High-pressure filter with real-time leakage function

Abstract

The invention discloses a high-pressure filter with a real-time leakage function, and relates to the technical field of filters, the high-pressure filter comprises a connecting shell connected with the two sides of a pipeline, and the connecting shell is internally provided with a multi-layer filtering inner core for filtering; the pressure detection meter is arranged at the joint of the two ends of the connecting shell, and whether the internal pressure of the pipeline is changed or not is detected through the pressure detection meter; and the self-tightening mechanisms are arranged at the two end parts of the connecting shell. The self-tightening mechanism is additionally arranged at the joint of the filter and the pipeline, so that gaps caused by loose connection due to long-time use of the joint of the pipeline can be avoided, the tightness of the joint is ensured, the contact inner ring is rotatably arranged, the leakage phenomenon caused by local excessive wear due to local impact is avoided, and the service life of the filter is prolonged. And meanwhile, multiple inner cores are additionally adopted, so that the service life is effectively prolonged.

Description

Technical Field

[0001] This invention relates to the field of filter technology, and in particular to a high-pressure filter with real-time leakage function. Background Technology

[0002] In some high-pressure medium transmission pipelines, it is necessary to filter the medium in the pipeline. For example, if natural gas contains dust, a high-pressure filter can intercept impurities and prevent wear on downstream pipelines or compressors. The circulating water in the circulating water system (containing corrosion products and biological slime) needs to be purified by a high-pressure filter (pressure 3-8MPa) to prevent condenser tube bundle blockage. In this case, high-pressure filters are selectively installed on the transmission pipeline. However, existing high-pressure filters, due to their need to connect to pipelines, are often connected via flanges, with sealing strips added inside and bolts used for tightening. When the pressure is too high, the flanges are prone to leakage. Existing high-pressure filters cannot perform pressure testing at the connection points around the clock to determine if leakage has occurred. Summary of the Invention

[0003] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The present invention provides a high-pressure filter with real-time leakage function to solve the technical problem that existing high-pressure filters cannot effectively monitor flange connections for loosening in real time, and cannot promptly adjust the tightness when the connection becomes loose.

[0004] The present invention adopts the following technical solution: a high-pressure filter with real-time leakage function, including a connecting shell connected to both sides of a pipeline, wherein a multi-layer filter core for filtration is provided inside the connecting shell, and further comprising; Pressure gauges are installed at both ends of the connecting housing to detect changes in the internal pressure of the pipeline. The self-tightening mechanism is located at both ends of the connecting shell. It determines whether the tightness of the pipe connection has changed and automatically adjusts the tightness based on the detection results.

[0005] Furthermore, the self-tightening mechanism includes a tightness self-adjusting component and a rotating component. The rotating component includes a sealing shell with a hollow structure. An annular elastic plate is provided on the inner side to achieve a sealing effect and simultaneously form a medium flow channel. Connecting frames are provided on both sides of the rotating component, and rotating blades are provided between the connecting frames to drive the annular elastic plate to rotate through the medium flow. The rotating blades are connected to the rotating blades through connecting rods. Contact balls are provided on both sides of the annular elastic plate to contact the inner wall of the sealing shell to achieve a rotation effect. A ball groove is provided on the inner side of the annular elastic plate.

[0006] Furthermore, the middle part of the sealing shell is made of a hard material, and the two sides are made of an elastic material to give it the ability to deform and improve the sealing effect. The inner side of the sealing shell is provided with a mating groove.

[0007] Furthermore, the self-adjusting assembly includes a connecting ball disposed in a ball groove, a multi-arm crank connected to the connecting ball via a rotating shaft, the end of the multi-arm crank being inserted into a mounting frame, a contact sensor being disposed at a corresponding position of the multi-arm crank to determine the position of the multi-arm connection end point, the mounting frame being located at and connected to the rigid material of the sealed housing, and several telescopic rods being externally connected to the mounting frame, each telescopic rod being movably provided with a conical block, the conical block contacting the mating groove.

[0008] Furthermore, in the initial state, there is a gap between the bottom of the conical block and the contacting ball.

[0009] Furthermore, the multi-layer filter core is made of four layers of material.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, the self-tightening mechanism ensures that when the connecting shell is bolted to the pipeline, if the bolts loosen due to thermal expansion and contraction or vibration caused by the flow of the medium, resulting in a decrease in tightness, the mechanism can automatically detect the connection tightness. If the tightness is too low, the self-tightening mechanism will automatically adjust the gap difference between the sealing shell and the inner wall of the connecting pipeline to ensure a tight fit, thereby guaranteeing the sealing effect (eliminating the need for regular manual inspection of the connection to check for looseness, reducing the number of maintenance operations). Meanwhile, under certain specific operating conditions, the flow of media may be frequently started or stopped, which may cause water hammer at the connection. In order to avoid the water hammer effect from impacting the connection, the internal rotating component will rotate continuously under the action of media flow, which will change the impact point position of the internal annular elastic plate to avoid local impact, damage, and affect the subsequent self-tightening effect. Secondly, pressure gauges are added to both sides during use. If leakage still occurs at the connection when the self-tightening mechanism is adjusted to its maximum state, the pressure gauges will detect this, and maintenance personnel can then be dispatched for repair. Furthermore, during use, the internal filter core of this high-pressure filter employs a four-layer filtration system: from the outside in, a coarse filter screen, a large sintered filter screen, a fine filter screen, and a small sintered filter screen. These four layers fit together tightly, enhancing the filter screen's resistance to liquid flow impact and pressure. Even with long-term use, the sintered filter screen is not prone to deformation or damage. In summary, by adding a self-tightening mechanism to the connection between the filter and the pipeline, gaps can be prevented from forming due to loosening of the connection over a long period of use, ensuring the tightness of the connection. Secondly, the inner contact ring is designed to rotate, avoiding localized impacts that could cause excessive wear and leakage, thus reducing the frequency of maintenance. At the same time, the use of multiple inner cores effectively improves the service life. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the main structure of the filter of the present invention; Figure 2 This is a schematic cross-sectional view of the filter body of the present invention; Figure 3 This is a schematic diagram of the main structure of the self-tightening mechanism of the present invention; Figure 4 This is a partial cross-sectional view of the self-tightening mechanism of the present invention; Figure 5 This is a partial cross-sectional structural diagram of the self-tightening mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0013] Figure label: 11. Connecting housing; 12. Multi-layer filter core; 13. Pressure gauge; 21. Self-tightening mechanism; 22. Sealed housing; 23. Rotating blade; 24. Connecting frame; 25. Connecting rod; 26. Annular elastic plate; 27. Ball groove; 28. Contact ball; 29. ​​Conical block; 20. Mating groove; 20. Telescopic rod; 210. Contact sensor; 211. Mounting bracket; 212. Multi-arm crank; 2131. Connecting ball. Detailed Implementation

[0014] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0015] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0016] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The following is combined Figures 1 to 6 As shown, this embodiment of the invention provides a high-pressure filter with real-time leakage function, including a connecting housing 1 connected to both sides of a pipeline, wherein the connecting housing 1 is provided with a multi-layer filter core 11 for filtration, and also includes; Pressure gauge 12 is installed at both ends of the connecting housing 1. Pressure gauge 12 is used to detect whether the internal pressure of the pipeline changes. Self-tightening mechanism 2 is installed at both ends of the connecting housing 1. The self-tightening mechanism 2 determines whether the tightness of the pipe connection has changed and automatically adjusts the tightness based on the detection results.

[0020] Specifically, the self-tightening mechanism 2 includes a tightness self-adjusting component and a rotating component. The rotating component includes a sealing shell 21, which has a hollow structure. An annular elastic plate 25 is provided on its inner side to achieve a sealing effect and simultaneously form a medium flow channel. Connecting frames 23 are provided on both sides of the rotating component. Rotating blades 22, which drive the annular elastic plate 25 to rotate through the medium flow, are arranged between the connecting frames 23. The rotating blades 22 are connected to the rotating components via connecting rods 24. Contact balls 252 are provided on both sides of the annular elastic plate 25 to contact the inner wall of the sealing shell 21, enabling its rotation. A ball groove 251 is provided on the inner side of the annular elastic plate 25. It should be noted that to ensure the connection stability of the connecting balls 2111 and to drive the connecting balls 2111 to move synchronously through the ball groove 251, the area of ​​the ball groove 251 covering the connecting balls 2111 must be greater than 50%.

[0021] Specifically, the middle part of the sealing shell 21 is made of hard material, and the two sides are made of elastic material to give it the ability to deform and improve the sealing effect. The inner side of the sealing shell 21 is provided with a mating groove 27.

[0022] It is worth noting that when the sealing shell 21 is cut open, the cross-section is U-shaped. The two sides and the middle connection are made of elastic material, i.e., the U-shaped connection transition section (the purpose of the elastic setting is to allow the two sides to change position as a whole). Since the inner walls on both sides also need to be connected to the contact ball 252, the inner walls extend outwards to a certain thickness using a rigid material (for example, if the side wall is divided into 5cm sections, the inner wall 1cm is made of rigid material, while the remaining 4cm is made of elastic material, so that the two side walls have a compression deformation effect. At the beginning of installation, the sealing shell 2 can be pressurized to deform it and ensure the sealing effect, similar to an elastic sealing ring). At the same time, in order to facilitate the deflection of the contact ball 252, an annular groove can be opened at the connection between the contact ball 252 and the inner wall, so that part of the contact ball 252 is located in the annular groove and has a guiding effect.

[0023] Specifically, the self-adjusting assembly includes a connecting ball 2111 disposed in a ball groove 251. A multi-arm crank 211 is connected to the connecting ball 2111 via a rotating shaft. The end of the multi-arm crank 211 is inserted into a mounting bracket 210. A contact sensor 29 is provided at a corresponding position of the multi-arm crank 211 to determine the position of the multi-arm connection end. The mounting bracket 210 is located at and connected to the rigid material of the sealed housing. Several telescopic rods 28 are connected to the mounting bracket 210. A conical block 26 is movably disposed on each telescopic rod 28, and the conical block 26 contacts the mating groove 27.

[0024] During operation, the multi-arm curved rod 211 ensures that it can slide up and down within the mounting bracket 210.

[0025] Specifically, in the initial state, there is a gap between the bottom of the conical block 26 and the contact ball 252.

[0026] During use, the adjustment of the side wall is achieved by moving the conical block 26. In order to ensure that the conical block 26 can move towards the center, there is a gap between each conical block 26. That is, a ring is formed by several conical blocks 26 with a certain gap between them, so as to compress the two side walls of the sealing shell 21 in the same proportion and ensure its sealing effect.

[0027] Specifically, the multi-layer filter core 11 is made of four layers of material.

[0028] During operation, the internal filter core of this high-pressure filter employs a four-layer filtration system, consisting of a coarse filter screen, a large sintered filter screen, a fine filter screen, and a small sintered filter screen from the outside in. These four layers fit together tightly, enhancing the filter screen's resistance to liquid flow impact and pressure. Even with long-term use, the sintered filter screen is not prone to deformation or damage.

[0029] Working principle: During use, the filter connecting housing 1 is connected to the pipe flange through a flange, and then fastened using a fastening mechanism not limited to bolts. Before locking, the self-tightening mechanism 2 is placed between the connecting housing 1 flange and the pipe flange (at this time, in order to ensure that the self-tightening mechanism 2 corresponds to the opening position of the connecting housing 1, the position of the self-tightening mechanism 2 can be locked by adhesive or by opening bolt holes before connection). As the flanges are tightened, the gap between the two flanges gradually decreases, which compresses the sealing housing 21 of the self-tightening mechanism 2. Since the two ends of the annular elastic plate 25 are connected to the sealing housing 21, when the sealing housing 21 is compressed and the gap decreases, the annular elastic plate 25 will bulge outward, and the multi-arm crank 211 connected to the annular elastic plate 25 will be compressed (initially, the multi-arm crank 211 and the through groove of the mounting bracket 210 are inclined). When the multi-arm crank 211 moves with the annular elastic plate 25, the gap between the multi-arm crank 211 and the mounting bracket 210 decreases. Therefore, the multi-arm crank 211 moves upward within the mounting bracket 210 (the vertical movement here is discussed relative to Figure 5). When the multi-arm crank 211 touches the set high point of the contact sensor 29, a warning is issued and the tightening stops (this serves as a self-detection of tightness to ensure the tightness of the connection during the connection process). During use, pressure gauges 12 are installed on both sides of the connecting housing 1. When a leak occurs in the pipeline, the pressure gauges 12 can detect the pressure change, thereby determining whether a leak has occurred. Furthermore, these pressure gauges 12 can be network-connected, facilitating remote monitoring. The multi-layered filter core 11 inside the connecting housing 1 consists of a coarse filter, a large sintered filter, a fine filter, and a small sintered filter, which can fit together tightly. This enhances the filter's resistance to liquid flow impact and pressure, and the sintered filter is not easily deformed or damaged even after long-term use. With continuous use, the vibration of the medium flow or other external factors (such as thermal expansion and contraction, or vibration of external equipment) may cause the bolts to loosen. This increases the gap between the flanges connecting housing 1. As the gap increases, the compressed sealing shell 21 gradually returns to its original position. This, in turn, causes the annular elastic plate 25 to gradually return to its original position, which in turn drives the multi-arm crank 211 to gradually return to its original position. This causes the height of the end of the multi-arm crank 211 to decrease. The contact sensor 29 detects the position fluctuation and sends a signal, causing the internal telescopic rod 28 to descend by a predetermined value. Under electric drive, its movable section moves the conical block 26 downwards. After the conical block 26 moves downwards... The sealing shell 21 is compressed by the mating groove 27, causing it to expand outward (the sealing shell 21 is made of sealing ring material, which gives it the ability to deform), thereby improving the tightness between the sealing shell 21 and the flange contact surface. At this time, the contact detector mainly detects the change in the height of the end point of the multi-arm curved rod 211. Each change indicates a loosening, which requires the movable section of the telescopic rod 28 to change by a certain amount (at this time, in order to improve the detection accuracy, a pressure detector can be added to the sealing shell 21 to determine the contact force. When the pressure detector detects a certain compressive force, the telescopic rod 28 stops moving. At this time, the movement of the telescopic rod 28 becomes a movable adjustment, not a fixed amount). Meanwhile, during use, some pipelines need to be opened and closed frequently. In order to avoid continuous impact on a single point of the annular elastic plate 25, the annular elastic plate 25 is connected to the turbine blade, so that the annular elastic plate 25 can be rotated during the flow of the medium, thus avoiding continuous impact on a single point and extending its service life.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-pressure filter with real-time leakage function, comprising a connecting housing 1 connected to both sides of a pipeline, wherein the connecting housing 1 contains a multi-layer filter core 11 for filtration, characterized in that, Also includes; Pressure gauge 12 is installed at both ends of the connecting housing 1. Pressure gauge 12 is used to detect whether the internal pressure of the pipeline changes. Self-tightening mechanism 2 is installed at both ends of the connecting housing 1. The self-tightening mechanism 2 determines whether the tightness of the pipe connection has changed and automatically adjusts the tightness based on the detection results.

2. A high-pressure filter with real-time leakage function according to claim 1, characterized in that; The self-tightening mechanism 2 includes a tightness self-adjusting component and a rotating component. The rotating component includes a sealing shell 21, which has a hollow structure. An annular elastic plate 25 is provided on the inner side to achieve a sealing effect and form a medium flow channel. Connecting frames 23 are provided on both sides of the rotating component. Rotating blades 22 are provided between the connecting frames 23 to drive the annular elastic plate 25 to rotate through the medium flow. The rotating blades 22 are connected to the rotating blades 24 through connecting rods 24. The annular elastic plate 25 has contact balls 252 on both sides to contact the inner wall of the sealing shell 21 to achieve a rotation effect. A ball groove 251 is provided on the inner side of the annular elastic plate 25.

3. A high-pressure filter with real-time leakage function according to claim 2, characterized in that; The middle part of the sealing shell 21 is made of hard material, and the two sides are made of elastic material to give it the ability to deform and improve the sealing effect. The inner side of the sealing shell 21 is provided with a mating groove 27.

4. A high-pressure filter with real-time leakage function according to claim 2, characterized in that; The self-adjusting assembly includes a connecting ball 2111 disposed in a ball groove 251. A multi-arm crank 211 is connected to the connecting ball 2111 via a rotating shaft. The end of the multi-arm crank 211 is inserted into a mounting bracket 210. A contact sensor 29 is provided at a corresponding position of the multi-arm crank 211 to determine the position of the multi-arm connection end. The mounting bracket 210 is located at and connected to the rigid material of the sealed housing. Several telescopic rods 28 are connected to the mounting bracket 210. A conical block 26 is movably disposed on each telescopic rod 28, and the conical block 26 contacts the mating groove 27.

5. A high-pressure filter with real-time leakage function according to claim 1, characterized in that... In the initial state, there is a gap between the bottom of the cone block 26 and the contact ball 252.

6. A high-pressure filter with real-time leakage function according to claim 4, characterized in that; The multi-layer filter core 11 is made of four layers of material.

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