KR101569196B1 - Booster pump with temperature sensor - Google Patents

Booster pump with temperature sensor Download PDF

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Publication number
KR101569196B1
KR101569196B1 KR1020150097852A KR20150097852A KR101569196B1 KR 101569196 B1 KR101569196 B1 KR 101569196B1 KR 1020150097852 A KR1020150097852 A KR 1020150097852A KR 20150097852 A KR20150097852 A KR 20150097852A KR 101569196 B1 KR101569196 B1 KR 101569196B1
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KR
South Korea
Prior art keywords
pump
temperature
temperature sensor
pipe
fluid
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KR1020150097852A
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Korean (ko)
Inventor
박갑구
이정곤
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(주)그린텍
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Priority to KR1020150097852A priority Critical patent/KR101569196B1/en
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Publication of KR101569196B1 publication Critical patent/KR101569196B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

The present invention is characterized in that each temperature sensor is installed on the suction side confluent pipe of the fluid and the discharge side of each pump, the temperature difference of the suction and discharge part is sensed and when the temperature difference exceeding the allowable range is detected, The present invention relates to a booster pump provided with a temperature sensor whose structure is improved so as to be able to stop the pump.
The booster pump equipped with the temperature sensor according to the present invention includes a plurality of pumps 100 disposed between a suction side confluent pipe 10 and a discharge side confluent pipe 20 to provide a ground output for discharging fluid to the outside A first temperature sensor 210 mounted on the suction side merging pipe 10 for measuring the temperature of the fluid flowing into the suction side merging pipe 10 and outputting a signal according to the measured temperature to the control unit 500, A second temperature sensor 220 mounted on the discharge side of the pump 100 for measuring the temperature of the fluid passing through the pump 100 and outputting a signal according to the measured temperature to the controller 500, A detachment means 300 for detachably attaching the first and second temperature sensors 210 and 220 to the intake side confluent pipe 10 and the discharge portion of the pump 100 and the first and second temperature sensors 210 and 220 The temperature difference of the fluid measured by the first and second temperature sensors 210 and 220 And a control unit (500) for outputting a control signal for detecting an abnormality of the pump (100) and stopping the operation of the pump (100) Is formed in the form of a packing having a first through hole 352 interposed between the connecting portion of the suction side confluence pipe 10 and the pump 100 and protrudes inwardly of the rim of the first through hole 352, A first packing member 350 having a first receiving portion 355 for detachably mounting the first temperature sensor 210 and a second packing member 350 disposed between the pump 100 and the check valve 60, (362), and a second packing member (365) protruding from the inside of the rim of the second through hole (362) and having a second receiving portion (365) in which the second temperature sensor (220) 360).

Figure R1020150097852

Description

BOOSTER PUMP WITH TEMPERATURE SENSOR "

The present invention relates to a booster pump having a temperature sensor. More particularly, the present invention relates to a booster pump provided with a temperature sensor at each of a suction side condensate pipe and a pump side discharge side of a fluid and detects a temperature difference between the suction and discharge units, The present invention relates to a booster pump provided with a temperature sensor having an improved structure for recognizing an abnormality of a pump to a worker and stopping the pump.

Generally, the booster pump system refers to a pump system having two or more pumps connected in parallel with each other, and refers to a pressure pump installed in the middle of a water line to increase the water supply pressure.

These booster pump systems are installed in apartments, office buildings, and residential buildings, and are used to supply water to use places.

One of the main functions of the booster pump system is to keep the pressure of the water supply constant in order to improve the usability and safety of the user in addition to the function of supplying the water.

To this end, the booster pump system uses a pressure tank or controls the drive of the pump.

The pressure tank contains air in a closed internal space, and the internal air shrinks and expands due to changes in external pressure, and acts as a buffer during operation of the pump.

The pressure tank absorbs the pressure to absorb the internal pressure as the external pressure increases, and when the external pressure decreases, the charged pressure is released as the internal volume increases.

An inverter can be used to regulate the drive of the pump, and a booster pump system using such an inverter is referred to as an inverter booster pump system.

Inverter is a voltage / frequency (V / F) control method, which adjusts the rotational speed of the pump by varying the three-phase frequency. The inverter booster pump system measures the discharge pressure by installing a pressure sensor or a pressure switch on the discharge side confluent pipe and adjusts the driving of the pump according to the measured discharge pressure to maintain the pressure constant.

 Prior art related to the conventional booster pump is disclosed in Korean Patent Registration No. 10-1511710 entitled " Booster Pump System and Control Method of Booster Pump "(Registered on Apr. 20, 2014) A plurality of pump valves connected to one of the plurality of pumps and mounted on a pipe for discharging the air in the connected pump; A first pressure sensor installed on the discharge side confluent pipe and measuring a discharge pressure which is a pressure in the discharge side confluent pipe; A plurality of inverters for regulating rotation of each of the plurality of pumps; And controlling the pump valves to be opened and closed after the pump valve is opened, determining a forward direction, which is a rotational direction of the pump in normal operation, with respect to at least one of the plurality of pumps, rotating the pump in a first rotational direction A first current flowing in an inverter for controlling the rotation of the pump and a first discharge pressure measured by the first pressure sensor, and the pump is rotated in a second rotation direction opposite to the first rotation direction The first discharge pressure, the second discharge current, the second current, and the second discharge pressure measured by the first pressure sensor while rotating the pump, rotating the pump, rotating the pump, And a control section for determining at least one of the first and second discharge pressures based on one of the first rotation direction and the second rotation direction as the forward direction of the pump All.

Conventional booster pumps are required to control the operation of the pump in relation to the temperature of the fluid. For the prior art of the booster pump, Korean Patent Registration No. 10-1446498 entitled "Control Method of Booster Pump System A control method of a booster pump system comprising a plurality of pumps each having a solenoid valve and a temperature sensor, and a pump portion and a motor portion communicated with the suction pipe, as disclosed in "(Registration Date: 2014.09.25) Sensing the operation of the pump using the presence or absence of an electrode rod installed in the suction pipe being immersed in the fluid introduced into the suction pipe; The pump is stopped and the solenoid valve is opened to discharge the air existing in the pump unit, and then the pump is driven. When the pump is operated using the electrode, Detecting a temperature of the pump using a temperature sensor provided in the pump unit and comparing the sensed temperature with the set temperature if the pump operation is not detected; In the case of the pump whose sensed temperature is equal to or higher than the set temperature, it is determined whether the pump is idle using the sensed temperature, and then the step of driving or stopping the pump is performed.

However, in the conventional booster pump, when the temperature of the fluid on the suction side differs from that on the discharge side, not only the pump efficiency is lowered but also the temperature suddenly rises when the parts inside the pump are burned out.

Korean Patent Registration No. 10-1511710 entitled " Control Method of Booster Pump System and Booster Pump "(Registration Date: April 4, 2015) Korean Patent Registration No. 10-1446498 entitled " Control Method of Booster Pump System "(Registered on January 25, 2014)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and its object is to provide a temperature sensor in each of a suction side confluent pipe and a discharge side of each pump, The present invention also provides a booster pump including a temperature sensor having an improved structure for recognizing an abnormality of a pump when a temperature difference occurs, and for stopping the pump.

According to an aspect of the present invention, there is provided an intake pipe assembly including a plurality of pumps disposed between a suction side confluent pipe and a discharge side confluent pipe to provide a ground output for discharging fluid to the outside, A first temperature sensor for measuring the temperature of the fluid flowing into the side merging pipe and outputting a signal according to the measured temperature to the control unit side; and a second temperature sensor mounted on the discharge unit side of the pump for measuring the temperature of the fluid passing through the pump, A second temperature sensor for outputting a signal corresponding to the temperature to the control unit side, detachment means for detachably attaching the first and second temperature sensors to the suction side confluent pipe and the pump discharge unit, And detects a temperature difference of the fluid measured by the first and second temperature sensors and detects an abnormality of the pump when the temperature difference is out of a predetermined allowable range, It characterized in that it includes a control unit for outputting a control signal for stopping the operation of the program.

The control unit may further include an alarm sound generator operable by the control signal to generate an alarm sound for informing the outside of the abnormality of the pump.

And a pressure gauge provided on the discharge-side confluence side to measure the pressure of the discharged fluid.

Wherein the attaching / detaching means includes first and second branch pipes formed with first and second connection holes formed to communicate with the suction side confluence pipe and the pump discharge portion side, respectively, and a second branch pipe connected to the first branch pipe, A first cap member for sealing the first connection hole; a first connecting rod formed on the lower side of the first cap member and having the first temperature sensor mounted on the end thereof; A second cap member for sealing the second connection hole of the second branch pipe and a second connecting rod formed to extend under the second cap member and equipped with the second temperature sensor at an end thereof.

In addition, the detachment means may be disposed between the connection portion of the suction side confluent pipe and the pump, and may be formed in the form of a packing having a first through hole, protruding inwardly of the rim of the first through hole, A first packing member having a first receiving portion to be inserted therein, a packing member disposed between the pump and the check valve and having a second through-hole, protruding inwardly of a rim of the second through- And a second packing member having a second receiving portion to be inserted therein.

In the present invention, a temperature sensor is disposed in each of the suction-side confluent pipe and the pump discharge unit to compare the fluid temperature in the suction side confluent pipe with the temperature of the fluid having passed through the pump. When the temperature deviation exceeds the permissible range, And it is warned by an alarm sound, and the operation of the pump is stopped, so that the failure of the pump part can be predicted early so that the low efficiency operation of the pump can be prevented.

1 is a plan view of a booster pump equipped with a temperature sensor according to the present invention;
2 is a perspective view showing an embodiment of the detachment means of the present invention.
3 is a joint state view of Fig.
4 is a perspective view showing another embodiment of the attaching / detaching means of the present invention.

1 to 3, a booster pump having a temperature sensor according to the present invention is disposed between a suction side confluent pipe 10 and a discharge side confluent pipe 20, (10) to measure the temperature of the fluid flowing into the suction side confluent pipe (10) and to output a signal corresponding to the measured temperature to the control unit The controller 500 measures the temperature of the fluid passing through the pump 100 and measures the temperature of the fluid passing through the pump 100. The first temperature sensor 210 outputs the signal to the controller 500, A detachment means 300 for detachably attaching the first and second temperature sensors 210 and 220 to the discharge side of the suction side confluent pipe 10 and the pump 100, A second temperature sensor 210, and a second temperature sensor 220, A control unit 500 for detecting a temperature difference of the fluid measured by the sensors 210 and 220 and outputting a control signal for detecting an abnormality of the pump 100 and stopping the operation of the pump 100 when the temperature difference is out of a predetermined tolerance range .

More specifically, at the end of the discharge-side confluent pipe 20, a pressure tank 50 for maintaining the pressure of the fluid at a constant level is provided in order to improve user's convenience and safety.

Further, the operation panel 400 is disposed on the front surface of the pressure tank 50.

The control unit 500 receives the signals output from the first and second temperature sensors 210 and 220 disposed in the operation panel 400 and receives the signals from the first and second temperature sensors 210 and 220, A function of stopping the operation of the pump 100 by outputting a corresponding control signal when the temperature of the fluid is compared with the temperature of the fluid passing through the pump 100, .

In addition, when the temperature deviation applied from the first and second temperature sensors 210 and 220 is out of the normal range by using the control signal before stopping the operation of the pump 100, the controller 500 outputs an alarm signal And an alarm generator 510 for outputting an alarm signal.

The discharge side confluent pipe 20 is provided with a pressure gauge 40 for measuring the pressure of the discharged fluid.

A check valve (60) is disposed between the discharge side confluent pipe (20) and the pump (100).

It is preferable that the second temperature sensor 220 is located between the front end of the check valve 60 and the pump 100. This is because when the air in the pump 100 is mixed with air and idling, The check ball can not be opened when the check valve 60 can not be operated due to the check valve 60 and the fluid temperature at the front end of the check valve 60 rises. So that the air can be mixed and the abnormalities of the check valve 60, the reverse rotation, the failure of various sensors, the abnormal setting of the control unit, and the malfunction can be quickly identified.

 The detachment means 300 of the present invention includes the first and second branch holes 315 and 335 formed to communicate with the suction side confluent pipe 10 and the discharge side confluent pipe 20 side, A first cap member 320 screwed to the first branch pipe 310 to seal the first connection hole 315 of the first branch pipe 310, A first connecting rod 325 extending to the lower side of the first branch pipe 320 and having the first temperature sensor 210 installed at an end thereof and a second connecting rod 325 screwed to the second branch pipe 330, A second cap member 340 for sealing the second connection hole 335 of the second cap member 340 and a second cap member 340 formed to extend under the second cap member 340 and having the second temperature sensor 220 mounted on the end thereof And a second connecting rod 345.

The first and second branch pipes 310 and 330 include a first branch pipe 310 protruding to the outside of the suction side confluence pipe 10 and communicating with the inside of the suction side confluent pipe 10, , And a second branch pipe (330) protruding outside the discharge side of the pump (100) and communicating with the inside of the discharge side of the pump (100) and formed with threads on the outer peripheral surface.

The first connecting rod 325 extending downward from the first cap member 320 when the first branch pipe 310 and the first cap member 320 are coupled to each other, And the first temperature sensor 210 mounted on the end of the first connecting rod 325 is disposed in the suction side confluent pipe 10 so as to pass through the first connecting hole 315 of the first connecting rod 321. [

The second connecting rod 345 extends below the second cap member 340 when the second branch pipe 330 and the second cap member 340 are coupled with each other. And a second temperature sensor 220 coupled to pass through the second connection hole 335 of the engine 330 and mounted to the end of the second connection rod 345 is disposed in the discharge portion of the pump 100 .

In the first embodiment of the present invention having such a configuration, as the first connecting rod 325 equipped with the first temperature sensor 210 is fastened to the first branch pipe 310, the first temperature sensor 210 is connected to the suction side The second connecting rod 345 is disposed inside the confluent pipe 10 and senses the temperature of the fluid passing through the suction side confluent pipe 10, converts the sensed information into an electrical signal and outputs the electrical signal to the controller 500, The second temperature sensor 220 attached to the second connecting rod 345 is disposed inside the discharging portion of the pump 100 and is connected to the second connecting pipe 345 through the pump 100 Detects the temperature of the fluid, converts the sensed information into an electrical signal, and outputs the electrical signal to the controller 500.

The control unit 500 compares the signals applied from the first and second temperature sensors 210 and 220 to calculate the temperature deviation of the fluid passing through the suction side confluent pipe 10 and the pump 100, And outputs the respective control signals to the alarm sound generating unit 510 and the pump 100 when the temperature is within the allowable temperature range.

The reason why the fluid temperature deviation occurs between the suction side confluent pipe 10 and the discharge side of the pump 100 is that the components of the pump 100 are burned out (low efficiency operation), the inflow of air into the pump, The fluid sucked into the pump 100 is heated due to the malfunction of the surrounding sensors (pressure sensor, pressure switch, and control unit mis-setting), and the heated fluid is discharged to the discharge portion side of the pump 100, The temperature of the fluid in the pipe 10 is varied.

The alarm sound generator 510 generates an alarm sound when the control signal is outputted from the controller 500, and recognizes the abnormality of the pump 100 by the operator or the user.

In addition, the pump 100 stops operation so as to minimize the component burnout of the pump 100 as the control signal of the controller 500 is applied.

Further, the control unit 500 may further include a display unit (not shown) for externally displaying the temperature deviation of the fluid on the operation panel 400. This allows the operator to readily display the digitized temperature deviation value It has the advantage of being able to identify.

4 is a view showing another embodiment of the detachment means 300 according to the present invention. The detachment means 300 of the other embodiment is disposed to be interposed between the connection portion of the suction side confluent pipe 10 and the pump 100, A first packing 351 formed in a packing shape having one through hole 352 and projecting inside the rim of the first through hole 352 and having a first receiving portion 355 into which the first temperature sensor 210 is detachably inserted, And a check valve 60 disposed between the pump 100 and the check valve 60 and formed in the form of a packing having a second through hole 362 and protruding inside the rim of the second through hole 362, And a second packing material 360 having a second accommodating portion 365 into which the temperature sensor 220 is detachably inserted.

The first and second packing materials 350 and 360 are interposed between the front and rear flange portions of the pump 100 and the discharge portions of the suction side confluent pipe 10 and the pump 100 respectively, Or the like, to perform the function of the packing material.

The first and second receiving portions 355 and 365 are formed so as to protrude in the rim of the first and second through holes 352 and 362 of the first and second packing materials 350 and 360 so as to interfere with the flow direction of the fluid. And the first and second insertion holes 355a and 365a are formed so that the two temperature sensors 210 and 220 are inserted.

The first and second packing materials 350 and 360 are connected to the suction side confluent pipe 10 and the pump 100, unlike the detachment means 300 of the above- Since it is disposed in the form of a packing between the connecting portion and the pump 100 and the check valve 60, there is no need to form a separate branch pipe, thereby reducing the processing cost and shortening the manufacturing time.

Therefore, in the present invention, a temperature sensor is disposed on the discharge side of the suction side confluent pipe 10 and the pump 100 to detect the fluid temperature in the suction side confluent pipe 10 and the fluids passing through the inside of the pump 100 The controller 100 detects an abnormality of the pump 100 and warns the abnormality of the pump 100 with an alarm sound and stops the operation of the pump 100 to predict a failure of the pump 100. As a result, And has an advantage that the low efficiency operation of the battery 100 can be prevented.

10: Suction side joining pipe 20: Discharge side joining pipe
40: pressure gauge 50: pressure tank
60: Check valve 100: Pump
210: first temperature sensor 220: second temperature sensor
300: detachment means 310: first branch
315: first connection hole 320: first cap member
325: first connecting rod 330: second branch pipe
335: second connection hole 340: second cap member
345: second connecting rod 350: first packing material
352,362: through hole 355: first receiving portion
355a: first insertion hole 360: second packing material
365: second accommodating portion 365a: second insert hole
400: Operation panel 500: Control section
510: an alarm sound generating unit

Claims (5)

And a plurality of pumps (100) disposed between the suction side confluent pipe (10) and the discharge side confluent pipe (20) and providing a ground output for discharging the fluid to the outside,
A first temperature sensor 210 mounted on the suction side merging pipe 10 for measuring the temperature of the fluid flowing into the suction side merging pipe 10 and outputting a signal according to the measured temperature to the control unit 500,
A second temperature sensor 220 mounted on the discharge side of the pump 100 for measuring the temperature of the fluid passing through the pump 100 and outputting a signal according to the measured temperature to the controller 500,
Detachment means (300) for detachably attaching the first and second temperature sensors (210, 220) to the suction side confluent pipe (10) and the discharge portion of the pump (100)
When a signal output from the first and second temperature sensors 210 and 220 is received, the temperature difference of the fluid measured by the first and second temperature sensors 210 and 220 is determined, And a control unit (500) for outputting a control signal for stopping the operation of the pump (100)
The detachment means 300 is disposed between the suction side confluent pipe 10 and the connection portion of the pump 100 and is formed in the form of a packing having a first through hole 352, A first packing material 350 protruding from the first temperature sensor 210 and having a first receiving portion 355 to which the first temperature sensor 210 is detachably inserted; And a second accommodating portion 365 which is formed in the form of a packing having a second through hole 362 and protrudes inside the rim of the second through hole 362 and into which the second temperature sensor 220 is detachably inserted And a second packing material (360) formed thereon. The method according to claim 1,
The controller 500 further includes an alarm sound generator 510 operated by the control signal to generate an alarm sound for informing the outside of the abnormality of the pump 100. [ Equipped booster pump. The method according to claim 1,
Further comprising a pressure gauge (40) provided on the side of the discharge side confluent pipe (20) for measuring a pressure of fluid discharged from the discharge side confluent pipe (20). delete delete
KR1020150097852A 2015-07-09 2015-07-09 Booster pump with temperature sensor KR101569196B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3848496A4 (en) * 2018-09-06 2022-05-18 LG Electronics Inc. Drain pump driving apparatus and laundry processing machine comprising same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177223A (en) * 2002-11-26 2004-06-24 Honda Motor Co Ltd Sensor attaching structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177223A (en) * 2002-11-26 2004-06-24 Honda Motor Co Ltd Sensor attaching structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3848496A4 (en) * 2018-09-06 2022-05-18 LG Electronics Inc. Drain pump driving apparatus and laundry processing machine comprising same

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