WO2022065322A1

WO2022065322A1 - Management device managing vacuum vaporization-type fresh water generation device

Info

Publication number: WO2022065322A1
Application number: PCT/JP2021/034662
Authority: WO
Inventors: 充志池田; 高穂竹内
Original assignee: 株式会社ササクラ
Priority date: 2020-09-25
Filing date: 2021-09-21
Publication date: 2022-03-31
Also published as: CN115955998A; TW202212268A; JPWO2022065322A1; KR20230074705A

Abstract

A management device 100 manages a vacuum vaporization-type fresh water generation device 1 producing fresh water from seawater, and comprises: an operating condition acquisition unit 110 that acquires information relating to an operating condition of the vacuum vaporization-type fresh water generation device 1; and an abnormality detection unit 120 that detects an abnormality in the vacuum vaporization-type fresh water generation device 1 on the basis of the information acquired by the operating condition acquisition unit 110.

Description

Management equipment that manages vacuum evaporation type water production equipment

The present invention relates to a management device, a management method, and a management program for managing a vacuum evaporation type water production device that produces fresh water from seawater.

Conventionally, in ships operating on the sea, a vacuum evaporation type water brewing device that produces fresh water by evaporating seawater pumped from the sea under high vacuum has been used. As a vacuum evaporation type water production device, a type that uses steam from a boiler mounted on a ship or waste heat from a diesel engine or the like as a heat source is widely used (for example, Patent Document 1). In this type of vacuum evaporation type desalination device, the inside is generally depressurized by a heater that heats and evaporates the supplied raw seawater by heat exchange with hot water used for cooling a diesel engine, etc., and a decompression means. It is equipped with a closed-type container body that is held in a vacuum) state and condenses the generated steam to desalinate it. A condenser having a plurality of heat transfer tubes is built in the container body, and the steam is cooled and condensed by heat exchange with the cooling seawater flowing inside the heat transfer tubes to make it fresh water. In addition, a part of the cooling seawater discharged from the condenser is supplied to the heater as raw seawater.

Jitsukaisho 62-43692

Currently, the operation adjustment of the vacuum evaporation type water brewing device is performed by the crew of the ship, and the troubleshooting is also performed by the crew etc. based on the instruction manual of the vacuum evaporation type water brewing device. However, in recent years, due to labor saving in the engine room and technical deterioration of the crew, it is not possible to solve the trouble on its own, and it is becoming more frequent for outsiders of the ship (for example, the support desk of the equipment manufacturer) to ask low-difficulty questions. It has become.

The present invention has been made to solve the above problems, and an object of the present invention is to support the solution of troubles related to a vacuum evaporation type water production apparatus.

The object of the present invention is a management device for managing a vacuum evaporation type water brewing device for producing fresh water from seawater, and an operation state acquisition unit for acquiring information on an operation state of the vacuum evaporation type water brewing device, and the above-mentioned. This is achieved by a management device including an abnormality detection unit that detects an abnormality in the vacuum evaporation type water production device based on the information acquired by the operation state acquisition unit.

In a preferred embodiment of the present invention, the vacuum evaporation type water brewing device further includes a control unit that controls the vacuum evaporation type water making device so that the abnormality is eliminated when the abnormality is detected. It is characterized by that.

In a preferred embodiment of the present invention, the vacuum evaporation type water brewing device presents a method for eliminating the abnormality to the user of the vacuum evaporation type water brewing device when the abnormality is detected. It is characterized by further preparing.

In this embodiment, the anomaly may be a lack of freshwater production.

In this embodiment, the abnormality may be an excessive salt concentration of the fresh water.

In this embodiment, the abnormality may be adhesion of scale contained in the seawater into the vacuum evaporation type water brewing device.

In this embodiment, the abnormality may be a deficiency in the amount of fresh water produced due to a deficiency in the heating capacity of the heater.

In the above embodiment, the vacuum evaporation type water brewing device has a heater that heats raw seawater with jacket cooling water that cools the internal combustion engine of a ship to generate steam, and a heater that generates steam by cooling the steam generated by the heater. It may be provided with a condenser that is cooled by a steamer to generate fresh water.

In this embodiment, when the cause of the abnormality is a shortage of the jacket cooling water, it is preferable that the control unit controls or presents the user so that the amount of water increases.

In this embodiment, when the cause of the abnormality is that the temperature of the jacket cooling water is lower than the specified value, the presenting unit presents the user to raise the temperature to the specified value or more. It is preferable to do so.

In this embodiment, when the cause of the abnormality is contamination of the heater by the jacket cooling water or adhesion of scale contained in the seawater to the heater, the presenting unit supplies the hot water. It is preferable to present the user to perform an operation of cleaning the line or suppressing the adhesion of the scale.

In this embodiment, the abnormality may be a deficiency in the amount of fresh water produced due to a deficiency in the cooling capacity of the condenser.

In this embodiment, when the secondary factor of the abnormality is insufficient supply of the cooling seawater to the vacuum evaporation type water production device, the control unit determines the supply amount of the cooling seawater. It is preferred to control or present to the user to increase.

In this embodiment, the vacuum evaporation type water making apparatus is
A plurality of heat transfer tubes are provided inside, and a condenser that cools the steam supplied into the condenser to generate fresh water is further provided.
When the cause of the abnormality is dirt in the heat transfer tube or adhesion of scale contained in the seawater to the heat transfer tube.
It is preferable that the presenting unit presents the user to clean the heat transfer tube.

In this embodiment, the anomaly may be a vacuum drop in the condenser.

In this embodiment, the vacuum evaporation type water generator includes a condenser having a plurality of heat transfer tubes inside and cooling the steam supplied into the condenser to generate fresh water, and the condenser. A water ejector that supplies the cooling seawater to the condenser and keeps the inside of the condenser in a vacuum state is further provided, and the cause of the abnormality may be a malfunction of the water ejector.

In this embodiment, the secondary factor of the abnormality is that the opening degree of the flow rate adjusting valve for adjusting the flow rate of the seawater supplied to the water ejector is insufficient, so that the driving water pressure of the water ejector is predetermined. If it is less than the value,
The control unit preferably controls the opening degree of the flow rate adjusting valve.

In this embodiment, the secondary factor of the abnormality is that the pressure in the cooling seawater discharge line for discharging the cooling seawater from the condenser to the outside of the ship is higher than a predetermined value. The presenting unit presents to the user that the cooling seawater discharge line is clogged or the opening degree of the cooling water outlet valve provided in the cooling seawater discharge line is confirmed, or the control unit presents the cooling water. It is preferable to adjust the opening degree of the outlet valve.

In this embodiment, when the secondary factor of the abnormality is that the pressure of the cooling seawater supplied from the water ejector is a negative pressure, the presenting unit restores the cooling seawater. It is preferable to present the user to throttle the cooling water outlet valve provided in the cooling seawater discharge line for discharging the water from the condenser to the outside of the ship, or the control unit adjusts the opening degree of the cooling water outlet valve. ..

In this embodiment, when the secondary factor of the abnormality is that the nozzle or radiation cylinder of the water ejector is corroded or worn, the presenting unit replaces the nozzle or radiation cylinder with a new one. It is preferable to present to the user what to do.

In this embodiment, the secondary factor of the abnormality is that the brine check valve provided in the brine discharge line for discharging the raw material seawater remaining after the steam is generated to the water ejector is fixed. In certain cases, it is preferred that the presenter presents the user to open check or clean the brine check valve or replace the brine check valve with a new one.

In this embodiment, when the secondary factor of the abnormality is that the nozzle of the water ejector is clogged with a foreign substance, the presenting unit may present the user to clean the nozzle. preferable.

In this embodiment, the secondary factor of the anomaly is that the bleed line for sending the non-condensable gas in the condenser to the water ejector is closed, or the vacuum regulating valve provided in the bleed line. May be closed.

In this embodiment, when a further factor of the secondary factor is that the check valve is stuck, the presenter performs an open check or cleaning of the check valve, or the reverse. It is preferred to indicate to the user that the check valve should be replaced with a new one.

In this embodiment, when a further factor of the secondary factor is that the opening degree of the vacuum regulating valve is insufficient, the presenting unit adjusts the vacuum regulating valve in the opening direction. It is preferable to present it to the user.

In this embodiment, when the secondary factor of the abnormality is that there is an air leak point from the condenser, the presenting unit performs an air test at a predetermined atmospheric pressure to identify and identify the leak point. It is preferable to present the user to repair.

In this embodiment, when the secondary factor of the abnormality is a failure of the pressure gauge for measuring the degree of vacuum in the vacuum state, the user is presented with the replacement of the pressure gauge with a new one. Is preferable.

In this embodiment, when the abnormality is an excessive salt concentration of the fresh water due to an excessive amount of fresh water produced, the control unit controls the water production amount to be equal to or less than the rated water production amount. Is preferable.

In this embodiment, the vacuum evaporation type water generator includes a condenser having a plurality of heat transfer tubes inside and cooling the steam supplied into the condenser to generate fresh water, and the condenser. A water ejector that keeps the inside of the condenser in a vacuum state is further provided, and the abnormality is due to an excessive salt concentration of the fresh water due to the temperature of the raw material seawater being lower than a predetermined value. In certain cases, the control unit throttles the vacuum regulating valve provided in the extraction line for sending the non-condensable gas in the condenser to the water ejector, or breaks the vacuum to break the vacuum state. It is preferable to control the opening degree of the valve.

In this embodiment, when the abnormality is an excessive salt concentration of the fresh water due to a change in the jacket cooling water or seawater inlet temperature, the presenting unit reduces the jacket cooling amount and temporarily lowers the water production amount. It is preferable to present to the user that the operation is not performed or the operating conditions are not changed suddenly.

In this embodiment, when the abnormality is the adhesion of the scale due to the excessive amount of fresh water produced, the control unit may control the amount of water produced to be equal to or less than the rated amount of water produced. preferable.

In this embodiment, when the abnormality is the adhesion of the scale due to the non-execution of the cool-down when the operation of the vacuum evaporation type water production apparatus is stopped, the control unit stops the supply of hot water when the operation is stopped. After that, it is preferable to operate only the cooling water system for a predetermined time or longer and control the heater to be cooled.

In this embodiment, the heater is connected to a hot water introduction pipe and a hot water discharge pipe for introducing and discharging the jacket cooling water, respectively, and the abnormality is the hot water introduction pipe or the hot water discharge pipe. In the case of adhesion of the scale due to leakage from the hot water inlet / outlet valve in the above, it is preferable that the presenting unit presents the user to confirm / maintain or replace the opening degree of the hot water inlet / outlet valve.

The above object of the present invention is a management method for managing a vacuum evaporation type water brewing device for producing fresh water from seawater, and includes an operation state acquisition step for acquiring information on an operation state of the vacuum evaporation type water brewing device, and the above-mentioned. It is achieved by a management method including an abnormality detection step of detecting an abnormality of the vacuum evaporation type water production apparatus based on the information acquired in the operation state acquisition step.

The above object of the present invention is a management program for operating a computer as a management device for managing a vacuum evaporative water brewing device that produces fresh water from seawater, and provides information on an operating state of the vacuum evaporative water brewing device. By a management program for operating the computer as an operation state acquisition unit to be acquired and an abnormality detection unit for detecting an abnormality in the vacuum evaporation type water production device based on the information acquired by the operation state acquisition unit. Achieved.

According to the present invention, it is possible to support the solution of troubles related to the vacuum evaporation type water making apparatus.

It is a block diagram of the water production system which concerns on one Embodiment of this invention. It is a schematic block diagram of the water making apparatus which concerns on one Embodiment of this invention. It is sectional drawing which shows the internal structure of the water making apparatus shown in FIG. It is a flowchart which shows the operation of a management device. It is a figure which shows the factor corresponding to the insufficient water production amount among the main events which can occur in a water making apparatus, and the processing of a control part corresponding to each factor, and the presentation content of a presentation part. It is a figure which shows the factor corresponding to the insufficient water production amount among the main events which can occur in a water making apparatus, and the processing of a control part corresponding to each factor, and the presentation content of a presentation part. It is a figure which shows the factor corresponding to the excessive salt concentration of fresh water among the main events which can occur in a water making apparatus, and the processing of the control part corresponding to each factor, and the presentation content of a presentation part. It is a figure which shows the factor corresponding to scale adhesion among the main events which can occur in a water making apparatus, and the processing of a control part corresponding to each factor, and the presentation content of a presentation part. It is a schematic block diagram of the water making apparatus which concerns on a modification.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the following embodiments.

FIG. 1 is a block diagram of a water production system according to an embodiment of the present invention. The water production system includes a vacuum evaporation type water production device (hereinafter referred to as "water production device") 1 and a management device 100 for managing the water production device 1.

[Configuration of water production equipment]
FIG. 2 is a schematic configuration diagram of the water production device 1, and FIG. 3 is a cross-sectional view showing the internal configuration of the water production device 1.

The water making device 1 includes a heater 2 and a condenser 3 having a steam separating means 4, a condenser 5, and a preheater 6. In FIG. 3, reference numeral P1 is an ejector pump for pumping seawater from the sea, and the seawater pumped by the ejector pump P1 (omitted in FIG. 2) is attached to the condenser 3 through the seawater line 8. After being supplied to the water ejector 7, it is supplied to the condenser 5 as cooling water for water production by the water production device 1. The water ejector 7 constitutes a decompression means for keeping the inside of the condenser 3 in a depressurized (vacuum) state. The seawater line 8 includes a temperature detector 90 for detecting the temperature of the seawater, a seawater pressure gauge 64 for measuring the water pressure of the seawater, a strainer 58 for filtering the seawater, and a strainer 58 for adjusting the flow rate of the seawater. A flow rate adjusting valve 99 is provided.

The heater 2 includes a cylindrical upper pipe 20 and a lower pipe 21 arranged vertically, and a plurality of heating pipes 22 provided in the upper pipe 20. The upper pipe 20 and the lower pipe 21 are connected and fixed by tightening bolts 27A and nuts 27B. The plurality of heating tubes 22 are arranged so as to extend in the upper tube 20 in the vertical direction, and both ends thereof are fixed to the upper wall surface and the lower wall surface of the upper tube 20. The lower pipe 21 is provided with a raw material seawater introduction port 23, and the raw material seawater is introduced into each heating pipe 22 from the raw material seawater supply line 24 into the lower pipe 21. A cylindrical hot water introduction pipe 25 and a hot water discharge pipe 26 are vertically connected to the side wall surface of the upper pipe 20. Hot water such as jacket cooling water used for cooling the diesel engine 70 is introduced from the hot water introduction pipe 25 into the upper pipe 20 through the hot water supply line 71. The raw material seawater introduced into each heating pipe 22 is heated and evaporated by heat exchange with the hot water introduced into the upper pipe 20 from the hot water introduction pipe 25, and is supplied to the condenser 3 as steam. The hot water in the upper pipe 20 that has been heat-exchanged with the raw seawater is sent from the hot water discharge pipe 26 to the jacket water cooler 73 through the hot water discharge line 72.

The hot water supply line 71 is provided with a hot water inlet valve 80 and a flow rate adjusting three-way valve 81, and the hot water discharge line 72 is provided with a hot water outlet valve 82 and a temperature detector 65. The hot water supply line 71 and the hot water discharge line 72 are connected via

connection lines

74 and 75, and the connection line 75 is provided with a flow rate adjusting valve 83. The flow rate adjusting three-way valve 81 can adjust the flow rates of both the hot water supply line 71 and the connection line 74. Further, the hot water supply line 71 is provided with a flow meter 91 for detecting the flow rate of the hot water and a temperature detector 92 for detecting the temperature of the hot water.

The condenser 3 includes a cylindrical casing 30 having a diameter larger than that of the upper pipe 20 and the lower pipe 21 of the heater 2, and the upper pipe 20 of the heater 2 has a bolt 28A and a nut 28B at the lower end of the casing 30. It is connected and fixed by tightening. As described above, the heater 2 is detachably supported by the condenser 3 in a suspended state, and the inside of the casing 30 is a steam flow path through which steam supplied from the heater 2 flows. A cylindrical horizontal pipe 31 forming the outer shell of the condenser 5 and the preheater 6 is provided above the casing 30 so as to penetrate the casing 30. A first header 32 and a second header 33 are connected to both ends of the horizontal pipe 31, respectively.

At the bottom of the casing 30, a steam separating means 4 for capturing droplets from steam is provided. In the present embodiment, the brackish water separating means 4 is composed of a brackish water separating plate 40 and a mesh separator 41 in which fine meshes formed by fine filaments are laminated in multiple layers. An opening 34 for introducing steam into the horizontal pipe 31 is formed in the central portion of the upper end of the horizontal pipe 31 in the casing 30. Inside the air-water separation means 4, a pressure gauge 68 for measuring the steam pressure, a steam thermometer 94 for measuring the steam temperature, and a level sensor 98 for measuring the brine level are provided. Has been done. Further, an intake port 49 is provided on the side surface of the air-water separation means 4, and the intake port 49 is connected to a vacuum break valve 59 for breaking the vacuum state.

The condenser 5 is for cooling the steam supplied into the condenser 3 to generate fresh water, and is provided with a plurality of heat transfer tubes 50 inside. Each heat transfer tube 50 is arranged so as to extend in the horizontal direction, and both ends thereof are fixed to the left wall surface and the right wall surface of the horizontal tube 31 and communicate with the inside of both the first and

second headers

32 and 33. ing. Above the heat transfer tube 50 constituting the condenser 5, a plurality of heat transfer tubes 60 constituting the preheater 6 are provided. The plurality of heat transfer tubes 60 are also arranged so as to extend in the horizontal direction, and both ends thereof are fixed to the left wall surface and the right wall surface of the horizontal tube 31, and the inside of both the first and

second headers

32 and 33. Communicate.

The insides of both the first and

second headers

32 and 33 are divided into upper

preheating header chambers

32B and 33B and lower

condensation header chambers

32A and 32B by

partition plates

35 and 36, respectively. The condensing header 32A of the first header 32 is provided with a cooling water inlet 37 for introducing cooling seawater for cooling and condensing steam. A water ejector 7 is connected to the cooling water inlet 37 via a cooling water line 54, and seawater from the ejector pump P1 is introduced as cooling water. The cooling water line 54 is provided with a temperature detector 66 for detecting the temperature of the cooling water and a pressure gauge 67 for detecting the pressure of the cooling water. When the cooling seawater introduced into the condensation header 32A of the first header 32 flows in each heat transfer tube 50 toward the condensation header 33A of the other second header 33, it is supplied into the horizontal tube 31. The steam is condensed by being cooled by heat exchange with the cooling seawater. The fresh water generated by the condensation is taken out from the fresh water delivery line 52 via the fresh water outlet 38 provided at the lower end of the horizontal pipe 31, and is sent to the fresh water tank (not shown) by the fresh water pump P2 (omitted in FIG. 2). Sent. The freshwater delivery line 52 includes a salinity meter 79 for measuring the salt concentration of freshwater, a freshwater liquid level switch 88 for detecting the liquid level of freshwater, and a flow meter 95 for measuring the flow rate of freshwater. , A flow rate adjusting valve 62 for adjusting the flow rate of fresh water is provided. The condensation header 33A of the second header 33 is provided with a cooling water outlet 39 for discharging the cooling seawater from each heat transfer tube 50, and the cooling seawater discharged from the cooling water outlet 39 is, for example, cooled. It is discharged to the outside of the ship through the seawater discharge line 51. The cooling seawater discharge line 51 includes a temperature detector 53 for measuring the temperature of the cooling seawater, a drainage pressure gauge 55 for measuring the water pressure of the cooling seawater, and a flow rate of the cooling seawater for adjusting the flow rate. The cooling water outlet valve 56 is provided.

The partition plate 36 of the second header is provided with a raw material seawater inlet 45 for introducing a part of the cooling seawater discharged from the condenser 5. A part of the cooling seawater discharged from the condenser 5 is introduced into the preheating header chamber 33B of the second header 33 via the raw material seawater inlet 45. Then, it flows through each heat transfer tube 60 constituting the preheater 6 toward the preheating header chamber 32B of the other first header 32. At this time, the cooling seawater is heated by heat exchange with the steam supplied in the horizontal pipe 31 when flowing in each heat transfer tube 60. The preheating header chamber 32B of the first header 32 is provided with a raw material seawater outlet 29 for discharging cooling seawater. The cooling seawater discharged from the raw material seawater outlet 29 is supplied as raw material seawater into the lower pipe 21 of the heater 2 via the raw material seawater supply line 24. The raw material seawater supply line 24 includes a water supply adjusting valve 61 for adjusting the flow rate of the cooling seawater, a water supply pressure gauge 69 for measuring the water pressure of the cooling seawater, and a water supply pressure gauge 69 for adjusting the flow rate of the cooling seawater. A water supply orifice 57 and a condenser air vent valve 44 for discharging the air mixed in the preheater 6 are provided.

A gas vent 42 is provided at the upper end of the horizontal pipe 31 outside the casing 30, and a brine outlet 43 is provided at the lower end of the casing 30. The degassing port 42 is connected to the water ejector 7 via the bleeding line 46, and the non-condensable gas inside the horizontal pipe 31 is sucked by the water ejector 7, and the pressure inside the horizontal pipe 31 and the casing 30 is atmospheric pressure. By being held in a lower depressurized (vacuum) state, the raw seawater is evaporated and condensed in the horizontal tube 31 and the casing 30 in the depressurized (vacuum) state. The degree of vacuum in the vacuum state is measured by a pressure gauge 68 connected to the condenser 3. The flow rate of the bleed air line 46 can be adjusted by the vacuum adjusting valve (flow rate adjusting valve) 84. Further, the brine outlet 43 is connected to the water ejector 7 via the brine discharge line 48, and the brine (seawater) after evaporation in the casing 30 is sucked from the brine outlet 43 by the water ejector 7 and then the ship. It is discharged to the outside. The brine check valve 63 is provided on the brine discharge line 48.

[Management device configuration]
The management device 100 shown in FIG. 1 is connected to the water production device 1 in a communicable manner by wire or wirelessly. In the present embodiment, the management device 100 is provided inside the ship, but may be provided outside the ship (for example, on land). Further, the management device 100 may be configured by a general-purpose computer or a dedicated computer such as a control panel. Alternatively, the management device 100 can be integrally configured with the water production device 1.

As shown in FIG. 1, the management device 100 includes an operation state acquisition unit 110, an abnormality detection unit 120, and a troubleshooting unit 130. Each part of the operation state acquisition unit 110, the abnormality detection unit 120, and the troubleshooting unit 130 may be realized by hardware by a logic circuit or the like, or may be realized by software by using a CPU or the like. When each part is realized by software, each part can be realized by reading the management program stored in the storage device of the management device 100 into the main storage device and executing the management program. The management program may be downloaded to the management device 100 via a communication network such as the Internet, or the management program may be recorded on a computer-readable non-temporary recording medium such as a CD-ROM and stored. It may be installed in the management device 100 via a medium.

The operating state acquisition unit 110 acquires information regarding the operating state of the water making apparatus 1 (operating state acquisition process). In the present embodiment, the operation state acquisition unit 110 includes a temperature detector 90, a temperature detector 66, a flow meter 91, a temperature detector 92, a temperature detector 65, a pressure gauge 68, and a steam thermometer 94 of the water production device 1. Each detection value from the flow meter 95, the salt concentration meter 79, the water supply pressure meter 69, the seawater pressure meter 64, the temperature detector 53, the level sensor 98 and the drainage pressure meter 55 is acquired as the above information.

The abnormality detection unit 120 detects an abnormality in the water production device 1 based on the information regarding the operation state of the water production device 1 acquired by the operation state acquisition unit 110. Each detected value included in the above information has a normal range. When at least one of the detected values is out of the range, the abnormality detecting unit 120 determines that an abnormality has occurred in the water production apparatus 1 and identifies the content (event) and the cause of the abnormality. When the cause can be identified, the abnormality detection unit 120 inputs the information of the identified event and the factor to the troubleshooting unit 130. If the cause cannot be identified, the abnormality detection unit 120 inputs information to the effect that the identified event and the cause are unknown to the troubleshooting unit 130.

The troubleshooting unit 130 is a functional block for resolving the abnormality when the abnormality is detected by the abnormality detecting unit 120. In order to realize this function, the troubleshooting unit 130 includes a control unit 131 and a presentation unit 132.

When an abnormality is detected by the abnormality detection unit 120, the control unit 131 controls the water production device 1 so that the abnormality is eliminated. The abnormality targeted by the control unit 131 is limited to the abnormality that can be automatically resolved without human intervention.

When an abnormality is detected by the abnormality detection unit 120, the presentation unit 132 presents to the user of the water production apparatus 1 a method for eliminating the abnormality. The mode to be presented to the user is not particularly limited, and may be displayed on a display or may be guided by voice. Alternatively, information for resolving the abnormality may be output to another device (for example, an operation panel of a ship) by wire or wirelessly. The abnormality targeted by the presentation unit 132 is not particularly limited, but may be limited to an abnormality that cannot be automatically resolved. In the present embodiment, the control unit 131 operates when an abnormality that can be automatically resolved is detected, and the presentation unit 132 operates when an abnormality that cannot be automatically resolved is detected.

[Troubleshooting overview]
FIG. 4 is a flowchart showing the operation of the management device 100. In the management device 100, the operation state acquisition unit 110 continuously acquires information on the operation state of the water production device 1 (operation state acquisition step S1), and the abnormality detection unit 120 is acquired by the operation state acquisition unit 110. The abnormality of the water making apparatus 1 is detected based on the information (abnormality detection step S2). When an abnormality is actually detected (YES in step S3), the troubleshooting unit 130 determines whether the detected abnormality is an abnormality that can be automatically resolved (step S4). When the detected abnormality is an abnormality that can be automatically resolved (YES in step S4), the control unit 131 controls the water production device 1 so that the abnormality is eliminated (step 5). As a result, when the abnormality can be resolved (YES in step 6), the process returns to step 2. If the detected abnormality is not an abnormality that can be automatically resolved (NO in step S4), or if the abnormality cannot be resolved by the control unit 131 (NO in step 6), the presentation unit 132 resolves the abnormality. A method for doing so is presented to the user (step 7).

[Specific examples of troubleshooting]
5 to 8 show the main events that can occur in the water production apparatus, the factors corresponding to the events, and the processing of the control unit and the presentation contents of the presentation unit corresponding to each factor.

The main events that can occur in water production equipment are roughly divided.
1) Insufficient water production (Figs. 5 and 6)
2) High freshwater salinity (Fig. 7)
3) Scale adhesion (Fig. 8)
There is. In the present embodiment, the "water production amount" means the production amount of fresh water produced by the water production device 1 per unit time. The freshwater salinity is set as a rated value according to the performance required for the water making apparatus 1. Further, the scale is a component such as calcium sulfate contained in seawater, which is precipitated by evaporation of seawater and easily adheres to a heating tube 22 or the like.

(Event 1)
First, the processing when the event 1 (insufficient water production amount) shown in FIGS. 5 and 6 is detected will be described. As a subordinate event corresponding to event 1,
11) Decreased heating capacity (Fig. 5)
12) Insufficient cooling capacity (Fig. 5)
13) Vacuum drop in the condenser 3 (Fig. 6)
There is.
As a primary factor (factor 1) of subordinate event 11 (decrease in heating capacity),
A) Insufficient amount of hot water B) Hot water temperature is lower than the specified value C) There is dirt and scale adhesion in the hot water supply line. Factor A is identified by the detection value of the flow meter 91, the temperature detector 92 or the temperature detector 65, and factor B is identified by the detection value of the temperature detector 92. Factor C is the detection value of the flow meter 91, the detection value of the temperature detector 92, the detection value of the flow meter 95 (water production amount), the detection value of the temperature detector 53, the detection value of the temperature detector 65, and the temperature detector 66. Identified by at least one of the detected values of.

When factor A is identified, the control unit 131 operates to increase the hot water flow rate by adjusting at least one of the hot water inlet valve 80, the flow rate adjusting three-way valve 81, the hot water outlet valve 82, and the flow rate adjusting valve 83. Let me. If the event is not resolved by this, the presentation unit 132 is activated to present to the user that the hot water flow rate is increased.

When the factor B is specified, the presentation unit 132 operates to present to the user that the hot water temperature is raised to a specified value or more. When the factor C is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
-Wash the hot water supply line 71-Present the user to perform an operation to suppress scale adhesion.

As a primary factor of subordinate event 12 (insufficient cooling capacity),
D) Poor discharge of fresh water E) Insufficient amount of cooling water F) High cooling water temperature G) Dirt in the heat transfer tube 50 of the condenser 5 and scale adhesion H) Poor air discharge in the heat transfer tube 50 of the condenser 5 be.

As a secondary factor (factor 2) of factor D,
D1) The flow control valve 62 of the freshwater delivery line 52 is closed D2) The pump P2 is out of order D3) The piping of the freshwater delivery line 52 is clogged D4) The pump P2 is sucking air. These factors D1 to D4 are specified not only by the detected value (water production amount) of the flow meter 95 and the detected value of the freshwater liquid level switch 88, but also by the freshwater discharge pressure and the switch of the freshwater pump.

When the factors D1 to D4 are specified, the presentation unit 132 operates in each case. The presentation unit 132 presents to factor D1 that the valve of the freshwater delivery line 52 should be opened, to factor D2 that the pump P2 should be repaired, and to factor D3 that freshwater should be repaired. It is suggested that the piping of the delivery line 52 be inspected and cleaned, and that the pump P2 should be adjusted for the factor D4.

As a secondary factor (factor 2) of factor E,
E1) Malfunction of water ejector 7 E2) The amount of cooling water (seawater for cooling) supplied to the water making device 1 is small. The factor E1 is due to the failure of the water ejector 7 itself, and the factor E2 is due to the defect of the ejector pump P1 and other pipes. These factors E1 and E2 are specified by the detection value (ejector inlet pressure) of the seawater pressure gauge 64 and the detection value of the pressure gauge 67. When the factor E1 is specified, the control unit 131 or the presentation unit 132 performs a process corresponding to the factor J (FIG. 6) described later. When the factor E2 is specified, the control unit 131 operates and controls so as to increase the amount of cooling water. If this does not resolve the event, the presentation unit 132 is activated and
-Increase the amount of cooling water-Tell the user to check the pump and piping system.

Factor F is specified by the detection value of the temperature detector 90. Factor G is the detection value of the seawater pressure gauge 64 (ejector inlet pressure), the detection value of the flow meter 95 (water production amount), the detection value of the temperature detector 53, the detection value of the temperature detector 66, and the detection of the steam thermometer 94. Specified by at least one of the values. When the factor F is specified, the presenting unit 132 operates to present to the user that the cooling water temperature is lowered. When the factor G is specified, the presentation unit 132 is activated to indicate to the user that the heat transfer tube 50 of the condenser 5 is to be cleaned.

The factor H is specified by at least one of the detection values of the temperature detector 53, the temperature detector 66, the pressure gauge 68, the seawater pressure gauge 64, and the flow meter 95. When the factor H is identified, the presentation unit 132 operates to indicate to the user that the vacuum adjusting valve 84 should be inspected, cleaned, or replaced.

As shown in FIG. 6, as a primary factor of the lower event 13 (vacuum drop),
J) Malfunction of water ejector 7 K) There is an air leak point L) Failure of pressure gauge 68 M) Insufficient amount of cooling water N) Breakage of heating pipe 22 P) Excessive amount of water supply.

As a secondary factor of factor J,
J1) The driving water pressure of the water ejector 7 is less than the predetermined value J2) The back pressure is higher than the predetermined value J3) The pressure of the drainage pressure gauge 55 / the pressure of the pressure gauge 67 is negative J4) The nozzle of the water ejector 7 Or the radiation tube is corroded and worn J5) The brine check valve 63 is stuck J6) The nozzle of the water ejector 7 is clogged with foreign matter J7) The extraction line 46 or the vacuum adjustment valve 84 is closed. be. The "back pressure" means the pressure in the cooling seawater discharge line 51.

When factor J1 is identified, the tertiary factor (factor 3) of factor J1 is
J11) Ejector pump P1 is out of order J12) Piping pressure loss is excessive J13) The opening of the flow control valve 99 is insufficient. Factors J11 and J13 are specified by the inlet pressure of the ejector pump P1. When the factor J11 is identified, the presentation unit 132 is activated to indicate to the user that the ejector pump P1 should be repaired. When the factor J13 is specified, the control unit 131 operates to control the opening degree of the flow rate adjusting valve 99. If the event is not resolved by this, the presenting unit 132 operates and presents to the user that the opening degree of the flow rate adjusting valve 99 is adjusted. The factor J12 cannot be specified automatically, but if the factors J11 and J13 are not specified, the possibility of the factor J12 is high. Therefore, the presentation unit 132 presents the factor J12 as a promising candidate, and also presents the user to review the pipe diameter, the type of valve, and the like so as to reduce the pressure loss.

Factor J2 is specified by the detected value of the pressure gauge 67. When the factor J2 is specified, the control unit 131 operates to adjust the opening degree of the cooling water outlet valve 56 provided in the cooling seawater discharge line 51. If the event is not resolved by this, the presenting unit 132 is activated to check the clogging of the cooling seawater discharge line 51 or the opening degree of the cooling water outlet valve 56 provided in the cooling seawater discharge line 51. Present to.

Factor J3 is specified by the detected values of the drainage pressure gauge 55 and the pressure gauge 67. When the factor J3 is specified, the control unit 131 operates to adjust the opening degree of the cooling water outlet valve 56. If the event is not resolved by this, the presentation unit 132 is activated to indicate to the user that the cooling water outlet valve 56 is slightly throttled.

Factor J4 is specified by the inlet pressure of the ejector pump P1. When the factor J4 is specified, the presentation unit 132 is activated to indicate to the user that the nozzle or the radiation tube should be replaced with a new one.

Factors J5 to J7 are identified by the inlet pressure of the ejector pump P1 and the evaporation temperature or pressure of the raw seawater measured by the pressure gauge 68, the steam thermometer 94, and the level sensor 98. When the factor J5 is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
-Open check or clean the brine check valve-Instruct the user to replace the brine check valve with a new one if necessary.

When the factor J6 is specified, the presentation unit 132 operates to indicate to the user that the nozzle should be cleaned.

When factor J7 is identified, the tertiary factor of factor J7 is
J71) The check valve of the bleed air line 46 is fixed. J72) The opening degree of the vacuum adjusting valve 84 is insufficient. When the factor J71 is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
・ Open check and clean the check valve ・ Show the user to replace the check valve if necessary. When the factor J72 is specified, the presenting unit 132 is activated to present to the user that the vacuum adjusting valve 84 is adjusted in the opening direction.

The factor K is also specified by the inlet pressure of the ejector pump P1 and the evaporation temperature or evaporation pressure of the raw material seawater measured by the steam thermometer 94 and the pressure gauge 68, similarly to the factors J5 to J7. When the factor K is specified, the presentation unit 132 operates, performs an air test at a predetermined atmospheric pressure (for example, 0.05 MPa), and presents the user to identify and repair the leaked part.

When the factor L is specified, the presentation unit 132 operates to indicate to the user that the pressure gauge 68 should be replaced with a new one.

When the factor M is specified, the control unit 131 or the presentation unit 132 operates in the same manner as when the factor E is specified.

When the factor N is specified, the presentation unit 132 operates, identifies the hole / loosened part, and presents the user to replace (temporarily plug) the corresponding pipe.

When the factor P is identified, the secondary factor of the factor P is
P1) The opening degree of the water supply adjusting valve 61 is excessive. P2) The water supply orifice 57 is worn. P3) The water supply pressure is high. Factors P1 and P3 are specified by the pressure of the water supply orifice 57. When the factor P1 is specified, the control unit 131 operates to control the opening degree of the water supply adjusting valve 61. If the event is not resolved by this, the presentation unit 132 is activated to indicate to the user that the opening degree of the water supply adjusting valve 61 is reduced. When the factor P3 is identified, the control unit 131 is activated and
-The opening degree of the water supply adjusting valve 61 is narrowed down.-The opening degree of the cooling water outlet valve 56 of the cooling seawater discharge line 51 is controlled to be increased. If this does not resolve the event, the presentation unit 132 is activated and
-The opening degree of the water supply adjusting valve 61 is narrowed down.-The user is presented with an increase in the opening degree of the cooling water outlet valve 56 of the cooling seawater discharge line 51.

The factor P2 cannot be specified automatically, but if the factors P1 and P3 are not specified, the possibility of the factor P2 is high. Therefore, the presentation unit 132 presents the factor P2 as a promising candidate and presents the user to replace the water supply orifice 57 with a new one.

(Event 2)
Subsequently, the processing when the event 2 (high freshwater salt concentration) shown in FIG. 7 is detected will be described. As a subordinate event corresponding to event 2,
21) Over-water production (excessive water production)
22) Evaporation temperature is low (seawater temperature is low)
23) Poor brine discharge 24) There is a problem with the mesh separator 41 25) Damage to the air / water separation plate 40 26) Breakage of the heat transfer tube 50 of the condenser 5 (loose expansion)
27) Fluctuations in operating conditions 28) There is dirt in the raw seawater. Although the salt detector is not shown, it is provided on the freshwater delivery line 52.

Subordinate event 21 (overproduction) is detected by the detection value (water production amount) of the flow meter 95. When the subordinate event 21 is detected, the control unit 131 operates to control the water production device 1 so that the water production amount is equal to or less than the rated water production amount. If the event is not resolved by this, the presentation unit 132 operates to indicate to the user that the operation is performed at the rated water production amount or less.

The lower event 22 (low evaporation temperature) is detected by the detection value of the flow meter 95 (the amount of water produced) and the detection value of the steam thermometer 94. When the subordinate event 22 is detected, the control unit 131 is activated and the control unit 131 is activated.
-The vacuum control valve 84 is throttled.-At least one of the control is performed to raise the evaporation temperature by slightly opening the vacuum break valve 59. If this does not resolve the event, the presentation unit 132 is activated and
-The vacuum control valve 84 is throttled.-The user is presented with a slight opening of the vacuum break valve 59 to raise the evaporation temperature.

As a factor of subordinate event 23 (poor brine discharge),
Q) Malfunction of water ejector 7 R) There is an excessive amount of water supply. When the factor Q is specified, the control unit 131 or the presentation unit 132 performs a process corresponding to the above-mentioned factor J (FIG. 6). When the factor R is specified, the control unit 131 or the presentation unit 132 performs a process corresponding to the above-mentioned factor P (FIG. 6).

As a factor of the lower event 24 (there is a problem with the mesh separator 41),
S) Salt is deposited and fixed. T) There is a gap between the casing 30 and the body.

When the factor S is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
-Inspect and clean the mesh separator 41 to remove salt-Instruct the user to replace the mesh separator 41 with a new one.

When the factor T is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
・ Install so that there is no gap. ・ If the gap is not filled, indicate to the user that the casing 30 should be replaced with a new one.

When the lower event 25 is detected, the presentation unit 132 operates to indicate to the user that the steam separation plate 40 should be replaced with a new one.

The lower event 26 (break hole (loose expansion portion) of the heat transfer tube 50 of the condenser 5) is detected by the detection values of the drainage pressure gauge 55 and the water supply pressure gauge 69. When the subordinate event 26 is detected, the presentation unit 132 operates to indicate to the user that the hole / loosened portion is specified and the corresponding pipe is replaced (temporarily plugged).

The subordinate event 27 (variation in operating conditions) is detected by at least one of the detection values of the seawater pressure gauge 64, the temperature detector 65, the temperature detector 90, the flow meter 91, and the temperature detector 92. When the subordinate event 27 is detected, the presentation unit 132 is activated and the presentation unit 132 is activated.
-Reduce the amount of hot water and temporarily operate with a low amount of water production-Indicate to the user that the operating conditions will not be changed suddenly.

The subordinate event 28 (dirt of raw seawater) is the detection value of the flow meter 91, the detection value of the temperature detector 92, the detection value of the flow meter 95 (water production amount), the detection value of the temperature detector 53, and the detection value of the temperature detector 65. It is detected by at least one of the detection value and the detection value of the temperature detector 66. When the subordinate event 28 is detected, the presentation unit 132 is activated to indicate to the user that driving in a harbor, estuary, or contaminated sea area should be avoided.

(Event 3)
Subsequently, the processing when the event 3 (scale adhesion) shown in FIG. 8 is detected will be described. In the present embodiment, "adhesion" to be treated means that an amount of scale that interferes with the operation of the water making apparatus 1 adheres. As a subordinate event corresponding to event 3,
31) Insufficient water supply 32) Over-production 33) Scale inhibitor not injected 34) Cool-down not performed when operation is stopped 35) Leakage from hot water introduction pipe 25 or hot water discharge pipe 26 (when water production device 1 is stopped)
36) There is a high temperature of hot water.

As a factor of subordinate event 31 (insufficient water supply),
U) Insufficient opening of the water supply regulating valve 61 V) Clogged water supply orifice 57 W) Failure of the water supply pressure gauge 69 X) There is insufficient pressure in the heat transfer tube 50 of the condenser 5.

Factor U is specified by the detected value of the water supply pressure gauge 69. When the factor U is specified, the control unit 131 operates, the water supply adjusting valve 61 is opened, and the water supply pressure is controlled to be within the green mark (for example, 0.04 to 0.06 MPa). If the event is not resolved by this, the presentation unit 132 is activated to indicate to the user that the water supply pressure is within the green mark.

When the factor V is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
-Inspect and clean the water supply orifice 57-Present the user to inspect and clean the strainer 58 of the seawater line 8.

When the factor W is specified, the presentation unit 132 is activated and the presentation unit 132 is activated.
-Bleed the air and check the indicated value.-Instruct the user to replace the water supply pressure gauge 69 with a new one.

Factor X is specified by the detected value of the drainage pressure gauge 55. When the factor X is specified, the control unit 131 operates, the cooling water outlet valve 56 is throttled, and the water supply pressure is controlled to be within the green mark (for example, 0.04 to 0.06 MPa). If the event is not resolved by this, the presentation unit 132 is activated to indicate to the user that the water supply pressure is within the green mark.

If the user cannot resolve the event with respect to the factors U and X, it is highly possible that the factor V or W is the factor of the subordinate event 31.

The subordinate event 32 (overproduction) is detected by the detection value (water production amount) of the flow meter 95. When the subordinate event 32 is detected, the control unit 131 operates to control the operation so that the operation is performed at the rated water production amount or less.

Subordinate event 33 (scale inhibitor not injected) is detected by a drug injection tank level sensor (not shown). When the subordinate event 33 is detected, the presentation unit 132 is activated to indicate to the user that the specified amount is to be injected according to the instruction manual of the drug solution to be used.

The lower event 34 (cool-down not performed when the operation is stopped) is detected by the detection value of the temperature detector 65, the flow meter 91, or the temperature detector 92. When the subordinate event 34 is detected, the control unit 131 operates, and when the operation is stopped, after the hot water supply is stopped, only the cooling water system is operated for a predetermined time (for example, 30 minutes) or more to cool the heater 2. To control. If the event is not resolved by this, the presenting unit 132 operates, and after the hot water supply is stopped, only the cooling water system is operated for a predetermined time or more to present to the user that the heater 2 is cooled.

The subordinate event 35 (leakage from the hot water inlet valve 80 or the hot water outlet valve 82) is detected by the detection value of the temperature detector 92 (hot water inlet temperature) and the detection value of the temperature detector 65 (hot water outlet temperature). When the subordinate event 35 is detected, the presentation unit 132 is activated to indicate to the user that the hot water inlet / outlet valve is to be maintained or replaced.

The subordinate event 36 (hot water temperature is high) is detected by the detection value (hot water inlet temperature) of the temperature detector 92. When the subordinate event 36 is detected, the presentation unit 132 is activated and the presentation unit 132 is activated.
・ Adjust the hot water temperature below the planned value ・ Increase the amount of water supply (for example, increase the water supply pressure to 0.06MPa)
-Provide users to increase the amount of scale inhibitor injection.

[Summary]
As described above, the management device 100 according to the present embodiment is built based on the operation state acquisition unit 110 that acquires information on the operation state of the water production device 1 and the information acquired by the operation state acquisition unit 110. It is provided with an abnormality detection unit 120 for detecting an abnormality in the water device 1. As a result, the crew of the ship can grasp the abnormality of the water making device 1 at an early stage, so that it is possible to deal with it with a margin before the actual trouble occurs in the operation, and it is possible to support the solution of the trouble. can.

Further, the management device 100 further includes a control unit 131 that controls the water production device 1 so that the abnormality is eliminated when an abnormality is detected. As a result, the trouble can be solved regardless of the coping ability of the crew or the like.

Further, the management device 100 further includes a presentation unit 132 that presents a method for resolving the abnormality to the user of the water making device 1 when an abnormality is detected. As a result, the crew and the like can solve the trouble by themselves without relying on the outsider of the ship. In addition, it is possible to grasp the parts that need maintenance or replacement.

[Modification example]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

In the above embodiment, the water production device 1 uses waste heat from a diesel engine or the like as a heat source, but the type of the water production device 1 is not particularly limited. The present invention can also be applied to, for example, a water production device of a method using steam (steam injector method).

FIG. 9 is a schematic configuration diagram of a steam injector type water production device 1'. In FIG. 9, the members having the same functions as those in the water making apparatus 1 shown in FIG. 2 are designated by the same reference numerals. In the water making device 1 shown in FIG. 2, the jacket cooling water is introduced into the heater 2, but in the water making device 1'shown in FIG. 9, steam is introduced into the heater 2. Therefore, the water production device 1'includes a steam injector 76, a steam supply line 77, and a steam discharge line 78. The steam introduction line 86 for introducing steam into the steam injector 76 is provided with a flow control valve 96 and a steam pressure gauge 97, and the steam discharge line 78 is provided with a steam drain discharge line 87. There is.

The present invention can be applied to a plate-type water-making device and a multi-effect water-making device in addition to the above-mentioned water-making device.

1,1'Water brewing equipment (vacuum evaporation type water brewing equipment)
2 Heater 3 Condensator 4 Air-water separation means 5 Condenser 6 Preheater 7 Water ejector 8 Seawater line 25 Hot water introduction pipe 26 Hot water discharge pipe 46 Extraction line 48 Brine discharge line 50 Heat transfer pipe 51 Cooling seawater discharge line 52 Fresh water Delivery line 59 Vacuum break valve 63 Brine check valve 68 Pressure gauge 71 Hot water supply line 84 Vacuum adjustment valve 100 Management device 110 Operation status acquisition unit 120 Abnormality detection unit 131 Control unit 132 Presentation unit

Claims

It is a management device that manages a vacuum evaporation type water production device that produces fresh water from seawater.
An operating state acquisition unit that acquires information on the operating state of the vacuum evaporation type water production device, and
An abnormality detection unit that detects an abnormality in the vacuum evaporation type water production device based on the information acquired by the operation state acquisition unit, and an abnormality detection unit.
A management device equipped with.
The management device according to claim 1, further comprising a control unit that controls the vacuum evaporation type water production device so that the abnormality is eliminated when the abnormality is detected.
The management device according to claim 1 or 2, further comprising a presenting unit that presents a method for eliminating the abnormality to the user of the vacuum evaporation type water production apparatus when the abnormality is detected.
The management device according to any one of claims 1 to 3, wherein the abnormality is an insufficient amount of fresh water produced.
The management device according to any one of claims 1 to 3, wherein the abnormality is an excessive salt concentration of the fresh water.
The management device according to any one of claims 1 to 3, wherein the abnormality is adhesion of a scale contained in the seawater into the vacuum evaporation type water production device.
The vacuum evaporation type water making apparatus is
A heater that heats raw seawater with jacket cooling water that cools the internal combustion engine of a ship to generate steam, and
A condenser that produces fresh water by cooling the steam generated by the heater with seawater for cooling.
The control device according to any one of claims 1 to 6.
It is a management method for managing vacuum evaporation type water production equipment that produces fresh water from seawater.
The operation state acquisition process for acquiring information on the operation state of the vacuum evaporation type water brewing device, and
An abnormality detection step for detecting an abnormality in the vacuum evaporation type water production device based on the information acquired in the operation state acquisition step, and an abnormality detection step.
Management method to prepare.
A management program for operating a computer as a management device for managing a vacuum evaporation type water production device that produces fresh water from seawater.
An operation state acquisition unit for acquiring information on the operation state of the vacuum evaporation type water brewing device, and an operation state acquisition unit, and
An abnormality detection unit that detects an abnormality in the vacuum evaporation type water production device based on the information acquired by the operation state acquisition unit.
A management program to make your computer work as.
A computer-readable recording medium that records a management program for operating a computer as a management device for managing a vacuum evaporation type water production device that produces fresh water from seawater.
The control program is
An operation state acquisition unit for acquiring information on the operation state of the vacuum evaporation type water brewing device, and an operation state acquisition unit, and
An abnormality detection unit that detects an abnormality in the vacuum evaporation type water production device based on the information acquired by the operation state acquisition unit.
A recording medium that makes a computer function as a computer.