WO2023077612A1 - 一种工业蒸汽凝结水回收利用系统 - Google Patents

一种工业蒸汽凝结水回收利用系统 Download PDF

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Publication number
WO2023077612A1
WO2023077612A1 PCT/CN2021/136990 CN2021136990W WO2023077612A1 WO 2023077612 A1 WO2023077612 A1 WO 2023077612A1 CN 2021136990 W CN2021136990 W CN 2021136990W WO 2023077612 A1 WO2023077612 A1 WO 2023077612A1
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water
tank
heat exchange
storage tank
recovery
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PCT/CN2021/136990
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English (en)
French (fr)
Inventor
王恒
翟文恒
丁伟
张周康
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青岛新奥能源有限公司
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Publication of WO2023077612A1 publication Critical patent/WO2023077612A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • F22D11/02—Arrangements of feed-water pumps
    • F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler

Definitions

  • the utility model relates to the technical field of boiler condensed water treatment equipment, in particular to a recycling system for industrial steam condensed water.
  • the utility model provides an industrial steam condensate recovery and utilization system, and the specific technical scheme is as follows.
  • An industrial steam condensate recovery and utilization system including a hot water recovery tank, a soft water tank, a heat exchange coil, and a water replenishment float valve.
  • the water outlet of the water recovery water tank is arranged on the upper part; the installation height of the water outlet is greater than the installation height of the heat exchange coil; the heat exchange coil is arranged at the bottom of the soft water tank, and the water outlet is connected to the heat exchange coil through a pipeline;
  • the soft water tank is provided with a partition plate, which divides the space in the soft water tank into a first water storage tank and a second water storage tank; Water replenishment float valve; the water outlet pipe is connected to the second water storage tank.
  • the top of the hot water recovery water tank is provided with one or more vent holes, and the boiler blowdown pipe, steam pipe drain pipe and user steam condensate water pipe are respectively connected through the water inlet on the upper part of the hot water recovery water tank.
  • the outer layer of the hot water recovery water tank is wrapped with an insulating layer.
  • the heat exchange coils are spirally arranged at the bottom of the soft water tank, and the heat exchange coils pass through the second water storage tank and the first water storage tank in sequence.
  • the water level of the first water storage tank in the soft water tank is higher than the water level of the second water storage tank, and the water outlet pipe is installed at the lower part of the second water storage tank.
  • the heat exchange coil is a stainless steel coil, and the heat exchange coil passes through the side wall of the second water storage tank.
  • the end of the heat exchange coil passing through the second water storage tank is connected to the filtered water tank.
  • the height of the dividing plate is smaller than the height of the soft water tank.
  • the beneficial effect of the industrial steam condensate recovery and utilization system provided by the utility model is: the soft water tank of the system can be set and divided to maximize the utilization of heat and complete heat exchange; the hot water recovery tank, the soft water tank and the heat exchange coil can realize self-flowing , thus reducing the input cost, reducing the water flow velocity, reducing the heat exchange temperature difference, and improving the utilization rate of heat.
  • the system also has the advantages of easy setup, low operating costs, and no need for caretakers.
  • Fig. 1 is a structural schematic diagram of an industrial steam condensate recycling system
  • Fig. 2 is a system processing flowchart
  • 1-hot water recovery tank 2-soft water tank, 3-heat exchange coil, 4-fill water float valve, 5-boiler sewage pipe, 6-steam pipe drain pipe, 7-user steam condensate pipe, 8th One water storage tank, 9 the second water storage tank, 10-water outlet pipe.
  • An industrial steam condensate recovery and utilization system specifically includes a hot water recovery tank 1, a soft water tank 2, a heat exchange coil 3 and a water replenishment float valve 4.
  • the hot water recovery tank 1 collects hot water condensed by a boiler and deposits it in the tank to soften the water
  • the water tank 2 utilizes the heat exchange coil to realize self-flowing and stable heating, and the water supplement float valve 4 controls the water level in the soft water tank.
  • the hot water recovery water tank 1 is connected to the boiler sewage pipe 5, the steam pipe drain pipe 6 and the user steam condensate pipe 7.
  • the outlet should be arranged below the hot water recovery tank as much as possible, so as to ensure that the hot water will first settle at the bottom of the tank after entering.
  • the setting height of the water outlet is higher than the setting height of the heat exchange coil 3, so as to ensure that the hot water flowing out of the water outlet pipe has a relatively uniform mixing temperature and a relatively stable temperature, and at the same time, there are fewer impurities after precipitation.
  • the heat exchange coil 3 is arranged at the bottom of the soft water tank, and the water outlet is connected to the heat exchange coil 3 through a pipe, and the heat exchange coil is arranged in a spiral shape to ensure sufficient heat exchange.
  • the soft water tank 2 is provided with a partition plate, which divides the inner space of the soft water tank 2 into a first water storage tank 8 and a second water storage tank 9, and the first water storage tank 8 overflows to the second water storage tank 9 to realize heating water. artesian.
  • the water supply port of the soft water tank 2 is set on the side of the first water storage tank, and the water supply port is provided with a water supply float valve 4, and the outlet pipe is connected to the second water storage tank, so that the direction of water supply is opposite to that of hot water, thus ensuring the efficiency of heat exchange. And has a higher heating water temperature.
  • the top of the hot water recovery water tank 1 is provided with one or more exhaust holes, which are used to prevent the high pressure brought by the hot gas.
  • Boiler sewage pipe 5, steam pipe drain pipe 6 and user steam condensate pipe 7 are respectively connected through the water inlet on the upper part of the hot water recovery water tank, so as to realize the self-flow of water inlet.
  • the overall equipment can also fully realize the self-flow through the setting of the height.
  • the self-flow setting is more effective in releasing energy and reducing the maintenance cost of the equipment.
  • the outer layer of the hot water recovery tank can also be wrapped with an insulation layer, so that heat can be better preserved.
  • the heat exchange coil 3 is spirally arranged at the bottom of the soft water tank, and a plurality of branch pipes can also be arranged to expand the heat exchange area.
  • the heat exchange coil passes through the second water storage tank 9 and the first water storage tank 8 in sequence,
  • the demineralized water in the water tank 9 can improve heat exchange efficiency and heating temperature after being heated by the first water storage tank 8 .
  • the water level height of the first water storage tank in the soft water tank is greater than the water level height of the second water storage tank, and the water outlet pipe is installed in the bottom of the second water storage tank 9 .
  • the heat exchange coil 3 is a stainless steel coil, and the heat exchange coil 3 passes through the side wall of the second water storage tank.
  • the end of the heat exchange coil passing through the second water storage tank 9 is connected to the filtered water tank.
  • the setting height of dividing plate is less than the height of soft water water tank, thereby can guarantee the normal artesian flow of soft water in the water tank.
  • the soft water tank of this system can be set and divided to maximize the use of heat and complete heat exchange; the hot water recovery tank, soft water tank and heat exchange coil can realize self-flow, thereby canceling the investment cost, reducing the water flow speed, and narrowing the heat exchange temperature difference. Improved heat utilization.
  • the system also has the advantages of easy setup, low operating costs, and no need for caretakers.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

一种工业蒸汽凝结水回收利用系统，涉及锅炉冷凝水处理设备技术领域。该系统包括热水回收水箱（1）、软水水箱（2）、换热盘管（3）和补水浮球阀（4），热水回收水箱（1）连接锅炉排污水管（5）、蒸汽管道疏水管（6）和用户蒸汽冷凝水管（7），热水回收水箱（1）的出水口设置在上部；出水口的设置高度大于换热盘管（3）的设置高度；换热盘管（3）设置在软水水箱（2）的底部，出水口通过管道连接换热盘管（3）；软水水箱（2）内设置有分隔板，分隔板将软水水箱（2）内空间分割为第一储水箱（8）和第二储水箱（9）；软水水箱（2）的补水口设置在第一储水箱（8）侧，补水口处设置有补水浮球阀（4）；出水管（10）连接第二储水箱（9）。该系统的软水水箱设置分割可以最大化利用热量，完成换热，另外系统可以实现自流换热，降低了流速，换热温差小，热量利用率高。

Description

一种工业蒸汽凝结水回收利用系统 技术领域
本实用新型涉及锅炉冷凝水处理设备技术领域，尤其是一种工业蒸汽凝结水的回收利用系统。
 背景技术
在工业生产、供热等领域普遍应用蒸汽进行生产，蒸汽在生产中锅炉排污、分集水器排污及疏水、生产工艺中将热量释放后产生冷凝水，此部分排污、疏水、冷凝水需要及时排出，排污水排出后因为杂质多、硬度高，工业生产中负荷变化频繁，导致疏水、冷凝水间歇排出，回收运输过程中杂质相对增加，因此直接回收利用的话传统做法需要投入大量资金设备进行除杂质、水质软化后再利用。
现有技术中对工业蒸汽冷凝水的处理通常是将排污、疏水、凝结水回收需要增加几级过滤器，对杂质进行祛除，因为硬度大锅炉用水软化费用高且本来排污水回收利用不高，即使回收软化过程中大量热水还是排放掉，热量回收量少，投入与收益不平衡，节能回收成为负担。由于现有的蒸汽回收利用经济性不好，需要投入的资金高，为此需要对现有的凝结水回收利用系统做进一步的改进，降低投入成本，实现更好的热量回收效果。
 技术解决方案
为了更好的利用工业蒸汽凝结水中的热源，综合处理，降低投入陈本，本实用新型提供了一种工业蒸汽凝结水回收利用系统，具体的技术方案如下。
一种工业蒸汽凝结水回收利用系统，包括热水回收水箱、软水水箱、换热盘管和补水浮球阀，所述热水回收水箱连接锅炉排污水管、蒸汽管道疏水管和用户蒸汽冷凝水管，热水回收水箱的出水口设置在上部；所述出水口的设置高度大于换热盘管的设置高度；所述换热盘管设置在软水水箱的底部，出水口通过管道连接换热盘管；所述软水水箱内设置有分隔板，分隔板将软水水箱内空间分割为第一储水箱和第二储水箱；所述软水水箱的补水口设置在第一储水箱侧，补水口处设置有补水浮球阀；出水管连接第二储水箱。
优选的是，热水回收水箱的顶部设置有1个或多个排气孔，所述锅炉排污水管、蒸汽管道疏水管和用户蒸汽冷凝水管分别通过热水回收水箱上部的入水口接入。
还优选的是，热水回收水箱的外层包裹有保温层。
还优选的是，换热盘管呈螺旋状配置在软水水箱的底部，换热盘管依次穿过第二储水箱和第一储水箱。
还优选的是，软水水箱内第一储水箱的水位高度大于第二储水箱的水位高度，出水管安装在第二储水箱的下部。
进一步优选的是，换热盘管为不锈钢盘管，换热盘管从第二储水箱的侧壁穿出。
进一步优选的是，换热盘管的穿过第二储水箱末端接入过滤水箱。
进一步优选的是，分隔板的设置高度小于软水水箱的高度。
 有益效果
本实用新型提供的一种工业蒸汽凝结水回收利用系统有益效果是：该系统的软水水箱设置分割可以最大化利用热量，完成换热；热水回收水箱、软水水箱和换热盘管内可以实现自流，从而解约了投入成本，降低了水流速度，缩小了换热温差，提高了热量的利用率。该系统还具有设置方便、运营成本低、不需要看护等优点。
 附图说明
图1是工业蒸汽凝结水回收利用系统的结构示意图；
图2是系统处理流程图；
图中：1-热水回收水箱，2-软水水箱，3-换热盘管，4-补水浮球阀，5-锅炉排污水管，6-蒸汽管道疏水管，7-用户蒸汽冷凝水管，8第一储水箱，9第二储水箱，10-出水管。
 本发明的实施方式
结合图1和图2所示，对本实用新型提供的一种工业蒸汽凝结水回收利用系统具体实施方式进行说明。
一种工业蒸汽凝结水回收利用系统具体包括热水回收水箱1、软水水箱2、换热盘管3和补水浮球阀4，热水回收水箱1收集锅炉冷凝热水，并在水箱中沉淀，软水水箱2利用换热盘管实现自流稳定加热，补水浮球阀4控制软水水箱内的水位。热水回收水箱1连接锅炉排污水管5、蒸汽管道疏水管6和用户蒸汽冷凝水管7，热水回收水箱1的出水口设置在上部，锅炉排污水管、蒸汽管道疏水管和用户蒸汽冷凝水管的管道口尽量布置在热水回收水箱的下方，从而保证热水进入后在水箱底部先行沉淀。出水口的设置高度大于换热盘管3的设置高度，从而可以保证从出水管流出的热水经过了较为均匀的混合温度比较稳定，同时经过沉淀后杂质较少。换热盘管3设置在软水水箱的底部，出水口通过管道连接换热盘管3，换热盘管呈螺旋状布置保证了充分的换热。软水水箱2内设置有分隔板，分隔板将软水水箱2内空间分割为第一储水箱8和第二储水箱9，第一储水箱8向第二储水箱9溢水，实现加热水的自流。软水水箱2的补水口设置在第一储水箱侧，补水口处设置有补水浮球阀4，出水管连接第二储水箱，从而使补水方向和热水流向相反，从而保证了换热的效率，并具有更高的加热水温。
热水回收水箱1的顶部设置有1个或多个排气孔，用于防止热气带来的高压。锅炉排污水管5、蒸汽管道疏水管6和用户蒸汽冷凝水管7分别通过热水回收水箱上部的入水口接入，可以实现进水的自流。设备整体通过高度的设置也可以完全实现自流，自流设置更有效的解约能源，降低了设备的维护成本。热水回收水箱的外层还可以包裹有保温层，从而可以更好的保存热量。
换热盘管3呈螺旋状配置在软水水箱的底部，还可以设置多个支管，扩大换热面积，换热盘管依次穿过第二储水箱9和第一储水箱8，在第二储水箱9内的水软水经过第一储水箱8的加热后可以提升换热效率和加热温度。软水水箱内第一储水箱的水位高度大于第二储水箱的水位高度，出水管安装在第二储水箱9的下部。换热盘管3为不锈钢盘管，换热盘管3从第二储水箱的侧壁穿出。换热盘管的穿过第二储水箱9末端接入过滤水箱。分隔板的设置高度小于软水水箱的高度，从而可以保证软水在水箱内的正常自流。
该系统的软水水箱设置分割可以最大化利用热量，完成换热；热水回收水箱、软水水箱和换热盘管内可以实现自流，从而解约了投入成本，降低了水流速度，缩小了换热温差，提高了热量的利用率。该系统还具有设置方便、运营成本低、不需要看护等优点。
当然，上述说明并非是对本实用新型的限制，本实用新型也并不仅限于上述举例，本技术领域的技术人员在本实用新型的实质范围内所做出的变化、改型、添加或替换，也应属于本实用新型的保护范围。

Claims (8)

  1. 一种工业蒸汽凝结水回收利用系统，其特征在于，包括热水回收水箱、软水水箱、换热盘管和补水浮球阀，所述热水回收水箱连接锅炉排污水管、蒸汽管道疏水管和用户蒸汽冷凝水管，热水回收水箱的出水口设置在上部；所述出水口的设置高度大于换热盘管的设置高度；所述换热盘管设置在软水水箱的底部，出水口通过管道连接换热盘管；所述软水水箱内设置有分隔板，分隔板将软水水箱内空间分割为第一储水箱和第二储水箱；所述软水水箱的补水口设置在第一储水箱侧，补水口处设置有补水浮球阀；出水管连接第二储水箱。
  2. 根据权利要求1所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述热水回收水箱的顶部设置有1个或多个排气孔，所述锅炉排污水管、蒸汽管道疏水管和用户蒸汽冷凝水管分别通过热水回收水箱上部的入水口接入。
  3. 根据权利要求2所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述热水回收水箱的外层包裹有保温层。
  4. 根据权利要求1所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述换热盘管呈螺旋状配置在软水水箱的底部，换热盘管依次穿过第二储水箱和第一储水箱。
  5. 根据权利要求4所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述软水水箱内第一储水箱的水位高度大于第二储水箱的水位高度，出水管安装在第二储水箱的下部。
  6. 根据权利要求4所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述换热盘管为不锈钢盘管，换热盘管从第二储水箱的侧壁穿出。
  7. 根据权利要求6所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述换热盘管的穿过第二储水箱末端接入过滤水箱。
  8. 根据权利要求1所述的一种工业蒸汽凝结水回收利用系统，其他特征在于，所述分隔板的设置高度小于软水水箱的高度。
PCT/CN2021/136990 2021-11-04 2021-12-10 一种工业蒸汽凝结水回收利用系统 WO2023077612A1 (zh)

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