CN212801738U

CN212801738U - Intelligent non-negative pressure water supply equipment

Info

Publication number: CN212801738U
Application number: CN202021232623.9U
Authority: CN
Inventors: 熊代兵; 刘强业; 杨光
Original assignee: Chengdu Ningshui Technology Co ltd
Current assignee: Chengdu Ningshui Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-26
Anticipated expiration: 2030-06-30

Abstract

The intelligent non-negative pressure water supply equipment comprises a non-negative pressure water supply device body, a stabilized voltage power supply, a frequency converter and a motor speed reducing mechanism, wherein the frequency converter is matched with a speed-regulating adjustable resistor; the wireless receiving circuit is connected with the wireless control circuit; the first set of stabilized voltage supply, the frequency converter, the motor reducing mechanism, the time control circuit and the wireless receiving circuit are arranged in an electrical control box of the non-negative-pressure water supply device body and are connected with the booster pump; the adjustable resistance adjusting handles of the power output shaft of the motor reducing mechanism are connected together; the wireless control circuit comprises a water level switch and a wireless transmitting sub-circuit, the wireless transmitting sub-circuit and the second set of stabilized voltage supply are arranged in the element box and connected with the water level switch, and the water level switch is arranged in the highest point of the user pipeline. This novel during operation can be at the automatic booster pump input power frequency that reduces of low peak water consumption time quantum, still has the moisturizing function, has not only realized energy-conserving purpose, and can also guarantee the real-time normal water supply of user side pipeline.

Description

Intelligent non-negative pressure water supply equipment

Technical Field

The utility model relates to a water supply facility field, especially a no negative pressure water supply equipment of intelligence.

Background

A non-negative pressure water supply device is a widely used device in a secondary water supply system of a high-rise building, and generally comprises a steady flow tank, a booster pump and a necessary control system, wherein tap water flows into the steady flow tank (the upper end of the steady flow tank is provided with a negative pressure suppressor for preventing negative pressure from being generated in the steady flow tank) during working, and then one or more booster pumps the pressurized water into a user pipeline, so that normal water use of high-rise residents is ensured. In order to ensure the normal water use of high-rise residents, the water output by the booster pump into the user pipeline needs to keep a certain pressure, so that the existing non-negative-pressure water supply device is provided with a pressure detection switch at the side of the user pipeline, when the pressure is lower than a set water pressure value, the control system controls the booster pump to be powered on to work, when the pressure is higher than the set water pressure value, the control system controls the booster pump to stop working, and under the premise of normal water supply, the energy-saving purpose can be achieved.

When the water supply device without negative pressure supplies water to the area, the water-using area does not need high constant water pressure all the time, for example, in the late night time period of a high-rise building district, because the water consumption is greatly reduced, the normal water use of high-rise residents can be ensured by actually low water pressure (when the booster pump works and outputs a large amount of water, the rotating speed of a motor of the booster pump is increased, the correspondingly output water pressure is increased, the water consumption of the residents is large, the water pressure of the water is enough large to ensure that the high-rise residents are normally used, and when the water consumption is small, the water pressure of the water is relatively small to ensure that the high-rise residents normally use water. Also, it is possible that some high-rise buildings (such as office buildings, and manufacturing and processing enterprises located in high-rise rooms, etc.) use more water during certain periods of time (on-duty periods) and use less water during other periods of time (off-duty periods). Therefore, in the existing non-negative pressure water supply device, the water pressure and the water amount in the peak water consumption time period are maintained in the water consumption low peak time period (the lowest water pressure set by the pressure detection switch is a fixed value), so that the working moment of the booster pump is undoubtedly in a larger power, and the waste of electric energy is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that the existing non-negative pressure water supply device is limited by the structure, when the side of a user pipeline is in a low-peak water using time period, the booster pump works at unnecessarily high power, thereby causing the disadvantage of electric energy waste, the utility model provides a technology for controlling the rotating speed and the power of a motor based on the existing mature frequency converter, the time control switch can automatically reduce the input power frequency of the booster pump in the low peak water consumption time period set by a user, further achieving the purpose of controlling the rotating speed and the power of the booster pump, and having the function of water supplement, when the water consumption is in a low peak time period and the booster pump works under lower power, and the water consumption on the pipeline side of a user is increased suddenly due to various reasons, the related circuit can be automatically connected with the booster pump to work under full power, therefore, the intelligent non-negative pressure water supply equipment not only realizes the purpose of energy conservation, but also can ensure that the pipeline at the user side normally supplies water in real time.

The utility model provides a technical scheme that its technical problem adopted is:

the intelligent non-negative pressure water supply equipment comprises a non-negative pressure water supply device body, a stabilized voltage power supply, a frequency converter and a motor speed reducing mechanism, wherein the frequency converter is matched with a speed-regulating adjustable resistor; it is characterized by also comprising a time control circuit, a wireless control circuit and a wireless receiving circuit; the device comprises two sets of stabilized voltage power supplies, wherein the first set of stabilized voltage power supply, a frequency converter, a motor speed reducing mechanism, a time control circuit and a wireless receiving circuit are arranged in an electrical control box of a non-negative-pressure water supply device body, and adjustable resistance adjusting handles of a power output shaft of the motor speed reducing mechanism are connected together; the wireless control circuit comprises a water level switch and a wireless transmitting sub-circuit, the wireless transmitting sub-circuit and the second set of stabilized voltage supply are arranged in the element box, and the water level switch is arranged in the highest point of a user pipeline of the high-rise building; the power input end of the frequency converter, the normally-open control power end of the wireless receiving circuit are electrically connected with an alternating-current power supply, the power output end of the frequency converter is electrically connected with the normally-closed control power end of the wireless receiving circuit, and the power input end of the booster pump of the non-negative-pressure water supply device body is electrically connected with the control power output end of the wireless receiving circuit; the power output ends of the first set of stabilized voltage supply are respectively and electrically connected with the power input ends of the time control circuit, the wireless receiving circuit and the frequency converter; the two paths of power supply output ends of the time control circuit are respectively and electrically connected with the positive and negative poles and the negative and positive poles of the motor reducing mechanism; the positive electrode of the power output end of the second set of stabilized voltage power supply is connected with one end of the water level switch through a lead, and the other end of the water level switch, the negative electrode of the power output end of the second set of stabilized voltage power supply and the two ends of the power input of the wireless transmitting sub-circuit are respectively and electrically connected.

Furthermore, the first set of stabilized voltage supply and the second set of stabilized voltage supply are AC-to-DC switching power supply modules.

Further, the type of the frequency converter is FR-D720-8K.

Further, the motor reduction mechanism is a coaxial motor gear reducer.

Furthermore, the time control circuit comprises two sets of time control switches which are connected through a circuit board, and the two power input ends of the two sets of time control switches are respectively connected; the time control switch is a microcomputer time controller.

Further, the wireless receiving circuit comprises a wireless signal receiving module, a resistor, an NPN triode and a relay, wherein the wireless signal receiving module, the resistor, the NPN triode and the relay are connected through a circuit board in a wiring mode, a positive power input end of the wireless signal receiving module is connected with a positive electrode of the first relay and a control power input end of the first relay, a first output end of the wireless signal receiving module is connected with one end of the resistor, the other end of the resistor is connected with a base electrode of the NPN triode, a collector electrode of the NPN triode is connected with a negative power input end of the first relay, a normally open contact end of the first relay is connected with a positive power input end of the second relay, and an emitter electrode of the NP.

Furthermore, two contacts under a first key of a wireless transmitting sub-circuit of the wireless control circuit are electrically connected together, and one end of the water level switch is connected with the positive power supply input end of the wireless transmitting sub-circuit.

The utility model has the advantages that: before this novel use, the time of two sets of time control switch output power of time control circuit is adjusted and is set for according to the on-the-spot water use condition to the technical staff. In the application, in the peak water using time period, the resistance value of the adjustable resistor of the frequency converter is controlled to be the lowest by the motor speed reducing mechanism, then the frequency converter outputs a power supply with larger frequency to the booster pump, and the booster pump works under larger power, so that the larger water consumption and the larger water pressure requirement of a water using area are ensured. In the low-peak water consumption time period, the resistance value of the adjustable resistor of the frequency converter is controlled to be relatively large by the motor speed reducing mechanism, then the frequency converter outputs a relatively small-frequency power supply to the booster pump, the booster pump works under relatively low power, the energy-saving purpose of the booster pump can be achieved on the premise that normal water consumption (relatively low water quantity and water pressure) is guaranteed in the low-peak water consumption time period of the water consumption area. This is novel, and when the time quantum of the low peak of water, booster pump work under lower power, under extreme condition, when the user pipeline side suddenly the water consumption increases because of various reasons (for example the enterprise in the high-rise building reason such as overtime), relevant circuit can put through booster pump work under the full power automatically, has realized from this under the energy-conserving purpose prerequisite, and can also guarantee the real-time normal water supply of user side pipeline. Based on the above, the novel device has a good application prospect.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram between the motor speed reducing mechanism and the adjustable resistor of the present invention.

Fig. 3 is a schematic structural diagram between the water level switch and the user pipeline of the present invention.

Fig. 4 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the intelligent non-negative pressure water supply device comprises a non-negative pressure water supply device body 1, a voltage-stabilized power supply 2, a frequency converter 3 and a micro motor speed reduction mechanism 4, wherein the non-negative pressure water supply device body is provided with a steady flow tank 101, a booster pump 102, a pipeline 103, a valve 104, a control system, an electrical control box 105, a pressure detection switch and other necessary supporting facilities, and the frequency converter 3 is provided with a speed-adjusting adjustable resistor 31; the wireless control device is also provided with a time control circuit 5, a wireless control circuit 6 and a wireless receiving circuit 7; the power output shaft flange of the motor reducing mechanism 4 is connected with an adjustable resistance 31 adjusting handle flange (plastic disc) of the frequency converter through a screw and a nut; the wireless control circuit 6 comprises a water level switch 61 and a wireless transmitting sub-circuit 62, the wireless transmitting sub-circuit 62 and a second set of stabilized voltage supply 2 are installed on a circuit board in an element box 8, the water level switch 61 is installed in the highest point of water needed by a user pipeline 9 of a high-rise building through a screw nut, the element box 8 is installed in a high-rise building room on the pipeline side (a lead connected with the water level switch is led out from an opening at the upper end of the pipeline 9, and the opening is sealed by nontoxic and harmless sealant).

As shown in figure 4, the non-negative pressure water supply equipment body has two booster pumps M, the power is 3KW respectively, the working voltage is 380V, and three power supply input ends of the two booster pumps M are connected in parallel through leads respectively. The first set of stabilized voltage supply A is a finished product of a 220V/12V/100W AC-to-DC 12V switching power supply module, outputs 100W power, and has two

power input ends

1 and 2 pins and two

power output ends

3 and 4 pins; the second set of regulated power supply A6 is a 220V/12V/100W AC-to-DC 12V switching power supply module product, with an output power of 100W, having two

power input terminals

1 and 2 pins and two

power output terminals

3 and 4 pins. The frequency converter A3 is a finished product of a Mitsubishi frequency converter with the model number of FR-D720-8K, and is provided with three power input terminals R, S, T and three power output terminals U, V, W, the frequency converter is matched with

adjustable resistor terminals

10, 2 and 5 pins, two direct current

signal operation terminals

4 and 5 pins, two fixed input and output ends of an adjustable resistor RP are respectively connected with the 10 pins and the 5 pins through leads, a sliding contact terminal of the adjustable resistor RP is connected with the 2 pins through a lead, the 4 pins and one end of a current limiting and voltage reducing resistor R are connected through a lead, and the other end and the 5 pins of the resistor R are connected with positive and negative direct current signals. The miniature motor speed reducing mechanism M1 is a coaxial motor gear reducer finished product of type GA6-N20, a motor and a multi-stage gear speed reducing mechanism are arranged in a shell of the miniature motor speed reducing mechanism, when the miniature motor speed reducing mechanism works, power output by the motor is reduced by the multi-stage speed reducing gear to increase torque and then is output by a power output shaft, and the rotating speed of the power output shaft per minute is 10 revolutions. The time control circuit comprises two sets of time control switches A1 and A2 which are connected through a circuit board, and two

power input ends

1 and 2 pins of the two sets of time control switches A1 and A2 are respectively connected; the time control switches A1 and A2 are microcomputer time controller finished products of model KG316T, the time controller finished product has a liquid crystal display, and also has seven cancel/recovery, time correction, week correction, automatic/manual, timing, clock keys, and two

power input ends

1 and 2 pins, two power output ends 3 and 4 pins, the number displayed by the liquid crystal display after power-on, the user can set the time of the power output ends 3 and 4 pins output power respectively by operating the seven keys, the time controller finished product has memory function, as long as the secondary setting adjustment is not carried out, the power failure of the external power supply can not cause the change of the internally set time program.

As shown in fig. 4, the wireless receiving circuit includes a wireless signal receiving module finished product a4 (operating frequency 315 MHZ) of a SF1500 wireless signal transceiver module, a resistor R1, an NPN transistor Q1, relays J2 and J3, which are connected via a circuit board, a pin 1 of a positive power input terminal of the wireless signal receiving module a4 is connected to a positive terminal of a first relay J2 and a control power input terminal, a pin 4 of a first output terminal of the wireless signal receiving module a4 is connected to one terminal of the resistor R1, the other terminal of the resistor R1 is connected to a base of the NPN transistor Q1, a collector of the NPN transistor Q1 is connected to a negative power input terminal of the first relay J2, a normally open contact terminal of the first relay J2 is connected to a positive power input terminal of the second relay J3, an emitter of the NPN transistor Q1 is connected to a pin 3 of the negative power input terminal of the wireless signal receiving module a4 (seven terminals, the rest pins are suspended in the embodiment), and the negative power supply input end of the second relay J3 is connected. The water level switch S of the wireless control circuit is a finished product of a 304 stainless steel single-floating-ball water level switch with the height of 75mm, an internal contact of the water level switch S is of a normally closed structure and is provided with two terminals, the two terminals are respectively communicated with the two contacts, when a floating ball of the water level switch S is lifted by the buoyancy of water during work, the two contacts in the water level switch S are opened, and when the floating ball of the water level switch S is not lifted by the buoyancy of the water during work, the two contacts in; the wireless transmitting sub-circuit is a wireless signal transmitting module finished product (working frequency 315 MHZ) of a SF1500 wireless signal transceiving component, the wireless signal transmitting distance is 1500 meters in an open area, the wireless signal transmitting sub-circuit is provided with four keys, four paths of wireless control signals can be respectively transmitted when the wireless signal transmitting sub-circuit is pressed down, and two contacts under a first key K are connected together through a conducting wire; one end of the water level switch S is connected with a pin 1 at the positive power supply input end of the wireless transmitting sub-circuit A5.

As shown in fig. 4, three power input ends R, S, T of the frequency converter a3 and three normally open control power output ends of the wireless receiving circuit relay J3 are respectively connected with a three-phase 380V alternating current power supply through leads. The three power output ends U, V, W of the frequency converter A3 and the three normally closed control power output ends of the relay J3 of the wireless receiving circuit are respectively connected through leads. Three power supply input ends of the booster pump M and three control power supply output ends of a relay J3 (namely three movable contact ends of a relay J3) of the wireless receiving circuit are respectively connected through leads. The power input end of the first set of stabilized voltage supply A is connected with two poles of an alternating current 220V power supply (which can be one phase line and a zero line of a three-phase four-wire power supply) through leads respectively.

Pins

3 and 4 at the two ends of the power output of the first set of stabilized voltage supply A,

pins

1 and 2 of the time control switch A1 at the two ends of the power input of the time control circuit, the positive power input end of the relay J2 at the two ends of the power input of the wireless receiving circuit, the emitter of the NPN triode Q1, the other end of the resistor R at the signal input end of the frequency converter A3 and the pin 5 are respectively connected through leads. The two power output ends of the time control circuit are respectively connected with the

pins

3 and 4 of the time control switches A1 and A2 and the power input ends of the positive and negative poles and the positive and negative poles of the motor reducing mechanism M1 through leads. The power input ends 1 and 2 of the second set of stabilized voltage supply A6 are respectively connected with the two poles of an alternating current 220V power supply through leads. The positive electrode 3 of the power output end of the second set of stabilized voltage supply A6 is connected with one end of the water level switch S through a lead, and the other end of the water level switch S, the negative electrode 4 of the power output end of the second set of stabilized voltage supply A6 and the two

ends

1 and 2 of the power input of the wireless transmitting sub-circuit are respectively connected through leads. The non-negative pressure water supply device body is arranged at one end of a pressure detection switch SK at the side of a user pipeline and is connected with a positive power supply output end pin 3 of a first set of stabilized voltage supply A through a lead, the other end of the pressure detection switch SK, a negative power supply output end pin 4 of the first set of stabilized voltage supply A and a positive and negative power supply input end pin of a relay J4 are connected through leads respectively, three control power supply input ends of a relay J4 and three control power supply output ends of a relay J3 of a wireless receiving circuit are connected through leads respectively, and three power supply input ends of a booster pump M and three normally closed power supply output ends of the relay J4.

As shown in fig. 4, after a 380V ac power supply enters three power input terminals R, S, T of a frequency converter a3, the frequency converter is in an energized working state. After a 220V alternating current power supply enters a power supply input end of a stabilized voltage supply A, under the action of an internal circuit of the stabilized voltage supply A,

pins

3 and 4 can output a stable 12V direct current power supply to enter two power supply input ends of a time control circuit and a wireless receiving circuit, so that the time control circuit and the wireless receiving circuit are in an electrified working state; meanwhile, the 12V direct-current power supply can also be subjected to voltage reduction and current limitation through a resistor R and enters the

pins

4 and 5 of the signal input end of the frequency converter A3 to provide direct-current power supply operation signals for the normal operation of the frequency converter A3 (no direct-current operation signals are input into the

pins

4 and 5 of the frequency converter A3, and no power supply is output from the power output end of the frequency converter). After the 220V alternating current power supply enters the stabilized voltage supply A6, the stabilized voltage supply A6 outputs stable 12V direct current power supply to enter the two power supply input ends of the wireless control circuit through

pins

3 and 4 under the action of the internal circuit of the stabilized voltage supply A6, and then the wireless control circuit is in a power-on working state. In the initial state of the invention, the motor speed reducing mechanism M1 does not drive the adjustable resistor RP adjusting handle of the frequency converter A3 to rotate, and the adjustable resistor RP is at the minimum resistance value, so that under the action of the internal circuit of the frequency converter A3, the three power output ends U, V, W can output the power with the highest frequency to respectively enter the three power input ends of the booster pump M through the three normally closed output ends of the relay J3, the three normally closed output ends of the relay J3 (control power output ends), the three normally closed output ends of the relay J4 and the three control power output ends, and then the booster pump M works at the highest power to boost tap water and pump the tap water into a user side pipeline, thereby ensuring the requirements of a user on large water volume and high water pressure in a peak water using.

As shown in fig. 1, 2, 3, and 4, before the novel water-saving water dispenser is used, technicians adjust and set the time of power output by the 3 and 4 pins of two sets of time control switches a1 and a2 of a time control circuit according to the water consumption condition on site (for example, the water consumption is very small from 12 o 'clock in evening to 5 o' clock in the next morning on site, the power output by the 3 and 4. This novel during operation running water flows in the stationary flow jar of no negative pressure water supply installation body 1 (stationary flow jar upper end has the negative pressure inhibitor, prevents to produce the negative pressure in the stationary flow jar), then two booster pumps M pump into the user's pipeline after with water pressure boost, has guaranteed high-rise resident family's normal water consumption. In the novel motor speed reduction mechanism, after power is output by 3 and 4 pins of the time control switch A1 (for example, 3 seconds), the output power for 3 seconds can enter the positive and negative pole power input ends of the motor speed reduction mechanism M1, so that the motor speed reduction mechanism M1 is powered on to work, the power output shaft of the motor speed reduction mechanism drives the adjusting handle of the adjustable resistor RP to rotate rightwards (rotate for about 180 degrees), and the resistance value of the adjustable resistor RP is increased; thus, under the action of the internal circuit of the frequency converter A3, the frequency of the power supply output end U, V, W from the power supply output end to the booster pump M is lowered, and the booster pump M works at a lower frequency and a lower rotating speed (about half of the reduction) due to the reduction of the frequency of the input power supply; therefore, the energy-saving purpose of the booster pump M can be achieved under the premise of ensuring normal water use (relatively low water quantity and water pressure) in a water use area and a low-peak water use time period. In the novel motor speed reduction device, after 3 and 4 pins of the time control switch A2 output power (for example, 3 seconds), the output power for 3 seconds can enter the negative and positive pole power input ends of the motor speed reduction mechanism M1, so that the motor speed reduction mechanism M1 is powered on to work, the power output shaft of the motor speed reduction mechanism drives the adjusting handle of the adjustable resistor RP to rotate leftwards (rotate for about 180 degrees) to recover to the initial state, and the resistance value of the adjustable resistor RP is reduced; thus, under the action of the internal circuit of the frequency converter A3, the power frequency output from the power output end U, V, W to the booster pump M is increased, and the booster pump M works at a higher frequency and a higher rotating speed (returns to normal) due to the increased input power frequency; therefore, normal water consumption in the peak water consumption time period of the water consumption area is ensured, and larger water consumption and larger water pressure requirement of the water consumption area are ensured. In the novel water supply device, when a booster pump M of a non-negative-pressure water supply device body works at the maximum power and the output water volume and the water pressure are the highest, after the output water pressure and the output water volume exceed the maximum water pressure set by a pressure detection switch SK, two contacts in the pressure detection switch SK are closed, the positive electrode of a power supply output by a voltage-stabilized power supply A enters the positive power supply input end of a relay J4 through the pressure detection switch SK with the two contacts in the pressure detection switch SK, and then the relay J4 can be electrically actuated to open the three control power supply input ends and the three normally closed contact ends; because the three control power supply input ends of the relay J4 are respectively connected with the three control power supply output ends of the relay J3 of the wireless receiving circuit, and the three power supply input ends of the booster pump M are respectively connected with the three normally closed power supply output ends of the relay J4 through leads, the booster pump M stops working at the moment; the booster pump M is prevented from continuously operating at a high water pressure, resulting in the highest set water pressure being exceeded in the customer-side piping. In the novel water supply device, when a booster pump M of the non-negative-pressure water supply device body works at the maximum power and the water pressure of the output water volume is lower (namely the water volume in a user pipeline is reduced and the pressure is reduced), when the water pressure of the output water volume is lower than the maximum water pressure set by a pressure detection switch SK, two contacts in the pressure detection switch SK are opened, the positive electrode of a power supply output by a voltage-stabilized power supply A does not enter the positive power supply input end of a relay J4 any more, and then the relay J4 loses power and does not attract the three control power supply input ends and three normally closed contact ends of the relay J; because the three control power supply input ends of the relay J4 are respectively connected with the three control power supply output ends of the relay J3 of the wireless receiving circuit, and the three power supply input ends of the booster pump M are respectively connected with the three normally closed power supply output ends of the relay J4 through leads, the booster pump M is in an electrified working state again at the moment; when the water pressure at the side of the user pipeline of the booster pump M is lower than the highest water pressure set by the pressure detection switch SK, the booster pump M can work normally.

Fig. 1, 2, 3, 4 show in, when this novel energy-conserving mode that is in, adjustable resistance RP' S resistance value is great, booster pump M work is under the lower frequency power, the time quantum of the low peak of water use, when the highest water level point has water in the 9 sides of user pipeline, also can satisfy high-rise resident family off-peak water use time quantum, when minimum water pressure water supply demand condition (the water yield is few at this moment, the water pressure is low), because there is water upside in the pipeline 9, water level switch S float has the buoyancy rise height of water, its internal contact opens a way, wireless transmitting circuit a5 can not work with electricity so, also can not launch wireless signal, booster pump M normally works at lower power state. When the novel energy-saving booster pump is in an energy-saving mode, the resistance value of the adjustable resistor RP is large, the booster pump M works under a low-frequency power supply, and the water consumption is low in peak time period, and in extreme cases, the water consumption on the side of a user pipeline is increased suddenly due to various reasons (such as overtime of an enterprise in a high-rise building); because the booster pump M is low in power at the moment, insufficient water is supplied, no water exists at the highest position in the user pipeline 9 side, the floater of the water level switch S is lowered to a height due to the fact that the buoyancy of the water is unavailable, and the internal contact of the water level switch S is closed, so that the positive pole of the 12V power supply enters the positive pole power supply input end of the wireless transmitting circuit A5 through the water level switch S with the closed internal contact, and the wireless transmitting circuit A5 can be powered to work; since the two contacts under the key K of the first transmission key of the wireless transmission circuit a5 are connected together by a wire, the wireless transmission circuit a5 now transmits a close signal. After a finished product A4 of a wireless signal receiving module of the wireless receiving circuit receives a wireless closing signal (in a jog working mode), 4 pins of the finished product A4 can output a high level, the high level is subjected to voltage reduction and current limitation through a resistor R1 and enters a base electrode of an NPN triode Q1, then the NPN triode Q1 is conducted, a collector of the NPN triode Q1 outputs a low level and enters a negative power supply input end of a relay J2, and the relay J2 is electrified to attract a control power supply input end and a normally open contact; because relay J3 positive power input end and relay J2 normally open contact end are connected, so relay J3 can get the electricity actuation its three control power output end (also be relay J3 three movable contact end) and three normally open contact end closure at this moment, its three control power output end (also be relay J3 three movable contact end) and three normally closed contact end open circuit, like this, the power of converter A3's three power output end U, V, W output can not get into booster pump M's power input end through the three normally closed control power output end of relay J3 (also three normally closed contact end) again, 380V power is direct directly gets into booster pump M's power input end through the three normally open control power output end of relay J3 (three normally open contact end), booster pump M gets electric work. That is to say, the input power supply of booster pump M no longer receives converter A3 control, work under maximum power, has satisfied this novel energy-conserving mode under, that is to say that adjustable resistance RP's resistance value is great, and booster pump M work is under the lower frequency power, with the low peak time section of water, under extreme condition, because of the great water supply needs when various reasons user pipeline 9 side suddenly the water consumption increases. Under the energy-saving mode, when the utility model is in an extreme condition, a 380V power supply directly enters a booster pump M, the booster pump M pumps a large amount of water into a user pipeline 9 side, when the water level is at the highest water level of a pipeline 9, the floater of a water level switch S rises due to the buoyancy of the water, the internal contacts of the floater are opened, then a wireless transmitting circuit A5 can not be electrified to work and can not transmit wireless signals, a wireless signal receiving module finished product A4 can not receive a wireless closing signal, 4 feet of the floater can not output high level any more, then relays J2 and J3 lose electricity successively, three control power supply output ends and three normally open contact ends of the relay J3 are opened after the electricity is lost, three control power supply output ends and three normally closed contact ends of the relay J3 are closed, thus, the power supply output by three power supply output ends U, V, W of a frequency converter A3 enters the power supply input end of the booster pump, the booster pump M again operates in the energy saving mode. Under the energy-conserving mode, if the water level in user's pipeline 9 side is less than the highest water level once more, then with above-mentioned process complete unanimity, 380V power can get into booster pump M alone again, and booster pump M is the inboard pumping of user's pipeline and is greater amount, great pressure running water, has satisfied actual water supply needs.

Fig. 4, relays J2, J3, J4 are DC12V relays, relay J2 has two power inputs, one control power input, one normally open contact end, one normally closed contact end, relays J3 and J4 have two power inputs, three control power inputs, three normally open contact ends, three normally closed contact ends; the resistance values of the resistor R, R1 are 500 omega and 1K respectively; the specification of the adjustable resistor RP is 4.7K; the NPN transistor Q1 is model number 9013.

The essential features of the invention and the advantages of the invention have been shown and described above, it being obvious to a person skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, but that it can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The intelligent non-negative pressure water supply equipment comprises a non-negative pressure water supply device body, a stabilized voltage power supply, a frequency converter and a motor speed reducing mechanism, wherein the frequency converter is matched with a speed-regulating adjustable resistor; it is characterized by also comprising a time control circuit, a wireless control circuit and a wireless receiving circuit; the device comprises two sets of stabilized voltage power supplies, wherein the first set of stabilized voltage power supply, a frequency converter, a motor speed reducing mechanism, a time control circuit and a wireless receiving circuit are arranged in an electrical control box of a non-negative-pressure water supply device body, and adjustable resistance adjusting handles of a power output shaft of the motor speed reducing mechanism are connected together; the wireless control circuit comprises a water level switch and a wireless transmitting sub-circuit, the wireless transmitting sub-circuit and the second set of stabilized voltage supply are arranged in the element box, and the water level switch is arranged in the highest point of a user pipeline of the high-rise building; the power input end of the frequency converter, the normally-open control power end of the wireless receiving circuit are electrically connected with an alternating-current power supply, the power output end of the frequency converter is electrically connected with the normally-closed control power end of the wireless receiving circuit, and the power input end of the booster pump of the non-negative-pressure water supply device body is electrically connected with the control power output end of the wireless receiving circuit; the power output ends of the first set of stabilized voltage supply are respectively and electrically connected with the power input ends of the time control circuit, the wireless receiving circuit and the frequency converter; the two paths of power supply output ends of the time control circuit are respectively and electrically connected with the positive and negative poles and the negative and positive poles of the motor reducing mechanism; the positive electrode of the power output end of the second set of stabilized voltage power supply is connected with one end of the water level switch through a lead, and the other end of the water level switch, the negative electrode of the power output end of the second set of stabilized voltage power supply and the two ends of the power input of the wireless transmitting sub-circuit are respectively and electrically connected.

2. The intelligent non-negative pressure water supply equipment according to claim 1, wherein the first set and the second set of stabilized voltage power supplies are AC-DC switching power supply modules.

3. The intelligent non-negative pressure water supply equipment according to claim 1, wherein the frequency converter is FR-D720-8K in type.

4. The intelligent non-negative pressure water supply equipment according to claim 1, wherein the motor reduction mechanism is a coaxial motor gear reducer.

5. The intelligent non-negative pressure water supply equipment according to claim 1, wherein the time control circuit comprises two sets of time control switches which are connected through a circuit board, and the two ends of the power input of the two sets of time control switches are respectively connected; the time control switch is a microcomputer time controller.

6. The intelligent non-negative pressure water supply device according to claim 1, wherein the wireless receiving circuit comprises a wireless signal receiving module, a resistor, an NPN triode and a relay, the wireless signal receiving module, the resistor, the NPN triode and the relay are connected through a circuit board in a wiring mode, a positive power input end of the wireless signal receiving module is connected with a positive electrode of the first relay and a control power input end of the first relay, a first output end of the wireless signal receiving module is connected with one end of the resistor, the other end of the resistor is connected with a base electrode of the NPN triode, a collector electrode of the NPN triode is connected with a negative power input end of the first relay, a normally open contact end of the first relay is connected with a positive power input end of the second relay, and an emitting electrode of the.

7. The intelligent non-negative pressure water supply equipment according to claim 1, wherein the two contacts under the first button of the wireless transmitting sub-circuit of the wireless control circuit are electrically connected together, and one end of the water level switch is connected with the positive power input end of the wireless transmitting sub-circuit.