Passive cloud control high-pressure valve for water injection well

Abstract

The utility model relates to the technical field of high-pressure electric control valves, in particular to a passive cloud control high-pressure valve for a water injection well, which is characterized in that a direct-current motor is connected with a first-stage speed reducer, the first-stage speed reducer is connected with a second-stage speed reducer, and the second-stage speed reducer is connected with a high-pressure valve body through a coupler; the direct current motor is connected with the remote control module, and the remote control module is connected with the cloud server through the wireless transmission module; the solar power supply mechanism is connected with the direct current motor and the remote control module. The solar power supply module is used for supplying power to the direct current motor and the remote control module through solar power generation. The remote control module is used for controlling the direct current motor to start according to a received control instruction, and the high-pressure valve body is driven to rotate through the first-stage speed reducer and the second-stage speed reducer to conduct opening and closing switching. Therefore, control over the high-pressure valve in a power supply limited scene can be achieved, operation can be maintained without the outside of a power supply, opening and closing actions can be conducted in a high-pressure pipeline, the use cost is reduced, and use limitation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure electrically controlled valve technology, specifically a passive cloud-controlled high-pressure valve for water injection wells. Background Technology

[0002] Among existing pipeline valves, there are many types of high-pressure electrically controlled valves. Driving high-pressure valves requires a large torque. To generate a large torque, a strong electrical support is necessary. Therefore, high-pressure valves with a pressure of d reaching or exceeding 16MPa are generally electrically controlled valves that require a wired power supply of 220V or 380V AC or even higher voltage to operate.

[0003] However, in many special field industrial settings such as well sites in most oilfields, there may not be sufficient power supply, but high-voltage electrically controlled valves are still required. Therefore, it is necessary to design a wireless remote-controlled high-voltage electrically controlled valve that does not require an external power source or cables. Utility Model Content

[0004] In view of this, the present invention provides a passive cloud-controlled high-pressure valve for water injection wells to solve the problem that existing high-pressure electrically controlled valves for water injection wells require high-voltage wired power supply to operate, which limits their use in situations where sufficient power supply cannot be provided, such as in the field.

[0005] In the first aspect, this utility model provides a passive cloud-controlled high-pressure valve for water injection wells, comprising: a high-pressure valve body, a DC motor, a first-stage reducer, a second-stage reducer, a solar power supply mechanism, and a remote control module;

[0006] The DC motor is connected to a first-stage reducer, the first-stage reducer is connected to a second-stage reducer, and the second-stage reducer is connected to the high-pressure valve body via a coupling;

[0007] The DC motor is connected to the remote control module, and the remote control module is connected to the cloud server via a wireless transmission module;

[0008] The solar power supply mechanism is connected to the DC motor and the remote control module respectively. The solar power supply module is used to generate power from solar energy to supply power to the DC motor and the remote control module.

[0009] The remote control module is used to control the DC motor to start according to the received control command, and drive the high-pressure valve body to rotate to switch between opening and closing through the first-stage reducer and the second-stage reducer.

[0010] Preferably, the solar power supply mechanism includes: a plurality of solar panels and batteries;

[0011] The plurality of solar panels form a cylindrical solar jacket, and the battery is installed inside the solar jacket and connected to the solar panels;

[0012] The DC motor, primary reducer, secondary reducer, remote control module, and coupling are installed inside the solar panel housing.

[0013] The bottom of the solar cell jacket is connected to the high-pressure valve body, and a waterproof cover is installed on the top.

[0014] Preferably, the rated voltage of the DC motor is greater than or equal to 3.6V, the output power is greater than 70W, the rated current is greater than or equal to 20A, and the speed is greater than or equal to 20000rpm.

[0015] Preferably, one end of the high-pressure valve body is connected to the left connecting body, and the other end is connected to the right connecting body;

[0016] The left connecting body is connected to the left-side pipeline via a left connecting clamp, and the right connecting body is connected to the right-side pipeline via a right connecting clamp.

[0017] Preferably, it further includes: a positioning Hall sensor;

[0018] The positioning Hall sensor is connected to the secondary reducer and the remote control module. The positioning Hall sensor is used to detect the real-time position of the valve in the high-pressure valve body and transmit it to the remote control module.

[0019] Preferably, it further includes: a counting Hall sensor;

[0020] The counting Hall sensor is connected to the first-stage reducer and the remote control module. The counting Hall sensor is used to detect the number of rotations of the output shaft of the first-stage reducer and transmit the data to the remote control module.

[0021] Preferably, it further includes: a first pressure sensor and a second pressure sensor;

[0022] The first pressure sensor is connected to the left connecting body and the remote control module. The first pressure sensor is used to detect the first real-time pressure in the left connecting body and transmit it to the remote control module.

[0023] The second pressure sensor is connected to the right connecting body and the remote control module. The second pressure sensor is used to detect the second real-time pressure inside the right connecting body and transmit it to the remote control module.

[0024] Preferably, the reduction ratio of the first-stage reducer is 50-200;

[0025] The reduction ratio of the two-stage reducer is 100-200.

[0026] Preferably, the open-circuit voltage of the solar panel is greater than or equal to 5.5V;

[0027] The short-circuit current of the solar panel is greater than or equal to 200mA.

[0028] Preferably, it further includes: a coupling bracket;

[0029] The coupling is fitted with a coupling bracket, the top end of which is connected to the secondary reducer, and the bottom end of which is connected to the high-pressure valve body.

[0030] This utility model has the following beneficial effects:

[0031] This utility model provides a passive cloud-controlled high-pressure valve for water injection wells. It uses a DC motor, a first-stage reducer, and a second-stage reducer to drive the high-pressure valve body to rotate and switch on and off. It is powered by a solar power supply mechanism, thereby realizing the control of the high-pressure valve in power-limited scenarios. It can maintain operation without an external power source and can perform switching actions inside the high-pressure pipeline, reducing usage costs and limitations. Attached Figure Description

[0032] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0033] Figure 1 This is a schematic diagram of the structure of the passive cloud-controlled high-pressure valve for water injection wells in this embodiment of the present invention.

[0034] In the diagram, 1-high pressure valve body, 2-coupling, 3-coupling bracket, 4-second stage reducer, 5-first stage reducer, 6-DC motor, 7-solar jacket, 8-circuit board, 9-waterproof top cover, 10-positioning Hall sensor, 11-counting Hall sensor, 12-right connecting clamp, 13-right connecting body, 14-second pressure sensor, 15-second sensor connection channel, 16-left connecting clamp, 17-left connecting body, 18-first pressure sensor, 19-first sensor connection channel, 20-battery cavity. Detailed Implementation

[0035] The present invention will now be described based on embodiments; however, it is worth noting that the present invention is not limited to these embodiments. In the following detailed description of the present invention, certain specific details are described in detail. However, those skilled in the art will fully understand the present invention for the parts not described in detail.

[0036] Furthermore, those skilled in the art should understand that the accompanying drawings are provided only to illustrate the purpose, features, and advantages of this utility model, and are not actually drawn to scale.

[0037] Furthermore, unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to."

[0038] Figure 1 This is a schematic diagram of the passive cloud-controlled high-pressure valve for water injection wells in an embodiment of this utility model. Figure 1 As shown, a passive cloud-controlled high-pressure valve for water injection wells includes: a high-pressure valve body 1, a DC motor 6, a first-stage reducer 5, a second-stage reducer 4, a solar power supply mechanism, and a remote control module. The DC motor 6 is connected to the first-stage reducer 5, the first-stage reducer 5 is connected to the second-stage reducer 4, and the second-stage reducer 4 is connected to the high-pressure valve body 1 via a coupling 2. The DC motor 6 is connected to the remote control module, and the remote control module is connected to a cloud server via a wireless transmission module. The solar power supply mechanism is connected to both the DC motor 6 and the remote control module, and the solar power supply module is used to generate power from solar energy to supply power to both the DC motor 6 and the remote control module. The remote control module is used to control the DC motor 6 to start according to received control commands, which in turn drives the high-pressure valve body 1 to rotate via the first-stage reducer 5 and the second-stage reducer 4 for opening and closing switching.

[0039] In this embodiment of the invention, during use, the high-pressure valve body 1 is installed on the water injection pipeline at the wellhead of the injection well. The cloud server sends valve control commands to the remote control module via a wireless transmission module. Upon receiving the command, the remote control module controls the DC motor 6 to start. After passing through the first-stage reducer 5 and the second-stage reducer 4, the motor drives the ball valve inside the high-pressure valve body 1 to rotate to a predetermined angle (90°) via the coupling 2, thus opening or closing the high-pressure valve. When the high-pressure valve is open, injection water is injected into the well through the high-pressure valve body 1.

[0040] This invention employs a high-efficiency transmission design, where a two-stage reducer 4 is positioned above the high-pressure valve body 1, a first-stage reducer 5 is positioned above the second-stage reducer 4, and a DC motor 6 is positioned above the first-stage reducer 5. The torque output from the DC motor 6 is transmitted to the upper end of the high-pressure valve body 1 with a transmission efficiency greater than 95%, maximizing transmission efficiency. Simultaneously, the two-stage reduction design, namely the first-stage reducer 5 and the second-stage reducer 4, ensures the output torque of the high-pressure valve while reducing the size of the reducers and avoiding their own losses.

[0041] Among them, the wireless transmission module can be used for data connection to a near-field wireless network (Zigbee protocol), and can be used to connect to devices such as near-field servers to facilitate mutual measurement and control of nearby devices; and / or the wireless transmission module can be used for remote 2G / 4G / satellite network connection, and can be used to connect to the cloud server through the remote network to receive cloud commands. At the same time, the remote control module can upload the operating parameter data of the DC motor 6, reducer and valve to the cloud server through the wireless transmission module.

[0042] In this invention, the rated voltage of the DC motor 6 is greater than or equal to 3.6V, the output power is greater than 70W, the rated current is greater than or equal to 20A, and the speed is greater than or equal to 26000rpm.

[0043] In this invention, the reduction ratio of the first-stage reducer 5 is 139; the reduction ratio of the second-stage reducer 4 is 72.

[0044] In this embodiment of the utility model, the high-pressure valve body 1 is driven by a low-voltage, high-current design. The maximum operating voltage of the internal circuit of the valve body is 4.2V, and the maximum operating current of the motor is 20A. While maintaining a safe low voltage, the driving power is maximized.

[0045] The motor section uses a 3.6V, 72W, 20A DC motor 6 with a speed of 26,000rpm. The motor drives rotation in one direction, ultimately driving the ball valve to switch between open and closed states every 90 degrees of rotation.

[0046] Based on the empirical formula for motor power and torque:

[0047] Motor power P (kW) = Torque T (N·m) * Motor speed n (rpm) / 9550;

[0048] It can be seen that the output torque of DC motor 6 is 0.026 N·m.

[0049] Based on a reduction ratio of 139 for the first-stage reducer 5 and 72 for the second-stage reducer 4, and considering a transmission efficiency of 95% and a combined reducer efficiency of 80%, the driving torque after reduction is approximately 150 Nm, and the speed is approximately 2.6 rpm. This means that each switch change requires approximately 6 seconds to rotate 90 degrees.

[0050] The formula for calculating the opening torque of a ball valve can be expressed as:

[0051] T = d * d * π / 4 * P * k * d;

[0052] In the formula: T is the opening torque (N·m); d is the ball valve diameter (m); P is the opening pressure; k is the friction coefficient, which is generally taken as 0.15.

[0053] According to the above formula for calculating the opening torque of a ball valve, a ball valve with a diameter of DN32 and a pressure of 35MPa requires a torque of 132N·m.

[0054] Therefore, the DC motor 6 and the torque of 150 N·m after deceleration by the reducer used in this utility model can meet the requirements.

[0055] In this utility model, the solar power supply mechanism includes: a plurality of solar panels and a battery; the plurality of solar panels form a cylindrical solar jacket 7, the battery is installed inside the solar jacket 7 and connected to the solar panels; the DC motor 6, the first-stage reducer 5, the second-stage reducer 4, the remote control module and the coupling 2 are installed inside the solar jacket 7; the bottom end of the solar jacket 7 is connected to the high-pressure valve body 1, and the top end is fitted with a waterproof cover.

[0056] In this invention, the open-circuit voltage of the solar panel is greater than or equal to 5.5V; the short-circuit current of the solar panel is greater than or equal to 200mA.

[0057] In this embodiment of the invention, the solar jacket 7 is a cylindrical solar jacket composed of eight 5.5V, 230mA solar panels, with a waterproof top cover 9 on the top. The DC motor 6, the primary reducer 5, the secondary reducer 4, the remote control module, and the coupling 2 are located inside the solar jacket 7. Inside the solar jacket 7, surrounding the primary reducer 5 and the DC motor 6, is a battery cavity 20, in which a rechargeable battery pack is installed.

[0058] Considering that only two solar panels of the solar jacket 7 can receive sunlight at the same time, and assuming that the power is calculated based on 8 hours of operation per day, the daily charging amount is 230mA*2*8h≈3.6Ah. Considering half of the days are cloudy or rainy, the average daily charging amount is 1.8Ah.

[0059] The rechargeable battery pack inside the battery cavity 20 uses 22 3.6V, 2.7Ah rated 18650 rechargeable batteries connected in parallel, with a total battery capacity of 2.7Ah * 22 = 59.4Ah. If the batteries are completely depleted, it will take approximately 33 days for solar energy to fully charge the battery pack.

[0060] The DC motor operates at a maximum current of approximately 20A when the valve is open and approximately 5A when the valve is closed, averaging about 10A. Each valve opening or closing action takes 6 seconds, resulting in an average power consumption of 0.017Ah per operation. Therefore, with a fully charged battery and without considering solar charging, the valve can be opened and closed approximately 3494 times (59.4 / 0.017 ≈ 3494 times).

[0061] Based on the charging capacity of the solar panels, photovoltaic charging can keep the high-pressure valve open and close approximately 1.8 / 0.017 ≈ 106 times per day.

[0062] If it is not a full opening or closing operation, but only a minor adjustment, and the valve adjustment time is calculated at 0.4 seconds each time, photovoltaic charging can guarantee 1600 adjustments per day, that is, one valve adjustment per minute. This can meet the requirements for most applications that do not require too frequent adjustments.

[0063] In this utility model, one end of the high-pressure valve body 1 is connected to the left connecting body 17, and the other end is connected to the right connecting body 13; the left connecting body 17 is connected to the left pipeline through the left connecting clamp 16, and the right connecting body 13 is connected to the right pipeline through the right connecting clamp 12.

[0064] In this embodiment of the utility model, the flow channel portion of the high-pressure valve body 1 is composed of, from left to right, a left connecting clamp 16, a left connecting body 17, a high-pressure valve body 1, a right connecting body 13, and a right connecting clamp 12 connected together.

[0065] This invention also includes: a positioning Hall sensor 10; the positioning Hall sensor 10 is connected to the secondary reducer 4 and the remote control module, and the positioning Hall sensor 10 is used to detect the real-time position of the valve of the high-pressure valve body 1 and transmit it to the remote control module.

[0066] In this embodiment of the invention, a positioning Hall sensor mounting hole is provided on the top of the coupling bracket 3, and the positioning Hall sensor 10 is connected to the inside of the mounting hole and the output shaft of the secondary reducer 4. The positioning Hall sensor 10 is used to detect the rotation angle of the ball valve inside the high-pressure valve body 1 driven by the secondary reducer 4, and transmits the rotation angle data to the remote control module through a line. The remote control module then transmits the ball valve rotation angle data to the cloud server through a wireless transmission module.

[0067] This invention also includes a counting Hall sensor 11; the counting Hall sensor 11 is connected to the first-stage reducer 5 and the remote control module, and the counting Hall sensor 11 is used to detect the number of rotations of the output shaft of the first-stage reducer 5 and transmit it to the remote control module.

[0068] In this embodiment of the invention, a counting Hall sensor mounting hole is provided on the bracket between the secondary reducer 4 and the primary reducer 5. The mounting hole and the output shaft of the primary reducer 5 are connected to the counting Hall sensor 11. The counting Hall sensor 11 is used to detect the rotation count data of the primary reducer 5 and transmits the rotation count data to the remote control module through a line. The remote control module then transmits the rotation count data of the primary reducer 5 to the cloud server through a wireless transmission module.

[0069] This invention further includes: a first pressure sensor 18 and a second pressure sensor 14; the first pressure sensor 18 is connected to the left connecting body 17 and the remote control module, and is used to detect a first real-time pressure in the left connecting body 17 and transmit it to the remote control module; the second pressure sensor 14 is connected to the right connecting body 13 and the remote control module, and is used to detect a second real-time pressure in the right connecting body 13 and transmit it to the remote control module.

[0070] In this embodiment of the utility model, a first pressure sensor 18 and a first sensor connection channel 19 are installed on the left connecting body 17; a second pressure sensor 14 and a second sensor connection channel 15 are installed on the right connecting body 13.

[0071] The first pressure sensor 18 is connected to the remote control module through the first sensor connection channel 19. The probe of the first pressure sensor 18 is connected to the inside of the left connecting body 17. The first pressure sensor 18 detects the first real-time pressure of the fluid inside the left connecting body 17 and transmits it to the cloud server through the remote control module.

[0072] The second pressure sensor 14 is connected to the remote control module through the second sensor connection channel 15. The probe of the second pressure sensor 14 is connected to the inside of the right connecting body 13. The second pressure sensor 14 detects the second real-time pressure of the fluid inside the right connecting body 13 and transmits it to the cloud server through the remote control module.

[0073] This utility model also includes: a coupling bracket 3; the coupling bracket 3 is sleeved on the outside of the coupling 2, the top end of the coupling bracket 3 is connected to the secondary reducer 4, and the bottom end is connected to the high-pressure valve body 1.

[0074] In this embodiment of the invention, the top of the high-pressure valve body 1 is connected to a coupling bracket 3, and the external screws of the coupling bracket 3 connect to and support the solar panel jacket 7. Inside the solar panel jacket 7, a coupling 2 is installed inside the coupling bracket 3. The coupling 2 and the coupling bracket 3 sequentially support and connect the two-stage reducer 4, the first-stage reducer 5, the DC motor 6, and the circuit board 8 of the remote control module. The bottom ends of the coupling 2 and the coupling bracket 3 are connected to the top of the high-pressure valve body 1.

[0075] In this embodiment of the invention, different pipeline diameters correspond to different high-pressure valve diameters. The high-pressure valve designed in this invention can drive valves with pressure resistance values ​​shown in Table 1 below:

[0076] Table 1: Applicable Valve Parameter Table

[0077]

[0078] This utility model discloses a passive cloud-controlled high-pressure valve, which requires no external power supply and can operate solely using an internal battery and solar energy. It can receive commands from a cloud server to control its operation and upload data to the cloud server. No communication cable is required; it supports short-range wireless network (Zigbee protocol) data connection and long-range 2G / 4G / satellite network connection. The remote network connection to the cloud server receives commands and uploads operational data. Using a DC motor with a two-stage reducer, it can drive high-pressure ball valves ranging from 16-100MPa; the standard operating voltage is 3.6V, eliminating the need for high-voltage protection; it meets the on / off control requirements of water injection valves in oilfield water injection wells, eliminating the need for power supplies and wiring at the well site, resulting in low operating costs.

[0079] The embodiments described above are merely illustrative of implementation methods of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications, equivalent substitutions, and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A passive cloud-controlled high-pressure valve for water injection wells, characterized in that, include: High-pressure valve body (1), DC motor (6), first-stage reducer (5), second-stage reducer (4), solar power supply mechanism and remote control module; The DC motor (6) is connected to the first-stage reducer (5), the first-stage reducer (5) is connected to the second-stage reducer (4), and the second-stage reducer (4) is connected to the high-pressure valve body (1) through the coupling (2). The DC motor (6) is connected to the remote control module, and the remote control module is connected to the cloud server through a wireless transmission module; The solar power supply mechanism is connected to the DC motor (6) and the remote control module respectively. The solar power supply mechanism is used to generate electricity from solar energy to power the DC motor (6) and the remote control module. The remote control module is used to control the DC motor (6) to start according to the received control command, and drive the high-pressure valve body (1) to rotate through the first-stage reducer (5) and the second-stage reducer (4) to switch between opening and closing.

2. The passive cloud-controlled high-pressure valve for water injection wells according to claim 1, characterized in that, The solar power supply mechanism includes: several solar panels and batteries; The plurality of solar panels constitute a cylindrical solar jacket (7), and the battery is installed inside the solar jacket (7) and connected to the solar panels; The DC motor (6), the first-stage reducer (5), the second-stage reducer (4), the remote control module, and the coupling (2) are installed inside the solar cell jacket (7); The bottom of the solar jacket (7) is connected to the high-pressure valve body (1), and a waterproof cover is installed on the top.

3. The passive cloud-controlled high-pressure valve for water injection wells according to claim 1, characterized in that: The rated voltage of the DC motor (6) is greater than or equal to 3.6V, the output power is greater than 70W, the rated current is greater than or equal to 20A, and the speed is greater than or equal to 20000rpm.

4. The passive cloud-controlled high-pressure valve for water injection wells according to claim 1, characterized in that: One end of the high-pressure valve body (1) is connected to the left connecting body (17), and the other end is connected to the right connecting body (13). The left connecting body (17) is connected to the left pipeline via the left connecting clamp (16), and the right connecting body (13) is connected to the right pipeline via the right connecting clamp (12).

5. The passive cloud-controlled high-pressure valve for water injection wells according to claim 1, characterized in that, Also includes: Positioning Hall sensor (10); The positioning Hall sensor (10) is connected to the secondary reducer (4) and the remote control module. The positioning Hall sensor (10) is used to detect the real-time position of the valve of the high-pressure valve body (1) and transmit it to the remote control module.

6. The passive cloud-controlled high-pressure valve for water injection wells according to claim 1, characterized in that, Also includes: Counting Hall sensor (11); The counting Hall sensor (11) is connected to the first-stage reducer (5) and the remote control module. The counting Hall sensor (11) is used to detect the number of rotations of the output shaft of the first-stage reducer (5) and transmit the data to the remote control module.

7. The passive cloud-controlled high-pressure valve for water injection wells according to claim 4, characterized in that, Also includes: First pressure sensor (18) and second pressure sensor (14); The first pressure sensor (18) is connected to the left connecting body (17) and the remote control module. The first pressure sensor (18) is used to detect the first real-time pressure in the left connecting body (17) and transmit it to the remote control module. The second pressure sensor (14) is connected to the right connecting body (13) and the remote control module. The second pressure sensor (14) is used to detect the second real-time pressure inside the right connecting body (13) and transmit it to the remote control module.

8. The passive cloud-controlled high-pressure valve for water injection wells according to claim 1, characterized in that: The reduction ratio of the first-stage reducer (5) is 50-200; The reduction ratio of the secondary reducer (4) is 100-200.

9. The passive cloud-controlled high-pressure valve for water injection wells according to claim 2, characterized in that: The open-circuit voltage of the solar panel is greater than or equal to 5.5V; The short-circuit current of the solar panel is greater than or equal to 200mA.

10. The passive cloud-controlled high-pressure valve for water injection wells according to any one of claims 1-9, characterized in that, Also includes: Coupling bracket (3); The coupling (2) is fitted with the coupling bracket (3), the top end of the coupling bracket (3) is connected to the secondary reducer (4), and the bottom end is connected to the high pressure valve body (1).

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