CN115078013A - Multi-point on-line continuous monitoring system for greenhouse gas in sewage treatment - Google Patents
Multi-point on-line continuous monitoring system for greenhouse gas in sewage treatment Download PDFInfo
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Abstract
The invention relates to a multi-point on-line continuous monitoring system for greenhouse gas in sewage treatment, which comprises: the parallel floating box sampling system comprises a plurality of floating gas sampling boxes and is used for collecting gas to be detected at a preset sampling position; the gas pipeline sensing system is used for monitoring gas data in each gas pipeline; the automatic valve system is used for controlling the sampling sequence and the time length of the sampling point through the electric drive valve core; the double-head gas sampling pump is used for driving the gas to be detected and carrying out gas analysis processing; and the sensing equipment processing end is used for carrying out data monitoring on the collected gas to be detected. The invention also relates to a corresponding processing method, a processor and a storage medium thereof. By adopting the system, the processing method, the processor and the storage medium thereof, the on-line continuous monitoring of the multi-point greenhouse gas emission data can be realized, the high-spatial-temporal resolution data can be obtained, the carbon emission of each process flow of the sewage treatment plant can be accurately measured, and the system is attached to the characteristic of the unorganized emission of greenhouse gas of the sewage treatment plant.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to the technical field of greenhouse gas real-time monitoring, and specifically relates to a sewage treatment greenhouse gas multipoint on-line continuous monitoring system, a sewage treatment greenhouse gas multipoint on-line continuous monitoring method, a sewage treatment greenhouse gas multipoint on-line continuous monitoring processor and a computer readable storage medium.
Background
As the concentration of greenhouse gases in the atmosphere rises year by year, global warming has a great influence on the production and life of human beings, and monitoring of the concentration level and the change trend of the greenhouse gases is necessary. The ecological environment department of 3/29/2021 issues a notice on strengthening related work of enterprise greenhouse gas emission report management, emphasizes that a high-quality greenhouse gas monitoring system is established in energy-intensive industries such as steel, oil exploitation, waste treatment and the like, and provides accurate data support for emission reduction.
For the waste treatment industry, a sewage treatment plant is a large source of greenhouse gas emission, and a large amount of N is generated in the process flow 2 O、CH 4 、CO 2 And the emission reduction of the gases is highly regarded by the nation. The domestic common adoption of single flux case collection gas can't rationally collect, low spatial resolution to unorganized dissipation's greenhouse gas among the sewage treatment process. And in the gas analysis process, the gas concentration collected by the method in a moment can be used as the average concentration of the discharged gas in a long time, and the information acquisition speed is too slow and the time resolution is low. Therefore, a greenhouse gas monitoring system with high spatial and temporal resolution aiming at a special process flow of sewage treatment needs to be developed urgently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a sewage treatment greenhouse gas multipoint online continuous monitoring system, a treatment method, a processor and a computer readable storage medium thereof, which can acquire multipoint greenhouse gas online continuous emission data.
In order to achieve the above objects, the present invention provides a multi-point on-line continuous monitoring system, a processing method, a processor and a computer readable storage medium thereof for greenhouse gas in sewage treatment, comprising:
this sewage treatment greenhouse gas multiple spot online continuous monitoring system, its key feature is, the system include:
the parallel floating box sampling system comprises a plurality of floating gas sampling boxes and is used for respectively collecting gas to be detected at a plurality of preset sampling positions;
the gas pipeline sensing system is connected with the parallel floating box sampling system through a plurality of gas pipelines and is used for monitoring gas data in each gas pipeline;
the automatic valve system is connected with the parallel floating box sampling system, comprises a main flow channel, a sub flow channel and a valve core, and is used for electrically driving the valve core to control the communication sequence and the communication duration of the main flow channel and the sub flow channel so as to control the sampling sequence and the duration of each sampling point;
the double-head gas sampling pump is connected with the automatic valve system and is used for driving gas to be detected and transporting the gas to be detected from the sampling point to a processing end of the sensing equipment for gas analysis processing;
and the sensing equipment processing end is connected with the parallel floating box sampling system and the double-head gas sampling pump and is used for monitoring and processing gas data of the collected gas to be detected through a plurality of sensors and gas detection equipment.
Preferably, the system further comprises:
the data transmission module is connected with the sensing equipment processing end and used for acquiring each analog quantity signal of the gas to be detected from the sensing equipment processing end and carrying out data transmission processing through wireless communication; and
and the data processing module is connected with the data transmission module and used for acquiring the acquired detection data of the gas to be detected, rapidly calculating the acquired gas flux data by introducing a data processing program and acquiring final high-space-time resolution data.
Preferably, the parallel floating box sampling system specifically comprises:
several float gaseous sampling case float and set up on sewage sampling point position, sample sewage surface of water top gas as the gas that awaits measuring, and each float gaseous sampling case of formula carry out parallel transmission through the gas pipeline to setting up.
Preferably, the gas pipeline sensing system is specifically:
including pipeline gas flowmeter, pipeline temperature sensor, pipeline humidity transducer, pipeline baroceptor, and each sensor all install in corresponding the gas pipeline of floating gas sampling case on for the gas flow, temperature, humidity and the atmospheric pressure data of awaiting measuring among each gas pipeline of monitoring.
Preferably, the automatic valve system is specifically:
the valve comprises a valve head with a main flow passage and a plurality of sub flow passages, a valve seat connected with the lower end of the valve head, and a valve core arranged inside the valve seat; wherein the content of the first and second substances,
the valve head is provided with a main flow channel and sub flow channels which are not communicated with each other, the sub flow channels are connected with each gas pipeline in the device, the sampling sequence of each sewage sampling point is controlled by controlling the opening and closing sequence and the opening and closing time duration of the sub flow channels, and the main flow channel and the sub flow channels are connected through a switching guide groove by rotating an electric driving valve core, so that gas to be detected between different gas pipelines flows into the main flow channel in a time-sharing manner for monitoring treatment.
Preferably, the gas pipeline sensing system is disposed in the sensing device processing end, and the sensing device processing end further includes:
NDIR gas analyzers and environmental base parameter monitoring systems, wherein,
the NDIR gas analyzer is used for measuring the greenhouse gas concentration data in the gas to be measured;
the environment basic parameter monitoring system is provided with a temperature sensor and an air pressure sensor and is used for monitoring the flow, temperature, humidity and air pressure data of the air in the current environment.
Preferably, an air inlet end of the double-headed gas sampling pump is connected with a main flow passage of the automatic valve system, and an air outlet end of the double-headed gas sampling pump is connected with the NDIR gas analyzer, and is used for transporting the gas to be detected from sewage sampling points of a plurality of preset sampling positions to a receiving end of the NDIR gas analyzer for gas concentration analysis processing.
Preferably, the data transmission module specifically includes:
the system comprises an electronic wireless communication data terminal serving as a master station and a plurality of wireless Modbus simulation measurement control terminals serving as slave stations based on a Modbus RTU protocol; each wireless Modbus analog quantity measurement control terminal is connected with the processing end of the sensing equipment, and is used for collecting analog quantity signals of the gas to be measured from the gas pipeline sensing system, the NDIR gas analyzer and the environment basic parameter monitoring system and transmitting the analog quantity signals to the electronic wireless communication data terminal through ad hoc network wireless communication.
Preferably, the data processing module is a computer application terminal loaded with a data processing program, the computer application terminal performs data interaction processing with the electronic wireless communication data terminal, calculates gas flux data of the gas to be detected, which is acquired by the gas pipeline sensing system, the NDIR gas analyzer and the environmental basic parameter monitoring system, through the data processing program, and uploads the gas flux data to a cloud platform matched with the device, so that a user can acquire high-spatial-temporal resolution data of the gas to be detected.
The processing method for realizing the multipoint on-line continuous monitoring of the greenhouse gas by utilizing the system is mainly characterized by comprising the following steps of:
(1) setting a plurality of corresponding sampling points in a monitoring device according to actual monitoring requirements;
(2) setting the sampling sequence and the sampling duration of each sampling point;
(3) respectively sampling a plurality of sampling points according to a preset sampling sequence and sampling duration;
(4) carrying out gas data sampling processing on each sampling point by using a gas pipeline sensing system and a sensing equipment processing end;
(5) and the collected related data are transmitted to the data processing module through the data transmission module, the data processing of calculating the gas flux is carried out, and the data are transmitted to the cloud platform in real time.
Preferably, the step (4) is specifically:
sampling the gas temperature, humidity, concentration, air pressure and flow of the gas to be detected in each gas pipeline through the gas pipeline sensing system; and measuring greenhouse gas concentration data in the gas to be measured by an NDIR gas analyzer.
The processor for realizing the multipoint online continuous monitoring of the greenhouse gases is mainly characterized in that the processor is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the method for realizing the multipoint online continuous monitoring of the greenhouse gases are realized.
The main problem of the computer readable storage medium is that it has a computer program stored thereon, said computer program being executable by a processor to implement the steps of the above-mentioned method for multipoint on-line continuous monitoring of greenhouse gases.
By adopting the multi-point online continuous monitoring system, the processing method, the processor and the computer readable storage medium for the greenhouse gas in sewage treatment, the multi-point gas collection is carried out by utilizing the setting method of the parallel floating boxes, the floating boxes are placed in different areas and are connected in parallel to an automatic valve system, the system can control the sampling sequence and the sampling duration of each sampling point by electrically driving the control valve, and then the online continuous emission data of the multi-point greenhouse gas is obtained by using a gas analyzer, and the obtained real-time continuous data has high space-time resolution. The device can realize the on-line continuous monitoring of multi-point greenhouse gas emission data, obtain high spatial and temporal resolution data, accurately measure the carbon emission of each process flow of the sewage treatment plant, and fit the unorganized dissipation characteristic of greenhouse gas of the sewage treatment plant, and has the advantage of realizing the high spatial and temporal resolution monitoring of greenhouse gas in the field of sewage treatment.
Drawings
FIG. 1 is a schematic structural diagram of a multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment according to the present invention.
FIG. 2 is a flow chart of the processing method for realizing multipoint online continuous monitoring of greenhouse gases.
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
Before describing in detail embodiments that are in accordance with the present invention, it should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the system for multipoint on-line continuous monitoring of greenhouse gases in sewage treatment is shown, wherein the system comprises:
the parallel floating box sampling system comprises a plurality of floating gas sampling boxes and is used for respectively collecting gas to be detected at a plurality of preset sampling positions;
the gas pipeline sensing system is connected with the parallel floating box sampling system through a plurality of gas pipelines and is used for monitoring gas data in each gas pipeline;
the automatic valve system is connected with the parallel floating box sampling system, comprises a main flow channel, a sub flow channel and a valve core, and is used for electrically driving the valve core to control the communication sequence and the communication duration of the main flow channel and the sub flow channel so as to control the sampling sequence and the duration of each sampling point;
the double-head gas sampling pump is connected with the automatic valve system and is used for driving gas to be detected and transporting the gas to be detected from the sampling point to a processing end of the sensing equipment for gas analysis processing;
and the sensing equipment processing end is connected with the parallel floating box sampling system and the double-end gas sampling pump and is used for monitoring and processing gas data of the acquired gas to be detected through a plurality of sensors and gas detection equipment.
As a preferred embodiment of the present invention, the system further comprises:
the data transmission module is connected with the sensing equipment processing end and used for acquiring each analog quantity signal of the gas to be detected from the sensing equipment processing end and carrying out data transmission processing through wireless communication; and
and the data processing module is connected with the data transmission module and used for acquiring the acquired detection data of the gas to be detected, rapidly calculating the acquired gas flux data by introducing a data processing program and acquiring final high-space-time resolution data.
As a preferred embodiment of the present invention, the parallel floating box sampling system specifically comprises:
several float gaseous sampling case float and set up on sewage sampling point position, sample sewage surface of water top gas as the gas that awaits measuring, and each float gaseous sampling case of formula carry out parallel transmission through the gas pipeline to setting up.
As a preferred embodiment of the present invention, the gas pipeline sensing system specifically comprises:
including pipeline gas flowmeter, pipeline temperature sensor, pipeline humidity transducer, pipeline baroceptor, and each sensor all install in the correspondence the gas pipeline of floating gas sampling case on for the gas flow, temperature, humidity and the atmospheric pressure data that await measuring among each gas pipeline of monitoring.
As a preferred embodiment of the present invention, the automated valve system specifically comprises:
the valve comprises a valve head with a main flow passage and a plurality of sub flow passages, a valve seat connected with the lower end of the valve head, and a valve core arranged inside the valve seat; wherein, the first and the second end of the pipe are connected with each other,
the valve head is provided with a main flow channel and sub flow channels which are not communicated with each other, the sub flow channels are connected with each gas pipeline in the device, the sampling sequence of each sewage sampling point is controlled by controlling the opening and closing sequence and the opening and closing time duration of the sub flow channels, and the main flow channel and the sub flow channels are connected through a switching guide groove by rotating an electric driving valve core, so that gas to be detected between different gas pipelines flows into the main flow channel in a time-sharing manner for monitoring treatment.
As a preferred embodiment of the present invention, the gas pipeline sensing system is disposed in the sensing device processing end, and the sensing device processing end further includes:
NDIR gas analyzers and environmental base parameter monitoring systems, wherein,
the NDIR gas analyzer is used for measuring the greenhouse gas concentration data in the gas to be measured;
the environment basic parameter monitoring system is provided with a temperature sensor and an air pressure sensor and is used for monitoring the flow, temperature, humidity and air pressure data of the air in the current environment.
As a preferred embodiment of the present invention, an air inlet of the double-headed gas sampling pump is connected to a main flow channel of the automated valve system, and an air outlet of the double-headed gas sampling pump is connected to the NDIR gas analyzer, and is configured to transport the gas to be detected from a sewage sampling point at a plurality of preset sampling positions to a receiving end of the NDIR gas analyzer for gas concentration analysis processing.
As a preferred embodiment of the present invention, the data transmission module specifically includes:
the system comprises an electronic wireless communication data terminal serving as a master station and a plurality of wireless Modbus simulation measurement control terminals serving as slave stations based on a Modbus RTU protocol; each wireless Modbus analog quantity measurement control terminal is connected with the processing end of the sensing equipment, and is used for collecting analog quantity signals of the gas to be measured from the gas pipeline sensing system, the NDIR gas analyzer and the environment basic parameter monitoring system and transmitting the analog quantity signals to the electronic wireless communication data terminal through ad hoc network wireless communication.
As a preferred embodiment of the present invention, the data processing module is a computer application terminal loaded with a data processing program, the computer application terminal performs data interaction processing with the electronic wireless communication data terminal, calculates gas flux data of the gas to be measured, which is acquired by the gas pipeline sensing system, the NDIR gas analyzer and the environmental basic parameter monitoring system, through the data processing program, and uploads the gas flux data to a cloud platform matched with the apparatus, so that a user can obtain high spatial and temporal resolution data of the gas to be measured.
Referring to fig. 2, the processing method for realizing multipoint online continuous monitoring of greenhouse gases by using the device described above comprises the following steps:
(1) setting a plurality of corresponding sampling points in a monitoring device according to actual monitoring requirements;
(2) setting the sampling sequence and the sampling duration of each sampling point;
(3) respectively sampling a plurality of sampling points according to a preset sampling sequence and sampling duration;
(4) carrying out gas data sampling processing on each sampling point by using a gas pipeline sensing system and a sensing equipment processing end;
(5) and the collected related data are transmitted to the data processing module through the data transmission module, the data processing of calculating the gas flux is carried out, and the data are transmitted to the cloud platform in real time.
As a preferred embodiment of the present invention, the step (4) specifically comprises:
sampling the gas temperature, humidity, concentration, air pressure and flow of the gas to be detected in each gas pipeline through the gas pipeline sensing system; and measuring greenhouse gas concentration data in the gas to be measured by an NDIR gas analyzer.
In a specific embodiment of the present invention, the system for multipoint online continuous monitoring of greenhouse gases in sewage treatment is used in a sewage treatment plant in SBR process, and is used for multipoint online continuous monitoring of emission data of methane, nitrous oxide and other gases, and the system actually comprises the following processing steps:
(1) in this embodiment, the parallel floating box sampling system includes a plurality of floating gas sampling boxes and gas pipelines connected thereto, and the gas pipelines are not communicated with each other.
a) Specifically, the floating gas sampling box is designed to have a total height of 540mm, a bottom diameter of 530mm and a coverage area of 0.22m 2 The floating cover enters the water by 100-150mm and can be adjusted according to the actual condition.
b) Specifically, the floating gas sampling box needs to be placed according to the set sampling points, the box body is inverted before launching and slightly buckled on the water surface, disturbance to the water surface is reduced, a hole reserved above the sampling module is stably connected with a gas pipeline, the medical injector with the plastic three-way valve is used for completely pumping out air in the injector, and a gas sample (about 60mL) in the box is collected every 5min for 5 times.
c) Specifically, the sampling points are respectively arranged at a water inlet of a sewage treatment plant, an anoxic selector and one point of an SBR reaction tank, namely a sampling point A, a sampling point B and a sampling point C (required points can be automatically increased).
d) Specifically, the holes reserved in the floating gas sampling module are stably connected with the gas pipeline, and a connection mode for ensuring gas tightness is selected.
e) Specifically, the gas pipelines are not communicated with each other, and the gas output end is connected with the gas input end of the sub-flow channel of the automatic valve system.
(2) In this embodiment, the neutron flow channel of the automatic valve system is connected with a valve head, the lower end of the valve head is connected with a valve seat, and a valve core is placed inside the valve seat. The lower end surface of the valve head and the upper end surface of the valve core are detailed, and a diversion trench is arranged between the valve head and the valve core. This automatic multichannel diverter valve only needs a valve body can realize the circulation of many monitoring pipe timesharing and main monitoring pipe way.
a) Specifically, the external main runner pipeline of main runner valve head is used for the transportation of the gas that awaits measuring, and the external a plurality of branch road runner pipes that are used for receiving the gas that awaits measuring of valve head are crossed to the sub-runner.
b) Specifically, the valve core is driven electrically to rotate, so that the diversion trenches are switched to communicate the main runner with the sub-runners conveniently, and the gas to be detected of different pipelines flows into the main runner in a time-sharing manner to be monitored.
(3) In this embodiment, the inlet end of the double-head gas sampling pump is connected to the main channel of the automated valve system, and the outlet end of the double-head gas sampling pump is connected to the NDIR gas analyzer. Used for driving the gas to be measured to move from the sampling point to the NDIR gas analyzer.
(4) In this embodiment, the NDIR analyzer receives the gas to be measured and performs the measurement. And obtaining the infrared absorption spectrum of the gas, and outputting the gas concentration data of each component.
(5) In this embodiment, the gas pipeline sensing system includes a pipeline gas flow meter, a pipeline temperature sensor, a pipeline humidity sensor, and a pipeline air pressure sensor. The device is used for measuring data such as the flow, the temperature, the humidity and the like of gas to be measured in the gas pipeline.
(6) In this embodiment, the data transmission module includes a wireless Modbus analog measurement control terminal based on a Modbus RTU protocol, which is used as a slave station to collect and transmit signals of each sensing device layer to the master station electronic wireless communication data terminal. The master station is connected with the data processing module by using a USB interface, and transmits the monitored data to the data processing module.
a) Specifically, the wireless Modbus analog quantity measurement and control terminal as the slave station is installed at each sensing equipment end: the system comprises a gas pipeline sensing system, an NDIR gas analyzer and an environment basic parameter monitoring system. The slave stations have the functions of inputting and outputting analog quantity signals, can transmit signals to the master station in a wireless mode, are unique in address, and do not interfere with each other.
b) Specifically, the electronic wireless communication data terminal serving as the master station and a plurality of slave stations form multi-point cluster self-organized wireless communication, a USB interface is carried and connected with the data processing module through the interface, and data are transmitted to the data processing module.
(7) In this embodiment, the data processing module is a computer equipped with a program, and the front end detection data is inputted via the USB interface, processed by the program, and calculated according to the flux formula F-k V/a (dC/dt) ρ [ T0/(T0+ T)]P/P0, calculating N 2 O, and the like, and uploading to the cloud platform.
a) Specifically, the obtained data sources comprise a gas pipeline monitoring system, an NDIR gas analyzer and an environment basic parameter monitoring system
b) Specifically, the gas concentration C was measured by means of an NDIR analyzer, and data was recorded every 15 seconds (the measurement period may be changed depending on the actual situation).
c) Specifically, the size of the tank exposed to the water surface is recorded, the volume V and the cross-sectional area A of the gas pipeline are determined, and the determined volume V and the determined cross-sectional area A are input into a program as known quantities of the program
d) Specifically, the (dC/dt) is obtained by using a first-order derivation method according to the online continuous concentration data of the gas to be detected measured by the device; t is measured by a pipeline temperature sensor in the gas pipeline sensing system; and P is measured by a pipeline air pressure sensor in the gas pipeline sensor system.
e) In particular, wherein T 0 The environment basic parameter monitoring system is obtained by measuring by a temperature sensor; p 0 In the environment basic parameter monitoring system, the air pressure sensor measures the environment basic parameter.
The processor for realizing the multipoint on-line continuous monitoring of the greenhouse gases is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the method for realizing the multipoint on-line continuous monitoring of the greenhouse gases are realized.
The computer readable storage medium has a computer program stored thereon, wherein the computer program can be executed by a processor to implement the steps of the above-mentioned method for multipoint online continuous monitoring of greenhouse gases.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, and the program may be stored in a computer readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "an embodiment," "some embodiments," "an example," "a specific example," or "an embodiment," "a specific implementation," "the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
By adopting the multi-point online continuous monitoring system, the processing method, the processor and the computer readable storage medium for the greenhouse gas in sewage treatment, the multi-point gas collection is carried out by utilizing the setting method of the parallel floating boxes, the floating boxes are placed in different areas and are connected in parallel to an automatic valve system, the system can control the sampling sequence and the sampling duration of each sampling point by electrically driving the control valve, and then the online continuous emission data of the multi-point greenhouse gas is obtained by using a gas analyzer, and the obtained real-time continuous data has high space-time resolution. The device can realize the on-line continuous monitoring of multi-point greenhouse gas emission data, obtain high spatial and temporal resolution data, accurately measure the carbon emission of each process flow of the sewage treatment plant, and fit the unorganized dissipation characteristic of greenhouse gas of the sewage treatment plant, and has the advantage of realizing the high spatial and temporal resolution monitoring of greenhouse gas in the field of sewage treatment.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (13)
1. A multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment is characterized by comprising:
the parallel floating box sampling system comprises a plurality of floating gas sampling boxes and is used for respectively collecting gas to be detected at a plurality of preset sampling positions;
the gas pipeline sensing system is connected with the parallel floating box sampling system through a plurality of gas pipelines and is used for monitoring gas data in each gas pipeline;
the automatic valve system is connected with the parallel floating box sampling system, comprises a main flow channel, a sub flow channel and a valve core, and is used for electrically driving the valve core to control the communication sequence and the communication duration of the main flow channel and the sub flow channel so as to control the sampling sequence and the duration of each sampling point;
the double-head gas sampling pump is connected with the automatic valve system and is used for driving gas to be detected and transporting the gas to be detected from the sampling point to a processing end of the sensing equipment for gas analysis processing;
and the sensing equipment processing end is connected with the parallel floating box sampling system and the double-head gas sampling pump and is used for monitoring and processing gas data of the collected gas to be detected through a plurality of sensors and gas detection equipment.
2. The multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment according to claim 1, wherein said system further comprises:
the data transmission module is connected with the sensing equipment processing end and used for acquiring each analog quantity signal of the gas to be detected from the sensing equipment processing end and carrying out data transmission processing through wireless communication; and
and the data processing module is connected with the data transmission module and used for acquiring the acquired detection data of the gas to be detected, rapidly calculating the acquired gas flux data by introducing a data processing program and acquiring final high-space-time resolution data.
3. The multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment according to claim 1, wherein the sampling system of the parallel floating boxes is specifically:
several float gaseous sampling case float and set up on sewage sampling point position, sample sewage surface of water top gas as the gas that awaits measuring, and each float gaseous sampling case of formula carry out parallel transmission through the gas pipeline to setting up.
4. The multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment according to claim 3, wherein the gas pipeline sensing system is specifically:
including pipeline gas flowmeter, pipeline temperature sensor, pipeline humidity transducer, pipeline baroceptor, and each sensor all install in corresponding the gas pipeline of floating gas sampling case on for the gas flow, temperature, humidity and the atmospheric pressure data of awaiting measuring among each gas pipeline of monitoring.
5. The multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment as claimed in claim 3, wherein the automatic valve system is specifically:
the valve comprises a valve head with a main flow passage and a plurality of sub flow passages, a valve seat connected with the lower end of the valve head, and a valve core arranged inside the valve seat; wherein the content of the first and second substances,
the valve head is characterized in that a main flow channel and each sub flow channel are arranged in the valve head and are not communicated with each other, the sub flow channels are connected with each gas pipeline, the sampling sequence of each sewage sampling point is controlled by controlling the opening and closing sequence and the opening and closing time duration of the sub flow channels, and a diversion groove is conveniently switched to communicate the main flow channel with each sub flow channel by rotating an electric driving valve core between the main flow channel and the sub flow channels, so that gas to be detected between different gas pipelines flows into the main flow channel in a time-sharing manner for monitoring treatment.
6. The multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment according to claim 5, wherein said gas pipeline sensing system is disposed in said sensing equipment processing end, and said sensing equipment processing end further comprises:
NDIR gas analyzers and environmental base parameter monitoring systems, wherein,
the NDIR gas analyzer is used for measuring the greenhouse gas concentration data in the gas to be measured;
the environment basic parameter monitoring system is provided with a temperature sensor and an air pressure sensor and is used for monitoring the flow, temperature, humidity and air pressure data of the air in the current environment.
7. The multipoint online continuous monitoring system for greenhouse gases in sewage treatment according to claim 6, wherein an air inlet end of the double-head gas sampling pump is connected with a main flow channel of the automated valve system, and an air outlet end of the double-head gas sampling pump is connected with the NDIR gas analyzer, and is used for transporting the gas to be detected from the sewage sampling points of a plurality of preset sampling positions to a receiving end of the NDIR gas analyzer for gas concentration analysis treatment.
8. The multipoint on-line continuous monitoring system for greenhouse gases in sewage treatment according to claim 6, wherein the data transmission module is specifically:
the system comprises an electronic wireless communication data terminal serving as a master station and a plurality of wireless Modbus simulation measurement control terminals serving as slave stations based on a Modbus RTU protocol; each wireless Modbus analog quantity measurement control terminal is connected with the processing end of the sensing equipment, and is used for collecting analog quantity signals of the gas to be measured from the gas pipeline sensing system, the NDIR gas analyzer and the environment basic parameter monitoring system and transmitting the analog quantity signals to the electronic wireless communication data terminal through ad hoc network wireless communication.
9. The multipoint online continuous monitoring system for greenhouse gases in sewage treatment as claimed in claim 8, wherein the data processing module is a computer application terminal loaded with a data processing program, the computer application terminal and the electronic wireless communication data terminal perform data interaction processing, and the data processing program is used for calculating gas flux data of the gas to be measured, which is acquired by the gas pipeline sensing system, the NDIR gas analyzer and the environmental basic parameter monitoring system, and uploading the data to a cloud platform matched with the system, so that a user can acquire high spatial and temporal resolution data of the gas to be measured.
10. A process for realizing multipoint on-line continuous monitoring of greenhouse gases by using the system of any one of claims 1 to 9, said process comprising the steps of:
(1) setting a plurality of corresponding sampling points in a monitoring system according to actual monitoring requirements;
(2) setting the sampling sequence and the sampling duration of each sampling point;
(3) respectively sampling a plurality of sampling points according to a preset sampling sequence and sampling duration;
(4) carrying out gas data sampling processing on each sampling point by using a gas pipeline sensing system and a sensing equipment processing end;
(5) and the collected related data are transmitted to the data processing module through the data transmission module, the data processing of calculating the gas flux is carried out, and the data are transmitted to the cloud platform in real time.
11. The processing method for realizing multipoint online continuous monitoring of greenhouse gases as claimed in claim 10, wherein the step (4) is specifically as follows:
sampling the gas temperature, humidity, concentration, air pressure and flow of the gas to be detected in each gas pipeline through the gas pipeline sensing system; and measuring greenhouse gas concentration data in the gas to be measured by an NDIR gas analyzer.
12. A processor for implementing multipoint on-line continuous monitoring of greenhouse gases, wherein the processor is configured to execute computer-executable instructions which, when executed by the processor, implement the steps of the method for multipoint on-line continuous monitoring of greenhouse gases as claimed in any one of claims 10 to 11.
13. A computer-readable storage medium, having stored thereon a computer program executable by a processor for carrying out the steps of the method for multipoint, on-line and continuous monitoring of greenhouse gases as claimed in any one of claims 10 to 11.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539382A (en) * | 2023-05-24 | 2023-08-04 | 重庆师范大学 | Collecting device and measuring method for greenhouse gas transport flux of different water layers of lake |
| CN116990453A (en) * | 2023-07-31 | 2023-11-03 | 珠海深圳清华大学研究院创新中心 | Greenhouse gas release monitoring method and system for sewage treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539382A (en) * | 2023-05-24 | 2023-08-04 | 重庆师范大学 | Collecting device and measuring method for greenhouse gas transport flux of different water layers of lake |
| CN116990453A (en) * | 2023-07-31 | 2023-11-03 | 珠海深圳清华大学研究院创新中心 | Greenhouse gas release monitoring method and system for sewage treatment system |
| CN116990453B (en) * | 2023-07-31 | 2024-05-28 | 珠海深圳清华大学研究院创新中心 | Greenhouse gas release monitoring method and system for sewage treatment system |
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