Article(id=1320442559407698314, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1320442558581424898, articleNumber=null, orderNo=null, doi=10.11847/zgggws1146353, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730476800000, receivedDateStr=2024-11-02, revisedDate=1735488000000, revisedDateStr=2024-12-30, acceptedDate=1763308800000, acceptedDateStr=2025-11-17, onlineDate=1792747638799, onlineDateStr=2026-10-23, pubDate=1770652800000, pubDateStr=2026-02-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792747638799, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792747638799, creator=13701087609, updateTime=1792747638799, updator=13701087609, issue=Issue{id=1320442558581424898, tenantId=1146029695717560320, journalId=1319373219989389464, year='2026', volume='42', issue='2', pageStart='129', pageEnd='256', issueExtLink='null', onlineDate='null', pubDate='1770652800000', pubDateStr='2026-02-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792747638602, creator='13701087609', updateTime=1792748118043, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320444569574031427, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1320442558581424898, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320444569578225732, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1320442558581424898, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=185, endPage=193, ext={EN=ArticleExt(id=1320442559588053387, articleId=1320442559407698314, tenantId=1146029695717560320, journalId=1319373219989389464, language=EN, title=Design and effect evaluation on a local negative pressure isolation protection system on sickbed, columnId=1320438240595792385, journalTitle=Chinese Journal of Public Health, columnName=Experimental Study, runingTitle=null, highlight=null, articleAbstract=
Objective To design a local negative pressure isolation protection system on sickbed for infectious patients and conduct experimental research on its performance to analyze and evaluate the reliability and safety of its isolation protection against biological aerosol.
Methods A local negative pressure isolation protection system on sickbed was designed with consideration to the structural type and materials. Then, the system was tested in terms of subjects′ experience, static and dynamic pressure difference, and noise. Particularly, the isolation protection performance of this system against biological aerosol in micro-circumstance airtight cabin was tested.
Results The local negative pressure isolation protection system on sickbed quickly established a stable local negative pressure difference within 1 min, with a maximum fluctuation error of 4.6%. The average noise under the maximum air volume was 64.2 dB(A). When Serratia marcescens aerosol with a maximum concentration of 1.4 × 1011 CFU/mL was atomized inside the isolation hood, the aerosol leakage rate outside the hood was 0, which showed that the local negative pressure isolation protection system on sickbed could effectively cut off the transmission of pathogenic microorganisms in the air. Moreover, the subjects had a good subjective experience.
Conclusions The designed local negative pressure isolation protection system on sickbed is comfortable, lightweight, and portable, which can be used to reduce the risk of microbial spread among respiratory patients.
, authors=Xinmiao WANG
1, 2, Yiran SHANG
1, 2, Yanhua FANG
1, 2, Zongxing ZHANG
1, 2, Ying YI
1, 2, Jinhui WU
1, 2, authorsList=Xinmiao WANG, Yiran SHANG, Yanhua FANG, Zongxing ZHANG, Ying YI, Jinhui WU, authorCompany=null, correspAuthors=Jinhui WU, authorNote=null, correspAuthorsNote=
, copyrightStatement=Copyright © 2026 Chinese Journal of Public Health. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320442563077714338, articleId=1320442559407698314, tenantId=1146029695717560320, journalId=1319373219989389464, language=CN, title=病床局部负压隔离防护装置设计及效果评价, columnId=1320438240746787332, journalTitle=中国公共卫生, columnName=实验研究, runingTitle=null, highlight=null, articleAbstract=
目的 设计一种供传染病患者使用的病床局部负压隔离防护装置,并对其性能进行实验测试,评价其隔离防护的可靠性和安全性。
方法 从结构型式与材料方面设计病床局部负压隔离防护装置,对该病床局部负压隔离防护装置进行人员使用感受评估以及静、动态压差和噪声测试;重点实验分析其在生物气溶胶环境下的隔离防护性能。
结果 设计的病床局部负压隔离防护装置能够在1 min内快速建立准确稳定的局部负压差,最大波动误差为4.6%;最大风量下平均噪声为64.2 dB(A);在隔离罩内雾化发生最大浓度为1.4×1011 CFU/mL的粘质沙雷气溶胶,罩外气溶胶泄漏率为0,可有效切断病原微生物在空气中的传播,且受试者主观体验良好。
结论 设计的病床局部负压隔离防护装置体感舒适、轻质便携,能有效降低呼吸道病员微生物扩散风险。
, authors=王心淼
1, 2, 商怡然
1, 2, 房艳华
1, 2, 张宗兴
1, 2, 衣颖
1, 2, 吴金辉
1, 2, *, *, authorsList=王心淼, 商怡然, 房艳华, 张宗兴, 衣颖, 吴金辉, authorCompany=null, correspAuthors=吴金辉, authorNote=
王心淼(1989—),工程师,博士,研究方向:生物防护材料与技术
, correspAuthorsNote=
, copyrightStatement=版权所有 © 《中国公共卫生》编辑部 2026, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=hHXeniNyL+7jYlmboB+Wlw==, magXml=mtaZgqZee0ZkX1FxE/HLqQ==, pdfUrl=null, pdf=1fWmP9c/CInjTQRMQnxRvQ==, pdfFileSize=27144564, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=GveafxJNRp/5JNkcN1LQag==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=sj35/f4bVQadut+D06Pn2A==, mapNumber=null, fund=null)}, authors=[Author(id=1320442563484561834, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320442563568447917, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, authorId=1320442563484561834, language=EN, stringName=Xinmiao WANG, firstName=Xinmiao, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1Systems Engineering Institute, Academy of Military Science, Chinese People′s Liberation Army, Beijing 100166, China
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1中国人民解放军军事科学院系统工程研究院,北京 100166
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1Systems Engineering Institute, Academy of Military Science, Chinese People′s Liberation Army, Beijing 100166, China
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1中国人民解放军军事科学院系统工程研究院,北京 100166
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1Systems Engineering Institute, Academy of Military Science, Chinese People′s Liberation Army, Beijing 100166, China
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1Systems Engineering Institute, Academy of Military Science, Chinese People′s Liberation Army, Beijing 100166, China
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1中国人民解放军军事科学院系统工程研究院,北京 100166
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Schematic diagram of the structure of the local negative pressure isolation protection system on sickbed, figureFileSmall=y1qc8i5qB02pzZihCyZ/zQ==, figureFileBig=GveafxJNRp/5JNkcN1LQag==, tableContent=null), ArticleFig(id=1320442567347515862, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图1, caption=
病床局部负压隔离防护装置使用示意图, figureFileSmall=y1qc8i5qB02pzZihCyZ/zQ==, figureFileBig=GveafxJNRp/5JNkcN1LQag==, tableContent=null), ArticleFig(id=1320442567557231063, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Fig.2, caption=
Schematic diagram of the components of the local negative pressure isolation protection system on sickbed: (a) hood structure, (b) primary filter, (c) support skeleton, and (d) exhaust filter box, figureFileSmall=kbCwT3iJaLIutYmxK2Ey0Q==, figureFileBig=mJyb8eUa6kzGAtNzZZ0zgQ==, tableContent=null), ArticleFig(id=1320442567628534232, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图2, caption=
病床局部负压隔离防护装置各部件结构示意图注:a:罩体结构;b:一级过滤器;c:支撑骨架;d:排风过滤箱。
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Test design of bioaerosol isolation capability: (a) the isolation hood remains half opening and (b) the isolation hood remains closed, figureFileSmall=9g+I9iQ4uD01IrCA49B7Ew==, figureFileBig=Weu2juRThQKV+RkV5qqQ/A==, tableContent=null), ArticleFig(id=1320442567771140570, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图3, caption=
气溶胶隔离能力测试实验设计注:(a) 隔离罩半开, (b)隔离罩闭合。
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Test of bioaerosol isolation capability, figureFileSmall=piKE+bb0ugSHBFaWcJ0p2Q==, figureFileBig=yVPUhKbzGq5yqmETSqO7Vw==, tableContent=null), ArticleFig(id=1320442567922135516, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图4, caption=
生物气溶胶隔离能力测试实验, figureFileSmall=piKE+bb0ugSHBFaWcJ0p2Q==, figureFileBig=yVPUhKbzGq5yqmETSqO7Vw==, tableContent=null), ArticleFig(id=1320442568014410205, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Fig.5, caption=
Evaluation test of the subjects' feelings of using the local negative pressure isolation protection system on sickbed, figureFileSmall=s+/0LufU+hyVpfqXnawPbQ==, figureFileBig=RkL9pvtB1g749D2oJeG/yQ==, tableContent=null), ArticleFig(id=1320442568098296286, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图5, caption=
受试者使用感受评估实验, figureFileSmall=s+/0LufU+hyVpfqXnawPbQ==, figureFileBig=RkL9pvtB1g749D2oJeG/yQ==, tableContent=null), ArticleFig(id=1320442568173793759, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Fig.6, caption=
Dynamic pressure difference curve of the system during uniform respiration, figureFileSmall=S2SwETYvA979qMKVS1pB1A==, figureFileBig=4bo7yNZDN5gQelJS2jx54A==, tableContent=null), ArticleFig(id=1320442568240902624, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图6, caption=
正常呼吸状态下动态压差曲线, figureFileSmall=S2SwETYvA979qMKVS1pB1A==, figureFileBig=4bo7yNZDN5gQelJS2jx54A==, tableContent=null), ArticleFig(id=1320442568308011489, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Fig.7, caption=
Dynamic pressure difference curve of the system during coughing, figureFileSmall=NauOiH3eWM+9C1Dpo+0eUQ==, figureFileBig=xCki05H3OB8JKPlGwhY/nw==, tableContent=null), ArticleFig(id=1320442568400286178, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图7, caption=
咳嗽时动态压差曲线, figureFileSmall=NauOiH3eWM+9C1Dpo+0eUQ==, figureFileBig=xCki05H3OB8JKPlGwhY/nw==, tableContent=null), ArticleFig(id=1320442568484172259, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Fig.8, caption=
Number of CFUs detected in external environment with the isolation hood half-opening, figureFileSmall=ha6p1xLWh/4yVsLs+B33Yw==, figureFileBig=PprWo8mNDeKku0w28R/TJQ==, tableContent=null), ArticleFig(id=1320442568551281124, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图8, caption=
隔离罩半开时各采样点的微生物气溶胶浓度, figureFileSmall=ha6p1xLWh/4yVsLs+B33Yw==, figureFileBig=PprWo8mNDeKku0w28R/TJQ==, tableContent=null), ArticleFig(id=1320442568618389989, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Fig.9, caption=
Number of CFUs detected in external environment with the isolation hood closed, figureFileSmall=7uhzc9ImXASIB92IutjXoA==, figureFileBig=8yzD4J0yRX+w7dmNzElzWQ==, tableContent=null), ArticleFig(id=1320442568685498854, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=图9, caption=
隔离罩闭合时各采样点的微生物气溶胶浓度, figureFileSmall=7uhzc9ImXASIB92IutjXoA==, figureFileBig=8yzD4J0yRX+w7dmNzElzWQ==, tableContent=null), ArticleFig(id=1320442568748413415, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Tab.1, caption=
Instruments and equipment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 型号 | 生产厂家 | 产地 |
|---|
Collision雾化生物 气溶胶发生器 | CN31I | BGI公司 | 美国 |
六级安德森空气 微生物采样器 | — | 北京慧荣和科技有限公司 | 中国 |
六级安德森空气 微生物采样器 | FA-1 | 潍坊艾沃环保设备有限公司 | 中国 |
| 恒温摇床 | HNY-2102C | 天津欧诺仪器股份有限公司 | 中国 |
| 生化培养箱 | BSP-150 | 上海博迅生物仪器股份有限公司 | 中国 |
| 无菌操作台 | SW-CJ-1FD | AIRTECH公司 | 日本 |
| 旋涡式振动器 | VORTEX 1 | 艾卡仪器设备有限公司 | 中国 |
| 声级计 | AWA5636 | 杭州爱华仪器有限公司 | 中国 |
| 电子天平 | AUW-220D | 岛津公司 | 日本 |
| 过氧化氢消毒机 | 自制 | 自制 | 中国 |
| 正压生物防护服 | 自制 | 自制 | 中国 |
| 高压蒸汽灭菌锅 | MVS-83 | 冰山松洋生物科技(大连) 有限公司 | 中国 |
| 气密实验室 | 定制 | 天津昌特净化科技有限公司 | 中国 |
), ArticleFig(id=1320442568832299496, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=表1, caption=
仪器与设备
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 型号 | 生产厂家 | 产地 |
|---|
Collision雾化生物 气溶胶发生器 | CN31I | BGI公司 | 美国 |
六级安德森空气 微生物采样器 | — | 北京慧荣和科技有限公司 | 中国 |
六级安德森空气 微生物采样器 | FA-1 | 潍坊艾沃环保设备有限公司 | 中国 |
| 恒温摇床 | HNY-2102C | 天津欧诺仪器股份有限公司 | 中国 |
| 生化培养箱 | BSP-150 | 上海博迅生物仪器股份有限公司 | 中国 |
| 无菌操作台 | SW-CJ-1FD | AIRTECH公司 | 日本 |
| 旋涡式振动器 | VORTEX 1 | 艾卡仪器设备有限公司 | 中国 |
| 声级计 | AWA5636 | 杭州爱华仪器有限公司 | 中国 |
| 电子天平 | AUW-220D | 岛津公司 | 日本 |
| 过氧化氢消毒机 | 自制 | 自制 | 中国 |
| 正压生物防护服 | 自制 | 自制 | 中国 |
| 高压蒸汽灭菌锅 | MVS-83 | 冰山松洋生物科技(大连) 有限公司 | 中国 |
| 气密实验室 | 定制 | 天津昌特净化科技有限公司 | 中国 |
), ArticleFig(id=1320442568911991273, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Tab.2, caption=
Reagents and materials
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| 试剂与材料名称 | 生产厂家 | 产地 |
|---|
| 黏质沙雷(ATCC.8039)菌株 | 中国工业微生物菌种保藏管理中心 | 中国 |
| 营养琼脂 | 北京奥博星生物技术有限公司 | 中国 |
| 营养肉汤 | 北京奥博星生物技术有限公司 | 中国 |
| 营养琼脂培养基 | 常德比克曼生物科技有限公司 | 中国 |
| 生理盐水 | 青岛海氏海诺医疗用品有限公司 | 中国 |
| 无水乙醇 | 天津市风船化学试剂科技有限公司 | 中国 |
| 超纯水 | 自制 | 中国 |
), ArticleFig(id=1320442568983294442, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=表2, caption=
试剂与材料
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试剂与材料名称 | 生产厂家 | 产地 |
|---|
| 黏质沙雷(ATCC.8039)菌株 | 中国工业微生物菌种保藏管理中心 | 中国 |
| 营养琼脂 | 北京奥博星生物技术有限公司 | 中国 |
| 营养肉汤 | 北京奥博星生物技术有限公司 | 中国 |
| 营养琼脂培养基 | 常德比克曼生物科技有限公司 | 中国 |
| 生理盐水 | 青岛海氏海诺医疗用品有限公司 | 中国 |
| 无水乙醇 | 天津市风船化学试剂科技有限公司 | 中国 |
| 超纯水 | 自制 | 中国 |
), ArticleFig(id=1320442569046209003, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Tab.3, caption=
Subjects' feeling scores
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| 受试者序号 | 年龄/岁 | 视野情况评分 | 呼吸情况评分 | 耳鸣情况评分 | 头晕情况评分 | 与外界交流情况评分 | 使用感受总评分 |
|---|
| 1 | 34 | 3 | 2 | 3 | 3 | 2 | 13 |
| 2 | 42 | 3 | 3 | 3 | 3 | 3 | 15 |
| 3 | 45 | 2 | 2 | 3 | 2 | 3 | 12 |
| 4 | 53 | 3 | 3 | 2 | 3 | 2 | 13 |
| 5 | 24 | 2 | 3 | 3 | 2 | 2 | 12 |
| 6 | 27 | 3 | 3 | 3 | 2 | 3 | 14 |
| 7 | 28 | 3 | 3 | 3 | 3 | 2 | 14 |
| 8 | 29 | 3 | 3 | 3 | 3 | 3 | 15 |
| 9 | 32 | 2 | 2 | 2 | 3 | 3 | 12 |
| 10 | 31 | 3 | 2 | 2 | 3 | 2 | 12 |
| 11 | 36 | 2 | 2 | 3 | 3 | 3 | 13 |
| 12 | 37 | 3 | 2 | 2 | 2 | 2 | 11 |
| 13 | 38 | 3 | 3 | 3 | 3 | 1 | 13 |
| 14 | 45 | 3 | 3 | 3 | 2 | 3 | 14 |
| 15 | 46 | 3 | 2 | 3 | 2 | 2 | 12 |
| 16 | 42 | 3 | 3 | 3 | 3 | 2 | 14 |
| 17 | 58 | 2 | 3 | 2 | 3 | 3 | 13 |
| 18 | 27 | 3 | 3 | 2 | 3 | 3 | 14 |
| 19 | 29 | 3 | 2 | 3 | 3 | 2 | 13 |
| 20 | 30 | 3 | 2 | 3 | 3 | 2 | 13 |
| 21 | 35 | 3 | 3 | 2 | 3 | 2 | 13 |
| 22 | 36 | 3 | 2 | 3 | 3 | 2 | 13 |
| 23 | 47 | 2 | 2 | 3 | 3 | 3 | 13 |
| 24 | 43 | 3 | 3 | 3 | 3 | 2 | 14 |
| 25 | 38 | 2 | 3 | 3 | 3 | 3 | 14 |
| 26 | 42 | 2 | 3 | 2 | 3 | 3 | 13 |
| 27 | 27 | 1 | 3 | 3 | 3 | 2 | 12 |
| 28 | 25 | 3 | 3 | 3 | 3 | 2 | 14 |
| 29 | 29 | 3 | 3 | 3 | 3 | 3 | 15 |
| 30 | 27 | 3 | 3 | 3 | 2 | 3 | 14 |
| 平均值 | 36 | 2.67 | 2.63 | 2.73 | 2.77 | 2.43 | 13.23 |
), ArticleFig(id=1320442569121706476, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=表3, caption=
受试者使用感受评分表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 受试者序号 | 年龄/岁 | 视野情况评分 | 呼吸情况评分 | 耳鸣情况评分 | 头晕情况评分 | 与外界交流情况评分 | 使用感受总评分 |
|---|
| 1 | 34 | 3 | 2 | 3 | 3 | 2 | 13 |
| 2 | 42 | 3 | 3 | 3 | 3 | 3 | 15 |
| 3 | 45 | 2 | 2 | 3 | 2 | 3 | 12 |
| 4 | 53 | 3 | 3 | 2 | 3 | 2 | 13 |
| 5 | 24 | 2 | 3 | 3 | 2 | 2 | 12 |
| 6 | 27 | 3 | 3 | 3 | 2 | 3 | 14 |
| 7 | 28 | 3 | 3 | 3 | 3 | 2 | 14 |
| 8 | 29 | 3 | 3 | 3 | 3 | 3 | 15 |
| 9 | 32 | 2 | 2 | 2 | 3 | 3 | 12 |
| 10 | 31 | 3 | 2 | 2 | 3 | 2 | 12 |
| 11 | 36 | 2 | 2 | 3 | 3 | 3 | 13 |
| 12 | 37 | 3 | 2 | 2 | 2 | 2 | 11 |
| 13 | 38 | 3 | 3 | 3 | 3 | 1 | 13 |
| 14 | 45 | 3 | 3 | 3 | 2 | 3 | 14 |
| 15 | 46 | 3 | 2 | 3 | 2 | 2 | 12 |
| 16 | 42 | 3 | 3 | 3 | 3 | 2 | 14 |
| 17 | 58 | 2 | 3 | 2 | 3 | 3 | 13 |
| 18 | 27 | 3 | 3 | 2 | 3 | 3 | 14 |
| 19 | 29 | 3 | 2 | 3 | 3 | 2 | 13 |
| 20 | 30 | 3 | 2 | 3 | 3 | 2 | 13 |
| 21 | 35 | 3 | 3 | 2 | 3 | 2 | 13 |
| 22 | 36 | 3 | 2 | 3 | 3 | 2 | 13 |
| 23 | 47 | 2 | 2 | 3 | 3 | 3 | 13 |
| 24 | 43 | 3 | 3 | 3 | 3 | 2 | 14 |
| 25 | 38 | 2 | 3 | 3 | 3 | 3 | 14 |
| 26 | 42 | 2 | 3 | 2 | 3 | 3 | 13 |
| 27 | 27 | 1 | 3 | 3 | 3 | 2 | 12 |
| 28 | 25 | 3 | 3 | 3 | 3 | 2 | 14 |
| 29 | 29 | 3 | 3 | 3 | 3 | 3 | 15 |
| 30 | 27 | 3 | 3 | 3 | 2 | 3 | 14 |
| 平均值 | 36 | 2.67 | 2.63 | 2.73 | 2.77 | 2.43 | 13.23 |
), ArticleFig(id=1320442569213981165, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Tab.4, caption=
Static pressure difference (Pa)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测试次数 | 风量100 /(m3/h) | 风量200/ (m3/h) | 风量400/ (m3/h) |
|---|
| 1 | −16.2 | −20.7 | −32.8 |
| 2 | −16.9 | −20.4 | −33.5 |
| 3 | −16.4 | −20.1 | −33.3 |
| 平均值 | −16.5 | −20.4 | −33.2 |
), ArticleFig(id=1320442569289478638, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=表4, caption=
静态压差(Pa)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测试次数 | 风量100 /(m3/h) | 风量200/ (m3/h) | 风量400/ (m3/h) |
|---|
| 1 | −16.2 | −20.7 | −32.8 |
| 2 | −16.9 | −20.4 | −33.5 |
| 3 | −16.4 | −20.1 | −33.3 |
| 平均值 | −16.5 | −20.4 | −33.2 |
), ArticleFig(id=1320442569364976111, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=EN, label=Tab.5, caption=
Noise data dB(A)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测试次数 | 左耳噪声 | 右耳噪声 | 平均值 |
|---|
| 1 | 64.9 | 63.5 | 64.2 |
| 2 | 64.1 | 64.7 | 64.4 |
| 3 | 64.4 | 63.6 | 64.0 |
| 平均值 | 64.5 | 63.9 | 64.2 |
), ArticleFig(id=1320442569427890672, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320442559407698314, language=CN, label=表5, caption=
噪声数据dB(A)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测试次数 | 左耳噪声 | 右耳噪声 | 平均值 |
|---|
| 1 | 64.9 | 63.5 | 64.2 |
| 2 | 64.1 | 64.7 | 64.4 |
| 3 | 64.4 | 63.6 | 64.0 |
| 平均值 | 64.5 | 63.9 | 64.2 |
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