Intelligent industrial valve internal leakage monitoring method

Abstract

The present invention discloses a method for monitoring internal leakage of an intelligent industrial valve, including a valve main body shell, an inlet channel and an outlet channel, wherein a one-way valve structure is movably provided in the inlet channel; the one-way valve structure includes a first convex ring, a second convex ring and a one-way valve core, the first convex ring is provided with a first through hole, the circumference of the one-way valve core is provided with a third convex ring between the first convex ring and the second convex ring, the third convex ring is provided with a second through hole, the second through hole is not connected to the first through hole when the first convex ring and the third convex ring are in contact; the second convex ring is provided with a third through hole; the one-way valve core is provided with an internal leakage detection structure. The system structure of the present invention is simple and data acquisition is convenient. By collecting the flow velocity difference between the first flow velocity detection sensor and the second flow velocity sensor to the controller, the controller can dynamically analyze the flow velocity difference to determine whether there is internal leakage, or directly detect the speed change of the impeller rotation through the speed detection device on the impeller to determine the meat leakage.

Description

Technical Field

[0001] The present invention relates to the field of industrial data collection and early warning, and specifically to an intelligent industrial valve internal leakage monitoring method. Background Art

[0002] Industrial valves are essential accessories for controlling the flow of media in industrial pipelines. They can be used to control the flow of various fluids, including air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. Composed of a body, a stem opening and closing mechanism, and a bonnet, valves function to shut off or open the flow of fluids within a pipeline, regulating the flow rate and velocity within the pipeline, creating a significant pressure drop after the fluid passes through the valve, and maintaining a constant pressure. Therefore, in industrial production, a large number of industrial valves are used in a system to coordinate the operation of the entire system. For example, in the petrochemical industry, such as refineries and chemical plants, there are many harsh working conditions and environments. The working media include high temperature, high pressure, high solid content, multiphase media, as well as many hazardous gases, volatile gases, and flammable and explosive gas media. Not only can valves fail, but once a pipeline or valve leaks, especially the leakage of hazardous liquids, it may directly affect the life safety of workers and even cause other immeasurable harm and consequences. Chinese invention patent application (application number: 201610427351.X) discloses a smart water meter with a water leakage monitoring function. The sensor detects the length of time the impeller rotates to determine whether there is a water leak. However, if water is used for a long time, and the duration exceeds the set time of the controller, it will also be judged as a water leak, resulting in a decrease in the accuracy of the judgment. Therefore, it is very important to obtain a smart industrial valve internal leakage monitoring method that overcomes the above-mentioned shortcomings. Summary of the Invention

[0003] To solve at least one of the above technical problems, the present invention provides an intelligent industrial valve internal leakage monitoring method, comprising a valve body housing, a water inlet channel and a water outlet channel being provided on both sides of the valve body housing, and a one-way valve structure being movably provided in the water inlet channel;

[0004] The one-way valve structure includes a first protruding ring, a second protruding ring, and a one-way valve core fixed to the inner wall of the water inlet channel, wherein the first protruding ring is provided with a first through hole, a third protruding ring is provided on the circumference of the one-way valve core between the first and second protruding rings, and a second through hole is provided on the third protruding ring. The second through hole is not connected to the first through hole when the first and third protruding rings are in contact; the second protruding ring is provided with a third through hole;

[0005] The one-way valve core is provided with an internal leakage detection structure, which includes a fourth through hole provided on the one-way valve core, a leak detection valve core arranged in the fourth through hole, the bottom of the fourth through hole is connected to a small hole via a second inclined surface, the end of the one-way valve core is provided with a tapered fin, the inclination of the tapered fin is greater than the inclination of the second inclined surface, the tapered fin is provided with a fifth through hole, the fifth through hole and the fourth through hole are not connected when the tapered fin and the second inclined surface are in contact; a second spring is arranged between the leak detection valve core and the inner wall of the fourth through hole;

[0006] The water inlet channel is equipped with a first flow velocity detection sensor, the small hole or the water outlet channel is equipped with a second flow velocity detection sensor, and an external controller is included. The first flow velocity detection sensor and the second flow velocity detection sensor detect flow velocity information and transmit it to the controller;

[0007] It also includes the following steps: when the one-way valve structure is working normally, the flow rates detected by the first flow rate detection sensor and the second flow rate sensor located at the water inlet channel and the water outlet channel remain unchanged, and there is no pressure difference on both sides of the water inlet channel; when there is internal leakage in the valve, the one-way valve is closed when no water is used, and the internal leakage causes the water pressure in the valve body shell to become low, and water can pass through the small hole to change the flow rate detected by the first flow rate detection sensor and the second flow rate sensor.

[0008] Through the above technical solution, the present invention configures a leak detection valve core on the valve core of the one-way valve, and when there is internal leakage in the valve, the different pressure differences between the front and rear sides will cause the leak detection valve core to open, and the information sensed by the first flow rate detection sensor and the second flow rate sensor will change. The controller then monitors through the above information, that is, an alarm or a wireless transmitter can also be configured to send the information to the administrator's mobile terminal.

[0009] As a preferred embodiment of the above, a fourth inclined surface and a fifth inclined surface are provided at the small hole, and the inclination of the fifth inclined surface is smaller than the inclination of the fourth inclined surface.

[0010] Through the above technical solution, the inclination of the fifth inclined surface is smaller than the inclination of the fourth inclined surface, so as to achieve the purpose of amplifying the rotation speed of the impeller.

[0011] As a preferred embodiment of the above, a first inclined surface that cooperates with each other is provided between the bottom of the first convex ring and the top of the third convex ring.

[0012] Through the above technical solution, a first inclined surface that cooperates with each other is provided between the bottom of the first convex ring and the top of the third convex ring, which can achieve sealing between the two when cut off and prevent liquid leakage.

[0013] As a preferred embodiment of the above, the first through holes are arranged obliquely, and there are a plurality of the first through holes, all of which are obliquely toward the second through holes.

[0014] Through the above technical solution, the first through hole is set obliquely, and there are several first through holes, all of which are oblique to the second through hole, which can increase the flow rate and facilitate its passage through the second through hole.

[0015] As a preferred embodiment of the above, an impeller is rotatably connected to the valve body shell, and the fourth channel is located at the quarter to eighth divisions of the impeller blades. A speed detection device is fixed on the impeller, and the speed detection device is electrically connected to the input end of the controller.

[0016] Through the above technical solution, the fourth channel is located at the quarter to eighth part of the impeller blade and can be infinitely close to its circumference, which can amplify the impeller rotation speed and improve the conversion difference of the rotation speed detection device.

[0017] Preferably, an auxiliary groove cooperating with the fourth through hole is provided on the blade of the impeller, and the auxiliary groove includes a first oblique groove connected to each other and a first arc groove arranged at the bottom of the first oblique groove.

[0018] Through the above technical solution, the setting of the auxiliary groove can realize that after the water flows out of the small hole, it hits the auxiliary groove on the blade of the impeller to help the rotation of the impeller.

[0019] Preferably, a sixth inclined surface cooperating with the blades of the impeller is provided on one side of the valve body shell.

[0020] Through the above technical solution, the sixth inclined surface enables the water flow to be closer to the tangent of the impeller, which can achieve the effect of amplifying the impeller speed.

[0021] As a preferred embodiment of the above, a first groove is formed on the circumferential side of the third convex ring, a second groove is formed on the bottom of the circumferential side of the first convex ring, and a first spring is further provided, and the first spring is placed between the first groove and the second groove.

[0022] Through the above technical solution, the first spring and the second spring play a reset role.

[0023] Compared with the prior art, the advantages of the present invention are: the system structure of the present invention is simple, and data collection is convenient. By collecting the flow rate difference between the first flow rate detection sensor and the second flow rate sensor to the controller, the controller can dynamically analyze the flow rate difference to determine whether there is internal leakage, or directly detect the speed change of the impeller rotation through the speed detection device on the impeller to determine internal leakage of meat. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the intelligent industrial valve internal leakage monitoring device of the present invention. Figure 1 ;

[0025] Figure 2This is a schematic diagram of the structure of the intelligent industrial valve internal leakage monitoring device of the present invention. Figure 2 ;

[0026] Figure 3 for Figure 1 A magnified view of point A;

[0027] Figure 4 for Figure 1 Enlarged view of point B;

[0028] Reference numerals: 1-valve body housing; 101-water inlet channel; 102-water outlet channel;

[0029] 200 - first convex ring; 2001 - first through hole; 201 - second convex ring; 2011 - third through hole; 202 - one-way valve core; 2021 - third convex ring; 2022 - second through hole;

[0030] 2023 - fourth through hole; 2024 - leak detection valve core; 2025 - second inclined surface; 2026 - small hole; 2027 - tapered fin; 20271 - fifth through hole;

[0031] 206- fourth inclined surface; 207- fifth inclined surface;

[0032] 301-first inclined surface;

[0033] 401- impeller; 402- auxiliary groove; 403- first inclined groove; 404- first arc groove;

[0034] 501- second spring; 502- first spring. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention and thus more clearly define the scope of protection claimed in the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific embodiments of the present invention, which are only part of the embodiments of the present invention. The specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not necessarily and directly limit the scope of implementation of the present invention.

[0036] Referring to the accompanying drawings, the present invention adopts the following technical solution: a method for monitoring internal leakage of an intelligent industrial valve, comprising a valve body housing 1, with a water inlet channel 101 and a water outlet channel 102 provided on both sides of the valve body housing 1, and a one-way valve structure movably provided in the water inlet channel 101;

[0037] The one-way valve structure includes a first protruding ring 200, a second protruding ring 201, and a one-way valve core 202 fixed to the inner wall of the water inlet channel 101. The first protruding ring 200 is provided with a first through hole 2001. A third protruding ring 2021 is provided on the circumference of the one-way valve core 202, which is located between the first protruding ring 200 and the second protruding ring 201. The third protruding ring 2021 is provided with a second through hole 2022. The second through hole 2022 is not connected to the first through hole 2001 when the first protruding ring 200 and the third protruding ring 2021 are in contact. The second protruding ring 201 is provided with a third through hole 2011.

[0038] The one-way valve core 202 is provided with an internal leakage detection structure, which includes a fourth through hole 2023 provided on the one-way valve core 202, and a leak detection valve core 2024 provided in the fourth through hole 2023. The bottom of the fourth through hole 2023 is connected to a small hole 2026 via a second inclined surface 2025. The end of the one-way valve core 202 is provided with a tapered fin 2027, the inclination of the tapered fin 2027 is greater than the inclination of the second inclined surface 2025, and the tapered fin 2027 is provided with a fifth through hole 2028. The fifth through hole 2028 and the fourth through hole 2023 are not connected when the tapered fin 2027 and the second inclined surface 2025 are in contact. A second spring 501 is provided between the leak detection valve core 2024 and the inner wall of the fourth through hole 2023.

[0039] The water inlet channel 101 is provided with a first flow velocity detection sensor, the small hole 2026 or the water outlet channel 102 is provided with a second flow velocity detection sensor, and an external controller is further included. The first flow velocity detection sensor and the second flow velocity detection sensor detect flow velocity information and transmit it to the controller;

[0040] It also includes the following steps: when the one-way valve structure is working normally, the flow rates detected by the first flow rate detection sensor and the second flow rate sensor located at the water inlet channel 101 and the water outlet channel 102 remain unchanged, and there is no pressure difference on both sides of the water inlet channel 101; when there is internal leakage in the valve, the one-way valve is closed when no water is used, and the internal leakage causes the water pressure in the valve main body shell 1 to become low, and water can pass through the small hole 2026 to change the flow rate detected by the first flow rate detection sensor and the second flow rate sensor.

[0041] Through the above technical solution, the present invention configures a leak detection valve core 2024 on the valve core of the one-way valve, and when the valve leaks, the different pressure differences between the front and rear sides will cause the leak detection valve core 2024 to open, and the information sensed by the first flow rate detection sensor and the second flow rate sensor will change. The controller then monitors through the above information, that is, an alarm or a wireless transmitter can also be configured to send the information to the administrator's mobile terminal.

[0042] As a preferred embodiment of the above, a fourth inclined surface 206 and a fifth inclined surface 207 are provided at the small hole 2026 , and the inclination of the fifth inclined surface 207 is smaller than the inclination of the fourth inclined surface 206 .

[0043] Through the above technical solution, the inclination of the fifth inclined surface 207 is smaller than the inclination of the fourth inclined surface 206 , so as to achieve the purpose of amplifying the rotation speed of the impeller 401 .

[0044] As a preferred embodiment of the above, a first inclined surface 301 that cooperates with each other is provided between the bottom of the first convex ring 200 and the top of the third convex ring 2021 .

[0045] Through the above technical solution, a first inclined surface 301 that cooperates with each other is provided between the bottom of the first convex ring 200 and the top of the third convex ring 2021, which can achieve sealing between the two when cut off and prevent liquid leakage.

[0046] As a preferred embodiment, the first through hole 2001 is arranged obliquely, and a plurality of the first through holes 2001 are provided, all obliquely toward the second through hole 2022 .

[0047] Through the above technical solution, the first through hole 2001 is set obliquely, and there are several of them, all obliquely facing the second through hole 2022, which can increase the flow rate and facilitate its passage through the second through hole 2022.

[0048] As a preferred embodiment of the above, an impeller 401 is rotatably connected to the valve body housing 1, and the fourth channel is located at the quarter to eighth divisions of the blades of the impeller 401. A speed detection device is fixed on the impeller 401, and the speed detection device is electrically connected to the input end of the controller.

[0049] Through the above technical solution, the fourth channel is located at the quarter to eighth division of the impeller 401 blade and can be infinitely close to its circumference, which can amplify the rotation speed of the impeller 401 and improve the conversion difference of the rotation speed detection device.

[0050] Preferably, an auxiliary groove 402 cooperating with the fourth through hole 2023 is formed on the blade of the impeller 401 , and the auxiliary groove 402 includes a first oblique groove 403 connected to each other and a first arc groove 404 arranged at the bottom of the first oblique groove 403 .

[0051] Through the above technical solution, the setting of the auxiliary groove 402 can achieve that after the water flows out of the small hole 2026, it will hit the auxiliary groove 402 on the blade of the impeller 401 to help the rotation of the impeller 401.

[0052] Preferably, a sixth inclined surface cooperating with the blades of the impeller 401 is provided on one side of the valve body housing 1 .

[0053] Through the above technical solution, the sixth inclined surface enables the water flow to be closer to the tangent of the impeller 401, which can achieve the effect of amplifying the rotation speed of the impeller 401.

[0054] As a preferred embodiment of the above, the third convex ring 2021 is provided with a first groove on its circumference, the first convex ring 200 is provided with a second groove on its circumference bottom, and further includes a first spring 502, which is placed between the first groove and the second groove.

[0055] Through the above technical solution, the first spring 502 and the second spring 501 play a reset role.

[0056] Compared with the prior art, the advantages of the present invention are: the system structure of the present invention is simple, and data collection is convenient. By collecting the flow rate difference between the first flow rate detection sensor and the second flow rate sensor to the controller, the controller can dynamically analyze the flow rate difference to determine whether there is internal leakage, or directly detect the speed change of the impeller 401 through the speed detection device on the impeller 401 to determine the internal leakage of meat.

[0057] When the present invention is put into use, during normal operation, water flows between the water outlet channel 102 and the water inlet channel, and the pressure difference is normal. At this time, the leak-picking valve core blocks the fourth through hole 2023 due to the action of the spring force. However, when the valve leaks internally, the pressures between the two are different. The leak-picking valve core is affected by its own gravity and water flow pressure, and water flows out from the fourth through hole 2023 to the small hole 2026. The first flow rate detection sensor and the second flow rate sensor or directly through the speed detection device on the impeller 401 to detect the speed change of the impeller 401 rotation to determine the internal leakage of meat.

[0058] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0059] In the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are intended solely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0060] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A method for monitoring internal leakage of intelligent industrial valves, characterized by: It comprises a valve main body shell (1), wherein a water inlet channel (101) and a water outlet channel (102) are provided on both sides of the valve main body shell (1), and a one-way valve structure is movably provided in the water inlet channel (101); The one-way valve structure comprises a first convex ring (200), a second convex ring (201) and a one-way valve core (202) fixed on the inner wall of the water inlet channel (101); a first through hole (2001) is provided on the first convex ring (200); a third convex ring (2021) is provided on the circumference of the one-way valve core (202) between the first convex ring (200) and the second convex ring (201); a second through hole (2022) is provided on the third convex ring (2021); the second through hole (2022) and the first through hole (2001) are not connected when the first convex ring (200) and the third convex ring (2021) are in contact; and a third through hole (211) is provided on the second convex ring (201); The one-way valve core (202) is provided with an internal leakage detection structure, which includes a fourth through hole (2023) provided on the one-way valve core (202), a leak detection valve core (2024) arranged in the fourth through hole (2023), a small hole (2026) connected to the bottom of the fourth through hole (2023) via a second inclined surface (2025), a conical fin (2027) provided at the end of the one-way valve core (202), and a second through hole (2026) provided at the bottom of the one-way valve core (202). The inclination of the conical fin (2027) is greater than the inclination of the second inclined surface (2025); a fifth through hole (2028) is provided on the conical fin (2027); the fifth through hole (2028) and the fourth through hole (2023) are not connected when the conical fin (2027) and the second inclined surface (2025) are in contact; a second spring (501) is provided between the leak detection valve core (2024) and the inner wall of the fourth through hole (2023); The water inlet channel (101) is provided with a first flow velocity detection sensor, and the small hole (2026) or the water outlet channel (102) is provided with a second flow velocity detection sensor. The system also includes an external controller, wherein the first flow velocity detection sensor and the second flow velocity detection sensor detect flow velocity information and transmit it to the controller. The method further includes the following steps: when the one-way valve structure is operating normally, the flow rates detected by the first flow rate detection sensor and the second flow rate sensor located at the water inlet channel (101) and the water outlet channel (102) remain unchanged, and there is no pressure difference on both sides of the water inlet channel (101); when there is internal leakage in the valve, the one-way valve is closed when no water is used, and the internal leakage causes the water pressure in the valve body housing (1) to decrease, so that water can pass through the small hole (2026) to change the flow rates detected by the first flow rate detection sensor and the second flow rate sensor; An impeller (401) is rotatably connected to the valve body housing (1), and the fourth channel is located at the position where the blades of the impeller (401) are divided into four equal parts to eight equal parts. A speed detection device is fixed on the impeller (401), and the speed detection device is electrically connected to the input end of the controller; an auxiliary groove (402) is provided on the blades of the impeller (401) to cooperate with the fourth through hole (2023), and the auxiliary groove (402) includes a first oblique groove (403) that is interconnected and a first arc groove (404) arranged at the bottom of the first oblique groove (403).

2. The method for monitoring internal leakage of an intelligent industrial valve according to claim 1, characterized in that: A fourth inclined surface (206) and a fifth inclined surface (207) are provided at the small hole (2026), and the inclination of the fifth inclined surface (207) is smaller than the inclination of the fourth inclined surface (206).

3. The method for monitoring internal leakage of an intelligent industrial valve according to claim 1, characterized in that: A first inclined surface (301) that cooperates with each other is provided between the bottom of the first convex ring (200) and the top of the third convex ring (2021).

4. The method for monitoring internal leakage of an intelligent industrial valve according to claim 1, characterized in that: The first through hole (2001) is arranged obliquely, and there are a plurality of them, all obliquely facing the second through hole (2022).

5. The method for monitoring internal leakage of an intelligent industrial valve according to claim 1, characterized in that: A sixth inclined surface is provided on one side of the valve body housing (1) for cooperating with the blades of the impeller (401).

6. The method for monitoring internal leakage of an intelligent industrial valve according to claim 1, characterized in that: The third convex ring (2021) is provided with a first groove on its circumferential side, the first convex ring (200) is provided with a second groove on its circumferential bottom, and further comprises a first spring (502), the first spring (502) being disposed between the first groove and the second groove.

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