CN214657446U - Non-negative pressure and constant-pressure frequency conversion automatic switching water supply system - Google Patents
Non-negative pressure and constant-pressure frequency conversion automatic switching water supply system Download PDFInfo
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- CN214657446U CN214657446U CN202121019227.2U CN202121019227U CN214657446U CN 214657446 U CN214657446 U CN 214657446U CN 202121019227 U CN202121019227 U CN 202121019227U CN 214657446 U CN214657446 U CN 214657446U
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model discloses a non-negative pressure and constant pressure variable frequency automatic switching water supply system, which comprises a pressure-bearing water storage tank, a pump set and a buffer tank, wherein the front end of the pressure-bearing water storage tank is provided with a municipal water supply interface, the rear end of the pressure-bearing water storage tank is connected with a water pump inlet manifold, the water pump inlet manifold is connected with the front end of the pump set through a water inlet valve in front of the pump, and the rear end of the pump set is connected with a water outlet manifold through a check valve and a water outlet valve in back of the pump in sequence; the pump unit is connected with a control cabinet, an operation interface is arranged on the control cabinet, and a PLC is arranged in the control cabinet; the left end and the right end of the water outlet main pipe are respectively provided with a pressurizing water supply pipe interface, and the buffer tank is connected with the water outlet main pipe through an air pipe. The utility model discloses have two kinds of modes of frequency conversion water supply equipment and no negative pressure water supply equipment and supply water, can be according to running water pressure of intaking and flow automatic switch-over.
Description
Technical Field
The utility model relates to a water supply system technical field specifically relates to a no negative pressure and constant voltage frequency conversion automatic switch-over water supply system.
Background
Along with the urban development, high-rise buildings are more and more, the tap water pressure is insufficient, the daily requirement of residents such as the high-rise buildings, residential quarters, villas and the like on secondary pressurized water supply is met, the secondary pressurized water supply system for most of buildings, schools, hotels and government enterprises in the market can only select one of two schemes of non-negative pressure water supply and constant pressure variable frequency water supply according to the requirement, the two water supply systems have the advantages and disadvantages of the two water supply systems, and the existing non-negative pressure secondary pressurization sometimes stops water due to unstable tap water pressure, so that the high-rise water stop is caused, and the water use is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a no negative pressure and constant voltage frequency conversion automatic switch-over water supply system guarantee that it can more be fit for the water supply system that more matches by automatic switch-over under the condition of difference, and efficiency, benefit, rationality performance to the maximize, more nimble on the aspect that the secondary pressurizes the water supply.
In order to achieve the above purpose, the utility model has the following technical effects:
a negative-pressure-free and constant-pressure variable-frequency automatic switching water supply system comprises a pressure-bearing water storage tank, a pump set and a buffer tank, wherein a municipal water supply interface is arranged at the front end of the pressure-bearing water storage tank, the rear end of the pressure-bearing water storage tank is connected with a water pump water inlet main pipe, the water pump water inlet main pipe is connected with the front end of the pump set through a water inlet valve in front of a pump, and the rear end of the pump set is connected with a water outlet main pipe through a check valve and a water outlet valve in back of the pump in sequence; the pump unit is connected with a control cabinet, an operation interface is arranged on the control cabinet, and a PLC is arranged in the control cabinet; the left end and the right end of the water outlet main pipe are respectively provided with a pressurizing water supply pipe interface, the buffer tank is connected with the water outlet main pipe through an air pipe, and a remote transmission pressure gauge is arranged above the water outlet main pipe.
Further, the pump group comprises a first well pump and a second well pump, and the first well pump and the second well pump are arranged side by side.
Furthermore, at least two exhaust valves are arranged above the pressure-bearing water storage tank, and a pressure sensor is also arranged above the pressure-bearing water storage tank.
Furthermore, a floating ball is arranged inside the pressure-bearing water storage tank.
Further, a liquid level sensor is arranged inside the pressure-bearing water storage tank and is in communication connection with the PLC, and the liquid level sensor is used for detecting the water level in the pressure-bearing water storage tank.
Furthermore, the volume specification of the pressure-bearing water storage tank is 15 cubic meters.
Further, an air bag is arranged in the buffer tank.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a general water supply equipment water peak period or have not the water when having a power failure and use the scheduling problem, have pond (water tank) formula frequency conversion water supply equipment and have two kinds of modes of negative pressure pipe network pressure-superposed water supply equipment water supply, can be according to running water intake pressure and flow automatic switch-over, the production of municipal pipe network negative pressure has not only been avoided to this kind of operational mode to but also can make full use of municipal pipe network water supply pressure, it is different little, how much to mend, do not produce the negative pressure, can save energy by 30% ~ 70% compared with traditional pond (water tank) formula frequency conversion water supply equipment;
the timing updating function: the control system automatically renews the water in the pressure-bearing water tank at regular time so as to keep the freshness of the water in the pressure-bearing water tank;
automatic off-peak water supply function: when the water consumption peak comes, the control system automatically switches to a variable frequency water supply mode according to the signal of the urban network sensor, and automatically switches back to a non-negative pressure water supply equipment mode after the water consumption peak, so that the problem of unstable water supply pressure and flow in the peak time is fundamentally solved;
the operation is reliable: the municipal pipe network hydraulic water supply can be maintained when power is cut off; when the water consumption peak or the tap water is cut off, the water is supplied by the water tank, thereby greatly improving the reliability of the water supply of users and completely conforming to the tap water supply standard. The water supply continuity is ensured, and the water supply device is an energy-saving, environment-friendly and reliable product.
Drawings
FIG. 1 is a top view of the water supply system of the present invention;
fig. 2 is a left side view of the water supply system of the present invention.
Reference numerals: 1-pressure-bearing water storage tank, 101-municipal water supply interface, 102-exhaust valve, 2-water pump inlet manifold, 201-front pump inlet valve, 3-first well pump, 4-second well pump, 5-control cabinet, 501-operation interface, 6-water outlet manifold, 601-pressurization water supply pipe interface, 602-water stop valve, 603-rear pump outlet valve and 7-buffer tank.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model provides a no negative pressure and constant voltage frequency conversion automatic switch-over water supply system, as shown in fig. 1 to 2, including pressure-bearing water storage tank 1, the pump package, buffer tank 7, the front end of pressure-bearing water storage tank 1 is equipped with municipal water supply interface 101, the rear end of pressure-bearing water storage tank 1 is connected with water pump inlet manifold 2, water pump inlet manifold 2 passes through the front end that water inlet valve 201 connects the pump package before the pump, the rear end of pump package loops through check valve 602, outlet valve 603 connects outlet manifold 6 behind the pump, wherein when rivers get into outlet manifold 6 from water pump inlet manifold 2, rivers are forward flow, check valve 602 is automatic to be opened and let water flow through, if rivers lead to the backward flow phenomenon from outlet manifold 6 flow to water pump inlet manifold 2, check valve 602 can close and prevent the water backward flow.
The pump set is connected with a control cabinet 5, an operation interface 6 is arranged on the control cabinet 5 and used for controlling the start and stop of the pump set, automatic operation and manual operation, controlling the operation frequency of the water pump, setting the water outlet pressure, and simultaneously displaying the parameters of the water inlet pressure, the water outlet pressure, the liquid level of the pressure-bearing tank, the current frequency of the pump set, the start and stop state of the pump set and the like, wherein the secondary water supply system does not control the water quantity and conveys water to a high-level user unit through pressurization or overlying pressure by the pump set. Wherein the pump group comprises a first well pump 3 and a second well pump 4, and the first well pump 3 and the second well pump 4 are arranged side by side.
A PLC is arranged in the control cabinet 5; both ends all are equipped with pressurization water supply pipe interface 601 about the water header 6, and surge tank 7 passes through a trachea and connects water header 6 for the buffer system pressure oscillation eliminates the water hammer and plays the effect of steady voltage off-load, is equipped with the teletransmission manometer above water header 6.
At least two exhaust valves 102 are arranged above the pressure-bearing water storage tank 1.
An exhaust valve floating ball is arranged in the pressure-bearing water storage tank 1.
A liquid level sensor is arranged inside the pressure-bearing water storage tank 1 and is in communication connection with a PLC (programmable logic controller) for detecting the water level in the pressure-bearing water storage tank 1.
The volume specification of the pressure-bearing water storage tank 1 is 15 cubic meters.
The air bag is arranged in the buffer tank 7 and used for buffering kinetic energy impact of water flow, when water pressure in the system slightly changes, automatic expansion and contraction of the air bag can have certain buffering effect on changes of the water pressure, the water pressure stability of the system can be guaranteed, and the pump set cannot be frequently opened due to changes of the pressure.
Water flow enters the pressure-bearing water storage tank 1 from the municipal water supply interface 101 to be stored, a liquid level sensor in the pressure-bearing water storage tank detects water level change in the pressure-bearing water storage tank 1, when the pressure-bearing water storage tank 1 is filled with water, a floating ball of the pressure-bearing water storage tank 1 jacks up to close the exhaust valve 102, when the liquid level sensor in the pressure-bearing water storage tank 1 detects that the water level in the pressure-bearing water storage tank 1 is lower than a warning line, a signal is sent to a PLC in the control cabinet 5, then the first well pump 3 and the second well pump 4 are stopped to operate, and in the process, a water inlet valve 201 before the pump and a water outlet valve 603 after the pump need to be manually opened to control water flow.
When municipal water supply pressure is normal, the inflow is greater than when the user's water consumption, water supply system's operating condition is no negative pressure water supply this moment, so the water level of pressure-bearing water storage tank 1 constantly rises because the inflow is greater than the water consumption, air in the pressure-bearing water storage tank 1 constantly discharges through discharge valve 102, until being full of water in the pressure-bearing water storage tank 1, discharge valve 102 is closed in the jack-up of discharge valve floater this moment, pressure-bearing water storage tank 1 is airtight state this moment, 1 internal pressure of pressure-bearing water storage tank is the same with municipal pipe network pressure, pump package work only needs to stack pressure on original municipal pressure's basis, pressurized water supply to the subscriber unit.
When municipal water supply pressure is not enough, the inflow is less than when user's water consumption, the operating condition of system does not have the constant voltage variable frequency water supply this moment, so be not full water state in the pressure-bearing water storage tank 1 this moment because the inflow is less than the water consumption, consequently the discharge valve floater falls down, open exhaust 102, make pressure-bearing water storage tank 1 communicate with each other with the atmosphere, do not produce the negative pressure in making pressure-bearing water storage tank 1, no pressure in the pressure-bearing water storage tank 1 this moment, so first well pump 3 and second well pump 4 do not have original municipal pressure stack, need add more pressure and supply water to the subscriber unit. A liquid level sensor in the pressure-bearing water storage tank 1 detects the water level in the pressure-bearing water storage tank 1, if the water level is lower than a warning line, a signal is sent to a PLC in a control cabinet 5, and then the first well pump 3 and the second well pump 4 are stopped to operate.
The pressure sensor detects the pressure before the pump, namely the water inlet pressure before the pump set is pressurized, and the remote transmission pressure gauge detects the pressure after the pump, namely the superposed pressure of the pump set or the water outlet pressure after pressurization. The buffer tank 7 is provided with an air bag inside, when the pump set stops working, the water supply pipe connected with the high-level user unit loses pressure, and water flow can flow back to impact the check valve 602.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope of the present invention defined by the appended claims.
Claims (7)
1. A non-negative-pressure and constant-pressure variable-frequency automatic switching water supply system comprises a pressure-bearing water storage tank, a pump set and a buffer tank, and is characterized in that a municipal water supply interface is arranged at the front end of the pressure-bearing water storage tank, the rear end of the pressure-bearing water storage tank is connected with a water pump water inlet main pipe, the water pump water inlet main pipe is connected with the front end of the pump set through a water inlet valve in front of a pump, and the rear end of the pump set is connected with a water outlet main pipe through a check valve and a water outlet valve in back of the pump in sequence; the pump unit is connected with a control cabinet, an operation interface is arranged on the control cabinet, and a PLC is arranged in the control cabinet; the left end and the right end of the water outlet main pipe are respectively provided with a pressurizing water supply pipe interface, the buffer tank is connected with the water outlet main pipe through an air pipe, and a remote transmission pressure gauge is arranged above the water outlet main pipe.
2. The negative pressure-free and constant pressure variable frequency automatic switching water supply system of claim 1, wherein the pump group comprises a first well pump and a second well pump, and the first well pump and the second well pump are arranged side by side.
3. The non-negative pressure and constant pressure variable frequency automatic switching water supply system of claim 1, wherein at least two exhaust valves are arranged above the pressure-bearing water storage tank, and a pressure sensor is further arranged above the pressure-bearing water storage tank.
4. The non-negative pressure and constant pressure variable frequency automatic switching water supply system of claim 1, wherein an exhaust valve floating ball is arranged inside the pressure-bearing water storage tank.
5. The system of claim 1, wherein a liquid level sensor is disposed inside the pressure-bearing water storage tank, and the liquid level sensor is in communication with the PLC for detecting the water level inside the pressure-bearing water storage tank.
6. The non-negative pressure and constant pressure variable frequency automatic switching water supply system of claim 1, wherein the volume specification of the pressure-bearing water storage tank is 15 cubic meters.
7. The non-negative pressure and constant pressure variable frequency automatic switching water supply system of claim 1, wherein an air bag is arranged in the buffer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019227.2U CN214657446U (en) | 2021-05-12 | 2021-05-12 | Non-negative pressure and constant-pressure frequency conversion automatic switching water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019227.2U CN214657446U (en) | 2021-05-12 | 2021-05-12 | Non-negative pressure and constant-pressure frequency conversion automatic switching water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214657446U true CN214657446U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121019227.2U Active CN214657446U (en) | 2021-05-12 | 2021-05-12 | Non-negative pressure and constant-pressure frequency conversion automatic switching water supply system |
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| CN (1) | CN214657446U (en) |
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2021
- 2021-05-12 CN CN202121019227.2U patent/CN214657446U/en active Active
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