CN102563609B - Condensate-recycling system - Google Patents
Condensate-recycling system Download PDFInfo
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- CN102563609B CN102563609B CN201010619502.4A CN201010619502A CN102563609B CN 102563609 B CN102563609 B CN 102563609B CN 201010619502 A CN201010619502 A CN 201010619502A CN 102563609 B CN102563609 B CN 102563609B
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- 238000004064 recycling Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000011084 recovery Methods 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 1
- 239000008234 soft water Substances 0.000 abstract description 46
- 239000002699 waste material Substances 0.000 abstract description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 9
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明涉及一种凝结水回收利用系统，特别涉及一种用于烟厂凝结水的回收利用系统。The invention relates to a condensed water recycling system, in particular to a recycling system for condensed water in a cigarette factory.
背景技术 Background technique
卷烟厂在卷烟生产过程中，为了确保制丝线工艺设备和暖通设备的正常运转，需要用大量的蒸汽，蒸汽作为一种热能载体在各种用汽设备中放出汽化潜热后，会变为近乎同温同压下的饱和凝结水，由于蒸汽的使用压力大于大气压力，所以凝结水所具有的热量可达蒸汽全热量的20％-30％，且压力、温度越高，凝结水具有的热量就越多，占蒸汽总热量的比例也就越大，由此可以看出，100％的回收凝结水的热量并加以有效利用具有很大的节能潜力。In the cigarette production process, in order to ensure the normal operation of the silk-making line process equipment and HVAC equipment, the cigarette factory needs to use a large amount of steam. As a heat carrier, the steam will become almost For saturated condensed water under the same temperature and pressure, since the operating pressure of steam is greater than atmospheric pressure, the heat of condensed water can reach 20%-30% of the total heat of steam, and the higher the pressure and temperature, the higher the heat of condensed water The more it is, the greater the proportion of the total steam heat is, so it can be seen that 100% recovery of the heat of condensed water and effective use has great potential for energy saving.
目前卷烟厂生产线换热设备产生的凝结水一般都会通过地埋管道回到凝结水回收器，但由于各生产工艺的用汽压力不同(最大用汽压力在制丝线烘丝机处不低于0.8MPa，而凝结水回收器的工作压力只有0.125MPa)，因此凝结水很容易在凝结水管道中产生的闪蒸蒸汽，部分疏水阀的泄漏蒸汽也会进入到凝结水管道中，这样就会使大量的闪蒸蒸汽和泄漏蒸汽在凝结水回收器重积聚，使得凝结水回收器中的背压升高，进而造成用气设备疏水不畅，为了保证用气设备疏水畅通，通常将密闭凝结水回收器改为开式系统，在凝结水回收器上增加排空管排放掉闪蒸蒸汽，这样就是的大量的热量被白白浪费掉，造成能源浪费。At present, the condensed water produced by the heat exchange equipment of the cigarette factory production line is generally returned to the condensed water recovery device through the buried pipeline, but because the steam pressure of each production process is different (the maximum steam pressure is not lower than 0.8 at the silk drying machine of the silk production line MPa, and the working pressure of the condensate recovery device is only 0.125MPa), so the condensed water is easy to generate flash steam in the condensed water pipeline, and the leaked steam of some steam traps will also enter the condensed water pipeline, which will make the A large amount of flash steam and leaked steam accumulate in the condensate recovery device, which increases the back pressure in the condensate recovery device, which in turn causes poor drainage of gas-consuming equipment. In order to ensure smooth drainage of gas-consuming equipment, the sealed condensate is usually recovered The device is changed to an open system, and an emptying pipe is added to the condensate recovery device to discharge the flash steam, so that a large amount of heat is wasted in vain, resulting in energy waste.
发明内容 Contents of the invention
针对上述现有技术的不足，本发明要解决的技术问题是提供一种能使凝结水闪蒸蒸汽的热量得到充分利用的凝结水回收利用系统。In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a condensate recovery and utilization system that can fully utilize the heat of condensate flash steam.
为解决上述技术问题，本发明采用如下技术方案：In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:
一种凝结水回收利用系统，包括锅炉、低位软水箱、高位软水箱、凝结水回收器，所述低位软水箱通过高位水箱给水泵与所述高位软水箱连接，所述高位软水箱通过锅炉给水泵与所述锅炉连接，所述凝结水回收器通过疏水器与用汽设备连接，其还包括一汽水加热器，所述高位软水箱通过一循环水泵与所述汽水加热器的进水口连接，所述汽水加热器的出水口与所述高位软水箱连接，所述凝结水回收器的排气口与所述汽水加热器的进气口连接，所述汽水加热器的冷凝水排水口与所述凝结水回收器的进水口连接，所述凝结水回收器的出水口通过凝结水回收泵与所述高位软水箱连接。A condensate recovery and utilization system, comprising a boiler, a low-level soft water tank, a high-level soft water tank, and a condensate recovery device, the low-level soft water tank is connected to the high-level soft water tank through a high-level water tank feed pump, and the high-level soft water tank is fed by a boiler The water pump is connected to the boiler, the condensed water recoverer is connected to the steam-consuming equipment through a steam trap, and it also includes a steam-water heater, and the high-level soft water tank is connected to the water inlet of the steam-water heater through a circulating water pump, The water outlet of the soda heater is connected to the high-level soft water tank, the exhaust port of the condensed water recovery device is connected to the air inlet of the soda water heater, and the condensed water outlet of the soda water heater is connected to the The water inlet of the condensed water recovery device is connected, and the water outlet of the condensed water recovery device is connected with the high-level soft water tank through a condensed water recovery pump.
优选的，所述高位软水箱与所述锅炉的连接管路上设有水温检测器。Preferably, a water temperature detector is provided on the connecting pipeline between the high-level soft water tank and the boiler.
优选的，所述凝结水回收器与所述高位软水箱连接的管道上设有除铁器、水质检测器和流量计。Preferably, the pipeline connecting the condensed water recovery device and the high-level soft water tank is provided with an iron remover, a water quality detector and a flow meter.
优选的，所述凝结水回收器与所述高位软水箱连接的管道上设有排水阀。Preferably, a drain valve is provided on the pipeline connecting the condensed water recovery device and the high-level soft water tank.
优选的，所述低位软水箱与所述高位软水箱连接的管道上设有常温除氧器。Preferably, the pipeline connecting the low-level soft water tank and the high-level soft water tank is provided with a normal temperature deaerator.
上述技术方案具有如下有益效果：该凝结水回收利用系统设置了一汽水加热器，凝结水回收器内的闪蒸蒸汽和疏水阀的泄漏蒸汽通过排气口进入到汽水加热器中，同时高位软水箱内的软水也经过该汽水加热器，这样软水和蒸汽在汽水加热器内就可进行热交换，使软水的温度升高，同时使蒸汽冷凝并回流到凝结水回收器中，这样就可使蒸汽的热量得到充分的利用，可有效避免能源的浪费，同时蒸汽冷却后产生的冷凝水可流至高位软水箱内被锅炉重新利用，使水资源也得到有效利用，减少水资源的浪费，满足节能环保的要求。The above technical solution has the following beneficial effects: the condensed water recycling system is provided with a steam water heater, and the flash steam in the condensed water recovery device and the leakage steam of the steam trap enter the steam water heater through the exhaust port, and at the same time, the high-level soft water The soft water in the tank also passes through the steam-water heater, so that the soft water and steam can exchange heat in the steam-water heater, so that the temperature of the soft water rises, and at the same time, the steam is condensed and returned to the condensed water recovery device, so that it can be used The heat of steam is fully utilized, which can effectively avoid energy waste. At the same time, the condensed water generated after steam cooling can flow to the high-level soft water tank and be reused by the boiler, so that water resources can also be effectively used, reducing the waste of water resources and meeting Energy saving and environmental protection requirements.
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below. The specific embodiment of the present invention is given in detail by the following examples and accompanying drawings.
附图说明 Description of drawings
图1为本发明实施例的结构示意图。Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
具体实施方式 Detailed ways
下面结合附图对本发明的优选的实施例进行详细介绍。Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
如图1所示，该凝结水回收利用系统包括锅炉8、低位软水箱1、高位软水箱5、凝结水回收器11和汽水加热器12，低位软水箱1通过高位水箱给水泵2与高位软水箱5连接，低位软水箱1与高位软水箱2连接的管道上设有常温除氧器3。高位软水箱5通过锅炉给水泵7与锅炉连接，高位软水箱与所述锅炉的连接管路上设有水温检测器6。凝结水回收器11通过疏水器10与用汽设备9连接。As shown in Figure 1, the condensate recycling system includes a boiler 8, a low-level soft water tank 1, a high-level soft water tank 5, a condensate recovery device 11, and a steam-water heater 12. The tank 5 is connected, and the pipeline connecting the low-level soft water tank 1 and the high-level soft water tank 2 is provided with a normal temperature deaerator 3 . The high-level soft water tank 5 is connected to the boiler through a boiler feed water pump 7, and a water temperature detector 6 is provided on the connecting pipeline between the high-level soft water tank and the boiler. The condensed water recoverer 11 is connected with the steam-using equipment 9 through the steam trap 10 .
高位软水箱5通过一循环水泵4与汽水加热器12的进水口连接，汽水加热器12的出水口与高位软水箱5连接，凝结水回收器11的排气口与汽水加热器12的进气口连接，汽水加热器12的冷凝水排水口与凝结水回收器11的进水口连接，凝结水回收器11的出水口通过凝结水回收泵13与高位软水箱连接。凝结水回收器与高位软水箱连接的管道上还设有除铁器14、水质检测器16、流量计15和排水阀17。The high-level soft water tank 5 is connected to the water inlet of the soda water heater 12 through a circulating water pump 4, the water outlet of the soda water heater 12 is connected to the high level soft water tank 5, and the exhaust port of the condensate recovery device 11 is connected to the air intake of the soda water heater 12. The condensed water outlet of the steam water heater 12 is connected with the water inlet of the condensed water recovery device 11, and the water outlet of the condensed water recovery device 11 is connected with the high soft water tank through the condensed water recovery pump 13. The pipeline connecting the condensate recovery device and the high-level soft water tank is also provided with an iron remover 14 , a water quality detector 16 , a flow meter 15 and a drain valve 17 .
该凝结水回收利用系统在使用时，自来水经软化设备处理后进入低位软水箱1，在由高位水箱给水泵2将低位软水箱中的水抽至高位软水箱5，并由常温除氧器3进行除氧处理。高位软水箱5内的水通过锅炉给水泵7送至锅炉并由水温检测器6对水温进行检测，以防止水温过低影响锅炉的使用。When the condensed water recycling system is in use, the tap water enters the low-level soft water tank 1 after being treated by softening equipment, and the water in the low-level soft water tank is pumped to the high-level soft water tank 5 by the high-level water tank feed pump 2, and the water is pumped by the normal temperature deaerator 3 Perform deoxygenation treatment. The water in the high-level soft water tank 5 is sent to the boiler through the boiler feed water pump 7, and the water temperature is detected by the water temperature detector 6, so as to prevent the water temperature from being too low to affect the use of the boiler.
各用气设备9产生的凝结水经疏水器10进入凝结水回收器11内，由于闪蒸蒸汽和泄露蒸汽的原因，凝结水回收器11内会积聚大量的蒸汽，蒸汽经凝结水回收器11的排气口进入汽水加热器12内，于此同时高温软水箱5内的软水经循环水泵4也进入到汽水加热器12内，蒸汽与软水在汽水加热器12内进行热交换，使软水的水温增加并返流会高位软水箱内，同时蒸汽凝结形成冷凝水并返流回凝结水回收器内。蒸汽通过该汽水加热器12进行热交换用来加热软水，使蒸汽的热量得到充分的利用，可有效避免能源的浪费。The condensed water generated by each gas-consuming equipment 9 enters the condensed water recovery device 11 through the steam trap 10. Due to flash steam and leaked steam, a large amount of steam will accumulate in the condensed water recovery device 11, and the steam will pass through the condensed water recovery device 11. The exhaust port of the exhaust port enters in the soda water heater 12, at the same time the soft water in the high temperature soft water tank 5 also enters in the soda water heater 12 through the circulating water pump 4, and the steam and the soft water carry out heat exchange in the soda water heater 12, so that the soft water The water temperature increases and flows back into the high-level soft water tank. At the same time, the steam condenses to form condensed water and flows back into the condensed water recovery device. The steam is exchanged through the steam-water heater 12 to heat soft water, so that the heat of the steam can be fully utilized, and energy waste can be effectively avoided.
凝结水回收器11内凝结水可通过凝结水回收泵13抽至高位软水箱5内，为了使凝结水的水质满足锅炉软水的要求，可通过除铁器14对凝结水进行除铁处理，并通过水质检测器16对凝结水进行检测，通过流量计15检测凝结水的流量，当凝结水较多而锅炉不能完全使用时，可通过排水阀17向外排出。该系统可使蒸汽冷却后产生的冷凝水流至高位软水箱内被锅炉重新利用，使水资源也得到有效利用，从而有效减少水资源的浪费，满足节能环保的要求。The condensed water in the condensed water recovery device 11 can be pumped into the high-level soft water tank 5 through the condensed water recovery pump 13. In order to make the water quality of the condensed water meet the requirements of boiler soft water, the condensed water can be treated with iron removal by the iron remover 14 and passed The water quality detector 16 detects the condensed water, and the flow of the condensed water is detected by the flow meter 15. When the condensed water is too much and the boiler cannot be fully used, it can be discharged through the drain valve 17. The system can make the condensed water generated after steam cooling flow to the high-level soft water tank to be reused by the boiler, so that water resources can be effectively used, thereby effectively reducing the waste of water resources and meeting the requirements of energy conservation and environmental protection.
以上对本发明实施例所提供的凝结水回收利用系统进行了详细介绍，对于本领域的一般技术人员，依据本发明实施例的思想，在具体实施方式及应用范围上均会有所改变，因此本说明书内容仅用来于对本发明实施例进行说明，不应理解为对本发明的限制，凡依本发明设计思想所做的任何改变都在本发明的保护范围之内。The condensed water recovery and utilization system provided by the embodiment of the present invention has been introduced in detail above. For those of ordinary skill in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application range. Therefore, this The contents of the description are only used to illustrate the embodiments of the present invention, and should not be construed as limiting the present invention. Any changes made according to the design idea of the present invention are within the scope of protection of the present invention.
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| CN103017127A (en) * | 2012-12-14 | 2013-04-03 | 江苏长三角精细化工有限公司 | Utilization method and device for waste heat of waste steam |
| CN104358060A (en) * | 2014-10-24 | 2015-02-18 | 浙江美欣达印染集团股份有限公司 | Printing and dyeing workshop condensate recycling device |
| CN104501130B (en) * | 2014-11-25 | 2016-06-01 | 河南中烟工业有限责任公司 | Tobacco workshop steam utilization condensate recovery system |
| CN106275911A (en) * | 2016-08-24 | 2017-01-04 | 武汉天龙饲料有限公司 | Storage facilities deposited by oils and fats |
| CN108167801A (en) * | 2018-02-01 | 2018-06-15 | 苏州迪森能源技术有限公司 | Boiler carbonated drink processing system |
| CN109813136B (en) * | 2019-02-27 | 2025-04-18 | 临沂市奥博特热力有限公司 | A high-efficiency temperature-controlled steam recovery economizer |
| CN215909025U (en) * | 2021-11-04 | 2022-02-25 | 青岛新奥能源有限公司 | Industrial steam condensate water recycle system |
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