JP2002320928A - Evaluation method for washing condition of stationary washing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decide the washing condition swiftly, easily and accurately by deciding at a glance the correct balance of the concentration, temperature, and quantity of flow of a washing agent used for washing, with regard to a washing condition evaluation method for stationary washing process (CIP process) in various food factories, for example, for the glass bottle washing process, or the like, at a beer brewery, and various CIP processes. SOLUTION: The upper and lower limits of the correct concentration, the upper and lower limits of the correct temperature, and the upper and lower limits of the correct quantity of flow of the washing agent used in the stationary washing process are inputted in a computer. Proper ranges within the correct ranges of these upper and lower limits, under-ranges which do not reach the lower limits, and over-ranges which go over the upper limits are displayed as band graphs by their area ratios. Then, these area rations are displayed on a pie graph in order to evaluate the washing condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for evaluating the cleaning status in various cleaning and cleaning processes (CIP processes) in various food factories, for example, a glass bottle cleaning process in a beer factory, and more particularly to a cleaning method. The present invention relates to a method for evaluating a cleaning condition in a CIP process, which can determine a cleaning condition quickly, easily, and accurately by determining at a glance an appropriate balance among a concentration, a temperature, and a flow rate of a cleaning agent used for cleaning.

[0002]

2. Description of the Related Art Many food factories currently employ CIP monitors using computer systems. This CIP monitor only had the function of displaying the concentration of the cleaning agent, the temperature of the cleaning agent, the flow rate of the cleaning agent, and the like in the CIP process on a computer, and storing these.

[0003]

However, it has not been possible to analyze the various data and evaluate the cleaning status in the cleaning in place (CIP) to control the quality of the cleaning agent.

[0004] Therefore, an object of the present invention is to judge, at a glance, the appropriate balance of the concentration, temperature, and flow rate of the detergent used for washing in the stationary washing (CIP) process of various food factories. Quickly and easily the cleaning situation,
Another object of the present invention is to provide a method for evaluating the cleaning status in stationary cleaning, which accurately grasps the energy consumption in cleaning and improves the quality control and improves the above-mentioned disadvantages of the known art.

[0005]

According to the present invention, in order to achieve the above-mentioned object, an upper limit and a lower limit of a proper concentration of a cleaning agent in an in-place cleaning step, an upper limit and a lower limit of a proper temperature, and a proper Enter the upper and lower limits of the flow rate into the computer system, and display the appropriate range within the range of the upper and lower limits, the under range of the range that does not reach the lower limit and the over range of the range that exceeds the upper limit on the band graph in area ratio, Next, these area ratios are displayed on a pie chart to evaluate the cleaning state.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a specific example showing a band graph of a detergent concentration by a computer system according to the present invention, and FIG. 2 is a graph showing a proper range, an under range and an over range of the detergent concentration based on FIG. 3 is a band graph of the cleaning agent concentration similar to FIG. 1, FIG. 4 is a circle graph of FIG. 3, FIG. 5 is a band graph of the cleaning agent temperature, and FIG. 6 is a circle graph of FIG. 7 is a band graph of the flow rate of the cleaning agent, and FIG. 8 is a circle graph of FIG.

FIG. 1 is a band graph showing a change in the concentration of a cleaning agent in stationary cleaning (CIP) in a beer factory.
First, set the detergent concentration ヲ for example, 1.0% by weight,
The upper limit value of 1.2% by weight and the lower limit value of 0.8% by weight are input to the computer system, and the range of these upper and lower limits is an appropriate range, and the range that does not reach the lower limit is an under range,
The range exceeding the upper limit is defined as an excessive range and is represented by a band graph in terms of area ratio.

In FIG. 1, the area ratio in the proper range is calculated by the area within the range of the upper and lower limits / length of the upper and lower limits (a) × cleaning time (b) × 100. Area of range not reaching value / Length of upper and lower limits (a) ×
The cleaning time (b) × 100 is calculated, and the area ratio of the excessive range is calculated by the area / upper and lower lengths (a) × cleaning time (b) × 100 of the range exceeding the upper limit.

Next, these area ratios are displayed on a pie chart as shown in FIG. By displaying such a pie chart, the cleaning agent concentration state in the CIP can be seen at a glance and instantly understood, and the cleaning state can be evaluated.

In the present invention, such evaluation is performed for the concentration, temperature, and flow rate of the cleaning agent, and the evaluation of the cleaning state is completed. That is, it is possible to judge at a glance an appropriate balance among the concentration, the temperature, and the flow rate of the cleaning agent used for cleaning the CIP, and to quickly, easily, and accurately determine the cleaning state.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Example 1 A CIP monitor of a food factory was operated to determine the concentration, temperature and flow rate of each of the cleaning agents used.
Record on band graph and pie graph,
An under- or under-situation was indicated.

FIG. 3 is a band graph for the concentration of the cleaning agent, and FIG. 4 is a pie chart thereof. In FIG.
The set value is set as 1.0%, the upper limit value is set as 1.2%, and the lower limit value is set as 0.8% (all are weights). Created a pie chart. FIG. 4 shows at a glance the cleaning status related to the concentration.

FIG. 5 is a band graph of the temperature of the cleaning agent, and FIG. 6 is a pie chart thereof. In FIG.
The set value is set as 70 ° C., the upper limit is set as 85 ° C., and the lower limit is set as 60 ° C., and input, and the appropriate, under, or over is represented by the area ratio,
The pie chart of FIG. 6 was created. FIG. 6 shows at a glance the cleaning status related to the temperature.

FIG. 7 is a band graph for the flow rate of the cleaning agent, and FIG. 8 is a pie chart thereof. In FIG.
Set value. 17000 L / hr, the upper limit value was set to 2000 L / hr, and the lower limit value was set to 16000 L / hr, and entered. The appropriate, under, and over were displayed by area ratio, and the pie chart of FIG. 8 was created. FIG.
The cleaning condition related to the flow rate can be seen at a glance.

Example 2 Using a small CIP tester, (1) Milk stains artificially adjusted to be easy to wash (2) Tests with coffee stains artificially adjusted to be difficult to wash A piece was prepared, and the condition was set for each of the three factors of the temperature, flow rate (flow rate), and detergent concentration of the detergent solution, and washing was performed while changing these conditions.

The cleaning state is recorded on a CIP monitor,
Analysis of the obtained results and the cleaning effect of test piece stains after cleaning were visually confirmed. In addition, single use CI
In the case of P, only the temperature and flow rate (flow rate) of the cleaning solution were confirmed, and in the case of Lew's CIP, the temperature and flow rate (flow rate) of the cleaning solution and the detergent concentration were checked.

(1) Milk stain, Set temperature: 60 ° C Lower limit: 10% (54 ° C) Upper limit: 10% (66 ° C) Set flow rate (flow rate): 9,000 L / hr (2 m / sec) Lower limit : 15% (7,650 L / hr 1.67 m / sec) Upper limit: 20% (10,800 L / hr 2.39 m / sec) Set concentration: 1% Lower limit: 10% (0.9%) Lower limit: 20% (1.2 %)

The cleaning agent supply conditions were controlled so that the appropriate value area in the pie chart obtained from the analysis results occupied 50% and 40%. Table 1 shows the results.

[0020]

[Table 1]

From Table 1, it can be seen that when each condition is maintained within the range of the appropriate value area, the cleaning effect keeps good results, and when the condition is more than the appropriate value area of each condition, the cleaning solution temperature, concentration and flow rate are obtained. It is conceivable that (flow velocity) is being used wastefully. On the other hand, when the area was reduced under one condition from the range of the appropriate value area, the cleaning effect was inferior.

(2) Coffee stain Set temperature: 80 ° C. Lower limit: 10% (72 ° C.) Upper limit: 10% (88 ° C.) Set flow rate (flow rate): 9,000 L / hr (2 m / sec) Lower limit: 15% (7,650 L / hr 1.67 m / sec) Upper limit: 20% (10,800 L / hr 2.39 m / sec) Set concentration: 1% Lower limit: 10% (0.9%) Lower limit: 20% (1.2% )

The cleaning agent supply conditions were controlled so that the appropriate area in the pie chart obtained from the analysis results occupied 60% and 50%. Table 2 shows the results.

[0024]

[Table 2]

From Table 2, it can be seen that when each condition is maintained within the proper range area, the cleaning effect maintains good results.
If the area is equal to or more than the appropriate value area of each condition, it is conceivable that the temperature, concentration, and flow rate (flow velocity) of the cleaning solution are wasted. On the other hand, when the area was small even under one condition from the range of the appropriate value area, the cleaning effect was inferior.

Example 3 A CIP monitor according to the present invention was attached to a CIP device at a milk beverage factory, and cleaning was performed under standard cleaning conditions. After washing and rinsing, the inside of the pipe through which the beverage passes and the surface of the sterilizing plate were observed using an industrial fiberscope to confirm the effect of the washing. The results were as follows.

[Line 1] (1) The results of the CIP monitor showed that the cleaning was performed under the conditions within the proper range of the set, all of the cleaning agent concentration, the cleaning solution temperature, and the cleaning solution flow rate.

(2) As a result of observation with a fiber scope, no residual stain was observed in the piping and on the surface of the sterilizing plate, and complete cleaning was performed.

[Line 2] (1) According to the result of the CIP monitor, the cleaning agent concentration and the cleaning solution temperature are both cleaned within the appropriate set range, and the cleaning solution flow rate is set within an appropriate range. It was shown that it had been washed under the conditions below. (2) According to the result of observation with a fiber scope, no dirt remained on the surface of the piping, and the pipes were cleanly cleaned.However, some dirt remained on the surface of the sterilization plate, and incomplete cleaning was performed. Met.

[0030]

As described above, according to the present invention, for example, the stationary cleaning of various food factories (C)
In the IP) step, the concentration of the cleaning agent used for cleaning
Immediately, at a glance, judge the appropriate balance of temperature and flow rate, and quickly, easily, and accurately grasp the cleaning status to achieve reduction of energy in cleaning and improvement of quality control.

[Brief description of the drawings]

FIG. 1 is a specific example showing a band graph by a computer system of a detergent concentration according to the present invention.

FIG. 2 is a pie chart showing a proper range, a low range and a high range of the detergent concentration based on FIG. 1 on a computer.

FIG. 3 is a band graph of a detergent concentration.

FIG. 4 is a pie chart of FIG. 3;

FIG. 5 is a band graph of a cleaning agent temperature.

FIG. 6 is a pie chart of FIG. 5;

FIG. 7 is a band graph of a cleaning agent flow rate.

FIG. 8 is a pie chart of FIG. 7;

Claims (1)

[Claims] 1. An upper limit and a lower limit of an appropriate concentration of a cleaning agent, an upper limit and a lower limit of an appropriate temperature, and an upper limit and a lower limit of an appropriate flow rate of a cleaning agent in a stationary cleaning step are input to a computer system. The appropriate range within the range, the under range below the lower limit and the over range above the upper limit are displayed on the band graph in the area ratio, and then these area ratios are displayed on the pie graph to evaluate the cleaning status. A method for evaluating the cleaning status in stationary cleaning, characterized in that: