JP2824207B2 - Control device of filtration process in sake brewing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a filtration process in a sake brewing system, and more particularly to an automatic operation for separating a filter after the filtration is completed.

[0002]

2. Description of the Related Art In the sake brewing process, an upper tank (pressing) is used.
After the step, there is a filtration step. This step is a step of filtering the raw liquor immediately after squeezing the mash in the pressing step. Specifically, as shown in FIG. 3, activated carbon is stored in a tank (inlet tank) 1 for storing the raw liquor immediately after squeezing. After charging, stirring and standing, the activated carbon is filtered and removed to make clear sake.

Usually, for the purpose of shortening the filtration time, first, among the upper swallow 2 and the lower swallow 3 provided as a discharge port in the inlet tank 1, the upper swab 2 and the upper
A method is adopted in which the relatively clear sake in the upper layer is drawn out and filtered, and then the thickened portion of activated carbon in the lower layer of the tank 1 is drawn out from the lower bowl 3 and filtered.

[0004] Specifically, the sake from the upper swallow 2 or the lower swallow 3 is sent to a filter 7 through a primary transfer pipe system including a discharge pipe 4, a filtration feed pump 5 and a supply pipe 6, and the filter 7 Through the transfer pipe 8 constituting the secondary transfer pipe system to a clear tank (not shown).

[0005] Further, after water is pressed following the end of the filtration, the activated carbon captured in the filter 7 is dewatered and dried using compressed air.
It is necessary to disconnect the filter 7 from the filtration feed pump 5 while maintaining the pressure inside the filter 7 as well as performing the filtration and water pushing continuously. In the separating operation of the filter 7, the inlet-side disconnection valve a and the outlet-side disconnection valve b to the filter 7 must be closed at the same time without rapidly changing the pressure of the filter 7.

[0006]

However, conventionally, since the separating operation of the filter 7 is manually performed by a brewer (operator), the timing of the operation of the valves for the separating operation is required to be skillful, and the operation is unsuccessful. Then, there is a problem that the filter layer inside the filter 7 peels off and falls off, making dehydration and drying difficult.

Accordingly, an object of the present invention is to provide a sake brewing system capable of solving the above-mentioned problems and automatically performing the operation of disconnecting the filter after the filtration without danger of filter layer collapse due to switching delay. And a control device for the filtration step.

[0008]

In order to achieve the above object, a control apparatus for a filtration step in a sake brewing system according to the present invention comprises: a filter upstream of an inlet-side disconnection valve in a primary transfer piping system to a filter; Supply of liquor or pressurized water to a filter, by providing a bypass pipe with a valve between the outlet pipe and the downstream side of the outlet cutoff valve in the secondary pipe system, and a pressure sensor in the pipe near the inlet cutoff valve When stopping the operation, the opening of the valve of the bypass pipe and the closing of the inlet-side disconnection valve and the outlet-side disconnection valve to the filter are simultaneously advanced to the extent that the pressure display by the pressure sensor does not suddenly fluctuate. Things.

Further, the sake brewing system includes a filtration feed pump, and when the supply of liquor or pressed water to the filter is stopped, the filtration is performed to such an extent that the pressure display by the pressure sensor does not suddenly fluctuate. While the speed of the feed pump is controlled, the opening of the valve of the bypass pipe and the closing of the inlet-side disconnection valve and the outlet-side disconnection valve to the filter are simultaneously advanced.

[0010]

When the supply of liquor or pressurized water to the filter is stopped, the opening of the bypass pipe valve and the closing of the inlet-side disconnection valve and the outlet-side disconnection valve of the filter are simultaneously advanced. The filter can be automatically disconnected from the transfer piping system while preventing rapid fluctuation of the filter.

A filter feed pump can also be incorporated in the control. Under the speed control of the filter feed pump, the opening of the valve of the bypass pipe and the closing of the inlet side cutoff valve and the outlet side cutoff valve of the filter are simultaneously performed. By proceeding, the filter can be automatically disconnected from the transfer piping system while reliably preventing a rapid change in the pressure inside the filter.

[0012]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, since the basic configuration is the same as that of FIG. 3, the same components are denoted by the same reference numerals and description thereof will be omitted.

Unlike the case of FIG. 3, the supply pipe 6 in the primary transfer piping system to the filter 7 is provided near the inlet of the filter 7 at the inlet of the filter 7, and is provided with an inlet-side disconnection valve 9 for disconnection.
However, in the secondary transfer piping system, near the outlet of the filter 7 in the outlet pipe 8, there is provided an outlet-side disconnection valve 10 for disconnection composed of an automatic switching valve. A pressure sensor 1 for detecting the pressure in the filter 7 is provided on the inlet side of the filter 7 from the inlet-side disconnection valve 9 in the supply pipe 6.
1 and a pressure gauge 12 are provided.

A bypass valve 13 comprising an automatic switching valve is provided between the supply pipe 6 and the outlet pipe 8 on the upstream side of the inlet-side disconnection valve 9 and on the downstream side of the outlet-side disconnection valve 10. A bypass pipe 14 is provided, whereby the filter 7 is bypassed and separated from the pipe system, so that sake can be directly transferred from the primary transfer pipe system to the secondary transfer pipe system.

Further, the end of the outlet side pipe 8 is branched into a pipe 15 for transferring clear sake and a pipe 16 for drainage, and the feed switching valve 1 is provided in each of the pipes 15 and 16.
7, 18 are provided.

Reference numeral 19 denotes the valves 9, 10, 13, 17, 18
A programmable controller (so-called sequencer) 20 controls the opening and closing operation procedure and timing of the filter. The controller 20 controls the sequencer 19 and controls the speed of the filtration feed pump 5 so as to automate the separating operation of the filter 7. Are both components of the control device.

In the filtration step of filtering the raw sake after squeezing the mash in the pressing step, activated carbon is put into the inlet tank 1, stirred and allowed to stand, and then the activated carbon is filtered and removed to obtain a clear sake. I do.

First, under the control of the controller 20, as shown in FIG. 2A, the sequencer 19 opens the inlet-side disconnection valve 9 and the outlet-side disconnection valve 10, opens the bypass valve 13 and closes the filter. The feed pump 5 is operated to perform a filtering operation. At this time, the controller 20 performs speed control of the filtration feed pump 5 in accordance with the pressure fluctuation of the filter 7 detected by the pressure sensor 11, thereby adjusting so as to maintain a preset optimum pressure for filtration.

Next, when the feeding of the clear liquor is completed, a water pushing step after filtration is started, and the switching valve 17 is closed by the sequencer 19, and the switching valve 18 is opened instead.
As a result, the process is continuously switched from the step of feeding clear sake to the step of pushing water after filtration.

In the water pushing step after the completion of the sake filtration, the disconnection valves 9 and 10 of the filter 7 are both open and the bypass valve 13 is closed. The separation of the filter 7 is performed at a timing when the drainage becomes unnecessary after the end of the pushing water. That is, as shown in FIG. 2 (b), while gradually closing the outlet-side disconnection valve 10 of the filter 7 with a time lag, the closing operation of the inlet-side disconnection valve 9 and the opening operation of the bypass valve 13 are performed. Let them do it. This disconnect valve 9,
During switching of the bypass valve 10 and the bypass valve 13, the controller 2 is controlled so that the pressure in the filter 7 becomes constant as during filtration.
0 controls the speed of the filtration feed pump 5.

As described above, in the above embodiment, when the supply of liquor or pressurized water to the filter 7 is stopped, the controller 20 filters and sends the water so that the pressure display by the pressure sensor 11 does not fluctuate sharply. By controlling the speed of the pump 5 and simultaneously opening the bypass valve 13 of the bypass pipe 14 and closing the inlet-side disconnection valve 9 and the outlet-side disconnection valve 10 to the filter 7 by the sequencer 19, Abrupt pressure fluctuations and impacts of the filter 7 can be prevented, so that collapse of the filter layer of the filter 7 can be prevented.

The operation of each valve needs to be such that the filter layer of the filter 7 does not collapse due to sudden pressure fluctuations or shocks, and a motor-operated valve or an air-driven valve capable of adjusting the opening and closing speed is suitable. ing.

[0023]

In summary, according to the present invention, when the supply of liquor or pressurized water to the filter is stopped, the valve of the bypass pipe is opened, and the inlet-side disconnection valve and the outlet-side disconnection valve of the filter are closed. Simultaneously, the filter can be automatically disconnected from the transfer piping system while preventing a sudden change in the pressure inside the filter and thus preventing the filter layer of the filter from collapsing.

A filter feed pump can also be incorporated in the control. Under the speed control of the filter feed pump, the opening of the valve of the bypass pipe and the closing of the inlet side cutoff valve and the outlet side cutoff valve of the filter are simultaneously performed. By proceeding, the filter can be automatically disconnected from the transfer piping system while reliably preventing a rapid change in the pressure inside the filter.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing a connection state at the time of filtration and a connection state at the time of disconnection of the filter of FIG. 1;

FIG. 3 is a diagram showing disconnection of a conventional filter from a piping system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inlet tank 2 Upper cup 3 Lower cup 4 Dispense pipe 5 Filtration feed pump 6 Supply pipe 7 Filtration machine 8 Transfer pipe 9 Inlet cutoff valve 10 Outlet cutoff valve 11 Pressure sensor 12 Pressure gauge 13 Bypass valve 14 Bypass pipe 15 Pipe 16 Piping 17 Feed switching valve 18 Feed switching valve 19 Sequencer 20 Controller

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideki Yamaguchi 2-3-3 Kandajicho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (72) Inventor Kunihiro Okumoto 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Main Office (72) Inventor Hiroshi Yamazaki 2-3-3 Kandajicho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Main Office (56) References JP-A-7-274932 (JP, A) -80276 (JP, A) JP-A-5-111373 (JP, A) JP-A-5-64564 (JP, A) JP-A-7-143873 (JP, A) (58) Fields investigated (Int. . ^6, DB name) C12G 3/02 119

Claims (2)

(57) [Claims] A bypass pipe with a valve is provided between an upstream side of an inlet-side disconnection valve in a primary transfer piping system to a filter and a downstream side of an outlet-side disconnection valve in a secondary piping system from a filter. When a pressure sensor is installed in the pipe near the inlet-side disconnection valve and the supply of liquor or pressurized water to the filter is stopped, the valve on the bypass A control device for a filtration process in a sake brewing system, characterized in that the opening of the filter and the closing of the inlet-side disconnection valve and the outlet-side disconnection valve to the filter are simultaneously advanced. 2. The sake brewing system according to claim 1, further comprising a filter feed pump, wherein when the supply of liquor or pressurized water to the filter is stopped, the pressure display by the pressure sensor fluctuates rapidly. Wherein the speed of the filtration feed pump is controlled to an extent that the opening of the valve of the bypass pipe and the closing of the inlet-side disconnection valve and the outlet-side disconnection valve to the filter are simultaneously advanced. Control device for filtration process in brewing system.