CN211875110U - High-temperature high-pressure integrated straight-flow stop valve - Google Patents
High-temperature high-pressure integrated straight-flow stop valve Download PDFInfo
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- CN211875110U CN211875110U CN201922165744.XU CN201922165744U CN211875110U CN 211875110 U CN211875110 U CN 211875110U CN 201922165744 U CN201922165744 U CN 201922165744U CN 211875110 U CN211875110 U CN 211875110U
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Abstract
The invention belongs to the technical field of stop valves, and particularly relates to a high-temperature high-pressure integrated straight-flow stop valve which adopts an integrated continuous forging structure of a valve body and a support and comprises a valve body, a valve clack arranged in the valve body, a valve rod, a valve cap and a driving mechanism for driving the valve rod to do lifting motion, wherein the valve clack is arranged at the lower end part of the valve rod, and the valve cap is positioned at the upper end part of the valve rod and used for limiting the lifting distance of; be equipped with the packing layer in the valve body, the valve rod periphery is located to the packing layer, one side of packing layer is provided with the clamp plate that packs, the clamp plate cover that packs is located the valve rod and is connected with the valve body is detachable, the utility model discloses high temperature resistant high-pressure steam does not have the leakage point between support and the valve body, guarantees the safety of equipment and pipeline reason, greatly strengthens the life of valve, guarantees sealed reliability.
Description
Technical Field
The invention belongs to the technical field of stop valves, and particularly relates to a high-temperature and high-pressure integrated straight-flow stop valve.
Background
The steam pipeline control system in the fields of power stations, metallurgy, chemical industry, oil fields and the like is widely applied. However, in the high-temperature high-pressure steam pipeline, water particles in the steam can bring huge impact damage to the valve under the driving of high-speed steam. Especially in the moment that the valve is opened and closed, the velocity of flow increases instantaneously, and the water impact that causes sealed face is very big, erodees very seriously, and fluid resistance is big when current valve is opened and closed simultaneously, and sealed face erodees seriously, and it is damaged seriously to be erodeed to long-time back sealed face, and life is short, and when pressure, temperature were too high in addition, caused the valve easily to leak outward, and sealed between valve body and the support is leaked more easily, produced extremely hidden danger for the safety of production and pipeline.
Traditional stop valve, the intermediate junction leaks easily, and life is short.
Disclosure of Invention
In order to solve the problems, the invention provides a high-temperature and high-pressure integrated straight-flow stop valve.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the high-temperature high-pressure integrated straight-flow stop valve adopts a valve body and support integrated continuous forging structure, and comprises a valve body, a valve clack arranged inside the valve body, a valve rod, a valve cap and a driving mechanism for driving the valve rod to do lifting motion, wherein the valve clack is arranged at the lower end part of the valve rod, and the valve cap is positioned at the upper end part of the valve rod and used for limiting the lifting distance of the valve rod;
the valve comprises a valve body and is characterized in that a packing layer is arranged in the valve body and is arranged on the periphery of the valve rod, a packing pressing plate is arranged on one side of the packing layer, and the valve rod is sleeved with the packing pressing plate and is detachably connected with the valve body.
Preferably, actuating mechanism includes bearing, striking piece, striking hand wheel and valve-stem nut, valve-stem nut cover locate the valve rod upper end and with valve rod threaded connection, the bearing housing is established on valve-stem nut, and is fixed in the valve body upper end through the bearing gland, the striking piece is fixed in valve-stem nut, the striking hand wheel is located between valve cap and the valve body, and can rotate along the valve rod circumferencial direction.
Preferably, the packing layer adopts integrated configuration, including packing pad, graphite packing, packing spacer ring and packing clamping ring, packing pad, graphite packing, packing spacer ring, packing clamping ring from the bottom up set gradually.
Preferably, the flow passage of the valve body is in a 5-degree Y-shaped structure.
Preferably, the valve clack adopts a resistance reducing structure.
The technical scheme of the invention has the following beneficial technical effects:
1. the valve body and the bracket are integrally forged, high-temperature and high-pressure steam is resisted, no leakage point exists between the bracket and the valve body, and the safety of equipment and management is ensured;
2. the driving mechanism consisting of the bearing, the impact block and the impact hand wheel is adopted, so that the valve is convenient to open and close and labor is saved;
3. the valve clack adopts a resistance reducing structure, so that the damage of fluid to the valve clack is reduced, and the service life of the valve is greatly prolonged;
4. the packing adopts a combined structure, and the sealing reliability is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numerals:
1. a main body; 2. a valve flap; 3. connecting steel balls; 4. a valve stem; 5. a filler pad; 6. graphite filler; 7. a packing spacer ring; 8. packing and pressing a ring; 9. a packing press plate; 10. a bearing; 11 a valve stem nut; 12. a bearing gland; 13. an impact block; 14. impacting a hand wheel; 15. a bonnet; 16. a fixing hole; 17. and (4) a swing bolt.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, the high-temperature high-pressure integrated straight-flow stop valve includes a valve body 1, a valve flap 2 disposed inside the valve body 1, a valve rod 4, a bonnet 15, and a driving mechanism for driving the valve rod 4 to perform a lifting motion, wherein the valve flap 2 is disposed at a lower end of the valve rod 4, and the bonnet 15 is disposed at an upper end of the valve rod 4 for limiting a lifting distance of the valve rod 4; the improved valve is characterized in that a packing layer is arranged in the valve body 1 and is arranged on the periphery of the valve rod 4, a packing pressing plate 9 is arranged on one side of the packing layer, and the valve rod 4 is sleeved with the packing pressing plate 9 and is detachably connected with the valve body 1.
Preferably, a fixing hole 16 is provided at an upper end of the valve body 1 so that the valve body 1 is conveniently fixed to other facilities.
In the present exemplary embodiment, the packing plate 9 is fixed to the valve body 1 by means of pivot bolts 17.
In one embodiment, the connection between the valve clack 2 and the valve rod 4 is connected by a connecting steel ball 3.
In one embodiment, actuating mechanism includes bearing 10, striking piece 13, striking hand wheel 14 and stem nut 11, stem nut 11 cover locate valve rod 4 upper end and with valve rod 4 threaded connection, bearing 10 cover is established on stem nut 11, and is fixed in the valve body 1 upper end through bearing cover 12, striking piece 13 is fixed in stem nut 11, striking hand wheel 14 is located between valve cap 15 and the valve body 1, and can rotate along the valve rod 4 circumferencial direction.
As an example, the bonnet 15 may be threadably secured to the upper end of the stem nut 11. That is, the upper end of the stem nut 11 is provided with external threads, and the inner wall of the valve 15 is provided with internal threads.
In one embodiment, the packing layer adopts a combined structure and comprises a packing pad 5, a graphite packing 6, a packing spacer ring 7 and a packing press ring 8, wherein the packing pad 5, the graphite packing 6, the packing spacer ring 7 and the packing press ring 8 are sequentially arranged from bottom to top, so that the sealing reliability is ensured.
In one embodiment, the flow passage of the valve body 1 is in a 5-degree Y-shaped structure, and further, the bulk flow passage is in a large-capacity structure twice as large as the flow passage of the pipeline and in a Y-shaped structure with the flow passage of 5 degrees, so that the influence of resistance is reduced.
In one embodiment, the valve clack 2 adopts a resistance reduction structure, so that damage of fluid to the valve clack 2 is reduced, and the service life of the valve is greatly prolonged.
In one embodiment, a structure in which the valve body 1 and the bracket are integrally forged is adopted.
The working principle is as follows: the striking hand wheel 14 is rotated to make the striking hand wheel 14 strike the striking block 13, because the striking block 13 is fixed in the valve rod nut 11, the upper end of the valve rod 4 is sleeved with the valve rod nut 11 and is in threaded connection with the valve rod 4, so that the valve rod 4 is driven to move upwards or downwards, the valve rod 4 is driven to drive the valve clack 2 to lift upwards or stop downwards, the whole channel is opened or closed, and high-temperature and high-pressure media are injected or cut.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The high-temperature high-pressure integrated straight-flow stop valve is characterized by comprising a valve body (1), a valve clack (2) arranged inside the valve body (1), a valve rod (4), a valve cap (15) and a driving mechanism used for driving the valve rod (4) to do lifting motion, wherein the valve clack (2) is arranged at the lower end part of the valve rod (4), and the valve cap (15) is positioned at the upper end part of the valve rod (4) and used for limiting the lifting distance of the valve rod (4);
a packing layer is arranged in the valve body (1), the packing layer is arranged on the periphery of the valve rod (4), a packing pressing plate (9) is arranged on one side of the packing layer, and the packing pressing plate (9) is sleeved on the valve rod (4) and is detachably connected with the valve body (1);
a valve body (1) and a bracket are integrally and continuously forged.
2. The integrative straight-flow stop valve of high temperature high pressure according to claim 1, characterized in that, actuating mechanism includes bearing (10), striking piece (13), striking hand wheel (14) and valve-stem nut (11), valve-stem nut (4) upper end and with valve rod (4) threaded connection are located to valve-stem nut (11) cover, bearing (10) cover is established on valve-stem nut (11), and is fixed in valve body (1) upper end through bearing cover (12), striking piece (13) are fixed in valve-stem nut (11), striking hand wheel (14) are located between valve cap (15) and valve body (1), and can rotate along valve rod (4) circumferencial direction.
3. The high-temperature high-pressure integrated straight-flow stop valve according to claim 1, wherein the packing layer is of a combined structure and comprises a packing pad (5), graphite packing (6), a packing spacer ring (7) and a packing press ring (8), and the packing pad (5), the graphite packing (6), the packing spacer ring (7) and the packing press ring (8) are sequentially arranged from bottom to top.
4. A high-temperature high-pressure integral straight-through shut-off valve according to claim 1, characterized in that the flow channel of the valve body (1) is of a 5 ° Y-shaped configuration.
5. A high-temperature high-pressure integral straight-flow stop valve according to claim 1, characterized in that the valve flap (2) adopts a resistance reducing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165744.XU CN211875110U (en) | 2019-12-05 | 2019-12-05 | High-temperature high-pressure integrated straight-flow stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165744.XU CN211875110U (en) | 2019-12-05 | 2019-12-05 | High-temperature high-pressure integrated straight-flow stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211875110U true CN211875110U (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922165744.XU Active CN211875110U (en) | 2019-12-05 | 2019-12-05 | High-temperature high-pressure integrated straight-flow stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211875110U (en) |
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2019
- 2019-12-05 CN CN201922165744.XU patent/CN211875110U/en active Active
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High temperature and high pressure integrated DC globe valve Effective date of registration: 20220729 Granted publication date: 20201106 Pledgee: Funing County sub branch of China Postal Savings Bank Co.,Ltd. Pledgor: Yancheng Suhao Valve Industry Co.,Ltd. Registration number: Y2022980011587 |