CN110164100B - Electronic alarm device - Google Patents
Electronic alarm device Download PDFInfo
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- CN110164100B CN110164100B CN201910556749.7A CN201910556749A CN110164100B CN 110164100 B CN110164100 B CN 110164100B CN 201910556749 A CN201910556749 A CN 201910556749A CN 110164100 B CN110164100 B CN 110164100B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1436—Covers for manholes or the like; Frames for covers with overflow or explosion control means, e.g. check or relief valves
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1481—Security devices, e.g. indicating unauthorised opening
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
The invention relates to the technical field of electronic monitoring, and particularly discloses an electronic alarm device, which comprises a well cover provided with a through hole, and further comprises: the detection module is used for detecting the concentration of inflammable gas in the pipeline; the communication module is used for sending an alarm signal; the execution module is used for opening or closing the through hole; the processing module is used for receiving the combustible gas concentration information of the detection module and judging the combustible gas concentration; if the concentration of the flammable gas is greater than the threshold value A, the processing module controls the communication module to send an alarm signal; if the concentration of the inflammable gas is greater than the threshold value B, the processing module sends a signal for closing the through hole to the control execution module; wherein the threshold value a is smaller than the threshold value B. By adopting the technical scheme of the invention, the problem that the pipeline explosion cannot be prevented in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of electronic monitoring, in particular to an electronic alarm device.
Background
The well lid is used for covering the deep road well and preventing people or objects from falling. The material can be divided into a metal well cover, a high-strength fiber cement concrete well cover, a resin well cover and the like. The well lid is generally circular.
Biogas generated by sewage in a sewage pipeline or a sewage well is mixed with oxygen in a pipe or a well to reach a certain proportion, and severe explosion can occur when open fire occurs. The rainwater hole and the cover lifting hole of the old well cover are directly communicated with a pipeline or a sewage well, and the fire-crackers played by naked fire cigarette ends and children are easy to fall into the sewage pipeline or the sewage well to cause explosion. In China, people are injured due to the fact that children throw firecrackers into pipelines or sewage wells through well covers every year, the pipeline is extremely powerful in explosion, and even tens of kilograms of well covers can fly to tens of meters.
For this reason, an electronic alarm device for preventing explosion is required.
Disclosure of Invention
The invention aims to provide an electronic alarm device to solve the problem that the pipeline cannot be prevented from exploding in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides an electronic alarm device, is including the well lid of seting up the through-hole, still includes:
the detection module is used for detecting the concentration of inflammable gas in the pipeline;
the communication module is used for sending an alarm signal;
the execution module is used for opening or closing the through hole;
the processing module is used for receiving the combustible gas concentration information of the detection module and judging the combustible gas concentration; if the concentration of the flammable gas is greater than the threshold value A, the processing module controls the communication module to send an alarm signal; if the concentration of the inflammable gas is greater than the threshold value B, the processing module sends a signal for closing the through hole to the control execution module; wherein the threshold value a is smaller than the threshold value B.
The basic scheme principle and the beneficial effects are as follows:
1. when the processing module judges the concentration of the inflammable gas in the pipeline, if the concentration of the inflammable gas is greater than a threshold value A, the processing module controls the communication module to send an alarm signal; the staff can be informed in time to carry out treatment, so that the occurrence of danger is avoided.
2. Because the space in the pipeline is limited, the condition is provided for gathering the inflammable gas, and the through hole is formed in the well cover, so that the inflammable gas can be discharged at ordinary times. When inflammable gas concentration is greater than threshold value B, danger becomes high, closes the through-hole, can avoid naked light cigarette end and the firecrackers that children played etc. to fall into the pipeline through the through-hole in, avoid the emergence of explosion, factor of safety is high.
Furthermore, the processing module is also internally provided with specific date information and is also used for judging whether the current date belongs to the specific date or not, and if so, the value of the threshold B is reduced.
For example, the specific date includes spring festival, which is a period of high occurrence that the firecrackers fall into the pipeline through the through holes, and the value of the threshold value B is reduced at the moment, so that the through holes can be closed when the concentration of inflammable gas is relatively low, and the occurrence of danger is avoided.
Further, when the concentration of the flammable gas is greater than the threshold value B, the processing module further judges the current time, and if the current time is less than 1 point or greater than 5 points, the processing module sends a signal for closing the through hole to the control execution module.
People who go out to move are few in the morning, accidents that naked flames, cigarette ends, firecrackers and the like fall into the pipeline are not easy to happen, the through holes are not closed at the moment, flammable gas is discharged, and the gathering of the flammable gas is reduced.
Further, the detection module includes a gas sensor.
The concentration of the flammable gas can be effectively detected through the gas sensor.
Further, the flammable gas includes methane, hydrogen sulfide, and carbon monoxide.
The combustible gas in the pipeline is usually biogas, which comprises components such as methane, hydrogen sulfide and carbon monoxide. The concentration detection of methane, hydrogen sulfide and carbon monoxide has high accuracy.
Further, the execution module comprises an electromagnet, a cover plate and a first elastic piece; the back of the well lid is provided with a chute, and the through hole passes through the chute; the cover plate is connected with the sliding chute in a sliding mode, one end of the first elastic piece is fixedly connected with one end of the sliding chute, and the other end of the first elastic piece is fixedly connected with one end of the cover plate; the electromagnet is fixed at one end of the sliding chute, which is far away from the first elastic piece; when the electromagnet is electrified, the cover plate can be adsorbed, so that the through hole is closed by the cover plate.
Through the cooperation of electro-magnet and apron, can be convenient open or closed through-hole, simple structure, it is convenient to maintain.
The manhole cover further comprises a base for placing the manhole cover, wherein a first transverse hole is formed in the position, right opposite to the side wall of the manhole cover, of the side wall of the base; a second transverse hole is formed in the side wall of the well cover; when the well lid is placed on the base, the first transverse hole, the second transverse hole and the sliding groove are positioned on the same straight line; a clamping column and a second elastic piece are arranged in the first transverse hole; the clamping column is connected with the first transverse hole in a sliding mode, one end of the second elastic piece is fixedly connected with the bottom of the first transverse hole, and the other end of the second elastic piece is fixedly connected with one end of the clamping column; one end of the sliding chute where the electromagnet is located is close to the bottom of the second transverse hole; when the electromagnet is electrified, the clamping column can be adsorbed, so that the clamping column slides into the second transverse hole.
When the through-hole need be closed, the inflammable gas concentration in the pipeline is higher usually, when closing the through-hole, the card post slides to the horizontal downthehole of second, blocks the well lid, avoids the well lid to be opened by accident and causes the incident.
Further, the length of the second transverse hole is smaller than that of the clamping column.
The problem that the well lid cannot be clamped due to the fact that the clamping column completely slides into the second transverse hole in a short time can be avoided.
And the client is used for receiving the alarm signal of the communication module.
The staff of being convenient for in time knows the interior flammable gas concentration of pipeline higher through the customer end to dispose fast.
Further, the client is also used for sending an execution instruction to the communication module, the communication module sends the received execution instruction to the processing module, and the processing module sends a signal for opening or closing the through hole to the execution module based on the execution instruction.
The staff can control the opening and closing of the through hole through the client manually.
Drawings
FIG. 1 is a logic block diagram of a first embodiment of an electronic alert device;
FIG. 2 is a bottom view of a first embodiment of an electronic warning device;
fig. 3 is a bottom view of a second embodiment of an electronic warning device.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include:
well lid 1, through-hole 2, spout 3, electro-magnet 4, apron 5, first elastic component 6, base 7, first horizontal hole 8, the horizontal hole of second 9, card post 10, second elastic component 11.
Example one
As shown in fig. 1, an electronic alarm device includes a well lid 1 provided with a through hole 2, and further includes: the system comprises a detection module, a communication module, an execution module, a processing module and a client.
The detection module is used for detecting the concentration of inflammable gas in the pipeline; sending the concentration information of the flammable gas to a processing module; the detection module includes a gas sensor. Combustible gases include methane, hydrogen sulfide and carbon monoxide. In this embodiment, the gas sensor is specifically an MQ-2 type smoke gas sensor. The gas-sensitive material used by the MQ-2 gas sensor is tin dioxide (SnO2) with low conductivity in clean air, and when combustible gas exists in the environment where the sensor is located, the conductivity of the sensor increases along with the increase of the concentration of the combustible gas in the air. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit. In this embodiment, the gas sensor mainly detects the concentration of methane.
The processing module is used for receiving the combustible gas concentration information of the detection module and judging the combustible gas concentration; if the concentration of the flammable gas is greater than the threshold value A, the processing module controls the communication module to send an alarm signal; if the concentration of the flammable gas is greater than the threshold value B, the processing module sends a signal for closing the through hole 2 to the control execution module. Wherein the threshold value a is smaller than the threshold value B. The threshold value A is 5% -8%, and the threshold value B is 9% -15%; in this example, the threshold a is 7% and the threshold B is 10%.
The processing module is also internally provided with specific date information and is also used for judging whether the current date belongs to the specific date or not, and if so, reducing the value of the threshold B. In this embodiment, the specific period information is the date of the spring festival of the chinese calendar, specifically, 10 days before the spring festival to 15 days after the spring festival of the chinese calendar. And when the concentration of the inflammable gas is greater than the threshold value B, the processing module also judges the current time, and if the current time is less than 1 point or greater than 5 points, the processing module sends a signal for closing the through hole 2 to the control execution module. In this example, the time was measured in 24 hours; the processing module employs an STM32 series microcontroller.
The communication module is used for sending an alarm signal; in this embodiment, the communication module adopts the hua be EM770U 3G module, and because the data transmission amount of the communication module is small, compared with the 4G module, the cost can be effectively saved by selecting the 3G module.
The client is used for receiving the alarm signal of the communication module. The client is further used for sending an execution instruction to the communication module, the communication module sends the received execution instruction to the processing module, and the processing module sends a signal for opening or closing the through hole 2 to the execution module based on the execution instruction. The user side can adopt the existing mobile phone with the networking function, such as smart phones like Huashi, millet and OPPO.
The execution module is used for opening or closing the through hole 2. As shown in fig. 2, the execution module comprises a power supply, a relay, an electromagnet 4, a cover plate 5 and a first elastic piece 6; the back of the well lid 1 is provided with a chute 3, and the through hole 2 longitudinally penetrates through the chute 3; the cover plate 5 is connected with the sliding groove 3 in a sliding mode, the cover plate 5 slides along the length direction of the sliding groove 3, and the cover plate 5 is made of iron in the embodiment. The left end of the first elastic piece 6 is welded with the left end of the chute 3, and the right end of the first elastic piece 6 is welded with the left end of the cover plate 5; the electromagnet 4 is welded at the right end part of the chute 3; in this embodiment, the first elastic member 6 is a compression spring. When the electromagnet 4 is not electrified, the cover plate 5 is positioned at the left side of the sliding chute 3; when the electromagnet 4 is electrified, the cover plate 5 is adsorbed, so that the cover plate 5 slides from left to right, the through hole 2 is covered, and the through hole 2 is closed. The output end of the power supply is connected with the input end of the relay, and the output end of the relay is connected with the input end of the electromagnet 4; the relay control end is connected with the output end of the processing module.
Example two
An electronic alarm device, which is different from the first embodiment in that: as shown in fig. 3, the manhole cover further comprises a base 7 for placing the manhole cover 1, wherein a first transverse hole 8 is formed in a position, right opposite to the side wall of the manhole cover 1, of the side wall of the base 7; a second transverse hole 9 is formed in the side wall of the well cover 1; the first transverse hole 8 and the second transverse hole 9 are both cylindrical and have the same diameter; when the well lid 1 is placed on the base 7, the first transverse hole 8, the second transverse hole 9 and the sliding groove 3 are positioned on the same straight line; a clamping column 10 and a second elastic piece 11 are arranged in the first transverse hole 8; the clamping column 10 is connected with the first transverse hole 8 in a sliding mode, and the clamping column 10 slides along the first transverse hole 8 in the axial direction;
the right end of the second elastic part 11 is welded with the bottom of the first transverse hole 8, and the left end of the second elastic part 11 is welded with the right end of the clamping column 10; when the electromagnet 4 is electrified, the clamping column 10 can be adsorbed, so that the clamping column 10 slides into the second transverse hole 9. The length of the second transverse hole 9 is smaller than the length of the catch 10.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides an electronic alarm device, is including the well lid of seting up the through-hole, its characterized in that still includes:
the detection module is used for detecting the concentration of inflammable gas in the pipeline;
the communication module is used for sending an alarm signal;
the execution module is used for opening or closing the through hole;
the processing module is used for receiving the combustible gas concentration information of the detection module and judging the combustible gas concentration; if the concentration of the flammable gas is greater than the threshold value A, the processing module controls the communication module to send an alarm signal; if the concentration of the inflammable gas is greater than the threshold value B, the processing module sends a signal for closing the through hole to the execution module; wherein the threshold value a is smaller than the threshold value B.
2. An electronic alarm device according to claim 1, wherein: the processing module is also internally provided with specific date information and is also used for judging whether the current date belongs to the specific date or not, and if so, reducing the value of the threshold B.
3. An electronic alarm device according to claim 2, wherein: and when the concentration of the inflammable gas is greater than the threshold value B, the processing module also judges the current time, and if the current time is less than 1 point or greater than 5 points, the processing module sends a signal for closing the through hole to the execution module.
4. An electronic alarm device according to claim 3, wherein: the detection module includes a gas sensor.
5. An electronic alarm device according to claim 4, wherein: the flammable gas includes methane, hydrogen sulfide, and carbon monoxide.
6. An electronic alarm device according to claim 5, wherein: the execution module comprises an electromagnet, a cover plate and a first elastic piece; the back of the well lid is provided with a chute, and the through hole passes through the chute; the cover plate is connected with the sliding chute in a sliding mode, one end of the first elastic piece is fixedly connected with one end of the sliding chute, and the other end of the first elastic piece is fixedly connected with one end of the cover plate; the electromagnet is fixed at one end of the sliding chute, which is far away from the first elastic piece; when the electromagnet is electrified, the cover plate can be adsorbed, so that the through hole is closed by the cover plate.
7. An electronic alarm device according to claim 6, wherein: the manhole cover is characterized by also comprising a base for placing the manhole cover, wherein a first transverse hole is formed in the position, right opposite to the side wall of the manhole cover, of the side wall of the base; a second transverse hole is formed in the side wall of the well cover; when the well lid is placed on the base, the first transverse hole, the second transverse hole and the sliding groove are positioned on the same straight line; a clamping column and a second elastic piece are arranged in the first transverse hole; the clamping column is connected with the first transverse hole in a sliding mode, one end of the second elastic piece is fixedly connected with the bottom of the first transverse hole, and the other end of the second elastic piece is fixedly connected with one end of the clamping column; one end of the sliding chute where the electromagnet is located is close to the bottom of the second transverse hole; when the electromagnet is electrified, the clamping column can be adsorbed, so that the clamping column slides into the second transverse hole.
8. An electronic alarm device according to claim 7, wherein: the length of the second transverse hole is smaller than that of the clamping column.
9. An electronic alarm device according to claim 8, wherein: the client is used for receiving the alarm signal of the communication module.
10. An electronic alarm device according to claim 9, wherein: the client is further used for sending an execution instruction to the communication module, the communication module sends the received execution instruction to the processing module, and the processing module sends a signal for opening or closing the through hole to the execution module based on the execution instruction.
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| CN201910556749.7A CN110164100B (en) | 2019-06-25 | 2019-06-25 | Electronic alarm device |
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| CN201910556749.7A CN110164100B (en) | 2019-06-25 | 2019-06-25 | Electronic alarm device |
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| CN110164100A CN110164100A (en) | 2019-08-23 |
| CN110164100B true CN110164100B (en) | 2020-11-17 |
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| CN111063169A (en) * | 2019-11-26 | 2020-04-24 | 蔡云翔 | Intelligent monitoring and alarming system and method for well lid |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913111A (en) * | 1995-06-29 | 1997-01-14 | Nippon Steel Corp | Manhole at top part of blast furnace |
| JP3821466B2 (en) * | 2000-07-24 | 2006-09-13 | 株式会社荒木製作所 | Covering equipment for underground facilities |
| CN201148626Y (en) * | 2008-01-21 | 2008-11-12 | 梁欣悦 | Septic tank explosion prevention manhole cover |
| CN101363232A (en) * | 2008-08-16 | 2009-02-11 | 周佰兴 | Precast combined inspection well |
| WO2009010865A3 (en) * | 2007-07-19 | 2009-06-25 | Thomas Francis Hussey | Drainage sealing device |
| CN103362140A (en) * | 2012-03-27 | 2013-10-23 | 汪洲 | Automatic opening and closing device of fuel gas valve well lid hole |
| KR20140147533A (en) * | 2013-06-20 | 2014-12-30 | 최경진 | Bad smell blocking device of manhole |
| CN104727347A (en) * | 2015-04-02 | 2015-06-24 | 王永德 | Manhole cover preventing accidental explosions |
| CN105604097A (en) * | 2016-03-04 | 2016-05-25 | 嘉兴恒力建材科技有限公司 | High-strength circular well lid with function of open flame prevention |
| CN205329726U (en) * | 2015-10-15 | 2016-06-22 | 何佳蔓 | Inspection shaft lid with survey marsh gas concentration function |
| CN106337485A (en) * | 2016-09-28 | 2017-01-18 | 山东华旗新能源科技有限公司 | Intelligent drainage network system and method for road safety |
| CN205896488U (en) * | 2016-07-20 | 2017-01-18 | 杭州市环境集团有限公司 | Biogas collection well casing seal structure |
| CN206143814U (en) * | 2016-10-18 | 2017-05-03 | 重庆工业职业技术学院 | From explosion -proof sewer well lid of battery powered |
| CN107268765A (en) * | 2017-06-30 | 2017-10-20 | 西安建筑科技大学 | The method and device of pernicious gas in a kind of draining-off sewage pipe network |
| CN206722039U (en) * | 2017-05-22 | 2017-12-08 | 李洁 | A kind of well cover for sewer with methane content indicator function |
| CN206768874U (en) * | 2017-05-15 | 2017-12-19 | 武昌工学院 | A kind of fire-fighting emergent well lid |
| CN207296582U (en) * | 2017-06-11 | 2018-05-01 | 深圳市中兰环保科技股份有限公司 | A kind of dangerous waste thing keeps in sealing system |
| CN208270531U (en) * | 2018-05-31 | 2018-12-21 | 朱光顺 | Detection device, intelligent and safe well lid and management system |
| CN208330277U (en) * | 2018-05-30 | 2019-01-04 | 中国石油天然气股份有限公司 | Valve well guard system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5675982A (en) * | 1996-04-26 | 1997-10-14 | Rocky Research | Pulsed operation control valve |
| CN104859978A (en) * | 2015-05-29 | 2015-08-26 | 中国石油化工股份有限公司 | Method for avoiding organic ester storage tank gas-phase burning and explosion and built-up pressure breaking |
| CN205978489U (en) * | 2016-06-29 | 2017-02-22 | 宝鸡石油机械有限责任公司 | Downhole safety is pombe face seal valve plate disk seat for valve |
| US11486243B2 (en) * | 2016-08-04 | 2022-11-01 | Baker Hughes Esp, Inc. | ESP gas slug avoidance system |
| CN107760365A (en) * | 2016-08-19 | 2018-03-06 | 张鹏 | A kind of technique that can improve oil gas coking treatment effeciency |
| JP2018072146A (en) * | 2016-10-28 | 2018-05-10 | 株式会社日立製作所 | Gas sensor |
| GB2555830B (en) * | 2016-11-11 | 2020-02-05 | M I Drilling Fluids Uk Ltd | Valve assembly and method of controlling fluid flow in an oil, gas or water well |
| CN208606403U (en) * | 2018-07-27 | 2019-03-15 | 广东万家乐燃气具有限公司 | A kind of Auto-drainage structure and water heater |
-
2019
- 2019-06-25 CN CN201910556749.7A patent/CN110164100B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913111A (en) * | 1995-06-29 | 1997-01-14 | Nippon Steel Corp | Manhole at top part of blast furnace |
| JP3821466B2 (en) * | 2000-07-24 | 2006-09-13 | 株式会社荒木製作所 | Covering equipment for underground facilities |
| WO2009010865A3 (en) * | 2007-07-19 | 2009-06-25 | Thomas Francis Hussey | Drainage sealing device |
| CN201148626Y (en) * | 2008-01-21 | 2008-11-12 | 梁欣悦 | Septic tank explosion prevention manhole cover |
| CN101363232A (en) * | 2008-08-16 | 2009-02-11 | 周佰兴 | Precast combined inspection well |
| CN103362140A (en) * | 2012-03-27 | 2013-10-23 | 汪洲 | Automatic opening and closing device of fuel gas valve well lid hole |
| KR20140147533A (en) * | 2013-06-20 | 2014-12-30 | 최경진 | Bad smell blocking device of manhole |
| CN104727347A (en) * | 2015-04-02 | 2015-06-24 | 王永德 | Manhole cover preventing accidental explosions |
| CN205329726U (en) * | 2015-10-15 | 2016-06-22 | 何佳蔓 | Inspection shaft lid with survey marsh gas concentration function |
| CN105604097A (en) * | 2016-03-04 | 2016-05-25 | 嘉兴恒力建材科技有限公司 | High-strength circular well lid with function of open flame prevention |
| CN205896488U (en) * | 2016-07-20 | 2017-01-18 | 杭州市环境集团有限公司 | Biogas collection well casing seal structure |
| CN106337485A (en) * | 2016-09-28 | 2017-01-18 | 山东华旗新能源科技有限公司 | Intelligent drainage network system and method for road safety |
| CN206143814U (en) * | 2016-10-18 | 2017-05-03 | 重庆工业职业技术学院 | From explosion -proof sewer well lid of battery powered |
| CN206768874U (en) * | 2017-05-15 | 2017-12-19 | 武昌工学院 | A kind of fire-fighting emergent well lid |
| CN206722039U (en) * | 2017-05-22 | 2017-12-08 | 李洁 | A kind of well cover for sewer with methane content indicator function |
| CN207296582U (en) * | 2017-06-11 | 2018-05-01 | 深圳市中兰环保科技股份有限公司 | A kind of dangerous waste thing keeps in sealing system |
| CN107268765A (en) * | 2017-06-30 | 2017-10-20 | 西安建筑科技大学 | The method and device of pernicious gas in a kind of draining-off sewage pipe network |
| CN208330277U (en) * | 2018-05-30 | 2019-01-04 | 中国石油天然气股份有限公司 | Valve well guard system |
| CN208270531U (en) * | 2018-05-31 | 2018-12-21 | 朱光顺 | Detection device, intelligent and safe well lid and management system |
Non-Patent Citations (2)
| Title |
|---|
| NB-IOT在城市智慧阀井监测系统中的应用;曾岳梅等;《煤气与热力》;20181231;全文 * |
| Study of Various Conjugate Gradient Based ANN Training Methods for Designing Intelligent Manhole Gas Detection System;Varun Kumar Ojha等;《2013 International Symposium on Computational and Business Intelligence》;20140127;全文 * |
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