JP4580583B2 - Evaluation method of cleaning condition in stationary cleaning - Google Patents

Description

【００１９】
洗浄剤供給条件として、解析結果で得られる円グラフ中の適正値面積が、５０％と４０％を占めるようにコントロールした。結果を表１に示す。
【００２０】
【表１】

【００２１】
表１より、適正値面積の範囲内に各条件が維持されている場合、洗浄効果は良好な結果を保ち、各条件の適正値面積以上の場合では、洗浄溶液温度・濃度・流量（流速）が無駄に使用されていることが考えられる。一方、適正値面積の範囲より一つの条件で面積が小さくなった場合は洗浄効果が劣った。
【００２２】

【００２３】
洗浄剤供給条件として、解析結果で得られる円グラフ中の適正面積が、６０％と５０％を占めるようにコントロールした。結果を表２に示す。
【００２４】
【表２】

【００２５】
表２より、適正範囲面積の範囲内に各条件が維持されている場合、洗浄効果は良好な結果を保ち、各条件の適正値面積以上の場合では洗浄溶液の温度・濃度・流量（流速）が無駄に使用されていることが考えられる。一方、適正値面積の範囲より、一つの条件でも面積が小さかった場合は、洗浄効果が劣った。
【００２６】
実施例３
乳飲料工場のＣＩＰ装置の本発明にかかるＣＩＰモニターを取り付け、標準の洗浄条件で洗浄を行った。洗浄およびすすぎ後に、工業用フアイバースコープを用いて飲料が通過する配管内および殺菌プレートの表面を観察し、洗浄の効果を確認した。結果は下記の通りであった。
【００２７】
〔１号ライン〕
(1) ＣＩＰモニターの結果では、洗浄剤濃度、洗浄溶液温度、洗浄溶液流量のいずれも設定の適切な範囲内の条件で洗浄されていたことを示していた。
【００２８】
(2) フアイバースコープによる観察の結果では、配管内および殺菌プレートの表面には汚れの残存は見られず、完全洗浄がなされた。
【００２９】
〔２号ライン〕
(1) ＣＩＰモニターの結果では、洗浄剤濃度と洗浄溶液温度はいずれも設定の適切な範囲内の条件で洗浄されており、洗浄溶液流量については適切な範囲を下まわる条件で洗浄されていたことを示した。
(2) フアイバースコープによる観察の結果では、配管内の表面には汚れの残存は見られず、きれいに洗浄されていたが、殺菌プレートの表面に若干の汚れが残存しており、不完全な洗浄であった。
【００３０】
【発明の効果】
以上のとおり、本発明はコンピュータシテスムを用いて、例えば、各種食品工場の定置洗浄（ＣＩＰ）工程において、洗浄に使用される洗浄剤の濃度・温度・および流量の適正なバランスを瞬時に、一見して判断し、洗浄状況を迅速に、容易に、かつ正確に把握して洗浄におけるエネルギーの削減と品質管理の向上を達成する。
【図面の簡単な説明】
【図１】本発明にかかる洗浄剤濃度のコンピュータシステムによるバンドグラフを表した一具体例である。
【図２】図１に基づく洗浄剤濃度の適正範囲、過少範囲および過大範囲をコンピュータ上に表した円グラフである。
【図３】洗浄剤濃度のバンドグラフである。
【図４】図３の円グラフである。
【図５】洗浄剤温度のバンドグラフである。
【図６】図５の円グラフである。
【図７】洗浄剤流量のバンドグラフである。
【図８】図７の円グラフである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for evaluating a cleaning situation in various CIP processes such as a stationary cleaning process (CIP process) in various food factories, for example, a glass bottle cleaning process in a beer factory, and in particular, a cleaning agent used for cleaning. The present invention relates to a method for evaluating a cleaning state in a CIP process that can determine a cleaning state at a glance by determining an appropriate balance of concentration, temperature, and flow rate at a quick, easy and accurate level.
[0002]
[Prior art]
Many food factories currently employ computer-based CIP monitors. This CIP monitor only has a function of displaying the concentration of the cleaning agent in the CIP process, the cleaning agent temperature, the cleaning agent flow rate, etc. on a computer and storing it.
[0003]
[Problems to be Solved by the Invention]
However, it has been impossible to analyze the various data and evaluate the cleaning situation in the stationary cleaning (CIP) to control the quality of the cleaning agent.
[0004]
Therefore, an object of the present invention is to instantly determine, at a glance, an appropriate balance of the concentration, temperature and flow rate of the cleaning agent used for cleaning in the stationary cleaning (CIP) process of various food factories, and the cleaning status To provide a method for evaluating the cleaning situation in stationary cleaning, which quickly, easily and accurately grasps, achieves energy reduction and quality control improvement in cleaning, and improves the above-mentioned drawbacks of the known technology is there.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, the upper and lower limits of the proper concentration of the cleaning agent in the stationary cleaning step , the upper and lower limits of the appropriate temperature, and the upper and lower limits of the appropriate flow rate are plotted on the vertical axis of the graph. As the length (a), the cleaning time is defined as the length (b) on the horizontal axis, and the area within the range between the upper limit and the lower limit / (a) × (b) × 100 is the area ratio and lower limit of the appropriate range Area not reaching the value / (a) × (b) × 100 is the area ratio of the underrange, and the area of the range exceeding the upper limit / (a) × (b) × 100 is the area ratio of the overrange In addition, the area ratio is displayed on a pie chart to evaluate the cleaning condition.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
[0007]
FIG. 1 is a specific example showing a band graph by the computer system of the detergent concentration according to the present invention, and FIG. 2 shows an appropriate range, under range and over range of the detergent concentration based on FIG. 1 on a computer. 3 is a band graph of the detergent concentration similar to FIG. 1, FIG. 4 is a pie chart of FIG. 3, FIG. 5 is a band graph of the detergent temperature, FIG. 6 is a pie chart of FIG. Is a band graph of the cleaning agent flow rate, and FIG. 8 is a pie chart of FIG.
[0008]
In FIG. 1, a change in detergent concentration of stationary cleaning (CIP) in a beer factory is represented by a band graph. First, set the cleaning agent concentration to 1.0% by weight, for example, and input 1.2% by weight into the computer system as the upper limit and 0.8% by weight as the lower limit. Is represented in the band graph as an area ratio, with an appropriate range, a range not reaching the lower limit value being an underrange, and a range exceeding the upper limit value being an overrange range.
[0009]
In FIG. 1, the area ratio of the appropriate range is calculated by the area within the upper limit and the lower limit range / length of the upper limit and the lower limit (a) × cleaning time (b) × 100, and reaches the lower limit with the area ratio of the underrange. Area / upper limit and lower limit length (a) × cleaning time (b) × 100, and the area ratio of the excessive range is the area / upper limit / lower limit length of the range exceeding the upper limit ( a) × washing time (b) × 100.
[0010]
Next, these area ratios are displayed on a pie chart as shown in FIG. By displaying on such a pie chart, the cleaning agent concentration status in CIP can be understood at a glance, and the cleaning status can be evaluated.
[0011]
In the present invention, such an evaluation is performed on the concentration, temperature and flow rate of the cleaning agent to complete the evaluation of the cleaning condition. That is, it is possible to determine the cleaning state quickly, easily and accurately by judging at a glance an appropriate balance of the concentration, temperature and flow rate of the cleaning agent used for CIP cleaning.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Example 1
The CIP monitor of the food factory was operated, and each element of concentration, temperature and flow rate of the cleaning agent to be used was recorded in a band graph and a pie chart, and the appropriateness of each element and the over and under condition of each element were shown.
[0013]
FIG. 3 is a band graph for the concentration of the cleaning agent, and FIG. 4 is a pie chart thereof. In Fig. 3, set the value as 1.0%, set the upper limit as 1.2%, and set the lower limit as 0.8% (both by weight). The pie chart of FIG. 4 was created. From FIG. 4, it can be seen at a glance the cleaning situation related to the concentration.
[0014]
FIG. 5 is a band graph for the temperature of the cleaning agent, and FIG. 6 is a pie chart thereof. In FIG. 5, the set value was set to 70 ° C., the upper limit value was set to 85 ° C., and the lower limit value was set to 60 ° C., and appropriate, under and over were expressed as area ratios, and the pie chart of FIG. 6 was created.
From FIG. 6, it can be seen at a glance the cleaning situation related to the temperature.
[0015]
FIG. 7 is a band graph for the flow rate of the cleaning agent, and FIG. 8 is a pie chart thereof. In FIG. 7, the set value. The pie chart of FIG. 8 was created by entering 17000 L / hr, an upper limit value of 2000 L / hr and a lower limit value of 16000 L / hr. From FIG. 8, it can be seen at a glance the cleaning situation concerning the flow rate.
[0016]
Example 2
Using a small CIP test device, (1) Milk dirt artificially adjusted to be easy to clean (2) Artificially adjusted test pieces with coffee dirt adhering to difficult to wash Conditions were set for each of the three factors of temperature, flow rate (flow rate), and concentration of the detergent solution, and washing was performed while changing these conditions.
[0017]
This cleaning state was recorded with a CIP monitor, and the results obtained were analyzed and the cleaning effect of the test piece stains after cleaning was visually confirmed. In the case of single-use CIP, only the temperature and flow rate (flow rate) of the cleaning solution were checked, and in the case of Ruus CIP, each element of the temperature and flow rate (flow rate) and cleaning agent concentration of the cleaning solution was confirmed.
[0018]

[0019]
The cleaning agent supply conditions were controlled so that the appropriate area in the pie chart obtained from the analysis results accounted for 50% and 40%. The results are shown in Table 1.
[0020]
[Table 1]

[0021]
According to Table 1, if each condition is maintained within the range of the appropriate value area, the cleaning effect will be good, and if it exceeds the appropriate value area for each condition, the cleaning solution temperature / concentration / flow rate (flow rate) May be used in vain. On the other hand, the cleaning effect was inferior when the area was reduced under one condition from the range of the appropriate value area.
[0022]

[0023]
The cleaning agent supply conditions were controlled so that the appropriate area in the pie chart obtained from the analysis results accounted for 60% and 50%. The results are shown in Table 2.
[0024]
[Table 2]

[0025]
From Table 2, if each condition is maintained within the range of the appropriate range, the cleaning effect will be good, and if it exceeds the appropriate value area for each condition, the temperature, concentration and flow rate (flow rate) of the cleaning solution May be used in vain. On the other hand, when the area was smaller even under one condition than the range of the appropriate value area, the cleaning effect was inferior.
[0026]
Example 3
A CIP monitor according to the present invention of a CIP apparatus of a milk beverage factory was attached, and washing was performed under standard washing conditions. After cleaning and rinsing, the effect of the cleaning was confirmed by observing the inside of the pipe through which the beverage passed and the surface of the sterilizing plate using an industrial fiberscope. The results were as follows.
[0027]
[Line 1]
(1) The results of the CIP monitor showed that the cleaning agent concentration, the cleaning solution temperature, and the cleaning solution flow rate were all washed under conditions within the appropriate setting range.
[0028]
(2) As a result of observation with a fiber scope, no dirt remained on the pipe and the surface of the sterilization plate, and the product was thoroughly cleaned.
[0029]
[Line 2]
(1) According to the results of CIP monitoring, the cleaning agent concentration and the cleaning solution temperature were both cleaned within the appropriate range of the setting, and the cleaning solution flow rate was cleaned under the appropriate range. Showed that.
(2) As a result of observation with a fiberscope, no dirt remained on the surface in the pipe, and the surface was cleanly cleaned. Met.
[0030]
【The invention's effect】
As described above, the present invention uses a computer system, for example, in the stationary cleaning (CIP) process of various food factories, to instantly see an appropriate balance of concentration, temperature, and flow rate of the cleaning agent used for cleaning. Judgment is made, and the cleaning situation is quickly, easily and accurately grasped to achieve energy reduction and improvement of quality control in cleaning.
[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, an under range and an over range of the detergent concentration based on FIG. 1 on a computer.
FIG. 3 is a band graph of detergent concentration.
4 is a pie chart of FIG.
FIG. 5 is a band graph of cleaning agent temperature.
6 is a pie chart of FIG.
FIG. 7 is a band graph of a cleaning agent flow rate.
FIG. 8 is a pie chart of FIG.

Claims (1)

The upper and lower limits of the proper concentration of the cleaning agent in the stationary cleaning process, the upper and lower limits of the appropriate temperature, and the upper and lower limits of the appropriate flow rate are defined as length (a) on the vertical axis of the graph, and the cleaning time is plotted on the horizontal axis. The length (b) is defined above, and the area within the range between the upper limit and the lower limit / (a) × (b) × 100 is the area ratio of the appropriate range, the area not reaching the lower limit / (a) × (b ) × 100 is calculated as the area ratio of the underrange , the area exceeding the upper limit / (a) × (b) × 100 is calculated as the area ratio of the overrange , and these area ratios are displayed on the pie chart. The cleaning condition evaluation method in stationary cleaning, characterized in that the cleaning condition is evaluated.

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