KR102147241B1 - Hybrid Pump System For Scrubber Of Ship - Google Patents

Abstract

Disclosed is a hybrid pump system for a scrubber of a ship. According to an embodiment of the present invention, the hybrid pump system comprises: a scrubber which cleans exhaust gas discharged from an engine of a ship; a water treatment unit which recovers a cleaning fluid sprayed to the scrubber to remove pollutants; a first pump which introduces seawater into the ship, transfers the seawater to a heat exchanger, and discharges the seawater to the outside of the ship; a second pump which supplies the cleaning fluid to the scrubber, transfers the recovered cleaning fluid to the heat exchanger side through the water treatment unit, and resupplies the cleaning fluid cooled by the heat exchanger to the scrubber side; a preliminary pump mounted on the same pipe line as that of the first pump and the second pump to perform the role of the first pump or the role of the second pump by a control signal of the control unit; and the control unit which stops, when one of the first pump and the second pump makes a malfunction, the operation of the pump, which has made the malfunction, and operates the preliminary pump as the substitute. The hybrid pump system for the scrubber of the ship includes a configuration to more effectively use the pumps.

Description

Hybrid Pump System For Scrubber Of Ship {Hybrid Pump System For Scrubber Of Ship}

The present invention relates to a hybrid pump system, and more particularly, to a hybrid pump system for a marine scrubber.

In general, the cleaning fluid provided to the marine scrubber must be kept cooled within a certain temperature range, and the cleaning fluid recovered after being supplied to the scrubber is cooled using seawater.

1 is a schematic diagram showing a cooling pump system having an open loop structure according to the prior art.

In some cases, as shown in FIG. 1, the seawater is absorbed from the outside of the ship and the absorbed seawater is directly provided to the scrubber, and then recovered and discharged to the outside of the ship.

2 is a schematic diagram showing a cooling pump system having a closed loop structure according to the prior art.

The cooling pump system shown in FIG. 2 absorbs seawater from the outside of the ship and uses it for cooling the cleaning fluid, and then discharges it to the outside of the ship.

In the case of the pump system according to the prior art shown in FIGS. 1 and 2, a pump having a total capacity of 150% compared to the required capacity must be included in accordance with related laws.

That is, after inhaling seawater from the outside of the ship, a pump provided to the scrubber and a preliminary pump therefor are additionally required, and a pump providing a flow of the cleaning fluid provided to the scrubber and a preliminary pump therefor are additionally required.

Accordingly, as shown in FIG. 2, three pumps having a capacity characteristic of 50% of the total capacity must be installed in each loop to meet 150% of the total capacity.

As a result, in the case of a pump system according to the prior art, it is necessary to secure a large number of pumps, and accordingly, there is a problem that an expensive cost is required in configuring the pump system.

Therefore, there is a need for a technology capable of solving the problems according to the prior art mentioned above.

Korean Patent Registration No. 10-1173694 (registered on August 07, 2012)

It is an object of the present invention to provide a hybrid pump system for a marine scrubber including a configuration capable of more effectively using the pump of a pump system mounted in a ship.

A hybrid pump system according to an aspect of the present invention for achieving this object is a scrubber that performs a cleaning role for exhaust gas discharged from a ship's engine, and a scrubber that recovers the cleaning fluid injected into the scrubber to remove pollutants. A pump system including a water treatment unit, comprising: a first pump for introducing seawater into a vessel, transferring it to a heat exchanger, and discharging it to the outside of the vessel; A second pump for supplying the cleaning fluid to the scrubber, transferring the recovered cleaning fluid to the heat exchanger side through the water treatment unit, and resupplying the cleaning fluid cooled by the heat exchanger to the scrubber side; A preliminary pump mounted on the same piping line as the first pump and the second pump and performing a role of a first pump or a second pump according to a control signal from a control unit; And a control unit that stops the operation of the malfunctioning pump and replaces it with a spare pump when any one of the first pump and the second pump malfunctions.

In an embodiment of the present invention, the hybrid pump system includes: a seawater inlet pipe for introducing seawater from outside the ship; A seawater transfer pipe for transferring the seawater introduced through the seawater inlet pipe to a heat exchanger by a first pump; And a seawater discharge pipe for discharging the seawater passing through the heat exchanger to the outside of the ship, wherein the seawater inlet pipe, the seawater transfer pipe, and the seawater discharge pipe may form an open loop structure.

In an embodiment of the present invention, the hybrid pump system includes: a fluid transfer pipe for transferring the cleaning fluid cooled from the heat exchanger to a second pump; A fluid supply pipe for supplying the cleaning fluid provided through the fluid delivery pipe to the scrubber by a second pump; A fluid recovery pipe for recovering the cleaning fluid sprayed on the scrubber and transferring it to a water treatment unit; And a fluid resupply pipe for transferring the cleaning fluid from which the pollutants have been removed by the water treatment unit to the heat exchanger, wherein the fluid transfer pipe, the fluid supply pipe, the fluid recovery pipe and the fluid resupply pipe are closed loops. loop) structure can be formed.

In this case, the hybrid pump system may further include a fluid discharge pipe for discharging the cleaning fluid from which the pollutants are removed by the water treatment unit to the outside of the ship.

In addition, the fluid discharge pipe may be equipped with a discharge control valve capable of opening the fluid discharge pipe to discharge the cleaning fluid to the outside of the ship by a control signal from the controller.

In an embodiment of the present invention, the first pump, the second pump, and the preliminary pump may be disposed in parallel structures in pipes communicating with each other.

In this case, a flow control valve for changing a flow direction of seawater or a cleaning fluid according to a control signal from a control unit may be installed in each of the parallel pipes communicating with each other.

In an embodiment of the present invention, the hybrid pump system includes: a seawater temperature sensor mounted on a seawater inlet pipe for introducing seawater from outside a ship, detecting a temperature of the incoming seawater, and transmitting the detected temperature data to the control unit; And a first fluid temperature sensor that is mounted on a pipe through which the cleaning fluid passing through the water treatment unit flows to the heat exchanger, and detects the temperature of the water-treated cleaning fluid and transmits the detected temperature data to the control unit; I can.

In this case, the controller may control a supply rate and a supply flow rate of seawater delivered to the heat exchanger based on temperature data acquired from the seawater temperature sensor and the first fluid temperature sensor.

In one embodiment of the present invention, the hybrid pump system is installed in a pipe through which the cleaning fluid passing through the heat exchanger flows to the second pump, and detected by detecting the temperature of the cleaning fluid cooled through the heat exchanger. A second fluid temperature sensor for transmitting temperature data to the controller may be configured to further include.

In this case, the controller may control a supply rate and a supply flow rate of seawater transmitted to the heat exchanger based on temperature data obtained from the seawater temperature sensor, the first fluid temperature sensor, and the second fluid temperature sensor.

In one embodiment of the present invention, the spare pump is a pump having the same capacity as the first pump or the second pump, and the hybrid pump system may be configured to include two spare pumps.

As described above, according to the hybrid pump system of the present invention, by providing a first pump, a second pump, a spare pump, and a control unit that perform a specific role, the pump of the pump system mounted in the ship can be used more effectively. It is possible to provide a hybrid pump system for a marine scrubber including the configuration.

In addition, according to the present invention, a seawater inlet pipe, a seawater delivery pipe, and a seawater discharge pipe that perform a specific role are formed in a specific open loop structure, and at the same time, a fluid delivery pipe, a fluid supply pipe, and a fluid recovery pipe performing a specific role. And by forming the fluid resupply piping in a specific closed loop structure, it is possible to provide a hybrid pump system capable of simultaneously performing an open loop structure and a closed loop structure.

In addition, according to the present invention, by providing a seawater temperature sensor, a first fluid temperature sensor, a second fluid temperature sensor and a control unit to play a specific role, the temperature obtained from the seawater temperature sensor, the first fluid temperature sensor, and the second fluid temperature sensor It is possible to control the supply rate and supply flow rate of seawater delivered to the heat exchanger based on the data, and as a result, it is possible to effectively operate a hybrid pump system for a marine scrubber with only a limited number of pumps.

1 is a block diagram showing a pump system having an open loop structure according to the prior art.
2 is a block diagram showing a pump system having a closed loop structure according to the prior art.
3 is a block diagram showing a hybrid pump system according to an embodiment of the present invention.
FIG. 4 is a schematic diagram showing a state in which seawater is introduced into the vessel through the open loop structure of the hybrid pump system shown in FIG. 3 and is discharged to the outside of the vessel after performing heat exchange.
5 is a schematic diagram showing a state in which a cleaning fluid flows through a closed loop structure of the hybrid pump system shown in FIG. 3.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to a conventional or dictionary meaning, but should be interpreted as meanings and concepts consistent with the technical idea of the present invention.

Throughout this specification, when a member is said to be positioned "on" another member, this includes not only the case where the member is in contact with the other member, but also the case where another member exists between the two members. Throughout this specification, when a certain part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

3 is a block diagram showing a hybrid pump system according to an embodiment of the present invention, and in FIG. 4, seawater is introduced into the vessel through the open loop structure of the hybrid pump system shown in FIG. 3 and heat exchange is performed. A schematic diagram showing the discharge to the outside of the ship is shown, and FIG. 5 is a schematic diagram showing the flow of the cleaning fluid through the closed loop structure of the hybrid pump system shown in FIG. 3.

Referring to these drawings, the pump system 100 according to the present embodiment recovers the scrubber 150 that performs a cleaning role for the exhaust gas discharged from the engine of the ship and the cleaning fluid injected to the scrubber 150 A configuration including a water treatment unit 160 that removes contaminants by providing a first pump 110, a second pump 120, a preliminary pump 130, and a control unit that perform a specific role, thereby being mounted in a ship. It is possible to provide a hybrid pump system for a marine scrubber that includes a configuration that can more effectively use the pump of the pump system.

Hereinafter, with reference to the drawings, each component constituting the hybrid pump system 100 according to the present embodiment will be described in detail.

The first pump 110 according to the present embodiment serves to introduce seawater into the vessel, deliver it to the heat exchanger 140, and discharge it to the outside of the vessel.

The second pump 120 supplies the cleaning fluid to the scrubber 150, and then delivers the recovered cleaning fluid to the heat exchanger 140 side through the water treatment unit 160, and then to the heat exchanger 140. It serves to re-supply the cleaning fluid cooled by the scrubber 150 side.

In addition, the preliminary pump 130 is mounted on the same piping line as the first pump 110 and the second pump 120, and serves as the first pump 110 or the second pump by a control signal from the controller. Perform the role of 120. Preferably, as shown in FIG. 3, the spare pump 130 is a pump equal to the capacity of the first pump 110 or the second pump 120, and the hybrid pump system 100 according to the present embodiment is It may be a configuration including two spare pumps (130).

At this time, the control unit (not shown) according to the present embodiment, if any one of the first pump 110 and the second pump 120 causes a malfunction, after stopping the operation of the malfunctioning pump, the spare pump ( 130) can be replaced.

Referring to FIG. 3, the hybrid pump system 100 according to the present embodiment is a configuration including an open loop structure and a closed loop structure at the same time, and heat exchange after introducing seawater from the outside of the ship. The process of discharging seawater to the outside of the ship after use in the vessel uses an open loop structure, and the process of supplying the cleaning fluid to the scrubber uses a closed loop structure.

Specifically, the open loop structure transfers the seawater introduced through the seawater inlet pipe 171 and the seawater inlet pipe 171 for introducing seawater from the outside of the ship to the heat exchanger 140 by the first pump 110. It is a configuration including a seawater delivery pipe 172, and a seawater discharge pipe 173 for discharging the seawater passing through the heat exchanger 140 to the outside of the ship. At this time, the seawater inlet pipe 171, the seawater delivery pipe 172, and the seawater discharge pipe 173 form an open loop structure, as shown in FIG. 4.

The closed rope structure includes a fluid delivery pipe 174 for delivering the cleaning fluid cooled from the heat exchanger 140 to the second pump 120, and the cleaning fluid provided through the fluid delivery pipe 174 to the second pump ( A fluid supply pipe 175 supplied to the scrubber 150 by 120, a fluid recovery pipe 176 that recovers the cleaning fluid sprayed on the scrubber 150 and delivers it to the water treatment unit 160, and a water treatment unit ( The configuration includes a fluid resupply pipe 177 for transferring the cleaning fluid from which the pollutants are removed by 160 to the heat exchanger 140. At this time, as shown in FIG. 5, the fluid delivery pipe 174, the fluid supply pipe 175, the fluid recovery pipe 176, and the fluid resupply pipe 177 form a closed loop structure.

Preferably, a fluid discharge pipe 178 for discharging the cleaning fluid from which the pollutants are removed by the water treatment unit 160 to the outside of the ship may be further mounted, at this time, in the fluid discharge pipe 178, FIG. 3 And as shown in FIG. 4, a discharge control valve 181 capable of opening the fluid discharge pipe 178 to discharge the cleaning fluid to the outside of the ship by a control signal from the control unit may be mounted.

Meanwhile, as shown in FIG. 3, it is preferable that the first pump 110, the second pump 120, and the preliminary pump 130 are disposed in a parallel structure in a pipe communicating with each other.

At this time, a flow control valve 182 for changing a flow direction of seawater or a cleaning fluid according to a control signal from a control unit may be mounted on each of the parallel pipes communicating with each other.

When the operation of the flow control valve 182 installed in each pipe is controlled by the above-mentioned control unit (not shown), the flow direction of seawater flowing by the open loop structure and the flow cleaning by the closed loop structure It is possible to control the flow direction of the solvent fluid.

In some cases, as shown in FIG. 3, the seawater temperature sensor 190 may be mounted on the seawater inlet pipe 171 for introducing seawater from the outside of the ship. In this case, the seawater temperature sensor 190 may detect the temperature of the incoming seawater and transmit the detected temperature data to the controller. In addition, after mounting the first fluid temperature sensor 191 in a pipe through which the cleaning fluid that has passed through the water treatment unit 160 flows to the heat exchanger 140, the temperature detected by detecting the temperature of the water-treated cleaning fluid Data can be transmitted to the control unit.

At this time, the control unit (not shown) controls the supply rate and supply flow rate of seawater transmitted to the heat exchanger 140 based on the temperature data obtained from the seawater temperature sensor 190 and the first fluid temperature sensor 191 can do.

As shown in FIG. 3, a second fluid temperature sensor 192 may be further mounted on a pipe through which the cleaning fluid passing through the heat exchanger 140 flows to the second pump 120. In this case, the temperature of the cleaning fluid cooled through the heat exchanger 140 may be detected and the detected temperature data may be transmitted to the controller.

At this time, the control unit (not shown) is transmitted to the heat exchanger 140 based on the temperature data obtained from the seawater temperature sensor 190, the first fluid temperature sensor 191, and the second fluid temperature sensor 192. Seawater supply speed and supply flow rate can be controlled.

As described above, according to the hybrid pump system of the present invention, by providing a first pump, a second pump, a spare pump, and a control unit that perform a specific role, the pump of the pump system mounted in the ship can be used more effectively. It is possible to provide a hybrid pump system for a marine scrubber including the configuration.

In addition, according to the present invention, a seawater inlet pipe, a seawater delivery pipe, and a seawater discharge pipe that perform a specific role are formed in a specific open loop structure, and at the same time, a fluid delivery pipe, a fluid supply pipe, and a fluid recovery pipe performing a specific role. And by forming the fluid resupply piping in a specific closed loop structure, it is possible to provide a hybrid pump system capable of simultaneously performing an open loop structure and a closed loop structure.

In addition, according to the present invention, by providing a seawater temperature sensor, a first fluid temperature sensor, a second fluid temperature sensor and a control unit to play a specific role, the temperature obtained from the seawater temperature sensor, the first fluid temperature sensor, and the second fluid temperature sensor It is possible to control the supply rate and supply flow rate of seawater delivered to the heat exchanger based on the data, and as a result, it is possible to effectively operate a hybrid pump system for a marine scrubber with only a limited number of pumps.

In the above detailed description of the present invention, only special embodiments according thereto have been described. However, it should be understood that the present invention is not limited to a particular form mentioned in the detailed description, but rather, it is understood to include all modifications, equivalents, and substitutes within the spirit and scope of the present invention as defined by the appended claims. Should be.

1: seawater inlet
2: seawater outlet
3: pump
4: scrubber
5: pump
6: water treatment device
7. Heat Exchanger
10: Pump system with open loop structure according to the prior art
20: Pump system with a closed structure according to the prior art
100: hybrid pump system
101: seawater inlet
102: seawater outlet
110: first pump
120: second pump
130: spare pump
140: heat exchanger
150: scrubber
160: water treatment unit
171: seawater inlet pipe
172: seawater delivery pipe
173: seawater discharge pipe
174: fluid delivery pipe
175: fluid supply pipe
176: fluid recovery pipe
177: fluid resupply piping
178: fluid discharge pipe
181: discharge control valve
182: flow control valve
190: seawater temperature sensor
191: first fluid temperature sensor
192: second fluid temperature sensor

Claims (12)

Pump system 100 including a scrubber 150 that performs a cleaning role for exhaust gas discharged from the engine of a ship, and a water treatment unit 160 that recovers the cleaning fluid sprayed on the scrubber 150 to remove pollutants ) As,
A first pump 110 for introducing seawater into the vessel, transferring it to the heat exchanger 140, and discharging it to the outside of the vessel;
After supplying the cleaning fluid to the scrubber 150, the recovered cleaning fluid is transferred to the heat exchanger 140 side through the water treatment unit 160, and the cleaning fluid cooled by the heat exchanger 140 is transferred to the scrubber. A second pump 120 resupplied to the 150 side;
It is mounted on the same piping line as the first pump 110 and the second pump 120, and performs the role of the first pump 110 or the second pump 120 by a control signal from the controller. Spare pump 130; And
If any one of the first pump 110 and the second pump 120 causes a malfunction, a control unit for replacing the operation of the preliminary pump 130 after stopping the operation of the malfunctioning pump;
Hybrid pump system comprising a.
The method of claim 1,
The hybrid pump system 100,
Seawater inlet pipe 171 for introducing seawater from outside the ship;
A seawater delivery pipe 172 for delivering the seawater introduced through the seawater inlet pipe 171 to the heat exchanger 140 by the first pump 110; And
A seawater discharge pipe 173 for discharging the seawater passing through the heat exchanger 140 to the outside of the ship;
Including,
The seawater inlet pipe (171), the seawater delivery pipe (172) and the seawater discharge pipe (173) are hybrid pump system, characterized in that to form an open loop (open loop) structure.
The method of claim 1,
The hybrid pump system 100,
A fluid delivery pipe (174) for delivering the cleaning fluid cooled from the heat exchanger (140) to the second pump (120);
A fluid supply pipe 175 for supplying the cleaning fluid provided through the fluid delivery pipe 174 to the scrubber 150 by the second pump 120;
A fluid recovery pipe 176 for recovering the cleaning fluid sprayed on the scrubber 150 and transferring it to the water treatment unit 160; And
A fluid resupply pipe 177 for transferring the cleaning fluid from which the pollutants are removed by the water treatment unit 160 to the heat exchanger 140;
Including,
The fluid delivery pipe (174), the fluid supply pipe (175), the fluid recovery pipe (176) and the fluid resupply pipe (177) is a hybrid pump system, characterized in that to form a closed loop (closed loop) structure.
The method of claim 3,
The hybrid pump system 100,
A fluid discharge pipe 178 for discharging the cleaning fluid from which pollutants are removed by the water treatment unit 160 to the outside of the ship;
Hybrid pump system, characterized in that it further comprises.
The method of claim 4,
A hybrid pump, characterized in that the fluid discharge pipe 178 is equipped with a discharge control valve 181 capable of opening the fluid discharge pipe 178 to discharge the cleaning fluid to the outside of the ship by a control signal from the control unit. system.
The method of claim 1,
The first pump (110), the second pump (120), and the preliminary pump (130) is a hybrid pump system, characterized in that arranged in a parallel structure in a pipe communicating with each other.
The method of claim 6,
A hybrid pump system, wherein a flow control valve (182) for changing a flow direction of seawater or a cleaning fluid is mounted on each of the parallel pipes communicating with each other.
The method of claim 1,
The hybrid pump system 100,
A seawater temperature sensor 190 mounted on the seawater inlet pipe 171 for introducing seawater from the outside of the ship, detecting the temperature of the incoming seawater and transmitting the detected temperature data to the control unit; And
A first fluid temperature sensor that is mounted on a pipe through which the cleaning fluid that has passed through the water treatment unit 160 flows to the heat exchanger 140, detects the temperature of the water-treated cleaning fluid, and transmits the detected temperature data to the control unit (191);
Hybrid pump system, characterized in that it further comprises.
The method of claim 8,
The control unit is characterized in that to control the supply rate and supply flow rate of seawater delivered to the heat exchanger 140 based on the temperature data obtained from the seawater temperature sensor 190 and the first fluid temperature sensor 191 Hybrid pump system.
The method of claim 8,
The hybrid pump system 100,
The cleaning fluid that has passed through the heat exchanger 140 is mounted on a pipe flowing to the second pump 120 and detects the temperature of the cleaning fluid cooled through the heat exchanger 140 and controls the detected temperature data A second fluid temperature sensor 192 that transmits to;
Hybrid pump system, characterized in that it further comprises.
The method of claim 10,
The control unit includes a supply speed of seawater transmitted to the heat exchanger 140 based on temperature data obtained from the seawater temperature sensor 190, the first fluid temperature sensor 191, and the second fluid temperature sensor 192, and Hybrid pump system, characterized in that to control the supply flow rate.
The method of claim 1,
The preliminary pump 130 is a pump equal to the capacity of the first pump 110 or the second pump 120,
The hybrid pump system (100), characterized in that it comprises two spare pumps (130).

Images