CN209892767U - Floating seal valve seat of gas pressure regulator - Google Patents
Floating seal valve seat of gas pressure regulator Download PDFInfo
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- CN209892767U CN209892767U CN201920739935.XU CN201920739935U CN209892767U CN 209892767 U CN209892767 U CN 209892767U CN 201920739935 U CN201920739935 U CN 201920739935U CN 209892767 U CN209892767 U CN 209892767U
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- valve
- seat
- valve clack
- pressure regulator
- clack
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Abstract
The utility model belongs to the technical field of gas transmission and distribution equipment, a gas pressure regulator floating seal disk seat is disclosed. The main technical characteristics are as follows: including valve port, valve rod, the bottom of valve rod be provided with valve port assorted valve clack seat, valve clack and clamp plate, the rubber seal of valve clack for being equipped with metal framework, the rubber seal upper end is the rubber seal plane, the rubber seal lower extreme is the sealed face of O type rubber, the clamp plate lower extreme be provided with the sealed face size assorted boss of O type rubber, valve clack seat upper end plane department be provided with the sealed face assorted recess of O type rubber, valve clack seat center is provided with the internal thread hole, the valve rod bottom be provided with internal thread and hole assorted external screw thread, the sealed face of contact of valve port and valve clack is the circular. The floating seal valve seat of the gas pressure regulator enables the pressure regulator to obtain lower closing pressure by using the floating valve seat sealing structure, and has the advantages of simple structure, low manufacturing cost and long service life of the valve clack.
Description
Technical Field
The utility model belongs to the technical field of the gas transmission and distribution equipment, especially, relate to a gas pressure regulator floating seal disk seat.
Background
The gas pressure regulator is an important element in a gas transmission and distribution system, and the operation stability of the gas pressure regulator is important. When the pressure regulator is used in a situation with a low outlet pressure, the driving force acting on the diaphragm is low. When the pressure regulator is closed, because part machining has errors, a gap exists between the rubber sealing surface of the valve clack and the sealing surface of the valve port, and at the moment, a larger closing force is needed to overcome the elasticity of the rubber, so that the rubber sealing surface of the valve clack is in full contact with the sealing surface of the valve port. It is difficult to achieve a lower closing pressure. In the prior art, a method for increasing the area of a diaphragm or narrowing the edge face of a valve port sealing surface is often adopted for a pressure regulator used in a low-pressure occasion to solve the closing problem of the pressure regulator used in the occasion with lower outlet pressure. The disadvantages of this are: first, the increased membrane area results in increased manufacturing costs. Narrowing the edge face of the valve port sealing surface can increase the sealing specific pressure of the valve port to the valve clack and reduce the service life of the valve clack.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a gas pressure regulator floating seal disk seat of simple structure, safe and reliable is provided.
In order to solve the technical problem, the utility model discloses a technical scheme does: including valve port, valve rod, the bottom of valve rod be provided with valve port assorted valve clack seat, valve clack and clamp plate, the rubber seal of valve clack for being equipped with metal framework, the rubber seal upper end is the rubber seal plane, the rubber seal lower extreme is the sealed face of O type rubber, the clamp plate lower extreme be provided with the sealed face size assorted boss of O type rubber, valve clack seat upper end plane department be provided with the sealed face assorted recess of O type rubber, valve clack seat center is provided with the internal thread hole, the valve rod bottom be provided with internal thread and hole assorted external screw thread, the sealed face of contact of valve port and valve clack is the circular.
The utility model provides a when gas pressure regulator floating seal disk seat used, the valve rod was connected with clamp plate, valve clack and valve clack seat in proper order, and the external screw thread of valve rod closes the fastening soon with the internal thread hole of valve clack seat, and the boss of clamp plate lower extreme makes the O type rubber seal face of valve clack lower extreme and the groove seal of valve clack seat. When the pressure regulator is closed, the valve rod drives the pressing plate, the valve clack and the valve clack seat to move upwards, and when the rubber sealing plane at the upper end of the rubber sealing body of the valve clack is contacted with the circular arc sealing surface of the valve port, the valve clack can be automatically aligned and sealed with the valve port due to certain swinging amount among the valve clack, the valve clack seat and the pressing plate, so that extra closing force is not needed, and the closing pressure of the pressure regulator is reduced. In addition, because the required closing force is reduced, the sealing edge surface of the valve port does not need to be too narrow, and the arc surface is used instead of reducing the sealing specific pressure of the valve port to the valve clack, so that the service life of the valve clack is greatly prolonged. The utility model provides a gas pressure regulator floating seal disk seat through using floating disk seat seal structure, makes the pressure regulator obtain lower closing pressure. Compared with the prior art, the valve clack has the advantages that the structure is simple, the manufacturing cost of the pressure regulator is reduced, and meanwhile, the service life of the valve clack is prolonged.
Drawings
Fig. 1 is a schematic structural view of a floating seal valve seat of a gas pressure regulator of the present invention;
FIG. 2 is a schematic view of the valve flap;
FIG. 3 is a schematic view of a valve flap seat;
FIG. 4 is a schematic view of a platen;
FIG. 5 is a schematic view of a valve port;
FIG. 6 is a schematic view of the valve stem;
fig. 7 is a schematic structural diagram of a closed state of a floating seal valve seat of a gas pressure regulator.
Detailed Description
The structure and the working principle of the floating seal valve seat of the gas pressure regulator of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a gas pressure regulator floating seal disk seat includes valve port 1, valve rod 2, and the bottom of valve rod 2 is provided with and 1 assorted valve clack seat 3, valve clack 4 and clamp plate 5 of valve port.
As shown in fig. 2, the valve flap 4 is a rubber seal 42 provided with a metal skeleton 41, the upper end of the rubber seal 42 is a rubber seal plane 43, the lower end of the rubber seal 42 is an O-shaped rubber seal 44, and the metal skeleton 41 and the rubber seal 42 are connected by vulcanization.
As shown in fig. 3, a groove 31 is provided at the upper end plane of the valve flap seat 3, and an internal threaded hole 32 is provided at the center of the valve flap seat 3.
As shown in fig. 4, the lower end of the pressure plate 5 is provided with a boss 51.
As shown in fig. 5, the contact sealing surface of the valve port 1 is a circular arc sealing surface 11.
As shown in fig. 6, the bottom of the valve stem 2 is provided with an external thread 21.
As shown in fig. 7, the valve stem 2 is connected to the pressure plate 5, the valve flap 4 and the valve flap seat 3 in this order, the boss 51 at the lower end of the pressure plate 5 seals the O-shaped rubber sealing surface 44 at the lower end of the valve flap 4 with the groove 31 of the valve flap seat 3, and the rubber sealing plane 43 contacts the arc sealing surface 11.
The utility model provides a when gas pressure regulator floating seal disk seat used, valve rod 2 was connected with clamp plate 5, valve clack 4 and valve clack seat 3 in proper order, and the external screw thread 21 of valve rod 2 closes the fastening soon with the internal thread hole 32 of valve clack seat 3, and the boss 51 of 5 lower extremes of clamp plate makes the O type rubber seal face 44 of valve clack 4 lower extreme sealed with the recess 31 of valve clack seat 3. When the pressure regulator is closed, the valve rod 2 drives the pressing plate 5, the valve clack 4 and the valve clack seat 3 to move upwards, and when the rubber sealing plane 43 at the upper end of the rubber sealing body 42 of the valve clack 4 is contacted with the circular arc sealing surface 11 of the valve port 1, the valve clack 4 can be automatically aligned to be sealed with the valve port 1 due to certain swinging amount between the valve clack 4 and the valve clack seat 3 as well as the pressing plate 5, so that extra closing force is not needed, and the closing pressure of the pressure regulator is reduced. In addition, because the required closing force is reduced, the sealing edge surface of the valve port 1 does not need to be too narrow, and the arc sealing surface 11 is used for replacing and reducing the sealing specific pressure of the valve port 1 to the valve clack 4, so that the service life of the valve clack 4 is greatly prolonged.
The utility model provides a gas pressure regulator floating seal disk seat not only is limited to above-mentioned structure, and the all is in the utility model discloses any modification of doing on the basis, equivalent replacement and improvement etc. all should contain within the protection scope of the utility model.
Claims (1)
1. The utility model provides a gas pressure regulator floating seal disk seat, includes valve port, valve rod, its characterized in that: the bottom of valve rod is provided with valve port assorted valve clack seat, valve clack and clamp plate, the rubber seal of valve clack for being equipped with metal framework, the rubber seal upper end is the rubber seal plane, rubber seal lower extreme is the sealed face of O type rubber, the clamp plate lower extreme be provided with the sealed face size assorted boss of O type rubber, valve clack seat upper end plane department be provided with the sealed face assorted recess of O type rubber, valve clack seat center is provided with the internal thread hole, the valve rod bottom be provided with internal thread hole assorted external screw thread, the sealed face of contact of valve port and valve clack is the circular arc sealed face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739935.XU CN209892767U (en) | 2019-05-22 | 2019-05-22 | Floating seal valve seat of gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739935.XU CN209892767U (en) | 2019-05-22 | 2019-05-22 | Floating seal valve seat of gas pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209892767U true CN209892767U (en) | 2020-01-03 |
Family
ID=69001055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920739935.XU Active CN209892767U (en) | 2019-05-22 | 2019-05-22 | Floating seal valve seat of gas pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209892767U (en) |
-
2019
- 2019-05-22 CN CN201920739935.XU patent/CN209892767U/en active Active
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