CN203846556U - Pressure stabilizing compensation-type non-negative pressure water supply equipment - Google Patents
Pressure stabilizing compensation-type non-negative pressure water supply equipment Download PDFInfo
- Publication number
- CN203846556U CN203846556U CN201420259950.1U CN201420259950U CN203846556U CN 203846556 U CN203846556 U CN 203846556U CN 201420259950 U CN201420259950 U CN 201420259950U CN 203846556 U CN203846556 U CN 203846556U
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- water
- pressure
- stabilizing compensation
- pressure sensor
- pressure stabilizing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Control Of Fluid Pressure (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses pressure stabilizing compensation-type non-negative pressure water supply equipment which comprises a control system, a water inlet pipeline, a pressure stabilizing compensation tank and a constant-pressure stabilizing system. The control system comprises a human-machine interface, a PLC (programmable logic controller), a frequency converter 1 and a frequency converter 2, one end of the water inlet pipeline is connected with a municipal water supply pipe network, the other end of the water inlet pipeline is connected to the left upper portion of the pressure stabilizing compensation tank, an inlet water pressure sensor, a negative-pressure suppressor and a liquid level sensor are further connected onto the pressure stabilizing compensation tank, the constant-pressure stabilizing system is connected onto a lower water outlet pipe of the pressure stabilizing compensation tank and comprises two water pumps, a straight pipeline, an outlet water pressure sensor and a diaphragm-type air pressure tank, and the PLC receives control signals of the human-machine interface and detects information of the inlet water pressure sensor, the negative-pressure suppressor, the outlet water pressure sensor, the liquid level sensor and a flow meter. The pressure stabilizing compensation-type non-negative pressure water supply equipment has the advantages that the frequency converters are controlled by programs of the PLC, so that the water pumps can run; operation and state information can be displayed on the human-machine interface, the equipment is low in investment and convenient to mount and operate, and is environmental friendly, and energy can be saved.
Description
Technical field
The utility model relates to water supply pressurized equipment field, especially a kind of stabilizing compensation formula non-negative pressure water-supply installation.
Background technology
At present, along with the quickening of urbanization process, city area is increasing, build more and more higher, affected by this, the laying area of city tap-water company city planting ductwork is also increasing, the distance of water place and Running-water Company's water supply point is more and more far away, certainly will cause the overall pressure of supply water of water supply network more and more lower, in city, the place of pressure of supply water deficiency is also just more and more, in the situation that water factory's discharge pressure cannot improve, what many places had increased storage-type secondary water-supply structure or employing immediately is that the mode supplying water without negative pressure pressurization supplies water;
The application of traditional water supply equipment is very extensive, but weak point be: due to the restriction of water supply chamber and water tank volume, retaining in water tank can only meet the water demand of the water use peak phase user in the short time, after the retaining in water tank is finished, just stop supplying water, when retaining reach a certain amount of after just again start supply water, very trouble, can not meet the round-the-clock user's request of user.
Utility model content
Based on above current demand and traditional shortcoming without negative pressure pressurization supply equipment; technical problem to be solved in the utility model is to provide a kind of without building pond, water tank and pump house; can prevent that water quality is contaminated; and the compensation non-negative pressure water-supply installation of a kind of Intellight voltage-stabilizing with water-shortage protection device simple in structure, reasonable in design, easy to use.
Stabilizing compensation formula non-negative pressure water-supply installation of the present utility model comprises control system, inlet pipeline, stabilizing compensation tank and constant voltage systems stabilisation, and wherein control system comprises man-machine interface, PLC, frequency converter 1 and frequency converter 2;
Inlet pipeline one end connects municipal network water supply, and one end is connected to the upper left quarter of stabilizing compensation tank, also connects intake pressure sensor, negative pressure inhibition device and liquid level sensor on stabilizing compensation tank;
Constant voltage systems stabilisation is connected on the bottom outlet pipe of stabilizing compensation tank, comprises 1# water pump, 2# water pump, straight-through pipeline, discharge pressure sensor and diaphragm-type air-compressed tank;
On user's feed pipe, also connect a flow meter, in order to the total water yield of checkout equipment;
The PLC of stabilizing compensation formula non-negative pressure water-supply installation of the present utility model receives the control signal of man-machine interface, and detect the information of intake pressure sensor, negative pressure inhibition device, discharge pressure sensor, liquid level sensor and flow meter, by the operation of whole equipment of PLC programme-control, and by some information Real-time Feedback and be presented in man-machine interface to observe with operating personnel;
Frequency converter 1 and frequency converter 2 according to pressure sensor signal control respectively 1# water pump and 2# water pump startup, accelerate and stop etc. the operation of state, when intake pressure sensor detected pressures is lower than setting when discharge pressure, start 1# water pump by low-limit frequency operation, if when now discharge pressure sensor detected pressures is still lower than setting discharge pressure, frequency converter 1 increases FREQUENCY CONTROL 1# water pump Accelerating running gradually, until detected pressures equals to set discharge pressure.As be increased to highest frequency discharge pressure still lower than setting pressure, control frequency converter 2 and start 2# water pump and increase frequency gradually until discharge pressure reaches setting pressure; During higher than setting pressure, reduce frequency as discharge pressure; As having a power failure or intake pressure sensor detects intake pressure during higher than setting pressure, system closing pump group, utilizes straight-through pipeline directly to supply water;
If long-time of equipment needs a pump working, system can be according to the other water pump operation that automatically switches running time, and within such two days, water pump is for subsequent use each other, can greatly increase the application life of equipment;
If it is minimum that municipal network water supply lack of water causes stabilizing compensation tank water level to drop to, liquid level sensor can detect and send a signal to PLC, and PLC control system is shut down and shown signal of water shortage in man-machine interface.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the utility model stabilizing compensation formula non-negative pressure water-supply installation;
Wherein accompanying drawing 1 is labeled as: 1. control system, 2. man-machine interface, 3 inlet pipelines, 4. intake pressure sensor, 5. negative pressure inhibition device, 6. stabilizing compensation tank, 7.1# water pump, 8. straight-through pipeline, 9.2# water pump, 10. discharge pressure sensor, 11. diaphragm-type air-compressed tanks, 12. flow meters, 13. user's feed pipes, 14. liquid level sensors, 15. frequency converters 2,16. frequency converters 1,17.PLC.
Detailed description of the invention
Stabilizing compensation formula non-negative pressure water-supply installation of the present utility model shown in Figure 1, comprises control system 1, inlet pipeline 2, stabilizing compensation tank 6 and constant voltage systems stabilisation, and wherein control system 1 comprises man-machine interface 2, PLC17 and two frequency converters;
Inlet pipeline 3 one end connect municipal network water supply, and one end is connected to the upper left quarter of stabilizing compensation tank 6, also connects intake pressure sensor 4, negative pressure inhibition device 5 and liquid level sensor 14 on stabilizing compensation tank 6;
Constant voltage systems stabilisation is connected on the bottom outlet pipe of stabilizing compensation tank 6, comprises 1# water pump 7,2# water pump 9, straight-through pipeline 8, discharge pressure sensor 10 and diaphragm-type air-compressed tank 11;
On user's feed pipe 13, also connect a flow meter 12, in order to the total water yield of checkout equipment.
Stabilizing compensation formula non-negative pressure water-supply installation PLC17 of the present utility model receives the control signal of man-machine interface 2, and detect the information of intake pressure sensor 4, negative pressure inhibition device 5, discharge pressure sensor 10, liquid level sensor 14 and flow meter 12, by the operation of whole equipment of PLC programme-control, and by some information Real-time Feedback and be presented in man-machine interface 2 to observe with operating personnel;
Two frequency converters 15 and 16 according to pressure sensor signal control respectively 1# water pump 7 and 2# water pump 9 startup, accelerate and stop etc. the operation of state, when intake pressure sensor 4 detected pressures are lower than setting when discharge pressure, start 1# water pump 7 by low-limit frequency operation, if when now discharge pressure sensor 10 detected pressures are still lower than setting discharge pressure, frequency converter 1 (16) increases FREQUENCY CONTROL 1# water pump Accelerating running gradually, until detected pressures equals to set discharge pressure.As be increased to highest frequency discharge pressure still lower than setting pressure, control frequency converter 2 (15) and start 2# water pump and increase frequency gradually until discharge pressure reaches setting pressure; During higher than setting pressure, reduce frequency as discharge pressure; As having a power failure or intake pressure sensor detects intake pressure during higher than setting pressure, system closing pump group, utilizes straight-through pipeline directly to supply water;
If it is minimum that municipal network water supply lack of water causes stabilizing compensation tank 6 water levels to drop to, liquid level sensor 14 can detect and send a signal to PLC17, and PLC17 control system is shut down and shown signal of water shortage in man-machine interface 2.
Claims (1)
1. a stabilizing compensation formula non-negative pressure water-supply installation, comprise control system, inlet pipeline, stabilizing compensation tank and constant voltage systems stabilisation, wherein control system comprises man-machine interface, PLC, frequency converter 1 and frequency converter 2, inlet pipeline one end connects municipal network water supply, one end is connected to the upper left quarter of stabilizing compensation tank, also connects intake pressure sensor, negative pressure inhibition device and liquid level sensor on stabilizing compensation tank;
Described constant voltage systems stabilisation is connected on the bottom outlet pipe of stabilizing compensation tank, comprises 1# water pump, 2# water pump, straight-through pipeline, discharge pressure sensor and diaphragm-type air-compressed tank, has also connected a flow meter, in order to the total water yield of checkout equipment on user's feed pipe;
Described PLC is connected in man-machine interface by RS232 connection, and connect intake pressure sensor, negative pressure inhibition device, discharge pressure sensor, liquid level sensor and flow meter by holding wire, PLC also connects two frequency converters by control circuit, and frequency converter 1 is connected respectively 1# water pump and 2# water pump with frequency converter 2 by power cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259950.1U CN203846556U (en) | 2014-05-21 | 2014-05-21 | Pressure stabilizing compensation-type non-negative pressure water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259950.1U CN203846556U (en) | 2014-05-21 | 2014-05-21 | Pressure stabilizing compensation-type non-negative pressure water supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846556U true CN203846556U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259950.1U Expired - Fee Related CN203846556U (en) | 2014-05-21 | 2014-05-21 | Pressure stabilizing compensation-type non-negative pressure water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203846556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431144A (en) * | 2021-06-23 | 2021-09-24 | 上海邦浦实业集团有限公司 | Hydraulic detection system and detection method for secondary water supply equipment |
| CN113485495A (en) * | 2021-07-08 | 2021-10-08 | 珠海格力电器股份有限公司 | Control method and device of water tank, water circulation heat exchange system, medium and processor |
-
2014
- 2014-05-21 CN CN201420259950.1U patent/CN203846556U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431144A (en) * | 2021-06-23 | 2021-09-24 | 上海邦浦实业集团有限公司 | Hydraulic detection system and detection method for secondary water supply equipment |
| CN113485495A (en) * | 2021-07-08 | 2021-10-08 | 珠海格力电器股份有限公司 | Control method and device of water tank, water circulation heat exchange system, medium and processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: CHONGQING WOFU WATER SERVICE CO.,LTD. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 |