CN202629322U - Pressure-balance-type guided control valve of multi-section multi-stage decompression sleeve - Google Patents
Pressure-balance-type guided control valve of multi-section multi-stage decompression sleeve Download PDFInfo
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- CN202629322U CN202629322U CN 201220254770 CN201220254770U CN202629322U CN 202629322 U CN202629322 U CN 202629322U CN 201220254770 CN201220254770 CN 201220254770 CN 201220254770 U CN201220254770 U CN 201220254770U CN 202629322 U CN202629322 U CN 202629322U
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- sleeve
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Abstract
The utility model relates to a pressure-balance-type guided control valve of a multi-section multi-stage decompression sleeve. The pressure-balance-type guided control valve comprises a valve body; a valve core is arranged inside the valve body; a valve seat is arranged in an inner cavity of the valve body; and a sleeve assembly is arranged on the valve seat. The pressure-balance-type guided control valve is characterized in that the sleeve assembly comprises an inner sleeve sleeved on the valve core and an outer sleeve sleeved on the inner sleeve; a plurality of annular circulating openings, which are uniformly arranged along the circumference of the valve core, are arranged on the outer surface of the valve core of the inner cavity of the valve body; a partition section is formed between the adjacent circulating openings; the partition section is tightly matched with the inner wall of the inner sleeve; a medium flow channel communicated with a medium outlet on the valve body is arranged at the upper part of the outer sleeve; groove bodies, which are distributed by layers, are arranged on the wall of the inner sleeve; and a plurality of groove bodies are arranged at each layer, and the groove bodies at the top layer are communicated with the medium flow channel at the upper part of the outer sleeve. According to the pressure-balance-type guided control valve, flash and cavitation phenomena caused by sudden drop of medium pressure of the valve in a using process can be reduced, and the service life of the valve is prolonged.
Description
Technical field
The utility model relates to a kind of modulating valve, the multistage step-down cage guiding of especially a kind of pressure-balancing type multi-section type modulating valve.
Background technique
At present, control flow rate in the industry is regulated the size of flow and generally all can be used modulating valve.Under some special operation condition, when pressure difference was very big, medium phenomenons such as flash distillation, cavitation erosion can occur in modulating valve, was accompanied by noise, vibration, the internals characteristic phenomenon of damaging and lower efficiency etc., the working life that is prone to cause shortening valve to occur.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the existing technology, and the multistage step-down cage guiding of a kind of pressure-balancing type multi-section type modulating valve is provided, and reduces medium and phenomenons such as flash distillation, cavitation erosion occur after through modulating valve, prolongs valve service time.
According to the technological scheme that the utility model provides, the multistage step-down cage guiding of said pressure-balancing type multi-section type modulating valve comprises valve body, and valve body is provided with medium import and media outlet; Valve gap is installed in upper end at said valve body, and at the set inside spool of valve body, the lower end of spool is the medium import; Inner chamber at said valve body is installed valve seat, and sleeve assembly is set on valve seat, and gland is set above sleeve assembly; Characteristic is: said sleeve assembly comprises the inner sleeve that is set on the spool and is set in the outer sleeve on the inner sleeve; On the outer surface of the spool that is positioned at body cavity, be provided with a plurality of annular flow ports of circumferentially evenly arranging along spool, form separating part between the adjacent communication port, the inwall of this separating part and inner sleeve closely cooperates; The top of said outer sleeve be provided with valve body on the MEDIA FLOW circulation passage that is communicated with of media outlet; On the barrel of said inner sleeve, be provided with the cell body that distributes by layer, every layer is equipped with a plurality of cell bodies, and the cell body of the said the superiors is communicated with the MEDIA FLOW circulation passage on outer sleeve top.
Closely cooperate between the outer wall of said inner sleeve and the inwall of outer sleeve.
Said inner sleeve and outer sleeve are visual as a whole.
On said spool, be provided with balancing orifice; Said balancing orifice comprises the vertical balancing orifice that is arranged on the spool bottom along the longitudinal center line of spool; Vertically the upper end of balancing orifice extends to and is positioned at the inner spool place of gland, and is communicated with the horizontal balancing orifice that radially is provided with along spool.
The valve gap wound gasket is installed in joint at said valve gap and valve body.
The valve seat wound gasket is installed in joint at said valve seat and valve body.
The balanced seal ring is set between said gland and spool.
The multistage step-down cage guiding of the described pressure-balancing type multi-section type of the utility model modulating valve can effectively reduce the valve harmful phenomenons such as the flash distillation that produces, cavitation erosion that in use sharply descend because of pressure medium; Prolong the working life of valve, reduce the whole user cost of valve.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the described spool of the utility model.
Fig. 3 is the structural representation of the described sleeve assembly of the utility model.
Fig. 4 is the structural representation of the described inner sleeve of the utility model.
Embodiment
Below in conjunction with concrete accompanying drawing the utility model is described further.
Like Fig. 1～shown in Figure 4: the multistage step-down cage guiding of pressure-balancing type multi-section type modulating valve comprises valve body 1, valve gap 2, spool 3, inner sleeve 4, valve seat 5, sleeve assembly 6, gland 7, balanced seal ring 8, valve seat wound gasket 9, valve gap wound gasket 10, outer sleeve 11, communication port 12, cell body 13, medium discharge route 14, balancing orifice 15, separating part 16 etc.
The utility model comprises valve body 1, and valve body 1 is provided with medium import and media outlet; Valve gap 2 is installed in upper end at said valve body 1, in the joint of valve gap 2 and valve body 1 valve gap wound gasket 10 is installed, and at the set inside spool 3 of valve body 1, the lower end of spool 3 is the medium import; Inner chamber at said valve body 1 is installed valve seat 5, in the joint of valve seat 5 and valve body 1 valve seat wound gasket 9 is installed; On said valve seat 5, sleeve assembly 6 is set, said sleeve assembly 6 comprises the inner sleeve 4 that is set on the spool 3 and is set in the outer sleeve 11 on the inner sleeve 4; Gland 7 is set above said sleeve assembly 6, between gland 7 and spool 3, balanced seal ring 8 is set, when valve closing, guarantee the sealing of valve by balanced seal ring 8;
As shown in Figure 2; On the outer surface of the spool 3 that is positioned at valve body 1 inner chamber, be provided with a plurality of annular flow ports of circumferentially evenly arranging 12 along spool 3; Form separating part 16 between the adjacent communication port 12; This separating part 16 closely cooperates with the inwall of inner sleeve 4, prevents that medium from by circulation between separating part 16 and the inner sleeve 4, reducing the effect of multistage step-down; As shown in Figure 3, the top of said outer sleeve 11 be provided with valve body 1 on the MEDIA FLOW circulation passage 14 that is communicated with of media outlet; As shown in Figure 4, on the barrel of said inner sleeve 4, be provided with the cell body 13 that distributes by layer, every layer is equipped with a plurality of cell bodies 13, and said cell body 13 forms the runner that supplies MEDIA FLOW to cross; The cell body 13 of the said the superiors is communicated with the MEDIA FLOW circulation passage 14 on outer sleeve 4 tops;
Closely cooperate between the inwall of the outer wall of said inner sleeve 4 and outer sleeve 11, to prevent that medium from by seepage between inner sleeve 4 and the outer sleeve 11, having reduced the effect of step-down; Said inner sleeve 4 also can be used as an integral body with outer sleeve 11;
As shown in Figure 2; On said spool 3, be provided with balancing orifice 15; Said balancing orifice 15 comprises the vertical balancing orifice that is arranged on spool 3 bottoms along the longitudinal center line of spool 3; Vertically the upper end of balancing orifice extends to spool 3 places that are positioned at gland 7 inside, and is communicated with the horizontal balancing orifice that radially is provided with along spool 3; Said balancing orifice 15 can make spool 3 tops and bottom be in pressure balance, and the unbalanced force that need overcome when working modulating valve is reduced to minimum, thereby can reduce to drive the drive unit specification of modulating valve proper functioning, reduces the whole cost of modulating valve.
The working procedure of the utility model: medium gets into valve body 1 by the medium import of valve body 1 bottom; Through can't be directly behind the valve seat 5 after runner 13 through inner sleeve 4 flows to valve; And can only walk around the separating part 16 on the spool 3, pass through in the alternate path that between the runner 13 of the annular flow port 12 of spool 3 and inner sleeve 4, forms; When the alternate path that forms between the truncated annulus communication port 12 on the spool 3 and the runner 13 of inner sleeve 4 passes through at medium, obtain pressure drop stage four times; Can confirm to do several annular flow ports on the spool 3 according to total step-down number of valve needs, need open how many laminar flow roads 13 on the inner sleeve 4.The utility model can reduce the flash distillation that valve in use sharply descends and produces because of pressure medium effectively, harmful phenomenons such as cavitation erosion, the working life of prolongation valve, the whole user cost of reduction valve.
Claims (7)
1. the multistage step-down cage guiding of a pressure-balancing type multi-section type modulating valve comprises valve body (1), and valve body (1) is provided with medium import and media outlet; Valve gap (2) is installed in upper end at said valve body (1), and at the set inside spool (3) of valve body (1), the lower end of spool (3) is the medium import; Inner chamber at said valve body (1) is installed valve seat (5), and sleeve assembly (6) is set on valve seat (5), in the top of sleeve assembly (6) gland (7) is set; It is characterized in that: said sleeve assembly (6) comprises the inner sleeve (4) that is set on the spool (3) and is set in the outer sleeve (11) on the inner sleeve (4); On the outer surface of the spool (3) that is positioned at valve body (1) inner chamber, be provided with a plurality of annular flow ports of circumferentially evenly arranging (12) along spool (3); Form separating part (16) between the adjacent communication port (12), this separating part (16) closely cooperates with the inwall of inner sleeve (4); The top of said outer sleeve (11) be provided with valve body (1) on the MEDIA FLOW circulation passage (14) that is communicated with of media outlet; On the barrel of said inner sleeve (4), be provided with the cell body (13) that distributes by layer, every layer is equipped with a plurality of cell bodies (13), and the cell body of the said the superiors (13) is communicated with the MEDIA FLOW circulation passage (14) on outer sleeve (4) top.
2. the multistage step-down cage guiding of pressure-balancing type multi-section type as claimed in claim 1 modulating valve is characterized in that: closely cooperate between the inwall of the outer wall of said inner sleeve (4) and outer sleeve (11).
3. the multistage step-down cage guiding of pressure-balancing type multi-section type as claimed in claim 1 modulating valve is characterized in that: said inner sleeve (4) and outer sleeve (11) are visual as a whole.
4. the multistage step-down cage guiding of pressure-balancing type multi-section type as claimed in claim 1 modulating valve; It is characterized in that: on said spool (3), be provided with balancing orifice (15); Said balancing orifice (15) comprises the vertical balancing orifice that is arranged on spool (3) bottom along the longitudinal center line of spool (3); The upper end of vertical balancing orifice extends to the spool (3) that is positioned at gland (7) inside and locates, and is communicated with the horizontal balancing orifice that radially is provided with along spool (3).
5. the multistage step-down cage guiding of pressure-balancing type multi-section type as claimed in claim 1 modulating valve is characterized in that: valve gap wound gasket (10) is installed in the joint at said valve gap (2) and valve body (1).
6. the multistage step-down cage guiding of pressure-balancing type multi-section type as claimed in claim 1 modulating valve is characterized in that: valve seat wound gasket (9) is installed in the joint at said valve seat (5) and valve body (1).
7. the multistage step-down cage guiding of pressure-balancing type multi-section type as claimed in claim 1 modulating valve is characterized in that: between said gland (7) and spool (3), balanced seal ring (8) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254770 CN202629322U (en) | 2012-05-31 | 2012-05-31 | Pressure-balance-type guided control valve of multi-section multi-stage decompression sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254770 CN202629322U (en) | 2012-05-31 | 2012-05-31 | Pressure-balance-type guided control valve of multi-section multi-stage decompression sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629322U true CN202629322U (en) | 2012-12-26 |
Family
ID=47382523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254770 Expired - Lifetime CN202629322U (en) | 2012-05-31 | 2012-05-31 | Pressure-balance-type guided control valve of multi-section multi-stage decompression sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705574A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Pressure balancing type multi-section and multi-stage depressurization sleeve guiding regulating valve |
| CN103671943A (en) * | 2013-12-07 | 2014-03-26 | 锦州高压阀门厂 | Balanced type multistage regulating valve |
-
2012
- 2012-05-31 CN CN 201220254770 patent/CN202629322U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705574A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Pressure balancing type multi-section and multi-stage depressurization sleeve guiding regulating valve |
| 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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |