CN212742722U - Distributed multi-terminal variable-frequency non-negative-pressure control device - Google Patents
Distributed multi-terminal variable-frequency non-negative-pressure control device Download PDFInfo
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- CN212742722U CN212742722U CN202021332410.3U CN202021332410U CN212742722U CN 212742722 U CN212742722 U CN 212742722U CN 202021332410 U CN202021332410 U CN 202021332410U CN 212742722 U CN212742722 U CN 212742722U
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Abstract
The utility model discloses a distributing type multi-terminal frequency conversion does not have negative pressure control device relates to cities and towns life secondary pipe network water supply field, to current dimension guarantor personnel at the inconvenient problem of pump complete set unit limit check-up control system pressure and observation alarm information, the following scheme is put forward now, and it includes variable frequency control cabinet, water pump, pressure instrument, flow controller and pressurize predictive control ware, install pressure instrument and pressurize predictive control ware on the outlet pipe of water pump, just install flow controller on the inlet tube of water pump. The utility model discloses novel structure, and effectual having solved the dimension guarantor personnel at water pump complete sets limit check-up control system pressure and observe the inconvenient problem of alarm information, can also audio-visual dynamic real-time supervision pipe network pressure, automatic recording pressure data and a period internal pressure trend graph, according to the pressure variation trend, adjust equipment running state and send alarm information in advance simultaneously.
Description
Technical Field
The utility model relates to a cities and towns life secondary pipe network water supply field especially relates to a distributing type multi-terminal frequency conversion does not have negative pressure control device.
Background
With the increasing urban construction in recent years, high-rise buildings are increasing, and secondary water supply facilities become an indispensable part in the construction of tap water supply networks. However, in the traditional secondary pressurized water supply mode, secondary pollution caused by a water tank and a water tank directly influences the water quality safety of water supply, serious water quality pollution accidents are caused, and the problem has attracted close attention of government competent departments and water supply enterprises. Around the beginning of the century, China successfully introduces non-negative pressure water supply equipment and makes up for the defects of the traditional water supply mode. From the municipal perspective, many cities have preliminarily possessed the basic conditions for directly extracting secondary pressurized water supply from the municipal pipe network. From the social demand, the development needs of socioeconomic society, people expect that the water quality secondary pollution is avoided, and the new energy-saving and electricity-saving water supply supercharging equipment can replace the traditional supercharging equipment, so that a negative pressure-free water supply mode is imperative. The non-negative pressure water supply has the following advantages: 1. the pressure of a municipal pipe network is fully utilized, and energy is greatly saved; 2. secondary pollution to water is avoided; 3. the occupied area is saved; 4. the investment is saved; 5. the maintenance is convenient; 6. the operation cost is saved; 7. maintaining a constant pressure; 8. the water is not cut off when the power is cut off.
The non-negative pressure variable frequency water supply has many advantages but has some problems, firstly, the non-negative pressure variable frequency water supply is greatly influenced by municipal water supply, and the whole equipment is in a water cut-off state once the municipal water supply fails due to the lack of a reservoir. Secondly, conventional no negative pressure variable frequency water supply equipment mainly comprises water pump complete sets, pressure transmitter and variable frequency control cabinet, because variable frequency control cabinet and water pump unit are not in a room, consequently all need look over in the room of variable frequency control cabinet when needing calibration control system pressure or taking place alarm information, and it is inconvenient, has reduced the maintenance personnel work efficiency. Finally, municipal pressure is easy to drop due to lack of a reservoir, and surrounding water is affected. Therefore, in order to solve the problems, a distributed multi-terminal variable-frequency non-negative-pressure control device is provided.
Disclosure of Invention
The utility model provides a no negative pressure controlling means of distributing type multi-terminal frequency conversion has solved the current problem that the dimension guarantor is at water pump complete sets limit check-up control system pressure and observation alarm information is inconvenient.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a no negative pressure controlling means of distributing type multi-terminal frequency conversion, includes frequency conversion control cabinet, water pump, pressure instrument, flow controller and pressurize prediction controller, install pressure instrument and pressurize prediction controller on the outlet pipe of water pump, just install flow controller on the inlet tube of water pump.
Preferably, the flow controller comprises an electric regulating valve, a pressure sensor and a second human-computer interaction panel.
Preferably, the electric control valve adjusts the water inflow of the water pump complete set, the pressure sensor detects the water inflow pressure in real time, and the second human-computer interaction panel is connected with the variable frequency control cabinet through a network cable.
Preferably, the holding pressure prediction controller comprises a holding pressure capsule, a protective cover shell, a pressure sensor and a first human-machine interaction panel.
Preferably, the first human-computer interaction panel is connected with the variable frequency control cabinet through a network cable.
Preferably, the frequency conversion control cabinet is provided with a switch, a PLC (programmable logic controller) and a master computer interaction panel, and the PLC and the master computer interaction panel are connected with the switch through network cables.
The utility model has the advantages that:
1. the utility model discloses have many terminals digital display operating window, when main control cabinet and water pump unit are not in a room, be convenient for more maintain personnel's observation record, the maintenance is portable, improves work efficiency.
2. The utility model discloses can be according to the actual demand on scene, can be in different places each protection parameter value of the free adjustment of integral type man-machine interface through each controller, application range is wide.
3. The utility model discloses each terminal adopts the form of ethernet communication bus to connect, and scalability is strong, can increase or reduce according to the actual demand.
4. The utility model discloses have the prediction protect function, from taking storage space, can take notes pressure data and generate pressure variation trend chart, through statistics study automatic conclusion analysis pressure variation's peak valley time quantum, when next pressure peak value time quantum arrives, the main control cabinet is given to the signals that can initiatively defensive, lets the main control cabinet adjust device running state in advance, avoids causing the influence to municipal pipe network pressure.
Drawings
Fig. 1 is a schematic structural diagram of the pressure maintaining prediction controller of the present invention.
Fig. 2 is a schematic structural diagram of the intelligent flow controller of the present invention.
Fig. 3 is a schematic structural diagram of the water pump complete set of the present invention.
Fig. 4 is a schematic structural diagram of the variable frequency control cabinet of the present invention.
Reference numbers in the figures: 1. a first human-computer interaction panel; 2. a protective housing; 3. a second human-computer interaction panel; 4. a flow controller; 5. a pressure gauge; 6. a pressure-maintaining predictive controller; 7. a switch; 8. a PLC controller; 9. a main man-machine interaction panel; 10. frequency conversion control cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a distributed multi-terminal variable frequency non-negative pressure control device comprises a variable frequency control cabinet 10, a water pump, a pressure instrument 5, a flow controller 4 and a pressure maintaining prediction controller 6, wherein the pressure instrument 5 and the pressure maintaining prediction controller 6 are installed on a water outlet pipe of the water pump, the flow controller 4 is installed on a water inlet pipe of the water pump, the flow controller 4 comprises an electric regulating valve, a pressure sensor and a second human-computer interaction panel 3, the electric regulating valve regulates the water inlet amount of a complete set of unit of the water pump, the pressure sensor detects the water inlet pressure in real time, the second human-computer interaction panel 3 is connected with the variable frequency control cabinet 10 through a network cable, the pressure maintaining prediction controller 6 comprises a pressure maintaining capsule, a protective cover 2, the pressure sensor and a first human-computer interaction panel 1, the first human-computer interaction panel 1 is connected with the variable frequency, the frequency conversion control cabinet 10 is provided with a switch 7, a PLC 8 and a main computer interaction panel 9, and the PLC 8 and the main computer interaction panel 9 are connected with the switch 7 through network cables.
The working principle is as follows: the utility model relates to a distributed multi-terminal variable frequency non-negative pressure control device, which comprises a variable frequency control cabinet 10, a water pump complete set, a pressure instrument 5, an intelligent flow controller 4 and a pressure maintaining prediction controller 6, wherein the pressure instrument 5 is arranged on a water outlet pipeline connected with a water pump, the intelligent flow controller 4 is arranged on a water inlet pipeline, the pressure maintaining prediction controller 6 is arranged on the water outlet pipeline, the intelligent flow controller 4 mainly comprises an electric regulating valve, a pressure sensor, a multifunctional integrated man-machine interface and the like, the water inlet pressure is detected in real time, the water inlet amount of the water pump complete set is regulated, the multifunctional integrated man-machine interface is connected with a switch 7 in the variable frequency control cabinet 10 through a network cable for data exchange, the pressure maintaining prediction controller 6 mainly comprises a pressure maintaining capsule, a pressure resistant shell, a pressure sensor, a multifunctional integrated man-machine interface and the like, the multifunctional integrated human-computer interface is connected with the switch 7 in the variable frequency control cabinet 10 through a network cable to exchange data, and the PLC controller 8 in the variable frequency cabinet and the human-computer interface are also connected with the switch 7 through the network cable;
the pressure-maintaining prediction controller 6 is arranged on the water outlet confluence main pipe, when the pressure of the water outlet pipe network is normal, the water on the confluence main pipe enters the pressure-maintaining capsule through the pipeline entering device, and the inert gas in the pressure-resisting housing is compressed due to the slow expansion of the water pressure-maintaining capsule; when the pressure of the water outlet pipe network drops, the water pressure in the controller pressure maintaining capsule drops, at the moment, due to differential pressure, compressed inert gas is gradually released to compress the pressure maintaining capsule, so that the drop of the water outlet pressure is slowed down or prevented, the water pressure is detected in real time in a multifunctional integrated man-machine field under any state, various set protection parameters are automatically analyzed, judged and contrasted according to the detected pressure, the water pressure is displayed in a window, a pressure trend graph and dynamic alarm information are generated, data are exchanged with the frequency conversion cabinet in real time in a bus communication mode, the frequency conversion cabinet is informed to adjust the running state of the water pump in time, meanwhile, due to the self-contained storage space, pressure data in a period can be recorded and stored, the peak and valley time periods of the pressure change are automatically analyzed through statistical learning, when the next pressure peak time period comes, a signal can be actively sent to the frequency conversion cabinet in, the frequency conversion cabinet adjusts the running state of the equipment in advance, and the influence on the pressure of a water outlet pipe network is avoided;
an intelligent flow controller 4 is arranged on a water inlet pipe network at the front end of a steady flow tank, the water inflow of equipment is controlled by an electric regulating valve in a controller, the influence on a municipal pipe network is reduced, the multifunctional integrated man-machine interface in the controller detects the water inlet pressure in real time, various protection parameters set by comparison are automatically analyzed and judged according to the detected pressure, the water inlet pressure is digitally displayed in a window, a pressure trend graph and dynamic alarm information are generated, data are exchanged with a frequency conversion cabinet in real time in a bus communication mode, the frequency conversion cabinet is informed to adjust the running state of a water pump in time, meanwhile, the pressure data in a period of time can be recorded and stored, the peak time and the valley time of the pressure change can be automatically summarized and analyzed through statistical learning, when the next pressure peak time period comes, a signal can be actively sent to the frequency conversion cabinet, and the frequency conversion cabinet can adjust the running state of, avoid causing the influence to municipal pipe network pressure.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a no negative pressure controlling means of distributing type multi-terminal frequency conversion, includes frequency conversion control cabinet (10), water pump, pressure instrument (5), flow controller (4) and pressurize predictive control ware (6), its characterized in that, install pressure instrument (5) and pressurize predictive control ware (6) on the outlet pipe of water pump, just install flow controller (4) on the inlet tube of water pump.
2. A distributed multi-terminal variable-frequency non-negative-pressure control device according to claim 1, wherein the flow controller (4) comprises an electric control valve, a pressure sensor and a second human-computer interaction panel (3).
3. The distributed multi-terminal variable-frequency non-negative-pressure control device according to claim 2, wherein the electric control valve regulates water inflow of the water pump complete set, the pressure sensor detects water inflow pressure in real time, and the second human-computer interaction panel (3) is connected with the variable-frequency control cabinet (10) through a network cable.
4. A distributed multi-terminal variable-frequency non-negative-pressure control device according to claim 1, wherein the pressure-holding prediction controller (6) comprises a pressure-holding capsule, a protective casing (2), a pressure sensor and a first human-machine interaction panel (1).
5. A distributed multi-terminal variable-frequency non-negative-pressure control device according to claim 4, wherein the first human-computer interaction panel (1) is connected with the variable-frequency control cabinet (10) through a network cable.
6. The distributed multi-terminal variable-frequency non-negative-pressure control device according to claim 1, wherein a switch (7), a PLC (8) and a host computer interaction panel (9) are arranged on the variable-frequency control cabinet (10), and the PLC (8) and the host computer interaction panel (9) are connected with the switch (7) through network cables.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021332410.3U CN212742722U (en) | 2020-07-09 | 2020-07-09 | Distributed multi-terminal variable-frequency non-negative-pressure control device |
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| CN202021332410.3U CN212742722U (en) | 2020-07-09 | 2020-07-09 | Distributed multi-terminal variable-frequency non-negative-pressure control device |
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| CN212742722U true CN212742722U (en) | 2021-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110735A (en) * | 2021-11-04 | 2022-03-01 | 南京宁绿信节能环保科技有限公司 | Variable-flow energy-saving automatic control system of heating, ventilating and air conditioning water system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110735A (en) * | 2021-11-04 | 2022-03-01 | 南京宁绿信节能环保科技有限公司 | Variable-flow energy-saving automatic control system of heating, ventilating and air conditioning water system and control method thereof |
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