WO2023159729A1 - Novel multi-point monitoring device for oxygen concentration in life cabin - Google Patents

Novel multi-point monitoring device for oxygen concentration in life cabin Download PDF

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Publication number
WO2023159729A1
WO2023159729A1 PCT/CN2022/087283 CN2022087283W WO2023159729A1 WO 2023159729 A1 WO2023159729 A1 WO 2023159729A1 CN 2022087283 W CN2022087283 W CN 2022087283W WO 2023159729 A1 WO2023159729 A1 WO 2023159729A1
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Prior art keywords
oxygen
gas
chip microcomputer
electrically connected
sensor
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PCT/CN2022/087283
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French (fr)
Chinese (zh)
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高青
柳耀健
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安康泰(烟台)生命科学研究院有限公司
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Publication of WO2023159729A1 publication Critical patent/WO2023159729A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes

Definitions

  • the invention relates to the technical field of oxygen concentration monitoring in a life cabin, in particular to a novel multi-point monitoring device for oxygen concentration in a life cabin.
  • the monitoring and control of oxygen concentration occupies an extremely important position.
  • the life chamber mostly adopts single-point monitoring, which is easy to cause when the oxygen leakage location is far away from the sampling port, only when the leaked oxygen diffuses to the sampling port , to be detected.
  • single-point monitoring cannot accurately detect the oxygen concentration in the cabin
  • multi-point monitoring can set up multiple sampling terminals in the cabin to separately detect multiple parts that are expected to generate high oxygen concentrations. The accuracy is higher, and it can truly and accurately reflect the change of the oxygen concentration in the oxygen chamber. It is of great significance to improve the safety performance of the life chamber by reminding the operator in time to control the air flow in and out.
  • the purpose of the present invention is to provide a new multi-point monitoring device for oxygen concentration in the life cabin, which solves the problem of the traditional oxygen concentration monitoring device in the life cabin.
  • the change of temperature will cause a certain deviation in the output value of the electrical signal, resulting in The problem of inaccurate results has been solved, and the single-chamber oxygen analyzer has low accuracy for detection, and it is difficult to accurately reflect the change of oxygen concentration in the oxygen chamber.
  • a new multi-point monitoring device for oxygen concentration in the life cabin including a single-chip microcomputer, a display device, a printing device, a clock circuit, a pressure transmitter, a gas flow sensor, a first oxygen Sensor, second oxygen sensor, life chamber, first gas sample sampling valve, second gas sample sampling valve, first gas flow meter, second gas flow meter, oxygen analyzer, between the single-chip microcomputer and the first oxygen sensor electrical connection, the electrical connection between the single-chip microcomputer and the second oxygen sensor, the electrical connection between the single-chip microcomputer and the gas flow sensor, the electrical connection between the single-chip microcomputer and the pressure transmitter, and the electrical connection between the single-chip microcomputer and the display
  • the devices are electrically connected, the single-chip microcomputer is electrically connected to the printing device, the single-chip microcomputer is electrically connected to the clock circuit, and the first gas collection tube is connected between the life chamber and the oxygen analyzer.
  • the first gas sample sampling valve is set on the first gas collection tube, the first gas flowmeter is set on the first gas collection tube, the first oxygen sensor is set on the first gas collection tube, the The first oxygen sensor is electrically connected to the oxygen analyzer, and a second gas collection tube is connected between the life chamber and the oxygen analyzer,
  • the second gas sample sampling valve is set on the second gas collection tube, the second gas flowmeter is set on the second gas collection tube, the second oxygen sensor is set on the second gas collection tube, the The second oxygen sensor is electrically connected to the oxygen analyzer.
  • an amplifying circuit module and a temperature compensation module are electrically connected between the single-chip microcomputer and the first oxygen sensor.
  • temperature compensation can be performed to avoid excessively high or low temperature, causing The problem of poor accuracy of single-chip detection.
  • an amplifying circuit module and a temperature compensation module are electrically connected between the single-chip microcomputer and the second oxygen sensor.
  • temperature compensation can be performed to avoid excessively high or low temperature, causing The problem of poor accuracy of single-chip detection.
  • an amplifying circuit module is electrically connected between the single-chip microcomputer and the pressure transmitter, and the accuracy of signal reception of the single-chip microcomputer is ensured through the setting of the amplifying circuit module.
  • an amplifying circuit module is electrically connected between the single-chip microcomputer and the gas flow sensor, and the accuracy of signal reception by the single-chip microcomputer is ensured through the setting of the amplifying circuit module.
  • the interior of the single-chip microcomputer is electrically connected with an audible and visual alarm module, and through the setting of the audible and visual alarm module, audible and visual alarm processing can be performed to remind people of changes in oxygen concentration.
  • the pressure transmitter is connected to the sampling pipe between the life chamber and the sampling valve of the first gas sample sampling valve and the sampling valve of the second gas sample sampling valve.
  • the pressure in the tank is monitored in real time.
  • the electrical connection between the oxygen analyzer and the control host inside the life chamber can ensure that the control host will automatically start the ventilation function, and ensure that the oxygen volume fraction in the cabin is less than 23%, which is at a safe value.
  • a temperature sensor is placed in the gas chamber of the oxygen electrode for temperature tracking. Monitoring, therefore, using a precision temperature sensor in the oxygen electrode gas chamber for temperature acquisition will effectively compensate for the actual error. After compensation and correction by the single-chip microcomputer, accurate and stable results can be obtained, and the measurement range can be broadened.
  • the present invention uses a multi-chamber oxygen analyzer for separate detection, which has higher accuracy, can truly and accurately reflect the change of oxygen concentration in the oxygen chamber, and reminds the operator in time to control the amount of gas entering and leaving the chamber, which is beneficial to improving the life chamber.
  • the safety performance is very important.
  • Fig. 1 is the schematic circuit diagram of the multi-chamber oxygen analysis device of the present invention
  • Fig. 2 is a schematic diagram of the sampling pipeline of the present invention.
  • a new multi-point monitoring device for oxygen concentration in the life cabin including a single-chip microcomputer 1, a display device 2, a printing device 3, a clock circuit 4, a pressure transmitter 5, a gas flow sensor 6, a first Oxygen sensor 7, second oxygen sensor 8, life chamber 9, first gas sample sampling valve 10, second gas sample sampling valve 11, first gas flow meter 12, second gas flow meter 13, oxygen analyzer 14, single chip microcomputer 1 is electrically connected to the first oxygen sensor 7, and an amplifier circuit module and a temperature compensation module are electrically connected between the single-chip microcomputer 1 and the first oxygen sensor 7, and temperature compensation can be performed by setting the amplifier circuit module and the temperature compensation module , to avoid the problem that the temperature is too high or too low, resulting in poor detection accuracy of the single-chip microcomputer 1, the single-chip microcomputer 1 is electrically connected to the second oxygen sensor 8, and the amplification circuit module is electrically connected between the single-chip microcomputer 1 and the second oxygen sensor 8 And the temperature compensation module, through the setting of the amplifying circuit module and the temperature compensation module
  • the electrical connection between the single-chip microcomputer 1 and the gas flow sensor 6, the amplification circuit module is electrically connected between the single-chip microcomputer 1 and the gas flow sensor 6, through the setting of the amplification circuit module, to ensure the accuracy of signal reception of the single-chip microcomputer 1
  • the single-chip microcomputer 1 is electrically connected to the pressure transmitter 5, and the amplifier circuit module is electrically connected between the single-chip microcomputer 1 and the pressure transmitter 5. Through the setting of the amplifier circuit module, the accuracy of signal reception by the single-chip microcomputer 1 is ensured.
  • the pressure transmitter 5 is connected to the sampling pipe between the life chamber 9, the first gas sample sampling valve sampling valve 10, and the second gas sample sampling valve sampling valve 11.
  • the single-chip microcomputer 1 is electrically connected to the display device 2
  • the single-chip microcomputer 1 is electrically connected to the printing device 3
  • the single-chip microcomputer 1 is electrically connected to the clock circuit 4.
  • the inside of the single-chip microcomputer 1 The sound and light alarm module is electrically connected, and through the setting of the sound and light alarm module, sound and light alarm processing can be performed to remind people of changes in oxygen concentration.
  • a first gas collection pipe 15 is connected between the life chamber 9 and the oxygen analyzer 14, the first gas sample sampling valve 10 is arranged on the first gas collection pipe 15, and the first gas flowmeter 12 is arranged on the first gas collection pipe 15.
  • the first oxygen sensor 7 is arranged on the first gas collection tube 15, the first oxygen sensor 7 is electrically connected to the oxygen analyzer 14, and the life chamber 9 and the oxygen analyzer 14 are connected with
  • the second gas collection pipe 16 the second gas sample sampling valve 11 is arranged on the second gas collection pipe 16, the second gas flowmeter 13 is arranged on the second gas collection pipe 16, and the second oxygen sensor 8 is arranged on the second gas collection pipe 16.
  • the second oxygen sensor 8 is electrically connected to the oxygen analyzer 14, and the oxygen analyzer 14 is electrically connected to the control host inside the life chamber 9, which can ensure that the control host will automatically start the ventilation function, Ensure that the oxygen volume fraction in the cabin is less than 23%, which is a safe value.
  • the specific implementation process of the present invention is as follows: when it is necessary to use the oxygen concentration multi-point monitoring device in the novel life cabin, under the control of the single-chip microcomputer 1, the life cabin 9 and the first gas sample sampling valve 10, the second gas sample sampling
  • the pressure transmitter 5 is connected to the first gas collection pipe 15 and the second gas collection pipe 16 between the valves 11 to monitor the pressure in the life chamber 9 in real time.
  • the oxygen electrode and the gas flow sensor 6 in the oxygen analyzer 14 are sequentially connected in series at the gas outlets of the first gas flow meter 12 and the second gas flow meter 13 .
  • the oxygen analyzer 14 analyzes and judges the flow data of the sampled gas flowing through the oxygen electrode and the gas flow sensor 6 in order to determine whether the gas to be measured in the oxygen electrode is drawn from the cabin.
  • the real-time flow of sampled gas is used to determine whether the first gas sample sampling valve 10 and the second gas sample sampling valve 11 are open, so as to provide a basis for determining whether the oxygen analyzer 14 is working in a normal state of collecting and measuring oxygen.
  • the gas sample measured by the oxygen electrode in the oxygen analyzer 14 is a real-time gas sample from the cabin.
  • the gas sample data measured by the oxygen electrode is sent to the single-chip microcomputer 1, and after the temperature compensation module and the amplification circuit module, the temperature curve correction process outputs the oxygen volume fraction value, because the oxygen electrode’s determination of the oxygen volume fraction is affected by the temperature, so in A high-precision temperature sensor is placed in the gas chamber of the oxygen electrode to collect the temperature of the gas sample, so as to correct and compensate the oxygen volume fraction value to make the output value more accurate.
  • the gas collection tube passes through the first gas sample in turn.
  • the sampling valve 10 , the second gas sample sampling valve 11 , the first gas flowmeter 12 and the second gas flowmeter 13 are respectively sent to the oxygen electrode of the oxygen analyzer 14 .
  • the oxygen analyzer 14 continuously collects the oxygen content in the gas flowing through the oxygen electrode.
  • the oxygen analyzer 14 will send a signal to the control host of the life cabin 9. Under control, the ventilation function will be automatically activated to ensure that the oxygen volume fraction in the cabin is less than 23%, which is within a safe value.

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Abstract

A novel multi-point monitoring device for oxygen concentration in a life cabin, comprising a single chip microcomputer (1), a display device (2), a printing device (3), a clock circuit (4), a pressure transmitter (5), a gas flow sensor (6), a first oxygen sensor (7), a second oxygen sensor (8), a life cabin (9), a first gas sampling valve (10), a second gas sampling valve (11), a first gas flowmeter (12), a second gas flowmeter (13), and an oxygen analyzer (14). In a collection gas chamber, in order to compensate for the influence of the temperature change of gas to be measured on the oxygen permeation rate of an oxygen permeable membrane inside a sensor and cause the output drift of a diffusion current, a temperature sensor is placed in the gas chamber of an oxygen electrode for temperature tracking and monitoring, so that an actually generated error can be effectively compensated, an accurate and stable result can be obtained after the error is processed, compensated and corrected via the single chip microcomputer, and the measurement range is widened.

Description

一种新型生命舱舱内氧浓度多点监测装置A new type of multi-point monitoring device for oxygen concentration in the life cabin 技术领域technical field
本发明涉及生命舱氧浓度监测技术领域，具体为一种新型生命舱舱内氧浓度多点监测装置。 The invention relates to the technical field of oxygen concentration monitoring in a life cabin, in particular to a novel multi-point monitoring device for oxygen concentration in a life cabin.
背景技术Background technique
安全是生命舱治疗的患者最基本的心理需要。患者最基本的心理需要的这块基石当中生命舱氧浓度的监测便成了基石的重要组成部分。利用空气加压进行治疗的多人舱所发生的事故中,绝大数是由于舱内氧浓度过高,遇明火引起的,因此在操舱的过程中,要严密的观察和控制氧浓度。Safety is the most basic psychological need of patients treated by life capsule. The monitoring of the oxygen concentration in the life cabin has become an important part of the cornerstone of the most basic psychological needs of patients. Most of the accidents in the multi-person cabin that uses air pressurization for treatment are caused by the high oxygen concentration in the cabin and encountering an open fire. Therefore, the oxygen concentration must be strictly observed and controlled during the operation of the cabin.
技术问题technical problem
在生命舱系统中，对氧浓度的监测及控制占据着及其重要的地位，目前生命舱多采用单点监测，容易造成当漏氧位置远离采样口时，只有当所漏氧气弥散至采样口时，才能被检测到。由于舱内环境复杂，管路接点多，单点监测无法准确检测舱内氧浓度，而多点监测可在舱内设置多个采样终端，对多个预计会产生高氧浓度部位进行分别检测，准确性更高，能够真实、准确地反映出氧舱内氧浓度的变化情况,及时提醒操舱人员控制进出气量，对提高生命舱的安全性能有很重要的意义。In the life chamber system, the monitoring and control of oxygen concentration occupies an extremely important position. At present, the life chamber mostly adopts single-point monitoring, which is easy to cause when the oxygen leakage location is far away from the sampling port, only when the leaked oxygen diffuses to the sampling port , to be detected. Due to the complex environment in the cabin and many pipeline connections, single-point monitoring cannot accurately detect the oxygen concentration in the cabin, while multi-point monitoring can set up multiple sampling terminals in the cabin to separately detect multiple parts that are expected to generate high oxygen concentrations. The accuracy is higher, and it can truly and accurately reflect the change of the oxygen concentration in the oxygen chamber. It is of great significance to improve the safety performance of the life chamber by reminding the operator in time to control the air flow in and out.
技术解决方案technical solution
本发明的目的在于提供一种新型生命舱舱内氧浓度多点监测装置，解决了传统的生命舱舱内氧浓度监测装置，温度的变化会使电信号输出值产生一定的偏移，造成检测结果不准确的问题，并解决了单气室氧气分析仪进行检测，准确性低，难以准确地反映出氧舱内氧浓度的变化情况。The purpose of the present invention is to provide a new multi-point monitoring device for oxygen concentration in the life cabin, which solves the problem of the traditional oxygen concentration monitoring device in the life cabin. The change of temperature will cause a certain deviation in the output value of the electrical signal, resulting in The problem of inaccurate results has been solved, and the single-chamber oxygen analyzer has low accuracy for detection, and it is difficult to accurately reflect the change of oxygen concentration in the oxygen chamber.
为实现上述目的，本发明提供如下技术方案：一种新型生命舱舱内氧浓度多点监测装置，包括单片机、显示装置、打印装置、时钟电路、压力变送器、气体流量传感器、第一氧传感器、第二氧传感器、生命舱、第一气样采样阀、第二气样采样阀、第一气体流量计、第二气体流量计、氧气分析仪，所述单片机与第一氧传感器之间电性连接，所述单片机与第二氧传感器之间电性连接，所述单片机与气体流量传感器之间电性连接，所述单片机与压力变送器之间电性连接，所述单片机与显示装置之间电性连接，所述单片机与打印装置之间电性连接，所述单片机与时钟电路之间电性连接，所述生命舱与氧气分析仪之间连接有第一气体采集管， 所述第一气样采样阀设置于第一气体采集管上，所述第一气体流量计设置于第一气体采集管上，所述第一氧传感器设置于第一气体采集管上，所述第一氧传感器与氧气分析仪之间电性连接，所述生命舱与氧气分析仪之间连接有第二气体采集管， 所述第二气样采样阀设置于第二气体采集管上，所述第二气体流量计设置于第二气体采集管上，所述第二氧传感器设置于第二气体采集管上，所述第二氧传感器与氧气分析仪之间电性连接。In order to achieve the above object, the present invention provides the following technical solutions: a new multi-point monitoring device for oxygen concentration in the life cabin, including a single-chip microcomputer, a display device, a printing device, a clock circuit, a pressure transmitter, a gas flow sensor, a first oxygen Sensor, second oxygen sensor, life chamber, first gas sample sampling valve, second gas sample sampling valve, first gas flow meter, second gas flow meter, oxygen analyzer, between the single-chip microcomputer and the first oxygen sensor electrical connection, the electrical connection between the single-chip microcomputer and the second oxygen sensor, the electrical connection between the single-chip microcomputer and the gas flow sensor, the electrical connection between the single-chip microcomputer and the pressure transmitter, and the electrical connection between the single-chip microcomputer and the display The devices are electrically connected, the single-chip microcomputer is electrically connected to the printing device, the single-chip microcomputer is electrically connected to the clock circuit, and the first gas collection tube is connected between the life chamber and the oxygen analyzer. The first gas sample sampling valve is set on the first gas collection tube, the first gas flowmeter is set on the first gas collection tube, the first oxygen sensor is set on the first gas collection tube, the The first oxygen sensor is electrically connected to the oxygen analyzer, and a second gas collection tube is connected between the life chamber and the oxygen analyzer, The second gas sample sampling valve is set on the second gas collection tube, the second gas flowmeter is set on the second gas collection tube, the second oxygen sensor is set on the second gas collection tube, the The second oxygen sensor is electrically connected to the oxygen analyzer.
优选的，所述单片机与第一氧传感器之间电性连接有放大电路模块和温度补偿模块，通过放大电路模块、温度补偿模块的设置，可进行温度补偿，避免温度过高或过低，造成单片机检测的准确性差的问题。Preferably, an amplifying circuit module and a temperature compensation module are electrically connected between the single-chip microcomputer and the first oxygen sensor. Through the setting of the amplifying circuit module and the temperature compensation module, temperature compensation can be performed to avoid excessively high or low temperature, causing The problem of poor accuracy of single-chip detection.
优选的，所述单片机与第二氧传感器之间电性连接有放大电路模块和温度补偿模块，通过放大电路模块、温度补偿模块的设置，可进行温度补偿，避免温度过高或过低，造成单片机检测的准确性差的问题。Preferably, an amplifying circuit module and a temperature compensation module are electrically connected between the single-chip microcomputer and the second oxygen sensor. Through the setting of the amplifying circuit module and the temperature compensation module, temperature compensation can be performed to avoid excessively high or low temperature, causing The problem of poor accuracy of single-chip detection.
优选的，所述单片机与压力变送器之间电性连接有放大电路模块，通过放大电路模块的设置，以保证单片机信号接收的精确性。Preferably, an amplifying circuit module is electrically connected between the single-chip microcomputer and the pressure transmitter, and the accuracy of signal reception of the single-chip microcomputer is ensured through the setting of the amplifying circuit module.
优选的，所述单片机与气体流量传感器之间电性连接有放大电路模块，通过放大电路模块的设置，以保证单片机信号接收的精确性。Preferably, an amplifying circuit module is electrically connected between the single-chip microcomputer and the gas flow sensor, and the accuracy of signal reception by the single-chip microcomputer is ensured through the setting of the amplifying circuit module.
优选的，所述所述单片机的内部电性连接有声光报警模块，通过声光报警模块的设置，可进行声光报警处理，提醒人们氧气浓度变化。Preferably, the interior of the single-chip microcomputer is electrically connected with an audible and visual alarm module, and through the setting of the audible and visual alarm module, audible and visual alarm processing can be performed to remind people of changes in oxygen concentration.
优选的，所述压力变送器接入在生命舱和第一气样采样阀采样阀、第二气样采样阀采样阀之间的采样管上，通过压力变送器的设置，可对生命舱中的压力进行实时监测。Preferably, the pressure transmitter is connected to the sampling pipe between the life chamber and the sampling valve of the first gas sample sampling valve and the sampling valve of the second gas sample sampling valve. The pressure in the tank is monitored in real time.
优选的，所述氧气分析仪与生命舱内部的控制主机之间电性连接，可保证控制主机会自动启动换气功能，保证舱内氧体积分数小于23%，处于一个安全值。Preferably, the electrical connection between the oxygen analyzer and the control host inside the life chamber can ensure that the control host will automatically start the ventilation function, and ensure that the oxygen volume fraction in the cabin is less than 23%, which is at a safe value.
有益效果Beneficial effect
与现有技术相比，本发明的有益效果如下：Compared with the prior art, the beneficial effects of the present invention are as follows:
1、本发明在采集气室内为了弥补待测气体温度的变化对传感器内部透氧膜的透氧率产生影响，而致扩散电流输出漂移，在氧电极的气室内放置一个温度传感器用于温度跟踪监测，因此，在氧电极气室内采用精密的温度传感器进行温度采集，将有效地弥补实际产生的误差，经单片机处理补偿修正后，可得到精准稳定的结果，并拓宽测量范围。1. In the present invention, in order to make up for the change of the temperature of the gas to be measured in the gas collection chamber, which affects the oxygen permeability of the oxygen permeable membrane inside the sensor, resulting in the output drift of the diffusion current, a temperature sensor is placed in the gas chamber of the oxygen electrode for temperature tracking. Monitoring, therefore, using a precision temperature sensor in the oxygen electrode gas chamber for temperature acquisition will effectively compensate for the actual error. After compensation and correction by the single-chip microcomputer, accurate and stable results can be obtained, and the measurement range can be broadened.
2、本发明通过采用多气室氧气分析仪进行分别检测，准确性更高，能够真实、准确地反映出氧舱内氧浓度的变化情况,及时提醒操舱人员控制进出气量，对提高生命舱的安全性能有很重要的意义。2. The present invention uses a multi-chamber oxygen analyzer for separate detection, which has higher accuracy, can truly and accurately reflect the change of oxygen concentration in the oxygen chamber, and reminds the operator in time to control the amount of gas entering and leaving the chamber, which is beneficial to improving the life chamber. The safety performance is very important.
附图说明Description of drawings
图1为本发明的多气室氧气分析装置电路原理图；Fig. 1 is the schematic circuit diagram of the multi-chamber oxygen analysis device of the present invention;
图2为本发明的采样管路原理图。Fig. 2 is a schematic diagram of the sampling pipeline of the present invention.
图中：1、单片机；2、显示装置；3、打印装置；4、时钟电路；5、压力变送器；6、气体流量传感器；7、第一氧传感器；8、第二氧传感器；9、生命舱；10、第一气样采样阀；11、第二气样采样阀；12、第一气体流量计；13、第二气体流量计；14、氧气分析仪；15、第一气体采集管；16、第二气体采集管。In the figure: 1. SCM; 2. Display device; 3. Printing device; 4. Clock circuit; 5. Pressure transmitter; 6. Gas flow sensor; 7. First oxygen sensor; 8. Second oxygen sensor; 9 10. The first gas sample sampling valve; 11. The second gas sample sampling valve; 12. The first gas flowmeter; 13. The second gas flowmeter; 14. Oxygen analyzer; 15. The first gas collection Tube; 16, the second gas collection tube.
本发明的实施方式Embodiments of the present invention
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
请参阅图1-2，一种新型生命舱舱内氧浓度多点监测装置，包括单片机1、显示装置2、打印装置3、时钟电路4、压力变送器5、气体流量传感器6、第一氧传感器7、第二氧传感器8、生命舱9、第一气样采样阀10、第二气样采样阀11、第一气体流量计12、第二气体流量计13、氧气分析仪14，单片机1与第一氧传感器7之间电性连接，单片机1与第一氧传感器7之间电性连接有放大电路模块和温度补偿模块，通过放大电路模块、温度补偿模块的设置，可进行温度补偿，避免温度过高或过低，造成单片机1检测的准确性差的问题，单片机1与第二氧传感器8之间电性连接，单片机1与第二氧传感器8之间电性连接有放大电路模块和温度补偿模块，通过放大电路模块、温度补偿模块的设置，可进行温度补偿，避免温度过高或过低，造成单片机1检测的准确性差的问题。Please refer to Figure 1-2, a new multi-point monitoring device for oxygen concentration in the life cabin, including a single-chip microcomputer 1, a display device 2, a printing device 3, a clock circuit 4, a pressure transmitter 5, a gas flow sensor 6, a first Oxygen sensor 7, second oxygen sensor 8, life chamber 9, first gas sample sampling valve 10, second gas sample sampling valve 11, first gas flow meter 12, second gas flow meter 13, oxygen analyzer 14, single chip microcomputer 1 is electrically connected to the first oxygen sensor 7, and an amplifier circuit module and a temperature compensation module are electrically connected between the single-chip microcomputer 1 and the first oxygen sensor 7, and temperature compensation can be performed by setting the amplifier circuit module and the temperature compensation module , to avoid the problem that the temperature is too high or too low, resulting in poor detection accuracy of the single-chip microcomputer 1, the single-chip microcomputer 1 is electrically connected to the second oxygen sensor 8, and the amplification circuit module is electrically connected between the single-chip microcomputer 1 and the second oxygen sensor 8 And the temperature compensation module, through the setting of the amplifying circuit module and the temperature compensation module, temperature compensation can be performed to avoid the problem of poor detection accuracy of the single chip microcomputer 1 caused by the temperature being too high or too low.
请参阅图1，单片机1与气体流量传感器6之间电性连接，单片机1与气体流量传感器6之间电性连接有放大电路模块，通过放大电路模块的设置，以保证单片机1信号接收的精确性，单片机1与压力变送器5之间电性连接，单片机1与压力变送器5之间电性连接有放大电路模块，通过放大电路模块的设置，以保证单片机1信号接收的精确性，压力变送器5接入在生命舱9和第一气样采样阀采样阀10、第二气样采样阀采样阀11之间的采样管上，通过压力变送器5的设置，可对生命舱9中的压力进行实时监测，单片机1与显示装置2之间电性连接，单片机1与打印装置3之间电性连接，单片机1与时钟电路4之间电性连接，单片机1的内部电性连接有声光报警模块，通过声光报警模块的设置，可进行声光报警处理，提醒人们氧气浓度变化。Please refer to Fig. 1, the electrical connection between the single-chip microcomputer 1 and the gas flow sensor 6, the amplification circuit module is electrically connected between the single-chip microcomputer 1 and the gas flow sensor 6, through the setting of the amplification circuit module, to ensure the accuracy of signal reception of the single-chip microcomputer 1 The single-chip microcomputer 1 is electrically connected to the pressure transmitter 5, and the amplifier circuit module is electrically connected between the single-chip microcomputer 1 and the pressure transmitter 5. Through the setting of the amplifier circuit module, the accuracy of signal reception by the single-chip microcomputer 1 is ensured. , the pressure transmitter 5 is connected to the sampling pipe between the life chamber 9, the first gas sample sampling valve sampling valve 10, and the second gas sample sampling valve sampling valve 11. By setting the pressure transmitter 5, the The pressure in the life chamber 9 is monitored in real time, the single-chip microcomputer 1 is electrically connected to the display device 2, the single-chip microcomputer 1 is electrically connected to the printing device 3, and the single-chip microcomputer 1 is electrically connected to the clock circuit 4. The inside of the single-chip microcomputer 1 The sound and light alarm module is electrically connected, and through the setting of the sound and light alarm module, sound and light alarm processing can be performed to remind people of changes in oxygen concentration.
请参阅图1，生命舱9与氧气分析仪14之间连接有第一气体采集管15， 第一气样采样阀10设置于第一气体采集管15上，第一气体流量计12设置于第一气体采集管15上，第一氧传感器7设置于第一气体采集管15上，第一氧传感器7与氧气分析仪14之间电性连接，生命舱9与氧气分析仪14之间连接有第二气体采集管16， 第二气样采样阀11设置于第二气体采集管16上，第二气体流量计13设置于第二气体采集管16上，第二氧传感器8设置于第二气体采集管16上，第二氧传感器8与氧气分析仪14之间电性连接，氧气分析仪14与生命舱9内部的控制主机之间电性连接，可保证控制主机会自动启动换气功能，保证舱内氧体积分数小于23%，处于一个安全值。Please refer to Fig. 1, a first gas collection pipe 15 is connected between the life chamber 9 and the oxygen analyzer 14, the first gas sample sampling valve 10 is arranged on the first gas collection pipe 15, and the first gas flowmeter 12 is arranged on the first gas collection pipe 15. On a gas collection tube 15, the first oxygen sensor 7 is arranged on the first gas collection tube 15, the first oxygen sensor 7 is electrically connected to the oxygen analyzer 14, and the life chamber 9 and the oxygen analyzer 14 are connected with The second gas collection pipe 16, the second gas sample sampling valve 11 is arranged on the second gas collection pipe 16, the second gas flowmeter 13 is arranged on the second gas collection pipe 16, and the second oxygen sensor 8 is arranged on the second gas collection pipe 16. On the collection tube 16, the second oxygen sensor 8 is electrically connected to the oxygen analyzer 14, and the oxygen analyzer 14 is electrically connected to the control host inside the life chamber 9, which can ensure that the control host will automatically start the ventilation function, Ensure that the oxygen volume fraction in the cabin is less than 23%, which is a safe value.
本发明具体实施过程如下：当需要对新型生命舱舱内氧浓度多点监测装置进行使用时，在单片机1的控制下，在生命舱9和第一气样采样阀10、第二气样采样阀11之间的第一气体采集管15、第二气体采集管16上接入压力变送器5，对生命舱9中的压力进行实时监测。同时，在第一气体流量计12、第二气体流量计13的出气口依次串接氧气分析仪14中的氧电极和气体流量传感器6。此举是当舱内有压力时，氧气分析仪14对采样气体依次流过氧电极和气体流量传感器6的流量数据进行分析判断，以此来确定氧电极中的待测气体是否为舱内引出的实时流过的采样气体，以判断第一气样采样阀10、第二气样采样阀11是否打开，为氧气分析仪14工作在正常采集测氧状态提供判定基础。在确定第一气样采样阀10、第二气样采样阀11处于开启状态时，氧气分析仪14中的氧电极所测得的气样为来自舱内的实时气样。氧电极测得的气样数据送入单片机1，经温度补偿模块、放大电路模块的作用，温度曲线修正处理后输出氧体积分数值，因为氧电极对氧体积分数的测定受温度影响，所以在氧电极的气室中放置一个高精度的温度传感器，用于气样的温度采集，以此对氧体积分数值进行修正补偿，使输出值更为准确，气体采集管，依次经过第一气样采样阀10、第二气样采样阀11、第一气体流量计12、第二气体流量计13，分别送到氧气分析仪14的氧电极中。氧气分析仪14不断采集流经氧电极气体中的氧含量，若有异常则立即声光报警，同时氧气分析仪14会送出一个信号给生命舱9的控制主机，此时计算机主机若在全自动控制下，会自动启动换气功能，保证舱内氧体积分数小于23%，处于一个安全值内。The specific implementation process of the present invention is as follows: when it is necessary to use the oxygen concentration multi-point monitoring device in the novel life cabin, under the control of the single-chip microcomputer 1, the life cabin 9 and the first gas sample sampling valve 10, the second gas sample sampling The pressure transmitter 5 is connected to the first gas collection pipe 15 and the second gas collection pipe 16 between the valves 11 to monitor the pressure in the life chamber 9 in real time. At the same time, the oxygen electrode and the gas flow sensor 6 in the oxygen analyzer 14 are sequentially connected in series at the gas outlets of the first gas flow meter 12 and the second gas flow meter 13 . This is that when there is pressure in the cabin, the oxygen analyzer 14 analyzes and judges the flow data of the sampled gas flowing through the oxygen electrode and the gas flow sensor 6 in order to determine whether the gas to be measured in the oxygen electrode is drawn from the cabin. The real-time flow of sampled gas is used to determine whether the first gas sample sampling valve 10 and the second gas sample sampling valve 11 are open, so as to provide a basis for determining whether the oxygen analyzer 14 is working in a normal state of collecting and measuring oxygen. When it is determined that the first gas sample sampling valve 10 and the second gas sample sampling valve 11 are in an open state, the gas sample measured by the oxygen electrode in the oxygen analyzer 14 is a real-time gas sample from the cabin. The gas sample data measured by the oxygen electrode is sent to the single-chip microcomputer 1, and after the temperature compensation module and the amplification circuit module, the temperature curve correction process outputs the oxygen volume fraction value, because the oxygen electrode’s determination of the oxygen volume fraction is affected by the temperature, so in A high-precision temperature sensor is placed in the gas chamber of the oxygen electrode to collect the temperature of the gas sample, so as to correct and compensate the oxygen volume fraction value to make the output value more accurate. The gas collection tube passes through the first gas sample in turn. The sampling valve 10 , the second gas sample sampling valve 11 , the first gas flowmeter 12 and the second gas flowmeter 13 are respectively sent to the oxygen electrode of the oxygen analyzer 14 . The oxygen analyzer 14 continuously collects the oxygen content in the gas flowing through the oxygen electrode. If there is any abnormality, an audible and visual alarm will be issued immediately. At the same time, the oxygen analyzer 14 will send a signal to the control host of the life cabin 9. Under control, the ventilation function will be automatically activated to ensure that the oxygen volume fraction in the cabin is less than 23%, which is within a safe value.
工业实用性Industrial Applicability
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

  1. 一种新型生命舱舱内氧浓度多点监测装置，包括单片机（1）、显示装置（2）、打印装置（3）、时钟电路（4）、压力变送器（5）、气体流量传感器（6）、第一氧传感器（7）、第二氧传感器（8）、生命舱（9）、第一气样采样阀（10）、第二气样采样阀（11）、第一气体流量计（12）、第二气体流量计（13）、氧气分析仪（14），其特征在于：所述单片机（1）与第一氧传感器（7）之间电性连接，所述单片机（1）与第二氧传感器（8）之间电性连接，所述单片机（1）与气体流量传感器（6）之间电性连接，所述单片机（1）与压力变送器（5）之间电性连接，所述单片机（1）与显示装置（2）之间电性连接，所述单片机（1）与打印装置（3）之间电性连接，所述单片机（1）与时钟电路（4）之间电性连接，所述生命舱（9）与氧气分析仪（14）之间连接有第一气体采集管（15）， 所述第一气样采样阀（10）设置于第一气体采集管（15）上，所述第一气体流量计（12）设置于第一气体采集管（15）上，所述第一氧传感器（7）设置于第一气体采集管（15）上，所述第一氧传感器（7）与氧气分析仪（14）之间电性连接，所述生命舱（9）与氧气分析仪（14）之间连接有第二气体采集管（16）， 所述第二气样采样阀（11）设置于第二气体采集管（16）上，所述第二气体流量计（13）设置于第二气体采集管（16）上，所述第二氧传感器（8）设置于第二气体采集管上（16），所述第二氧传感器（8）与氧气分析仪（14）之间电性连接。A new multi-point monitoring device for oxygen concentration in a life cabin, including a single-chip microcomputer (1), a display device (2), a printing device (3), a clock circuit (4), a pressure transmitter (5), a gas flow sensor ( 6), the first oxygen sensor (7), the second oxygen sensor (8), the life chamber (9), the first gas sampling valve (10), the second gas sampling valve (11), the first gas flow meter (12), second gas flow meter (13), oxygen analyzer (14), characterized in that: the single-chip microcomputer (1) is electrically connected to the first oxygen sensor (7), and the single-chip microcomputer (1) It is electrically connected to the second oxygen sensor (8), the single-chip microcomputer (1) is electrically connected to the gas flow sensor (6), and the single-chip microcomputer (1) is electrically connected to the pressure transmitter (5). The single-chip microcomputer (1) is electrically connected to the display device (2), the single-chip microcomputer (1) is electrically connected to the printing device (3), and the single-chip microcomputer (1) is connected to the clock circuit (4 ), the first gas collection tube (15) is connected between the life chamber (9) and the oxygen analyzer (14), and the first gas sampling valve (10) is set at the first gas On the collection pipe (15), the first gas flowmeter (12) is arranged on the first gas collection pipe (15), the first oxygen sensor (7) is arranged on the first gas collection pipe (15), The first oxygen sensor (7) is electrically connected to the oxygen analyzer (14), and the second gas collection tube (16) is connected between the life chamber (9) and the oxygen analyzer (14). The second gas sample sampling valve (11) is set on the second gas collection tube (16), the second gas flow meter (13) is set on the second gas collection tube (16), and the second oxygen sensor (8) It is arranged on the second gas collection tube (16), and the second oxygen sensor (8) is electrically connected to the oxygen analyzer (14).
  2. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述单片机（1）与第一氧传感器（7）之间电性连接有放大电路模块和温度补偿模块。A new multi-point monitoring device for oxygen concentration in the life cabin according to claim 1, characterized in that: the single-chip microcomputer (1) and the first oxygen sensor (7) are electrically connected with an amplifying circuit module and temperature compensation module.
  3. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述单片机（7）与第二氧传感器（8）之间电性连接有放大电路模块和温度补偿模块。A new multi-point monitoring device for oxygen concentration in the life cabin according to claim 1, characterized in that: the single-chip microcomputer (7) and the second oxygen sensor (8) are electrically connected with an amplifying circuit module and temperature compensation module.
  4. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述单片机（1）与压力变送器（5）之间电性连接有放大电路模块。A new multi-point monitoring device for oxygen concentration in a life cabin according to claim 1, characterized in that: an amplifying circuit module is electrically connected between the single-chip microcomputer (1) and the pressure transmitter (5).
  5. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述单片机（1）与气体流量传感器（6）之间电性连接有放大电路模块。A new multi-point monitoring device for oxygen concentration in a life cabin according to claim 1, characterized in that: an amplifying circuit module is electrically connected between the single-chip microcomputer (1) and the gas flow sensor (6).
  6. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述所述单片机（1）的内部电性连接有声光报警模块。A new type of multi-point monitoring device for oxygen concentration in a life cabin according to claim 1, characterized in that: said single-chip microcomputer (1) is electrically connected to an audible and visual alarm module.
  7. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述压力变送器（5）接入在生命舱（1）和第一气样采样阀（10）、第二气样采样阀（11）之间的采样管上。A new multi-point monitoring device for oxygen concentration in the life chamber according to claim 1, characterized in that: the pressure transmitter (5) is connected to the life chamber (1) and the first gas sample sampling valve ( 10), on the sampling pipe between the second gas sample sampling valve (11).
  8. 根据权利要求1所述的一种新型生命舱舱内氧浓度多点监测装置，其特征在于：所述氧气分析仪（14）与生命舱（9）内部的控制主机之间电性连接。The novel multi-point monitoring device for oxygen concentration in the life chamber according to claim 1, characterized in that: the oxygen analyzer (14) is electrically connected to the control host inside the life chamber (9).
PCT/CN2022/087283 2022-02-22 2022-04-18 Novel multi-point monitoring device for oxygen concentration in life cabin WO2023159729A1 (en)

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CN111207967A (en) * 2020-01-17 2020-05-29 安徽建筑大学 Nitrogen-rich gas oxygen concentration detection device for airborne membrane separator
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