Non-bag type intelligent water hammer protection tank

Abstract

The utility model relates to a non-bag type intelligent water hammer protection tank which comprises a tank body and a water inlet pipe arranged at the bottom of the tank body, a cylinder is horizontally and fixedly arranged on the tank body, deflation assemblies are arranged on the tank body and the cylinder, an inflation assembly is arranged on the tank body, and the inflation assembly is matched with the deflation assemblies. The tank body is provided with a deflation assembly, the deflation assembly is kept static, in the process that the inflation assembly completes inflation and resets, the deflation assembly conducts deflation on the tank body for a short time under the action of the inflation assembly so that the air pressure in the tank body can be kept in a proper state, and the tank body is further provided with a detection assembly which is used for controlling starting and stopping of the inflation assembly. The bag type air tank has the functions of absorbing water hammer waves and reducing system pressure fluctuation, and also can automatically inflate and deflate the interior of the tank body under the monitoring of the detection assembly, so that the air volume in the tank body is within a designed range value, and the intelligence is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water transportation, in particular to a non-bladder intelligent water hammer protection tank. Background Art

[0002] When the pipeline flow rate is adjusted too quickly or the pump is suddenly stopped, etc., resulting in a sudden drop in local pressure and the appearance of a cut-off cavity, the water columns at both ends of the cavity will quickly rush back after the reflection of the pressure wave, closing the cut-off cavity and causing a large water column impact to boost the pressure, which is called cut-off closing water hammer.

[0003] When unstable flow occurs in a long-distance pipeline due to changes in the working conditions of pump stations or valves, liquid column separation and cut-off closing water hammer phenomena may occur. On the one hand, the low pressure caused by liquid column separation may cause the pipeline to lose stability and deform (be crushed); on the other hand, the high pressure caused by cut-off closing water hammer may break the pipeline.

[0004] To prevent the above situations from occurring, a water hammer protection tank is usually set on the conveying pipeline. At present, air tanks are divided into two categories. One is non-bladder type, with gas on top and water below, and gas and water are in direct contact. Since the gas gradually dissolves in water, it needs to be frequently refilled with gas. And the gas dissolved in water will precipitate bubbles again after the accident power failure and the pressure drops, and the precipitated bubbles will collapse when the pressure rises, causing closing water hammer. The other is bladder type, with the gas enclosed between the bladder and the tank body, and water is inside the bladder. Gas and water are separated by the bladder and do not need to be frequently refilled with gas. However, the cost of the bladder body is high, and the quality is uneven. The bladder body often breaks during engineering applications and is difficult to detect, severely weakening the water hammer protection effect of the air tank, resulting in fast gas-water dissolution and frequent gas replenishment in the air tank, easily generating closing water hammer inside the air tank, and the high cost of the bladder body inside the air tank is easy to break. Content of the Utility Model

[0005] The purpose of the utility model is to provide a non-bladder intelligent water hammer protection tank to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The non-bladder intelligent water hammer protection tank includes a tank body and a water inlet pipe arranged at the bottom of the tank body. A cylinder is horizontally and fixedly arranged on the tank body, and an air release assembly is arranged on the tank body and the cylinder;

[0008] An air inflation assembly is arranged on the tank body. The air inflation assembly cooperates with the air release assembly. When the air inflation assembly inflates the tank body, the air release assembly remains stationary. During the process of the air inflation assembly resetting after inflation, the air release assembly will deflate the tank body for a short time under the action of the air inflation assembly to keep the air pressure inside the tank body in an appropriate state;

[0009] A detection component is also provided on the tank body. The detection component is electrically connected to the inflation component, and the detection component is used to control the start and stop of the inflation component.

[0010] As a further solution of the present utility model:

[0011] The inflation component includes a fixing frame fixedly arranged on the tank body and a cylinder body horizontally and fixedly arranged on the fixing frame. One end of the cylinder body is fixedly installed with a first one-way valve, and the end of the first one-way valve is communicated with the inside of the tank body;

[0012] A second one-way valve is fixedly installed on the side wall of the cylinder body. A piston is slidably arranged inside the cylinder body. A cylinder is also horizontally and fixedly arranged on the fixing frame. The output end of the cylinder penetrates through the other end of the cylinder body and is fixedly connected to one side of the piston.

[0013] As a further solution of the present utility model:

[0014] The inflation component further includes an L-shaped rod fixedly arranged on the output end of the cylinder. A trapezoidal groove is formed on the L-shaped rod.

[0015] As a further solution of the present utility model:

[0016] The air release component includes a sleeve rotatably sleeved on the cylinder. A sealing ring is fixedly arranged on the outer wall of the cylinder. The sealing ring is located between the cylinder and the sleeve and is in close contact with each other;

[0017] A first through hole is provided on the sleeve. A second through hole is provided on the sealing ring and is misaligned with the first through hole, and the positions of the first through hole and the second through hole correspond to each other;

[0018] An L-shaped air release hole is arranged inside the cylinder. One end of the L-shaped air release hole is communicated with the inside of the tank body, and the other end of the L-shaped air release hole is communicated with the second through hole.

[0019] As a further solution of the present utility model:

[0020] A blocking rod is horizontally and fixedly arranged on the tank body. A convex block is fixedly arranged on the sleeve. The convex block abuts against the blocking rod;

[0021] A fixing rod is horizontally and fixedly arranged on the tank body. A coil spring is sleeved outside the sleeve. One end of the coil spring is fixedly connected to the outer wall of the sleeve, and the other end of the coil spring is fixedly connected to the fixing rod;

[0022] The coil spring is in a compressed state. Under the action of the coil spring, the sleeve drives the convex block to closely adhere to the blocking rod.

[0023] As a further solution of the utility model:

[0024] One end of the sleeve is provided with an arc-shaped chute, a rotating shaft is horizontally rotatably arranged in the arc-shaped chute, a sector block is fixedly arranged on the outer wall of the rotating shaft, and the sector block corresponds to the position of the trapezoidal groove.

[0025] As a further solution of the utility model:

[0026] An annular convex column is fixedly arranged on the outer wall of the cylinder, an annular groove is arranged inside the sleeve, and the annular convex column is located inside the annular groove and is rotationally matched with each other.

[0027] As a further solution of the utility model:

[0028] The detection assembly includes a controller fixedly installed on the tank body and a pressure sensor arranged on the top of the tank body, and an electromagnetic liquid level sensor is installed on the side wall of the tank body;

[0029] Wherein, the air cylinder, the pressure sensor and the electromagnetic liquid level sensor are all electrically connected to the controller.

[0030] Compared with the prior art, the beneficial effects of the utility model are as follows: Compressed air is stored in the tank body, and the water in the system can directly enter the tank body through the water inlet pipe. When water hammer occurs, in the first stage of the water hammer, through the real-time monitoring of the detection assembly, the inflation assembly is started to inflate into the tank body to supplement the gas absorbed by the water body. In the second stage of the water hammer, when a negative pressure is formed in the water delivery pipe, the water body in the tank body will supply water to the pipeline. After stabilization, through the mutual cooperation of the inflation assembly and the deflation assembly, the tank body is deflated, so that the air pressure in the tank body is maintained appropriately.

[0031] In addition to the function of the bladder air tank in absorbing water hammer waves and reducing system pressure fluctuations, this application can also automatically inflate and deflate the tank body under the monitoring of the detection assembly, so that the air volume in the tank body is within the designed range value, improving the intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure.

[0033] Figure 2 It is a schematic diagram of another perspective of the overall structure.

[0034] Figure 3 It is a sectional view of the cylinder structure.

[0035] Figure 4 For Figure 3 The enlarged view at A in

[0036] Figure 5 It is a sectional view of a sleeve structure.

[0037] Figure 6 It is Figure 5 an enlarged view of part B in

[0038] Figure 7 It is a disassembled schematic diagram of a cylinder and a sleeve.

[0039] Figure 8 It is a truncated schematic diagram of an L-shaped rod.

[0040] Figure 9 It is a front view of the air release assembly and the L-shaped rod.

[0041] In the figure: 1. Tank body; 2. Water inlet pipe; 3. Cylinder; 301. L-shaped air vent; 302. Annular convex column; 4. Fixing bracket; 5. Cylindrical body; 6. First one-way valve; 7. Second one-way valve; 8. Piston; 9. Cylinder; 10. L-shaped rod; 1001. Trapezoidal groove; 11. Sleeve; 1101. First through hole; 1102. Annular groove; 12. Sealing ring; 1201. Second through hole; 13. Stop rod; 14. Convex block; 15. Fixed rod; 16. Coil spring; 17. Arc-shaped chute; 18. Rotating shaft; 19. Sector block; 20. Controller; 21. Pressure sensor; 22. Electromagnetic liquid level sensor. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In addition, an element in the present invention is referred to as being "fixed to" or "disposed on" another element, which can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0044] Please refer to Figures 1 to 9 , in the embodiment of the present invention, a non-sac type intelligent water hammer protection tank includes a tank body 1 and a water inlet pipe 2 provided at the bottom of the tank body 1. A cylinder 3 is horizontally and fixedly provided on the tank body 1, and an air release assembly is provided on the tank body 1 and the cylinder 3;

[0045] An inflation assembly is provided on the tank body 1. The inflation assembly cooperates with the deflation assembly. When the inflation assembly inflates the tank body 1, the deflation assembly remains stationary. During the process of the inflation assembly resetting after inflation, the deflation assembly will deflate the tank body 1 for a short time under the action of the inflation assembly to keep the air pressure inside the tank body 1 in an appropriate state;

[0046] A detection assembly is also provided on the tank body 1. The detection assembly is electrically connected to the inflation assembly, and the detection assembly is used to control the start and stop of the inflation assembly.

[0047] In this solution, compressed air is stored in the tank body 1. The water in the system can directly enter the tank body 1 through the water inlet pipe 2. When water hammer occurs, in the first stage of the water hammer, through the real-time monitoring of the detection assembly, the inflation assembly is started to inflate the tank body 1 to supplement the gas absorbed by the water body. In the second stage of the water hammer, when a negative pressure is formed in the water delivery pipe, the water body in the tank body 1 will supply water to the pipeline. After stabilization, the inflation assembly and the deflation assembly cooperate with each other to deflate the tank body 1, so that the air pressure in the tank body 1 is kept appropriate.

[0048] In addition to the function of the capsule-type air tank to absorb water hammer waves and reduce system pressure fluctuations, this application can also automatically inflate and deflate the tank body 1 under the monitoring of the detection assembly, so that the air volume in the tank body 1 is within the designed range value, improving the intelligence.

[0049] As a further solution of the present utility model, the inflation assembly includes a fixed frame 4 fixedly arranged on the tank body 1 and a cylinder body 5 horizontally and fixedly arranged on the fixed frame 4. One end of the cylinder body 5 is fixedly installed with a one-way valve 6, and the end of the one-way valve 6 is communicated with the inside of the tank body 1;

[0050] A two-way valve 7 is fixedly installed on the side wall of the cylinder body 5. A piston 8 is slidably arranged inside the cylinder body 5. A cylinder 9 is also horizontally and fixedly arranged on the fixed frame 4. The output end of the cylinder 9 penetrates through the other end of the cylinder body 5 and is fixedly connected to one side of the piston 8.

[0051] In this embodiment, since the output end of the cylinder 9 is fixedly connected to one side of the piston 8, when the output end of the cylinder 9 extends outwards, the piston 8 will slide in the cylinder body 5 towards the direction of the one-way valve 6. Also, due to the interaction of the one-way valve 6 and the two-way valve 7, the air in the cylinder body 5 is injected into the tank body 1 through the one-way valve 6, so that the gas volume in the tank body 1 increases;

[0052] Among them, the first one-way valve 6 is set to conduct unidirectionally from the cylinder body 5 to the tank body 1; the second one-way valve 7 is set to conduct unidirectionally into the cylinder body 5. Therefore, during the contraction of the output end of the air cylinder 9, the gas in the tank body 1 cannot enter the cylinder body 5 through the first one-way valve 6, and the outside air will be supplemented into the cylinder body 5 through the second one-way valve 7.

[0053] As a further solution of the present utility model, the inflation assembly further includes an L-shaped rod 10 fixedly arranged on the output end of the air cylinder 9, and a trapezoidal groove 1001 is formed on the L-shaped rod 10.

[0054] In this embodiment, since the L-shaped rod 10 is fixedly connected to the output end of the air cylinder 9, during the telescopic process of the output end of the air cylinder 9, the L-shaped rod 10 will move accordingly, so that the trapezoidal groove 1001 formed on the L-shaped rod 10 also moves accordingly.

[0055] As a further solution of the present utility model, the deflation assembly includes a sleeve 11 rotatably sleeved on the cylinder 3, a sealing ring 12 is fixedly arranged on the outer wall of the cylinder 3, and the sealing ring 12 is located between the cylinder 3 and the sleeve 11 and is in close contact with each other;

[0056] A first through hole 1101 is arranged on the sleeve 11, a second through hole 1201 which is offset from the first through hole 1101 is arranged on the sealing ring 12, and the positions of the first through hole 1101 and the second through hole 1201 correspond to each other;

[0057] An L-shaped air release hole 301 is arranged inside the cylinder 3, one end of the L-shaped air release hole 301 is communicated with the inside of the tank body 1, and the other end of the L-shaped air release hole 301 is communicated with the second through hole 1201.

[0058] In this embodiment, due to the presence of the sealing ring 12, the gap between the cylinder 3 and the sleeve 11 is filled to avoid air leakage;

[0059] Also because of the L-shaped air release hole 301 arranged inside the cylinder 3, both ends of the L-shaped air release hole 301 are respectively communicated with the inside of the tank body 1 and the second through hole 1201 arranged on the sealing ring 12, and the second through hole 1201 is in close contact with the inner wall of the sleeve 11, so the gas inside the tank body 1 cannot leak out;

[0060] Since the second through hole 1201 is offset from the first through hole 1101, and the positions of the first through hole 1101 and the second through hole 1201 correspond to each other, when the sleeve 11 rotates clockwise by a certain angle and the first through hole 1101 and the second through hole 1201 are communicated with each other, the gas inside the tank body 1 will be discharged through the L-shaped air release hole 301, the second through hole 1201 and the first through hole 1101.

[0061] As a further solution of the utility model, a stop rod 13 is horizontally and fixedly arranged on the tank body 1, a convex block 14 is fixedly arranged on the sleeve 11, and the convex block 14 abuts against the stop rod 13;

[0062] A fixing rod 15 is horizontally and fixedly arranged on the tank body 1, a coil spring 16 is sleeved outside the sleeve 11, one end of the coil spring 16 is fixedly connected with the outer wall of the sleeve 11, and the other end of the coil spring 16 is fixedly connected with the fixing rod 15;

[0063] The coil spring 16 is in a compressed state, and under the action of the coil spring 16, the sleeve 11 drives the convex block 14 to closely adhere to the stop rod 13.

[0064] In this embodiment, due to the mutual cooperation of the fixing rod 15, the coil spring 16 and the sleeve 11, the sleeve 11 always has a tendency to rotate counterclockwise without external force. Therefore, during the clockwise rotation of the sleeve 11, it will always overcome the elastic force of the coil spring 16;

[0065] Moreover, due to the interaction between the convex block 14 and the stop rod 13, the counterclockwise rotation of the sleeve 11 is limited, so that the sleeve 11 remains stationary.

[0066] As a further solution of the utility model, an arc-shaped chute 17 is opened at one end of the sleeve 11, a rotating shaft 18 is horizontally rotatably arranged in the arc-shaped chute 17, a sector block 19 is fixedly arranged on the outer wall of the rotating shaft 18, and the sector block 19 corresponds to the position of the trapezoidal groove 1001.

[0067] In this embodiment, since the sector block 19 corresponds to the position of the trapezoidal groove 1001, during the process of the L-shaped rod 10 moving towards the sector block 19 following the output end of the cylinder 9, the end of the L-shaped rod 10 will first push the sector block 19 to rotate clockwise inside the arc-shaped chute 17. Then, the bottom end of the sector block 19 will slide relative to the top surface of the L-shaped rod 10. When the trapezoidal groove 1001 is located below the sector block 19, the sector block 19 will enter the trapezoidal groove 1001, and the sector block 19 will rotate counterclockwise to reset due to gravity. Then, when the L-shaped rod 10 continues to move, the sector block 19 will cooperate with the inclined surface of the trapezoidal groove 1001 to rotate clockwise again. The sector block 19 will slide out of the trapezoidal groove 1001 and the bottom end will slide relative to the top surface of the L-shaped rod 10. During the above process, only the sector block 19 rotates and the sleeve 11 does not rotate;

[0068] When the L-shaped rod 10 moves back, the sector block 19 will first slide into the trapezoidal groove 1001, and then the side surface of the sector block 19 will abut against the straight surface of the trapezoidal groove 1001. The straight surface of the trapezoidal groove 1001 will push the arc-shaped sliding groove 17 through the sector block 19, so that the sleeve 11 rotates clockwise, causing the first through hole 1101 on the sleeve 11 to communicate with the second through hole 1201 and the L-shaped air vent hole 301, thereby deflating the tank body 1.

[0069] When the sleeve 11 rotates to the preset position, the trapezoidal groove 1001 will separate from the sector block 19. At this time, under the action of the coil spring 16, the sleeve 11 is driven to rotate counterclockwise and reset, so that the first through hole 1101 and the second through hole 1201 are misaligned again.

[0070] As a further solution of the present invention, an annular convex column 302 is fixedly arranged on the outer wall of the cylinder 3, an annular groove 1102 is arranged inside the sleeve 11, and the annular convex column 302 is located inside the annular groove 1102 and is rotationally matched with each other.

[0071] In this embodiment, since the annular convex column 302 is located inside the annular groove 1102 and is rotationally matched with each other, the sleeve 11 is rotatably arranged outside the cylinder 3.

[0072] As a further solution of the present invention, the detection assembly includes a controller 20 fixedly installed on the tank body 1 and a pressure sensor 21 arranged on the top of the tank body 1, and an electromagnetic liquid level sensor 22 is installed on the side wall of the tank body 1;

[0073] Among them, the air cylinder 9, the pressure sensor 21 and the electromagnetic liquid level sensor 22 are all electrically connected to the controller 20.

[0074] In this embodiment, the pressure sensor 21 and the electromagnetic liquid level sensor 22 are used to monitor the air pressure and liquid level height in the tank body 1 in real time, and then the data is transmitted to the controller 20 through an electric signal. The controller 20 will analyze the data and then control the start and stop of the air cylinder 9 through an electric signal.

[0075] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0076] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bladder-free intelligent water hammer protection tank, comprising a tank body (1) and a water inlet pipe (2) arranged at the bottom of the tank body (1), characterized in that: A cylinder (3) is horizontally fixedly arranged on the tank body (1), and a deflation assembly is arranged on the tank body (1) and the cylinder (3); The tank body (1) is provided with an inflating component, and the inflating component cooperates with the deflation component. When the inflating component inflates the tank body (1), the deflation component remains stationary. When the inflating component is completed and the deflation component is reset, the deflation component will deflate the tank body (1) for a short time under the action of the inflating component, so as to keep the air pressure inside the tank body (1) in an appropriate state. The tank body (1) is also provided with a detection component, the detection component is electrically connected to the inflation component, and the detection component is used to control the start and stop of the inflation component.

2. The non-bladder intelligent water hammer protection tank according to claim 1 is characterized in that: The inflation assembly comprises a fixing frame (4) fixedly arranged on the tank body (1) and a cylinder body (5) fixedly arranged horizontally on the fixing frame (4); a first one-way valve (6) is fixedly installed on one end of the cylinder body (5); and an end of the first one-way valve (6) is connected to the interior of the tank body (1); A No. 2 one-way valve (7) is fixedly mounted on the side wall of the cylinder (5), a piston (8) is slidably mounted inside the cylinder (5), and a cylinder (9) is also horizontally fixedly mounted on the fixed frame (4), the output end of the cylinder (9) passes through the other end of the cylinder (5) and is fixedly connected to one side of the piston (8).

3. The non-bladder type intelligent water hammer protection tank according to claim 2 is characterized in that: The inflation assembly further comprises an L-shaped rod (10) fixedly arranged on the output end of the cylinder (9), and a trapezoidal groove (1001) is provided on the L-shaped rod (10).

4. The non-bladder type intelligent water hammer protection tank according to claim 3 is characterized in that: The deflation assembly comprises a sleeve (11) rotatably sleeved on the cylinder (3); a sealing ring (12) is fixedly provided on the outer wall of the cylinder (3); the sealing ring (12) is located between the cylinder (3) and the sleeve (11) and fits with each other; The sleeve (11) is provided with a first through hole (1101), the sealing ring (12) is provided with a second through hole (1201) which is offset from the first through hole (1101), and the positions of the first through hole (1101) and the second through hole (1201) correspond to each other; An L-shaped air release hole (301) is provided inside the cylinder (3), one end of the L-shaped air release hole (301) is connected to the inside of the tank body (1), and the other end of the L-shaped air release hole (301) is connected to the No. 2 through hole (1201).

5. The non-bladder type intelligent water hammer protection tank according to claim 4 is characterized in that: A blocking rod (13) is fixedly arranged horizontally on the tank body (1), and a convex block (14) is fixedly arranged on the sleeve (11), wherein the convex block (14) abuts against the blocking rod (13); A fixing rod (15) is fixedly arranged horizontally on the tank body (1), a coil spring (16) is sleeved on the outside of the sleeve (11), one end of the coil spring (16) is fixedly connected to the outer wall of the sleeve (11), and the other end of the coil spring (16) is fixedly connected to the fixing rod (15); The coil spring (16) is in a compressed state, and under the action of the coil spring (16), the sleeve (11) drives the protrusion (14) to be in close contact with the blocking rod (13).

6. The non-bladder type intelligent water hammer protection tank according to claim 4 is characterized in that: An arc-shaped slide groove (17) is provided at one end of the sleeve (11), a rotating shaft (18) is horizontally rotatably arranged in the arc-shaped slide groove (17), a sector block (19) is fixedly arranged on the outer wall of the rotating shaft (18), and the sector block (19) corresponds to the position of the trapezoidal groove (1001).

7. The non-bladder type intelligent water hammer protection tank according to claim 4 is characterized in that: An annular boss (302) is fixedly provided on the outer wall of the cylinder (3), an annular groove (1102) is provided inside the sleeve (11), and the annular boss (302) is located inside the annular groove (1102) and rotates in cooperation with each other.

8. The non-bladder type intelligent water hammer protection tank according to claim 2 is characterized in that: The detection assembly comprises a controller (20) fixedly mounted on the tank body (1) and a pressure sensor (21) arranged on the top of the tank body (1); an electromagnetic liquid level sensor (22) is installed on the side wall of the tank body (1); Wherein, the cylinder (9), the pressure sensor (21) and the electromagnetic liquid level sensor (22) are all electrically connected to the controller (20).

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