KR20030064364A - Apparatus for automatically cleaning heat exchanger tube, using ball circulation pump - Google Patents

Apparatus for automatically cleaning heat exchanger tube, using ball circulation pump Download PDF

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KR20030064364A
KR20030064364A KR1020030048945A KR20030048945A KR20030064364A KR 20030064364 A KR20030064364 A KR 20030064364A KR 1020030048945 A KR1020030048945 A KR 1020030048945A KR 20030048945 A KR20030048945 A KR 20030048945A KR 20030064364 A KR20030064364 A KR 20030064364A
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South Korea
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ball
fluid
conduit
heat exchanger
recovery
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KR1020030048945A
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Korean (ko)
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KR100537943B1 (en
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설원실
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설원실
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00Details
    • F28G15/04Feeding and driving arrangements, e.g. power operation

Abstract

PURPOSE: An apparatus for automatically cleaning a heat exchanger tube, using a ball circulation pump is provided to reduce failure rate and the manufacturing cost, enable stable operation, and properly open and shut a manual valve by installing the manual valve to a bypass conduit. CONSTITUTION: A heat exchanger(3), a fluid inflow conduit(2), a fluid circulation pump(1), a ball separator(5), and a fluid outflow conduit(7) are connected in series. A ball collector(12) is installed between a ball input conduit(16) connected to the fluid inflow conduit of the inlet side of the heat exchanger and a ball-collecting conduit(8) connected to a ball discharge port of the ball separator. The ball separator and the heat exchanger are installed parallel. A check valve(15) is installed to the ball input conduit, and fluid and balls flow just from the ball collector to the fluid inflow conduit. A ball circulation pump(9), sucking in and discharging fluid and the balls from the ball separator to the ball collector, is installed to the ball-collecting conduit. A ball return fluid-collecting conduit is connected between the lower part of the ball collector and the fluid outflow conduit. A 2-ways valve(17) opening and shutting the current of fluid is installed to the ball return fluid-collecting conduit. If the ball circulation pump is operated, with the 2-ways valve closed, fluid and the balls flow, passing through the ball-collecting conduit, the ball collector, and the ball input conduit. Thus, the balls are input to the heat exchanger. If the 2-ways valve is opened, fluid and the balls flow to the ball-collecting conduit, the ball collector, and the ball return fluid-collecting conduit. Thus, the balls are collected into the ball collector.

Description

볼순환펌프를 이용한 열교환기튜브 자동세정장치{omitted}Heat exchanger tube automatic cleaning device using ball circulation pump

냉동장치나 화학플랜트에서는 셀 내부에 다수의 튜브를 배열한 셀엔 드튜브(shell & tube)형 열교환기가 많이 사용되어 왔으며, 이 형식의 열교환기에서 열매체로 사용되는 유체는 대부분 냉각탑에서 대기와 열교환하여 냉각되는데, 열교환기를 장시간 사용하게 되면 대기 중의 미생물, 먼지 등의 이물질이 유체로 유입되어 이들이 열교환기튜브 내면에 쌓여 스케일, 슬라임등의 부착물을 형성하여 열교환기 성능이 저하되고 수명이 단축되는 등의 문제가 발생하고 있어, 이들 부착물을 정기적으로 세정해 줄 필요가 있다.In the refrigeration unit or chemical plant, many shell & tube type heat exchangers have been used in which many tubes are arranged inside the cell. Most of the fluids used as heat medium in this type of heat exchanger exchange heat with the atmosphere in the cooling tower. When the heat exchanger is used for a long time, foreign substances such as microorganisms and dust in the air flow into the fluid, and they accumulate on the inner surface of the heat exchanger tube to form deposits such as scales and slime, thereby degrading heat exchanger performance and shortening the lifespan. There is a problem, and these deposits need to be cleaned regularly.

상기 부착물의 세정방법으로는 스폰지 볼과 같은 세정체를 이용하여 이것을 튜브 내에 유체흐름에 의해 강제적으로 통과시켜 튜브 내벽의 부착물을 제거하는 열교환기튜브 세정방법이 있다. 이 종래의 스폰지 볼을 세정체로 사용하는 열교환기튜브 세정장치는 열교환기를 통과하여 열교환기 출구에서 배출되는 볼을 포함한 냉각수를 체가 장착된 볼분리기에서 유체와 볼을 분리하여 유체는 다음 공정으로 보내지고 볼은 볼회수기에 저장하였다가 펌프나 압축기와 같은 유체기계에 의해 강제로 열교환기 입구측 유체유입도관에 투입하였다.As a method of cleaning the deposit, there is a method of cleaning a heat exchanger tube using a cleaning body such as a sponge ball to forcibly pass it through a fluid flow in the tube to remove deposits on the inner wall of the tube. The conventional heat exchanger tube scrubber using the sponge ball as a cleaning body separates the fluid and the ball from the sieve-mounted ball separator through the heat exchanger and coolant, including the ball discharged from the heat exchanger outlet, and sends the fluid to the next process. The high ball was stored in the ball recovery machine and forced into the fluid inlet conduit at the inlet side of the heat exchanger by a fluid machine such as a pump or a compressor.

상기와 같은 종래의 장치로는, 도 1에 도시되어 있는 바와 같이, 삼방밸브를 장착한 볼순환펌프를 이용한 열교환기튜브 자동세정장치가 있다. 이를 대략 살펴보면 다음과 같다.As a conventional apparatus as described above, as shown in Figure 1, there is a heat exchanger tube automatic cleaning device using a ball circulation pump equipped with a three-way valve. This is roughly described as follows.

열교환기와, 열교환기 입구측에 연결되는 유체유입도관과, 유체유입도관의적정위치에 설치된 유체순환펌프와, 열교환기 출구측에 설치된 볼분리기와, 볼분리기의 유체배출구에 연결된 유체유출 도관이 직렬로 연결되고, 상기 열교환기 입구측의 유체유입도관에 연결되어 분기되는 볼투입도관과 상기 볼분리기의 볼배출구에 연결되는 볼회수도관 사이에 볼회수기가 설치됨으로써 볼회수기와 열교환기가 병렬로 설치되되, 상기 볼투입도관의 적정위치에 삼방밸브가 설치되고, 상기 삼방밸브의 비어있는 연결구에는 볼회수기 하부의 연결구와 연결된 도관과 연결되되, 상기 삼방밸브와 볼회수기 하부의 연결구를 연결한 도관에는 삼방밸브 방향으로만 유체를 흐르게 하는 체크밸브가 설치되고, 상기 볼회수도관에는 볼 순환펌프가 설치되어, 상기 볼 순환펌프를 작동한 상태에서 삼방밸브를 유로를 변경하여 볼을 투입하거나 회수하는 것이 가능하게 구성되어 있다.The heat exchanger, the fluid inlet conduit connected to the heat exchanger inlet side, the fluid circulation pump installed at the proper position of the fluid inlet conduit, the ball separator installed at the heat exchanger outlet side, and the fluid outlet conduit connected to the fluid outlet of the ball separator The ball recovery unit is connected between the ball inlet conduit connected to the fluid inlet conduit on the inlet side of the heat exchanger and the ball recovery conduit connected to the ball outlet of the ball separator, so that the ball recovery unit and the heat exchanger are installed in parallel. A three-way valve is installed at an appropriate position of the ball inlet conduit, and the empty connector of the three-way valve is connected to a conduit connected to the connection of the lower ball recoverer, and the three-way valve is connected to the conduit of the three-way valve and the lower ball recoverer. The check valve for flowing the fluid only in the direction is provided, the ball recovery conduit is provided with a ball circulation pump, A three-way valve in one operating state the ring pump is configured to be able to input or number of the ball by changing the flow path.

그러나, 상기와 같은 종래의 삼방밸브를 장착한 볼순환펌프를 이용한 열교환기튜브 자동세정장치는 스폰지 볼이 통과하는 유로에 삼방밸브가 설치되어 있어 다음과 같은 문제점이 있다.However, the heat exchanger tube automatic cleaning device using the ball circulation pump equipped with the conventional three-way valve as described above has the following problems because the three-way valve is installed in the passage through which the sponge ball passes.

제일 중요한 문제점으로, 유로를 변경하기 위하여 밸브가 개폐될 때 고형물인 스폰지 볼이 밸브에 끼여 밸브 구동기(actuator)에 과부하(over load)가 걸린다. 이로 인한 밸브고장이 빈번히 발생하여 자동세정장치 성능확보에 큰 장애가 되고 있다.The most important problem is that when the valve is opened and closed to change the flow path, a solid sponge ball is caught in the valve and overloads the valve actuator. As a result, the valve failure frequently occurs, which is a major obstacle to securing the performance of the automatic cleaning device.

또한, 고형물인 스폰지 볼이 통과하는 유로에 밸브를 설치하여 개폐하여야 하므로 사용할 수 있는 밸브타입이 제한된다. 즉, 볼밸브(ball valve)와 같이 유로가 확보되는 타입은 사용이 가능하나, 글로브밸브(glove valve)와 같이 유로가 좁아지는 타입은 사용이 불가능하다.In addition, the valve type that can be used is limited because it must be opened and closed by installing a valve in the flow path through which the sponge ball, which is solid, passes. That is, a type such as a ball valve that secures a flow path can be used, but a type that narrows a flow path such as a glove valve cannot be used.

그리고 경제적인 관점에서 보더라도, 고가인 볼밸브 타입 전동 삼방 밸브를 사용해야 하므로 제작비가 고가이다.And from an economic point of view, the production cost is expensive because it requires the use of expensive ball valve type electric three-way valve.

본 발명의 볼순환펌프를 이용한 열교환기튜브 자동세정장치는 유체가 열교환기를 통과할 때 필연적으로 발생하는 압력손실을 시스템 구성에 활용한 것으로, 볼투입도관에 체크밸브가 설치되고, 볼회수도관에 볼순환펌프가 설치되고, 볼회수기 하부에 연결된 볼반송유체회수도관의 타단을 열교환기 출구측 유체유출도관에 연결하되, 이 도관에 물만 흐르는 도관에 설치하는 것이므로 비교적 다양하게 선택할 수 있는 단가가 저렴하면서도 고장이 적은 이방밸브(2-ways valve)가 설치되어 세정작용이 이루어지는 것으로, 종래의 열교환기튜부 자동세정장치에 비하여 무엇보다 전동밸브에 있어서 고장이 현저히 적으며, 또한 제작비가 저렴하고, 안정적인 운전이 가능하다.The heat exchanger tube automatic cleaning device using the ball circulation pump of the present invention utilizes the pressure loss inevitably generated when the fluid passes through the heat exchanger in the system configuration, and a check valve is installed in the ball inlet conduit, and the ball in the ball recovery conduit The circulation pump is installed, and the other end of the ball conveying fluid return conduit connected to the lower part of the ball recoverer is connected to the fluid outlet conduit at the outlet of the heat exchanger. 2-way valve is installed with less trouble, and cleaning operation is performed. Compared with the automatic heat exchanger tubing automatic washing device, the trouble is much less in the electric valve, and the production cost is low and stable operation. This is possible.

특히, 본 발명에 있어서, 볼 회수를 위하여 볼반송유체회수도관에 설치된 이방밸브을 열었을 때 유체가 볼투입도관으로는 흐르지 않고 볼회수기 하부로만 흐르도록 볼회수기로 유입되는 유량을 일정범위 내로 제한하는 것이 필요한데, 이를 위하여 볼순환펌프의 출구측과 입구측을 연결하는 바이패스도관을 설치하되 수동밸브를 이 바이패스 도관에 설치함으로써, 상기 수동밸브를 필요에 따라 적정수준으로 개폐하여 정밀하게 조절할 수 있다.Particularly, in the present invention, when the anisotropic valve installed in the ball conveying fluid recovery conduit is opened for ball recovery, the flow rate flowing into the ball recovering unit is limited within a predetermined range so that the fluid does not flow to the ball inlet conduit but only to the lower part of the ball recovering conduit. For this purpose, a bypass conduit connecting the outlet side and the inlet side of the ball circulation pump is installed, but by installing a manual valve in the bypass conduit, the manual valve can be precisely opened and closed as necessary. .

도 1은 종래의 볼순환펌프를 이용한 열교환기튜브 자동세정장치.1 is a heat exchanger tube automatic cleaning device using a conventional ball circulation pump.

도 2는 본 발명의 볼순환펌프를 이용한 열교환기튜브 자동세정장치.Figure 2 is an automatic heat exchanger tube cleaning device using a ball circulation pump of the present invention.

도 3은 본 발명 장치의 볼순환 과정을 나타낸 모식도.Figure 3 is a schematic diagram showing a ball circulation process of the present invention device.

도 4는 본 발명 장치의 볼회수 과정을 나타낸 모식도.Figure 4 is a schematic diagram showing a ball recovery process of the present invention device.

<도면의 주요 부분에 대한 부호의 설명><Description of the code | symbol about the principal part of drawing>

1 : 유체순환펌프 2 : 유체유입도관1: fluid circulation pump 2: fluid inlet conduit

3 : 열교환기 4 : 튜브(tube)3: heat exchanger 4: tube

5 : 볼분리기 6 : 볼분리기 체5 ball separator 6 ball separator sieve

7 : 유체유출도관 8 : 볼회수도관7 fluid discharge conduit 8 ball recovery conduit

9 : 볼순환펌프 10 : 바이패스(by-pass)도관9: Ball circulation pump 10: By-pass conduit

11 : 수동밸브 12 : 볼회수기11: Manual Valve 12: Ball Collector

13 : 볼(세정체) 14 : 볼회수기 체13 ball (cleaning body) 14 ball collecting body

15 : 체크밸브 16 : 볼투입도관15: check valve 16: ball inlet conduit

17 : 이방밸브(2-ways valve) 18 : 볼반송유체회수도관17: 2-ways valve 18: Ball conveying fluid return pipe

19 : 수동밸브 20 : 삼방밸브(3-ways valve)19: manual valve 20: 3-ways valve

본 발명의 구성을 제시된 도면에 따라 구체적으로 살펴보면 다음과 같다.Looking at the configuration of the present invention in detail as follows.

도 1은 종래의 삼방밸브를 설치한 볼순환펌프를 이용한 열교환기 튜브 자동세정장치이다. 도 2는 본 발명의 이방밸브를 설치한 볼순환펌프를 이용한 열교환기튜브 자동세정장치이다. 도 3은 본 발명의 볼 투입 및 순환 과정을 나타낸 모식도이다. 도 4는 본 발명의 볼회수 과정을 나타낸 모식도이다.1 is a heat exchanger tube automatic cleaning device using a ball circulation pump provided with a conventional three-way valve. Figure 2 is a heat exchanger tube automatic cleaning device using a ball circulation pump provided with an anisotropic valve of the present invention. Figure 3 is a schematic diagram showing the ball input and circulation process of the present invention. 4 is a schematic diagram showing a ball recovery process of the present invention.

본 발명은, 열교환기와, 열교환기 입구측에 연결되는 유체유입도관과, 유체유입도관의 적정위치에 설치된 유체순환펌프와, 열교환기 출구측에 설치된 볼분리기와, 볼분리기의 유체배출구에 연결된 유체유출 도관이 직렬로 연결되고, 상기 열교환기 입구측의 유체유입도관의 외주면에 연결되어 분기되는 볼투입도관과 상기 볼분리기의 볼배출구에 연결되는 볼회수도관 사이에 볼회수기가 설치됨으로써 볼회수기와 열교환기가 병렬로 설치되되, 상기 볼투입도관은 체크밸브가 설치되어 볼회수기에서 유체유입도관 방향으로만 유체와 볼 흐름이 가능케 되고, 상기 볼회수도관에는 볼분리기에서 볼회수기방향으로만 유체와 볼을 흐르게 하는 볼 순환펌프가 설치되고, 상기 볼회수기 하부와 유체유출도관 사이에는 볼회수기 내부의 체에 의하여 볼이 걸러져 유체만 흐르는 볼반송유체회수도관이 연결되되, 상기 볼반송유체회수도관에는 유체의 흐름을 개폐하는 이방밸브가 설치되어, 상기 이방밸브를 닫은 상태에서 볼순환펌프를 작동하면 유로가 볼순환펌프→볼회수기→볼투입도관→유체유입도관→열교환기→볼분리기→볼순환펌프로 형성되어 볼이 계속 열교환기를 순환하여 열교환기 세정이 이루어지고, 볼순환펌프가 작동하고 있는 상태에서 상기 이방밸브를 열면 유로가 볼순환펌프→볼회수기→볼반송유체회수도관→유체유출도관으로 형성되어 볼이 볼회수기 내부로 회수되는 것을 특징으로 하는 볼순환펌프를 이용한 열교환기튜브 자동세정장치이다.The present invention provides a heat exchanger, a fluid inlet conduit connected to the heat exchanger inlet side, a fluid circulation pump installed at an appropriate position of the fluid inlet conduit, a ball separator installed at the heat exchanger outlet side, and a fluid connected to the fluid outlet of the ball separator. The outlet conduit is connected in series, and a ball recovery unit is installed between the ball inlet conduit connected to the outer peripheral surface of the fluid inlet conduit at the inlet side of the heat exchanger and the ball recovery conduit connected to the ball outlet of the ball separator. The ball is installed in parallel, and the ball inlet conduit is provided with a check valve to allow fluid and ball flow only in the direction of the fluid inlet conduit from the ball recoverer, and the ball recovery conduit allows fluid and the ball to flow only in the direction of the ball recoverer from the ball separator. The ball circulation pump is installed, and the ball is hooked by a sieve inside the ball recoverer between the lower ball recoverer and the fluid outlet conduit. The ball conveying fluid recovery conduit flowing only the fluid is connected, but the ball conveying fluid return conduit is provided with an anisotropic valve for opening and closing the flow of the fluid. When the ball circulation pump is operated while the anisotropic valve is closed, the flow path is a ball circulation pump. → ball recovery machine → ball inlet conduit → fluid inlet conduit → heat exchanger → ball separator → ball circulation pump, the ball continues to circulate the heat exchanger to clean the heat exchanger, and the anisotropic valve in the state where the ball circulation pump is operating Opening the heat exchanger tube automatic cleaning device using the ball circulation pump, characterized in that the flow path is formed into the ball circulation pump → ball recovery pump → ball conveying fluid recovery conduit → fluid outflow conduit to recover the ball into the ball recovery.

상기와 같이 구성되는 본 발명의 각 구성품의 결합관계 및 유로는 제시된 도면에 잘 나타나 있다.The coupling relationship and the flow path of each component of the present invention configured as described above are well shown in the drawings shown.

상기와 같이 구성되는 본 발명의 작동 과정과 원리를 보다 구체적으로 살펴보면 다음과 같다.Looking at the operation process and principle of the present invention configured as described above in more detail.

일반적으로, 열교환기튜브 자동세정장치는 적당한 시간 간격을 두고 정지상태와 작동상태를 반복하게 되며, 이 정지상태와 작동상태를 제어하는 것은 별도의 제어반에서 제어하는 것으로, 사전에 입력된 프로그램에 따라 제어반에서 전기적 신호를 보내면 이를 인지한 전동밸브나 펌프 등이 작용하여 정지상태 또는 작동상태가 된다. 상기 정지상태는 열교환기튜브 자동세정장치가 작용을 하지 않는 상태를 의미하며, 이 때 유체는 메인 펌프인 유체순환펌프의 작동에 의해 유체가 유체유입도관과 열교환기와 볼분리기와 유체유출도관을 따라서만 흐르게 된다.In general, the heat exchanger tube automatic cleaning device repeats the stopped state and the operating state at appropriate time intervals, and the controlling of the stopped state and the operating state is controlled by a separate control panel. When an electric signal is sent from the control panel, an electric valve or a pump that recognizes the electric signal acts to stop or operate. The stationary state refers to a state in which the heat exchanger tube automatic cleaning device does not operate, wherein the fluid is connected to the fluid inlet conduit, the heat exchanger, the ball separator, and the fluid outlet conduit by the operation of the fluid circulation pump, which is the main pump. Only flows.

본 발명에 있어서, 정지상태는 이방밸브는 닫혀있고 볼순환펌프는 정지 상태에 있는 것을 의미하며, 작동상태는 다시 볼순환 과정과 볼회수 과정으로 나눌 수 있는 데, 볼순환 과정은 볼반송유체회수도관에 설치된 이방밸브가 닫혀있는 상태에서 볼순환펌프가 작동되면 유로가 볼순환펌프→볼회수기→볼투입도관→유체유입도관→열교환기→볼분리기→볼순환펌프로 형성되어 이 유로를 따라 유체와 볼이 순환하여 흐르게 되어 세정작용이 이루어지는 과정으로, 이는 제시된 도 3에 잘 나타나 있다.In the present invention, the stopped state means that the anisotropic valve is closed and the ball circulation pump is in a stopped state, and the operating state can be divided into a ball circulation process and a ball recovery process, wherein the ball circulation process is a ball transfer fluid circuit. If the ball circulation pump is operated while the anisotropic valve installed in the water pipe is closed, the flow path is formed by the ball circulation pump → ball recovery machine → ball inlet conduit → fluid inlet conduit → heat exchanger → ball separator → ball circulation pump And the ball is circulated and the cleaning process is performed, which is shown in Figure 3 well presented.

볼회수 과정은 상기 볼순환 과정 다음에 이어지는 과정으로, 볼순환 펌프는 계속 작동하고 있는 상태에서 볼반송유체회수도관에 설치된 이방밸브를 열면 유로가 볼분리기→볼순환펌프→볼회수기→볼반송유체회수도관→유체유출도관으로 형성되어 볼이 볼회수기 내부로 회수되어 저장되는 과정으로, 제시된 도 4에 잘 나타나 있다. 여기서 볼회수시의 유로형성에 대해 좀 더 구체적으로 설명하면, 열교환기를 중심으로 볼 때 열교환기 출구측 즉 유체유출도관측은 열교환기 입구측 즉 유체유입도관보다 적어도 열교환기에서 발생하는 압력손실만큼 압력이 낮다. 열교환기에서 발생하는 이 압력손실과 볼투입도관에 설치된 체크밸브의 기능이 복합적으로 작용하여 볼투입도관에 별도로 밸브를 설치하지 않고 볼반송유체회수도관에만 전동밸브 등 유체흐름을 개폐할 수 있는 밸브를 설치하여도 이 밸브 열면 유체흐름이 볼분리기→볼순환펌프→볼회수기→볼반송유체회수도관→유체유출도관으로 형성되어 볼회수가 가능하다.The ball recovery process is a process following the ball circulation process. When the ball circulation pump is opened and the anisotropic valve installed in the ball transfer fluid recovery conduit is opened, the flow path is separated from the ball separator → ball circulation pump → ball recycler → ball transfer fluid. Formed as a recovery conduit → fluid outflow conduit, the ball is recovered and stored inside the ball recovery machine, as shown in FIG. 4. Here, the flow path formation at the time of ball recovery will be described in more detail. In the heat exchanger, the heat exchanger outlet side, that is, the fluid outlet conduit side, is at least as much as the pressure loss generated in the heat exchanger than the heat exchanger inlet side, that is, the fluid inlet conduit. Low pressure This pressure loss generated in the heat exchanger and the function of the check valve installed in the ball inlet conduit act in combination to open / close the flow of fluid such as an electric valve only in the ball return fluid return conduit without installing a separate valve in the ball inlet conduit. Even if the valve is installed, the fluid flow is formed by the ball separator, the ball circulation pump, the ball recovery device, the ball conveying fluid recovery conduit, and the fluid outflow conduit.

이방밸브를 닫은 상태에서 볼순환펌프를 운전하면 볼이 체크밸브, 볼투입도관을 거쳐 열교환기 입구측 유체유입도관에 투입되고, 투입된 스폰지볼은 유체유입도관 내를 흐르는 유체흐름에 의해 강제적으로 열교환기의 튜브 내부를 통과하며, 이때 튜브내부의 스케일, 슬라임 등의 부착물을 세정한다. 열교환기를 통과한 볼은 볼분리기에서 유체와 분리되며, 일부 유체와 함께 볼순환펌프에 흡입 · 토출되어 볼회수기를 거쳐 다시 열교환기로 투입된다. 이렇게 일정시간 순환을 반복한 다음 도시되지 않은 자동제어장치(제어반)에 의해 볼반송유체회수도관에 설치되어 있는 이방밸브를 열면 볼순환펌프에서 토출된 유체는 열교환기에서의 압력손실과 체크밸브의 역할에 의해 볼투입도관으로는 흐름이 생기지 않고 볼회수기 하부로만 흐르게 되며, 이때 볼은 볼회수기 체에 의해 걸려지고 유체만 볼반송유체회수도관을 통하여 유체유출도관으로 흘려 나가게 된다.If the ball circulation pump is operated while the anisotropic valve is closed, the ball is introduced into the fluid inlet conduit at the inlet side of the heat exchanger through the check valve and the ball inlet conduit, and the injected sponge ball is forcibly exchanged by the fluid flow in the fluid inlet conduit. It passes through the inside of the tube of the group, and at this time, to clean the deposits such as scale, slime inside the tube. The ball passing through the heat exchanger is separated from the fluid in the ball separator, and is sucked and discharged into the ball circulation pump along with some fluid, and then passed through the ball recuperator to the heat exchanger. After repeating the circulation for a certain period of time and opening the anisotropic valve installed in the ball conveying fluid return pipe by an automatic control device (not shown), the fluid discharged from the ball circulation pump is Due to the role, no flow is generated in the ball inlet conduit, but only flows to the lower part of the ball recoverer. At this time, the ball is caught by the ball recovering gas, and only the fluid flows through the ball conveying fluid recovery conduit to the fluid outflow conduit.

볼회수를 위하여 이방밸브를 열었을 때 소량의 유체가 볼투입도관으로도 흐르는 현상이 생길 수도 있다. 따라서, 유체가 볼투입도관으로는 흐르지 않고 볼회수기 하부의 볼반송유체회수도관으로만 흐르게 하기 위하여, 볼회수기 내부로 유입되는 유량을 일정범위 내로 제한하는 것이 필요한 데, 볼순환펌프 흡입측과 토출측이 연통되게 바이패스도관을 설치하되 수동밸브를 바이패스도관에 설치하여 이 수동밸브 개도를 적절하게 조절함으로써 회수기로 유입되는 유량을 일정범위 내로 맞출 수 있다.When the anisotropic valve is opened for ball recovery, a small amount of fluid may also flow into the ball inlet conduit. Therefore, in order for the fluid not to flow to the ball inlet conduit but only to the ball conveying fluid recovery conduit under the ball recoverer, it is necessary to limit the flow rate flowing into the ball recoverer within a certain range. The bypass conduit is installed in this communication, but the manual valve is installed in the bypass conduit to adjust the opening degree of the manual valve appropriately so that the flow rate flowing into the recovery device can be adjusted within a certain range.

본 발명에 있어서, 열교환기와, 열교환기 입구측에 연결되는 유체유입도관과, 유체유입도관의 적정위치에 설치된 유체순환펌프와, 열교환기 출구측에 설치된 볼분리기와, 볼분리기의 유체배출구에 연결된 유체유출도관이 직렬로 연결되고, 상기 열교환기 입구측의 유체유입도관의 외주면에 연결되어 분기되는 볼투입도관과 상기 볼분리기의 볼배출구에 연결되는 볼회수도관 사이에 볼회수기가 설치됨으로써 볼회수기와 열교환기가 병렬로 설치되는 구성, 간단히 요약하면 열교환기와 병렬로 볼회수기(또는 볼저장탱크라고도 한다.)를 구성하는 것은, 도 1에 도시된 바와 같이, 종래의 볼순환펌프를 이용하는 열교환기에서도 기본적으로 이용되는 구성으로, 볼순환을 위한 일반적인 구성이라고 볼 수 있다.In the present invention, a heat exchanger, a fluid inlet conduit connected to the heat exchanger inlet side, a fluid circulation pump installed at an appropriate position of the fluid inlet conduit, a ball separator installed at the heat exchanger outlet side, and a fluid outlet of the ball separator A fluid recovery conduit is connected in series, and a ball recovery unit is installed between the ball inlet conduit connected to the outer circumferential surface of the fluid inlet conduit at the inlet side of the heat exchanger and the ball recovery conduit connected to the ball outlet of the ball separator. The configuration in which the heat exchangers are installed in parallel, in brief, to construct a ball recoverer (or ball storage tank) in parallel with the heat exchanger, is basically the same in a heat exchanger using a conventional ball circulation pump, as shown in FIG. 1. The configuration used as, it can be seen as a general configuration for the ball circulation.

그러나, 상기 볼순환을 위한 구성에 덧붙여 어떤 식으로 볼회수 과정에 필요한 유로를 구성하느냐 하는 것은 당업자에 의하여 여러 가지로 궁리되는 기술로서, 이 때 우선적으로 고려할 사항으로 설치비용과 작동의 안정성을 들 수 있다.However, in addition to the configuration for the ball circulation, how to configure the flow path required for the ball recovery process is a technique devised in various ways by those skilled in the art, the first consideration is the installation cost and stability of operation Can be.

설치비용과 작동의 안정성을 확보하기 위해서 구성품의 수를 최소한으로 하되, 상기 구성품은 단가가 저렴하면서도 고장이 적은 제품을 사용하되 열교환기튜브 자동세정장치의 기능이 충분히 구현되도록 구성하여야 하는데, 이와 같은 관점에서 본 발명의 시스템 구성은 이방밸브 1개로 삼방밸브 기능을 만족하도록 시스템을 구성하여 제작단가를 낮추었다는 점 외, 이방밸브를 볼이 유체에 섞여 흐르는 유로가 아니라 유체만 흐르는 유로에 설치함으로서 고형물인 볼이 밸브에 끼여 발생하는 고장의 원인을 근본적으로 제거였다는 특징이 있다.In order to secure the installation cost and operation stability, the number of components is minimized, but the components should be configured to use the products with low cost and low trouble, but fully realize the function of the heat exchanger tube automatic cleaning device. From the point of view of the present invention, the system configuration of the present invention reduces the manufacturing cost by configuring the system to satisfy the function of the three-way valve with one anisotropic valve, and installs the anisotropic valve in the fluid flow path instead of the flow path where the ball is mixed with the fluid. It is characterized by the fact that the in ball has essentially eliminated the cause of the failure caused by the valve.

상기한 바와 같이, 본 발명은 열교환기에서 발생하는 압력손실을 시스템 구성에 활용함으로써 삼방밸브(또는 이방밸브 2개)의 기능을 한 개의 이방밸브 설치로 대신할 수 있을 뿐 아니라, 이방밸브의 설치위치를 볼과 유체가 섞여 흐르는 유로가 아니라 유체만 흐르는 유로에 설치함으로써 종래장치에서 빈번히 발생했던 볼이 밸브에 끼여 발생하는 고장의 원인을 근본적으로 제거했다.As described above, the present invention can replace the function of the three-way valve (or two anisotropic valves) by installing one anisotropic valve by utilizing the pressure loss generated in the heat exchanger in the system configuration, and the installation of the anisotropic valve. By installing the position in the flow path where only the fluid flows, not the flow path where the fluid is mixed with the ball, the cause of the failure caused by the ball stuck in the valve, which is frequently generated in the conventional apparatus, is fundamentally eliminated.

Claims (2)

열교환기(3)와, 열교환기(3) 입구측에 연결되는 유체유입도관(2)과, 유체유입도관(2)의 적정위치에 설치된 유체순환펌프(1)와, 열교환기(3) 출구측에 설치된 볼분리기(5)와, 볼분리기(5)의 유체배출구에 연결된 유체유출도관(7)이 직렬로 연결되고, 상기 열교환기(3) 입구측의 유체유입도관(2)에 연결되는 볼투입도관(16)과 상기 볼분리기(6)의 볼배출구에 연결되는 볼회수도관(8) 사이에 볼회수기(12)가 설치됨으로써 볼회수기(12)와 열교환기(3)가 병렬로 설치되되, 상기 볼투입도관(16)에는 체크밸브(15)가 설치되어 볼회수기(12)에서 유체유입도관(2) 방향으로만 유체와 볼 흐름이 가능케 되고, 상기 볼회수도관(8)에는 볼분리기(5)에서 볼회수기 방향으로 유체와 볼을 흡입하여 토출하는 볼순환펌프(9)가 설치되고, 상기 볼회수기(12) 하부와 유체유출도관(7) 사이에는 볼회수기 내부의 체(14)에 의하여 볼이 걸러져 유체만 흐르는 볼반송유체회수도관(18)이 연결되되, 상기 볼반송유체회수도관(18)에는 유체의 흐름을 개폐하는 이방밸브(17)가 설치되어, 상기 이방밸브(17)를 닫은 상태에서 볼순환펌프(9)를 작동하면 볼회수도관(8)과 볼회수기(12)와 볼투입도관(16) 등을 거쳐 유체와 볼이 흐르게 됨으로써 볼이 열교환기(3)로 투입되는 세정이 이루어지고, 상기 이방밸브(17)를 열면 유체가 볼회수도관(8)과 볼회수기(12)와 볼반송유체회수도관(18) 등으로 흐르게 됨으로써 볼이 볼회수기 내부로 회수되는 것을 특징으로 하는 볼순환펌프를 이용한 열교환기튜브 자동세정장치.A heat exchanger 3, a fluid inlet conduit 2 connected to the inlet side of the heat exchanger 3, a fluid circulation pump 1 installed at an appropriate position of the fluid inlet conduit 2, and an outlet of the heat exchanger 3 The ball separator 5 installed at the side and the fluid outlet conduit 7 connected to the fluid outlet of the ball separator 5 are connected in series, and are connected to the fluid inlet conduit 2 at the inlet side of the heat exchanger 3. Since the ball recovery machine 12 is installed between the ball input conduit 16 and the ball recovery conduit 8 connected to the ball outlet of the ball separator 6, the ball recovery machine 12 and the heat exchanger 3 are installed in parallel. The ball inlet conduit 16 has a check valve 15 installed to allow fluid and ball flow only in the direction of the fluid inlet conduit 2 from the ball recoverer 12. In 5), a ball circulation pump 9 for sucking and discharging fluid and balls in the direction of the ball recovery machine is installed, and between the lower part of the ball recovery machine 12 and the fluid discharge conduit 7. A ball transfer fluid recovery conduit 18 through which only a fluid is filtered by a ball is filtered by a sieve 14 inside the ball recoverer is connected, and the ball transfer fluid recovery conduit 18 has an anisotropic valve 17 for opening and closing a fluid flow. When the ball circulation pump 9 is operated while the anisotropic valve 17 is closed, the fluid and the ball flow through the ball recovery conduit 8, the ball recovery machine 12, the ball inlet conduit 16, and the like. Cleaning is introduced into the heat exchanger (3), and when the anisotropic valve (17) is opened, fluid flows into the ball recovery conduit (8), the ball recovery unit (12), the ball conveying fluid recovery conduit (18), and the like. Heat exchanger tube automatic cleaning device using a ball circulation pump, characterized in that the recovery to the ball recovery. 제 1항에 있어서, 상기 볼순환펌프(9)가 설치된 볼회수도관(8)에 있어서, 상기 볼순환펌프(9)의 양측에 별도의 바이패스도관(10)을 더 연결하되, 상기 바이패스도관(10)에는 수동밸브(11)를 설치하여, 이 수동밸브(11)를 적절하게 개폐함으로써, 볼회수 시 유체가 볼투입도관(16)으로는 흐르지 않고 볼회수기(12) 하부의 볼반송유체회수도관(18)으로만 흐르게 되는 것을 특징으로 하는 볼순환펌프를 이용한 열교환기튜브 자동세정장치.The method of claim 1, wherein in the ball recovery conduit (8) in which the ball circulation pump (9) is installed, a separate bypass conduit (10) is further connected to both sides of the ball circulation pump (9). The valve 10 is provided with a manual valve 11 so that the manual valve 11 can be opened and closed appropriately, so that the fluid does not flow into the ball inlet conduit 16 at the time of ball recovery, but the ball conveying fluid under the ball collector 12 Heat exchanger tube automatic cleaning device using a ball circulation pump, characterized in that only flowing to the recovery conduit (18).
KR10-2003-0048945A 2003-07-14 2003-07-14 Heat Exchanger tube auto cleaning system using a ball circulation pump KR100537943B1 (en)

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WO2012044249A1 (en) * 2010-10-01 2012-04-05 Hvs Engineering Pte Ltd A cleaning system
US8181693B2 (en) * 2006-11-17 2012-05-22 Korea Institute Of Energy Research Self-cleaning heat exchanger using system for supplying solid particle and water

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KR101088603B1 (en) * 2009-06-25 2011-12-06 동명대학교산학협력단 Ball separator on automatic cleaning apparatus of multi pass heat exchanger
US9835393B2 (en) 2012-09-20 2017-12-05 Jeongwoo Industrial Machine Co., Ltd. Apparatus for circulating balls for cleaning a pipe line
KR101432521B1 (en) * 2012-09-20 2014-08-21 정우산기 주식회사 Ball Recirculation Apparatus
KR101954997B1 (en) 2016-11-28 2019-03-07 주식회사 이엠이 Semi-continuous circulation heat exchanger cleaning system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8181693B2 (en) * 2006-11-17 2012-05-22 Korea Institute Of Energy Research Self-cleaning heat exchanger using system for supplying solid particle and water
WO2012044249A1 (en) * 2010-10-01 2012-04-05 Hvs Engineering Pte Ltd A cleaning system
CN103189709A (en) * 2010-10-01 2013-07-03 Hvs工程私人有限公司 A cleaning system
US9182183B2 (en) 2010-10-01 2015-11-10 Hvs Engineering Pte Ltd Cleaning system

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