TWI808378B - High-rise water pipe water hammer energy elimination device - Google Patents

Abstract

A water hammer energy elimination device for high-rise water pipes. A check valve and a flow-assisting air pipe are respectively connected to the outlet of the high-rise water pipe, so that the water flow is sent down into the water supply pool through the water pipe and the check valve; when the water supply is stopped, the check valve closes the outlet of the water pipe, and a small amount of air enters the water pipe through the air pipe. Furthermore, the descending speed and impact energy of the water flow inside the lifting pipe can be slowed down to eliminate the phenomenon of water hammer, which can avoid vibration and noise caused by the strong impact of the water flow, protect the overall pipeline and its components, and reduce equipment costs.

Description

High-rise water pipe water hammer energy elimination device

The invention relates to a water hammer energy elimination device for a high-rise water pipe, in particular to a water hammer energy elimination device equipped with a check valve and a flow-assisting air pipe for the outlet of a high-rise water pipe.

At present, the land in the city is limited, the cost is high, and the population is concentrated. Therefore, the buildings are all developed towards high floors, and the relevant water supply pipeline equipment must be considered.

In general high-rise water supply pipeline equipment, as shown in the first and second figures, a water reservoir 90 must be installed on the ground floor of a high-rise building, and a water supply tank 91 must be installed on the top floor of a high-rise building. Two sets of alternately used water supply pipelines 92 are connected to the water storage tank 90. Each of the two sets of water supply pipelines 92 contains at least a pump 93, a check valve 94 and a control valve 95, and is connected to a high-rise water pipe 96 with a three-way joint 98. A single pump 93 is used to pump water through a single set. The pumping pipeline 92 and the control valve 95 are sent upwards into the water supply tank 91 through the entrance of the bottom end of the high-rise water pipe 96, and then are supplied downwards to the households on each floor through the water distribution pipeline 97.

The above-mentioned single set of water pumping pipeline 92 is controlled to activate the pump 93 and the control valve 95 to pump the water flow (see the solid arrow shown in the first figure) into the water supply tank 91 through the pumping pipe 96. When the water supply tank 91 reaches the set water level, the pump 93 is automatically controlled to be turned off. At this time, the water flow inside the pumping pipe 96 at a height of tens of meters is impacted downwards 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 the first figure) will still hit the check valve 94 downwards, causing violent collision and noise, and causing strong vibrations of the pumping pipe 92 and the pumping pipe 96. Therefore, how to solve the above-mentioned problems is the subject that relevant industry players in this industry are eager to study.

The main purpose of the present invention is to use the check valve to close the outlet of the water pipe in a high-rise building when the water supply is stopped, and a small amount of air enters the water pipe through the flow-assisted air pipe, but the air-assisted flow is not enough to supply the water to flow back downwards, so that a semi-vacuum state is formed in the water pipe to generate upward suction for the water in the water pipe, and then slow down the falling speed and impact energy of the water flow inside the pipe. And reduce equipment costs, improve service life.

In order to achieve the above-mentioned purpose, the high-rise water hammer energy elimination device of the high-rise water pipe of the present invention, the water supply tank on the top floor of the high-rise building is connected to a water-lift pipe, and the reservoir on the bottom floor of the high-rise building is connected to a first water pipe and a second water pipe. The bottom end of the first water pipe is connected to a first pump, and the bottom end of the second water pipe is connected to a second pump. The water flows upwards and is sent into the water supply pool through the outlet at the top of the water pipe; the feature is that the water hammer energy elimination device is attached to the water pipe There is a check valve connected to the outlet, and a flow-aiding air pipe is connected to the side of the pumping pipe close to the check valve, and the flow-aiding air pipe is used to connect air outwards; A semi-vacuum state is formed in the water pipe to generate an upward suction force on the water in the water pipe, thereby slowing down the descending speed and impact energy of the water flow inside the water pipe.

In the aforementioned high-rise water pipe water hammer energy elimination device, the diameter of the flow-assisting air pipe is set to be less than a quarter of the pipe diameter of the water pipe.

In the aforementioned water hammer energy elimination device for water pipes in high-rise buildings, the flow-assisted air pipe is connected with a flow valve, and the flow valve is used to adjust the flow of air-assisted flow.

In the aforementioned high-rise water pipe water hammer energy elimination device, wherein the outlet of the water pipe, the check valve, the flow-assisting air pipe and the flow valve are located in the water supply tank.

【this invention】

1: water supply pool

2: Reservoir

3: Lifting pipe

31: check valve

311: valve body

312: valve disc

32: Assist air tube

33: Flow valve

331: valve body

332: valve ball

333: valve stem

334: through hole

335: joystick

34: Entrance

35: export

4: Water distribution pipeline

5: The first suction pipe

51:First pump

52: Anti-vibration tube

6: Second suction pipe

61:Second pump

62: Anti-vibration tube

7: Three-way ball valve

71: The first interface

72: Second interface

73: The third interface

【Prior technology】

90: Cistern

91: water supply pool

92: Pumping pipeline

93: pump

94: check valve

95: Control valve

96: water pipe

97: Water distribution pipeline

98: Tee joint

99: Water hammer absorber

The first picture is a schematic diagram of the water supply pipeline equipment commonly used in high-rise buildings.

The second figure is a three-dimensional view of the junction of the pumping pipe and the pumping pipeline of a commonly used high-rise building.

The third figure is a schematic diagram of the high-rise water supply pipeline equipment of the present invention.

Figure 4 is a three-dimensional view of the water hammer energy elimination device for the water pipe of a high-rise building according to the present invention.

The fifth figure is a cross-sectional view of the water hammer energy elimination device for the water pipe of the high-rise water pipe of the present invention.

Figure 6 is an action diagram of the first use state of the high-rise water supply pipeline equipment of the present invention.

The seventh figure is an action figure of the second use state of the high-rise water supply pipeline equipment of the present invention.

The eighth figure is the operation diagram of the water hammer energy elimination device for the water pipe of the high-rise water pipe of the present invention in the water supply state.

Figure 9 is an action diagram of the water hammer energy elimination device for the water pipe of a high-rise building of the present invention in the state of stopping water supply.

Figure 10 is a top view of the device for eliminating water hammer energy of a high-rise water pipe of the present invention in a state of stopping water supply.

Relevant present invention is to achieve above-mentioned purpose, adopts technical means and effect thereof, enumerates feasible embodiment hereby, and cooperates drawings to explain as follows:

First of all, please refer to the third to seventh figures. It can be clearly seen from the figures that the water hammer energy elimination device of the present invention is suitable for high-rise water supply pipeline equipment. The water supply tank 1 on the top floor of the high-rise building is connected to a water supply pipe 3 and a water distribution pipeline 4, and the reservoir 2 on the bottom floor of the high-rise building is connected to a first water suction pipe 5 and a second water suction pipe 6 to form a water suction pipeline. The first pump 51 and the second pump 61 are connected to a second pump 61 and an anti-vibration pipe 62, and the tops of the first suction pipe 5 and the second suction pipe 6 are connected to the inlet 34 at the bottom of the water pipe 3, and the first pump 51 and the second pump 61 are set in opposite open and close electrical control modes, so as to automatically start the first pump 51 or the second pump 61 to pump water, so that the water flows upward through the outlet 35 at the top of the water pipe 3, and then sent down into the water supply tank 1.

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

Please refer to the sixth figure, the first pump 51 and the second pump 61 are set to alternately start pumping water in sequence. When the first pump 51 starts pumping water and finally closes the process, the three-way ball valve 7 controls the first water suction pipe 5 to maintain communication with the water pipe 3, and relatively closes the second water suction pipe 6 and the second pump 61. The flow goes upwards and is sent into the water supply tank 1 through the water raising pipe 3 . When the water supply tank 1 reaches the predetermined water level, the liquid level detector (not shown) is used to detect, and the first pump 51 is automatically controlled to stop pumping in an electric control mode.

When pumping water next time, the second pumping pipe 6 is automatically enabled, and during the process from the second pump 61 starting to pumping to the last closing, the three-way ball valve 7 controls the second pumping pipe 6 to keep in communication with the water pipe 3, and relatively closes the first water pipe 5 and the first pump 51, and the second pump 61 pumps water (see the solid arrow shown in the seventh figure) upwards through the second suction pipe 6 and the three-way ball valve 7, so that the water flows upwards through the watering pipe 3 into the feed tank 1. And when the water supply pool 1 reaches the predetermined water level, a liquid level detector (not shown) is used to detect, and the second pump 61 that closes the second water suction pipe 6 is automatically controlled to stop pumping in an electric control mode. At this time, The water flow inside the pumping pipe 3 is due to gravity, and as shown by the dotted arrow in the seventh figure, the water flow flows down through the three-way ball valve 7, the second suction pipe 6 and the second pump 61, and then flows into the reservoir 2.

The main feature of the water hammer energy elimination device of the present invention is that the outlet 35 of the lifting pipe 3 is connected with a check valve 31, and the check valve 31 is pivotally connected with a valve disc 312 which is normally closed or closed with a spring in the valve body 311, and a flow-assisting air pipe 32 is connected to the side of the raising pipe 3 close to the check valve 31, and the outlet 35 of the raising pipe 3, the check valve 31 and the flow-aiding air pipe 32 are located in the water supply tank 1, and the flow-aiding air pipe 32 It is used to connect air outwards, and the diameter of the flow-aiding air pipe 32 is set to be less than a quarter of the pipe diameter of the water pipe 3. The flow-aiding air pipe 32 is connected with a flow valve 33. The flow valve 33 is provided with a valve ball 332 and a valve stem 333 in the valve body 331, and cooperates with the operating rod 335 to rotate the angular positions of the valve stem 333, valve ball 332 and through hole 334 to adjust the appropriate air assist flow.

Please refer to the sixth figure to the eighth figure, when the first pump 51 or the second pump 61 is activated to pump water, the water passes through the outlet 35 of the lifting pipe 3 and the check valve 31, and is sent downward into the water supply tank 1. When the water supply tank 1 reaches a predetermined water level, a liquid level detector (not shown) is used to detect it, and the first pump 51 or the second pump 61 is automatically controlled by an electric control method to stop pumping water. At this time, the check valve 31 closes the outlet 35 of the water pipe 3 (see Figures 9 and 10). , so as to enter the water lift pipe 3, but the air assist flow is not enough to supply the water flow back down, and let the water lift pipe 3 A semi-vacuum state is formed inside to generate an upward suction force on the water flow inside the lift pipe 3 (see the hollow arrow shown in the tenth figure), thereby effectively slowing down the falling speed and impact energy of the water flow inside the lift pipe 3, so as to eliminate the water hammer phenomenon, avoid vibration and noise caused by the strong impact of the water flow, protect the overall pipeline and its components, reduce equipment costs, and increase service life.

The above-mentioned embodiments are only used to illustrate the present invention for convenience, and are not intended to be limiting. Without departing from the spirit of the present invention, various simple changes and modifications that can be made by those skilled in the art should still be included in the scope of the following patent application.

1: water supply pool

2: Reservoir

3: Lifting pipe

31: check valve

33: Flow valve

34: Entrance

35: export

4: Water distribution pipeline

5: The first suction pipe

51:First pump

52: Anti-vibration tube

6: Second suction pipe

61:Second pump

62: Anti-vibration tube

7: Three-way ball valve

71: The first interface

72: Second interface

73: The third interface

Claims (2)

A water hammer energy elimination device for high-rise water pipes. The water supply tank on the top floor of the high-rise building is connected to a water pipe, and the reservoir on the bottom floor of the high-rise building is connected to a first water pipe and a second water pipe. The bottom end of the first water pipe is connected to a first pump, and the bottom end of the second water pipe is connected to a second pump. The outlet at the top of the water pipe is sent into the water supply tank; the feature is that the water hammer energy elimination device is connected with a check valve at the outlet of the water pipe, and a flow-assisted air pipe is connected to the side of the water pipe close to the check valve. The water flow is sent down into the water supply pool through the outlet of the water pipe and the check valve; when the water pumping is stopped, the check valve closes the outlet of the water pipe, and the outside air enters the water pipe through the flow-assisted air pipe, and the flow of air is not enough to supply the water to flow back downwards, so that a semi-vacuum state is formed in the water pipe to generate upward suction for the water in the water pipe, thereby slowing down the falling speed and impact energy of the water flow inside the water pipe. As the high-rise water hammer energy elimination device described in item 1 of the scope of the patent application, the diameter of the flow-aiding air pipe is set to be less than a quarter of the diameter of the water pipe.

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