CN214329103U - Non-negative pressure water supply equipment with emergency function - Google Patents
Non-negative pressure water supply equipment with emergency function Download PDFInfo
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- CN214329103U CN214329103U CN202120106827.6U CN202120106827U CN214329103U CN 214329103 U CN214329103 U CN 214329103U CN 202120106827 U CN202120106827 U CN 202120106827U CN 214329103 U CN214329103 U CN 214329103U
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Abstract
The utility model discloses a non-negative pressure water supply device with emergency function, which comprises a water inlet pipe, a steady flow tank, a variable frequency water pump unit and a water supply pipe which are connected in sequence; the device also comprises a high-pressure maintaining tank, wherein an energy accumulator is arranged in the high-pressure maintaining tank, the energy accumulator is connected with an air inlet pipe and an air outlet pipe, the air inlet pipe is provided with an electromagnetic valve, and the air outlet pipe is provided with an exhaust valve; the high-pressure maintaining tank is connected with the flow stabilizing tank, a water inlet pipe and a water outlet pipe are connected between the water supply pipe and the high-pressure maintaining tank, a booster pump and a first butterfly valve are arranged on the water inlet pipe, and a second butterfly valve is arranged on the water outlet pipe. The utility model discloses no negative pressure water supply equipment supplies water for the user by stationary flow jar and variable frequency water pump unit under the normal condition, through setting up high-pressure pressurize jar, to filling water pressurization in the high-pressure pressurize jar when normal water supply, in case secondary water supply equipment has a power failure suddenly, supplies water by the high-pressure pressurize jar, guarantees the effective water supply demand of important unit or department, improves the reliability that the secondary supplied water.
Description
Technical Field
The utility model belongs to the technical field of the municipal water supply, particularly, relate to a no negative pressure water supply equipment with emergent function.
Background
The two ends of the non-negative pressure water supply equipment are respectively connected with a municipal pipe network and a user pipe network and are applied to high-rise water supply through secondary pressurization. Due to the limitation of geographical conditions, some areas have a high power failure frequency. It is difficult to guarantee the water supply requirement of high-rise users. Particularly, the water supply of high-rise parts of some important units or departments cannot be stopped at will, otherwise the normal work is influenced.
Disclosure of Invention
The utility model is not enough to the aforesaid, a no negative pressure water supply equipment with emergent function is provided, improves the reliability that the secondary supplied water, guarantees the effective water supply demand of important unit or department.
In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme:
the embodiment of the utility model provides a non-negative pressure water supply equipment with emergency function, which comprises a water inlet pipe, a steady flow tank, a variable frequency water pump unit and a water supply pipe which are connected in sequence; the high-pressure maintaining device is characterized by further comprising a high-pressure maintaining tank, wherein an energy accumulator is arranged in the high-pressure maintaining tank, an air inlet pipe and an air outlet pipe are connected to the energy accumulator, an electromagnetic valve is arranged on the air inlet pipe, and an exhaust valve is arranged on the air outlet pipe; the high-pressure maintaining tank is connected with the flow stabilizing tank, a water inlet pipe and a water outlet pipe are connected between the water supply pipe and the high-pressure maintaining tank, a booster pump and a first butterfly valve are arranged on the water inlet pipe, and a second butterfly valve is arranged on the water outlet pipe.
As a further improvement, the utility model discloses still include the nitrogen cylinder, nitrogen cylinder and intake-tube connection, be equipped with the relief pressure valve in the intake pipe.
As the embodiment of the utility model provides a further improvement, be equipped with pressure sensor in the high pressure pressurize jar.
As the embodiment of the utility model provides a further improvement, be equipped with the level gauge in the high pressure pressurize jar.
As the embodiment of the utility model provides a further improvement, be equipped with the vacuum inhibitor on the stationary flow jar.
As the embodiment of the utility model provides a further improvement, frequency conversion water pump unit includes the water pipe and sets gradually frequency conversion water pump, check valve and the third butterfly valve on the water pipe, frequency conversion water pump and stationary flow jar are connected, third butterfly valve and delivery pipe connection.
As the embodiment of the utility model provides a further improvement, still be equipped with the fourth butterfly valve on the water pipe, the fourth butterfly valve is located between frequency conversion water pump and the stationary flow jar.
As the embodiment of the utility model provides a further improvement, frequency conversion water pump unit is 2 ~ 3 groups, and frequency conversion water pump unit connects in parallel to be set up between stationary flow jar and delivery pipe.
Compared with the prior art, the technical scheme of the utility model following beneficial effect has: the utility model provides a no negative pressure water supply equipment with emergent function, normal condition is supplied water for the user by stationary flow jar and frequency conversion water pump unit down, through setting up high-pressure pressurize jar, to filling water in the high-pressure pressurize jar when normally supplying water and pressurizing, in case secondary water supply equipment has a power failure suddenly, supplies water by the high-pressure pressurize jar, guarantees the effective water supply demand of important unit or department, improves the reliability that the secondary supplied water.
Drawings
Fig. 1 is a schematic structural diagram of a non-negative pressure water supply device according to an embodiment of the present invention.
The figure shows that: the device comprises a water inlet pipe 1, a steady flow tank 2, a vacuum suppressor 3, an exhaust valve 4, a high-pressure maintaining tank 5, an energy accumulator 51, a pressure sensor 52, a liquid level meter 53, an electromagnetic valve 6, a pressure reducing valve 7, a first butterfly valve 8, a nitrogen gas bottle 9, a booster pump 10, a water supply pipe 11, a third butterfly valve 12, a check valve 13, a variable-frequency water pump 14, a second butterfly valve 15 and a fourth butterfly valve 16.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.
The embodiment of the utility model provides a no negative pressure water supply equipment with emergent function, as shown in fig. 1, including the water pipe 1 that connects gradually, stationary flow jar 2, frequency conversion water pump unit and delivery pipe 11, the water inlet and the municipal water pipe network connection that come of water pipe 1, the delivery port that comes water pipe 1 is connected with the water inlet of stationary flow jar 2, and the delivery port of stationary flow jar 2 passes through frequency conversion water pump unit and is connected with the water inlet of delivery pipe 8, and the delivery port and the user pipe network connection of delivery pipe 8. The no negative pressure water supply equipment of this embodiment still includes high-pressure pressurize jar 5, is equipped with accumulator 51 in the high-pressure pressurize jar 5, is connected with intake pipe and outlet duct on the accumulator 51, is equipped with solenoid valve 6 in the intake pipe, is equipped with discharge valve 4 on the outlet duct. High pressure pressurize jar 5 is connected with stationary flow jar 2, is connected with inlet tube and outlet pipe between delivery pipe 11 and the high pressure pressurize jar 5, is equipped with booster pump 10 and first butterfly valve 8 on the inlet tube, is equipped with second butterfly valve 15 on the outlet pipe.
The non-negative pressure water supply equipment with the emergency function of the embodiment supplies water for users by the steady flow tank 2 and the variable frequency water pump unit under the normal state, the high pressure maintaining tank 5 is arranged in the embodiment, when water is normally supplied, partial water input into the water supply pipe 11 by the variable frequency water pump unit is pressurized and input into the high pressure maintaining tank 5 by the booster pump 10, the high pressure water continuously extrudes the energy accumulator 51, the gas in the energy accumulator 51 is discharged by the exhaust valve 4 until the pressure in the high pressure maintaining tank 5 reaches the set pressure value, and the booster pump 10 stops working. When the secondary water supply equipment is suddenly powered off, the electromagnetic valve 6 is opened, gas with certain pressure is introduced into the energy storage device 51, the second butterfly valve 15 is opened, the energy storage device 51 expands to enable high-pressure water in the high-pressure maintaining tank 5 to be input into the water supply pipe 11 through the water outlet pipe, water is continuously supplied to a user, the effective water supply requirement of important units or departments is guaranteed, and the reliability of secondary water supply is improved.
As a preferred example, the non-negative pressure water supply equipment of this embodiment further includes a nitrogen cylinder 9, the nitrogen cylinder 9 is connected with an air inlet pipe, and the air inlet pipe is provided with a pressure reducing valve 7. When the frequency conversion water pump unit breaks down, the electromagnetic valve 6 is opened, nitrogen in the nitrogen cylinder 9 is decompressed by the decompression valve 7 and then is introduced into the energy accumulator 51, and water is supplied by the high-pressure maintaining tank 5. The nitrogen is non-toxic and non-combustible, and is safe and reliable by using the nitrogen as a gas source. The nitrogen in the nitrogen cylinder 9 is high-pressure gas, and the pressure of the water supply equipment is very low, and the nitrogen can be introduced into the energy storage device 51 after being reduced by the pressure reducing valve 7.
As a preferable example, a pressure sensor 52 is provided in the high-pressure holding tank 5. The pressure sensor 52 is configured to monitor the pressure of the water in the high-pressure holding tank 5, and when high-pressure water is supplied into the high-pressure holding tank 5, the operation of the booster pump 10 is stopped when the pressure of the water in the high-pressure holding tank 5 reaches a set pressure value.
As a preferable example, a liquid level meter 53 is provided in the high-pressure holding tank 5. The level gauge 53 is used for monitoring the liquid level of the water in the high-pressure maintaining tank 5, and when the water is supplied to the high-pressure maintaining tank 5, the electromagnetic valve 6 is closed after the liquid level in the high-pressure maintaining tank 5 drops to a set liquid level value, the air supply to the energy accumulator 51 is stopped, and the vacuumizing is prevented.
As a preferable example, the steady flow tank 2 is provided with a vacuum suppressor 3. The vacuum suppressor 3 is used for suppressing the negative pressure generated in the steady flow tank 2 and keeping the municipal water supply pipe network pressure balance.
As a preferred example, the variable frequency water pump unit comprises a water pipe, and a variable frequency water pump 14, a check valve 13 and a third butterfly valve 12 which are sequentially arranged on the water pipe, wherein the variable frequency water pump 14 is connected with the steady flow tank 2, and the third butterfly valve 12 is connected with a water supply pipe 11. The variable frequency water pump 14 operates, the third butterfly valve 12 is used for controlling flow, and the check valve 13 is used for preventing high-pressure water on the water outlet pipe from flowing backwards when the variable frequency water pump 14 stops working. On the basis of municipal water supply pipe network pressure, pressure is superposed according to the requirements of users to supply water, and pressurized water supply is carried out according to the principle of how much difference is compensated, so that energy is effectively saved.
Further, a fourth butterfly valve 16 is further arranged on the water pipe, and the fourth butterfly valve 16 is located between the variable frequency water pump 14 and the steady flow tank 2. And a fourth butterfly valve 16 is arranged at the upstream of the variable frequency pump 14 and is used for controlling the water inlet flow of the water pipe.
As a preferred example, the frequency conversion water pump units are 2-3 groups, and are arranged between the steady flow tank 2 and the water supply pipe 11 in parallel. And a plurality of groups of variable frequency water pump units are arranged between the steady flow tank 2 and the water supply pipe 11 in parallel, the variable frequency water pump units are independent, and one or more groups of variable frequency water pump units can be selected to operate according to actual requirements.
The working process of the non-negative pressure water supply equipment with the emergency function in the embodiment is as follows:
the water coming from the municipal water supply pipe network sequentially enters the flow stabilizing tank 2 and the high-pressure maintaining tank 5 from the water pipe 1 until the two tanks are full of water. When water needs to be supplied to a user pipe network, the variable frequency water pump 14 is started, incoming water is input into the water supply pipe 11 through the variable frequency water pump unit to supply water, pressure is superposed according to the needs of users on the basis of municipal incoming water pipe network pressure, and pressurized water supply is carried out according to the difference supplementing principle. Meanwhile, the booster pump 10 is started, the first butterfly valve 8 is opened, part of water in the water supply pipe 11 is pressurized into the high-pressure maintaining tank 5, the high-pressure water continuously extrudes the energy storage device 51, nitrogen in the energy storage device 51 is discharged through the exhaust valve 4, and after a set time, the exhaust valve 4 is closed. And when the pressure of the high-pressure maintaining tank 5 reaches a set pressure value, the booster pump 10 stops running. When the secondary water supply equipment is suddenly powered off, the electromagnetic valve 6 is opened, and the second butterfly valve 15 on the water outlet pipe of the high-pressure maintaining tank 5 is switched from a normally closed state to an open state, at the moment, nitrogen in the nitrogen cylinder 9 enters the energy accumulator 51 through the pressure reducing valve 7, and the energy accumulator 51 expands to enable high-pressure water in the high-pressure maintaining tank 5 to enter the water supply pipe 11 to continuously supply emergency water to a user. When the liquid level in the high-pressure maintaining tank 5 is reduced to a set liquid level value, the electromagnetic valve 6 is closed, and the gas supply of the nitrogen cylinder 9 is stopped until the power supply is recovered to operate again.
The embodiments of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention should be regarded as the technical scope of the present invention.
Claims (8)
1. A non-negative pressure water supply device with an emergency function is characterized by comprising a water inlet pipe (1), a steady flow tank (2), a variable frequency water pump unit and a water supply pipe (11) which are connected in sequence; the device is characterized by also comprising a high-pressure maintaining tank (5), wherein an energy accumulator (51) is arranged in the high-pressure maintaining tank (5), an air inlet pipe and an air outlet pipe are connected to the energy accumulator (51), an electromagnetic valve (6) is arranged on the air inlet pipe, and an exhaust valve (4) is arranged on the air outlet pipe; high pressure pressurize jar (5) are connected with stationary flow jar (2), be connected with inlet tube and outlet pipe between delivery pipe (11) and high pressure pressurize jar (5), be equipped with booster pump (10) and first butterfly valve (8) on the inlet tube, be equipped with second butterfly valve (15) on the outlet pipe.
2. The non-negative pressure water supply equipment according to claim 1, further comprising a nitrogen gas cylinder (9), wherein the nitrogen gas cylinder (9) is connected with an air inlet pipe, and a pressure reducing valve (7) is arranged on the air inlet pipe.
3. Non-negative pressure water supply equipment according to claim 1, characterized in that a pressure sensor (52) is arranged in the high pressure holding tank (5).
4. The non-negative pressure water supply apparatus according to claim 1, wherein a liquid level meter (53) is provided in the high pressure holding tank (5).
5. Non-negative pressure water supply equipment according to claim 1, characterized in that the steady flow tank (2) is provided with a vacuum suppressor (3).
6. The non-negative pressure water supply equipment according to claim 1, wherein the variable frequency water pump unit comprises a water pipe, and a variable frequency water pump (14), a check valve (13) and a third butterfly valve (12) which are arranged on the water pipe in sequence, the variable frequency water pump (14) is connected with the steady flow tank (2), and the third butterfly valve (12) is connected with the water supply pipe (11).
7. The non-negative pressure water supply equipment according to claim 6, characterized in that a fourth butterfly valve (16) is arranged on the water pipe, and the fourth butterfly valve (16) is positioned between the variable frequency water pump (14) and the steady flow tank (2).
8. The non-negative pressure water supply equipment according to claim 1, wherein the variable frequency water pump units are 2-3 groups, and are arranged between the steady flow tank (2) and the water supply pipe (11) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120106827.6U CN214329103U (en) | 2021-01-15 | 2021-01-15 | Non-negative pressure water supply equipment with emergency function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120106827.6U CN214329103U (en) | 2021-01-15 | 2021-01-15 | Non-negative pressure water supply equipment with emergency function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214329103U true CN214329103U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120106827.6U Active CN214329103U (en) | 2021-01-15 | 2021-01-15 | Non-negative pressure water supply equipment with emergency function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214329103U (en) |
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2021
- 2021-01-15 CN CN202120106827.6U patent/CN214329103U/en active Active
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