CN212564577U - Anti-blocking safety valve - Google Patents
Anti-blocking safety valve Download PDFInfo
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- CN212564577U CN212564577U CN202021542546.7U CN202021542546U CN212564577U CN 212564577 U CN212564577 U CN 212564577U CN 202021542546 U CN202021542546 U CN 202021542546U CN 212564577 U CN212564577 U CN 212564577U
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Abstract
The utility model relates to a prevent blockking up relief valve, include: the valve comprises a valve body, a valve seat, a valve clack, a valve cover, a recoil disc and a pressure setting device; the method is characterized in that: the valve seat is composed of an upper valve seat and a lower valve seat, the upper valve seat is fixedly arranged at the upper port of the inlet channel of the valve body, the lower valve seat is arranged at the lower port of the inlet channel of the valve body, the lower end face of the lower valve seat is provided with an arc with the diameter equal to that of the pressure pipeline, an inner cone sealing surface is arranged in the lower valve seat channel, the valve clack is provided with an outer cone sealing surface matched with the inner cone sealing surface, the lower end face of the valve clack is provided with an arc with the same radian as that of the lower end face of the. The dead zone of a medium flow channel is avoided, the medium is condensed and accumulated in the inlet channel of the safety valve, even the inlet channel is blocked, the normal work of the safety valve is influenced, and the safety valve has the advantages of reliable working performance, good sealing performance and the like.
Description
Technical Field
The utility model relates to a relief valve especially relates to a relief valve is prevented blockking up by spring.
Background
Traditional spring relief valve, its valve seat sealing face is installed at the valve body inner chamber, and the valve seat sealing face communicates through inlet channel and pipeline under pressure, and inlet channel adopts spray tube shape runner design, and its shortcoming lies in: when the conveying medium in the pipeline is a medium which is easy to crystallize or solidify, such as slurry, polypropylene and the like, the safety valve is closed most of the time, crystallization and precipitation are easy to cause in the inlet channel of the valve seat, when the medium pressure in the pipeline is abnormally boosted and reaches the preset set pressure, the valve clack cannot be opened, the valve cannot be effectively decompressed, and the pipeline or the pressure container cannot be effectively protected.
Disclosure of Invention
To the technical defect who exists among the prior art, the utility model provides a prevention medium deposits, crystallization at the disk seat inner chamber, and the jam relief valve that prevents that working property is reliable, the leakproofness is good.
The utility model discloses a following technical scheme realizes:
an anti-clog safety valve comprising: the valve body, the valve seat, the valve clack, the valve bonnet, the recoil disc and the pressure setting device, wherein the valve seat is installed in an inlet channel of the valve body, the pressure setting device is installed in an inner cavity of the valve bonnet and consists of a spring, an upper spring seat, a lower spring seat, an upper valve rod and a regulating rod, the regulating rod is arranged on the upper part of the valve bonnet in a threaded connection mode, the lower part of the regulating rod abuts against the upper spring seat, the upper part of the regulating rod extends into the valve bonnet, the spring is pressed between the upper spring seat and the lower spring seat, the upper end of the upper valve rod sequentially penetrates through a guide sleeve, the lower spring seat, the spring, the upper spring seat and the regulating rod upwards; the method is characterized in that: the valve seat is composed of an upper valve seat and a lower valve seat, the upper valve seat is fixedly arranged at the upper port of the inlet channel of the valve body, the lower valve seat is arranged at the lower port of the inlet channel of the valve body, the lower end face of the lower valve seat is provided with an arc with the diameter equal to that of a pressure pipeline, an inner cone sealing surface is arranged in the channel of the lower valve seat, the valve clack is provided with an outer cone sealing surface matched with the inner cone sealing surface, the lower end face of the valve clack is provided with an arc with the same radian as the lower end face of the lower valve seat, the upper end face of the valve clack is fixedly connected with the lower end of the lower valve rod, the outer circle face of the upper end of the lower valve rod is matched with a guide hole of a guide sleeve in a guide way, the.
Preferably, the valve clack comprises a valve clack seat, a valve clack core and a valve clack cover, wherein the lower end face of the valve clack seat is provided with an arc with the same radian as the lower end face of the lower valve seat, the center of the upper end face of the valve clack seat is provided with a blind hole, the lower end of the lower valve rod is abutted against the bottom of the blind hole and fixedly connected with the valve clack seat through a cross pin, the valve clack cover is fixedly installed by adopting internal threads and external threads of the valve clack seat, an annular groove is formed between the lower annular face of the valve clack cover and the annular step of the valve clack seat, the valve clack core is fixedly arranged in the.
Preferably, a corrugated pipe is arranged between the guide sleeve and the upper end face of the recoil disc, a protective sleeve is arranged outside the corrugated pipe, the upper part of the protective sleeve is a metal sleeve, the valve cover is pressed in the plane of the middle cavity of the valve body, the lower part of the protective sleeve is a rubber sleeve, the upper end of the rubber sleeve is fixedly connected to the outer circular face of the metal sleeve, and the lower end of the rubber sleeve is pressed in the plane of the recoil disc.
Compared with the prior art, the utility model beneficial effect be: lower disk seat has the circular arc with the same radian of medium pipeline with valve clack sealing state down, avoids current product because of the change of mounted position local structure for medium pipeline circulation the inflection point appears, causes the medium runner blind spot, and the medium condenses, piles up in relief valve inlet passage, blocks up inlet passage even, influences the normal work of relief valve, has advantages such as working property is reliable, the leakproofness is good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion E of fig. 1 according to the present invention.
Detailed Description
An anti-jamming safety valve as shown in figure 1, comprising: the pressure setting device consists of a spring 13, an upper spring seat 16, a lower spring seat 12, an upper valve rod 14 and an adjusting rod 17 and is arranged in an inner cavity of the valve cover 15, the adjusting rod 17 is arranged at the upper part of the valve cover 15 in a threaded connection mode, the lower part of the adjusting rod 17 abuts against the upper spring seat 16, the upper part of the adjusting rod 17 extends into the valve cover 18, the spring 13 is pressed between the upper spring seat 16 and the lower spring seat 12, the upper end of the upper valve rod 14 upwards sequentially penetrates through a guide sleeve 11, the lower spring seat 12, the spring 13, the upper spring seat 16 and the adjusting rod 17 into the valve cover 18, the lower end of the valve cover 15 is fixedly arranged at the upper end of the valve body 4, and a mounting disc of the guide sleeve 11 is pressed between the valve cover 15 and the valve body 4; the method is characterized in that: the valve seat is composed of an upper valve seat 6 and a lower valve seat 2, the upper valve seat 6 is fixedly arranged at the upper port of an inlet channel 20 of the valve body 4, the lower valve seat 2 is arranged at the lower port of the inlet channel 20 of the valve body 4, the lower end surface of the upper valve seat has an arc with the diameter equal to that of a flow channel of the pressure pipeline 1, an inner conical sealing surface 24 is arranged in the channel of the lower valve seat 2, the valve flap has an outer conical sealing surface matched with the inner conical sealing surface 24, the lower end surface of the valve flap has an arc with the same radian as that of the lower end surface of the lower valve seat 2, when the valve flap is in sealing fit with the lower valve seat 2, the lower end surface of the valve flap and the lower end surface of the lower valve seat 2 and the inner wall of the pressure pipeline 1 form a continuous circular flow channel, no dead zone and no dead angle exist in the flow channel, the medium is prevented from being condensed, the upper end face of the lower valve rod 5 is provided with an upper blind hole, the lower end of the upper valve rod 14 is in top contact with the bottom of the upper blind hole, the recoil disc 8 is installed on the lower valve rod 5, the lower end face of the recoil disc is located at the upper end opening of the upper valve seat 6, an external thread is arranged on the outer circular face of the upper end opening of the upper valve seat 6, the adjusting ring 7 is installed on the external thread, the opening height of the recoil disc is controlled by adjusting the upper position and the lower position of the adjusting ring 7, and the flow coefficient.
The valve clack comprises valve clack seat 22, valve clack core 23, valve clack lid 3, valve clack seat 22 lower terminal surface is equipped with the circular arc with the same radian of lower terminal surface of lower disk seat 2, valve clack seat 22 up end center system has the blind hole, lower valve rod 5 lower extreme is contradicted in this blind hole bottom and is by horizontal round pin 21 and valve clack seat 22 fixed connection, valve clack lid 3 adopts internal thread and valve clack seat 22 external screw thread fixed mounting, constitute annular slot between 3 lower anchor rings of valve clack lid and the radial annular step of valve clack seat 22, valve clack core 23 fixed mounting is in this slot, valve clack core 23 outer anchor ring has the outer cone sealing surface with the interior cone sealing surface 24 looks adaptations of lower disk seat 2, valve clack core.
The corrugated pipe 9 is arranged between the mounting disc of the guide sleeve 11 and the upper end face of the recoil disc 8, a medium is prevented from entering a guide hole of the guide sleeve 11 to crystallize, the flexibility of movement of the lower valve rod 5 is influenced, the protective sleeve 10 is arranged outside the corrugated pipe 9, the medium is prevented from crystallizing on the corrugated pipe 9 and scouring the corrugated pipe 9, the telescopic performance of the corrugated pipe 9 is influenced, the upper portion of the protective sleeve 10 is a metal sleeve, the mounting disc at the upper end of the metal sleeve is pressed in a cavity plane in the valve body 4 through the valve cover 15, the lower portion of the metal sleeve is a rubber sleeve, the upper end of the rubber sleeve is fixedly connected to the outer circular surface of the metal sleeve, the lower end of the rubber sleeve is pressed in the upper plane of the recoil disc 8, the axial height of the rubber sleeve is larger than the maximum opening height.
Claims (3)
1. An anti-clog safety valve comprising: the pressure setting device comprises a spring (13), an upper spring seat (16), a lower spring seat (12), an upper valve rod (14) and an adjusting rod (17), and is installed in an inner cavity of the valve cover (15), the adjusting rod (17) is arranged on the upper portion of the valve cover (15) in a threaded connection mode, the lower portion of the adjusting rod (17) abuts against the upper spring seat (16), the upper portion of the adjusting rod (17) extends into the valve cover (18), the spring (13) is pressed between the upper spring seat (16) and the lower spring seat (12), the upper end of the upper valve rod (14) upwards sequentially penetrates through a guide sleeve (11), the lower spring seat (12), the spring (13), the upper spring seat (16), The adjusting rod (17) extends into the valve cap (18), the lower end of the valve cap (15) is fixedly arranged at the upper end of the valve body (4), and the mounting disc of the guide sleeve (11) is pressed between the valve cap (15) and the valve body (4); the method is characterized in that: the valve seat consists of an upper valve seat (6) and a lower valve seat (2), the upper valve seat (6) is fixedly arranged at an upper port of an inlet channel (20) of the valve body (4), the lower valve seat (2) is arranged at a lower port of the inlet channel (20) of the valve body (4), the lower end surface of the upper valve seat has an arc with the diameter equal to that of a flow channel of the pressure pipeline (1), an inner conical sealing surface (24) is arranged in a channel of the lower valve seat (2), the valve flap has an outer conical sealing surface matched with the inner conical sealing surface (24), the lower end surface of the valve flap has an arc with the same radian as that of the lower end surface of the lower valve seat (2), the upper end surface of the valve flap is fixedly connected with the lower end of the lower valve rod (5), the outer circular surface of the upper end of the lower valve rod (5) is in guiding fit with a guide hole of a guide sleeve (11), the upper end surface of the lower valve rod (5) is provided with an upper, the lower end surface of the valve body is positioned at the upper port of the upper valve seat (6).
2. The anti-clog safety valve according to claim 1, wherein: the valve clack comprises a valve clack seat (22), a valve clack core (23) and a valve clack cover (3), wherein the lower end face of the valve clack seat (22) is provided with an arc with the same radian as the lower end face of the lower valve seat (2), the center of the upper end face of the valve clack seat (22) is provided with a blind hole, the lower end of the lower valve rod (5) is abutted to the bottom of the blind hole and is fixedly connected with the valve clack seat (22) through a cross pin (21), the valve clack cover (3) is fixedly installed through an internal thread and an external thread of the valve clack seat (22), an annular groove is formed between the lower annular face of the valve clack cover (3) and a radial annular step of the valve clack seat (22), the valve clack core (23) is fixedly installed in the annular groove, and the outer annular face of the valve clack core (.
3. An anti-clogging safety valve according to claim 1 or 2, characterized in that: be equipped with bellows (9) between the mounting disc of uide bushing (11) and recoil dish (8) up end, bellows (9) outside sets up protective sheath (10), and this protective sheath (10) upper portion is the metal sleeve, and the mounting disc of metal sleeve upper end is in valve body (4) lumen plane by valve gap (15) pressure equipment, and the lower part is the rubber sleeve, the upper end fixed connection of rubber sleeve is in the outer disc of metal sleeve, and the lower extreme pressure equipment is in recoil dish (8) upper plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542546.7U CN212564577U (en) | 2020-07-30 | 2020-07-30 | Anti-blocking safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542546.7U CN212564577U (en) | 2020-07-30 | 2020-07-30 | Anti-blocking safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564577U true CN212564577U (en) | 2021-02-19 |
Family
ID=74630523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021542546.7U Active CN212564577U (en) | 2020-07-30 | 2020-07-30 | Anti-blocking safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230923A (en) * | 2021-11-22 | 2022-10-25 | 浙江东溟科技有限公司 | Deep sea buoyancy regulating valve assembly |
-
2020
- 2020-07-30 CN CN202021542546.7U patent/CN212564577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230923A (en) * | 2021-11-22 | 2022-10-25 | 浙江东溟科技有限公司 | Deep sea buoyancy regulating valve assembly |
| CN115230923B (en) * | 2021-11-22 | 2024-04-23 | 浙江东溟科技有限公司 | Deep sea buoyancy regulating valve assembly |
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