CN114396098A - Control method of raw water tank control system - Google Patents

Abstract

The control method of the raw water pool control system comprises the steps that the raw water pool control system comprises a raw water pool, a clean water pool, water treatment equipment, a first water pump, a second water pump, a power supply circuit and a control circuit, wherein the first water pump and the second water pump are used for pumping underground water to the raw water pool, and a raw water pool water level gauge and a clean water pool water level gauge for measuring water levels are respectively arranged in the raw water pool and the clean water pool; the control method of the raw water pool control system is realized by the following steps: a) pumping water by a double water pump; b) pumping water by a single water pump; c) stopping pumping water; d) pumping water from a clean water tank; e) the clean water tank stops pumping water. According to the control method of the raw water pool control system, when the water level in the raw water pool is too low due to too large water consumption, the two water pumps are started to pump water, and when the water level in the raw water pool is not too low, one water pump is started to pump water, so that a good water-saving effect is achieved.

Description

Control method of raw water tank control system

technical field

The invention relates to a control method of a raw water tank control system, more specifically, to a control method of an energy-saving raw water tank control system.

Background technique

In places where the water pipe network cannot be reached, such as cement plants and power plants in remote suburbs, groundwater needs to be pumped out as domestic water and firefighting water. The current water supply system is as follows: first, the groundwater is pumped and injected into the original pool by a water pump, and then the water in the original pool is pumped to the water treatment equipment for water softening treatment, and the softened groundwater can enter the clear water pool. , for living and fire fighting purposes.

In order to ensure that there is no water shortage during the centralized water use period, high-power water pumps are usually used to pump groundwater in the future. To ensure that there is sufficient water supply during the time period when fire water or domestic water is concentrated, frequent startup of high-power water pumps will not be conducive to energy saving.

At present, a submersible pump located at the bottom of the original tank is usually used to pump the water in the original tank to the water treatment equipment. During the pumping process, the vibration of the submersible pump is easy to cause damage, the maintenance success is high, and it is easy to cause domestic water and fire protection. The interruption of water use has adverse effects on production and life. Furthermore, at present, the frequency conversion control of the water pump is carried out by means of a wired cable, which will lead to a lot of wiring on site, and the wiring is complicated and messy. When the cable is damaged, the water pump cannot work normally.

SUMMARY OF THE INVENTION

In order to overcome the shortcomings of the above technical problems, the present invention provides a control method of a raw water tank control system.

The control method of the raw water tank control system of the present invention is characterized in that the raw water tank control system includes a raw water tank, a clean water tank, water treatment equipment, a first water pump, a second water pump, a power supply circuit and a control circuit, the first water pump and the second water pump The water pump is used to pump groundwater to the original pool, and the original pool water level gauge and the clean water pool water level gauge are respectively set in the original pool and the clean pool to measure the water level; The water pump is used to pump the water in the raw water tank to the water treatment equipment. The water outlet of the water treatment equipment is connected with the clean water tank through a pipeline. The water outlet pipe of the clean water tank is provided with a fire pump and a domestic water pump; the power supply circuit includes three-phase power supply and Single-phase power supply, three-phase power supply power supply to the first water pump, second water pump and purification water pump through circuit breaker and water pump inverter in turn, and single-phase power supply is used to supply power to control circuit;

The control circuit includes a water level gauge circuit module of the original pool, a water level gauge circuit module of a clear water pool, a wireless control transmitter module of the original pool, a wireless control receiving module of the first water pump, and a wireless control receiving module of the second water pump. Relay KA2, relay KA3, relay KA4 and relay KA5 are provided. Relays KA2, KA3, KA4 and KA5 respectively output high and high water level alarm signals, high water level alarm signals, low water level alarm signals and low and low water level alarm signals of the original pool; The circuit module of the pool water level gauge is provided with relay KA8, relay KA9, relay KA10 and relay KA11. Relays KA8, KA9, KA10 and KA11 respectively output the low water level alarm signal, low and low water level alarm signal, high and high water level alarm signal and High water level alarm signal; relay KA1 and relay KA2 are set on the wireless control transmitter module of the original water tank, the first water pump wireless control receiving module is set with a relay KM1 that controls the first water pump to work, and the second water pump wireless control receiving module is set with a control The relay KM2 for the second water pump to work;

Including relay KT, relay KM3, water diversion solenoid valve YA1, the two ends of the normally open point of KA4 and the normally open point of KM1 are connected in parallel with one end of the single-phase power supply and one end of the normally closed point of KA2, respectively. The two ends of the coil after parallel connection are respectively connected to the other end of the single-phase power supply and the other end of the normally closed point of KA2; the two ends of the normally open point of KA5 and the normally open point of KM2 are connected to one end of the single-phase power supply and the other end of the normally open point of KA3 respectively. One end of the normally closed point, the two ends of the coil of KA5 and the coil of KM2 after parallel connection are connected to the other end of the single-phase power supply and the other end of the normally closed point of KA3;

The two ends of the normally open point of KA8 and the normally open point of KM3 are connected in parallel to one end of the single-phase power supply and the one end of the normally closed point of KM4, respectively. The other end of the valve and the other end of the normally closed point of KM4; the normally open point of KA11, the normally open point of KT and the coil of the water diversion solenoid valve YA1 are connected in series in sequence, and the two ends are respectively connected to the two ends of the single-phase power supply, KA11 is normally open KM4 is connected in parallel at both ends of the point, and KM4 is connected in parallel at both ends after the normally open point of KT is connected in series with the coil of the water diversion solenoid valve YA1;

The control method of the raw water tank control system is realized through the following steps:

a).Double-pump pumping, set the initial state as the original pool without water and the clean pool without water; after the original pool control system is turned on, because the original pool has no water, the original pool water level gauge circuit module outputs the low and low water level alarm in the original pool through relay KA5 Signal, the low water level alarm signal of the original tank is output through the relay KA4; the normally open point of KA5 is closed, the coil of the relay KM2 is energized, the normally open point of KM2 is closed, and the second water pump starts; the normally open point of KA4 is closed, the coil of the relay KM1 is energized, and the KM1 The normally open point is closed, and the first water pump is started; the first water pump and the second water pump simultaneously pump the groundwater into the original pool;

b). Single pump pumps water. With the continuous rise of the water level in the original tank, when the water level exceeds the high water level alarm signal of the original tank, the original tank water level gauge circuit module outputs the high water level alarm signal through KA3, and the normally open point of KA3 is disconnected. On, the coil of relay KM2 is powered off, and the second water pump stops pumping;

c). Pumping stops, with the further rise of the water level in the original pool, when the water level exceeds the high and high water level alarm signal of the original pool, the original pool water level gauge circuit module outputs the high water level alarm signal through KA2, and the normally open point of KA2 is disconnected Open, the coil of relay KM1 is powered off, the first water pump stops pumping, and both the first water pump and the second water pump stop pumping;

d). The clean water pool is pumped. Since the original state of the clean water pool is sewage, the low alarm signal KA8 of the water level gauge circuit module of the clean water pool is closed, and the coil of the relay KM3 is energized. The water treatment equipment is pumped into the clear water pool;

e). The clear water tank stops pumping water. As the liquid level of the clear water tank continues to rise, when the water level of the clear water tank exceeds the high water level alarm signal of the clear water tank, the high water level alarm signal KA11 of the circuit module of the clear water tank water level gauge is closed, and the relay KM4 coil is closed. Power on, the normally closed point of KM4 is disconnected, the coil of relay KM3 is powered off, and the purification pump stops pumping water.

In the control method of the original water tank control system of the present invention, the water treatment equipment and the pipeline at the outlet end of the purification pump are connected through a water lead pipe, the water lead solenoid valve YA1 is arranged on the water lead pipe, and the water lead battery valve YA1 is connected with the lead pipe before the water treatment equipment. A ball valve is provided on the water pipe.

The beneficial effects of the present invention are: in the control method of the raw water tank control system of the present invention, the first and second water pumps are set to pump water to the raw water tank, and a water level gauge for water level detection and a control circuit for pumping control are set in the raw water tank , In this way, one pump or two pumps can be selected to extract groundwater according to the water level in the original pool. When the water level in the original pool is too low due to excessive water consumption, the two pumps are turned on to pump water. When the water level of the pool is not too low, a water pump is turned on to pump water, which has a good water saving effect.

At the same time, the original submersible pump set at the bottom of the original pool was changed to a purification pump set on the pipeline between the original pool and the water treatment equipment. When the water level in the clear water pool reaches a low level, the purification pump is controlled by frequency conversion to pump water to the water treatment equipment and clear water pool. When the water level in the clear water pool reaches a high level, the water pumping is stopped by frequency conversion, which further reduces energy consumption.

Description of drawings

Fig. 1 is the structural representation of the raw water tank control system of the present invention;

Fig. 2 is the power supply circuit diagram of the first water pump, the second water pump and the third water pump in the present invention;

3 is a schematic diagram of a control circuit in the present invention;

Fig. 4 is the wiring diagram of the circuit module of the original pool water level gauge in the present invention;

Fig. 5 is the wiring diagram of the water level gauge circuit module of the clear water pool in the present invention;

Fig. 6 is the wiring diagram of the wireless control transmitter module of the original water pool in the present invention;

Fig. 7 is the wiring diagram of the first water pump wireless control receiving module in the present invention;

FIG. 8 is a wiring diagram of the wireless control receiving module of the second water pump in the present invention.

In the picture: 1 raw water tank, 2 clean water tank, 3 water treatment equipment, 4 first water pump, 5 second water pump, 6 purification water pump, 7 raw water level gauge, 8 clean water pool water level gauge, 9 water lead pipe, 10 ball valve, 11 Drinking water solenoid valve, 12 fire water pump, 13 domestic water pump, 14 three-phase power supply, 15 water pump inverter, 16 circuit breaker, 17 original pool water level gauge circuit module, 18 clear water pool water level gauge circuit module, 19 original pool wireless control transmitter module, 20 The first water pump wireless control receiving module, 21 the second water pump wireless control receiving module, 22 the single-phase power supply.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1, a schematic structural diagram of the raw water tank control system of the present invention is given, which consists of a raw water tank 1, a clean water tank 2, a water treatment equipment 3, a first water pump 4, a second water pump 5, a purification water pump 6, a The pool water level gauge 7 and the clear water pool water level gauge 8 are constituted. The first water pump 4 and the second water pump 5 are used to pump groundwater into the original pool 1, and the original pool 1 is used to temporarily store the extracted water. The original pool water level gauge 7 Check the water level in the original pool 1. When it is detected that the water level in the original pool 1 is too low, start two pumps (the first pump 4 and the second pump 5) to pump water. When it is too low, start a water pump (the first water pump 4 or the second water pump 5) to pump water to achieve the purpose of energy saving.

The water outlet of the raw water tank 1 shown is communicated with the water inlet of the water treatment equipment 3 through the pipeline, and the purification pump 6 is arranged on the pipeline between the raw water tank 1 and the water treatment equipment 3, and is used for the water in the raw water tank 1. Pumped into the water treatment equipment 3, the water treatment equipment 3 is used to filter out the excess minerals in the water and realize the softening treatment of the water quality. The water outlet of the water treatment equipment 3 is communicated with the clean water pool 2, and the water softened by the water treatment equipment 3 is discharged into the clean water pool 2, so that the water flowing into the clean water pool 2 meets the drinking requirements. A fire water pump 12 and a domestic water pump 13 are arranged on the pipeline of the water outlet of the clear water pool 2 for fire fighting and living purposes. A water lead pipe 9 is arranged between the shown water treatment equipment and the water outlet pipeline of the purification water pump 6, and a ball valve 10 and a drinking water solenoid valve 11 are arranged on the water lead pipe 9. The water diversion pipe 9 supplies water to the purification water pump 6 to ensure the normal operation of the purification water pump 6 .

The clean water tank water level gauge 8 is arranged in the clean water tank 2 for detecting the water level in the clean water tank 2 , and the purification pump 6 performs pumping operations according to the water level in the clean water tank 2 . When the water level in the clean water pool 2 is low, the purification pump 6 is started by frequency conversion to perform pumping operation; when the water level in the clean water pool 2 is high, water pumping is stopped. Compared with the existing pumping operation using a submersible pump arranged at the bottom of the original water tank 1, it is more energy-saving.

As shown in Figure 2, the power supply circuit diagram of the first water pump, the second water pump and the third water pump in the present invention is given. The circuit part is composed of a power supply circuit and a control circuit. The power supply circuit includes a three-phase power supply and a single-phase power supply. The phase power supplies power to the first water pump 4 , the second water pump 5 and the purification water pump 6 via the circuit breaker 16 and the water pump frequency converter 15 . The control circuit controls the working states of the first water pump 4 , the second water pump 5 and the purification water pump 6 according to the detected liquid levels in the raw water tank 1 and the clean water tank 2 .

As shown in FIG. 4 and FIG. 5 , the wiring diagrams of the water level gauge circuit modules of the original pool and the clean pool in the present invention are respectively provided, and the original pool water level gauge circuit module 17 is provided with relay KA2, relay KA3, relay KA4 and relay KA5, Relays KA2, KA3, KA4, KA5 output high and high water level alarm signals, high water level alarm signals, low water level alarm signals and low and low water level alarm signals of the original pool respectively; , Relay KA10 and relay KA11, relays KA8, KA9, KA10, KA11 respectively output the low water level alarm signal, low and low water level alarm signal, high and high water level alarm signal and high water level alarm signal of the clear water pool.

As shown in Figure 6, Figure 7 and Figure 8, the wiring diagrams of the wireless control transmitter module, the first water pump wireless control receiving module and the second water pump wireless control receiving module in the present invention are respectively given, and the wireless control transmitter module of the raw water pool is provided. 19 is provided with a relay KA1 and a relay KA2, the first water pump wireless control receiving module 20 is provided with a relay KM1 for controlling the first water pump to work, and the second water pump wireless control receiving module 21 is provided with a control The second water pump works with a relay KM2, In order to realize the sending and receiving of wireless signals, and then realize the control of the water pump frequency converter 15 on the first water pump 4 and the second water pump 5 .

As shown in Figure 3, the principle diagram of the control circuit in the present invention is given. The two ends of the normally open point of KA4 and the normally open point of KM1 are connected in parallel to one end of the single-phase power supply and the normally closed point of KA2 respectively. At one end, the coil of KA4 is connected in parallel with the coil of KM1, and the two ends are respectively connected to the other end of the single-phase power supply and the other end of the normally closed point of KA2; the normally open point of KA5 and the normally open point of KM2 are connected in parallel. One end of the single-phase power supply and one end of the normally closed point of KA3, the two ends of the coil of KA5 and the coil of KM2 after parallel connection are respectively connected to the other end of the single-phase power supply and the other end of the normally closed point of KA3.

The two ends of the normally open point of KA8 shown in parallel with the normally open point of KM3 are connected to one end of the single-phase power supply and one end of the normally closed point of KM4, respectively. The other end of the phase power supply and the other end of the normally closed point of KM4; the normally open point of KA11, the normally open point of KT and the coil of the water diversion solenoid valve YA1 are connected in series in sequence, and the two ends are respectively connected to the two ends of the single-phase power supply, KA11 Both ends of the normally open point are connected in parallel with KM4, and the two ends of the normally open point of KT and the coil of the water diversion solenoid valve YA1 are connected in series with KM4.

Its working principle is: when the original tank water level meter 7 detects that the water level in the original tank 1 is low, that is, the original tank low water level alarm signal KA4 is valid, KA4 changes from the open state to the closed state, so that the relay KA4 coil is energized, Then the relay KM1 coil is energized, the normally open point of KM1 is closed, so that the first water pump 4 is pumping; if the water level in the original tank 1 continues to decrease, that is, the original tank low water level alarm signal KA5 is valid, and KA5 changes from the disconnected state to In the closed state, the coil of relay KA5 is energized, and then the coil of relay KM2 is energized, and the normally open point of KM2 is closed, so that the second water pump 5 is pumped, and the two water pumps are turned on for pumping. Similarly, when the high water level alarm signal KA3 of the original tank 1 is valid, the normally closed point of KA3 changes from the closed state to the open state, then the pumping of the second water pump 5 is turned off; when the high and high water level alarm signal KA2 of the original tank 1 When valid, the pumping of the first water pump 4 is further closed.

When the water level meter 8 of the clear water tank detects that the water level in the clear water tank 2 is low, that is, the low water level alarm signal KA8 of the clear water tank is valid, the normally open point of KA8 is closed, the coils of the relay KT and the relay KM3 are energized, and the normally open point of KM3 is closed. , and then drive the purification water pump 6 to carry out the pumping operation, and the relay KT is energized to control the water diversion pipe 9 to open for water replenishment. Immediately, the high water level alarm signal KA11 of the clean water tank is valid, the normally open point of KA11 is closed, the coils of relay YA1 and relay KM4 are energized, the normally closed point of KM4 is disconnected, and the purification pump 6 stops pumping.

The control method of the raw water tank control system is realized through the following steps:

a).Double-pump pumping, set the initial state as the original pool without water and the clean pool without water; after the original pool control system is turned on, because the original pool has no water, the original pool water level gauge circuit module outputs the low and low water level alarm in the original pool through relay KA5 Signal, the low water level alarm signal of the original tank is output through the relay KA4; the normally open point of KA5 is closed, the coil of the relay KM2 is energized, the normally open point of KM2 is closed, and the second water pump starts; the normally open point of KA4 is closed, the coil of the relay KM1 is energized, and the KM1 The normally open point is closed, and the first water pump is started; the first water pump and the second water pump simultaneously pump the groundwater into the original pool;

b). Single pump pumps water. With the continuous rise of the water level in the original tank, when the water level exceeds the high water level alarm signal of the original tank, the original tank water level gauge circuit module outputs the high water level alarm signal through KA3, and the normally open point of KA3 is disconnected. On, the coil of relay KM2 is powered off, and the second water pump stops pumping;

c). Pumping stops, with the further rise of the water level in the original pool, when the water level exceeds the high and high water level alarm signal of the original pool, the original pool water level gauge circuit module outputs the high water level alarm signal through KA2, and the normally open point of KA2 is disconnected Open, the coil of relay KM1 is powered off, the first water pump stops pumping, and both the first water pump and the second water pump stop pumping;

d). The clean water pool is pumped. Since the original state of the clean water pool is sewage, the low alarm signal KA8 of the water level gauge circuit module of the clean water pool is closed, and the coil of the relay KM3 is energized. The water treatment equipment is pumped into the clear water pool;

e). The clear water tank stops pumping water. As the liquid level of the clear water tank continues to rise, when the water level of the clear water tank exceeds the high water level alarm signal of the clear water tank, the high water level alarm signal KA11 of the circuit module of the clear water tank water level gauge is closed, and the relay KM4 coil is closed. Power on, the normally closed point of KM4 is disconnected, the coil of relay KM3 is powered off, and the purification pump stops pumping water.

Claims (2)

1. A control method of a raw water pool control system is characterized in that the raw water pool control system comprises a raw water pool (1), a clean water pool (2), water treatment equipment (3), a first water pump (4), a second water pump (5), a power supply circuit and a control circuit, wherein the first water pump and the second water pump are used for pumping underground water to the raw water pool, and a raw water pool water level gauge (7) and a clean water pool water level gauge (8) for measuring water levels are respectively arranged in the raw water pool and the clean water pool; a purification water pump (6) is arranged on a pipeline between the purification water pump and the water treatment equipment, the purification water pump is used for pumping water in the raw water pool to the water treatment equipment, a water outlet of the water treatment equipment is communicated with a clean water pool through the pipeline, and a fire-fighting water pump (12) and a living water pump (13) are arranged on a water outlet pipe of the clean water pool; the power supply circuit comprises a three-phase power supply (14) and a single-phase power supply (22), the three-phase power supply supplies power to the first water pump, the second water pump and the purified water pump sequentially through a circuit breaker (16) and a water pump frequency converter (15), and the single-phase power supply is used for supplying power to the control circuit;

the control circuit comprises a raw water tank water level gauge circuit module (17), a clean water tank water level gauge circuit module (18), a raw water tank wireless control transmitting module (19), a first water pump wireless control receiving module (20) and a second water pump wireless control receiving module (21), wherein the raw water tank water level gauge circuit module is provided with a relay KA2, a relay KA3, a relay KA4 and a relay KA5, and the relays KA2, KA3, KA4 and KA5 respectively output a high water level alarm signal, a low water level alarm signal and a low water level alarm signal of the raw water tank; the clean water tank water level gauge circuit module is provided with a relay KA8, a relay KA9, a relay KA10 and a relay KA11, and the relays KA8, KA9, KA10 and KA11 respectively output a low water level alarm signal, a high water level alarm signal and a high water level alarm signal of the clean water tank; the wireless control transmitting module of the raw water pool is provided with a relay KA1 and a relay KA2, the wireless control receiving module of the first water pump is provided with a relay KM1 for controlling the first water pump to work, and the wireless control receiving module of the second water pump is provided with a relay KM2 for controlling the second water pump to work;

the device comprises a relay KT, a relay KM3, a water diversion electromagnetic valve YA1, wherein two ends of a normally open point of KA4 and a normally open point of KM1 which are connected in parallel are respectively connected with one end of a single-phase power supply and one end of a KA2 normally closed point, and two ends of a coil of KA4 and a coil of KM1 which are connected in parallel are respectively connected with the other end of the single-phase power supply and the other end of the KA2 normally closed point; the two ends of the normally open point of KA5 and the normally open point of KM2 which are connected in parallel are respectively connected with one end of a single-phase power supply and one end of a KA3 normally closed point, and the two ends of the coil of KA5 and the coil of KM2 which are connected in parallel are respectively connected with the other end of the single-phase power supply and the other end of the KA3 normally closed point;

the two ends of the normally open point of KA8 and the normally open point of KM3 which are connected in parallel are respectively connected with one end of a single-phase power supply and one end of a KM4 normally closed point, and the two ends of the coil of KT and the coil of KM3 which are connected in parallel are respectively connected with the other end of the single-phase power supply and the other end of the KM4 normally closed point; the normally open point of KA11, the normally open point of KT and the coil of the water diversion electromagnetic valve YA1 are connected in series in sequence, two ends of the normally open point of KA11 are respectively connected with two ends of a single-phase power supply, KM4 is connected in parallel with two ends of the normally open point of KT and the coil of the water diversion electromagnetic valve YA1 in series, and KM4 is connected in parallel with two ends of the normally open point of KT and the coil of the water diversion electromagnetic valve YA1 in series;

the control method of the raw water pool control system is realized by the following steps:

a) pumping water by a double water pump, and setting the initial state as that a raw water pool is anhydrous and a clean water pool is anhydrous; after the raw water pool control system is started, because the raw water pool is empty of water, the circuit module of the raw water pool water level meter outputs a raw water pool low water level alarm signal through the relay KA5 and outputs a raw water pool low water level alarm signal through the relay KA 4; the normally open point of the KA5 is closed, the coil of the relay KM2 is electrified, the normally open point of the KM2 is closed, and the second water pump is started; the normally open point of KA4 is closed, the coil of the relay KM1 is electrified, the normally open point of KM1 is closed, and the first water pump is started; the first water pump and the second water pump simultaneously pump the underground water into the raw water pool;

b) pumping water by a single water pump, wherein when the water level in the raw water pool rises continuously and exceeds a high-level alarm signal of the raw water pool, the circuit module of the raw water pool water level meter outputs the high-level alarm signal through KA3, a normally open point of KA3 is switched off, a coil of a relay KM2 is switched off, and the second water pump stops pumping water;

c) when the water level exceeds the high water level alarm signal of the raw water pool, the raw water pool water level meter circuit module outputs the high water level alarm signal through KA2, the normally open point of KA2 is switched off, the coil of the relay KM1 is switched off, the first water pump stops pumping water, and at the moment, the first water pump and the second water pump stop pumping water;

d) pumping water from the clean water tank, wherein the clean water tank is in a sewage original state, a low alarm signal KA8 of a clean water tank water level meter circuit module is closed, a coil of a relay KM3 is electrified, and a purified water pump is controlled to work after the relay KM3 is electrified, so that water in the raw water tank is pumped into the clean water tank through water treatment equipment;

e) when the water level of the clean water tank exceeds the high water level alarm signal of the clean water tank, the high water level alarm signal KA11 of the clean water tank water level meter circuit module is closed, the coil of the relay KM4 is electrified, the normally closed point of the KM4 is disconnected, the coil of the relay KM3 is powered off, and the water pumping of the water purifying pump is stopped.

2. The control method of the raw water pond control system according to claim 1, characterized in that: the water treatment equipment (3) is communicated with a pipeline at the water outlet end of the purified water pump (6) through a water guide pipe (9), a water guide electromagnetic valve YA1 is arranged on the water guide pipe, and a ball valve (10) is arranged on the water guide pipe in front of the water guide battery valve YA1 and the water treatment equipment (3).

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