CN206804578U - Detection means - Google Patents
Detection means Download PDFInfo
- Publication number
- CN206804578U CN206804578U CN201720499163.8U CN201720499163U CN206804578U CN 206804578 U CN206804578 U CN 206804578U CN 201720499163 U CN201720499163 U CN 201720499163U CN 206804578 U CN206804578 U CN 206804578U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- detection means
- storage chamber
- housing
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a kind of detection means, belong to hydrogen gas sensor detection technique field, detection for the stability and repeatability of hydrogen gas sensor, detection means includes housing, oil-sealed rotary pump and the hydrogen cylinder for being loaded with hydrogen, housing is provided with storage chamber, oil-sealed rotary pump is used to detach the gas in storage chamber, and hydrogen cylinder is used to inject hydrogen into storage chamber.The detection means volume is small, simple in construction, easily operated, and security is good, can stability and repeatability of the quick detection hydrogen gas sensor under different hydrogen air pressure and different time, detection process is safe and reliable, and the cost of whole detection means is low.
Description
Technical field
Hydrogen gas sensor detection technique field is the utility model is related to, in particular to a kind of detection means.
Background technology
Hydrogen energy source is increasingly subject to the concern of society as a kind of clean, high-energy clean energy resource, and a lot
Field is applied.But hydrogen and danger close, once anti-life is revealed, the content in air reaches certain proportion, if processing
It is improper to be just likely to occur blast, therefore need in the place using hydrogen constantly to detect the concentration of hydrogen.For resistor-type hydrogen
The principle of gas sensor is：When sensor is exposed in hydrogen atmosphere, absorption, the infiltration of hydrogen can change the quick material of hydrogen in sensor
The resistance of material, after sensor is removed from hydrogen atmosphere, hydrogen can depart from the quick material of hydrogen, the resistance of the quick material of hydrogen is sent out again
It is raw to change.Stability and repeatability are the important performance characteristics of sensor, i.e. absorption and desorption process of the hydrogen with the quick material of hydrogen
Stablize and with repeatability.
Inventor has found that traditional hydrogen gas sensor at least has the disadvantage that in detection process under study for action：
Some sensor detectors in the market, volume is larger, and operation is complex, the amounts of hydrogen of consuming compared with
It is more, and instrument price is costly, it is inconvenient for use.
Utility model content
The purpose of this utility model is to provide a kind of detection means, to improve traditional hydrogen gas sensor test device body
Product is big, operates the problem of complex and cost is high.
What embodiment of the present utility model was realized in：
Based on above-mentioned first purpose, the utility model provides a kind of detection means, the stability for hydrogen gas sensor
The detection of repeatability, including housing, oil-sealed rotary pump and the hydrogen cylinder for being loaded with hydrogen, the housing are provided with storage
Chamber, the oil-sealed rotary pump are used to detach the gas in the storage chamber, and the hydrogen cylinder is used to inject into the storage chamber
Hydrogen.
In the utility model preferred embodiment, the oil-sealed rotary pump is connected with the housing by the first pipeline,
Storage chamber described in first pipeline communication.
In the utility model preferred embodiment, the hydrogen cylinder is connected with the housing by second pipe, described
Second pipe connects the storage chamber.
In the utility model preferred embodiment, the detection means also includes pressure gauge, and the pressure gauge is arranged on
On the second pipe.
In the utility model preferred embodiment, the detection means also includes three-way interface, the three-way interface peace
Fill on the housing, and the first interface of the three-way interface connects with the storage chamber, the second of the three-way interface connects
Mouth is used to connect the oil-sealed rotary pump；3rd interface of the three-way interface is used to connect the hydrogen cylinder.
In the utility model preferred embodiment, the housing includes base and end cap, and the base is provided with recessed
Groove, the end cap lid are sealed at the notch of the groove on the base.
In the utility model preferred embodiment, sealing ring is provided between the end cap and the base.
In the utility model preferred embodiment, the bottom land of the groove is provided with two relative support feets, is used for
Support the hydrogen gas sensor.
In the utility model preferred embodiment, the bottom land of the groove is provided with through hole, and the hydrogen cylinder passes through institute
Through hole is stated to connect with the storage chamber；The through hole has first annular edge and the second ring edge along its axis direction,
Direction of the aperture of the through hole along its axis direction from first annular edge to second ring edge tapers into, described
First annular edge is located at the bottom land of the groove.
Based on above-mentioned second purpose, the utility model provides a kind of detection means, the stability for hydrogen gas sensor
Detection, including housing, oil-sealed rotary pump and the hydrogen cylinder for being loaded with hydrogen, the housing are provided with storage chamber, the machinery
Vavuum pump connects the storage chamber, and the gas outlet of the hydrogen cylinder connects the storage chamber.
The beneficial effect of the utility model embodiment is：
In summary, the utility model embodiment provides a kind of detection means, and its is simple and reasonable, is easy to manufacture to add
Work, install with easy to use, meanwhile, the detection means volume is small, simple in construction, easily operated, and security is good, can quickly examine
Stability and repeatability of the hydrogen gas sensor under different hydrogen air pressure and different time are surveyed, detection process is safe and reliable, entirely
The cost of detection means is low.It is specific as follows：
The detection means that the present embodiment provides, for the detection of the stability of hydrogen gas sensor, detection means includes shell
Body, housing have a storage chamber, and storage chamber is the chamber of closing, good airproof performance.In actual mechanical process, by hydrogen to be detected
Sensor is placed in storage chamber, is then extracted the gas in storage chamber out using oil-sealed rotary pump, after gas is extracted out, is utilized splendid attire
The hydrogen cylinder for having hydrogen injects hydrogen into storage chamber, and the injection rate of hydrogen can be adjusted on demand, i.e., can simulate difference
Pressure environment, and then the stability of hydrogen gas sensor under different hydrogen pressure environment can be detected.Hydrogen gas sensor
Time in storage chamber is set on demand, and then can also realize the stability to the hydrogen gas sensor under different time
With the detection of repeatability.By the way that hydrogen gas sensor is placed in storage chamber, hydrogen environment, Jin Ershi are simulated in storage chamber
Show the detection of stability of the hydrogen gas sensor under hydrogen environment and repeatability, meanwhile, adjustment hydrogen intake can adjust
Pressure in storage chamber, and then pressure condition is changed, the time that hydrogen gas sensor is placed in storage chamber can set on demand, enter
And time conditions can be changed, this detection means realizes quick detection hydrogen gas sensor under different hydro air pressure and different time
Stability and repeatability.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is structural representation (the not connected oil-sealed rotary pump and hydrogen of the detection means of the utility model embodiment 1
Bottle)；
Fig. 2 is the structural representation of the detection means of the utility model embodiment 1；
Fig. 3 is the schematic cross-sectional view at a visual angle of the detection means of the utility model embodiment 2；
Fig. 4 is the schematic cross-sectional view at another visual angle of the detection means of the utility model embodiment 2.
Icon：10- housings；11- bases；111- through holes；12- end caps；13- storage chambers；14- observation windows；20-
Oil-sealed rotary pump；The pipelines of 21- first；30- hydrogen cylinders；31- second pipes；40- pressure gauges；50- three-way connections；60-
Supporting leg.
Embodiment
The principle of resistor-type hydrogen gas sensor is：When sensor is exposed in hydrogen atmosphere, absorption, the infiltration of hydrogen can change
Become the resistance of the quick material of hydrogen in sensor, after sensor is removed from hydrogen atmosphere, hydrogen can depart from the quick material of hydrogen, make hydrogen quick
The resistance of material changes again.Stability and repeatability are the important performance characteristic of sensor, i.e. hydrogen and the quick material of hydrogen
Absorption and desorption process it is stable and with repeatability.Some sensor detectors in the market, volume is larger, behaviour
Make complex, the amounts of hydrogen of consuming is more, and instrument price is costly, inconvenient for use.
In consideration of it, the utility model designer devises a kind of detection means, hydrogen gas sensor is placed in storage chamber 13,
Hydrogen environment can be simulated in storage chamber 13, the space of storage chamber 13 is limited, and storage is realized by changing the intake of hydrogen
The change of air pressure in chamber 13 is deposited, finally realizes stability of the quick detection hydrogen gas sensor under different hydro air pressure and different time
And repeatability.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation, the orientation or position relationship of the instruction such as term " interior ", " outer " in description of the present utility model
For based on orientation shown in the drawings or position relationship, or the utility model product using when the orientation or position usually put
Relation, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.This
Outside, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Detection means embodiment 1
Fig. 1-Fig. 4 is referred to, present embodiments provides a kind of detection means, hydrogen gas sensor is located in housing 10, passed through
Hydrogen is filled with housing 10 to simulate hydrogen environment, so can quick detection hydrogen gas sensor in different hydro air pressure and difference
Stability and repeatability under time.
Detection means includes housing 10, oil-sealed rotary pump 20, hydrogen cylinder 30, pressure gauge 40 and support component, machinery
Vavuum pump 20 is used to extract out the gas in housing 10, is then filled with hydrogen into housing 10 using hydrogen cylinder 30, has been filled with hydrogen
The housing 10 of gas simulates hydrogen environment, and hydrogen gas sensor is placed under hydrogen environment, can be to the stabilization of hydrogen gas sensor
Property and repeatability are detected, and Detection results are obvious, and the whole process time is short, save manpower and materials.Pressure gauge 40 is arranged on
On the path flowed in hydrogen cylinder 30 during hydrogen injection, Hydrogen Vapor Pressure can be accurately detected, is easy to adjust in real time.Support
Component is arranged in housing 10, for supporting hydrogen gas sensor.
Housing 10 has storage chamber 13, and storage chamber 13 is the chamber of sealing, and after hydrogen is contained in storage chamber 13, hydrogen is not
It can leak, ensure that the stability of pressure in storage chamber 13, hydrogen gas sensor, which is located under the hydrogen environment of pressure stability, to be examined
Survey, detection is more accurate.The shapes and sizes of storage chamber 13 are configured on demand, ensure the hydrogen gas sensor energy of correspondingly-sized
Enough it is put into, without specific dimension limitation in the present embodiment.
Storage chamber 13 can be that directly processing is formed in housing 10, i.e., housing 10 is used to be integrally formed and is processed into.
Obviously can be reused for the ease of the detection of hydrogen gas sensor, and package unit, housing 10 uses multiple component snaps
Formed, in use, some or certain several parts are taken apart, hydrogen gas sensor is put into storage chamber 13, then by multiple portions
Part fastens the storage chamber 13 to form sealing.After detection, some or certain several parts are opened, hydrogen gas sensor is taken
Go out, housing 10 can be reused, and save cost.
In the present embodiment, housing 10 includes base 11 and end cap 12, and fluted, the lid dress of end cap 12 is set on base 11
On the pedestal 11, it is enclosed at the notch of groove, the lid of end cap 12 is formd with storage at the notch of groove with base 11
The structure of housing 10 of chamber 13.In order to ensure sealing, the end face where the notch of groove is designed as mat surface, meanwhile, by end
The end face of lid 12 is arranged to mat surface, and when the lid of end cap 12 fills on the pedestal 11, sealing is installed between end cap 12 and base 11
Circle, sealing ring is in squeezed state, and sealing ring can be good at being sealed between end cap 12 and base 11, due to end cap 12 and bottom
There is mat surface on seat 11, the contact area of sealing ring and mat surface is big, good sealing effect.
During actual processing, base 11 is cylinder, end cap 12 to be discoid, meanwhile, Pocket Machining is cylindrical groove, end cap
12 are sealed on the storage chamber 13 that cylinder is formd after the notch of groove.
Further, the bottom land of groove is provided with the through hole 111 that is connected with the gas outlet of hydrogen cylinder 30, hydrogen from
Entered at the through hole 111 in storage chamber 13.
Further, through hole 111 has first annular edge and the second ring edge, through hole 111 along its axis direction
Direction of the aperture along its axis direction from first annular edge to the second ring edge taper into, first annular edge is located at
The bottom land of groove.I.e. hydrogen enters fashionable from through hole 111, as where the port where the second ring edge flows to first annular edge
Port, because through hole 111 is in horn-like, when entering storage chamber 13 at the port where hydrogen from first annular edge, hydrogen
Inwall flowing of the gas along through hole 111, hydrogen disperse, and prevent the excessive damage hydrogen gas sensor of air-flow.
After the lid of end cap 12 is mounted in base 11, end cap 12, to be detachably connected, is easy to picking and placeing for hydrogen gas sensor with base 11.
In the present embodiment, end cap 12 is fixedly connected with base 11 by the way of being spirally connected.
Further, multiple screwed holes are provided with the end face where the notch of the groove of base 11, multiple screwed holes enclose
Axis direction around groove is intervally arranged, and multiple screwed holes are evenly spaced on base 11, meanwhile, it is provided with end cap 12
Corresponding through hole 111, passed through using bolt and the fixation that is spirally connected is realized in screwed hole corresponding to being screwed onto after through hole 111.The connection knot
Structure is simple and reliable, easy to disassemble with installing.
In detection process, hydrogen gas sensor is located in storage chamber 13, is passed for the ease of observing the hydrogen in detection process
The state of sensor, observation window 14 is provided with the housing 10.Observation window 14 is preferably that transparent material is made, and observation window 14 is transparent
Plate.Further, transparent panel is installed on end cap 12.
, it is necessary to store hydrogen in storage chamber 13 in detection process, that is, hydrogen environment is simulated, therefore, it is necessary to first will storage
Gas in chamber 13 is extracted out, then injects hydrogen into storage chamber 13.Gas in injection and storage chamber 13 for the ease of hydrogen
Extraction, be provided with the first pipeline 21 and second pipe 31 being connected respectively with storage chamber 13, the first pipeline on the housing 10
21 are used to connect with oil-sealed rotary pump 20, are extracted out the gas in storage chamber 13 using oil-sealed rotary pump 20；Second pipe 31 is used
Connected in hydrogen cylinder 30, inject hydrogen into storage chamber 13 using hydrogen cylinder 30.Obviously, in order to ensure security, first manages
Road 21 carries out encapsulation process respectively with the link position of housing 10 and the link position of second pipe 31 and housing 10.
Support component includes two supporting legs 60 being oppositely arranged, and two supporting legs 60 are arranged at intervals, and through hole 111 is located at two
Between root supporting leg 60, during detection, hydrogen gas sensor is placed on two supporting legs 60.
It should be noted that oil-sealed rotary pump 20, hydrogen cylinder 30 and pressure gauge 40 that the present embodiment provides are existing skill
Art, its 26S Proteasome Structure and Function is not improved in the present embodiment, in order to avoid narration repeats burden, herein without specifically
It is bright.
It should be noted that housing 10, hydrogen cylinder 30 and oil-sealed rotary pump 20 that the present embodiment provides can be sold with separate pieces
Sell, fit together again during use；Housing 10, hydrogen cylinder 30 and oil-sealed rotary pump 20 can also be fitted together into
Row is sold.
The detection means volume that the present embodiment provides is small, and simple in construction, easily operated, security is good, being capable of quick detection
Stability and repeatability of the hydrogen gas sensor under different hydrogen air pressure and different time, detection process is safe and reliable, whole inspection
The cost for surveying device is low.
Detection means embodiment 2
The present embodiment also provides a kind of detection means, and the present embodiment is on the basis of the technical scheme of embodiment 1
Further to improve, the technical scheme of embodiment 1 and description is equally applicable to the present embodiment, in order to avoid narration repeats burden,
Embodiment 1 and disclosed technical scheme are no longer described in detail.It is specific as follows：
The present embodiment is to reduce overall volume, improves the improvement that overall compactness is carried out, and detection means also includes three
Connecting mouth, three-way interface is installed on the housing 10, and the first interface of three-way interface connects with storage chamber 13, and the of three-way interface
Two interfaces are used to connect oil-sealed rotary pump 20；3rd interface of three-way interface is used to connect hydrogen cylinder 30, sets on the housing 10
Connecting hole it is less, simplify the processing of housing 10, during practical operation, first interface connected with through hole 111.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of detection means, the detection for the stability and repeatability of hydrogen gas sensor, it is characterised in that including housing,
Oil-sealed rotary pump and the hydrogen cylinder for being loaded with hydrogen, the housing are provided with storage chamber, and the oil-sealed rotary pump is used to detach
Gas in the storage chamber, the hydrogen cylinder are used to inject hydrogen into the storage chamber.
2. detection means according to claim 1, it is characterised in that the oil-sealed rotary pump passes through first with the housing
Pipeline connects, storage chamber described in first pipeline communication.
3. detection means according to claim 1, it is characterised in that the hydrogen cylinder passes through second pipe with the housing
Connection, the second pipe connect the storage chamber.
4. detection means according to claim 3, it is characterised in that the detection means also includes pressure gauge, the pressure
Power table is arranged on the second pipe.
5. detection means according to claim 1, it is characterised in that the detection means also includes three-way interface, described
Three-way interface is installed on the housing, and the first interface of the three-way interface connects with the storage chamber, and described three connect
The second interface of mouth is used to connect the oil-sealed rotary pump；3rd interface of the three-way interface is used to connect the hydrogen cylinder.
6. detection means according to claim 1, it is characterised in that the housing includes base and end cap, the bottom
Seat setting is fluted, and the end cap lid is sealed at the notch of the groove on the base.
7. detection means according to claim 6, it is characterised in that sealing is provided between the end cap and the base
Circle.
8. detection means according to claim 7, it is characterised in that the bottom land of the groove is provided with two relative branch
Spike, for supporting the hydrogen gas sensor.
9. detection means according to claim 8, it is characterised in that the bottom land of the groove is provided with through hole, the hydrogen
Gas cylinder is connected by the through hole with the storage chamber；The through hole has first annular edge and second along its axis direction
Ring edge, the direction of the aperture of the through hole along its axis direction from first annular edge to second ring edge are gradual
Diminish, the first annular edge is located at the bottom land of the groove.
10. a kind of detection means, the detection for the stability and repeatability of hydrogen gas sensor, it is characterised in that including housing,
Oil-sealed rotary pump and the hydrogen cylinder for being loaded with hydrogen, the housing are provided with storage chamber, described in the oil-sealed rotary pump connection
Storage chamber, the gas outlet of the hydrogen cylinder connect the storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720499163.8U CN206804578U (en) | 2017-05-08 | 2017-05-08 | Detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720499163.8U CN206804578U (en) | 2017-05-08 | 2017-05-08 | Detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206804578U true CN206804578U (en) | 2017-12-26 |
Family
ID=60739321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720499163.8U Expired - Fee Related CN206804578U (en) | 2017-05-08 | 2017-05-08 | Detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206804578U (en) |
-
2017
- 2017-05-08 CN CN201720499163.8U patent/CN206804578U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105866331A (en) | Gas sensor test system for dynamic and static gas distribution dual purposes | |
| CN103364457B (en) | Real-time monitoring device for freezing-thawing damage of rock | |
| CN203929461U (en) | A kind of artificial pasture greenhouse gases harvester | |
| CN106198932A (en) | The experimental provision of water petrofacies interaction and method in a kind of simulation rock crack | |
| CN105738142A (en) | Adsorption efficiency experiment device and experiment method for iodine absorber | |
| CN103529079B (en) | A kind of moisture content test macro and method of testing thereof | |
| CN206862581U (en) | A kind of battery leak detecting device | |
| CN207717304U (en) | A kind of air leakage detector | |
| CN206804578U (en) | Detection means | |
| CN203719978U (en) | Standard gas preparation device | |
| CN205538266U (en) | An experimental device for adsorption efficiency of iodine adsorber | |
| CN106771093A (en) | Portable Insulating Oil Breakdown Voltage gassiness tester and its method of testing | |
| CN206772529U (en) | The detection means that a kind of crucible for crystal growth is leaked hunting | |
| CN105092314B (en) | Apparatus for headspace collection and method of using the same | |
| CN206583585U (en) | A kind of measurement and analytical equipment for magnet Dewar condition of high vacuum degree | |
| CN106248440A (en) | Farmland greenhouse gas monitoring sampling apparatus | |
| CN209926029U (en) | Natural gas power plant buries natural gas line and leaks measuring device | |
| CN206208462U (en) | Water-sealed bearing verifying attachment | |
| CN207730622U (en) | Gas permeability of rocks experimental rig under a kind of gas hyperosmosis | |
| CN205958196U (en) | Gas table cuts off leakproofness detection device | |
| CN205785161U (en) | A kind of temperature control subgrade soil deformation and frost-heave force tester | |
| CN107991461A (en) | A kind of ground wetting-drying circular tester of simulating ocean environment and acid and alkali corrosion | |
| CN218629161U (en) | A portable and movable water-enclosed farmland greenhouse gas emission collection device | |
| CN207742157U (en) | Online getter air-breathing test device | |
| CN207961724U (en) | Gas valve high-low pressure air tightness detection apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20190508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |