CN214331600U - Differential pressure self-closing device - Google Patents
Differential pressure self-closing device Download PDFInfo
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- CN214331600U CN214331600U CN202120223034.2U CN202120223034U CN214331600U CN 214331600 U CN214331600 U CN 214331600U CN 202120223034 U CN202120223034 U CN 202120223034U CN 214331600 U CN214331600 U CN 214331600U
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Abstract
The utility model relates to the technical field of valves, concretely relates to differential pressure self-closing device, it includes the casing, the inside of casing is equipped with the case, the right side of casing is medium outlet, and the left side is medium inlet, medium outlet one side is equipped with the disk seat, the both sides of case are equipped with regulating spring, valve gap respectively, regulating spring's one end fixed connection is inside the case, and other end fixed connection is between the disk seat, the upper and lower both ends of case are equipped with the first sealing of slope setting, the upper and lower both sides of disk seat leftmost end are equipped with the second sealing, first sealing, second sealing make up and constitute sealed vice, the angle of the first sealing bottom surface of top surface angle laminating of second sealing, sealed vice formation dynamic seal.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a differential pressure self-closing device.
Background
The valves are used for the valves of the fluid control system, from the simplest stop valves to various valves used in extremely complex automatic control systems, and the variety and specification of the valves are quite various.
However, most valves on the market at present all adopt a static sealing mode, the static sealing mode is relatively rigid, self-regulation cannot be realized according to the condition in the whole system, for example, when a leakage condition occurs, the opening and closing of the valve are required to be operated, even if a system for closing the valve by automatic early warning, an emergency reaction system with high price also needs to be equipped, and the cost is too high.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, an object of the present invention is to provide a differential pressure self-closing device, which has dynamic sealing capability and can realize self-adjustment according to the specific situation of upstream and downstream equipment.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a differential pressure self-closing device, includes the casing, the inside of casing is equipped with the case, the right side of casing is the medium export, and the left side is the medium entry, medium export one side is equipped with the disk seat, the both sides of case are equipped with adjusting spring, valve gap respectively, adjusting spring's one end fixed connection is inside the case, and other end fixed connection is between the disk seat, the upper and lower both ends of case are equipped with the first sealing of slope setting, the upper and lower both sides of disk seat leftmost end are equipped with the second sealing, first sealing, second sealing make up and constitute sealed pair, the top surface angle laminating of second sealing is the angle of first sealing bottom surface.
Further, the valve core comprises a movable part and a spring mounting part, the movable part is connected with the valve cover, the spring mounting part extends into the valve seat, the adjusting spring is mounted between the spring mounting part, and an external circular force runner groove is formed between the spring mounting part and the valve seat.
Furthermore, a communicating flow channel groove is formed between the outer side of the valve core and the shell, the communicating flow channel groove is communicated with the outer circle force flow channel groove, a flow-in groove is formed between the valve cover and the valve core, and the flow-in groove is sequentially communicated with the communicating flow channel groove and the outer circle force flow channel groove.
Furthermore, a circulation hole is formed in one side, close to the valve cover, of the valve core, and the circulation hole is formed in the connecting position between the inflow groove and the communication flow channel groove.
To sum up, the utility model discloses following beneficial effect has:
the differential pressure balance valve can be widely applied to occasions where medium leakage easily occurs, such as industrial pipelines, and the like, and can automatically close pipelines when the downstream pressure changes to cause pressure difference change by adopting a differential pressure balance principle, thereby reducing the hidden danger of leakage and improving the safety level of a system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of the middle and outer circular force runner groove of the present invention;
fig. 3 is an enlarged schematic view of the present invention at a in fig. 1.
In the figure, 1, a housing; 2. a valve core; 3. a media outlet; 4. a media inlet; 5. a valve seat; 6. adjusting the spring; 7. a valve cover; 8. a first seal portion; 9. a second seal portion; 10. a movable portion; 11. a spring mounting portion; 12. an outer circle force runner groove; 13. the runner groove is communicated; 14. a flow-in groove; 15. and (4) a flow hole.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1: the utility model provides a differential pressure self-closing device, as shown in figure 1, includes casing 1, and casing 1's inside is equipped with case 2, and casing 1's right side is medium export 3, and the left side is medium entry 4, and 3 one side of medium export is equipped with disk seat 5, and the both sides of case 2 are equipped with adjusting spring 6, valve gap 7 respectively, and valve gap 7 outside is the screw thread form, and the hexagon socket head form is designed to the internal design, and the design of middle part has the runner.
As shown in fig. 1 and 3, one end of the adjusting spring 6 is fixedly connected inside the valve core 2, the other end is fixedly connected between the valve seats 5, the upper end and the lower end of the valve core 2 are provided with first sealing parts 8 which are obliquely arranged, the upper side and the lower side of the leftmost end of the valve seat 5 are provided with second sealing parts 9, the first sealing part 8 and the second sealing part 9 are combined to form a sealing pair, the top surface angle of the second sealing part 9 is attached to the angle of the bottom surface of the first sealing part 8, and the sealing pair forms dynamic sealing.
As shown in fig. 1 and 2, the valve element 2 includes a movable portion 10 and a spring mounting portion 11, the movable portion 10 is connected to the valve cover 7, the spring mounting portion 11 extends into the valve seat 5, the adjusting spring 6 is mounted between the spring mounting portion 11, and an outer circular force flow channel 12 is provided between the spring mounting portion 11 and the valve seat 5.
As shown in fig. 1, a communicating flow channel groove 13 is provided between the outer side of the valve element 2 and the housing 1, the communicating flow channel groove 13 is communicated with the outer circle force flow channel groove 12, an inflow groove 14 is provided between the valve cover 7 and the valve element 2, and the inflow groove 14 is sequentially communicated with the communicating flow channel groove 13 and the outer circle force flow channel groove 12.
As shown in fig. 1, a flow hole 15 is provided on the valve body 2 on the side close to the valve cover 7, and the flow hole 15 is provided at the junction between the inflow groove 14 and the communication flow channel groove 13.
The utility model discloses an among the embodiment, 2 both sides bearing area of case and medium pressure differ, produce the poor pressure. When the differential pressure is greater than the spring force, the valve core 2 moves towards the right side, the device tends to be closed, the first sealing part 8 and the second sealing part 9 are mutually attached and sealed at the moment, the outer circle force runner groove 12 and the communicating runner groove 13 are mutually separated, and the medium cannot normally flow through the valve.
When the difference force is smaller than the spring force, the valve core 2 moves towards the left side, the valve core 2 is opened, the first sealing part 8 and the second sealing part 9 are gradually far away at the moment, the outer circle force runner groove 12 and the communication runner groove 13 form a communication runner, and a medium can smoothly pass through the valve.
The differential pressure on the two sides of the valve core 2 depends on the downstream pressure, when the downstream equipment leaks, the differential pressure on the two sides of the valve core 2 is increased, and the valve core 2 tends to be closed, so that the important application value and the leakage automatic closing function of the device are realized.
The valve cover 7 is used for adjusting the pressing force of the spring, fixing and adjusting the position of the valve core 2, and further adjusting the applicable differential pressure range of the device.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (4)
1. The utility model provides a differential pressure self-closing device, includes casing (1), the inside of casing (1) is equipped with case (2), its characterized in that: the right side of the shell (1) is provided with a medium outlet (3), the left side of the shell is provided with a medium inlet (4), one side of the medium outlet (3) is provided with a valve seat (5), two sides of the valve core (2) are respectively provided with an adjusting spring (6) and a valve cover (7), one end of the adjusting spring (6) is fixedly connected inside the valve core (2), the other end of the adjusting spring is fixedly connected between the valve seat (5), the upper end and the lower end of the valve core (2) are provided with first sealing parts (8) which are obliquely arranged, the upper side and the lower side of the leftmost end of the valve seat (5) are provided with second sealing parts (9), the first sealing parts (8) and the second sealing parts (9) are combined to form a sealing pair, and the top surface angle of the second sealing parts (9) is attached to the angle of the bottom surface of the first sealing parts (8).
2. The differential pressure self-closing apparatus according to claim 1, wherein: the valve core (2) comprises a movable part (10) and a spring mounting part (11), the movable part (10) is connected with the valve cover (7), the spring mounting part (11) extends to the inside of the valve seat (5), the adjusting spring (6) is mounted between the spring mounting part (11), and an external circular force runner groove (12) is formed between the spring mounting part (11) and the valve seat (5).
3. The differential pressure self-closing apparatus according to claim 2, wherein: be equipped with between case (2) outside and casing (1) and communicate runner groove (13), communicate runner groove (13) and excircle power runner groove (12) intercommunication each other, be equipped with between valve gap (7) and case (2) inflow groove (14), inflow groove (14) and communicate runner groove (13), excircle power runner groove (12) communicate in proper order.
4. A differential pressure self-closing apparatus as defined in claim 3, wherein: one side of the valve core (2) close to the valve cover (7) is provided with a circulation hole (15), and the circulation hole (15) is arranged at the joint between the inflow groove (14) and the communicating flow channel groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120223034.2U CN214331600U (en) | 2021-01-26 | 2021-01-26 | Differential pressure self-closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120223034.2U CN214331600U (en) | 2021-01-26 | 2021-01-26 | Differential pressure self-closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214331600U true CN214331600U (en) | 2021-10-01 |
Family
ID=77906769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120223034.2U Active CN214331600U (en) | 2021-01-26 | 2021-01-26 | Differential pressure self-closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214331600U (en) |
-
2021
- 2021-01-26 CN CN202120223034.2U patent/CN214331600U/en active Active
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