CN204649453U - A kind of humidification machine humidifying aptitude tests device - Google Patents
A kind of humidification machine humidifying aptitude tests device Download PDFInfo
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- CN204649453U CN204649453U CN201520317576.0U CN201520317576U CN204649453U CN 204649453 U CN204649453 U CN 204649453U CN 201520317576 U CN201520317576 U CN 201520317576U CN 204649453 U CN204649453 U CN 204649453U
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Abstract
A kind of humidification machine humidifying aptitude tests device.This device comprises environment temperature regulating box, is provided with gas temperature baffle-box, temperature controller, temperature probe, air compressor, electronic balance, barometric damper and velocimeter and humidification machine to be measured in environment temperature regulating box.Test is carried out in environment temperature regulating box, and environment temperature regulating box can make gas temperature regulate between 5 DEG C ~ 30 DEG C; Gas temperature can be adjusted to 18 DEG C ~ 30 DEG C by gas temperature baffle-box; Barometric damper can by velocity of flow adjust in 0L/min ~ 30L/min scope; After certain hour test, record the quality difference before and after test, electronic balance shown respectively, the medial temperature of input humidification machine gas and gas volume, finally calculate the humidifying ability of humidification machine.Proving installation described in the utility model solves the test difficult problem that environment temperature, input gas temperature and input gas flow in humidification machine test process all need to regulate on a large scale, and integrated height, easy and simple to handle.
Description
Technical field
The utility model belongs to medicine equipment detection field, is specifically related to a kind of humidification machine humidifying aptitude tests device, is 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.
Utility model content
The utility model object is the problem that will solve existing humidification machine test condition instability, provides a kind of reasonable in design, easy to use, testing result humidification machine humidifying aptitude tests device accurately.
The humidification machine humidifying aptitude tests device that the utility model provides 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.
V---gas volume
ν---gas flow rate
T---the 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 utility model 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 the utility model humidification machine humidifying aptitude tests device.
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
1-m
0, 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 utility model 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 the utility model spirit based on announcement of the present utility model.Therefore protection domain of the present utility model should be not limited to the content that embodiment discloses, and should comprise the various replacement machine maintenance of the present utility model decorations that do not deviate from, and present patent application claims not contained.
Claims (2)
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) is communicated with gas temperature baffle-box (3) by gas piping through gas input port (2), gas temperature baffle-box (3) is through gas outlet (16) and be communicated with 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 humidification machine to be measured (12) is by the gas outlet (9) on gas piping JA(junction ambient) temperature regulating chamber (1) sidewall.
2. 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 |
|---|---|---|---|
| CN201520317576.0U CN204649453U (en) | 2015-05-15 | 2015-05-15 | A kind of humidification machine humidifying aptitude tests device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317576.0U CN204649453U (en) | 2015-05-15 | 2015-05-15 | A kind of humidification machine humidifying aptitude tests device |
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| Publication Number | Publication Date |
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| CN204649453U true CN204649453U (en) | 2015-09-16 |
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ID=54102190
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520317576.0U Expired - Fee Related CN204649453U (en) | 2015-05-15 | 2015-05-15 | A kind of humidification machine humidifying aptitude tests device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807665A (en) * | 2015-05-15 | 2015-07-29 | 天津市医疗器械质量监督检验中心 | Humidifying capability testing device for humidifier |
| 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 |
-
2015
- 2015-05-15 CN CN201520317576.0U patent/CN204649453U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807665A (en) * | 2015-05-15 | 2015-07-29 | 天津市医疗器械质量监督检验中心 | Humidifying capability testing device for humidifier |
| 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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |