阅读说明：本技术 具有25MPa的高压呼吸阀 (High-pressure breather valve with pressure of 25MPa ) 是由 许智远 曹立军 田焕莹 于 2019-11-22 设计创作，主要内容包括：一种具有25MPa的高压呼吸阀,连接筒内部为台阶通孔结构,连接筒分别与锥阀座和连接座连接,锥阀座上端与水箱连接在一起,连接座下部内设有进水通道,进水通道上部呈圆锥面空心体,圆锥面上开有第一流道,连接座上部中心设有凹槽,锥阀芯的下部与凹槽内壁相间开的装在凹槽内,锥阀芯与导向杆下端连接在一起,导向杆装在锥阀座中心的通孔内,锥阀座中心有导向孔和气体通道,气体通道内的导向杆外面上套装的弹性件下端与锥阀芯的上端面接触,气体通道上部开有第二流道,伸出导向孔的导向杆上端装有置于水箱内的浮球,结构简单,高速可靠排气、自动即时封严、压力可达25MPa,范围广,效果好,是阀门上的创新,社会和经济效益巨大。(A high-pressure breather valve with 25MPa is characterized in that a step through hole structure is arranged in a connecting cylinder, the connecting cylinder is respectively connected with a conical valve seat and a connecting seat, the upper end of the conical valve seat is connected with a water tank, a water inlet channel is arranged in the lower part of the connecting seat, the upper part of the water inlet channel is a hollow conical surface body, a first flow passage is arranged on the conical surface, a groove is arranged in the center of the upper part of the connecting seat, the lower part of a conical valve core and the inner wall of the groove are alternately arranged in the groove, the conical valve core is connected with the lower end of a guide rod, the guide rod is arranged in a through hole in the center of the conical valve seat, a guide hole and a gas passage are arranged in the center of the conical valve seat, the lower end of an elastic piece sleeved on the outer surface of the guide rod in the gas passage is contacted with the upper end surface of the conical valve core, a second, The pressure can reach 25MPa, the range is wide, the effect is good, the valve is innovative, and the social and economic benefits are huge.)

1. A high-pressure breather valve with 25MPa comprises a connecting seat, a connecting cylinder, a conical valve seat, a water tank and a floating ball, and is characterized in that the connecting seat (1), the connecting cylinder (3), the conical valve seat (6) and the water tank (7) are vertically installed together from bottom to top with the same axis, the inside of the connecting cylinder (3) is of a step through hole structure, the upper end and the lower end of the connecting cylinder (3) are respectively in threaded connection with the lower end of the conical valve seat (6) and the upper end of the connecting seat (1), the upper end of the conical valve seat (6) is in threaded connection with the water tank (7) with an opening at the lower part, the upper part of the water tank (7) is provided with an air outlet (15), the inner center of the lower part of the connecting seat (1) is provided with a water inlet channel (10) with a lower opening, the upper part of the water inlet channel (10) is a hollow body with a conical surface, first flow channels, the lower portion of the conical valve core (2) and the inner wall of the groove are arranged in the groove in an interval mode, the upper end of the conical valve core (2) is connected with the lower end of a vertical guide rod (8) through threads, the guide rod (8) is arranged in a through hole in the center of the conical valve seat (6) in an interval mode, an exhaust channel formed by an upper guide hole (13) and a lower guide hole (13) and a gas channel (12) is arranged in the center of the conical valve seat (6), the diameter of the guide hole (13) is smaller than that of the gas channel (12), the lower end of an elastic piece (5) sleeved on the outer face of the guide rod (8) in the gas channel (12) is in contact with the upper end face of the conical valve core (2), a second flow channel (14) communicated with an annular groove (6-1) in the conical valve seat (6) is arranged on the upper portion of the gas channel (12), and a floating ball (8-1) arranged in the water tank (7.

2. The high pressure breather valve with 25MPa according to claim 1, wherein the lower portion of the gas channel (12) is conical in shape fitting with the central conical surface of the upper portion of the conical valve core (2).

3. The high pressure breather valve with 25MPa according to claim 1, wherein the second flow passage (14) is vertically communicated with the inclined wall surface of the annular groove (6-1).

4. The high-pressure breather valve with the pressure of 25MPa according to claim 1, wherein a first O-ring (1-1) is arranged at the threaded connection position of the connecting cylinder (3) and the connecting seat (1), a second O-ring (6-2) is arranged at the threaded connection position of the connecting cylinder (3) and the conical valve seat (6), and a third O-ring (9) is arranged at the threaded connection position of the conical valve seat (6) and the water tank (7).

5. The high pressure breather valve with 25MPa according to claim 1 or 2, wherein the conical valve core (2) is provided with a fourth O-ring (4).

6. The high pressure respiratory valve of claim 1 wherein the resilient member (5) is a spring.

7. The high pressure breather valve with 25MPa according to claim 1, wherein the conical valve core (2) is an integrated structure with a conical surface at the upper part and a circular body at the lower part.

Technical Field

The invention relates to the technical field of valves, in particular to a high-pressure breather valve with the pressure of 25 MPa.

Background

The breather valve is a common automatic valve for a pipeline and is used for removing air accumulated in the pipeline. However, the float is not fixed, and has poor centering property with the exhaust passage, and the contact sealing performance of the surface of the float and the opening of the exhaust passage is also poor.

On the other hand, for the valve adopting the floating piece, if the wall thickness of the floating ball is too thin, the strength of the floating ball is not enough, and the floating ball is easily extruded by a high-pressure fluid medium to deform and damage; conversely, if the wall thickness of the float ball is too thick, the buoyancy thereof is insufficient, which limits the pressure application range of the breather valve.

In the case of high-speed air intake and exhaust of the breather valve in the prior art, air in the generating pipe is not completely exhausted due to airflow power, and the valve is closed, so that the flow capacity of the pipeline is seriously affected, and therefore, the structure and design of the breather valve in the prior art need to be further improved and innovated.

Disclosure of Invention

In view of the above situation, the present invention provides a high pressure breather valve, which can effectively solve the problem that air cannot be completely removed due to high pressure, and ensure the flow capacity of the pipeline.

In order to achieve the purpose, the technical scheme of the invention is that the 25MPa high-pressure breather valve comprises a connecting seat, a connecting cylinder, a conical valve seat, a water tank and a floating ball, wherein the connecting seat, the connecting cylinder, the conical valve seat and the water tank are vertically installed together from bottom to top with the same axis, a step through hole structure is arranged in the connecting cylinder, the upper end and the lower end of the connecting cylinder are respectively in threaded connection with the lower end of the conical valve seat and the upper end of the connecting seat, the upper end of the conical valve seat is in threaded connection with the water tank with an opening at the lower part, an air outlet is arranged at the upper part of the water tank, a water inlet channel with a lower opening is arranged at the inner center of the lower part of the connecting seat, the upper part of the water inlet channel is a hollow body with a conical surface, first flow channels which are uniformly distributed and communicated with the inside of the connecting cylinder are arranged on the conical surface, a, the guide rods are arranged in a through hole in the center of the conical valve seat in an alternate mode, an exhaust channel formed by an upper guide hole, a lower guide hole and a gas channel is arranged in the center of the conical valve seat, the diameter of the guide hole is smaller than that of the gas channel, the lower end of an elastic piece sleeved on the outer surface of the guide rod in the gas channel is in contact with the upper end face of the conical valve core, a second flow channel communicated with an annular groove in the conical valve seat is formed in the upper portion of the gas channel, and a floating ball arranged in the water tank is mounted at the upper end of the guide rod extending.

The invention has simple structure, high-speed and reliable exhaust, automatic and instant sealing, wide range and good effect, can reach the pressure of 25MPa, is an innovation on valves and has huge social and economic benefits.

Drawings

Fig. 1 is a sectional structural view of the present invention.

Detailed Description

The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings and the detailed description.

As shown in figure 1, the 25MPa high-pressure breather valve comprises a connecting seat, a connecting cylinder, a conical valve seat, a water tank and a floating ball, wherein the connecting seat 1, the connecting cylinder 3, the conical valve seat 6 and the water tank 7 are vertically installed together with the same axis from bottom to top, a step through hole structure is arranged inside the connecting cylinder 3, the upper end and the lower end of the connecting cylinder 3 are respectively in threaded connection with the lower end of the conical valve seat 6 and the upper end of the connecting seat 1, the upper end of the conical valve seat 6 is in threaded connection with the water tank 7 with an opening at the lower part, an air outlet 15 is arranged at the upper part of the water tank 7, a water inlet channel 10 with a lower opening is arranged at the inner center of the lower part of the connecting seat 1, the upper part of the water inlet channel 10 is a hollow conical surface body, first flow channels 11 which are uniformly distributed and communicated with the inside of the connecting cylinder 3 are arranged on the conical surface, a groove is arranged at the center of the upper part, the guide rods 8 are arranged in a through hole at the center of the conical valve seat 6 in an alternate mode, an exhaust channel formed by an upper guide hole 13, a lower guide hole 13 and a gas channel 12 is arranged at the center of the conical valve seat 6, the diameter of the guide hole 13 is smaller than that of the gas channel 12, the lower end of an elastic piece 5 sleeved on the outer surface of the guide rod 8 in the gas channel 12 is contacted with the upper end face of the conical valve core 2, a second flow channel 14 communicated with an annular groove 6-1 on the conical valve seat 6 is arranged at the upper part of the gas channel 12, and a floating ball 8-1 arranged in the water tank 7 is arranged at the upper end of the guide rod 8 extending out.

In order to ensure better implementation effect, the lower part of the gas channel 12 is in a conical shape matched with the central conical surface of the upper part of the conical valve core 2.

The second flow passage 14 is vertically communicated with the inclined wall surface of the annular groove 6-1.

A first O-shaped ring 1-1 is arranged at the threaded connection part of the connecting cylinder 3 and the connecting seat 1, a second O-shaped ring 6-2 is arranged at the threaded connection part of the connecting cylinder 3 and the conical valve seat 6, and a third O-shaped ring 9 is arranged at the threaded connection part of the conical valve seat 6 and the water tank 7.

And a fourth O-shaped ring 4 is arranged on the conical valve core 2.

The elastic member 5 is a spring.

The conical valve core 2 is an integrated structure with the upper part being a conical surface and the lower part being a circular body.

When the device is specifically implemented, the guide hole and the lower part of the conical valve core have positioning and guiding functions on the guide rod, the guide rod is prevented from shaking back and forth left and right in axial movement, the reset effect of the guide rod is enhanced due to the arrangement of the elastic piece, the top bell mouth matched with the conical surface of the conical valve core is arranged at the lower part of the gas channel, the conical surface of the conical valve core is provided with the fourth O-shaped ring, and the contact sealing performance between the conical valve core and the gas channel can be enhanced due to the cooperation of the fourth O-shaped ring and the conical surface at the lower part of the gas channel, so that the influence on normal use caused by the outflow of water from the gas channel is avoided.

The specific use condition of the invention is that when the pipeline starts to fill water, the air originally filled in the pipeline enters the valve body, the air in the valve body enters the valve body from the water inlet channel and the first flow channel under the pushing action of the upward fluid, enters the cavity of the water tank along the air channel and the second flow channel, and is discharged from the air outlet on the water tank, after the air in the pipeline is discharged, the fluid enters the valve body from the water inlet channel and the first flow channel and enters the cavity of the water tank along the air channel and the second flow channel, the floating ball floats up by the buoyancy generated when the water column rises, the floating ball and the guide rod drive the cone valve core to rise to the air channel and gradually and tightly fit with the air channel under the combined action of the buoyancy, the liquid pressure, the spring force and the gravity, at the moment, the valve body is closed, the fluid cannot enter the water tank, and the sealing between the cone valve core and the cone surface at the lower part of, thereby ensuring that the breather valve is kept in a sealed state when the pipeline enters liquid, ensuring that the floating ball can fall down quickly when the pipeline stops water supply, ensuring that the conical valve core moves downwards, ensuring that the lower part of the conical valve core extends into the groove at the upper end of the connecting seat, opening the gas channel, ensuring that air enters the pipeline, preventing the pipeline from being damaged due to vacuum, controlling the conical valve core and the fourth O-shaped ring of the sealing assembly to be far away from or close to the gas channel through the spring and the external water pressure, realizing the conduction and the cut-off of the external water channel and the gas channel, avoiding the condition that the air in the generating pipe is not completely discharged due to airflow power and the air inlet and outlet channel is closed under the double action of avoiding direct impact of a large amount of gas on the floating ball in the matching structure and the structural design, and ensuring that the air is discharged cleanly, meanwhile, the damage of overlarge pressure to the floating ball is avoided.

The invention has simple structure, automatic instant sealing, reliable exhaust, good sealing performance and wide applicable pressure range, is an innovation on the valve, has good effect through practical application tests, effectively solves the problem that air cannot be completely exhausted due to high pressure, ensures the overflowing capacity of the pipeline and has good social and benefits.