CN106595353A - 热交换器 - Google Patents

热交换器 Download PDF

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Publication number
CN106595353A
CN106595353A CN201610907503.6A CN201610907503A CN106595353A CN 106595353 A CN106595353 A CN 106595353A CN 201610907503 A CN201610907503 A CN 201610907503A CN 106595353 A CN106595353 A CN 106595353A
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heat
isocon
heat exchanger
choke valve
sleeve
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简·姆根伯格
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Borsig GmbH
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Borsig GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0059—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for petrochemical plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/06—Derivation channels, e.g. bypass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ceramic Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust Silencers (AREA)

Abstract

热交换器，其包括多个传热管(3)和居中布置的分流管(4)，传热管(3)和分流管(4)均被支撑在入气室(7)的管板(5)和出气室(8)的管板(6)之间，其中各管板(5、6)连接到圆柱形套筒，在圆柱形套筒内形成套筒空间(9)，传热管(3)和分流管(4)被封装在套筒空间(9)内，冷却剂(11)能够被引入到套筒空间(9)内。控制装置(16)包括节流阀(18)和驱动器(19)，其布置在分流管(4)的出口端(17)处。控制装置(16)用于使热交换器(1)的出气温度处于一定的温度范围，其中节流阀(18)能够控制来自分流管(4)的未冷却的处理气气流(14)的排放速度和排放量，节流阀(18)可通过控制装置(16)来调节。

Description

热交换器
技术领域
本发明涉及热交换器，其包括设置于圆柱形套筒中的多个传热管和居中布置的分流管，这些管均被支撑在入气室的管板和出气室的管板之间，其中这些管板被连接到圆柱形套筒，圆柱形套筒与管板一起形成套筒空间，传热管和分流管被封装在套筒空间内，冷却剂流经套筒空间。
背景技术
热交换器用于多种化学和石化工艺。在此类工艺中，传热管暴露于套筒侧的管内和管外的不同气态和/或液态介质中。
通常，源于某一工艺的热处理气在此类工艺中被供给到传热管以及供给到分流管中。在其流经传热管的过程中，热处理气通过相应的管套筒将其热量释放给位于套筒空间中的冷却剂。
通常使用水作为冷却剂。通过向冷却剂进行热传递而被冷却的处理气随后流出热交换器。将热交换器的出气温度保持在预定温度范围常常是必要的。
常见分流通常用于设置出气温度。利用控制阀或旋转控制阀或控制塞来时不时地影响出气温度。此类控制装置被布置在分流管的出口端。从DE 28 46 455 B1或EP 0 356648 A1中已知此类控制装置。
热交换器的分流管中的处理气具有非常高的温度。在大多数情况下，此类处理气也会以高速流经分流管。布置在分流管的出口端处的控制装置，例如控制塞或控制阀，由此由于热效应被暴露于非常高的负荷下。
EP 1 498 678 A1公开一种具有分流管的热交换器，其具有作为成形的活塞的封闭装置，该封闭装置具有双壁构造以及其中在活塞的双壁中形成冷却导管以供冷却剂流动。冷却剂经由用于驱动活塞的在杆体中提供的冷却剂线路被供给到活塞的双壁中的冷却导管中。
DE 39 13 422 A1公开一种管束热交换器，其具有居中布置的部分流管，其在气流的排放侧端提供控制阀。控制阀具有双壁构造且在其内部空间中配备导管，冷却剂可以通过这些导管，并经由构造为中空轴的阀轴引入。
DE 10 2005 057 674 B4公开一种处理气加热锅炉，其包括控制装置，其中气流在分流管中排放的速度和量可以通过塞子来控制，该塞子布置在分流管的出口端并可通过控制装置来轴向地调节。该塞子通过流经布置在塞子中的冷却导管的冷媒来冷却。
在现有技术中，用于影响热交换器的排放温度的分流管的控制装置被证明是存在缺点的，此类被冷却的活塞或控制阀易因温度分布受影响，在冷却气流和热冲击情况下失效，从而在此类塞子和控制阀处形成泄漏。因此，现有技术的控制装置不再能够充分地实现通过分流管的此类控制装置影响热交换器的排放温度的任务，由此维护间隔时间将不合需求地变短或热交换器的使用寿命将变得更短。
发明内容
本发明的目的在于提供一种热交换器，其提供一种用于控制一定的处理气温度的可靠的控制装置，该控制装置令人满意地经得起处理气气流的与高温相关的负荷，而无需对控制元件使用冷却剂并且没有此类复杂的构造。
本发明的目的通过专利权利要求1的特征来实现。
从属权利要求中描述了本发明的有利实施例。
本发明的基本目的通过提供一种热交换器来实现，其具有如下优点：
该热交换器包括多个传热管和居中布置的分流管，传热管和分流管均被布置在入气室的管板和出气室的管板之间。各管板被连接到圆柱形套筒，在圆柱形套筒内形成套筒空间。传热管和分流管被封装在套筒空间内。冷却剂流经套筒空间。入口管连接到圆柱形套筒，用于将冷却剂引入到传热管的套筒侧。再者，出口管连接到圆柱形套筒，用于将通过传热管的套筒侧的间接热传递生成的水/蒸汽混合物排出。进入管横向或轴向地被布置在入气室处在沿着气流方向上位于管板之前，用于将热处理气气流在管板的入气侧引入到传热管和到分流管中。排放管横向或轴向地被布置在出气室处在沿着气流方向上位于管板之后，用于在管板的出气侧排出来自传热管的已冷却的处理气气流和来自分流管的未冷却的处理气气流的混合物。控制装置布置在紧邻分流管的出口端，其包括连接到驱动器的节流阀，用于使热交换器的出气温度处于某个温度范围。节流阀能够控制来自分流管的处理气气流的一定的排放速度和排放量，该节流阀被布置在分流管的出口端且可通过控制装置的驱动器来调节。
节流阀有利地由在对高温腐蚀敏感的温度范围中耐高温腐蚀的材料构成。
控制装置的节流阀有利地布置成可由驱动器经双接头调节。
该控制装置的节流阀优选地经轴和双接头连接到驱动器。
该节流阀有利地在两侧布置有集成轴端或轴连接件，集成轴端或轴连接件位于敷于阀壳体的内壁上的隔热体中形成的轴承中，轴布置在出气室的壁中的轴承中，双接头经由轴端和轴连接到驱动器，用于补偿阀壳体中的节流阀的各轴端的轴承与出气室的壁中的轴的轴承之间的膨胀率之差。
该节流阀可被旋转地布置在阀壳体中与气流方向成直角。阀壳体有利地被构造为分流管的以相同直径的延伸或以扩大直径的具有锥形连接物的延伸，锥形连接物作为从分流管的出口端向扩大直径的过渡。
优选地，采用陶瓷材料作为用于节流阀18的耐高温或耐金属粉尘化材料。
基于具有用于通过来自分流管的未冷却的处理气气流将冷却的处理气气流的出气温度调节到某个温度范围中所要求的温度条件的控制装置的热交换器的有利的实施例，提供了可靠的温度影响，这样独立于符合要求的冷却剂供给、所使用的控制元件的冷却效率和冷却剂管线的密封而运行。
在本发明中，使用无需特殊冷却的耐高温或金属粉尘化材料来作为控制元件。由其他材料制成的组件根据这些材料的适用性被布置使得它们与未冷却的处理气的气流隔热到这些组件能够被可靠地使用的程度。
说明书附图
下文将基于附图所示的热交换器的描述更详细地解释本发明的示范实施例。
在这些附图中：
图1示出本发明的缩小尺寸的热交换器的纵向截面，以及
图2示出图1的细部X作为纵向截面的放大尺寸，穿过本发明的热交换器的分流管的出口端，控制装置被布置在出口端区域中。
附图标记如下：
1 热交换器
2 圆柱形套筒
3 传热管
4 分流管
5 处理气气流进入侧的管板
6 处理气气流出口侧的管板
7 入气室
8 出气室
9 套筒空间
10 入口管
11 冷却剂
12 出口管
13 进入管
14 处理气气流
15 排气管
16 控制装置
17 分流管的出口端
18 节流阀
19 驱动器
20 双接头
21 轴
22 阀壳体
23 分流管的隔热体
24 阀壳体的隔热体
25 节流阀的轴端的轴承
26 轴的轴承
27 轴端
28 出气室的壁
29 阀壳体的内壁
30 分流管的内壁
31 锥形连接物
具体实施方式
热交换器1呈垂直布置示意性示出在图1的纵向截面中。此类热交换器1用于多种化学和石化工艺。热交换器1包括多个传热管3和居中布置的分流管4，传热管3和分流管4均被支撑在入气室7的管板5和出气室8的管板6之间。各管板5、6被连接到圆柱形套筒2，在圆柱形套筒2内形成套筒空间9。这些传热管3和分流管4被封装在套筒空间9中。冷却剂11流经套筒空间9。
分流管4被构造成具有比传热管3大的直径。沿着其长度，分流管4在其内管壁30上具有隔热体23，隔热体23用于使得分流管4在处理气气流14流经时基本上不释放任何热量。
正如箭头所指示的，冷却剂11经由至少一个入口管10流入套筒空间9，至少一个入口管10横向地布置在圆柱形套筒2处在沿着处理气气流14的流动方向上位于出气室8的管板6之前。冷却剂11作为水/蒸汽混合物经由至少一个出口管12离开套筒空间9，至少一个出口管12横向地布置在圆柱形套筒2处位于入气室7的管板5之后。冷却过程中形成的水/蒸汽混合物是通过传热管3的套筒侧的间接热传递生成的。
进入管13、13.1横向或轴向地布置在入气室7处在沿着气流方向上位于管板5之前，轴向布置的情况仅由虚线所示，并且正如箭头所示，处理气气流14流经所述进入管13、13.1进入入气室7，并从那进入支撑于管板5中的传热管3的端部和进入分流管4的端部，正如箭头所示。
仅虚线所示的，排放管15、15.1横向或轴向地布置在出气室8处在沿着气流方向上位于管板6之后，并且正如箭头所示，处理气气流14离开出气室8，出气室8连接到支撑于管板6中的传热管3的端部和连接到分流管4的另一端部，从出气室8分离的处理气气流如箭头所示从排放管15、15.1逸出。
控制装置16被布置在分流管4的出口端17。控制装置16包括位于阀壳体22中的节流阀18和布置在热交换器1外的驱动器19。驱动器19连接到轴21和双接头20，进而连接到节流阀18的集成轴端27，并形成传动***。节流阀18布置成可利用连接的双接头20以及利用轴端27通过驱动器19经轴21进行调节。
双接头本质上用于补偿阀壳体22中的节流阀18的各集成轴端27的两个轴承25与轴21的轴承26之间的膨胀率之差。各轴承25形成在隔热体24中，隔热体24敷于阀壳体22的内壁29上。轴承26布置在出气室8的壁28中。
节流阀18可旋转地与气流方向成直角布置于在阀壳体22中。敷于阀壳体22的内壁29上的隔热体24优选地构造为内衬。
如果热交换器1处的现有安装条件足够，则阀壳体22被构造为分流管4的相等直径的延伸。在安装条件局促的情况下，如图2所示的阀壳体22的构造是优选的，分流管4的延伸通过锥形连接物31，锥形连接物31被构造为从分流管的出口端17向扩大直径的过渡。
提供连接到驱动器19的节流阀18用于通过将来自传热管3的已冷却的处理气气流14与来自分流管4的未冷却的处理气气流混合使热交换器1的出气温度处于一定的温度范围。节流阀18可以控制处理气气流14的排放速度和排放量，节流阀18紧邻分流管4的出口端17布置且可通过控制装置16的驱动器19来调节。
节流阀18由在对高温腐蚀敏感的温度范围中耐高温腐蚀的材料制成，该温度范围从约500℃至约850℃的量级。用作节流阀18的控制元件的材料是具有温度稳定性且无需特殊冷却的耐高温或耐金属粉尘化材料。
陶瓷材料，其具有温度稳定性的耐高温或耐金属粉尘化的性质而被用作节流阀18的材料。
由其它材料制成的组件根据这些材料的适用性被布置与未冷却的处理气气流14隔热到使这些组件能够可靠地被使用的程度。

Claims (7)

1.热交换器，其具有多个传热管(3)和居中布置的分流管(4)，传热管(3)和分流管(4)均被支撑在入气室(7)的管板(5)和出气室(8)的管板(6)之间，其中各管板(5、6)连接到圆柱形套筒(2)，在圆柱形套筒(2)内形成套筒空间(9)，传热管(3)和分流管(4)被封装在套筒空间(9)内，冷却剂(11)能够被引入到套筒空间(9)内，所述热交换器具有如下特征：
至少一个入口管(10)，其连接到圆柱形套筒(2)，用于将冷却剂(11)引入到套筒空间(9)中进而到传热管(3)的套筒侧；
至少一个出口管(12)，其连接到圆柱形套筒(2)，用于将通过传热管(3)的套筒侧间接热传递产生的水/蒸汽混合物从套筒空间(9)排出；
进入管(13、13.1)，其横向或轴向地被布置在入气室(7)处在沿着气流方向上位于管板(5)之前，用于将热的处理气气流(14)在管板(5)的入气侧引入到传热管(3)和到分流管(4)中；
排放管(15、15.1)，其横向或轴向地被布置在出气室(8)处在沿着气流方向上位于管板(6)之后，用于在管板(6)的出气侧排出来自传热管(3)的已冷却的处理气气流(14)和来自分流管(4)的未冷却的处理气气流的混合物；以及
控制装置(16)，其包括连接到驱动器(19)的节流阀(18)，用于使热交换器(1)的出气温度处于一定的温度范围，其中可以通过节流阀(18)来控制来自分流管(4)的未冷却的处理气气流(14)的排放速度和排放量，节流阀(18)被布置在分流管(4)的出口端(17)处且通过控制装置(16)驱动器(19)可调节，其中节流阀(18)由在对高温腐蚀敏感的温度范围中耐高温腐蚀的材料制成。
2.如权利要求1所述的热交换器，其特征在于，控制装置(16)的节流阀(18)被布置成可由驱动器(19)经双接头(20)调节。
3.如权利要求1或2所述的热交换器，其特征在于，控制装置(16)的节流阀(18)经轴(21)和双接头(20)连接到驱动器(19)。
4.如权利要求2或3所述的热交换器，其特征在于，节流阀(18)两侧布置有集成轴端(27)，集成轴端(27)位于在敷于阀壳体(22)的内壁(29)上的隔热体(24)中形成的轴承(25)中，轴(21)被布置在出气室(8)的壁(28)中的轴承(26)中，其中双接头(20)经由轴端(27)和轴(21)连接到驱动器(19)，用于补偿阀壳体(22)中的节流阀(18)的各轴端(27)的相应轴承(25)与布置在出气室(8)的壁(28)中的轴(21)的轴承(26)之间的膨胀率之差。
5.如权利要求1至4之一所述的热交换器，其特征在于，节流阀(18)被可旋转地布置在阀壳体(22)中与气流方向成直角。
6.如权利要求1至5之一所述的热交换器，其特征在于，阀壳体(22)被构造为分流管(4)的以相同直径的延伸或以扩大直径的具有锥形连接物(31)的延伸，锥形连接物(31)作为从分流管的出口端(17)向扩大直径的过渡。
7.如权利要求1至6之一所述的热交换器，其特征在于，节流阀(18)的耐金属粉尘化或耐高温材料由陶瓷材料构成。
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