CN104807665A - Humidifying capability testing device for humidifier - Google Patents
Humidifying capability testing device for humidifier Download PDFInfo
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- CN104807665A CN104807665A CN201510248962.3A CN201510248962A CN104807665A CN 104807665 A CN104807665 A CN 104807665A CN 201510248962 A CN201510248962 A CN 201510248962A CN 104807665 A CN104807665 A CN 104807665A
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- temperature
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- box
- humidification machine
- baffle
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Abstract
The invention relates to a humidifying capability testing device for a humidifier. The device comprises an environment temperature regulating box, wherein the environment temperature regulating box is internally provided with a gas temperature buffer box, a temperature controller, a temperature measuring probe, an air compressor, an electronic balance, an airflow regulating valve, a pitometer and a humidifier to be measured. The testing is carried out in the environment temperature regulating box, and the gas temperature is regulated between 5 DEG C and 30 DEG C by the environment temperature regulating box; the gas temperature can be adjusted between 18 DEG C and 30 DEG C by the gas temperature buffer box; the airflow regulating valve can be used for adjusting the flow speed within a range of 0L/min to 30L/min; after a certain time of testing, the mass differences displayed on the electronic balance before and after testing are respectively recorded, the average temperature and the gas volume of gas of the humidifier are inputted, and finally the humidifying capability of the humidifier is calculated. According to the testing device disclosed by the invention, the testing problem that the environment temperature, the input gas temperature and the input gas flow need to be adjusted in a large scale in the testing process of the humidifier is solved; in addition, the humidifying capability testing device is high in integration and simple and convenient to operate.
Description
Technical field
The invention belongs to medicine equipment detection field, be specifically related to a kind of humidification machine humidifying aptitude tests device, be mainly used in testing the humidifying ability of humidification machine.
Background technology
Humidification machine is medicine equipment that patient's suction gas moisturizes in division of respiratory disease.Be mainly used in keeping the respiratory tract of patient moistening, reduce patient when Long-Time Service lung ventilator or respiratory tract insufficiency, the damage caused due to respiratory tract drying.
Humidifying ability investigates the core technology index of such medicine equipment quality.The test of this index need provide different environment temperature, humidification machine intake air temperature and input gas flow rates, and test out humidification machine quality before and after test change, by the volume of gas and input gas medial temperature.The difficult point of this test is providing of test condition, owing to needing the humidifying ability of testing some extreme environments, as: environment temperature 5 DEG C, input gas temperature 30 DEG C, input gas flow rate 30L/min.Because air compressor output gas temperature is almost identical with environment temperature, therefore laboratory adopts the equipment of an extra band gas-heated pipe to improve intake air temperature usually, but the reduction that cannot realize input gas temperature, and the control of environment temperature relies on room conditioning, governing speed is slow.Simultaneously when requiring input gas flow rate larger, the input gas temperature adopting this kind of mode to heat is difficult to keep stable, and this both increases the uncertainty of test.
Therefore can environment temperature, intake air temperature to be provided to stablize respectively controlled simultaneously in development, and maximum output gas flow rate is the test condition of 30L/min, and the checkout equipment testing out humidification machine humidifying ability becomes the problem that solution is needed in this field badly.
Summary of the invention
The present invention seeks to the problem that will solve existing humidification machine test condition instability, a kind of reasonable in design, easy to use, testing result humidification machine humidifying aptitude tests device are accurately provided.
Humidification machine humidifying aptitude tests device provided by the invention comprises environment temperature regulating box (1), is provided with gas temperature baffle-box (3), temperature controller (4), temperature probe (6), air compressor (7), electronic balance (8), gas outlet (9), barometric damper and velocimeter (10) and humidification machine to be measured (12) in environment temperature regulating box (1); Gas temperature baffle-box (3) sidewall is provided with gas input port (2) and gas outlet (16), in gas temperature baffle-box (3), is provided with temperature control thermal detector (5) and heat interchanger (11); Refrigeration compressor (13), well heater (14) and temperature sensor (15) is provided with in heat interchanger (11); Air compressor (7) enters in gas temperature baffle-box (3) by gas piping through gas input port (2), gas temperature baffle-box (3) gas of discharging is through gas outlet (16) and enter humidification machine to be measured (12) by the gas piping being provided with barometric damper and velocimeter (10), humidification machine to be measured (12) is placed on electronic balance (8), and the gas outlet (9) that the gas that humidification machine to be measured (12) is discharged eventually passes on environment temperature regulating box (1) sidewall is discharged.
Described environment temperature regulating box is built with temperature controller and temperature probe, the environment temperature saved for providing fast tunable, by temperature controller (4) and temperature probe (6), internal temperature is regulated between 5 DEG C ~ 30 DEG C, temperature fluctuation is ± 0.3 DEG C, and temperature rises and decline rate is 0.3 DEG C ~ 1 DEG C per minute.SML-2 type climatic chamber specifically can be adopted to realize.
Input gas temperature is adjusted to 18 DEG C ~ 30 DEG C by temperature control thermal detector (5) and heat interchanger (11) by described gas temperature baffle-box, maximum adjustable gas flow is 30L/min, by the medial temperature of gas within a period of time in temperature control thermal detector (5) show case.
The heat interchanger that air compressor will pass through after the gas boosting in environment temperature regulating box in gas input port input gas temperature baffle-box, make input gas carry out heat interchange by refrigeration compressor and well heater in heat interchanger, and by temperature control thermal detector, control and measurement is carried out to the gas temperature be finally input in humidification machine to be measured.
Described barometric damper and the function of velocimeter are: one is the gas flow rate regulating input humidification machine to be measured, provides suitable test condition; Two is the mean flow raties testing out gas in test process, and is calculated in test process the gas volume flowing through humidification machine by V=ν × t, wherein, and V---gas volume, ν---gas flow rate, t---test duration.
Described electronic balance can weigh respectively humidification machine to be measured before testing after quality, and calculate the biodiversity difference in experimentation.
The humidifying ability of humidification machine under fc-specific test FC condition is gone out finally by following formulae discovery:
N
bTPS---humidification system fan-out capability
M
2---the quality of water used, unit is gram
T
in---enter the gas temperature of humidification machine, unit is DEG C.
Advantage of the present invention and beneficial effect:
1, the adjustment respectively of environment temperature and input gas temperature is achieved, the problem that when solving test, desired gas temperature may deviate from mutually with environment temperature.
2, the gas delivery tube in heat interchanger adopts reciprocating design, increase the contact area with compressor and well heater, improve variable temperature and export the flow velocity of gas, the cushion space simultaneously after transducer can make gas temperature evenly, improve the stability of input humidification machine gas temperature.
3, modular designs is adopted, compact conformation.Environment temperature, input gas temperature and input gas flow are easy to adjust, and test data can directly obtain.Ensure that the high efficiency of test.
Accompanying drawing explanation
Fig. 1 is the structural representation of humidification machine humidifying aptitude tests device of the present invention.
Fig. 2 is the inner structure schematic diagram of gas temperature baffle-box.
Fig. 3 is the overall flow figure of test.
In figure: environment temperature regulating box (1), gas input port (2), gas temperature baffle-box (3), temperature controller (4), temperature control thermal detector (5), temperature probe (6), air compressor (7), electronic balance (8), gas outlet (9), barometric damper and velocimeter (10), heat interchanger (11), humidification machine to be measured (12), refrigeration compressor (13), well heater (14), temperature sensor (15), gas outlet (16).
Embodiment
Embodiment 1:
As shown in Figure 1, proving installation comprises environment temperature regulating box (1), is provided with gas temperature baffle-box (3), temperature controller (4), temperature probe (6), air compressor (7), electronic balance (8), gas outlet (9), barometric damper and velocimeter (10) and humidification machine to be measured (12) in environment temperature regulating box (1); Gas temperature baffle-box (3) sidewall is provided with gas input port (2) and gas outlet (16), in gas temperature baffle-box (3), is provided with temperature control thermal detector (5) and heat interchanger (11); Refrigeration compressor (13), well heater (14) and temperature sensor (15) is provided with in heat interchanger (11); Air compressor (7) enters in gas temperature baffle-box (3) by gas piping through gas input port (2), gas temperature baffle-box (3) gas of discharging is through gas outlet (16) and enter humidification machine to be measured (12) by the gas piping being provided with barometric damper and velocimeter (10), humidification machine to be measured (12) is placed on electronic balance (8), and the gas outlet (9) that the gas that humidification machine to be measured (12) is discharged eventually passes on environment temperature regulating box (1) sidewall is discharged.
Whole test is carried out in environment temperature regulating box, and gas temperature wherein can regulate by environment temperature regulating box between 5 DEG C ~ 30 DEG C; Gas wherein enters gas temperature baffle-box by gas input port after air compressor pressurization, and the temperature of gas can be adjusted to 18 DEG C ~ 30 DEG C by gas temperature baffle-box; Afterwards by regulating barometric damper to be input in humidifier to be measured by the gas of flow velocity within the scope of 0L/min ~ 30L/min; After the test of certain hour, record the quality difference m before and after test, electronic balance shown
2=m
0-m
1, by inputting the medial temperature T of humidification machine gas in temperature control thermal detector (5) the read test process in gas temperature baffle-box
in, take into account the test duration by flow velocity and record gas volume V by humidification machine in test process.
M
2---the quality of water used, unit is gram
M
1---the quality of water during off-test, unit is gram
M
0---the quality of water during on-test, unit is gram
As shown in Figure 2, the gas piping in gas temperature baffle-box (3) is reciprocating arrangement to gas temperature baffle-box (3) inner structure, increases the area of heat interchange.Gas enters heat interchanger (11) from air intake opening (2), exports gas temperature baffle-box, enter humidification machine to be measured from gas outlet (16).
When raising gas temperature, by regulating temperature control thermal detector (5), control heater (14) is started working, and makes the gas temperature in pipeline keep stable through the feedback of temperature sensor (15).
When reducing gas temperature, by regulating temperature control thermal detector (5), controlling refrigeration compressor (13) and starting working, and make the gas temperature in pipeline keep stable through the feedback of temperature sensor (15).
As shown in Figure 3, concrete steps are the flow process of test:
Step one, the temperature arranging environment temperature regulating box (1) are the minimum environment temperature that humidification machine nominal can work, the temperature arranging gas temperature baffle-box (3) is the minimum intake air temperature of humidification machine nominal, regulates barometric damper and velocimeter (10) to make the gas flow rate of input humidification machine to be measured be the minimum working flow rate of its nominal.
Step 2, after environment temperature, input gas temperature and gas flow rate are stable, inject appropriate water by humidification machine to be measured (12), and be positioned on electronic balance (8) and weigh initial mass m
0, start test.
Step 3, after the water in humidification machine to be measured have dropped half, stop test, and the quality of record now humidification machine to be measured is m
1.Record gas volume V used and input gas medial temperature T
in.Calculate the humidifying ability of humidification machine with this understanding.
Exist respectively afterwards:
Minimum environment temperature, minimum intake air temperature and the highest induction air flow ratio;
Minimum environment temperature, the highest intake air temperature and minimum induction air flow ratio;
Minimum environment temperature, the highest intake air temperature and the highest induction air flow ratio;
Most high ambient temperature, minimum intake air temperature and minimum induction air flow ratio;
Most high ambient temperature, minimum intake air temperature and the highest induction air flow ratio;
Most high ambient temperature, the highest intake air temperature and minimum induction air flow ratio;
Most high ambient temperature, the highest intake air temperature and the highest induction air flow ratio;
One ~ step 3 is respectively repeated steps, so that the humidifying ability of comprehensive assessment humidification machine under all conditions under condition.
Technology contents of the present invention and technical characterstic disclose as above, but those of ordinary skill in the art still may make all replacement machine maintenance decorations not deviating from spirit of the present invention based on announcement of the present invention.Therefore protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise the various replacement machine maintenance of the present invention decorations that do not deviate from, and present patent application claims not contained.
Claims (5)
1. a humidification machine humidifying aptitude tests device, it is characterized in that this device comprises environment temperature regulating box (1), in environment temperature regulating box (1), be provided with gas temperature baffle-box (3), temperature controller (4), temperature probe (6), air compressor (7), electronic balance (8), gas outlet (9), barometric damper and velocimeter (10) and humidification machine to be measured (12); Gas temperature baffle-box (3) sidewall is provided with gas input port (2) and gas outlet (16), in gas temperature baffle-box (3), is provided with temperature control thermal detector (5) and heat interchanger (11); Refrigeration compressor (13), well heater (14) and temperature sensor (15) is provided with in heat interchanger (11); Air compressor (7) enters in gas temperature baffle-box (3) by gas piping through gas input port (2), gas temperature baffle-box (3) gas of discharging is through gas outlet (16) and enter humidification machine to be measured (12) by the gas piping being provided with barometric damper and velocimeter (10), humidification machine to be measured (12) is placed on electronic balance (8), and the gas outlet (9) that the gas that humidification machine to be measured (12) is discharged eventually passes on environment temperature regulating box (1) sidewall is discharged.
2. humidification machine humidifying aptitude tests device according to claim 1, it is characterized in that, internal temperature is regulated by temperature controller (4) and temperature probe (6) by described environment temperature regulating box (1) between 5 DEG C ~ 30 DEG C, temperature fluctuation is ± 0.3 DEG C, and temperature rises and decline rate is 0.3 DEG C ~ 1 DEG C per minute.
3. humidification machine humidifying aptitude tests device according to claim 1, it is characterized in that, input gas temperature is adjusted to 18 DEG C ~ 30 DEG C by temperature control thermal detector (5) and heat interchanger (11) by described gas temperature baffle-box (3), maximum adjustable gas flow is 30L/min, by the medial temperature of gas within a period of time in temperature control thermal detector (5) show case.
4. humidification machine humidifying aptitude tests device according to claim 1, is characterized in that, described barometric damper and velocimeter (10) can regulate the gas flow of input humidification machine to be measured, and can show the average discharge in a period of time.
5. humidification machine humidifying aptitude tests device according to claim 1, is characterized in that, the model of described electronic balance (8) is WT200001X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248962.3A CN104807665B (en) | 2015-05-15 | 2015-05-15 | Humidifying capability testing device for humidifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248962.3A CN104807665B (en) | 2015-05-15 | 2015-05-15 | Humidifying capability testing device for humidifier |
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| Publication Number | Publication Date |
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| CN104807665A true CN104807665A (en) | 2015-07-29 |
| CN104807665B CN104807665B (en) | 2017-04-26 |
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| CN201510248962.3A Expired - Fee Related CN104807665B (en) | 2015-05-15 | 2015-05-15 | Humidifying capability testing device for humidifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658304A (en) * | 2020-06-29 | 2020-09-15 | 北京中关村水木医疗科技有限公司 | Control method of lower computer, lower computer and readable medium |
| CN111685927A (en) * | 2020-06-29 | 2020-09-22 | 北京中关村水木医疗科技有限公司 | Temperature control system and method of operating the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018582A (en) * | 2004-08-20 | 2007-08-15 | 菲舍尔和佩克尔保健有限公司 | Apparatus for measuring properties of gases supplied to a patient |
| CN101181091A (en) * | 2007-11-23 | 2008-05-21 | 广州大学 | Test table for simulating refrigerated transport condition of perishable food |
| CN101556212A (en) * | 2008-04-07 | 2009-10-14 | 汉能科技有限公司 | Performance test system for fuel cell humidifier |
| CN102269661A (en) * | 2011-07-01 | 2011-12-07 | 南京师范大学 | Testing system for performance of air-cooled compression condensing unit |
| US8470479B2 (en) * | 2005-12-15 | 2013-06-25 | GM Global Technology Operations LLC | Sensorless relative humidity control in a fuel cell application |
| CN204649453U (en) * | 2015-05-15 | 2015-09-16 | 天津市医疗器械质量监督检验中心 | A kind of humidification machine humidifying aptitude tests device |
-
2015
- 2015-05-15 CN CN201510248962.3A patent/CN104807665B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018582A (en) * | 2004-08-20 | 2007-08-15 | 菲舍尔和佩克尔保健有限公司 | Apparatus for measuring properties of gases supplied to a patient |
| US8470479B2 (en) * | 2005-12-15 | 2013-06-25 | GM Global Technology Operations LLC | Sensorless relative humidity control in a fuel cell application |
| CN101181091A (en) * | 2007-11-23 | 2008-05-21 | 广州大学 | Test table for simulating refrigerated transport condition of perishable food |
| CN101556212A (en) * | 2008-04-07 | 2009-10-14 | 汉能科技有限公司 | Performance test system for fuel cell humidifier |
| CN102269661A (en) * | 2011-07-01 | 2011-12-07 | 南京师范大学 | Testing system for performance of air-cooled compression condensing unit |
| CN204649453U (en) * | 2015-05-15 | 2015-09-16 | 天津市医疗器械质量监督检验中心 | A kind of humidification machine humidifying aptitude tests device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658304A (en) * | 2020-06-29 | 2020-09-15 | 北京中关村水木医疗科技有限公司 | Control method of lower computer, lower computer and readable medium |
| CN111685927A (en) * | 2020-06-29 | 2020-09-22 | 北京中关村水木医疗科技有限公司 | Temperature control system and method of operating the same |
| CN111685927B (en) * | 2020-06-29 | 2022-03-15 | 北京中关村水木医疗科技有限公司 | Temperature control system and method of operating the same |
| CN111658304B (en) * | 2020-06-29 | 2022-03-15 | 北京中关村水木医疗科技有限公司 | Control method of lower computer, lower computer and readable medium |
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| CN104807665B (en) | 2017-04-26 |
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