CN206352135U - Sludge gas collection well closing device - Google Patents
Sludge gas collection well closing device Download PDFInfo
- Publication number
- CN206352135U CN206352135U CN201621175909.1U CN201621175909U CN206352135U CN 206352135 U CN206352135 U CN 206352135U CN 201621175909 U CN201621175909 U CN 201621175909U CN 206352135 U CN206352135 U CN 206352135U
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- CN
- China
- Prior art keywords
- concentration
- valve
- closing device
- valve plate
- collection well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of sludge gas collection well closing device, including：Housing, with thermal conductivity cavity, thermal conductivity cavity includes main channel and subchannel, and subchannel is connected in parallel on main channel, and the two ends of main channel are respectively air inlet and gas outlet；Valve, close to the position of gas outlet in main channel, for being opened and closed gas outlet；Concentration sensor, in subchannel；And processor, electrically connected respectively with valve and concentration sensor.Due to concentration sensor can in real-time monitoring tubular road biogas concentration; controller can be according to the opening and closing of the density control valve of monitoring door; this closing device is enabled automatically to control the opening and closing of natural pond gas wel pipeline; save natural pond gas wel manual inspection cost; it is effectively prevented biogas and crosses the appearance for taking out phenomenon; protect the anaerobic environment required for methanogen (Methanogenus); apparatus structure is simple, cheap, working service convenient, and can be widely applied to landfill yard, plant etc. needs the place of Collection utilization methane gas.
Description
Technical field
The utility model is related to biogas pipeline control technology field, and in particular to a kind of sludge gas collection well closing device.
Background technology
China's economic structure accelerates adjustment, and renewable energy source item and low-carbon technology are extremely praised highly.Refuse landfill
Collecting methane can not only eliminate the inflammable and explosive grade safety of landfill yard hidden with being a kind of typical recycling economy project using project
Suffer from, moreover it is possible to turn waste into wealth, reduce greenhouse gas emission, there is provided green energy resource for mitigation of global climate change.The whole nation is each at present
The construction of the intermediate item is all being actively developed in ground, and can the key of Project Success be exactly biogas in landfill yard effectively to be taken out
Take collection.
Current category sludge gas collection system, is typically, every 40-50 meters or so, to make a call to a vertical biogas in landfill yard
Well is collected, these sludge gas collection wells are provided with valve, then are connected by the pipeline of connecting pipe and horizontal positioned, and pipeline front end is set
There is air extractor, biogas is ceaselessly extracted with a constant negative pressure, and collect the valve on well, be generally all in full open state.
The situation of actually every mouthful natural pond gas wel is different, and such as newness degree, underground ponding degree, wellhead sealing layer are
No damage has air entrance etc., causes the methane concentration collected in well also different.Still taken out if methane concentration is too low in well
Gas, the anaerobic environment that can be destroyed required for methanogen (Methanogenus), can cause methanogen to suppress, it is impossible to grow,
Breeding, in addition it is dead, at this time it is accomplished by closing and collects well valve.
At present can only man-hour manually hand-held gas concentration analyzer, each natural pond gas wel situation is detected in the way of regular visit, to determine
It is fixed whether to need to close natural pond gas wel valve.One category sludge gas well up to tens or even hundreds of mouthfuls, this mode wastes time and energy,
Effect is also poor.
The content of the invention
The application offer is a kind of can to automatically control the sludge gas collection well closing device of collecting methane well conduit folding.
A kind of sludge gas collection well closing device is provided in a kind of embodiment, including：
Housing, with thermal conductivity cavity, thermal conductivity cavity includes main channel and subchannel, and subchannel is connected in parallel on main channel, main
The two ends of passage are respectively air inlet and gas outlet；
Valve, close to the position of gas outlet in main channel, for being opened and closed gas outlet；
Concentration sensor, in subchannel, for detecting the concentration of methane and generating correspondence according to different concentration
Concentration signal；
And processor, electrically connected respectively with valve and concentration sensor, the concentration for obtaining concentration sensor production
Signal, and according to the opening and closing of concentration signal control valve.
Further, the upper limit threshold and lower threshold of methane concentration are preset with processor, for believing according to concentration
The contrast of number real-time concentration value calculated；If real-time concentration value is more than or equal to upper limit threshold, control valve is opened entirely；If in real time
Concentration value is less than or equal to lower threshold, then control valve contract fully；If real-time concentration value be located at upper limit threshold and lower threshold it
Between, then control valve is half-open position, and openings of sizes is directly proportional to the size of real-time concentration value.
Further, the upper limit threshold of methane concentration is 45%, and lower threshold is 30%.
Further, valve includes driving seat, valve plate, rotating shaft and valve plate tractor, and driving seat is arranged in main channel, valve
Plate is rotatably arranged at gas outlet by rotating shaft, and one end is connected by valve plate tractor with driving seat, valve plate traction
Device is electrically connected with processor, drive valve plate opening and closing gas outlet.
Further, driving seat is provided with arc-shaped guide rail, and valve plate tractor is movably mounted on arc-shaped guide rail, valve plate
One end be connected with valve plate tractor.
Further, air inlet is provided with waterproof ventilated membrane.
Further, the porch of subchannel is provided with carbon dioxide absorption layer.
Further, concentration sensor also includes temperature and humidity compensation element.
Further, power circuit box is provided with housing, processor is arranged in power circuit box, in power circuit box
Side indicator lamp for showing natural pond gas wel folding condition is installed, indicator lamp is electrically connected with processor.
According to the sludge gas collection well closing device of above-described embodiment, because provided with concentration sensor and processor, concentration is passed
Sensor can in real-time monitoring tubular road biogas concentration, controller can be according to the opening and closing of the density control valve door of monitoring so that this
Closing device can automatically control the opening and closing of natural pond gas wel pipeline, save natural pond gas wel manual inspection cost, be effectively prevented
Biogas crosses the appearance for taking out phenomenon, the anaerobic environment required for protection methanogen (Methanogenus).
Brief description of the drawings
Fig. 1 is a kind of structural representation of sludge gas collection well closing device in embodiment；
Fig. 2 is a kind of part-structure block diagram of sludge gas collection well closing device in embodiment.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
A kind of sludge gas collection well closing device is provided in the present embodiment, and this closing device is mainly used in landfill yard, supported
Growing field etc. needs the place using methane gas.This closing device is arranged on the pipeline section of sludge gas collection well, can as one
The opening and closing of the Valve controlling sludge gas collection well passage of automatic shutter.This closing device is also used on other gas collectors, is led to
Cross the opening and closing that detectable concentration controls pipeline section.
As shown in figure 1, the sludge gas collection well closing device of the present embodiment mainly includes：Housing 1, valve 2, concentration sensor
3 and processor 4.
Housing 1 has a thermal conductivity cavity 11, and thermal conductivity cavity 11 includes main channel and subchannel, the two ends of main channel be respectively into
Gas port 12 and gas outlet 13, subchannel is connected in parallel on main channel, and subchannel is in " n " shape structure.
Valve 2 includes driving seat 21, valve plate 22, rotating shaft 23 and valve plate tractor 24.Seat 21 is driven to be arranged on the master of housing 1
On the inwall of pipeline, driving seat 21 is provided with arc-shaped guide rail 211, and valve plate tractor 24 is provided with arc-shaped guide rail 211, and
The two ends of arc-shaped guide rail 211 are provided with limiter, and valve plate tractor 24 can be moved arcuately guide rail 211.Valve plate 22 passes through rotating shaft
23 is rotatable in the main pipeline of housing 1, and close to the position of gas outlet 13, one end of valve plate 22 and arc-shaped guide rail
Valve plate tractor 24 on 211 is connected, and the drive valve plate 22 of valve plate tractor 24 is rotated along arc-shaped guide rail 211, as shown in figure 1,
When the connection end of valve plate 22 and valve plate tractor 24 is located at the top of arc-shaped guide rail 211, gas outlet 13 is fully opened；Phase
Instead, when the connection end of valve plate 22 and valve plate tractor 24 is located at the bottom of arc-shaped guide rail 211, gas outlet 12 is closed completely
Close.Valve plate tractor 24 is driven by electromagnetic force, according to the movement of the different magnitudes of current and electromagnetism force control valve plate tractor 24.
In order to improve the sealing of the closing of valve plate 22, the encapsulants such as rubber are lined with the outer layer covers of valve plate 22.
Concentration sensor 3 includes thermistor wire 31 and measuring circuit 32.Thermistor wire 31 is semiconductor thermistor
Silk, in the subchannel of thermal conductivity cavity 11, measuring circuit 32 is arranged in housing 1, and the two ends of thermistor wire 31 are passed
Insulator is connected with measuring circuit 32, and measuring circuit 32 provides voltage to the two ends of thermistor wire 31, and thermistor wire 31 exists
Different thermal conductivity and resistance are showed under the methane environment of various concentrations, so that measuring circuit 32 can be according to thermistor wire 31
The different thermal conductivities methane concentration signal different with resistance output.Concrete principle is：The thermal conductivity coefficient of methane is 0.029 λ W/
MK (0 DEG C of temperature, similarly hereinafter), air thermal conductivity coefficient is 0.024 λ W/mK, therefore the environment of different methane concentrations, mixed gas
Thermal conductivity coefficient is different, so that methane concentration is reduced as an example, when methane concentration step-down, and the mixed gas capacity of heat transmission declines, temperature-sensitive electricity
The heat that resistance silk 31 conducts tails off, and resistance value becomes big, and the signal that correspondence measuring circuit 32 is exported changes, so that concentration is sensed
Device 3 can monitor methane concentration in real time and export corresponding concentration signal.This example thermal conductivity cavity 11 includes main channel and subchannel, is
One convection current distributed structure, can reduce influence of the thermal convection current to concentration sensor 3, and taken into account measurement reaction speed.
In order to eliminate influence of the ambient temperature and humidity to measurement result, concentration sensor 3 also includes temperature and humidity compensation element 33,
Temperature and humidity compensation element 33 is connected with measuring circuit 32, the temperature and humidity for compensating detection environment so that measurement result is more
To be accurate.
Processor 4 be single-chip microcomputer, in the power circuit box 5 outside housing 1, as shown in Fig. 2 processor 4 respectively with
Measuring circuit 32 and valve plate tractor 24 are electrically connected, and processor 4 is used for the concentration signal for obtaining the generation of measuring circuit 32, and will be dense
Degree signal transacting calculates the real-time concentration value of methane, is realized and is opened and closed according to real-time concentration duty control valve plate tractor 24.
Specifically, being preset with the upper limit threshold and lower threshold of methane concentration, the upper limit threshold of methane concentration in processor 4
For 45%, lower threshold is 30%, and processor 4 is by the real-time concentration value calculated according to concentration signal and upper limit threshold and lower limit
Threshold value compares, if real-time concentration value is more than or equal to 45%, represents that methane concentration meets standard, control valve 2 is opened completely；If real
When concentration value be less than or equal to 30%, represent that methane concentration, not enough, it is necessary to close continuing fermentation, has treated that sufficient concentrations of methane is defeated again
Go out to use, so when control valve 2 completely close；If real-time concentration value is between 30%~45%, at control valve 2
In half-open position, by taking closure as an example, when concentration value from 45% constantly drops to 30% process, valve 2 goes to complete closure from full opening,
That is the opening size of valve 2 and the real-time concentration value of methane is proportional.
In the present embodiment, waterproof ventilated membrane 6 is provided with the air inlet 12 of main pipeline, waterproof ventilated membrane 6 is polytetrafluoro
Ethene waterproof ventilated membrane, effectively can prevent steam from entering in closing device, thus waterproof ventilated membrane 6 can allow gas by and prevent
Sealing vapour is extracted.Because the pipeline after closing device is laid along physical features level, it is easy to if a large amount of aqueous vapors are extracted
Condensation accumulation pipeline pocket so as to blocking pipeline.The design makes full use of globule gravity and globule surface tension, makes water
Particle easily becomes big steam and is condensed into the globule, strengthens the effect of waterproof and breathable, and condensed water is still back in natural pond gas wel, fits
When holding underground humidity.
In the present embodiment, carbon dioxide absorption layer is installed at the import of subtube, carbon dioxide absorption layer can
Absorbing carbon dioxide so that entering to be in charge of in interior gas does not have carbon dioxide, eliminates shadow of the carbon dioxide to measurement result
Ring.
In the present embodiment, indicator lamp 8 is installed in the side of power circuit box 5, indicator lamp 8 is electrically connected with processor 4,
Indicator lamp 8 can show the green three kinds of colors of reddish yellow, when valve 2 is in the status display green light opened entirely, when valve 2 is in half-dozen
Open state shows amber light, and when valve 2 is in the status display red light of contract fully, indicator lamp 8 is carried by the indicator lamp of different colours
Show the state of testing staff's closing device, testing staff can judge the concentration range value of methane, and indicator lamp 8 can be effective
Instructing manufacture.
The sludge gas collection well closing device that the present embodiment is provided, because provided with concentration sensor 3 and processor 4, concentration is passed
Sensor 3 can in real-time monitoring tubular road biogas concentration, controller 4 can be according to the opening and closing of the density control valve door 2 of monitoring so that
This closing device is capable of the opening and closing of automatic control valve 2, has saved cost of labor, and can timely and effectively control biogas pipe
The opening and closing in road, is effectively prevented biogas and crosses the appearance for taking out phenomenon.
Use above specific case is illustrated to the present invention, is only intended to help and is understood the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, it can also make some simple
Deduce, deform or replace.
Claims (9)
1. a kind of sludge gas collection well closing device, it is characterised in that including：
Housing, with thermal conductivity cavity, the thermal conductivity cavity includes main channel and subchannel, and the subchannel is connected in parallel on the master and led to
On road, the two ends of the main channel are respectively air inlet and gas outlet；
Valve, close to the position of the gas outlet in the main channel, for being opened and closed the gas outlet；
Concentration sensor, in the subchannel, for detecting the concentration of methane and generating correspondence according to different concentration
Concentration signal；
And processor, electrically connected respectively with the valve and concentration sensor, for obtaining the concentration sensor production
Concentration signal, and according to the opening and closing of the concentration signal control valve.
2. sludge gas collection well closing device as claimed in claim 1, it is characterised in that be preset with methane in the processor dense
The upper limit threshold and lower threshold of degree, are contrasted for the real-time concentration value with being calculated according to concentration signal；If real-time concentration value
More than or equal to the upper limit threshold, then the valve is controlled to open entirely；If real-time concentration value is less than or equal to the lower threshold,
Control the valve contract fully；If real-time concentration value is located between upper limit threshold and lower threshold, it is half to control the valve
Open state, and openings of sizes is directly proportional to the size of real-time concentration value.
3. sludge gas collection well closing device as claimed in claim 2, it is characterised in that the upper limit threshold of the methane concentration is
45%, lower threshold is 30%.
4. sludge gas collection well closing device as claimed in claim 3, it is characterised in that the valve include driving seat, valve plate,
Rotating shaft and valve plate tractor, the driving seat are arranged in main channel, and the valve plate is rotatably arranged on by the rotating shaft
At the gas outlet, and one end is connected by the valve plate tractor with the driving seat, the valve plate tractor and processing
Device is electrically connected, and drives the valve plate to be opened and closed the gas outlet.
5. sludge gas collection well closing device as claimed in claim 4, it is characterised in that the driving seat is led provided with arc
Rail, the valve plate tractor is movably mounted on the arc-shaped guide rail, one end of the valve plate and the valve plate tractor
Connection.
6. the sludge gas collection well closing device as described in claim 1 or 5, it is characterised in that the air inlet is provided with waterproof
Ventilated membrane.
7. the sludge gas collection well closing device as described in claim 1 or 5, it is characterised in that the porch of the subchannel is set
There is carbon dioxide absorption layer.
8. the sludge gas collection well closing device as described in claim 1 or 5, it is characterised in that the concentration sensor also includes
Temperature and humidity compensation element.
9. the sludge gas collection well closing device as described in claim 1 or 5, it is characterised in that on the housing provided with power supply
Circuit box, the processor is arranged in the power circuit box, is provided with the side of the power circuit box for showing
The indicator lamp of natural pond gas wel folding condition, the indicator lamp is electrically connected with the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175909.1U CN206352135U (en) | 2016-10-25 | 2016-10-25 | Sludge gas collection well closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175909.1U CN206352135U (en) | 2016-10-25 | 2016-10-25 | Sludge gas collection well closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206352135U true CN206352135U (en) | 2017-07-25 |
Family
ID=59347560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621175909.1U Expired - Fee Related CN206352135U (en) | 2016-10-25 | 2016-10-25 | Sludge gas collection well closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206352135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367317A (en) * | 2016-10-25 | 2017-02-01 | 深圳相控科技股份有限公司 | Biogas collection well opening and closing device |
-
2016
- 2016-10-25 CN CN201621175909.1U patent/CN206352135U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367317A (en) * | 2016-10-25 | 2017-02-01 | 深圳相控科技股份有限公司 | Biogas collection well opening and closing device |
| CN106367317B (en) * | 2016-10-25 | 2019-06-11 | 深圳相控科技股份有限公司 | Sludge gas collection well closing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 Termination date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |