CN211715803U - Soft and hard double sealing structure of regulating valve - Google Patents
Soft and hard double sealing structure of regulating valve Download PDFInfo
- Publication number
- CN211715803U CN211715803U CN201922022773.0U CN201922022773U CN211715803U CN 211715803 U CN211715803 U CN 211715803U CN 201922022773 U CN201922022773 U CN 201922022773U CN 211715803 U CN211715803 U CN 211715803U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- soft
- metal
- seat
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of fluid, in particular to a soft and hard double sealing structure of a regulating valve, a valve core and valve rod component passes through a valve cover and extends into the valve cavity of the valve body component, the valve cavity of the valve body component is internally provided with an upper sleeve, a lower sleeve and a metal valve seat from top to bottom in sequence, a soft sealing ring is arranged between the lower sleeve and the metal valve seat, the inner wall of the metal valve seat and the inner wall of the soft sealing ring are contacted with the outer side wall of the valve core and valve rod component, a valve core is contacted with the soft sealing ring and the metal valve seat simultaneously during sealing to form double sealing, because the soft sealing ring and the metal valve seat are contacted with the valve core and valve rod component simultaneously, the double sealing structure exists no matter whether medium flows in, and the valve core and valve rod component, the metal valve seat and the lower sleeve simultaneously press the soft sealing ring in a fixed space to fix, meanwhile, the soft sealing ring is protected from being exposed in a large area and suffering from serious erosion corrosion of the medium.
Description
Technical Field
The utility model relates to the technical field of fluid, specific saying is a soft, hard dual seal structure of governing valve.
Background
The soft sealing element of the common soft sealing regulating valve is arranged on a valve model, a valve core is divided into two parts, and the soft sealing element is clamped between the two parts by threads. The structure is easily damaged by hard particle substances due to the characteristic of the soft sealing material, and the valve core part is very troublesome to maintain and replace due to thread seizure after the damage.
The prior patent with the publication number of CN 20924291, namely 'large-caliber regulating valve with soft sealing structure' discloses a large-caliber regulating valve with a soft sealing structure, which realizes soft sealing by utilizing a balance sealing ring expanded by entering a medium, thereby realizing the effect of soft and hard double sealing. The soft sealing is based on the premise that a medium enters, and the reason for the soft sealing is that the balance sealing ring absorbs the expansion of the medium. Therefore, the soft sealing effect can not be achieved under the condition of no medium, and the balance sealing ring absorbs the medium for a long time and is easy to corrode.
For this purpose, a sealing structure is provided which has a soft and hard double sealing characteristic in any case.
Disclosure of Invention
The utility model discloses broken through prior art's a difficult problem, designed a seal structure that all has soft, hard dual seal characteristic under any circumstance.
In order to achieve the purpose, the utility model discloses a soft, hard double seal structure of governing valve, including last sleeve, balanced sealing ring uide bushing, balanced sealing ring, case valve rod subassembly, lower sleeve, metal disk seat, valve body subassembly, inside the case valve rod subassembly passed the valve gap and stretched into the valve pocket of valve body subassembly, its characterized in that: the valve cavity of the valve body assembly is internally provided with an upper sleeve, a lower sleeve and a metal valve seat from top to bottom in sequence, a soft sealing ring is arranged between the lower sleeve and the metal valve seat, and the inner wall of the metal valve seat and the inner wall of the soft sealing ring are both contacted with the outer side wall of the valve core and valve rod assembly.
The valve gap lid is established in the top of valve body subassembly, and the valve gap utilizes the bolt to fix mutually with the valve body subassembly, and the position that the valve gap contacted with valve body subassembly, upper sleeve all is equipped with sealing washer one, is equipped with balanced sealing ring and balanced sealing ring uide bushing between upper sleeve and the lower sleeve, and balanced sealing ring uide bushing is located the top of balanced sealing ring, and the position that the metal disk seat contacted with the valve body subassembly then is equipped with sealing washer two.
The metal valve seat is provided with a groove at a position close to the valve core and valve rod assembly, one part of the soft sealing ring is embedded in the groove, the other part of the soft sealing ring is laid on the metal valve seat and is contacted with the outer wall of the valve core and valve rod assembly, and the lower sleeve tightly presses the soft sealing ring in the metal valve seat.
Compared with the prior art, case and soft sealing washer during sealed, the metal disk seat contacts simultaneously, form double seal, because the soft sealing washer, the metal disk seat contacts with case valve rod subassembly simultaneously, the event whether there is the medium to flow into all can have double seal structure to exist, and case valve rod subassembly when valve seal, the metal disk seat, lower sleeve compresses tightly the soft sealing washer in fixed space simultaneously, it is fixed with its deformation range, prevented to produce the cold flow because of the extrusion is outstanding, protect the soft sealing washer to avoid the large tracts of land to expose and receive the serious erosion and corrosion of medium simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial enlarged view of the present invention.
Fig. 3 is a schematic diagram of the position structure of the present invention in the specific implementation.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1~3, the utility model discloses a soft, hard double seal structure of governing valve, including upper sleeve 8, balanced sealing ring uide bushing 7, balanced sealing ring 6, case valve rod subassembly 5, lower sleeve 4, metal disk seat 2, valve body subassembly 1, inside case valve rod subassembly 5 passed valve gap 9 and stretched into the valve pocket of valve body subassembly 1, the valve pocket of valve body subassembly 1 is inside to be equipped with upper sleeve 8, lower sleeve 4, metal disk seat 2 from top to bottom in proper order, is equipped with soft sealing washer 3 between lower sleeve 4 and the metal disk seat 2, the inner wall of soft sealing washer 3 all contact with case valve rod subassembly 5's lateral wall.
The utility model discloses well valve gap 9 lid is established in the top of valve body subassembly 1, valve gap 9 utilizes the bolt to fix mutually with valve body subassembly 1, valve gap 9 and valve body subassembly 1, the position that upper sleeve 8 contacted all is equipped with sealing washer one 10, upper sleeve 8 and lower sleeve 4 between be equipped with balanced sealing ring 6 and balanced sealing ring uide bushing 7, balanced sealing ring uide bushing 7 is located balanced sealing ring 6's top, the position that metal valve seat 2 and valve body subassembly 1 contacted then is equipped with sealing washer two 11, make the inside of whole governing valve form seal structure, prevent the outflow of medium.
The utility model discloses well metal disk seat 2 is close to case valve rod assembly 5's position and is equipped with the recess, the partly of soft sealing washer 3 inlays to be established in the recess, another part of soft sealing washer 3 then is laid on metal disk seat 2 and contacts with case valve rod assembly 5's outer wall, lower sleeve 4 closely presses soft sealing washer 3 to be established in metal disk seat 2, because soft sealing washer 3, metal disk seat 2 contacts with case valve rod assembly 5 simultaneously, the event whether there is the medium to go into all to have dual seal structure to exist, and case valve rod assembly 5 when valve seal, metal disk seat 2, lower sleeve 4 compresses tightly soft sealing washer 3 in fixed space simultaneously, it is fixed with its deformation range, prevented to produce the cold flow because of the extrusion is outstanding, protect soft sealing washer 3 to avoid exposing and receive the serious erosion and corrosion of medium by a large scale simultaneously.
In concrete implementation, soft sealing ring 3 has formed soft sealing protection 31 with the contact of case valve rod assembly 1, and metal disk seat 2 has formed hard sealing protection 21 with the contact of case valve rod assembly 1 for adopt the utility model discloses a governing valve has double sealing protection.
When the soft sealing ring 3 is damaged, a certain sealing capacity can still be ensured because of the existence of the hard seal formed by the metal valve seat 2 and the valve core and valve rod component 1.
When the metal valve seat 2 and the valve core and valve rod component 1 are abraded and gapped due to long-time friction, certain sealing capacity can be ensured due to the existence of soft sealing.
And the utility model discloses a double seal all can use under any circumstance, and do not confine to whether there is the medium to exist, and case valve rod subassembly 5 when valve seal, metal disk seat 2, lower sleeve 4 compresses tightly soft sealing washer 3 simultaneously in fixed space, and is fixed with its deformation range, has prevented to produce the cold flow because of the extrusion is outstanding, and protection soft sealing washer 3 avoids the large tracts of land to expose and receives the serious erosion and corrosion of medium simultaneously, has prolonged the life of soft sealing washer 3, thereby has prolonged the live time of whole governing valve, and the utility model provides a soft sealing washer 3 changes and maintains swiftly convenient.
Claims (3)
1. The utility model provides a soft, hard double seal structure of governing valve, includes sleeve (8), balanced sealing ring uide bushing (7), balanced sealing ring (6), case valve rod subassembly (5), lower sleeve (4), metal disk seat (2), valve body subassembly (1), inside valve cavity that valve case valve rod subassembly (5) passed valve gap (9) and stretched into valve body subassembly (1), its characterized in that: the valve cavity of the valve body assembly (1) is internally provided with an upper sleeve (8), a lower sleeve (4) and a metal valve seat (2) from top to bottom in sequence, a soft sealing ring (3) is arranged between the lower sleeve (4) and the metal valve seat (2), and the inner wall of the metal valve seat (2) and the inner wall of the soft sealing ring (3) are all contacted with the outer side wall of the valve core and valve rod assembly (5).
2. The soft and hard double seal structure of a regulator valve according to claim 1, wherein: valve gap (9) lid is established in the top of valve body subassembly (1), and valve gap (9) utilize the bolt to fix mutually with valve body subassembly (1), and valve gap (9) and valve body subassembly (1), the position that upper sleeve (8) contacted all is equipped with sealing washer (10), is equipped with balanced sealing ring (6) and balanced sealing ring uide bushing (7) between upper sleeve (8) and lower sleeve (4), and balanced sealing ring uide bushing (7) are located the top of balanced sealing ring (6), and the position that metal disk seat (2) and valve body subassembly (1) contacted then is equipped with sealing washer two (11).
3. The soft and hard double seal structure of a regulator valve according to claim 1, wherein: the position of the metal valve seat (2) close to the valve core and valve rod assembly (5) is provided with a groove, one part of the soft sealing ring (3) is embedded in the groove, the other part of the soft sealing ring (3) is laid on the metal valve seat (2) and is contacted with the outer wall of the valve core and valve rod assembly (5), and the lower sleeve (4) tightly presses the soft sealing ring (3) in the metal valve seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022773.0U CN211715803U (en) | 2019-11-21 | 2019-11-21 | Soft and hard double sealing structure of regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022773.0U CN211715803U (en) | 2019-11-21 | 2019-11-21 | Soft and hard double sealing structure of regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715803U true CN211715803U (en) | 2020-10-20 |
Family
ID=72815763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922022773.0U Active CN211715803U (en) | 2019-11-21 | 2019-11-21 | Soft and hard double sealing structure of regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715803U (en) |
-
2019
- 2019-11-21 CN CN201922022773.0U patent/CN211715803U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211715803U (en) | Soft and hard double sealing structure of regulating valve | |
| CN205173525U (en) | Submarine pipeline pair gate valve | |
| CN203431212U (en) | Sleeve adjusting valve with energy storage seal ring | |
| CN106641320B (en) | Valve rod sealing structure of underwater ball valve | |
| CN203686288U (en) | Flow-limiting valve | |
| CN103410994A (en) | Sand-proofing valve | |
| CN205446788U (en) | A sealing device for valve | |
| CN107314141B (en) | Straight-through valve and method for controlling water pressure by same | |
| CN205207786U (en) | Silence noise -eliminated check valve | |
| CN202360827U (en) | Large-flow safety valve for compound sealing | |
| CN213271105U (en) | Double-channel metal hard sealing ball valve | |
| CN206268498U (en) | A kind of valve seat construction of bidirectional metal hard-sealing floating ball valve | |
| CN204647410U (en) | A kind of can the MULTIPLE COMPOSITE seal valve seat structure of greasing | |
| CN203442183U (en) | Anti-sand valve | |
| CN205978583U (en) | Ball valve that valve seat seal performance is good | |
| CN216279478U (en) | Thin type shearing valve | |
| CN207621437U (en) | A kind of novel full copper safety valve | |
| CN216479042U (en) | Inflatable spring type valve | |
| CN201496604U (en) | Composite sealing ball valve | |
| CN209762277U (en) | Hard-seal zero-leakage bidirectional pressure butterfly valve | |
| CN201047463Y (en) | Valve stem nut having composite seal function | |
| CN214999635U (en) | Double-sealing safety valve | |
| CN216519838U (en) | Actuating mechanism and valve connection structure with water leakage groove design | |
| US1964782A (en) | Lubricated plug valve | |
| CN212226100U (en) | Ceramic sealing vertical check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |