KR100306492B1 - Low load operation device and operation method of pump - Google Patents

Abstract

The low load driving device and the driving method of the disclosed pump are related to the low load driving device and the driving method of the pump so as to have a normal pump operation in the case of having the intermittent operation method in a low load state periodically for the pump which is in operation for a long time. .

According to the present invention, water is introduced from the outside, and the reservoir is filled with a predetermined amount of water, and a level sensing means for outputting a level signal or a danger signal by sensing the level of water introduced into the reservoir for each level, and the output from the level sensing means. The controller receives the level signal or the dangerous signal to determine the driving quantity or the dangerous state of the motor and outputs the normal operation drive signal, or outputs the low load operation drive signal according to a preset cycle value, and the normal operation output from the controller or A plurality of motors operated by a low load driving drive signal and a drain pump connected to each motor, a discharge pipe for discharging water introduced into the reservoir to an external drainage passage, and pumping water introduced into the reservoir to circulate itself The discharge pipe and the discharge pipe receives the normal operation drive signal from the controller; A discharge automatic valve for automatically opening a valve locked in a pipe to discharge water, a circulation automatic valve for automatically circulating water by automatically opening a valve locked in the circulation pipe by receiving a low load operation driving signal from a controller, and outputting from a controller It consists of an alarm means for receiving a danger signal and notifying the operator of the alarm sound.

Therefore, in order to maintain normal pump operation in case of emergency, the performance of the pump is not only kept constant, but also to reduce the failure of equipment and damage of each part, and also to save energy by low load operation and to recycle the water in the tank. It has the effect of preventing rotting.

Description

Low load operation device and operation method of pump

The present invention relates to a low load operating device and a driving method of a pump.

More specifically, the low load operation device and the operation method of the pump that maintains the constant performance of the pump at all times by having the intermittent operation method in a low load state periodically to maintain a normal pump operation in the case of a long period of time. It is about.

In general, water accumulates easily in underground roadways and road tunnels in the city lower than the ground level, especially in underground roadways and road tunnels during rainy seasons and sudden heavy rains. That is, a reservoir suitable for each condition is provided in the area lower than the ground or in each reservoir which requires water.

The water reservoir is usually a constant water is accumulated, the water is suddenly blown into the reservoir tank when the water level of the reservoir rises, the sensor operates to discharge the water to the external drain through the pumping of the pump.

1 is a pump driving device for pumping water blown into a conventional reservoir.

As shown, the inlet is formed in which water is introduced from the outside, the reservoir 1 is filled with a certain amount of water level sensing means (2) for detecting the level of water introduced into the reservoir 1 for each level The sensing signal sensed for each level by the level sensor 2 is input to the controller 3.

The controller 3 determines the driving quantity of the motor 4 according to the water level introduced into the reservoir 1 and outputs a driving signal for driving the motor 4 for each motor 4. When the motor 4 receiving the drive signal is operated, the corresponding drain pump 5 connected to each motor 4 pumps.

The water introduced into the reservoir 1 by pumping the drainage pump 5 is discharged to the drainage passage 7 through the discharge pipe 6 so that only the predetermined water having a constant water level is always filled in the reservoir 1.

The water level detecting means 2 has a level in accordance with the height of the water level, and the number of driving of the motor 4 is varied according to the water level, so that the water is properly pumped according to the inflow amount of the water into the reservoir 1.

That is, if the amount of inflow flowing into the reservoir 1 is too large than the discharge discharged by one motor 4, the pumping capacity is increased while increasing the quantity of the motor 3 to always maintain a constant reference level (first level). To maintain.

The reference level (first level) is a top line that maintains a constant water level at all times. When the incoming water reaches the reference level (first level), it is detected by the first sensor 2a, and the detection signal is detected by the controller ( 3) and pumped by the operation of the motor 3.

When the water flows up to the second level due to the inflow of water, it is detected by the second sensor 2b, the detection signal is input to the controller 3, and the two motors 3 are operated. In addition, when the inflow of water continues to blow and the water reaches the third level, it is sensed by the third sensor 2c, the detection signal is input to the controller 3, and three or more motors 3 are operated.

When three or more motors 3 are operated, the water continues to blow, and when the water reaches the dangerous level, it is detected by the danger sensor 2d, the detection signal is input to the controller 3, and the controller 3 is in a dangerous state. After the determination is made, the danger signal is immediately output to the alarm means 8 and the operator is alerted by an alarm sound or an alarm indication to take emergency measures.

However, the pump device for pumping the water blown into the conventional water tank as described above, the pumping action when the water is suddenly blown by rainy season or heavy rain, etc., and does not operate at all.

In addition, a sudden increase in water is a temporary case that occurs only in certain seasons or under special conditions in which the drainage is broken. In particular, it may not be used at all once in a well-drained area around the outside of the reservoir.

In addition, sometimes the test run for the equipment check, but because the equipment must be full (full), there is a problem that the inspection is not frequently performed because too much energy loss.

Therefore, when the equipment is not used for a long time and the rain water or the dirty water is accumulated for a long time, the water not only rots, but the equipment is also corroded due to moisture, thereby damaging the expensive equipment.

In addition, when the water is suddenly blown up and the equipment is normally used for a long period of time, failures that could not be confirmed in advance occur during operation, and the water tank becomes inoperable, causing traffic congestion, injury or property damage around the water tank. There was a problem that a large accident occurred.

Therefore, an object of the present invention is to periodically have an intermittent operation method in a low load state to a pump that is operating for a long time, so that the normal pump operation in case of emergency can always maintain the performance of the pump, equipment failure or damage To provide a low load operating device and a method of operating the pump to protect from.

1 is a pump driving device for pumping water blown into a conventional reservoir,

2 is a low load pump driving apparatus of the present invention,

Figure 3 is a flow chart related to the low load operation method of the pump of the present invention.

Explanation of symbols on the main parts of the drawings

11: reservoir 12: water level detection means

12a: first sensor 12b: second sensor

12d: first hazard sensor 12e: low stage sensor

12f: 2nd hazardous sensor 12n: Nth sensor

13 controller 14 motor

15: pump 16a: discharge automatic valve

16b: discharge pipe 17: drainage

18: alarm means 19a: replenishment water automatic valve

19b: auxiliary tank 20a: automatic circulation valve

20b: circulation piping

The low load operation device of the pump according to the present invention for achieving the above object is a level signal or danger by detecting the level of water introduced into the reservoir, the water filled in a certain amount of water, and the level of water introduced into the reservoir for each level Receives the level signal or the danger signal outputted from the water level sensing means and the level sensing means for outputting the signal to determine the driving quantity or the dangerous state of the motor and outputs the normal operation driving signal, or the low load operation according to the preset period value. A controller for outputting a drive signal, a plurality of motors operated by a normal operation or a low load operation drive signal output from the controller, a drain pump connected to each motor, and draining the water introduced into the reservoir to an external drainage channel. Discharge pipes to be circulated, and circulating pipes for pumping the water introduced into the reservoir to circulate itself and flow back into the reservoir And an automatic discharge valve for receiving the normal operation driving signal from the controller to automatically open the valve locked in the discharge pipe and discharging water, and a valve locked in the circulation pipe for receiving the low load operation driving signal from the controller. It consists of a circulating automatic valve for circulating the water to open, and an alarm means for receiving a danger signal output from the controller to inform the operator of the alarm sound.

Hereinafter, with reference to the accompanying drawings, the configuration of a low load operating device and a driving method of the pump of the present invention are as follows.

Figure 2 is a low load pump driving device of the present invention.

As shown in the figure, water is introduced from the outside, the reservoir 11 is filled with a certain amount of water, and the water level sensing means for detecting the level of water introduced into the reservoir 11 for each level and outputting a level signal or a danger signal (12) and the level signal or the dangerous signal outputted from the water level detecting means 12 to determine the driving quantity or the dangerous state of the motor 14 to output the normal operation driving signal, or according to the preset period value. A controller 13 for outputting a load driving drive signal, a plurality of motors 14 and a drain pump connected to each of the motors 14, which are operated by a normal driving or low load driving drive signal output from the controller 13; 15), the discharge pipe 16b for discharging the water introduced into the reservoir 11 to the drainage channel 17 located outside, and pumps the water introduced into the reservoir 11 to circulate itself and recirculates the reservoir 11 Circulation pipe (20b) flowing into the), A discharge automatic valve 16a for automatically discharging the valve locked in the discharge pipe 16b by receiving the normal operation drive signal from the controller 13 and a low load operation drive signal from the controller 13; The automatic circulation valve 16a for automatically circulating water by automatically opening the valve immersed in the circulation pipe 20b, and the alarm means 18 for receiving a danger signal output from the controller 3 and informing the operator of the alarm sound. It is composed.

An auxiliary tank 19b is additionally mounted at the upper end of the circulation pipe 20b to be connected to the circulation pipe 20b, and an automatic supply water automatic valve signal is supplied from the controller 13 to the upper end of the auxiliary tank 19b. An input refill water automatic valve 19a is mounted to receive insufficient water when the valve is opened.

The water level detecting unit 12 detects the water level of the water flowing into the reservoir 11 for each level, and when the incoming water reaches the first level, it is detected by the first sensor 12a. Detected by the second sensor 12b, detected by the Nth sensor 12n when it reaches the Nth level, detected by the low stage sensor 2e when it reaches the low end level, It is sensed by the first hazard sensor 2d, when it reaches the second hazard level, by the second hazard sensor 2f, and each detected level signal is input to the controller 13.

That is, the level signal detected by the first sensor 12a, the second sensor 12b, or the Nth sensor 12n varies depending on the size and condition of the reservoir 11, and thus the driving quantity of the motor 14 varies. The motor drive signal of the predetermined amount is transmitted to the motor 14 by the test value.

In addition, when the level signal sensed by the low stage sensor 2e is input to the controller 13, the controller 13 outputs a feed water automatic valve signal to open the feed water automatic valve 19a to supply insufficient water to receive a reservoir. Fill the water with (11).

In addition, if the level signal detected by the first danger sensor 2d or the second danger sensor 2f is input to the controller 13, the controller 13 determines that the danger state is a warning signal 18 Immediately output the alarm and notify the operator by alarm sound or alarm indication and take first aid action.

Referring to the principle of operation of the low load operating device of the pump of the present invention configured as described above in detail.

Figure 3 is a flow chart related to the low load operation method of the pump of the present invention.

As shown, the first step is the controller 13 determines whether the low load operation mode (S1), if the determination result in the low load operation mode starts the low load operation mode (S2), the determination result is the low load operation mode If not, the operation waits in the normal operation mode (S3).

That is, the controller 13 inputs information into the controller 13 to perform the low load operation mode for each predetermined period according to a predetermined period value. In a predetermined cycle, the test operation is repeatedly performed under low load conditions every 10 to 15 days.

In the second step, when the low load operation mode is started in the first step, the motor 14 and the pump 15 are operated by the low load operation drive signal of the controller 13 (S4), and at the same time, the automatic circulation valve ( By opening 20a), water is automatically circulated through the circulation pipe 20b (S5).

The motor 14, which operates in the second step, drives only one motor and drives the motor to have a low load pumping speed of a slightly higher pumping speed value than no load, thereby reducing water consumption and reducing water consumption. Allow pumping. The plurality of motors 14 and the pumps 15 allow one test operation alternately for each cycle so that the motors 14 and the pumps 15 do not operate for a long time.

The third step determines whether the low level signal is detected while the water is circulated through the circulation pipe 20b in the second step (S6), and if the low level signal is detected as a result of the determination, the auxiliary tank 19b is replenished. Water is supplied (S7), and if the low level signal is not detected as a result of the determination, repeats from the second step.

In the fourth step, it is determined whether the low load operation mode is completed according to a predetermined cycle (S8). When the low load operation mode is completed, the operation stops the operation of the motor and the pump (S9), and the automatic circulation valve 20a is determined. In step S10, if the low load operation mode is not completed, the process is repeated from the second step.

The fifth step is to detect each sensor when the standby mode is in the normal operation mode in the first step, when the water level is increased by the water flow into the reservoir 11 is detected by the sensors (12a, 12b, 12n) (S11), The motor 14 and the pump 15 are operated (S12), and the discharge automatic valve 16a is opened to discharge water introduced through the discharge pipe 16b (S13).

The sixth step detects a danger signal in the first or second danger sensor if too much water flows or leaks and water is too little. It is determined whether the first or second danger signal is detected (S14), and when the determination result is detected, an alarm sound is generated (S16), and the worker is notified so that the operator can take emergency measures (S17).

The final seventh step is continuously detected by the corresponding sensor to determine whether the level signal is detected by the sensor (S15). If the level signal is detected as a result of the determination, the process is repeated from the fifth step. The operation of the motor 14 and the pump 15 is stopped (S18), and the discharge automatic valve 16a is returned (S19).

Therefore, the pump that is to be stopped for a long time can be intermittently low-loaded to maintain its performance during operation, and during operation, it is possible to carry out the trial run as in actual operation by performing the low-loaded operation according to the principle of similarity. That is, even in heavy rain, sufficient performance can be exhibited by the reliable operation of the pump.

The low load operation device and the operation method of the pump according to the present invention configured and acting as described above have a periodic operation with a low load state in a low load state to the pump which is in operation for a long time, so that the pump can be operated normally in case of emergency. It not only keeps the performance constant but also reduces the breakdown of equipment and damage of each part.

In addition, the water of the tank is recycled to prevent the water from rotting and has the effect of saving energy by low load operation.

Claims (5)

A water tank into which water is introduced from the outside and filled with a certain amount of water; Water level sensing means for sensing the level of water introduced into the reservoir for each level and outputting a level signal or a danger signal; A controller which receives the level signal or the danger signal output from the water level sensing means, determines the driving quantity or the dangerous state of the motor, and outputs a normal driving drive signal or outputs a low load driving drive signal according to a predetermined period value; A plurality of motors operated by normal operation or low load operation drive signals output from the controller and a drain pump connected to each motor; A discharge pipe discharging water introduced into the reservoir to an external drainage channel; A circulation pipe for pumping the water introduced into the reservoir to circulate itself and flowing back into the reservoir; A discharge automatic valve receiving the normal operation driving signal from the controller to automatically open a valve locked in the discharge pipe to discharge water; A circulation automatic valve which receives the low load operation driving signal from the controller and automatically opens the valve locked in the circulation pipe to circulate water; And Low load operating device of the pump, characterized in that the alarm means for receiving the alarm signal output from the controller to inform the operator. The method of claim 1, The upper end of the circulation pipe is connected to the circulation pipe is equipped with an auxiliary tank for filling the insufficient water, the upper end of the auxiliary tank receives the feed water automatic valve signal from the controller to automatically turn on and off the valve Low load operating device of the pump, characterized in that the automatic valve is mounted The method of claim 1, The water level detecting means is detected by the first, second or N sensor when the water flowing into the reservoir reaches the first, second or N level, the low level sensor when the water level reaches the low stage, Low load operating device of the pump, characterized in that when the first or second dangerous level is reached by the first or second hazard sensor, each sensed level signal is input to the controller The method of claim 2 or 3, The level signal sensed by the first, second or N-th sensor varies depending on the size and condition of the reservoir and outputs a motor drive signal of a predetermined amount by a test value; The level signal sensed by the low stage sensor outputs the replenishment water automatic valve signal; Low load operating device of the pump, characterized in that the level signal detected by the first or second risk sensor outputs a danger signal Determining whether the controller is in the low load operation mode, starting the low load operation mode if the low load operation mode is determined, and waiting for the normal operation mode if the controller is not in the low load operation mode; A second step in which the corresponding motor and pump are operated by the low load driving drive signal when the low load driving mode is started in the first step, and at the same time, the water is automatically circulated through the circulation pipe by opening the circulation automatic valve; A third step of determining whether a low level signal is detected while the water is circulated through the circulation pipe in the second step, and if the low level signal is detected, supplying supplemental water in the auxiliary tank; A fourth step of determining whether the low load operation mode is completed according to a preset period, and stopping the operation of the motor and the pump when the low load operation mode is completed, and returning the automatic circulation valve; When the normal operation mode standby state in the first step, each sensor detects the water surface, when the sensor detects the water, the motor and pump is operated, the automatic discharge valve is opened to discharge the water introduced through the discharge pipe A fifth step; A sixth step of determining whether the first or second danger signal is detected, and generating an alarm sound when the determination result is detected, thereby causing the operator to take emergency measures; And Each sensor judges whether the level signal is continuously detected, and if it is determined that the level signal is detected, repeats from the fifth step. If the level signal is not detected, the operation of the motor and the pump is stopped, and the automatic discharge valve The low load operation method of the pump, comprising the seventh step of returning.