CN213393732U - Compound direct-acting pressure reducing valve - Google Patents
Compound direct-acting pressure reducing valve Download PDFInfo
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- CN213393732U CN213393732U CN202022367337.XU CN202022367337U CN213393732U CN 213393732 U CN213393732 U CN 213393732U CN 202022367337 U CN202022367337 U CN 202022367337U CN 213393732 U CN213393732 U CN 213393732U
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- shaped ring
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Abstract
The invention relates to a composite direct-acting pressure reducing valve which sequentially comprises a pressure gauge, an upper cover, a valve core Y-shaped ring, an upper cover O-shaped ring, a valve core sealing gasket, a valve rod, an outlet end, a valve rod O-shaped ring, a diaphragm, a self-locking nut, a lower cover O-shaped ring, a piston Y-shaped ring, a piston, a spring, a lower cover, a spring seat, a locking nut, an adjusting bolt, an inlet end and a valve body.
Description
Technical Field
The utility model relates to a valve field, concretely relates to compound direct action formula relief pressure valve.
Background
With the rapid development of the modern equipment industry in China, the automation equipment is mature day by day, various valves are widely integrated in one set of automation equipment, but a self-operated valve device, namely a pressure reducing valve, capable of automatically adjusting pressure and maintaining pipeline pressure is often needed in the operation process of the equipment.
The pressure reducing valves on the market at present are often in a huge or single sealing mode, for example, the pressure reducing valves used on steam pipelines are often in a membrane structure, are large in size and expensive, are basically imported pressure reducing valves in Japan or Germany, and have high maintenance cost; the other is used on a gas pipeline, although the volume is reduced, the sealing structure is single and is a piston type structure, and the valve belongs to a valve which has high action frequency and automatically operates, so that abrasion and leakage are easily caused.
Disclosure of Invention
To the above problem, the utility model aims at providing a self-operated can guarantee a stable relief pressure valve of pipeline pressure, seal structure adopts composite structure.
The utility model discloses the technical scheme who takes as follows:
a composite direct-acting pressure reducing valve sequentially comprises a pressure gauge, an upper cover, a valve core Y-shaped ring, an upper cover O-shaped ring, a valve core sealing gasket, a valve rod, an outlet end, a valve rod O-shaped ring, a diaphragm, a self-locking nut, a lower cover O-shaped ring, a piston Y-shaped ring, a piston, a spring, a lower cover, a spring seat, a locking nut, an adjusting bolt, an inlet end and a valve body;
the upper part of the upper cover part is connected with the pressure gauge, a vertically movable valve core is arranged in the upper cover part, a valve core Y-shaped ring is arranged in an outer groove of the valve core, and a valve core sealing gasket is arranged at the lower part of the upper cover part; the upper part of the valve body part is connected with the upper cover, an upper cover O-shaped ring is arranged between the valve body part and the upper cover, the lower part of the valve body part is connected with the lower cover, and a lower cover O-shaped ring is arranged between the valve body part and the lower cover; the upper part of the lower cover part is connected with the valve body, the lower part of the lower cover part is connected with an adjusting bolt, and a locking nut is arranged on the adjusting bolt;
further: a valve rod which moves up and down is arranged in the valve body, the upper part of the valve rod is connected with the valve core, a valve core sealing gasket is arranged between the valve rod and the valve core, the lower part of the valve rod is connected with the piston, and a valve rod O-shaped ring is arranged between the valve rod and the valve core;
further: in the piston part, the upper part of the piston is connected with the valve rod, a diaphragm is arranged on the outer side of the upper part of the piston part, a Y-shaped ring of the piston is arranged on the outer side of the lower part of the piston, and a spring is arranged in the piston;
further: the spring is arranged in the inner cavity of the lower cover, the upper part of the spring is connected with the piston, and the lower part of the spring is connected with the spring seat;
further: the outlet end and the inlet end, namely the interface connected with an external pipeline, have threaded connection or fast assembly connection or flange connection, and can meet the connection requirement on more than 98% of the current working conditions.
The utility model discloses, seal structure adopts the combined type that piston and diaphragm combined together, can to a great extent improve the not withstand voltage disappearance with the easy wearing and tearing seepage of piston of single diaphragm to the valve adopts normally open structural design, can guarantee that the valve does not influence outlet pressure when the side pressure unstability once.
Drawings
Fig. 1 is a schematic structural view of a compound direct-acting pressure reducing valve of the present invention;
FIG. 2 is a schematic diagram of a fully closed state of the composite direct-acting pressure reducing valve of the present invention;
FIG. 3 is a schematic view of the composite direct-acting pressure reducing valve according to the present invention in a half-open state;
FIG. 4 is a schematic view of the composite direct-acting pressure reducing valve of the present invention in a fully open state;
in the figure: 1 pressure gauge, 2 upper covers, 3 spool Y-shaped rings, 4 upper cover O-shaped rings, 5 spools, 6 spool sealing gaskets, 7 valve rods, 8 outlet ends, 9 valve rod O-shaped rings, 10 diaphragms, 11 self-locking nuts, 12 lower cover O-shaped rings, 13 piston Y-shaped rings, 14 pistons, 15 springs, 16 lower covers, 17 spring seats, 18 locking nuts, 19 adjusting bolts, 20 inlet ends and 21 valve bodies.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1-4, a composite direct-acting pressure reducing valve sequentially comprises a pressure gauge, an upper cover, a valve core Y-shaped ring, an upper cover O-shaped ring, a valve core sealing gasket, a valve rod, an outlet end, a valve rod O-shaped ring, a diaphragm, a self-locking nut, a lower cover O-shaped ring, a piston Y-shaped ring, a piston, a spring, a lower cover, a spring seat, a locking nut, an adjusting bolt, an inlet end and a valve body;
the upper part of the upper cover part is connected with the pressure gauge, a vertically movable valve core is arranged in the upper cover part, a valve core Y-shaped ring is arranged in an outer groove of the valve core, and a valve core sealing gasket is arranged at the lower part of the upper cover part; the upper part of the valve body part is connected with the upper cover, an upper cover O-shaped ring is arranged between the valve body part and the upper cover, the lower part of the valve body part is connected with the lower cover, and a lower cover O-shaped ring is arranged between the valve body part and the lower cover; the upper part of the lower cover part is connected with the valve body, the lower part of the lower cover part is connected with an adjusting bolt, and a locking nut is arranged on the adjusting bolt;
a valve rod which moves up and down is arranged in the valve body, the upper part of the valve rod is connected with the valve core, a valve core sealing gasket is arranged between the valve rod and the valve core, the lower part of the valve rod is connected with the piston, and a valve rod O-shaped ring is arranged between the valve rod and the valve core; in the piston part, the upper part of the piston is connected with the valve rod, a diaphragm is arranged on the outer side of the upper part of the piston part, a Y-shaped ring of the piston is arranged on the outer side of the lower part of the piston, and a spring is arranged in the piston; the spring is arranged in the inner cavity of the lower cover, the upper part of the spring is connected with the piston, and the lower part of the spring is connected with the spring seat; the outlet end and the inlet end, namely, the interface connected with the external pipeline, have a threaded connection, a quick-assembly connection or a flange connection, which can meet the connection requirement of more than 98% of the current working conditions.
In this embodiment, as shown in fig. 2, i.e., the fully closed state of the valve, it means that the outlet end reaches the set pressure of the valve, so that the valve is closed, and the pressure can be maintained, at this time, the pressure gauge indicates that the pressure is the outlet pressure and is consistent with the set pressure, but as the pressure at the use end is consumed, the valve is half-opened immediately, i.e., as shown in fig. 3, the pressure at the outlet end may decrease instantaneously, but as the spring force of the valve itself acts, the valve core moves upward, the state shown in fig. 4 may occur, i.e., as the fully opened state of the valve, the pressure at the outlet end increases instantaneously to the set pressure, the. The above 3 groups of actions are the automatic adjustment actions of the valve. The valve can automatically adjust the valve opening along with the change of the pressure at the inlet end or the outlet end, thereby ensuring the certain degree of the outlet pressure and the stability of the use pressure of the pipeline.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a compound direct action formula relief pressure valve, includes manometer, upper cover, case Y type circle, upper cover O type circle, case, the sealed pad of case, valve rod, exit end, valve rod O type circle, diaphragm, auto-lock nut, lower cover O type circle, piston Y type circle, piston, spring, lower cover, spring holder, lock nut, adjusting bolt, entry end, valve body, its characterized in that in proper order:
the upper part of the upper cover part is connected with the pressure gauge, a vertically movable valve core is arranged in the upper cover part, a valve core Y-shaped ring is arranged in an outer groove of the valve core, and a valve core sealing gasket is arranged at the lower part of the upper cover part;
the upper part of the valve body part is connected with the upper cover, an upper cover O-shaped ring is arranged between the valve body part and the upper cover, the lower part of the valve body part is connected with the lower cover, and a lower cover O-shaped ring is arranged between the valve body part and the lower cover;
and the upper part of the lower cover part is connected with the valve body, the lower part of the lower cover part is connected with the adjusting bolt, and the adjusting bolt is provided with a locking nut.
2. A compound direct-acting pressure reducing valve according to claim 1, characterized in that: the valve body is internally provided with a valve rod which moves up and down, the upper part of the valve rod is connected with the valve core, a valve core sealing gasket is arranged between the valve rod and the valve core, the lower part of the valve rod is connected with the piston, and a valve rod O-shaped ring is arranged between the valve rod and the valve core.
3. A compound direct-acting pressure reducing valve according to claim 1, characterized in that: in the piston part, the upper part of the piston is connected with the valve rod, a diaphragm is arranged on the outer side of the upper part of the piston part, a Y-shaped ring of the piston is arranged on the outer side of the lower part of the piston, and a spring is arranged in the piston.
4. A compound direct-acting pressure reducing valve according to claim 1, characterized in that: and the spring part is arranged in the inner cavity of the lower cover, the upper part of the spring part is connected with the piston, and the lower part of the spring part is connected with the spring seat.
5. A compound direct-acting pressure reducing valve according to claim 1, characterized in that: the outlet end and the inlet end part, namely the interface form connected with the external pipeline, are in threaded connection or fast assembly connection or flange connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022367337.XU CN213393732U (en) | 2020-10-22 | 2020-10-22 | Compound direct-acting pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022367337.XU CN213393732U (en) | 2020-10-22 | 2020-10-22 | Compound direct-acting pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213393732U true CN213393732U (en) | 2021-06-08 |
Family
ID=76191229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022367337.XU Active CN213393732U (en) | 2020-10-22 | 2020-10-22 | Compound direct-acting pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213393732U (en) |
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2020
- 2020-10-22 CN CN202022367337.XU patent/CN213393732U/en active Active
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