Scale inhibition bactericide pipeline filling device and method

Abstract

The invention belongs to the technical field of dosing equipment of a petroleum ground gathering and transportation system, and particularly relates to a scale inhibition bactericide pipeline filling device and method. The device further comprises a pesticide mixing mechanism, a raw pesticide storage mechanism, a controller and an output pipeline. The controller is in electric signal connection with the pesticide mixing mechanism and the raw pesticide storage mechanism; the raw medicine storage mechanism is connected with the medicine mixing mechanism; an outlet of the medicine mixing mechanism is connected with the output pipeline; the top of the pesticide mixing mechanism is connected with a water inlet pipeline. According to the invention, three functions of medicine storage, preparation and filling are integrated, and the whole process of medicine feeding, medicine dispensing and medicine adding is intelligently realized, so that the process flow is more reasonable, complete, compact and simple. And the participation degree of people is reduced to the minimum. According to the operation mode, the mode that people need to go to the site every day and every time is changed, only about 7-10 days are needed for adding medicine into the medicine storage box at present, people do not need to go to the site equipment end for operation basically in other operations, and manpower is liberated.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical dosing equipment for petroleum ground gathering and transportation systems, and in particular relates to a device and method for filling a scale inhibitor and bactericide pipeline. Background Art

[0002] Site dosing is the basis of current site work. In the existing technology, most of the control of on-site injection equipment can only be operated locally, and only the liquid level and pump start and stop can be remotely controlled. The proportioning and filling operation is relatively cumbersome, requiring considerable manpower, material resources and energy, and the accuracy of each link is not high, and there are safety risks, which does not meet the relevant requirements and specifications for unmanned sites. Therefore, exploring a "low-input, low-cost, high-level" dosing mode to achieve remote monitoring and management of wellhead and site dosing operations in the oil field and achieve the goal of "saving manpower, energy saving, safety, and efficiency" will be the inevitable choice for the full coverage of digital management of oil fields. There is an urgent need to provide a device that can solve many problems of the current dosing device and play a supporting role in the innovation of dosing operation mode. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a device and method for filling a scale inhibitor and bactericide pipeline.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A scale inhibitor and bactericide pipeline filling device comprises at least a water pipeline; further comprising a drug mixing mechanism, a raw drug storage mechanism, a controller and an output pipeline; the controller is respectively connected to the drug mixing mechanism and the raw drug storage mechanism by electrical signals; the raw drug storage mechanism is connected to the drug mixing mechanism; the outlet of the drug mixing mechanism is connected to the output pipeline; and the top of the drug mixing mechanism is connected to the water pipeline.

[0006] The medicine mixing mechanism comprises two medicine mixing parts; the two medicine mixing parts are connected in parallel between the incoming water pipeline and the output pipeline; the two medicine mixing parts are respectively connected to the original medicine storage mechanism.

[0007] The two medicine mixing sections are the first medicine mixing section and the second medicine mixing section; the first medicine mixing section and the second medicine mixing section have the same structural composition; the first medicine mixing section includes a stirrer, a first medicine mixing box, a medicine mixing level meter, a solenoid valve, an injection flow meter, a frequency converter, a metering pump and a pressure transmitter; the medicine mixing level meter is connected in the first medicine mixing box, the lower part of the stirrer is vertically placed in the first medicine mixing box, and the top of the stirrer is fixed on the upper bottom surface of the first medicine mixing box; the injection flow meter, the metering pump and the pressure transmitter are connected in sequence on the pipeline between the outlet of the first medicine mixing box and the output pipeline; the metering pump is connected with a frequency converter; the top of the first medicine mixing box is connected to the water supply pipeline, and the solenoid valve is connected between the first medicine mixing box and the water supply pipeline; the stirrer, medicine mixing level meter, solenoid valve, injection flow meter, frequency converter, metering pump and pressure transmitter are respectively connected to the controller electrical signal.

[0008] The technical reserve mechanism includes two technical reserve parts; the two technical reserve parts are respectively connected to the drug mixing mechanism.

[0009] The two raw drug reserves are the first raw drug reserve and the second raw drug reserve; the first raw drug reserve and the second raw drug reserve have the same structural composition; the first raw drug reserve includes a first drug storage box, a first drug adding pump, a drug storage level gauge, a first filling / injection switching reversing valve and a second filling / injection switching reversing valve; the drug storage level gauge is vertically connected in the first drug storage box; a drug outlet is arranged at the top of the first drug storage box, and a drug inlet is arranged at the bottom; the top drug outlet is connected to the drug mixing mechanism through a pipeline, and the connected pipeline is connected with the second filling / injection switching reversing valve; the bottom drug inlet is connected to the external first drug adding pipeline, and the first filling / injection switching reversing valve is connected to the pipeline connecting the drug inlet and the first drug adding pipeline; the second filling / injection switching reversing valve and the first filling / injection switching reversing valve are connected by a pipeline, and the first drug adding pump is connected to the pipeline.

[0010] The first medicine storage box in the first technical medicine reserve section and the second medicine storage box in the second technical medicine reserve section are used for storing bactericides and scale inhibitors respectively; the first medicine storage box for storing bactericides has a volume of 1000 liters; the second medicine storage box for storing scale inhibitors has a volume of 500 liters.

[0011] It also includes a pry shell; the drug mixing mechanism and the original drug storage mechanism are both placed in the pry shell.

[0012] A filling method of a scale inhibitor and bactericide pipeline filling device, using the scale inhibitor and bactericide pipeline filling device, comprises the following steps:

[0013] Step 1: The controller controls the original drug storage mechanism to add the reserve drug;

[0014] Step 2: The controller controls the drug mixing mechanism to dispense the drug;

[0015] Step 3: The controller controls the medicine mixing mechanism to output medicine.

[0016] The specific process of the controller controlling the original drug storage mechanism to add the reserve drug in step 1 is as follows:

[0017] Step 1: Connect the first dosing pipeline to the external bactericide barrel, and the second dosing pipeline to the external antiscalant barrel;

[0018] Step 2: The controller controls the second filling / injection switching reversing valve and the fourth filling / injection switching reversing valve to close, and controls the first filling / injection switching reversing valve, the third filling / injection switching reversing valve, or both to open at the same time, so as to connect the first medicine storage box with the first medicine dosing pipeline, the second medicine storage box with the second medicine dosing pipeline, or both at the same time;

[0019] Step 3: The external bactericide barrel is used as the first medicine storage box, and the external antiscalant barrel is used as the second medicine storage box for medicine addition and storage;

[0020] Step 4: After the first medicine storage box or the second medicine storage box is filled with medicine, the controller controls the first filling / injection switching reversing valve, the third filling / injection switching reversing valve, or both to be closed simultaneously.

[0021] The specific process of the controller controlling the medicine mixing mechanism to dispense medicine in step 2 is as follows:

[0022] In the first step, the controller controls the second filling / injection switching reversing valve and the fourth filling / injection switching reversing valve to open, and connects the first medicine storage box, the first filling / injection switching reversing valve, the first medicine adding pump, the second filling / injection switching reversing valve, the first medicine mixing box or the second medicine mixing box;

[0023] Step 2: Add bactericide, antiscalant or both at the same time according to the preset ratio;

[0024] Step 3: The controller controls one of the stirrers on the first medicine mixing box and the second medicine mixing box to start or both of them start, and opens the solenoid valve connected to the first medicine mixing box, the solenoid valve on the second medicine mixing box, or the solenoid valves on the two medicine mixing boxes at the same time, and fills the first medicine mixing box, the second medicine mixing box, or both of them with stirring water according to the preset water volume, and stirs for a preset time;

[0025] The process of the controller controlling the medicine mixing mechanism to output medicine in step 3 is as follows:

[0026] The controller controls the metering pump to start, and the configured antiscalant and bactericide is output through the output pipeline and then filled into the well.

[0027] Beneficial effects:

[0028] (1) The level of automation and informatization has been greatly improved.

[0029] The present invention fully realizes "centralized storage, automatic preparation and automatic filling of medicines", making the process more reasonable, complete, compact and simple. It reduces the involvement of people to a minimum. The operation form has changed from the previous daily and every operation requiring people to go to the site to add medicine to the medicine storage box in a cycle of about 7-10 days, and other operations basically do not require people to go to the site to operate the equipment. It liberates manpower and makes up for the shortcomings of automation and informationization of oil gathering stations.

[0030] (2) It achieves low investment and quick results.

[0031] The technical structure of the transformation of the present invention has been modularized and factory-integrated as much as possible, so that the transformation can be done without fire and welding, and the changes and interference to the site are reduced to a minimum. The on-site transformation period is also short, so the cost is low.

[0032] (3) The area occupied by the process is greatly reduced compared with before the transformation.

[0033] The present invention makes full use of the equipment layout of the crude oil filling room, and only one set of filling control skid (with medicine storage box) is installed in the medicine storage room. The device occupies less than 1.5 square meters.

[0034] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a schematic diagram of the process of the present invention.

[0037] Figure 2 Schematic diagram of the controller function of the present invention.

[0038] In the figure: 1. agitator; 2. first medicine mixing box; 3. second medicine mixing box; 4. medicine mixing level meter; 5. first medicine storage box; 6. second medicine storage box; 7. output pipeline; 8. solenoid valve; 9. injection flow meter; 10. frequency converter; 11. metering pump; 12. water pipeline; 13. first medicine adding pump; 14. second medicine adding pump; 15. medicine storage level meter; 16. first filling / injection switching reversing valve; 17. second filling / injection switching reversing valve; 18. third filling / injection switching reversing valve; 19. fourth filling / injection switching reversing valve; 20. pressure transmitter; 21. first medicine adding pipeline; 22. second medicine adding pipeline. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] according to Figure 1 and Figure 2 The antiscalant and bactericide pipeline filling device shown in the figure includes at least an incoming water pipeline 12; it also includes a drug mixing mechanism, a raw drug storage mechanism, a controller and an output pipeline 7; the controller is electrically connected to the drug mixing mechanism and the raw drug storage mechanism respectively; the raw drug storage mechanism is connected to the drug mixing mechanism; the outlet of the drug mixing mechanism is connected to the output pipeline 7; the top of the drug mixing mechanism is connected to the incoming water pipeline 12.

[0042] In actual use, the controller controls the original medicine storage mechanism to add the prepared medicine, the controller controls the medicine mixing mechanism to prepare the medicine, and the controller controls the medicine mixing mechanism to output the configured antiscaling and bactericidal agent through the output pipeline 7 and inject it into the required well.

[0043] The controller in this embodiment adopts the existing technology, which at least includes a control module, a signal receiving module and a signal sending module. The signal receiving module is connected to the drug mixing mechanism, the original drug storage mechanism and the control module by electrical signals, and is used to receive data such as pressure, flow and liquid level on the drug mixing mechanism and the original drug storage mechanism, and is used to detect the implementation status of the present invention, and send the acquired data to the control module, and send the control information to the drug mixing mechanism and the original drug storage mechanism through the signal sending module through calculation, so as to accurately control the drug intake, drug preparation and external transmission of the prepared drugs.

[0044] The present invention achieves "centralized storage, automatic preparation and automatic filling of medicines", making the process more reasonable, complete, compact and simple. It reduces the involvement of people to a minimum. The operation form has changed from the previous daily and every operation requiring people to be on site to now only needing to add medicine to the medicine storage box once every 7-10 days, and other operations basically do not require people to be on site for equipment operation. It has liberated manpower and made up for the shortcomings of automation and informationization of oil gathering stations.

[0045] The invention has a short construction period on site, low cost and small floor space.

[0046] Embodiment 2:

[0047] according to Figure 1 and Figure 2 The antiscalant and bactericide pipeline filling device shown is different from the first embodiment in that: the drug mixing mechanism includes two drug mixing parts; the two drug mixing parts are connected in parallel between the incoming water pipeline 12 and the output pipeline 7; and the two drug mixing parts are respectively connected to the original drug storage mechanism.

[0048] The drug mixing mechanism adopts a design of two mixing parts. On the one hand, it can meet the needs of filling the anti-scaling and bactericidal agent pipelines of multiple wells at the same time; on the other hand, it also has a backup function. Even if one of the mixing parts fails, it will not affect the filling of the anti-scaling and bactericidal agent.

[0049] In specific applications, the number of mixing units can be set according to actual conditions to meet filling needs and adapt to the filling environment.

[0050] Embodiment three:

[0051] according to Figure 1 and Figure 2 The antiscalant and bactericide pipeline filling device shown in the figure is different from the second embodiment in that: the two mixing parts are the first mixing part and the second mixing part; the first mixing part and the second mixing part have the same structure; the first mixing part includes a stirrer 1, a first mixing box 2, a mixing level meter 4, a solenoid valve 8, an injection flow meter 9, a frequency converter 10, a metering pump 11 and a pressure transmitter 20; the mixing level meter 4 is connected to the first mixing box 2, the lower part of the stirrer 1 is vertically placed in the first mixing box 2, and the top of the stirrer 1 Fixed on the bottom surface of the first medicine mixing box 2; the injection flow meter 9, metering pump 11 and pressure transmitter 20 are connected in sequence on the pipeline between the outlet of the first medicine mixing box 2 and the output pipeline 7; the metering pump 11 is connected to the frequency converter 10; the top of the first medicine mixing box 2 is connected to the water pipeline 12, and the solenoid valve 8 is connected between the first medicine mixing box 2 and the water pipeline 12; the agitator 1, the mixing liquid level meter 4, the solenoid valve 8, the injection flow meter 9, the frequency converter 10, the metering pump 11 and the pressure transmitter 20 are respectively connected to the controller electrical signal.

[0052] In specific applications, the controller controls the second filling / injection switching reversing valve 17 and the fourth filling / injection switching reversing valve 19 to open, and connects the first medicine storage box 5, the first filling / injection switching reversing valve 16, the first medicine adding pump 13, the second filling / injection switching reversing valve 17, the first medicine mixing box 2 or the second medicine mixing box 3; then the bactericide, scale inhibitor or both are added according to the preset ratio; the controller controls one of the agitators 1 on the first medicine mixing box 2 and the second medicine mixing box 3 to start at the same time, and opens the solenoid valve 8 connected to the first medicine mixing box 2, the solenoid valve 8 on the second medicine mixing box 3 or the solenoid valves 8 on the two medicine mixing boxes at the same time, and adds stirring water to the first medicine mixing box 2, the second medicine mixing box 3 or both at the same time according to the preset water volume, and stirs for a predetermined time; the controller controls the metering pump 11 to start, and the configured scale inhibitor and bactericide is output through the output pipeline 7 and then filled into the well.

[0053] The agitator 1, the mixing liquid level meter 4, the solenoid valve 8, the injection flow meter 9, the frequency converter 10, the metering pump 11 and the pressure transmitter 20 are respectively connected to the controller by electrical signals. The controller obtains the relevant data information of the mixing liquid level meter 4, the injection flow meter 9 and the metering pump 11, and after calculation by the control module in the controller, sends the relevant control signal to the agitator 1, the solenoid valve 8, the frequency converter 10 and the pressure transmitter 20 to adjust them, and perform drug delivery control, stirring control, agent switching and displacement adjustment. In order to achieve the process of configuring the antiscaling and bactericidal agent according to the preset ratio.

[0054] Embodiment 4:

[0055] according to Figure 1 and Figure 2 The antiscalant and bactericide pipeline filling device shown is different from the first embodiment in that: the raw medicine storage mechanism includes two raw medicine storage parts; the two raw medicine storage parts are respectively connected to the mixing mechanism.

[0056] In specific applications, the technical reserve organization sets up two technical reserve departments to facilitate the storage of drugs to be used, reduce the space occupied by the reserve drug barrels, and facilitate the subsequent filling of the drugs.

[0057] Embodiment five:

[0058] according to Figure 1 and Figure 2The anti-scaling and bactericide pipeline filling device shown in the figure is different from the fourth embodiment in that: the two raw drug storage parts are the first raw drug storage part and the second raw drug storage part; the first raw drug storage part and the second raw drug storage part have the same structure; the first raw drug storage part includes a first drug storage box 5, a first drug adding pump 13, a drug storage level gauge 15, a first filling / injection switching reversing valve 16 and a second filling / injection switching reversing valve 17; the drug storage level gauge 15 is vertically connected to the first drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the second drug storage box 5; the first drug storage box 5 is connected to the first ... A medicine storage box 5 is provided with a medicine outlet at the top and a medicine inlet at the bottom; the top medicine outlet is connected to a medicine mixing mechanism through a pipeline, and a second filling / injection switching reversing valve 17 is connected to the connected pipeline; the bottom medicine inlet is connected to an external first medicine adding pipeline 21, and the first filling / injection switching reversing valve 16 is connected to the pipeline connecting the medicine inlet and the first medicine adding pipeline 21; the second filling / injection switching reversing valve 17 and the first filling / injection switching reversing valve 16 are connected by a pipeline, and the first medicine adding pump 13 is connected to the pipeline.

[0059] When it is necessary to add reserve medicine to the original medicine reserve, the first dosing pipeline 21 is connected to the external bactericide barrel, and the second dosing pipeline 22 is connected to the external antiscalant barrel; the controller controls the second filling / injection switching reversing valve 17 and the fourth filling / injection switching reversing valve 19 to be closed, and at the same time controls the first filling / injection switching reversing valve 16, the third filling / injection switching reversing valve 18 or both to be opened at the same time, connecting the first medicine storage box 5 with the first dosing pipeline 21, the second medicine storage box 6 with the second dosing pipeline 22 or both to be connected at the same time; thereafter, the external bactericide barrel is used for the first medicine storage box 5, and the external antiscalant barrel is used for the second medicine storage box 6 to add medicine reserves; after the first medicine storage box 5 or the second medicine storage box 6 is filled with medicine, the controller controls the first filling / injection switching reversing valve 16, the third filling / injection switching reversing valve 18 or both to be closed at the same time.

[0060] The technical solution adopted by the original drug reserve organization not only facilitates the reserve of drugs to be used and reduces the space occupied by the reserve drug barrels, but also facilitates the subsequent filling of the drugs.

[0061] Embodiment six:

[0062] according to Figure 1 and Figure 2 The antiscaling and bactericide pipeline filling device shown in the figure is different from the embodiment 5 in that: the first medicine storage box 5 in the first raw medicine storage part and the second medicine storage box 6 in the second raw medicine storage part are respectively used for storing bactericides and storing scale inhibitors; the first medicine storage box 5 for storing bactericides has a volume of 1000 liters; the second medicine storage box 6 for storing scale inhibitors has a volume of 500 liters.

[0063] In specific applications, the larger the volume of the first medicine storage box 5 and the second medicine storage box 6, the more medicines can be stored, but the larger the space they occupy. In this embodiment, the first medicine storage box 5 and the second medicine storage box 6 adopt the above technical solution to reduce the space occupied while meeting the basic storage amount of medicines.

[0064] Embodiment seven:

[0065] according to Figure 1 and Figure 2 The antiscalant and bactericide pipeline filling device shown is different from the first embodiment in that it also includes a pry shell; the drug mixing mechanism and the original drug storage mechanism are both placed in the pry shell.

[0066] In specific applications, the arrangement of the pry shell integrates the components therein, optimizes the layout, and not only reduces the space occupied by the invention, but also facilitates the movement of the position.

[0067] Embodiment eight:

[0068] according to Figure 1 and Figure 2 The antiscalant and bactericide pipeline filling device shown in the figure is different from the embodiment 1 in that: it also includes a pry shell; the drug mixing mechanism and the original drug storage mechanism are both placed in the pry shell; the drug mixing mechanism includes two drug mixing parts; the two drug mixing parts are connected in parallel between the incoming water pipeline 12 and the output pipeline 7; the two drug mixing parts are respectively connected to the original drug storage mechanism; the two drug mixing parts are a first drug mixing part and a second drug mixing part; the first drug mixing part and the second drug mixing part have the same structure; the first drug mixing part includes a stirrer 1, a first drug mixing box 2, a drug mixing level meter 4, a solenoid valve 8, an injection flow meter 9, a frequency converter 10, a metering pump 11 and a pressure transmitter 20; the drug mixing level meter 4 is connected in the first medicine mixing box 2, the lower part of the stirrer 1 is vertically placed in the first medicine mixing box 2, and the top of the stirrer 1 is fixed on the upper bottom surface of the first medicine mixing box 2; the injection flow meter 9, the metering pump 11 and the pressure transmitter 20 are connected in sequence on the pipeline between the outlet of the first medicine mixing box 2 and the output pipeline 7; the metering pump 11 is connected to the frequency converter 10; the top of the first medicine mixing box 2 is connected to the water pipeline 12, and the electromagnetic valve 8 is connected between the first medicine mixing box 2 and the water pipeline 12; the stirrer 1, the medicine mixing liquid level meter 4, the electromagnetic valve 8, the injection flow meter 9, the frequency converter 10, the metering pump 11 and the pressure transmitter 20 are respectively connected to the controller electrical signal.

[0069] In specific applications, the controller controls the second filling / injection switching reversing valve 17 and the fourth filling / injection switching reversing valve 19 to open, and connects the first medicine storage box 5, the first filling / injection switching reversing valve 16, the first medicine adding pump 13, the second filling / injection switching reversing valve 17, the first medicine mixing box 2 or the second medicine mixing box 3; then the bactericide, the scale inhibitor or both are added according to the preset ratio; the controller controls one of the agitators 1 on the first medicine mixing box 2 and the second medicine mixing box 3 to start or start at the same time, and opens the solenoid valve 8 connected to the first medicine mixing box 2 and the second medicine mixing box 3. The electromagnetic valve 8 on 3 or the electromagnetic valves 8 on the two mixing boxes are opened at the same time, and the first mixing box 2, the second mixing box 3 or both are filled with stirring water according to the preset water volume, and stirred for a predetermined time; the controller controls the metering pump 11 to start, and the configured antiscaling and bactericidal agent is output through the output pipeline 7 and then filled into the well; the raw drug storage mechanism includes two raw drug storage parts; the two raw drug storage parts are respectively connected to the mixing mechanism; the two raw drug storage parts are the first raw drug storage part and the second raw drug storage part; the first raw drug storage part and the second raw drug storage part The original drug storage part has the same structure; the first original drug storage part includes a first drug storage box 5, a first drug adding pump 13, a drug storage level gauge 15, a first filling / injection switching reversing valve 16 and a second filling / injection switching reversing valve 17; the drug storage level gauge 15 is vertically connected in the first drug storage box 5; a drug outlet is arranged at the top of the first drug storage box 5, and a drug inlet is arranged at the bottom; the top drug outlet is connected to the drug mixing mechanism through a pipeline, and the connected pipeline is connected to the second filling / injection switching reversing valve 17; the bottom drug inlet is connected to the external first drug adding pipeline 21, and the inlet A first filling / injection switching reversing valve 16 is connected to the pipeline connecting the drug port and the first drug adding pipeline 21; a second filling / injection switching reversing valve 17 and the first filling / injection switching reversing valve 16 are connected by a pipeline, and a first drug adding pump 13 is connected to the pipeline; the first drug storage box 5 in the first raw drug reserve section and the second drug storage box 6 in the second raw drug reserve section are respectively used for storing bactericides and scale inhibitors; the first drug storage box 5 for storing bactericides has a volume of 1000 liters; the second drug storage box 6 for storing scale inhibitors has a volume of 500 liters.

[0070] In the technical solution, the motors in the metering pump 11, the water pipeline 12, the first medicine adding pump 13 and the second medicine adding pump 14 are controlled by variable frequency speed regulation to achieve soft start, thereby reducing the impact of the power grid. It has high speed regulation efficiency and a wide speed regulation range (0-60HZ). It detects the motor operation data at all times and realizes self-protection when an abnormality occurs.

[0071] The controller in this technical solution uses a self-programmable RTU module with patent number ZL 2006 2 0136260.2, which is combined with data transmission technology to form a stable network transmission channel to effectively transmit data and remotely control the device. It can also be combined with the SCADA station control system to associate relevant production data in real time, so as to achieve intelligent quantitative control of drug addition, and closed-loop self-control can be achieved without a network. When the controller is actually used, it receives liquid level monitoring, flow detection and status detection signals, obtains the results of proportional blending and stirring, agent ratio, and displacement adjustment through processing, and implements data remote monitoring at the same time, and then issues instructions for displacement adjustment, agent switching, stirring control, and drug delivery control to achieve automatic control of antiscalant pipeline filling.

[0072] In this embodiment, a technical solution of two medicine mixing boxes and two raw medicine storage boxes is adopted, which effectively reduces the frequency of manual intervention in the dosing operation and improves work efficiency and production capacity.

[0073] In this embodiment, by setting a liquid level sensor on the first mixing medicine box 2 / the second mixing medicine box 3; setting a flow sensor 9 at the outlet of the first mixing medicine box 2 / the second mixing medicine box 3; and setting a pressure sensor on the pipeline between the outlet of the first mixing medicine box 2 and the output pipeline 7, various data values ​​can be collected in real time, effectively ensuring accurate drug filling and safe operation of the equipment.

[0074] In this embodiment, a solenoid valve 8 is installed between the incoming water pipeline and the inlet of the mixing medicine box, and is interlocked with the mixing medicine level meter 4. When the liquid level in the mixing medicine box is lower than the preset lower limit value, the controller controls the solenoid valve 8 to open for automatic water replenishment. When the liquid level in the mixing medicine box reaches the preset upper limit value, the electric valve 8 automatically closes to stop water replenishment.

[0075] In this embodiment, an electric reversing valve is installed between the medicine mixing box and the medicine storage box, and the medicine adding pump is interlocked with the medicine storage tank and the liquid level of the medicine mixing box, and the process is automatically switched through the electric reversing valve. The valve switch is remotely controlled.

[0076] In this embodiment, the metering pump connected to the medicine mixing box is interlocked with the liquid level of the medicine mixing box. When the liquid level of the medicine mixing box is lower than the preset lower limit, the controller sends an instruction to stop the metering pump; when the liquid level of the medicine mixing box reaches the upper preset value and the stirring pump stops running, the metering pump is started to automatically inject the medicine, realizing the automatic medicine adding function. The medicine adding pump connected to the medicine mixing box is interlocked with the liquid level in the medicine mixing box. When the liquid level of the medicine mixing box is lower than the low liquid level preset value, the controller sends an instruction to start the medicine adding pump to automatically add medicine; when the liquid level of the medicine mixing box reaches the high liquid level preset value, the medicine adding pump is stopped, and the medicine storage box stops adding medicine. Automatic proportioning of medicines is realized for medicine adding.

[0077] Embodiment nine:

[0078] Reference Figure 1 and Figure 2 A method for filling a pipeline filling device for a scale inhibitor and bactericide comprises the following steps:

[0079] Step 1: The controller controls the original drug storage mechanism to add the reserve drug;

[0080] Step 2: The controller controls the drug mixing mechanism to dispense the drug;

[0081] Step 3: The controller controls the medicine mixing mechanism to output medicine.

[0082] Furthermore, the specific process of the controller in step 1 controlling the original drug reserve mechanism to add the reserve drug is as follows:

[0083] Step 1: Connect the first dosing pipeline 21 to the external bactericide barrel, and the second dosing pipeline 22 to the external antiscalant barrel;

[0084] Step 2: The controller controls the second filling / injection switching reversing valve 17 and the fourth filling / injection switching reversing valve 19 to be closed, and controls the first filling / injection switching reversing valve 16, the third filling / injection switching reversing valve 18 or both to be opened at the same time, so as to connect the first medicine storage box 5 with the first medicine dosing pipeline 21, the second medicine storage box 6 with the second medicine dosing pipeline 22 or both at the same time;

[0085] Step 3: the external bactericide barrel is the first medicine storage box 5, and the external antiscalant barrel is the second medicine storage box 6 for adding medicine for storage;

[0086] Step 4: After the first medicine storage box 5 or the second medicine storage box 6 is filled with medicine, the controller controls the first filling / injection switching reversing valve 16, the third filling / injection switching reversing valve 18 or both to be closed simultaneously.

[0087] Furthermore, the specific process of the controller controlling the medicine mixing mechanism to dispense medicine in step 2 is as follows:

[0088] In the first step, the controller controls the second filling / injection switching reversing valve 17 and the fourth filling / injection switching reversing valve 19 to open, and makes the first medicine storage box 5, the first filling / injection switching reversing valve 16, the first medicine adding pump 13, the second filling / injection switching reversing valve 17, the first medicine mixing box 2 or the second medicine mixing box 3 connected;

[0089] Step 2: Add bactericide, antiscalant or both at the same time according to the preset ratio;

[0090] Step 3: The controller controls the stirrers 1 on the first medicine mixing box 2 or the second medicine mixing box 3 to start or both start, and opens the solenoid valve 8 connected to the first medicine mixing box 2, the solenoid valve 8 on the second medicine mixing box 3, or the solenoid valves 8 on both medicine mixing boxes to open at the same time, and fills the first medicine mixing box 2, the second medicine mixing box 3, or both of them with stirring water according to the preset water volume, and stirs for a preset time;

[0091] The process of the controller controlling the medicine mixing mechanism to output medicine in step 3 is as follows:

[0092] The controller controls the metering pump 11 to start, and the configured antiscaling and bactericidal agent is output through the output pipeline 7 and then filled into the well.

[0093] The present invention achieves "centralized storage, automatic preparation, and automatic filling of medicines", making the process more reasonable, complete, compact, and simple. It reduces human involvement to a minimum. The operation mode has changed from the previous daily and every operation requiring people to be on site to now only needing to add medicine to the medicine storage box in a cycle of about 7-10 days, and other operations basically do not require people to go to the on-site equipment end to operate. It liberates manpower. It makes up for the shortcomings of automation and informatization of oil collection stations. The present invention has a short construction period on site, low cost, and small footprint.

[0094] In the absence of conflicts, technicians in this field can combine the relevant technical features in the above examples according to actual conditions to achieve corresponding technical effects. The specific combinations are not described here one by one.

[0095] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0096] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0097] The above are only preferred embodiments of the present invention. The present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A device for filling a pipeline with a scale inhibitor and bactericide, comprising at least a water pipeline (12); characterized in that: It also includes a drug mixing mechanism, a raw drug storage mechanism, a controller and an output pipeline (7); the controller is respectively connected to the drug mixing mechanism and the raw drug storage mechanism by electrical signals; the raw drug storage mechanism is connected to the drug mixing mechanism; the outlet of the drug mixing mechanism is connected to the output pipeline (7); and the top of the drug mixing mechanism is connected to a water pipeline (12).

2. A scale inhibitor and bactericide pipeline filling device as claimed in claim 1, characterized in that: The drug mixing mechanism comprises two drug mixing parts; the two drug mixing parts are connected in parallel between the incoming water pipeline (12) and the output pipeline (7); and the two drug mixing parts are respectively connected to the original drug storage mechanism.

3. A scale inhibitor and bactericide pipeline filling device as claimed in claim 2, characterized in that: The two drug mixing sections are a first drug mixing section and a second drug mixing section; the first drug mixing section and the second drug mixing section have the same structural composition; the first drug mixing section comprises a stirrer (1), a first drug mixing box (2), a drug mixing level meter (4), an electromagnetic valve (8), an injection flow meter (9), a frequency converter (10), a metering pump (11) and a pressure transmitter (20); the drug mixing level meter (4) is connected to the first drug mixing box (2), the lower part of the stirrer (1) is vertically placed in the first drug mixing box (2), and the top end of the stirrer (1) is fixed on the upper bottom surface of the first drug mixing box (2); the injection flow meter (9) is connected to the first drug mixing box (2), and the lower part of the stirrer (1) is vertically placed in the first drug mixing box (2), and the top end of the stirrer (1) is fixed on the upper bottom surface of the first drug mixing box (2); the injection flow meter (9) is connected to the first drug mixing box (2), and the injection flow meter (9) is connected to the first drug mixing box (2). A meter (9), a metering pump (11) and a pressure transmitter (20) are connected in sequence to a pipeline between an outlet of a first medicine mixing box (2) and an output pipeline (7); a frequency converter (10) is connected to the metering pump (11); the top of the first medicine mixing box (2) is connected to a water supply pipeline (12), and a solenoid valve (8) is connected between the first medicine mixing box (2) and the water supply pipeline (12); the agitator (1), the medicine mixing liquid level meter (4), the solenoid valve (8), the injection flow meter (9), the frequency converter (10), the metering pump (11) and the pressure transmitter (20) are respectively connected to the controller for electrical signals.

4. A device for filling a pipeline with a scale inhibitor and bactericide according to claim 1, characterized in that: The technical reserve mechanism includes two technical reserve parts; the two technical reserve parts are respectively connected to the drug mixing mechanism.

5. A scale inhibitor and bactericide pipeline filling device as claimed in claim 4, characterized in that: The two technical drug storage sections are a first technical drug storage section and a second technical drug storage section; the first technical drug storage section and the second technical drug storage section have the same structure; the first technical drug storage section comprises a first drug storage box (5), a first drug adding pump (13), a drug storage level gauge (15), a first filling / injection switching reversing valve (16) and a second filling / injection switching reversing valve (17); the drug storage level gauge (15) is vertically connected to the first drug storage box (5); a drug outlet is arranged at the top of the first drug storage box (5), A drug inlet is provided at the bottom; the drug outlet at the top is connected to the drug mixing mechanism via a pipeline, and a second filling / injection switching reversing valve (17) is connected to the connected pipeline; the bottom drug inlet is connected to an external first drug adding pipeline (21), and a first filling / injection switching reversing valve (16) is connected to the pipeline connecting the drug inlet and the first drug adding pipeline (21); a pipeline is connected between the second filling / injection switching reversing valve (17) and the first filling / injection switching reversing valve (16), and a first drug adding pump (13) is connected to the pipeline.

6. A device for filling a pipeline with a scale inhibitor and bactericide according to claim 5, characterized in that: The first medicine storage box (5) in the first raw medicine storage section and the second medicine storage box (6) in the second raw medicine storage section are respectively used for storing bactericides and storing scale inhibitors; the first medicine storage box (5) for storing bactericides has a volume of 1000 liters; the second medicine storage box (6) for storing scale inhibitors has a volume of 500 liters.

7. The antiscaling and bactericide pipeline filling device according to claim 1, characterized in that: It also includes a pry shell; the drug mixing mechanism and the original drug storage mechanism are both placed in the pry shell.

8. A method for filling a scale inhibitor and bactericide pipeline filling device, characterized in that: The antiscalant and bactericide pipeline filling device according to any one of claims 1 to 7 comprises the following steps: Step 1: The controller controls the original drug storage mechanism to add the reserve drug; Step 2: The controller controls the drug mixing mechanism to dispense the drug; Step 3: The controller controls the medicine mixing mechanism to output medicine.

9. A filling method for a pipeline filling device for antiscaling and bactericide according to claim 8, characterized in that: The specific process of the controller controlling the original drug storage mechanism to add the reserve drug in step 1 is as follows: The first step is to connect the first dosing pipeline (21) to an external bactericide barrel and the second dosing pipeline (22) to an external antiscalant barrel; Step 2: The controller controls the second filling / injection switching reversing valve (17) and the fourth filling / injection switching reversing valve (19) to close, and controls the first filling / injection switching reversing valve (16), the third filling / injection switching reversing valve (18) or both to open at the same time, so as to connect the first medicine storage box (5) with the first medicine adding pipeline (21), the second medicine storage box (6) with the second medicine adding pipeline (22) or both at the same time; Step 3: the external bactericide medicine barrel is used as the first medicine storage box (5), and the external antiscalant medicine barrel is used as the second medicine storage box (6) for adding medicine for storage; Step 4: After the first medicine storage box (5) or the second medicine storage box (6) is filled with medicine, the controller controls the first filling / injection switching reversing valve (16), the third filling / injection switching reversing valve (18), or both to close simultaneously.

10. A filling method for a pipeline filling device for antiscaling and bactericide according to claim 8, characterized in that: The specific process of the controller controlling the medicine mixing mechanism to dispense medicine in step 2 is as follows: In the first step, the controller controls the second filling / injection switching reversing valve (17) and the fourth filling / injection switching reversing valve (19) to open, and enables the first medicine storage box (5), the first filling / injection switching reversing valve (16), the first medicine adding pump (13), the second filling / injection switching reversing valve (17), the first medicine mixing box (2) or the second medicine mixing box (3) to communicate with each other; Step 2: Add bactericide, antiscalant or both at the same time according to the preset ratio; Step 3: The controller controls one of the stirrers (1) on the first medicine mixing box (2) and the second medicine mixing box (3) to start or both of them are started, and opens the solenoid valve (8) connected to the first medicine mixing box (2), the solenoid valve (8) on the second medicine mixing box (3), or the solenoid valves (8) on both medicine mixing boxes at the same time, and fills the first medicine mixing box (2), the second medicine mixing box (3), or both of them with stirring water according to a preset water volume, and stirs for a predetermined time; The process of the controller controlling the medicine mixing mechanism to output medicine in step 3 is as follows: The controller controls the metering pump (11) to start, and the configured antiscaling and bactericidal agent is output through the output pipeline (7) and then injected into the well.

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