Polymer mother liquor flow controller

Abstract

The utility model discloses a polymer mother liquor flow controller which comprises a valve body, a valve cover, a valve rod and a valve element, the valve cover is installed at the top end of the valve body, the valve rod penetrates through the center of the top end of the valve cover, the bottom end of the valve rod extends into the valve body, the valve element is arranged in the valve body, and the bottom end of the valve rod is fixedly connected with the top end of the valve element. A linear motor is fixed to the top end of the valve body, the output end of the linear motor is fixedly connected with the top end of the valve rod, a displacement sensor is fixedly installed at the output end of the linear motor, and a displayer for displaying data of the displacement sensor is fixedly installed on the outer side of the valve deck. The outer side of the corrugated column is corrugated, the corrugated column is located in the valve body and close to a mother liquor outlet of the valve body, a mother liquor inlet communicated with the interior of the valve body is formed in one side of the top end of the valve body, and the valve body is in clearance fit with the valve element. Displacement of the valve rod can be detected so that flow control of the valve element can be known conveniently, and the mother liquor viscosity retention effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of flow controllers, in particular to a polymer mother liquid flow controller. Background Art

[0002] As one of the important technical measures for stabilizing production in old oil fields in eastern my country, polymer flooding tertiary oil recovery is being promoted and applied on a large scale in industrialization. Since polymer flooding has the characteristics of high investment and high economic risk, in order to reduce investment, reduce risk and improve the overall economic benefits of polymer flooding, it is necessary to optimize the polymer injection process. To achieve the optimization of the polymer injection process, the flow distribution and regulation of the polymer solution is essential. The existing polymer flow regulator cannot accurately know the descent distance of the valve core when the regulating valve stem drives the valve core to descend, so the control accuracy of the flow is not high. Utility Model Content

[0003] The purpose of the present application is to provide a polymer mother liquid flow controller to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a polymer mother liquid flow controller, comprising a valve body, a valve cover, a valve stem and a valve core, a valve cover is installed on the top of the valve body, a valve stem is inserted into the center of the top of the valve cover, the bottom end of the valve stem extends to the interior of the valve body, a valve core is provided inside the valve body, the bottom end of the valve stem is fixedly connected to the top end of the valve core, a linear motor is fixedly installed on the top of the valve body, the output end of the linear motor is fixedly connected to the top end of the valve stem, a displacement sensor is fixedly installed on the output end of the linear motor, a display displaying displacement sensor data is fixedly installed on the outside of the valve cover, the valve core is in the shape of a cone with a larger top and a smaller bottom, a corrugated column is fixedly installed on the bottom end of the valve core, the outer side of the corrugated column is corrugated, the corrugated column is located inside the valve body near the mother liquid outlet of the valve body, a mother liquid inlet connected to the interior of the valve body is provided on one side of the top end of the valve body, and the valve body and the valve core are clearance-matched.

[0005] Preferably, the outer cover of the linear motor is provided with a heat dissipation cover installed with a heat dissipation material, and the heat dissipation cover is fixedly connected to the valve cover.

[0006] Preferably, the valve cover and the valve body are detachably connected via bolts.

[0007] Preferably, a sealing sleeve is fixedly installed inside the valve cover, and the sealing sleeve is sleeved on the outside of the valve stem.

[0008] In summary, the technical effects and advantages of the utility model are:

[0009] The utility model has reasonable design, simple structure, convenient operation, low manufacturing cost and is conducive to production. The valve core of the utility model adopts a special conical mechanical structure, so that the liquid flowing through the interior can achieve ultra-low shear, thereby maintaining the polymer at the mother liquid outlet with a higher viscosity. The corrugated column of the corrugated structure connected to the bottom of the valve core can slow down the flow rate of the mother liquid, further improve the polymer viscosity at the mother liquid outlet, and control the position of the valve core through the linear motor to control the flow of the mother liquid. The valve stem position is detected by a displacement sensor and displayed on a display, helping the operator to accurately control the flow of the mother liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the structure of a polymer mother liquor flow controller in an embodiment of the present application.

[0012] In the figure: 1. valve body; 2. valve cover; 3. linear motor; 4. valve stem; 5. valve core; 6. displacement sensor; 7. display; 8. mother liquid inlet; 9. mother liquid outlet; 10. corrugated column; 11. sealing sleeve; 12. bolt; 13. heat dissipation cover. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0015] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0016] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0017] Example: Reference Figure 1A polymer mother liquid flow controller shown in the figure comprises a valve body 1, a valve cover 2, a valve stem 4 and a valve core 5, wherein the valve cover 2 is installed at the top of the valve body 1, the valve stem 4 is inserted into the center of the top of the valve cover 2, the bottom end of the valve stem 4 extends to the inside of the valve body 1, a valve core 5 is provided inside the valve body 1, the bottom end of the valve stem 4 is fixedly connected to the top of the valve core 5, a linear motor 3 is fixedly installed at the top of the valve body 1, the output end of the linear motor 3 is fixedly connected to the top of the valve stem 4, a displacement sensor 6 is fixedly installed at the output end of the linear motor 3, a display 7 displaying the data of the displacement sensor 6 is fixedly installed on the outer side of the valve cover 2, the valve core 5 is in a cone shape with a larger top and a smaller bottom, a corrugated column 10 is fixedly installed at the bottom end of the valve core 5, and the outer side of the corrugated column 10 is corrugated, The corrugated column 10 is located inside the valve body 1 near the mother liquid outlet 9 of the valve body 1. A mother liquid inlet 8 connected to the inside of the valve body 1 is provided on one side of the top end of the valve body 1. The valve body 1 and the valve core 5 are clearance-matched. The valve core adopts a special conical mechanical structure so that the liquid flowing through it can achieve ultra-low shear, thereby maintaining a high viscosity of the polymer at the mother liquid outlet. The corrugated column of the corrugated structure connected to the bottom of the valve core can slow down the flow rate of the mother liquid and further increase the viscosity of the polymer at the mother liquid outlet. The valve stem is driven by a linear motor to control the position of the valve core and thus control the flow rate of the mother liquid. The valve stem position is detected by a displacement sensor and displayed on a display to help the operator accurately control the flow rate of the mother liquid. The mother liquid enters the interior of the valve body from the mother liquid inlet and is then discharged from the mother liquid outlet through the valve core and the corrugated column.

[0018] With the above structure, the outer cover of the linear motor 3 is provided with a heat dissipation cover 13 with heat dissipation material, and the heat dissipation cover 13 is fixedly connected to the valve cover 2, and the heat dissipation cover protects and dissipates heat for the linear motor.

[0019] With the above structure, the valve cover 2 and the valve body 1 are detachably connected via bolts 12 .

[0020] With the above structure, a sealing sleeve 11 is fixedly installed inside the valve cover 2, and the sealing sleeve 11 is sleeved on the outside of the valve stem 4 for dynamic sealing protection.

[0021] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polymer mother liquid flow controller, comprising a valve body (1), a valve cover (2), a valve stem (4) and a valve core (5), characterized in that: A valve cover (2) is mounted on the top of the valve body (1), a valve stem (4) is inserted into the center of the top of the valve cover (2), the bottom of the valve stem (4) extends into the interior of the valve body (1), a valve core (5) is provided inside the valve body (1), the bottom of the valve stem (4) is fixedly connected to the top of the valve core (5), a linear motor (3) is fixedly mounted on the top of the valve body (1), the output end of the linear motor (3) is fixedly connected to the top of the valve stem (4), and a displacement sensor is fixedly mounted on the output end of the linear motor (3). The valve cover (2) is provided with a display (7) for displaying data of the displacement sensor (6), the valve core (5) is in a conical shape with a larger upper portion and a smaller lower portion, a corrugated column (10) is fixedly installed at the bottom end of the valve core (5), the outer side of the corrugated column (10) is in a corrugated shape, the corrugated column (10) is located inside the valve body (1) near the mother liquid outlet (9) of the valve body (1), a mother liquid inlet (8) communicating with the inside of the valve body (1) is provided on one side of the top end of the valve body (1), and the valve body (1) and the valve core (5) are clearance-matched.

2. A polymer mother liquid flow controller according to claim 1, characterized in that: The outer cover of the linear motor (3) is provided with a heat dissipation cover (13) mounted with a heat dissipation material, and the heat dissipation cover (13) and the valve cover (2) are fixedly connected.

3. A polymer mother liquid flow controller according to claim 1, characterized in that: The valve cover (2) and the valve body (1) are detachably connected via bolts (12).

4. A polymer mother liquid flow controller according to claim 1, characterized in that: A sealing sleeve (11) is fixedly mounted inside the valve cover (2), and the sealing sleeve (11) is sleeved on the outside of the valve stem (4).

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