Outlet vortex eliminating device for large soft water tank

Abstract

The utility model provides an outlet vortex eliminating device for a large soft water tank, which belongs to the technical field of deep coal rock gas development and comprises a base, a support rod and an impeller type flow guide floating plate, the support rod is detachably mounted on the base, and a mounting hole is formed in the center of the impeller type flow guide floating plate. The impeller type flow guide floating plate penetrates through the supporting rod through the mounting hole and can move up and down along the supporting rod when being subjected to external force, and a plug is mounted at the top end of the supporting rod. The soft water tank can solve the technical problem that water supply is affected due to the fact that air easily enters the soft water tank after vortexes are generated at the water outlet in the water supply process of an existing soft water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of deep coal-rock gas development, in particular to an outlet vortex eliminating device for a large soft water tank. Background Art

[0002] my country has abundant deep coal-rock gas resources, and large-scale hydraulic fracturing is the primary technology for deep coal-rock gas development. Therefore, large-scale water preparation is particularly important. Currently, deep coal-rock gas fracturing construction sites primarily use large soft water tanks for water preparation. However, when these soft water tanks transfer water to buffer tanks or sand mixer pipelines, vortices often form near the water outlet at the bottom of the soft water tanks.

[0003] Vortices are caused by the Coriolis force. In 1835, French scientist Giorgio Coriolis wrote in his paper "Equations of Relative Motion of a System of Objects" that if an object moves relative to a uniformly rotating reference frame, an inertial force, different from the usual centrifugal force, acts on the object. This force is called the "Coriolis force."

[0004]

[0005] When we zoom in to the entire earth, the earth rotates from west to east along its tilted main axis, which triggers the conditions and produces the Coriolis force - the Coriolis force, and the reason why the vortex appears at the drain outlet is the Coriolis force. The Coriolis force will become the centripetal force of the drain outlet, causing a counterclockwise or clockwise vortex. Regarding the direction of the vortex (clockwise or counterclockwise), in the case of a free vortex, its direction is determined by the rotation of the earth (Coriolis force) and the initial conditions of the water flow. Near the equator, the vortex may not have an obvious direction, but in the northern hemisphere, the direction of the free vortex is usually counterclockwise; in the southern hemisphere, the direction of the free vortex is usually clockwise. This is due to the different directions of the Coriolis force at different latitudes. The schematic diagram of the Coriolis force is shown in the figure below. Figure 3 shown.

[0006] When a vortex is generated near the water outlet, air is easily introduced, thereby affecting water supply and on-site fracturing construction. Therefore, there is an urgent need for a device that can eliminate the vortex generated at the water outlet of a soft water tank. Utility Model Content

[0007] In view of this, the utility model aims to propose an outlet vortex elimination device for large soft water tanks, which can solve the technical problem that air is easily entered into the water outlet of the existing soft water tank during the water supply process after the vortex is generated, thereby affecting the water supply.

[0008] To achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: an outlet vortex elimination device for a large soft water tank includes a base, a support rod and an impeller-type guide float. The support rod is detachably mounted on the base, and a mounting hole is provided at the center position of the impeller-type guide float. The impeller-type guide float passes through the support rod through the mounting hole. When the impeller-type guide float is subjected to external force, it can move up and down along the support rod.

[0009] Furthermore, the impeller-type guide floating plate includes a floating plate and a guide plate. The guide plates are evenly installed on the lower end surface of the floating plate, and the number of the guide plates is 3 to 6.

[0010] Furthermore, the floating plate is a circular flat plate structure, and the area of the floating plate can cover the water outlet area of the soft water tank.

[0011] Furthermore, the guide plate is a blade structure and has an arc. One end of the guide plate close to the floating plate is adhered to the floating plate. The guide direction of the guide plate is opposite to the rotation direction of the free vortex.

[0012] Furthermore, the floating plate is made of a material that is water-resistant, corrosion-resistant, and capable of floating on the water surface.

[0013] Furthermore, a threaded structure is provided at the lower end of the support rod, and the base and the support rod are threadedly connected.

[0014] Furthermore, the support rod is a telescopic rod structure.

[0015] Furthermore, a plug is installed on the top end of the support rod.

[0016] Furthermore, the base is a hollow cone structure.

[0017] Compared with the prior art, the outlet vortex elimination device for a large soft water tank described in the present invention has the following advantages:

[0018] (1) The utility model can solve the technical problem that during the water supply process of the existing soft water tank, air is easily introduced into the water outlet after a vortex is generated, thereby affecting the water supply;

[0019] (2) The utility model can be applied to large soft water tanks of various sizes and specifications, and has high practicality and versatility;

[0020] (3) The utility model has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic structural diagram of an outlet vortex elimination device for a large soft water tank according to an embodiment of the present utility model;

[0023] Figure 2 Schematic diagram of the structure of the impeller-type guide floating plate (Figure (a) shows the structure of the impeller-type guide floating plate when used in the northern hemisphere; Figure (b) shows the structure of the impeller-type guide floating plate when used in the southern hemisphere);

[0024] Figure 3 Schematic diagram of the Coriolis force.

[0025] Description of reference numerals:

[0026] 1. Base; 2. Support rod; 3. Impeller-type guide float; 4. Plug; 5. Guide plate; 6. Float. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] like Figure 1-Figure 2As shown, the present invention is an outlet vortex elimination device for large soft-bodied water tanks. The device comprises a base 1, a support rod 2, and an impeller-type guide float 3. The support rod 2 is detachably mounted on the base 1. The impeller-type guide float 3 has a mounting hole at its center. The impeller-type guide float 3 extends through the support rod 2 through the mounting hole. When an external force is applied to the impeller-type guide float 3, the impeller-type guide float 3 can move up and down along the support rod 2. Specifically, when the device is placed in a large soft-bodied water tank, the impeller-type guide float 3 is positioned on the support rod 2 and can float up and down on the support rod 2 according to the liquid level. A plug 4 is mounted on the top of the support rod 2 to prevent the impeller-type guide float 3 from falling off the top. The impeller-type guide float 3 has a certain area, which can cover the outlet area of a large soft water tank. Specifically, the impeller-type guide float 3 includes a float 6 and a guide plate 5. The guide plates 5 are evenly mounted on the lower end surface of the float 6, that is, the guide plates 5 are arranged on the end surface of the float 6 near the base 1. The number of guide plates 5 is 3 to 6, preferably 6. The guide plates 5 are blade-shaped and have a curvature. Preferably, the guide plates 5 are adhesively fixed to the float 6. The end of the guide plate 5 near the float 6 is adhered to the float 6. When the guide plate 5 is subjected to the action of a fluid (such as air or water), the impeller-type guide float 3 can rotate. Because the direction of the guide plate 5 is opposite to the direction of rotation of the free vortex, the impeller-type guide float 3 rotates in the opposite direction of the free vortex, thereby breaking up or suppressing the formation of the vortex. The deflector 5 works by changing the direction and velocity of a fluid (such as air or water) to disrupt or eliminate vortex formation. Specifically, the deflector 5 directs the fluid in a specific pattern, causing velocity compression or direction change as it passes through the deflector 5, thereby breaking up or suppressing the formation of vortices. The deflector 5 directs flow in a clockwise direction, while free vortices in the Northern Hemisphere typically move counterclockwise, effectively breaking up or suppressing the formation of vortices.

[0030] In actual use, the hollow base 1 is firmly fixed to the bottom of the soft water tank using a fixing device (such as bolts, anchors, etc.) to prevent it from being moved by the impact of the water flow. The base 1 is a hollow cone structure, and the bottom surface of the base 1 is triangular, square, rectangular, polygonal or circular. The bottom surface area of the base 1 can cover the area of the water outlet of the soft water tank. The bottom surface of the base 1 can also be other shapes that can cover the area of the water outlet of the soft water tank. The cone structure is reliably connected, can withstand large torque and tension, is easy to install and disassemble, and has good stability. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0031] The float 6 is a circular, flat plate. It is made of a water-resistant, corrosion-resistant, lightweight material that floats on the water, such as plastic. The size of the float 6 should be determined based on the size of the soft water tank and the location of the water outlet. Specifically, the area of the float 6 should cover the area of the soft water tank's outlet. Based on currently common large soft water tanks, the diameter of the float 6 is preferably 1 to 1.5 meters.

[0032] like Figure 2 As shown in (a), the diversion direction of the guide plate 5 on the impeller-type guide float 3 is clockwise, while the direction of the free vortex in the northern hemisphere is usually counterclockwise. The diversion direction of the guide plate 5 is opposite to the rotation direction of the free vortex, which inhibits the formation of the vortex to a certain extent, and prevents the water pumping pipeline at the water outlet of the soft water tank from entering the air, affecting the water supply efficiency of the soft water tank, and further affecting the hydraulic fracturing construction. It should be noted that if the device described in the present invention needs to be used in the southern hemisphere, since the direction of the free vortex in the southern hemisphere is usually clockwise, the diversion direction of the guide plate 5 needs to be counterclockwise, so the structure of the impeller-type guide float 3 is as follows Figure 2 As shown in (b), by comparison Figure 2 (a) and Figure 2 (b) It can be seen that when the device of the present invention is used in the northern hemisphere or the southern hemisphere, the structure of the impeller-type guide floating plate 3 remains basically unchanged. The difference is that when the guide plate 5 is installed on the floating plate 6, the bending direction of its blades is different. Therefore, the guide direction of the guide plate 5 in Figure (b) is different from that in Figure (b). Figure 2 (a) The guide plate 5 has different flow directions, thus achieving Figure 2 (a) and Figure 2 (b) The impeller-type guide plates 3 in the two figures have different flow diversion directions.

[0033] The lower end of the support rod 2 is provided with a threaded structure, that is, the bottom end of the support rod 2 is divided into a screw structure, and the top end of the base 1 is provided with an internal thread. Preferably, a nut is welded to the top end of the base 1, and the support rod 2 is threadedly connected to the nut of the base 1 through the screw structure at the bottom end. It should be noted that in actual application, the method of achieving threaded connection between the base 1 and the support rod 2 is not limited to using a nut. It is also possible to use a structure in which an internal threaded hole is opened at the top end of the base 1 to thread the support rod 2. Since the technology of threaded connection is relatively mature, it will not be described in detail here.

[0034] Support rod 2 is a telescopic rod. Because different soft water tanks have different heights, a telescopic rod with a telescopic structure can be adjusted to different lengths to accommodate large soft water tanks of varying heights or sizes, effectively improving applicability. In actual use, the height of support rod 2 after installation should not be lower than the height of the soft water tank.

[0035] In actual operation, the outlet vortex elimination device for a large soft water tank described in the utility model is placed in the large soft water tank, and the length of the support rod 2 is adjusted so that the top height of the support rod 2 is higher than the top height of the soft water tank. At the same time, the impeller-type guide float 3 floats on the liquid surface of the soft water tank. When the soft water tank is supplying water, a vortex is generated at the water outlet of the soft water tank. At this time, the impeller-type guide float 3 is affected by the water flow, and the guide plate 5 arranged thereon starts to drive the impeller-type guide float 3 to rotate. Since the diversion direction of the guide plate 5 is opposite to the rotation direction of the vortex, the formation of the vortex is effectively suppressed to a certain extent, and the water pumping line at the water outlet of the soft water tank is prevented from entering the air, thereby effectively ensuring the water supply efficiency of the soft water tank and preventing air from entering the evacuation line to affect the hydraulic fracturing construction.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An outlet vortex elimination device for a large soft water tank, characterized by: The invention comprises a base (1), a support rod (2) and an impeller-type guide float (3); the support rod (2) is detachably mounted on the base (1); a mounting hole is provided at the center of the impeller-type guide float (3); the impeller-type guide float (3) penetrates the support rod (2) through the mounting hole; and when the impeller-type guide float (3) is subjected to an external force, it can move up and down along the support rod (2).

2. The outlet vortex elimination device for a large soft water tank according to claim 1, characterized in that: The impeller-type guide floating plate (3) comprises a floating plate (6) and a guide plate (5). The guide plates (5) are evenly mounted on the lower end surface of the floating plate (6), and the number of the guide plates (5) is 3 to 6.

3. The outlet vortex elimination device for a large soft water tank according to claim 2, characterized in that: The floating plate (6) is a circular flat plate structure, and the area of the floating plate (6) can cover the water outlet area of the soft water tank.

4. The outlet vortex elimination device for a large soft water tank according to claim 2, characterized in that: The guide plate (5) is a blade structure and has an arc. One end of the guide plate (5) close to the floating plate (6) is adhered to the floating plate (6). The guide direction of the guide plate (5) is opposite to the rotation direction of the free vortex.

5. The outlet vortex elimination device for a large soft water tank according to claim 3, characterized in that: The floating plate (6) is made of a material that is water-resistant, corrosion-resistant, and capable of floating on the water surface.

6. The outlet vortex elimination device for a large soft water tank according to claim 1, characterized in that: The lower end of the support rod (2) is provided with a threaded structure, and the base (1) and the support rod (2) are threadedly connected.

7. The outlet vortex elimination device for a large soft water tank according to claim 1, characterized in that: The support rod (2) is a telescopic rod structure.

8. The outlet vortex elimination device for a large soft water tank according to claim 7, characterized in that: A plug (4) is installed on the top end of the support rod (2).

9. The outlet vortex elimination device for a large soft water tank according to claim 1, characterized in that: The base (1) is a hollow cone structure.

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