JPH07176Y2 - Fluid and other fluid mixing equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid mixing device used for mixing fluids such as liquids and gases in a food manufacturing process.

[0002]

2. Description of the Related Art A fluid mixing device of this type is provided with a stirring unit of a type in which circular discs with holes are concentrically stacked on a cylinder having a fluid inlet / outlet via spacers, and a spacer with porous discs having holes. It accommodates a stirring unit and the like that are concentrically stacked via the above. Then, the different kinds of fluids that have flowed in from the inlet pass through a large number of perforated discs through the through holes of the perforated spacer, are agitated while meandering or bypassing a complicated path, and exit from the outlet to the next step. Sent.

In such a fluid mixing apparatus, it is necessary to wash the perforated discs and spacers of the stirring unit regularly or as necessary to keep them clean. Therefore, conventionally, a stationary method in which the cleaning liquid supplied to the cylinder is passed through a through hole of a perforated disk, or the apparatus itself is disassembled to wash individual parts such as the perforated disk with the cleaning liquid. I was going the way.

[0004]

However, in the stationary cleaning method which does not require disassembly by the former, cleaning is performed because the through holes of the perforated disc are small in diameter and extremely small, and the number of them is large. There is a problem that it is difficult to obtain the flow rate and flow rate of the cleaning liquid required for the above. Further, the latter cleaning method has a problem that it takes time to disassemble the device and assemble it after cleaning.

The present invention has been made in view of the above problems. It is possible to clean a stirring unit and the like with a large amount of cleaning liquid having a high flow rate, while it can be cleaned by a stationary system that does not require disassembly. An object of the present invention is to provide a fluid mixing device that can do the above.

[0006]

A fluid mixing device for liquids and the like according to the present invention is a stirring unit for passing a fluid flowing from the inlet and outlet through a cylindrical cylinder having inlets and outlets for the fluid such as liquid while stirring. Is accommodated so that it can be retracted and retracted, and a seat having a sealing function is provided at one end of the cylinder, and the stirring unit can be retracted at the outer side of the seat at one end of the cylinder. End portions of a cylindrical auxiliary cylinder are continuously provided, and the auxiliary cylinder comes into contact with the seat portion to close the opening at one end of the cylinder and the opening portion apart from the seat portion. A valve body that can reciprocate between the position and the position is housed, and this valve body is fixed to the tip of the connecting rod that is inserted into the auxiliary cylinder and is pushed and pulled. It is those that are provided.

[0007]

With this configuration, during normal operation of fluid mixing processing, the connecting rod is pushed out to bring the valve body into contact with the seat portion of the cylinder, and the valve body closes the opening at one end of the cylinder. And the stirring unit is housed in the cylinder. In this way, by supplying different kinds of fluid from the inlet and outlet of the cylinder, the fluid is agitated and mixed by the action of the agitating unit while passing through the agitating unit, and normal operation is performed.

When the stirring unit and the like are washed, the washing liquid is supplied from the inlet of the washing liquid, and the connecting rod is pushed and pulled to move the stirring unit together with the valve body between the cylinder and the auxiliary cylinder. . By doing so, the cleaning liquid vigorously flows in a large amount through the small-diameter through holes of the circular plate and the perforated spacer of the stirring unit. Since such a cleaning process is performed without disassembling the device, the labor required for disassembly and assembly can be omitted.

[0009]

1 is a partially cutaway sectional view of a fluid mixing system according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a cylindrical cylinder, in which fluid inlets and outlets 2 and 3 are provided on the peripheral walls near the lower end and the upper end, respectively, and an agitating unit 4 is housed inside the fluid inlet and outlet. This stirring unit 4
Is composed by alternately stacking perforated discs 41 having a large number of small through holes 42 shown in FIG. 2 and spacers 43, and the total length thereof is slightly shorter than that of the cylinder 1. The outer diameter (outer diameter of the perforated disc 41) is slightly shorter than the inner diameter of the cylinder 1. The agitation unit 4 is not limited to the one having the configuration shown in the figure, but is an alternating stack of perforated discs and cylindrical perforated spacers having a large number of small through holes, or Japanese Utility Model Publication No. 62-45589. It is possible to employ various configurations such as a combination of a large number of baffles as described to form a labyrinth through which a fluid passes.

A flange 11 is provided at one end (upper end) of the cylinder 1, an annular groove 12 is formed in the inner peripheral portion of the flange 11, and the annular groove 12 is sealed so as to project upward. The packing is held, and the seat portion 13 having a sealing function is formed by the seal packing.

Reference numeral 5 is a cylindrical auxiliary cylinder, and a flange 51 formed at the end (lower end) thereof has the above-mentioned seat 13
In the outer portion of the cylinder 1, the flange 11 of the cylinder 1 is continuously provided via a packing 52. The auxiliary cylinder 5 has a cylindrical shape whose diameter is larger than that of the cylinder 1, so that the stirring unit 4 can also move in and out of the auxiliary cylinder 5.

Reference numeral 6 denotes a disc-shaped valve body, and the valve body 6 has an upper end of a connecting rod 61 extending from the stirring unit 4 and a lower end of a connecting rod 62 inserted into the auxiliary cylinder 5, respectively. It is connected. The valve body 6 is capable of reciprocating inside the auxiliary cylinder 5, and when the valve body 6 is in contact with the seat portion 13 as shown by the solid line in FIG. The opening 14 is opened when it is tightly or airtightly closed and separated from the seat portion 13 as shown by an imaginary line in FIG. Further, a required number of inlets and outlets 71, 72 for the cleaning liquid are provided on the peripheral wall of the auxiliary cylinder 5.
73, 74 and 75 are provided.

A mounting plate 81 of a cylindrical mounting frame 8 is connected to an upper end flange 52 of the auxiliary cylinder 5. Mounting plate 81
Has a through hole 82, and the piston rod 9 of the cylinder device 9 is attached to the upper end of the connecting rod 62 inserted into the through hole 82.
1 are connected via a joint 92. 83 is a connecting rod 6
It is a sealing material for sealing the gap between 2 and the through hole 82 liquid-tight or air-tight.

In the above structure, during normal operation for fluid mixing, the cylinder device 9 pushes the connecting rod 62 to bring the valve body 6 into contact with the seat portion 13 of the cylinder 1, and the valve body 6 uses the valve body 6 to contact the valve body 6. The opening 14 at one end of the cylinder 1 is closed, and the stirring unit 4 is housed in the regular position of the cylinder 1. In this state, for example, if a different kind of fluid is supplied from one inlet / outlet port 2 of the cylinder 1,
The fluid passes through the gap between the perforated disc 41 and the inner surface of the cylinder 1 or through the through hole 42 of the perforated disc 41 while meandering or detouring, and stirring is performed to mix different types of fluid. The fluid thus mixed exits from the other inlet / outlet port 3 and is sent to the next step.

When cleaning the stirring unit 4 and the inner surface of the cylinder 1, etc., one of the inlets and outlets 71 to 7 of the cleaning liquid is used.
5 to supply the cleaning liquid, and the cylinder device 9 pushes and pulls the connecting rod 62 as indicated by an arrow A to move the stirring unit 4 together with the valve body 6 between the cylinder 1 and the auxiliary cylinder 5. I do. By doing this, the cleaning liquid
A large amount of gas is vigorously circulated through the gap between the perforated disc 41 of the stirring unit 4 and the inner surface of the cylinder 1 or the auxiliary cylinder 5 and the through hole 42 of the perforated disc 41 to wash each part. Since such a cleaning process is performed without disassembling the device, it does not take time and effort to disassemble and assemble.

When cleaning the fluid mixing apparatus used in the food manufacturing process, the cleaning liquid is an acidic cleaning liquid effective for oil,
An alkaline cleaning solution effective for neutralizing a wet part with an acidic cleaning solution, steam effective for sterilization, etc. are used. Then, these connect the respective supply pipes to the respective inlets and outlets 7
It is desirable that the cleaning liquids be separately connected to 1, 72, 73 and the cleaning liquids be sequentially supplied by valve control. It should be noted that the inlets / outlets 71 to 75 that are not used in the washing process may be closed with a blind lid or a valve. In this embodiment, the cleaning liquid inlets / outlets 71 to 75 are all provided in the auxiliary cylinder 5, but these inlets / outlets 71 to 75 may be provided in the cylinder 1 or may be distributed to both the cylinder and the auxiliary cylinder 5. Good.

[0017]

As described above, the fluid mixing device for liquids according to the present invention can perform the cleaning process in a stationary manner without the need for disassembling. It is possible to immediately shift to the washing step or immediately shift to the operating state after the washing without passing through the assembly step. In addition, since the stirring unit is moved back and forth between the cylinder and the auxiliary cylinder to perform cleaning, the cleaning liquid vigorously flows in large numbers through a large number of small through holes such as perforated discs in the stirring unit to ensure the cleaning. There is an advantage that various cleaning is performed. Further, since disassembly is not required, there is an advantage that the labor required for disassembly and assembly can be omitted.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view of a fluid mixing system according to an embodiment of the present invention.

FIG. 2 is a plan view illustrating an effective disc of a stirring unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylinder 2, 3 Fluid inlet / outlet 4 Stirring unit 5 Auxiliary cylinder end 6 Valve body 13 Seat 14 Opening at one end of cylinder 61 Connecting rod 62 Connecting rod 71-75 Inlet / outlet of cleaning liquid

Claims (1)

[Scope of utility model registration request] 1. A cylindrical cylinder having inlets and outlets for a fluid such as a liquid at both ends, a stirring unit that allows the fluid flowing from the inlet and outlet to pass while being stirred is retractably accommodated, and one side of the cylinder. A seat portion having a sealing function is provided at an end portion, and an end portion of a cylindrical auxiliary cylinder of the stirring unit, which is retractable, is connected to an outer portion of the seat portion at one end portion of the cylinder. The auxiliary cylinder accommodates a valve element that can reciprocate between a position that contacts the seat portion and closes the opening at one end of the cylinder, and a position that separates from the seat portion and opens the opening. This valve body is fixed to the tip of the connecting rod that is inserted into the auxiliary cylinder and is pushed and pulled, and the connecting rod that extends from the stirring unit.The cylinder or the auxiliary cylinder is provided with a cleaning liquid inlet / outlet. Are A fluid mixing device for a liquid or the like.