CN210005475U - high-temperature photo-ion sensor - Google Patents
high-temperature photo-ion sensor Download PDFInfo
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- CN210005475U CN210005475U CN201920809050.2U CN201920809050U CN210005475U CN 210005475 U CN210005475 U CN 210005475U CN 201920809050 U CN201920809050 U CN 201920809050U CN 210005475 U CN210005475 U CN 210005475U
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Abstract
The utility model discloses an kinds of high temperature light ion sensor, including the heat preservation cover, be provided with heating frame in the heat preservation cover, the bottom of heating frame is provided with the heater, be provided with the mount pad in the heating frame, be provided with two mounting holes on the mount pad, two all be provided with ultraviolet source on the mounting hole, the bottom of mount pad is provided with pottery base plate, be provided with two electrodes on the pottery base plate, the electrode is located the mounting hole, pottery base plate and ultraviolet source form the ionization chamber, the utility model provides a high temperature light ion sensor, VOCs does not adsorb when using, can not attenuate for a long-term continuous operation, does not receive ambient temperature to influence, and testing result sends out the nature well, and is more stable more accurate, and simultaneously, and the sample gas is from the homonymy business turn over of ionization chamber, and ionization particle detention time is longer in the ionization chamber, in addition, can support alternative work, and the intermittent type cleaning uses, and the sensor life is longer, and the attenuation.
Description
Technical Field
The utility model relates to a sensor technical field, concretely relates to kinds of high temperature light ion sensors.
Background
The PID is an English acronym of Photo Ionization Detection, namely, photoionization Detection, the PID technology is applied to more and more as accurate and effective Detection means nowadays, the PID has the basic principle that gas molecules to be detected are ionized by utilizing ultraviolet rays generated by the vacuum discharge phenomenon of inert gas, and the concentration of the gas to be detected is obtained by measuring the current intensity generated by the ionized gas.
The photoion sensor among the prior art, it is to including ionization chambers, only can wash after finishing waiting to detect, can not long-time continuous detection, because admit air with go out be in with side for these both sides form the convection current, and the ionization can be very fast follow the outlet duct and discharge, leads to the ionization dwell time short, and ionization effect is unsatisfactory.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide kinds of high temperature light ion sensor, can effectually avoid adhering to of pollutant, prolong the time that the accuracy detected greatly, simultaneously, can support alternate work, the sensor life-span is longer, the decay is still less.
The utility model provides a technical scheme that technical problem adopted as follows:
A high temperature photoion sensor, comprising:
the heating device comprises a heat preservation cover, wherein an heating frame is arranged in the heat preservation cover, and a heater is arranged at the bottom of the heating frame;
installation seats are arranged in the heating frame, two installation holes are formed in the installation seats, and ultraviolet light sources are arranged on the two installation holes;
the bottom of mount pad is provided with pottery base plate, be provided with two electrodes on the pottery base plate, the electrode is located the mounting hole, pottery base plate and ultraviolet light source form the ionization chamber.
Preferably, a temperature sensor is arranged on the side wall of the heating frame.
Preferably, the temperature sensors are provided with four, and the four temperature sensors are sequentially arranged on four side walls of the heating frame.
Preferably, the heat preservation cover comprises a lower heat preservation cover and an upper heat preservation cover covered on the lower heat preservation cover.
Preferably, the lower heat-preservation cover and the upper heat-preservation cover are both polyurethane heat-preservation covers.
Preferably, the lower heat-preservation cover and the upper heat-preservation cover are both arranged in a square shape.
Preferably, the heating frame is a red copper heating frame.
Preferably, the mounting seat is a polytetrafluoroethylene mounting seat.
Preferably, a groove matched with the mounting seat is formed in the heating frame.
Preferably, limiting protrusions for fixing the ultraviolet light source are arranged in the mounting holes.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
when the gas solubility is measured, VOCs are not adsorbed, the continuous operation can be carried out for a long time without attenuation, the detection is carried out under the constant temperature condition, the influence of the environmental temperature is avoided, the detection result is good in consistency, and the stability and the accuracy are higher;
the sample gas enters and exits from the same side of the ionization chamber, so that ionized particles are longer in residence time in the ionization chamber and stronger in signal;
because two ultraviolet light sources and two ionization chambers are arranged, the device can support alternate work, work is cleaned intermittently, the service life of the sensor is longer, attenuation is less, and maintenance is avoided.
Drawings
In order to more clearly illustrate the solution of the present application, brief descriptions will be given to the drawings required for describing the embodiments, and obviously, the drawings in the following description are embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exploded view of of a preferred embodiment of the high temperature photo-ion sensor of the present invention.
Fig. 2 is a second exploded view of a preferred embodiment of high-temperature photo-ion sensors according to the present invention.
Fig. 3 is a cross-sectional view of a preferred embodiment of the high-temperature photo-ion sensor of the present invention.
Reference numerals:
100-heat preservation cover, 200-heating frame, 201-heater, 300-mounting seat, 301-mounting hole, 400-ultraviolet light source, 500-ceramic substrate, 501-electrode, 101-lower heat preservation cover, 102-upper heat preservation cover, 203-groove and 311-limiting protrusion.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used in the specification of the application herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, the terms "comprising" and "having" and any variations thereof in the specification and claims of the application and in the description of the above figures are intended to cover non-exclusive inclusions, the terms "", "second", etc. in the specification and claims of the application or in the above figures are used for distinguishing between different objects and are not intended to describe a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least embodiments of the application.
The embodiment of the utility model provides kinds of high temperature light ion sensors, as shown in fig. 1 to 3, it includes heat preservation cover 100, be provided with heating frame 200 in the heat preservation cover 100, the bottom of heating frame 200 is provided with heater 201, be provided with mount pad 300 in the heating frame 200, be provided with two mounting holes 301 on the mount pad 300, two all be provided with ultraviolet light source 400 on the mounting hole 301, the bottom of mount pad 300 is provided with pottery base plate 500, be provided with two electrodes 501 on the pottery base plate 500, electrodes 501 are located mounting hole 301, pottery base plate 500 and ultraviolet light source 400 form the ionization chamber.
The working principle of the high-temperature photo-ion sensor is that the ultraviolet light source 400 ionizes target gas to form positively charged ions and free electrons, the electrons move to an electrode at the side of under the action of an electric field between two electrodes, and the electrodes transmit current to a display module for displaying after passing through an amplifier, so that the concentration of gas to be measured is displayed.
When the light ion sensor is used for measuring the gas solubility, VOCs are not adsorbed, the continuous operation can be carried out for a long time without attenuation, the detection is carried out under the constant temperature condition, the influence of the environmental temperature is avoided, the detection result is good in responsiveness, and the stability and the accuracy are higher.
The round ionization chamber structure, the sample gas is followed the homonymy of ionization chamber and is gone into and out, and the ionization particle is longer in the ionization chamber dwell time, and the signal is stronger.
Because two ultraviolet light sources 400 and two ionization chambers are arranged, the device can support alternate work, work intermittent cleaning application, the service life of the sensor is longer, attenuation is less, and maintenance is avoided.
In a preferred embodiment of the present invention , a temperature sensor (not shown) is disposed on a sidewall of the heating frame 200.
The present invention further preferred embodiments, the temperature sensors are four, and four temperature sensors are sequentially disposed on four side walls of the heating frame 200.
Set up four lateral walls that 4 temperature sensor encircle heating frame 200, temperature detect more stable accurate.
In the preferred embodiment of , the heat-insulating cover 100 includes a lower heat-insulating cover 101, and an upper heat-insulating cover 102 covering the lower heat-insulating cover 101.
In the preferred embodiment of the present invention , the lower heat-insulating cover 101 and the upper heat-insulating cover 102 are both polyurethane heat-insulating covers.
The polyurethane heat-insulating cover adopts a full-sealing structure, so that the temperature is kept more stably, and more energy is saved.
In the preferred embodiment of the present invention , the lower heat-insulating cover 101 and the upper heat-insulating cover 102 are both formed in a square shape.
In the preferred embodiment of the present invention as shown in , the heating frame 200 is a red copper heating frame.
In a preferred embodiment of the present invention, , the mounting base 300 is a teflon mounting base.
The polytetrafluoroethylene mounting seat and the ceramic substrate 500, and a double-sealing ring structure is adopted between the ultraviolet light source 400 and the polytetrafluoroethylene mounting seat, so that the working pressure of the sensor is improved, and the sealing performance is better.
In the preferred embodiment of the present invention , a groove 203 is formed in the heating frame 200 and is adapted to the mounting seat.
In the preferred embodiment of the present invention , a limiting protrusion 311 for fixing the ultraviolet light source 400 is disposed in the mounting hole 301.
To sum up, the utility model discloses an kinds of high temperature light ion sensor, including the heat preservation cover, be provided with heating frame in the heat preservation cover, the bottom of heating frame is provided with the heater, be provided with the mount pad in the heating frame, be provided with two mounting holes on the mount pad, two all be provided with ultraviolet light source on the mounting hole, the bottom of mount pad is provided with pottery base plate, be provided with two electrodes on the pottery base plate, the electrode is located the mounting hole, pottery base plate and ultraviolet light source form the ionization chamber, make when using, VOCs do not adsorb, can not attenuate for a long-term continuous operation, do not influenced by ambient temperature, and the testing result delimity is good, and is more stable more accurate, and simultaneously, the sample gas is gone in and out from the homonymy of ionization chamber, and the ionized particle is longer in the indoor dwell time of ionization, and the signal is stronger, in addition, can support alternate work, and the intermittent type cleaning uses, and the sensor life is.
While the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the embodiments set forth herein without departing from the spirit and scope of the invention, that the present application provides many different forms of embodiments, and that the embodiments are to be accorded the full scope of the disclosure as defined by the appended claims.
Claims (10)
1, A high-temperature photoion sensor, comprising:
the heating device comprises a heat preservation cover, wherein an heating frame is arranged in the heat preservation cover, and a heater is arranged at the bottom of the heating frame;
installation seats are arranged in the heating frame, two installation holes are formed in the installation seats, and ultraviolet light sources are arranged on the two installation holes;
the bottom of mount pad is provided with pottery base plate, be provided with two electrodes on the pottery base plate, the electrode is located the mounting hole, pottery base plate and ultraviolet light source form the ionization chamber.
2. A high-temperature photo-ion sensor according to claim 1, wherein a temperature sensor is disposed on a side wall of the heating frame.
3. A thermionic sensor according to claim 2 wherein there are four temperature sensors, four temperature sensors being arranged in sequence on four side walls of the heating frame.
4. A thermionic sensor according to claim 1 wherein the thermal cover comprises a lower thermal cover and an upper thermal cover covering the lower thermal cover.
5. A thermionic sensor according to claim 4 wherein the lower and upper thermal shields are both polyurethane thermal shields.
6. A thermionic sensor according to claim 5 wherein the lower and upper thermal shields are square.
7. A thermionic sensor according to claim 1 wherein the heater block is a copper heater block.
8. A thermionic valve as set forth in claim 1 wherein the mount is a teflon mount.
9. A high-temperature photoion sensor as recited in claim 1, wherein the heating frame is provided with a groove adapted to the mounting seat.
10. The thermionic valve as set forth in claim 1, wherein limiting protrusions for fixing the ultraviolet light source are disposed in the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920809050.2U CN210005475U (en) | 2019-05-29 | 2019-05-29 | high-temperature photo-ion sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920809050.2U CN210005475U (en) | 2019-05-29 | 2019-05-29 | high-temperature photo-ion sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210005475U true CN210005475U (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920809050.2U Active CN210005475U (en) | 2019-05-29 | 2019-05-29 | high-temperature photo-ion sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210005475U (en) |
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2019
- 2019-05-29 CN CN201920809050.2U patent/CN210005475U/en active Active
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Address after: 518000 b1-1201, building b1b2, Guangming science and Technology Park, Investment Promotion Bureau, Fenghuang community, Fenghuang street, Guangming District, Shenzhen, Guangdong (business premises are set up in units 5B and 5C, building B6, Guangming science and Technology Park, Investment Promotion Bureau, Fenghuang community, Fenghuang street, Guangming District, Shenzhen to engage in production and business activities) Patentee after: Shenzhen noan intelligent Co.,Ltd. Address before: 12 / F, building A2, Guangming Science Park, China Merchants Group, 3009 Guangming Street, Guangming New District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN NUOAN ENVIRONMENTAL & SAFETY Inc. |