CN215442165U - Water hammer energy eliminating device for high-rise water raising pipe - Google Patents

Abstract

A water hammer energy eliminating device for a high-rise water raising pipe is characterized in that a check valve and a flow assisting air pipe are respectively connected to the outlet of the high-rise water raising pipe, so that water flow is sent downwards into a water supply tank through the water raising pipe and the check valve; when stopping sending water, the export of lifting pipe is closed to the check valve, and in a small amount of air got into the lifting pipe through flow-assistant air pipe, but air flow-assistant volume is not enough to supply rivers down the backward flow, let and form half vacuum state in the lifting pipe, in order to raise the aquatic products in the lifting pipe and produce upwards suction, and then slow down the falling velocity and the striking energy of the inside rivers of lifting pipe, in order to eliminate the water hammer phenomenon, can avoid the powerful impact of rivers to cause vibration noise, can protect whole pipeline and component, and reduce equipment cost.

Description

Water hammer energy eliminating device for high-rise water raising pipe

Technical Field

The utility model relates to a water hammer energy eliminating device for a high-rise water raising pipe, in particular to a water hammer energy eliminating device which is provided with a check valve and a flow-assisting air pipe aiming at an outlet of a high-rise water raising pipe.

Background

Urban land is limited, expensive, and heavily populated, so buildings are moving toward higher floors and the associated water supply line equipment must be considered.

In a typical water supply pipeline apparatus for a high building, referring to fig. 1 and 2, a water reservoir 90 is essentially installed at the bottom floor of the high building, a water supply tank 91 is installed at the top floor of the high building, two sets of water pumping pipelines 92 are connected to the water reservoir 90 for alternate use, each of the two sets of water pumping pipelines 92 at least includes a pump 93, a check valve 94 and a control valve 95, and is connected to a water pumping pipe 96 of the high building by a three-way joint 98, a single pump 93 pumps water through the single set of water pumping pipeline 92 and the control valve 95, and the pumped water is then pumped up into the water supply tank 91 through the inlet at the bottom end of the water pumping pipe 96 of the high building, and then is supplied to residents of each floor through a water distribution pipeline 97.

The single set of pumping pipes 92 controls the start of the pump 93 and the control valve 95 to pump the water flow (see the solid arrow shown in fig. 1) upward into the water supply tank 91 through the pumping pipe 96, and when the water supply tank 91 reaches a set water level, the pump 93 is automatically controlled to be closed, and at this time, the water flow inside the pumping pipe 96 with a height of several tens of meters is impacted downward due to the influence of gravity, but the water hammer absorber 99 cannot completely and effectively absorb the water hammer force, so that the water flow (see the dotted arrow shown in fig. 1) still impacts the check valve 94 downward, which causes severe impact and noise, and causes the pumping pipe 92 and the pumping pipe 96 to strongly vibrate, further rubs against the wall surface of the building, thereby causing severe noise and easily damaging the pipes and their components. Therefore, how to solve the above problems is an urgent issue to be studied by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a water hammer energy eliminating device for a high-rise water raising pipe. The utility model has the beneficial effects that: high building lifting pipe is when stopping sending water, utilize the check valve to close the export of lifting pipe, and in a small amount of air gets into the lifting pipe through flow-assistant air pipe, but air flow-assistant volume is not enough to supply rivers backward, let and form half vacuum state in the lifting pipe, with the aquatic products to in the lifting pipe produces suction upwards, and then the falling speed and the striking energy of slowing down the inside rivers of lifting pipe, in order to eliminate the water hammer phenomenon, can avoid the powerful impact of rivers to cause vibration noise, can protect whole pipeline and component, and reduce equipment cost, and service life is prolonged.

In order to achieve the purpose, the water hammer energy eliminating device for the water pumping pipe of the high building is characterized in that a water supply tank at the top layer of the high building is connected with a water pumping pipe, a water storage tank at the bottom layer of the high building is connected with a first water pumping pipe and a second water pumping pipe, the bottom end of the first water pumping pipe is connected with a first pump, the bottom end of the second water pumping pipe is connected with a second pump, the top ends of the first water pumping pipe and the second water pumping pipe are connected with an inlet at the bottom end of the water pumping pipe, and the first pump or the second pump is started to pump water flow so that the water flow is upwards sent into the water supply tank through an outlet at the top end of the water pumping pipe; the water hammer energy eliminating device is characterized in that a check valve is connected to an outlet of the water raising pipe, a flow assisting air pipe is connected to a position, close to the check valve, beside the water raising pipe, and the flow assisting air pipe is used for communicating air outwards; when the pumping water flow is started, the water flow is downwards conveyed into the water supply tank through the outlet of the water lifting pipe and the check valve; and when stopping drawing water, the export of this lifting pipe is closed to this check valve, and in external air got into this lifting pipe through this class of flowing assistant air hose, and air flow capacity was not enough to supply rivers down backward flow, let and form half vacuum state in this lifting pipe to water in the lifting pipe produces suction upwards, and then slows down the falling speed and the striking energy of the inside rivers of lifting pipe.

In the above-mentioned water hammer energy eliminating device for a water riser of a high building, the tube diameter of the flow-assisting air tube is set to be less than one fourth of the tube diameter of the water riser.

In the device for eliminating water hammer energy of the water lift pipe of the high-rise building, the flow-assisting air pipe is connected with a flow valve, and the flow valve is used for adjusting the air flow assisting amount.

In the aforementioned water hammer energy eliminator for water riser of a high-rise building, the outlet of the water riser, the check valve, the flow-assisting air pipe and the flow valve are located in the water supply tank.

Drawings

Fig. 1 is a schematic diagram of a prior art water supply line installation for a tall building.

Fig. 2 is a perspective view of the connection part of the water pumping pipeline and the water raising pipe of the prior high-rise building.

Fig. 3 is a schematic diagram of a water supply line installation for a high-rise building of the present invention.

Fig. 4 is a perspective view of the water hammer energy eliminating device for the water riser of the high-rise building of the present invention.

Fig. 5 is a sectional view of the water hammer energy eliminating device for the water riser of the high-rise building of the present invention.

Fig. 6 is an operation diagram of the water supply line equipment for a high-rise building according to the first usage state of the present invention.

Fig. 7 is an operation diagram of the water supply line equipment for the high-rise building according to the second usage state of the present invention.

Fig. 8 is a diagram showing the operation of the water hammer energy eliminating device for the water riser of the high-rise building in a water supply state.

Fig. 9 is a diagram showing the operation of the water hammer energy eliminating device for the water riser of the high-rise building in a state of stopping water supply.

Fig. 10 is a plan view of the water hammer energy eliminating device for the riser of the high-rise building of the present invention in a state of stopping water supply.

Description of the reference numerals

90. Water reservoir

91. Water supply pool

92. Water pumping pipeline

93. Pump and method of operating the same

94. Check valve

95. Control valve

96. Water lifting pipe

97. Water distribution pipeline

98. Three-way joint

99. Water hammer absorber

1. Water supply pool

2. Water reservoir

3. Water lifting pipe

31. Check valve

311. Valve body

312. Valve disk

32. Flow-aiding air pipe

33. Flow valve

331. Valve body

332. Valve ball

333. Valve rod

334. Through hole

335. Operating rod

34. Inlet port

35. An outlet

4. Water distribution pipeline

5. First pumping pipe

51. First pump

52. Shockproof tube

6. Second pumping pipe

61. Second pump

62. Shockproof tube

7. Three-way ball valve

71. First interface

72. Second interface

73. And a third interface.

Detailed Description

To achieve the above objects, the present invention adopts technical means and effects, which are described below with reference to the accompanying drawings, wherein the technical means and effects are as follows:

first, referring to fig. 3 to 7, it is clearly seen that the water hammer energy eliminating apparatus of the present invention is applied to a water supply pipeline apparatus for high-rise buildings, the water supply tank 1 on the top floor of the high building is connected with a water pumping pipe 3 and a water distribution pipeline 4, the water storage tank 2 on the bottom floor of the high building is connected with a first water pumping pipe 5 and a second water pumping pipe 6 to form a water pumping pipeline, the bottom end of the first pumping pipe 5 is connected with a first pump 51 and a shock-proof pipe 52, the bottom end of the second pumping pipe 6 is connected with a second pump 61 and a shock-proof pipe 62, the top ends of the first pumping pipe 5 and the second pumping pipe 6 are connected to the inlet 34 at the bottom end of the lift pipe 3, and the first pump 51 and the second pump 61 are set to be in an opposite on-off electrical control mode to automatically start the first pump 51 or the second pump 61 to pump water flow, so that the water flow passes through the outlet 35 at the top end of the water lifting pipe 3 and then is sent into the water supply tank 1.

In the water supply pipeline equipment of a high building, an electric three-way ball valve 7 is connected between the water lifting pipe 3, the first water pumping pipe 5 and the second water pumping pipe 6, the three-way ball valve 7 has a first connector 71, a second connector 72 and a third connector 73, the first connector 71 and the second connector 72 are respectively connected to the first water pumping pipe 5 and the second water pumping pipe 6, and the third connector 73 is connected to the inlet 34 at the bottom end of the water lifting pipe 3.

Referring to fig. 6, the first pump 51 and the second pump 61 are alternately started to pump water in sequence, when the first pump 51 is started to be closed finally, the three-way ball valve 7 controls the first water pumping pipe 5 to be communicated with the lift pipe 3, and the second water pumping pipe 6 and the second pump 61 are closed relatively, and the first pump 51 pumps water flow (see the solid arrow shown in fig. 6) upwards through the first water pumping pipe 5 and the three-way ball valve 7, so that the water flow upwards passes through the lift pipe 3 and is sent into the water supply tank 1. When the water supply tank 1 reaches a predetermined water level, a liquid level sensor (not shown) is used for detecting, and the first pump 51 is automatically controlled to be turned off in an electrical control mode to stop pumping water, at this time, the water flow in the water pumping pipe 3 flows downwards through the three-way ball valve 7, the first water pumping pipe 5 and the first pump 51 as shown by a dotted arrow in fig. 6 due to the gravity, and then flows into the water reservoir 2.

When the next water pumping is performed, the second water pumping pipe 6 is automatically started, and in the process from the start of the second pump 61 to the final closing of the second pump, the three-way ball valve 7 controls the second water pumping pipe 6 to be communicated with the water pumping pipe 3, and the first water pumping pipe 5 and the first pump 51 are relatively closed, and the second pump 61 pumps water flow (refer to the solid arrow shown in fig. 7) upwards through the second water pumping pipe 6 and the three-way ball valve 7, so that the water flow upwards passes through the water pumping pipe 3 and is sent into the water supply tank 1. When the water supply tank 1 reaches a predetermined water level, the water supply is stopped by the second pump 61 which is detected by a liquid level sensor (not shown) and automatically controlled to close the second pumping pipe 6 in an electrical control mode, and at this time, the water flow in the pumping pipe 3 flows downwards through the three-way ball valve 7, the second pumping pipe 6 and the second pump 61 and then flows into the reservoir 2 due to the gravity action as shown by the dotted arrow in fig. 7.

In the water hammer energy eliminating device of the present invention, the outlet 35 of the lift pipe 3 is connected with a check valve 31, the check valve 31 is pivoted with a normally closed or spring-closed valve disc 312 in a valve body 311, a flow-assisting air pipe 32 is connected to a position close to the check valve 31 beside the lift pipe 3, the outlet 35 of the lift pipe 3, the check valve 31 and the flow-assisting air pipe 32 are located in the water supply tank 1, the flow-assisting air pipe 32 is used for communicating air outwards, the pipe diameter of the flow-assisting air pipe 32 is set to be less than one fourth of the pipe diameter of the lift pipe 3, the flow-assisting air pipe 32 is connected with a flow valve 33, the flow valve 33 is provided with a valve ball 332 and a valve rod 333 in the valve body 331, and the valve rod 333, the valve ball 332 and the through hole 334 are rotated by matching with an operating rod 335 to adjust the proper air flow assisting amount.

Referring to fig. 6 to 8, when the first pump 51 or the second pump 61 is activated to pump water, the water flows through the outlet 35 of the lift pipe 3 and the check valve 31 to be fed down into the feed tank 1. When the water supply tank 1 reaches a predetermined water level, a liquid level sensor (not shown) is used for detecting, and the first pump 51 or the second pump 61 is automatically controlled to be closed in an electrical control mode to stop pumping water, at this time, the check valve 31 closes the outlet 35 (see fig. 9 and 10) of the water lifting pipe 3, and when the water flow of the water lifting pipe 3 starts to flow back downwards, a small amount of air (see a dotted arrow shown in fig. 10) relatively outside is sucked through the flow-assisting air pipe 32 and the flow valve 33 to enter the water lifting pipe 3, but the air flow assisting quantity is not enough to supply the water flow to flow back downwards, so that a semi-vacuum state is formed in the water lifting pipe 3 to generate an upward suction force (see a hollow arrow shown in fig. 10) to the water flow inside the water lifting pipe 3, thereby effectively slowing down the falling speed and the impact energy of the water flow inside the water lifting pipe 3, eliminating the water hammer phenomenon, and avoiding the vibration noise caused by the strong impact of the water flow, the whole pipeline and the components thereof can be protected, the equipment cost is reduced, and the service life is prolonged.

The above-described embodiments are intended to be illustrative, rather than restrictive, and various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (4)

1. A water hammer energy eliminating device for a water pumping pipe of a high building is characterized in that a water supply tank at the top layer of the high building is connected with a water pumping pipe, a water storage tank at the bottom layer of the high building is connected with a first water pumping pipe and a second water pumping pipe, the bottom end of the first water pumping pipe is connected with a first pump, the bottom end of the second water pumping pipe is connected with a second pump, the top ends of the first water pumping pipe and the second water pumping pipe are connected with an inlet at the bottom end of the water pumping pipe, the first pump or the second pump is started to pump water flow, and the water flow is upwards sent into the water supply tank through an outlet at the top end of the water pumping pipe; the method is characterized in that:

the water hammer energy eliminating device is connected with a check valve at the outlet of the water raising pipe, a flow assisting air pipe is connected to the position, close to the check valve, of the side of the water raising pipe, and the flow assisting air pipe is used for communicating air outwards.

2. The apparatus of claim 1, wherein the flow-assisting air tube has a tube diameter less than one quarter of the tube diameter of the lift tube.

3. The apparatus of claim 1 wherein a flow valve is connected to the flow-assisting air pipe for adjusting the air flow-assisting amount.

4. The apparatus of claim 3 wherein the outlet of the riser, the check valve, the flow-assisting air tube and the flow valve are located in the feed water basin.

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