CN113622482B - Intelligent constant-pressure variable-frequency water supply system and application method - Google Patents
Intelligent constant-pressure variable-frequency water supply system and application method Download PDFInfo
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- CN113622482B CN113622482B CN202110946995.0A CN202110946995A CN113622482B CN 113622482 B CN113622482 B CN 113622482B CN 202110946995 A CN202110946995 A CN 202110946995A CN 113622482 B CN113622482 B CN 113622482B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 311
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000005265 energy consumption Methods 0.000 claims abstract description 6
- 239000008399 tap water Substances 0.000 claims description 17
- 235000020679 tap water Nutrition 0.000 claims description 17
- 239000008400 supply water Substances 0.000 claims description 11
- 230000002542 deteriorative effect Effects 0.000 claims description 2
- 206010063385 Intellectualisation Diseases 0.000 abstract description 3
- 101000797623 Homo sapiens Protein AMBP Proteins 0.000 description 12
- 102100032859 Protein AMBP Human genes 0.000 description 12
- 102100028138 F-box/WD repeat-containing protein 7 Human genes 0.000 description 8
- 101001060231 Homo sapiens F-box/WD repeat-containing protein 7 Proteins 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 101150042711 adc2 gene Proteins 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- -1 BDC3 Proteins 0.000 description 1
- 102100021805 Enhancer of mRNA-decapping protein 4 Human genes 0.000 description 1
- 101000895665 Homo sapiens Enhancer of mRNA-decapping protein 4 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
- E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
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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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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Domestic Plumbing Installations (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
An intelligent constant-pressure variable-frequency water supply system comprises a constant-pressure secondary water supply system body, a water tank, an air pump, a stabilized voltage power supply, a storage battery A, pressure acquisition and control equipment, a first control circuit and a second control circuit; the pressure acquisition and control equipment comprises a pressure switch, a storage battery, an electromagnetic valve, a trigger sub-circuit and a switching power supply which are arranged together and electrically connected; the water tank is divided into two independent parts, and an air pump, an electromagnetic valve A, an electromagnetic valve B, an electromagnetic valve C, a pressure switch A, an electromagnetic valve B, a liquid level switch, a one-way air valve, an electromagnetic valve D, a liquid level switch A and an electromagnetic valve E are arranged on the water tank and are electrically connected with a storage battery and a trigger sub-circuit, a switching power supply and a booster pump which are arranged in the element box. An application method of an intelligent constant-pressure variable-frequency water supply system comprises four steps. The invention can reduce the excessive water pressure requirement on the booster pump, reduce the energy consumption of the booster pump, ensure the water consumption after power failure, has low cost, does not occupy the field space and realizes the intellectualization.
Description
Technical Field
The invention relates to the technical field of secondary water supply equipment and application methods, in particular to an intelligent constant-pressure variable-frequency water supply system and an application method.
Background
The constant-pressure variable-frequency secondary water supply system for high-rise building is a secondary water supply device which is widely used, municipal pipe network tap water under pressure flows into a water tank for storage in working, then a booster pump of the constant-pressure secondary water supply system is controlled by related equipment to pump water out of the water tank for pressurization, and the water is sent to high-rise building households of a user pipeline for use. In the working process, a control circuit board of the constant-pressure variable-frequency secondary water supply system can collect pressure switch pressure signals communicated with all user pipeline sides in real time (a plurality of building water inlet ends of residential communities and a single main water outlet end of a booster pump are respectively connected in parallel through pipelines, a pressure switch is arranged on one side of the single main water outlet end pipeline of the booster pump) and controls the working frequency of a motor output to the booster pump, when the water pressure collected by the pressure switch is low, the working frequency of the motor output by the control circuit board is relatively high, so that the water quantity and the water pressure output by the motor output by the pressure switch are relatively low when the water pressure collected by the pressure switch is high, the water quantity and the water pressure output by the motor output by the control circuit board are relatively low, and therefore, the purposes of meeting the requirement of water consumption of a plurality of single buildings and saving electric energy (when the total water pressure is proper) are met.
Although the existing constant-pressure variable-frequency secondary water supply system can achieve the purpose of saving electric energy to a certain extent according to a pressure switch signal installed on one side of a single main water outlet end pipeline of a booster pump and a working mode of controlling the booster pump, the following problems are needed to be solved due to the limited structure. The method comprises the following steps: the control circuit board collects signals of a pressure switch arranged on one side of a pipeline at the water outlet end of a single booster pump, water pressure data and control of each building in a residential district cannot be collected respectively, and because the heights of floors of the residential district are different, the booster pump uniformly increases consistent water pressure and water quantity for each building during operation, and unnecessary electric energy waste can be brought in practice (because relatively high water pressure is not needed for a low floor relative to a high floor, the work load of the booster pump is increased for providing unnecessary high water pressure for the low floor, and therefore, the electric energy waste can be caused). And two,: when the booster pump works, the booster pump completely depends on the supply of a power supply, and a user cannot use water due to the fact that the booster pump cannot work after power failure for a period of time; in the prior art, the air compressor is used for injecting pressure air into the water tank after power failure and driving tap water to supply water for high-rise households by water pressure in a period of time, but the air compressor is used for supplying compressed air for the water tank through the air compressor which is huge in size and high in cost and the matched air pump, so that the application has a larger disadvantage. In summary, it is necessary to provide an intelligent constant-pressure variable-frequency water supply system and an application method thereof, which can save more energy, ensure that users use tap water for a period of time after power failure, and do not occupy water supply area space and have low cost.
Disclosure of Invention
In order to overcome the defects that the existing constant-pressure secondary water supply system is limited by a structure, a control circuit board collects signals of a pressure switch arranged on one side of a pipeline at a main water outlet end of a booster pump, water pressure data and control of each building of a residential district cannot be collected respectively, because the heights of floors of the residential district are different, the booster pump uniformly increases consistent water pressure and water quantity for each building during operation, unnecessary electric energy waste can be brought to the fact that the booster pump can cause water failure of users in a section after power failure, the invention provides a constant-pressure secondary water supply system body, each building of the residential district is provided with pressure collection and control equipment, the pressure collection and control equipment of each building can be opened or closed according to the water pressure and water quantity set by the floor of the residential district, the control equipment and the electromagnetic valve connected with the main water outlet end of the booster pump in parallel, the water pressure requirement of the residential district is met, the water pressure requirement of the booster pump is reduced as much as possible (particularly low floor advantage is more obvious), the energy consumption of the booster pump is correspondingly reduced, the water can be supplied to users through a water distribution box automatically during power failure, the water distribution box is commonly used by the mechanism, and the water distribution box is pre-filled with the water tank through the water distribution box in advance under the common action of each mechanism, and the effect of the water distribution box is not required to be provided with the water tank, and the air pump is installed in a small-level space, and the water supply system occupies a small space, and has low cost, and can be installed in a small water supply system, and has a low-pressure space, and has low cost.
The technical scheme adopted for solving the technical problems is as follows:
an intelligent constant-pressure variable-frequency water supply system comprises a constant-pressure secondary water supply system body, a water tank, an air pump, a stabilized voltage power supply and a storage battery A, and is characterized by also comprising pressure acquisition and control equipment, a first control circuit and a second control circuit; the system comprises a pressure acquisition and control device, a pressure switch, a storage battery, an electromagnetic valve, a trigger sub-circuit and a switching power supply, wherein the pressure acquisition and control device comprises a plurality of sets of pressure switch, the storage battery, the electromagnetic valve, the trigger sub-circuit and the switching power supply; in each set of pressure acquisition and control equipment, the power output end of the trigger sub-circuit is electrically connected with the power input end of the electromagnetic valve, and the pressure switch signal output end is electrically connected with the signal power input end of the trigger sub-circuit; the water tank is divided into two independent parts, the air pump is arranged outside the water tank, the electromagnetic valve A is arranged on the exhaust pipe of the air pump, the other end of the electromagnetic valve A is connected with the air inlet pipe outside one side of the water tank, the electromagnetic valve B, the electromagnetic valve C and the pressure switch A are respectively arranged outside one side of the water tank, the other end of the electromagnetic valve B is connected with the tap water pipeline in parallel, and the liquid level switch is arranged in one side of the water tank; the other side of the water tank is externally provided with a one-way air valve and an electromagnetic valve D respectively, the other end of the electromagnetic valve D is connected with a municipal pipe network tap water pipeline in parallel, and the other side of the water tank is internally provided with a liquid level switch A; a water outlet pipe is arranged below one side, the other end of the water outlet pipe is connected with one end of an electromagnetic valve E, and the other end of the electromagnetic valve E is connected with one side of a pipeline of the total water outlet end of the booster pump of the constant-pressure secondary water supply system body in parallel; the stabilized voltage power supply, the first control circuit and the second control circuit are electrically controlled in the box; the trigger signal output end of the first control circuit is electrically connected with the power input end of the electromagnetic valve E, and the control power output end of the first control circuit is electrically connected with the power input end of the control circuit board of the constant-pressure secondary water supply system body; the first path of control power supply output end of the second control circuit is electrically connected with one end of the liquid level switch and one end of the pressure switch A, the other end of the pressure switch A is electrically connected with one end of the power supply input of the electromagnetic valve A, the other end of the liquid level switch is electrically connected with one end of the power supply input of the electromagnetic valve B and one end of the power supply input of the electromagnetic valve C, and the liquid level switch A is electrically connected in series between one end of the power supply input of the electromagnetic valve D; the second path of control power output end of the second control circuit is electrically connected with the power input end of the air pump; the application method of the intelligent constant-pressure variable-frequency water supply system comprises the following steps: a: the pressure switch installed in the multi-building sub-residential building with different building heights in the residential district collects the water pressure at the highest position of the user pipeline of each sub-residential building in real time, the electromagnetic valve is closed to prevent water from entering after the lowest water pressure is reached, and the electromagnetic valve is opened to enter water when the lowest water pressure is not reached, so that the water pressure requirement on the booster pump is reduced and the energy consumption of the booster pump is reduced on the premise of meeting the water requirement on the floor of the user; b: the first control circuit controls the constant pressure secondary water supply system body to stop working every a period of time, and the second control circuit controls the water stored in the water tank and having pressure to supply water uniformly for users, so that the water is prevented from deteriorating due to the fact that the water is stored too long: c: the second control circuit controls tap water to be filled into one side of the water tank, and controls the air pump to add compressed air into one side of the water tank; d: after the constant-pressure secondary water supply system body has a power failure, the first control circuit controls the water tank to uniformly supply water for users in one side, and the users can use water in a period of time when the water is stopped.
Further, the switching power supply of each set of pressure acquisition and control equipment is an alternating current-to-direct current switching power supply module; the electromagnetic valve, the electromagnetic valve A, the electromagnetic valve B, the electromagnetic valve C, the electromagnetic valve D and the electromagnetic valve E are normally closed valve core electromagnetic valves; the pressure switch and the pressure switch A are normally open contact pressure switches with adjustable pressure.
Further, the trigger sub-circuit of each set of pressure acquisition and control equipment comprises a resistor, an NPN triode and a relay which are electrically connected, wherein the positive power input end of the relay is connected with the control power input end, one end of the resistor is connected with the base electrode of the NPN triode, and the collector electrode of the NPN triode is connected with the negative power input end of the relay.
Further, the liquid level switch and the liquid level switch A are normally open contact type floating ball liquid level switches.
Further, the first control circuit comprises a time control switch, a relay and a diode which are electrically connected, wherein the power output end of the time control switch is respectively connected with the two ends of the power input of the first relay, the two control power input ends of the second relay are respectively connected with the two ends of the power input of the time control switch, and the two normally closed contact ends of the second relay are respectively connected with the anode of the first diode and the cathode of the second diode; the time control switch is a full-automatic microcomputer time control switch.
Further, the second control circuit comprises a time control switch and a relay which are electrically connected, wherein the power output end of the first time control switch is connected with the power input end of the second time control switch respectively, and the power output end of the second time control switch is connected with the power input end of the relay respectively.
The invention has the beneficial effects that: the invention is based on the constant-pressure secondary water supply system body and has all other functions of the constant-pressure secondary water supply system. In application, the pressure acquisition and control equipment of each building in the residential district can monitor the highest water pressure of the building in real time, the electromagnetic valve is opened to feed water when the water pressure is lower than the minimum, and the electromagnetic valve is closed when the water pressure is higher than the certain time, so that the requirement of the building for water consumption of the building can be reduced as much as possible (particularly, the advantage of the lower floor is more obvious) on the premise that the water consumption of the building is met, and the energy consumption of the booster pump is correspondingly reduced. According to the invention, the constant-pressure secondary water supply system body can be controlled to stop working every time, pressurized water stored in the water tank can be controlled to supply water uniformly for a user, the water deterioration caused by the long water storage time is prevented, tap water can be controlled to be injected into the left water tank, and the air pump is controlled to add pressure into the left water tank, so that the requirement of driving water pressure after water cut-off is ensured; after the constant-pressure secondary water supply system body has a power failure, water in the left water tank can supply water uniformly for users, and the users can use water in a period of time when the water is stopped. The invention saves energy, ensures water consumption after power failure of users, has the advantages of relatively low cost and no occupation of site space, and fully achieves intellectualization. Based on the above, the invention has good application prospect.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of a partial structure of the present invention.
Fig. 3 and 4 are circuit diagrams of the present invention.
Detailed Description
The intelligent constant-pressure variable-frequency water supply system comprises a constant-pressure secondary water supply system body 1, a water tank, a small-sized air pump M1, a stabilized voltage power supply A4, a storage battery AG1, pressure acquisition and control equipment, a first control circuit 2 and a second control circuit 3, wherein the first control circuit is connected with the storage battery AG 1; the pressure acquisition and control equipment comprises a plurality of sets, each set of pressure acquisition and control equipment comprises a pressure switch P3, a storage battery G, an electromagnetic valve DC, a trigger sub-circuit 4 and a switching power supply A, a plurality of sub-pipes 5 are connected in parallel to the total water outlet end pipeline of a booster pump of the constant-pressure secondary water supply system body, a plurality of sub-residential buildings with different building heights in a residential district are respectively provided with one set of pressure acquisition and control equipment in a matched manner, one end of the electromagnetic valve DC is connected with one sub-pipe 5 through a pipeline, the other end of the electromagnetic valve DC is connected with the total water inlet end pipeline 6 of the sub-residential building, the pressure switch P3 is arranged at the highest point position side end of the user pipeline 6 of the sub-residential building, the air inlet end of the pressure switch P1 is communicated with the pipeline, the storage battery G, the trigger sub-circuit 4 and the switching power supply A are arranged on a circuit board in an element box 12, and the element box 12 is arranged in an electrical control box on the wall of the highest point position side end of the user pipeline 6 of the residential building; a partition plate 73 is welded inside the left side of the water tank to divide the water tank into a left independent part and a right independent part (the volume of the left end is about one fifth of the volume of the right end), a rectangular groove is arranged below the front end of the left side 71 of the water tank, an air pump M1 is arranged in the groove through a screw nut, an electromagnetic valve ADC2 is arranged on an exhaust pipe of the air pump M1, the other end of the electromagnetic valve ADC2 is connected with an air inlet pipe 8 (communicated with the inside of the left end of the water tank) at the lower part of the left side 71 of the water tank, an electromagnetic valve BDC3, an electromagnetic valve CDC4 and a pressure switch AP1 are respectively arranged outside the upper part of the left side 71 of the water tank (communicated with each other among the electromagnetic valve B, one end of the electromagnetic valve C, an air inlet pipe of the pressure switch A and the left end of the water tank), the other end of the electromagnetic valve BDC3 and a municipal pipe network tap water pipe 9 are connected in parallel through pipelines, a liquid level switch T1 is arranged in the middle part of the left inside of the water tank 71 (the upper part is about 65 cm away from the upper end of the left end of the water tank 71, a wire connected with the liquid level switch T1 is led out through a rear opening at the upper end of the left part of the water tank left end, the water tank left end is sealed by harmless glue, or the opening is connected through a wire sealing connection joint); the outside of the upper end of the right 72 of the water tank is respectively provided with a one-way air valve 10 and an electromagnetic valve DDC5 (the inside of the air inlet pipe of the one-way air valve, one end of the electromagnetic valve D and the inside of the right end of the water tank are communicated with each other), the other end of the electromagnetic valve DDC5 and a municipal pipe network tap water pipeline 9 are connected in parallel through a pipeline, the inside of the right 72 of the water tank is provided with a liquid level switch AT2 AT the middle part (the upper end of the right 72 of the water tank is spaced by about 3 cm), a wire connected with the liquid level switch A is led out through a hole AT the rear part of the upper end of the right of the water tank, and the hole is sealed by pressure-resistant harmless glue or is connected through a wire sealing connection joint); the middle part of the lower end of the left water tank 71 is welded with a water outlet pipe 11 communicated with the inside of the water tank, the other end 11 of the water outlet pipe is connected with one end of an electromagnetic valve EDC1, the other end of the electromagnetic valve EDC1 is connected with one side of a main water outlet end pipeline 101 of a booster pump M of the constant-pressure secondary water supply system body in parallel through a pipeline (the other end of the electromagnetic valve E is communicated with the main water outlet end pipeline); the stabilized voltage power supply A4, the first control circuit 2, the second control circuit 3 and the storage battery AG1 are arranged on a circuit board in the constant-voltage secondary water supply system body electric control box. In the invention, a set of pressure acquisition and control equipment is respectively matched with a plurality of different-building-height sub-residential buildings in a residential district, and is completely consistent with the working principle of a constant-pressure secondary water supply system body.
The switching power supply A of each set of pressure acquisition and control equipment is a finished product of an alternating current 220V to direct current 12V switching power supply module with the model of 220V/12V/1KW shown in figures 1, 2, 3 and 4; the electromagnetic valve DC is a normally closed valve core electromagnetic valve with power of 4W and working voltage of 12V; the pressure switch P3 is a finished product of a normally open valve core pressure switch with the model SY-S60 and adjustable pressure, and when the water pressure at the highest position of the user pipeline of each sub-residential building reaches a set value, the internal contact of the pressure switch P3 is closed, and conversely, the pressure switch is opened; battery G is a model 12V/5Ah lithium battery. The trigger sub-circuit of each set of pressure acquisition and control equipment comprises a resistor R, NPN triode Q and a relay K which are connected through circuit board wiring, wherein the positive power input end of the relay K is connected with the control power input end, one end of the resistor R is connected with the base electrode of the NPN triode Q, and the collector electrode of the NPN triode Q is connected with the negative power input end of the relay K. In each set of pressure acquisition and control equipment, the power input end 1 and the power input end 2 of the switching power supply A are respectively connected with two poles of an alternating current 220V power supply through wires; the power output ends 3 and 4 pins of the switching power supply A are respectively connected with the positive power input end of the trigger sub-circuit power input end relay K and the power input ends of the NPN triode Q emitter and the storage battery G through leads; the normally closed contact end of the relay K at the power output end of the trigger sub-circuit and the power input end of the negative electrode power input end are respectively connected with the power input ends of the electromagnetic valve DC through wires; the two terminals of the pressure switch P3 are connected in series between the pin 3 of the positive power output end of the switch power supply A and the other end of the signal power input end resistor R of the trigger sub-circuit through wires.
As shown in fig. 1, 2, 3 and 4, the working voltage of the small air pump M1 is 380V, and the power is 2KW; the solenoid valves ADC2, BDC3, CDC4, DDC5 and EDC1 are normally closed valve core solenoid valves with the power of 3W and the working voltage of 12V. The stabilized voltage power supply A4 is a finished product of a 220V-to-DC 12V switching power supply module with the model of 220V/12V/1 KW; the liquid level switch T1 and the liquid level switch AT2 are floating ball liquid level switch finished products with the model DY-105, the internal contacts of the liquid level switch are of normally open type structures, when the water level in the left water tank and the right water tank rises to a certain level, the floating ball of the liquid level switch rises to a certain position, the two normally open contacts in the liquid level switch are opened, and are closed in the reverse direction; battery AG1 is a model 12V/10Ah lithium battery. The first control circuit comprises a time control switch A5, relays K3 and K5 and diodes VD and VD1 which are connected through circuit board wiring, wherein the power output ends 3 and 4 pins of the time control switch A5 are respectively connected with the two power input ends of the first relay K3, the two control power input ends of the second relay K5 are respectively connected with the two power input ends 1 and 2 pins of the time control switch A5, and the two normally closed contact ends of the second relay K5 are respectively connected with the anodes of the two diodes VD and the cathodes of the diodes VD 1; the time control switch A5 is a full-automatic microcomputer time control switch finished product of a model KG316T, the microcomputer time control switch is provided with a display screen, seven keys of cancel/restore, timing, correction, week correction, automatic/manual, timing and clock are provided, the time control switch is provided with two power input ends 1 and 2 pins, two power output ends 3 and 4 pins, a user can respectively press and operate seven keys, the interval time of the power output ends for outputting power and the time of outputting power each time can be set, and the power loss can not cause the set power output time change as long as the next operation key setting is not performed after one setting. The second control circuit comprises time control switches A7 and A8 and a relay K4 which are connected through wiring of a circuit board, wherein a power output end 3 and a pin 4 of the first time control switch A7 are respectively connected with two power input ends of the second time control switch A8, and two power output ends 3 and a pin 4 of the second time control switch A8 are respectively connected with two power input ends of the relay K4 (two wiring ends of a pressure switch AP1 are connected in series between the 3 pin of the time control switch A8 and the positive power input end of the relay K4); the time control switches A7 and A8 are full-automatic microcomputer time control switch finished products of model KG 316T. The pressure switch AP1 is a finished product of a normally open valve core pressure switch with the model SY-S60 and adjustable pressure. The one-way valve 10 is a one-way check valve of CVPU type (ensuring that external air enters and no negative pressure is generated in the water tank, running water can enter)
As shown in fig. 1, 2, 3 and 4, the power input terminals 1 and 2 pins of the regulated power supply A4 are respectively connected with two poles of an alternating current 220V power supply (which may be a zero line and a phase line of a three-phase four-wire power supply), and the alternating current 380V power supply is respectively connected with three control power input terminals of a relay K3 of the first control circuit and a relay K4 of the second control circuit. The pin 3 of the positive power output end of the stabilized power supply A4 is connected with the pin 1 of the positive power input end time control switch A5 of the first control circuit and the positive power input end time control switch A7 of the second control circuit through wires, one end of the liquid level switch AT2 and the positive power input end of the storage battery AG 1. The negative electrode power supply input end of the storage battery AG1, the pin 2 of the negative electrode power supply input end time control switch A5 of the first control circuit and the pin 2 of the negative electrode power supply input end time control switch A7 of the second control circuit are connected through a wire. The two power input ends of the trigger signal input end relay K5 of the first control circuit and the two poles of the 220V alternating current power supply are respectively connected through wires. The trigger signal output end of the first control circuit is connected with the cathode of the diode VD1 (comprising 3 pins and 4 pins of the time control switch A5) and the two ends of the power input end of the electromagnetic valve EDC1 through wires respectively. The three normally closed contact ends of the relay K3 at the control power output end of the first control circuit are connected with the power input end of the control circuit board A6 of the constant-pressure secondary water supply system body through wires. The control power output end positive time control switch A7 of the second control circuit is connected with one end of the liquid level switch T1 through a wire, one end of the pressure switch AP1 is connected with the 3 pins of the positive power output end of the time control switch A8, the other end of the pressure switch AP1 is connected with the positive power input end of the electromagnetic valve ADC2 through a wire, the other end of the liquid level switch T1 is connected with the electromagnetic valve BDC3 and the positive power input end of the electromagnetic valve CDC4 through wires, and the negative power input end of the negative time control switch A7 of the control power output end of the second control circuit is connected with the 4 pins of the electromagnetic valve ADC2, the electromagnetic valve BDC3 and the negative power input end of the electromagnetic valve CDC4 through wires. The other end of the liquid level switch AT2, the negative electrode of the storage battery AG1 and the power input end of the electromagnetic valve DDC5 are respectively connected through wires. The three normally open contact ends of the relay K4 of the second control circuit and the three power input ends of the air pump M1 are respectively connected through wires.
In each set of pressure acquisition and control equipment, as shown in fig. 1, 2, 3 and 4, after a 220V ac power supply enters the power input end of the switching power supply a, the switching power supply a outputs a stable 12V dc power supply to enter the trigger sub-circuit and the power input end of the storage battery G under the action of an internal circuit of the switching power supply a (the storage battery G is charged in a floating manner, and the pressure acquisition and control equipment can be ensured to work normally after power failure); and simultaneously into one end of the pressure switch P3. After the 220V alternating current power supply enters the power input end of the regulated power supply A4, the regulated power supply A4 outputs a stable 12V direct current power supply to enter the first control circuit, the second control circuit and the power input end of the storage battery AG (the storage battery AG1 is charged in a floating mode, and the normal operation of related circuits can be guaranteed after power failure) under the action of the internal circuits of the regulated power supply A4; and simultaneously enters one end of the liquid level switch AT 2.
The invention is based on a constant pressure secondary water supply system body, as shown in figures 1, 2, 3 and 4, with all other functions of the constant pressure secondary water supply system. In the working process (the booster pump M is electrically operated to pump out water in the right part 72 of the water tank, the pressurized pump is output into each sub-residential building user pipeline 6 of a plurality of single buildings through one side of the main water outlet pipeline 101 and the sub-pipes 5, water is supplied to each resident of the plurality of single buildings), the control circuit board A6 of the constant-pressure variable-frequency secondary water supply system body can collect pressure signals of the pressure switch P communicated with one side of all user pipelines in real time (the pressure switch P is arranged on one side of the single main water outlet pipeline 101 of the booster pump), the working frequency of the motor M is controlled to be output to the booster pump, when the water pressure collected by the pressure switch P is low, the working frequency of the motor M is relatively high, so that the water output by the booster pump is relatively high, the working frequency of the motor M is relatively low, the water output by the control circuit board A6 is relatively low, and the power of the booster pump M is reduced, so that the water output by the plurality of single buildings is required to be used simultaneously, and the purpose of saving electricity is achieved (when the total water pressure in the main water outlet pipeline 101 is proper, the motor M is powered off).
In the time period when the time control switch A5 is powered on and the pins 3 and 4 have no output power supply, the relay K3 is powered off and the control power supply input end and the normally closed contact end are closed, so that the control circuit board A6 of the constant-pressure secondary water supply system body can be powered on, that is, the whole constant-pressure secondary water supply system body is in a normal working state, and normal water supply is carried out for all users. When the water level in the right end 72 of the water tank is enough AT ordinary times, two contacts in the liquid level switch AT2 are opened, so that the solenoid valve DDC5 cannot be powered on, the valve core in the solenoid valve DDC is closed, and the water in the municipal pipeline 9 cannot enter the right end 72 of the water tank; when the water level in the right end 72 of the water tank is insufficient AT ordinary times, two contacts in the liquid level switch AT2 are closed, then the electromagnetic valve DDC5 is electrified to work, the valve core in the electromagnetic valve DDC is opened, so that water in the municipal pipeline 9 can enter the right end 72 of the water tank, tap water is injected into the right end 72 of the water tank (the one-way air valve 10 mainly discharges air AT the right part of the water tank in water injection, and the tap water is ensured to enter the right end of the water tank); by the above, the present invention automatically maintains the right end 72 of the tank at a suitably high level. After the time control switch A5 is powered on, pins 3 and 4 can output power for a period of time (the time is adjustable, for example, 6 hours of power is output every 2 days) at intervals to enter the relay K3 and the power input end of the electromagnetic valve EDC1, so that the relay K3 can be powered on to open the control power input end and the normally closed contact end of the electromagnetic valve K3 in the period of time, and the electromagnetic valve EDC1 can be powered on to work; in this way, every 2 days and 6 hours (the time technician is set according to the total water consumption of the district, the water consumption of the district in the time period is met, the requirement of outputting about four fifths in the left part 71 of the water tank can be met), the control circuit board A6 of the constant-pressure secondary water supply system body can lose electricity, that is, the whole constant-pressure secondary water supply system body is in an inactive state in the time period, meanwhile, the electromagnetic valve EDC1 is powered on and the internal valve core is opened in the time period, so that the pre-stored water with pressure driving in the left end 71 of the water tank can enter the water pipes of a plurality of buildings through the water outlet pipe 11 and one side of the pipeline 101 of the total water outlet end under the action of high-pressure water pressure (such as more than 2.5 Mpa), and the water can be normally used by a plurality of buildings. The above purpose is mainly to prevent water from being stored in the left end 71 of the water tank for too long and not used, resulting in deterioration of water. After every 2 days and 6 hours, the 3 and 4 feet of the time control switch A5 do not output power, so that the whole constant-pressure secondary water supply system body is in a normal working state again (the valve core of the electromagnetic valve EDC4 is closed) and water is supplied normally again for all users.
As shown in fig. 1, 2, 3 and 4, when the input power supply of the constant-pressure secondary water supply system body is not in a power failure at ordinary times, the relay K5 is in a power-on and power-off state, the control power supply input end and the normally closed contact end of the relay are opened, so that the electromagnetic valve EDC1 cannot be powered on, the internal valve core of the electromagnetic valve EDC1 is closed, and the whole constant-pressure secondary water supply system body is in a normal working state and normally supplies water to all users. When the input power supply of the constant-pressure secondary water supply system body is in a power-off and non-suction state, the control power supply input end and the normally-closed contact end of the relay K5 are closed, the two poles of the 12V power supply are in one-way conduction through the two diodes VD and VD1 and enter the power supply input end of the electromagnetic valve EDC1, then the electromagnetic valve EDC1 can work by electricity, the internal valve core of the electromagnetic valve EDC1 is opened, and thus the pre-stored water with pressure driving in the left end 71 of the water tank can enter the water pipes of a plurality of buildings through one side of the pipeline 101 at the total water outlet end under the action of high-pressure water pressure, and the water can be normally used by the plurality of buildings. The above purpose is that after the power failure of the constant pressure secondary water supply system body, the left water tank 71 can be controlled to supply water uniformly for users, and the users can use water in a period of time when the water is stopped, so that more humanized service is provided.
As shown in fig. 1, 2, 3 and 4, after the time control switch A7 is powered on, a power supply is output for a period of time every certain time (for example, a power supply is output for 1 hour every 2 days after 6 hours every time, and the constant-pressure secondary water supply system body is restored to supply water for a user at the moment) at intervals, the power supply input ends of the positive electrode and the negative electrode of the time control switch A8 enter one end of the liquid level switch T1, and the liquid level switch T1 is powered on by the time control switch A8. When the water level in the left end 71 of the water tank is enough at ordinary times, two contacts in the liquid level switch T1 are opened, so that the electromagnetic valve BDC3 and the electromagnetic valve CDC4 cannot be powered on, the valve cores in the electromagnetic valve BDC3 and the electromagnetic valve CDC4 are closed, and the water in the municipal pipeline 9 cannot enter the left end 71 of the water tank; when the water level in the left end 71 of the water tank is insufficient at ordinary times, two contacts in the liquid level switch T1 are closed, then the electromagnetic valve BDC3 and the electromagnetic valve CDC4 are electrified to work, the valve core in the electromagnetic valve BDC3 is opened, so that water in the municipal pipeline 9 enters the left end 71 of the water tank through the electromagnetic valve BDC3, tap water is injected into the left end 71 of the water tank (the electromagnetic valve CDC4 mainly discharges air at the left part of the water tank in water injection, and the tap water is ensured to enter the left end of the water tank); with the above, the present invention can automatically maintain the water level in the left end 71 of the water tank at a proper high level (typically, even if the water in the left end 71 of the water tank is completely used up, the water amount of four fifths of the water is injected into the left end 71 of the water tank for less than 20 minutes). The time control switch A8 outputs a power supply for a period of time (for example, outputs a power supply for 10 minutes at intervals of 21 minutes) to enter one end of the pressure switch AP1 after power-on operation; in practical situations, when the pressure of the water injected into the left water tank 71 is lower than a certain pressure (for example, lower than 2.5 Mpa), the internal contact of the pressure switch AP1 is closed, so that the relay K4 will be electrically connected to the control power input end and the normally open contact end (meanwhile, the solenoid valve ADC2 is electrically connected to the internal valve core of the solenoid valve ADC to open), and then the air pump M1 is electrically connected to inject compressed air into the left water tank 71. When the pressure in the left water tank 71 is higher than a certain value (for example, higher than 2.5 Mpa), the internal contact of the pressure switch AP1 is opened, so that the relay K4 is powered off and does not attract the control power input end and the normally open contact end to open (meanwhile, the solenoid valve a is powered off and the internal valve core is closed), and then the air pump M1 is powered off and does not work, and the injection of compressed air into the left water tank 71 is stopped. By the above, the invention can ensure that the left end 71 of the water tank has higher pressure, and the water in the water tank can provide water for a period of time for users after power failure.
Through the combined action of the mechanisms and the circuits, as shown in fig. 1, 2, 3 and 4, in the application of the invention, the pressure acquisition and control equipment pressure switch of each building in the residential district can monitor the highest water pressure of the building in real time, when the water pressure is lower than the minimum, the electromagnetic valve DC is opened for water inflow, and when the water pressure is higher than the certain electromagnetic valve DC, the electromagnetic valve DC is closed, so that the water pressure requirement on the booster pump can be reduced as much as possible (particularly, the advantage of lower floors is more obvious) on the premise that the water pressure requirement on the self floor is met by each building, and the energy consumption of the booster pump is correspondingly reduced. According to the invention, the constant-pressure secondary water supply system body can be controlled to stop working every time, water with pressure stored in the water tank is controlled to supply water uniformly for a user, so that the water deterioration caused by long-term storage of the water is prevented, tap water can be controlled to be injected into the left water tank, and the air pump is controlled to be added with pressure in the left water tank, so that the requirement of driving water pressure after water cut-off is ensured; after the constant-pressure secondary water supply system body has a power failure, water in the left water tank can supply water uniformly for users, and the users can use water in a period of time when the water is stopped. The invention saves energy, ensures water consumption after power failure of users, has the advantages of relatively low cost and no occupation of site space, and fully achieves intellectualization. The relay K5 is an alternating current 220V relay; the relays K, K, K4 are DC12V relays; the model numbers of the diodes VD and VD1 are 1N4007; the model Q of the NPN triode is 9013; the resistance R is 47K.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is limited to the details of the foregoing exemplary embodiments, and that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, the embodiments do not include only a single embodiment, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and embodiments may be suitably combined to form other embodiments that will be understood by those skilled in the art.
Claims (6)
1. An intelligent constant-pressure variable-frequency water supply system comprises a constant-pressure secondary water supply system body, a water tank, an air pump, a stabilized voltage power supply and a storage battery A, and is characterized by also comprising pressure acquisition and control equipment, a first control circuit and a second control circuit; the system comprises a pressure acquisition and control device, a pressure switch, a storage battery, an electromagnetic valve, a trigger sub-circuit and a switching power supply, wherein the pressure acquisition and control device comprises a plurality of sets of pressure switch, the storage battery, the electromagnetic valve, the trigger sub-circuit and the switching power supply; in each set of pressure acquisition and control equipment, the power output end of the trigger sub-circuit is electrically connected with the power input end of the electromagnetic valve, and the pressure switch signal output end is electrically connected with the signal power input end of the trigger sub-circuit; the water tank is divided into two independent parts, the air pump is arranged outside the water tank, the electromagnetic valve A is arranged on the exhaust pipe of the air pump, the other end of the electromagnetic valve A is connected with the air inlet pipe outside one side of the water tank, the electromagnetic valve B, the electromagnetic valve C and the pressure switch A are respectively arranged outside one side of the water tank, the other end of the electromagnetic valve B is connected with the tap water pipeline in parallel, and the liquid level switch is arranged in one side of the water tank; the other side of the water tank is externally provided with a one-way air valve and an electromagnetic valve D respectively, the other end of the electromagnetic valve D is connected with a municipal pipe network tap water pipeline in parallel, and the other side of the water tank is internally provided with a liquid level switch A; a water outlet pipe is arranged below one side, the other end of the water outlet pipe is connected with one end of an electromagnetic valve E, and the other end of the electromagnetic valve E is connected with one side of a pipeline of the total water outlet end of the booster pump of the constant-pressure secondary water supply system body in parallel; the stabilized voltage power supply, the first control circuit and the second control circuit are electrically controlled in the box; the trigger signal output end of the first control circuit is electrically connected with the power input end of the electromagnetic valve E, and the control power output end of the first control circuit is electrically connected with the power input end of the control circuit board of the constant-pressure secondary water supply system body; the first path of control power supply output end of the second control circuit is electrically connected with one end of the liquid level switch and one end of the pressure switch A, the other end of the pressure switch A is electrically connected with one end of the power supply input of the electromagnetic valve A, the other end of the liquid level switch is electrically connected with one end of the power supply input of the electromagnetic valve B and one end of the power supply input of the electromagnetic valve C, and the liquid level switch A is electrically connected in series between one end of the power supply input of the electromagnetic valve D; the second path of control power output end of the second control circuit is electrically connected with the power input end of the air pump; the application method of the intelligent constant-pressure variable-frequency water supply system comprises the following steps: a: the pressure switch installed in the multi-building sub-residential building with different building heights in the residential district collects the water pressure at the highest position of the user pipeline of each sub-residential building in real time, the electromagnetic valve is closed to prevent water from entering after the lowest water pressure is reached, and the electromagnetic valve is opened to enter water when the lowest water pressure is not reached, so that the water pressure requirement on the booster pump is reduced and the energy consumption of the booster pump is reduced on the premise of meeting the water requirement on the floor of the user; b: the first control circuit controls the constant pressure secondary water supply system body to stop working every a period of time, and the second control circuit controls the water stored in the water tank and having pressure to supply water uniformly for users, so that the water is prevented from deteriorating due to the fact that the water is stored too long: c: the second control circuit controls tap water to be filled into one side of the water tank, and controls the air pump to add compressed air into one side of the water tank; d: after the constant-pressure secondary water supply system body has a power failure, the first control circuit controls the water tank to uniformly supply water for users in one side, and the users can use water in a period of time when the water is stopped.
2. The intelligent constant-voltage variable-frequency water supply system according to claim 1, wherein the switching power supply of each set of pressure acquisition and control equipment is an alternating-current-to-direct-current switching power supply module; the electromagnetic valve, the electromagnetic valve A, the electromagnetic valve B, the electromagnetic valve C, the electromagnetic valve D and the electromagnetic valve E are normally closed valve core electromagnetic valves; the pressure switch and the pressure switch A are normally open contact pressure switches with adjustable pressure.
3. The intelligent constant-voltage variable-frequency water supply system according to claim 1, wherein the trigger sub-circuit of each set of pressure acquisition and control equipment comprises a resistor, an NPN triode and a relay which are electrically connected, wherein the positive power input end of the relay is connected with the control power input end, one end of the resistor is connected with the base electrode of the NPN triode, and the collector electrode of the NPN triode is connected with the negative power input end of the relay.
4. The intelligent constant pressure variable frequency water supply system according to claim 1, wherein the liquid level switch and the liquid level switch a are normally open contact type floating ball liquid level switches.
5. The intelligent constant-voltage variable-frequency water supply system according to claim 1, wherein the first control circuit comprises a time control switch, a relay and a diode which are electrically connected, wherein a power output end of the time control switch is respectively connected with two ends of a power input of the first relay, two control power input ends of the second relay are respectively connected with two ends of a power input of the time control switch, and two normally-closed contact ends of the second relay are respectively connected with an anode of the first diode and a cathode of the second diode; the time control switch is a full-automatic microcomputer time control switch.
6. The intelligent constant-voltage variable-frequency water supply system according to claim 1, wherein the second control circuit comprises a time control switch and a relay which are electrically connected, wherein the power output end of the first time control switch is respectively connected with the power input end of the second time control switch, and the power output end of the second time control switch is respectively connected with the power input end of the relay.
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| JPH03206380A (en) * | 1990-01-09 | 1991-09-09 | Hitachi Elevator Eng & Service Co Ltd | Water service system of building |
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