CN221323293U - Cast iron electric regulating valve - Google Patents
Cast iron electric regulating valve Download PDFInfo
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- CN221323293U CN221323293U CN202323291061.1U CN202323291061U CN221323293U CN 221323293 U CN221323293 U CN 221323293U CN 202323291061 U CN202323291061 U CN 202323291061U CN 221323293 U CN221323293 U CN 221323293U
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Abstract
本实用新型涉及控制阀门结构技术领域，具体公开了一种铸铁电动调节阀，包括铸铁阀体，铸铁阀体的左边开设置有P1口，铸铁阀体的右边开设置有P2口，P1口和P2口之间设置有用于连通P1口和P2口之间的通道孔，通道孔上端上下活动连接流量调节装置，流量调节装置包括阀座、阀盖组合、阀锥体、阀锥、阀轴、密封函组件，阀盖组合固定连接在铸铁阀体的上端，阀盖组合的中心滑动连接阀轴的上端，阀轴的下端固定连接阀锥体，阀锥体的下端固定连接阀锥。阀盖组合内壁对阀锥体具有导向作用，该导向配合可以保证阀锥体、阀锥、阀锥聚四氟垫片组合的一体式阀锥，在流体流速变化时震动较小，进而保证了密封函组件等组件的使用寿命。
The utility model relates to the technical field of control valve structure, and specifically discloses a cast iron electric regulating valve, including a cast iron valve body, a P1 port is provided on the left side of the cast iron valve body, a P2 port is provided on the right side of the cast iron valve body, a channel hole for connecting the P1 port and the P2 port is provided between the P1 port and the P2 port, and a flow regulating device is movably connected to the upper end of the channel hole, and the flow regulating device includes a valve seat, a valve cover assembly, a valve cone, a valve cone, a valve shaft, and a sealing box assembly, the valve cover assembly is fixedly connected to the upper end of the cast iron valve body, the center of the valve cover assembly is slidably connected to the upper end of the valve shaft, the lower end of the valve shaft is fixedly connected to the valve cone, and the lower end of the valve cone is fixedly connected to the valve cone. The inner wall of the valve cover assembly has a guiding effect on the valve cone, and the guiding cooperation can ensure that the integrated valve cone composed of the valve cone, the valve cone, and the valve cone polytetrafluoro gasket has less vibration when the fluid flow rate changes, thereby ensuring the service life of the sealing box assembly and other components.
Description
Technical Field
The utility model relates to the technical field of control valves, in particular to a cast iron electric regulating valve.
Background
The regulating valve controls the flow, pressure and temperature of the fluid to meet the requirements of the system and ensure the balance, stability and safe operation of the system. Compared with the traditional pneumatic regulating valve, the pneumatic regulating valve has the advantages of energy conservation, environmental protection, quick and convenient installation and the like. Electrically operated control valves are important actuator meters in industrial automation process control. With the increasing degree of automation in the industrial fields, the method is increasingly applied to various industrial production fields. Regulating valves are the most widely used version of the final control element. For a conventional single seat regulator valve, two pressures can be roughly seen for the valve interior: inlet pressure P1, outlet pressure P2. When the valve is closed, the actuator needs to overcome the friction force F friction force between the valve core part and the valve body cover, and the pressure difference F P caused by P1-P2. The actuator overcomes these two forces, F actuator output =F friction force +FP. When the pressure difference F P is too large due to the too large P1-P2, F Actuator max＜F friction force +FP indicates that the force value of the actuator is insufficient, which is actually reflected in that the valve cannot be turned off, as shown in fig. 1.
Therefore, the regulating valve has the advantages of simple structure, low cost, good sealing effect, large flow, high precision, convenient use and convenient maintenance, and has great practical significance.
Disclosure of utility model
The utility model provides a cast iron electric regulating valve which is used for solving the problems set forth in the background technology.
The utility model discloses a cast iron electric regulating valve, which comprises a cast iron valve body, wherein a P1 port is formed in the left side of the cast iron valve body, a P2 port is formed in the right side of the cast iron valve body, a channel hole for communicating the P1 port and the P2 port is formed between the P1 port and the P2 port, the upper end of the channel hole is movably connected with a flow regulating device up and down, the flow regulating device comprises a valve seat, a valve cover combination, a valve cone, a valve shaft and a sealing box assembly, the valve cover combination is fixedly connected to the upper end of the cast iron valve body, the center of the valve cover combination is slidably connected to the upper end of the valve shaft, the lower end of the valve shaft is fixedly connected with the valve cone, and the lower end of the valve cone is fixedly connected with the valve cone.
Preferably, a sealing box component is arranged at the connection part between the valve cover combination and the valve shaft.
Preferably, the inside of the channel hole is fixedly connected with a valve seat with a through center, and the lower end of the valve cone is a conical surface.
Preferably, a valve cone polytetrafluoroethylene gasket is arranged between the lower end of the valve cone and the upper end of the valve cone.
Preferably, the valve cover assembly is externally provided with sealing rings, and the sealing rings are two groups.
Further, a raised circle of boss is arranged outside the valve cone body and used for limiting the highest position of the valve cone.
Preferably, a second sealing ring is arranged at the position where the inner part of the valve cover assembly is connected with the valve cone.
Preferably, the cast iron valve body and the valve cover combination are connected through a first bolt.
Preferably, the valve cone and the valve cone are connected by a second bolt, and two through holes longitudinally penetrate through the valve cone and the valve cone.
Preferably, a valve seat gasket is arranged between the valve seat and the cast iron valve body.
Compared with the prior art, the utility model has the following beneficial effects:
the valve shaft moves up and down, so that the valve cone is driven to move up and down on the inner wall of the valve cover assembly, and meanwhile, the valve cone fixedly connected with the valve cone and the valve cone polytetrafluoroethylene gasket move up and down together with the valve shaft and the valve cone under the action of external power. Thereby changing the relative position between the valve cone and the overflow hole, and changing the sectional area of the overflow hole so as to achieve the purpose of flow control. The valve cone is in sliding fit with the valve cover combination inner wall, the valve cover combination inner wall has a guiding effect on the valve cone, the guiding fit can ensure that the valve cone, the valve cone and the valve cone are integrated with the polytetrafluoroethylene gasket, vibration is small when the fluid flow velocity changes, and the service life of components such as a sealing box component is further ensured.
Drawings
The technical scheme of the utility model will be described in further detail below with reference to the accompanying drawings and examples.
FIG. 1 is a prior art drawing of the background art;
FIG. 2 is a sectional view showing an opened state of a cast iron electric control valve according to the present utility model;
FIG. 3 is a cross-sectional view showing the structure of a cast iron electric control valve according to the present utility model in a closed state;
FIG. 4 is a block diagram of a valve cover assembly of a cast iron electric control valve of the present utility model;
FIG. 5 is a combined block diagram of the valve cone, the valve shaft of the cast iron electric control valve of the present utility model;
FIG. 6 is a block diagram of a cast iron valve body of a cast iron electric control valve of the present utility model;
fig. 7 is an enlarged view of a structural view of a cast iron electric control valve of fig. 2 according to the present utility model.
In the figure: cast iron valve body 1, valve seat gasket 2, disk seat 3, valve cone polytetrafluoroethylene gasket 4, valve gap combination 5, valve cone 6, boss 601, valve cone 7, valve shaft 8, seal box subassembly 9, first bolt 10, sealing washer 11, second bolt 12, second sealing washer 13, through-hole 14.
Detailed Description
Various embodiments of the present utility model are disclosed in the following drawings, which are presented in sufficient detail to provide a thorough understanding of the present utility model. However, it should be understood that these physical details should not be used to limit the utility model. That is, in some embodiments of the present utility model, these physical details are not necessary. Moreover, for the sake of simplicity of illustration, some well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Referring to fig. 2-7, the cast iron electric regulating valve of the utility model comprises a cast iron valve body 1, wherein a P1 port is arranged on the left side of the cast iron valve body 1, the valve body 1 is made of ductile cast iron, and compared with gray cast iron valve bodies with the same specification, the cast iron electric regulating valve can bear larger working pressure, and has higher safety coefficient and higher safety and reliability. The right side of cast iron valve body 1 has seted up P2 mouthful, be provided with the passage way hole that is used for between intercommunication P1 mouthful and the P2 mouthful between P1 mouthful and the P2 mouthful, upper and lower swing joint flow control device of passage way hole, flow control device includes disk seat gasket 2, disk seat 3, valve gap combination 5, valve cone 6, valve cone 7, valve shaft 8, seal letter subassembly 9, valve gap combination 5 fixed connection is in the upper end of cast iron valve body 1, the upper end of valve shaft 8 is connected in the center sliding of valve gap combination 5, and valve shaft 8 passes seal letter subassembly 9 from top to bottom and continues to pass valve gap combination 5 and further go deep into the inner chamber of cast iron valve body 1, valve cone 6 is connected to valve shaft 8 lower part fixed connection valve cone 6, adopts second bolt 12 fixed connection to valve cone 6 and valve cone 7, and the clamp compresses tightly between valve cone 6 and the valve cone 7 and is fixed with valve cone polytetrafluoroethylene gasket 4. A balance cavity P3 is formed between the valve cone 6 and the valve cover combination 5, and two through holes 14 with the diameter of 3mm longitudinally penetrate through the valve cone 6 and the valve cone 7. In the valve-off position, the two through holes 14 are communicated with the cavities of the balance cavities P3 and P1, and according to the principle of the communicating vessel, the pressure values of the cavities of the balance cavities P3 and P1 are the same, namely the acting forces of the upper surface and the lower surface of the valve cone 6 and the valve cone 7, which are subjected to water, are basically the same. When the valve cone 7 acts, only the friction resistance of the structure is needed to be overcome, namely, the valve cone is easier to close under the condition of larger pressure difference between the P1 port and the P2 port, namely, higher closing pressure difference is realized. Without this orifice 14, the valve would need to overcome a hydraulic resistance when it is desired to close, i.e., a high closing pressure differential would not be achieved.
Further, a sealing box assembly 9 is arranged at the connecting part between the valve cover assembly 5 and the valve shaft 8.
Further, the inside of the channel hole is fixedly connected with a valve seat 3 with a through center, and the lower end of the valve cone 7 is a conical surface; when the valve is closed, the valve cone 7 drives the valve cone polytetrafluoroethylene gasket 4 to be pressed onto the valve seat 3, so that the closing seal is realized. The orifice in the middle of the valve seat 3 is an overflow orifice, and the fit size between the overflow orifice of the valve seat 3 and the valve cone 7 needs to be precisely machined to realize a specific flow characteristic curve. The gap change of the valve seat 3 and the valve cone 7 at different opening degrees directly reflects the integral flow rate change.
Further, a sealing ring 11 is arranged outside the valve cover combination 5, and the sealing rings 11 are two groups.
Further, the valve cone 6 is provided with a raised ring of bosses 601 on the outside, the bosses 601 being used to limit the highest position of the valve cone 6.
Further, a second sealing ring 13 is arranged at a position where the interior of the valve cover assembly 5 is connected with the valve cone 6.
Further, the cast iron valve body 1 and the valve cover combination 5 are connected by a first bolt 10.
Further, a valve seat gasket 2 is arranged between the valve seat 3 and the cast iron valve body 1.
Examples: the valve cone 6 and the inner wall of the valve cover combination 5 are in sliding fit, the inner wall of the valve cover combination 5 has a guiding function on the valve cone 6, the guiding fit can ensure that the valve cone 6, the valve cone 7 and the valve cone polytetrafluoroethylene gasket 4 are combined into an integrated valve cone, when the fluid flow velocity changes, vibration is small, and the service life of sealing elements such as the sealing box assembly 9 is further ensured. The external power is provided by connecting an external electric actuating mechanism with the valve shaft 8, and the external power can be matched with other actuating mechanisms adopting the same connecting mode, so that the valve has a wide application range. In addition, the valve shaft 8 can move up and down by the connecting power, so that the valve cone 6 is driven to move up and down on the inner wall of the valve cover assembly 5, and meanwhile, the valve cone 7 and the valve cone polytetrafluoroethylene gasket 4 fixedly connected with the valve cone 6 can also move up and down together with the valve shaft 8 and the valve cone 6 under the action of the connecting power. Thereby changing the relative position between the valve cone 7 and the overflow hole, and changing the sectional area of the overflow hole so as to achieve the purpose of flow control. When the valve cone 6 continues to move downwards, the valve cone polytetrafluoroethylene gasket 4 which is fixedly connected with the valve cone 7 in a pressing mode is driven to be pressed with the sealing surface on the overflow hole of the valve seat 3, and the valve is in a complete closing state at the moment, so that the closing function of the valve is realized.
In the utility model, a balance cavity is formed between the valve cone 6 and the valve cover combination 5, and the pressure in the balance cavity is recorded as P3. When the valve is closed, the actuator needs to overcome the friction force F friction force between the valve core part and the valve body cover, and the pressure difference F P1 caused by P1-P3. In the limit F Actuator max=F friction force +FP1. Because of the through-hole 14, p1=p3, the actuator only needs to overcome the friction force F friction force between the valve core part and the valve body cover, namely: and F actuator output =F friction force , the force value required by the actuator when the valve is closed is greatly reduced, the efficiency of the actuator is improved, and the load of the actuator is reduced. Even under the condition that high pressure difference exists at two ends of the valve, the product can be normally turned off, and the function of the product is not affected. In addition, the actuator avoids long-term working under high load and can prolong the service life.
The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principle of the present utility model, should be included in the scope of the claims of the present utility model.
Claims (10)
1. The utility model provides an electric cast iron regulating valve, includes cast iron valve body (1), P1 mouthful has been seted up on the left side of cast iron valve body (1), P2 mouthful has been seted up on the right of cast iron valve body (1), be provided with the passage way hole that is used for between intercommunication P1 mouthful and the P2 mouthful between P1 mouthful and the P2 mouthful, swing joint flow control device about the passage way hole upper end, its characterized in that: the flow regulating device comprises a valve seat (3), a valve cover combination (5), a valve cone body (6), a valve cone (7) and a valve shaft (8), wherein the valve cover combination (5) is fixedly connected to the upper end of the cast iron valve body (1), the center of the valve cover combination (5) is slidably connected with the upper end of the valve shaft (8), the lower end of the valve shaft (8) is fixedly connected with the valve cone body (6), and the lower end of the valve cone body (6) is fixedly connected with the valve cone body (7).
2. The cast iron electric control valve according to claim 1, wherein: a sealing box assembly (9) is arranged at the connection position between the valve cover assembly (5) and the valve shaft (8).
3. The cast iron electric control valve according to claim 1, wherein: the inside of the channel hole is fixedly connected with a valve seat (3) with a through center; the lower end of the valve cone (7) is a conical surface, and when the valve cone is closed, the valve cone (7) drives the valve cone polytetrafluoroethylene gasket (4) to be pressed onto the valve seat (3).
4. The cast iron electric control valve according to claim 1, wherein: a valve cone polytetrafluoroethylene gasket (4) is arranged between the lower end of the valve cone body (6) and the upper end of the valve cone (7).
5. The cast iron electric control valve according to claim 1, wherein: the valve cover assembly (5) is externally provided with sealing rings (11), and the sealing rings (11) are two groups.
6. The cast iron electric control valve according to claim 1, wherein: a raised circle of boss (601) is arranged outside the valve cone (6), and the boss (601) is used for limiting the highest position of the valve cone (6).
7. The cast iron electric control valve according to claim 1, wherein: the second sealing ring (13) is arranged at the position where the inner part of the valve cover combination (5) is connected with the valve cone (6).
8. The cast iron electric control valve according to claim 1, wherein: the cast iron valve body (1) is connected with the valve cover assembly (5) through a first bolt (10).
9. The cast iron electric control valve according to claim 1, wherein: the valve cone (6) and the valve cone (7) are connected by a second bolt (12), and two through holes (14) longitudinally penetrate through the valve cone (6) and the valve cone (7).
10. A cast iron electric control valve according to claim 3, characterized in that: a valve seat gasket (2) is arranged between the valve seat (3) and the cast iron valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323291061.1U CN221323293U (en) | 2023-12-04 | 2023-12-04 | Cast iron electric regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323291061.1U CN221323293U (en) | 2023-12-04 | 2023-12-04 | Cast iron electric regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221323293U true CN221323293U (en) | 2024-07-12 |
Family
ID=91792555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323291061.1U Active CN221323293U (en) | 2023-12-04 | 2023-12-04 | Cast iron electric regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221323293U (en) |
-
2023
- 2023-12-04 CN CN202323291061.1U patent/CN221323293U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 108, Room 1037, 9th Floor, No. 180 Majiabao, Fengtai District, Beijing 100068 Patentee after: Jingwei Xintong (Beijing) Energy Management Co.,Ltd. Country or region after: China Address before: No. 125, Floor 2, Building 13, International Headquarters City, Chagu Avenue, Liuwu New District, Lhasa, Xizang Autonomous Region Patentee before: Jingwei Xintong (Tibet) Intelligent Equipment Co.,Ltd. Country or region before: China |