CN106321202A - 房车排气管余热回收装置 - Google Patents

房车排气管余热回收装置 Download PDF

Info

Publication number
CN106321202A
CN106321202A CN201610829418.2A CN201610829418A CN106321202A CN 106321202 A CN106321202 A CN 106321202A CN 201610829418 A CN201610829418 A CN 201610829418A CN 106321202 A CN106321202 A CN 106321202A
Authority
CN
China
Prior art keywords
pipe
tail gas
wall
heat
exhaust pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610829418.2A
Other languages
English (en)
Inventor
纪发跃
纪发洲
左国进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Gallop Rv Co Ltd
Original Assignee
Anhui Gallop Rv Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Gallop Rv Co Ltd filed Critical Anhui Gallop Rv Co Ltd
Priority to CN201610829418.2A priority Critical patent/CN106321202A/zh
Publication of CN106321202A publication Critical patent/CN106321202A/zh
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/006Making ferrous alloys compositions used for making ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/008Ferrous alloys, e.g. steel alloys containing tin
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/10Ferrous alloys, e.g. steel alloys containing cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/12Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/14Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/16Ferrous alloys, e.g. steel alloys containing copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/60Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16Selection of particular materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/02Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2510/00Surface coverings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

一种房车排气管余热回收装置,包括尾气管,水箱,板式换热器,泵体;所述尾气管由三段直径依次缩小的管体在端处通过焊接连接而成,尾气管末端与尾气弯管连接,尾气弯管和冷水弯管交错紧密排列在板式换热器上,尾气弯管另一端为尾气排出口,冷水弯管一端与水箱底部的出水口连接,另一端与缠绕在尾气管外壁上的弯曲管连接。通过将尾气管设置为直径逐渐缩小的三段,与管体内尾气温度逐渐降低相匹配,能够充分利用尾气管壁的余热,在尾气管外壁和缠绕在尾气管外壁上的弯曲管外壁分别蒸镀一层传热层和吸热层,进一步提高余热利用效率。

Description

房车排气管余热回收装置
技术领域
本发明涉及余热回收技术领域,具体涉及一种房车排气管余热回收装置。
背景技术
汽车在行驶过程中,所排出的尾气含热非常高,从而会使汽车排气管发烫,排气管散热非常慢,排气管长时间受热不仅会影响其使用寿命,而且这些热量现在也没有进行再利用,不仅污染环境,而且造成能源的浪费,房车作为人们户外游玩的新选择,得到了越来越来人的青睐,作为一种移动式移动装置,对于能源的利用效率就显得尤为重要,特别是尾气管余热的有效利用。
发明内容
本发明为解决上述问题,提供一种房车排气管余热回收装置。
本发明所要解决的技术问题采用以下的技术方案来实现:
一种房车排气管余热回收装置,包括尾气管,水箱,板式换热器,泵体;所述尾气管由三段直径依次缩小的管体在端处通过焊接连接而成,分别为第一管体、第二管体、第三管体,所述第一管体一端为尾气入口,第三管体另一端与所述板式换热器上的尾气弯管一端密封连接,所述尾气弯管与冷水弯管交错紧密排列在板式换热器上,尾气弯管另一端为尾气排出口,冷水弯管一端与水箱底部的出水口连接,另一端与缠绕在第一管体、第二管体外壁上的弯曲管连接,所述弯曲管靠近第一管体尾气入口处与直管连接,所述泵体安装在该直管中,所述直管另一端分为第一分支管和第二分支管,所述第一分支管与水箱上部的入水口连接,第二分支管上安装有阀门。
进一步,所述尾气管外壁蒸镀有传热层,该传热层由以下重量份的原料组成:
碳0.03%-0.04%,硫0.02%-0.06%,磷0.04%-0.07%,锰0.02%-0.05%,硅0.03%-0.08%,钒0.03%-0.08%,钼0.05%-0.09%,钛0.04%-0.07%,铋0.03%-0.04%,石墨烯0.03%-0.08%,余量为铁。
进一步,所述弯曲管外壁蒸镀有吸热层,该吸热层由以下重量份的原料组成:
碳0.13%-0.15%,钼0.02%-0.07%,钛0.04%-0.05%,铋0.05%-0.07%,钴0.01%-0.03%,锡0.02%-0.04%,镁0.02%-0.06%,钕0.03%-0.07%,铝0.04%-0.06%,二氧化钛0.02%-0.06%,铜铝合金粉0.04%-0.08%,余量为铁。
弯曲管外壁包覆有保温层。
本发明的有益效果为:通过将尾气管设置为直径逐渐缩小的三段,与管体内尾气温度逐渐降低相匹配,能够充分利用尾气管壁的余热,将最末端与板式换热器上的尾气弯管连接,可以利用末端的余热先对冷水进行预热,而后再通过缠绕在尾气管外壁上的弯曲管进行进一步加热,一方面对整个尾气管壁的热量进行了利用,另一方面也使得最终排出尾气管的尾气温度降低,在尾气管外壁和缠绕在尾气管外壁上的弯曲管外壁分别蒸镀一层传热层和吸热层,进一步提高余热利用效率。
附图说明
图1为本发明示意图。
具体实施方式:
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合实施例,进一步阐述本发明。
一种房车排气管余热回收装置,包括尾气管1,水箱18,板式换热器7,泵体14;尾气管1由三段直径依次缩小的管体在端处通过焊接连接而成,分别为第一管体2、第二管体3、第三管体4,将尾气管设计为直径逐渐缩小的三段管体可以使尾气管与管体内尾气温度逐渐降低相适应,更有效的利用尾气管中的余热,其中第一管体2一端为尾气入口,第三管体4另一端与板式换热器7上的尾气弯管5一端密封连接,尾气弯管5与冷水弯管6交错紧密排列在板式换热器7上,尾气弯管5另一端为尾气排出口,第三管体4直径与尾气弯管5直径相等,冷水弯管6一端与水箱18底部的出水口8连接,另一端与缠绕在第一管体2、第二管体3外壁上的弯曲管11连接,弯曲管11紧密缠绕在第一管体2、第二管体3外壁上以便充分利用尾气管中的预热,弯曲管11靠近第一管体2尾气入口处与直管12连接,直管12中安装有泵体14,通过泵体14实现水箱18内水的循环,直管12另一端分为第一分支管17和第二分支管15,第一分支管17与水箱18上部的入水口10连接,第二分支管15上安装有阀门16,通过第二分支管15可以直接使用经过尾气管余热加热过的热水而不需再经过水箱,保证了水温。直管12、第一分支管17、第二分支管15外壁分别包裹有保温材料13,保证水体在传输过程中热量不被散发。水箱18设置有中空层9,保证水箱内水的温度。
尾气管1外壁蒸镀有传热层,该传热层由以下重量份的原料组成:
碳0.03%-0.04%,硫0.02%-0.06%,磷0.04%-0.07%,锰0.02%-0.05%,硅0.03%-0.08%,钒0.03%-0.08%,钼0.05%-0.09%,钛0.04%-0.07%,铋0.03%-0.04%,石墨烯0.03%-0.08%,余量为铁。
弯曲管11外壁蒸镀有吸热层,该吸热层由以下重量份的原料组成:
碳0.13%-0.15%,钼0.02%-0.07%,钛0.04%-0.05%,铋0.05%-0.07%,钴0.01%-0.03%,锡0.02%-0.04%,镁0.02%-0.06%,钕0.03%-0.07%,铝0.04%-0.06%,二氧化钛0.02%-0.06%,铜铝合金粉0.04%-0.08%,余量为铁。
弯曲管11外壁包覆有保温层。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的仅为本发明的优选例,并不用来限制本发明,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (8)

1.一种房车排气管余热回收装置,包括尾气管,水箱,板式换热器,泵体;其特征在于:所述尾气管由三段直径依次缩小的管体在端处通过焊接连接而成,分别为第一管体、第二管体、第三管体,所述第一管体一端为尾气入口,第三管体另一端与所述板式换热器上的尾气弯管一端密封连接,所述尾气弯管与冷水弯管交错紧密排列在板式换热器上,尾气弯管另一端为尾气排出口,冷水弯管一端与水箱底部的出水口连接,另一端与缠绕在第一管体、第二管体外壁上的弯曲管连接,所述弯曲管靠近第一管体尾气入口处与直管连接,所述泵体安装在该直管中,所述直管另一端分为第一分支管和第二分支管,所述第一分支管与水箱上部的入水口连接,第二分支管上安装有阀门。
2.如权利要求1所述的房车排气管余热回收装置,其特征在于,所述尾气管外壁蒸镀有传热层,该传热层由以下重量份的原料组成:
碳0.03%-0.04%,硫0.02%-0.06%,磷0.04%-0.07%,锰0.02%-0.05%,硅0.03%-0.08%,钒0.03%-0.08%,钼0.05%-0.09%,钛0.04%-0.07%,铋0.03%-0.04%,石墨烯0.03%-0.08%,余量为铁。
3.如权利要求1或2所述的房车排气管余热回收装置,其特征在于,所述弯曲管外壁蒸镀有吸热层,该吸热层由以下重量份的原料组成:
碳0.13%-0.15%,钼0.02%-0.07%,钛0.04%-0.05%,铋0.05%-0.07%,钴0.01%-0.03%,锡0.02%-0.04%,镁0.02%-0.06%,钕0.03%-0.07%,铝0.04%-0.06%,二氧化钛0.02%-0.06%,铜铝合金粉0.04%-0.08%,余量为铁。
4.如权利要求1所述的房车排气管余热回收装置,其特征在于,所述第三管体直径与所述尾气弯管直径相等。
5.如权利要求1所述的房车排气管余热回收装置,其特征在于,所述弯曲管紧密缠绕在第一管体、第二管体外壁上。
6.如权利要求1所述的房车排气管余热回收装置,其特征在于,所述直管、第一分支管、第二分支管外壁分别包裹有保温材料。
7.如权利要求1所述的房车排气管余热回收装置,其特征在于,所述水箱设置有中空层,保证水箱内水的温度。
8.如权利要求1所述的房车排气管余热回收装置,其特征在于,所述弯曲管外壁包覆有保温层。
CN201610829418.2A 2016-09-18 2016-09-18 房车排气管余热回收装置 Pending CN106321202A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610829418.2A CN106321202A (zh) 2016-09-18 2016-09-18 房车排气管余热回收装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610829418.2A CN106321202A (zh) 2016-09-18 2016-09-18 房车排气管余热回收装置

Publications (1)

Publication Number Publication Date
CN106321202A true CN106321202A (zh) 2017-01-11

Family

ID=57786933

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610829418.2A Pending CN106321202A (zh) 2016-09-18 2016-09-18 房车排气管余热回收装置

Country Status (1)

Country Link
CN (1) CN106321202A (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201377365Y (zh) * 2009-02-24 2010-01-06 新疆塔林石油科技有限公司 钻井柴油机烟气余热回收利用装置
CN202420262U (zh) * 2011-12-21 2012-09-05 天津商业大学 换热管单元、翅片管式空冷冷凝器和冷却空气蒸发器
CN104153856A (zh) * 2014-07-29 2014-11-19 三一汽车制造有限公司 一种水箱加热装置及混凝土搅拌运输车
CN104495811A (zh) * 2014-12-12 2015-04-08 盐城市新能源化学储能与动力电源研究中心 一种石墨烯复合材料及其制备方法
CN204461124U (zh) * 2014-11-27 2015-07-08 山东盛宝传热科技有限公司 一种逆流蒸发式凝汽器的管束
CN204623360U (zh) * 2015-04-03 2015-09-09 广西吉宽太阳能设备有限公司 房车热水供给装置
CN105240156A (zh) * 2015-11-06 2016-01-13 河海大学常州校区 一种房车尾气余热自利用系统
CN206111302U (zh) * 2016-09-18 2017-04-19 安徽海驰房车有限公司 房车排气管余热回收装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201377365Y (zh) * 2009-02-24 2010-01-06 新疆塔林石油科技有限公司 钻井柴油机烟气余热回收利用装置
CN202420262U (zh) * 2011-12-21 2012-09-05 天津商业大学 换热管单元、翅片管式空冷冷凝器和冷却空气蒸发器
CN104153856A (zh) * 2014-07-29 2014-11-19 三一汽车制造有限公司 一种水箱加热装置及混凝土搅拌运输车
CN204461124U (zh) * 2014-11-27 2015-07-08 山东盛宝传热科技有限公司 一种逆流蒸发式凝汽器的管束
CN104495811A (zh) * 2014-12-12 2015-04-08 盐城市新能源化学储能与动力电源研究中心 一种石墨烯复合材料及其制备方法
CN204623360U (zh) * 2015-04-03 2015-09-09 广西吉宽太阳能设备有限公司 房车热水供给装置
CN105240156A (zh) * 2015-11-06 2016-01-13 河海大学常州校区 一种房车尾气余热自利用系统
CN206111302U (zh) * 2016-09-18 2017-04-19 安徽海驰房车有限公司 房车排气管余热回收装置

Similar Documents

Publication Publication Date Title
JP6802064B2 (ja) 熱エネルギー貯蔵のための要素
CN104729081A (zh) 一种节能型热风炉
CN205332851U (zh) 盘管式换热器
CN206111302U (zh) 房车排气管余热回收装置
CN207316970U (zh) 一种u型换热器
CN106321202A (zh) 房车排气管余热回收装置
CN204478477U (zh) 一种节能型热风炉
CN100552319C (zh) 一种烟道烟气余热回收装置
CN215258499U (zh) 一种节能式高密度聚乙烯保温管
CN206429866U (zh) 一种空温式组合型lng气化系统
CN210512754U (zh) 一种氯化法钛白粉生产中的冷却装置
CN213505991U (zh) 一种硝酸生产用氨氧化炉的水冷壁管组
CN208765545U (zh) 一种新型废气热回收换热器
CN210070694U (zh) 一种具有余热回收功能的高温固体转运设备及其余热回收装置
CN207674977U (zh) 一种玻璃窑炉余热回收装置
CN206107150U (zh) 一种新型房车水循环系统
CN106679461A (zh) 一种用于干馏气热回收的管道
CN207893774U (zh) 废气焚烧炉
CN206521440U (zh) 一种气水分离装置
CN105258473B (zh) 一种行线的烘干设备
CN210486106U (zh) 一种用于热能动力设备的热能循环利用装置
CN102338555A (zh) 一种干燥塔系统
CN205641543U (zh) 一种3000立方无水电热加热器
CN203258283U (zh) 热风管道波纹内带排放管膨胀节
CN204056832U (zh) 一种新型沥青储罐

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170111