CN2540188Y - Small medical oxygenerator with oxygen concentration detection function - Google Patents

Small medical oxygenerator with oxygen concentration detection function Download PDF

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Publication number
CN2540188Y
CN2540188Y CN 02211265 CN02211265U CN2540188Y CN 2540188 Y CN2540188 Y CN 2540188Y CN 02211265 CN02211265 CN 02211265 CN 02211265 U CN02211265 U CN 02211265U CN 2540188 Y CN2540188 Y CN 2540188Y
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CN
China
Prior art keywords
oxygen
oxygen concentration
deafener
valve
nitrogen
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Expired - Fee Related
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CN 02211265
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Chinese (zh)
Inventor
朱笑波
邱笑
周兴远
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Shenyang Xinsongweierkang Technology Co., Ltd.
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Shenyang Institute of Automation of CAS
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Priority to CN 02211265 priority Critical patent/CN2540188Y/en
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Abstract

The utility model discloses a small medical oxygenerator with oxygen concentration testing function, comprising a filter, a control valve, a nitrogen and oxygen segregation apparatus, an oxygen storage tank, a pressure reducing valve, a flowmeter and a controlling unit, a small oil-free air compressor, a heat exchanger, an oxygen concentration monitoring device and an oxygen concentration indicator light, wherein, air source is connected with the small oil-free air compressor via the filter; one side of the nitrogen and oxygen segregation apparatus is connected with the heat exchanger via the control valve and the other side thereof is connected with the oxygen storage tank. The output of the oxygen storage tank is connected with the user side via the pressure reducing valve and the flowmeter; the oxygen concentration monitoring device is connected between the flowmeter and the user side in series and connected with the controlling unit; the nitrogen and oxygen segregation apparatus is extended to the output of the silencer; the controlling unit is electrically connected with the control valve as well as the oxygen concentration monitoring device and the oxygen concentration indicator light. The utility model has the advantage of wide area for oxygen testing, high accuracy, excellent repeatability, quick response time and long service life.

Description

Medical small-sized oxygenerator with oxygen concentration measuring ability
Technical field
This utility model relates to apparatus of oxygen supply, specifically a kind of medical small-sized oxygenerator with oxygen concentration measuring ability.
Background technology
Oxygen is the requirement that people live, and the oxygen supply mode of international medical field mainly contains two kinds of liquid oxygen and hyperbaric oxygen for a long time, in recent years because the develop rapidly of transformation absorption (PSA) technology, for having brought new opportunity to develop in this field.Small-sized health care oxygen machine has been come into daily life.Its only needs energized, instantaneously can isolate dustless, aseptic oxygen from air, and oxygen supply mode uniqueness has the advantage that liquid oxygen and hyperbaric oxygen hardly match such as flow is adjustable, easy to operate, system oxygen cost is low, safe and reliable etc.
From application point, when oxygenerator during near its useful life, when perhaps the fault of outside difficult observation appears in oxygenerator, the oxygen generation concentration of oxygenerator must reduce, but this moment, consumer can't learn whether the isolated oxygen of oxygenerator can also play medical care effect, still being continued use can influence patient's medical effect to oxygenerator when oxygen generation concentration is reduced to a certain degree, even healthy.This just requires oxygenerator to have the concentration measuring ability.But traditional electrochemistry oxygen concentration sensor is in the convenience of installing, the stability of measured value, and all there are some problems in aspects such as disposable calibration, and price is also very high, and its application on small-sized oxygenerator is very limited.
The utility model content
In order to overcome above deficiency, the purpose of this utility model provides a kind of medical small-sized oxygenerator with oxygen concentration measuring ability that adopts the zirconium oxide-oxygen concentration sensor can detect oxygen concentration in real time.
Technical solutions of the utility model are: comprise filter, control valve, nitrogen oxygen segregation apparatus, oxygen container, air relief valve, flow is taken into account control unit, also comprise small-sized oilless air compressor, heat exchanger, oxygen concentration monitor, oxygen concentration indicating lamp, wherein: air source links to each other with small-sized oilless air compressor by filter, described nitrogen oxygen segregation apparatus one end is connected with heat exchanger by control valve, the other end is to oxygen container, the oxygen container outfan is through air relief valve, effusion meter is to user side, oxygen concentration monitor is connected between effusion meter and the user side, and is electrically connected with control unit; The nitrogen oxygen segregation apparatus exhaust end is to the silencing means input, and control unit is electrically connected with control valve, and is electrically connected with oxygen concentration monitor and oxygen concentration indicating lamp.
The utlity model has following advantage:
1. the zirconium oxide-oxygen concentration sensor of this utility model employing is a kind of novel boundary electric current oxygen sensor.Characteristics such as have oxygen determination wide ranges, accuracy height, good reproducibility, response time is fast, the life-span is long, this pick off is reached advanced world standards, and can disposablely calibrate, and volume is little, and is easy for installation.
2. this utility model is monitored in real time to oxygen concentration.
3. the utlity model has segmentation oxygen concentration display lamp, intuitive display, when oxygen concentration is reduced to certain limit with audible alarm.
4. be with a wide range of applications.This utility model can be applied to hospital, can also move towards huge numbers of families as the family health care utensil.
Description of drawings
Fig. 1 is this utility model structural representation.
Fig. 2 A is an oxygen container structural representation among Fig. 1.
Fig. 2 B is Fig. 2 A right side view.
Fig. 3 A is a nitrogen separation apparatus structure sketch map among Fig. 1.
Fig. 3 B is the right side view of Fig. 3 A.
Fig. 4 is an oxygen concentration monitor structural representation among Fig. 1.
Fig. 5 is a silencing means structural representation among Fig. 1.
Fig. 6 A is a heat converter structure sketch map among Fig. 1.
Fig. 6 B is the side view of Fig. 6 A.
Fig. 7 is Fig. 1 middle filtrator structural representation.
Fig. 8 is a control unit part principle assumption diagram among Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is described in further detail.
As shown in Figure 1, this utility model is by filter 12, small-sized oilless air compressor 11, heat exchanger 10, control valve 8, nitrogen oxygen segregation apparatus 4, oxygen container 3, air relief valve 5, effusion meter 7, oxygen concentration monitor 6, control unit 2, oxygen concentration indicating lamp 1 is formed, air source links to each other with small-sized oilless air compressor 11 by filter 12, described nitrogen oxygen segregation apparatus 4 one ends are connected with heat exchanger 10 by control valve 8, the other end is to oxygen container 3, oxygen container 3 outfans are through air relief valve 5, effusion meter 7 is to user side, oxygen concentration monitor is connected between effusion meter 7 and the user side, and is electrically connected with control unit 2; To silencing means 9, control unit 2 is controlled control valves 8, and is electrically connected with oxygen concentration monitor 6 and oxygen concentration indicating lamp 1 from nitrogen oxygen segregation apparatus 4 separated nitrogen; Present embodiment control valve 8 adopts the pilot-operated type Pneumatic valve, described nitrogen oxygen segregation apparatus 4 is be connected in parallel structure, alternations of two molecular sieve tanks, by 4 alternations of control valve 8 control nitrogen oxygen segregation apparatus, when a nitrogen oxygen segregation apparatus 4 was the air inlet state, another nitrogen oxygen segregation apparatus 4 was an exhaust condition.
As Fig. 2 A, shown in the 2B, described oxygen container 3 comprises low head 31,38, tank body 36, check valve 32, the described low head 31 of going up, 38 are installed together by end socket nail 39 and tank body 36, at last low head 31,38 sidewalls and place, tank body 36 two ends are provided with sealing ring 37, check valve 32 is installed on the upper cover 31, in tank body 36, be provided with one and fill the core pipe 35 that filters with activated carbon 34, be provided with filter cloth 33 between activated carbon 34 and check valve 32, wherein filter cloth 33 is a non-woven fabrics, and check valve 32 is a Rubber washer, supports support structure with being positioned at its middle part places upper cover 31 porch; Oxygen container 3 functions are: will enter tank body 36 by check valve 32 from the oxygen of nitrogen oxygen segregation apparatus 4 and store;
As Fig. 3 A, shown in the 3B, described nitrogen oxygen segregation apparatus 4 is by last low head 41,48, sieve plate 46, molecular sieve 44, tank body 43 and spring 42 are formed, the described low head 41 of going up, 48 are installed together by end socket nail 49 and tank body 43, the sieve plate 46 that has filter cloth 45 is positioned at molecular sieve 44 two ends, in tank body 43, spring 42 is located between a upper cover and the sieve plate 46, the described low head 41 of going up, 48 sidewalls and tank body 43 installation places closely cooperate by sealing ring 47, described molecular sieve 44 adopts commercial 5A type product, its operation principle is: the air from compressor 11 forms certain pressure through the described tank body in the nitrogen oxygen segregation apparatus 4 43, nitrogen in molecular sieve 44 absorbed airs, isolate oxygen, to the upper cover 31 of oxygen container 3.
As shown in Figure 4, described oxygen concentration monitor 6 is by oxygen sensor cover 61, oxygen concentration sensor 62, screw 63, sealing ring 64, pressure cap 65, oxygen sensor seat 66 is formed, oxygen sensor cover 61 is installed together by screw 63 with oxygen sensor seat 66, oxygen sensor 62 is installed in the chamber that is made of oxygen sensor cover 61 and oxygen sensor seat 66 by pressure cap 65, pressure cap 65 is used for fixing oxygen concentration sensor 62, at oxygen sensor cover 61, be respectively equipped with air inlet on the oxygen sensor seat 66, the gas outlet, oxygen flows through this device by air inlet and gas outlet, oxygen concentration sensor 62 just can detect the content of oxygen in the device like this, by lead electrical signal transfer is arrived control unit 2.
As shown in Figure 5, described silencing means 9 is made up of deafener core pipe 91, plastics deafener 92, filter cotton 93, deafener cylindrical shell 94, plastics deafener 92 is fixed on the deafener core pipe 91, filter cotton 93 is located at 94 li of deafener cylindrical shells, deafener core pipe 91 and deafener cylindrical shell 94 are fastening structure, and the nitrogen that oxygen and nitrogen separation device 4 is discharged enters these silencing means 9 backs by deafener core pipe 91 and reduces noise by plastics deafener 92 and filter cotton 93.
Shown in Fig. 6 A, 6B, described heat exchanger 10 is made up of with joint 103 fin 101, copper pipe 102, copper pipe 102 is the folded formula structure of shaped form, be installed on the fin 101, wherein be connected with hot-air, hot-air is process from copper pipe 102, and the fin 101 that is fixed on the copper pipe 102 makes the hot-air cooling.
As shown in Figure 7, described filter 12 is provided with filter cloth 122 structures in the shell 121, and filter cloth 122 is supported by support member 123, is provided with aperture on support member 123, and shell 121 two ends are respectively equipped with the hole that is used for the air turnover.
As shown in Figure 8, the control unit 2 of described oxygenerator comprises that power supply, data acquisition, CPU control, valve drive, oxygen concentration sound and light alarm five parts constitute.Wherein:
Power pack mainly is made up of 220V alternating current input J10, transformator input J11, transformator outfan J7, the 1st rectifier bridge B1 and the 1st, 2 three terminal regulator U2, U11, wherein: constitute the two-way power supply by the 1st rectifier bridge B1, the 1st three terminal regulator U2 and the 2nd three terminal regulator U11; Its principle is: the 220V alternating current is connected to transformator input J11 through input J10, be connected to 1,3 feet of the 1st rectifier bridge B1 by transformator outfan J7 through the alternating current after the transformator blood pressure lowering, 2, the 4 foot output DCs of the 1st rectifier bridge B1, through stable direct current 12V voltage+12 of output after the 1st three terminal regulator U2 voltage stabilizing, as the power supply of control valve 8 drive parts, the 1st rectifier bridge B1 output DC is also exported the needs of another road power supply VCC for other parts through the 2nd three terminal regulator U11;
Part of data acquisition comprises AD converter TLC0832 U10, the 2nd rectifier bridge B2, the 3rd, the 4th three terminal regulator U6, U7, operational amplifier U5B, oxygen concentration sensor interface J8 constitutes, be connected to 1 of the 2nd rectifier bridge B2 through the alternating current after the transformator adjust blood pressure by transformator outfan J7,3 feet, 2 of the 2nd rectifier bridge, after the 4 feet output rectification is unidirectional current, the 3rd foot of the 3rd three terminal regulator U6 is a voltage input end, link to each other with the 2nd rectifier bridge B2, the 2nd foot is a voltage output end, to oxygen concentration sensor interface J8, the 1st foot links to each other with potentiometer W4, regulates the output voltage of the 3rd three terminal regulator U6 by the resistance of regulator potentiometer W4, DC voltage after the 3rd three terminal regulator U6 voltage stabilizing exports 3 of oxygen concentration sensor interface J8 to, 4 feet are for oxygen concentration sensor 62 provides heating voltage;
Input 1 foot of the 4th three terminal regulator U7 links to each other with the 1st rectifier bridge B1 of power pack, the potentiometer W5 that links to each other with 2 feet regulates the output voltage of the 4th three terminal regulator U7, and the DC voltage after the 4th three terminal regulator U7 voltage stabilizing provides running voltage by the 1st, 2 feet of oxygen concentration sensor interface J8 for oxygen concentration sensor 62;
Sampling resistor R23 is positioned at operational amplifier U5B positive terminal, and be connected to oxygen concentration sensor interface J8, by sampling resistor R23 the current signal of oxygen concentration sensor 62 is converted to voltage signal, the 3rd foot of input AD converter U10 is a digital signal with analog signal conversion after operational amplifier U5B amplifies.
CPU partly is the core of entire circuit plate, mainly constitute by microprocessor U1 and data storage U9, microprocessor U1 links to each other with AD converter U10 by the 3rd, 4,5 feet, the digital signal that collects is handled, microprocessor U1 also carries out timing scan to keyboard interface (J3), drives liquid crystal display by LCD interface J2;
The valve drive part is according to the break-make of the control signal decision control valve 8 of CPU, it mainly is made of the 1st, 2 audion T2, T3 and the 1st, 2 light emitting diode L1, L2, pilot valve interface J1, wherein: 1st, 2 light emitting diode L1, L2 are installed in the current collection level of the 1st, 2 audion T2, T3 respectively, 1st, the ground level of 2 audion T2, T3 links to each other with 1,2 feet of microprocessor respectively, determine the on off state of two audions by the height of these two pin level, thereby control the electriferous state of pilot valve, reach the purpose of final control control valve 8.
Oxygen concentration sound and light alarm part is by light-emitting diodes interface tube J4,3rd, 4,5,6 audion T1, T6, T7, T8, and buzzer S1 constitutes, wherein: the 3rd audion T1 links to each other with 14 feet of microprocessor U1, the break-make of signal controlling buzzer S1 by microprocessor U1, buzzer S1 is in the 3rd audion T1 current collection level; 4th, 5,6 audion T6, T7, T8 link to each other with 8,6,7 feet of microprocessor U1 respectively, and its control principle is same as described above.
Microprocessor U1 described in the utility model adopts 89C52, memorizer U9 adopts X24C45, AD converter U10 adopts TLC0832, all audions all adopt 8050, the 1st three terminal regulator adopts 7812, the 2 three terminal regulators to adopt 7805, the 3 three terminal regulators to adopt LM317T, the 4th three terminal regulator adopts LM317H
Oxygen concentration sensor 62 described in the utility model adopts CY-16N;
Air relief valve 5 adopts AR2000; Control valve 8 adopts the pilot-operated type Pneumatic valve; Small-sized oil-free air compressor group 11 adopts ZW370A6.
Comparative example
The characteristics of the distributed oxygen supply of this utility model are to adopt zirconium oxide-oxygen concentration sensing to monitor oxygenerator output concentration of oxygen in real time, adopt the scope of red, yellow, green three kinds of display lamps indication oxygen concentration, when machine breaks down or reach life expectancy, red led was bright when oxygen generation concentration was lower than set point, and the buzzer alarm of sounding guarantees the safe handling of user.This sensor precision is higher, and stable difficult drift, relatively is suitable for the use of oxygenerator.All no this item functions of oxygenerator of present other manufacturer production.

Claims (7)

1. medical small-sized oxygenerator with oxygen concentration measuring ability, comprise filter (12), control valve (8), nitrogen oxygen segregation apparatus (4), oxygen container (3), air relief valve (5), effusion meter (7) and control unit (2), it is characterized in that: also comprise small-sized oilless air compressor (11), heat exchanger (10), oxygen concentration monitor (6), oxygen concentration indicating lamp (1), wherein: air source links to each other with small-sized oilless air compressor (11) by filter (12), described nitrogen oxygen segregation apparatus (4) one ends are connected with heat exchanger (10) by control valve (8), the other end is to oxygen container (3), oxygen container (3) outfan is through air relief valve (5), effusion meter (7) is to user side, oxygen concentration monitor (6) is connected between effusion meter (7) and the user side, and is electrically connected with control unit (2); Nitrogen oxygen segregation apparatus (4) exhaust end is to silencing means (9) input, and control unit (2) is electrically connected with control valve (8), and is electrically connected with oxygen concentration monitor (6) and oxygen concentration indicating lamp (1).
2. according to the described medical small-sized oxygenerator of claim 1 with oxygen concentration measuring ability, it is characterized in that: described oxygen concentration monitor (6) is by oxygen sensor cover (61), oxygen concentration sensor (62), sealing ring (64), pressure cap (65), oxygen sensor seat (66) is formed, oxygen sensor cover (61) is installed together with oxygen sensor seat (66), oxygen concentration sensor (62) is installed in the chamber that is made of oxygen sensor cover (61) and oxygen sensor seat (66) by pressure cap (65), in oxygen sensor cover (61), the oxygen sensor seat is respectively equipped with air inlet on (66), the gas outlet, oxygen concentration sensor (62) is electrically connected with control unit (2) by lead.
3. according to the described medical small-sized oxygenerator of claim 1 with oxygen concentration measuring ability, it is characterized in that: described silencing means (9) is made up of deafener core pipe (91), plastics deafener (92), filter cotton (93), deafener cylindrical shell (94), plastics deafener (92) is fixed on the deafener core pipe (91), filter cotton (93) is located at deafener cylindrical shell (94) lining, deafener core pipe (91) and deafener cylindrical shell (94) are fastening structure, are connected with oxygen and nitrogen separation device (4).
4. according to the described medical small-sized oxygenerator of claim 1 with oxygen concentration measuring ability, it is characterized in that: described heat exchanger (10) is made up of with joint (103) fin (101), copper pipe (102), copper pipe (102) is the folded formula structure of shaped form, be installed on the fin (101), wherein be connected with hot-air.
5. according to the described medical small-sized oxygenerator of claim 1 with oxygen concentration measuring ability, it is characterized in that: described control unit (2) is made up of power supply, data acquisition, CPU, valve driving, oxygen concentration sound and light alarm six parts, and wherein: power pack constitutes the two-way power supply by the 1st rectifier bridge (B1), the 1st, 2 three terminal regulators (U2, U11); Alternating current is connected to by transformator outfan (J7) that the stable direct current 12V voltage of output is the power supply of control valve (8) drive part after the 1st rectifier bridge (B1), the 1st three terminal regulator (U2) voltage stabilizing, and going out signal with the 1st rectifier bridge (B1) is that the 2nd three terminal regulator (U11) of input signal is output as control unit (2) other parts;
Part of data acquisition is by AD converter (U10), the 2nd rectifier bridge (B2), 3rd, the 4th three terminal regulator (U6, U7), operational amplifier (U5B) and oxygen concentration sensor interface (J8) constitute, the 2nd rectifier bridge (B2) input is connected with transformator outfan (J7), unidirectional current to the 3 three terminal regulators (U6) voltage input end after the output rectification, the 3rd three terminal regulator (U6) voltage output end is to oxygen concentration sensor interface (J8), and its 1st foot links to each other with potentiometer (W4); The input of the 4th three terminal regulator (U7) links to each other with the 1st rectifier bridge (B1) of power pack, and its 2 foot links to each other with potentiometer (W5), the 4th three terminal regulator (U7) output termination oxygen concentration sensor interface (J8); Sampling resistor (R23) is positioned at operational amplifier (U5B) positive terminal, and is connected to oxygen concentration sensor interface (J8), connects AD converter (U10) behind operational amplifier (U5B);
The CPU part mainly is made of microprocessor (U1) and data storage (U9), microprocessor (U1) links to each other with AD converter (U10), be connected with data storage (U9) in addition, also keyboard interface (J3) carried out timing scan, and connect liquid crystal display by LCD interface (J2);
The valve drive part mainly is made of the 1st, 2 audions (T2, T3) and the 1st, 2 light emitting diodes (L1, L2), pilot valve interface (J1), wherein: 1st, 2 light emitting diodes (L1, L2) are installed in the current collection level of the 1st, 2 audions (T2, T3) respectively, 1st, the ground level of 2 audions (T2, T3) links to each other with microprocessor (U1) respectively, thus the electriferous state of control pilot valve;
Oxygen concentration sound and light alarm part is by light-emitting diodes interface tube (J4), 3rd, 4,5,6 audions (T1, T6, T7, T8), and buzzer (S1) constitutes, wherein: the 3rd audion (T1) links to each other with microprocessor U1, the break-make of the signal controlling buzzer (S1) by microprocessor U1, buzzer (S1) is in the 3rd audion (T1) current collection level; 4th, 5,6 audions (T6, T7, T8) link to each other with microprocessor (U1) respectively.
6. according to the described medical small-sized oxygenerator with oxygen concentration measuring ability of claim 1, it is characterized in that: described control valve (8) adopts the pilot-operated type Pneumatic valve.
7. according to the described medical small-sized oxygenerator with oxygen concentration measuring ability of claim 1, it is characterized in that: described nitrogen oxygen segregation apparatus (4) is two molecular sieve tanks structures that are connected in parallel.
CN 02211265 2002-04-17 2002-04-17 Small medical oxygenerator with oxygen concentration detection function Expired - Fee Related CN2540188Y (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101246139B (en) * 2008-03-21 2011-08-10 绵阳开元磁性材料有限公司 Zirconium oxide analyzer
WO2012045264A1 (en) * 2010-10-09 2012-04-12 深圳迈瑞生物医疗电子股份有限公司 Oxygen battery base assembly, oxygen battery assembly and anesthesia machine
CN103072948A (en) * 2013-01-27 2013-05-01 江苏江航医疗设备有限公司 Aerospace oxygenerator
CN103458952A (en) * 2011-03-25 2013-12-18 藤仓橡胶工业株式会社 Oxygen tank unit for oxygen-concentrating device
CN103663381A (en) * 2013-12-12 2014-03-26 科迈(常州)电子有限公司 Medical oxygen generator
CN103723684A (en) * 2013-12-13 2014-04-16 科迈(常州)电子有限公司 Oxygen generator with cyclic filtration function
CN104392012A (en) * 2014-11-28 2015-03-04 浙江善时生物药械(商丘)有限公司 Method for recording and saving oxygen generator running data
CN104399163A (en) * 2014-12-01 2015-03-11 北京神鹿腾飞医疗科技有限公司 Safe double-air-source mixed oxygen instrument and oxygen supply method thereof
CN104707228A (en) * 2015-03-02 2015-06-17 深圳市科曼医疗设备有限公司 Transnasal high-flow-capacity oxygen therapy pressure monitoring system and method
CN105435352A (en) * 2007-05-07 2016-03-30 帝人制药株式会社 Oxygen concentrator
CN105967147A (en) * 2016-07-08 2016-09-28 上海东方压缩机厂有限公司 Device for preparing and collecting oxygen
CN105984849A (en) * 2016-07-08 2016-10-05 上海东方压缩机厂有限公司 Oxygen generator
CN106198116A (en) * 2015-05-06 2016-12-07 王勤 A kind of medical oxygen concentration sampling equipment
CN106647509A (en) * 2016-08-29 2017-05-10 江苏师范大学 Photo-catalytic water splitting hydrogen production device including air pressure sensing module and solenoid valve driving module and photo-catalyst application system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105435352A (en) * 2007-05-07 2016-03-30 帝人制药株式会社 Oxygen concentrator
CN101246139B (en) * 2008-03-21 2011-08-10 绵阳开元磁性材料有限公司 Zirconium oxide analyzer
WO2012045264A1 (en) * 2010-10-09 2012-04-12 深圳迈瑞生物医疗电子股份有限公司 Oxygen battery base assembly, oxygen battery assembly and anesthesia machine
CN103458952A (en) * 2011-03-25 2013-12-18 藤仓橡胶工业株式会社 Oxygen tank unit for oxygen-concentrating device
CN103072948A (en) * 2013-01-27 2013-05-01 江苏江航医疗设备有限公司 Aerospace oxygenerator
CN103663381A (en) * 2013-12-12 2014-03-26 科迈(常州)电子有限公司 Medical oxygen generator
CN103723684B (en) * 2013-12-13 2015-05-06 科迈(常州)电子有限公司 Oxygen generator with cyclic filtration function
CN103723684A (en) * 2013-12-13 2014-04-16 科迈(常州)电子有限公司 Oxygen generator with cyclic filtration function
CN104392012A (en) * 2014-11-28 2015-03-04 浙江善时生物药械(商丘)有限公司 Method for recording and saving oxygen generator running data
CN104399163A (en) * 2014-12-01 2015-03-11 北京神鹿腾飞医疗科技有限公司 Safe double-air-source mixed oxygen instrument and oxygen supply method thereof
CN104707228A (en) * 2015-03-02 2015-06-17 深圳市科曼医疗设备有限公司 Transnasal high-flow-capacity oxygen therapy pressure monitoring system and method
CN106198116A (en) * 2015-05-06 2016-12-07 王勤 A kind of medical oxygen concentration sampling equipment
CN105967147A (en) * 2016-07-08 2016-09-28 上海东方压缩机厂有限公司 Device for preparing and collecting oxygen
CN105984849A (en) * 2016-07-08 2016-10-05 上海东方压缩机厂有限公司 Oxygen generator
CN106647509A (en) * 2016-08-29 2017-05-10 江苏师范大学 Photo-catalytic water splitting hydrogen production device including air pressure sensing module and solenoid valve driving module and photo-catalyst application system
CN106647509B (en) * 2016-08-29 2019-04-26 江苏师范大学 Include air pressure sensing module and the photocatalysis solution water device for producing hydrogen of solenoid valve driving module, photocatalyst catalyst application system

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Owner name: SHENYANG XINSONG WEIERKANG SCIENCE CO., LTD.

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