Valve and pump assembly with same
阅读说明:本技术 阀门及具有其的泵组件 (Valve and pump assembly with same ) 是由 陈新志 王惠请 鲁霖懋 崔容占 张辉 于 2018-08-15 设计创作,主要内容包括:本发明提供了一种阀门及具有其的泵组件,其中阀门,包括:阀体,阀体为管状结构,管状结构的第一端为进液口,管状结构的第二端为出液口,阀体的侧壁上设置有泄流口;阀芯,阀芯可移动地设置在阀体内,阀芯具有封堵泄流口的第一位置,阀芯具有封堵进液口的第二位置;阀芯位于第一位置时,阀体的进液口和出液口相连通,阀芯位于第二位置时,阀体的出液口与泄流口相连通。本发明的技术方案有效地解决了现有技术中的泵在启动的时候由于电流过大而导致的烧电机的问题。(The invention provides a valve and a pump assembly with the same, wherein the valve comprises: the valve body is of a tubular structure, a liquid inlet is formed in the first end of the tubular structure, a liquid outlet is formed in the second end of the tubular structure, and a flow discharge port is formed in the side wall of the valve body; the valve core is movably arranged in the valve body and is provided with a first position for plugging the leakage port, and the valve core is provided with a second position for plugging the liquid inlet; when the valve core is positioned at the first position, the liquid inlet and the liquid outlet of the valve body are communicated, and when the valve core is positioned at the second position, the liquid outlet of the valve body is communicated with the drainage port. The technical scheme of the invention effectively solves the problem of motor burning caused by overlarge current when the pump in the prior art is started.)
1. A valve, comprising:
the valve body (10), the valve body (10) is a tubular structure, the first end of the tubular structure is a liquid inlet, the second end of the tubular structure is a liquid outlet, and a drainage port (100) is arranged on the side wall of the valve body (10);
the valve core (20), the valve core (20) is movably arranged in the valve body (10), the valve core (20) has a first position for blocking the leakage port (100), and the valve core (20) has a second position for blocking the liquid inlet;
when the valve core (20) is located at the first position, the liquid inlet of the valve body (10) is communicated with the liquid outlet, and when the valve core (20) is located at the second position, the liquid outlet of the valve body (10) is communicated with the drainage port (100).
2. The valve according to claim 1, wherein the valve core (20) comprises a slide block (21), the slide block (21) is provided with a liquid passing channel (200), when the valve core (20) is located at the first position, the outer wall of the slide block (21) blocks the leakage port (100), and the liquid inlet and the liquid outlet are communicated through the liquid passing channel (200).
3. The valve according to claim 2, wherein the liquid passing channel (200) comprises a liquid passing port arranged on the side wall of the slide block (21) and a hollow structure in the slide block (21), and one end of the slide block (21) close to the liquid inlet is provided with a blocking cover.
4. The valve according to claim 3, wherein the valve body (10) comprises a first valve body section, a second valve body section and a third valve body section in sequence from the inlet to the outlet, the inner diameter of the first valve body section and the inner diameter of the third valve body section are both smaller than the inner diameter of the second valve body section, the slider (21) comprises a first slider section and a second slider section in sequence from the inlet to the outlet, the outer diameter of the first slider section is matched with the inner diameter of the first valve body section, and the outer diameter of the second slider section is matched with the inner diameter of the second valve body section.
5. The valve of claim 4, wherein the fluid passage port is located in a sidewall of the first slider segment.
6. Valve according to claim 4, wherein sealing rings are arranged on both sides of the second slider section, and the bleed port (100) is located between the sealing rings on both sides of the second slider section when the slider (21) is in the first position.
7. The valve according to claim 4, wherein the spool (20) further comprises a sealing ball (22), the hollow structure of the slider (21) comprises a first hollow section, a second hollow section, and a transition section, the first hollow section is closer to the liquid inlet than the second hollow section, the transition section is connected between the first hollow section and the second hollow section, the sealing ball (22) has a diameter larger than an inner diameter of the first hollow section, and the sealing ball (22) has a diameter smaller than an inner diameter of the second hollow section.
8. The valve of claim 7, wherein the liquid-passing port is closer to the liquid inlet than the transition section.
9. Valve according to claim 7, wherein the second end of the slider (21) is provided with a stop to limit the displacement position of the sealing ball (22).
10. A pump assembly comprising a pump body and a valve arranged at a discharge opening of the pump body, characterized in that the valve is a valve according to any one of claims 1 to 9.
Technical Field
The invention relates to the technical field of valves, in particular to a valve and a pump assembly with the valve.
Background
When an electric submersible centrifugal pump, an oil-submersible screw pump, an oil-submersible vane pump and the like are used for lifting a low-yield sand well and a sand outlet well, the low-yield well has low liquid flow rate and is low in the oil pipe, sand mud in crude oil is easy to settle, especially when the pump is stopped, the sand mud in the crude oil in the oil pipe can settle at the outlet of the pump to cause the blockage to bury the pump port, when the pump is started again, the settled sand at the pump port can cause large starting torque and high starting current, and the sand blockage can be caused in serious cases, so that the severe condition of burning a motor can be caused.
When the submersible screw pump is used for lifting thick oil, because the viscosity of the oil is high and the lifting resistance is high, the starting current is 2-3 times higher than the normal running current when the pump is started, and particularly when the pump is operated for a period of time and stopped and restarted, the problem that the pump is difficult to start is often faced.
Disclosure of Invention
The invention mainly aims to provide a valve and a pump assembly with the valve, so as to solve the problem that a motor is burnt due to overlarge current when a pump in the prior art is started.
In order to achieve the above object, according to one aspect of the present invention, there is provided a valve comprising: the valve body is of a tubular structure, a liquid inlet is formed in the first end of the tubular structure, a liquid outlet is formed in the second end of the tubular structure, and a flow discharge port is formed in the side wall of the valve body; the valve core is movably arranged in the valve body and is provided with a first position for plugging the leakage port, and the valve core is provided with a second position for plugging the liquid inlet; when the valve core is positioned at the first position, the liquid inlet and the liquid outlet of the valve body are communicated, and when the valve core is positioned at the second position, the liquid outlet of the valve body is communicated with the drainage port.
Further, the valve core comprises a sliding block, the sliding block is provided with a liquid passing channel, when the valve core is located at the first position, the outer wall of the sliding block seals the leakage port, and the liquid inlet is communicated with the liquid outlet through the liquid passing channel.
Further, the liquid passing channel comprises a liquid passing opening formed in the side wall of the sliding block and a hollow structure in the sliding block, and one end, close to the liquid inlet, of the sliding block is a blocking cover.
Further, the valve body comprises a first valve body section, a second valve body section and a third valve body section in sequence from the liquid inlet to the liquid outlet, the inner diameter of the first valve body section and the inner diameter of the third valve body section are smaller than the inner diameter of the second valve body section, the sliding block comprises a first sliding block section and a second sliding block section in sequence from the liquid inlet to the liquid outlet, the outer diameter of the first sliding block section is matched with the inner diameter of the first valve body section, and the outer diameter of the second sliding block section is matched with the inner diameter of the second valve body section.
Further, the liquid passing port is located on the side wall of the first sliding block section.
Furthermore, sealing rings are arranged on two sides of the second sliding block section, and when the sliding block is located at the first position, the discharge port is located between the sealing rings on the two sides of the second sliding block section.
Further, the case still includes the ball sealer, and the hollow structure of slider includes first cavity section, second cavity section and changeover portion, and the first cavity section is close to the inlet than the second cavity section, and the changeover portion is connected between first cavity section and the second cavity section, and the diameter of ball sealer is greater than the internal diameter of first cavity section, and the diameter of ball sealer is less than the internal diameter of second cavity section.
Further, the liquid passing port is closer to the liquid inlet than the transition section.
Furthermore, the second end of the sliding block is provided with a limiting part to limit the moving position of the sealing ball.
According to another aspect of the present invention, there is provided a pump assembly comprising a pump body and a valve, the valve being disposed at a liquid outlet of the pump body, the valve being as described above.
By applying the technical scheme of the invention, when the pump is started and conveys the fluid mixture, the valve core is pushed to move to the first position by the fluid mixture under the action of the power provided by the pump, so that the fluid mixture is continuously conveyed to the reasonable position. When the pump stops working, the valve core moves to the second position under the action of gravity, and at the moment, the fluid mixture above the drainage port flows out from the drainage port, so that most of the fluid mixture is guided to the outside of the pump, and the condition of burning the motor cannot occur when the pump is restarted. The technical scheme of the invention effectively solves the problem of motor burning caused by overlarge current when the pump in the prior art is started.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a valve according to the invention.
Wherein the figures include the following reference numerals:
10. a valve body; 11. an upper valve body; 12. a lower valve body; 20. a valve core; 21. a slider; 22. a sealing ball; 100. a bleed port; 200. and a liquid passing channel.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
As shown in fig. 1, the valve of the present embodiment includes: a
By applying the technical scheme of the embodiment, when the pump is started and the pump delivers the fluid mixture, the fluid mixture pushes the
It is to be noted that the
As shown in fig. 1, in the technical solution of this embodiment, the
As shown in fig. 1, in the solution of the present embodiment, the
As shown in fig. 1, in the technical solution of this embodiment, the
As shown in fig. 1, in the solution of this embodiment, the liquid passing port is located on the side wall of the first sliding block section. The outer diameter of the first sliding block section is matched with the inner diameter of the first valve body section, so that when the sliding block is located at the second position, the liquid passing port receives the sealing between the outer wall of the first sliding block section and the inner wall of the first valve body section. The above-described configuration ensures that, after the pump is stopped, the fluid mixture flows out of the
As shown in fig. 1, in the solution of the present embodiment, two sides of the second sliding block segment are provided with sealing rings, and when the sliding
As shown in fig. 1, in the technical solution of this embodiment, the
In the technical solution of this embodiment, the second end of the
The application also provides a pump assembly, and the pump assembly includes pump main part and valve, and the valve setting is at the liquid outlet of pump main part. The valve is the valve. With the pump assembly of the present application, the fluid mixture or solids in the fluid mixture do not accumulate as much within the pump, so that the motor of the pump assembly is not easily damaged.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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