CN1414275A - Parallel valve port type pressure reduction valve - Google Patents
Parallel valve port type pressure reduction valve Download PDFInfo
- Publication number
- CN1414275A CN1414275A CN 02145384 CN02145384A CN1414275A CN 1414275 A CN1414275 A CN 1414275A CN 02145384 CN02145384 CN 02145384 CN 02145384 A CN02145384 A CN 02145384A CN 1414275 A CN1414275 A CN 1414275A
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- spool
- valve
- parallel
- fluid
- pressure
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- 239000012530 fluid Substances 0.000 claims abstract description 53
- 238000013016 damping Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 230000003628 erosive effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The present invention discloses a parallel valve port type pressure reducing valve, it includes regulating nut, end cover, regulating rod, pressure regulating spring, valve seat, valve core; the valve core is installed in the valve seat, the end cover pressure the pressure regulating spring on the valve core through regulating rod, the regulating nut is installed on the end cover; the flow passage on valve seat connects fluid inlet and fluid outlet; on the said flow passage, the valve core of the two parallel valve ports capable of regulating fluid inlet and fluid outlet synchronously is installed, a damper hole is installed on the flow passage or valve core. The present invention can reduce flow speed of fluid and can improve the phenomena of noise, cavitetion and erosion.
Description
Technical field
The present invention relates to a kind of valve port formula reduction valve in parallel.
Background technique
Reduction valve utilizes hydrostatic pressure and the work of spring force principle for balance.After pressure fluid enters reduction valve, flow out behind expenditure and pressure, post-decompression hydrodynamic pressure and spring force balance are stabilized on the spring set pressure outlet pressure.Outlet pressure is during the reduction valve proper functioning:
, in the formula: the outlet pressure of p for regulating, K is a spring rate, x
0Be the spring pre compressed magnitude, x is a valve port opening, and A is the spool effective active area.In the formula
Be adjusting pressure,
Be the pressure wave momentum.
The major character of existing reduction valve is to have only an adjustable valve port, when needs during by big flow, need to increase flow area, promptly increase valve core diameter, the physical dimension of reduction valve increases on the one hand, and on the other hand, the static pressure that acts on the spool increases, the measure of taking for the balance static pressure is: (1) increases spring rate K, but reduction valve pressure regulation precision reduces; (2) increase spring pre compressed magnitude x
0, the corresponding construction size also increases.Owing to have only an adjustable valve port, when the flow by reduction valve changed, valve port opening x changed greatly, and the outlet pressure fluctuation is bigger.The power of surging that produces when fluid flows through valve port in addition influences quiet, the dynamic performance of reduction valve.
Summary of the invention
The purpose of this invention is to provide a kind of valve port formula reduction valve in parallel, utilize two adjustable valve ports in parallel, make reduction valve hour can pass through bigger flow in physical dimension.
The technical solution used in the present invention is as follows:
Scheme 1: it comprises adjusting nut, end cap, adjustable lever, pressure adjusting spring, valve seat, spool; Spool is contained in the valve seat, and end cap is pressed in pressure adjusting spring on the spool by adjustable lever, and adjusting nut is installed on the end cap; On the fluid input of valve seat and runner that fluid output is connected, be equipped with can the synchronization regulation fluid input and fluid output form the spool of two valve ports in parallel that communicate or cut off, damping hole is contained in fluid output and leads on the runner of the big end of spool.
Scheme 2: it comprises adjusting nut, end cap, adjustable lever, pressure adjusting spring, valve seat, spool; Spool is contained in the valve seat, and end cap is pressed in pressure adjusting spring on the spool by adjustable lever, and adjusting nut is installed on the end cap; On the fluid input of valve seat and runner that fluid output is connected, be equipped with can the synchronization regulation fluid input and fluid output form the spool of two valve ports in parallel that communicate or cut off, on the spool corresponding, have damping hole with fluid output.
The present invention compares with existing reduction valve with existing, under the identical situation of physical dimension, and the reduction valve of this kind structure, but because the valve port in parallel with two synchronization regulation can pass through bigger flow.By flow when identical, but because the valve port in parallel with two synchronization regulation, the fluid flow at each valve port place reduces, thereby rate of flow of fluid reduces, and can improve noise and steam void, cavitation phenomenons.Simultaneously, owing to have two adjustable valve ports in parallel, and the direction of fluid outflow valve pocket is opposite, can make the equilibrium of forces of surging suffered on the spool fall a part, improves quiet, the dynamic performance of reduction valve.The beneficial effect that has technology to compare to have is:
Description of drawings
Fig. 1 is a structural principle schematic representation of the present invention;
Fig. 2 is an another kind of structural principle schematic representation of the present invention;
Fig. 3 is a kind of shape schematic representation of spool;
Fig. 4 is the another kind of shape schematic representation of spool.
Embodiment
As shown in Figure 1, the present invention includes adjusting nut 1, end cap 2, adjustable lever 3, pressure adjusting spring 4, valve seat, spool; Spool is contained in the valve seat, and end cap 2 is pressed in pressure adjusting spring 4 on the spool by adjustable lever 3, and adjusting nut is installed on the end cap 2; On the fluid input P of valve seat 5 and runner that fluid output P1 is connected, the spool that energy synchronization regulation fluid input P and fluid output P1 form two valve port a in parallel, b communicating or cut off is housed, and damping hole 7 is contained in fluid output P1 and leads on the runner of the big end of spool.
As shown in Figure 2, be another kind of structural principle schematic representation of the present invention, with difference shown in Figure 1 be that damping hole 10 is opened on spool 9.
As shown in Figure 3, spool is a small cylinder 11 for close pressure adjusting spring 4 one sides, and is followed successively by the spool of cone 12 and large cylinder 13 compositions, has damping hole on the spool or does not have damping hole (damping hole does not draw among the figure).
As shown in Figure 4, spool is for being small cylinder 14 near pressure adjusting spring 4 one sides, and is followed successively by end face and has the spool that the large cylinder 15 of tapering and bulb 16 are formed, and has damping hole on the spool or do not have damping hole (damping hole does not draw among the figure).
Its working procedure as shown in Figure 1, pressure fluid enters from fluid input P mouth, fluid output P1 mouth flows out, the pressure fluid of fluid output P1 mouth enters spool 6 right sides through damping hole 7, static pressure on acting on spool 6 right sides is during less than pressure adjusting spring 4 precompressions, effect lower valve core 6 at spring force keeps maximum opening degree with valve seat 5, static pressure on acting on spool 6 right sides is during greater than the pressure adjusting spring precompression, spool 6 moves to left, valve port a and b reduce simultaneously, the pressure that makes fluid output P1 mouth is less than fluid input P mouth pressure, and fluid output P1 mouth pressure is stabilized on the pressure adjusting spring set pressure.The Regulation spring pre compressed magnitude, can regulate fluid outlet P1 mouth pressure.
The working principle of Fig. 2 is: pressure fluid enters from fluid input P mouth, fluid output P1 mouth flows out, the damping hole 10 of the pressure fluid of fluid output P1 mouth on spool 9 enters spool 9 right sides, static pressure on acting on spool 9 right sides is during less than pressure adjusting spring 4 precompressions, effect lower valve core 9 at spring force keeps maximum opening degree with valve seat 8, static pressure on acting on spool 9 right sides is during greater than the pressure adjusting spring precompression, spool 9 moves to left, valve port a and b reduce simultaneously, the pressure that makes fluid output P1 mouth is less than fluid input P mouth pressure, and fluid output P1 mouth pressure is stabilized on the pressure adjusting spring set pressure.The Regulation spring pre compressed magnitude, can regulate fluid outlet P1 mouth pressure.
The spool and the valve seat construction of valve port formula reduction valve in parallel of the present invention are installed in a direct-acting overflow valve, can form piloted reducer.
Claims (6)
1. a valve port formula reduction valve in parallel comprises adjusting nut (1), end cap (2), adjustable lever (3), pressure adjusting spring (4), valve seat, spool; Spool is contained in the valve seat, and end cap (2) is pressed in pressure adjusting spring (4) on the spool by adjustable lever (3), and adjusting nut is installed on the end cap (2); It is characterized in that: on the fluid input (P) of valve seat (5) and runner that fluid output (P1) is connected, the spool that energy synchronization regulation fluid input (P) and fluid output (P1) form two valve port (a) and (b) in parallel that communicate or cut off is housed, and damping hole (7) is contained in fluid output (P1) and leads on the runner of the big end of spool.
2. valve port formula reduction valve in parallel according to claim 1 is characterized in that: said spool is small cylinder (11) for close pressure adjusting spring (4) one sides, and is followed successively by the spool (6) of cone (12) and large cylinder (13) composition.
3. valve port formula reduction valve in parallel according to claim 1 is characterized in that: said spool is for being small cylinder (14) near pressure adjusting spring (4) one sides, and is followed successively by the spool that end face has the large cylinder (15) of tapering and bulb (16) composition.
4. a valve port formula reduction valve in parallel comprises adjusting nut (1), end cap (2), adjustable lever (3), pressure adjusting spring (4), valve seat, spool; Spool is contained in the valve seat, and end cap (2) is pressed in pressure adjusting spring (4) on the spool by adjustable lever (3), and adjusting nut is installed on the end cap (2); It is characterized in that: on the fluid input (P) of valve seat (10) and runner that fluid output (P1) is connected, the spool that energy synchronization regulation fluid input (P) and fluid output (P1) form two valve port (a) and (b) in parallel that communicate or cut off is housed, on the spool corresponding, has damping hole (10) with fluid output (P1).
5. valve port formula reduction valve in parallel according to claim 4, it is characterized in that: said spool is small cylinder (11) for close pressure adjusting spring (4) one sides, and be followed successively by the spool (9) that cone (12) and large cylinder (13) are formed, have damping hole (10) on the spool (9).
6. valve port formula reduction valve in parallel according to claim 4, it is characterized in that: said spool is small cylinder (14) for close pressure adjusting spring (4) one sides, and be followed successively by end face and have the spool that the large cylinder (15) of tapering and bulb (16) are formed, have damping hole on the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145384 CN1204344C (en) | 2002-11-21 | 2002-11-21 | Parallel valve port type pressure reduction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145384 CN1204344C (en) | 2002-11-21 | 2002-11-21 | Parallel valve port type pressure reduction valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1414275A true CN1414275A (en) | 2003-04-30 |
| CN1204344C CN1204344C (en) | 2005-06-01 |
Family
ID=4750877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02145384 Expired - Fee Related CN1204344C (en) | 2002-11-21 | 2002-11-21 | Parallel valve port type pressure reduction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1204344C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996549A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Pressure reducing device for water pressure testing of rubber molding equipment |
| CN102996550A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Controlled oil-intake pressure reducing valve of rubber molding equipment |
| CN102996544A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Dual-oil-circuit pressure reducing valve of rubber molding equipment |
| CN101839265B (en) * | 2009-03-18 | 2013-06-05 | 卢志刚 | Series and parallel conversion hydraulic valve |
| CN105465404A (en) * | 2014-09-30 | 2016-04-06 | 比尔克特韦尔克有限公司 | Diaphragm valve |
| CN113586724A (en) * | 2021-08-16 | 2021-11-02 | 海默新宸水下技术(上海)有限公司 | Medicament injection control valve |
-
2002
- 2002-11-21 CN CN 02145384 patent/CN1204344C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839265B (en) * | 2009-03-18 | 2013-06-05 | 卢志刚 | Series and parallel conversion hydraulic valve |
| CN102996549A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Pressure reducing device for water pressure testing of rubber molding equipment |
| CN102996550A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Controlled oil-intake pressure reducing valve of rubber molding equipment |
| CN102996544A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Dual-oil-circuit pressure reducing valve of rubber molding equipment |
| CN102996550B (en) * | 2012-10-31 | 2016-08-17 | 无锡鸿声铝业有限公司 | A kind of rubber-moulding equipment controlled oil-feed air relief valve |
| CN105465404A (en) * | 2014-09-30 | 2016-04-06 | 比尔克特韦尔克有限公司 | Diaphragm valve |
| CN113586724A (en) * | 2021-08-16 | 2021-11-02 | 海默新宸水下技术(上海)有限公司 | Medicament injection control valve |
| CN113586724B (en) * | 2021-08-16 | 2023-09-22 | 海默新宸水下技术(上海)有限公司 | Medicament injection control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1204344C (en) | 2005-06-01 |
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