CN201024438Y - Superimposed pipeline pressurized water supply device - Google Patents

Abstract

The utility model relates to a superimposed pipeline pressurized water supply device for secondary pressurization on a tap water pipeline. It is equipped with inlet and outlet pipes, drain valves and inspection holes on the water storage tank, with inlet holes, exhaust and suction valve holes, and an electrical control box. There are liquid level switches and at least two submersible pumps. The outlet pipes connected to the submersible pumps are connected to the water collection pipes with outlet pipes equipped with remote pressure gauges, and cut-off pipes are provided on the outlet pipes connected to the submersible pumps. Valves and reverse check valves, line inlet seals are provided at the line inlet holes, row and suction valves and air filters connected to the row and suction valves are arranged at the holes of the exhaust and suction valves, and air filters connected to the exhaust and suction valves are installed at the inspection holes There is a sealing cover at the place, and in the electrical control box, there is a main circuit circuit connected with the submersible pump, and a control signal circuit circuit connected with the liquid level switch, the remote pressure gauge and the main circuit circuit.

Description

Superposing type pipe pressurizing water supply installation

Affiliated technical field

The utility model relates to a kind of superposing type pipe pressurizing water supply installation that is used for the secondary pressurization on the tap water pipe line.

Background technology

It is reported that at present, the water supply installation majority that is used for the secondary pressurization on the tap water pipe line is the secondary pressurization buffer-type water supply installation that is made of storage tank or reservoir, pressure pump and electrical apparatus control equipment.It has following weak point: one, because water tank or reservoir are the secondary pollutions that causes opening so as easy as rolling off a log.Two, because the water in water tank or pond is to close water inlet pipe mouth by float valve after expiring, therefore the city planting ductwork water supply overbottom pressure power that causes sealing can not get utilizing fully, increases water head site and keeps the electric energy of hydraulic pressure to expend, and water supply cost is increased.

Summary of the invention

The utility model aims to provide a kind of reasonable in design, simple in structure, stable and reliable for performance, non-maintaining, long service life of operation, energy consumption is low, noise is extremely low, eliminate secondary pollution, can be embedded in underground superposing type pipe pressurizing water supply installation.

The technical scheme that its technical problem that solves the utility model adopts is: have into including, outlet pipe, have entrance hole on the water tank of sluicing blowoff valve and inspection eye, row, air-breathing valve opening, and be provided with electric appliance control box, in water tank, be provided with liquid-level switch and at least two submersible pumps, respectively the outlet pipe that is connected with submersible pump all be provided with the manometric header that has outlet pipe of teletransmission and be connected, and with outlet pipe that submersible pump is connected on be provided with stop valve and reverse flap valve, be provided with the inlet wire seal at the entrance hole place, row, air-breathing valve opening place is provided with row, inlet valve and with row, the air filter that inlet valve connects, the place is provided with seal cover at inspection eye, in electric appliance control box, be provided with the circuit main loop circuit that is connected with submersible pump, with liquid-level switch, the control signal loop circuit that the teletransmission pressure meter is connected with the circuit main loop circuit.

The beneficial effects of the utility model are, owing to adopted technique scheme, therefore had reasonable in design, simple in structure, stable and reliable for performance, operation is non-maintaining, long service life, energy consumption is low, noise is extremely low, eliminate secondary pollution, can be embedded in the inferior advantage in ground.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a circuit block diagram of the present utility model.

Fig. 3 is circuit main loop circuit figure of the present utility model.

Fig. 4 is control signal loop circuit figure of the present utility model.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, have inspection eye, row, air-breathing valve opening and two entrance holes on the top of the water tank of making by stainless steel 1.Be welded with the pipe that seal cover 2 is installed at the inspection eye place.Be welded with the tube connector of the row of being equipped with, inlet valve 5 at row, air-breathing valve opening place, and on row, inlet valve 5, be connected with air filter 18 by tube connector.The rubber seal 6 that is installed with lead is installed at two entrance hole places.Be welded with the water inlet pipe 4 that strainer 3 is installed in the left side of water tank 1.Be welded with horizontal three outlet pipes that stop valve 12 and reverse flap valve 11 are installed 7 and the support that electric appliance control box 8 is installed on the right side of water tank 1.Be welded with tube connector and the bearing 14 that sluicing blowoff valve 13 is installed in the bottom of water tank 1.Bottom in water tank 1 is welded with 3 horizontal supports 17, and the submersible pump 16 that is connected respectively with three outlet pipes 7 is installed on support 17, and liquid-level switch 15 is installed in water tank 1.Three outlet pipes 7 all are welded in the top teletransmission pressure meter 9 are installed, and the bottom is welded with on the header 10 of outlet pipe 7.The circuit main loop circuit 20 and the control signal loop circuit 21 that are connected with submersible pump 16, liquid-level switch 15 and teletransmission pressure meter 9 by lead are installed in electric appliance control box 8.Circuit main loop circuit 20 is by the air switch K1 that is connected with three phase mains, frequency converter 19, contactor C1, C2, C3, C4, C5, C6 and 3 submersible pumps 16 constitute, three input terminals of the air switch K1 of its circuit main loop circuit 20 respectively with the terminal L1 of three phase mains phase line, L2, L3 connects, three outlet terminals of air switch K1 respectively with the power supply R of frequency converter 19, S, the T terminal connects, and with contactor C2, C4, the input terminal of the correspondence of C6 also connects, the output U of frequency converter 19, V, W respectively with contactor C1, C3, the corresponding input terminal of C5 connects, contactor C1, the corresponding outlet terminal of C2 and connect after be connected with the motor lines of the 1st submersible pump 16 respectively, contactor C3, the corresponding outlet terminal of C4 and connect after be connected with the motor lines of the 2nd submersible pump 16 respectively, contactor C5, the corresponding outlet terminal of C6 and connect after be connected with the motor lines of the 3rd submersible pump 16 respectively, the terminal of frequency converter 19 is connected the back and is connected with system open air earthing pole with the unit earth point; Control signal loop circuit 21 is by two phase electricity source switch K2, fuse RD, liquid-level switch 15, microcomputer constant pressure water supply controller 22, frequency converter 19, contactor C1, C2, C3, C4 and teletransmission pressure meter 9 constitute, the power input terminal N of the zero line N of the power supply of its control signal loop circuit 21 and microcomputer constant pressure water supply controller 22 and contactor C1, C2, [C3], C4, C5, a terminal of the coil of C6 also connects, the end of fuse RD is connected with an end of K switch 2, the other end of K switch 2 is connected with phase line of power L1, the power input terminal L of the other end of fuse RD and microcomputer constant pressure water supply controller 22 and terminal R1, R3, R2, R4, R5, the end of R6 connects, contactor C1, C3, C2, C4, C5, the other end of the coil of C6 respectively with the terminal R1 of microcomputer constant pressure water supply controller 22, R3, R2, R4, R5, the other end of R6 connects, the terminal CM1 of microcomputer constant pressure water supply controller 22, FWD, CM2, D/A, CT1 respectively with the control terminal COM of frequency converter 19, FWD, GND, CCI, TA connects, the terminal CT2 of microcomputer constant pressure water supply controller 22 is connected with an end of liquid-level switch 15, the other end of liquid-level switch 15 is connected with the terminal CM2 of microcomputer constant pressure water supply controller 22, the control terminal TC of frequency converter 19 is connected with the control terminal GND of itself, the output low side of teletransmission pressure meter 9 is connected with the terminal G of microcomputer constant pressure water supply controller 22, and the outlet terminal of teletransmission pressure meter 9 is connected with the terminal IN of microcomputer constant pressure water supply controller 22.What its submersible pump 16 adopted is that the model that Shenyang submersible pump limited company produces is the submersible pump of 150QJ30-39/6.Its microcomputer constant pressure water supply controller 22 adopts is that to cultivate the model that Electric Applicance Co., Ltd produces be the microcomputer constant pressure water supply controller of HK300-136 in Shenyang China.What its row, inlet valve 5 adopted is that the model that Shanghai fixed star pump valve Manufacturing Co., Ltd produces is row, the inlet valve of PX42X/DN25.What frequency converter 19 adopted is that the model that Emerson Network Power CO., Ltd produces is the frequency converter of EV2000-4T0055G.

Its operating principle:

Water inlet pipe on the water tank is connected on the tap water pipe line, and opens valve water filling in water tank, connect power supply simultaneously, the float of row, inlet valve falls and is in exhaust condition when anhydrous in the water tank or water level hang down.Along with the rising of liquid level, the float of liquid-level switch rises, and switch disconnects, and microcomputer constant pressure water supply controller starts the running of Frequency Converter Control submersible pump and supplies water.When the single pump pressure of supply water can satisfy default value, system just regulated constant-pressure operation voluntarily by setting pressure.When rising to power frequency (water pump is in maximum water supply flow state) as the single pump running frequency, system's actual pressure still can not reach setting value and just will work as front pump and change and to switch to power frequency and start the water supply of being incorporated into the power networks of second pump frequency conversion voluntarily, then start follow-up stand by pump successively, when system pressure was stabilized in setting value, system entered adjustment state voluntarily.When the system water supply amount caused system's actual pressure to continue to be higher than setting value greater than water supply volume, unnecessary pump just can excise automatically in system, readjusts system running state, and it is constant to keep-up pressure.Along with the water level in the water tank rises, valve was in closed condition when the float of row, inlet valve rose to top dead centre, stopped exhaust.When the pressure in the water tank rises to into the water ductwork pressure, because pipe-line system is in air-tight state, this pressure just be superimposed upon on the submersible pump pressure of supply water and by the outlet pipe on the header to user's pipe network water supply, the pressure that has made full use of the water source pipe network plays booster action to user's pipe network water supply.When peak water or water source pipe network water shortage occurring, when the inflow in the water tank is less than water yield, drawdown in the water tank, the ball float of row, inlet valve just moves down unlatching and suck air in jar, produces the influence of negative pressure to the water source pipe network in the water tank to eliminate.Its strainer is to be used for preventing that airborne suspension from entering in the water tank.Along with the minimizing of water supply volume, when the water level in the water tank rose to the liquid level stop, row, inlet valve were closed.When the water source pipe network occurring and cut off the water, when the water level in the water tank was evacuated to the lower dead center of liquid-level switch by submersible pump, liquid-level switch was closed, and microcomputer constant pressure water supply controller cuts off the control power supply automatically, submersible pump shuts down, and avoids damaging and the expending of electric energy because of the idle running of anhydrous submersible pump.

Claims (3)

1. A superimposed pipeline pressurized water supply device, including a water storage tank [1] with inlet and outlet pipes [4], [7], drain valve [13] and inspection hole [2]. It is characterized in that the water storage tank [1] is provided with inlet holes, exhaust and suction valve holes, an electrical control box [8], and a liquid level switch [15] and At least two submersible pumps [16], the outlet pipes [7] connected to the submersible pumps [16] are all connected to the water collection pipe [10] with the outlet pipe [7] provided with a remote pressure gauge [9], And the outlet pipe [7] connected with the submersible pump [16] is provided with a shut-off valve [12] and a reverse check valve [11], and an inlet seal [6] is provided at the inlet hole. The suction valve hole is provided with exhaust and suction valves [5] and an air filter [18] connected to the exhaust and suction valves [5], and a sealing cover is provided at the inspection hole [2]. [8] is provided with the circuit main circuit circuit [20] connected with the submersible pump [16], and the control signal circuit connected with the liquid level switch [15], the remote pressure gauge [9] and the circuit main circuit circuit [20] circuit [21]. 2. The superimposed pipeline pressurized water supply device according to claim 1, characterized in that said main circuit circuit [20] is composed of an air switch [K1] connected to a three-phase power supply, a frequency converter [19], Contactors [C1], [C2], [C3], [C4], [C5], [C6] and 3 submersible pumps [16] constitute the air switch [K1] of the circuit main circuit circuit [20] The three incoming terminals are respectively connected to the terminals [L1], [L2], [L3] of the phase wires of the three-phase power supply, and the three outgoing terminals of the air switch [K1] are respectively connected to the power supply [R], [S], [T] terminals are connected, and connected in parallel with the corresponding incoming line terminals of the contactor [C2], [C4], [C6], the output terminals [U], [V], [W] are respectively connected to the corresponding incoming line terminals of the contactors [C1], [C3], [C5], and the corresponding outgoing line terminals of the contactors [C1], [C2] are parallel connected to the first submersible pump [16 ], the corresponding outlet terminals of the contactors [C3] and [C4] are connected in parallel with the motor wires of the second submersible pump [16] respectively, and the corresponding outlet terminals of the contactors [C5] and [C6] After connecting them in parallel, they are respectively connected to the motor wires of the third submersible pump [16], and the terminals of the frequency converter [19] are connected to the grounding point of the unit and then connected to the outdoor grounding electrode of the system. 3. The superimposed pipeline pressurized water supply device according to claim 1, characterized in that said control signal loop circuit [21] is composed of a two-phase power switch [K2], a fuse [RD], a liquid level switch [ 15], microcomputer constant pressure water supply controller [22], frequency converter [19], contactors [C1], [C2], [C3], [C4] and remote pressure gauge [9], the control signal loop The neutral line [N] of the power supply of the circuit [21] and the power input terminal [N] of the microcomputer constant pressure water supply controller [22] and the contactor [C1], [C2], [C3], [C4], [C5 ], [C6], one terminal of the coil is connected in parallel, one end of the fuse [RD] is connected to one end of the switch [K2], the other end of the switch [K2] is connected to the phase line [L1] of the power supply, and the fuse [RD] ] is connected with the power input terminal [L] of the microcomputer constant pressure water supply controller [22] and one end of the terminals [R1], [R3], [R2], [R4], [R5], [R6], The other ends of the coils of the contactors [C1], [C3], [C2], [C4], [C5], [C6] are respectively connected to the terminals [R1], [R3] of the microcomputer constant pressure water supply controller [22] , [R2], [R4], [R5], [R6] are connected to the other end, and the terminals [CM1], [FWD], [CM2], [D/A] of the microcomputer constant pressure water supply controller [22], [CT1] is respectively connected to the control terminals [COM], [FWD], [GND], [CCI], [TA] of the inverter [19], and the terminal [CT2] of the microcomputer constant pressure water supply controller [22] is connected to the liquid One end of the level switch [15] is connected, the other end of the liquid level switch [15] is connected with the terminal [CM2] of the microcomputer constant pressure water supply controller [22], the control terminal [TC] of the frequency converter [19] is connected with its own control The terminal [GND] is connected, the output low end of the remote pressure gauge [9] is connected to the terminal [G] of the microcomputer constant pressure water supply controller [22], the output terminal of the remote pressure gauge [9] is connected to the microcomputer constant pressure water supply controller Connect to terminal [IN] of device [22].

Images