CN216589242U - Vacuum one-way valve for pipeline of centrifugal water pump - Google Patents
Vacuum one-way valve for pipeline of centrifugal water pump Download PDFInfo
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- CN216589242U CN216589242U CN202123274377.0U CN202123274377U CN216589242U CN 216589242 U CN216589242 U CN 216589242U CN 202123274377 U CN202123274377 U CN 202123274377U CN 216589242 U CN216589242 U CN 216589242U
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Abstract
The utility model discloses a centrifugal water pump pipeline vacuum one-way valve, which comprises a first valve body, wherein both ends of the first valve body are respectively provided with a water outlet pipe and a water inlet pipe, and one ends of the water outlet pipe and the water inlet pipe, which are far away from the first valve body, are respectively provided with a connecting part; the first valve body consists of a valve body cavity and a sealing ball, the sealing ball is arranged in the valve body cavity, the top end of the valve body cavity is a plane, the lower end of the valve body cavity is a hemispherical surface, and the sealing ball is contacted with the hemispherical surface under the action of self gravity; the hemispherical surface is connected with the water inlet pipe, and a water inlet is formed between the hemispherical surface and the water inlet pipe; the plane is connected with the water outlet pipe, a water outlet is formed between the plane and the water outlet pipe, the water outlet corresponds to the water inlet, and the diameter of the sealing ball is larger than that of the water inlet. The utility model aims at providing a centrifugal water pump pipeline vacuum check valve, when being higher than liquid extraction during operation, at the inside vacuum state that forms of water pump impeller, utilize the principle of negative pressure, the extraction is less than the liquid of the liquid level of water pump at the inside and check valve inside.
Description
Technical Field
The utility model relates to a check valve technical field, more specifically relates to a centrifugal water pump pipeline vacuum check valve.
Background
When the centrifugal water pump pumps water through the impeller, once the inside of the impeller of the water pump is lack of a vacuum environment, the water pump can not normally pump liquid, and the inside of the impeller of the centrifugal water pump is not vacuum and can not pump liquid. The same is true for a general centrifugal water pump higher than the liquid level, when the impeller rotates, the interior of the impeller forms vacuum, so that water is sucked, but after the water pump stops, liquid which is not discharged from the water pump flows back, the air pressure in the pump body is consistent with the outside again, and when water is pumped next time, the water pump needs to idle for a period of time to keep the vacuum state again, so that the energy loss is increased, and the ineffective work of the water pump is increased.
Therefore, how to provide a one-way valve capable of effectively maintaining the stable vacuum state formed inside the water pump becomes a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal water pump pipeline vacuum check valve, when being higher than liquid extraction during operation, at the inside vacuum state that forms of water pump impeller, utilize the principle of negative pressure, the extraction is less than the liquid of the liquid level of water pump at the inside and check valve inside.
According to an aspect of the present invention, there is provided a centrifugal water pump pipeline vacuum check valve, comprising a first valve body, wherein both ends of the first valve body are respectively provided with a water outlet pipe and a water inlet pipe, and both ends of the water outlet pipe and the water inlet pipe, which are far away from the first valve body, are provided with a connecting portion;
the first valve body consists of a valve body cavity and a sealing ball, the sealing ball is arranged in the valve body cavity, the top end of the valve body cavity is a plane, the lower end of the valve body cavity is a hemispherical surface, and the sealing ball is in contact with the hemispherical surface under the action of self gravity; the hemispherical surface is connected with the water inlet pipe, and a water inlet is formed between the hemispherical surface and the water inlet pipe; the plane with go out water piping connection, and form the delivery port between the two, the delivery port with the water inlet corresponds each other, the diameter of ball sealer is greater than the water inlet.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve, the diameter of ball sealer is less than the diameter of hemisphere face.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve, the density of ball sealer is greater than the density of water.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve, the water inlet with distance between the delivery port is greater than the diameter of ball sealer.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve, connecting portion are the pipeline structure, are equipped with the screw thread on its inside wall, just connecting portion with the outlet pipe with the inlet tube intercommunication.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve still includes the second valve body, the structure of second valve body with the structure of first valve body is identical, the hemisphere face of first valve body with the plane of second valve body passes through the intervalve and connects.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve, the diameter of intermediate tube with the inlet tube and the diameter of outlet pipe equals.
Optionally, according to the utility model discloses a centrifugal water pump pipeline vacuum check valve still is equipped with the protecting crust between two connecting portions, the protecting crust will first valve body the second valve body the outlet pipe the inlet tube and including the intervalve parcel.
The utility model discloses a centrifugal water pump pipeline vacuum check valve is being higher than liquid extraction during operation, at the inside vacuum state that forms of water pump impeller and check valve inside, utilizes the principle of negative pressure, and the extraction is less than the liquid of the liquid level of water pump. After the continuous operation of water pump motor, its inside atmospheric pressure is less than external atmospheric pressure, and when external atmospheric pressure was greater than ball sealer and liquid gravity, liquid will get into along with the inlet tube, and when external atmospheric pressure was less than ball sealer and liquid gravity, the ball sealer was plugged up the water inlet, and liquid can't flow back, and the water pump is inside still to be maintained at vacuum state, when opening the water pump next time, can make liquid carry to the water pump inside from the check valve fast.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of a vacuum check valve for a centrifugal water pump pipeline disclosed by the present invention.
Description of reference numerals: 1-a protective shell; 2-a connecting part; 3-water outlet pipe; 4-a first valve body; 5-a middle tube; 6-a second valve body; 7-a sealing ball; 8-water inlet pipe.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to fig. 1, the utility model provides a centrifugal water pump pipeline vacuum check valve, including first valve body 4, the both ends of first valve body 4 are equipped with outlet pipe 3 and inlet tube 8 respectively, and the one end that first valve body 4 was kept away from to outlet pipe 3 and inlet tube 8 all is equipped with connecting portion 2.
The first valve body 4 consists of a valve body cavity and a sealing ball 7, the sealing ball 7 is arranged in the valve body cavity, the top end of the valve body cavity is a plane, the lower end of the valve body cavity is a hemispherical surface, and the sealing ball 7 is contacted with the hemispherical surface under the action of self gravity; the hemispherical surface is connected with the water inlet pipe 8, and a water inlet is formed between the hemispherical surface and the water inlet pipe; the plane is connected with the water outlet pipe 3, a water outlet is formed between the plane and the water outlet pipe, the water outlet corresponds to the water inlet, and the diameter of the sealing ball 7 is larger than that of the water inlet.
When implementing, the utility model discloses being higher than liquid extraction during operation, at the inside vacuum state that forms of water pump impeller and check valve inside, utilize the principle of negative pressure, the extraction is less than the liquid of the liquid level of water pump. After the continuous operation of water pump motor, its inside atmospheric pressure is less than external atmospheric pressure, and when external atmospheric pressure was greater than ball sealer 7 and liquid gravity, liquid will get into along with inlet tube 8, and when external atmospheric pressure was less than ball sealer 7 and liquid gravity, ball sealer 7 plugged up the water inlet, and liquid can't flow back, and the water pump is inside still to be maintained at vacuum state, when opening the water pump next time, can make liquid carry to the water pump inside from the check valve fast.
Further, the diameter of the sealing ball 7 is smaller than that of the hemispherical surface. A gap is ensured between the sealing ball 7 and the valve body cavity, so that liquid can stably flow through the sealing ball 7.
Further, the density of the sealing ball 7 is greater than that of water. Guarantee that ball sealer 7 can be located the bottom of liquid to make the seal with the water inlet shutoff under self gravity and liquid gravity.
Further, the distance between the water inlet and the water outlet is larger than the diameter of the sealing ball 7. Avoid when rivers from water inlet extrusion ball sealer 7 to make it break away from the back from the water inlet, ball sealer 7 directly contacts with the delivery port, thereby takes place the condition of stopping up the delivery port.
Further, connecting portion 2 is the pipeline structure, is equipped with the screw thread on its inside wall, and connecting portion 2 and outlet pipe 3 and inlet tube 8 intercommunication. Connecting portion 2 through the screw thread design is convenient for be connected with the water pump to be favorable to simultaneously the utility model discloses a dismantlement.
Further, the valve also comprises a second valve body 6, the structure of the second valve body 6 is completely the same as that of the first valve body 4, and the hemispherical surface of the first valve body 4 is connected with the plane of the second valve body 6 through an intermediate pipe 5. Can make the adoption through two check valve body the utility model discloses an inside vacuum state that keeps stable of water pump.
Further, the diameter of the intermediate pipe 5 is equal to the diameter of the inlet pipe 8 and the outlet pipe 3. Ensure the synchronous operation of the water inflow and the water outflow.
Further, a protective shell 1 is arranged between the two connecting parts 2, and the first valve body 4, the second valve body 6, the water outlet pipe 3, the water inlet pipe 8 and the middle pipe 5 are wrapped in the protective shell 1. The one-way valve is integrally protected through the protective pipe, and the problem that the one-way valve is easily corroded in air or liquid for a long time can be effectively avoided.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A centrifugal water pump pipeline vacuum one-way valve is characterized by comprising a first valve body, wherein a water outlet pipe and a water inlet pipe are respectively arranged at two ends of the first valve body, and connecting parts are respectively arranged at one ends of the water outlet pipe and the water inlet pipe, which are far away from the first valve body;
the first valve body consists of a valve body cavity and a sealing ball, the sealing ball is arranged in the valve body cavity, the top end of the valve body cavity is a plane, the lower end of the valve body cavity is a hemispherical surface, and the sealing ball is in contact with the hemispherical surface under the action of self gravity; the hemispherical surface is connected with the water inlet pipe, and a water inlet is formed between the hemispherical surface and the water inlet pipe; the plane with go out water piping connection, and form the delivery port between the two, the delivery port with the water inlet corresponds each other, the diameter of ball sealer is greater than the water inlet.
2. The centrifugal water pump pipeline vacuum check valve of claim 1 wherein the diameter of said sealing ball is less than the diameter of said hemispherical surface.
3. The centrifugal water pump pipeline vacuum check valve of claim 1 wherein said sealing ball has a density greater than that of water.
4. The centrifugal water pump pipeline vacuum check valve of claim 1 wherein the distance between said water inlet and said water outlet is greater than the diameter of said sealing ball.
5. The vacuum check valve for centrifugal water pump pipeline of claim 1 wherein said connection portion is a pipeline structure with threads on its inner sidewall and said connection portion is in communication with said water outlet pipe and said water inlet pipe.
6. The centrifugal water pump pipeline vacuum one-way valve of claim 1 further comprising a second valve body, wherein the structure of the second valve body is identical to the structure of the first valve body, and the hemispherical surface of the first valve body is connected with the plane of the second valve body through a middle pipe.
7. The centrifugal water pump pipeline vacuum check valve of claim 6, wherein the diameter of said middle tube is equal to the diameter of said water inlet tube and said water outlet tube.
8. The vacuum check valve for centrifugal water pump pipelines according to claim 7, wherein a protective shell is further disposed between the two connecting portions, and the protective shell covers the first valve body, the second valve body, the water outlet pipe, the water inlet pipe and the middle pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123274377.0U CN216589242U (en) | 2021-12-23 | 2021-12-23 | Vacuum one-way valve for pipeline of centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123274377.0U CN216589242U (en) | 2021-12-23 | 2021-12-23 | Vacuum one-way valve for pipeline of centrifugal water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216589242U true CN216589242U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123274377.0U Active CN216589242U (en) | 2021-12-23 | 2021-12-23 | Vacuum one-way valve for pipeline of centrifugal water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216589242U (en) |
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2021
- 2021-12-23 CN CN202123274377.0U patent/CN216589242U/en active Active
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