An intelligent flow control transmitter

Abstract

The present invention discloses an intelligent flow control transmitter, comprising a flow pipe installed in a shell, a flow detection device, an adjustment device and an intelligent control device. The adjustment device comprises a driving core that can move back and forth and extend into the flow pipe. The flow detection device can collect flow information passing through the flow pipe and send the flow information to the intelligent control device. The intelligent control device determines whether the gas-liquid ratio is within a set range based on flow information analysis. When the gas-liquid ratio exceeds the set range, the intelligent control device controls the driving core to perform telescopic movement in the flow pipe, thereby adjusting the lumen size of the flow pipe to achieve flow size adjustment, so that the gas-liquid ratio is within a qualified set range, thereby achieving the purpose of automatically adjusting the gas-liquid ratio. The detection sensitivity is high, the adjustment is convenient and accurate, and it is ensured that the gas-liquid ratio of oil and gas recovered at the gas station meets national requirements and the operation is safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas recovery in gas stations, and in particular to an intelligent flow control transmitter. Background Art

[0002] The oil and gas recovery system of a gas station uses oil and gas recovery technology to collect volatilized gasoline and gas during the process of loading and unloading gasoline and refueling vehicles, so as to achieve the purpose of recycling and utilization, prevent air pollution caused by oil and gas volatilization, eliminate safety hazards, and obtain benefits by improving energy utilization and reducing economic losses.

[0003] The state requires that the gas-to-liquid ratio of the oil and gas recovery system at a gas station should be within the range of greater than or equal to 1.0 and less than or equal to 1.2. The gas-to-liquid ratio refers to the ratio of the oil output of the gasoline filling gun to the gas return volume of the filling gun. It is also an important indicator to measure whether the secondary oil and gas recovery system in the station is working properly. Therefore, the detection value of the gas-to-liquid ratio should be within the national standard range. At present, the oil and gas recovery systems developed by most manufacturers can only perform a single collection and monitoring function. For example, by connecting a vortex flow meter to the connecting pipe of the gas filling gun, the flow data detected by the vortex flow meter is transmitted to the intelligent monitoring system. The system calculates a reasonable gas-to-liquid ratio based on the actual airflow size. When refueling with the fuel gun, the oil and gas are drawn into the oil and gas recovery system through the oil and gas recovery hole at the front end of the gun barrel. Finally, it is debugged to a gas-to-oil ratio of 1.0 through a professional calibrator.

[0004] Although this vortex flowmeter can meet the existing gas-liquid ratio requirements after initial calibration, gas stations are in operation for a long time. Due to the influence of factors such as changes in the use environment, changes in tank pressure, and aging of the vacuum pump, the gas-liquid ratio detected and calculated by the vortex flowmeter changes, and may even exceed or fall below the national standard requirements. Once a deviation occurs, the staff needs to adjust it through the manual valve on the fuel gun, that is, the staff uses the return air throttle valve of the fuel gun to debug it to the gas-oil ratio of 1.0 again. However, this existing debugging method makes it difficult to control the gas-liquid ratio on site, the entire debugging is difficult, and the manual debugging efficiency is low and the error is large, and the debugging reliability is poor, so that the oil and gas recovery does not comply with the relevant national regulations, which will affect the stable operation of the fuel gun. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the gas-liquid ratio of oil and gas recovery in the prior art exceeds or is lower than the national standard requirement, and the staff needs to manually adjust it through the manual valve on the oil gun. This debugging method makes on-site control of the gas-liquid ratio difficult, the entire debugging is difficult, and the manual debugging efficiency is low and the error is large, so that the oil and gas recovery does not comply with national regulations.

[0006] To solve the above technical problems, the present invention provides an intelligent flow control transmitter, comprising a housing and a flow pipe disposed in the housing for conveying oil and gas, and further comprising:

[0007] a flow detection device, mounted on the housing, comprising a vortex generator disposed in the flow conduit for forming a vortex, and a flow sensor disposed adjacent to one side of the vortex generator, the flow sensor collecting flow information by detecting vortex frequency;

[0008] an adjusting device, mounted on the housing, comprising a driving core that can reciprocate and extend through the flow conduit to adjust the lumen size of the flow conduit;

[0009] An intelligent control device is connected to the flow detection device and the regulating device respectively, and is used to receive the flow information and analyze and determine whether the gas-liquid ratio is within a set range. When the gas-liquid ratio exceeds the set range, the intelligent control device controls the driving core to move in the flow pipe.

[0010] As a preferred solution, a first mounting groove suitable for installing the regulating device is provided in the shell, and the first mounting groove has a through-hole structure arranged radially along the flow pipe to connect to the flow pipe, and the driving core penetrates into the flow pipe through the through-hole structure.

[0011] As a preferred solution, a sealing structure is provided between the driving core and the through-hole structure, and the sealing structure includes a hollow sleeve provided in the through-hole structure, and a sealing ring sealingly installed between the hollow sleeve and the driving core.

[0012] As a preferred solution, an annular step is provided in one end of the through-hole structure facing the flow pipe, one end of the hollow sleeve abuts against the annular step and a sealing groove suitable for accommodating the sealing ring is formed between the annular step.

[0013] As a preferred solution, the regulating device is a servo motor, and the servo motor drives the driving core to reciprocate along the radial direction of the flow pipe.

[0014] As a preferred solution, it also includes a manual calibration valve device inserted into the flow pipe, the manual calibration valve device includes an adjusting rod that is telescopic along the radial direction of the flow pipe and is arranged opposite to the driving core, the adjusting rod is arranged opposite to the driving core and forms an adjustable valve port structure.

[0015] As a preferred solution, the vortex generator is a polygonal column structure, and the vortex generator is arranged near the inlet end of the flow pipe; the driving core is arranged near the outlet end of the flow pipe.

[0016] As a preferred solution, the shell is also provided with a second installation groove suitable for installing the flow sensor, and the flow sensor has a sensing end that penetrates into the flow pipe, and the sensing end is a sheet-like structure and is adjacent to the side of the vortex generator facing away from the inlet end.

[0017] As a preferred solution, the intelligent control device includes a circuit board component installed in the second mounting slot and connected to the flow sensor, and a central controller connected to the circuit board component and the servo motor by wire or wireless, respectively. The circuit board component is used to receive the flow information and send it to the central controller, and the servo motor is driven by the central controller.

[0018] As a preferred solution, the second mounting groove and the first mounting groove are arranged on the top of the shell, and a cover structure that seals and covers the second mounting groove and the first mounting groove is installed on the shell.

[0019] The technical solution of the present invention has the following advantages over the prior art:

[0020] 1. The intelligent flow control transmitter provided by the present invention can collect flow information passing through the flow pipeline in real time through the flow detection device when the flow pipeline is transporting oil and gas, and send the flow information to the intelligent control device. The intelligent control device calculates the corresponding gas-liquid ratio based on the flow information analysis, and at the same time determines whether the gas-liquid ratio is within the set range. When the gas-liquid ratio exceeds the set range, the intelligent control device controls the driving core of the regulating device to perform telescopic movement in the flow pipeline, thereby adjusting the lumen size of the flow pipeline to achieve flow adjustment. In this way, the flow ratio deviation can be compensated in time, so that the gas-liquid ratio is within the qualified set range. By adopting this technical solution, the moving distance of the driving core in the flow pipeline is regulated in real time according to the gas-liquid ratio, so as to achieve the purpose of automatically adjusting the gas-liquid ratio. The detection sensitivity is high, the adjustment is convenient, accurate and reliable, and the gas-liquid ratio of oil and gas recovered at the gas station is guaranteed to meet national requirements, ensuring that each refueling is qualified and the operation is safe and reliable.

[0021] 2. The intelligent flow control transmitter provided by the present invention adjusts the flow rate of the flow pipe by driving the core to achieve a gas-liquid ratio control within the range of 1.0-1.2. The entire process does not require manual operation, and the adjustment is convenient and stable. In addition, the intelligent flow control transmitter is lightweight and can be used in harsh working environments. Factors such as humidity and gasoline will not affect the sensitivity of the transmitter. It is compatible with any gas recovery system, has strong adaptability and good practicality, and is conducive to improving the performance of the oil and gas recovery system.

[0022] 3. The intelligent flow control transmitter provided by the present invention is provided with a through-hole structure radially connected to the flow pipe according to the first installation groove. The driving core extends into the flow pipe through the through-hole structure, so that the diameter of the tube cavity of the flow pipe is adjusted by the driving core performing telescopic movement in the flow pipe, so that the flow rate of gasoline transported by the flow pipe changes accordingly to meet the set requirements of the gas-liquid ratio. The adjustment is convenient and the operation is stable and reliable.

[0023] 4. The intelligent flow control transmitter provided by the present invention installs a hollow sleeve in the through-hole structure and arranges a sealing ring between the hollow sleeve and the driving core. With this structural arrangement, when the driving core performs telescopic movement through the hollow sleeve, it is in close contact with the sealing ring, thereby ensuring the air tightness of the driving core during movement, thereby sealing and isolating the first mounting groove from the inner cavity of the flow pipe, ensuring the normal operation of the internal pressure of the flow pipe, avoiding air and oil leakage at the through-hole structure position, and improving the sealing performance of the product.

[0024] 5. The intelligent flow control transmitter provided by the present invention, wherein the regulating device is a servo motor that drives the driving core to reciprocate along the radial direction of the flow pipe. This servo motor, as an actuator, can timely and accurately receive the command information issued by the intelligent control device to achieve closed-loop control of position, speed and torque, thereby accurately controlling the telescopic movement distance of the driving core in the flow pipe, with convenient control and good operational stability.

[0025] 6. The intelligent flow control transmitter provided by the present invention can first adjust the initial flow of the flow pipeline through a manual calibration valve device during installation and use, thereby adjusting the gas-liquid ratio to an initial state of 1.0-1.2, ensuring that the product can be used normally after installation. If the gas-liquid ratio changes thereafter, the flow rate can be adjusted through the adjustment device to compensate for the gas-liquid ratio deviation. According to the valve port structure formed by the relative arrangement of the adjustment rod and the drive core, the flow rate can be adjusted by adjusting the size of the valve port structure. In this way, the valve port structure can be adjusted by manually twisting the adjustment rod, or by automatically controlling the drive core. It has multiple operation modes and is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1A schematic diagram of the three-dimensional structure of the intelligent flow control transmitter provided by the invention;

[0028] Figure 2 A schematic diagram of the cross-sectional structure of the invented intelligent flow control transmitter;

[0029] Figure 3 A schematic diagram of the structure of the regulating device and the manual calibration valve device of the invention;

[0030] Figure 4 A schematic diagram of the bottom cross-sectional structure of the invented intelligent flow control transmitter;

[0031] Figure 5 A schematic diagram of the mounting structure of the adjusting device of the invention on the housing;

[0032] Explanation of the reference numerals: 1 - housing, 11 - first mounting groove, 12 - second mounting groove, 13 - through-hole structure, 14 - annular step, 2 - flow detection device, 21 - vortex generator, 22 - flow sensor, 23 - sensing end, 3 - adjusting device, 31 - driving core, 4 - flow pipe, 41 - inlet end, 42 - outlet end, 5 - sealing structure, 51 - hollow sleeve, 52 - sealing ring, 6 - manual calibration valve device, 61 - adjusting rod, 62 - valve port structure, 7 - cover plate structure, 8 - circuit board component. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components.

[0036] Example 1

[0037] The present embodiment will be described in detail below with reference to the accompanying drawings:

[0038] This embodiment provides Figure 1 An intelligent flow control transmitter shown in FIG. 5 includes a housing 1 and a flow pipe 4 disposed in the housing 1 for conveying oil and gas, and further includes:

[0039] a flow detection device 2 mounted on the housing 1 and comprising a vortex generator 21 disposed in the flow conduit for forming a vortex, and a flow sensor 22 disposed adjacent to one side of the vortex generator 21, the flow sensor 22 collecting flow information by detecting vortex frequency;

[0040] An adjusting device 3 is mounted on the housing and includes a driving core 31 that can reciprocate and extend through the flow pipe 4 to adjust the lumen size of the flow pipe;

[0041] The intelligent control device is connected to the flow detection device 2 and the regulating device 3 respectively, and is used to receive the flow information and analyze and determine whether the gas-liquid ratio is within the set range. When the gas-liquid ratio exceeds the set range, the intelligent control device controls the driving core 31 to move in the flow pipe 4.

[0042] In the above embodiment, when the flow pipe 4 transports oil and gas, the flow information passing through the flow pipe 4 can be collected in real time through the flow detection device 2, and the flow information is sent to the intelligent control device. The intelligent control device calculates the corresponding gas-liquid ratio based on the flow information analysis, and at the same time determines whether the gas-liquid ratio is within the set range. When the gas-liquid ratio exceeds the set range, the intelligent control device controls the driving core 31 of the regulating device 3 to perform telescopic movement in the flow pipe, thereby adjusting the lumen size of the flow pipe 4 to achieve flow size adjustment. In this way, the flow ratio deviation can be compensated in time, so that the gas-liquid ratio is within the qualified set range. By adopting this technical solution, the moving distance of the driving core 31 in the flow pipe is regulated in real time according to the gas-liquid ratio, so as to achieve the purpose of automatically adjusting the gas-liquid ratio. The detection sensitivity is high, the adjustment is convenient, accurate and reliable, and it is ensured that the gas-liquid ratio of oil and gas recovered at the gas station meets national requirements, ensuring that each refueling is qualified and the operation is safe and reliable.

[0043] The following combination Figure 2 -3. Describe in detail the specific setting method of the adjustment device:

[0044] The housing 1 is provided with a first mounting groove 11 suitable for mounting the regulating device 3. The first mounting groove 11 has a through-hole structure 13 radially arranged along the flow pipe 4 to connect with the flow pipe 4. The driving core 31 penetrates into the flow pipe through the through-hole structure 13. With this structural arrangement, the driving core extends into the flow pipe through the through-hole structure, so that the diameter of the tube cavity of the flow pipe 4 is adjusted when the driving core 31 performs telescopic movement in the flow pipe 4, so that the flow rate of gasoline transported by the flow pipe 4 also changes accordingly to meet the set requirements of the gas-liquid ratio. The adjustment is convenient and the operation is stable and reliable.

[0045] In order to ensure the installation sealing of the driving core 31, a sealing structure 5 is provided between the driving core 31 and the through-hole structure 13. The sealing structure includes a hollow sleeve 51 arranged in the through-hole structure 13, and a sealing ring 52 sealingly installed between the hollow sleeve 51 and the driving core. With this structural arrangement, when the driving core performs telescopic movement through the hollow sleeve 51, it is in close contact with the sealing ring, thereby ensuring the sealing of the driving core 31 during movement, thereby sealing and isolating the first installation groove 11 from the inner cavity of the flow pipe 4, ensuring the normal operation of the internal pressure of the flow pipe, avoiding air leakage and oil leakage at the position of the through-hole structure 13, and improving the sealing performance of the product.

[0046] like Figure 3 As shown, an annular step 14 is provided in one end of the through-hole structure 13 facing the flow pipe 4, and one end of the hollow sleeve 51 abuts against the annular step 14 and forms a sealing groove suitable for accommodating the sealing ring 52 between the annular step 14, thereby restricting the sealing ring 52 to be installed in the sealing groove, preventing the sealing ring 52 from moving when squeezed, and ensuring the installation stability of the sealing ring 52.

[0047] As a preferred embodiment, the adjusting device 3 is a servo motor, which drives the driving core 31 to reciprocate along the radial direction of the flow pipe 4. Specifically, the driving core 31 is linked to the driving shaft of the servo motor, or is the driving shaft of the servo motor. This servo motor, as an actuator, can timely and accurately receive the command information issued by the intelligent control device to achieve closed-loop control of position, speed and torque, thereby accurately controlling the telescopic movement distance of the driving core 31 in the flow pipe, with convenient control and good operational stability.

[0048] The intelligent flow control transmitter provided in this embodiment also includes a manual calibration valve device 6 that is inserted into the flow pipe 4. When the product is installed and used, the initial flow of the flow pipe can be adjusted by the manual calibration valve device 6, so as to adjust the gas-liquid ratio to an initial state of 1.0-1.2, ensuring that the product can be used normally after installation. If the gas-liquid ratio changes thereafter, the flow rate can be adjusted by the adjustment device to compensate for the gas-liquid ratio deviation. As a specific structural setting, the manual calibration valve device 6 includes an adjustment rod 61 that is telescopic along the radial direction of the flow pipe and is arranged opposite to the drive core. The adjustment rod 61 is arranged opposite to the drive core 31 and forms an adjustable valve port structure 62. The flow rate is adjusted by adjusting the size of the valve port structure. The adjustment rod 61 is movably inserted into the flow pipe 4 through a threaded structure, and approaches or moves away from the drive core during its movement. Through the above-mentioned structural setting, the valve mouth structure can be manually adjusted by manually twisting the adjusting rod 61, and the valve mouth structure can be automatically adjusted by automatically controlling the driving core 31. It has multiple operating modes, can meet the user's various usage needs, and has good practicality.

[0049] The following combination Figure 2 and Figure 4 The specific setting method of the flow detection device is described in detail:

[0050] The vortex generator 21 has a polygonal prism structure and is positioned near the inlet 41 of the flow conduit 4. The drive core 31 is positioned near the outlet 42 of the flow conduit 4. This allows the oil and gas entering from the inlet to be vortexed by the vortex generator 21 before being discharged from the outlet. The flow detection device of this embodiment is preferably a vortex flowmeter.

[0051] In this embodiment, if Figure 5 As shown, the housing 6 is further provided with a second mounting groove 12 suitable for mounting the flow sensor 22. The flow sensor 22 has a sensing end 23 that penetrates into the flow pipe 4. The sensing end 23 is a sheet-like structure and is adjacently arranged on the side of the vortex generator 21 facing away from the inlet end 41. The vortex generated by the vortex generator 21 will directly impact the sensing end, so that the sensing end 23 can better detect the vortex frequency to obtain flow information, thereby transmitting the corresponding flow information to the intelligent control device through the flow sensor 22.

[0052] As a preferred embodiment, the intelligent control device includes a circuit board component 8 installed in the second mounting slot 12 and connected to the flow sensor 22, and a central controller connected to the circuit board component 8 and the servo motor by wire or wireless. The circuit board component 8 is used to receive the flow information and send it to the central controller. The central controller can be an intelligent monitoring system arranged outside the shell, and the servo motor is driven by the central controller. In this embodiment, the central controller has the function of data information processing and monitoring. It is used as the core to centrally control other devices through protocols or lines. For example, the central controller will control the action of the drive core according to the gas-liquid ratio, and can also issue an alarm reminder. Obviously, the central controller transmits information with computers or mobile phones and other communication equipment through the Internet, thereby achieving the purpose of alarm reminder. We will not elaborate on them one by one here.

[0053] Combine Figure 2 and Figure 5 As shown, the second mounting groove 12 and the first mounting groove 11 are arranged on the top of the shell 1, and a cover structure 7 is installed on the shell 1 to seal and cover the second mounting groove 12 and the first mounting groove 11. A sealing gasket is provided between the cover structure 7 and the shell to ensure the installation sealing of the first mounting groove 11 and the second mounting groove 12, thereby improving the product protection level.

[0054] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An intelligent flow control transmitter, comprising a housing (1) and a flow pipe (4) arranged in the housing (1) for conveying oil and gas, characterized in that: Also includes: A flow detection device (2) is installed in the housing (1), comprising a vortex generator (21) disposed in the flow pipe and used to form a vortex, and a flow sensor (22) disposed adjacent to one side of the vortex generator (21), wherein the flow sensor (22) collects flow information by detecting the vortex frequency; An adjusting device (3) is mounted on the housing and includes a driving core (31) that can reciprocate and extend through the flow pipe (4) to adjust the lumen size of the flow pipe; an intelligent control device, connected to the flow detection device (2) and the regulating device (3), respectively, for receiving the flow information and analyzing and determining whether the gas-liquid ratio is within a set range, and controlling the driving core (31) to move within the flow pipe when the gas-liquid ratio exceeds the set range; The regulating device (3) is a servo motor, and the servo motor drives the driving core (31) to reciprocate along the radial direction of the flow pipe (4); The invention also includes a manual calibration valve device (6) passing through the flow pipe (4), wherein the manual calibration valve device (6) includes an adjustment rod (61) that is retractable in the radial direction of the flow pipe and is arranged opposite to the driving core, and the adjustment rod (61) is arranged opposite to the driving core (31) to form an adjustable valve port structure (62).

2. The intelligent flow control transmitter according to claim 1, characterized in that: A first mounting groove (11) suitable for mounting the regulating device (3) is provided in the housing (1), the first mounting groove (11) having a through-hole structure (13) radially arranged along the flow pipe (4) for communicating with the flow pipe (4), and the driving core (31) penetrates into the flow pipe through the through-hole structure (13).

3. The intelligent flow control transmitter according to claim 2, characterized in that: A sealing structure (5) is provided between the driving core (31) and the through-hole structure (13), and the sealing structure comprises a hollow sleeve (51) provided in the through-hole structure (13), and a sealing ring (52) sealingly fitted between the hollow sleeve (51) and the driving core.

4. The intelligent flow control transmitter according to claim 3, characterized in that: An annular step (14) is provided in one end of the through hole structure (13) facing the flow pipe (4); one end of the hollow sleeve (51) abuts against the annular step (14) and forms a sealing groove suitable for accommodating the sealing ring (52) between the hollow sleeve (51) and the annular step (14).

5. The intelligent flow control transmitter according to claim 2, characterized in that: The vortex generator (21) is a polygonal column structure, and the vortex generator (21) is arranged near the inlet end (41) of the flow pipe (4); the driving core (31) is arranged near the outlet end (42) of the flow pipe (4).

6. The intelligent flow control transmitter according to claim 5, characterized in that: The housing (1) is further provided with a second mounting groove (12) suitable for mounting the flow sensor (22). The flow sensor (22) has a sensing end (23) that penetrates into the flow pipe (4). The sensing end (23) is a sheet-like structure and is adjacently arranged on a side of the vortex generator (21) facing away from the inlet end (41).

7. The intelligent flow control transmitter according to claim 6, characterized in that: The intelligent control device comprises a circuit board component (8) installed in the second installation slot (12) and connected to the flow sensor (22), and a central controller connected to the circuit board component (8) and the servo motor respectively by wire or wireless, wherein the circuit board component (8) is used to receive the flow information and send it to the central controller, and the servo motor is driven by the central controller.

8. An intelligent flow control transmitter according to claim 6 or 7, characterized in that: The second mounting groove (12) and the first mounting groove (11) are arranged on the top of the shell (1), and a cover plate structure (7) is installed on the shell (1) to seal and cover the second mounting groove (12) and the first mounting groove (11).

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