CN217634095U

CN217634095U - Multi-stage sealed high-pressure air inlet and outlet valve

Info

Publication number: CN217634095U
Application number: CN202221553276.9U
Authority: CN
Inventors: 张彪
Original assignee: Zhejiang Taoyuan Copper Co ltd
Current assignee: Zhejiang Taoyuan Copper Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-10-21
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses a multistage sealed high pressure inlet and outlet valve, including cylindric casing, supreme primary seal subassembly and the secondary seal subassembly of having set gradually is down followed in the casing, primary seal subassembly's bottom is provided with the floater, the top of casing is provided with the roof, the center department of roof is the air vent, primary seal subassembly includes that center department sets up the primary seal board and the supporting stagnant water board of through-hole, secondary seal subassembly includes that center department sets up the secondary seal piece and the supporting stagnant water block of through-hole, the stagnant water block is located under the stagnant water board and connects through the straight-bar, the bottom at the stagnant water board is fixed to the floater, this multistage sealed high pressure inlet and outlet valve adopts multistage seal structure, sealing performance is improved, guarantee the operating stability of hot-water heating system, valve life has also been improved, maintenance frequency is reduced, the practicality is better, still be provided with the extension spring and be used for guaranteeing that primary seal subassembly and secondary seal subassembly are all in non-sealed state when exhausting, make gas discharge smoothly.

Description

Multi-stage sealed high-pressure air inlet and outlet valve

Technical Field

The utility model relates to the technical field of valves, specifically be a multistage sealed high pressure inlet and outlet valve.

Background

In hot-water heating system, the air in the inlet and outlet valve can discharge the pipeline rapidly when the pipeline fills water, make the pipeline fill water rapidly, can mend the air rapidly when producing the negative pressure in the pipeline, avoid producing the negative pressure in the pipeline, 10MPa inlet and outlet valve belongs to high-pressure pipeline water delivery field, be one kind and be exclusively used in the inlet and outlet device on the long distance water supply high-pressure line, at present domestic inlet and outlet valve commonly used is mostly monopole sealed, long-time operation back sealing department is easy ageing, wearing and tearing, lose sealing performance, life is short.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a multistage sealed high pressure air inlet and exhaust valve, adopt multistage seal structure, improve sealing performance and stability, improve valve life, reduce maintenance frequency, the practicality is better, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multistage sealed high pressure air inlet and exhaust valve, including cylindric casing, supreme primary seal subassembly and the secondary seal subassembly of having set gradually is followed to the follow in the casing, primary seal subassembly's bottom is provided with the floater, the top of casing is provided with the roof, the center department of roof is the air vent, primary seal subassembly includes that center department sets up the primary closing plate and the supporting stagnant water board of through-hole, secondary seal subassembly includes that center department sets up the secondary seal piece and the supporting stagnant water piece of through-hole, the stagnant water piece is located under the stagnant water board and connects through the straight-bar, the bottom at the stagnant water board is fixed to the floater.

As an optimal technical scheme of the utility model, the outside of casing is provided with the collar, is provided with the mounting hole on the collar.

As an optimized technical scheme of the utility model, be provided with in the air vent and be used for dirt-proof filter screen.

As an optimal technical scheme of the utility model, be provided with the sealing ring between stagnant water board and the primary closing plate, the lower bottom surface of primary closing plate is provided with the ring channel that is used for fixed seal ring, and the opening width of ring channel is less than the tank bottom width, and first card of sealing ring is in the ring channel.

As a preferred technical scheme of the utility model, the central through hole of secondary sealed piece and stagnant water piece are big-end-up's toper, are provided with the gasket on the inner wall of secondary sealed piece central through hole.

As a preferred technical scheme of the utility model, the outside cover of straight-bar is equipped with the extension spring, and the one end and the stagnant water piece of extension spring are connected, and the other end is connected with primary closing plate.

Compared with the prior art, the beneficial effects of the utility model are that: this multistage sealed high pressure air inlet and exhaust valve adopts multistage seal structure, improves sealing performance, guarantees hot-water heating system's operating stability, has also improved valve life, reduces the maintenance frequency, and the practicality is better, still is provided with the extension spring and is used for guaranteeing that primary seal subassembly and secondary seal subassembly all are in non-sealing state when exhausting for gas can discharge smoothly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the sealing device comprises a shell 1, a mounting ring 2, a primary sealing assembly 3, a primary sealing plate 31, a water stop plate 32, a sealing ring 33, a secondary sealing assembly 4, a secondary sealing block 41, a water stop block 42, a sealing sheet 43, a top plate 5, a vent hole 6, a filter screen 7, a floating ball 8, a tension spring 9 and a straight rod 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a multi-stage sealed high-pressure air inlet and outlet valve comprises a cylindrical shell 1, a mounting ring 2 is arranged outside the shell 1, a mounting hole is arranged on the mounting ring 2, a primary sealing component 3 and a secondary sealing component 4 are sequentially arranged in the shell 1 from bottom to top, the sealing performance can be improved by a two-stage sealing structure, the operation stability of a water heating system is ensured, the service life of the valve is prolonged, the maintenance frequency is reduced, the practicability is better, a floating ball 8 is arranged at the bottom of the primary sealing component 3, a top plate 5 is arranged at the top of the shell 1, an air vent 6 is arranged at the center of the top plate 5, a dustproof filter screen 7 is arranged in the air vent 6 so as to prevent sundries from entering a pipeline from the air vent 6 when air is fed, the primary sealing component 3 comprises a primary sealing plate 31 with a through hole at the center and a matched water stopping plate 32, and a sealing ring 33 is arranged between the water stopping plate 32 and the primary sealing plate 31, the lower bottom surface of the primary sealing plate 31 is provided with an annular groove for fixing the sealing ring 33, the opening width of the annular groove is smaller than the width of the groove bottom, the upper half part of the sealing ring 33 is clamped in the annular groove to effectively avoid the sealing ring 33 from falling off, the secondary sealing component 4 comprises a secondary sealing block 41 with a through hole at the center and a matched water stop block 42, the central through hole of the secondary sealing block 41 and the water stop block 42 are both in a conical shape with the large top and the small bottom, the sealing area can be increased, the sealing effect is ensured, a sealing sheet 43 is arranged on the inner wall of the central through hole of the secondary sealing block 41 to ensure the sealing effect, the water stop block 42 is positioned under the water stop plate 32 and is connected through a straight rod 10, the floating ball 8 is fixed at the bottom of the water stop plate 32, the valve body is vertically installed, the primary sealing component 3 and the secondary sealing component 4 are in a non-sealing state under the action of gravity, when liquid in a pipeline rises, the floating ball 8 is upwards moved under the buoyancy, promote stagnant water board 32 and stagnant water piece 42 and shift up to form sealedly, reach the self-bleeding purpose, when there is air or negative pressure in the pipeline, stagnant water board 32 and stagnant water piece 42 break away from primary sealing plate 31 and secondary sealing piece 41 under gravity or extension spring 9's effect again, play the automatic effect of admitting air, the outside cover of straight-bar 10 is equipped with extension spring 9, the one end and the stagnant water piece 42 of extension spring 9 are connected, the other end is connected with primary sealing plate 31, extension spring 9 is used for guaranteeing that primary seal subassembly 3 and secondary seal subassembly 4 all are in non-sealing state when the exhaust, make gas can discharge smoothly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multistage sealed high pressure air inlet and outlet valve which characterized in that:

the sealing device comprises a cylindrical shell (1), wherein a primary sealing assembly (3) and a secondary sealing assembly (4) are sequentially arranged in the shell (1) from bottom to top, a floating ball (8) is arranged at the bottom of the primary sealing assembly (3), a top plate (5) is arranged at the top of the shell (1), and a vent hole (6) is formed in the center of the top plate (5);

the primary sealing assembly (3) comprises a primary sealing plate (31) with a through hole in the center and a matched water stopping plate (32), the secondary sealing assembly (4) comprises a secondary sealing block (41) with a through hole in the center and a matched water stopping block (42), the water stopping block (42) is located under the water stopping plate (32) and connected through a straight rod (10), and the floating ball (8) is fixed to the bottom of the water stopping plate (32).

2. The multi-stage sealed high-pressure intake and exhaust valve according to claim 1, wherein: the outer portion of the shell (1) is provided with a mounting ring (2), and a mounting hole is formed in the mounting ring (2).

3. The multi-stage sealed high-pressure intake and exhaust valve according to claim 1, wherein: and a dustproof filter screen (7) is arranged in the vent hole (6).

4. The multi-stage sealed high-pressure air inlet and outlet valve according to claim 1, wherein: a sealing ring (33) is arranged between the water stop plate (32) and the primary sealing plate (31), an annular groove used for fixing the sealing ring (33) is formed in the lower bottom surface of the primary sealing plate (31), the opening width of the annular groove is smaller than the width of the groove bottom, and the upper half part of the sealing ring (33) is clamped in the annular groove.

5. The multi-stage sealed high-pressure intake and exhaust valve according to claim 1, wherein: the central through hole of the secondary sealing block (41) and the water stop block (42) are both in a conical shape with a large top and a small bottom, and a sealing sheet (43) is arranged on the inner wall of the central through hole of the secondary sealing block (41).

6. The multi-stage sealed high-pressure intake and exhaust valve according to claim 1, wherein: the outside cover of straight-bar (10) is equipped with extension spring (9), and the one end and the stagnant water piece (42) of extension spring (9) are connected, and the other end is connected with primary closing plate (31).