阅读说明：本技术 轴流式止回阀 (Axial flow type check valve ) 是由 王良 于 2021-08-30 设计创作，主要内容包括：本发明涉及一种轴流式止回阀,包括：在第一阀体与第二阀体之间的空腔内固定导流部件；在导流部件上设置单向部件；单向部件的一端抵住第一阀体的进口；阀瓣在弹簧的缓冲作用下,无撞击阀体或支架,介质压力波动时,阀瓣无振动,因此,阀门使用时无噪音,无水锤现象；导流体和阀瓣在打开时,导流体和阀瓣外形完全符合理论水滴型,介质无紊流,流阻无限接进理论最小值,以及进口及体腔设计流通面积足够大,不影响介质流通能力,保证流量；改变了现有技术中止回阀使用时会有噪音,有水锤现象；导流体和阀瓣在打开时,不符合理论水滴型,介质紊流,流阻最大,压力损失严重,影响介质流通能力,不能保证流量的技术问题。(The present invention relates to an axial flow check valve comprising: a flow guide part is fixed in a cavity between the first valve body and the second valve body; a one-way component is arranged on the flow guide component; one end of the one-way component props against the inlet of the first valve body; the valve clack does not impact the valve body or the bracket under the buffer action of the spring, and the valve clack does not vibrate when medium fluctuates, so that the valve is free of noise and water hammer when in use; when the flow guide body and the valve clack are opened, the shapes of the flow guide body and the valve clack completely conform to theoretical water drop shapes, the medium has no turbulent flow, the flow resistance is infinitely connected into the theoretical minimum value, and the designed flow areas of the inlet and the body cavity are large enough, so that the flow capacity of the medium is not influenced, and the flow is ensured; the phenomena of noise and water hammer in the use of the stop return valve in the prior art are changed; when the flow guide body and the valve clack are opened, the flow guide body and the valve clack are not in line with the theoretical water drop type, the medium turbulence is maximum, the flow resistance is maximum, the pressure loss is serious, the medium circulation capacity is influenced, and the flow can not be ensured.)

1. An axial flow check valve, comprising:

a first valve body;

the second valve body is used for fixing a flow guide part in a cavity between the first valve body and the second valve body;

the one-way component is arranged on the flow guide component; one end of the one-way component is propped against the inlet of the first valve body.

2. The axial flow check valve of claim 1, wherein said first valve body further comprises:

a first cavity from large to small is arranged at the inlet of the first valve body along a preset axis; a first sealing ring is arranged on one side of the first cavity; the first sealing ring is provided with a second cavity from small to large along the direction of a preset axis.

3. The axial flow check valve of claim 1, wherein said second valve body further comprises:

a third cavity from big to small is arranged on one side of the second valve body along a preset axis; the flow guide component is arranged in the third cavity.

4. The axial check valve of claim 1, wherein said flow directing member further comprises:

a bracket for fixing the bracket between the first valve body and the second valve body;

the guide body is arranged on the bracket along a preset axis; the flow guide body is arranged from large to small along the preset axis;

the outlet cylinder is fixed at the minimum position of the flow guide body;

the valve sleeve is longitudinally fixed in the flow guide body; a through hole is arranged on the valve sleeve along a preset axis; a boss is arranged on one side of the through hole.

5. The axial flow check valve of claim 4, wherein said one-way member further comprises:

the valve clack penetrates into one end of the valve clack in the through hole, and a spring is sleeved on the valve clack between the valve clack and the boss.

6. The axial flow check valve of claim 4, wherein a gasket is inserted between both sides of the bracket and the first and second valve bodies and fixed to nuts provided at both sides of the first and second valve bodies by bolts inserted into bolt through holes provided at the first and second valve bodies.

7. The axial flow check valve of claim 4, wherein the valve flap is disposed on one side thereof in an elliptical shape and a second sealing ring is disposed in contact with the first cavity; the second sealing ring is contacted with the first sealing ring, and sealing is formed under the action of the spring.

8. The axial flow check valve of claim 6, wherein bolt securing holes are provided on both sides of said first valve body and said second valve body.

Technical Field

Embodiments of the present invention relate to check valves, and more particularly, to an axial flow check valve.

Background

The general axial flow check valve in the prior art is of an integrated structure, the inlet path of the check valve is reduced, the flow resistance is increased, and a flow guide body cannot be processed; the flow, the flow resistance and the structure position of the flow guide body are relatively fixed, and the valve clack vibrates when medium pressure fluctuates, so that the check valve has noise and water hammer when in use; when the flow guide body and the valve clack are opened, the flow guide body and the valve clack are completely not in accordance with theoretical water drop shapes, medium turbulence, maximum flow resistance and serious pressure loss are caused, the designed flow areas of the inlet and the body cavity are not large enough, the medium flow capacity is influenced, and the flow can not be ensured.

Disclosure of Invention

The invention aims to provide an axial flow check valve which is of a two-body structure, wherein two valve bodies fix a support, a guide body, a valve clack and a spring are arranged on the support, the inlet of the check valve is of a full-diameter, a sealing ring is fixed on the valve bodies, the size of a valve cavity can be designed according to the size of flow, and the guide body and the valve clack can be processed, so that the defects of the axial flow check valve in the prior art are overcome.

In order to achieve the above object, an embodiment of the present invention provides an axial flow check valve, including:

a first valve body;

the second valve body is used for fixing a flow guide part in a cavity between the first valve body and the second valve body;

the one-way component is arranged on the flow guide component; one end of the one-way component is propped against the inlet of the first valve body.

Further, the first valve body still includes:

a first cavity from large to small is arranged at the inlet of the first valve body along a preset axis; a first sealing ring is arranged on one side of the first cavity; the first sealing ring is provided with a second cavity from small to large along the direction of a preset axis.

Further, the second valve body further includes:

a third cavity from big to small is arranged on one side of the second valve body along a preset axis; the flow guide component is arranged in the third cavity.

Further, the flow guide part further comprises:

a bracket for fixing the bracket between the first valve body and the second valve body;

the guide body is arranged on the bracket along a preset axis; the flow guide body is arranged from large to small along the preset axis;

the outlet cylinder is fixed at the minimum position of the flow guide body;

the valve sleeve is longitudinally fixed in the flow guide body; a through hole is arranged on the valve sleeve along a preset axis; a boss is arranged on one side of the through hole;

the valve clack penetrates into one end of the valve clack in the through hole, and a spring is sleeved on the valve clack between the valve clack and the boss.

Furthermore, gaskets are embedded between two sides of the support and the first valve body and between two sides of the support and the second valve body, bolts penetrate through bolt through holes formed in the first valve body and the second valve body, and the bolts are fixed with nuts arranged on two sides of the first valve body and the second valve body.

Furthermore, one side of the valve clack is arranged into an ellipse shape, and a second sealing ring is arranged at the position where the valve clack is contacted with the first cavity; the second sealing ring is contacted with the first sealing ring, and sealing is formed under the action of the spring.

Further, bolt fixing holes are formed in the two sides of the first valve body and the second valve body. .

Embodiments of the present invention also compare to the prior art,

when the axial-flow type check valve is opened and closed, the valve clack does not impact a valve body or a support under the buffering action of the spring, and the valve clack does not vibrate when medium fluctuates, so that the check valve is free of noise and water hammer when in use; when the flow guide body and the valve clack are opened, the shape design and processing of the flow guide body and the valve clack completely conform to the theoretical water drop shape, the medium has no turbulent flow, the flow resistance is infinitely connected into the theoretical minimum value, and the designed flow area of the inlet and the body cavity is large enough, so that the flow capacity of the medium is not influenced, and the flow is ensured. Therefore, the axial flow type check valve has no noise and little flow resistance when being opened and closed, changes the common axial flow type check valve in the prior art, has an integrated structure, has a reduced inlet passage diameter, reduced flow and increased flow resistance, and can not process a flow guide body; the flow, the flow resistance and the structure position of the flow guide body are relatively fixed, and the valve clack vibrates when medium pressure fluctuates, so that the check valve has noise and water hammer when in use; when the flow guide body and the valve clack are opened, the flow guide body and the valve clack are completely not in accordance with theoretical water drop shapes, medium turbulence, maximum flow resistance and serious pressure loss, and the designed flow areas of the inlet and the body cavity are not large enough, so that the medium flow capacity is influenced, and the flow cannot be ensured.

Drawings

FIG. 1 is a schematic view of an axial flow check valve of the present invention in an open configuration;

fig. 2 is a schematic view of the axial flow check valve of the present invention in a closed configuration.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

An embodiment of the present invention relates to an axial flow check valve, as shown in fig. 1 and 2, including:

the first valve body 1 serves as a body on one side of the axial flow check valve in the present embodiment; the second valve body 2 serves as a body on the other side of the axial flow check valve in the present embodiment; the first valve body 1 and the second valve body 2 form a two-body structure of the axial flow check valve in the present embodiment.

Fixing a flow guide part 20 in a cavity between the first valve body 1 and the second valve body 2; a unidirectional member 30, wherein the unidirectional member 30 is provided on the flow guide member 30; one end of the check member 30 abuts against the inlet of the first valve body 1.

The flow guide component 20 is used for guiding the medium, so that the medium has no noise and water hammer when in use; when the diversion component 20 and the one-way component 30 are opened, the appearance design and processing of the diversion component 20 and the one-way component 30 completely conform to the theoretical water drop type, the medium has no turbulent flow, the flow resistance is infinitely connected into the theoretical minimum value, and the designed flow area of the inlet and the body cavity is large enough, thereby not influencing the medium flow capacity and ensuring the flow. The general axial flow type check valve in the prior art is changed, the check valve is of an integrated structure, the inlet path of the check valve is reduced, the flow resistance is increased, and a flow guide body cannot be processed; the flow, the flow resistance and the structure position of the flow guide body are relatively fixed, and the valve clack vibrates when medium pressure fluctuates, so that the check valve has noise and water hammer when in use; when the flow guide body and the valve clack are opened, the flow guide body and the valve clack are completely not in accordance with theoretical water drop shapes, medium turbulence, maximum flow resistance and serious pressure loss, and the designed flow areas of the inlet and the body cavity are not large enough, so that the medium flow capacity is influenced, and the flow cannot be ensured.

In order to achieve the above technical effects, as shown in fig. 1 and 2, the first valve body 1 further includes:

a first cavity 11 from big to small is arranged at the inlet of the first valve body 1 along a preset axis; a first sealing ring 12 is arranged at one side of the first cavity 11; a second cavity 13 is arranged on the first sealing ring 12 along the direction of the preset axis from small to large. The preset axis in this embodiment is the central axis of the axial flow check valve in this embodiment.

Similarly, in order to achieve the above technical effects, as shown in fig. 1 and 2, the second valve body 2 further includes:

a third cavity 21 with the size from large to small is arranged on one side of the second valve body 2 along a preset axis; the flow guide member 20 is disposed in the third cavity 21.

Thus, the first and second cavities 11 and 13 of the first valve body 1 and the third cavity 21 of the second valve body 2 form a large cavity inside the first and second valve bodies 1 and 2, so that the guide member 20 and the check member 30 in this embodiment can be installed in the large cavity.

In order to achieve the above technical effects, as shown in fig. 1 and 2, the flow guide member 20 further includes:

a bracket 7 is fixed between the first valve body 1 and the second valve body 2; the bracket 7 is mainly used for fixing the flow guide part 20;

arranging a flow guide body 3 on the bracket 7 along a preset axis; the flow guide body 3 is arranged from large to small along a preset axis; the structure of the flow guiding body 3 with large and small sizes mainly plays a role in the passing of fluid, as shown in figure 2, the shapes of the flow guiding part 20 and the one-way part 30 completely conform to the theoretical water drop shape, so that the medium has no turbulent flow, the flow resistance is infinitely connected into the theoretical minimum value, and the designed flow area of the inlet and the body cavity is large enough, so that the flow capacity of the medium is not influenced, and the flow is ensured.

The outlet cylinder 22 is fixed at the minimum of the flow conductor 3; the outlet cylinder 22 primarily serves as a flow guide.

In order to achieve the above technical effects, as shown in fig. 1 and 2, a valve sleeve 4 is longitudinally fixed inside the flow conductor 3; a through hole 41 is arranged on the valve sleeve 4 along a preset axis; a boss 42 is arranged at one side of the through hole 41; the valve sleeve 4 mainly functions to fix the one-way member 30.

In order to achieve the technical effect, as shown in fig. 1 and 2, one end of the valve flap 6 penetrates into the through hole 42, and a spring 5 is sleeved on the valve flap 6 between the valve flap 6 and the boss 42. The valve clack 6 plays a role in one-way flow guiding under the action of a spring.

In order to achieve the above technical effects, as shown in fig. 1 and 2, a gasket 8 is inserted between the first valve body 1 and the second valve body 2 and between both sides of the bracket 7, and is fixed to nuts 10 provided on both sides of the first valve body 1 and the second valve body 2 by bolts 9 inserted into bolt through holes 14 provided on the first valve body 1 and the second valve body 2. The above structure fixes the bracket 7 between the first valve body 1 and the second valve body 2.

In order to achieve the technical effects, as shown in fig. 1 and 2, in order to achieve that the outer shapes of the flow component 20 and the one-way component 30 completely conform to the theoretical water drop shape, one side of the valve flap 6 is provided with an ellipse shape, and a second sealing ring 15 is arranged at the contact part of the second sealing ring and the first cavity 11; the second sealing ring 15 is in contact with the first sealing ring 12, and forms sealing under the action of the spring 5, so that the function of one-way conduction of the axial flow type check valve in the embodiment is realized, the medium has no turbulent flow in the conduction process, the flow resistance is infinitely connected into the theoretical minimum value, the designed flow area of an inlet and a body cavity is large enough, the medium flow capacity is not influenced, and the flow is ensured.

In order to achieve the above technical effects, as shown in fig. 1 and 2, bolt fixing holes 16 are provided at both sides of the first valve body 1 and the second valve body 2 in order to facilitate mounting of the axial flow type check valve in the present embodiment.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.