KR102468798B1 - Fresh water generation device - Google Patents

Abstract

(Problem) The present invention provides a fresh water generator with improved water generation efficiency.
(Means of solution) A heater 10 for generating steam by heating the liquid to be treated and a condenser 50 for condensing the steam generated in the heater 10 are provided, and the heater 10 includes a container body 11 is partitioned by a partition plate 14 to form a plurality of heating chambers 20 and 30, wherein each heating chamber 20 and 30 includes a plurality of heat transfer tubes 21 and 31, respectively. It is configured to heat the liquid to be treated introduced into the heat transfer tubes 21 and 31 by the heating fluid introduced to the outside of the heat transfer tubes 21 and 31, and hot water is supplied to the heating chamber 20 at the front end. is introduced as a heating fluid into the heating chamber 30 at the rear stage as a heating fluid.

Description

Fresh water generator {FRESH WATER GENERATION DEVICE}

The present invention relates to a water generator.

As water generators, those for land use and those for ships are known. In marine water generators, steam from a boiler mounted on a ship or cooling water from a diesel engine is used as a heat source. It has conventionally been performed to produce fresh water by evaporating seawater. As a conventional water generator, a configuration disclosed in, for example, Patent Literature 1 is known.

As shown in FIG. 13, in this multi-effect water generator 100, the inside of the airtight container 101 is partitioned by a partition plate 102, and the first evaporation chamber 103 ) and the second evaporation chamber 104 are formed, and the heaters 105 and 106 having a plurality of heat transfer pipes 105a and 106a are formed under the first evaporation chamber 103 and the second evaporation chamber 104, respectively. It is installed.

Steam supplied as a heat source passes through the inside of the heat transfer pipe 105a of the heater 105 of the first evaporation chamber 103, heats the seawater supplied to the first evaporation chamber 103, and evaporates. let it The steam generated in the first evaporation chamber 103 passes through a demister 107 disposed above the first evaporation chamber 103, and then passes through a duct 108 to the second evaporation chamber. It is supplied to the heater 106 of (104) and passes through the inside of the heat transfer pipe 106a of the heater 106 to heat and evaporate the seawater supplied to the second evaporation chamber 104. Steam generated in the second evaporation chamber 104 passes through the demister 109 disposed above the second evaporation chamber 104 and is introduced into the condenser 110 . The support of the demisters 107 and 109 inside the sealed cylinder 101 is, for example, as disclosed in Patent Document 2, a coupling piece protruding from the inner wall surface of the sealed cylinder 101. It is common to support the circumferential edges of the demisters 107 and 109 by means of a joint.

In the condenser 110, a plurality of heat transfer tubes are divided into a group of heat transfer tubes 112 for condensation and a group of heat transfer tubes 113 for heating by a partition plate 111. The steam generated in the second evaporation chamber 104 is cooled by the seawater passing through the condensation heat transfer pipe 112 to become condensed water and is discharged from the outlet 114 at the bottom. A part of the seawater heated through the inside of the condensation heat pipe 112 is supplied to the inside of the heating heat pipe 113 and heated by the steam generated in the first evaporation chamber 103, and then the seawater supply port 115 ) into the first evaporation chamber 103 and heated by the heater 105 as described above.

: Japanese Unexamined Patent Publication No. 6-254534 : Japanese Public Utility Model Publication No. 60-124621

In recent years, the amount of waste heat of jacket cooling water has tended to decrease due to the miniaturization and high efficiency of diesel main engines, while water on board Since the demand tends to increase in order to strengthen exhaust gas regulation measures, highly efficient fresh water generators are required.

However, although the conventional multi-effect water generator 100 is of a multi-effect type, high efficiency is achieved. However, steam as a heat source supplied to the first evaporation chamber 103 is supplied to the inside of the heat transfer pipe 105a of the heater 105. Since it is a configuration introduced as a , there was a problem that the device was enlarged to secure the necessary amount of tidal water, and it was easy to install it in a ship.

Accordingly, an object of the present invention is to provide a water generator with improved water generation efficiency.

The above object of the present invention is to provide a heater for generating steam by heating a liquid to be treated, and a condenser for condensing the steam generated in the heater, wherein the heater has a plurality of parts in which the inside of the container body is partitioned by a partition plate. A fresh water generator having a heating chamber, wherein each heating chamber includes a plurality of heat transfer tubes, and is configured to heat a liquid to be treated introduced into the heat transfer tubes by a heating fluid introduced outside the heat transfer tubes. In the heating chamber at the front stage, hot water is introduced as a heating fluid, and in the heating chamber at the rear stage, vapor of the liquid to be treated generated in the heating chamber at the front stage by heating with the hot water is used as a heating fluid. (i.e., steam of the liquid to be treated generated by introducing hot water as a heating fluid into the heating chamber at the previous stage is introduced as a fluid for heating into the heating chamber at the rear stage).

In this fresh water generator, it is preferable that the heater includes a closing plate for sealing the opening of the container body, and a plurality of the heat transfer tubes are disposed so as to pass through the closing plate, and the closing plate comprises the partition plate. It is preferable to be detachably fixed to the end face of the gasket with a gasket therebetween. In this configuration, a frame connected to the heater through the closing plate and supporting the condenser may be further provided. It is preferable that the interior of the frame is divided by partition walls so that a plurality of jet separation chambers corresponding to the respective heating chambers are formed, and the partition wall covers the coupler with an end face sandwiching a gasket therebetween. It is preferable to be placed.

A reinforcing member disposed in the heating chamber on the rear end side with the partition plate interposed therebetween and reinforcing the partition plate from the inside may be provided. It is preferable that the reinforcing member is arranged so as to divide the flow of the heating fluid in the heating chamber at the rear end side.

A retention portion installed on an outer circumferential surface of the container body may be further provided. The retaining portion is configured so that the inner space communicates with the heating chamber at the rear end through a communication portion formed on the side wall of the container body, and the heating fluid introduced into the retaining portion collides with the outer circumferential surface of the container body. desirable.

It is preferable that the flow path of the heating fluid formed in the heating chamber at the rear stage gradually narrows from the upstream side toward the downstream side.

[0003] However, in a fresh water generator, it is an issue to keep the purity of generated condensate at a good level while achieving cost reduction. As a means to solve this problem, a heater for generating steam by heating the liquid to be treated, a frame having a demister for removing droplets contained in the steam generated by the heater, and a condenser for condensing the vapor from which the droplets are removed are provided. As a fresh water generator, the demister may provide a water generator in which the heater or the condenser is supported by a support member fixed to a portion of the frame where the heater or the condenser is accommodated.

In this fresh water generator, the support member preferably has a shape in which a belt-shaped member is bent or curved, and preferably supports the demister at an edge portion in the width direction. It is more preferable that the support member is curved in a U shape. The condenser may be disposed to pass through the inner center of the frame. In this configuration, it is preferable that the support members are respectively provided on both sides of the condenser.

According to the present invention, it is possible to provide a fresh water generator with improved water generation efficiency.

1 is a longitudinal sectional view of a fresh water generator according to a first embodiment of the present invention.
Fig. 2 is a plan view showing main parts of the fresh water generator shown in Fig. 1;
Fig. 3 is an enlarged sectional view showing other main parts of the fresh water generator shown in Fig. 1;
Fig. 4 is a plan view showing another main part of the fresh water generator shown in Fig. 1;
Fig. 5 is a side view showing another main part of the fresh water generator shown in Fig. 1;
Fig. 6 is a plan view of a main part of a fresh water generator according to another embodiment of the present invention.
Fig. 7 is a longitudinal sectional view of a fresh water generator according to still another embodiment of the present invention.
Fig. 8 is a longitudinal sectional view of a fresh water generator according to still another embodiment of the present invention.
Fig. 9 is a longitudinal sectional view showing a main part of a fresh water generator according to still another embodiment of the present invention.
Fig. 10 is a longitudinal sectional view showing a main part of a fresh water generator according to still another embodiment of the present invention.
Fig. 11 is a longitudinal sectional view showing main parts of a fresh water generator according to still another embodiment of the present invention.
Fig. 12 is a longitudinal sectional view showing a main part of a fresh water generator according to still another embodiment of the present invention.
Fig. 13 is a longitudinal sectional view of a conventional water generator.

Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings. 1 is a longitudinal sectional view of a fresh water generator according to a first embodiment of the present invention. The fresh water generator 1 of the present embodiment is a double effect type, and includes a heater 10 that heats a liquid to be treated to generate steam, and a heater 10 ) and a condenser 50 which is supported so as to pass through the inner center of the frame 40 and the central portion accommodated in the frame 40.

In the heater 10, the lower opening and the upper opening of the cylindrical container body 11 are connected to the bottom plate 12 and the closing plate 13, respectively. A closed space is formed inside by being covered by. The inside of the container body 11 is partitioned by a partition plate 14 extending vertically, and a first heating chamber 20 and a second heating chamber 30 are formed.

A plurality of holes are formed in the bottom plate 12 and the closing plate 13, respectively, and a plurality of heat transfer tubes 21 and 31 extending vertically so as to pass through these holes are provided in the first heating chamber ( 20) and the second heating chamber 30, respectively.

A seawater inlet (15) is connected to the bottom side of the bottom plate (12). The seawater introduction unit 15 is formed in a tray shape, and the interior is divided by a partition plate 15a to form a first introduction chamber 15b and a second introduction chamber 15c. The first introduction chamber 15b and the second introduction chamber 15c communicate with the lower ends of the heat transfer tubes 21 and 31, respectively, so that liquid to be treated such as seawater introduced through the introduction ports 15d and 15e passes through the heat transfer tubes 21 , 31) rises into the interior.

Supply ports 23 and 33 and discharge ports 24 and 34 are formed on side walls of the first heating chamber 20 and the second heating chamber 30, respectively. The heating fluid supplied from the supply ports 23 and 33 passes through the outside of the heat transfer tubes 21 and 31 and is discharged from the outlet ports 24 and 34 . Inside the first heating chamber 20 and the second heating chamber 30, baffle plates 25 and 35 for meandering the flow path of the heating fluid are installed, respectively. The baffle plates 25 and 35 are held at a predetermined height by a tubular spacer (not shown) coupled to the outside of the heat transfer tubes 21 and 31 .

The frame 40 is a tubular member having a larger diameter than the diameter of the heater 10, and has an opening 41 formed therein, and an upper part covered by a cover plate 42. The peripheral edge of the opening 41 is connected to the peripheral edge of the closing plate 13 so that the frame 40 is sealed.

The inside of the frame 40 is partitioned by a partition wall composed of a lower partition wall 43 and an upper partition wall 44, and the first jet water separation chamber室) (60) and a second steam separation chamber (第2气水分離室) (70) are formed. The first jet water separation chamber 60 and the second jet water separation chamber 70 include air water separation plates 61 and 71 installed directly above the heat transfer pipes 21 and 31, and a water separation plate 61 , 71) is provided with demisters 62 and 72 disposed above. The demisters 62 and 72 are known members in which mesh plates are stacked, and the lower surface side is supported by support members 63 and 73 attached to the condenser 50.

Steam outlets 64 and 74 through which generated steam is discharged are formed at the upper portions of the first steam separation chamber 60 and the second steam separation chamber 70, respectively. In addition, drain ports 65 and 75 through which the liquid separated from the steam is discharged are formed in the lower portions of the first steam separation chamber 60 and the second steam separation chamber 70, respectively.

The condenser 50 is arranged so as to extend horizontally, and the inside is partitioned by the upper partition wall 44, and is made of a corrosion-resistant material such as stainless steel. ), and a plurality of heat transfer pipes 52 accommodated on both sides of the upper partition wall 44 along the accommodating member 51, and on the side of the first rider separation chamber 60 with the upper partition wall 44 as the center. A preheater 55 composed of arranged heat transfer tubes 52 is built-in. At both ends of the heat transfer pipe 52, headers (not shown) are provided at positions protruding outward from the frame 40. A portion of the liquid to be treated such as seawater introduced into the condenser 50 is introduced into the first introduction chamber 15b from the inlet 15d through the preheater 55, while the remainder discharged as drainage.

In the fresh water generator 1 having the above configuration, after the seawater as the target liquid supplied to the condenser 50 condenses the steam in the second steam separation chamber 70, a portion of the seawater is preheated by the preheater 55. is introduced into the first introduction chamber 15b, and passes through the inside of the heat transfer pipe 21 disposed in the first heating chamber 20.

In the first heating chamber 20, hot water that can be used on site, such as jacket cooling water of a diesel main engine mounted on a ship, is used as a heating fluid. It is supplied from the supply port 23 and discharged from the discharge port 24 via a flow path formed by the baffle plate 25. Accordingly, seawater passing through the heat transfer tube 21 is heated, evaporated in the heat transfer tube 21, and introduced into the first water separation chamber 60.

In the steam introduced into the first steam separation chamber 60, after the mixed liquid droplets are separated by the steam separation plate 61 and the demister 62, some of the steam is transferred to the heat transfer pipe of the preheater 55. It is condensed by the seawater passing through 52 and recovered as fresh water. The seawater separated from the steam in the first steam separation chamber 60 is discharged from the drain port 65 and introduced into the second introduction chamber 15c and passes through the inside of the heat transfer pipe 31 disposed in the second heating chamber 30. pass

Steam remaining in the first steam separation chamber 60 is discharged from the discharge port 64 and supplied as a heating fluid to the supply port 33 of the second heating chamber 30, and then the baffle plate It is discharged from the outlet 34 via the passage formed by 35 and is recovered as fresh water. Accordingly, the seawater passing through the heat transfer tube 31 is heated and evaporated in the heat transfer tube 31 to be introduced into the second water separation chamber 70 .

In the steam introduced into the second steam separation chamber 70, after the mixed liquid droplets are separated by the steam separation plate 71 and the demister 72, some of the steam passes through the heat transfer tube 52 in the condenser 50 It is condensed by seawater passing through and recovered as fresh water. The seawater separated from the steam in the second steam separation chamber 70 is discharged from the drain port 75 and recovered as brine. The steam remaining in the second steam separation chamber 70 is extracted by an ejector (not shown) or the like connected to the discharge port 74 .

In the fresh water generator 1 of the present embodiment, liquid to be treated, such as seawater, is introduced into the heat transfer pipes 21 and 31 provided in the first heating chamber 20 and the second heating chamber 30, respectively, and In addition to evaporation, since hot water can be introduced into the first heating chamber 20 as a heating fluid to generate condensed water using low-temperature waste heat, the water generator 1 can be downsized and highly efficient.

In the water generator 1 of this embodiment, since the heating fluid in the second heating chamber 30 is steam while the heating fluid in the first heating chamber 20 is hot water, for example, the first heating chamber Compared to the internal pressure of 20 being 0.5 MPa, the internal pressure of the second heating chamber 20 is -0.1 MPa, and the pressure difference between the two sides of the partition plate 14 is large. do. In this situation, when the closing plate 13 is detachably installed on the container body 11, the partition plate 14 is closed by bending due to the internal pressure difference of steam. A gap is generated between the plate 13 and the partition plate 14, and seawater enters the second heating chamber 30 from the first heating chamber 20 through this gap, and the second heating chamber 30 ), there is a possibility of lowering the purity of the steam introduced.

Therefore, in this embodiment, as shown in Fig. 2, a plurality of bolt holes 14a are provided at equal intervals on the upper end surface of the partition plate 14 integrally formed with the container body 11. formed, and the bolt holes 14a of the partition plate 14 together with the plurality of bolt holes 11a formed in the circumferential flange portion of the container body 11 are used for connection with the closing plate 13 By doing so, the above problem is solved. That is, as shown in FIG. 3, bolt holes 13a and 14a are formed in the closing plate 13 and the partitioning plate 14, respectively, and the closing plate 13 is secured by a connector 16 such as a bolt. , It is fixed to the upper surfaces of the container body 11 and the partition plate 14 with a gasket 14b interposed therebetween. In this way, by detachably connecting the closing plate 13 and the partition plate 14 by the connector 16, while maintaining good maintainability, it is possible to prevent gaps from occurring due to deformation of the partition plate 14. It can definitely be prevented. In addition, the bottom plate 12 and the bottom surface of the partition plate 14 may be integrally fixed by welding or the like, or may be detachable like the connection structure of the closing plate 13 and the partition plate 14 described above. It may be possible to connect

As shown in FIG. 1, the lower partition wall 43 installed inside the frame 40 is installed so as to descend from the lower surface of the housing member 51 of the condenser 50, and the lower partition wall 43 The lower surface of is in contact with the upper surface of the closing plate (13). As shown in FIG. 3, a gasket 43a is interposed between the frame 40 and the lower partition wall 43 and the closing plate 13, and the connector inserted into the bolt hole 13a of the closing plate 13 ( 16) is covered by the lower surface of the lower partition wall 43. To prevent protrusion of the fitting 16 from the upper surface of the closing plate 13, the fitting 16 is preferably a low-head bolt. With this configuration, the connection state of the closing plate 13 and the partition plate 14 by the connector 16 can be maintained more reliably.

Fig. 4 is a plan view of the frame 40, showing a state in which the cover plate 42 is removed. 5 is a side view of the supporting member 63 attached to the receiving member 51. As shown in FIGS. 4 and 5, the frame 40 includes a plurality of brackets horizontally protruding toward the first nose separation chamber 60 from one side wall of the horizontally extending housing member 51 ( bracket) 66 is fixed by welding or the like. To the plurality of brackets 66, both ends of the belt-shaped support members 63 are attached to the brackets 66 with screws 66a, respectively. The supporting member 63 is fixed in a direction in which the width direction becomes the vertical direction. The demister 62 has a shape and size that occupies the entire space between the inner wall surface of the frame 40 and the side wall of the housing member 51, and has a curved shape in plan view. It is mounted on the edge in the width direction.

A plurality of brackets 76 protruding horizontally toward the second aircraft separation chamber 70 are fixed to the other side wall of the accommodating member 51 by welding or the like, and like the support member 63 described above, a U-shape is formed. Both ends of a band-shaped support member 73 bent into a shape are attached to brackets 76, respectively.

In this way, by configuring the whole of the demisters 62 and 72 to be supported only by the support members 63 and 73 attached to the condenser 50, the demisters 62 and 72 are formed on the inner wall surface of the frame 40. ) is unnecessary. Therefore, since the protrusions for supporting the demisters 62 and 72 do not exist on the inner wall surface of the frame 40, work efficiency at the time of assembling can be improved. The frame 40 is formed using an inexpensive material such as SS400, and corrosion-resistant coating can be easily applied to the inner wall surface, so that both cost reduction and durability can be achieved.

In addition, since the support members 63 and 73 are attached to the condenser 50, it is difficult for the demisters 62 and 72 to fall off from the center side, and the demisters 62 and 72 are further attached to the support members 63 and 73. I can definitely support you. In addition, since the demisters 62 and 72 are supported in a linear shape by the edges of the band-shaped support members 63 and 73, it is possible to stably support the demisters 62 and 72 while securing a steam passage area. . The support structure of the demisters 62 and 72 of this embodiment is particularly effective when the frame 40 is downsized and the installation space of the demisters 62 and 72 is narrow.

The shape of the support members 63 and 73 is preferably U-shaped as in the present embodiment from the viewpoint of reliably supporting the entirety of the demisters 62 and 72, but may be made in various shapes such as polygonal and wavy shapes. It can be set as a bent or curved shape.

Further, in the conventional fresh water generator disclosed in Patent Document 2, the periphery of the demister is supported by an engaging piece protruding from the inner wall surface of the sealed cylinder. In such a demister support structure, since the sealed cylinder is formed of an inexpensive material with low corrosion resistance, it is necessary to apply anticorrosion coating to the inner wall surface, but it is cumbersome to cleanly paint the coupling piece, and also when attaching the internal parts, the coupling There was a problem that the side was obstructed and the workability was poor. In addition, the demister tends to fall off from the side opposite to the inner wall side of the hermetically sealed cylinder supported by the coupling piece, and since gas-liquid separation cannot be performed stably, the purity of the condensed water may be reduced.

In the above, although one embodiment of the present invention was described in detail, the specific aspect of the present invention is not limited to the above embodiment. For example, in this embodiment, the partition plate 14 is detachably fixed to the end face of the partition plate 14 with the gasket 14b interposed therebetween by the coupler 16 in the present embodiment. Although it is reinforced, as shown in FIG. 6, a reinforcing member 17 is disposed in the second heating chamber 30, which is on the low pressure side with respect to the first heating chamber 20 of the container body 11. You can do it.

The reinforcing member 17 is a block-shaped member inserted between the inner wall surface of the container body 11 and the side surface of the partition plate 14, and a plurality of reinforcing members are arranged with a gap in the vertical direction. Even with this configuration, it is possible to prevent the partition plate 14 from swelling toward the second heating chamber 30 and to prevent seawater from entering the second heating chamber 30 . The reinforcing structure by the reinforcing member 17 may be combined with the connection structure of the closing plate 13 and the partition plate 14 by the connector 16 described above.

In this embodiment, the inside of the container body 11 is divided into left and right sides by installing the partition plate 14 of the container body 11 along the vertical direction, but the partition plate 14 is installed horizontally. The first heating chamber 20 and the second heating chamber 30 may be formed by dividing the inside of the container body 11 vertically.

In this embodiment, the preheater 55 incorporated in the condenser 50 is arranged in the first water separation chamber 60, but as shown in FIG. 7, the preheater 55 is Alternatively, the liquid to be treated supplied to the condenser (50) is partially preheated by the preheater (55) after condensing the steam in the second steam separation chamber (70). It is introduced into the first introduction chamber 15b, and the remainder is discharged as waste water. Alternatively, as shown in FIG. 8, the preheater 55 includes the first preheater 55a disposed in the first water separation chamber 60 and the second preheater 55b disposed in the second water separation chamber 70. However, after condensing the steam in the second steam separation chamber 70, the liquid to be treated supplied to the condenser 50 is partially preheated in the second preheater 55b and the first preheater 55a. is introduced into the first introduction chamber 15b, and the remainder is discharged as waste water.

Also, although the fresh water generator 1 of the present embodiment is of a double effect type, three or more heating chambers are formed by partitioning the container body 11 with a plurality of partition plates, and By using the generated steam as a heating fluid for a heating chamber at a later stage, a triple or more multiple effect type can be obtained. On the other hand, the configuration in which the demister is supported by a support member fixed to the condenser may be of a single effect type without a partition plate, or in either a single effect type or multiple effect type water generator, the condenser 50 It is possible to support the support member 63 using the receiving member 51 of the. The attachment position of the support member 63 to the condenser 50 does not necessarily have to be the accommodating member 51 as in the present embodiment, and may be any other position where the support member 63 can be attached.

Connection between the container body 11 and the closing plate 13 is, in this embodiment, as shown in Fig. 2, the bolt hole 11a formed in a large number in the periphery flange portion of the container body 11 with a gasket therebetween. Although this is done by inserting a connector such as a bolt in place, as shown in FIG. 9, by forming a welded portion W1 by fillet welding on the entire outer circumference of the cylindrical end of the container body 11, the container The body 11 and the closing plate 13 may be connected. Also for the connection between the container body 11 and the bottom plate 12, a welded portion W2 can be formed on the outer periphery of the tubular end portion of the container body 11. In this case, the connection between the bottom plate 12 and the closing plate 13 and the partition plate 14 can be made by means of a connector with a gasket interposed therebetween, as in the present embodiment. Alternatively, as shown in Fig. 10 (a), the closing plate 13 (or the bottom plate 12) and the partition plate 14 are formed by forming welds W3 and W4 on both sides of the partition plate 14 in the thickness direction. can be connected. Further, as shown in Fig. 10(b), a through hole 13b is formed in the closing plate 13 (or the bottom plate 12), and a welded portion W5 is formed in the through hole 13b to form the closing plate. (13) (or the bottom plate 12) and the partition plate 14 can be connected. The through hole 13b formed in the closing plate 13 is preferably formed at a position closed by a gasket 43a inserted between the lower partition wall 43 and the closing plate 13.

Since the heating fluid mainly composed of steam is introduced into the supply port 33 of the second heating chamber 30 at high speed, the heating fluid introduced between the supply port 33 and the second heating chamber 30 The heat exchange efficiency in the heat exchanger pipe 31 can be improved by inserting the retention part provided with the collision plate on which the collision occurs. However, in this configuration, the supply port 33 protrudes greatly outward from the heater 10, which may increase the size of the fresh water generator 1. Therefore, as shown in FIG. 11, a retention portion 18 fixed by welding or the like is provided on the outer circumferential surface of the container body 11, and the internal space of the retention portion 18 is a communication portion formed on the side wall of the container body 11. While communicating with the second heating chamber 30 via the (連通部) 18a, when the heating fluid is introduced from the supply port 33 to the retention section 18, the heating fluid is supplied to the container body 11. ) is preferably configured to collide with the outer circumferential surface of the According to this configuration, since the outer circumferential surface of the container body 11 serves as the aforementioned impact plate, there is no need to newly install the impact plate in the retaining portion 18, and the fresh water generator 1 is made compact. can keep it The collision site of the heating fluid on the outer circumferential surface of the container body 11 is not particularly limited, but is preferably below the communicating portion 18a.

Fig. 11 is a sectional view showing a modified example of the heater 10 shown in Fig. 9 taken along the A-A section in Fig. 9; The heating fluid introduced into the second heating chamber (30) from the supply port (33) meanders along the partition plate (14) by the baffle plates (35, 35) disposed up and down, and flows through the discharge port (34). emitted from The distance between the closing plate 13 and the upper baffle plate 35 (S1), the gap between the upper and lower baffle plates 35 and 35 (S2), and the gap between the lower baffle plate 35 and the bottom plate 12 (S3) ) is preferably S1>S2>S3. Although the number and arrangement of the baffle plates 35 in the second heating chamber 30 are not particularly limited, the heating fluid introduced from the supply port 33 gradually enters the second heating chamber 30. Since it is condensed, as in the configuration shown in FIG. 11, the flow path of the heating fluid formed in the second heating chamber 30 by the closing plate 13, a plurality of baffling plates 35 and the bottom plate 12 is formed upstream. The entire heat transfer pipe 31 can be efficiently heated by configuring so that it narrows gradually from the side toward the downstream side.

The baffle plate installed in the second heating chamber 30 can also serve as the reinforcing member 17 shown in FIG. That is, as shown in FIG. 12, gaps 17a and 17b are formed between the reinforcing member 17, the closing plate 13, and the bottom plate 12, respectively, so that the flow of the heating fluid is passed through the reinforcing member 17. can be divided up and down. In this way, by making the reinforcing member 17 function as a baffle plate, there is no need to newly install the baffle plate, and the assembly man-hour can be reduced. The division of the flow of the heating fluid by the reinforcing member 17 can be achieved by forming gaps in the left and right sides of the reinforcing member 17 or by forming a plurality of openings or grooves in the reinforcing member 17 .

Regarding the configuration in which the demister is supported by the support member, in the present embodiment, the condenser 50 is fixed to the portion where the condenser 50 is accommodated inside the frame 40, but the support members 63 and 73 are fixed to the frame 40. The support members 63 and 73 may be fixed to locations other than the inner wall surface inside the . The heater 10 or the condenser 50 may accommodate at least a portion inside the frame 40, and the heater 10 or the condenser 50 is accommodated inside the frame 40, the support member 63 , 73) may be fixed to support the demisters 62 and 72. For example, the upper part of the heater 10 shown in Fig. 1 may be extended and accommodated inside the frame 40, and the support members 63 and 73 may be fixed so as to extend upward from the outer wall surface of the accommodated portion.

1 tide system
10 heater
11 container body
13 closing plate
14 compartment plate
17 Reinforcing member
20 1st heating room
21 heat pipe
30 2nd heating room
31 heat pipe
40 frames
43 lower partition wall
44 upper dividing wall
50 condenser
51 Accommodating member
52 heat pipe
60 1st Air Separation Room
61 nose divider
62 Demister
63 support member
70 2nd Air Separation Room
71 nose divider
72 Demister
73 support member

Claims (3)

A heater that heats a liquid to be treated to generate steam, a frame installed on top of the heater, and supported by the frame, the steam generated by the heater is supplied to the liquid to be treated. Equipped with a condenser that condenses by
The heater is a water generator in which the inside of the container body is partitioned left and right by a partition plate extending vertically, and a plurality of heating chambers are formed,
Each of the heating chambers includes a plurality of heat transfer tubes extending vertically, and the liquid to be treated introduced into the heat transfer tubes is transferred to a heating fluid introduced to the outside of the heat transfer tubes. It is configured to be heated by
Into the heating chamber at the front end, hot water is introduced as a heating fluid;
Into the heating chamber at the rear stage, steam of a liquid to be treated generated in the heating chamber at the front stage by heating with hot water is introduced as a heating fluid;
The frame is connected to the heater through a closing plate that seals the opening of the container body, and the inside is divided into left and right sides by partition walls, and a plurality of the heat transfer tubes cover the closing plate. By penetrating, a plurality of steam separation chambers corresponding to the respective heating chambers are formed,
The condenser has a built-in preheater disposed in at least one of the plurality of water separation chambers, and a part of the supplied liquid to be treated is preheated by the preheater, and the heat transfer pipe of the heating chamber at the front end Tide system introduced into.
According to claim 1,
The condenser has a receiving member arranged to extend horizontally,
The partition wall includes an upper partition wall and a lower partition wall installed above and below the accommodating member, respectively.
According to claim 1 or 2,
The water generator according to claim 1 , wherein the preheater is installed only in the water separation chamber at the rear end.

Images