Energy-consuming-type water hammer effect eliminating device for submarine fluid-transposition pipeline

Abstract

An energy-consuming-type water hammer effect eliminating device for a submarine fluid-transposition pipeline, the device comprising a fixing flange (4) and a housing (1) fixedly connected to the fixing flange, wherein a first partition plate (15) and a second partition plate (17) are slidably connected to the inner wall of the housing; a reset assembly (12) for resetting the first partition plate and the second partition plate which have slid is provided in the housing; the first partition plate and the second partition plate divide the interior of the housing into a water storage chamber (7), an air storage chamber (6) and a buffer chamber (5), the water storage chamber, the air storage chamber and the buffer chamber being adjacently arranged in sequence, and the buffer chamber being located at the end close to the fixing flange; the bottom of the buffer chamber is fixedly connected to a water intake plate (8), and the inner side wall of the buffer chamber is fixedly connected to an adjustment plate (9); and the air storage chamber is in communication with a driving chamber by means of a pressure relief pipe (2) therebetween, and a bidirectional pressure relief valve (3) is provided on the pressure relief pipe. The device can linearly and stably eliminate a water hammer effect, and is almost not subject to any wear and tear during the entire elimination process, and the service life of the device can also be prolonged.

Description

An energy-consuming device for eliminating water hammer effect in submarine flow pipelines Technical Field

[0001] The invention belongs to the field of water hammer elimination devices, in particular to an energy-consuming submarine flow pipeline water hammer effect elimination device. Background Art

[0002] Water hammer refers to the pressure fluctuations caused by a sudden stop or change in the flow of fluid in a pipeline. Long-term water hammer can damage pipelines and equipment, and even cause serious accidents such as explosions and leaks. Existing water hammer suppressors mostly use compressed air and liquid to achieve a buffering effect, reducing the impact of water. However, this type of water hammer suppressor has a relatively low energy consumption and is not very effective in reducing the water hammer effect.

[0003] To this end, Chinese patent document CN113309924B proposes an energy-consuming water hammer effect eliminator, comprising a hollow pipe body. This invention consumes the kinetic energy generated by the liquid flow by rotating a coil spring-type friction mechanism, converting it into heat energy. This heat energy is generated by friction, that is, the service life of this technical solution will be reduced accordingly. As the coil spring-type friction mechanism wears out, its effect on eliminating water hammer will also gradually decrease. Secondly, when the water flow in the pipeline enters the eliminator, the water impact force gradually decreases, the flow rate of the water flow gradually decreases, and the driving force on the coil spring-type friction mechanism also gradually decreases. Correspondingly, when the water flow flows out of the eliminator, the driving force of the rebound water flow gradually decreases, the flow rate of the water flow gradually decreases, and the driving force on the coil spring-type friction mechanism also gradually decreases. In addition, the rotation of the coil spring-type friction mechanism is not smooth, resulting in the above-mentioned technical solution being not stable enough in eliminating water hammer.

[0004] Submarine pipelines are pipelines installed on the seabed for transporting media. Water hammer eliminators used in submarine pipelines are difficult to maintain due to their installation location on the seabed. Therefore, water hammer eliminators with longer service life and higher stability are required.

[0005] In summary, there is an urgent need for an energy-consuming submarine pipeline water hammer effect elimination device that has a long service life and can stably eliminate water hammer, so as to improve the elimination effect of submarine pipeline water hammer and reduce the impact of water hammer on submarine pipelines. Summary of the Invention

[0006] The purpose of the present invention is to provide an energy-consuming submarine flow pipeline water hammer effect elimination device to solve the problems of short service life and unstable elimination of water hammer of existing water hammer arresters.

[0007] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows: an energy-consuming submarine flow pipeline water hammer effect elimination device, comprising a fixed flange and a housing fixedly connected to the fixed flange, a first baffle and a second baffle being slidably connected to the inner wall of the housing, a reset assembly being provided in the housing for resetting the first and second baffles after sliding, the first and second baffles dividing the interior of the housing into a water storage chamber, an air storage chamber, and a buffer chamber, the water storage chamber, the air storage chamber, and the buffer chamber being arranged adjacent to each other in sequence, and the buffer chamber being located near one end of the fixed flange;

[0008] A water inlet plate is fixedly connected to the bottom of the buffer chamber, and a water inlet circular hole and several water inlet oblong holes are provided on the water inlet plate. The area of ​​the water inlet circular hole is smaller than the total area of ​​the several water inlet oblong holes. A connecting pipe is fixedly connected to the outer shell, and the axis of the connecting pipe coincides with the axis of the outer shell. The connecting pipe connects the water inlet circular hole with the water storage chamber, and the water inlet oblong holes are all connected with the buffer chamber. An adjusting plate is fixedly connected to the inner wall of the buffer chamber, and a closed opening is provided in the center of the adjusting plate. Several driving chambers are provided in the adjusting plate, and several closing blocks are slidably connected in the driving chamber. One end of the closing block extends into the closed opening. A pressure relief pipe is connected between the air storage chamber and the driving chamber, and a two-way pressure relief valve is provided on the pressure relief pipe.

[0009] The technical principles of the above solution are as follows:

[0010] When the submarine pipeline transports water normally, water flows into the water storage chamber through the water inlet circular hole, that is, the water pressure in the water storage chamber is kept balanced with the water pressure in the submarine pipeline, and the water pressure in the buffer chamber is also balanced with the water pressure in the submarine pipeline; when the water hammer phenomenon occurs, because the area of ​​the water inlet circular hole is smaller than the total area of ​​several water inlet oblong holes, a large amount of water enters the buffer chamber earlier, and a small amount of water enters the water storage chamber later. The impact of the water flow causes the second baffle to slide, compressing the air in the air storage chamber, which then causes the first baffle to slide, increasing the resistance of water flow to the water storage chamber, thereby achieving the initial elimination of water hammer.

[0011] As more water enters the water storage chamber, the first baffle and the second baffle move closer to each other, and the air in the air storage chamber is compressed, and the internal pressure gradually increases. When the pressure reaches the opening pressure of the two-way pressure relief valve, the air in the air storage chamber enters the driving chamber through the pressure relief pipe, causing the closing block to gradually close the closed opening, thereby gradually reducing the squeeze of the external water on the second baffle until the closed opening is completely closed. Since a similar closed space is formed between the regulating plate and the second baffle, it is more difficult to compress the water in the closed space when the second baffle is reset downward than when the first baffle is reset upward. It is difficult to reset the compressed upper low-pressure space, so the reset component will give priority to resetting the first baffle, and the water in the water storage chamber will gradually be transported back to the submarine pipeline. Due to the reset of the first baffle, the internal space of the air storage chamber will gradually increase and its internal pressure will gradually decrease, so that the two-way pressure relief valve will open again, thereby gradually transporting the air in the drive chamber back to the air storage chamber. At the same time, the closing block will shrink, the closed opening will gradually open, the second baffle will also gradually reset, and the closing block will also synchronously shrink back to its initial state. The water pressure in the water storage chamber and the buffer chamber will gradually recover to balance with the water pressure in the submarine pipeline.

[0012] The above scheme has the following beneficial effects:

[0013] 1. In this solution, at the initial stage of water hammer, the impact force of the water hammer is used to discharge the water in the water storage chamber into the submarine pipeline. The water in the water storage chamber can increase the resistance of the water in the submarine pipeline with the impact force to enter the water storage chamber. At the same time, the second baffle cushions the impact force of the water in the submarine pipeline, thereby achieving preliminary elimination of water hammer.

[0014] In the middle and late stages of water hammer, the impacting water has fully entered the water storage chamber and the buffer chamber, causing the first and second baffles to move closer together. When the pressure in the air storage chamber reaches the opening pressure of the two-way pressure relief valve, the air inside the air storage chamber is transported to the drive chamber, causing the closed opening to gradually close. As the closed opening gradually closes, the secondary elimination of water hammer is completed. Subsequently, the water in the water storage chamber is gradually transported back to the submarine pipeline, and the closed opening gradually returns to its initial state. The water pressure in the water storage chamber and the buffer chamber is restored to balance with the submarine pipeline water pressure. Compared with the existing technology, this solution can make the elimination device linearly and stably eliminate the water hammer effect, making the entire water hammer elimination more stable. At the same time, the entire elimination process will cause almost no damage to the device, thereby increasing the life of the elimination device.

[0015] 2. In this solution, at the initial stage of water hammer generation, that is, when the water hammer wave reaches the elimination device, the water hammer wave is relatively strong, and the water output from the water storage chamber just offsets the relatively strong water hammer wave. Compared with the existing technology, this solution can start the elimination of water hammer more stably and avoid the contact with the initial stage of water hammer wave elimination device to generate large vibrations that affect the water hammer elimination effect.

[0016] Furthermore, the water inlet oblong holes are evenly distributed on the water inlet plate around the circumference of the axis of the water inlet plate, and the water inlet oblong holes are all inclined structures, and a plurality of water inlet oblong holes form a vortex structure.

[0017] Beneficial effect: The vortex structure formed by the plurality of oblong holes can promote the flow of water into and out of the buffer chamber, further increase the speed at which water enters the buffer chamber, ensure that the second baffle is squeezed first, and promote the water in the water storage chamber to be discharged outward as soon as possible.

[0018] Furthermore, the reset assembly is a plurality of springs arranged in the air storage chamber, and both ends of the springs are fixedly connected to the first partition plate and the second partition plate respectively.

[0019] Beneficial effect: After the first partition plate and the second partition plate are brought close to each other, the spring is compressed. As the water hammer is eliminated, the elastic force of the spring separates the first partition plate and the second partition plate, thereby restoring the first partition plate and the second partition plate to their initial state.

[0020] Furthermore, a sliding groove is provided on the inner wall of the shell, and the first partition plate and the second partition plate are both slidably connected in the sliding groove. A limiting ring is fixedly connected to the side wall of the connecting pipe located in the air storage chamber, and the height of the limiting ring corresponds to the height of the connection point between the pressure relief pipe and the air storage chamber.

[0021] Beneficial effects: The maximum separation distance between the first partition and the second partition is limited by the sliding groove, and the minimum distance between the first partition and the second partition is limited by the limiting ring, and the height of the limiting ring corresponds to the height of the connection point between the pressure relief pipe and the air storage chamber, thereby preventing the pressure relief pipe from being connected to the water storage chamber and the buffer chamber.

[0022] Furthermore, a plurality of water inlet holes are opened on the side wall of the connecting pipe located inside the water storage chamber. The water inlet holes are evenly distributed around the circumference of the axis of the connecting pipe, and the water inlet holes are all located above the sliding groove.

[0023] Beneficial effect: The water delivered to the connecting pipe can be evenly delivered to the surrounding areas of the water storage chamber through the water inlet holes, and the water inlet holes are all located above the sliding groove to prevent water from entering the air storage chamber.

[0024] Furthermore, the internal volume of the air storage chamber is greater than the total internal volume of the driving chamber.

[0025] Beneficial effect: ensuring that the closing block in the driving chamber can fully extend into the closing opening when the first partition and the second partition are in the closest state, thereby sealing the closing opening.

[0026] Furthermore, the outer side walls of the first partition plate and the second partition plate are both sleeved with sealing rings, which abut against the side walls of the sliding groove.

[0027] Beneficial effect: The sealing performance of the air storage chamber is increased by the sealing ring, thereby avoiding air leakage inside the air storage chamber during the water hammer elimination process, which affects the subsequent water hammer elimination effect.

[0028] Furthermore, the springs are evenly distributed around the circumference of the housing axis.

[0029] Beneficial effect: promoting the stability of the first partition and the second partition during the sliding and resetting process.

[0030] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is an external view of an embodiment of an energy-consuming submarine fluid pipeline water hammer effect elimination device according to the present invention;

[0032] FIG2 is a cross-sectional view of an embodiment of an energy-consuming submarine fluid pipeline water hammer effect elimination device according to the present invention;

[0033] FIG3 is a top view of the water inlet plate of an embodiment of the energy-consuming submarine flow pipeline water hammer effect elimination device of the present invention;

[0034] FIG4 is a top view of the regulating plate of an embodiment of the energy-consuming submarine fluid pipeline water hammer effect elimination device of the present invention. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0037] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0038] The following is further described in detail through specific implementation methods:

[0039] The figure marks in the drawings of the specification include: outer shell 1, pressure relief pipe 2, two-way pressure relief valve 3, fixing flange 4, buffer chamber 5, air storage chamber 6, water storage chamber 7, water inlet plate 8, adjustment plate 9, sliding groove 10, limiting ring 11, spring 12, connecting pipe 13, water inlet hole 14, first partition 15, sealing ring 16, second partition 17, water inlet oblong hole 18, water inlet circular hole 19, drive chamber 20, closing block 21, closing opening 22.

[0040] An embodiment is shown in Figures 1-4: an energy-consuming submarine flow pipeline water hammer effect elimination device includes a fixed flange 4 and a shell 1 fixedly connected to the fixed flange 4. The shell 1 is a cylindrical structure with an open end. The fixed flange 4 and the shell 1 are fixedly connected by bolts. The fixed flange 4 is connected to the submarine pipeline by opening a through hole, so that the shell 1 is connected to the submarine pipeline.

[0041] A sliding groove 10 is provided on the inner side wall of the housing 1. A first partition 15 and a second partition 17 are slidably connected in the sliding groove 10. The outer side walls of the first partition 15 and the second partition 17 are both sleeved with sealing rings 16. The sealing rings 16 abut against the side walls of the sliding groove 10, thereby improving the sealing of the air storage chamber 6. A reset assembly is provided in the housing 1 to reset the first partition 15 and the second partition 17 after sliding. Specifically, the reset assembly is a plurality of springs 12 provided in the air storage chamber 6. The springs 12 are evenly distributed around the axis of the housing 1. The two ends of the springs 12 are fixedly connected to the first partition 15 and the second partition 17, respectively. In addition, the reset of the first partition 15 and the second partition 17 after sliding can also be achieved by fixing the springs 12 between the first partition 15 and the second partition 17 and the inner side wall of the housing.

[0042] In the initial state, a certain distance exists between first baffle 15 and second baffle 17. These baffles separate the interior of housing 1 into a water storage chamber 7, an air storage chamber 6, and a buffer chamber 5. These chambers are arranged adjacent to each other, with the buffer chamber 5 located near the end of fixed flange 4. As shown in FIG2 , from top to bottom, the water storage chamber 7, the air storage chamber 6, and the buffer chamber 5 are arranged in this order. The buffer chamber 5 is directly connected to the submarine pipeline.

[0043] The bottom of the buffer chamber 5 is fixedly connected to a water inlet plate 8. This plate is provided with a circular water inlet hole 19 and a plurality of oblong water inlet holes 18. The oblong water inlet holes 18 are evenly distributed around the axis of the plate 8 and are all inclined. These oblong water inlet holes 18 form a swirl structure. When water passes through the oblong water inlet holes 8, a swirl is formed, allowing it to quickly pass through the plate 8.

[0044] Secondly, in order to make the total amount of water passing through the water inlet oblong hole 18 per unit time greater than the amount of water passing through the water inlet circular hole 19 , the area of ​​the water inlet circular hole 19 is smaller than the total area of ​​the water inlet oblong holes 18 .

[0045] The top wall of the housing 1 is fixedly connected to a connecting pipe 13 by bolts. The axis of the connecting pipe 13 coincides with the axis of the housing 1. The connecting pipe 13 connects the water inlet hole 19 with the water storage chamber 7. The connecting pipe 13 is located inside the water storage chamber 7. The side wall of the connecting pipe 13 is provided with a plurality of water inlet holes 14. The water inlet holes 14 are evenly distributed around the axis of the connecting pipe 13, and the water inlet holes 14 are all located above the sliding groove 10. After the elimination device is connected to the submarine pipeline, the water in the submarine pipeline is transported to the water storage chamber 7 through the connecting pipe 13 and the water inlet holes 14. Under normal operation of the submarine pipeline, the water pressure in the water storage chamber 7 is balanced with the water pressure in the submarine pipeline. The water inlet oblong holes 18 are all connected to the buffer chamber 5. Under normal operation of the submarine pipeline, the water pressure in the buffer chamber 5 is also equal to the water pressure in the submarine pipeline.

[0046] An adjusting plate 9 is fixedly connected to the inner wall of the buffer chamber 5, a closed opening 22 is provided in the center of the adjusting plate 9, a plurality of driving chambers 20 are provided in the adjusting plate 9, a plurality of closing blocks 21 are slidably connected in the driving chamber 20, one end of the closing block 21 extends into the closed opening 22, a pressure relief pipe 2 is connected between the air storage chamber 6 and the driving chamber 20, and a two-way pressure relief valve 3 is provided on the pressure relief pipe 2. The two-way pressure relief valve 3 of this embodiment adopts the two-way pressure relief valve 3 recorded in CN201811487264.9.

[0047] In order to ensure that the closing block 21 in the driving chamber 20 can fully extend into the closing opening 22 and close the closing opening 22 when the first partition 15 and the second partition 17 are in the closest state, the internal volume of the air storage chamber 6 is larger than the total internal volume of the driving chamber 20.

[0048] A limit ring 11 is fixedly connected to the side wall of the connecting pipe 13 located in the air storage chamber 6. The height of the limit ring 11 corresponds to the height of the connection point between the pressure relief pipe 2 and the air storage chamber 6. The limit ring 11 limits the minimum distance between the first partition 15 and the second partition 17, preventing the pressure relief pipe 2 from communicating with the water storage chamber 7 and the buffer chamber 5.

[0049] The specific implementation process is as follows:

[0050] After the elimination device is connected to the submarine pipeline through the fixed flange 4, water flows into the water storage chamber 7 through the water inlet hole 19, that is, the water pressure in the water storage chamber 7 is kept balanced with the water pressure in the submarine pipeline, and water flows into the buffer chamber 5 through the water inlet plate 8, that is, the water pressure in the buffer chamber 5 is also balanced with the water pressure in the submarine pipeline.

[0051] When water hammer occurs, since the area of ​​the water inlet circular hole 19 is smaller than the total area of ​​the water inlet oblong holes 18, a large amount of water enters the buffer chamber 5 earlier, and a small amount of water enters the water storage chamber 7 later. The impact of the water flow causes the second partition 17 to slide upward, compressing the air in the air storage chamber 6, and then causing the first partition 15 to slide upward, increasing the resistance of the water flow into the water storage chamber, thereby achieving the initial elimination of the water hammer.

[0052] As more water enters the water storage chamber 7, the first baffle 15 and the second baffle 17 move closer to each other, and the air in the air storage chamber 6 is compressed and the internal pressure gradually increases. When the pressure reaches the opening pressure of the two-way pressure relief valve 3, the air in the air storage chamber 6 enters the drive chamber 20 through the pressure relief pipe 2, and the closing block 21 is driven by the air to extend into the closing opening 22, gradually closing the closing opening 22, thereby gradually reducing the squeezing of the external water on the second baffle 17 until the closing opening 22 is completely closed. At this time, the impact force of the water hammer is also gradually offset.

[0053] Since a similar closed space is formed between the regulating plate 9 and the second partition 17, the reset component will preferentially reset the first partition 15, and the water in the water storage chamber 7 will be gradually transported back to the submarine pipeline. Due to the reset of the first partition 15, the internal space of the air storage chamber 6 gradually becomes larger and its internal pressure gradually decreases, causing the two-way pressure relief valve 3 to open again, thereby gradually transporting the air in the drive chamber 20 back to the air storage chamber 6. At the same time, the closing block 21 shrinks back into the drive chamber 20, and the closing opening 22 gradually opens. The second partition 17 also gradually resets, and the closing block 21 also shrinks back to its initial state synchronously. The water pressure in the water storage chamber 7 and the buffer chamber 5 gradually recovers to balance with the water pressure in the submarine pipeline.

[0054] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and / or characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An energy-consuming submarine flow pipeline water hammer effect elimination device, characterized in that: The invention comprises a fixed flange (4) and a housing (1) fixedly connected to the fixed flange (4); a first partition (15) and a second partition (17) are slidably connected to the inner wall of the housing (1); a reset assembly (12) is arranged in the housing (1) for resetting the first partition (15) and the second partition (17) after sliding; the first partition (15) and the second partition (17) divide the interior of the housing (1) into a water storage chamber (7), an air storage chamber (6) and a buffer chamber (5); the water storage chamber (7), the air storage chamber (6) and the buffer chamber (5) are arranged adjacent to each other in sequence, and the buffer chamber (5) is located at one end close to the fixed flange (4); A water inlet plate (8) is fixedly connected to the bottom of the buffer chamber (5), and a water inlet circular hole (19) and a plurality of water inlet oblong holes (18) are formed on the water inlet plate (8). The area of ​​the water inlet circular hole (19) is smaller than the total area of ​​the plurality of water inlet oblong holes (18). A connecting pipe (13) is fixedly connected to the outer shell (1), and the axis of the connecting pipe (13) coincides with the axis of the outer shell (1). The connecting pipe (13) connects the water inlet circular hole (19) with the water storage chamber (7), and the water inlet oblong holes (18) are connected to the buffer chamber ( 5), an adjusting plate (9) is fixedly connected to the inner wall of the buffer chamber (5), a closed opening (22) is provided at the center of the adjusting plate (9), a plurality of driving chambers (20) are provided in the adjusting plate (9), a plurality of closing blocks (21) are slidably connected in the driving chamber (20), one end of the closing block (21) extends into the closed opening (22), a pressure relief pipe (2) is connected between the air storage chamber (6) and the driving chamber (20), and a two-way pressure relief valve (3) is provided on the pressure relief pipe (2).

2. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1, characterized in that: The water inlet oblong holes (18) are evenly distributed on the water inlet plate (8) around the circumference of the axis of the water inlet plate (8), and the water inlet oblong holes (18) are all inclined structures, and a plurality of the water inlet oblong holes (18) form a vortex structure.

3. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1, characterized in that: The reset assembly is a plurality of springs (12) arranged in the air storage chamber (6), and two ends of the springs (12) are respectively fixedly connected to the first partition plate (15) and the second partition plate (17).

4. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1, characterized in that: A sliding groove (10) is provided on the inner side wall of the housing (1), and the first partition plate (15) and the second partition plate (17) are both slidably connected in the sliding groove (10). A limit ring (11) is fixedly connected to the side wall of the connecting pipe (13) located in the gas storage chamber (6), and the height of the limit ring (11) corresponds to the height of the connection point between the pressure relief pipe (2) and the gas storage chamber (6).

5. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1 is characterized in that: The connecting pipe (13) is located on a side wall inside the water storage chamber (7) and is provided with a plurality of water inlet holes (14). The water inlet holes (14) are evenly distributed around the circumference of the axis of the connecting pipe (13), and the water inlet holes (14) are all located above the sliding groove (10).

6. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1, characterized in that: The internal volume of the air storage chamber (6) is greater than the total internal volume of the drive chamber (20).

7. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1 is characterized in that: The outer side walls of the first partition plate (15) and the second partition plate (17) are both sleeved with sealing rings (16), and the sealing rings (16) abut against the side walls of the sliding groove (10).

8. The energy-consuming submarine pipeline water hammer effect elimination device according to claim 1 is characterized in that: The springs (12) are evenly distributed around the circumference of the axis of the housing (1).

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