CN114458243A - Scale inhibitor filling system - Google Patents

Abstract

The invention discloses a scale inhibitor filling system.A scale inhibitor conveying pipeline is partially arranged outside a pump pipe in a well and is fixed by the pump pipe, so that the problems of vibration and abrasion caused by installation in the pump pipe are solved, and the safe and stable operation of the scale inhibitor filling system is ensured. The scale inhibitor conveying pipeline is connected with a geothermal well flange through a movable joint, so that a pump can be conveniently lifted, the scale inhibitor conveying pipeline can be conveniently installed, and meanwhile, the scale inhibitor conveying pipeline is easily collected on a winch. The scale inhibitor liquid distribution pipe is annular and is provided with a plurality of scale inhibitor filling branch pipes, so that the filling uniformity is ensured, and the problem that a single branch pipe is easy to block is solved. The scale inhibitor filling branch pipes are arranged along the water flow direction and form an included angle of 30-60 degrees with the water flow direction, so that solid particles in the water flow can be prevented from blocking the scale inhibitor filling branch pipes.

Description

A scale inhibitor filling system

technical field

The invention relates to the technical field of geothermal heating, in particular to a scale inhibitor filling system.

Background technique

The severe smog in North China in winter creates an urgent need for clean energy heating technology. The area is rich in karst geothermal reserves and has a high degree of development and utilization, which provides a feasible solution for clean energy heating. In the process of karst thermal storage development, downhole calcium carbonate scaling is common, which restricts geothermal heating from playing a greater role. The most prominent downhole scaling is the scaling in the pump tube, which affects the flow section of the pump tube. During the heating period, the scale is removed mechanically, and the deep well pump and pump pipe need to be proposed, which affects the heating. The traditional filling of scale inhibitor to remove the scale, the filling pipeline is arranged in the pump pipe, due to the high flow rate of the water in the pump pipe, the filling pipeline is easy to vibrate and wear, and the safety and stability are poor.

SUMMARY OF THE INVENTION

In order to solve the calcium carbonate scaling in the well and ensure the safe and stable operation of the scale inhibition system, the invention proposes a scale inhibitor injection system.

For achieving the above object, technical scheme of the present invention is as follows:

A scale inhibitor filling system, comprising a pump chamber pipe for deep underground operation, a deep well pump is arranged in the pump chamber pipe, one end of a pump pipe is connected to the deep well pump, and the pump pipe extends upward and partially extends. out of the pump chamber tube and the other end of the pump tube is fixed on the upper end of the pump chamber tube; the pump tube is provided with a scale inhibitor dispenser pipe, and the scale inhibitor dispenser pipe runs along the A plurality of scale inhibitor filling branch pipes are arranged in the circumferential direction of the pump pipe, and the scale inhibitor liquid separator is connected with a scale inhibitor tank for replenishing the scale inhibitor through the scale inhibitor transport pipeline.

The above scale inhibitor filling system is characterized in that, the pump pipe is fixed on the upper end of the pump chamber pipe through a geothermal well flange, and the scale inhibitor transportation pipeline is connected to the geothermal well through a union Flange connection.

The scale inhibitor filling system as described above is characterized in that the scale inhibitor filling branch pipe is connected to the pump pipe by welding.

The above scale inhibitor filling system is characterized in that, one end of the scale inhibitor transportation pipeline arranged on the ground is connected to the union on the flange of the geothermal well, and the other end is connected to the scale inhibitor tank that communicates with pipeline.

The above scale inhibitor filling system is characterized in that a winch, a regulating valve, a flow meter, a metering pump and a shut-off valve are arranged on the pipeline communicating with the scale inhibitor tank.

The above scale inhibitor filling system is characterized in that, the scale inhibitor tank body is provided with a liquid level gauge on the side.

The above scale inhibitor filling system is characterized in that the scale inhibitor dispensing pipe is annular, and four scale inhibitor filling branch pipes are arranged on the annular ring.

The scale inhibitor filling system as described above is characterized in that the scale inhibitor filling branch pipe is inserted into the pump pipe obliquely upward, and the vertical included angle with the pump pipe is 30-60 degrees.

The scale inhibitor filling system as described above is characterized in that, the scale inhibitor transportation pipeline is arranged outside the pump pipe in the downhole part, and is fixed by the pump pipe.

The above scale inhibitor filling system is characterized in that, the scale inhibitor transportation pipeline is connected with the geothermal well flange through a joint.

Compared with the prior art, the present invention has the beneficial effects that the scale inhibitor transportation pipeline of the present invention is arranged outside the pump tube in the downhole part, and is fixed by the pump tube, which solves the problems of vibration and wear caused by the installation in the pump tube , to ensure the safe and stable operation of the scale inhibitor filling system. The antiscalant transportation pipeline is connected with the geothermal well flange through the union, which is convenient for lifting the pump and installing the antiscaling agent transportation pipeline, and at the same time, it is easy to collect the antiscaling agent transportation pipeline on the winch. The scale inhibitor liquid distribution pipe is annular, and is arranged with multiple scale inhibitor filling branch pipes, which not only ensures uniform filling, but also solves the problem that a single branch pipe is easy to block. The scale inhibitor filling branch pipe is arranged along the water flow direction and has an included angle of 30-60 degrees with the water flow direction, which can prevent the solid particles in the water flow from clogging the scale inhibitor filling branch pipe.

Description of drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a scale inhibitor filling system provided by an embodiment of the present invention.

In the figure, 1. Geothermal well flange; 2. Pump pipe; 3. Pump chamber pipe; 4. Antiscalant injection branch pipe; 5. Deep well pump; , Scale inhibitor transportation pipeline; 9, winch; 10, regulating valve; 11, metering pump; 12, shut-off valve; 13, scale inhibitor tank; 14, liquid level gauge.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Example:

It should be noted that the terms "comprising" and "having" and any modifications thereof in the embodiments of the present invention are intended to cover non-exclusive inclusion, for example, a process, method, system, product or process including a series of steps or units. The apparatus is not necessarily limited to those steps or units expressly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or apparatus.

It is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Radial", " The orientation or positional relationship indicated such as "circumferential direction" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, It is constructed and operated in a particular orientation and is therefore not to be construed as a limitation of the present invention.

In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection. The connection can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a scale inhibitor filling system provided by an embodiment of the present invention. In order to solve the calcium carbonate scaling in the well and ensure the safe and stable operation of the scale inhibitor system, the present invention proposes a scale inhibitor filling system, which includes a pump chamber pipe 3 that operates deep underground, and a deep well is arranged in the pump chamber pipe 3 The pump 5, the deep well pump 5 is connected with one end of the pump tube 2, the pump tube 2 extends upward and partially extends out of the pump chamber tube 3 and the other end of the pump tube 2 is fixed to the pump The upper end of the chamber tube 3; the pump tube 2 is provided with a scale inhibitor dispensing pipe 6, and the scale inhibitor dispensing pipe 6 is arranged along the circumferential direction of the pump pipe 2 with a plurality of scale inhibitor filling branch pipes 4 , the scale inhibitor separator pipe 6 is connected with a scale inhibitor tank for replenishing the scale inhibitor through the scale inhibitor transport line 8 . Specifically, the pump chamber pipe 3 has a diameter of 406 mm and a depth of 400 m. The depth of the deep well pump 5 is 260 meters, and the diameter of the pump pipe 2 is 159 mm. The fouling position is located in the pump pipe 2, and the position is 40m downhole. The scale inhibitor injection location is 200m downhole.

As an optional implementation manner, in some embodiments, the pump pipe 2 is fixed on the upper end of the pump chamber pipe 3 through the geothermal well flange 1, and the scale inhibitor transport line 8 passes through a joint 7 Connect with the geothermal well flange 1 .

As an optional implementation manner, in some embodiments, the scale inhibitor filling branch pipe 4 is connected to the pump pipe 2 by welding.

As an optional implementation, in some embodiments, one end of the scale inhibitor transportation pipeline 8 arranged on the ground is connected to the union 7 on the geothermal well flange 1, and the other end is connected to the scale inhibitor The pipe connecting the tank.

As an optional implementation manner, in some embodiments, a winch 9 , a regulating valve 10 , a flow meter, a metering pump 11 and a shut-off valve 12 are provided on the pipeline communicating with the scale inhibitor tank. The filling amount of the antiscalant is controlled by the regulating valve 10. When the scale inhibitor is filled, the metering pump 11 is turned on, and the consumption of the scale inhibitor is calculated according to the change in the reading of the liquid level gauge 14 .

As an optional implementation manner, in some embodiments, the scale inhibitor tank 13 is provided with a liquid level gauge 14 on the side thereof. The liquid level gauge 14 with a ruler can both display the liquid level and measure the flow rate of the antiscalant. A liquid level gauge 14 with a ruler is used to measure the flow rate of the scale inhibitor, the method is simple, the operation is convenient, the cost is low, and the precision is high.

As an optional implementation manner, in some embodiments, the scale inhibitor distribution pipe 6 is a circular ring with a diameter of 6 mm, and four scale inhibitor filling branch pipes 4 are arranged on the circular ring. Each branch pipe 4 is filled with scale inhibitor. On the one hand, the scale inhibitor can be filled evenly, and on the other hand, it can prevent a single branch pipe from being blocked.

As an optional implementation manner, in some embodiments, the scale inhibitor filling branch pipe 4 has a diameter of 6 mm, and the scale inhibitor filling branch pipe 4 is inserted into the pump pipe 2 obliquely upward, and is vertical to the pump pipe 2 The included angle of the direction is 30-60 degrees, preferably 45 degrees. The scale inhibitor filling branch pipe 4 follows the water flow direction and has an included angle of 45 degrees with the water flow direction, which can prevent the solid particles in the water flow from clogging the scale inhibitor filling branch pipe 4 .

As an optional implementation manner, in some embodiments, the scale inhibitor transportation pipeline 8 is arranged outside the pump pipe 2 in the downhole part, and is fixed by the pump pipe 2 . Scale inhibitor transportation pipeline 8, diameter 6mm, material is 316L. In the downhole part, the antiscalant transport line 8 is arranged outside the pump pipe 2 and fixed by the pump pipe 2 . The downhole scale inhibitor transportation pipeline 8 is installed outside the pump pipe 2, which can solve the problems of vibration and wear and ensure the safe and stable operation of the scale inhibitor injection system.

As an optional implementation manner, in some embodiments, the scale inhibitor transportation pipeline 8 is connected to the geothermal well flange 1 through a joint 7 . The antiscalant transportation pipeline 8 is connected to the geothermal well flange 1 through the joint 7. When the pump and the pump pipe 2 are lifted and the antiscalant transportation pipeline 8 is installed, the flange 1 of the geothermal well is connected to the resistance through the joint 7. The scale transport line 8 is disconnected. After the geothermal well flange 1 is disengaged from the scale inhibitor transport line 8, the scale inhibitor transport line 8 at the upper part of the flange and the lower part of the flange can still be connected together by a screw thread, which is convenient for the scale inhibitor transport line 8 Collected on winch 9. The diameter of the winch 9 is 500 mm.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

The above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present invention, and the purpose thereof is to enable those of ordinary skill in the art to understand the content of the present invention and implement them accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the essence of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A scale inhibitor filling system comprises a pump chamber pipe which is deeply operated underground, and is characterized in that a deep-well pump is arranged in the pump chamber pipe, one end of the pump pipe is connected to the deep-well pump, the pump pipe extends upwards and partially extends out of the pump chamber pipe, and the other end of the pump pipe is fixed at the upper end of the pump chamber pipe; the scale inhibitor feeding device is characterized in that a scale inhibitor liquid distribution pipe is arranged on the pump pipe, a plurality of scale inhibitor feeding branch pipes are arranged on the scale inhibitor liquid distribution pipe along the circumferential direction of the pump pipe, and the scale inhibitor liquid distribution pipe is communicated with a scale inhibitor box for supplying scale inhibitors through a scale inhibitor conveying pipeline.

2. The scale inhibitor filling system of claim 1, wherein the pump pipe is fixed at the upper end of the pump chamber pipe by a geothermal well flange, and the scale inhibitor delivery line is connected with the geothermal well flange by a union.

3. The scale inhibitor filling system according to claim 1, wherein the scale inhibitor filling branch pipe is connected with the pump pipe by welding.

4. The scale inhibitor filling system according to claim 1, wherein one end of the scale inhibitor conveying pipeline arranged on the ground is connected with a movable joint on a geothermal well flange, and the other end of the scale inhibitor conveying pipeline is connected with a pipeline communicated with a scale inhibitor box.

5. The system of claim 4, wherein the pipe connected to the antisludging agent tank is provided with a winch, a regulating valve, a flow meter, a metering pump and a shut-off valve.

6. The scale inhibitor filling system of claim 4, wherein the scale inhibitor tank is equipped with a level gauge on the side.

7. The scale inhibitor filling system according to claim 1, wherein the scale inhibitor liquid distribution pipe is annular, and four scale inhibitor filling branch pipes are arranged on the annular.

8. The scale inhibitor filling system of claim 1, wherein the scale inhibitor filling branch pipe is inserted into the pump pipe obliquely upwards, and the vertical included angle between the scale inhibitor filling branch pipe and the pump pipe is 30-60 degrees.

9. The scale inhibitor filling system of claim 1, wherein the scale inhibitor transport line is partially disposed outside the pump pipe downhole and is fixed by the pump pipe.

10. The scale inhibitor filling system of claim 1, wherein the scale inhibitor delivery line is connected to a geothermal well flange by a union.

Images