkage mechanism; 10. modulating valve body.
Embodiment
As shown in Figure 1, 2, automatic regulating valve group (5) and normal open pipe (7) are installed between valve body one (4) and the valve body two (6), connect by bolt and nut, valve body one (4) the preceding short tube (1) that is equipped with, short tube (1) and valve body one (4) are connected with bolt and nut, and a plurality of rectification orifice plates (3) are installed in the short tube (1), fixing with gland (2), hole during installation on a plurality of rectification orifice plates (3) is interlaced, plays the effect of multistage step-down, and airspeed is slowed down.Automatic regulating valve group (5) is made up of two heavy caliber automatic regulating valves and a small-bore automatic regulating valve, automatic regulating valve is made up of regulating valve body (10) and automatic executing agency (8), linkage mechanism (9) etc., automatic executing agency (8) is accepted the instruction (electrical signal 4～20mA) and moving of system, drive the adjusting of the circulation area of valve plate rotation and then realization valve by linkage mechanism (9), thereby realize adjusting flow system flow and pressure.
Claims (2)
1, the multistage step-down pressure regulator valve in a kind of upstream group, by short tube, gland, rectification orifice plate, automatic regulating valve group, normal open pipe, valve body one with valve body is second-class forms, it is characterized in that: before valve body one short tube is housed, the rectification orifice plate is installed in the short tube, fixes with gland.
2, according to the described upstream of claim (1) multistage step-down pressure regulator valve group, it is characterized in that: the aperture that gathers on the rectification orifice plate, each aperture are equilateral triangle and distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110885 CN2658512Y (en) | 2003-11-12 | 2003-11-12 | Upper multi-stage pressure reducing regulating valve set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110885 CN2658512Y (en) | 2003-11-12 | 2003-11-12 | Upper multi-stage pressure reducing regulating valve set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2658512Y true CN2658512Y (en) | 2004-11-24 |
Family
ID=34343952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110885 Expired - Fee Related CN2658512Y (en) | 2003-11-12 | 2003-11-12 | Upper multi-stage pressure reducing regulating valve set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2658512Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387877C (en) * | 2006-03-15 | 2008-05-14 | 陈秀林 | Grating voltage-adjusting valve set |
| CN101253458B (en) * | 2005-08-26 | 2011-06-29 | 株式会社富士金 | Gasket type throttle and pressure type flow controller using the same |
| CN107356443A (en) * | 2017-08-18 | 2017-11-17 | 西安中车永电捷通电气有限公司 | Air-conditioner set checking experiment device |
-
2003
- 2003-11-12 CN CN 200320110885 patent/CN2658512Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101253458B (en) * | 2005-08-26 | 2011-06-29 | 株式会社富士金 | Gasket type throttle and pressure type flow controller using the same |
| CN100387877C (en) * | 2006-03-15 | 2008-05-14 | 陈秀林 | Grating voltage-adjusting valve set |
| CN107356443A (en) * | 2017-08-18 | 2017-11-17 | 西安中车永电捷通电气有限公司 | Air-conditioner set checking experiment device |
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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 |