CN216973575U - Negative pressure eliminating device for non-negative pressure water supply equipment - Google Patents
Negative pressure eliminating device for non-negative pressure water supply equipment Download PDFInfo
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- CN216973575U CN216973575U CN202220238056.0U CN202220238056U CN216973575U CN 216973575 U CN216973575 U CN 216973575U CN 202220238056 U CN202220238056 U CN 202220238056U CN 216973575 U CN216973575 U CN 216973575U
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Abstract
The utility model is suitable for the technical field of urban water supply, and provides a negative pressure eliminating device of non-negative pressure water supply equipment, which comprises a supporting box body, a pressurizing assembly, a pipe valve assembly, a monitoring assembly and a control assembly, wherein the pressurizing assembly comprises a water pump, a non-negative pressure tank, a high pressure tank and a vacuum suppressor, water is stored in the non-negative pressure tank and the high pressure tank, the water pump extracts the stored water, a water inlet pressure sensor is arranged on a water inlet converging main pipe in the pipe valve assembly, a water outlet pressure sensor is arranged on a water outlet converging main pipe, the pressure of inlet water and the pressure of outlet water in the device are further monitored, the water inlet pressure of a main pipe network is reduced in the water consumption peak period, the capacity of the non-negative pressure tank is limited, the vacuum suppressor is started to regulate the output water pressure, the generation of negative pressure is further inhibited, the frequent start and stop of a frequency converter unit is prevented, the equipment is protected, and the service life of the equipment is prolonged; the control assembly comprises a PID adjusting controller, the PID adjusting controller is used for controlling the device, pressure fluctuation is small, and water use experience of a user is improved.
Description
Technical Field
The utility model belongs to the technical field of urban water supply, and particularly relates to a negative pressure eliminating device of non-negative pressure water supply equipment.
Background
In the current field of municipal water supply technology, municipal water systems are an integral part of municipal utilities. The city water supply system plan is a component of the city overall plan. A municipal water supply system is generally composed of a water source, a water delivery conduit, a water plant and a water distribution network. After water is taken from a water source, the water is sent to a water plant through a water delivery pipe channel for water quality treatment, and the treated water is pressurized and then sent to users through a water distribution pipe network. In order to ensure the water consumption of residents on high floors, secondary pressurized water supply is needed, and water supply equipment needs to operate continuously for 24 hours; the non-negative pressure variable frequency water supply technology is convenient to use and stable in water outlet, so that the technology is commonly used for high-rise water supply, and the energy consumption loss of pressurization is saved.
In city water supply today, at the water peak, the income water pressure of main pipe network reduces, and no negative pressure tank's capacity is limited, if no negative pressure tank is inside not enough to deposit water, will lead to pressure drop until zero to produce the negative pressure, and go into water pressure and detect the lack of water, lead to frequent opening of frequency converter group to stop.
Disclosure of Invention
The utility model provides a negative pressure eliminating device for a non-negative pressure water supply device, and aims to solve the problem that the frequent starting and stopping of a frequency conversion unit is caused by the reduction of the water inlet pressure of a main pipe network mentioned in the background.
The negative pressure eliminating device for the non-negative pressure water supply equipment comprises a supporting box body, a pressurizing assembly, a pipe valve assembly, a monitoring assembly and a control assembly.
The supporting box body comprises a box body framework and a box body shell.
The pressurizing assembly comprises a water pump, a non-negative pressure tank, a high pressure tank and a vacuum suppressor.
The pipe valve assembly comprises a check valve, a wafer butterfly gate valve, a flexible connection, a water inlet confluence main pipe and a water outlet confluence main pipe.
The monitoring assembly comprises a water inlet pressure sensor, a water outlet pressure sensor, a pressure digital display and a frequency converter.
The control assembly comprises an intelligent electric control cabinet of the pump station.
The water inlet confluence main pipe is arranged on the upper surface of the non-negative pressure tank and is communicated with the non-negative pressure tank.
The vacuum suppressor is mounted on an upper surface of the non-negative pressure tank.
The water inlet pressure sensor is arranged on a pipeline connected with the non-negative pressure tank.
Preferably, the box body shell is fixedly arranged on the box body framework.
The non-negative pressure tank is fixedly arranged on the upper surface of the box body shell.
Preferably, the non-negative pressure tank is connected with the two wafer butterfly gate valves through pipelines.
And the two opposite-clamping butterfly gate valves are communicated with the water pump.
And the two water pumps are fixedly arranged on the upper surface of the box body shell.
And the frequency converter is arranged on each of the two water pumps.
Preferably, the check valves are connected to both of the water pumps through pipes.
The check valve is in flexible connection with the water outlet and flow combining main pipe.
Preferably, the water outlet confluence main is connected with the high-pressure tank through the check valve and the flexible connection and pipeline.
The high-pressure tank is fixedly arranged on the upper surface of the box body shell.
Preferably, the water outlet pressure sensor and the pressure digital display are both arranged on the water outlet confluence main pipe, and the water outlet pressure sensor is electrically connected with the pressure digital display.
Preferably, the PID adjusting controller is installed inside the intelligent electric control cabinet of the pump station.
And the PID adjusting controller is electrically connected with the water pump, the vacuum suppressor, the water pressure sensor, the water outlet pressure sensor, the pressure digital display and the frequency converter.
Compared with the prior art, the utility model has the beneficial effects that: the negative pressure eliminating device of the non-negative pressure water supply equipment comprises a pressure assembly, a water pump, a non-negative pressure tank, a high pressure tank and a vacuum suppressor, wherein water is stored in the non-negative pressure tank and the high pressure tank, the water pump extracts the stored water, a water inlet pressure sensor is arranged on a water inlet converging main pipe in a pipe valve assembly, a water outlet pressure sensor is arranged on a water outlet converging main pipe, the water inlet pressure and the water outlet pressure in the device are further monitored, the water inlet pressure of a main pipe network is reduced in the water consumption peak period, the capacity of the non-negative pressure tank is limited, the vacuum suppressor is started to adjust the output water pressure, the generation of negative pressure is further suppressed, the frequent start and stop of a frequency converter set are prevented, the equipment is protected, and the service life of the equipment is prolonged; the control assembly comprises a PID adjusting controller, and the device is controlled by the PID adjusting controller, so that the smoothness is excessive, the pressure fluctuation is small, and the water use experience of a user is improved; and this device simple structure, convenient operation monitors rivers often through pressure sensor, does benefit to in time to adjust the negative pressure, and the security of improve equipment is worth more using widely.
Drawings
FIG. 1 is a schematic overall structure of the present invention;
FIG. 2 is a front elevational view of the entirety of the present invention;
FIG. 3 is a top plan view of the present invention as a whole;
FIG. 4 is a side view of the entirety of the present invention;
in the figure: 1-supporting box body, 11-box body framework, 12-box body shell, 2-pressurizing assembly, 21-water pump, 22-non-negative pressure tank, 23-high pressure tank, 24-vacuum suppressor, 3-pipe valve assembly, 31-check valve, 32-clamp butterfly gate valve, 33-flexible connection, 34-water inlet confluence header pipe, 35-water outlet confluence header pipe, 4-monitoring assembly, 41-water inlet pressure sensor, 42-water outlet pressure sensor, 44-pressure digital display, 45-frequency converter, 5-control assembly and 51-pump station intelligent electric control cabinet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a no negative pressure water supply equipment negative pressure remove device, including supporting box 1, pressure components 2, pipe valve subassembly 3, monitoring components 4 and control assembly 5, supporting box 1 includes box skeleton 11 and box shell 12, the fixed mounting of box shell 12 is on box skeleton 11, pressure components 2 includes water pump 21, no negative pressure jar 22, high-pressure tank 23 and vacuum suppressor 24, pipe valve subassembly 3 includes check valve 31, double-clip formula butterfly gate valve 32, flexible connection 33, water inlet confluence house steward 34 and outlet water confluence house steward 35, water inlet confluence house steward 34 is installed on the upper surface of no negative pressure jar 22, and water inlet confluence house steward 34 communicates no negative pressure jar 22, vacuum suppressor 24 installs on the upper surface of no negative pressure jar 22, no negative pressure jar 22 fixed mounting is on the upper surface of box shell 12.
The water inlet confluence main pipe 34 facilitates water flow, the non-negative pressure tank 22 is used for storing pure water, the pure water enters the non-negative pressure tank 22 through the water inlet confluence main pipe 34, and the vacuum suppressor 24 can suppress the pressure in the non-negative pressure tank 22.
The non-negative pressure tank 22 is connected with two opposite-clamping butterfly gate valves 32 through pipelines, the two opposite-clamping butterfly gate valves 32 are communicated with the water pumps 21, the two water pumps 21 are connected with check valves 31 through pipelines, the check valves 31 are connected with a water outlet confluence main pipe 35 through flexible connections 33, the water outlet confluence main pipe 35 is connected with the high pressure tank 23 through the check valves 31, the flexible connections 33 and the pipelines, and the high pressure tank 23 is fixedly installed on the upper surface of the box body shell 12.
Wherein, wafer formula butterfly gate valve 32 convenient to detach, and then make things convenient for the maintenance of this device, prolong the life of this device, two water pumps 21 are convenient for extract the pure water in the no negative pressure jar 22, and check valve 31 can prevent the rivers backward flow simultaneously, reduces the negative pressure, and pressure vessel 23 can play the effect of balanced water yield and pressure, avoids the relief valve frequently to open and frequently mends water with automatic water supply valve, and play water confluence house steward 35 is convenient to be discharged the pure water, inputs the resident family.
The monitoring assembly 4 comprises a water inlet pressure sensor 41, a water outlet pressure sensor 42, a pressure digital display 44 and a frequency converter 45, the water inlet pressure sensor 41 is installed on a pipeline connected with the non-negative pressure tank 22, the two water pumps 21 are fixedly installed on the upper surface of the box body shell 12, the frequency converter 45 is installed on the two water pumps 21, the water outlet pressure sensor 42 and the pressure digital display 44 are installed on the water outlet confluence main pipe 35, and the water outlet pressure sensor 42 is electrically connected with the pressure digital display 44.
In addition, the water pressure of intaking can be detected by intake pressure sensor 41, and the power of water pump 21 is convenient for adjust by converter 45, and it is more convenient to control water pump 21, and pressure when going out water pressure sensor 42 is used for monitoring rivers and discharging to show through pressure digital display 44, monitor the water pressure of this device from time to time.
The control component 5 comprises a pump station intelligent electric control cabinet 51, wherein a PID (proportion integration differentiation) adjusting controller is arranged in the pump station intelligent electric control cabinet 51 and is electrically connected with the water pump 21, the vacuum suppressor 24, the water inlet pressure sensor 41, the water outlet pressure sensor 42, the pressure digital display 44 and the frequency converter 45.
In addition, the PID adjusting controller can internally execute PID calculation, smoothness is excessive, pressure fluctuation is small, water using experience of a user is improved, meanwhile, the on-off and power of the water pump 21, the vacuum suppressor 24, the water inlet pressure sensor 41, the water outlet pressure sensor 42, the pressure digital display 44 and the frequency converter 45 can be controlled, frequent start and stop are avoided, equipment is protected, and the service life of the equipment is prolonged.
The working principle and the using process of the utility model are as follows: after the water supply device is installed, purified water enters the non-negative pressure tank 22 from the water inlet confluence main pipe 34, the two water pumps 21 pump the purified water in the non-negative pressure tank 22, meanwhile, the check valve 31 can prevent water flow from flowing back and reduce negative pressure, the high pressure tank 23 can play a role in balancing water quantity and pressure, the purified water is discharged from the water outlet confluence main pipe 35 and is sent to residents, the water inlet pressure sensor 41 detects the water pressure of inlet water, the water inlet pressure keeps constant, adjustment for eliminating the negative pressure is not performed, and when water is used in a peak period, the water inlet pressure sensor 41 detects that the water inlet pressure is reduced, for example: when the water pressure is lower than the set value, starting a negative pressure elimination automatic control program, when the water pressure is lower than the set value of the water inlet pressure, reducing the water outlet by the water pump 21, adjusting the water outlet pressure to be reduced by 1%, executing PID calculation, if the water pressure is not reduced after adjustment, keeping the operation of the water outlet pressure, if the water inlet pressure is continuously reduced by 1%, adjusting the water outlet pressure to be reduced by 1% again, executing PID calculation until the water inlet pressure is kept constant, ensuring that the water inlet end does not generate negative pressure, when the water consumption peak period is over, the water inlet pressure slowly rises, and when the water inlet pressure rises to the set value of 0.06MPa, adjusting the outlet pressure to be increased by 1%, if the water inlet pressure is greater than 0.06MPa, increasing the water inlet pressure to the initial set value until the water inlet pressure is reduced to be less than 0.06MPa and greater than 0.03MPa, keeping the adjusted outlet pressure until the water inlet pressure is greater than 0.06MPa, the adjustment is made again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a no negative pressure water supply equipment negative pressure remove device which characterized in that: comprises a supporting box body (1), a pressurizing assembly (2), a pipe valve assembly (3), a monitoring assembly (4) and a control assembly (5);
the supporting box body (1) comprises a box body framework (11) and a box body shell (12);
the pressurizing assembly (2) comprises a water pump (21), a non-negative pressure tank (22), a high pressure tank (23) and a vacuum suppressor (24);
the pipe valve assembly (3) comprises a check valve (31), a wafer type butterfly gate valve (32), a flexible connection (33), a water inlet confluence main pipe (34) and a water outlet confluence main pipe (35);
the monitoring assembly (4) comprises a water inlet pressure sensor (41), a water outlet pressure sensor (42), a pressure digital display (44) and a frequency converter (45);
the control assembly (5) comprises an intelligent electric control cabinet (51) of a pump station;
the water inlet and confluence main pipe (34) is arranged on the upper surface of the non-negative pressure tank (22), and the water inlet and confluence main pipe (34) is communicated with the non-negative pressure tank (22);
the vacuum suppressor (24) is mounted on an upper surface of the non-negative pressure tank (22);
the water inlet pressure sensor (41) is arranged on a pipeline connected with the non-negative pressure tank (22).
2. The negative pressure eliminating device for water supply equipment without negative pressure as claimed in claim 1, wherein: the box body shell (12) is fixedly arranged on the box body framework (11);
the non-negative pressure tank (22) is fixedly arranged on the upper surface of the box body shell (12).
3. The negative pressure eliminating device for water supply equipment without negative pressure as claimed in claim 1, wherein: the non-negative pressure tank (22) is connected with two opposite clamping type butterfly gate valves (32) through pipelines;
the two opposite-clamping butterfly gate valves (32) are communicated with the water pump (21);
the two water pumps (21) are fixedly arranged on the upper surface of the box body shell (12);
and the frequency converters (45) are arranged on the two water pumps (21).
4. The negative pressure eliminating device for water supply equipment without negative pressure as claimed in claim 1, wherein: the two water pumps (21) are connected with the check valve (31) through pipelines;
the check valve (31) is flexibly connected with the water outlet and flow combining main pipe (35).
5. The negative pressure eliminating device for a water supply equipment without negative pressure as claimed in claim 1, wherein: the water outlet and confluence main pipe (35) is connected with the high-pressure tank (23) through the check valve (31), the flexible connection (33) and a pipeline;
the high-pressure tank (23) is fixedly arranged on the upper surface of the box body shell (12).
6. The negative pressure eliminating device for water supply equipment without negative pressure as claimed in claim 1, wherein: the water outlet pressure sensor (42) and the pressure digital display (44) are both arranged on the water outlet merging header pipe (35), and the water outlet pressure sensor (42) is electrically connected with the pressure digital display (44).
7. The negative pressure eliminating device for a water supply equipment without negative pressure as claimed in claim 1, wherein: a PID (proportion integration differentiation) adjusting controller is arranged in the intelligent electric control cabinet (51) of the pump station;
the PID adjusting controller is electrically connected with the water pump (21), the vacuum suppressor (24), the water pressure sensor (41), the water outlet pressure sensor (42), the pressure digital display (44) and the frequency converter (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238056.0U CN216973575U (en) | 2022-01-28 | 2022-01-28 | Negative pressure eliminating device for non-negative pressure water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238056.0U CN216973575U (en) | 2022-01-28 | 2022-01-28 | Negative pressure eliminating device for non-negative pressure water supply equipment |
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| CN216973575U true CN216973575U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220238056.0U Active CN216973575U (en) | 2022-01-28 | 2022-01-28 | Negative pressure eliminating device for non-negative pressure water supply equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960831A (en) * | 2022-07-18 | 2022-08-30 | 上海弛泉科技(集团)有限公司 | Mute energy-saving non-negative pressure full-variable-frequency water supply equipment |
-
2022
- 2022-01-28 CN CN202220238056.0U patent/CN216973575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960831A (en) * | 2022-07-18 | 2022-08-30 | 上海弛泉科技(集团)有限公司 | Mute energy-saving non-negative pressure full-variable-frequency water supply equipment |
| CN114960831B (en) * | 2022-07-18 | 2024-03-08 | 上海弛泉科技(集团)有限公司 | Mute energy-saving negative-pressure-free full-frequency-conversion water supply equipment |
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