CN105043953A - Method for estimating dust exposure concentration for operating personnel of thermal power enterprise - Google Patents
Method for estimating dust exposure concentration for operating personnel of thermal power enterprise Download PDFInfo
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- CN105043953A CN105043953A CN201510506157.6A CN201510506157A CN105043953A CN 105043953 A CN105043953 A CN 105043953A CN 201510506157 A CN201510506157 A CN 201510506157A CN 105043953 A CN105043953 A CN 105043953A
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Abstract
The invention discloses a method for estimating the dust exposure concentration for operating personnel of a thermal power enterprise. The method comprises the following steps: determining the number of days for continuous measurement according to the working time, a duty situation and a working schedule of a station; detecting the dust exposure concentration of each crew by a dust detector, and calculating a periodic dust exposure concentration average value of the station; comparing the periodic dust exposure concentration average value with an adjusted national standard to judge whether the dust exposure concentration for the operating personnel meets the stipulations of the national hygienic standard or not. According to the method, the problem that the conventional detection evaluation method cannot evaluate the dust exposure concentration for the type of operating personnel is solved, and the concentration level of dust exposure for a worker is really reflected to the maximum extent.
Description
Technical field
The present invention relates to a kind of appraisal procedure of thermal power generation corporations operations staff dust exposure concentration.
Background technology
Dust is the main occupational that thermal power generation corporations exist, but few about the research of assessment operations staff dust exposure concentration method.
National Specification, the limit value of operating personnel's Long contact time dust concentration is " time integration algorithm (PC-TWA) ", it is take time as the 8 times each workday of flexible strategy, forty-hour week on average allow exposure concentration.
The working system of thermal power generation corporations operations staff mainly comprises five value Fourth Shifts, four value class Threes etc., the working system of operations staff from traditional work weekly 5 days, every day the working system that works 8 hours completely different.The working system of this type of operations staff needs the working time 24 hour every day to be divided into 3 classes or 4 classes, then operations staff is divided into 4 values or 5 values, takes turns at keeping watch, guarantee that people's machine of having a rest is not had a rest.
Because current national standard is not suitable for the operations staff of thermal power generation corporations, current detection method is only leaned in GB, can not reflect the exposure level of operating personnel the most really.Common way mainly wraps 8 hours that only detect day shift, and continuous detecting 3 days, then compares the testing result of 3 days and PC-TWA.
Summary of the invention
The present invention is in order to solve the problem, propose a kind of appraisal procedure of thermal power generation corporations operations staff dust exposure concentration, the method measurement result is accurate, has both considered the difference of testing staff, also consider the difference of operating mode, the level of the dust exposure concentration of operations staff can be reflected the most really.
To achieve these goals, the present invention adopts following technical scheme:
An appraisal procedure for thermal power generation corporations operations staff dust exposure concentration, comprises the following steps:
(1) according to the number of days of working time in post, score value situation and working system determination continuous coverage;
(2) utilize dust detector to detect the dust exposure concentration of each class, calculate the cycle dust exposure mean concentration in this post;
(3) by cycle dust exposure mean concentration with adjustment after national standard compared with, judge whether operations staff's dust exposure concentration meets the regulation of Occupational health.
The concrete grammar of described step (1) comprising:
A1. investigating this post working time of 1 day 24 hours comprises several class altogether, represents with n;
A2. investigate this post operations staff and be divided into several value, represent with m;
A3. according to the number of days y of the working system determination continuous coverage of m value n class; The number of days that 1 cycle that the number of days y of continuous coverage and the operating personnel of m value complete in shifts comprises.
The concrete grammar of described step (2) is: utilize individual dust detector to detect the dust exposure concentration of each class, represent, continuous coverage y days with Cn; Calculate 1, this post cycle dust exposure mean concentration, y*n the numerical value being about to measure y days gets arithmetic mean, uses C
post is averagerepresent.
The concrete grammar of described step (3) is:
B1. working time T weekly, T=24*7/m under the long-term average level of this post operations staff is determined;
The mean exposure dust concentration C of the mean concentration of this 1 cycle dust exposure in post represents operations staff weekly T hour working time
post is average=C
t;
B2. according to national regulation by the standard limit of PC-TWA by the standard limit being adjusted to weekly weekly T hour for 40 hours, use PC-TWA
trepresent, by C
twith PC-TWA
tcompare, determine whether to exceed standard.
Beneficial effect of the present invention is:
(1) evaluating the true horizon farthest reflecting operating personnel's dust exposure in thermal power generation corporations operations staff dust exposure concentration, and fully take into account each class and every day operating mode the difference of each value individuality of impact and post;
(2) measurement result is accurate, has both considered the difference of testing staff, and has also considered the difference of operating mode.
Embodiment:
Below in conjunction with embodiment, the invention will be further described.
A kind of method assessing thermal power generation corporations operations staff dust exposure concentration is as follows:
1, investigate the working system that A post is 4 value 3 classes, the number of days that 1 periodic packets that 4 value operating personnels (A, B, C, D represent) complete in shifts contains is 4 days.See the following form:
| First day | Second day | 3rd day | 4th day | |
| Mornig shift | A | D | C | B |
| The middle class in a kindergarten | B | A | D | C |
| Night shift | C | B | A | D |
2, utilize individual dust detector to detect the dust concentration of each class, continuous coverage 4 days, detects 12 results altogether, as follows:
3, by above-mentioned 1 cycle detection to 12 results get arithmetic mean, C
post is average=0.91mg/m
3.
4, working time T=24*7/4=42 hour weekly under the long-term average level of this post operations staff.
5, according to national regulation by the standard limit of PC-TWA by the standard limit being adjusted to weekly 42 hours weekly for 40 hours, this post contact dust 40 hours contact limit value be 1mg/m
3, the limit value according to the rules after adjustment is 0.93mg/m
3.
0.91<0.93, therefore, this post operations staff's dust exposure concentration is no more than the requirement of Occupational hygienic standard.
Although above-mentioned, the specific embodiment of the present invention is described; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (4)
1. an appraisal procedure for thermal power generation corporations operations staff dust exposure concentration, is characterized in that: comprise the following steps:
(1) according to the number of days of working time in post, score value situation and working system determination continuous coverage;
(2) utilize dust detector to detect the dust exposure concentration of each class, calculate the cycle dust exposure mean concentration in this post;
(3) by cycle dust exposure mean concentration with adjustment after national standard compared with, judge whether operations staff's dust exposure concentration meets the regulation of Occupational health.
2. the appraisal procedure of a kind of thermal power generation corporations operations staff dust exposure concentration as claimed in claim 1, is characterized in that: the concrete grammar of described step (1) comprising:
A1. investigating this post working time of 1 day 24 hours comprises several class altogether, represents with n;
A2. investigate this post operations staff and be divided into several value, represent with m;
A3. according to the number of days y of the working system determination continuous coverage of m value n class; The number of days that 1 cycle that the number of days y of continuous coverage and the operating personnel of m value complete in shifts comprises.
3. the appraisal procedure of a kind of thermal power generation corporations operations staff dust exposure concentration as claimed in claim 1, it is characterized in that: the concrete grammar of described step (2) is: utilize individual dust detector to detect the dust exposure concentration of each class, represent with Cn, continuous coverage y days; Calculate 1, this post cycle dust exposure mean concentration, y*n the numerical value being about to measure y days gets arithmetic mean, uses C
post is averagerepresent.
4. the appraisal procedure of a kind of thermal power generation corporations operations staff dust exposure concentration as claimed in claim 1, is characterized in that: the concrete grammar of described step (3) is:
B1. working time T weekly, T=24*7/m under the long-term average level of this post operations staff is determined;
The mean exposure dust concentration C of the mean concentration of this 1 cycle dust exposure in post represents operations staff weekly T hour working time
post is average=C
t;
B2. according to national regulation by the standard limit of PC-TWA by the standard limit being adjusted to weekly weekly T hour for 40 hours, use PC-TWA
trepresent, by C
twith PC-TWA
tcompare, determine whether to exceed standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506157.6A CN105043953A (en) | 2015-08-17 | 2015-08-17 | Method for estimating dust exposure concentration for operating personnel of thermal power enterprise |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506157.6A CN105043953A (en) | 2015-08-17 | 2015-08-17 | Method for estimating dust exposure concentration for operating personnel of thermal power enterprise |
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| CN105043953A true CN105043953A (en) | 2015-11-11 |
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| CN201510506157.6A Pending CN105043953A (en) | 2015-08-17 | 2015-08-17 | Method for estimating dust exposure concentration for operating personnel of thermal power enterprise |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225996A (en) * | 2017-12-26 | 2018-06-29 | 中煤科工集团重庆研究院有限公司 | Mine operation personnel breath dust accumulation dust receiving amount calculation method and test system |
| CN110020761A (en) * | 2018-01-09 | 2019-07-16 | 中国石油化工股份有限公司 | Petrochemical industry dust work occupational hazards exposure appraisal procedure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103743843A (en) * | 2014-01-26 | 2014-04-23 | 山东安和安全技术研究院有限公司 | Method for detecting chloroacetic acid in air in workplace |
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2015
- 2015-08-17 CN CN201510506157.6A patent/CN105043953A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743843A (en) * | 2014-01-26 | 2014-04-23 | 山东安和安全技术研究院有限公司 | Method for detecting chloroacetic acid in air in workplace |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国卫生部: "《中华人民共和国国家职业卫生标准 非常规工作制条件下职业接触限值调整指南（征集意见稿）》", 《百度文库 HTTPS://WENKU.BAIDU.COM/VIEW/72D3A91CCAAEDD3383C4D3D1.HTML》 * |
| 罗晓芳 等.: "《工作场所化学有害因素40小时时间加权平均浓度计算方法探讨》", 《中华劳动卫生职业病杂志》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225996A (en) * | 2017-12-26 | 2018-06-29 | 中煤科工集团重庆研究院有限公司 | Mine operation personnel breath dust accumulation dust receiving amount calculation method and test system |
| CN108225996B (en) * | 2017-12-26 | 2019-12-06 | 中煤科工集团重庆研究院有限公司 | Mine operation personnel breath dust accumulation dust receiving amount calculation method and test system |
| CN110020761A (en) * | 2018-01-09 | 2019-07-16 | 中国石油化工股份有限公司 | Petrochemical industry dust work occupational hazards exposure appraisal procedure |
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Application publication date: 20151111 |
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