CN220768256U - Secondary supercharging system - Google Patents
Secondary supercharging system Download PDFInfo
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- CN220768256U CN220768256U CN202322571899.XU CN202322571899U CN220768256U CN 220768256 U CN220768256 U CN 220768256U CN 202322571899 U CN202322571899 U CN 202322571899U CN 220768256 U CN220768256 U CN 220768256U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000012795 verification Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the field of pressurization systems, and discloses a secondary pressurization system which comprises a water tank, a water outlet pipeline, a control cabinet and a water pump group, wherein the water pump group is connected with the control cabinet, a liquid level sensor is fixedly arranged in the water tank, a pressure sensor is arranged on the water outlet pipeline, the liquid level sensor and the pressure sensor are connected with the control cabinet through an I/O line, the secondary pressurization system consists of a singlechip, a frequency converter, a water pump, a water outlet pressure gauge, the liquid level sensor and the like, the number of small pumps and the number of large pumps arranged in the system can be freely matched according to the field working condition, and the secondary pressurization system can be applied to most secondary water supply pressurization fields in China through verification, and has strong application range and portability.
Description
Technical Field
The utility model relates to the field of supercharging systems, in particular to a secondary supercharging system.
Background
At present, most of secondary water supply pump houses in the market use a frequency converter to drag a plurality of water pumps with the same specification, namely, the secondary pressurized water supply is carried out in the working mode of frequency conversion and power frequency, under the working mode, at most only one water pump works in the frequency conversion state at the same time, and other working water pumps operate in the power frequency mode, so that the conditions of frequent increase and decrease of the number of water pumps and obvious fluctuation of water outlet water pressure can occur at a water pressure boundary point in the working mode, and the water pump in the frequency conversion work often works in a low-efficiency interval, which is contrary to the energy saving and emission reduction wish filed advocated by China. Secondly, the secondary water supply pump house is mainly used for uniformly selecting water pump performance parameters according to the number of planned users of the district and the floor height, all water pumps are of uniform specifications, but the water consumption of the district is high in the 'early-middle-late' water consumption, and the water consumption of the district is very low at other moments in the 'mountain' -shaped water demand model, so that the condition that the water pumps work in a low-efficiency interval can be necessarily caused when the water consumption is low, and therefore, the secondary pressurizing system is provided.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a secondary pressurizing system, in actual use, the die assembly of the pump assembly can be freely set according to the pump assembly of the field, namely, the hydraulic pump assembly can be realized in 11 combined modes of 'single pump', 'double pump', 'three pump', 'one small and one big', 'two small and three big', and 'two small and three big' only by cutting the hydraulic pump assembly out of the system from a frequency converter which does not exist or fails actually on the field on a touch screen configured on the field.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a secondary pressurization system, includes water tank, outlet pipe way, switch board and water pump package, and water pump package is connected with the switch board, and the inside fixed mounting of water tank has level sensor, is provided with pressure sensor on the outlet pipe way, level sensor and pressure sensor pass through the I/O line and are connected with the switch board.
Preferably, the control cabinet comprises a cabinet body, and a singlechip, an electric power monitor, a touch screen and a frequency converter group which are arranged in the cabinet body, wherein the liquid level sensor and the pressure sensor are connected with the singlechip through I/O lines, the singlechip is respectively connected with the frequency converter group, the electric power monitor and the touch screen through network lines, and the frequency converter group is connected with the water pump group.
Preferably, the frequency converter group comprises a small frequency converter I, a small frequency converter II, a large frequency converter I, a large frequency converter II and a large frequency converter III, and the small frequency converter I, the small frequency converter II, the large frequency converter I, the large frequency converter II and the large frequency converter III are respectively connected with the singlechip through network cables.
Preferably, the water pump group comprises a first water pump, a second water pump, a third water pump, a fourth water pump and a fifth water pump, wherein the first water pump and the second water pump are respectively connected with the first small frequency converter and the second small frequency converter, and the first large frequency converter, the second large frequency converter and the third large frequency converter are respectively connected with the third water pump, the fourth water pump and the fifth water pump.
Preferably, the frequency converter group, the power monitor and the touch screen adopt an RS485 serial port to communicate with the singlechip.
(III) beneficial effects
Compared with the prior art, the utility model provides a secondary supercharging system, which has the following beneficial effects:
1. the secondary pressurizing system consists of a singlechip, a frequency converter, a water pump, a water outlet pressure gauge, a liquid level sensor and the like, and the small pump quantity and the large pump quantity arranged by the system can be freely matched according to the on-site working condition, and can be applied to most of the secondary water supply pressurizing fields in China through verification, so that the secondary pressurizing system has a very strong application range and portability.
Drawings
FIG. 1 is a schematic diagram of the present utility model.
In the figure: 1. a water tank; 2. a liquid level sensor; 3. a water outlet pipe; 4. a pressure sensor; 5. a single chip microcomputer; 6. a power monitor; 7. a touch screen; 8. a small frequency converter I; 9. a small frequency converter II; 10. a large frequency converter I; 11. a large frequency converter II; 12. a large frequency converter III; 13. a first water pump; 14. a second water pump; 15. a water pump III; 16. a water pump IV; 17. and fifthly, a water pump.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a secondary pressurization system comprises a water tank 1, a water outlet pipeline 3, a control cabinet and a water pump set, wherein the water pump set is connected with the control cabinet, a liquid level sensor 2 is fixedly installed in the water tank 1, a pressure sensor 4 is arranged on the water outlet pipeline 3, and the liquid level sensor 2 and the pressure sensor 4 are connected with the control cabinet through an I/O line.
Further, the switch board includes the cabinet body and sets up singlechip 5, electric power monitor 6, touch-sensitive screen 7 and the converter group in the inside of the cabinet body, and level sensor 2 and pressure sensor 4 are connected with singlechip 5 through the I/O line, and singlechip 5 is connected converter group, electric power monitor 6 and touch-sensitive screen 7 respectively through the net twine, and the converter group is connected with the water pump group.
Further, the frequency converter group comprises a first small frequency converter 8, a second small frequency converter 9, a first large frequency converter 10, a second large frequency converter 11 and a third large frequency converter 12, wherein the first small frequency converter 8, the second small frequency converter 9, the first large frequency converter 10, the second large frequency converter 11 and the third large frequency converter 12 are respectively connected with the single chip microcomputer 5 through network cables.
Further, the water pump group comprises a first water pump 13, a second water pump 14, a third water pump 15, a fourth water pump 16 and a fifth water pump 17, wherein the first water pump 13 and the second water pump 14 are respectively connected with the first small frequency converter 8 and the second small frequency converter 9, and the first large frequency converter 10, the second large frequency converter 11 and the third large frequency converter 12 are respectively connected with the third water pump 15, the fourth water pump 16 and the fifth water pump 17.
Furthermore, the frequency converter group, the power monitor 6 and the touch screen 7 adopt an RS485 serial port to communicate with the singlechip 5, and the communication of the equipment can be realized only by one network cable on site, so that the problems of complicated on-site wiring and difficult maintenance caused by a large number of hard wires are avoided.
Working principle: when the system is powered on, the singlechip 5 collects the value of the pressure gauge on the water outlet pipeline 3 through the pressure sensor 4, compares the value with a target value of the water outlet pressure set by the system, and the power monitor 6 calculates the output frequency of the frequency converter according to the value by adopting a PID algorithm and drives the frequency converter with smaller accumulated running time in the first small frequency converter 8 and the second small frequency converter 9, so that the system works in a single small pump mode. If the actual running frequency of the small pump frequency converter is larger than the pump increasing frequency P set by the system by a small amount and the continuous duration exceeds the pump increasing delay time set by the system, a second small pump is started, at the moment, the small frequency converter I8 and the small frequency converter II 9 are at the same working frequency, namely, the singlechip 5 compares and calculates the working frequency of the frequency converter according to the feedback pressure of the water outlet pipeline 3 and the set pressure value and transmits the working frequency to the small frequency converter I8 and the small frequency converter II 9 through a serial port, and at the moment, the system works in a double small pump mode. In the double-small pump working mode, if the actual operating frequency of the double-small pump is larger than the pump increasing frequency Psmall-large set by the system and the continuous duration time is larger than the pump increasing delay time set by the system, the system turns off the small frequency converter I8 and the small frequency converter II 9, starts the smallest water pump in the accumulated operating time in the large frequency converter I10, the large frequency converter II 11 and the large frequency converter III 12, the starting frequency of the large pump is directly given (forty-two hertz) by the system in order to prevent the condition of pressure fluctuation, and after the large pump is started and stably operated, the operating frequency of the large pump is calculated by the singlechip according to the pressure feedback value and the set value through a PID algorithm, and the system works in the single-large pump working mode. Similar to the pump up mode above, the system enters the "dual pump" and "tri pump" modes of operation when the actual operating frequency of the system is greater than the pump up frequency set by the system and the duration of the continuous time is greater than the pump up delay time set by the system.
When the system works in the three-big pump working mode, if the working frequency of the big frequency converter I10, the big frequency converter II 11 and the big frequency converter III 12 is smaller than the pump reduction frequency set by the system and the continuous duration is longer than the pump reduction delay time set by the system, the system turns off the water pump with the longest accumulated running time in the big frequency converter I10, the big frequency converter II 11 and the big frequency converter III 12, and then the system enters the double-big pump working mode. In the 'double big pump' working mode, if the working frequency of the two big pumps is smaller than the pump-reducing frequency set by the system and the continuous duration is longer than the pump-reducing delay time set by the system, the system turns off the water pump with long accumulated running time in the two big pumps, and then the system enters the 'single big pump' working mode. Similar to the pump-down mode above, the system enters the "dual pump-down" and "Shan Xiaobeng" modes of operation when the actual operating frequency of the system is less than the pump-down system set by the system and the duration of the continuous time is greater than the pump-down time set by the system.
Under the 'Shan Xiaobeng' working mode, if the pressure of the water outlet pipeline 3 meets the set pressure requirement, the running frequency of the frequency converter is lower than the sleep frequency (thirty-five hertz) set by the system and the duration exceeds the sleep delay time set by the system, the system enters a 'sleep' state, and at the moment, only the communication module of the frequency converter is kept to normally work so as to realize the communication work with the singlechip, so that the energy consumption of the system is reduced to the greatest extent.
When the system is in a dormant state, if a large water demand occurs in a pump room at the moment, when the actual water outlet pressure of the water outlet pipeline 3 is lower than the wake-up pressure set by the system and the duration exceeds the wake-up delay time set by the system, the system starts to wake-up the system, and the small pump with smaller accumulated running time in the small frequency converter I8 and the small frequency converter II 9 is started and put into normal operation.
In order to ensure that the working time can be reasonably distributed by the water pump, the problem that equipment faults are easy to occur due to overlong running time of a certain water pump is prevented, the system can set the continuous running pump cutting time (four hours), namely when the system works in a 'Shan Xiaobeng', 'single big pump' and 'double big pump' working mode, if the single continuous running time of the certain water pump exceeds the pump cutting time, the system stops the working of the water pump, and the water pump with small accumulated running time is replaced to put into working.
In order to reduce the influence of numerical fluctuation caused by unit conversion, range conversion and the like on the working frequency calculation of the frequency converter and the judgment of increasing and decreasing pumps in the analog quantity acquisition process, the system calculates the analog quantity by adopting weighted average calculation according to the distance degree of acquisition time.
In order to save energy and reduce consumption to the greatest extent, the system designs a time-sharing water supply function according to the pressure demand characteristics of secondary water supply, and provides a pressure segmentation setting function of five time periods, namely, a user can respectively set different target pressure settings of five different time periods in one day according to the water supply characteristics of a secondary pump house, and the start-stop time and the pressure of the time periods can be set through the touch screen 7, so that high-pressure water supply is adopted during water use peaks and low-pressure water supply is adopted during water use valleys.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a secondary pressurization system, its characterized in that includes water tank (1), outlet conduit (3), switch board and water pump package, and water pump package is connected with the switch board, and the inside fixed mounting of water tank (1) has liquid level sensor (2), is provided with pressure sensor (4) on outlet conduit (3), liquid level sensor (2) and pressure sensor (4) are connected with the switch board through I/O line.
2. A secondary boost system according to claim 1, wherein: the control cabinet comprises a cabinet body and a singlechip (5), an electric power monitor (6), a touch screen (7) and a frequency converter group which are arranged in the cabinet body, wherein a liquid level sensor (2) and a pressure sensor (4) are connected with the singlechip (5) through I/O lines, the singlechip (5) is respectively connected with the frequency converter group, the electric power monitor (6) and the touch screen (7) through network lines, and the frequency converter group is connected with a water pump group.
3. A secondary boost system according to claim 1, wherein: the frequency converter group comprises a first small frequency converter (8), a second small frequency converter (9), a first large frequency converter (10), a second large frequency converter (11) and a third large frequency converter (12), wherein the first small frequency converter (8), the second small frequency converter (9), the first large frequency converter (10), the second large frequency converter (11) and the third large frequency converter (12) are respectively connected with the single chip microcomputer (5) through network cables.
4. A secondary boost system according to claim 3, wherein: the water pump group comprises a first water pump (13), a second water pump (14), a third water pump (15), a fourth water pump (16) and a fifth water pump (17), wherein the first water pump (13) and the second water pump (14) are respectively connected with the first small frequency converter (8) and the second small frequency converter (9), and the first large frequency converter (10), the second large frequency converter (11) and the third large frequency converter (12) are respectively connected with the third water pump (15), the fourth water pump (16) and the fifth water pump (17).
5. A secondary boost system according to claim 1, wherein: the frequency converter group, the power monitor (6) and the touch screen (7) are communicated with the singlechip (5) by adopting an RS485 serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322571899.XU CN220768256U (en) | 2023-09-21 | 2023-09-21 | Secondary supercharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322571899.XU CN220768256U (en) | 2023-09-21 | 2023-09-21 | Secondary supercharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220768256U true CN220768256U (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322571899.XU Active CN220768256U (en) | 2023-09-21 | 2023-09-21 | Secondary supercharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220768256U (en) |
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2023
- 2023-09-21 CN CN202322571899.XU patent/CN220768256U/en active Active
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