CN207894806U - A kind of air chamber structure - Google Patents
A kind of air chamber structure Download PDFInfo
- Publication number
- CN207894806U CN207894806U CN201820168370.XU CN201820168370U CN207894806U CN 207894806 U CN207894806 U CN 207894806U CN 201820168370 U CN201820168370 U CN 201820168370U CN 207894806 U CN207894806 U CN 207894806U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- sealed chamber
- optical fiber
- end cap
- mounting hole
- 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
- 239000013307 optical fiber Substances 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 15
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 27
- 238000005516 engineering process Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polytetrafluoroethylene ethylene Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model discloses a kind of air chamber structures, the end cap being tightly connected including cylinder and positioned at cylinder both ends and with it, it is formed with sealed chamber between cylinder and the end cap at its both ends, coaxial arrangement is offered on two end caps respectively and for making optical fiber pass through optical fiber mounting hole, the air-filled pore for being filled with gas to be detected into sealed chamber is provided on one of end cap, humidification hole parallel with optical fiber mounting hole axis and for being filled with vapor into sealed chamber is provided on another end cap, it is also respectively provided on cylinder for making temperature detection sensor, humidity sensor and pressure transducer extend into the sensor mounting hole of sealed chamber, the temperature control device for adjusting gas temperature in sealed chamber is additionally provided on cylinder.The utility model is simple in structure, easy to use, corresponding control that can be according to the display of respective sensor to pressure, humidity and temperature in sealed chamber, to meet the requirement of experiment under different situations.
Description
Technical field
The utility model is related to a kind of gas analysis arrangement fields, and in particular to a kind of air chamber structure.
Background technology
In industries such as coal mine, petrochemical industry, metallurgy and environmental protection, the requirement with people to gas detection is higher and higher, surveys
Amount technology is increasingly valued by people with equipment.With the hair at full speed of optical fiber sensing technology and Networks of Fiber Communications technology
Exhibition, the unique advantage that optical fiber gas sensing technology has by it are particularly subject to pay attention in the field of gas sensing.Therefore into
When the detection of the gases such as row carbon monoxide, methane, the gas detector using optical fiber gas sensing technology is often required to use.This
Kind fiber-optic fiber gas detector includes the overlay film fiber segment of surface coating and the single mode optical fiber section of its both ends welding, passes through overlay film optical fiber
The absorption of sensitive gas detects gas with observing the drift of interference fringe centre wavelength, but in research process
In, it needs to observe the influence of temperature, humidity and pressure to sensor, it is therefore desirable to be tested accordingly in gas chamber.
Utility model content
In view of the above shortcomings of the prior art, technical problem to be solved in the utility model is：How a kind of point is provided
Gas temperature, humidity and pressure to be detected are not controlled, to meet the air chamber structure of requirement of experiment under different situations.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution：
A kind of air chamber structure, including cylinder and the end cap that is tightly connected positioned at cylinder both ends and with it, cylinder and its both ends
End cap between be formed with sealed chamber, offered respectively on two end caps coaxial arrangement and for make optical fiber pass through optical fiber peace
Hole is filled, the air-filled pore for being filled with gas to be detected into sealed chamber, another end cap are provided on one of end cap
On be provided with parallel with optical fiber mounting hole axis and for being filled with the humidification hole of vapor into sealed chamber, also divide on cylinder
It is not provided with the sensor installation for making temperature detection sensor, humidity sensor and pressure transducer extend into sealed chamber
Hole is additionally provided with the temperature control device for adjusting gas temperature in sealed chamber on cylinder.
In the present invention, in use, overlay film fiber segment is placed in sealed chamber, the single mode optical fiber Duan Ze at both ends
End cap is pierced by by the optical fiber mounting hole on two end caps respectively, and is sealed fixation；Then just led to according to requirement of experiment
It overcharges stomata to think to be filled with corresponding gas to be detected in sealed chamber, be shown according to the pressure of pressure transducer to control air inlet pressure
Power realizes the adjusting to gas pressure intensity size in entire sealed chamber；It is filled with into sealed chamber accordingly additionally by humidification hole
Vapor is controlled accordingly by the humidity display of humidity sensor, is met the influence to sensor under different humidity, is added
Wet hole is parallel with optical fiber mounting hole axis, and the vapor being filled with so directly against optical fiber, does not avoid vapor in overlay film light
It is condensed into water in fine section, influences absorption of its overlay film to sensitive gas；But also sealed chamber can be adjusted by temperature control device
The temperature of interior gas meets the influence to sensor under different temperatures.It finally, can be with a variety of to seal chamber indoor gas pressure
By force, the control of humidity and temperature is realized and is tested in a variety of situations to the influence of sensor.
As an optimization, the temperature control device includes heating device and cooling device, and heating device includes being fixedly connected on institute
It states on the inner wall of cylinder for the heating plate heated to the seal chamber indoor gas, offers and be used on the cylinder
It includes being arranged in the indoor cooling tube of the seal chamber, the cylinder to make the cable perforation that heating plate cable passes through, cooling device
It offers coolant on body into hole and coolant to portal, the both ends of cooling tube are portalled company with coolant into hole and coolant respectively
It is logical.When needing to be tested higher than room temperature, heating plate is powered, and can be carried out to seal chamber indoor gas direct
Heat temperature raising, the control of seal chamber indoor temperature are melted at 200 DEG C hereinafter, optical fiber is avoided to soften even；When needs are less than room temperature
In the case of when being tested, to coolant into hole in be passed through corresponding coolant, coolant is in cooling Bottomhole pressure, with seal chamber
Indoor gas carries out heat exchange, achievees the purpose that reduce gas temperature in sealed chamber with this.As an optimization, the optical fiber peace
It fills hole and the cylinder to be coaxially disposed, the cooling tube along the tubular axis direction extends spirally setting and its center line and institute
It is coaxial to state Barrel alignment.Cooling tube spiral surrounding not only increases the heat exchange contact area with gas outside optical fiber, simultaneously also
Cool down to seal chamber indoor gas more uniform.
As an optimization, the sealed chamber is integrally in rectangular configuration along the section of the cylinder in the radial direction, described close
It seals on the side side wall of chamber and is fixedly connected with two strips opposite and disposed in parallel, strip prolongs along the cylinder axial direction
It stretches, two strips offer a card for extending to the other end along its length from strip one end on opposite side side
Slot, the heating plate is rectangular configuration and its opposite both sides side is inserted in by the end of strip in card slot respectively.Installation
When heating plate, it is only necessary to heating plate are inserted into card slot from one end end of strip and slided along card slot length direction, so that both sides
Strip heating plate is fixed, so that installation and removal is become simpler.
In conclusion the beneficial effects of the utility model are：The utility model is simple in structure, easy to use, Neng Gougen
Corresponding control according to the display of respective sensor to pressure, humidity and temperature in sealed chamber, to meet the reality under different situations
Test requirement.
Description of the drawings
It is new to this practicality below in conjunction with attached drawing in order to keep the purpose, technical scheme and advantage of utility model clearer
Type is described in further detail, wherein：
Fig. 1 is the side view of the utility model；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is the mounting structure sectional view of heating plate in the utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of air chamber structure in present embodiment, including cylinder 1 and be located at 1 liang of cylinder
End and the end cap 2 that is tightly connected with it, are formed with sealed chamber between cylinder 1 and the end cap 2 at its both ends, on two end caps 2
Coaxial arrangement is offered respectively and is provided with for making optical fiber pass through optical fiber mounting hole 3, on one of end cap 2 for sealing
The air-filled pore 4 of gas to be detected is filled in chamber, be provided on another end cap 3 it is parallel with 3 axis of optical fiber mounting hole and
Humidification hole for being filled with from vapor to sealed chamber is also respectively provided on cylinder 1 for making temperature detection sensor, wet
Degree sensor and pressure transducer extend into the sensor mounting hole 6 of sealed chamber, are additionally provided on cylinder 1 for adjusting sealing
The temperature control device of gas temperature in chamber.
In present embodiment, the temperature control device includes heating device and cooling device, and heating device includes fixing
It is connected on the inner wall of the cylinder 1 for the heating plate 5 heated to the seal chamber indoor gas, the cylinder 1
On offer for making the cable perforation 7 that heating plate cable passes through, cooling device include be arranged it is indoor in the seal chamber
Cooling tube（It is not drawn into figure）, coolant is offered on the cylinder 1 portals 9 into hole 8 and coolant, the both ends difference of cooling tube
Portal into hole 8 and coolant with coolant and 9 is connected to.In present embodiment, the optical fiber mounting hole 3 is same with the cylinder 1
Axis is arranged, and the cooling tube extends spirally setting along 1 axis direction of the cylinder and its center line and 1 center line of the cylinder are same
Axis.
In present embodiment, the sealed chamber is along the whole rectangular knot in the section in the radial direction of the cylinder 1
Structure is fixedly connected with two strips 10 opposite and disposed in parallel on the side side wall of the sealed chamber, and strip 10 is along described
1 axial direction of cylinder extends, and offers one on the opposite side side of two strips 10 from 10 one end of strip along its length
Direction extends to the card slot of the other end, and the heating plate 5 is rectangular configuration and its opposite both sides side passes through strip 10 respectively
End be inserted in card slot.
During specific implementation, the cylinder is closed up by two symmetrically arranged semicircular arc covers, semicircle
There are one the rectangular channels extended along its axis direction for the inside tool of arc cover, and the angle of cut of rectangular channel slot bottom both sides is arc-shaped friendship
Angle, semicircular arc cover close up side outward bending and have extended to form side flanging, when two semicircular arc covers close up, two
The side flanging of a semicircular arc cover both sides can be bonded and can be linked together by bolt I, and two are bonded to each other fixation
Side flanging between be additionally provided with one layer of gasket I, to increase leakproofness.In addition the both ends difference of semicircular arc cover is outside
It bends and has extended to form and knock over side, when two semicircular arc covers close up, side is knocked over positioned at two of the same side can be with
The end cap of corresponding side is bonded and can be linked together by bolt II, knocks over and is additionally provided between side and the end cap
One layer of gasket II, equally increasing leakproofness.In addition one layer of polytetrafluoroethylene ethylene layer is coated on the inner wall of cylinder, is conducive to
It improves thermal insulation effect and improves etch-proof ability.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although logical
The preferred embodiment crossed with reference to the utility model has been described the utility model, but those skilled in the art
It should be appreciated that various changes can be made to it in the form and details, without departing from the appended claims institute
The spirit and scope of the utility model of restriction.
Claims (4)
1. a kind of air chamber structure, it is characterised in that：The end cap being tightly connected including cylinder and positioned at cylinder both ends and with it, cylinder
It is formed with sealed chamber between the end cap at its both ends, offers coaxial arrangement on two end caps respectively and for making optical fiber wear
Optical fiber mounting hole is crossed, the air-filled pore for being filled with gas to be detected into sealed chamber is provided on one of end cap, in addition
Humidification hole parallel with optical fiber mounting hole axis and for being filled with vapor into sealed chamber, cylinder are provided on one end cap
The biography for making temperature detection sensor, humidity sensor and pressure transducer extend into sealed chamber is also respectively provided on body
Sensor mounting hole is additionally provided with the temperature control device for adjusting gas temperature in sealed chamber on cylinder.
2. a kind of air chamber structure according to claim 1, it is characterised in that：The temperature control device includes heating device and cold
But device, heating device include being fixedly connected on the inner wall of the cylinder for adding to the seal chamber indoor gas
The heating plate of heat, the cable perforation for making heating plate cable pass through is offered on the cylinder, and cooling device includes setting
Coolant is offered on the indoor cooling tube of the seal chamber, the cylinder into hole and coolant to portal, the both ends of cooling tube
Portal respectively into hole and coolant with coolant and is connected to.
3. a kind of air chamber structure according to claim 2, it is characterised in that：The optical fiber mounting hole and the cylinder are coaxial
Setting, the cooling tube extends spirally setting along the tubular axis direction and its center line and the Barrel alignment are coaxial.
4. a kind of air chamber structure according to claim 2, it is characterised in that：The sealed chamber is along the cylinder radial direction side
Upward section is integrally in rectangular configuration, and two are fixedly connected on the side side wall of the sealed chamber relatively and is arranged in parallel
Strip, strip extends along the cylinder axial direction, and two strips offer one from strip on opposite side side
One end extends to the card slot of the other end along its length, and the heating plate is rectangular configuration and its opposite both sides side difference
It is inserted in card slot by the end of strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820168370.XU CN207894806U (en) | 2018-01-31 | 2018-01-31 | A kind of air chamber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820168370.XU CN207894806U (en) | 2018-01-31 | 2018-01-31 | A kind of air chamber structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207894806U true CN207894806U (en) | 2018-09-21 |
Family
ID=63546402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820168370.XU Expired - Fee Related CN207894806U (en) | 2018-01-31 | 2018-01-31 | A kind of air chamber structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207894806U (en) |
-
2018
- 2018-01-31 CN CN201820168370.XU patent/CN207894806U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |