CN104699148A - Device and method for controlling gas in cultivating tank - Google Patents
Device and method for controlling gas in cultivating tank Download PDFInfo
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- CN104699148A CN104699148A CN201410849818.0A CN201410849818A CN104699148A CN 104699148 A CN104699148 A CN 104699148A CN 201410849818 A CN201410849818 A CN 201410849818A CN 104699148 A CN104699148 A CN 104699148A
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Abstract
The invention provides a device for controlling gas in a cultivating tank and a method for controlling gas in the cultivating tank. The cultivating tank is provided with at least two paths of gas sources; the control device comprises a pressure sensor, which is arranged on the cultivating tank, wherein the output end thereof is connected with a control unit; a gas sensor, which is used for detecting content of at least one gas in the cultivating tank, and transmitting to the control unit; the control unit, which is used for adjusting flow of at least two gases according to the received pressure and gas content, and transmitting the adjusting instruct to adjusting unit; adjusting units, which are respectively arranged on channels of at least two gases, and adjusting gas flow according to the received adjusting instruct. The device and method for controlling gas in the cultivating tank are good in stability, long in service life, and so on.
Description
Technical field
The present invention relates to fluid to control, particularly the control device of gas and method in incubator.
Background technology
Fig. 1 schematically provides the structure diagram that in prior art, in incubator, gas controls, and as shown in Figure 1, three kinds of gases are input in mixed cell 51, inputs in incubator 11 afterwards.Gas sensor 21,22 is set in incubator 11, the gas content (as carbon dioxide, oxygen content) recorded is transferred in control module 81, control module is according to the gas content received and setting value, remove the flow adjusting each road gas, the switch especially by electromagnetic valve for adjusting 71 has gone.This control mode has some shortcomings, as:
Due to be adopt solenoid valve go control flow, CO
2, O
2unstable Deng flow control, the fluctuation of incubator gas concentration is large, incubator pressure transient;
The frequent switch of solenoid valve, Acceptable life is short, correspondingly improves cost.
Summary of the invention
In order to solve the deficiency in above-mentioned prior art, the invention provides the control device in a kind of good stability, highly sensitive, life-span long application ion gun.
The object of the invention is to be achieved through the following technical solutions:
The control device of gas in incubator, described incubator has at least two road gas sources; Described control device comprises:
Pressure transducer, described pressure transducer is arranged on described incubator, output terminal connection control unit;
Gas sensor, described gas sensor for detecting the content of at least one gas in incubator, and is sent to described control module;
Control module, described control module is used for the flow according to the pressure received, gas content and at least two road gases described in adjusting, and adjustment instruction is sent to adjustment unit;
Adjustment unit, on the passage of at least two road gases described in described adjustment unit is separately positioned on, according to the flow of the adjustment instruction adjustment gas received.
According to above-mentioned control device, alternatively, described adjustment unit comprises:
Proportioning valve, on the passage of at least two road gases described in described proportioning valve is separately positioned on, input end connection traffic control module;
Flow sensor, on the passage of at least two road gases described in described flow sensor is separately positioned on, and be in the downstream of described proportioning valve, output terminal connects described flow-control module;
Flow-control module, described flow-control module is used for the resize ratio valve according to the flow value that receives, the adjustment instruction making the flow value received meet control module to send.
According to above-mentioned control device, alternatively, described at least two road gases are oxygen, nitrogen, carbon dioxide.
Present invention also offers the method for work applying above-mentioned arbitrary control device, there is the advantages such as good stability.This goal of the invention is achieved by the following technical programs:
The method of work of above-mentioned control device, described method of work comprises the following steps:
(A1) gas is input in case, the flow of adjustment input gas, and the pressure that pressure transducer is recorded in incubator meets the requirements, thus obtains the flow range of satisfactory input gas;
(A2) requirement of each gas content in flow range described in control module and incubator, the flow target value of at least two gas Zhong Ge road, road gases described in arranging respectively, and be sent to adjustment unit;
(A3) flow of adjustment unit adjustment incubator each gas source, makes flow value reach desired value, thus make the pressure in incubator, gas content all meets the requirements.
According to above-mentioned method of work, alternatively, described method of work is further comprising the steps:
(A4) pressure transducer, gas sensor record pressure in incubator, gas content respectively, and are sent to control module;
(A5) control module judges whether described pressure, gas content meet the requirements:
As met the requirements, without the need to adjustment;
As undesirable, turn back to step (A2).
According to above-mentioned method of work, alternatively, described adjustment unit working method is:
Flow-control module is according to the flow target value received, and resize ratio valve, the flow value that flow sensor is sent reaches desired value.
Compared with prior art, the beneficial effect that the present invention has is:
1, in incubator, gas concentration change steadily, meets the demand of training method;
2, stable fluidics, ensures the stable problem of incubator pressure;
3, overcome the frequent switch of solenoid valve, cause solenoid valve Problem of Failure, the life-span of Extending culture case;
When 4, solving solenoid valve action, concentration such as to fluctuate suddenly at the problem;
5, Design of Closed-Loop Control, effectively eliminates the difference problem of device, controls simple, good stability;
6, the pressure limit of gas input is wider.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art it is easily understood that: these accompanying drawings only for illustrating technical scheme of the present invention, and and are not intended to be construed as limiting protection scope of the present invention.In figure:
Fig. 1 is the structural representation of control device in prior art;
Fig. 2 is the structural representation of the control device of the embodiment of the present invention 1.
Embodiment
Fig. 2 and following description describe Alternate embodiments of the present invention and how to implement to instruct those skilled in the art and to reproduce the present invention.In order to instruct technical solution of the present invention, simplifying or having eliminated some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will within the scope of the invention.Those skilled in the art should understand that following characteristics can combine to form multiple modification of the present invention in every way.Thus, the present invention is not limited to following Alternate embodiments, and only by claim and their equivalents.
Embodiment 1:
The structure diagram of the control device of gas in the incubator that Fig. 2 schematically illustrates the embodiment of the present invention, as shown in Figure 1, described control device comprises:
At least two road gas sources connect mixed cells 51, and afterwards being input in incubator 11, the gas of input is as nitrogen, carbon dioxide, oxygen;
Pressure transducer 23, described pressure transducer 23 is arranged on described incubator 11, output terminal connection control unit 61;
Gas sensor 21,22, described gas sensor, for detecting the content of at least one gas in incubator 11, for detecting the content of carbon dioxide and oxygen, and is sent to described control module 61;
Control module 61, described control module 61 is for the flow according to the pressure received, gas content and at least two road gases described in adjusting, and adjustment instruction is sent to adjustment unit;
Adjustment unit, on the passage 41 of at least two road gases described in described adjustment unit is separately positioned on, according to the flow of the adjustment instruction adjustment gas received.Described adjustment unit comprises:
Proportioning valve 31, on the passage of at least two road gases described in described proportioning valve is separately positioned on, input end connection traffic control module;
Flow sensor 32, on the passage of at least two road gases described in described flow sensor is separately positioned on, and be in the downstream of described proportioning valve, output terminal connects described flow-control module;
Flow-control module 33, described flow-control module is used for the resize ratio valve according to the flow value that receives, the adjustment instruction making the flow value received meet control module to send.
The method of work of above-mentioned control device, described method of work comprises the following steps:
(A1) gas is input in case, the flow of adjustment input gas, and the pressure that pressure transducer is recorded in incubator meets the requirements, and as 90-130kPa, thus obtains the flow range of satisfactory input gas;
(A2) control module is according to the requirement of gas content each in described flow range and incubator, the flow target value of at least two gas Zhong Ge road, road gases described in arranging respectively, and is sent to adjustment unit;
(A3) flow of adjustment unit adjustment incubator each gas source, makes flow value reach desired value, thus make the pressure in incubator, gas content all meets the requirements; Be specially:
Flow-control module, according to the flow target value of each stream received, adjusts the proportioning valve of each stream, and the flow value that flow sensor is sent reaches desired value;
(A4) pressure transducer, gas sensor record pressure in incubator, gas content respectively, and are sent to control module;
(A5) control module judges whether described pressure, gas content meet the requirements:
As met the requirements, without the need to adjustment;
As undesirable, turn back to step (A2).
Be according to the benefit that the embodiment of the present invention 1 reaches: the scope of the input total gas flow rate being correspondence that met the requirements by pressure in correction acquisition incubator, and then remove according to gas content requirement each in incubator the flow obtaining each input gas.The flow stably regulating input gas is removed in the combination of passing ratio valve, flow sensor and flow-control module, cultivates loading pressure, stable content, without the need to using switch electromagnetic valve.
Embodiment 2:
According to the control device of the embodiment of the present invention 1 and the application examples of method of work thereof.
In this application examples, control objectives is: the pressure in incubator and oxygen, carbon dioxide content meet the requirements.Pressure limit in incubator is 80-150kPa, and oxygen content scope is 1-19%, and carbon dioxide content scope is 0-20%.
Control device is: incubator is arranged oxygen sensor, carbon dioxide sensor and pressure transducer, first pipeline and first flow sensor are also set, the second to the four pipeline is respectively used in incubator, pass into oxygen, carbon dioxide and nitrogen, the second to the four pipeline is arranged respectively the second to the four proportioning valve, the second to the four flow sensor and the second to the four flow-control module.Proportioning valve on each pipeline, flow sensor and flow-control module composition adjustment unit.
The method of work of above-mentioned control device is:
(A1) in incubator, gas is inputted by the first pipeline, and the gap of incubator meeting gas leakage, by the flow of adjustment input gas, make the pressure in incubator be in 80-150kPa, thus obtain the flow range S of input gas;
(A2) according to the requirement of described flow range and oxygen, carbon dioxide content, control module is utilized to obtain the oxygen setting flow S of input incubator
1, carbon dioxide setting flow S
2, nitrogen setting flow S
3, make three kinds of flow value sums inputting gas be in flow range S, the instruction comprising setting flow value is sent to adjustment unit by control module;
(A3) after flow-control module receives instruction, resize ratio valve, simultaneously, the actual flow value that flow sensor records is sent to flow-control module, thus remove resize ratio valve according to actual flow value further, the actual flow value finally making flow sensor export is setting flow value, makes the pressure in incubator and oxygen, carbon dioxide content meets the requirements;
(A4) measured value is sent to control module by pressure transducer, oxygen and carbon dioxide sensor;
(A5) control module judges whether described pressure, gas content meet the requirements:
As met the requirements, without the need to adjustment;
As undesirable, turn back to step (A2).
Be according to the benefit that the embodiment of the present invention 2 reaches: the scope of the input total gas flow rate being correspondence that met the requirements by pressure in correction acquisition incubator, and then remove according to gas content requirement each in incubator the flow obtaining each input gas.The flow stably regulating input gas is removed in the combination of passing ratio valve, flow sensor and flow-control module, cultivates loading pressure, stable content.
Claims (6)
1. the control device of gas in incubator, described incubator has at least two road gas sources; It is characterized in that: described control device comprises:
Pressure transducer, described pressure transducer is arranged on described incubator, output terminal connection control unit;
Gas sensor, described gas sensor for detecting the content of at least one gas in incubator, and is sent to described control module;
Control module, described control module is used for the flow according to the pressure received, gas content and at least two road gases described in adjusting, and adjustment instruction is sent to adjustment unit;
Adjustment unit, on the passage of at least two road gases described in described adjustment unit is separately positioned on, according to the flow of the adjustment instruction adjustment gas received.
2. control device according to claim 1, is characterized in that: described adjustment unit comprises:
Proportioning valve, on the passage of at least two road gases described in described proportioning valve is separately positioned on, input end connection traffic control module;
Flow sensor, on the passage of at least two road gases described in described flow sensor is separately positioned on, and be in the downstream of described proportioning valve, output terminal connects described flow-control module;
Flow-control module, described flow-control module is used for the resize ratio valve according to the flow value that receives, the adjustment instruction making the flow value received meet control module to send.
3. control device according to claim 1, is characterized in that: described at least two road gases are oxygen, nitrogen, carbon dioxide.
4. the method for work of control device according to claim 1, is characterized in that: described method of work comprises the following steps:
(A1) gas is input in incubator, the flow of adjustment input gas, and the pressure that pressure transducer is recorded in incubator meets the requirements, thus obtains the flow range of satisfactory input gas;
(A2) requirement of each gas content in flow range described in control module and incubator, the flow target value of at least two gas Zhong Ge road, road gases described in arranging respectively, and be sent to adjustment unit;
(A3) flow of adjustment unit adjustment incubator each gas source, makes flow value reach desired value, thus make the pressure in incubator, gas content all meets the requirements.
5. method of work according to claim 4, is characterized in that: described method of work is further comprising the steps:
(A4) pressure transducer, gas sensor record pressure in incubator, gas content respectively, and are sent to control module;
(A5) control module judges whether described pressure, gas content meet the requirements:
As met the requirements, without the need to adjustment;
As undesirable, turn back to step (A2).
6. method of work according to claim 4, is characterized in that: described adjustment unit working method is:
Flow-control module is according to the flow target value received, and resize ratio valve, the flow value that flow sensor is sent reaches desired value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849818.0A CN104699148A (en) | 2014-12-26 | 2014-12-26 | Device and method for controlling gas in cultivating tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849818.0A CN104699148A (en) | 2014-12-26 | 2014-12-26 | Device and method for controlling gas in cultivating tank |
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| CN104699148A true CN104699148A (en) | 2015-06-10 |
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| CN201410849818.0A Pending CN104699148A (en) | 2014-12-26 | 2014-12-26 | Device and method for controlling gas in cultivating tank |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042174A (en) * | 2015-08-21 | 2015-11-11 | 厦门医学高等专科学校 | Monitoring and alarming device for inlet and outlet valves of culture tank and implementing method of monitoring and alarming device |
| CN105138043A (en) * | 2015-08-31 | 2015-12-09 | 中国科学院地球环境研究所 | Ultramicro flow velocity control system for carbon dioxide gas |
| CN105132285A (en) * | 2015-07-23 | 2015-12-09 | 中国科学院广州生物医药与健康研究院 | Matrix type water jacketed incubator and control method thereof |
| CN106980329A (en) * | 2017-03-25 | 2017-07-25 | 中建材（合肥）新能源有限公司 | A kind of glass furnace for pure oxygen combustion oxygen flow automatic control system |
| CN117452866A (en) * | 2023-12-22 | 2024-01-26 | 中信戴卡股份有限公司 | Dynamic intelligent control method for aluminum alloy refining |
-
2014
- 2014-12-26 CN CN201410849818.0A patent/CN104699148A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132285A (en) * | 2015-07-23 | 2015-12-09 | 中国科学院广州生物医药与健康研究院 | Matrix type water jacketed incubator and control method thereof |
| CN105042174A (en) * | 2015-08-21 | 2015-11-11 | 厦门医学高等专科学校 | Monitoring and alarming device for inlet and outlet valves of culture tank and implementing method of monitoring and alarming device |
| CN105138043A (en) * | 2015-08-31 | 2015-12-09 | 中国科学院地球环境研究所 | Ultramicro flow velocity control system for carbon dioxide gas |
| CN106980329A (en) * | 2017-03-25 | 2017-07-25 | 中建材（合肥）新能源有限公司 | A kind of glass furnace for pure oxygen combustion oxygen flow automatic control system |
| CN117452866A (en) * | 2023-12-22 | 2024-01-26 | 中信戴卡股份有限公司 | Dynamic intelligent control method for aluminum alloy refining |
| CN117452866B (en) * | 2023-12-22 | 2024-03-22 | 中信戴卡股份有限公司 | Dynamic intelligent control method for aluminum alloy refining |
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Application publication date: 20150610 |