CN218512122U - Sampling device to sewage treatment plant greenhouse gas discharges - Google Patents
Sampling device to sewage treatment plant greenhouse gas discharges Download PDFInfo
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- CN218512122U CN218512122U CN202222622083.0U CN202222622083U CN218512122U CN 218512122 U CN218512122 U CN 218512122U CN 202222622083 U CN202222622083 U CN 202222622083U CN 218512122 U CN218512122 U CN 218512122U
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Abstract
The utility model provides a sampling device to sewage treatment plant greenhouse gas emission relates to sewage treatment greenhouse gas emission technical field, and the device includes box panel, gas sampling case and adjustable flotation device, and gas sampling case sets up in the below center department of box panel, and the top and the box panel sealing connection of gas sampling case, and adjustable flotation device sets up in the below of box panel around gas sampling case, is equipped with the gas cycle intake pipe and the outlet duct that are linked together with gas sampling case inside on the box panel. The utility model provides a greenhouse gas sampling case that special item was developed to many scenes in sewage treatment plant, it utilizes adjustable flotation device to adjust and suspends in the height of surface of water and then adjusts the air cavity volume and can deal with aerobic, oxygen deficiency/anaerobic zone greenhouse gas directly to discharge the characteristic in a flexible way, and is nimble portable, easy and easy to operate, is not limited to sewage treatment plant's form, can satisfy a large amount of domestic sewage treatment plants in the carbon and implement the sampling monitoring demand to greenhouse gas under the target.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment greenhouse gas discharges technique and specifically relates to a sampling device to sewage treatment plant greenhouse gas discharges is related to.
Background
The problem of climate warming due to greenhouse gas emissions has become one of the major environmental issues facing the world. China already takes the realization of carbon peak reaching and carbon neutralization as future targets. Monitoring and accounting of greenhouse gas emission are the basis for developing carbon emission reduction work. Municipal sewage treatment systems are an important component of municipal infrastructure and are also one of the major sources of carbon emissions. In order to realize the conversion and removal of pollutants, a sewage treatment plant can generate the consumption of energy and resources, and simultaneously, CO can be directly discharged due to various biological and chemical actions in the operation process 2 、CH 4 And N 2 And greenhouse gases such as O. Carbon emissions generated by greenhouse gases emitted directly from sewage treatment plants are an important component of water plant carbon emission accounting and monitoring.
At present, the gas collection conditions of sewage treatment plants are mainly divided into two types, namely centralized collection and distributed discharge. The gas monitoring of the sewage treatment plant is realized by installing a sampling device, a smoke measuring device and the like on an exhaust chimney in real time. However, due to objective factors such as economic cost, most of the sewage treatment plants in China are distributed ground-based plants, and the generated greenhouse gases are often directly discharged into the atmosphere. The sampling monitoring methods commonly used in the distributed discharge sewage treatment plant at present are divided into two types: a static box method of a non-aeration section and an air bag sampling method of an aeration section are adopted, and a sewage treatment plant usually needs two sets of relatively complex devices to respectively monitor different working sections. And the mode of current static airtight case, the box is heavy, and the convenience is poor, generally gathers through the off-line, monitors by professional organization's meteorological chromatography again, and the sampling process is many, appears the error easily and deviates and can't obtain the monitoring result in real time. With the development of emerging gas monitoring devices, real-time monitoring capabilities have been provided, but no sample box devices have been developed in conjunction therewith. And the volume of the air cavity of the existing equipment is large, so that the response time of the equipment is long, the sealing effect is poor, and the problems of gas loss and accuracy reduction are caused.
Chinese patent CN92507273A discloses a device and a method for collecting greenhouse gases released by a sewage treatment non-aeration unit, which consists of a floating body, a gas collecting box, a temperature monitoring assembly and a gas sampling assembly. The position connection relationship between them is: the floating body is fixed at the lower part of the gas collecting barrel through a floating body fixing baffle on the gas collecting box; the gas production interface at the upper end of the gas collecting box is sequentially connected with a three-way valve, a small gas sampling pump and a gas sampling bag through a silicone tube; the lead wire connected with the temperature probe, the lead wire connected with the pressure probe and the lead wire connected with the stirrer penetrate through the rubber plug on the gas collecting box and are respectively connected with the digital display thermometer, the high-precision digital barometer and the power supply of the stirring device. However, the collecting device provided by the above patent is only suitable for collecting greenhouse gases of various sewage non-aeration treatment process units, and other devices are required to perform collection monitoring aiming at the aeration section. Therefore, a greenhouse gas sampling box which is more flexible and portable, is easy to operate and is specially developed for multiple scenes in a sewage treatment plant needs to be researched so as to meet the requirement of a large number of domestic sewage treatment plants on sampling and monitoring greenhouse gas in carbon and under the target.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sampling device to sewage treatment plant greenhouse gas discharges to it is complicated to solve the collection system structure that is used for sewage treatment plant greenhouse gas among the prior art, and only is applicable to the technical problem of a sewage treatment unit (if aeration unit or non-aeration unit). The utility model provides a plurality of technological effects that preferred technical scheme among a great deal of technical scheme can produce are seen in the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of sampling device to sewage treatment plant greenhouse gas emission, including box panel, gas sampling case and adjustable flotation device, wherein, gas sampling case set up in the below center department of box panel, just the top of gas sampling case with box panel sealing connection, adjustable flotation device centers on gas sampling case set up in the below of box panel be equipped with on the box panel can with inside gas cycle intake pipe and the outlet duct that is linked together of gas sampling case.
According to a preferred embodiment, the gas sampling box is a cylindrical structure with an open bottom, the adjustable floating device is a circular air bag structure arranged around the periphery of the gas sampling box, and the top of the adjustable floating device is connected with the lower surface of the box body panel.
According to a preferred embodiment, the lower surface of the adjustable floatation means is above the level of the bottom opening of the gas sampling box.
According to a preferred embodiment, an inflation port for inflating the interior of the adjustable floatation device is provided on the adjustable floatation device.
According to a preferred embodiment, the bottom of the gas circulation inlet pipe extends to the inside of the gas sampling box, and a plurality of small holes are formed in the part, located in the inside of the gas sampling box, of the gas circulation inlet pipe and on the side surface, facing away from the gas outlet pipe, of the gas circulation inlet pipe at intervals from top to bottom.
According to a preferred embodiment, the box body panel is a circular plate structure with a diameter larger than the inner diameter of the gas sampling box.
According to a preferred embodiment, the box body panel is provided with connecting holes near the outer edge thereof, and the connecting holes are symmetrically arranged at the left side and the right side of the box body panel.
According to a preferred embodiment, a thermometer and a pressure gauge communicated with the inside of the gas sampling box are arranged on the box body panel corresponding to the position of the gas sampling box.
Based on the technical scheme, the utility model discloses a to a sampling device to sewage treatment plant greenhouse gas emission has following technological effect at least:
the utility model discloses a sampling device to sewage treatment plant greenhouse gas emission includes box panel, gas sampling case and adjustable flotation device, and gas sampling case sets up in the below center department of box panel, and gas sampling case's top and box panel sealing connection, and adjustable flotation device sets up in the below of box panel around gas sampling case, is equipped with the gas circulation intake pipe and the outlet duct that can be linked together with gas sampling case inside on the box panel. The utility model discloses a sampling device utilizes adjustable flotation device to adjust its suspension in the height of the surface of water and then adjust the air cavity volume and can deal with good oxygen, oxygen deficiency/anaerobism district greenhouse gas directly to discharge the characteristic in a flexible way, is not limited to sewage treatment plant's form, applicable in aboveground formula or the polytype sewage treatment plant of underground, has stronger universality.
The sampling device of this application embodiment can be based on aeration tank or non-aeration tank makes whole sampling device place different water level height in order to adapt to the direct emission characteristic of good oxygen or oxygen deficiency/anaerobic zone greenhouse gas through adjusting adjustable flotation device, for example when being applied to the aeration tank, adjust adjustable flotation device and make the gas sampling box among the whole sampling device more submerge in aqueous, and make the inside water seal that forms of gas sampling box, the gas sampling box that can be quick full of the gas of collecting in the aeration tank, the greenhouse gas of collection is discharged by the outlet duct, through the change state of the real-time feedback unit collection area greenhouse gas's of the online monitoring instrument that is connected with the outlet duct flow and concentration. When being applied to non-aeration tank, adjust adjustable flotation device in order to reduce the degree of depth of gas sampling box submergence in aqueous, guarantee to possess certain volumetric air cavity under oxygen deficiency/anaerobism condition sampling box top, connect on-line monitoring instrument through the outlet duct, and gas circulation intake pipe is connected to on-line monitoring instrument's gas outlet for gas forms effective rapid cycle above the water level in gas sampling box, monitors gaseous accumulative rate through on-line monitoring instrument and in order to calculate greenhouse gas production rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a sampling device for greenhouse gas emission of a sewage treatment plant according to the present invention;
FIG. 2 is a schematic view of the sampling device of the present invention applied to an aeration tank;
fig. 3 is a schematic view of the sampling device of the present invention applied to a non-aeration tank.
In the figure: 1-box panel; 2-a floatation device; 3-a gas sampling box; 4-connecting holes; 5, gas circulation gas inlet pipe; 6-air outlet pipe; 7-a thermometer; 8-a pressure gauge; 9-Small hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a sampling device to sewage treatment plant greenhouse gas emission, including box panel 1, gas sampling case 3 and adjustable flotation device 2. Preferably, the box panel 1 of the present application can be made of a transparent material so as to facilitate observation of the gas collection state in the gas sampling box. Wherein, gas sampling case 3 sets up in the below center department of box panel 1, and the top and the box panel 1 sealing connection of gas sampling case 3, and adjustable flotation device 2 sets up in the below of box panel 1 around gas sampling case 3, is equipped with gas circulation intake pipe 5 and outlet duct 6 that can be linked together with gas sampling case 3 inside on box panel 1. The sampling device of this application utilizes adjustable flotation device to adjust its height that suspends in the surface of water and then adjusts the air cavity volume and can deal with aerobic, oxygen deficiency/anaerobic zone greenhouse gas directly to discharge the characteristic in a flexible way, is not limited to sewage treatment plant's form, and applicable in aboveground formula or formula sewage treatment plant underground has stronger universality.
Further preferably, the gas sampling box 3 is of a cylindrical structure with an open bottom. The top of the gas sampling box 3 is in sealing connection with the box body panel 1, so that the dissipation of the collected gas is avoided. Adjustable flotation device 2 is the circular ring gasbag structure that sets up around the periphery of gas sampling case 3, and adjustable flotation device 2's top is connected with the lower surface of box panel 1. Preferably, the lower surface of the adjustable floatation device 2 is higher than the plane of the bottom opening of the gas sampling box 3. When placing sampling device on the cell body liquid level, water in the cell body can be from the uncovered 3 insides that get into gas sampling box of bottom of gas sampling box 3 to form certain air cavity on the upper portion of gas sampling box 3, can promote follow-up check out test set's influence speed at the less air cavity that 3 upper portions of gas sampling box formed.
It is further preferred that an inflation port for inflating the interior of the adjustable floatation device 2 is provided on the adjustable floatation device 2. The adjustable floating device 2 is filled with gas through the inflation inlet, and the adjustable floating device can be suspended at different heights by different volumes of the filled gas, so that the adjustable floating device is suitable for an aerobic pool or an anoxic/anaerobic pool.
Further preferably, the bottom of the gas circulation inlet pipe 5 extends to the inside of the gas sampling box 3, and a plurality of small holes 9 are arranged on the part of the gas circulation inlet pipe 5, which is positioned in the inside of the gas sampling box 3 and faces away from the gas outlet pipe 6, and are arranged at intervals from top to bottom. A plurality of apertures that the interval set up about the bottom of gas circulation intake pipe 5 formed can make the air intake homogeneous mixing when oxygen deficiency/anaerobism pond, reduces mixing devices such as blind spot and fan, further makes whole device lightweight, convenient. Preferably, the bottom surface of the outlet tube 6 is flush with the case panel 1 so that the gas collected in the upper portion of the gas sampling case can be completely discharged from the outlet tube 6.
Further preferably, the box body panel 1 is a circular plate structure with a diameter larger than the inner diameter of the gas sampling box 3. Connecting holes 4 are formed in the box body panel 1 close to the outer edge of the box body panel 1, and the connecting holes 4 are symmetrically formed in the left side and the right side of the box body panel 1. The attachment hole 4 is used for attaching a string or rod to lower the entire sampling device into the well.
Further preferably, a thermometer 7 and a pressure gauge 8 communicated with the inside of the gas sampling box 3 are provided on the box body panel 1 at positions corresponding to the gas sampling box 3. For real-time monitoring of the temperature and pressure of the collected greenhouse gases within the gas sampling box.
The following examples are provided to illustrate the manner in which the sampling device of the present application may be used.
For example: the treatment capacity of a sewage treatment plant in a certain northern area is 5 ten thousand tons/day, and the greenhouse gas release amount of an aeration tank and an anoxic tank needs to be monitored. On the surface of an aeration tank of a water plant, an adjustable floating device of the gas sampling box is inflated and then placed on the liquid level of the aeration tank, and a thermometer 7 and a pressure gauge 8 are arranged on the sampling device. Wherein, the inflation degree of the air bag before the liquid level is adjusted by controlling the adjustable floating device 2, so that the whole height of the sampling device is positioned at a low position. After the liquid level is arranged in, as shown in figure 2, the gas sampling box can be immersed in water more, the bottom of the gas circulation air inlet pipe is immersed in water, the relatively stable state and the gas tightness of the sampling box under the disturbance condition of the aeration tank are guaranteed, the gas sampling box runs in a dynamic box mode at the moment, the collected greenhouse gas is discharged by the air outlet pipe 6, the gas sampling box is connected with an online monitoring instrument and can feed back the change state of the gas flow and the gas concentration of the greenhouse in the unit collection area in real time, and the device can remarkably reduce the response time of the monitoring unit because the collected gas can be filled with the gas sampling box quickly.
On the surface of a non-aeration tank (such as an anoxic tank or an anaerobic tank), as shown in fig. 3, the inflation degree of the air bag arranged in front of the liquid level is adjusted by controlling the adjustable floating device 2, so that the whole height of the sampling device is positioned at a high position. After arranging the liquid level in, reduce the degree of depth of gas sampling box submergence in aqueous, make the bottom of gas cycle intake pipe be higher than the liquid level more simultaneously, guarantee gas sampling box top has certain volumetric air cavity under oxygen deficiency/anaerobism condition, because the box submergence has compromise the gas tightness of gas in aqueous, the sampling box was with static case mode operation this moment. Because the gas circulation system is added, namely the gas outlet pipe 6 is connected with the on-line monitoring instrument, the gas outlet of the on-line monitoring instrument is connected with the gas circulation gas inlet pipe 5, tail gas enters the gas sampling box from the small hole 9 of the gas circulation gas inlet pipe 5, so that the gas forms effective and rapid circulation, and the greenhouse gas generation rate is calculated through the gas accumulation rate of the on-line monitoring instrument.
The sampling device has the advantages of simple structure, compact integration, light weight, convenient carrying, flexible application to the collection of greenhouse gases in aeration tanks and non-aeration tanks, and strong universality.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a sampling device to sewage treatment plant greenhouse gas emission, its characterized in that, includes box panel (1), gas sampling case (3) and adjustable flotation device (2), wherein, gas sampling case (3) set up in the below center department of box panel (1), just the top of gas sampling case (3) with box panel (1) sealing connection, adjustable flotation device (2) center on gas sampling case (3) set up in the below of box panel (1) be equipped with on box panel (1) can with gas sampling case (3) inside gas cycle intake pipe (5) and the outlet duct (6) that are linked together.
2. The sampling device for greenhouse gas emission from a sewage treatment plant according to claim 1, wherein the gas sampling box (3) is of a cylindrical structure with an open bottom, the adjustable floating device (2) is of a circular airbag structure arranged around the periphery of the gas sampling box (3), and the top of the adjustable floating device (2) is connected with the lower surface of the box body panel (1).
3. Sampling device for greenhouse gas emissions from a sewage treatment plant according to claim 2, characterized in that the lower surface of the adjustable flotation device (2) is higher than the plane of the bottom opening of the gas sampling tank (3).
4. Sampling device for greenhouse gas emissions from a sewage treatment plant according to claim 2, characterized in that an inflation port for inflating the interior of the adjustable flotation device (2) is provided on the adjustable flotation device (2).
5. The sampling device for greenhouse gas emission of a sewage treatment plant according to claim 1, wherein the bottom of the gas circulation inlet pipe (5) extends to the inside of the gas sampling box (3), and a plurality of small holes (9) are arranged at intervals from top to bottom on the side of the gas circulation inlet pipe (5) which is positioned at the inside of the gas sampling box (3) and faces away from the outlet pipe (6).
6. The sampling device for greenhouse gas emissions from a sewage treatment plant according to claim 1, characterized in that the tank panel (1) is in the form of a circular plate structure with a diameter larger than the inner diameter of the gas sampling tank (3).
7. The sampling device for greenhouse gas emission of a sewage treatment plant according to claim 1, wherein the tank panel (1) is provided with connection holes (4) near an outer edge thereof, and the connection holes (4) are symmetrically arranged at left and right sides of the tank panel (1).
8. The sampling device for greenhouse gas emission of a sewage treatment plant according to claim 1, characterized in that a thermometer (7) and a pressure gauge (8) communicated with the inside of the gas sampling box (3) are provided on the box body panel (1) corresponding to the position of the gas sampling box (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222622083.0U CN218512122U (en) | 2022-09-30 | 2022-09-30 | Sampling device to sewage treatment plant greenhouse gas discharges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222622083.0U CN218512122U (en) | 2022-09-30 | 2022-09-30 | Sampling device to sewage treatment plant greenhouse gas discharges |
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| Publication Number | Publication Date |
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| CN218512122U true CN218512122U (en) | 2023-02-21 |
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| CN202222622083.0U Active CN218512122U (en) | 2022-09-30 | 2022-09-30 | Sampling device to sewage treatment plant greenhouse gas discharges |
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| CN (1) | CN218512122U (en) |
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