Low-energy water treatment agent injection device based on hydraulic drive and automatic control

Abstract

This utility model belongs to the technical field of water treatment equipment, specifically a low-energy water treatment dosing device based on hydraulic drive and automatic control. It includes a storage tank with a conical valve fixedly inserted inside, and multiple conical limiting rings fixedly connected inside the conical valve. This utility model uses produced water to drive a turbine generator to generate electricity, which powers the automatic control system. The flow rate triggers the inlet control component to achieve dynamic adjustment of the dosage. A jet plug is installed inside the water tank; based on the Venturi principle, a high-speed jet generates negative pressure, causing the reagent to mix turbulently with the produced water. The device consists of a water tank, a conical valve adjustment system, a reagent storage tank, a turbine generator system, an automatic control system, and a jet plug mixing system. It is suitable for liquid or granular reagents. It is applicable to the automatic and precise dosing of desulfurization, pH adjustment, and flocculation reagents in natural gas well produced water treatment, and is particularly suitable for mountainous environments lacking dedicated power lines.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a low-energy water treatment dosing device based on hydraulic drive and automatic control. Background Technology

[0002] During natural gas extraction, produced water treatment requires the addition of chemicals (or hazardous chemicals) for desulfurization, pH adjustment, flocculation, etc. Currently, the following problems exist in this field:

[0003] 1. Existing chemical injection relies on power equipment such as pumps and mixers. However, natural gas wells located in mountainous areas often lack dedicated power lines and require auxiliary facilities such as generators, resulting in high investment costs and high energy consumption.

[0004] 2. Existing devices mostly control the dosage by probe sensing or manual setting. When not operating continuously, the dosage is prone to be too large, resulting in waste of medicine and increased costs.

[0005] 3. The maintenance and replacement costs of power equipment and probes are high, especially in corrosive environments where wear and tear is accelerated; manual refueling carries safety risks such as hydrogen sulfide poisoning and burns from strong acids and alkalis.

[0006] 4. The existing equipment has insufficient mixing effect between the reagents and the produced water, which affects the treatment efficiency; the degree of automation is low, and it is impossible to achieve full-process automatic control based on parameters such as liquid level. Utility Model Content

[0007] The purpose of this invention is to address the problems mentioned in the background art, such as high energy consumption, easy waste of reagents and increased costs, and certain safety hazards in existing reagent dosing devices. Therefore, this invention proposes a low-energy water treatment reagent dosing device based on hydraulic drive and automatic control.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A low-energy water treatment dosing device based on hydraulic drive and automatic control includes a storage tank. A conical valve is fixedly inserted inside the storage tank. Multiple conical limiting rings are fixedly connected inside the conical valve. A hinged half-moon shaped cover is rotatably connected to the top of the conical valve. A drain outlet is provided on one side of the storage tank. An electric butterfly valve is threadedly connected to the drain outlet. Multiple injection plugs are fixedly connected to the side of the storage tank near the drain outlet. A water inlet is provided on the side of the storage tank away from the drain outlet. A turbine generator is installed in the water inlet. A hydraulic push plate is rotatably connected to the side of the storage tank near the water inlet. A liquid level sensor is fixedly connected to the inner wall of the storage tank on the side near the hydraulic push plate. A pressure sensor is fixedly connected to the inner wall of the storage tank on the side away from the water inlet. A slag discharge port is provided at the bottom of the storage tank. Electric ball valves are threadedly connected to both the slag discharge port and the drain outlet.

[0010] Preferably, the top of the storage tank is rotatably connected to a quick-opening cover.

[0011] Preferably, the top of the hydraulic pusher plate is positioned corresponding to the bottom of the conical valve.

[0012] Preferably, the multiple spray plugs are welded to the inner wall of the storage tank in three layers (high, medium, and low) at a 45° angle to the water flow direction. The inlet end of the spray plug is connected to the main channel of the storage tank, and the outlet end of the spray plug faces the drug delivery area.

[0013] Preferably, the liquid level sensor includes a high-level liquid level sensor and a low-level liquid level sensor, which are respectively installed on the inner wall of the storage tank at a height of 2 / 3 and 1 / 3 from the bottom of the tank.

[0014] Preferably, it also includes an automatic control system, which includes a data processing unit, a liquid level monitoring module, a water inlet control module, a drainage control module, and a pressure detection module, and each module is electrically connected to the data processing unit.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The turbine power generation system in this utility model utilizes the kinetic energy of water to convert it into electrical energy, eliminating the need for an external power source and generator, thus reducing investment and energy consumption, and making it suitable for scenarios without power supply. Through the linkage of a hydraulic pusher plate and a conical valve, and automatic control of water inlet / outlet via liquid level monitoring, the dosage of chemicals is dynamically adapted to the flow rate, avoiding chemical waste and reducing costs.

[0017] 2. In this invention, the jet plug utilizes the Venturi tube principle to create a high-speed jet and turbulence, enhancing the mixing efficiency of the reagent and the produced water, and improving the water treatment effect. It employs hydraulic transmission, converting the kinetic energy of water flow into mechanical energy to drive the device, eliminating the need for an external power source, thus freeing it from traditional electric dependence and significantly reducing energy consumption.

[0018] 3. This invention eliminates the need for power equipment such as pumps and agitators, reducing maintenance costs and probe replacement expenses. Especially when treating corrosive produced water, the simple equipment structure reduces wear and tear, significantly lowering maintenance costs. It enables unattended automatic dosing, avoiding direct contact with chemicals and effectively preventing risks of poisoning and burns from hydrogen sulfide release, strong acid / alkali splashes, or toxic gases from strong oxidants, ensuring operator safety. It can accommodate various chemical forms (liquid or powder), making it suitable for a wide range of applications. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of a low-energy water treatment dosing device based on hydraulic drive and automatic control proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the control system of a low-energy water treatment dosing device based on hydraulic drive and automatic control proposed in this utility model.

[0021] In the diagram: 1. Quick-opening cover; 2. Storage tank; 3. Loose-leaf crescent-shaped cover; 4. Conical limit ring; 5. Conical valve; 6. Electric butterfly valve; 7. Drain outlet; 8. Liquid level sensor; 9. Injector plug; 10. Pressure sensor; 11. Turbine generator; 12. Water inlet; 13. Electric ball valve; 14. Hydraulic push plate; 15. Slag discharge outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-2 A low-energy water treatment dosing device based on hydraulic drive and automatic control includes a storage tank 2, a quick-opening cover 1 rotatably connected to the top of the storage tank 2, a conical valve 5 fixedly inserted inside the storage tank 2, a plurality of conical limiting rings 4 fixedly connected inside the conical valve 5, and a hinged half-moon petal cover 3 rotatably connected to the top of the conical valve 5.

[0024] In this embodiment, a drain outlet 7 is provided on one side of the storage tank 2. An electric butterfly valve 6 is connected to the drain outlet 7 by an internal thread. Multiple spray plugs 9 are fixedly connected to the side of the storage tank 2 near the drain outlet 7. The multiple spray plugs 9 are welded to the inner wall of the storage tank 2 in three layers of high, medium and low, forming an angle of 45° with the water flow direction. The inlet end of the spray plug 9 is connected to the main channel of the storage tank 2, and the outlet end of the spray plug 9 faces the drug delivery area.

[0025] In this embodiment, the storage tank 2 is provided with an inlet 12 on the side away from the drain outlet 7, and a turbine generator 11 is provided inside the inlet 12. A hydraulic push plate 14 is rotatably connected to the side of the storage tank 2 near the inlet 12, and the top of the hydraulic push plate 14 is correspondingly set to the bottom of the cone valve 5.

[0026] In this embodiment, a liquid level sensor 8 is fixedly connected to the inner wall of the storage tank 2 near the hydraulic push plate 14. The liquid level sensor 8 includes a high liquid level sensor and a low liquid level sensor, which are respectively installed on the inner wall of the storage tank 2 at 2 / 3 and 1 / 3 of the height from the bottom of the tank.

[0027] In this embodiment, a pressure sensor 10 is fixedly connected to the inner wall of the storage tank 2 on the side away from the water inlet 12, and a slag discharge port 15 is provided at the bottom of the storage tank 2. Both the slag discharge port 15 and the water outlet 7 are threadedly connected to an electric ball valve 13.

[0028] In this embodiment, an automatic control system is also included. The automatic control system includes a data processing unit, a liquid level monitoring module, a water inlet control module, a drainage control module, and a pressure detection module. Each module is electrically connected to the data processing unit.

[0029] In this embodiment, the operation process is as follows:

[0030] When the liquid level in storage tank 2 is lower than the low set value, the data processing unit commands the electric ball valve to open, and the extracted water enters the inlet pipe, driving the turbine blades of the turbine generator to rotate and generate electricity, which is stored in the battery; at the same time, the water flows into storage tank 2, driving the hydraulic push plate 14 to rotate counterclockwise.

[0031] The primary power source is water flow, which enters the storage tank 2 through the inlet. Its pressure and kinetic energy provide power for the operation of the device. The driven components include a hydraulic push plate 14, a cone valve 5, and a hinged crescent-shaped cover 3.

[0032] When the extracted water enters the storage tank 2 through the inlet, the water flow with a certain pressure pushes the hydraulic push plate 14 to rotate counterclockwise. As a driven component, the hydraulic push plate 14 begins to rotate counterclockwise under the action of the water flow.

[0033] The hydraulic push plate 14 strikes the bottom of the cone valve 5, causing it to move upwards and push open the hinged crescent-shaped cover 3, allowing the medicine in the medicine storage tank to fall into the storage tank 2. The faster the water flow, the larger the opening gap of the cone valve 5, and the more medicine is added; when the water flow stops or becomes too slow, the cone valve 5 resets, and the cover closes.

[0034] After the hydraulic pusher plate 14 rotates counterclockwise, it strikes the bottom of the cone valve 5, causing the cone valve 5 to move upward. As a driven component, the cone valve 5 reciprocates upward along the cylinder under the impact force of the hydraulic pusher plate 14. When the water flow velocity is high and the pressure is high, the hydraulic pusher plate 14 acquires a large amount of mechanical energy, resulting in a large force impacting the cone valve 5 and a large upward movement of the cone valve 5. Conversely, when the water flow velocity is slow and the pressure is low, the hydraulic pusher plate 14 acquires a small amount of mechanical energy, resulting in a small force impacting the cone valve 5 and a small upward movement of the cone valve 5.

[0035] When the conical valve 5 moves upward, its tip contacts the top hinged crescent-shaped cover 3, pushing it to open slightly. As a driven component, the hinged crescent-shaped cover 3 opens upward under the push of the conical valve 5. At this time, the powder in the medicine storage tank falls under its own weight, passing through the opening of the hinged crescent-shaped cover 3 into the storage tank 2, thus dispensing the medicine. When the water flow is too small to push the hydraulic push plate 14 upward, the conical valve 5 automatically moves downward due to its own weight, and the hinged crescent-shaped cover 3 closes due to the downward gravity of the medicine, stopping the dispensing of the medicine.

[0036] When water flows through the jet plug, a high-speed jet is formed at the outlet end, generating negative pressure, which draws the surrounding chemicals and water into the jet area, creating turbulent mixing.

[0037] The data processing unit instructs the electric butterfly valve 6 to open and drain water based on the set processing time (e.g., 30 minutes) or the signal from the liquid level sensor 8. When the liquid level drops to the low set value, the electric butterfly valve 6 closes, completing one work cycle.

[0038] For liquid reagent dispensing, the principle of the device is the same as that for powdered and granular reagent dispensing, the main difference being that the conical regulating valve is replaced with a funnel-shaped regulating valve. The liquid reagent is stored in a reagent storage tank. When the water flow pushes the hydraulic push plate 14 to strike the funnel-shaped regulating valve, the funnel-shaped regulating valve reciprocates up and down, opening or closing the outlet of the reagent storage tank, thus achieving automatic dispensing of the liquid reagent. The dispensing amount is also dynamically adjusted according to the water flow rate and pressure.

[0039] In this embodiment, the turbine power generation system utilizes the kinetic energy of water flow to convert it into electrical energy, eliminating the need for an external power source and generator, thus reducing investment and energy consumption, and making it suitable for scenarios without power supply. Through the linkage between the hydraulic push plate 14 and the cone valve 5, and automatic control of water inlet / outlet via liquid level monitoring, the dosage of chemicals is dynamically adapted to the flow rate, avoiding chemical waste and reducing costs.

[0040] In this embodiment, the jet plug utilizes the Venturi tube principle to generate a high-speed jet and turbulence, enhancing the mixing efficiency of the reagent and the produced water and improving the water treatment effect. Hydraulic transmission converts the kinetic energy of the water flow into mechanical energy to drive the device, eliminating the need for an external power source, thus freeing it from traditional electric dependence and significantly reducing energy consumption.

[0041] In this embodiment, no power equipment such as pumps and agitators is required, reducing the costs of power equipment maintenance and probe replacement. Especially when treating corrosive produced water, the equipment structure is simple, wear and tear is reduced, and maintenance costs are significantly lowered. It enables unattended automated dosing, avoiding direct contact with chemicals and effectively preventing risks of poisoning, burns, etc., from hydrogen sulfide release, strong acid and alkali splashes, or toxic gases generated by strong oxidants, ensuring operator safety. It can accommodate the dosing of different chemical forms (liquid or powder), making it suitable for a wide range of scenarios.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low energy consumption water treatment dosing device based on hydraulic drive and automatic control, comprising a storage tank (2), characterized in that: A conical valve (5) is fixedly inserted inside the storage tank (2). Multiple conical limiting rings (4) are fixedly connected inside the conical valve (5). A hinged semi-circular cover (3) is rotatably connected to the top of the conical valve (5). A drain outlet (7) is provided on one side of the storage tank (2). An electric butterfly valve (6) is threaded into the drain outlet (7). Multiple spray plugs (9) are fixedly connected to the side of the storage tank (2) near the drain outlet (7). A water inlet (12) is provided on the side of the storage tank (2) away from the drain outlet (7). A turbine generator (11) is installed inside the inlet (12). A hydraulic push plate (14) is rotatably connected to the side of the storage tank (2) near the inlet (12). A liquid level sensor (8) is fixedly connected to the inner wall of the storage tank (2) near the hydraulic push plate (14). A pressure sensor (10) is fixedly connected to the inner wall of the storage tank (2) away from the inlet (12). A slag discharge port (15) is provided at the bottom of the storage tank (2). An electric ball valve (13) is threadedly connected to both the slag discharge port (15) and the drain port (7).

2. The low-energy water treatment doser based on hydraulic drive and automatic control according to claim 1, characterized in that: The top of the storage tank (2) is rotatably connected to a quick-opening cover plate (1).

3. The low-energy water treatment doser based on hydraulic drive and automatic control according to claim 1, characterized in that: The top of the hydraulic push plate (14) is positioned corresponding to the bottom of the cone valve (5).

4. The low-energy water treatment doser based on hydraulic drive and automatic control according to claim 1, characterized in that: Multiple spray plugs (9) are welded to the inner wall of the storage tank (2) in three layers: high, medium and low, forming an angle of 45° with the water flow direction. The inlet end of the spray plug (9) is connected to the main channel of the storage tank (2), and the outlet end of the spray plug (9) faces the drug delivery area.

5. The low energy consumption water treatment dosing device based on hydraulic drive and automatic control according to claim 1, characterized in that: The liquid level sensor (8) includes a high-level liquid level sensor and a low-level liquid level sensor, which are respectively installed on the inner wall of the storage tank (2) at a height of 2 / 3 and 1 / 3 from the bottom of the tank.

6. The low energy consumption water treatment dosing device based on hydraulic drive and automatic control according to claim 1, characterized in that: It also includes an automatic control system, which comprises a data processing unit, a liquid level monitoring module, a water inlet control module, a drainage control module, and a pressure detection module, each of which is electrically connected to the data processing unit.

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