CN202381708U - Intelligent full balanced type throttling stop valve - Google Patents
Intelligent full balanced type throttling stop valve Download PDFInfo
- Publication number
- CN202381708U CN202381708U CN2011205519312U CN201120551931U CN202381708U CN 202381708 U CN202381708 U CN 202381708U CN 2011205519312 U CN2011205519312 U CN 2011205519312U CN 201120551931 U CN201120551931 U CN 201120551931U CN 202381708 U CN202381708 U CN 202381708U
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- valve
- block head
- valve body
- spool
- sealing
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Abstract
The utility model relates to a stop valve, in particular to an intelligent full balanced type throttling stop valve, which comprises a valve body, a valve core, a valve rod in linkage with the valve core and a driving mechanism driving the valve rod. The valve core comprises a screw and a sealing plug connected with the screw, the screw is inserted in a shaft sleeve body and a tensioning plug screw and is capable of doing axial reciprocating movement along the shaft sleeve body and the tensioning plug screw, and the sealing plug is arranged to face media of the valve body and enters a channel. The sealing plug is composed of two connection blocks which are fixedly connected, and a sealing assembly is arranged between the sealing plug and the valve seat. The sealing assembly comprises an auxiliary sealing ring and an expandable sealing ring sleeved outside the auxiliary sealing ring, and a pre-guide hole is respectively arranged at the connection position of the two connection blocks located on two sides of the sealing assembly. By means of the technical scheme, the intelligent full balanced type throttling stop valve is good in sealing performance, convenient to open and close and reliable.
Description
Technical field
The utility model relates to a kind of stop valve, particularly a kind of intelligent full-balance throttling stop valve.
Background technique
Throttling stop valve has that volume is little, in light weight, the advantage of highi degree of accuracy, High Pressure Difference, is applicable to industries such as oil, chemical industry, power station.At present; The throttling stop valve that occurs on market and the data mainly by valve body, be located at spool in the valve body, form with the valve rod of spool interlock and the driving mechanism of actuate valve stem; Wherein, be worm and gear between spool and the valve rod and cooperate, valve body is provided with medium inlet passage, medium flow pass and is communicated with the connecting passage of medium inlet passage and medium flow pass; The medium inlet passage place of valve body is provided with valve seat; The sealing of fitting of spool and this valve seat makes the medium inlet passage of valve body and medium flow pass be closed shape, is provided with skeleton in the connecting passage of valve body, is installed with the confession spool on the skeleton and sets up and impel the spool can be along the sleeve assembly of valve body slippage.In use; When there were pressure reduction in the medium inlet passage of valve body and connecting passage, spool was not easy to open, and makes the switching of valve body receive certain influence; And the sealability between spool and the valve seat is relatively poor; The fluid that is entered in the valve body by the medium inlet passage implement to impact the seal ring on the spool all the time, and after using for a long time, the seal ring at this place is impaired easily and influence big sealability.
Summary of the invention
To the deficiency that existing technology exists, the utility model provides a kind of good airproof performance, has opened and closed convenient and reliable intelligent full-balance throttling stop valve.
Be to realize above-mentioned purpose, the utility model provides following technological scheme: a kind of intelligent full-balance throttling stop valve, include valve body, be located at spool in the valve body, with the valve rod of spool interlock and the driving mechanism of actuate valve stem; Being worm and gear between described spool and the valve rod cooperates; Valve body is provided with medium inlet passage, medium flow pass and is communicated with the connecting passage of medium inlet passage and medium flow pass; The medium inlet passage place of valve body is provided with valve seat; Spool and this valve seat are fitted to seal and are made the medium inlet passage of valve body and medium flow pass be closed shape; Be provided with skeleton in the connecting passage of valve body, be installed with on the skeleton and supply spool to set up and make the spool can be along the sleeve assembly of valve body slippage, described sleeve assembly includes sleeve body that is set up on the skeleton and the tension plug screw that is connected with sleeve body; Sleeve body and tension plug screw are between skeleton and are tightly connected; It is characterized in that: described spool includes screw rod that is connected with valve rod and the block head that is connected with screw rod, and screw rod is inserted in sleeve body and the tension plug screw and can axially moves back and forth along sleeve body and tension plug screw, and described block head is provided with towards the medium inlet passage of valve body; Be provided with black box between the outer wall of said block head and the valve seat; Be provided with seal ring between block head and the skeleton; Described block head is made up of the contiguous block of two fixed connections; Black box between block head and the valve seat is located at the joining place of two contiguous blocks, and the sealing assembly includes auxiliary seal ring and be sheathed on the outer expandable seal circle of auxiliary seal ring, and the both sides that the joining place of two contiguous blocks is positioned at black box are respectively equipped with the connecting passage conducting of an end and valve body; The pilot hole of the gap conducting of the other end and two contiguous block joining places, the internal diameter of auxiliary seal ring fits in the gap location of two contiguous block joining places.
Adopt technique scheme; Through the expandable seal circle that the block head place and the black box between the valve seat of spool are arranged to auxiliary seal ring and conflicted by auxiliary seal ring; In using title; Medium enters into the gap location of two contiguous blocks through the pilot hole at block head two contiguous block places, because the internal diameter of auxiliary seal ring is fitted in two contiguous block gap locations, can impacts to auxiliary seal ring and compresses so enter into medium in the gap; At this moment; Just can expand towards valve seat or skeleton after the expandable seal circle of conflicting with auxiliary seal ring receives compressing of auxiliary seal ring, make the sealing between itself and valve seat and the skeleton more tight, guarantee the sealing between block head and valve seat and the skeleton; And block head with screw rod along the valve body slippage, can guarantee that black box avoids the direct impact of medium, prolonged the working life of black box.
The utility model further is set to: block head is provided with some pod apertures towards the end face of medium inlet passage, sleeve body and tension be provided with in the plug screw with block head on the water conservancy diversion cavity that is communicated with of pod apertures.
Adopt technique scheme, when medium is got into by the medium inlet passage of valve body, at first can enter into through the pod apertures of block head in the water conservancy diversion cavity, medium can be filled whole guide channel, makes valve inner pressure reduction obtain balance, has made things convenient for the unlatching of valve body or closes.
The utility model further is set to: also be provided with the alloy sealing block between block head and the valve seat.
Adopt technique scheme, block head and valve seat also are provided with the alloy sealing block in sealing part when implementing soft seal through black box, make between block head and the valve seat and form double seal, have further guaranteed sealing effect.
The utility model further is set to: the cross section of expandable seal circle in the form of a ring, its cross section is trapezoidal, wherein outer wall is less than inwall.
Adopt technique scheme, be provided with the sealing that is beneficial between expandable seal circle and valve seat and the skeleton like this.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment's a closed condition schematic representation;
Fig. 2 is the I portion enlarged diagram of Fig. 1;
Fig. 3 is the utility model embodiment's an opening state schematic representation;
Fig. 4 is the structural representation of expandable seal circle among the utility model embodiment.
Embodiment
Like Fig. 1-a kind of intelligent full-balance throttling stop valve shown in Figure 4, include valve body 1, be located at spool 2 in the valve body 1, with the valve rod 3 of spool 2 interlocks and the driving mechanism 4 of actuate valve stem 3, driving mechanism 4 is a YE, also can be handle certainly; Being worm and gear between spool 2 and the valve rod 3 cooperates; Valve body 1 is provided with medium inlet passage 11, medium flow pass 12 and is communicated with the connecting passage 13 of medium inlet passage 11 and medium flow pass 12; Medium inlet passage 11 places of valve body 1 are provided with valve seat 6, and spool 2 makes the medium inlet passage 11 of valve body 1 be closed shape with medium flow pass 12 with these valve seat 6 applying sealings, otherwise; Spool 2 separates with valve seat 6, and then valve body is for opening shape; Be provided with skeleton 14 in the connecting passage 13 of valve body 1; Be installed with on the skeleton 14 and supply spool 2 to set up and make the spool 2 can be along the sleeve assembly 5 of valve body 1 slippage; The tension plug screw 52 that sleeve assembly 5 includes the sleeve body that is set up on the skeleton 14 51 and is connected with sleeve body 51, sleeve body 51 and strain plug screw 52 and between skeleton 14, be and be tightly connected need to prove; Be provided with some seal rings between sleeve body 51 and tension plug screw 52 and the skeleton 14, be tightly connected thereby constitute.Spool 2 includes screw rod 21 that is connected with valve rod 3 and the block head 22 that is connected with screw rod 21; Screw rod 21 is inserted in sleeve body 51 and the tension plug screw 52 and can axially moves back and forth along sleeve body 51 and tension plug screw 52, and block head 22 is provided with towards the medium inlet passage 11 of valve body 1; Be provided with black box 7 between the outer wall of block head 22 and the valve seat 6, be provided with seal ring 141 between block head 22 and the skeleton 14.Block head 22 is made up of the contiguous block 221 of two fixed connections; Black box 7 between block head 22 and the valve seat 6 is located at the joining place of two contiguous blocks 221; And sealing assembly 7 includes auxiliary seal ring 71 and is sheathed on the expandable seal circle 72 outside the auxiliary seal ring 71, and wherein, the cross section of expandable seal circle 72 in the form of a ring; Its cross section is trapezoidal, and wherein outer wall 721 is less than inwall 722.The both sides that the joining place of two contiguous blocks 221 is positioned at black box 7 are respectively equipped with connecting passage 13 conductings of an end and valve body 1; The pilot hole 223 of gap 222 conductings of the other end and two contiguous blocks, 221 joining places, the internal diameter of auxiliary seal ring 71 fit in 222 places, gap of two contiguous blocks, 221 joining places.In the such scheme; Through the expandable seal circle 72 that block head 22 places and the black box 7 between the valve seat 1 of spool 2 are arranged to auxiliary seal ring 71 and conflicted by auxiliary seal ring 71; In using title; Medium enters into 222 places, gap of two contiguous blocks 221 through the pilot hole 223 at 22 liang of contiguous block 221 places of block head, because the internal diameter of auxiliary seal ring 71 is fitted in 222 places, two contiguous blocks, 221 gaps, can impacts to auxiliary seal ring 71 and compresses so enter into media in the gap 222; At this moment; Just can expand towards valve seat 6 or skeleton 14 after the expandable seal circle 72 of conflicting with auxiliary seal ring 71 receives compressing of auxiliary seal ring 71, make the sealing between itself and valve seat 6 and the skeleton 14 more tight, guarantee the sealing between block head 22 and valve seat 6 and the skeleton 14; And block head 22 with screw rod 21 along valve body 1 slippage, can guarantee that black box 7 avoids the direct impact of medium, prolonged the working life of black box 7.
In the utility model embodiment; In order to make the pressure reduction in the valve body 1 obtain balance; Make things convenient for the unlatching of valve body 1 or close with this; Block head 22 is provided with some pod apertures 224 towards the end face of medium inlet passage 11, sleeve body 51 and tension be provided with in the plug screw 52 with block head 22 on the water conservancy diversion cavity 8 that is communicated with of pod apertures 224.The space that the water conservancy diversion cavity 8 at this place is interconnected for block head 22, sleeve body 51 and tension plug screw 52 inside.Though in the technique scheme to have guaranteed the sealing between block head 22 and the valve seat 6; In order further to guarantee sealability; Also be provided with alloy sealing block 9 between block head 22 and the valve seat 6, make between block head 22 and the valve seat 6 not only to have soft seal, hard sealing is arranged but also possess.
Claims (5)
1. intelligent full-balance throttling stop valve, include valve body, be located at spool in the valve body, with the valve rod of spool interlock and the driving mechanism of actuate valve stem; Being worm and gear between described spool and the valve rod cooperates; Valve body is provided with medium inlet passage, medium flow pass and is communicated with the connecting passage of medium inlet passage and medium flow pass; The medium inlet passage place of valve body is provided with valve seat; Spool and this valve seat are fitted to seal and are made the medium inlet passage of valve body and medium flow pass be closed shape; Be provided with skeleton in the connecting passage of valve body, be installed with on the skeleton and supply spool to set up and make the spool can be along the sleeve assembly of valve body slippage, described sleeve assembly includes sleeve body that is set up on the skeleton and the tension plug screw that is connected with sleeve body; Sleeve body and tension plug screw are between skeleton and are tightly connected; It is characterized in that: described spool includes screw rod that is connected with valve rod and the block head that is connected with screw rod, and screw rod is inserted in sleeve body and the tension plug screw and can axially moves back and forth along sleeve body and tension plug screw, and described block head is provided with towards the medium inlet passage of valve body; Be provided with black box between the outer wall of said block head and the valve seat; Be provided with seal ring between block head and the skeleton; Described block head is made up of the contiguous block of two fixed connections; Black box between block head and the valve seat is located at the joining place of two contiguous blocks, and the sealing assembly includes auxiliary seal ring and be sheathed on the outer expandable seal circle of auxiliary seal ring, and the both sides that the joining place of two contiguous blocks is positioned at black box are respectively equipped with the connecting passage conducting of an end and valve body; The pilot hole of the gap conducting of the other end and two contiguous block joining places, the internal diameter of auxiliary seal ring fits in the gap location of two contiguous block joining places.
2. intelligent full-balance throttling stop valve according to claim 1; It is characterized in that: described block head is provided with some pod apertures towards the end face of medium inlet passage, sleeve body and tension be provided with in the plug screw with block head on the water conservancy diversion cavity that is communicated with of pod apertures.
3. intelligent full-balance throttling stop valve according to claim 1 and 2 is characterized in that: also be provided with the alloy sealing block between described block head and the valve seat.
4. intelligent full-balance throttling stop valve according to claim 1 and 2 is characterized in that: the cross section of described expandable seal circle in the form of a ring, its cross section is trapezoidal, wherein outer wall is less than inwall.
5. intelligent full-balance throttling stop valve according to claim 3 is characterized in that: the cross section of described expandable seal circle in the form of a ring, its cross section is trapezoidal, wherein outer wall is less than inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519312U CN202381708U (en) | 2011-12-26 | 2011-12-26 | Intelligent full balanced type throttling stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519312U CN202381708U (en) | 2011-12-26 | 2011-12-26 | Intelligent full balanced type throttling stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381708U true CN202381708U (en) | 2012-08-15 |
Family
ID=46630212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205519312U Expired - Fee Related CN202381708U (en) | 2011-12-26 | 2011-12-26 | Intelligent full balanced type throttling stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185145A (en) * | 2013-03-21 | 2013-07-03 | 山东益龙阀门有限责任公司 | Axial flow type single-seat adjusting valve |
-
2011
- 2011-12-26 CN CN2011205519312U patent/CN202381708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185145A (en) * | 2013-03-21 | 2013-07-03 | 山东益龙阀门有限责任公司 | Axial flow type single-seat adjusting valve |
| CN103185145B (en) * | 2013-03-21 | 2015-04-01 | 山东益龙阀门有限责任公司 | Axial flow type single-seat adjusting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |