CN212298101U - VOCs leakage monitoring system - Google Patents
VOCs leakage monitoring system Download PDFInfo
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- CN212298101U CN212298101U CN202020801889.4U CN202020801889U CN212298101U CN 212298101 U CN212298101 U CN 212298101U CN 202020801889 U CN202020801889 U CN 202020801889U CN 212298101 U CN212298101 U CN 212298101U
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Abstract
A VOCs leakage monitoring system comprises a sealing shell, wherein the sealing shell is of a hollow cylindrical structure consisting of two hollow semicylinders, through holes for a first pipeline and a second pipeline to pass through are formed in the end faces of the two ends of the sealing shell, and a first sealing element is arranged in the through holes; the sealing shell is arranged at the joint of the first pipeline and the second pipeline, and a connecting flange at the joint of the first pipeline and the second pipeline is covered in the sealing shell; be equipped with VOCs monitoring devices on the second pipeline of sealed casing one side, wear to be equipped with monitor on the sealed casing lateral wall, monitor passes through the data line and is connected with VOCs monitoring devices. Adopt above-mentioned structure, form sealed area through the pipeline junction that will easily take place to leak, carry out the monitoring of VOCs leakage concentration in sealed area to upload accurate monitoring data to data platform, ensure the accuracy of summary data, also can be convenient simultaneously overhaul pipeline junction.
Description
Technical Field
The utility model relates to a gas sensing monitoring field, specific is a VOCs leakage monitoring system.
Background
Volatile Organic Compounds (VOCs) are important precursors for ozone, photochemical smog and dust-haze pollution, and some of the VOCs are toxic and carcinogenic and can harm human health. The petrochemical industry is the main discharge industry of VOCs (volatile organic compounds) of industrial sources in China, and the discharge amount is large and mainly unorganized discharge.
The traditional detection method of the LDAR technology adopts hand-held equipment to manually check, monitors leakage parts which are easy to generate volatile organic compounds, such as various reaction kettles, raw material conveying pipelines, pumps, compressors, valves, flanges and the like of chemical enterprises, and repairs the leakage detection parts with a certain concentration, thereby controlling the pollution of raw material leakage to the environment. Although manual troubleshooting can achieve the goal of periodically controlling the leakage of VOCs, the following problems still exist: (1) the detection period is long, and the real-time performance is poor: the detection period is generally specified to be once in 3 months, if leakage occurs in the detection period, leakage sites, concentration and leakage time cannot be obtained in time, and potential safety and environmental protection hazards exist; (2) not suitable for unreachable points: the manual checking mode is not suitable for high-frequency conventional monitoring of VOCs leakage of unreachable points and hazard points; (3) waste time and labor: a large amount of manpower and material resources are consumed by using a manual checking mode, and a large amount of time is needed for one-time complete checking, so that the workload of detection personnel is increased; (4) potential safety hazards of detection personnel: the detection of the unreachable point has hidden danger to the safety of detection personnel, and partial dangerous VOCs gas leakage threatens the health of the detection personnel.
The existing Chinese patent, "a VOCs leaks miniature monitor and on-line monitoring system" (No. CN 210319430U) discloses a monitoring device for VOCs leakage, but its sensor part is exposed in the air, when the leakage occurs, the concentration monitored by it will have certain error, resulting in the inaccurate data uploaded to the database, and there may also be the problem that the included angle between the leakage point and the sensor probe is too large, which can not achieve the purpose of monitoring and alarming.
Disclosure of Invention
The utility model aims to solve the technical problem that a VOCs leakage monitoring system is provided, through the pipe connection department formation seal area that will easily take place to leak, carry out the monitoring of VOCs leakage concentration in seal area to reach data platform with accurate monitoring data, guarantee summary data's accuracy, also can be convenient simultaneously overhauls pipe connection department.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a VOCs leakage monitoring system comprises a sealing shell, wherein the sealing shell is of a hollow cylindrical structure consisting of two hollow semicylinders, through holes for a first pipeline and a second pipeline to pass through are formed in the end faces of the two ends of the sealing shell, and a first sealing element is arranged in the through holes;
the sealing shell is arranged at the joint of the first pipeline and the second pipeline, and a connecting flange at the joint of the first pipeline and the second pipeline is covered in the sealing shell;
the second pipeline of sealed casing one side on be equipped with VOCs monitoring devices, wear to be equipped with monitor on the sealed casing lateral wall, monitor passes through the data line and is connected with VOCs monitoring devices.
In the preferred scheme, one side of two hollow semicylinders forming the sealing shell is hinged through a hinge, an ear plate is arranged on the other side of the two hollow semicylinders, and the ear plate is provided with a bolt and a nut to realize the closing and fixing of the sealing shell.
In the preferred scheme, sealed casing lateral wall both ends on be equipped with the external screw thread, sealed casing both ends cover is equipped with the sleeve, be equipped with on the sleeve inside wall with external screw thread assorted internal thread.
In a preferable scheme, the end face of the sleeve is also provided with a hole for the first pipeline and the second pipeline to pass through, and the aperture of the hole on the end face of the sleeve is smaller than that of the through hole and larger than the outer diameter of the connecting flange.
In the preferred scheme, first sealing member be foraminiferous round platform form seal structure in middle part, the middle part aperture of first sealing member is the same with the external diameter of first pipeline, second pipeline, the less one end of first sealing member diameter sets up towards sealed casing is inside, and the diameter of the less one end of first sealing member diameter is less than the aperture of through-hole, the diameter of the great one end of first sealing member diameter is greater than the aperture of hole and through-hole on the sleeve terminal surface.
In a preferred scheme, a second sealing element is arranged at the position of the sealing shell through which the monitoring probe passes.
In a preferred scheme, a cover plate is arranged on the side wall of the sealed shell, and the width of the cover plate is larger than the minimum distance between the two sleeves in the sealed state of the sealed shell.
In a preferred scheme, a processing and caching module, a main controller module, a radio frequency transceiver module, a power supply control module, a memory and an antenna partially extending out of the main body are arranged in the VOCs monitoring device;
in a preferred scheme, the monitoring probe is a plurality of environment information sensors, including a gas sensor, a temperature sensor, a humidity sensor, a vibration sensor, a pressure sensor or a flow sensor, and the gas sensor includes a semiconductor type gas sensor, an electrochemical gas sensor, a catalytic combustion type gas sensor or a conductive polymer type gas sensor.
In the preferred scheme, the VOCs monitoring devices are wirelessly connected to part of the gateway and the cloud data platform, the VOCs monitoring devices are controlled by the cloud data platform, and the gateway and the cloud data platform are also wirelessly connected.
The utility model provides a VOCs leakage monitoring device through adopting above-mentioned structure, has following beneficial effect:
(1) by uploading the monitoring data to the cloud data monitoring platform through the gateway, the data can be summarized and recorded, and subsequent data statistics and calculation are facilitated;
(2) the monitoring device is partially arranged in a sealed environment, so that the precision of monitoring data can be improved, and the accuracy of uploaded data is ensured;
(3) when the leakage is monitored, the leakage of VOCs can be avoided within a certain time;
(4) the leakage position can be overhauled without dismantling the whole device;
(5) the system can realize systematic management of the monitoring data by matching with the existing LDAR comprehensive management platform, improves the data processing efficiency, and also realizes the purposes of timely transmission and long storage time limit of the monitoring data.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the pipeline comprises a first pipeline 1, a second pipeline 2, a connecting flange 3, a sealing shell 4, an ear plate 401, a through hole 402, a sleeve 5, an external thread 6, an internal thread 6 ', a first sealing element 7, a second sealing element 7', a VOCs monitoring device 8, a monitoring probe 9 and a cover plate 10.
Detailed Description
As shown in fig. 1, a VOCs leakage monitoring system includes a sealing housing 4, where the sealing housing 4 is a hollow cylindrical structure composed of two hollow semicylinders, through holes 402 for passing a first pipeline 1 and a second pipeline 2 are provided on end faces of two ends of the sealing housing 4, and a first sealing member 7 is provided in the through holes 402;
the sealing shell 4 is arranged at the joint of the first pipeline 1 and the second pipeline 2, and the connecting flange 3 at the joint of the first pipeline 1 and the second pipeline 2 is covered in the sealing shell 4;
In the preferred scheme, one side of two hollow semicylinders forming the sealing shell 4 is hinged through a hinge, the other side of the two hollow semicylinders is provided with an ear plate 401, and the ear plate 401 is provided with bolts and nuts to realize the closing and fixing of the sealing shell 4.
In the preferred scheme, external threads 6 are arranged at two ends of the side wall of the sealing shell 4, sleeves 5 are sleeved at two ends of the sealing shell 4, and internal threads 6' matched with the external threads 6 are arranged on the inner side wall of each sleeve 5.
In a preferable scheme, the end face of the sleeve 5 is also provided with a hole for the first pipeline 1 and the second pipeline 2 to pass through, and the aperture of the hole on the end face of the sleeve 5 is smaller than that of the through hole 402 and larger than the outer diameter of the connecting flange 3.
In the preferred scheme, the first sealing element 7 is a truncated cone-shaped sealing structure with a hole in the middle, the middle aperture of the first sealing element 7 is the same as the outer diameters of the first pipeline 1 and the second pipeline 2, the end with the smaller diameter of the first sealing element 7 is arranged towards the inside of the sealing shell 4, the diameter of the end with the smaller diameter of the first sealing element 7 is smaller than the aperture of the through hole 402, and the diameter of the end with the larger diameter of the first sealing element 7 is larger than the apertures of the hole in the end face of the sleeve 5 and the through hole 402.
In a preferred scheme, a second sealing piece 7' is arranged at the position of the sealing shell 4 through which the monitoring probe 9 passes.
In a preferable scheme, a cover plate 10 is arranged on the side wall of the sealing shell 4, and the width of the cover plate 10 is larger than the minimum distance between the two sleeves 5 in the sealing state of the sealing shell 4.
In a preferred scheme, a processing and caching module, a main controller module, a radio frequency transceiver module, a power supply control module, a memory and an antenna partially extending out of the main body are arranged in the VOCs monitoring device 8;
in a preferred scheme, the monitoring probe is a plurality of environment information sensors, including a gas sensor, a temperature sensor, a humidity sensor, a vibration sensor, a pressure sensor or a flow sensor, and the gas sensor includes a semiconductor type gas sensor, an electrochemical gas sensor, a catalytic combustion type gas sensor or a conductive polymer type gas sensor.
In the preferred scheme, the VOCs monitoring device 8 is wirelessly connected to part of the gateway and the cloud data platform, the VOCs monitoring device 8 is controlled by the cloud data platform, and the gateway and the cloud data platform are also wirelessly connected.
The installation process of the device is as follows:
two sleeves 5 are sleeved on the first pipeline 1 and the second pipeline 2 in advance before the first pipeline 1 and the second pipeline 2 are installed;
arranging a sealing shell 4 at the joint of the first pipeline 1 and the second pipeline 2, covering the connecting flange 3 by the sealing shell 4, and installing bolts and nuts on the lug plate 401 and screwing the bolts and nuts after arrangement;
a first seal 7 is provided in the position of the end face hole of the seal housing where the pipe passes through and is manually pressed;
the sleeve 5 is rotated to form connection between the external thread 6 and the internal thread 6', the first sealing element 7 is pressed by the sleeve 5 until the sleeve 5 cannot be rotated continuously, the cover plate on the sealing shell 4 is pressed and covered by the sleeve 5, and the sealing performance of the inner area of the sealing shell 4 is ensured.
After the installation operation is completed, monitoring the concentration of VOCs in the sealing area in real time by means of a monitoring probe;
monitored data are uploaded to a cloud data platform through a gateway to be gathered, and when the concentration of VOCs monitored in a certain device exceeds a standard value, alarming is achieved, and a maintainer is reminded to overhaul the corresponding position.
During maintenance, the sleeve 5 is rotated by a small amplitude, so that the sleeve 5 does not limit the cover plate 10 any more, and maintenance operation can be carried out by taking down the cover plate 10.
The data integration processing process of the system is as follows:
the whole system comprises a monitoring part and a data transmission part, wherein the monitoring part uploads VOCs leakage concentration data to a VOCs leakage online monitoring platform at the cloud end through a gateway, and the platform logs in through mobile electronic equipment to observe the leakage concentration of each point location in real time;
on the other hand, the monitored data is matched with an LDAR comprehensive management platform to input basic data of the leakage point and form systematic management at the later stage;
on an LDAR comprehensive management platform, data are gradually input from top to bottom through a pyramid, and finally each VOCs leakage sealing point is uniquely coded, so that errors generated during operation of personnel are greatly reduced;
in addition, the field detection data can be recorded on the platform in real time through the mobile phone end operation port, seamless connection between the detection data and the LDAR comprehensive management platform is realized, monitoring records and detection tracks of a detector are marked, and the detection efficiency is greatly improved;
the adopted LDAR comprehensive management platform is based on a multi-authority management mode, and can adapt to different requirements of various users such as an environmental protection bureau, an enterprise, a garden and the like through simple adjustment.
Claims (7)
1. A VOCs leakage monitoring system, characterized by: the pipeline sealing device comprises a sealing shell (4), wherein the sealing shell (4) is of a hollow cylindrical structure consisting of two hollow semicylinders, through holes (402) for the first pipeline (1) and the second pipeline (2) to pass through are formed in the end faces of the two ends of the sealing shell (4), and first sealing elements (7) are arranged in the through holes (402);
the sealing shell (4) is arranged at the joint of the first pipeline (1) and the second pipeline (2), and a connecting flange (3) at the joint of the first pipeline (1) and the second pipeline (2) is covered in the sealing shell (4);
the second pipeline (2) of sealed casing (4) one side on be equipped with VOCs monitoring devices (8), wear to be equipped with monitor (9) on sealed casing (4) lateral wall, monitor (9) are connected with VOCs monitoring devices (8) through the data line.
2. A VOCs leak monitoring system according to claim 1, wherein: constitute two cavity semicylinders one side of sealed casing (4) articulated through the hinge, be equipped with otic placode (401) on the opposite side, configuration bolt and nut realizes sealed casing (4) closed fixed on otic placode (401).
3. A VOCs leak monitoring system according to claim 1, wherein: sealed casing (4) lateral wall both ends on be equipped with external screw thread (6), sealed casing (4) both ends cover is equipped with sleeve (5), be equipped with on sleeve (5) inside wall with external screw thread (6) assorted internal thread (6').
4. A VOCs leak monitoring system according to claim 3, wherein: the end face of the sleeve (5) is also provided with holes for the first pipeline (1) and the second pipeline (2) to penetrate through, and the aperture of the hole in the end face of the sleeve (5) is smaller than that of the through hole (402) and larger than the outer diameter of the connecting flange (3).
5. A VOCs leak monitoring system according to claim 4, wherein: first sealing member (7) be foraminiferous round platform form seal structure in middle part, the middle part aperture of first sealing member (7) is the same with the external diameter of first pipeline (1), second pipeline (2), the less one end of first sealing member (7) diameter is towards the inside setting of sealed casing (4), and the diameter of the less one end of first sealing member (7) diameter is less than the aperture of through-hole (402), the diameter of the greater one end of first sealing member (7) diameter is greater than the aperture of sleeve (5) terminal surface upper hole and through-hole (402).
6. A VOCs leak monitoring system according to claim 1, wherein: and a second sealing element (7') is arranged at the position of the sealing shell (4) through which the monitoring probe (9) passes.
7. A VOCs leak monitoring system according to claim 3, wherein: the side wall of the sealing shell (4) is provided with a cover plate (10), and the width of the cover plate (10) is larger than the minimum distance between the two sleeves (5) in the sealing state of the sealing shell (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020801889.4U CN212298101U (en) | 2020-05-14 | 2020-05-14 | VOCs leakage monitoring system |
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| CN202020801889.4U CN212298101U (en) | 2020-05-14 | 2020-05-14 | VOCs leakage monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280270A (en) * | 2021-05-18 | 2021-08-20 | 永高股份有限公司 | Pipeline leakage monitoring equipment based on Beidou satellite |
| CN113866346A (en) * | 2021-07-20 | 2021-12-31 | 海洋石油工程股份有限公司 | Monitoring devices is revealed to umbilical cable upper portion methyl alcohol |
| CN115388336A (en) * | 2022-09-19 | 2022-11-25 | 淄博联怡染整有限公司 | A safety device for VOCs administers technique |
| CN116242545A (en) * | 2023-05-10 | 2023-06-09 | 山东宏旭化学股份有限公司 | Safety detection device of hydrocyanic acid oxidation reactor and application method thereof |
-
2020
- 2020-05-14 CN CN202020801889.4U patent/CN212298101U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280270A (en) * | 2021-05-18 | 2021-08-20 | 永高股份有限公司 | Pipeline leakage monitoring equipment based on Beidou satellite |
| CN113866346A (en) * | 2021-07-20 | 2021-12-31 | 海洋石油工程股份有限公司 | Monitoring devices is revealed to umbilical cable upper portion methyl alcohol |
| CN115388336A (en) * | 2022-09-19 | 2022-11-25 | 淄博联怡染整有限公司 | A safety device for VOCs administers technique |
| CN116242545A (en) * | 2023-05-10 | 2023-06-09 | 山东宏旭化学股份有限公司 | Safety detection device of hydrocyanic acid oxidation reactor and application method thereof |
| CN116242545B (en) * | 2023-05-10 | 2023-07-14 | 山东宏旭化学股份有限公司 | Safety detection device of hydrocyanic acid oxidation reactor and application method thereof |
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