CN202937848U

CN202937848U - Slurry pipeline check valve

Info

Publication number: CN202937848U
Application number: CN 201220691733
Authority: CN
Inventors: 吴学民; 张彬; 王旋; 温鹏
Original assignee: SHANDONG HENGYUAN WASTE UTILIZATION CO Ltd
Current assignee: SHANDONG HENGYUAN WASTE UTILIZATION CO Ltd
Priority date: 2012-12-14
Filing date: 2012-12-14
Publication date: 2013-05-15
Anticipated expiration: 2022-12-14

Abstract

The utility model discloses a slurry pipeline check valve. The slurry pipeline check valve comprises a valve body. The valve body is provided with an inner cavity, a feed port and a discharge port, wherein the feed port and the discharge port are communicated with the inner cavity, a ball sealer capable of moving and forming line contact seal matching with the feed port is arranged inside the inner cavity of the valve body, and a ball stopping device is arranged inside the inner cavity of the valve body, wherein the ball stopping device can stop the ball sealer from moving to the discharge port and enable slurry entering from the feed port to bypass or/and penetrate through the ball stopping device and flow to the discharge port. With the structure, the slurry pipeline check valve is simple in structure, low in manufacturing cost and good in check effect.

Description

The slurry pipeline check valve

Technical field

The utility model relates to the pipeline check valve, is specifically related to a kind of slurry pipeline check valve.

Background technique

In Slurry Pipeline Transportation, its sealing means of pipeline check valve commonly used is face contact sealing, adopt end face or conical surface sealing structure, contain graininess impurity in material owing to containing in material, graininess impurity can be attached on sealing surface, cause the pipeline check valve poorly sealed, thereby do not have the effect of complete non-return material.

Summary of the invention

The technical problems to be solved in the utility model is for above-mentioned deficiency, provides a kind of check effective slurry pipeline check valve.

In order to solve the problems of the technologies described above, the utility model provides a kind of slurry pipeline check valve of following structure, comprise that the valve body, the valve body that are provided with inner chamber are provided with material feeding mouth and the discharge port that is communicated with its inner chamber, its structural feature is to be provided with in described body cavity and can moves and can form the ball sealer that line contact sealing coordinates with material feeding mouth, be provided with in body cavity can baffle seal ball move to discharge port and can make the slurry that enters from material feeding mouth walk around the device of blocking that flows to discharge port or/and pass himself.

Form as ball sealer and material feeding mouth a kind of mode that line contact sealing coordinates, described material feeding mouth is large outer little step hole in diameter, and ball sealer can coordinate with the inner formation line contact sealing of aperture in step hole.

The hole wall surface of the aperture of described step hole and the place of joining of step surface form wedge angle.

Form with material feeding mouth the another kind of mode that line contact sealing coordinates as ball sealer, on described material feeding mouth, baffle plate is housed, baffle plate is provided with intake port, and ball sealer can form line contact sealing with the inner of intake port and coordinate.

The place of joining of the hole wall surface of described intake port and the inner side surface of baffle plate forms wedge angle.

For the ease of assembling and maintenance, described valve body is provided with mount inlet, and sealing cover is housed on mount inlet, and the described device of blocking is connected on sealing cover.

As a kind of specific implementation of the device of blocking, the described device of blocking be obliquely installed and and the body cavity wall between leave the baffle plate in space.

Further technological scheme is that described baffle plate is provided with material path.

As the another kind of specific implementation of the device of blocking, the described device of blocking is the fence that is obliquely installed.

The utility model can form line contact sealing with material feeding mouth by ball sealer and coordinate this technological scheme, thereby has realized line contact sealing.In the time of when the slurry material is flowed into valve by material feeding mouth in, the material flowing pressure promotes ball sealer and moves to the device of blocking, stop under the stopping of the device of blocking, and material stream can be walked around or/and pass the device of blocking and arrive discharge port and flow out from discharge port.When the slurry material backflows when entering in valve from discharge port, the material flowing pressure promotes ball sealer and moves to material feeding mouth, because can forming line contact sealing with material feeding mouth, ball sealer coordinates, in the moment that ball sealer engages with material feeding mouth, graininess impurity can be squeezed out the junction point that can not be attached to ball sealer and material feeding mouth, reach hermetic effect, thereby played the purpose that stops the material adverse current to improve transfer efficiency.

In sum, the utility model has the advantage of: simple in structure, fabricating cost is low, and check is effective.

Description of drawings

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that the A in Fig. 1 is a kind of schematic diagram of the device of blocking of structure to view;

Fig. 3 is the schematic diagram of the device of blocking of another kind of structure.

Embodiment

As shown in Figure 1, the slurry pipeline check valve comprises that the valve body 1 that is provided with inner chamber, valve body 1 two ends are respectively equipped with material feeding mouth 2 and the discharge port 3 that is communicated with valve body 1 inner chamber, be provided with in described valve body 1 inner chamber and can move and can form the ball sealer 4 that line contact sealings coordinate with material feeding mouth 2, be provided with energy baffle seal ball 4 in valve body 1 inner chamber and move to discharge port 3 and can make the slurry that enters from material feeding mouth 2 walk around the device 12 of blocking that flows to discharge port 3 or/and pass himself.

Ball sealer 4 can realize that line contact sealing coordinates by following technique measures with material feeding mouth 2.Baffle plate 5 is housed on material feeding mouth 2, baffle plate 5 is provided with intake port 6, the transition position of the inner cavity surface of intake port 6 and baffle plate 5 inner side surfaces is the wedge angle transition, the place of joining that is the hole wall surface of intake port 6 and baffle plate 5 inner side surfaces forms wedge angle, this wedge angle with can form the line contact sealing matching relationship after ball sealer 4 contacts.Certainly, material feeding mouth 2 also can be arranged to large outer little step hole in diameter, the hole wall surface of the aperture in step hole and the place of joining of the step surface in step hole form wedge angle, like this ball sealer 4 with can form the line contact sealing matching relationship after this wedge angle contacts, material feeding mouth 2 is that the situation of step hole is not shown in the drawings.Generally, after processing on object is portalled, the end face at hole inner wall surface and nose end place all can take chamfering or rounding to process, aperture in above-mentioned intake port 6 and step hole does not carry out chamfering or rounding after machining processes, so that the hole wall surface of the aperture in the place of joining of the hole wall surface of intake port 6 and baffle plate 5 inner side surfaces and step hole and the place of joining of the step surface in step hole all form wedge angle, coordinate with the line contact sealing of realizing ball sealer 4.

Valve body 1 top is provided with the mount inlet 7 that is communicated with valve body 1 inner chamber, and sealing cover 8 is housed on mount inlet 7, and the described device 12 of blocking is connected on sealing cover 8.As shown in Figure 2, the device 12 of blocking can be obliquely installed and and valve body 1 internal chamber wall between leave the baffle plate 9 in space, leave the space between baffle plate 9 and valve body 1 internal chamber wall and be in order to allow the slurry material that flows into from material feeding mouth walk around baffle plate 9 and flow to discharge port by this space; In order to improve passing rate, can offer material path 10 on baffle plate 9, like this, the slurry material not only can be walked around baffle plate 9, and can also pass baffle plate 9.The device 12 of blocking can be fence 11 as shown in Figure 3, and fence 11 also is obliquely installed in valve body 1 inner chamber.

As shown in fig. 1, when ball sealer 4 was in solid line position, check valve was in cut-off state, and when ball sealer 4 was in dotted line position, check valve was on state.

Claims

1. slurry pipeline check valve, comprise that the valve body (1), the valve body (1) that are provided with inner chamber are provided with material feeding mouth (2) and the discharge port (3) that is communicated with its inner chamber, it is characterized in that being provided with in described valve body (1) inner chamber and can move and can form the ball sealer (4) that line contact sealing coordinate with material feeding mouth (2), be provided with energy baffle seal ball (4) in valve body (1) inner chamber and move to discharge port (3) and can make the slurry that enters from material feeding mouth (2) walk around the device of blocking that flows to discharge port (3) or/and pass himself.

2. slurry pipeline check valve as claimed in claim 1 is characterized in that: described material feeding mouth (2) is large outer little step hole in diameter, ball sealer (4) can with step hole in the inner of aperture form line contact sealing and coordinate.

3. slurry pipeline check valve as claimed in claim 2, is characterized in that: the hole wall surface of the aperture of described step hole and the place of joining of step surface formation wedge angle.

4. slurry pipeline check valve as claimed in claim 1, it is characterized in that: baffle plate (5) is housed on described material feeding mouth (2), and baffle plate (5) is provided with intake port (6), and ball sealer (4) can form line contact sealing with the inner of intake port (6) and coordinate.

5. slurry pipeline check valve as claimed in claim 4, is characterized in that: the place's of joining formation wedge angle of the inner side surface of the hole wall surface of described intake port (6) and baffle plate (5).

6. slurry pipeline check valve as claimed in claim 1, it is characterized in that: described valve body (1) is provided with mount inlet (7), and sealing cover (8) is housed on mount inlet (7), and the described device of blocking is connected on sealing cover (8).

7. slurry pipeline check valve as described in arbitrary claim in claim 1 to 6 is characterized in that: described block device for be obliquely installed and and valve body (1) internal chamber wall between leave the baffle plate in space.

8. slurry pipeline check valve as claimed in claim 7, it is characterized in that: described baffle plate is provided with material path.

9. slurry pipeline check valve as described in arbitrary claim in claim 1 to 6, it is characterized in that: the described device of blocking is the fence that is obliquely installed.