CN203323981U - Gas leakage measuring instrument - Google Patents
Gas leakage measuring instrument Download PDFInfo
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- CN203323981U CN203323981U CN201320313984XU CN201320313984U CN203323981U CN 203323981 U CN203323981 U CN 203323981U CN 201320313984X U CN201320313984X U CN 201320313984XU CN 201320313984 U CN201320313984 U CN 201320313984U CN 203323981 U CN203323981 U CN 203323981U
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- measuring instrument
- pressure
- measured
- housing
- gas measuring
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Abstract
The utility model discloses a gas leakage measuring instrument suitable to be connected with an external gas source and to-be-measured equipment. The gas leakage measuring instrument comprises a housing, a pressure-reducing unit arranged in the housing, a proportioning valve arranged in the housing and connected with the pressure-reducing unit, a pressure-measuring unit arranged in the housing and used for measuring the gas pressure inside the to-be-measured equipment, a controller respectively connected with the pressure-reducing unit, the proportioning valve and the pressure-measuring unit, and a display screen. According to the pressure value measured by the pressure-measuring unit, the controller figures out the leakage amount of the to-be-measured equipment. The display screen is arranged in the housing and is used for displaying the measurement information of the gas leakage measuring instrument. According to the utility model, all parts of the gas leakage measuring instrument are integrated as a whole. Therefore, the leakage amount of the to-be-measured equipment can be conveniently, rapidly and accurately measured.
Description
Technical field
The utility model relates to technical field of medical instruments, especially relates to a kind of Leakage Gas measuring instrument.
Background technology
Traditional leak testing method for detection of Anesthesia machine adopts the parts such as flow control valve, flowmeter, tensimeter, and each parts are independent of one another, and test process is loaded down with trivial details, need to control a plurality of parts and just can complete measurement, and measuring accuracy is low, the test weak effect.
The utility model content
The utility model is intended at least solve one of technical matters existed in prior art.For this reason, a purpose of the present utility model is to propose a kind of Leakage Gas measuring instrument, and this Leakage Gas measuring instrument by each component integration together, can be easily and fast, the leakage rate of Measurement accuracy place device to be measured.
According to the Leakage Gas measuring instrument of the utility model embodiment, described Leakage Gas measuring instrument is suitable for being connected with device to be measured with external air source, and described Leakage Gas measuring instrument comprises: housing; Dropping equipment, described dropping equipment is located at the gaseous tension of supplying with described device to be measured in described housing for turning down described external air source; Proportioning valve, described proportioning valve is located in described housing, and described proportioning valve is connected with described dropping equipment and is positioned at the downstream of described dropping equipment; Device for pressure measurement, described device for pressure measurement is located in described housing and is suitable for measuring the gaseous tension in described device to be measured; Controller, described controller is connected with described dropping equipment, described proportioning valve and described device for pressure measurement respectively, and the force value that described controller is measured according to described device for pressure measurement draws the leakage rate of described device to be measured; And display screen, it is outer for showing the metrical information of described Leakage Gas measuring instrument that described display screen is located at described housing.
Leakage Gas measuring instrument according to the utility model embodiment, simple in structure, easy to use, the operator can complete the bubble-tight detection of device to be measured easily, for example take Anesthesia machine as example, can Quick Measuring measures the impermeability of Anesthesia machine by the Leakage Gas measuring instrument according to an embodiment of the utility model, judge whether its leakiness meets the safe handling requirement, thereby improve the safety in utilization of Anesthesia machine, avoid meeting accident, threaten patient's personal safety.
In addition, the Leakage Gas measuring instrument according to the utility model embodiment can also have following additional technical feature:
According to an embodiment of the present utility model, described Leakage Gas measuring instrument comprises flow measurement device, it is interior for the measurement gas flow that described flow measurement device is located at described housing, and described flow measurement device is connected so that described display screen demonstrates gas flow information with described display screen.
By flow measurement device is set, the operator can observe easily current gas flow information from display screen, the convenient adjusting.
According to an embodiment of the present utility model, described dropping equipment comprises dropping valve.Dropping valve is simple in structure, conveniently realizes voltage regulation function.
According to an embodiment of the present utility model, described flow measurement device comprises flow sensor.
According to an embodiment of the present utility model, described flow measurement device is a plurality of, and the gas flow information that shows of the described display screen mean value that is described a plurality of flow measurement devices.Can reduce measuring error like this, improve measuring accuracy.
According to an embodiment of the present utility model, described device for pressure measurement comprises pressure transducer.
According to an embodiment of the present utility model, described device for pressure measurement is a plurality of, and the pressure information that shows of the described display screen mean value that is described a plurality of device for pressure measurement.Can reduce measuring error like this, improve measuring accuracy.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
The accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram according to the Leakage Gas measuring instrument of an embodiment of the utility model.
Description of reference numerals:
Device for pressure measurement 4, controller 5;
Embodiment
Below describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, broad understanding should be done in the terms such as term " installation ", " being connected ", " connection ", " fixing ", for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only mean that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only mean that the First Characteristic level height is less than Second Characteristic.
Below with reference to Fig. 1, the Leakage Gas measuring instrument according to the utility model embodiment is described, the Leakage Gas measuring instrument is suitable for being connected with device to be measured with external air source, hermetic seal for detection of device to be measured, thereby judge the whether suitable work of device to be measured according to testing result, for example device to be measured can be Anesthesia machine.But, be understandable that, according to the Leakage Gas measuring instrument of an embodiment of the utility model, also can be applicable to before other use need to detect bubble-tight device.
According to the Leakage Gas measuring instrument of an embodiment of the utility model, comprise housing 1, dropping equipment 2, proportioning valve 3, device for pressure measurement 4, controller 5 and display screen 6.
As shown in Figure 1, dropping equipment 2 is located in housing 1 and supplies with the gaseous tension of device to be measured for turning down external air source, and in other words, dropping equipment 2 is suitable for being connected with external air source, for regulating external air source, supplies with for example gaseous tension of Anesthesia machine of device to be measured.By dropping equipment 2 is set, thereby realize the adjusting to the external air source output gas pressure, can avoid damage equipment like this, can also adjust required gaseous tension simultaneously.
Device for pressure measurement 4 is located in housing 1 and is suitable for measuring the gaseous tension in device to be measured, in other words, device for pressure measurement 4 is fixed in housing 1, and device for pressure measurement 4 can be used for detecting for example, gaseous tension in the device to be measured (Anesthesia machine) be connected with the Leakage Gas measuring instrument.
Particularly, take device to be measured as Anesthesia machine be example, Anesthesia machine will detect its sealing before use, only have guarantee when the impermeability of Anesthesia machine reaches certain standard to use safety, avoid causing danger, different Anesthesia machines can be identical for bubble-tight criterion, can certainly be different.
At first will with external air source, with Anesthesia machine, be connected respectively according to the Leakage Gas measuring instrument of an embodiment of the utility model, start external air source so that external air source is passed through the Leakage Gas measuring instrument to the Anesthesia machine air feed, regulate the aperture of proportioning valve 3 to obtain required gas flow rate, air feed continues the first schedule time T1, now the pressure transducer detected pressures is P1, this P1 compares with standard value P, if P1 >=P, think that impermeability is good, Anesthesia machine can work, if P1<P thinks the Anesthesia machine poor air-tightness, gas leakage is serious, can not meet the safe handling requirement.Be understandable that, standard value P is relevant with Anesthesia machine itself, air feed speed etc.
Further, under the condition of P1 >=P, external air source stops air feed, after externally source of the gas stops second schedule time of air feed T2 and the 3rd schedule time T3, and measured pressure value P 2 and P3 when device for pressure measurement 4 is recorded in respectively T2 and T3, T3>T2 wherein, P3-P2=△ P is arranged, T3-T2=△ T, controller 5 just can calculate the leakage rate of Anesthesia machine in △ T according to △ P thus, be well known to those of ordinary skill in the art about computing method, therefore be not described in detail here.Wherein, be understandable that, P3≤P2, when P3=P2, can think that Anesthesia machine does not leak, and when P3<P2, △ P is larger represents that the Anesthesia machine leakage rate is more.
Leakage Gas measuring instrument according to the utility model embodiment, simple in structure, easy to use, the operator can complete the bubble-tight detection of device to be measured easily, for example take Anesthesia machine as example, can Quick Measuring measures the impermeability of Anesthesia machine by the Leakage Gas measuring instrument according to an embodiment of the utility model, judge whether its leakiness meets the safe handling requirement, thereby improve the safety in utilization of Anesthesia machine, avoid meeting accident, threaten patient's personal safety.
According to an embodiment of the present utility model, the Leakage Gas measuring instrument also comprises flow measurement device 7, and it is interior for the measurement gas flow that flow measurement device 7 is located at housing 1, and flow measurement device 7 is connected so that display screen 6 demonstrates gas flow information with display screen 6.By flow measurement device 7 is set, the operator can observe easily current gas flow information from display screen 6, the convenient adjusting.
According to an embodiment of the present utility model, dropping equipment 2 comprises dropping valve.Dropping valve is simple in structure, conveniently realizes voltage regulation function.Be all prior art about the concrete structure of dropping valve and principle of work etc., and known by those of ordinary skill in the field, no longer described in detail here.
According to an embodiment of the present utility model, flow measurement device 7 comprises flow sensor.Further, flow measurement device 7 is a plurality of, and the gas flow information that shows of display screen 6 mean value that is the plurality of flow measurement device 7.Can reduce measuring error like this, improve measuring accuracy.
According to an embodiment of the present utility model, device for pressure measurement 4 comprises pressure transducer.Further, device for pressure measurement 4 is a plurality of, and the pressure information that shows of display screen 6 mean value that is the plurality of device for pressure measurement 4.Can reduce measuring error like this, improve measuring accuracy.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (7)
1. a Leakage Gas measuring instrument, described Leakage Gas measuring instrument is suitable for being connected with device to be measured with external air source, it is characterized in that, and described Leakage Gas measuring instrument comprises:
Housing;
Dropping equipment, described dropping equipment is located at the gaseous tension of supplying with described device to be measured in described housing for turning down described external air source;
Proportioning valve, described proportioning valve is located in described housing, and described proportioning valve is connected with described dropping equipment and is positioned at the downstream of described dropping equipment;
Device for pressure measurement, described device for pressure measurement is located in described housing and is suitable for measuring the gaseous tension in described device to be measured;
Controller, described controller is connected with described dropping equipment, described proportioning valve and described device for pressure measurement respectively, and the force value that described controller is measured according to described device for pressure measurement draws the leakage rate of described device to be measured; And
Display screen, it is outer for showing the metrical information of described Leakage Gas measuring instrument that described display screen is located at described housing.
2. Leakage Gas measuring instrument according to claim 1, it is characterized in that, also comprise flow measurement device, it is interior for the measurement gas flow that described flow measurement device is located at described housing, and described flow measurement device is connected so that described display screen demonstrates gas flow information with described display screen.
3. Leakage Gas measuring instrument according to claim 1, is characterized in that, described dropping equipment comprises dropping valve.
4. Leakage Gas measuring instrument according to claim 2, is characterized in that, described flow measurement device comprises flow sensor.
5. Leakage Gas measuring instrument according to claim 4, is characterized in that, described flow measurement device is a plurality of, and the gas flow information that shows of the described display screen mean value that is described a plurality of flow measurement devices.
6. Leakage Gas measuring instrument according to claim 1, is characterized in that, described device for pressure measurement comprises pressure transducer.
7. Leakage Gas measuring instrument according to claim 6, is characterized in that, described device for pressure measurement is a plurality of, and the pressure information that shows of the described display screen mean value that is described a plurality of device for pressure measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320313984XU CN203323981U (en) | 2013-05-31 | 2013-05-31 | Gas leakage measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320313984XU CN203323981U (en) | 2013-05-31 | 2013-05-31 | Gas leakage measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323981U true CN203323981U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320313984XU Expired - Lifetime CN203323981U (en) | 2013-05-31 | 2013-05-31 | Gas leakage measuring instrument |
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| CN (1) | CN203323981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215404A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Gas leakage measuring instrument |
| CN110672249A (en) * | 2019-09-30 | 2020-01-10 | 西安中星测控有限公司 | Pressure sensor with multiple pressure measurement units and data processing method thereof |
-
2013
- 2013-05-31 CN CN201320313984XU patent/CN203323981U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215404A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Gas leakage measuring instrument |
| CN110672249A (en) * | 2019-09-30 | 2020-01-10 | 西安中星测控有限公司 | Pressure sensor with multiple pressure measurement units and data processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |