JP2021192899A - Distilled water production device - Google Patents

Abstract

To dispense with construction of a drainage facility, resolve a problem in use of a drainage device, and improve a device placement flexibility.SOLUTION: A distilled water production device comprises: a distillation main body having a steam generation part which stores and heats raw material water therein to generate steam; and a cooling part which cools the steam using cooling water to produce distilled water; and a drainage unit which is disposed such that the unit can be placed separately from the distillation main body and which is for discharging the raw material water stored in the steam generation part to an outside.SELECTED DRAWING: Figure 1

Description

The present invention relates to a distilled water producing apparatus for producing distilled water.

A distilled water production apparatus is known for producing high-purity distilled water with less contamination for use in experiments and the like (see, for example, Patent Document 1). This distilled water production apparatus is supplied with water from a water pipe 96, for example, as shown in FIGS. 11 and 12, and follows a flow of water indicated by an arrow in the figure, for example, a pressure reducing valve 97 having a pressure switch 97a, a pretreatment cartridge. 98, an ion exchange resin cartridge 99, an ion exchange water quality meter electrode 114, a flow sensor 107, and a boiler (steam generator) 91 that heats raw material water for distillation supplied through a boiler water supply electromagnetic valve 108 to generate steam. Be prepared.

Further, the distilled water production apparatus is provided above the boiler 91, introduces steam from the boiler 91, and is cooled by cooling water supplied through, for example, a water pipe 96, a pressure reducing valve 97, and a cooling water electromagnetic valve 106. A condenser (cooling unit) 92 for obtaining pure water (distilled water) is provided. The boiler 91 and the condenser 92 are provided inside the housing 90, and the pure water obtained by the condenser 92 is once stored in the distilled water tank 112 and then collected through a water sampling unit 93 as needed. Water is done.

In such a distilled water producing apparatus, the raw material water inside the boiler 91 gradually increases in the impurity concentration as the distillation progresses, so that the raw material water is periodically maintained in the optimum state so that the water quality of the distilled water is maintained in the optimum state. Need to be drained. The drainage of the raw material water of the boiler 91 is performed, for example, through a drain valve 109, a drain pipe 113, and a drain hose 113a provided below the boiler 91. In the drain pipe 113, for example, the drainage of the cooling water from the condenser 92, the drainage of the initial distillate through the solenoid valve 111 for the initial distillate drainage, and the drainage from the water level adjusting tank 110 can be mixed.

As for the drainage of the raw material water, since the drop of the raw material water by its own weight is generally used, the drainage position of the boiler 91 is higher than the position of the drainage port 94a of the drainage facility 94 in the distilled water production apparatus. For example, it is arranged above the installation equipment such as the installation base 95 which can earn a height higher than the drainage equipment 94.

On the other hand, due to the convenience of the installation equipment of the distilled water production apparatus, when it is installed at a low position such as on the floor, the position of the drainage port 94a of the drainage facility 94 may be higher than the drainage position of the boiler 91. In this case, it may be possible to separately construct a drainage facility 94 to adjust the height, but in many cases it is not possible to construct it, and another method of using a drainage device such as an electromagnetic pump or a magnet pump. Can also be considered.

Jikkai Sho 59-61895

However, when using a drainage device, selecting a heat-resistant specification in consideration of the drainage temperature will be expensive, and depending on the device configuration, priming for drainage may be required, resulting in installation. There is a problem that it is difficult to adopt the method using a drainage device because there is a concern that not only the cost of drainage will increase but also the drainage time will be long.

In addition, if the construction of the drainage facility 94 is not possible, it may be difficult to install the distilled water production device in the first place, or it may be possible to install it only in a very limited place. Will be. In such a case, even if there is a place where it can be installed, it may be installed in a place that is inconvenient for the user, so there is a concern that the convenience (productivity) will be significantly reduced. Further, there is also a need for effective use of empty space such as the space below the installation table 95 and space saving of the entire installation equipment. As described above, in the distilled water production apparatus of the prior art disclosed in Patent Document 1, various problems exist regarding the installation of the apparatus.

The present invention has been made in view of the above circumstances, and it is not necessary to construct a drainage facility, solve problems when using a drainage device, and improve the degree of freedom in installing the device. The purpose is to provide water production equipment.

The distilled water production apparatus according to the present invention has a distillation unit having a water vapor generating unit that stores raw water inside and heats it to generate steam, and a cooling unit that cools the water vapor with cooling water to produce distilled water. It is characterized by being provided with a main body portion and a drainage unit which is provided so as to be separable from the distillation main body portion and for discharging the raw material water stored in the water vapor generating portion to the outside.

In one embodiment of the present invention, the drainage unit drains mixed water obtained by mixing the raw material water with the cooling water that has passed through the cooling unit.

In another embodiment of the present invention, the drainage unit is configured to be dispositionable at a position higher than the drainage position of the steam generating portion.

In still another embodiment of the present invention, the drainage unit includes a closed chamber into which the raw water can be introduced, a negative pressure pump that creates a negative pressure state in the internal space of the closed chamber, and the inside of the closed chamber. An air release valve capable of communicating the space with the outside air and the cooling water are allowed to flow, the raw material water is sucked from the inside of the closed chamber, the raw material water is mixed with the cooling water, and the mixed water is discharged. Has an aspirator.

In still another embodiment of the present invention, the drainage unit has a partition plate that divides the internal space of the housing into an upper space and a lower space, and the closed chamber is arranged in the upper space, and the negative pressure pump, the negative pressure pump. Of the atmosphere release valve and the aspirator, at least the aspirator is arranged in the lower space.

The aspirator includes a first introduction port for introducing the cooling water into the inside, a second introduction port for sucking the raw material water inside, and a discharge port for discharging the mixed water, and the drainage. The unit is configured to be able to adjust the suction amount of the raw material water and the drainage temperature of the mixed water according to the separation distance between the second introduction port and the closed chamber and the flow velocity of the cooling water.

In still another embodiment of the present invention, the drainage unit comprises a closed chamber into which the raw water can be introduced, a first pressurizing pump for applying pressure to the internal space of the closed chamber, and the closed chamber. An air release valve capable of communicating the internal space with the outside air and the raw material water pumped from the inside of the closed chamber by allowing the cooling water to flow are mixed, and the raw material water is mixed with the cooling water and the mixing is performed. It has an aspirator that drains water.

In still another embodiment of the present invention, the drainage unit comprises a closed chamber into which the raw water can be introduced, a first pressurizing pump for applying pressure to the internal space of the closed chamber, and the closed chamber. An air release valve capable of communicating the internal space with the outside air and the raw material water pumped from the inside of the closed chamber by introducing the cooling water are merged, and the raw material water is mixed with the cooling water to mix water. It has a three-pronged pipe for discharging and a first check valve installed between the closed chamber and the three-pronged pipe.

In still another embodiment of the present invention, the distillation body portion has a second pressurizing pump that applies pressure to the internal space of the steam generating portion, and the drainage unit is from the draining position of the steam generating portion. Is configured to be able to be placed at a high position.

In still another embodiment of the present invention, a second check valve installed between the distillation body and the drainage unit is further provided.

According to the present invention, it is possible to solve the problem of using the drainage device without the need for the construction of the drainage facility and to improve the degree of freedom in installing the drainage device.

It is explanatory drawing which shows schematic the installation example of the distilled water production apparatus which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows outline the internal structure of the drainage unit of the distilled water production apparatus. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus. It is a figure which shows the result of the verification experiment of the drainage time and the drainage temperature in the same distilled water production apparatus. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus which concerns on 2nd Embodiment of this invention. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus which concerns on the modification of 2nd Embodiment of this invention. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus which concerns on 3rd Embodiment of this invention. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus which concerns on the modification of 3rd Embodiment of this invention. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus which concerns on 4th Embodiment of this invention. It is explanatory drawing which shows schematic the whole internal structure of the distilled water production apparatus which concerns on the modification of 4th Embodiment of this invention. It is explanatory drawing which shows the installation example of the conventional distilled water production apparatus schematically. It is explanatory drawing which shows schematic the whole internal structure of the conventional distilled water production apparatus.

Hereinafter, the distilled water production apparatus according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the means for solving the invention. .. Further, in the drawings of the embodiments of the present specification, the scale and dimensions of each component may be exaggerated or some components may be omitted.

[First Embodiment]
FIG. 1 is an explanatory diagram schematically showing an installation example of the distilled water production apparatus 100 according to the first embodiment of the present invention, and FIG. 2 schematically shows the internal configuration of the drainage unit 20 of the distilled water production apparatus 100. An explanatory diagram and FIG. 3 are diagrams schematically showing the overall internal configuration of the distilled water production apparatus 100. As shown in FIG. 1, the distilled water production apparatus 100 of the first embodiment is installed at a predetermined installation location such as a laboratory, and has a distillation main body 10 for producing distilled water and the distillation thereof. It includes a drainage unit 20 separately installed (separately arranged) from the main body 10. Since the specific structure and configuration of the distilled water production apparatus 100 are known, the description thereof will be omitted here except for the parts requiring explanation.

The distillation main body 10 is installed on the side of the installation table 105 having a predetermined height, for example, and the drainage unit 20 is installed on the upper surface of the installation table 105, for example. As described above, in the distilled water production apparatus 100, the drainage unit 20 is installed at a position higher than the drainage position of the steam generating unit 30 (see FIG. 3) described later in the distillation main unit 10 (hereinafter referred to as “high place installation”). It may also be referred to.) It is configured to be possible.

The distillation main body 10 and the drainage unit 20 are connected to each other by a pipe 39 including a drainage pipe 39a and a cooling water pipe 39b. Further, the drainage facility 104 having the drainage port 104a into which the drainage from the drainage unit 20 flows is installed, for example, on the side of the installation table 105 on the opposite side of the distillation main body 10.

As shown in FIG. 3, the distillation main body 10 of the distilled water production apparatus 100 is supplied with water from the water pipe 96 or the like, and the pretreatment cartridge 50, the ion, is supplied directly through the pressure reducing valve 44 having the pressure switch 44a, or through the pressure reducing valve 44. Steam generated by storing and heating the raw water supplied through the exchange resin cartridge 51, the ion exchange water water quality meter electrode 52, the flow sensor 53, the boiler water supply electromagnetic valve 54, and the supply path 55. It has a part 30. Further, the distillation main body 10 is connected to the downstream side of the steam generating section 30 and arranged above, and the generated steam is cooled by using the cooling water supplied through the pressure reducing valve 44 and the cooling water electromagnetic valve 45. It has a cooling unit 40 for obtaining distilled water in which water vapor is condensed.

The steam generating unit 30 has a steam generating unit main body 31 having an internal space capable of accommodating the raw material water inside, and a heater 32 arranged in the steam generating unit main body 31 to heat the raw material water. The steam generating unit 30 is provided with, for example, a water level adjusting tank 57 provided with a float switch for adjusting the amount of raw material water (water level) in the steam generating unit main body 31, and the water level adjusting tank 57 and the steam generating unit main body. A supply path 55 for supplying raw water is connected to each of the 31.

A connecting pipe 31a connected to the cooling unit 40 in a state of communicating with the cooling unit 40 is formed above the steam generating unit main body 31, and the connecting pipe 31a is a connection extending below the cooling pipe 41 of the cooling unit 40 described later. It is connected to the pipe 41a. A splash preventer 31b is provided at the upper end of the connecting pipe 31a to prevent splashes of raw water boiled by heating of the heater 32 from being mixed into the cooling section 40. Further, below the steam generating unit main body 31, a drainage solenoid valve 33 that is opened and closed to drain the raw material water in the steam generating unit main body 31 is provided.

The cooling unit 40 has a cooling pipe 41 that cools and liquefies the water vapor flowing inside. Inside the cooling pipe 41, a serpentine pipe 42 arranged along the flow direction of water vapor is provided. As shown in the figure, the cooling pipe 41 is arranged so as to extend diagonally downward slightly toward the downstream side in the flow direction of water vapor.

The connection pipe 41a described above is formed in the vicinity of the upstream end of the bottom surface of the cooling pipe 41, and is connected to the connection pipe 31a from the steam generating unit main body 31. As a result, the steam generating unit main body 31 communicates with the cooling pipe 41, so that the generated steam can flow toward the cooling pipe 41.

Further, a collection hole (not shown) is formed in the vicinity of the downstream end of the bottom surface of the cooling pipe 41, and this collection hole is connected to the distilled water tank 59 through the distilled water quality meter electrode 61 and the pipe 59a. ing. Therefore, the distilled water in which water vapor is liquefied flows into the pipe 59a from the collection hole through the distilled water quality meter electrode 61, and is collected and stored in the distilled water tank 59. The initial distilled water is discharged from the distilled water quality meter electrode 61 to the drainage pipe 39a via the initial distilled water drainage solenoid valve 58. The specific resistance of the produced distilled water is measured by a distilled water water quality meter electrode 61 interposed between the collection hole and the distilled water tank 59, and the water quality is checked.

Further, a gas discharge hole 56 for discharging the low boiling point gas flowing in the cooling pipe 41 to the outside air is formed in the vicinity of the downstream end portion of the upper surface of the cooling pipe 41. The outgassing hole 56 may be connected to an atmospheric release valve 43 (see FIG. 7 and the like). Therefore, the internal space of the cooling pipe 41 can communicate with the outside air through the gas discharge hole 56 and the atmosphere release valve 43.

In the serpentine pipe 42 arranged in the cooling pipe 41, the cooling water supplied through the pressure reducing valve 44 and the cooling water solenoid valve 45 as described above flows from the downstream side to the upstream side of the cooling pipe 41 (that is, the flow of water vapor). It is supplied so as to flow in the direction opposite to the direction), and cools the water vapor flowing in the cooling pipe 41. As a result, water vapor is liquefied in the cooling pipe 41 to produce distilled water. The cooling water flowing in the serpentine pipe 42 flows through the cooling water pipe 39b and the check valve 46 and is supplied to the drainage unit 20.

On the other hand, as shown in FIGS. 2 and 3, the drainage unit 20 of the distilled water production apparatus 100 is a raw material water (hereinafter, “boiler”) that has passed through the drainage electromagnetic valve 33 and the drainage pipe 39a from the inside of the steam generating unit main body 31. It has a closed chamber 21 into which water can be introduced, and a negative pressure pump 22 that evacuates the internal space of the closed chamber 21 to bring it into a negative pressure state.

Further, the drainage unit 20 introduces the air-opening valve 23 capable of communicating the internal space of the closed chamber 21 with the outside air and the cooling water supplied from the cooling water pipe 39b from the first introduction port 24a and flows into the inside. It has an aspirator 24 that sucks the boiler water in the closed chamber 21 into the inside through the second introduction port 24b due to the venturi effect.

The aspirator 24 mixes the boiler water sucked through the second introduction port 24b with the cooling water flowing inside to generate mixed water, and the mixed water is connected to the drain port 24c in the drain pipe 38. It is discharged (drained) to the drain port 104a of the drainage facility 104 installed outside the drainage unit 20 through (see FIG. 1).

As shown in FIG. 2, the drainage unit 20 has, for example, a partition plate 25A that divides the internal space of the housing 25 into an upper space 20a and a lower space 20b. For example, a closed chamber 21 and an atmospheric release valve 23 are arranged in the upper space 20a. For example, a negative pressure pump 22 and an aspirator 24 are arranged in the lower space 20b.

In the drainage unit 20, at least the closed chamber 21 may be arranged in the upper space 20a, and at least the aspirator 24 may be arranged in the lower space 20b. Therefore, the negative pressure pump 22 and the atmospheric release valve 23 can be arranged in either the upper space 20a or the lower space 20b. Then, the aspirator 24 is arranged at a position away from the partition plate 25A so that the second introduction port 24b faces the upper space 20a, for example. As a result, a predetermined straight line (shortest) separation distance h is secured between the closed chamber 21 and the second introduction port 24b.

As an example, the dimension of the separation distance h can be set as follows. That is, when the width (horizontal dimension) of the housing 25 is 250 mm, the depth (vertical dimension) is 150 mm, and the height dimension is 270 mm, if the partition plate 25A is installed at a position of 110 mm or more from the bottom, the separation distance h can be 110 mm. In this case, the closed chamber 21 may be configured with a size of, for example, a width of 200 mm, a depth of 120 mm, and a height of about 80 mm.

In the distilled water production apparatus 100 configured in this way, drainage is performed by the drainage unit 20 as follows. First, when distilled water is being produced in the distillation main body 10, the negative pressure pump 22 is stopped, the atmosphere release valve 23 is opened, and the aspirator 24 is connected from the first introduction port 24a through the cooling pipe 39b. The cooling water supplied to the inside is drained so as to be constantly discharged from the drain port 24c.

Next, when the production of distilled water is stopped in the distillation main body 10, the drainage electromagnetic valve 33 is opened in the steam generation part main body 31 of the steam generation part 30, and at the same time, the atmosphere release valve 23 is closed and the negative pressure is applied. The pump 22 is operated to draw boiler water into the closed chamber 21 to supply a predetermined amount of liquid. At this time, since the aspirator 24 is in a state where the cooling water is always flowing from the first introduction port 24a toward the discharge port 24c, the fluid flows toward the closed chamber 21 on the second introduction port 24b side. The aspirator 24 functions as a check valve.

Then, when a predetermined amount of boiler water is stored inside the closed chamber 21, the negative pressure pump 22 is stopped, the drain solenoid valve 33 is closed, and then the atmosphere release valve 23 is opened to start drainage of the boiler water. To. That is, by opening the atmospheric release valve 23, the boiler water in the closed chamber 21 is sucked into the second introduction port 24b of the aspirator 24 by the Venturi effect and the action of dropping its own weight.

As a result, in the aspirator 24, the cooling water flowing from the first introduction port 24a is mixed with the boiler water sucked from the second introduction port 24b to generate mixed water, and the generated mixed water is generated. Drainage is performed by discharging to the outside from the drain port 24c. The drainage of the boiler water is continued until the amount stored in the closed chamber 21 is discharged.

As described above, since the distilled water production apparatus 100 of the first embodiment has a structure in which the distillation main body 10 and the drainage unit 20 can be arranged separately, the drainage of the water vapor generation part 30 of the distillation main body 10 can be arranged. Since the drainage unit 20 can be installed at a position higher than the position (for example, the position of the drainage electromagnetic valve 33) and can be freely installed in the space below the installation table 105, it is related to the drainage facility 104 and the like. It is possible to reduce the restrictions on the installation and eliminate the need for construction of the drainage facility 104 and the like. This makes it possible to improve the degree of freedom in installing the device.

Further, since it is not necessary to install or use a drainage device composed of a heat-resistant pump or a valve device for drainage for the distillation main body 10 and the drainage unit 20, various problems related to the drainage device are required. It is possible to solve the point. As described above, according to the distilled water production apparatus 100 of the first embodiment, the construction of the drainage facility 104 is unnecessary, the problem in using the drainage apparatus is solved, and the degree of freedom in installing the apparatus is improved. It is possible to make it.

Further, the drainage unit 20 is a simple operation in which the drainage unit 20 is simply connected to these pipes 39 by using the drainage pipe 39a and the cooling water pipe 39b of the existing distillation main body 10. Can be separated from the distillation main body 10 and installed at any place including a high place. Therefore, it is possible to promote effective utilization of the installation space and space saving related to the installation, including the use of the existing distilled water production equipment.

In the drainage unit 20 described above, for example, the design dimensional parameters (fluid density, cross-sectional area of the pipe before and after squeezing, pressure, flow velocity, head, etc.) of each part constituting the aspirator 24 are set to be constant. In this case, the suction amount of the boiler water and the drainage temperature of the mixed water can be appropriately adjusted according to the separation distance h between the second inlet 24b of the aspirator 24 and the closed chamber 21 and the flow velocity of the cooling water. ..

That is, as an example, the applicant applies to the separation distance h, which is the height difference between the chamber and the drain port (the height difference between the position of the closed chamber 21 and the second introduction port 24b), and the flow velocity of the cooling water. A verification experiment of the aspirator 24 was carried out for the drainage time required for draining a predetermined amount (for example, 0.8 L) of boiler water. In this verification experiment, the flow velocity (L / min) of the cooling water and the separation distance h (mm) were appropriately changed, and the drainage time of a predetermined amount of boiler water and the drainage temperature of the mixed water were measured. The temperature of the cooling water before being introduced into the aspirator 24 was 24 ° C., and the temperature of the boiler water was 64.3 ° C. The measured drainage time and drainage temperature were as shown in FIG. The time description in FIG. 4 indicates the drainage time, and the temperature description in parentheses indicates the drainage temperature.

According to this, the height difference (separation distance h) is 0 mm, 50 mm, 100 mm, 150 mm, 200 mm regardless of whether the flow velocity of the cooling water is 0.8 L / min or 2.0 L / min. It was found that the discharge time of a predetermined amount of boiler water became shorter as the size increased (longer) to 600 mm. Further, it was found that the drainage temperature was lower than 36 ° C. and greatly decreased regardless of the flow velocity of the cooling water and the separation distance h. Therefore, it can be said that the larger the height difference (separation distance h) and the faster (longer) the flow velocity of the cooling water, the shorter the drainage time can be.

[Second Embodiment]
Next, the distilled water production apparatus 100A according to the second embodiment will be described. In the description of the second and subsequent embodiments, the same components as those of the first embodiment and its modifications are designated by the same reference numerals, and thus the duplicate description will be omitted below. FIG. 5 is an explanatory diagram schematically showing the overall internal configuration of the distilled water production apparatus 100A according to the second embodiment of the present invention.

As shown in FIG. 5, the distilled water production apparatus 100A according to the second embodiment has a different configuration except for the closed chamber 21, the air release valve 23, and the aspirator 24 in the drainage unit 20A, and is distilled from the drainage unit 20A. Distillation according to the first embodiment is provided with a check valve 47 as a second check valve between the main body 10A and the main body 10A (here, the distillation main body 10A is provided). It is different from the water production apparatus 100. The check valve 47 also functions as a check valve when the initial distillate F discharged via the initial distillate drainage solenoid valve 58 is drained.

That is, the drainage unit 20A has a first pressurizing pump 25 that applies pressure to the internal space of the closed chamber 21 connected to the closed chamber 21 via a check valve 25a instead of the negative pressure pump 22. ing. In this configuration, regarding the drainage of the boiler water, the cooling water is always discharged through the aspirator 24, but the method of introducing the boiler water into the closed chamber 21 is not a vacuum drawing but a drainage electromagnetic valve. It differs from the drainage unit 20 in that it is performed by dropping its own weight with the 33 and the air release valve 23 opened. Therefore, although it is difficult for the drainage unit 20A to be installed in a high place as described above, it is still possible to dispose of the drainage unit 20A separately from the distillation main body portion 10A.

Further, the aspirator 24 does not mix the boiler water in the closed chamber 21 with the cooling water by suction due to its own venturi effect, but by the pressure of the first pressurizing pump 25 after closing the atmosphere release valve 33. The specifications have been changed so that the boiler water pumped (fed) from the inside of the closed chamber 21 is taken in from the second inlet 24b and mixed.

In this case, the check valve 47 prevents the back feed of the boiler water in the closed chamber 21 to the steam generating portion main body 31 side. Further, the check valve 47 may be used as long as it can cope with the drop of the boiler water by its own weight, and therefore, for example, a check valve having a minimum valve opening pressure of about 1.0 kPa can be used. As described above, the ejector 24 in the drainage unit 20A functions to merely serve as a check valve rather than exerting the function of the Venturi effect.

According to the distilled water production apparatus 100A having such a configuration, the restrictions on installation are slightly increased as compared with the distilled water production apparatus 100 of the first embodiment, but the distillation main body portion 10A and the drainage unit 20A are still separated. Since it can be arranged in a high place, it is possible to obtain the same effect and effect except for the above-mentioned effect and installation in a high place.

[Modified example of the second embodiment]
Next, the distilled water production apparatus 100B according to the modified example of the second embodiment will be described. FIG. 6 is an explanatory diagram schematically showing the overall internal configuration of the distilled water production apparatus 100B according to the modified example of the second embodiment of the present invention.

As shown in FIG. 6, in the distilled water production apparatus 100B of the modified example of the second embodiment, the three-pronged pipe 26 is arranged in place of the aspirator 24 in the drainage unit 20B, and the three-pronged pipe 26 and the closed chamber 21 are combined with each other. The point that the first check valve 27 is arranged between the two is different from the drainage unit 20A of the second embodiment.

In this configuration, regarding the drainage of the boiler water, there is no difference in that the cooling water is constantly discharged through the three-pronged pipe 26, but in this three-pronged pipe 26, the cooling water is introduced from the first introduction port 26a. The pressurizing pump 25 of No. 1 merges with the boiler water pumped from the inside of the closed chamber 21 through the second introduction port 26b, and mixes the boiler water with the cooling water.

Then, the generated mixed water is discharged to the outside through the discharge port 26c. The first check valve 27 reverses the boiler water sent from the closed chamber 21 to the inside of the trident pipe 26 through the second introduction port 26b to the closed chamber 21 and cools it from the first introduction port 26a. It is provided to prevent water from entering. The distilled water production apparatus 100B of this modification can also exert the same effect as the operation and effect of the distilled water production apparatus 100A of the second embodiment.

[Third Embodiment]
Next, the distilled water production apparatus 100C according to the third embodiment will be described. FIG. 7 is an explanatory diagram schematically showing the overall internal configuration of the distilled water production apparatus 100C according to the third embodiment of the present invention.

As shown in FIG. 7, the distilled water production apparatus 100C according to the third embodiment applies pressure to the internal space of the steam generating unit main body 31 of the steam generating unit 30 with respect to the distillation main unit 10A of the second embodiment. The second pressurizing pump 34 to be added is arranged via the check valve 34a to form the distillation main body 10B, the point where the atmosphere release valve 43 connected to the gas discharge hole 56 is arranged, and the electromagnetic wave to the pipe 59a. The point that the valve 60 is arranged is different from the distilled water production apparatus 100A according to the second embodiment.

In this configuration, regarding the drainage of the boiler water, the cooling water is always discharged through the aspirator 24, but the method of introducing the boiler water into the closed chamber 21 is the drainage electromagnetic valve 33 and the opening to the atmosphere. It differs from the second embodiment in that it is performed by the pressure of the second pressurizing pump 34 after opening the valve 23 and the air release valve 43 and closing the electromagnetic valve 60.

Therefore, in the distilled water production apparatus 100C, the distillation main body corresponds to the installation in a high place where the drainage unit 20A is arranged at a position higher than the drainage position of the steam generating unit 30 as in the first embodiment. Since it can be separated from the portion 10B, the configuration of the distillation main body portion 10B is slightly increased, but the same effect as that of the first embodiment can be obtained.

[Modified example of the third embodiment]
Next, the distilled water production apparatus 100D according to the modified example of the third embodiment will be described. FIG. 8 is an explanatory diagram schematically showing the overall internal configuration of the distilled water production apparatus 100D according to the modified example of the third embodiment of the present invention.

As shown in FIG. 8, the distilled water production apparatus 100D of the modified example of the third embodiment has a steam generating unit main body 31 of the steam generating unit 30 with respect to the distillation main body 10A of the modified example of the second embodiment. A second pressurizing pump 34 for applying pressure to the internal space was arranged via a check valve 34a to form a distillation main body 10B, and an air release valve 43 connected to a gas discharge hole 56 was arranged. The point that the electromagnetic valve 60 is arranged in the pipe 59a is different from the distilled water production apparatus 100B according to the modified example of the second embodiment. The distilled water production apparatus 100D of this modification can also exert the same effect as the operation and effect of the distilled water production apparatus 100C of the third embodiment.

[Fourth Embodiment]
Next, the distilled water production apparatus 100E according to the fourth embodiment will be described. FIG. 9 is an explanatory diagram schematically showing the overall internal configuration of the distilled water production apparatus 100E according to the fourth embodiment of the present invention.

As shown in FIG. 9, the distilled water production apparatus 100E according to the fourth embodiment has a closed chamber 21, an air release valve 23, a check valve 25a, and a first check valve in the drainage unit 20A of the third embodiment. The drainage unit 20C is configured by omitting the pressurizing pump 25, which is different from the drainage unit 20A of the third embodiment.

According to the distilled water production apparatus 100E having such a configuration, the internal configuration, particularly the internal configuration of the drainage unit 20C, can be further simplified as compared with the distilled water production apparatus 100C of the third embodiment, and the third embodiment. The same action and effect as those of the embodiment can be obtained.

[Variation example of the fourth embodiment]
Next, the distilled water production apparatus 100F according to the modified example of the fourth embodiment will be described. FIG. 10 is an explanatory diagram schematically showing the overall internal configuration of the distilled water production apparatus 100F according to the modified example of the fourth embodiment of the present invention.

As shown in FIG. 10, the distilled water production apparatus 100F according to the modified example of the fourth embodiment has a closed chamber 21, an air release valve 23, and a check in the drainage unit 20B of the modified example of the third embodiment. The drainage unit 20D is configured by omitting the valve 25a and the first pressurizing pump 25, which is different from the drainage unit 20B of the modified example of the third embodiment.

The distilled water production apparatus 100F of this modification can also exert the same effect as the operation and effect of the distilled water production apparatus 100E of the fourth embodiment. Needless to say, in each of the above-described embodiments, the connection portions of the components, the joint portions such as pipes, and the like are all sealed.

Although some embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10,10A,10B Distillation body 20,20A,20B Drainage unit 21 Closed chamber 22 Negative pressure pump 23,43 Air release valve 24 Aspirator 25 First pressurizing pump 26 Three-pronged pipe 27,46,47 Check valve 30 Steam Generator 31 Water vapor generator body 32 Heater 33 Drainage electromagnetic valve 39 Piping 40 Cooling unit 41 Cooling pipe 42 Serpentine pipe 100 Distilled water production equipment

Claims (10)

A steam generation unit that stores raw water inside and heats it to generate steam, and a distillation main unit that has a cooling unit that cools the steam with cooling water to produce distilled water.
A distilled water production apparatus characterized in that it is provided separately from the distillation main body and is provided with a drainage unit for discharging the raw material water stored in the steam generation part to the outside. The distilled water production apparatus according to claim 1, wherein the drainage unit drains mixed water obtained by mixing the raw material water with the cooling water that has passed through the cooling unit. The distilled water production apparatus according to claim 1 or 2, wherein the drainage unit is configured to be dispositionable at a position higher than the drainage position of the steam generating portion. The drainage unit
A closed chamber that can introduce the raw material water inside,
A negative pressure pump that puts the internal space of the closed chamber into a negative pressure state,
An air release valve that can communicate the internal space of the closed chamber with the outside air,
Claim 1 is characterized by having an aspirator that allows the cooling water to flow, sucks the raw material water from the inside of the closed chamber, mixes the raw material water with the cooling water, and discharges the mixed water. 3. The distilled water producing apparatus according to any one of 3. The drainage unit has a partition plate that divides the internal space of the housing into an upper space and a lower space.
The distilled water according to claim 4, wherein the closed chamber is arranged in the upper space, and at least the aspirator of the negative pressure pump, the atmosphere release valve and the aspirator is arranged in the lower space. manufacturing device. The aspirator includes a first introduction port for introducing the cooling water into the inside, a second introduction port for sucking the raw material water inside, and a discharge port for discharging the mixed water.
The drainage unit is configured to be able to adjust the suction amount of the raw material water and the drainage temperature of the mixed water according to the separation distance between the second introduction port and the closed chamber and the flow velocity of the cooling water. The distilled water production apparatus according to claim 5, wherein the distilled water is produced. The drainage unit
A closed chamber that can introduce the raw material water inside,
A first pressurizing pump that applies pressure to the internal space of the closed chamber,
An air release valve that can communicate the internal space of the closed chamber with the outside air,
It is characterized by having an aspirator that allows the cooling water to flow and merges with the raw material water pumped from the inside of the closed chamber, mixes the raw material water with the cooling water, and discharges the mixed water. The distilled water production apparatus according to claim 1 or 2. The drainage unit
A closed chamber that can introduce the raw material water inside,
A first pressurizing pump that applies pressure to the internal space of the closed chamber,
An air release valve that can communicate the internal space of the closed chamber with the outside air,
A three-pronged pipe that introduces the cooling water and merges with the raw material water pumped from the inside of the closed chamber, mixes the raw material water with the cooling water, and discharges the mixed water.
The distilled water production apparatus according to claim 1 or 2, further comprising a first check valve installed between the closed chamber and the three-pronged pipe. The distillation main body has a second pressurizing pump that applies pressure to the internal space of the steam generating part.
The distilled water production apparatus according to claim 7 or 8, wherein the drainage unit is configured to be dispositionable at a position higher than the drainage position of the steam generating portion. The distilled water production apparatus according to any one of claims 7 to 9, further comprising a second check valve installed between the distillation main body portion and the drainage unit.

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