CN113107593A - Water hammer eliminating device for mine drainage - Google Patents
Water hammer eliminating device for mine drainage Download PDFInfo
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- CN113107593A CN113107593A CN202110551625.7A CN202110551625A CN113107593A CN 113107593 A CN113107593 A CN 113107593A CN 202110551625 A CN202110551625 A CN 202110551625A CN 113107593 A CN113107593 A CN 113107593A
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- water hammer
- piston ring
- wall
- sleeve
- pipe
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a water hammer eliminating device for mine drainage; comprises a pipe body and a flange; flanges are arranged at the end parts of the pipe bodies, and the pipe bodies are connected with water pipe pipelines through the arranged flanges; the upper side and the lower side of the pipe body are both communicated with a box body, a movable plate is arranged at one side close to the pipe body in the box body, the movable plate is connected with a buffer assembly, and the buffer assembly is connected with the inner wall of the box body; the inner wall of the pipe body is provided with a piston ring, a rotating plate is arranged in the center of the piston ring and can rotate in the piston ring, one side of the piston ring is connected with a plurality of elastic components, the other ends of the elastic components are connected with a connecting block, and the other end of the connecting block is connected with the inner wall of the pipe body; through setting up elastic component and buffering subassembly combined action, relapse a lot of and form reaction force to the water hammer, eliminate the water hammer, reduce the harm of water hammer to mine body and valve, guarantee normal production, increase the security of mine pipeline water delivery.
Description
Technical Field
The invention belongs to the field of pipeline water delivery, and particularly relates to a water hammer eliminating device for mine drainage.
Background
The water hammer effect is an image saying that water flow impacts a pipeline when a feed pump is started and stopped, and a serious water hammer is generated. Because the inner wall of the water pipe is smooth, water can freely flow. When the open valve is suddenly closed or the water pump is stopped, the water flow generates a pressure on the valve and the pipe wall, mainly the valve or the pump. Because the pipe wall is smooth, the water power of the subsequent water flow quickly reaches the maximum under the action of inertia, and a destructive effect is generated, namely a water hammer effect in hydraulics, namely a positive water hammer. Conversely, a closed valve, when suddenly opened or the feed pump is started, also produces a water hammer, called a negative water hammer.
In a mine water conveying pipeline, the damage of a water hammer is huge, the pipeline is easy to shake strongly, a pipeline joint is disconnected, water is poured into a mine channel to cause a water flooding event, the impact force of the water hammer damages a valve, and the pipe is shrunken and collapsed due to too low pressure, so that the water pump is caused to rotate reversely to damage a pump room or the pipeline, and the production and construction safety is influenced. The existing water hammer generally adopts pressure relief or one-way buffering to reduce the pressure of the water hammer, so that the cost is higher, and the water hammer removing effect is general.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a water hammer eliminating device for mine drainage, which has the advantages that an elastic component is arranged to be matched with a rotating plate to rotate, a reaction is generated on the formed water hammer when a valve is closed, the elastic component is used for rebounding and backflushing, the pressure of the water hammer is gradually counteracted for multiple times, and the impact force of the water hammer is reduced; in addition, through the box body symmetrically arranged on the side wall of the tank body, the buffering component and the movable plate are arranged in the box body, the water hammer pressure is released and the movable plate carries out secondary buffering through the buffering component, the pressure of the water hammer on the side wall of the pipe body is offset, the cost of the water hammer is reduced, the pressure of the water hammer is reduced, the damage of the water hammer on the pipe body or a valve is reduced, normal production is guaranteed, and the safety of water delivery of a mine pipeline is improved.
The invention provides the following technical scheme:
a water hammer eliminating device for mine drainage; comprises a pipe body and a flange; flanges are arranged at the end parts of the pipe bodies, and the pipe bodies are connected with water pipe pipelines through the arranged flanges;
the upper side and the lower side of the pipe body are both communicated with a box body, a movable plate is arranged at one side close to the pipe body in the box body, the movable plate is connected with a buffer assembly, and the buffer assembly is connected with the inner wall of the box body;
the inner wall of body is equipped with the piston ring, and the piston ring center is equipped with the rotor plate, and the rotor plate can rotate inside the piston ring, one side of piston ring is connected with a plurality of elastic component, and is a plurality of elastic component's the other end all is connected with the connecting block, the other end of connecting block with the interior wall connection of body.
Preferably, a hollow cavity is arranged between the inner wall and the outer wall of the piston ring, the piston ring is in sealed sliding connection with the inner wall of the pipe body through a rubber ring, a servo motor is arranged inside the cavity, an output shaft of the servo motor penetrates through the inner wall of the piston ring, the output shaft of the servo motor is connected with a rotating shaft, the rotating shaft is connected with a rotating plate, and the rotating shaft is arranged at the center of the rotating plate and drives the rotating plate to rotate; the rotating plate is of a circular structure and is used for blocking water flow when the rotating plate and the piston ring form closing.
Preferably, the elastic components are uniformly and symmetrically distributed on one side of the piston ring and comprise a sleeve, one end of the sleeve is connected with the piston ring, a telescopic rod is arranged inside the other end of the sleeve, and the other end of the telescopic rod is connected with the connecting block; the outside cover of sleeve pipe and telescopic link is equipped with first spring, first spring one end is connected with the piston ring, and the other end is connected with the connecting block.
Preferably, the pipe wall of one end of the sleeve close to the telescopic rod is bent towards the interior of the sleeve and is in a vertical structure with the sleeve pipe body; one end of the telescopic rod, which is positioned in the sleeve, is bent towards the outside of the telescopic rod by 90 degrees; the inside anti-disengaging structure that forms of sleeve pipe and telescopic link outside prevents that the telescopic link from slipping in the sleeve pipe.
Preferably, one side that the body was kept away from to the fly leaf is connected with the fixed block, the fixed block is connected with the buffering subassembly, and the buffering subassembly includes the connecting rod, the connecting rod symmetry is equipped with two, two the one end of connecting rod all is connected with the fixed block rotation through the round pin axle, two the other end of connecting rod all is connected with the shift ring, the shift ring cover is established on the guide arm, shift ring and guide arm sliding connection.
Preferably, the guide rod sets up the inside one end of keeping away from the fly leaf of box body, the both ends of guide rod all with box body inner wall connection, one side that the fly leaf was kept away from to the guide rod is equipped with the spout, the lateral wall that the shift ring is close to the spout is connected with the slider, slider and spout constitution match sliding connection.
Preferably, the guide rod is sleeved with a second spring at a position close to the two ends, one end of the second spring is connected with the moving ring, and the other end of the second spring is connected with the inner wall of the box body.
Preferably, the connection and the moving ring form a rotary connection through a pin shaft.
Preferably, the elastic component can be increased or decreased according to actual use, two ends of the elastic component are connected with the connecting block and the piston ring through bolts, and the elastic component is uniformly distributed along the circumferential direction of the piston ring and selectively installed in pairs when being installed.
In addition, when the water hammer is eliminated, water flows through the piston ring from one side of the pipe body in the positive direction, and after the valve is closed, the servo motor is controlled to drive the rotating plate to rotate through the arranged electromagnetic valve, so that the rotating plate and the piston ring are positioned on the same plane, and the water flow is effectively blocked; when water hammer effect and rotating plate are formed by water flow due to inertia after the valve is closed, the rotating plate drives the piston ring to move backwards along with the pressure of the water hammer, and in the moving process, the piston ring effect and the sleeve, the sleeve and the telescopic rod interact. The telescopic rod is contracted into the sleeve, at the moment, the first spring belongs to a compression stage, and the water hammer is partially buffered by compressing the first spring; after the first spring is compressed to the limit, the first spring is extended to rebound, the first spring drives the sleeve and the telescopic rod to move relatively in the rebound process of the first spring, the telescopic rod extends out of the sleeve, the second spring and the sleeve act on the piston ring together, the piston ring drives the rotating plate to form a reaction force for the water hammer, the impact force of the water hammer on the valve is eliminated for the second time, and the damage of the water hammer on the closed valve is greatly eliminated.
The elastic component is arranged to be matched with the piston ring to form a forward counteracting water hammer, and meanwhile, the buffer component and the movable plate are arranged on the side wall of the pipe body to counteract the acting force of the water hammer on the side wall of the pipe body, so that the destructive power of the water hammer is reduced; because the water hammer has impact force to both the forward direction and the lateral direction, the pressure of the water hammer acting on the side wall of the pipe body needs to be buffered while the forward pressure of the water hammer is reduced, and the impact force of the water hammer is reduced; when the water hammer acts on the movable plate, the movable plate forms pressure to act on the symmetrically arranged connecting rods, the connecting rods are rotationally connected with the fixed block and the movable ring, when the movable plate acts on the connecting rods, the other end of each connecting rod acts on the movable ring, and the movable ring slides on the guide rod, so that the angle between the two connecting rods is increased, the movable plate is driven to move in a short distance, and the impact force of the water hammer is buffered for the first time in the moving process of the movable plate; the shift ring slides in the spout through the slider that sets up simultaneously, increase the stability of shift ring, prevent that shift ring and guide arm from forming the pressure dead angle, the slip of restriction shift ring, the shift ring is in to both sides gliding, shift ring extrusion second spring, when the second spring extrudees the limit, the extension of second spring bounce-back, it is the reverse movement to drive the shift ring, the shift ring drives the connecting rod and rotates, reduce contained angle between two connecting rods, thereby make fly leaf reverse movement, form a reverse effort to the water hammer, the effort of water hammer is offset to the second time, through the buffering of repeating several times, the impact force until the water hammer is eliminated completely, reach the purpose of little water hammer. Through setting up elastic component and buffering subassembly combined action, relapse a lot of and form reaction force to the water hammer, eliminate the water hammer, reduce the harm of water hammer to mine body and valve, guarantee normal production, increase the security of mine pipeline water delivery.
Preferably, in order to better eliminate the water hammer and reduce the acting force of the water hammer, the resilience force F1 of the first spring and the section thereofThe following relationships are satisfied between the distance t, the length L and the pressure F2 of the water hammer to the piston ring: F-F2 ═ k (L/t)2(ii) a k is an elastic coefficient, and the value range is 23-75%; F. f2 units N/m; t and L are in cm; the resilience force F3 of the second spring satisfies the following relations among the pitch t1, the length L1 and the pressure F4 of the water hammer on the movable plate: F3-F4 ═ k1 (L1/t1)2(ii) a k1 is the elastic coefficient, and the value range is 30-80%; f3, F4 units N/m; t1, L1 units are cm.
In order to better promote the mutual interaction of the elastic component and the buffer component, increase the reaction force formed by the water hammer and reduce the damage of the water hammer, the elastic force F1 of the first spring, the elastic force F3 of the second spring and the pressure F2 of the water hammer on the piston ring and the pressure F4 of the water hammer on the movable plate meet the conditions that F3+ F4< F1. F2/(F1 + F2); according to experience, when the combined acting force of the first spring and the second spring is larger than the total acting force of the water hammer, the water hammer eliminating effect is ideal.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the device for eliminating the water hammer for mine drainage, the elastic assembly is arranged to be matched with the rotating plate to rotate, a reaction is generated on the formed water hammer when the valve is closed, rebound and recoil are carried out through the elastic assembly, the pressure of the water hammer is gradually counteracted for multiple times, and the impact force of the water hammer is reduced.
(2) According to the device for eliminating the water hammer for mine drainage, the box body is symmetrically arranged on the side wall of the tank body, the buffering component and the movable plate are arranged in the box body, the pressure of the water hammer is released and the movable plate is buffered for the second time through the buffering component, so that the pressure of the water hammer on the side wall of the pipe body is counteracted, the cost of the water hammer is reduced, the pressure of the water hammer is reduced, the damage of the water hammer on the pipe body or the valve is reduced, the normal production is ensured, and the safety of mine pipeline water delivery is improved.
(3) According to the device for eliminating the water hammer for mine drainage, the elastic component and the buffering component are arranged to act together, so that reaction force is repeatedly formed on the water hammer for many times, the water hammer is eliminated, the damage of the water hammer to a mine pipe body and a valve is reduced, normal production is guaranteed, and the safety of mine pipeline water delivery is improved.
(4) According to the device for eliminating the water hammer for mine drainage, the movable ring slides in the sliding groove through the arranged sliding block, so that the stability of the movable ring is improved, the movable ring is prevented from forming a pressure dead angle with the guide rod, and the sliding of the movable ring is limited.
(5) According to the device for eliminating the water hammer for mine drainage, the following relations are satisfied between the resilience force of the first spring, the pitch and the length of the first spring and the pressure of the water hammer on a piston ring, so that the acting force of the water hammer is reduced better, and the buffering effect on the water hammer is improved.
(6) The invention relates to a water hammer eliminating device for mine drainage, which better promotes the combined interaction of an elastic component and a buffer component by limiting the elastic force of a first spring, the elastic force of a second spring, the pressure of a water hammer on a piston ring and the pressure of the water hammer on a movable plate, increases the reaction force formed on the water hammer and reduces the damage of the water hammer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the connection structure of the piston ring and the elastic component of the invention.
Fig. 3 is a schematic view of the structure of the piston ring closed by the rotating plate of the present invention.
Fig. 4 is a schematic view of the piston ring structure opened by the rotating plate of the present invention.
Fig. 5 is a schematic view of the structure of the elastic member of the present invention.
FIG. 6 is a schematic view of the structure of the buffer assembly of the present invention.
In the figure: 1. a pipe body; 2. a flange; 3. a piston ring; 4. an elastic component; 5. a box body; 6. a movable plate; 7. a buffer assembly; 8. connecting blocks; 9. a servo motor; 10. a rotating plate; 11. a rotating shaft; 12. a fixed block; 13. a cavity; 41. a sleeve; 42. a telescopic rod; 43. a first spring; 71. a connecting rod; 72. a guide bar; 73. a moving ring; 74. a second spring; 75. a slider; 76. a chute.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, 3 and 4, a water hammer eliminating device for mine drainage; comprises a pipe body 1 and a flange 2; flanges 2 are arranged at the end parts of the pipe bodies 1, and the pipe bodies 1 are connected with water pipe pipelines through the arranged flanges 2;
the upper side and the lower side of the pipe body 1 are both communicated with a box body 5, a movable plate 6 is arranged at one side, close to the pipe body 1, in the box body 5, the movable plate 6 is connected with a buffering component 7, and the buffering component 7 is connected with the inner wall of the box body 5;
the inner wall of body 1 is equipped with piston ring 3, and the piston ring 3 center is equipped with rotor plate 10, and rotor plate 10 can rotate in piston ring 3 is inside, one side of piston ring 3 is connected with a plurality of elastic component 4, and is a plurality of elastic component 4's the other end all is connected with connecting block 8, connecting block 8's the other end with the interior wall connection of body 1.
Example two:
as shown in fig. 2 and 5, on the basis of the first embodiment, a hollow cavity 13 is arranged between the inner wall and the outer wall of the piston ring 3, the piston ring 3 is connected with the inner wall of the pipe body 1 in a sealing and sliding manner through a rubber ring, a servo motor 9 is arranged inside the cavity 13, an output shaft of the servo motor 9 penetrates through the inner wall of the piston ring 3, the output shaft of the servo motor 9 is connected with a rotating shaft 11, the rotating shaft 11 is connected with a rotating plate 10, and the rotating shaft 11 is arranged at the center position of the rotating plate 10 and drives the rotating plate 10 to rotate; the rotating plate 10 is of a circular structure, and when the rotating plate 10 and the piston ring 3 are closed, the rotating plate is used for blocking water flow.
The elastic components 4 are uniformly and symmetrically distributed on one side of the piston ring 3, each elastic component 4 comprises a sleeve 41, one end of each sleeve 41 is connected with the piston ring 3, an expansion rod 42 is arranged inside the other end of each sleeve 41, and the other end of each expansion rod 42 is connected with the connecting block 8; the external sleeves of the sleeve 41 and the telescopic rod 42 are provided with a first spring 43, one end of the first spring 43 is connected with the piston ring 3, and the other end is connected with the connecting block 8.
The pipe wall of one end of the sleeve 41 close to the telescopic rod 42 is bent towards the interior of the sleeve 41 and is in a vertical structure with the pipe body 1 of the sleeve 41; one end of the telescopic rod 42, which is positioned in the sleeve 41, is bent towards the outside of the telescopic rod 42, and the bending angle is 90 degrees; the inside of the sleeve 41 and the outside of the telescopic rod 42 form an anti-slip structure to prevent the telescopic rod 42 from slipping out of the sleeve 41. The elastic component 4 can be increased or decreased according to actual use, two ends of the elastic component 4 are connected with the connecting block 8 and the piston ring 3 through bolts, and the elastic component is uniformly distributed along the circumferential direction of the piston ring 3 and is selectively installed in pairs when being installed.
When water hammer is eliminated, water flow positively flows through the piston ring 3 from one side of the pipe body 1, and after a valve is closed, the servo motor 9 is controlled by the arranged electromagnetic valve to drive the rotating plate 10 to rotate, so that the rotating plate 10 and the piston ring 3 are positioned on the same plane, and water flow is effectively blocked; when the water hammer effect is formed by the inertia after the valve is closed and the rotating plate 10 is rotated, the rotating plate 10 drives the piston ring 3 to move backwards along with the pressure of the water hammer, and in the moving process, the piston ring 3 acts on the sleeve 41, and the sleeve 41 interacts with the telescopic rod 42. The telescopic rod 42 is retracted into the sleeve 41, at this time, the first spring 43 belongs to a compression stage, and the water hammer is partially buffered by compressing the first spring 43; after the first spring 43 is compressed to the limit, the first spring 43 performs extension rebound, in the rebound process of the first spring 43, the first spring 43 drives the sleeve 41 and the telescopic rod 42 to move relatively, the telescopic rod 42 extends out of the sleeve 41, the second spring 74 and the sleeve 41 act on the piston ring 3 together, the piston ring 3 drives the rotating plate 10 to form a reaction force on the water hammer, the impact force of the water hammer on the valve is eliminated for the second time, and the damage of the water hammer on the closed valve is greatly eliminated.
Example three:
as shown in fig. 6, on the basis of the first embodiment, one side of the movable plate 6, which is away from the pipe body 1, is connected with a fixed block 12, the fixed block 12 is connected with a buffering assembly 7, the buffering assembly 7 includes two connecting rods 71, the two connecting rods 71 are symmetrically arranged, one ends of the two connecting rods 71 are rotatably connected with the fixed block 12 through pin shafts, the other ends of the two connecting rods 71 are connected with moving rings 73, the moving rings 73 are sleeved on the guide rods 72, and the moving rings 73 are slidably connected with the guide rods 72.
The guide rod 72 is arranged at one end, far away from the movable plate 6, in the box body 5, two ends of the guide rod 72 are connected with the inner wall of the box body 5, a sliding groove 76 is formed in one side, far away from the movable plate 6, of the guide rod 72, a sliding block 75 is connected to the outer side wall, close to the sliding groove 76, of the moving ring 73, and the sliding block 75 and the sliding groove 76 form matched sliding connection.
A second spring 74 is sleeved at the position of the guide rod 72 close to the two ends, one end of the second spring 74 is connected with the moving ring 73, and the other end of the second spring 74 is connected with the inner wall of the box body 5; the connection and the moving ring 73 form a rotary connection through a pin shaft.
While the elastic component 4 is arranged and matched with the piston ring 3 to form a positive counteracting water hammer, the buffer component 7 and the movable plate 6 are arranged on the side wall of the pipe body 1 to counteract the acting force of the water hammer on the side wall of the pipe body 1, so that the destructive force of the water hammer is reduced; because the water hammer forms impact force to both the forward direction and the lateral direction, the pressure of the water hammer acting on the side wall of the pipe body 1 needs to be buffered while the forward direction pressure of the water hammer is reduced, and the impact force of the water hammer is reduced; when the water hammer acts on the movable plate 6, the movable plate 6 forms pressure, the symmetrically arranged connecting rods 71 act, the connecting rods 71 are rotatably connected with the fixed block 12 and the moving ring 73, when the movable plate 6 acts on the connecting rods 71, the other end of the connecting rod 71 acts on the moving ring 73, and the moving ring 73 slides on the guide rod 72, so that the angle between the two connecting rods 71 is increased, the movable plate 6 is driven to move in a short distance, and the impact force of the water hammer is buffered for the first time in the moving process of the movable plate 6; meanwhile, the moving ring 73 slides in the sliding groove 76 through the arranged sliding block 75, so that the stability of the moving ring 73 is improved, a pressure dead angle between the moving ring 73 and the guide rod 72 is prevented, the sliding of the moving ring 73 is limited, the moving ring 73 slides towards two sides, the moving ring 73 extrudes the second spring 74, when the second spring 74 extrudes to the limit, the second spring 74 rebounds and extends to drive the moving ring 73 to move reversely, the moving ring 73 drives the connecting rods 71 to rotate, the included angle between the two connecting rods 71 is reduced, the movable plate 6 reversely moves, a reverse acting force is formed on the water hammer, the acting force of the water hammer is counteracted for the second time, and the aim of removing the water hammer is fulfilled after the impact force of the water hammer is completely eliminated through repeated times of buffering. Through setting up elastic component 4 and buffer component 7 combined action, relapse a lot of and form reaction force to the water hammer, eliminate the water hammer, reduce the harm of water hammer to mine body 1 and valve, guarantee normal production, increase the security of mine pipeline water delivery.
In order to better eliminate the water hammer and reduce the acting force of the water hammer, the following relationship is satisfied between the rebound force F1 of the first spring 43 and the pitch t, the length L and the pressure F2 of the water hammer on the piston ring 3: F-F2 ═ k (L/t)2(ii) a k is an elastic coefficient, and the value range is 23-75%; F. f2 units N/m; t and L are in cm; the rebound force F3 of the second spring 74 satisfies the following relationship among the pitch t1, the length L1 and the pressure F4 of the water hammer against the movable plate 6: F3-F4 ═ k1 (L1/t1)2(ii) a k1 is the elastic coefficient, and the value range is 30-80%; f3, F4 units N/m; t1, L1 units are cm.
In order to better promote the mutual interaction between the elastic component 4 and the buffer component 7, increase the reaction force formed by the water hammer and reduce the damage of the water hammer, the elastic force F1 of the first spring 43 and the elastic force F3 of the second spring 74 are satisfied with the pressure F2 of the water hammer on the piston ring 3 and the pressure F4 of the water hammer on the movable plate 6, wherein F3+ F4< F1. F2/(F1 + F2); it is empirically known that the water hammer eliminating effect is desirable when the combined acting force of the first spring 43 and the second spring 74 is greater than the total acting force of the water hammer.
The device obtained by the technical scheme is a water hammer eliminating device for mine drainage, a reaction is generated on the formed water hammer when a valve is closed by arranging the elastic component to be matched with the rotating plate, and the elastic component is used for rebounding and backflushing to gradually offset the pressure of the water hammer for multiple times and reduce the impact force of the water hammer; through the box body symmetrically arranged on the side wall of the tank body, the buffer component and the movable plate which are arranged in the box body, the pressure of the water hammer is released and the movable plate, secondary buffering is carried out through the buffer component, the pressure of the water hammer on the side wall of the pipe body is offset, the cost of the water hammer is reduced, the pressure of the water hammer is reduced, the damage of the water hammer on the pipe body or a valve is reduced, normal production is ensured, and the safety of water delivery of a mine pipeline is improved; through the combined action of the elastic component and the buffer component, reaction force is repeatedly formed on the water hammer for many times, the water hammer is eliminated, the damage of the water hammer to a mine pipe body and a valve is reduced, normal production is ensured, and the safety of water delivery of a mine pipeline is improved; meanwhile, the moving ring slides in the sliding groove through the arranged sliding block, so that the stability of the moving ring is improved, a pressure dead angle formed by the moving ring and the guide rod is prevented, and the sliding of the moving ring is limited; the resilience force of the first spring, the pitch and the length of the first spring and the pressure of the water hammer on the piston ring are limited to meet the following relations, so that the acting force of the water hammer is reduced better, and the buffering effect on the water hammer is improved; satisfy between the elasticity of injecing first spring, second spring and the pressure of water hammer to the piston ring, water hammer to the pressure of fly leaf, better promotion elastic component and buffering subassembly interact jointly, increase the reaction force to the water hammer formation, reduce water hammer harm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A water hammer eliminating device for mine drainage comprises a pipe body (1) and a flange (2); the water pipe is characterized in that flanges (2) are arranged at the end parts of the pipe body (1), and the pipe body (1) is connected with a water pipe through the arranged flanges (2);
the upper side and the lower side of the pipe body (1) are both communicated with a box body (5), a movable plate (6) is arranged on one side, close to the pipe body (1), in the box body (5), the movable plate (6) is connected with a buffer assembly (7), and the buffer assembly (7) is connected with the inner wall of the box body (5);
the inner wall of body (1) is equipped with piston ring (3), and piston ring (3) center is equipped with rotor plate (10), and rotor plate (10) can be at piston ring (3) inside rotation, one side of piston ring (3) is connected with a plurality of elastic component (4), and is a plurality of the other end of elastic component (4) all is connected with connecting block (8), the other end of connecting block (8) with the interior wall connection of body (1).
2. The water hammer eliminating device for mine drainage according to claim 1, wherein a hollow cavity (13) is arranged between the inner wall and the outer wall of the piston ring (3), the piston ring (3) is connected with the inner wall of the pipe body (1) in a sealing and sliding manner through a rubber ring, a servo motor (9) is arranged inside the cavity (13), an output shaft of the servo motor (9) penetrates through the inner wall of the piston ring (3), an output shaft of the servo motor (9) is connected with a rotating shaft (11), the rotating shaft (11) is connected with the rotating plate (10), and the rotating shaft (11) is arranged at the center of the rotating plate (10) and drives the rotating plate (10) to rotate; the rotating plate (10) is of a circular structure, and when the rotating plate (10) and the piston ring (3) are closed, the rotating plate is used for blocking water flow.
3. The water hammer eliminating device for mine drainage is characterized in that the elastic component (4) is uniformly and symmetrically distributed on one side of the piston ring (3), the elastic component (4) comprises a sleeve (41), one end of the sleeve (41) is connected with the piston ring (3), a telescopic rod (42) is arranged inside the other end of the sleeve (41), and the other end of the telescopic rod (42) is connected with the connecting block (8); the outside cover of sleeve pipe (41) and telescopic link (42) is equipped with first spring (43), first spring (43) one end is connected with piston ring (3), and the other end is connected with connecting block (8).
4. The water hammer eliminating device for mine drainage according to claim 3, wherein the pipe wall of one end of the sleeve (41) close to the telescopic rod (42) is bent towards the inside of the sleeve (41) and is in a vertical structure with the pipe body (1) of the sleeve (41); one end of the telescopic rod (42) positioned in the sleeve (41) is bent towards the outside of the telescopic rod (42) by 90 degrees; the interior of the sleeve (41) and the exterior of the telescopic rod (42) form an anti-drop structure to prevent the telescopic rod (42) from slipping out of the sleeve (41).
5. The water hammer eliminating device for mine drainage according to claim 1, wherein one side of the movable plate (6) far away from the pipe body (1) is connected with a fixed block (12), the fixed block (12) is connected with a buffering assembly (7), the buffering assembly (7) comprises two connecting rods (71), the two connecting rods (71) are symmetrically arranged, one ends of the two connecting rods (71) are rotatably connected with the fixed block (12) through pin shafts, the other ends of the two connecting rods (71) are connected with moving rings (73), the moving rings (73) are sleeved on the guide rods (72), and the moving rings (73) are slidably connected with the guide rods (72).
6. The device for eliminating the water hammer for mine drainage is characterized in that the guide rod (72) is arranged at one end, far away from the movable plate (6), of the box body (5), both ends of the guide rod (72) are connected with the inner wall of the box body (5), a sliding groove (76) is formed in one side, far away from the movable plate (6), of the guide rod (72), a sliding block (75) is connected to the outer side wall, close to the sliding groove (76), of the moving ring (73), and the sliding block (75) and the sliding groove (76) are in matched sliding connection.
7. The water hammer eliminating device for mine drainage as claimed in claim 5, wherein a second spring (74) is sleeved on the guide rod (72) near the two ends, one end of the second spring (74) is connected with the moving ring (73), and the other end of the second spring (74) is connected with the inner wall of the box body (5).
8. A device for eliminating water hammer for mine drainage according to claim 5, characterized in that the connection and the moving ring (73) form a rotary connection through a pin arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551625.7A CN113107593B (en) | 2021-05-20 | 2021-05-20 | Water hammer eliminating device for mine drainage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551625.7A CN113107593B (en) | 2021-05-20 | 2021-05-20 | Water hammer eliminating device for mine drainage |
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| CN113107593A true CN113107593A (en) | 2021-07-13 |
| CN113107593B CN113107593B (en) | 2023-04-28 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204153310U (en) * | 2014-09-19 | 2015-02-11 | 宁波埃美柯铜阀门有限公司 | Water hammer-resistant valve |
| CN209509061U (en) * | 2018-11-13 | 2019-10-18 | 云南工商学院 | ' Water hammer ' arrester for water main of high-rise building |
| CN111963763A (en) * | 2020-08-14 | 2020-11-20 | 李杏 | Pipeline anti-impact valve and using method thereof |
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2021
- 2021-05-20 CN CN202110551625.7A patent/CN113107593B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204153310U (en) * | 2014-09-19 | 2015-02-11 | 宁波埃美柯铜阀门有限公司 | Water hammer-resistant valve |
| CN209509061U (en) * | 2018-11-13 | 2019-10-18 | 云南工商学院 | ' Water hammer ' arrester for water main of high-rise building |
| CN111963763A (en) * | 2020-08-14 | 2020-11-20 | 李杏 | Pipeline anti-impact valve and using method thereof |
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| CN113107593B (en) | 2023-04-28 |
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