CN107606472A - A kind of gas tiny structure detection and safety dumping method - Google Patents
A kind of gas tiny structure detection and safety dumping method Download PDFInfo
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- CN107606472A CN107606472A CN201710982651.9A CN201710982651A CN107606472A CN 107606472 A CN107606472 A CN 107606472A CN 201710982651 A CN201710982651 A CN 201710982651A CN 107606472 A CN107606472 A CN 107606472A
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Abstract
The present invention relates to a kind of detection of gas tiny structure and safety dumping method.This method is used for low pressure gas-holder and booster fan coordinated control system, and control system includes at least two groups of Hall proximity transducers, control cabinet, booster fan, more blister cavities low pressure gas-holders and Large Copacity blister cavities normal pressure gas-holder.This method includes：The gas in Large Copacity blister cavities normal pressure gas-holder is imported into cavity using air inlet pipe, cavity is used to store liquid；Air inlet pipe inside and outside differential pressure causes liquid level difference be present between the liquid in liquid and cavity in air inlet pipe, and liquid level difference indicates the gas pressure in normal pressure gas-holder；Liquid level difference is detected using liquid level sensor；And generate signal using liquid level sensor when detecting that liquid level difference decreases below predetermined threshold and transmit the signal to the control cabinet of the start and stop for controlling booster fan, so that booster fan is stopped.Method provided by the invention can realize biogas engineering gas storage, pressure release discharge, pipe network transmission ＆ distribution low cost, safe and reliable operation.
Description
Technical field
The present invention relates to biogas storage cabinet automatic inflating device and safety dumping in low pressure marsh gas transmission ＆ distribution, relate more specifically to one kind
Gas tiny structure detects and safety dumping method, and it according to low pressure gas-holder tolerance when controlling booster fan work to realize linkage
Prevent normal pressure gas-holder from forming negative pressure, suction air, and realize normal pressure gas-holder superpressure safety dumping.
Background technology
Existing combined type gas-holder system includes multiple more blister cavities low pressure gas-holders, Large Copacity reservoir hag, controller, pressure
Force snesor, booster fan etc., these component combinations turn into a system that can be vented with constant pressure.
Hold the monomer biogas engineering less than 1000 cubic metres for pond, unstable aerogenesis, aerogenesis be present and move frequency with wave
The problems such as numerous, aerogenesis peak is with using gas rush hour point inconsistent, if all being carried out using the more blister cavities low pressure gas-holders of standard low
Press constant pressure air feeding, then biogas engineering transmission ＆ distribution link expenditure of construction is too high, but if using inexpensive normal pressure silo-type gas-holder,
Realize Large Copacity gas storage but can not constant low pressure supply, and be difficult to find high reliability, high-precision of the pressure less than 5kPa at this stage
Spend pressure sensor.
When normal pressure gas-holder forms negative pressure, if blower fan works, and low pressure gas-holder does not reach setting height also
When, fermentation vat positive/negative pressure protector will act, and aspirate air, prevent negative pressure mistake in fermentation vat teleblem and normal pressure gas-holder film body
Damaged by pressure by atmospheric pressure greatly, and aspirate air can cause low pressure gas-holder methane content reduction, or even be delivered to user's gas can not
Light.
Exactly under this background, there is the present invention.
The content of the invention
The purpose of the solution of the present invention be solve the problems, such as at least in part it is emphasized before, and on the whole to low pressure
Biogas storage cabinet automatic inflating device and safety dumping provide improved solution in biogas transmission ＆ distribution.
More specifically, the problem to be solved in the present invention is to control booster fan work to realize according to low pressure gas-holder tolerance
Prevent normal pressure gas-holder from forming negative pressure, suction air during linkage, and realize normal pressure gas-holder superpressure safety dumping.
A kind of method discharged according to the stopping of normal pressure gas-holder Stress control blower fan or gas is provided.It is micro- by using gas
Normal pressure gas-holder pressure is become switching signal and outputs it control cabinet to control supercharging by detection of negative pressure and safety dumping method
The start and stop of blower fan.In addition, when normal pressure gas-holder pressure rise, it is discharged gas in gas-holder more than default head of liquid.
According to the embodiment of the present invention, there is provided a kind of gas tiny structure detection and safety dumping method, it can be used
In low pressure gas-holder and booster fan coordinated control system, the coordinated control system can include at least two groups of Halls close to biography
Sensor, control cabinet, booster fan, more blister cavities low pressure gas-holders and Large Copacity blister cavities normal pressure gas-holder, the gas tiny structure
Detection and safety dumping method are characterised by including：Using air inlet pipe by the Large Copacity blister cavities normal pressure gas-holder
Gas imports cavity, and the cavity is used to store liquid；The air inlet pipe inside and outside differential pressure causes described in the air inlet pipe
Liquid level difference between the liquid in liquid and the cavity be present, the liquid level difference indicates the gas in the normal pressure gas-holder
Pressure；The liquid level difference is detected using liquid level sensor；And detect that the liquid level difference reduces in the liquid level sensor
It is used to control the supercharging wind to generating signal using the liquid level sensor when being less than predetermined threshold and transmitting the signal to
The control cabinet of the start and stop of machine, so that the booster fan is stopped.
In some embodiments, the liquid level sensor can be communicatedly connected with the control cabinet.
In some embodiments, methods described can also include：When the gas pressure in the normal pressure gas-holder surpasses
When crossing the pressure of default liquid level difference, the blast pipe using the top for being arranged on the cavity will be formed by the gas in the cavity
Bubble discharge.
In some embodiments, methods described can also be changed in the cavity including the use of the drainage switch
Liquid changes the default liquid level difference.
In some embodiments, the cavity can store Normal Atmospheric Temperature Liquid or anti-icing fluid.
In some embodiments, the cavity can store running water.
Method provided by the invention can realize that biogas engineering gas storage, pressure release discharge, pipe network transmission ＆ distribution are inexpensive, safe and reliable
Operation.
Those skilled in the art read entire disclosure and will be understood that during claims the present invention these advantages and
Further advantage.
Brief description of the drawings
For a better understanding of the present invention, to describe its excellent for accompanying drawing with reference to appended by only by way of non-limiting example now
Embodiment is selected, wherein：
Fig. 1 is the low pressure gas-holder and supercharging wind using gas tiny structure detection method according to the embodiment of the present invention
The schematic diagram of machine coordinated control system.
Fig. 2 is gas tiny structure detection means control action principle schematic according to the embodiment of the present invention.
Fig. 3 A and Fig. 3 B are the detection of gas tiny structure and safe discharge equipment according to the embodiment of the present invention respectively
Three-dimensional perspective and cross-sectional view.
Fig. 4 is Hall proximity transducer and control cabinet, booster fan operating diagram according to the embodiment of the present invention.
Embodiment
The specific embodiment of the present invention is illustrated below in conjunction with the accompanying drawings.Specific reality of the invention described below
Apply in example, some very specific technical characteristics are described for better understanding of the present invention, but it will be apparent that for
For those skilled in the art, these not all technical characteristics are all the essential features for realizing the present invention.Under
Some specific embodiments of the invention described by text are some exemplary specific embodiments of the present invention, its should not by regarding
For limitation of the present invention.In addition, in order to avoid making the present invention become indigestion, do not carried out for some known technologies
Description.
Referring now to Figure 1, it illustrates use the low of gas tiny structure detection method according to the embodiment of the present invention
Press the schematic diagram of gas-holder and booster fan coordinated control system 100.The coordinated control system 100 includes：At least two groups suddenly
Your proximity transducer 102a, 102b (being referred to as 102), control cabinet 103, booster fan 104, more blister cavities low pressure gas-holders 101 with
And Large Copacity blister cavities gas-holder 105.Two groups of described Hall proximity transducers 102a, 102b are set in more blister cavities low pressure storages respectively
A high position and low level for gas holder, when the Weight plate of low pressure gas-holder reaches high-order or low level, Hall proximity transducer 102 is produced and opened
OFF signal simultaneously sends it to control cabinet 103；Control cabinet 103 changes the switching signal received from Hall proximity transducer 102
For booster fan 104 need start stop signal and start stop signal is sent to booster fan 104；Booster fan 104 is according to control
Start stop signal that case 103 is given and start or stop, the biogas in Large Copacity blister cavities normal pressure gas-holder 105 is transported to more capsules
Chamber low pressure gas-holder 101 stops the biogas in Large Copacity blister cavities normal pressure gas-holder 105 being transported to more blister cavities low pressure gas-holders
101；Large Copacity blister cavities normal pressure gas-holder 105 stores normal pressure biogas；More blister cavities low pressure gas-holders 101 store low pressure can transmission ＆ distribution natural pond
Gas.
In some embodiments, control cabinet 103 (is used to connect from Hall by sensing switch power supply, buffer module
The switching signal of nearly sensor output is converted to the start stop signal of needs), driving switch, control circuit protection element form.
With reference to figure 2, it illustrates the detection of gas tiny structure according to the embodiment of the present invention and safe discharge equipment control
Making principle schematic.Volatilized when with the biogas in the gas of gas end 106 or more blister cavities low pressure gas-holders 101 until more blister cavities are low
When pressing the Weight plate arrival low level in gas-holder 101, control cabinet sends enabling signal to booster fan 104, and booster fan starts
Work, biogas in Large Copacity blister cavities normal pressure gas-holder 105 is transported to more blister cavities low pressure gas-holders 101, carries out tonifying Qi.When more
When the Weight plate of blister cavities low pressure gas-holder 101 reaches high-order, control cabinet sends stop signal, booster fan to booster fan 104
104 are stopped.So move in circles, it is possible to achieve low pressure gas-holder and the coordinated signals that a booster fan high position is stopped, low level opens.
However, there can be problems with：When normal pressure gas-holder forms negative pressure, if blower fan works, and low pressure gas-holder is also not
When reaching setting height, fermentation vat positive/negative pressure protector will act, and aspirate air, prevent fermentation vat teleblem and normal pressure gas-holder
Negative pressure is excessive in film body is damaged by pressure by atmospheric pressure, and the reduction of low pressure gas-holder methane content can be caused by aspirating air, or even is delivered to
User's gas can not be lighted.With further reference to Fig. 2, it can be detected by using gas tiny structure and safe discharge equipment 107 will
Normal pressure gas-holder pressure transition is into switching signal and is output to control cabinet, to control the start and stop of booster fan, so as to solve
Above mentioned problem.Gas tiny structure is detected and safe discharge equipment 107 is connected with Large Copacity blister cavities normal pressure gas-holder 105, and is led to
It is connected to control cabinet 103 letter.In addition, when the pressure rise of normal pressure gas-holder exceedes default head of liquid, the inspection of gas tiny structure
Survey and safe discharge equipment 107 can discharge the gas in gas-holder, this belongs to a kind of safety device again.
With reference to figure 3A and Fig. 3 B, which respectively show the detection of gas tiny structure according to the embodiment of the present invention and safety
The three-dimensional perspective and cross-sectional view of tapping equipment.Gas tiny structure detects and safe discharge equipment includes that liquid can be stored
Cavity 308, the air inlet pipe 309 for putting in cavity 308, be arranged on cavity 308 top blast pipe 310, for detecting air inlet pipe
The liquid level sensor 311 of liquid level difference inside and outside 309, be arranged on cavity 308 bottom drainage switch 312.Cavity 308 can store
Normal Atmospheric Temperature Liquid or anti-icing fluid, in some embodiments, cavity 308 store running water.Air inlet pipe 309 is by normal pressure gas-holder
Gas imports cavity 308, and because inside and outside differential pressure will form liquid level difference in air inlet pipe 309 and cavity 308, the liquid level difference can be with
Reflect gas pressure in normal pressure gas-holder.When the gas pressure in the normal pressure gas-holder exceedes the pressure of default liquid level difference
When, gas forms bubble, and bubble is finally discharged from the blast pipe 310, reaches the function of safety relief.Liquid level sensor 311
Communicatedly it is connected with control cabinet, and generates when detecting that the liquid level difference decreases below predetermined threshold signal and by the signal
Send to the control cabinet for being used for the start and stop for controlling booster fan, so that booster fan is stopped.Drainage switch 312 is changing chamber
Liquid or change in body 308 use when presetting liquid level difference.
With reference to figure 4, it illustrates the Hall proximity transducer and control of low pressure gas-holder and booster fan coordinated control system
Case processed, booster fan operating diagram.Wherein Hall proximity transducer 102 is used to obtain gas-holder altitude signal, control cabinet 103
Gas-holder altitude signal is received from Hall proximity transducer 102 and converts the signal into the start and stop letter for booster fan 104
Number, booster fan 104 starts or stops according to the start stop signal received from control cabinet, with to more blister cavities low pressure gas-holder tonifying Qi or
Stop to more blister cavities low pressure gas-holder tonifying Qi.In some embodiments, the driving switch in control cabinet 103 is that three gears are opened
Close, three driving switch includes manual, lock catch and automatic transmission.In some embodiments, the system possesses supercharging
The manual start-up and shut-down control of blower fan, i.e. manual mode.The manual mode can using in three driving switch it is manual with start increase
Pressure fan, and can at any time by manual manual switching be lock catch so that booster fan is stopped；Increase when manually booting
After pressure fan, if Weight plate reaches high site and do not switch to lock catch also, high-order Hall sensor is acted to stop being pressurized
Blower fan rotates.Then lock catch is switched to by manual again.In some embodiments, the system is also equipped with being pressurized wind
Machine automatic start-stop controls, i.e. automatic mode.The automatic mode can use automatic transmission in three driving switch.Now by Weight plate
Height control booster fan start and stop：Acted by low level Hall sensor, control booster fan starts；Passed by high-order Hall
Sensor acts, and control booster fan stops.
Method provided by the invention can realize that biogas engineering gas storage, pressure release discharge, pipe network transmission ＆ distribution are inexpensive, safe and reliable
Operation.
Although according to preferred embodiment, the present invention is described, exist fall into the scope of the invention it
Interior change, displacement and various replacement equivalents.It should also be noted that exist it is a variety of realize the present invention techniques can
Select mode.It is therefore intended that appended claims are construed to include all within the spirit and scope of the invention
These changes, displacement and various replacement equivalents.
Claims (6)
1. a kind of gas tiny structure detection and safety dumping method, it is used for low pressure gas-holder and booster fan coordinated signals system
System, the coordinated control system include at least two groups of Hall proximity transducers, control cabinet, booster fan, more blister cavities low pressure air storages
Cabinet and Large Copacity blister cavities normal pressure gas-holder, the gas tiny structure detection and safety dumping method are characterised by including：
The gas in the Large Copacity blister cavities normal pressure gas-holder is imported into cavity using air inlet pipe, the cavity is used for storing liquid
Body；The air inlet pipe inside and outside differential pressure causes to deposit between the liquid in the liquid and the cavity in the air inlet pipe
In liquid level difference, the liquid level difference indicates the gas pressure in the normal pressure gas-holder；
The liquid level difference is detected using liquid level sensor；And
Given birth to when the liquid level sensor detects that the liquid level difference decreases below predetermined threshold using the liquid level sensor
Into signal and the control cabinet of the start and stop for controlling the booster fan is transmitted the signal to, so that the booster fan
It is stopped.
2. gas tiny structure detection according to claim 1 and safety dumping method, wherein the liquid level sensor and institute
Control cabinet is stated communicatedly to connect.
3. gas tiny structure detection according to claim 1 and safety dumping method, wherein methods described also include：When
When gas pressure in the normal pressure gas-holder exceedes the pressure of default liquid level difference, the row at the top for being arranged on the cavity is utilized
Tracheae discharges the bubble formed by the gas in the cavity.
4. gas tiny structure according to claim 3 detection and safety dumping method, wherein methods described also including the use of
The drainage switch changes liquid in the cavity or changes the default liquid level difference.
5. gas tiny structure detection according to claim 1 and safety dumping method, wherein the cavity stores normal temperature liquid
Body or anti-icing fluid.
6. gas tiny structure detection according to claim 1 and safety dumping method, wherein the cavity stores running water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982651.9A CN107606472B (en) | 2017-10-20 | 2017-10-20 | Gas micro-negative pressure detection and safe discharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982651.9A CN107606472B (en) | 2017-10-20 | 2017-10-20 | Gas micro-negative pressure detection and safe discharge method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606472A true CN107606472A (en) | 2018-01-19 |
| CN107606472B CN107606472B (en) | 2021-05-28 |
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ID=61078807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710982651.9A Active CN107606472B (en) | 2017-10-20 | 2017-10-20 | Gas micro-negative pressure detection and safe discharge method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476755U (en) * | 2009-09-10 | 2010-05-19 | 同济大学 | Device for measuring height of constant-pressure flexible gas storage cabinet based on parallel multi-bag cavities |
| CN103062624A (en) * | 2013-01-08 | 2013-04-24 | 北京德中绿源设备有限公司 | Positive and negative pressure protector |
| CN204358429U (en) * | 2014-11-28 | 2015-05-27 | 中国科学院青岛生物能源与过程研究所 | A kind of positive/negative pressure protection device |
| CN206191257U (en) * | 2016-08-26 | 2017-05-24 | 上海林海生态技术股份有限公司 | Combined type gas storage cabinet system |
-
2017
- 2017-10-20 CN CN201710982651.9A patent/CN107606472B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476755U (en) * | 2009-09-10 | 2010-05-19 | 同济大学 | Device for measuring height of constant-pressure flexible gas storage cabinet based on parallel multi-bag cavities |
| CN103062624A (en) * | 2013-01-08 | 2013-04-24 | 北京德中绿源设备有限公司 | Positive and negative pressure protector |
| CN204358429U (en) * | 2014-11-28 | 2015-05-27 | 中国科学院青岛生物能源与过程研究所 | A kind of positive/negative pressure protection device |
| CN206191257U (en) * | 2016-08-26 | 2017-05-24 | 上海林海生态技术股份有限公司 | Combined type gas storage cabinet system |
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| Publication number | Publication date |
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| CN107606472B (en) | 2021-05-28 |
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Denomination of invention: A gas micro negative pressure detection and safe discharge method Effective date of registration: 20220307 Granted publication date: 20210528 Pledgee: China Construction Bank Corporation Funan sub branch Pledgor: SHANGHAI LINHAI ECOLOGICAL TECHNOLOGY CO.,LTD. Registration number: Y2022980002188 |
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