JPS6326230Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a storage tank device,
More specifically, the present invention relates to a tank device for storing relatively high temperature liquid.

For example, a tank device for storing distilled water obtained by a distillation device is generally kept at a relatively high temperature to prevent volatile impurity gases from dissolving in the distilled water. In such a tank device, steam tends to adhere to a filter that communicates between the inside and outside of the tank device, shortening the life of the filter.

This invention was devised in view of the above-mentioned conventional problems, and consists of a condensing device interposed between the filter and the tank device in order to prevent vapor from adhering to the filter. Hereinafter, one embodiment of the present invention will be described in detail using the drawings. In addition,
The following embodiments will be described with reference to the case where the tank device according to the present invention is implemented in a distillation apparatus, but the present invention is not limited to this embodiment, and can be implemented in tank devices in various other devices.

As is clear from FIG. 1, the distillation apparatus 1 according to the present invention mainly includes a raw water tank 5 that stores raw water 3, and an evaporator section 7 that heats and evaporates the raw water.
and a condenser section 9 which cools the steam from the evaporator section 7 and converts it into distilled water.

The raw water tank 5 has a long cylindrical shape with a relatively large diameter, and the raw water 3 is placed in the lower part of the tank from the center.
The upper side is a rising tower part 5a in which the steam from the evaporator part 7 rises relatively slowly. A raw water supply pipe 11 connected to a pump or the like (not shown) is connected to a position slightly below the center of the raw water tank 5 to supply raw water. Appropriate valve devices V1, V such as solenoid valves
2 and V3 are appropriately arranged. Therefore, raw water can be automatically supplied to the raw water tank 5 by appropriately controlling the valve devices V1, V2, and V3.

A water level gauge 13 is installed at an appropriate position in the raw water tank 5.
is connected thereto, and a water level adjustment cylinder 15 for adjusting the water level of raw water is connected via piping. A plurality of water level sensors 19A, 19B, 19C, and 19D such as electrodes are installed inside the water level adjusting cylinder 15, and an overflow pipe 21
is arranged. The overflow pipe 21 is
It is connected to a drain pipe 23 connected to the bottom of the raw water tank 5 via a valve device V4, for example a motor valve. The water level sensor 19A in the water level adjustment cylinder 15 detects that the water level in the raw water tank 5 is abnormally low, and when detected, has the function of stopping the heating of the evaporator section 7. The water level sensor 19B is connected to the raw water tank 5.
It has the function of detecting a drop in the water level in the pipe and controlling the valve device disposed in the raw water supply pipe 11 to control the supply of raw water. The water level sensor 19C has a function of detecting a rise in the water level in the raw water tank 5 and stopping the supply of raw water to the raw water tank 5. Water level sensor 19D
This is to detect an abnormal rise in the water level in the raw water tank 5 or an abnormal pressure rise in the raw water tank 5 at a position below the opening at the top of the overflow pipe 21, and when detected, a buzzer etc. This functions to issue a warning of an abnormality and to stop the entire device.

Therefore, raw water is automatically supplied to the raw water tank 5, and the water level in the raw water tank 5 is maintained within a substantially constant range. When the water level drops abnormally, the heating of the evaporator section 7 is stopped to prevent abnormal heating, and when the pressure inside the raw water tank 5 rises abnormally due to various reasons, for example. In this case, the water level in the water level adjustment tube 15 is raised, the water level sensor 19D is activated, an alarm is issued, and the entire device is stopped, so safety is extremely high.

The raw water tank 5 is connected to the above-mentioned evaporator section 7, and a cyclone device 25 is disposed on the upper side as described later.

The evaporator section 7 is constructed by arranging plate-shaped pipe holders 29 near both upper and lower ends of a large-diameter tube body 27, and supporting a plurality of pipes 31 passing vertically through the upper and lower pipe holders 29. . T-shaped joint members 33 are provided at both upper and lower ends of the tube body 27.
are fixed respectively. This joint member 33 is
It has a function of connecting a plurality of pipe bodies 27 in parallel to change the capacity of the evaporator section 7, but in this embodiment, one end is closed with a blind stopper 35, and the other end is connected to the raw water. It is connected to tank 5. That is, in this embodiment, the upper joint member 33 is removably connected to the rising tower part 5a through which the steam on the upper side of the raw water tank 5 rises via a joint 37 such as a flange joint, and The joint member 33 is detachably connected to the vicinity of the bottom of the raw water tank 5 via a joint 37.
Therefore, the pipe body 27 can be treated as one unit and can be connected to a plurality of pipes.
The raw water is at the same water level as the water level.

A steam supply pipe 39 for supplying heated steam around the pipe 31 is connected to the vicinity of the upper part of the pipe body 27, and a pressure reducing valve 41 and an electromagnetic valve for reducing the steam pressure to a constant level are connected to the steam supply pipe 39. Appropriate valve devices such as valves V5, V6, V7, etc. are provided as appropriate. Further, a reflux pipe 43 for refluxing steam is connected near the lower end of the pipe body 27, and a steam trap 45 for draining the liquefied portion of the steam and a suitable valve device are connected to the reflux pipe 43. A V8 is installed. Therefore, the steam supply pipe 39
By supplying heated steam into the pipe body 27, the raw water in the pipe 31 is heated and steam is generated, and the generated steam is transferred to the raw water tank 5.
The water flows into the rising tower section 5a at the top of the column. Steam supply can be automatically stopped by controlling various valve devices.

At the top of the raw water tank 5, the cyclone device 25 is arranged to separate droplets containing impurities from the steam from the evaporator section 7. This cyclone device 25 has a cylindrical outer tube 47
and an inner cylinder 49. Outer cylinder 4
7 is formed with a steam inlet 51 that opens in the tangential direction so that the steam from the evaporator section 7 swirls along the inner circumferential surface. The lower part of the outer cylinder 47 is formed into a conical shape with a small diameter at the lower part, and a condensate pipe 53 whose lower end faces into the raw water 3 of the raw water tank 5 is connected to the lower end thereof. The inner cylinder 49 communicates between the inside of the cover member 55 attached to the upper end of the raw water tank 5 and the inside of the outer cylinder 47, and is located at the axial center of the outer cylinder 47. is located below the position of the steam inlet 51.

Therefore, the steam flowing from the evaporator section 7 to the rising tower section 5a at the upper part of the raw water tank 5 is as follows.
The steam rises and flows tangentially into the outer cylinder 47 from the steam inlet 51 of the outer cylinder 47 in the cyclone device 25 . Therefore, a swirling flow of steam is induced in the outer cylinder 47, and the swirling flow gradually descends toward the lower end of the inner cylinder 49. Therefore, droplets containing impurities are separated from the steam by centrifugal force, and only the purified steam passes through the inner cylinder 49 and flows into the cover member 55. The signal is sent to the capacitor section 9.

Droplets centrifuged in the cyclone device 25 descend along the inner peripheral surface of the outer cylinder 47 and are returned to the raw water 3 via the condensate pipe 53. At this time, since the water does not drip into the raw water 3 and is recycled through the condensate pipe 53, the upper surface of the raw water 3 is kept in a quiet state and no splashes are generated. Note that when impurities in the steam are centrifuged in the cyclone device 25 and returned to the raw water 3, thereby concentrating the raw water, the entire device is stopped, the raw water 3 is discharged from the drain pipe 23, and a new By supplying the raw water 3, stable water quality can be obtained and scale adhesion inside the raw water tank 5 etc. can be significantly reduced.

The above-mentioned capacitor section 9 is horizontally connected to the cover member 55 attached to the upper part of the raw water tank 5. The capacitor section 9 consists of a horizontal tube body 57 with both ends closed, and as shown in FIG. 2, plate-shaped pipe holders 59 are arranged near both ends of the tube body 57. There is. The steam pipe holder 59 supports a plurality of groups of pipes 61a, 61b, and 61c, which are open at both ends and divided into upper, middle, and lower stages. A steam conduit 65 (see FIG. 1) for guiding steam from inside the cover member 55 is connected to the condensing chamber 63 between the two pipe holders 59.

One end of the lower pipe group 61c in the pipe body 57 communicates with the cooling water supply chamber 67, and the other end communicates with the first connection chamber 69. A cooling water supply pipe 71 is connected to the cooling supply chamber 67 and is provided with a flow meter, a flow control valve, and an appropriate control valve. One end of the middle pipe group 61b communicates with the first connection chamber 69, and the other end communicates with a second connection chamber 73 adjacent to the cooling water supply chamber 67. One end of the upper pipe group 61a communicates with the second connection chamber 73, and the other end communicates with a drain chamber 75 adjacent to the first connection chamber 69, and a drain pipe 76 is connected to the drain chamber 75. It's connected. Furthermore, an exhaust pipe 79 formed by connecting a normally open solenoid valve 77 is connected to the upper side of the pipe body 57, and a rotating extraction pipe 81 for taking out distilled water is connected to the lower side. Take-out pipe 8
A suitable valve device is branched and connected to 1, and a portion of this take-out pipe 81 is bent to a position higher than the lower part of the pipe body 57. This extraction pipe 81 is
It is connected to a tank 83 that stores distilled water.

Therefore, when cooling water is supplied from the cooling water supply pipe 71, the cooling water is discharged through the lower pipe group 61c, the middle pipe group 61b, and the upper pipe group 61a in order, and is discharged from the condensation chamber 63. The steam is cooled and liquefied. The distilled water produced by liquefaction is stored in the lower part of the pipe body 57, and is cooled by the lower pipe group 61c. Although the distilled water is subjected to a cooling effect, it is maintained at a relatively high temperature (for example, 70°C or higher), so volatile impurities are discharged to the outside from the exhaust pipe 79 and are not redissolved in the distilled water. It is. In addition, the cooling water flows through the upper, middle, and lower pipe groups to increase its flow rate, resulting in good heat exchange efficiency. Furthermore, since the exhaust pipe 79 is closed by the solenoid valve 77 when the entire device is stopped, outside air does not flow into the condenser section 9 and cause contamination, and distilled water can be taken out quickly when restarting. It is something. Note that the electromagnetic valve 77 may be replaced with a check valve or the like, depending on the case.

The tank 83 stores distilled water taken out from the condenser section 9 through the take-out pipe 81. A water pump (not shown) is connected to the bottom of the tank 83, and the water pump pumps the distilled water in the tank 83. Water is taken out to the outside as necessary.
As shown in FIG. 3, a heater 85 is provided at an appropriate position within this tank 83, and the distilled water within the tank 83 is maintained at a relatively high temperature. Therefore, even if outside air flows into the tank 83, the gas will not be dissolved and will be retained in high-purity distilled water.

The tank 83 is attached to the lid member 87 of the tank 83.
A condensing chamber 89 communicating with the inside is installed, and an air vent filter 91 as a valve device is connected to this condensing chamber 89. A cooling pipe 93 through which cooling water flows is inserted into the condensing chamber 89 . Therefore, the inside of the tank 83 is communicated with the outside air via a condensing chamber 89 and a filter 91.
Note that since the condensing chamber 89 is interposed between the filter 91 and the tank 89, the steam is condensed in the condensing chamber 89, and the steam does not reach the filter 91. The lifespan is longer than that of conventional products.

Inside the tank 83, a plurality of water level sensors, such as float switches, are arranged vertically apart. The water level sensor 95A at the top has the function of detecting an abnormal rise in the distilled water in the tank 83 and issuing an alarm with a buzzer etc., as well as stopping the distillation apparatus. It is arranged. The second water level sensor 95B from the top has the function of detecting that the level of distilled water in the tank 83 has risen and stopping the distillation, and is disposed slightly below the water level sensor 95A. There is. Third stage water level sensor 95
C has a function of detecting that the level of distilled water in the tank 83 has decreased and restarting the distillation, and is disposed at an appropriate position below the water level sensor 95B. The fourth stage water level sensor 95D has the function of detecting that the level of distilled water in the tank 83 has dropped considerably and stopping or blocking the operation of the water pump. It is arranged. Therefore, the level of distilled water in the tank 83 is automatically adjusted.

As already understood from the above explanation, the distillation apparatus 1 can be operated fully automatically. In addition, in the distillation apparatus 1, when raw water is supplied from the raw water supply pipe 11 into the raw water tank 5, the water level of the raw water is adjusted by the action of the water level adjustment cylinder 15. Thereafter, when heated steam is supplied to the evaporator section 7, the raw water is evaporated as described above. When the raw water in the raw water tank 5 decreases due to evaporation of the raw water, raw water is automatically supplied by the action of the water level adjustment cylinder 15 as described above, and the water level of the raw water is adjusted.

The steam generated in the evaporator section 7 flows into the rising tower section 5a at the upper part of the raw water tank 5, and then into the cyclone device 25, where impurities and droplets are separated, and only purified steam is sent to the condenser section 9. It is cooled and condensed to become distilled water. Then, the distilled water is taken out and stored in the tank 83, and the distilled water in the tank 83 is sent to the outside of the tank 83 by a water pump.

As can be understood from the above description of the embodiments, the gist of this invention is as stated in the claims for utility model registration. The vapor will be liquefied by the device, and there will be no direct flow of steam into the filter device. Therefore, vapor does not adhere to the filter device, and the life of the filter device is extended compared to the conventional filter device.

It should be noted that the present invention is not limited to the above embodiments, but can be implemented in other forms by making appropriate design changes.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the entire distillation apparatus, FIG. 2 is a detailed diagram of the condenser section, and FIG. 3 is an enlarged sectional view of the tank apparatus. Explanation of symbols representing main parts of the drawings, 83...
...Tank, 89...Condensing chamber, 91...Filter.

Claims (1)

[Scope of utility model registration request] A tank for holding and storing distilled water obtained by heating raw water to steam and condensing the steam at a high temperature, and above the tank, a cooling pipe through which water in the raw water flow path flows; A storage tank device comprising: a condensing chamber that covers a cooling pipe and partially communicating with the inside of the tank; and a filter device communicating with outside air above the condensing chamber.