TW202212268A - Management device managing vacuum vaporization-type fresh water generation device - Google Patents

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 device for managing vacuum evaporative water generator

The present invention relates to a management device, a management method, and a management program for managing a vacuum evaporation-type water generator for producing fresh water from seawater.

In the past, in ships operating at sea, a vacuum evaporative water-generating device for producing fresh water by evaporating seawater extracted from the sea under high vacuum has been used. Vacuum evaporative water generators are widely used as heat sources from steam or diesel engines mounted in boilers on ships and other waste heat (for example, Patent Document 1). Such a vacuum evaporative water generator is generally provided with a heater that heats and evaporates by exchanging the supplied raw seawater with warm water used for cooling a diesel engine, etc.; It is a closed container body that is kept in a decompressed (vacuum) state and dehydrated by condensing the generated steam. In the container body, a rehydrator with a plurality of heat transfer tubes is built in, and the steam is cooled and condensed by heat exchange with the cooling seawater flowing inside the heat transfer tubes, thereby desalinating. In addition, a part of the seawater for cooling discharged from the rehydrator is supplied to the heater as raw seawater. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Utility Model Registration No. Sho 62-43692

[Technical problem to be solved by the invention]

At present, the operation adjustment of the vacuum evaporation water generator is carried out by the crew of the ship, and the troubleshooting is also the same. However, in recent years, due to the saving of manpower in the engine room or the reduction of the skills of the crew, it is impossible to solve the problem by itself, and the external personnel of the ship (for example, the auxiliary window of the equipment manufacturer) are frequently asked questions of low difficulty.

The present invention is made in order to solve the above-mentioned problems, and aims to support the solution of the problems related to the vacuum evaporation type water generator. [Technical means]

The above object of the present invention is achieved by the management device of the present invention. The aforementioned management device is a management device for managing a vacuum evaporation type water generator for producing fresh water from seawater, and is characterized by comprising: an operation state acquisition unit for acquiring information on the operation state of the vacuum evaporation type water generator; and an abnormality detection unit , based on the information obtained by the operation state obtaining unit, the abnormality of the vacuum evaporation type water generator is detected.

In a preferred embodiment of the present invention, the vacuum evaporation type water generator is further provided with a control unit, which controls the vacuum evaporation type water generator to eliminate the abnormality when the abnormality is detected.

In a preferred embodiment of the present invention, the vacuum evaporative water generator is further provided with a prompting part, which prompts the user of the vacuum evaporative water generator to cancel the abnormality when the abnormality is detected. method.

In this embodiment, the aforementioned abnormality may be the shortage of the aforementioned fresh water production.

In this embodiment, the abnormality may be that the salt concentration of the fresh water is too high.

In this embodiment, the abnormality may be the scale contained in the seawater adhering to the vacuum evaporative water generator.

In this embodiment, the abnormality may be caused by insufficient heating capacity of the heater resulting in insufficient water production of the fresh water.

In the above-mentioned embodiment, the above-mentioned vacuum evaporative water generation device may be provided with: a heater for heating raw seawater and generating steam by cooling the jacket cooling water of the internal combustion engine of the ship; and a condenser, which is installed in the above-mentioned heater. The steam produced is cooled with seawater by cooling and produces fresh water.

In this embodiment, the main reason for the abnormality is that the cooling water of the jacket is insufficient, and the control unit preferably controls or prompts the user to increase the amount of water.

In this embodiment, the main cause of the abnormality is that the temperature of the jacket cooling water is lower than a predetermined value, and the prompting unit preferably prompts the user to raise the temperature above the predetermined value.

In this embodiment, the main cause of the abnormality is the contamination of the heater caused by the cooling water of the jacket, or the situation that the heater adheres to the scale contained in the seawater, and the prompting part preferably prompts the user Clean the hot water supply line or perform an operation to suppress the adhesion of the scale.

In this embodiment, the abnormality may be caused by insufficient cooling capacity of the condenser, resulting in insufficient water production of the fresh water.

In this embodiment, the secondary cause of the abnormality is that the supply of the cooling seawater to the vacuum evaporative water generator is insufficient, and the control unit preferably controls or prompts the user to make the The supply of seawater for cooling has been increased.

In this embodiment, the aforementioned vacuum evaporative water generating device is preferably It is further provided with: a water recuperator, which is provided with a plurality of heat transfer tubes inside, and cools the steam supplied in the condenser to generate fresh water; and The main reason for the aforementioned abnormality is the contamination in the aforementioned heat transfer tube, or the situation where the aforementioned heat transfer tube adheres to the scale contained in the aforementioned seawater, The prompt part is used to prompt the user to clean the heat transfer tube.

In this embodiment, the abnormality may be the reduction of the vacuum in the condenser.

In this embodiment, the above-mentioned vacuum evaporative water generator preferably further includes: a water recuperator, which is provided with a plurality of heat transfer tubes inside, and cools the steam supplied in the above-mentioned condenser to generate fresh water; and The water ejector keeps the inside of the condenser in a vacuum state while supplying the cooling seawater to the rehydrator. The main cause of the abnormality may be the malfunction of the water ejector.

In this embodiment, the secondary cause of the aforementioned abnormality is that the opening degree of the flow regulating valve for adjusting the flow rate of the seawater supplied by the aforementioned water jet is insufficient, so that the driving water pressure of the aforementioned water jet does not reach the specified value. The control unit preferably controls the opening degree of the flow regulating valve.

In this embodiment, the secondary cause of the abnormality is that the pressure in the cooling seawater discharge line for discharging the cooling seawater from the rehydrator to the outside of the ship is higher than a predetermined value. Preferably, the user is prompted to confirm the blockage of the cooling seawater discharge line or the opening degree of the cooling water outlet valve provided in the cooling seawater discharge line, or the control unit adjusts the opening degree of the cooling water outlet valve.

In this embodiment, the secondary cause of the abnormality is that the pressure of the cooling seawater supplied from the water jet is negative, and the prompting portion preferably prompts the user to turn the cooling water outlet valve The cooling water outlet valve is installed in the cooling seawater discharge line for discharging the cooling seawater from the rehydrator to the outside of the ship, or the control unit adjusts the opening degree of the cooling water outlet valve.

In this embodiment, the secondary cause of the abnormality is the corrosion or wear of the nozzle or the radiating cylinder of the water jet. The prompting portion preferably prompts the user to replace the nozzle or the radiating cylinder with a new one. By.

In this embodiment, the secondary cause of the abnormality is that the brine check valve provided in the brine discharge line of the water ejector is in a fixed state after the raw seawater remaining after the steam is generated, and the brine check valve is in a fixed state. , preferably to prompt the user to open, inspect or clean the brine check valve, or replace the brine check valve with a new one.

In this embodiment, the secondary cause of the abnormality is that the nozzle of the water jet is blocked by foreign objects, and the prompting portion preferably prompts the user to clean the nozzle.

In this embodiment, the secondary cause of the abnormality may be the closing of the suction line used to deliver the non-condensable gas in the condenser to the water ejector, or the vacuum adjustment valve disposed on the suction line closure.

In this embodiment, a further cause of the secondary cause is that the check valve is in a fixed state, and the prompting unit preferably prompts the user to open the check valve, clean the check valve, or set the check valve to be checked. The valve was replaced with a brand new one.

In this embodiment, a further reason for the aforementioned secondary reason is that the opening degree of the aforementioned vacuum regulating valve is insufficient, and the aforementioned prompting portion preferably prompts the aforementioned user to adjust the aforementioned vacuum regulating valve in the opening direction.

In this embodiment, the secondary cause of the abnormality is that there is an air leak from the condenser. Repair the aforementioned leaks.

In this embodiment, the secondary cause of the abnormality is that the pressure gauge used for measuring the vacuum degree of the vacuum state is faulty, and it is preferable to prompt the user to replace the pressure gauge with a new one.

In this embodiment, the abnormality is a situation in which the salt concentration of the fresh water is too high due to an excessive amount of the fresh water produced, and the control unit preferably controls the water production to be below the rated water production.

In this embodiment, the above-mentioned vacuum evaporative water generator preferably further includes: a water recuperator, which is provided with a plurality of heat transfer tubes inside, and cools the steam supplied in the above-mentioned condenser to generate fresh water; and The water ejector keeps the inside of the condenser in a vacuum state while the water for cooling is supplied from the rehydrator. The reason for the abnormality is that the temperature of the raw seawater is lower than the specified value, resulting in the excessive salt concentration of the fresh water. In this case, the control unit preferably rotates a vacuum adjustment valve, which is arranged on the air extraction line for conveying the non-condensable gas in the condenser to the water ejector, or controls for destroying The degree of opening of the vacuum break valve in the aforementioned vacuum state.

In this embodiment, the abnormality is a situation in which the salt concentration of the fresh water is too high due to changes in the inlet temperature of the jacket cooling water or seawater. Operate with low water production, or do not make drastic changes in operating conditions.

In this embodiment, the abnormality is a situation in which the scale adheres when the amount of fresh water produced is too large, and the control unit preferably controls the amount of water produced to be less than or equal to the rated water production.

In this embodiment, the abnormality is a situation in which the scale adheres without cooling when the operation of the vacuum evaporation type water generator is stopped, and the control unit preferably controls the supply of warm water to stop when the operation is stopped. After a predetermined time or more, only the cooling water system is operated to cool the heater.

In this embodiment, a warm water introduction pipe and a warm water discharge pipe for introducing and discharging the jacket cooling water, respectively, are connected to the heater, and the abnormality occurs when the warm water introduction pipe or the warm water is discharged from the heater. When the leakage of the warm water inlet and outlet valves of the discharge pipe leads to the adhesion of the scale, the prompting part preferably prompts the user to confirm, maintain or replace the opening degree of the warm water inlet and outlet valves.

The above-mentioned object of the present invention is achieved by the management method of the present invention; the aforementioned management method is a management method of a vacuum evaporation type water generator for producing fresh water from seawater, and is characterized by comprising: an operation state obtaining step for obtaining information about The information on the operation state of the vacuum evaporation type water generator; and the abnormality detection step is to detect the abnormality of the vacuum evaporation type water generator based on the information obtained in the operation state acquisition step.

The above-mentioned object of the present invention is achieved by the management program of the present invention; the above-mentioned management program is a computer program for managing the vacuum evaporative water generator, and the program is loaded into the computer to execute and manage the vacuum evaporative water generator for producing fresh water from seawater. A water device; after the program is executed, it has: an operation state acquisition unit that acquires information about the operation state of the vacuum evaporation type water generator; and an abnormality detection unit that detects the operation state based on the information acquired by the operation state acquisition unit Abnormalities of vacuum evaporative water generators. [Effect of invention]

According to the present invention, it is possible to support the solution of the problems related to the vacuum evaporative water generator.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the following embodiment.

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

[The composition of the water making device] FIG. 2 is a schematic structural diagram of the water generating device 1 ; FIG. 3 is a cross-sectional view showing the internal structure of the water generating device 1 .

The water generator 1 includes a heater 2 and a condenser 3 including a steam-water separation mechanism 4 , a water recuperator 5 and a preheater 6 . In addition, in FIG. 3, the symbol P1 is a jet pump used for extracting seawater from the sea; the jet pump P1 is supplied to the water jet 7 installed in the condenser 3 through the seawater line 8, as a structure of the water generator 1 The cooling water for water is supplied to the rehydrator 5 . The water ejector 7 is constituted as a decompression mechanism for keeping the inside of the condenser 3 in a decompressed (vacuum) state. The seawater pipeline 8 is provided with a temperature detector 90 for detecting the temperature of seawater, a seawater pressure gauge 64 for measuring the water pressure of the seawater, a strainer 58 for filtering the seawater, and a flow rate for adjusting the flow rate of the seawater Adjust valve 99.

The heater 2 includes a cylindrical upper tube 20 and a lower tube 21 arranged up and down, and a plurality of heating tubes 22 arranged in the upper tube 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 pipes 22 are arranged so as to extend in the upper pipe 20 in the up-down direction, and both ends thereof are fixed to the upper wall surface and the lower wall surface of the upper pipe 20 . The lower pipe 21 is provided with a raw seawater inlet 23, and the raw seawater is introduced into each heating pipe 22 by introducing the raw seawater into the lower pipe 21 from the raw seawater supply line 24. On the side wall surface of the upper pipe 20, a cylindrical warm water introduction pipe 25 and a warm water discharge pipe 26 are connected up and down. Warm water such as jacket cooling water used for cooling the diesel engine 70 or the like is introduced into the upper pipe 20 from the warm water introduction pipe 25 through the warm water supply line 71 . The raw seawater introduced into each heating pipe 22 is heated and evaporated by heat exchange with the warm water introduced into the upper pipe 20 from the warm water introduction pipe 25, and is supplied to the condenser 3 as steam. The warm water in the upper pipe 20 in heat exchange with the raw seawater is sent to the jacket water cooler 73 from the warm water discharge pipe 26 through the warm water discharge line 72 .

The warm water supply line 71 is provided with a warm water inlet valve 80 and a three-way valve 81 for flow adjustment; and the warm water discharge line 72 is provided with a warm water outlet valve 82 and a temperature detector 65 . The warm water supply line 71 and the warm water discharge line 72 are connected via connection lines 74 and 75 , and the connection line 75 is provided with a flow rate adjustment valve 83 . The three-way valve 81 for flow adjustment can adjust the flow of both the warm water supply line 71 and the connection line 74 . In addition, the warm water supply line 71 is provided with a flow meter 91 for detecting the flow rate of warm water, and a temperature detector 92 for detecting the temperature of the warm water.

The condenser 3 is provided with a cylindrical sleeve 30 with a diameter larger than that of the upper pipe 20 and the lower pipe 21 of the heater 2. The lower end of the sleeve 30 is connected and fixed for heating by tightening bolts 28A and nuts 28B. The upper tube 20 of the device 2 is attached. In this way, the heater 2 is detachably supported in a state of being suspended from the condenser 3 , and the inside of the sleeve 30 is a steam passage through which the steam supplied from the heater 2 flows. On the upper part of the casing 30 , a cylindrical horizontal pipe 31 that forms the casings of the rehydrator 5 and the preheater 6 is provided to pass through the casing 30 . Both ends of the horizontal pipe 31 are connected to the first header 32 and the second header 33, respectively.

In the lower part of the sleeve 30, there is a steam-water separation mechanism 4 for capturing liquid droplets from the steam. In this embodiment, the steam-water separation mechanism 4 is constituted by a steam-water separation plate 40 and a multi-layered screen separator 41 which is a fine-mesh mesh body formed by thin lines. An opening 34 for introducing steam into the horizontal pipe 31 is formed in the center portion of the upper end of the horizontal pipe 31 in the casing 30 . Inside the steam-water separation mechanism 4, there are a pressure gauge 68 for measuring steam pressure, a steam thermometer 94 for measuring steam temperature, and a water level sensor 98 for measuring salt water level. Further, the side surface of the steam-water separation mechanism 4 is provided with a suction port 49, and the suction port 49 is connected to a vacuum breaking valve 59 for breaking the vacuum state.

The water recuperator 5 is used for cooling the steam supplied in the condenser 3 to generate fresh water, and has a plurality of heat transfer tubes 50 therein. Each heat transfer tube 50 is arranged along the horizontal direction, and both ends thereof are fixed to the left and right wall surfaces of the horizontal tube 31 and communicate with the inside of the first and second headers 32 and 33 . Above the heat transfer tubes 50 constituting the rehydrator 5, a plurality of heat transfer tubes 60 constituting the preheater 6 are provided. The plurality of heat transfer tubes 60 are also arranged along the horizontal direction, and both ends thereof are fixed to the left and right wall surfaces of the horizontal tube 31 and communicate with the insides of the first and second headers 32 and 33 .

The inside of the first and second headers 32, 33 are divided into upper preheating header chambers 32B, 33B and lower condensation header chambers 32A, 33A by partition plates 35, 36, respectively . In the condensation header 32A of the first header 32, a cooling water inlet 37 for introducing cooling seawater for cooling and condensing steam is provided. A water jet 7 is connected to the cooling water inlet 37 via a cooling water line 54, and seawater from the jet 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 into the heat transfer tubes 50 toward the condensation header 33A of the second header 33 on the other side, the cooling seawater and the horizontal The steam supplied in the pipe 31 is cooled and condensed by heat exchange. The fresh water generated by condensation is taken out from the fresh water delivery line 52 through the fresh water outlet 38 provided at the lower end of the horizontal pipe 31, and sent to the fresh water tank (not shown) by the fresh water pump P2 (not shown in FIG. 2). In the fresh water delivery line 52, there are a salinity meter 79 for measuring the salt concentration of fresh water, a fresh water level switch 88 for detecting the liquid level of fresh water, a flow meter 95 for measuring the flow rate of fresh water, and for adjusting the fresh water The flow rate adjustment valve 62 of the flow rate. The condenser 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; the cooling seawater discharged from the cooling water outlet 39 is, for example, discharged by cooling seawater The line 51 is discharged to the outside of the ship or the like. The cooling seawater discharge line 51 is provided with a temperature detector 53 for measuring the temperature of the cooling seawater, a discharge pressure gauge 55 for measuring the water pressure of the cooling seawater, and cooling water for adjusting the flow rate of the cooling seawater Outlet valve 56 .

The partition plate 36 of the second header is provided with a raw seawater inlet 45 for introducing a part of the cooling seawater discharged from the rehydrator 5 . A part of the cooling seawater discharged from the rehydrator 5 is introduced into the preheating header chamber 33B of the second header 33 through the raw seawater inlet 45 . Next, the header chamber 32B for preheating of the first header 32 facing the other side flows into each of the heat transfer tubes 60 constituting the preheater 6 . At this time, when the seawater for cooling flows in each heat transfer tube 60 , it is heated by heat exchange with the steam supplied in the horizontal tube 31 . The preheating header chamber 32B of the first header 32 is provided with a raw seawater outlet 29 for discharging the cooling seawater. The cooling seawater discharged from the raw seawater outlet 29 is supplied to the lower pipe 21 of the heater 2 as raw seawater through the raw seawater supply line 24 . The raw seawater supply line 24 is provided with a water supply regulating 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 port 57 for adjusting the flow rate of the cooling seawater , and the rehydrator exhaust valve 44 for exhausting the air mixed in the preheater 6 .

A gas outlet 42 is provided at the outer upper end of the sleeve 30 of the horizontal pipe 31 , and a salt water outlet 43 is provided at the lower end of the sleeve 30 . The gas discharge port 42 is connected to the water jet 7 through the air suction line 46, and the non-condensable gas inside the horizontal pipe 31 is sucked by the water jet 7, so that the horizontal pipe 31 or the casing 30 is kept at a pressure lower than atmospheric pressure. In a decompressed (vacuum) state, the raw seawater is evaporated and condensed in a decompressed (vacuum) state in the horizontal pipe 31 or the casing 30 . The degree of vacuum in the vacuum state is measured by the pressure gauge 68 connected to the condenser 3 . The flow rate of the suction line 46 can be adjusted by a vacuum adjustment valve (flow adjustment valve) 84 . In addition, the salt water outlet 43 is connected to the water jet 7 via the salt water discharge line 48, and the salt water (seawater) evaporated in the casing 30 is sucked from the salt water outlet 43 by the water jet 7 and discharged to the outside of the ship. A brine check valve 63 is provided on the brine discharge line 48 .

[Configuration of the management device] The management device 100 shown in FIG. 1 is communicably connected to the water generating device 1 by wire or wirelessly. In the present embodiment, the management device 100 is installed inside the ship, but may be installed outside the ship (eg, on land). In addition, the management apparatus 100 may be constituted by a general-purpose computer, or may be constituted by a dedicated computer such as a control panel. Alternatively, the management device 100 may be configured integrally with the water generating 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 of the operation state acquisition unit 110 , the abnormality detection unit 120 , and the troubleshooting unit 130 may be implemented by hardware such as a logic circuit, or may be implemented by software such as a CPU. In the case of implementing the aforementioned parts in software, the aforementioned parts can be implemented by the CPU reading and executing the management program stored in the storage device of the management device 100 from the main storage device. The management program can also be downloaded to the management device 100 via a communication network such as the Internet, and the management program can also be stored in a computer-readable non-temporary medium such as a CD-ROM, and installed to the management device via the storage medium. Device 100 .

The operation state acquisition unit 110 acquires information on the operation state of the water generator 1 (operation state acquisition step). In this embodiment, the operation state acquisition unit 110 acquires the temperature detector 90 , the temperature detector 66 , the flow meter 91 , the temperature detector 92 , the temperature detector 65 , the pressure gauge 68 , and the steam thermometer from the water generator 1 . 94. The detected values of the flow meter 95, the salt concentration meter 79, the feed water pressure gauge 69, the sea water pressure gauge 64, the temperature detector 53, the water level sensor 98 and the drainage pressure gauge 55 are used as the aforementioned information.

The abnormality detection unit 120 detects an abnormality of the water generation device 1 based on the information on the operation state of the water generation device 1 acquired by the operation state acquisition unit 110 . Each detection value contained in the above information is defined as a range of values that are judged to be normal. When at least one of the detected values is outside the appropriate range, the abnormality detection unit 120 determines that the water generating device 1 is abnormal, and finds out the content (phenomenon) and the main cause of the abnormality. The situation of the main cause can be found out, and the abnormality detection unit 120 inputs the found phenomenon and the information of the main cause to the troubleshooting unit 130 . When the main cause cannot be found, the abnormality detection unit 120 inputs the found phenomenon and related information for which the main cause is unknown to the troubleshooting unit 130 .

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

The control unit 131 controls the water generating device 1 to eliminate the abnormality when the abnormality is detected by the abnormality detection unit 120 . The abnormality targeted by the control unit 131 is limited to the abnormality that can be automatically resolved without manpower.

The prompting part 132 prompts the user of the water generating device 1 with a method for removing the abnormality when the abnormality is detected by the abnormality detecting part 120 . The state of prompting to the user is not particularly limited, and may be displayed on a display or guided by a voice. Alternatively, it is also possible to output the information for removing the aforementioned abnormality to other devices (eg, the operation panel of the ship) by wire or wirelessly. The abnormality to which the presentation unit 132 is targeted is not particularly limited, and may be limited to the abnormality that cannot be automatically resolved. In the present embodiment, the control unit 131 is activated when an abnormality that can be automatically canceled is detected, and the prompting unit 132 is activated when an abnormality that cannot be automatically canceled is detected.

[Outline of Troubleshooting] FIG. 4 is a flow chart 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 generator 1 (operation state acquisition step S1); the abnormality detection unit 120, based on the information acquired by the operation state acquisition unit 110, An abnormality of the water generating device 1 is detected (abnormality detection step S2). When an abnormality is actually detected (YES in step S3 ), the troubleshooting unit 130 determines whether or not 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 generating device 1 to remove the abnormality (step 5 ). Thereby, the abnormal situation can be eliminated (YES in step 6), and the process returns to step 2. When the detected abnormality is an abnormality that cannot be automatically resolved (NO in step S4), or a case where the abnormality cannot be removed by the control unit 131 (NO in step 6), the prompting unit 132 prompts the user for The method of removing the abnormality (step 7).

[Specific example of troubleshooting] Figures 5 to 8 show the main phenomena that may occur in the water generating device, the main reasons corresponding to the phenomena, and the processing of the control section and the prompting content of the prompting section corresponding to the main reasons.

The main phenomena that may occur in the water making device are roughly as follows: 1) Insufficient water production (Figure 5, Figure 6) 2) High salt concentration in fresh water (Figure 7) 3) Scale adhesion (Fig. 8). The "water production amount" in this embodiment means the production amount of fresh water produced by the water production device 1 per unit time. The freshwater salinity concentration is set as a rated value according to the performance required by the water generator 1. Further, scale is a component such as calcium sulfate contained in seawater, which is precipitated by evaporation of seawater, and tends to adhere to the heating pipe 22 and the like.

(phenomenon 1) First, the processing in the case where the phenomenon 1 (insufficient water production amount) shown in FIGS. 5 and 6 is detected will be described. The sub-phenomenon corresponding to phenomenon 1 is: 11) Reduced heating capacity (Figure 5) 12) Insufficient cooling capacity (Figure 5) 13) The vacuum in the condenser 3 is reduced (Fig. 6). Primary cause of sub-phenomenon 11 (reduced heating capacity) (Cause 1): A) Insufficient amount of warm water B) The temperature of the warm water is lower than the specified value C) Pollution and scale adhesion in the warm water supply line. The reason A is found by the detection value of the flow meter 91 , the temperature detector 92 or the temperature detector 65 ; the reason B is found by the detection value of the temperature detector 92 . The reason C is based on 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 detection At least one of the detection values of the device 66 is found.

When the cause A is found, the control unit 131 is activated to increase the warm water flow by adjusting at least one of the warm water inlet valve 80 , the three-way valve 81 for flow adjustment, the warm water outlet valve 82 and the flow adjustment valve 83 . If the phenomenon is not resolved by this, the prompting unit 132 is activated to prompt the user to increase the flow rate of warm water.

When the cause B is found, the prompting unit 132 is activated to prompt the user to raise the temperature of the warm water to a predetermined value or more. Find out the situation of reason C, start the prompting part 132, and prompt the user: ・Washing warm water supply line 71 ・Operate to suppress the adhesion of scale.

The primary cause of sub-phenomenon 12 (insufficient cooling capacity): D) Poor spitting of fresh water E) Insufficient cooling water F) The cooling water temperature is high G) Pollution and scale adhesion in the heat transfer tube 50 of the rehydrator 5 H) Poor air discharge in the heat transfer tube 50 of the rehydrator 5

Secondary Causes of Cause D (Cause 2): D1) The flow regulating valve 62 of the fresh water delivery line 52 is closed D2) Pump P2 failure D3) The piping of the fresh water delivery line 52 is blocked D4) Pump P2 is taking in air. These secondary causes D1 to D4 can be found by the fresh water discharge pressure and the fresh water pump switch in addition to the detection value (water production amount) of the flow meter 95 and the detection value of the fresh water level switch 88 .

When the secondary causes D1 to D4 are found, any one of them activates the prompting unit 132 . The prompting part 132 prompts to open the valve of the fresh water delivery line 52 for the secondary reason D1; for the secondary reason D2, prompts to repair the pump P2; for the secondary reason D3, prompts to check and clean the piping of the fresh water delivery line 52; Adjustment of pump P2 is prompted for secondary cause D4.

Secondary Causes for Cause E (Cause 2): E1) Malfunction of water jet 7 E2) The supply amount of cooling water (seawater for cooling) to the water generator 1 is small. The secondary cause E1 is caused by the failure of the water jet 7 itself; the secondary cause E2 is caused by the failure of the jet pump P1 or other piping. These secondary causes E1 and E2 are found by the detection value (injector inlet pressure) of the seawater pressure gauge 64 and the detection value of the pressure gauge 67 . When the secondary cause E1 is found, the control unit 131 or the presentation unit 132 performs processing corresponding to the cause J ( FIG. 6 ) described later. When the secondary cause E2 is found, the control unit 131 is activated to perform control to increase the amount of cooling water. In this way, if the phenomenon is not resolved, the prompting part 132 is activated to prompt the user: ・Increase the amount of cooling water ・Check the pump and piping system.

The reason F is found by the detection value of the temperature detector 90 . The reason G is based on the detection value of the seawater pressure gauge 64 (inlet pressure of the ejector), 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 steam thermometer 94 At least one of the detected values is found. When the cause F is found, the prompting unit 132 is activated to prompt the user to lower the cooling water temperature. When the cause G is found, the prompting unit 132 is activated to prompt the user to clean the heat transfer tube 50 of the rehydrator 5 .

The reason H is found by the detection value of at least one 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 cause H is found, the prompting unit 132 is activated to prompt the user to check, clean or replace the vacuum adjustment valve 84 .

As shown in Figure 6, the primary cause of sub-phenomenon 13 (vacuum reduction): J) Malfunction of water jet 7 K) Where there is an air leak L) Malfunction of pressure gauge 68 M) Insufficient cooling water N) The hole of the heating pipe 22 P) Excessive water supply.

Secondary reasons for reason J: J1) The driving water pressure of the water jet 7 is less than the specified value J2) The back pressure is higher than the specified value J3) The pressure of the drain pressure gauge 55 / the pressure of the pressure gauge 67 becomes negative pressure J4) Corrosion and wear of the nozzle or radiation cylinder of the water jet 7 J5) The brine check valve 63 is in a fixed state J6) The nozzle of water jet 7 is blocked by foreign matter J7) The suction line 46 or the vacuum adjustment valve 84 is closed. In addition, "back pressure" means the pressure in the seawater discharge line 51 for cooling.

Find out the situation of reason J1, the third reason of reason J1 (cause 3): J11) Malfunction of jet pump P1 J12) Excessive pressure loss of piping J13) The opening degree of the flow regulating valve 99 is insufficient. The reasons J11 and J13 are found by the inlet pressure of the jet pump P1. When the cause J11 is found, the prompting unit 132 is activated to prompt the user to repair the jet pump P1. Find out the situation of the reason J13, start the control part 131, and control and adjust the opening degree of the flow regulating valve 99. In this way, if the phenomenon is not resolved, the prompting part 132 is activated to prompt the user to adjust the opening degree of the flow regulating valve 99 . The reason J12 cannot be found automatically, but if the reasons J11 and J13 are not found, the possibility of the reason J12 is high. Therefore, the presenting unit 132 presents the cause 12 as a strong candidate, and presents the user to review the piping diameter, the type of valve, and the like to reduce pressure loss.

The reason J2 is found by the detection value of the pressure gauge 67 . If the cause J2 is found, the control unit 131 is activated to adjust the opening degree of the cooling water outlet valve 56 provided in the seawater discharge line 51 for cooling. If the phenomenon is not resolved, the prompting part 132 is activated to prompt the user to confirm the blockage of the cooling seawater discharge line 51 and the opening degree of the cooling water outlet valve 56 provided in the cooling seawater discharge line 51 .

The reason J3 is found by the detection values of the discharge pressure gauge 55 and the pressure gauge 67 . Find out the situation of the reason J3, start the control part 131, and adjust the opening degree of the cooling water outlet valve 56. In this way, if the phenomenon is not resolved, the prompting part 132 is activated to prompt the user to rotate the cooling water outlet valve 56 slightly.

The reason J4 is found by the inlet pressure of the jet pump P1. When the reason J4 is found, the prompting part 132 is activated to prompt the user to replace the nozzle or the radiating cylinder with a new one.

The reasons J5 to J7 are found by the inlet pressure of the jet pump P1 and the evaporation temperature or evaporation pressure of the raw seawater measured by the pressure gauge 68 , the steam thermometer 94 and the water level sensor 98 . Find out the situation of reason J5, start the prompting part 132, and prompt the user: ・Open the brine check valve for inspection or cleaning ・If necessary, replace the brine check valve with a new one.

When the cause J6 is found, the prompting unit 132 is activated to prompt the user to clean the nozzle.

Find out the situation of reason J7, the third reason of reason J7, which can be listed as follows: J71) The check valve of the exhaust line 46 is in a fixed state J72) The degree of opening of the vacuum adjustment valve 84 is insufficient. Find out the situation of the reason J71, activate the prompting part 132, and prompt the user: ・Check and clean check valve opening ・Replace the check valve as necessary. If the cause J72 is found, the prompting part 132 is activated to prompt the user to adjust the vacuum adjustment valve 84 to the opening direction.

The reason K, which is also the same as the reasons J5 to J7, is found by the inlet pressure of the jet pump P1 and the evaporation temperature or evaporation pressure of the raw seawater measured by the steam thermometer 94 and the pressure gauge 68. When the cause K is found, the prompting unit 132 is activated to prompt the user to perform an air test at a predetermined air pressure (eg, 0.05 MPa) to find and repair the leak.

When the cause L is found, the prompting unit 132 is activated to prompt the user to replace the pressure gauge 68 with a new one.

In the case of finding out the cause M, the control unit 131 or the prompting unit 132 operates in the same manner as in the case of finding the cause E described above.

When the cause N is found, the prompting part 132 is activated to prompt the user to find the hole, the loose part, and replace (temporarily insert) the tube.

Find the case of cause P, the secondary cause of cause P: P1) The opening degree of the water supply adjustment valve 61 is too large P2) Wear of water supply orifice 57 P3) The water supply pressure is high. The reasons P1 and P3 are found by the pressure of the water supply port 57 . If the cause P1 is found, the control unit 131 is activated to adjust the opening degree of the water supply valve 61 . In this way, if the phenomenon is not resolved, the prompting part 132 is activated to prompt the user to the degree of opening of the water supply adjusting valve 61 . When the cause P3 is found, the control unit 131 is activated to perform the following controls: ・Rotate the opening degree of the water supply adjustment valve 61 ・Increase the opening degree of the cooling water outlet valve 56 of the seawater discharge line 51 for cooling. In this way, if the phenomenon is not resolved, the prompting part 132 is activated to prompt the user: ・Rotate the opening degree of the water supply adjustment valve 61 ・Increase the opening degree of the cooling water outlet valve 56 of the seawater discharge line 51 for cooling.

The reason P2 cannot be automatically found, but the reasons P1 and P3 are not found, the possibility of the reason P2 is high. Therefore, the presentation unit 132 presents the cause P2 as a strong candidate, and presents to the user that the water supply port 57 is replaced with a brand-new one.

(phenomenon 2) Next, the processing in the case where the phenomenon 2 shown in FIG. 7 (high salt concentration in fresh water) is detected will be described. The sub-phenomenon corresponding to phenomenon 2 is: 21) Excessive water production (too much water production) 22) Low evaporation temperature (low seawater temperature) 23) Poor drainage of salt water 24) Problem occurs in screen separator 41 25) Damage to the steam-water separation plate 40 26) The hole of the heat transfer tube 50 of the rehydrator 5 (the expansion part is loose) 27) Changes in operating conditions 28) Pollution of the original seawater. Moreover, although the salinity meter is not shown in figure, it is installed in the fresh water delivery line 52.

The sub-phenomenon 21 (excessive water production) is detected by the detection value (water production amount) of the flow meter 95 . When the sub-phenomenon 21 is detected, the control unit 131 is activated to control the water generation device 1 so that the water generation amount is equal to or less than the rated water generation amount. In this way, if the phenomenon is not resolved, the prompting unit 132 is activated to prompt the user that the operation is below the rated water production.

The sub-phenomenon 22 (low evaporation temperature) is detected by the detection value (water production amount) of the flow meter 95 and the detection value of the steam thermometer 94 . When the sub-phenomenon 22 is detected, the control unit 131 is activated to perform at least one of the following controls: ・Turn vacuum adjustment valve 84 ・The evaporation temperature is raised by slightly opening the vacuum break valve 59 . In this way, if the phenomenon is not resolved, the prompting part 132 is activated to prompt the user: ・Turn vacuum adjustment valve 84 ・The evaporation temperature is raised by slightly opening the vacuum break valve 59 .

Causes of sub-phenomenon 23 (poor drainage of salt water): Q) Malfunction of water jet 7 R) Excessive water supply. When the cause Q is found, the control unit 131 or the prompting unit 132 performs processing corresponding to the aforementioned cause J ( FIG. 6 ). When the cause R is found, the control unit 131 or the prompting unit 132 performs processing corresponding to the cause P described above.

Cause of sub-phenomenon 24 (problem at screen separator 41): S) salt precipitation, solid adhesion There is a gap between T) and the wall of the sleeve 30 .

When the cause S is found, the prompting unit 132 is activated to prompt the user: ・Inspect and clean the screen separator 41 to remove salt ・Replace the screen separator 41 with a brand new one.

When the cause T is found, the prompting unit 132 is activated to prompt the user: ・Installation without gap ・If the gap cannot be filled, replace the sleeve 30 with a new one.

When the sub-phenomenon 25 is detected, the prompting unit 132 is activated to prompt the user to replace the soda-water separation plate 40 with a new one.

The sub-phenomenon 26 (the hole of the heat transfer tube 50 of the rehydrator 5 (the expansion part is loose)) is detected by the detection values of the discharge pressure gauge 55 and the feed water pressure gauge 69 . When the sub-phenomenon 26 is detected, the prompting part 132 is activated to prompt the user to find the broken hole, the loose place, and replace (temporarily insert) the tube.

The sub-phenomenon 27 (variation of 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 sub-phenomenon 27 is detected, the prompting unit 132 is activated to prompt the user: ・Reduce the amount of warm water and temporarily operate with a low amount of water ・No drastic changes to operating conditions are made.

Sub-phenomenon 28 (contamination of the original seawater) is determined by 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), the detection value of the temperature detector 53, the temperature detector At least one of the detected value of 65 and the detected value of temperature detector 66 is detected. When the sub-phenomenon 28 is detected, the prompting unit 132 is activated to prompt the user to avoid operating in ports, estuaries, or polluted sea areas.

(phenomenon 3) Next, the process in the case where phenomenon 3 (scale adhesion) as shown in FIG. 8 is detected will be described. In the present embodiment, the "adherence" of the object to be treated means the adhesion of scale in an amount that hinders the operation of the water generator 1 . The sub-phenomenon corresponding to phenomenon 3 is: 31) Insufficient water supply 32) Excessive water production 33) No scale inhibitor injected 34) Cooling is not performed when operation is stopped 35) Leakage from the warm water inlet pipe 25 or the warm water discharge pipe 26 (when the water generator 1 is stopped) 36) Warm water temperature is high.

Reasons for sub-phenomenon 31 (insufficient water supply): U) The degree of opening of the water supply adjustment valve 61 is insufficient V) Blockage of the water supply orifice 57 W) Failure of feed water pressure gauge 69 X) The pressure in the heat transfer tube 50 of the rehydrator 5 is insufficient.

The reason U is found by the detection value of the water supply pressure gauge 69 . When the cause U is found, the control unit 131 is activated to control the water supply adjustment valve 61 to open, and the water supply pressure is within the green mark (for example: 0.04~0.06MPa). If the phenomenon is not resolved by this, the prompting part 132 is activated to prompt the user to keep the water supply pressure within the green mark.

When the cause V is found, the prompting unit 132 is activated to prompt the user: ・Inspect and clean the water supply port 57 ・Check and clean the filter 58 of the seawater line 8.

When the cause W is found, the prompting unit 132 is activated to prompt the user: ・Exhaust air and check the indicated value ・Replace the feed water pressure gauge 69 with a new one.

The reason X is found by the detection value of the discharge pressure gauge 55 . If the cause X is found, the control unit 131 is activated, and the cooling water outlet valve 56 is controlled to rotate, and the water supply pressure is within the green mark (eg, 0.04-0.06MPa). If the phenomenon is not resolved by this, the prompting part 132 is activated to prompt the user to keep the water supply pressure within the green mark.

In addition, in the case where the user cannot resolve the phenomenon for the causes U and X, the sub-phenomenon is highly likely to be the cause V or W.

The sub-phenomenon 32 (excessive water production) is detected by the detection value (water production amount) of the flow meter 95 . When the sub-phenomenon 32 is detected, the control unit 131 is activated, and the operation is controlled below the rated water production.

The sub-phenomenon 33 (no scaling inhibitor injected) is detected by the water level sensor of the chemical injection tank (not shown). When the sub-phenomenon 33 is detected, the prompting unit 132 is activated, and the user is prompted to follow the instruction manual of the medicinal solution to be used, and the prescribed amount is injected.

The sub-phenomenon 34 (cooling is 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 sub-phenomenon 34 is detected, the control unit 131 is activated to control the heater 2 to cool the heater 2 by operating only the cooling water system for a predetermined time (eg, 30 minutes) or more after the supply of warm water is stopped when the operation is stopped. If the phenomenon is not resolved by this, the prompting unit 132 is activated to notify the user that after the supply of warm water is stopped, only the cooling water system operation is performed to cool the heater 2 for a predetermined time or more.

Sub-phenomenon 35 (leakage from warm water inlet valve 80 or warm water outlet valve 82) is determined by the detection value of temperature detector 92 (warm water inlet temperature) and the detection value of temperature detector 65 (warm water outlet temperature) And detection. When the sub-phenomenon 35 is detected, the prompting unit 132 is activated to prompt the user to perform maintenance or replacement of the warm water inlet and outlet valves.

The sub-phenomenon 36 (warm water temperature is high) is detected by the detection value of the temperature detector 92 (warm water inlet temperature). When the sub-phenomenon 36 is detected, the prompting unit 132 is activated to prompt the user: ・Adjust the temperature of the warm water below the planned value ・Increase the water supply amount (for example: increase the water supply pressure to 0.06MPa) ・Increase the injection amount of scale inhibitor.

[Summarize] As described above, the management device 100 of the present embodiment includes the operation state acquisition unit 110 that acquires information on the operation state of the water generating device 1 ; information to detect the abnormality of the water generating device 1. Thereby, the ship's crew members and the like can grasp the abnormality of the water generating apparatus 1 at an early stage, so that it is possible to deal with the abnormality before actually hindering the operation, and it is possible to support the solution of the problem.

In addition, the management device 100 further includes a control unit 131 when an abnormality is detected, and controls the water generating device 1 to cancel the abnormality. Thereby, the problem can be solved irrespective of the corresponding processing ability of the crew and the like.

In addition, the management device 100 further includes a prompting unit 132 when an abnormality is detected, and prompts the user of the water generating device 1 with a method for resolving the abnormality. In this way, the crew members, etc., can solve problems independently without relying on external personnel of the ship. In addition, the parts that need to be repaired or replaced can be grasped.

[Variation] The embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the concept of the present invention.

In the above-mentioned embodiment, the water generator 1 uses waste heat generated from a diesel engine or elsewhere as a heat source, but the type of the water generator 1 is not particularly limited. The present invention, for example, can be applied to a water generating apparatus in the form of using steam (steam ejector form).

Fig. 9 is a schematic structural diagram of a water generating device 1' in the form of a steam ejector. In Fig. 9, parts having the same functions as those of the water generating device 1 shown in Fig. 2 are assigned the same symbols. In the water generator 1 shown in Fig. 2, the jacket cooling water is introduced into the heater 2, while in the water generator 1' shown in Fig. 9, the steam is introduced into the heater 2. Therefore, the water generator 1' includes a steam ejector 76, a steam supply line 77, and a steam discharge line 78. The steam introduction line 86 for introducing the steam to the steam ejector 76 is provided with a flow rate adjustment valve 96 and a steam pressure gauge 97 , and the steam discharge line 78 is provided with a steam discharge line 87 . [industrial availability]

The present invention, in addition to the above-mentioned water generator, can also be applied to a plate type water generator or a multi-function water generator.

1,1': water generator (vacuum evaporation type water generator) 2: heater 3: Condenser 4: Steam-water separation mechanism 5: Rehydrator 6: Preheater 7: Water jets 8: Seawater pipeline 25: Warm water inlet pipe 26: Warm water discharge pipe 46: Exhaust line 48: Salt water discharge line 50: heat transfer tube 51: Seawater discharge line for cooling 52: Fresh water delivery line 59: Vacuum break valve 63: Brine check valve 68: Manometer 71: warm water supply line 84: Vacuum adjustment valve 100: Management device 110: Operation status acquisition section 120: Anomaly Detection Department 130: Troubleshooting Department 131: Control Department 132: Reminder Department

[Fig. 1] is a block diagram of a water making system according to an embodiment of the present invention. [Fig. 2] is a schematic structural diagram of a water generating device according to an embodiment of the present invention. [Fig. 3] is a sectional view showing the internal structure of the water generating device shown in Fig. 2. [Fig. [FIG. 4] is a flowchart showing the operation of the management apparatus. [Fig. 5] is a diagram showing the main causes of insufficient water production among the main phenomena that may occur in the water production device, and the processing of the control unit and the prompting content of the prompting section corresponding to each main cause. [Fig. 6] is a diagram showing the main causes of insufficient water production among the main phenomena that may occur in the water production device, and the processing of the control unit and the prompting content of the prompting section corresponding to each main cause. [Fig. 7] is a diagram showing the main causes of excessive salt concentration in fresh water among the main phenomena that may occur in the water generator, and the processing of the control unit and the prompting content of the prompting unit corresponding to each cause. [Fig. 8] is a diagram showing the main causes of scale adhesion among the main phenomena that may occur in the water generator, and the processing of the control unit and the prompting content of the prompting unit corresponding to each cause. Fig. 9 is a schematic structural diagram of a water generator of a modification.

1: Water making device

100: Management device

110: Operation status acquisition section

120: Anomaly Detection Department

130: Troubleshooting Department

131: Control Department

132: Reminder Department

Claims (9)

A management device, which is a management device for a vacuum evaporation type water generator for producing fresh water from seawater, characterized by comprising: an operation state acquisition unit for acquiring information on the operation state of the vacuum evaporation type water generator; and The abnormality detection unit detects the abnormality of the vacuum evaporation type water generator based on the information acquired by the operation state acquisition unit. The management device according to claim 1, further comprising a control unit; when the abnormality is detected, the control unit controls the vacuum evaporative water generator to resolve the abnormality. The management device according to claim 1 or 2, further comprising a prompting part; when the abnormality is detected, the prompting part prompts the user of the vacuum evaporation type water generating device a method for removing the abnormality. The management device according to claim 1 or 2, wherein the abnormality is that the amount of fresh water produced is insufficient. The management device according to claim 1 or 2, wherein the abnormality is that the salt concentration of the fresh water is too high. The management device according to claim 1 or 2, wherein the abnormality is the adhesion of scale contained in the seawater in the vacuum evaporation type water generator. The management device according to claim 1 or 2, wherein the vacuum evaporation type water generator is provided with: A heater that heats the raw seawater and generates steam by cooling the jacket cooling water of the ship's internal combustion engine; and The condenser cools the steam generated in the heater by cooling seawater and generates fresh water. A management method, which is a management method of a vacuum evaporative water-generating device for producing fresh water from seawater, characterized by having: The operation state obtaining step is to obtain information about the operation state of the vacuum evaporative water generator; and The abnormality detection step detects the abnormality of the vacuum evaporation type water generator based on the information obtained in the operation state obtaining step. A computer program for managing a vacuum evaporative water generator, the program is loaded into a computer to execute and manage a vacuum evaporative water generator for producing fresh water from seawater; after the program is executed, it has: The operation state obtaining unit obtains information about the operation state of the vacuum evaporation type water generator; and The abnormality detection unit detects the abnormality of the vacuum evaporation type water generator based on the information acquired by the operation state acquisition unit.

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