CN102591314A - Centralized oxygen supply system and control method - Google Patents
Centralized oxygen supply system and control method Download PDFInfo
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- CN102591314A CN102591314A CN2012100816970A CN201210081697A CN102591314A CN 102591314 A CN102591314 A CN 102591314A CN 2012100816970 A CN2012100816970 A CN 2012100816970A CN 201210081697 A CN201210081697 A CN 201210081697A CN 102591314 A CN102591314 A CN 102591314A
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Abstract
The invention discloses a centralized oxygen supply system which comprises a first gas supply branch circuit, a second gas supply branch circuit, a gas supply main circuit, a PLC (Programmable Logic Controller) and an alarm, wherein gas supply pipes of the first gas supply branch circuit and the second gas supply branch circuit are combined and then the combined branch circuit is connected with the gas supply main circuit; a gas output pipe of the gas supply main circuit is fed to an oxygen house; and the PLC is used for controlling the switching on/ switching off of each gas circuit according to the pressure of each gas circuit. The invention also discloses a control method for the centralized oxygen supply system; the PLC main controller is used for detecting the pressure of the first gas supply branch circuit; if the pressure is normal, gas is supplied by the first gas supply branch circuit, and otherwise, an alarm signal is sent and the pressure of the first gas supply branch circuit is detected; if the pressure is normal, the gas is supplied by the first gas supply branch circuit; and the processes are repeatedly circulated. The centralized oxygen supply system for centrally supplying oxygen, which is disclosed by the invention, has the advantages that main and standby are circularly used, so that the oxygen can be continuously and stably supplied; a central controller is automatically switched, and thus simpleness in operation and high efficiency are obtained; due to the adoption of sound and light alarm, accidents are avoided; low-pressure gas supply ensures the safety and the reliability; the centralized oxygen supply system is quick and convenient in use; and the equipment is centralized, so that less space is occupied.
Description
Technical field
The present invention relates to a kind of oxygen system, relate in particular to a kind of concentrated oxygen supply system and control method of automatic control.
Background technology
The place that oxygen consuming amount is big such as hospital, oxygen bar etc. usually have a plurality of rooms need continue oxygen supply, simple welding bottle that adopts at present or oxygenerator oxygen supply have use inconvenience, waste of manpower, equipment is many and disperse, shortcoming that inconvenience is managed.So traditional welding bottle or oxygenerator oxygen supply be the centralized management demand of incompatibility modern society more and more.
Summary of the invention
The object of the invention just is to provide in order to address the above problem a kind of concentrated oxygen supply system and control method of automatic control.
In order to achieve the above object, the present invention has adopted following technical scheme:
Concentrated oxygen supply according to the invention system comprises the first oxygen supply bus-bar, first solenoid valve, first electric contact type pressure gauge, the second oxygen supply bus-bar, second solenoid valve, second electric contact type pressure gauge, the 3rd electric contact type pressure gauge, PLC primary controller, audible-visual annunciator, carburetor and decompressor; The escape pipe of the said first oxygen supply bus-bar is connected and is connected with the inlet of said carburetor behind said first solenoid valve; Said first electric contact type pressure gauge is installed in going on the tracheae of said first solenoid valve; The escape pipe of the said second oxygen supply bus-bar is connected and is connected with the inlet of said carburetor behind said second solenoid valve; Said second electric contact type pressure gauge is installed in going on the tracheae of said second solenoid valve; The escape pipe of said carburetor is used the oxygen room with delivering to after said decompressor is connected, and said the 3rd electric contact type pressure gauge is installed in the escape pipe of said decompressor; The signal output part of the signal output part of the signal output part of said first electric contact type pressure gauge, said second electric contact type pressure gauge and said the 3rd electric contact type pressure gauge is connected with the pressure signal input end of said PLC primary controller respectively; The control end of the control end of said first solenoid valve and said second solenoid valve is connected with the valve control output end of said PLC primary controller respectively, the alarm signal output ends of the signal input part of said audible-visual annunciator and said PLC primary controller.
The first oxygen supply bus-bar, first solenoid valve and first electric contact type pressure gauge form one and overlap independently oxygen system; The second oxygen supply bus-bar, second solenoid valve and second electric contact type pressure gauge form another set of oxygen system; Two cover oxygen systems are realized complementation through the automatic control of PLC primary controller, and the assurance native system can be accomplished oxygen supply all the time.The automatic control of PLC primary controller is through detecting the pressure of first electric contact type pressure gauge, second electric contact type pressure gauge and the 3rd electric contact type pressure gauge respectively; And compare with corresponding normally-pressured neighbor, whether be in normal range to judge current pressure, if; Then keep current state; If not, then realize that through the open and close of controlling first solenoid valve and second solenoid valve two overlap the exchange of oxygen systems by the PLC primary controller, and to the audible-visual annunciator output alarm signal; Notify managerial personnel in time to handle, guarantee the normal operation of total system.
Further, said concentrated oxygen supply system also comprises remote controllers, the remote communications port wireless connections of said remote controllers and said PLC primary controller.Through remote controllers, can monitor the state of oxygen system in real time the managerial personnel of administrative center so that make correctly, decision timely, guarantee that further system normally moves.
Particularly, said first oxygen supply bus-bar and the said second oxygen supply bus-bar are connected in parallel by three liquid oxygen Dewar flasks respectively and form, and stop valve all is installed on the escape pipe of each said liquid oxygen Dewar flask.The quantity of liquid oxygen Dewar flask according to actual needs and different in the oxygen supply bus-bar.
Further, be installed in series successively on the escape pipe of said decompressor stop valve and non-return valve.
Further, deliver to after the escape pipe of the escape pipe of said decompressor and high-pressure oxygen cylinder bus-bar is connected in parallel and use the oxygen room, on the escape pipe of said high-pressure oxygen cylinder bus-bar stop valve is installed.The high-pressure oxygen cylinder bus-bar replenishes as concentrated oxygen supply according to the invention system, just in case still can guarantee oxygen supply under the situation that two cover liquid oxygen oxygen systems all break down, has further increased the stability of oxygen supply.
The control method of concentrated oxygen supply according to the invention system, PLC primary controller detect the pressure signal of first electric contact type pressure gauge, second electric contact type pressure gauge and the 3rd electric contact type pressure gauge and control first solenoid valve, second solenoid valve and audible-visual annunciator open and close; Said control method may further comprise the steps: (1) said PLC primary controller detects the pressure of said first electric contact type pressure gauge; Open said first solenoid valve if this pressure is in normal range and close said second solenoid valve and said audible-visual annunciator; Simultaneously; Said PLC primary controller detects the pressure of said the 3rd electric contact type pressure gauge, sends the alerting signal of main road fault to said audible-visual annunciator if this pressure is in improper scope; (2) pressure of said first electric contact type pressure gauge of said PLC primary controller continuous detecting; Close said first solenoid valve if this pressure is in improper scope and send the alerting signal of the first oxygen supply bus-bar fault to said audible-visual annunciator; Simultaneously; Said PLC primary controller detects the pressure of said second electric contact type pressure gauge, opens said second solenoid valve if this pressure is in normal range, simultaneously; Said PLC primary controller detects the pressure of said the 3rd electric contact type pressure gauge, sends the alerting signal of main road fault to said audible-visual annunciator if this pressure is in improper scope; (3) pressure of said second electric contact type pressure gauge of said PLC primary controller continuous detecting; Close said second solenoid valve if this pressure is in improper scope and send the alerting signal of the second oxygen supply bus-bar fault to said audible-visual annunciator; Simultaneously; Said PLC primary controller detects the pressure of said first electric contact type pressure gauge, opens said first solenoid valve if this pressure is in normal range, simultaneously; Said PLC primary controller detects the pressure of said the 3rd electric contact type pressure gauge, sends the alerting signal of main road fault to said audible-visual annunciator if this pressure is in improper scope; (4) cycle repeats step (2) and step (3).
Further; If said PLC primary controller detects the pressure of pressure and said second electric contact type pressure gauge of said first electric contact type pressure gauge not in normal range; The pressure that perhaps is consecutively detected said the 3rd electric contact type pressure gauge is not in normal range; Then said PLC primary controller can cut out said first solenoid valve and said second solenoid valve simultaneously, and sends corresponding alerting signal to said audible-visual annunciator.This moment, the staff can open the stop valve 4 on the escape pipe of high-pressure oxygen cylinder bus-bar 14, continued as with 15 oxygen supplys of oxygen room.
Beneficial effect of the present invention is:
Adopt concentrated oxygen supply of the present invention to have the following advantages: active and standby recycling, oxygen supply is continual and steady; Central controller automaticallyes switch, and is simple to operate, efficient is high; Sound and light alarm is stopped accident; Low pressure is supplied gas safe and reliable; Use efficient and convenient; Centralized equipment occupies little space, and site requirements is unrestricted; It is low to be convenient to management and handling cost; The early investment fund is few; It is lower that oxygen tank oxygen supply cost is compared in use.
Description of drawings
Accompanying drawing is the structural representation of concentrated oxygen supply according to the invention system.
Embodiment
Below in conjunction with accompanying drawing the present invention is made further specific descriptions:
Shown in accompanying drawing; Concentrated oxygen supply according to the invention system comprises the first oxygen supply bus-bar, first solenoid valve 6, first electric contact type pressure gauge 8, the second oxygen supply bus-bar, second solenoid valve 7, second electric contact type pressure gauge 9, the 3rd electric contact type pressure gauge 10, PLC primary controller 2, remote controllers 4, audible-visual annunciator 3, carburetor 11, decompressor 12, stop valve 4, non-return valve 13 and high-pressure oxygen cylinder bus-bar 14; The first oxygen supply bus-bar and the second oxygen supply bus-bar are connected in parallel by three liquid oxygen Dewar flasks 1 respectively and form; Stop valve 4 all is installed on the escape pipe of each liquid oxygen Dewar flask 1; The escape pipe of the first oxygen supply bus-bar first solenoid valve 6 back of connecting is connected with the inlet of carburetor 11; First electric contact type pressure gauge 8 is installed in going on the tracheae of first solenoid valve 6; The escape pipe of the second oxygen supply bus-bar second solenoid valve 7 back of connecting is connected with the inlet of carburetor 11; Second electric contact type pressure gauge 9 is installed in going on the tracheae of second solenoid valve 7; The escape pipe of carburetor 11 be connected in parallel with the escape pipe of high-pressure oxygen cylinder bus-bar 14 again after decompressor 12, stop valve 4 and non-return valve 13 are connected after deliver to oxygen room 15, the escape pipe that stop valve 4, the three electric contact type pressure gauges 10 are installed in decompressor 12 is installed on the escape pipe of high-pressure oxygen cylinder bus-bar 14; The signal output part of the signal output part of the signal output part of first electric contact type pressure gauge 8, second electric contact type pressure gauge 9 and the 3rd electric contact type pressure gauge 10 is connected with the pressure signal input end of PLC primary controller 2 respectively; The control end of the control end of first solenoid valve 6 and second solenoid valve 7 is connected with the valve control output end of PLC primary controller 2 respectively, the alarm signal output ends of the signal input part of audible-visual annunciator 3 and PLC primary controller 2; The remote communications port wireless connections of remote controllers 4 and PLC primary controller 2.On the gas main of the first oxygen supply bus-bar, on the gas main of the second oxygen supply bus-bar and going into of carburetor 11 safety valve 5 all is installed on the tracheae, be used for exhaust where necessary, protection liquid oxygen Dewar flask 1 can explosion.
Shown in accompanying drawing; The first oxygen supply bus-bar, first solenoid valve 6 and first electric contact type pressure gauge 8 form one and overlap independently oxygen system; The second oxygen supply bus-bar, second solenoid valve 7 and second electric contact type pressure gauge 9 form another set of oxygen system; Two cover oxygen systems are realized complementation through the automatic control of PLC primary controller 2, and the assurance native system can be accomplished oxygen supply all the time.The automatic control of PLC primary controller 2 is through detecting the pressure of first electric contact type pressure gauge 8, second electric contact type pressure gauge 9 and the 3rd electric contact type pressure gauge 10 respectively; And compare with corresponding normally-pressured neighbor, whether be in normal range to judge current pressure, if; Then keep current state; If not, then realize that through the open and close of controlling first solenoid valve and second solenoid valve two overlap the exchange of oxygen systems by the PLC primary controller, and to audible-visual annunciator 3 output alarm signals; Notify managerial personnel in time to handle, guarantee the normal operation of total system.
In conjunction with accompanying drawing; The control method of concentrated oxygen supply according to the invention system may further comprise the steps: (1) PLC primary controller 2 detects the pressure of first electric contact type pressure gauge 8; Open first solenoid valve 6 if this pressure is in normal range and close second solenoid valve 7 and audible-visual annunciator 3; Simultaneously, PLC primary controller 2 detects the pressure of the 3rd electric contact type pressure gauge 10, sends the alerting signal of main road fault to audible-visual annunciator 3 if this pressure is in improper scope; (2) pressure of PLC primary controller 2 continuous detecting first electric contact type pressure gauge 8; Close first solenoid valve 6 if this pressure is in improper scope and send the alerting signal of the first oxygen supply bus-bar fault to audible-visual annunciator 3; Simultaneously; PLC primary controller 2 detects the pressure of second electric contact type pressure gauge 9, opens second solenoid valve 7 if this pressure is in normal range, simultaneously; PLC primary controller 2 detects the pressure of the 3rd electric contact type pressure gauge 10, sends the alerting signal of main road fault to audible-visual annunciator 3 if this pressure is in improper scope; (3) pressure of PLC primary controller 2 continuous detecting second electric contact type pressure gauge 9; Close second solenoid valve 7 if this pressure is in improper scope and send the alerting signal of the second oxygen supply bus-bar fault to audible-visual annunciator 3; Simultaneously; PLC primary controller 2 detects the pressure of first electric contact type pressure gauge 8, opens first solenoid valve 6 if this pressure is in normal range, simultaneously; PLC primary controller 2 detects the pressure of the 3rd electric contact type pressure gauge 10, sends the alerting signal of main road fault to audible-visual annunciator 3 if this pressure is in improper scope; (4) cycle repeats step (2) and step (3).
If PLC primary controller 2 detects the pressure of pressure and second electric contact type pressure gauge 9 of first electric contact type pressure gauge 8 not in normal range; The pressure that perhaps is consecutively detected the 3rd electric contact type pressure gauge 10 is not in normal range; Then PLC primary controller 2 can cut out first solenoid valve 6 and second solenoid valve 7 simultaneously, and sends corresponding alerting signal to audible-visual annunciator 3.This moment, the staff can open the stop valve 4 on the escape pipe of high-pressure oxygen cylinder bus-bar 14, continued as with 15 oxygen supplys of oxygen room.
Concentrated oxygen supply according to the invention system is particularly useful for the ward oxygen supply of hospital, is a kind of modern hospital oxygen system, has increased substantially the oxygen supply automatic management level of hospital.
Claims (7)
1. concentrated oxygen supply system; It is characterized in that: comprise the first oxygen supply bus-bar, first solenoid valve, first electric contact type pressure gauge, the second oxygen supply bus-bar, second solenoid valve, second electric contact type pressure gauge, the 3rd electric contact type pressure gauge, PLC primary controller, audible-visual annunciator, carburetor and decompressor; The escape pipe of the said first oxygen supply bus-bar is connected and is connected with the inlet of said carburetor behind said first solenoid valve; Said first electric contact type pressure gauge is installed in going on the tracheae of said first solenoid valve; The escape pipe of the said second oxygen supply bus-bar is connected and is connected with the inlet of said carburetor behind said second solenoid valve; Said second electric contact type pressure gauge is installed in going on the tracheae of said second solenoid valve; The escape pipe of said carburetor is used the oxygen room with delivering to after said decompressor is connected, and said the 3rd electric contact type pressure gauge is installed in the escape pipe of said decompressor; The signal output part of the signal output part of the signal output part of said first electric contact type pressure gauge, said second electric contact type pressure gauge and said the 3rd electric contact type pressure gauge is connected with the pressure signal input end of said PLC primary controller respectively; The control end of the control end of said first solenoid valve and said second solenoid valve is connected with the valve control output end of said PLC primary controller respectively, the alarm signal output ends of the signal input part of said audible-visual annunciator and said PLC primary controller.
2. concentrated oxygen supply according to claim 1 system is characterized in that: said concentrated oxygen supply system also comprises remote controllers, the remote communications port wireless connections of said remote controllers and said PLC primary controller.
3. concentrated oxygen supply according to claim 1 system; It is characterized in that: said first oxygen supply bus-bar and the said second oxygen supply bus-bar are connected in parallel by three liquid oxygen Dewar flasks respectively and form, and stop valve all is installed on the escape pipe of each said liquid oxygen Dewar flask.
4. concentrated oxygen supply according to claim 1 system, it is characterized in that: stop valve and non-return valve successively have been installed in series on the escape pipe of said decompressor.
5. according to claim 1 or 4 described concentrated oxygen supply systems, it is characterized in that: deliver to after the escape pipe of the escape pipe of said decompressor and high-pressure oxygen cylinder bus-bar is connected in parallel and use the oxygen room, on the escape pipe of said high-pressure oxygen cylinder bus-bar stop valve is installed.
6. the control method of a concentrated oxygen supply as claimed in claim 1 system; The PLC primary controller detect the pressure signal of first electric contact type pressure gauge, second electric contact type pressure gauge and the 3rd electric contact type pressure gauge and control first solenoid valve, second solenoid valve and audible-visual annunciator open and close; It is characterized in that: said control method may further comprise the steps: (1) said PLC primary controller detects the pressure of said first electric contact type pressure gauge; Open said first solenoid valve if this pressure is in normal range and close said second solenoid valve and said audible-visual annunciator; Simultaneously; Said PLC primary controller detects the pressure of said the 3rd electric contact type pressure gauge, sends the alerting signal of main road fault to said audible-visual annunciator if this pressure is in improper scope; (2) pressure of said first electric contact type pressure gauge of said PLC primary controller continuous detecting; Close said first solenoid valve if this pressure is in improper scope and send the alerting signal of the first oxygen supply bus-bar fault to said audible-visual annunciator; Simultaneously; Said PLC primary controller detects the pressure of said second electric contact type pressure gauge, opens said second solenoid valve if this pressure is in normal range, simultaneously; Said PLC primary controller detects the pressure of said the 3rd electric contact type pressure gauge, sends the alerting signal of main road fault to said audible-visual annunciator if this pressure is in improper scope; (3) pressure of said second electric contact type pressure gauge of said PLC primary controller continuous detecting; Close said second solenoid valve if this pressure is in improper scope and send the alerting signal of the second oxygen supply bus-bar fault to said audible-visual annunciator; Simultaneously; Said PLC primary controller detects the pressure of said first electric contact type pressure gauge, opens said first solenoid valve if this pressure is in normal range, simultaneously; Said PLC primary controller detects the pressure of said the 3rd electric contact type pressure gauge, sends the alerting signal of main road fault to said audible-visual annunciator if this pressure is in improper scope; (4) cycle repeats step (2) and step (3).
7. the control method of described concentrated oxygen supply according to claim 6 system; It is characterized in that: if said PLC primary controller detects the pressure of pressure and said second electric contact type pressure gauge of said first electric contact type pressure gauge not in normal range; The pressure that perhaps is consecutively detected said the 3rd electric contact type pressure gauge is not in normal range; Then said PLC primary controller can cut out said first solenoid valve and said second solenoid valve simultaneously, and sends corresponding alerting signal to said audible-visual annunciator.
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| CN 201210081697 CN102591314B (en) | 2012-03-26 | 2012-03-26 | Centralized oxygen supply system and control method |
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| CN 201210081697 CN102591314B (en) | 2012-03-26 | 2012-03-26 | Centralized oxygen supply system and control method |
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Cited By (6)
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| CN103574281A (en) * | 2012-07-26 | 2014-02-12 | 北大方正集团有限公司 | Special gas bottle holder, special gas bottle holder monitoring method and special gas bottle holder monitoring apparatus |
| CN104155884A (en) * | 2014-06-29 | 2014-11-19 | 深圳市赛亿科技开发有限公司 | Smart control method for negative ion oxygen bar |
| CN104456080A (en) * | 2014-11-14 | 2015-03-25 | 武汉钢铁(集团)公司 | Laboratory continuous air supplying system |
| CN105036085A (en) * | 2015-08-05 | 2015-11-11 | 湖南泰瑞医疗科技有限公司 | Two-way closed-loop automatic switching device |
| CN107504372A (en) * | 2017-10-09 | 2017-12-22 | 陈梓楠 | A kind of medical apparatus of oxygen supply |
| CN107544422A (en) * | 2017-10-20 | 2018-01-05 | 成都华气厚普机电设备股份有限公司 | A kind of civilian gasification sledge automatic control system of LNG Dewar bottles and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103574281A (en) * | 2012-07-26 | 2014-02-12 | 北大方正集团有限公司 | Special gas bottle holder, special gas bottle holder monitoring method and special gas bottle holder monitoring apparatus |
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| CN107504372A (en) * | 2017-10-09 | 2017-12-22 | 陈梓楠 | A kind of medical apparatus of oxygen supply |
| CN107544422A (en) * | 2017-10-20 | 2018-01-05 | 成都华气厚普机电设备股份有限公司 | A kind of civilian gasification sledge automatic control system of LNG Dewar bottles and control method |
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| CN102591314B (en) | 2013-11-06 |
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