CN209989873U - Power frequency constant-pressure emergency water supply device of intelligent water supply system - Google Patents
Power frequency constant-pressure emergency water supply device of intelligent water supply system Download PDFInfo
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- CN209989873U CN209989873U CN201920390428.XU CN201920390428U CN209989873U CN 209989873 U CN209989873 U CN 209989873U CN 201920390428 U CN201920390428 U CN 201920390428U CN 209989873 U CN209989873 U CN 209989873U
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Abstract
The utility model provides an emergent water supply installation of intelligence water supply system power frequency constant voltage, including water supply pump package and connect respectively at the water supply pump package inlet tube and the water supply pump package outlet pipe at water supply pump package both ends, it has the wet return to connect in parallel between water supply pump package inlet tube and water supply pump package outlet pipe, installs electric control valve on the wet return, electric control valve's control line link to each other with the DA converter on the power frequency controller, power frequency controller's input port links to each other with change over switch simultaneously, power frequency controller's delivery outlet links to each other with one or more power frequency switching contactor. The utility model discloses a power frequency controller realizes the emergent water supply of power frequency constant voltage, can be emergent immediately and guarantee normal water supply, avoids the time course of cutting off the water supply, has greatly reduced maintenance pressure.
Description
Technical Field
The utility model relates to an emergent water supply installation of intelligence water supply system power frequency constant voltage belongs to intelligent water supply equipment technical field.
Background
At present, intelligent constant-pressure water supply equipment taking a frequency converter as a core is widely applied to various water supply occasions. In practical application, once a frequency converter, a controller, a pressure sensor and the like have faults, water supply can be stopped. The maintenance or replacement of the above components requires a long time, resulting in an excessively long water cut-off time and increased user dissatisfaction.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an emergent water supply installation of intelligence water supply system power frequency constant voltage, the device realize the emergent water supply of power frequency constant voltage through the power frequency controller when converter, controller, pressure sensor break down in intelligent water supply system, carry out the equipment maintenance when guaranteeing to carry out timely emergent water supply to the user.
The utility model is achieved by the following concrete technical means: the utility model provides an emergent water supply installation of intelligence water supply system power frequency constant voltage, includes the water supply pump package and connects respectively at the water supply pump package inlet tube and the water supply pump package outlet pipe that supply the pump package both ends, has the wet return in parallel between water supply pump package inlet tube and the water supply pump package outlet pipe, installs electric control valve on the wet return, electric control valve's control line link to each other with the D/A converter on the power frequency controller, the input port of power frequency controller links to each other with change over switch simultaneously, the delivery outlet of power frequency controller links to each other with one or more power frequency switching contactor.
Furthermore, a pressure sensor is arranged on a water outlet pipe of the water supply pump set, and a signal wire of the pressure sensor is connected with an A/D converter on the power frequency controller.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a power frequency controller realizes the emergent water supply of power frequency constant voltage, can meet an urgent need promptly and guarantee normal water supply, avoids the outage time overlength, has greatly reduced maintenance pressure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: 1-a water supply pump set water inlet pipe, 2-a water supply pump set, 3-a water supply pump set water outlet pipe, 4-a water return pipe, 5-an electric regulating valve, 6-a change-over switch, 7-a pressure sensor, 8-a power frequency controller and 9-a power frequency switching contactor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1: the utility model provides an emergent water supply installation of intelligence water supply system power frequency constant voltage, including water supply pump package 2 and connect respectively at water supply pump package inlet tube 1 and the water supply pump package outlet pipe 3 at 2 both ends of water supply pump package, it has wet return 4 to supply water pump package inlet tube 1 and water supply pump package outlet pipe 3 between in parallel, installs electrical control valve 5 on wet return 4, electrical control valve 5's control line link to each other with the DA converter on the power frequency controller 8, power frequency controller 8's input port links to each other with change over switch 6 simultaneously, power frequency controller 8's delivery outlet links to each other with two power frequency switch contactors 9. And a water outlet pipe 3 of the water supply pump set is provided with a pressure sensor 7, and a signal line of the pressure sensor 7 is connected with an A/D converter on the power frequency controller 8.
The working principle of the utility model is as follows: when a frequency converter or PCL or other elements in the water supply equipment are damaged, the change-over switch 6 is switched on, the power frequency controller 8 outputs a control signal to the electric regulating valve 5 through the D/A, and the electric regulating valve 5 controls the opening degree to be a proper value (the electric regulating valve 5 is in a full-closed state when the intelligent water supply system supplies water normally) so that the water outlet pressure value of the water supply pump set 2 is not suddenly increased when the power frequency operates to cause damage to a pipe network or water using equipment. Then, the power frequency controller 8 drives the power frequency switching contactor 9 to work through an output port, so that the water supply pump set 2 runs in a power frequency state, meanwhile, the pressure sensor 7 transmits the pressure value of the water outlet end of the water outlet pipe 3 of the water supply pump set to the A/D converter of the power frequency controller 8, the A/D converter converts the pressure signal into a digital quantity and transmits the digital quantity to the power frequency controller 8, the power frequency controller 8 compares the received pressure value of the water outlet end with a set pressure value, and performs PID operation on the result value to obtain an opening control value of the electric regulating valve 5, and the D/A converter controls the opening of the electric regulating valve 5 after conversion, so that the return water flow of the water inlet end and the water outlet end of the water supply pump set 2 can change along with the opening change of the: the increase of the return water flow will lead to the pressure drop at the water outlet end of the water supply pump set 2, and the decrease of the return water flow will lead to the pressure increase at the water outlet end of the water supply pump set 2. Therefore, the opening of the electric regulating valve 5 is regulated in real time according to the pressure value of the water outlet end of the water supply pump set 2 and the set pressure value, and the purpose of keeping the pressure value of the water outlet end constant can be achieved.
Claims (2)
1. The utility model provides an emergent water supply installation of intelligence water supply system power frequency constant voltage, includes water supply pump package (2) and connects water supply pump package inlet tube (1) and water supply pump package outlet pipe (3) at water supply pump package (2) both ends respectively, its characterized in that: have wet return (4) in parallel between water supply pump package inlet tube (1) and water supply pump package outlet pipe (3), install electrical control valve (5) on wet return (4), the control line of electrical control valve (5) link to each other with the D/A converter on power frequency controller (8), the input port of power frequency controller (8) links to each other with change over switch (6) simultaneously, the delivery outlet of power frequency controller (8) links to each other with one or more power frequency switching contactor (9).
2. The power frequency constant pressure emergency water supply device of the intelligent water supply system according to claim 1, wherein: and a water outlet pipe (3) of the water supply pump set is provided with a pressure sensor (7), and a signal line of the pressure sensor (7) is connected with an A/D converter on the power frequency controller (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390428.XU CN209989873U (en) | 2019-03-26 | 2019-03-26 | Power frequency constant-pressure emergency water supply device of intelligent water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390428.XU CN209989873U (en) | 2019-03-26 | 2019-03-26 | Power frequency constant-pressure emergency water supply device of intelligent water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209989873U true CN209989873U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920390428.XU Active CN209989873U (en) | 2019-03-26 | 2019-03-26 | Power frequency constant-pressure emergency water supply device of intelligent water supply system |
Country Status (1)
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| CN (1) | CN209989873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677044A (en) * | 2020-05-11 | 2020-09-18 | 首钢集团有限公司 | Regional constant pressure water supply system of hot continuous rolling line casting machine |
| CN114477330A (en) * | 2022-02-22 | 2022-05-13 | 通用净水科技(宁波)有限公司 | Constant-pressure water supply system for water purifier |
-
2019
- 2019-03-26 CN CN201920390428.XU patent/CN209989873U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677044A (en) * | 2020-05-11 | 2020-09-18 | 首钢集团有限公司 | Regional constant pressure water supply system of hot continuous rolling line casting machine |
| CN111677044B (en) * | 2020-05-11 | 2021-10-26 | 首钢集团有限公司 | Regional constant pressure water supply system of hot continuous rolling line casting machine |
| CN114477330A (en) * | 2022-02-22 | 2022-05-13 | 通用净水科技(宁波)有限公司 | Constant-pressure water supply system for water purifier |
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Effective date of registration: 20200908 Address after: No.15, unit 1, No.45, Shinan Road, Nanming District, Guiyang City, Guizhou Province Patentee after: Guizhou hi tech Nanfang special pump Sales Co.,Ltd. Address before: 550001, Songshan Road, Yunyan District, Guizhou, Guiyang 51 Co-patentee before: Luo Tingzhang Patentee before: Wei Yuanliang Co-patentee before: Wu Hao |