KR100947048B1 - Recycling system of high temperature condensed water - Google Patents

Recycling system of high temperature condensed water Download PDF

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KR100947048B1
KR100947048B1 KR1020090094230A KR20090094230A KR100947048B1 KR 100947048 B1 KR100947048 B1 KR 100947048B1 KR 1020090094230 A KR1020090094230 A KR 1020090094230A KR 20090094230 A KR20090094230 A KR 20090094230A KR 100947048 B1 KR100947048 B1 KR 100947048B1
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steam
water
water supply
boiler
high temperature
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KR1020090094230A
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Korean (ko)
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노승록
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(주)우신비엔피
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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
    • 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
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/28—Feed-water heaters, i.e. economisers or like preheaters for direct heat transfer, e.g. by mixing water and steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

PURPOSE: A recovering system for high-temperature condensation water is provided to prevent the inside temperature of a boiler from being increased by preventing re-evaporated steam from being dispersed around the boiler. CONSTITUTION: A recovering system for high-temperature condensation water is composed of a steam boiler(100), a steam distributor(110), steam traps(122,122'), a high-pressure storage tank(130), a high-temperature feed water pump(140), a feed water tank(150), a low-temperature feed water pump(160), and a steam exhaust pipe(133). The steam exhaust pipe is connected to a gap between the high-pressure storage tank and the feed water tank. And the steam exhaust pipe preheats water in the feed water tank by dispersing re-evaporated steam to inside the feed water tank.

Description

고온 응축수의 회수시스템{Recycling System Of High Temperature Condensed Water}Recycling System Of High Temperature Condensed Water

본 발명은 보일러 시스템에 관한 것으로서, 보다 상세하게는 고온의 증기열을 이용하는 열사용시설에서 배출되는 응축수를 재증발증기를 억제하면서 회수함으로써 에너지 효율을 개선시키기 위한 응축수 회수 시스템에 관한 것이다. The present invention relates to a boiler system, and more particularly, to a condensate recovery system for improving energy efficiency by recovering condensate discharged from a heat use facility using high-temperature steam heat while suppressing flash steam.

종래에 사용되어 온 일반적인 증기보일러의 응축수 회수시스템이 도 1 에 도시된다. 도시된 시스템은, 증기보일러(1); 증기보일러(1)에서 생산된 증기를 열사용시설(20,20')에 분배 공급하는 증기분배기(10); 열사용시설(20,20')에 적절하게 증기를 공급하는 온도 조절밸브(21,21'); 각자의 목적에 따라 열을 소비하는 열사용시설(20,20'); 상기 열사용시설(20,20')에서 발생한 응축수를 증기와 분리 배출하는 증기트랩(22,22'); 응축수 및 보급수를 저장하는 급수탱크(50); 상기 급수탱크(50)의 물을 증기보일러(1)에 공급하는 급수펌프(60)로 구성되어 있다. A conventional steam boiler condensate recovery system has been shown in FIG. 1. The illustrated system comprises a steam boiler 1; A steam distributor 10 for distributing and supplying steam produced by the steam boiler 1 to the heat use facilities 20 and 20 '; Temperature control valves 21 and 21 'for appropriately supplying steam to the heat use facilities 20 and 20'; Thermal facilities (20, 20 ') that consume heat for their respective purposes; Steam traps 22 and 22 'for separating and discharging condensate generated from the heat use facilities 20 and 20' with steam; A water supply tank 50 for storing condensate and make-up water; It consists of a water supply pump 60 which supplies the water of the said water supply tank 50 to the steam boiler 1. As shown in FIG.

상기 보일러 급수탱크(50)에는 보일러 급수의 부족분을 보충하기 위해 보충수 공급관(51)이 연결되어 있고, 상기 열사용시설(20,20')에서 발생한 고온의 응축 수가 대기압 상태의 급수탱크(50)로 회수된 후 증발되는 재증발증기를 배출하는 벤트관(52)이 설치되어 있다. The boiler feed tank 50 is connected to the supplemental water supply pipe 51 to compensate for the shortage of boiler feed water, and the high temperature condensed water generated in the heat using facilities 20 and 20 'is supplied to the atmospheric pressure tank 50. Vent pipe 52 for discharging the re-evaporation steam is recovered after evaporation) is installed.

이와 같이 종래에 사용되어 온 증기보일러 시스템의 응축수 회수 시스템은 열사용시설(20,20')에서 열을 사용한 후 응축된 응축수가 증기트랩(22,22')으로 배출되어 응축수 회수관(24)을 따라 대기압의 급수탱크(50)로 모아져 급수펌프(60)에 의해 증기보일러(1)에 공급된다. 도면부호 3은 리미트스위치로서 증기보일러(1)의 물부족시 급수펌프(60)를 가동시키게 하며, 도면부호 61은 제어반을 나타낸다.As such, the condensate recovery system of the steam boiler system, which has been conventionally used, is discharged to the steam trap (22, 22 ') after condensed condensate after using the heat in the heat use facility (20, 20'), the condensate recovery pipe (24) The water is collected in the water supply tank 50 at atmospheric pressure and supplied to the steam boiler 1 by the water supply pump 60. Reference numeral 3 denotes a limit switch to operate the feed water pump 60 when the steam boiler 1 runs out of water, and reference numeral 61 denotes a control panel.

이때 상기 증기 트랩(22,22')에서 배출되는 응축수는 열사용시설에 공급되는 공급증기의 압력에 상응하는 포화온도로 배출되어 고온의 상태이며 급수탱크(50)는 대기압 상태이므로 급수탱크(50)에서 재증발증기가 발생되며, 이러한 재증발증기는 상기 벤트관(52)으로 배출된다. 즉, 급수탱크(50)에서 대기로 방출되는 재증발증기는 현열뿐만 아니라 잠열까지 보유하고 있어 그에 따른 열손실이 막대하고 나아가 재증발증기에 포함된 응축수까지도 함께 유실되는 문제가 있다.  At this time, the condensed water discharged from the steam traps 22 and 22 'is discharged at a saturation temperature corresponding to the pressure of the supply steam supplied to the heat use facility, so that the condensed water is hot and the water supply tank 50 is at atmospheric pressure. E) flash steam is generated, and the flash steam is discharged into the vent pipe (52). That is, the flash steam discharged from the water supply tank 50 to the atmosphere holds not only the sensible heat but also the latent heat, so that the heat loss is enormous and condensed water contained in the flash steam is also lost.

이러한 문제를 극복하고자 국내 특허등록 제10-0536337호는 각종 증기 보일러의 급수시스템에서 대기로 배출되는 재증발증기를 회수하여 보급수 또는 난방수, 급탕수와 같이 승온을 필요로 하는 저온의 유체를 가열하는데 사용하고 나아가 회수된 응축수를 증기 보일러 급수로 재공급함으로써, 보급수 사용량을 절감할 수 있는 재증발증기 회수장치를 구비한 급수장치를 제시하고 있다. In order to overcome this problem, Korean Patent Registration No. 10-0536337 recovers the flash steam discharged from the water supply system of various steam boilers to the atmosphere to recover low-temperature fluids that require elevated temperatures such as replenishment water, heating water, or hot water supply. A water supply apparatus having a re-evaporation steam recovery apparatus that can be used for heating and further re-consumes recovered condensate water to a steam boiler feedwater is provided.

그러나 위 등록특허를 비롯한 종래의 시스템은 열사용시설에서 배출되는 고온의 응축수로부터 열교환 방식을 이용하여 열을 회수하는 방식을 취하고 있다. 그 러나 열교환 과정에서 상당한 기계적 열손실이 있게 되며, 열교환장치를 구성함에 따른 장치의 비용이 상승되는 문제가 있게 된다. However, the conventional system including the above patent is taking a method of recovering heat by using a heat exchange method from the hot condensate discharged from the heat use facility. However, there is a significant mechanical heat loss during the heat exchange process, and there is a problem that the cost of the device according to the configuration of the heat exchanger is increased.

위와 같은 문제에 대한 본 발명의 목적은 열사용시설에서 발생한 고온의 응축수를 재증발증기의 발생을 최대한 억제하면서 회수하여 이를 증기보일러에 직접 공급함으로써 에너지 손실을 방지하는데 있다. 보다 구체적으로는 열교환장치를 사용하지 않음으로써 구성을 단순하게 하고 열교환 과정에서의 열손실을 최소화하는 것에 그 구체적인 목적이 있다. An object of the present invention for the above problems is to recover the high-temperature condensate generated in the heat use facility while restraining the generation of re-evaporation steam as possible to supply directly to the steam boiler to prevent energy loss. More specifically, the purpose is to simplify the configuration and minimize the heat loss during the heat exchange process by not using a heat exchanger.

위와 같은 목적은, 연료를 연소함으로써 고온의 증기를 발생시키는 증기보일러; 상기 증기보일러에서 발생된 증기를 각 열사용시설에 분배하는 증기분배기; 상기 열사용시설에서 일부의 열이 사용된 후 배출되는 액체와 증기의 혼합물로부터 증기를 분리 배출하는 증기트랩; 상기 증기트랩에서 배출되는 고온의 응축수를 고압의 환경에서 집적시킴으로써 증기의 발생을 억제하기 위한 고압저장탱크; 상기 고압저장탱크에 집적된 응축수를 상기 증기보일러로 공급하는 고온 급수펌프; 상기 증기보일러 내부에 물이 부족할 때 상기 증기보일러에 급수를 하기 위한 저온 급수펌프 및 상기 급수를 저장하는 대기압 상태의 급수탱크를 포함하는 것을 특징으로 하는 고온 응축수의 회수시스템에 의해 달성된다.The above object is a steam boiler for generating hot steam by burning fuel; A steam distributor for distributing steam generated in the steam boiler to each heat use facility; A steam trap separating and discharging steam from a mixture of liquid and steam discharged after a part of the heat is used in the heat use facility; A high pressure storage tank for suppressing generation of steam by integrating high temperature condensate discharged from the steam trap in a high pressure environment; A high temperature water supply pump for supplying the condensed water integrated in the high pressure storage tank to the steam boiler; It is achieved by a high temperature condensate water recovery system comprising a low temperature water supply pump for supplying water to the steam boiler when the water in the steam boiler is insufficient, and a water supply tank for storing the water supply.

본 발명의 특징에 따르면, 상기 고압저장탱크와 상기 급수탱크 사이에 오버플로우(over flow)관이 열결됨으로써 상기 고압저장탱크의 수위가 비정상적으로 높아질 경우 고온의 응축수를 상기 급수탱크로 배출하게 되며; 상기 오버플로우관에는 증기트랩이 설치되어 증기가 상기 급수탱크로 유출되지 않도록 할 수 있다. According to a feature of the present invention, when an overflow pipe is thermally connected between the high pressure storage tank and the water supply tank, when the water level of the high pressure storage tank becomes abnormally high, high-temperature condensate is discharged to the water supply tank; The overflow pipe may be provided with a steam trap to prevent steam from leaking into the water supply tank.

본 발명의 다른 특징에 따르면, 상기 고압저장탱크와 상기 급수탱크 사이에 증기 배출관이 연결됨으로써 상기 고압저장탱크에서 발생하는 재증발증기를 상기 급수탱크 내부에 분사시킴으로써 상기 급수탱크 내부의 물을 예열시키도록 할 수 있다. According to another feature of the present invention, the steam discharge pipe is connected between the high pressure storage tank and the water supply tank to preheat the water in the water supply tank by spraying the flash steam generated in the high pressure storage tank into the water supply tank. You can do that.

본 발명의 또 다른 특징에 따르면, 상기 증기보일러에 제1,제2 레벨스위치를 설치하여 고압저장탱크에 집합된 고온 응축수가 상기 증기보일러에 우선 공급되도록 하여 회수 효율을 극대화 하며, 고압저장탱크의 고온응축수가 상기 증기보일러에 공급된 후에도 상기 증기보일러의 급수가 부족할 경우에 저온의 대기압 급수탱크 물이 증기보일러에 공급되도록 하여 상기 증기보일러의 수위가 안정적으로 운전되도록 할 수 있다.According to another feature of the present invention, by installing the first and second level switch in the steam boiler to ensure that the high temperature condensed water collected in the high pressure storage tank is first supplied to the steam boiler to maximize the recovery efficiency, Even after the high temperature condensed water is supplied to the steam boiler, when the water supply of the steam boiler is insufficient, the low temperature atmospheric water supply tank water is supplied to the steam boiler so that the water level of the steam boiler can be stably operated.

위와 같은 구성에 의하면 첫째, 본 발명은 열 사용설비에서 발생한 고온의 응축수가 밀폐 고압급수탱크로 집합하여 보일러로 공급되므로 고온 응축수가 대기압 상태로 노출되어 고온 응축수에서 재증발증기가 발생하여 대기로 방출되는 것을 방지하여 재증발증기에 의한 열에너지 손실을 방지하여 증기의 생산 단가를 낮추어 산업체의 생산 원가 절감에 기여하며,According to the configuration as described above, firstly, the present invention collects condensate of high temperature generated from a heat using facility into a sealed high pressure water supply tank and is supplied to the boiler, so that the high temperature condensate is exposed to atmospheric pressure and flash steam is generated from the hot condensate to be discharged to the atmosphere. Prevents the loss of thermal energy by flash steam, thereby lowering the production cost of steam, contributing to the reduction of production cost of the industry,

둘째, 응축수에서 발생하는 재증발증기의 발생을 방지하므로 재증발증기가 보일러 실내나 보일러실 주변에 비산되어 보일러 실내의 온도를 높이는 것을 방지하고, 보일러 실내의 시야를 확보하여 근무환경을 개선하는 효과가 있다.  Secondly, it prevents the occurrence of flash steam from condensate, preventing the flash steam from scattering around the boiler room or the boiler room, thus raising the temperature of the boiler room, and improving the working environment by securing the view of the boiler room. There is.

셋째, 고온의 응축수에는 상온의 물에 용해되어 있는 용존산소나 유해가스가 존재하지 않아 보일러 급수에 투입하는 탈산소제 양을 줄일 수 있다.  Third, there is no dissolved oxygen or noxious gas dissolved in the water at room temperature in the high-temperature condensate can reduce the amount of deoxidant injected into the boiler feed water.

넷째, 고온의 응축수는 깨끗한 증류수로서 보일러의 내부 스케일을 방지하기 위한 청관제를 주입할 필요가 없으므로 보충수에만 청관제를 투입하여도 보일러 수질 관리에 문제가 없으므로 청관제 소모량을 줄일 수 있다.   Fourth, since the high temperature condensate is clean distilled water, it is not necessary to inject a cleansing agent to prevent the internal scale of the boiler, so even if the cleansing agent is added only to the supplemental water, there is no problem in boiler water quality management, so the consumption of the cleansing agent can be reduced.

이와 같이 본 발명은 산업체 및 업무용 빌딩 등에서 사용하는 증기보일러 시스템에서 고온의 응축수를 회수할 때 발생하여 대기로 방출되는 재증발증기의 발생을 억제하여 에너지 효율을 개선할 수 있다. As described above, the present invention can improve energy efficiency by suppressing the generation of flash steam generated when hot condensate is recovered in the steam boiler system used in industrial and commercial buildings and released into the atmosphere.

이하, 명세서에 첨부된 도면을 참조하여 본 발명의 구체적인 내용을 더욱 상세하게 설명한다. 도 2는 본 발명의 실시예에 의한 고온 응축수의 회수시스템의 계통도이다. Hereinafter, with reference to the accompanying drawings in the detailed description of the present invention will be described in more detail. 2 is a system diagram of a high temperature condensate recovery system according to an embodiment of the present invention.

증기보일러(100)는 연료를 연소시켜 고온의 증기를 발생시키는 수단이며, 증기분배기(110)는 증기보일러(100)에서 공급받은 고온의 증기를 증기공급관(111)과 온도조절밸브(121, 121')를 통하여 열사용시설(120,120')에서 필요한 적절한 양의 고온증기를 열사용시설(120, 120')에 공급한다. 열사용시설(120, 120')은 실로 다양하며 섬유산업, 건물 등 각종 산업시설에 구비된다. Steam boiler 100 is a means for generating high-temperature steam by burning the fuel, the steam distributor 110 is a steam supply pipe 111 and the temperature control valves 121, 121 to supply the high temperature steam supplied from the steam boiler 100 ') To supply the appropriate amount of hot steam required by the thermal facility (120,120') to the thermal facility (120, 120 '). The thermal facilities 120, 120 'are various and are provided in various industrial facilities such as textile industry and buildings.

열사용시설(120, 120')에 공급된 고온증기는 증발잠열을 열사용시설(120, 120')에 공급한 후 고온의 포화수 상태가 되어 증기트랩(122, 122')으로 배출된다. 액체와 증기의 혼합물중 액체는 증기트랩(122,122')에서 증기와 분리되어 응축수 회수관(124)을 통하여 밀폐된 고압저장탱크(130)에 모이게 된다. The high temperature steam supplied to the heat use facilities 120 and 120 'is supplied to the heat use facilities 120 and 120' and then discharged to the steam traps 122 and 122 'in a state of high temperature saturated water. The liquid in the mixture of the liquid and steam is separated from the steam in the steam trap (122, 122 ') is collected in the high pressure storage tank 130 sealed through the condensate recovery pipe (124).

열사용시설(120,120')이 복수개일 경우에는 응축수 회수관(124)에 체크밸브(123, 123')를 설치하여 가동 중인 열사용시설에서 배출된 고온 응축수가 가동 중단중인 열사용시설로 역류하는 것을 방지한다. When there are a plurality of heat use facilities 120 and 120 ', the check valves 123 and 123' are installed in the condensate return pipe 124 so that the high-temperature condensate discharged from the heat use facility is returned to the heat use facility that is in operation. To prevent them.

본 발명의 가장 큰 특징은 고압저장탱크(130)가 구비되는 것에 있다. 고압저장탱크(130)는 고압의 환경을 조성하고 있으며 공급되는 응축수의 증발을 방지 내지 억제하며 포화응축수를 모은다. The biggest feature of the present invention is that the high pressure storage tank 130 is provided. The high pressure storage tank 130 creates a high pressure environment and prevents or suppresses evaporation of condensed water to be supplied and collects saturated condensed water.

고압저장탱크(130)와 더불어 고온의 응축수를 이송할 수 있는 고온 급수펌프(140)가 설치된다. 고압저장탱크(130)는 탱크의 압력을 조절할 수 있는 압력조절밸브(131)와 안전밸브(134), 압력계(135), 레벨게이지(137), 제3레벨스위치(132), 오버플로우관(138) 등으로 구성된다. In addition to the high pressure storage tank 130, a high temperature water supply pump 140 capable of transferring high temperature condensate is installed. The high-pressure storage tank 130 is a pressure control valve 131 and a safety valve 134, a pressure gauge 135, a level gauge 137, a third level switch 132, the overflow pipe that can adjust the pressure of the tank ( 138) and the like.

고온 급수펌프(140)는 고압저장탱크(130)의 고온 응축수를 급수관(142)을 통해 증기보일러(100)로 공급하는 수단이며, 고온에서 사용 가능한 펌프로서 고온의 급수를 펌핑할 때 발생하기 쉬운 캐비테이션(cavitation)을 방지하는 구조로 되어 있다.The high temperature water supply pump 140 is a means for supplying the high temperature condensed water of the high pressure storage tank 130 to the steam boiler 100 through the water supply pipe 142 and is a pump that can be used at high temperature, and is easy to occur when pumping high temperature water supply. It is designed to prevent cavitation.

급수탱크(150)는 보충수관(151)을 통하여 공급받은 보일러 보충수를 저장하였다가 증기나 물의 누설이나 소비로 인하여 증기 보일러(100)의 급수가 부족할 때 저온 급수펌프(160)를 사용하여 급수관(142)을 통해 증기보일러(100)에 급수를 보충하는 수단이다. 급수탱크는 대기로 개방되어 있는 벤트(vent)관(152)을 통해 대기압 상태에 놓여있게 된다. The water supply tank 150 stores the boiler supplementary water supplied through the supplemental water pipe 151 and uses a low temperature water supply pump 160 when the water supply of the steam boiler 100 is insufficient due to leakage or consumption of steam or water. Means for replenishing the water to the steam boiler 100 through 142. The feed tank is placed at atmospheric pressure through a vent pipe 152 that is open to the atmosphere.

급수탱크(150)는 나아가 고압저장탱크(130)의 시스템 이상으로 고압저장탱크(130)의 사용이 불가할 시에는 종래의 증기보일러 급수 시스템과 같이 고온의 응축수를 모아 저장하여 저온 급수펌프(160)를 사용하여 증기보일러(100)에 급수를 하는 역할도 한다. When the water supply tank 150 cannot use the high pressure storage tank 130 beyond the system of the high pressure storage tank 130, the low temperature water supply pump 160 collects and stores high temperature condensed water as in the conventional steam boiler water supply system. Using also serves to supply water to the steam boiler (100).

압력조절밸브(131)는 열사용설비(120, 120')에 공급된 증기 압력보다 고압저장탱크(130)의 압력을 1 ~ 2kgf/㎠ 정도 낮게 유지하게 하는 수단이며, 이러한 압력 차이를 유지함으로써 증기트랩(122, 122')의 응축수의 배출을 원활하게 한다. Pressure control valve 131 is a means for maintaining the pressure of the high-pressure storage tank 130 by 1 ~ 2kgf / ㎠ lower than the steam pressure supplied to the heat using equipment (120, 120 '), by maintaining such a pressure difference The discharge of the condensate in the steam traps 122 and 122 'is facilitated.

이때 압력조절밸브(131)를 통하여 배출되는 재증발증기는 증기 배출관(133)을 통하여 급수탱크(150)로 유도되어 급수탱크(150)에 설치되어 있는 증기 분사장치(153)를 통하여 급수탱크(150)에 저장되어 있는 물에 분사되어 급수탱크(150)의 물을 예열하게 함으로써 에너지 손실을 최소화 한다. 증기 분사장치(153)는 말단이 노즐 형태로 되어 있으며 증기로 하여금 급수탱크(150) 내부로 고르게 분사 공급되도록 하고 있다. At this time, the flash steam discharged through the pressure control valve 131 is led to the water supply tank 150 through the steam discharge pipe 133, and the water supply tank (153) through the steam injection device 153 installed in the water supply tank 150 It is injected into the water stored in 150 to preheat the water in the water supply tank 150 to minimize the energy loss. The steam injector 153 has a distal end in the form of a nozzle and allows steam to be evenly supplied into the water supply tank 150.

증기보일러(100)에 개별적으로 구동가능하게 설치되는 제1,2레벨스위치(102, 103)는 증기보일러(100)의 수위를 개별적으로 감지하여 고온 급수펌프(140)와 저온 급수펌프(160)를 가동하게 하는 수단이다. 제1,2레벨스위치(102,103)를 이렇게 병렬로 설치하는 것은 시스템을 개별적으로 감시하는 안전장치이다. The first and second level switches 102 and 103 installed to be individually driven in the steam boiler 100 individually detect the water level of the steam boiler 100 to supply the hot water pump 140 and the low temperature water pump 160. Means to operate. The parallel installation of the first and second level switches 102 and 103 is a safety device for monitoring the system individually.

제1,2레벨스위치(102, 103)가 감지하는 수위에 차등을 두고 있다. 제1레벨스위치(102)가 먼저 수위를 감지하게 되면, 제1수위제어반(141)이 고온 급수펌프(140)를 가동하게 된다. 한편, 고압저장탱크(130)에 고온 응축수가 부족하거나 고온 급수펌프(140) 또는 제1레벨스위치(102)의 이상으로 증기보일러(100)의 급수가 부족하여 증기보일러(100)의 수위가 계속 떨어질 경우에는 제2레벨스위치(103)가 이를 감지한다. 그러면 제2수위제어반(161)은 저온 급수펌프(160)를 가동시켜 급수탱크(150)에 저장되어 있는 물을 증기보일러(100)에 공급시키도록 되어 있다. The first and second level switches 102 and 103 are differentially positioned at the water level sensed. When the first level switch 102 first detects the water level, the first water level control panel 141 operates the high temperature water supply pump 140. On the other hand, the high pressure storage tank 130 lacks high temperature condensed water or the water supply of the steam boiler 100 due to the high temperature water supply pump 140 or the first level switch 102 is insufficient, the water level of the steam boiler 100 continues. If it falls, the second level switch 103 detects this. Then, the second water level control panel 161 operates the low temperature water supply pump 160 to supply the water stored in the water supply tank 150 to the steam boiler 100.

이처럼 고압저장탱크(130)의 고온 응축수가 증기보일러(100)에 우선 공급되도록 함으로써, 증기 시스템의 가동을 원활하게 하고 고온 응축수의 손실을 방지하도록 한다. 고압저장탱크(130)에 설치되어 있는 제3레벨스위치(132)는 고압저장탱크(130)의 수위를 감지하여 고온 급수펌프(140)를 저수위에서 정지하고 고수위에서 가동토록 하여 고온 급수펌프(140)가 물이 없는 상태로 운전되지 않도록 제어하는 역할을 한다.As such, the high temperature condensed water of the high pressure storage tank 130 is first supplied to the steam boiler 100 to smoothly operate the steam system and prevent the loss of the high temperature condensed water. The third level switch 132 installed in the high pressure storage tank 130 detects the water level of the high pressure storage tank 130 to stop the high temperature water supply pump 140 at the low water level and to operate at the high water level. ) Is controlled to prevent operation without water.

또한 오버플로우관(138)은 고압저장탱크(130)의 고온 응축수의 수위가 비정상적으로 높아질 경우에 고온 응축수를 급수탱크(150)로 유도하는 수단이며, 오버플로우관(138)에는 증기트랩(122")을 설치하여 증기가 급수탱크(150)로 유출되는 것을 방지한다. In addition, the overflow pipe 138 is a means for inducing the hot condensate into the water supply tank 150 when the level of the hot condensate in the high pressure storage tank 130 becomes abnormally high, and the steam trap 122 is provided in the overflow pipe 138. ") To prevent steam from leaking into the water supply tank 150.

압력계(135) 및 레벨게이지(37)의 신호에 따른 연산 결과, 고압저장탱크(130)의 용량이 최대가 됨으로써 더 이상의 응축수를 받아들일 수 없을 때에는, 각 밸브(125,125')의 작동에 의해 응축수는 바이패스(bypass)관(124')을 통해 급수탱크(150)로 직접 공급된다. As a result of the calculation according to the signals of the pressure gauge 135 and the level gauge 37, when the capacity of the high pressure storage tank 130 becomes the maximum and no further condensate can be received, the condensed water is activated by the operation of each valve 125 and 125 '. Is directly supplied to the water supply tank 150 through a bypass pipe 124 '.

도 1은 종래의 일반적인 증기시스템의 구성도이다. 1 is a block diagram of a conventional general steam system.

도 2는 본 발명의 실시예에 의한 고온 응축수의 회수시스템의 구성도이다. 2 is a block diagram of a high temperature condensate recovery system according to an embodiment of the present invention.

* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

100 : 증기 보일러 101 : 증기 공급관100: steam boiler 101: steam supply pipe

102,103,132 ; 제1,2,3레벨스위치 110 : 증기 분배기102,103,132; 1st, 2nd, 3rd level switch 110: Steam distributor

120,120': 열사용시설 122 , 122' : 증기트랩120,120 ': Thermal facility 122, 122': Steam trap

124 : 응축수 회수관 124' : 바이패스(bypass)관 124: condensate return pipe 124 ': bypass pipe

130 : 고압저장탱크 131 : 압력조절밸브130: high pressure storage tank 131: pressure control valve

133 : 증기 배출관 135 : 압력계133 steam discharge pipe 135 pressure gauge

136 : 온도계 137 : 레벨 게이지 136: thermometer 137: level gauge

138 : 오버플로우관 140 : 고온 급수펌프138: overflow pipe 140: high temperature water supply pump

141,161 : 제1,2수위제어반 142 : 급수관141,161: 1st, 2nd water level control panel 142: water supply pipe

150 : 급수탱크 151 : 보충수관 150: water supply tank 151: supplementary water pipe

152 : 벤트(vent)관 153 : 증기 분사장치 152: vent pipe 153: steam injector

160 : 저온 급수펌프 160: low temperature water pump

Claims (4)

삭제delete 삭제delete 연료를 연소함으로써 고온의 증기를 발생시키는 증기보일러(100); 상기 증기보일러(100)에서 발생된 증기를 각 열사용시설(120,120')에 분배하는 증기분배기(110); 상기 열사용시설(120,120')에서 일부의 열이 사용된 후 배출되는 액체와 증기의 혼합물로부터 증기를 분리 배출하는 증기트랩(122,122'); 상기 증기트랩(122,122')에서 배출되는 고온의 응축수를 고압의 환경에서 집적시킴으로써 증기의 발생을 억제하기 위한 고압저장탱크(130); 상기 고압저장탱크(130)에 집적된 응축수를 상기 증기보일러(100)로 공급하는 고온 급수펌프(140); 상기 증기보일러(100) 내부에 보조적으로 공급되는 급수를 대기압 상태에서 저장하기 위한 급수탱크(150); 상기 증기보일러(100) 내부에 물이 부족할 때 상기 급수탱크(150)의 물을 상기 증기보일러(100)에 급수하기 위한 저온 급수펌프(160)를 포함하는 고온 응축수의 회수시스템에 있어서; A steam boiler 100 generating high temperature steam by burning fuel; A steam distributor (110) for distributing the steam generated in the steam boiler (100) to each heat use facility (120, 120 '); Steam traps 122 and 122 'for separating and discharging steam from a mixture of the liquid and the steam discharged after a part of the heat is used in the heat use facility 120 and 120'; A high pressure storage tank 130 for suppressing generation of steam by integrating high temperature condensate discharged from the steam traps 122 and 122 'in a high pressure environment; A high temperature water supply pump 140 for supplying the condensed water integrated in the high pressure storage tank 130 to the steam boiler 100; A water supply tank 150 for storing the water supply auxiliaryly supplied into the steam boiler 100 in an atmospheric pressure state; The high temperature condensate recovery system including a low temperature water supply pump (160) for supplying water to the steam boiler (100) when water is insufficient in the steam boiler (100); 상기 고압저장탱크(130)와 상기 급수탱크(150) 사이에 증기 배출관(133)이 연결됨으로써 상기 고압저장탱크(130)에서 발생하는 재증발증기를 상기 급수탱크(150) 내부에 분사시킴으로써 상기 급수탱크(150) 내부의 물을 예열시키도록 하는 것을 특징으로 하는 고온 응축수의 회수시스템.The steam discharge pipe 133 is connected between the high pressure storage tank 130 and the water supply tank 150 to inject the flash steam generated in the high pressure storage tank 130 into the water supply tank 150. High temperature condensate recovery system characterized in that to preheat the water in the tank (150). 삭제delete
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CN103292314A (en) * 2013-06-24 2013-09-11 江苏七O七天然制药有限公司 Condensate water recycling device
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CN112128725A (en) * 2020-09-24 2020-12-25 贵州长通装配式建材有限公司 System and method for utilizing waste heat of still kettle for producing aerated plate
CN116989328A (en) * 2023-08-15 2023-11-03 北京昭衍生物技术有限公司 Steam condensate waste heat recovery system
CN117606005A (en) * 2023-12-22 2024-02-27 克雷登热能设备(浙江)有限公司 ICS (ICS) system of steam generator

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Cited By (16)

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Publication number Priority date Publication date Assignee Title
KR101215410B1 (en) 2010-11-25 2012-12-26 영일펌프테크(주) Apparatus for recovering vent steam and drain
KR101303759B1 (en) * 2011-08-11 2013-09-04 이지성 Condensate Recovery and Automatic Water Supply System for a Closed Loop Circulating Steam Boiler
CN103292314A (en) * 2013-06-24 2013-09-11 江苏七O七天然制药有限公司 Condensate water recycling device
CN103292314B (en) * 2013-06-24 2015-05-13 江苏七O七天然制药有限公司 Condensate water recycling device
CN103629812A (en) * 2013-11-14 2014-03-12 颍上县经纬循环农业有限公司 Air heating device of flourmill
CN104819446A (en) * 2015-05-20 2015-08-05 天津鑫玛新能源科技有限公司 Energy-saving steam regeneration system and method
CN104819446B (en) * 2015-05-20 2017-01-11 天津鑫玛新能源科技有限公司 Energy-saving steam regeneration system and method
KR20180078048A (en) * 2016-12-29 2018-07-09 포스코에너지 주식회사 Blowdown system
KR101926240B1 (en) * 2016-12-29 2018-12-06 포스코에너지 주식회사 Blowdown system
CN107036069A (en) * 2017-05-18 2017-08-11 杭州江东富丽达热电有限公司 Boiler steam and water circuit
CN108506914A (en) * 2018-05-02 2018-09-07 中建环能建筑工程有限公司 A kind of electric heat storage preheating steam generator
CN112128725A (en) * 2020-09-24 2020-12-25 贵州长通装配式建材有限公司 System and method for utilizing waste heat of still kettle for producing aerated plate
CN116989328A (en) * 2023-08-15 2023-11-03 北京昭衍生物技术有限公司 Steam condensate waste heat recovery system
CN116989328B (en) * 2023-08-15 2024-03-29 北京昭衍生物技术有限公司 Steam condensate waste heat recovery system
CN117606005A (en) * 2023-12-22 2024-02-27 克雷登热能设备(浙江)有限公司 ICS (ICS) system of steam generator
CN117606005B (en) * 2023-12-22 2024-05-31 克雷登热能设备(浙江)有限公司 ICS (ICS) system of steam generator

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