KR101494267B1 - Nonelectric Gas and particles sampling system - Google Patents

Abstract

The present invention is characterized in that the second blowing fan is provided in the sample conveying pipe so as to be connected to the first blowing fan in the pipe or duct so that the power of the first blowing fan driven in accordance with the flow rate is transmitted to the second blowing fan, And an accelerator is provided between the first and second blowing fans to increase the decelerated flow rate in accordance with the pressure loss of the filter. In order to adjust the flow velocity in the duct and the flow rate in the sample conveying pipe, A shut-off valve, a filter, an accelerator, a first blowing fan, and a second blowing fan so as to have a regulating valve at the rear of the filter between the first blowing fan and the second blowing fan.

Description

[0001] The present invention relates to a non-electric gas and particles sampling system,

TECHNICAL FIELD The present invention relates to a nonvolatile gas and particle sampling device for analyzing radiation and environmental pollutants by providing gas flow rate pipes, ducts, and stacks including nuclear power plants and large industrial facilities.

In general, the analyzer for analyzing the harmful substances contained in the exhaust gas is composed of a sampling system in which a part of the exhaust gas is sampled from the chimney and transferred to an analyzer installed in the analysis room at a specific place, And installing and analyzing them. Among the above methods, the sampling type analyzer comprises an exhaust gas sampling device for sampling the sample from the chimney and an analyzer for analyzing the sample taken from the exhaust gas sample sampling device.

When the exhaust gas of high temperature is discharged to the outside through the sampling device, the particulate matter contained in the exhaust gas is primarily removed. In this process, water is condensed and condensed water is generated. These condensed water causes degradation of the performance of the vacuum pump during the sampling of the exhaust gas. To prevent this, it is necessary to filter the particulate matter other than the air pollutant to be sampled and maintain the performance of the vacuum pump by inducing the evaporation of water . At this time, the cylindrical box portion where the particulate matter is collected is heated by using the heating box, thereby inducing the evaporation of the condensed water, thereby effectively filtering the particulate matter and the like in the cylindrical chamber.

The present invention relates to a wet dust measurement system capable of controlling a flow rate, and is provided with a blowing device to supply air so that the internal flow rate of the measurement cell is constant, and a flow rate control device It is a technology to maintain the accurate measurement environment of dust density by adjusting the internal flow rate of the measuring cell to be equal to the inside of the chimney through the ejector at the downstream end of the flow control device while maintaining smooth supply of air flow rate. Therefore, it is judged to be similar to the technical elements 1 and 2 of the application technique that have a vane and an accelerator (acceleration device) to adjust the flow rate in the sample transfer tube and to provide a regulating valve between the filter bank and the vane. The prior art, however, is that the power of the first vane driven by the flow rate in the duct is transferred to the second vane in the sample vessel, thereby controlling the flow rate in the sample vessel. There is a difference,

Japanese Patent Laid-Open Publication No. 1-1995-280711 discloses a gas sampling apparatus for separating exhaust gas from a combustion apparatus into a gas flue and sending the exhaust gas to an analyzer. In the gas sampling apparatus for sampling the exhaust gas of the exhaust gas flue which communicates the upstream side and the downstream side of the exhaust fan, And a duct is provided with a filter and the gas flow is formed from the downstream side of the exhaust fan toward the upstream side in the sampling duct by the difference between the suction pressure and the exhaust pressure of the exhaust fan. Thus, the power of the first vane driven by the flow rate in the duct is partially transferred to the second vane in the sample vessel, thereby partially controlling the flow rate in the sample vessel. However, in the prior art, one exhaust fan is installed in the exhaust gas flue to form a gas flow in the duct by the difference between the suction pressure and the exhaust pressure of the exhaust fan, while the application technology is provided in each of the duct and the sample transfer line, There are differences in the flow rate of the sample in the pipeline through the vanes,

Open No. 2001-183267 relates to a device for sampling exhaust gas , which includes a duct provided in a flue of a combustion facility, a filter having substantially the same cross-sectional shape as the duct, a flow rate of exhaust gas flowing in the duct is reduced And a pump capable of sucking and discharging exhaust gas from the flue. Therefore, it is partially similar to the technical element 1 of the application technology for controlling the flow rate in the sample pipe by providing a vane in the duct. The prior art, however, is to maintain the flow rate in the duct by forcibly removing and transferring the dust residing in the filter through the pump to the duct, which differs from the flow rate control in the duct in accordance with the flow rate in the duct, ,

Disclosure of the Invention Disclosure of Invention Problems to be Solved by the Invention Disclosure of Invention Problems to be Solved by the Invention Disclosure of the Invention Problems to be Solved by the Invention Disclosure of the Invention Problems to be Solved by the Invention Disclosure of the Invention Problems to be Solved by the Invention [ Which is a technology capable of controlling Therefore, it is partially similar to the technical element 2 of the application technology, which has a regulating valve between the filter bank and the second vane counter to match the flow rate in the duct to the flow rate in the sample conveyor. However, while the prior patent maintains the suction speed of the sampling through the flow rate converter, the application technology is different in that the flow rate is controlled by the power of the vane driven by the flow rate in the duct,

In this Publication No. 2005-114508, a gas to be measured which is branched from a gas to be measured process piping and equipped with a liquid / solid fraction removing filter is sucked to the gas concentration measuring device in the gas to be measured process pipe A gas concentration measuring method for measuring a gas concentration, comprising the steps of bringing a substance to be a disturbance in measurement of a gas concentration attached to a gas to be measured, Washing and removing,

Korean Patent Laid-Open Publication No. 10-2006-0022919 discloses a composite probe comprising a casting mold having a casting mold for casting molten metal and a casting mold which is in communication with the inside of the casting mold through the casting mold and into which the cast molten steel sample is solidified It is understood that a sample collection port for a composite probe is disclosed in which a filter is inserted and formed in the sample mold.

1. Korean Patent Registration No. 10-0823947 2. Japanese Laid-Open Patent Publication No. 1995-280711 3. Japanese Laid-Open Patent Publication No. 2001-183267 4. Japanese Laid-Open Patent Publication No. 1999-344570 5. Japanese Laid-Open Patent Publication No. 2005-114508

The present invention relates to a gas and particle sampling system installed and operated in a gas flow pipe, a duct, and a stack including a nuclear power plant and a large industrial facility, and is provided with an ANSI / ANSI N13. 1-1969 (Iso-kinetic Sampling), ANSI / ANS N13.1-1999 (Shroud Nozzle) and ISO 2889 to improve the problem of field application for the method of ensuring representative sampling. , It is a reality that it is not easy to secure space because of the influence of radiation contaminated piping and existing facilities in order to install the same monitor and sampler in the radiation management area. It is a further object of the present invention to solve the problem that the air motor installed in the system causes noise to deteriorate the working environment in the work space.

In order to solve the above problems, the present invention is characterized in that a second blowing fan is provided in the sample conveying pipe so as to be connected to the first blowing fan in the pipe or duct, and the power of the first blowing fan, It is possible to adjust the flow velocity in the sample conveying pipe to the flow velocity in the duct and to provide an accelerator between the first and second blowing fans to increase the decelerated flow velocity in accordance with the pressure loss of the filter, A shutoff valve, a filter, an accelerator, a first blowing fan, and a second blowing fan so as to provide a regulating valve at the rear of the filter between the filter and the second blowing fan to match the flow rate in the sample conveying pipe. It is an object of the present invention to provide a gas sampling device.

The present invention can be used for the monitoring of materials discharged throughout the nuclear power plants and industrial facilities generating gaseous and particulate effluents. Particularly, it is easy to install because of the non-power source installation, and the power source is installed in ducts and flow pipes Because it is obtained from flow flow, there is no need for additional air motor and equipment fixing device. It does not require extra space on the floor or wall for installation, so it can be installed anywhere if proper installation position is secured. And if necessary, it is advantageous to measure the flow rate of the sample conveying pipe periodically and adjust the orbit of the control valve to ensure the representative and effectiveness of sampling.

In addition, if continuous monitoring of the radioactive effluent is required, it can be operated by attaching a radiation monitor.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Fig. 2 Detail view of the accelerating device of the present invention
Fig. 3 Details of the filter bank of the present invention

The present invention is characterized in that the second blowing fan is provided in the sample conveying pipe so as to be connected to the first blowing fan in the pipe or duct so that the power of the first blowing fan driven according to the flow rate is transmitted to the second blowing fan, And an accelerator is provided between the first and second blowing fans to increase the decelerated flow rate in accordance with the pressure loss of the filter. In order to adjust the flow velocity in the duct and the flow rate in the sample conveying pipe, A shut-off valve, a filter, an accelerator, a first blowing fan, and a second blowing fan so as to have a regulating valve at the rear of the filter between the first blowing fan and the second blowing fan.

The sampling pipe is installed in the duct or flow pipe and serves to send gas and particle samples to the filter bank or marinelli beaker. The shape of the sampling pipe can be configured as a spiral form according to the ANSI N13.1-1969 code requirements and a shroud type according to the ANSI / ANS N13.1-1999 code requirements, .

The sample collecting pipe (1) of the present invention is installed in a duct or a flow pipe to send a gas and a particle sample to a filter bank or a Marinelli beaker,

The shut-off valve (2) is installed at the front of the filter in order to block the flow of gas and particulate-contaminated air when the filter is replaced, and may be bypassed by a bypass pipe if necessary.

The filter 3 is a filter bank which is selected from a particle filter harvesting filter and an iodine trapping activated carbon filter. The inert gas collecting marinelli beaker bank or marinelli beaker can collect samples according to the type of sample to be collected. Gas and particle samples for a certain period of time. If necessary, it can be used as a moving filter or cartridge type. If necessary, a radiation monitor can be installed in the vicinity to perform continuous monitoring of the effluent.

The control valve (4) serves as a flow regulator that is installed to equalize the flow rate of the sample pipeline when the flow rate of the sample pipeline is higher than the flow rate of the duct and the flow pipeline,

When the flow rate of the sample transfer pipe is lower than the flow rate of the duct and the flow pipe, an acceleration device is installed to adjust the flow rate of the sample transfer pipe to be the same,

The accelerator 6 is located on the rear surface of the first blowing fan 5 and has three gears,

The first blowing fan 5 is connected to the shaft of the first ring gear having the largest diameter, the second ring gear having the largest diameter is connected at right angles, and the ring gear having the smallest diameter is connected to the rear face of the second ring gear And the second blowing fan 7 is connected to the axis of the ring gear having the smallest diameter,

The rotation speed of the second blowing fan 7 attached to the shaft of the ring gear having the smallest diameter is increased by the rotation of the first blowing fan 5 connected to the shaft of the first ring gear having the largest diameter And accelerating it.

The first blowing fan 5 serves as a first power source for providing the flow rate of the sample transfer pipe and transmits the power source to the second blowing fan 7 installed in the sample transfer pipe. The second blowing fan 7 ) Serves as a power source inside the sample transfer pipe for matching the flow rate of the sample transfer pipe with the flow rate of the duct and the flow pipe.

Hereinafter, the present invention will be described in detail with reference to the drawings.

2 is a detailed view of an acceleration device of the present invention and FIG. 3 is a detailed view of a filter bank of the present invention, and shows a sample collecting pipe 1, a shutoff valve 2 The filter 3, the filter bank 3-1, the marinelli beaker bank 3-2, the marinelli beaker 3-3, the control valve 4, the first blowing fan 5, The first blower fan 6, the second blower fan 7, and the radiation monitor 10 are shown.

" 형상으로 굴곡진 파이프 형상의 시료채취관(1)과, 상기 시료채취관(1)의 중앙상부는 덕트내에 위치되고 시료채취관(1)의 하부는 덕트외측 하부로 설치되게 하고, 상기 "

" 형상의 시료채취관(1) 의 후면 상부 코너부분이 개방된 상태로 구성되며,As shown in Figs. 1 to 3 of the present invention,

Shaped sampling pipe 1 and a central upper portion of the sample sampling pipe 1 are located in the duct and a lower portion of the sample sampling pipe 1 is installed in the lower outer side of the duct,

Quot; shape of the sample collecting pipe 1 is formed in an opened state at the rear upper corner portion,

" 형상의 시료채취관(1)의 하부전면이며 덕트하측 외부에 설치된 차단밸브(2)와, 상기 차단밸브(2)의 후면에 설치된 필터(3)와, 상기 필터(3)의 하부에 설치된 방사선감시기(10)와, 상기 필터(3)의 후면에 설치된 조절 밸브(4)와, 상기 조절밸브(4) 후면에 상부에 설치되며 덕트 내부로 연결된 "

"형상의 시료채취관(1) 의 후면 상부 코너부분의 개방된 부분에 설치된 제1송풍팬(5)와, 상기 제1송풍팬(5)의 후면에 연결 설치된 가속장치(6)와, 상기 가속장치(6)의 다른 일측 후면에 연결 설치된 제2송풍팬(7)으로 구성된 무전원 기체 시료 채취장치의 구조인 것이다.
remind "

A filter 3 installed on the rear surface of the shut-off valve 2 and a filter 3 disposed under the filter 3. The shut-off valve 2 is provided on the lower front surface of the sample- A radiation monitor 10, a regulating valve 4 installed on the rear surface of the filter 3, a regulating valve 4 installed on the rear side of the regulating valve 4 and connected to the inside of the duct,

A first blowing fan 5 installed at an open portion of a rear upper corner portion of the sample sampling pipe 1 having a shape of a rectangular shape and an acceleration device 6 connected to the rear surface of the first blowing fan 5, And a second blower fan (7) connected to the other rear side of the accelerator (6).

If the gas flows from left to right in the duct,

" 형상의 시료채취관(1)의 후면 상부 코너부분의 개방된 부분에 설치된 제1송풍팬(5)의 회전에 의해 상기 제1송풍팬(5)의 후면에 연결 설치된 가속장치(6)에 의해 상기 가속장치(6)의 다른 일측 후면에 연결 설치된 제2송풍팬(7)이 가속되어 시료채취관(1) 내부로 흐르는 기체의 유속을 덕트 내 유속에 맞추어 조절(Isokinetic Sampling 조건 확보)하고,The "

(6) connected to the rear surface of the first blowing fan (5) by the rotation of the first blowing fan (5) provided at the open portion of the rear upper corner portion of the " The second blowing fan 7 connected to the other rear side of the accelerator 6 is accelerated to adjust the flow rate of the gas flowing into the sample sampling pipe 1 according to the flow rate in the duct (securing the isokinetic sampling condition) ,

If the flow rate of the sampling pipe is high, the adjustment valve is adjusted to the rear of the filter to keep the flow velocity at the same level,

Located within the duct

" 형상으로 굴곡진 파이프 형상의 시료채취관(1) 입구에 기체 일부가 유입되면, 상기 "

" 형상의 시료채취관(1)의 하부전면이며 덕트하측 외부에 설치된 차단밸브(2)를 통과하여 필터(3)에 도착하고,"

When a part of the gas flows into the inlet of the sampling pipe 1 having the shape of a pipe bent in a shape,

Shaped sample collecting pipe 1 and a shut-off valve 2 provided outside the duct and reaching the filter 3,

At this time, in the filter 3, the filter 3 is exchanged with a filter bank which is selected from a particle-collecting HEPA filter and an iodine-capturing activated carbon filter and an inert gas collecting Marinelli beaker bank or Marinelli beaker

A gas or particle sample which can be collected by the type of the sample to be collected is collected for a predetermined period,

(At the time of replacement, the shutoff valve 2 is closed, the operation is performed,

Again opening the shut-off valve 2)

Through the regulating valve (4) provided on the rear surface of the filter (3) and discharged to the doctor discharge port.

At this time, the presence or absence of radioactivity is checked by the radiation monitor 10 provided under the filter 3,

" 형상의 시료채취관 후면 상부 코너부분의 개방된 부분에 설치된 제1송풍팬(5)의 회전에 의해 상기 제1송풍팬(5)의 후면에 연결 설치된 가속장치(6)에 의해 상기 가속장치(6)의 다른 일측 후면에 연결 설치된 제2송풍팬(7)이 가속되어 시료채취관(1) 내부로 흐르는 기체의 유속을 높이고, 너무 높으면 후면에 설치된 조절밸브(4)로 기체 유입속도를 조절하면서 배출시키는 방법인 것이다.
The inflow rate is the "

(6) connected to the rear surface of the first blowing fan (5) by the rotation of the first blowing fan (5) installed on the open portion of the upper corner portion of the rear surface of the sample collecting pipe The second blowing fan 7 connected to the other rear side of the sample collecting pipe 6 is accelerated to increase the flow velocity of the gas flowing into the sample collecting pipe 1 and if it is too high, And is discharged while being adjusted.

The sample collection tube 1, the shutoff valve 2, the filter 3, the filter bank 3-1, the Marinelli beaker bank 3-2, the Marinelli beaker 3-3, the control valve 4, A first blowing fan 5, an accelerator 6, a second blowing fan 7, a radiation monitor 10,

Claims (2)

A non-powered gas sampling device comprising:
"

Shaped sampling pipe 1 and a central upper portion of the sample sampling pipe 1 are located in the duct and a lower portion of the sample sampling pipe 1 is installed in the lower outer side of the duct,

Quot; shape of the sample collecting pipe 1 is formed in an opened state at the rear upper corner portion,
remind "

A filter 3 installed on the rear surface of the shut-off valve 2 and a filter 3 disposed under the filter 3. The shut-off valve 2 is provided on the lower front surface of the sample- A radiation monitor 10, a regulating valve 4 installed on the rear surface of the filter 3, a regulating valve 4 installed on the rear side of the regulating valve 4 and connected to the inside of the duct,

A first blowing fan 5 installed at an open portion of a rear upper corner portion of the sample sampling pipe 1 having a shape of a rectangular shape and an acceleration device 6 connected to the rear surface of the first blowing fan 5, And a second blowing fan (7) connected to the other rear side of the accelerating device (6).

The accelerator according to claim 1, wherein the accelerator is located on the rear surface of the first blower fan (5) and is provided with three gears, and the first blower fan (5) is connected to the axis of the first ring gear , The second large geargear is connected at right angles to the rear of the second geargear and the smallest diameter geargear is connected to the second geargear, and the second blower fan (7) is connected to the shaft of the smallest geargear Wherein the gas-liquid separator comprises a plurality of gas-liquid separators.

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