Emergency guarantee water supply system for secondary water supply pump house

Abstract

The utility model discloses an emergency guarantee water supply system for a secondary water supply pump room, and relates to the technical field of emergency water supply. When sudden secondary water supply pump room fault water cut-off basically occurs in a control system fault, a control cabinet is additionally arranged, and a PLC is used for being in remote transmission connection with an information upper computer; remote detection and remote control of the pressure of the pressurization subarea are realized; when the control system breaks down, the pressure of the subareas is detected or a first multi-household water-free work order is received, and manual remote opening is conducted. And a frequency converter in the emergency system control cabinet is controlled by a PLC to set the pressure of a fault pressurization area, constant-pressure water supply is achieved, and time is won for emergency repair.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of emergency water supply, and specifically relates to an emergency water supply system for a secondary water supply pump house. BACKGROUND

[0002] The utility model discloses a water supply emergency control terminal system discloses the utility model discloses a water supply emergency control terminal system, including water inlet tank, water distribution pipeline, emergency water tank, emergency water pump, reservoir water suction pump, filter device, booster pump, tap water system pipeline and water pressure meter, water inlet tank is connected buffer pipeline through the pipeline, buffer pipeline connects water distribution pipeline, water distribution pipeline connects emergency water pump, emergency water pump one side is connected with emergency supply system water outlet pipeline, emergency water pump is connected through the wire on water pressure meter touch switch, emergency water tank connects emergency water suction system inlet pipeline, emergency water tank connects emergency supply system water outlet pipeline, the upper connection of buffer pipeline is equipped with filter device, two are fixedly provided to filter device, the upper connection of filter device all is equipped with booster pump, booster pump is connected tap water system pipeline through the pipeline, the utility model discloses a kind of practical new type, high efficiency, automatic, can keep tap water pressure stable all the time.

[0003] However, for emergency water supply, how to ensure emergency water supply in case of emergency is a difficult problem, and therefore a solution is provided. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art;

[0005] To this end, the present application provides an emergency water supply system for a secondary water supply pump house, comprising a control end one connected to three-phase power, a plurality of frequency converters in the control end one directly connected to a plurality of pressure units of corresponding users, the pressure units directly connected to water tanks, and the water tanks in communication with municipal pipe networks.

[0006] The control end one further comprises a PLC controller one for controlling the frequency converters, and an alternating current contactor is arranged between the frequency converters and water pumps, the number of the alternating current contactors corresponding to the water pumps and the frequency converters one by one.

[0007] A control end two is externally connected to the three-phase power, the control end two externally connected to a bypass water inlet valve through a control line, and a bypass pipeline is newly added between the municipal pipe networks and the water tanks.

[0008] Further, the pressure units are water pumps, the number of the frequency converters corresponding to the number of the water pumps, and the frequency converters connected to three phase lines L1, L2 and L3 of the three-phase power.

[0009] Further, the PLC controller one is connected to an N terminal of the three-phase power.

[0010] Further, the bypass pipeline controls the water entering through the bypass water inlet valve.

[0011] Further, the control end two is connected to the three phase lines L1, L2 and L3 of three-phase power.

[0012] Further, the control end two comprises a PLC controller two and a frequency converter and a current transformer, and the current transformer is used to detect whether the current of the frequency converter of each pressurization area is normal.

[0013] The PLC controller two is used to cut off the original output line when the operating current of a certain pressurization area is zero, and the frequency converter in the control cabinet is set to the pressure of the fault pressurization area by the PLC controller two.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] When the sudden secondary water supply pump room fails to stop water supply, the control cabinet is added by the application, the PLC and the information host computer are remotely connected, the remote detection of the pressurization area pressure and the remote control are realized, when the control system fails, the pressure of the pressurization area is detected or the first multi-house waterless work order is received, and the remote opening is manually started.

[0016] Therefore, the application can restore the user water supply in a very short time of fault water stop, the frequency converter in the emergency system control cabinet is set to the pressure of the fault pressurization area by the PLC control, and the constant pressure water supply saves time for emergency repair. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The figure is a hardware block diagram of the application;

[0018] Fig. 2 The figure is a hardware block diagram of the control end two of the application. DETAILED DESCRIPTION

[0019] The technical solutions of the application will be described in detail below with reference to the embodiments, obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the application.

[0020] Please refer to Figs. 1-2 The application provides a secondary water supply pump room emergency guarantee water supply system, the pump room water supply system in the prior art, specifically comprising:

[0021] The control end one is connected to three-phase power, a plurality of frequency converters one in the control end one are directly connected to a plurality of pressurization units corresponding to users, the pressurization units are water pumps, the number of the frequency converters one is set according to the number of the water pumps, and the frequency converters one are connected to the three phase lines L1, L2 and L3 of three-phase power.

[0022] The control end one further comprises a PLC controller one, which is connected with the N end of the three-phase electricity and used for controlling the pressurizing unit;

[0023] The water pump is directly connected with the water tank, and the water tank is communicated with the municipal pipe network;

[0024] The technical scheme of the present application is characterized in that an AC contactor is newly added between the frequency converter one and the water pump, and the number of the AC contactors corresponds to the water pumps and the pressurizing units one by one;

[0025] The control end two is externally connected with three phase lines L1, L2 and L3 of the three-phase electricity, and is a PLC control box, which is externally connected with a bypass water inlet valve through a control line, and a bypass pipeline is newly added between the municipal pipe network and the water tank, and the bypass pipeline controls the water inlet through the bypass water inlet valve;

[0026] The control end two is internally provided with a frequency converter two, which is electrically connected with the water pumps, and the connection points are between the frequency converter one and the water pumps;

[0027] The control end two comprises a PLC controller two, a frequency converter two and a current transformer; the current transformer is used for detecting whether the outgoing current of the frequency converter one of each pressurizing area is normal, and the detection data is transmitted to the PLC controller two for judgment; if the operating current of a certain pressurizing area is zero, the PLC controller two controls the AC contactor to cut off the original output line, the frequency converter two in the control cabinet is set by the PLC controller two to the pressure of the fault pressurizing area, constant pressure water supply, and the pressure setting of each pressurizing area is input to the PLC controller two in advance, and the PLC controller two is used for automatic constant pressure control;

[0028] The above embodiments are only used for describing the technical method of the present application but not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical method of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the present application.

Claims

1. An emergency water supply system for a secondary water supply pump house, comprising a control end one connected to three-phase power, a plurality of frequency converters one in the control end one directly connected to a plurality of pressurizing units corresponding to users, the pressurizing units directly connected to water tanks, and the water tanks in communication with municipal pipe networks; The control terminal one further comprises a PLC controller one for controlling the frequency converter one; characterized in that, An alternating current contactor is arranged between the frequency converters one and water pumps, and the number of the alternating current contactors corresponds to the water pumps and the frequency converters one; A control end two is externally connected to the three-phase power, the control end two externally connected to a bypass water inlet valve through a control line, and a bypass pipeline is newly added between the municipal pipe networks and the water tanks.

2. The emergency guarantee water supply system of a secondary water supply pump house according to claim 1, characterized in that, The pressurizing units are water pumps, the number of the frequency converters one corresponds to the number of the water pumps, and the frequency converters one are connected to three phase lines L1, L2 and L3 of the three-phase power.

3. The emergency water supply system for a secondary water supply pump house according to claim 1, characterized in that, A PLC controller one is connected to an N terminal of the three-phase power.

4. The emergency water supply system for a secondary water supply pump house according to claim 1, characterized in that, The bypass pipeline controls the water inlet through the bypass water inlet valve.

5. The emergency water supply system for a secondary water supply pump house according to claim 1, characterized in that, The control end two is connected to the three phase lines L1, L2 and L3 of the three-phase power.

6. The emergency water supply system of a secondary water supply pump house according to claim 1, characterized in that, The control end two comprises a PLC controller two, a frequency converter two and a current transformer, and the current transformer is used to detect whether the outgoing current of each pressurizing area frequency converter one is normal; The PLC controller two is used to cut off the original output line when the operating current of a certain pressurizing area is zero, and the frequency converter two in the control cabinet is set to the pressure of the fault pressurizing area by the PLC controller two.

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