KR100437074B1 - foam injection apparatus for fire fighting - Google Patents

foam injection apparatus for fire fighting Download PDF

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Publication number
KR100437074B1
KR100437074B1 KR10-2001-0064679A KR20010064679A KR100437074B1 KR 100437074 B1 KR100437074 B1 KR 100437074B1 KR 20010064679 A KR20010064679 A KR 20010064679A KR 100437074 B1 KR100437074 B1 KR 100437074B1
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KR
South Korea
Prior art keywords
water
foam
liquid
foam liquid
supply line
Prior art date
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KR10-2001-0064679A
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Korean (ko)
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KR20030033233A (en
Inventor
홍영기
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홍영기
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Priority to KR10-2001-0064679A priority Critical patent/KR100437074B1/en
Publication of KR20030033233A publication Critical patent/KR20030033233A/en
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Publication of KR100437074B1 publication Critical patent/KR100437074B1/en

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/28—Accessories for delivery devices, e.g. supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2113—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2209—Controlling the mixing process as a whole, i.e. involving a complete monitoring and controlling of the mixing process during the whole mixing cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

본 발명은 물이 수납된 물탱크(21)와, 폼액이 수납된 폼탱크(22)와, 물 또는 폼액의 혼합액을 펌핑하는 펌프(23)와, 상기 펌프(23)에 의해 공급된 물 또는 폼액의 혼합액을 분사하는 방수구(24)와, 물과 폼액을 혼합하는 약액혼합장치(25)와, 방수구(24)측으로 토출되는 물/폼액공급라인(23a)에 설치되어 라인(23a)내의 압력을 낮추는 약액작동밸브(24a)와; 물/폼액공급라인(23a)의 압력차를 검출하는 압력센서(29)와; 약액혼합장치(25)에 물을 공급하는 물공급라인(25)의 유로를 개폐하는 자동송수밸브(28)와; 약액혼합장치(25)에 폼액을 공급하는 폼액공급라인(22a)의 유로를 개폐하는 폼자동메인밸브(27)와; 압력센서(29)에 의해 검출된 신호에 의해 상기 자동송수밸브(28) 및 폼자동메인밸브(27)를 개폐시켜 물과 폼액을 혼합시키는 제어부(30)를 포함하여 구성됨으로써 관창수가 직접 폼액 분사를 간편하게 조작할 수 있는 소방용 폼액 분사장치에 관한 것이다.The present invention provides a water tank 21 containing water, a foam tank 22 containing foam liquid, a pump 23 for pumping a mixed liquid of water or foam liquid, water supplied by the pump 23 or The pressure in the line 23a is provided in the waterproof port 24 for spraying the mixed liquid of the foam liquid, the chemical liquid mixing device 25 for mixing water and the foam liquid, and the water / foam liquid supply line 23a discharged to the waterproof port 24 side. And chemical liquid operation valve (24a) to lower the; A pressure sensor 29 for detecting a pressure difference between the water / foam liquid supply line 23a; An automatic water supply valve 28 for opening and closing a flow path of the water supply line 25 for supplying water to the chemical liquid mixing device 25; A foam automatic main valve 27 for opening and closing the flow path of the foam liquid supply line 22a for supplying the foam liquid to the chemical liquid mixing device 25; It is configured to include a control unit 30 for mixing the water and the foam liquid by opening and closing the automatic water supply valve 28 and the foam automatic main valve 27 in response to the signal detected by the pressure sensor 29, so that the water can directly spray the foam liquid It relates to a fire fighting foam liquid injection device that can be easily operated.

Description

소방용 폼액 분사장치{foam injection apparatus for fire fighting}Foam injection apparatus for fire fighting

본 발명은 소방용 폼액의 분사장치에 관한 것으로, 보다 상세하게는 방수구와 연결된 방출라인 내에 압력차를 발생시켜 이러한 압력차를 이용하여 폼액공급라인을 개폐시켜 폼액 분사를 실시하도록 함으로써 관창수가 소화현장에서 간편하게 폼액 분사의 조작을 실시하도록 한 소방용 폼액 분사장치에 관한 것이다.The present invention relates to a device for injecting a foam liquid for fire fighting, and more particularly, by generating a pressure difference in the discharge line connected to the waterproof port, by using the pressure difference to open and close the foam liquid supply line to perform the foam liquid injection in the fire extinguishing site The present invention relates to a foaming liquid injector for fire fighting which can be easily operated.

일반적으로 소방차는 사고현장에 출동한 소방대의 활동을 전체적으로 지휘하는 지휘차와, 화재발생시 진화작업을 목적으로 하는 펌프차와, 펌프차에 물을 공급하는 탱크차와, 대형 고층건물에 소방대가 진입가능하도록 하여 인명을 구출하도록 하는 사다리차와, 인명구조에 필요한 각종 안전도구가 구비된 구조차 및 화학 소방차 등으로 구별되어 있다.In general, a fire truck is a command vehicle that leads the entire fire brigade's activities at an accident site, a pump car for extinguishing a fire in the event of a fire, a tank car supplying water to a pump car, and a fire brigade to enter a large high-rise building. It is divided into a ladder truck to rescue lives, a rescue truck equipped with various safety tools required for lifesaving, a chemical fire truck, and the like.

이 중에서 화학소방차는 물이나 간단한 화학약제로 진화가 불가능한 경우에 주로 사용되는데 물탱크와 폼탱크, 물펌프가 설치되어 있으며, 물펌프에는 폼탱크와 물탱크가 연결되어 폼액 및 물이 물펌프에 공급되도록 구성되어 있고, 물펌프에 공급된 폼액 및 물은 적절히 혼합되면서 폼방수라인을 통해 폼방수구로 배출된다.Among these, chemical fire engines are mainly used when water or simple chemicals cannot be extinguished. Water tanks, foam tanks, and water pumps are installed, and foam tanks and water tanks are connected to the foam pump and water to the water pump. It is configured to be supplied, and the foam liquid and water supplied to the water pump are discharged to the foam drain through the foam waterproof line while being properly mixed.

이러한 소방용 폼액 분사장치의 일예를 도 1을 참조하여 설명하면, 물탱크 (1)와, 상기 물탱크(1)에 연결되어 펌프토출라인(3)으로 물을 압송하는 물펌프(2)와, 물방수라인(5)에 의해 펌프토출라인(3)에 연결되고 물제어밸브(4)가 설치되어 물제어밸브(4)의 개방시 물펌프(2)에 의해 압송된 물이 분사되는 물방수구(6)와, 일단에 펌프토출라인(3)이 연결되고 타단에 폼방수라인(7)이 연결되며 물방수라인 (5)의 폐쇄시 개방되어 상기 펌프토출라인(3) 내의 물 또는 폼액을 폼방수라인(7)으로 유도하는 자동비례밸브(15)와, 상기 폼방수라인(7)에 연결되고 폼액이 분사되는 폼방수구(8)와, 폼액밸브(10)가 설치된 폼액흡입구(11)에 의해 상기 자동비례밸브(15)에 연결된 폼탱크(9)와, 상기 폼배관(12)에 의해 상기 자동비례밸브(15)에 연결되고 송수밸브(13a)가 설치된 가압라인(13)에 의해 물펌프(2)에 연결된 폼혼합기(16)와, 상기 폼혼합기(16)와 물펌프(2) 사이에 연결되어 폼혼합기(16) 내에서 물과 혼합된 폼액을 상기 물펌프(2)로 공급하는 폼혼합액방출라인(14)로 구성되어 있다.An example of such a fire fighting foam liquid injector will be described with reference to FIG. 1, a water tank 1, a water pump 2 connected to the water tank 1 and pumping water to a pump discharge line 3; The water discharge port is connected to the pump discharge line (3) by the water waterproof line (5) and the water control valve (4) is installed so that the water pumped by the water pump (2) is injected when the water control valve (4) is opened. (6), and the pump discharge line (3) is connected to one end and the foam waterproofing line (7) is connected to the other end and opened when the water waterproofing line (5) is closed to open water or foam liquid in the pump discharge line (3). Foam proportional inlet 11 with automatic proportional valve 15 leading to the foam waterproofing line 7, foam waterproofing port 8 connected to the foam waterproofing line 7, and sprayed with foam liquid, and foam liquid valve 10. Pressurized tank (9) connected to the automatic proportional valve (15) by means of, and connected to the automatic proportional valve (15) by the form pipe 12, the water supply valve (13a) is installed The foam liquid mixed with water in the foam mixer 16 connected to the water pump 2 by the 13 and the foam mixer 16 and the water pump 2 is mixed with the water. It consists of the foam mixture liquid discharge line 14 supplied to the pump 2.

그러나 이와 같이 구성되는 소방용 폼액 분사장치는 물과 폼액의 혼합량을 일정한 비율로 혼합하는 효과는 있으나, 폼액분사를 실시하기 위해서는 소화작업자의 이외의 폼액밸브를 최초에 작동하기 위한 작업인원이 더 필요하게 되는 문제가 있다.However, the foam fire spraying device configured as described above has an effect of mixing the mixing amount of the water and the foam liquid at a constant ratio. There is a problem.

또한, 이러한 문제점을 해소하기 위해 유선 또는 무선으로 폼액밸브를 작동시키는 방법이 제안되어 있으나, 유선인 경우에는 작업자가 작업위치를 원거리로 이동하기가 번거롭고 단선의 염려가 있으며, 무선일 경우에는 거리가 멀어지거나 신호가 미치지 못하는 지하실 등에서 오작동되는 등의 여러 가지 문제가 있다.In addition, in order to solve this problem, a method of operating the foam liquid valve by wire or wireless has been proposed, but in the case of a wired line, it is cumbersome for the worker to move the work position remotely and there is a risk of disconnection. There are various problems, such as malfunctioning in a basement where it is far away or the signal does not reach.

한편, 폼액분사작업은 약재가 포함되어 있기 때문에 소화수에 의하여 소화작업환경을 오염시킬 수 있어 선별적으로 작업을 실시하여야 하므로 신속한 분사 개시 및 분사 종료를 실시하여야 하는데 종래에는 이를 충족하지 못하는 한계가 있다.On the other hand, since the foam liquid spraying operation includes chemicals, it is possible to contaminate the extinguishing work environment by the extinguishing water, so the work must be carried out selectively. have.

이와 같은 문제점을 감안하여 창안된 본 발명의 목적은 1인의 관창수에 의해 물분사 및 폼액분사를 선택적으로 조작가능한 소방용 폼액 분사장치를 제공하는 것이다.It is an object of the present invention devised in view of the above problems to provide a fire fighting foam liquid injector which can selectively operate water spray and foam liquid spray by a single mandatory water.

본 발명의 다른 목적은 관창수의 작업위치가 소방차와 원거리에 떨어져 있더라도 폼액 분사의 조작을 정확하게 수행할 수 있도록 한 소방용 폼액 분사장치를 제공하는 것이다.Another object of the present invention is to provide a foaming liquid injector for firefighting that can accurately perform the operation of the foaming liquid injection even when the work position of the water pipe is far from the fire truck.

본 발명의 또 다른 목적은 폼액 분사의 조작을 신속하게 실시할 수 있어 소방작업의 효율성을 향상시킬 수 있는 소방용 폼액 분사장치를 제공하는 것이다.Still another object of the present invention is to provide a foaming liquid injector for fire fighting which can quickly perform the operation of foaming liquid injection and thus improve the efficiency of fire fighting operations.

도 1은 종래 기술에 의한 소방용 폼액 분사장치의 회로도.1 is a circuit diagram of a foam liquid spraying device according to the prior art.

도 2는 본 발명에 의한 소방용 폼액 분사장치의 회로도.2 is a circuit diagram of a foam liquid injector for fire fighting according to the present invention.

도 3은 본 발명에 적용된 제어부의 구성도.3 is a block diagram of a control unit applied to the present invention.

( 도면의 주요 부분에 대한 부호의 설명 )(Explanation of symbols for the main parts of the drawing)

21 ; 물탱크 22 ; 폼탱크21; Water tank 22; Foam tank

22a ; 폼액공급라인 23 ; 펌프22a; Foam liquid supply line 23; Pump

23a ; 물/폼액공급라인 23b ; 물공급라인23a; Water / foam liquid supply line 23b; Water supply line

23c ; 바이패스라인 24 ; 방수구23c; Bypass line 24; Waterproof

25 ; 약액혼합장치 25a ; 혼합액공급라인25; Chemical liquid mixing apparatus 25a; Mixed Liquid Supply Line

26 ; 릴리프밸브 27 ; 폼자동메인밸브26; Relief valve 27; Foam Automatic Main Valve

28 ; 자동송수밸브 29 ; 압력센서28; Automatic water valve 29; Pressure sensor

30 ; 제어부 31 ; 증폭회로30; Control unit 31; Amplification circuit

32 ; 2진 카운터 33 ; 전자계전기32; Binary counter 33; Relay

상기 목적을 달성하기 위한 본 발명은 물이 수납된 물탱크와, 폼액이 수납된 폼탱크와, 물 또는 폼액의 혼합액을 펌핑하는 펌프와, 상기 펌프에 의해 공급된 물 또는 폼액의 혼합액을 분사하는 방수구와, 물과 폼액을 혼합하는 약액혼합장치를 구비하는 소방용 폼액 분사장치에 있어서, 상기 펌프와 방수구를 연결하는 물/폼액공급라인에 설치되어 라인내의 압력을 낮추는 약액작동밸브와, 상기 물/폼액공급라인의 압력차를 검출하는 압력센서와, 상기 약액혼합장치에 물을 공급하는 물공급라인의 유로를 개폐하는 자동송수밸브와, 상기 약액혼합장치에 폼액을 공급하는 폼액공급라인의 유로를 개폐하는 폼자동메인밸브와, 상기 압력센서에 의해 검출된 신호에 의해 상기 자동송수밸브 및 폼자동메인밸브를 개폐시켜 물과 폼액을 혼합시키는 제어부를 포함하여 구성된다.The present invention for achieving the above object is a water tank containing water, a foam tank containing the foam liquid, a pump for pumping a mixed liquid of water or foam liquid, and spraying the mixed liquid of water or foam liquid supplied by the pump A fire fighting foam liquid injector having a waterproof port and a chemical liquid mixing device for mixing water and foam liquid, comprising: a chemical liquid operation valve installed at a water / foam liquid supply line connecting the pump and the waterproof port to lower pressure in the line; Pressure sensor for detecting the pressure difference of the foam liquid supply line, an automatic water supply valve for opening and closing the flow path of the water supply line for supplying water to the chemical liquid mixing device, and the flow path of the foam liquid supply line for supplying the foam liquid to the chemical liquid mixing device And a control unit for opening and closing the foam automatic main valve and opening and closing the automatic water supply valve and the foam automatic main valve based on a signal detected by the pressure sensor. It is configured to include.

상기 제어부는 증폭회로와, 증폭회로에 증폭된 신호를 카운팅하는 2진카운터와, 2진카운터에서 카운팅된 신호에 의해 릴레이를 동작시켜 폼자동메인벨브와 자동송수밸브를 개폐시키는 전자계전기로 구성된 것이 바람직하다.The control unit comprises an amplifying circuit, a binary counter for counting the signal amplified by the amplification circuit, and an electromagnetic relay for opening and closing the form automatic main valve and the automatic water supply valve by operating a relay by the signal counted in the binary counter. desirable.

이하에서는 본 발명의 바람직한 일 실시예를 첨부도면에 의거하여 설명한다.Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

본 발명의 일 실시예는 도 2에 도시한 바와 같은 물탱크(21)와 폼탱크(22)가 물공급라인(21a)과 폼액공급라인(22a)에 의해 펌프(23)와 연결되어 있고, 펌프(23)는 관창 또는 물분사건 등의 방수구(24)와 물/폼액공급라인(23a)으로 연결되어 있다.In an embodiment of the present invention, the water tank 21 and the foam tank 22 as shown in FIG. 2 are connected to the pump 23 by the water supply line 21a and the foam liquid supply line 22a, The pump 23 is connected to a waterproof port 24 such as a pipe window or a water spray by a water / foam liquid supply line 23a.

폼액공급라인(22a) 상에는 약액혼합장치(25)가 설치되어 있고 약액혼합장치 (25)는 펌프(23)와 연결된 물공급라인(23b)과 연결되어 있어 폼액공급라인(22a)에서 공급되는 폼액과 물공급라인(23b)에서 공급되는 물이 혼합되어 혼합액공급라인 (25a)이 펌프(23)측으로 유입되도록 구성되어 있으며, 물/폼액공급라인(23a)은 혼합액공급라인(25a)으로 바이패스되도록 바이패스라인(23c)이 연결설치되어 있다. 바이패스라인(23c)에는 릴리프밸브(26)가 설치되어 있다.The chemical liquid mixing device 25 is installed on the foam liquid supply line 22a, and the chemical liquid mixing device 25 is connected to the water supply line 23b connected to the pump 23 so that the foam liquid supplied from the foam liquid supply line 22a is provided. And water supplied from the water supply line 23b is mixed so that the mixed liquid supply line 25a flows into the pump 23 side, and the water / foam liquid supply line 23a is bypassed to the mixed liquid supply line 25a. Bypass line 23c is connected and installed as much as possible. The relief valve 26 is provided in the bypass line 23c.

폼액공급라인(22a)에는 폼자동메인밸브(27)가 설치되어 있고, 물공급라인 (23b)에는 자동송수밸브(28)가 설치되어 있어 각 라인상의 유로를 개폐하도록 한다.A foam automatic main valve 27 is installed in the foam liquid supply line 22a, and an automatic water supply valve 28 is installed in the water supply line 23b to open and close the flow path on each line.

방수구(24)와 연결된 물/폼액공급라인(23a)에는 압력센서(29)가 설치되어 있으며, 압력센서(29)는 제어부(30)와 연결되어 있고, 제어부(30)는 폼자동메인밸브 (27) 및 자동송수밸브(28)와 연결되어 있다.The pressure sensor 29 is installed in the water / foam liquid supply line 23a connected to the waterproof port 24, the pressure sensor 29 is connected to the control unit 30, and the control unit 30 is a foam automatic main valve ( 27) and automatic water supply valve (28).

제어부(30)는 도 3에 도시한 바와 같이, 압력센서(29)에서 출력되는 전압이 입력되는 증폭회로(31)와, 증폭회로(31)에서 증폭된 신호를 카운팅하는 2진카운터 (32)와, 2진카운터(32)에서 카운팅된 신호에 의해 릴레이(41)(42)를 동작시켜 폼자동메인벨브(27)와 자동송수밸브(28)를 개폐시키는 전자계전기(33)로 구성되어 있다.As shown in FIG. 3, the controller 30 includes an amplifying circuit 31 to which a voltage output from the pressure sensor 29 is input, and a binary counter 32 counting a signal amplified by the amplifying circuit 31. And an electromagnetic relay 33 for opening and closing the form automatic main valve 27 and the automatic water supply valve 28 by operating the relays 41 and 42 according to the signal counted by the binary counter 32. .

방수구(24)측으로 유입되는 물/폼액공급라인(23a)에는 물/폼액공급라인(23a)의 압력을 조절할 수 있는 약액작동밸브(24a)가 설치되어 있고, 폼액공급라인(22a)에는 역지밸브인 체크밸브(22b)가 설치되어 있다. 약액작동밸브(24a)는 방수구(24) 또는 방수구(24)와 인접된 위치인 관창수가 조작하기에 편리한 위치에 설치하는 것이 바람직하다.The water / foam liquid supply line 23a flowing into the waterproof port 24 is provided with a chemical liquid operation valve 24a for adjusting the pressure of the water / foam liquid supply line 23a, and the check valve in the foam liquid supply line 22a. In check valve 22b is provided. The chemical liquid actuating valve 24a is preferably installed at a position convenient to operate the water port 24 or the water pipe 24 adjacent to the water port 24.

이와 같이 구성되는 본 발명은 물분사시에는 물탱크(21)의 물공급라인(21a)을 통해 공급되는 물을 펌프(23)에 의해 물/폼액공급라인(23a)을 거쳐 관창 또는 물분사건인 방수구(24)를 통해 분사된다. 이때, 물/폼액공급라인(23a)내의 압력은 최소 80bar에서 최대 120bar이다.The present invention constituted as described above is water-proofing port or water spray through the water / foam liquid supply line (23a) by the pump 23 to the water supplied through the water supply line (21a) of the water tank 21 during the water spray Sprayed through 24. At this time, the pressure in the water / foam liquid supply line (23a) is at least 80bar to a maximum of 120bar.

제어부(30)는 초기의 세트신호에 의해 2진카운터(32)가 세트되어 출력 +Q가 하이(High) 전압으로 발생하게 되는데, 이때는 전자계전기(33)가 구동되지 않아 스위치(41,42)가 개방되므로, 폼자동메인밸브(27)와 자동송수밸브(28)는 닫힌상태를유지하는 바, 폼액분사를 실시하기 위하여 방수구(24)에 구비된 약액작동밸브(24a)를 개방시키면 물/폼액공급라인(23a)의 물방출압력이 80bar 이하로 저하되어 압력센서(29)가 물/폼액공급라인(23a)의 낮은 압력을 검출하여 제어부(30)로 신호가 입력되면, 제어부(30)는 입력된 검출신호를 증폭기(31)로 증폭하여 2진카운터(32)의 입력단자에 인가하게 된다. 따라서 2진카운터(32)의 출력 +Q는 로우(Low)레벨의 전압을 출력하게 되며, 전자계전기(33)가 구동되어 스위치(41,42)가 접속되므로 폼자동메인밸브(27)와 자송송수밸브(28)에 전원이 인가되어 개방됨으로써 폼탱크(22)의 폼액이 공급됨과 동시에 물공급라인(23b)을 통해 물이 공급되어 약액공급장치(25)에서 혼합된 물과 폼액이 혼합액공급라인(25a)과 물/폼액공급라인(23a)을 거쳐서 방수구(24)로 배출되는 것이다.The controller 30 sets the binary counter 32 by the initial set signal so that the output + Q is generated as a high voltage. In this case, the electromagnetic relay 33 is not driven so that the switches 41 and 42 Is opened, the foam automatic main valve 27 and the automatic water supply valve 28 are kept in a closed state. When the chemical liquid operation valve 24a provided in the waterproof port 24 is opened to perform the foam liquid injection, the water / When the water discharge pressure of the foam liquid supply line 23a is lowered to 80 bar or less and the pressure sensor 29 detects a low pressure of the water / foam liquid supply line 23a and a signal is input to the controller 30, the controller 30 Amplifies the input detection signal by the amplifier 31 and applies it to the input terminal of the binary counter 32. Therefore, the output + Q of the binary counter 32 outputs a low level voltage. Since the electromagnetic relay 33 is driven and the switches 41 and 42 are connected, the form automatic main valve 27 When power is supplied to the water supply valve 28 to open, the foam liquid of the foam tank 22 is supplied and the water is supplied through the water supply line 23b to mix the water and the foam liquid mixed in the chemical liquid supply device 25. It is discharged to the waterproof port 24 through the supply line 25a and the water / foam liquid supply line 23a.

폼액 분사가 실시된 후 약액작동밸브(24a)를 닫아주어도 폼자동메인밸브(27)와 자동송수밸브(28)는 계속해서 개방된 상태를 유지하여 폼액에 의하여 소화작업을 수행하게 된다.Even if the chemical liquid operation valve 24a is closed after the foam liquid injection is performed, the foam automatic main valve 27 and the automatic water supply valve 28 continue to be opened to perform fire extinguishing by the foam liquid.

폼액 분사를 실시하다가 다시 물분사를 실시하고자 할 경우에는 약액작동밸브(24a)를 다시 개방시켜 물/폼액공급라인(23a)내의 압력을 저하시키면, 이러한 압력저하를 압력센서(29)에서 검출하여 제어부(30)로 입력시키게 되므로 제어부(30)의 2진카운터(32)의 출력 +Q는 다시 하이레벨 전압을 출력하게 되어 전자계전기 (33)는 구동되지 않고 스위치(41)(42)가 개방되므로 폼자동메인밸브(27)와 자동송수밸브(28)는 닫히게 되어 폼액은 더 이상 공급되지 않아 물방수만 실시되는 것이다.In the case where the foam liquid is sprayed and the water spray is to be performed again, the chemical liquid actuating valve 24a is opened again to lower the pressure in the water / foam liquid supply line 23a. The pressure drop is detected by the pressure sensor 29. Since it is input to the control unit 30, the output + Q of the binary counter 32 of the control unit 30 again outputs a high level voltage so that the electromagnetic relay 33 is not driven and the switches 41 and 42 are opened. Therefore, the form automatic main valve 27 and the automatic water supply valve 28 is closed so that the foam liquid is no longer supplied, so that only the waterproofing is performed.

이 상태에서 약액작동밸브(24a)를 닫아주면, 물/폼액공급라인(23a)의 압력이 상승되는데 압력센서(29)의 출력이 높아지더라도 제어부(30)의 증폭회로(31)는 출력이 로우(Low)에서 하이(High)상태가 되기 때문에 2진 카운터(32)의 출력 +Q는 하이(High)상태를 유지하게 되어 폼자동메인밸브(27)와 자동송수밸브(28)는 계속해서 닫힌 상태가 유지된다.In this state, when the chemical liquid operation valve 24a is closed, the pressure of the water / foam liquid supply line 23a is increased, but the output of the pressure sensor 29 is high, but the amplification circuit 31 of the controller 30 has a low output. Since the low state becomes high, the output + Q of the binary counter 32 remains high, and the form automatic main valve 27 and the automatic water supply valve 28 are continuously closed. The state is maintained.

이상에서 설명한 바와 같이, 본 발명에 의한 소방용 폼액 분사장치는 물/폼액공급라인의 내부 방수압력을 이용하여 물공급라인과 폼액공급라인의 유로를 개폐시킴으로써 유선 또는 무선에 의한 소방용 폼액 분사장치의 단점을 해소하면서 관창수가 직접 폼액 분사를 간편하게 조작할 수 있어 신속하고, 정확한 소화작업을 가능하게 하는 효과가 있다.As described above, the fire fighting foam liquid injector according to the present invention by using the internal waterproof pressure of the water / foam liquid supply line by opening and closing the flow path of the water supply line and the foam liquid supply line disadvantages of the fire fighting foam liquid spray apparatus by wire or wireless It is effective to enable quick and accurate fire extinguishing because it can easily manipulate the foam liquid directly while eliminating the problem.

Claims (2)

물이 수납된 물탱크(21)와, 폼액이 수납된 폼탱크(22)와, 물 또는 폼액의 혼합액을 펌핑하는 펌프(23)와, 상기 펌프(23)에 의해 공급된 물 또는 폼액의 혼합액을 분사하는 방수구(24)와, 물과 폼액을 혼합하는 약액혼합장치(25)를 구비하는 소방용 폼액 분사장치에 있어서,A water tank 21 in which water is stored, a foam tank 22 in which foam liquid is stored, a pump 23 for pumping a mixed liquid of water or foam liquid, and a mixed liquid of water or foam liquid supplied by the pump 23 In the fire fighting foam liquid injector having a waterproof port 24 for injecting a, and a chemical liquid mixing device 25 for mixing water and foam liquid, 상기 방수구(24)측으로 토출되는 물/폼액공급라인(23a)에 설치되어 라인 (23a)내의 압력을 낮추는 약액작동밸브(24a)와;A chemical liquid operation valve 24a installed in the water / foam liquid supply line 23a discharged toward the waterproof port 24 to lower the pressure in the line 23a; 상기 물/폼액공급라인(23a)의 압력차를 검출하는 압력센서(29)와;A pressure sensor 29 for detecting a pressure difference between the water / foam liquid supply line 23a; 상기 약액혼합장치(25)로 물을 공급하는 물공급라인(25a)의 유로를 개폐하는 자동송수밸브(28)와;An automatic water supply valve 28 for opening and closing a flow path of the water supply line 25a for supplying water to the chemical liquid mixing device 25; 상기 약액혼합장치(25)에 폼액을 공급하는 폼액공급라인(22a)의 유로를 개폐하는 폼자동메인밸브(27)와;A foam automatic main valve 27 for opening and closing a flow path of the foam liquid supply line 22a for supplying the foam liquid to the chemical liquid mixing device 25; 상기 압력센서(29)에 의해 검출된 신호에 의해 상기 자동송수밸브(28) 및 폼자동메인밸브(27)를 개방시켜 상기 약액혼합장치(25)에서 물과 폼액을 혼합시키는 제어부(30)를 포함하여 구성되는 소방용 폼액 분사장치.The control unit 30 for mixing the water and the foam liquid in the chemical liquid mixing device 25 by opening the automatic water supply valve 28 and the foam automatic main valve 27 by the signal detected by the pressure sensor 29 Fire fighting foam liquid injector configured. 제 1 항에 있어서,The method of claim 1, 상기 제어부(30)는 상기 압력센서(29)의 신호가 입력되는 증폭회로(31)와, 상기 증폭회로(31)에서 증폭된 신호를 카운팅하는 2진카운터(32)와, 상기 2진카운터(32)에서 카운팅된 신호에 의해 릴레이(41)(42)를 동작시켜 폼자동메인벨브(27)와 자동송수밸브(28)를 개폐시키는 전자계전기(33)로 구성된 것을 특징으로 하는 소방용 폼액 분사장치.The control unit 30 has an amplification circuit 31 to which the signal of the pressure sensor 29 is input, a binary counter 32 for counting the signal amplified by the amplification circuit 31, and the binary counter ( Fire foam liquid injection device, characterized in that consisting of an electromagnetic relay 33 for opening and closing the form automatic main valve 27 and the automatic water supply valve 28 by operating the relay (41) (42) by the signal counted in 32) .
KR10-2001-0064679A 2001-10-19 2001-10-19 foam injection apparatus for fire fighting KR100437074B1 (en)

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KR101178498B1 (en) * 2009-09-15 2012-09-07 한상섭 Fire extiguisher using wireless remot control
KR101803172B1 (en) * 2016-02-26 2017-12-28 장완표 Forest fire extinguish device

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KR100917277B1 (en) * 2009-01-08 2009-09-16 (주) 엔케이텍 Foam generator for a ship
KR101044053B1 (en) * 2009-03-16 2011-06-23 주식회사 에프원텍 Fire Engine Using Air-foam Discharge System
KR101584047B1 (en) * 2014-12-10 2016-01-11 장완표 Mixing and injecting apparatus for movable diluting fire control foam liquid

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KR101803172B1 (en) * 2016-02-26 2017-12-28 장완표 Forest fire extinguish device

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