CN207215528U - A kind of gas detection apparatus - Google Patents
A kind of gas detection apparatus Download PDFInfo
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- CN207215528U CN207215528U CN201721153053.2U CN201721153053U CN207215528U CN 207215528 U CN207215528 U CN 207215528U CN 201721153053 U CN201721153053 U CN 201721153053U CN 207215528 U CN207215528 U CN 207215528U
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Abstract
The utility model is applied to detection of gas technical field, provide a kind of gas detection apparatus, including detection of gas component, also include sampling cavity, the sampling cavity includes being used for the first cavity for gathering gas, second cavity and the piston that the sampling cavity is divided into first cavity and the second cavity, one end of first cavity is provided with the first ventilation mouth, one end of second cavity is provided with the second ventilation mouth, the piston is reciprocating, promoted successively towards first cavity or the second cavity, first cavity and the second cavity gather and discharged successively gas by pressure difference caused by the reciprocating motion of the pistons, the detection of gas component alternately detects the gas in first cavity and the second cavity.Gas detection apparatus provided by the utility model, the time interval of sampling is short, and error is small and consumes energy low.
Description
Technical field
The utility model belongs to detection of gas technical field, more particularly to a kind of gas detection apparatus.
Background technology
Existing gas detection apparatus is usually to carry out extraction gaseous sample with single cavity, due to gathering next group gas
, it is necessary to which the previous gas remained in cavity, which is released, can extract gaseous sample again during sample, therefore, sampling interruption be present
Problem, because sampling has cycle space every time, it may result in fractional-sample and omit the sample either extracted not in time, no
Accurately, especially fire time of failure is short, and the hidden danger possibility of appearance is higher.
Utility model content
The purpose of this utility model is to provide a kind of gas detection apparatus, visited with solving gas present in prior art
Survey the technical problem that the interval time sampled is long, error is big.
To achieve the above object, the technical solution adopted in the utility model is：A kind of gas detection apparatus, including gas are provided
Body probe assembly, sampling cavity and ventilation mouth, the sampling cavity include being used for gathering the first cavity of gas, the second cavity and
The sampling cavity is divided into the piston of first cavity and the second cavity, one end of first cavity is provided with the first ventilation
Mouthful, one end of the second cavity is provided with the second ventilation mouth, and the piston is reciprocating, successively towards first cavity or the second chamber
Body promotes, and first cavity and the second cavity gather and discharged successively gas by pressure difference caused by the reciprocating motion of the pistons
Body, the detection of gas component alternately detect the gas in first cavity and the second cavity.
Further, the sampling cavity is cylindrical cavity, and the piston is made past vertically in the sampling cavity
Multiple motion.
Further, the sampling cavity is rectangular-shape cavity, and the piston is made vertically in the sampling cavity
Move back and forth.
Further, the sampling cavity is circular arc tubular housing, and the piston is made vertically in the sampling cavity
Move back and forth.
Further, it is respectively provided with a detection of gas component in first cavity and the second cavity.
Further, the power rail in sampling cavity body is further comprised, the power rail is connected on the piston,
For promoting the piston reciprocating.
Further, further comprise that described power rail one end is connected to the work located at the external power rail of sampling cavity
Beyond the Great Wall, for the other end on line shaft, the line shaft, which rotates, drives the power rail to promote piston reciprocating.
Further, the transmission belt in sampling cavity body is further comprised, the piston is in the transmission belt, institute
Stating transmission belt drives the piston reciprocating.
Further, further comprise located at the magnetic field component for sampling cavity both ends, the piston built-in magnetic body,
The magnetic field component at the sampling cavity both ends leads to magnetic successively, and the piston is reciprocating by the attraction of magnetic force.
Further, the detection of gas component includes pressure sensor, temperature sensor and component analyser.
The beneficial effect of gas detection apparatus provided by the utility model is：
The utility model by set piston between the first cavity and the second cavity it is reciprocating so that the first cavity
With the second cavity alternately suction under test gas, and detected, compared to when carrying out detection using single cavity and greatly reducing
Between be spaced, solve the time interval length sampled present in prior art, the problem of result of detection error is big.
Brief description of the drawings
Fig. 1 is the structural representation for the gas detection apparatus that the utility model first embodiment provides；
Fig. 2 is the structural representation for the gas detection apparatus that the utility model second embodiment provides；
Fig. 3 is the structural representation for the gas detection apparatus that the utility model 3rd embodiment provides；
Each reference is in figure：Gas detection apparatus 1；Sample cavity 2；First cavity 21；Second cavity 22；3rd chamber
Body 23；First ventilation mouth 24；Second ventilation mouth 25；3rd ventilation mouth 26；Piston 3；Power rail 31；Line shaft 32；First piston
33；Second piston 34；3rd piston 35.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System, it is for only for ease of and describes the utility model and simplified description, rather than the device or element of instruction or hint meaning is necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.Specific implementation of the present utility model is carried out more below in conjunction with specific embodiment
Detailed description：
Embodiment one：
Such as the gas detection apparatus 1 that Fig. 1, the utility model first embodiment are provided, the gas being collected into for continuous probe
Body, analyzes central composition, concentration, temperature, density, such as reaches detection actual value and is above standard value, then sound alert notification
User, to have the function that to ensure user's life security.Gas detection apparatus 1 includes sampling cavity 2, ventilation mouth and piston 3, adopts
Sample cavity 2 is cylindrical cavity, and piston 3 will sample cavity 1 and be divided into the first cavity 21 and the second cavity 22, the first cavity 21,
Second cavity 22 is used to gather gas；Ventilation mouth includes the first ventilation mouth 24 for being arranged at one end of the first cavity 21, and
The second ventilation mouth 25 of one end of the second cavity 22 is arranged at, the gas sampled outside cavity 2 passes through the first ventilation mouth 24 or the second
The into or out sampling cavity 2 of mouth 25 of taking a breath；Located at sampling in cavity 2 and can freely axially move in piston 3, preferably adopt
With soft flexible material such as rubber, size completely cuts off the He of the first cavity 21 slightly larger than the inwall radial dimension of sampling cavity 2
Gas between second cavity 22, piston 3 are connected with the power rail 31 in sampling cavity 2, and power rail 31 is used to promote institute
It is reciprocating to state piston 3, is promoted successively towards the first cavity 21 or the second cavity 22, piston 3 promotes towards the direction of the first cavity 21
When, the first cavity 21 discharges the gas of internal residual from the first ventilation mouth 24, while the motion of piston 3 is caused in the second cavity 22
Portion's negative pressure state, sample the gas outside cavity 2 and start to enter the second cavity 22 from the second ventilation mouth 25, piston 3 reaches setting position
It is out of service when putting, the data for the gas that the second cavity 22 of now (not shown) detection of detection of gas component is collected, detect
Bi Hou, piston 3 move to the direction of the second cavity 22, the second cavity 22 discharge internal gas, while the motion of piston 3 causes first
The internal negative pressure state of cavity 21, sample the gas outside cavity 2 and start to enter the first cavity 21 from the first ventilation mouth 24, piston 3 arrives
Out of service during up to setting position, now detection of gas component detects the data for the gas that the first cavity 21 is collected, the first cavity
21 and second cavity 22 by piston 3 move back and forth caused by pressure difference gather and discharge successively gas, the first cavity 21 and the
A detection of gas component is respectively provided with two cavitys 22, detection of gas component is alternately in the first cavity 21 of detection and the second cavity 22
Gas, detection of gas component include pressure inductor, temperature inductor and component analyser, detect the first cavity 21 and the second chamber
Internal 22 concentration, temperature and gas componant.
When gas detection apparatus 1 carries out probe gas, it is necessary to which the pressure detected in sampling cavity 2 carries out parameter calculating,
It can be detected when pressure is in certain predetermined value, in single-chamber sampler body, it is necessary to detection gas pressure in real time, and compared to
The single-chamber body of prior art, after the utility model is using the first cavity 21, the dual chamber of the second cavity 22, pressure sensing can be omitted
Device, as shown in Figure 1, it is assumed that the first cavity 21 and the second cavity 22 have been each filled with test gas, and piston 3 is moved to close to the first chamber
During the location of C of body 21, now the pressure in the first cavity 21 reaches sets requirement, carries out the ginseng of the under test gas of the first cavity 21
Number analysis, after the completion of analysis, piston 3 continues to move to D positions, discharges the residual gas in the first cavity 21, then piston 3 is past
Second cavity 22 moves, and when reaching location A, the pressure of the second cavity 22 reaches requirement, carries out to be measured in the second cavity 22
Gas parameter is analyzed, and then moves to B location again, discharges the residual gas in the second cavity 22, and so on.Above-mentioned A, B,
C, D position can be in product export by being calculated, i.e. can omit pressure sensor.
The present embodiment one by set piston 3 between the first cavity 21 and the second cavity 22 it is reciprocating so that
One cavity 21 and the second cavity 22 alternately suction under test gas, and being detected, compared to using single cavity detect greatly
Time interval is reduced greatly, solves the time interval length sampled present in prior art, the shortcomings that result of detection error is big.
Further, above-mentioned sampling cavity 2 can be rectangular-shape cavity, and piston 3 is equally made vertically in cavity 2 is sampled
Move back and forth.
Further, above-mentioned gas detection device 1 can be changed into sampling cavity body with the power rail that piston 3 is moved
Transmission belt (not shown), for piston 3 in the transmission belt, transmission belt band piston 3 is reciprocating.
Further, above-mentioned gas detection device 1 can be not provided with power rail 31, and magnetic field group can be set in sampling cavity 2 both ends
Part (not shown), the settable magnetic (not shown) in the inside of piston 3, the magnetic field component positioned at the one end of the first cavity 21 are led to
Magnetic, piston 3 are promoted by the attraction of magnetic force toward the first cavity 21, and the first cavity 21 discharge residual gas, the second cavity 22 suction is treated
Survey gas and detect, the under test gas of the first cavity 21 is detected with same step.
By setting magnetic field component and magnetic to simplify the internal structure of sampling cavity 2 so that under test gas is treated
Survey environment is more succinct, and the factor of interference detection result is less, makes result of detection more accurate.
Embodiment two：
If the basic structure of Fig. 2, the utility model second embodiment gas detection apparatus 1 provided is the same as above-described embodiment one
It is similar, include sampling cavity 2, ventilation mouth and piston 3, unlike above-described embodiment one：In the present embodiment, sampling cavity
Body 2 is circular arc tubular housing, and the circle core shaft of arc tube is provided with line shaft 32, and power rail 31 is outside sampling cavity 2, power rail
31 one end are connected on piston 3, the other end on the line shaft 32, line shaft 32 rotate drive power rail 31 promote piston 3 around
Circle core shaft is reciprocating.
By the way that power rail 31 is arranged at outside sampling cavity 2, the internal structure for sampling cavity 2 is more succinct so as to be measured
The environment to be measured of gas is more succinct, and the factor of interference detection result is less, makes result of detection more accurate.
Reciprocating power rail 31 of the gas detection apparatus 1 of the present embodiment two with piston is equally changed to embodiment
One conveyer belt or magnet assembly and magnetic piston.
Embodiment three：
If the basic structure of Fig. 3, the utility model 3rd embodiment gas detection apparatus provided is the same as above-described embodiment one
It is similar, include sampling cavity 2, ventilation mouth and piston 3, unlike above-described embodiment one：In the present embodiment, gas is visited
Surveying the sampling cavity 2 of device 1 includes the first cavity 21, the second cavity 22 and the 3rd cavity 23, and the length of three cavitys is isometric, is in
" Y " word sets and is connected, and the first cavity 21 is provided with the first ventilation mouth 24, and the second cavity 22 is provided with the second ventilation chamber of mouth 25 and the 3rd
Body 23 be provided with the 3rd ventilation mouth 26, piston 3 include first piston 33, the piston 35 of second piston 34 and the 3rd, the first cavity 21,
Second cavity 22 and the 3rd cavity 23 are respectively equipped with transmission belt, and first piston 33, the piston 35 of second piston 34 and the 3rd are set respectively
In in transmission belt, transmission belt drives first piston 33, the piston 35 of second piston 34 and the 3rd reciprocating, the first cavity 21,
Second cavity 22 and the 3rd cavity 23 suck discharge gas successively, and detection of gas component detects the first cavity 21, the second chamber successively
Gas componant in the cavity 23 of body 22 and the 3rd.
By setting the interval time of multiple cavities probe gas more to shorten, more efficient, the detection knot of detection
Fruit is more accurate.
To sum up, gas detection apparatus 1 provided by the utility model is by setting piston 3 in the first cavity 21 and the second cavity
It is reciprocating between 22 so that the first cavity 21 and the second cavity 22 alternately suction under test gas, and being detected, compared to
Detection is carried out using single cavity and greatly reduces time interval, solves the time interval sampled present in prior art
It is long, the shortcomings that result of detection error is big；Furthermore gas detection apparatus 2 of the present utility model can be by setting magnetic field component and magnetic
Property body or by by power rail 31 be arranged at sampling cavity 2 outside, simplify sampling cavity internal structure so that under test gas
Environment to be measured it is more succinct, the factor of interference detection result is less, makes result of detection more accurate；In addition, gas detection apparatus
Sampling cavity 2 can be set to multiple cavities, the further time for shortening sampling so that result of detection is more accurate.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of gas detection apparatus, including detection of gas component, it is characterised in that：Also include sampling cavity, the sampling cavity
Body is divided into first cavity and the second chamber including the first cavity for gathering gas, the second cavity and by the sampling cavity
The piston of body, one end of first cavity are provided with the first ventilation mouth, and one end of the second cavity is provided with the second ventilation mouth, the work
Fill in reciprocating, promoted successively towards first cavity or the second cavity, described in first cavity and the second cavity rely on
Pressure difference caused by reciprocating motion of the pistons gathers and discharged successively gas, and the detection of gas component alternately detects first chamber
Gas in body and the second cavity.
2. gas detection apparatus as claimed in claim 1, it is characterised in that：The sampling cavity is cylindrical cavity, described
Piston is reciprocating vertically in the sampling cavity.
3. gas detection apparatus as claimed in claim 1, it is characterised in that：The sampling cavity is rectangular-shape cavity, institute
It is reciprocating vertically in the sampling cavity to state piston.
4. gas detection apparatus as claimed in claim 1, it is characterised in that：The sampling cavity is circular arc tubular housing, institute
It is reciprocating vertically in the sampling cavity to state piston.
5. gas detection apparatus as claimed in claim 1, it is characterised in that：It is respectively provided with first cavity and the second cavity
One detection of gas component.
6. gas detection apparatus as claimed in claim 2 or claim 3, it is characterised in that：Further comprise in sampling cavity body
Power rail, the power rail are connected on the piston, for promoting the piston reciprocating.
7. gas detection apparatus as claimed in claim 3, it is characterised in that：Further comprise located at the external power of sampling cavity
Bar, described power rail one end are connected on the piston, and for the other end on line shaft, the line shaft, which rotates, drives described move
Power bar promotes piston reciprocating.
8. the gas detection apparatus as described in claim any one of 2-5, it is characterised in that：Further comprise located at sampling cavity
Interior transmission belt, for the piston in the transmission belt, the transmission belt drives the piston reciprocating.
9. the gas detection apparatus as described in claim any one of 2-5, it is characterised in that：Further comprise being located at the sampling
The magnetic field component at cavity both ends, the piston built-in magnetic body, the magnetic field component at the sampling cavity both ends leads to magnetic successively, described
Piston is reciprocating by the attraction of magnetic force.
10. gas detection apparatus as claimed in claim 1, it is characterised in that：The detection of gas component includes pressure sensing
Device, temperature sensor and component analyser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153053.2U CN207215528U (en) | 2017-09-08 | 2017-09-08 | A kind of gas detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153053.2U CN207215528U (en) | 2017-09-08 | 2017-09-08 | A kind of gas detection apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN207215528U true CN207215528U (en) | 2018-04-10 |
Family
ID=61823706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721153053.2U Active CN207215528U (en) | 2017-09-08 | 2017-09-08 | A kind of gas detection apparatus |
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| CN (1) | CN207215528U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648401A (en) * | 2018-07-18 | 2018-10-12 | 国家电网有限公司 | Comprehensive survey device for fire |
| CN110174295A (en) * | 2019-07-02 | 2019-08-27 | 中国科学院寒区旱区环境与工程研究所 | Sample dissociation device and gas collector |
| CN112697641A (en) * | 2020-12-08 | 2021-04-23 | 武汉库仑特科技有限公司 | Reciprocating gas collection type shale desorption test analyzer |
| CN113281299A (en) * | 2021-03-26 | 2021-08-20 | 安徽波汇智能科技有限公司 | Gas detection method using higher harmonics |
| CN116125007A (en) * | 2023-04-04 | 2023-05-16 | 云南碧翔物联网科技有限公司 | Automatic monitoring system and method for environmental pollutants |
| CN117288917A (en) * | 2023-11-27 | 2023-12-26 | 四川旌峰新材料有限公司 | Combustible gas detector |
-
2017
- 2017-09-08 CN CN201721153053.2U patent/CN207215528U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648401A (en) * | 2018-07-18 | 2018-10-12 | 国家电网有限公司 | Comprehensive survey device for fire |
| CN110174295A (en) * | 2019-07-02 | 2019-08-27 | 中国科学院寒区旱区环境与工程研究所 | Sample dissociation device and gas collector |
| CN112697641A (en) * | 2020-12-08 | 2021-04-23 | 武汉库仑特科技有限公司 | Reciprocating gas collection type shale desorption test analyzer |
| CN113281299A (en) * | 2021-03-26 | 2021-08-20 | 安徽波汇智能科技有限公司 | Gas detection method using higher harmonics |
| CN116125007A (en) * | 2023-04-04 | 2023-05-16 | 云南碧翔物联网科技有限公司 | Automatic monitoring system and method for environmental pollutants |
| CN116125007B (en) * | 2023-04-04 | 2023-08-25 | 云南碧翔物联网科技有限公司 | Automatic monitoring system and method for environmental pollutants |
| CN117288917A (en) * | 2023-11-27 | 2023-12-26 | 四川旌峰新材料有限公司 | Combustible gas detector |
| CN117288917B (en) * | 2023-11-27 | 2024-01-26 | 四川旌峰新材料有限公司 | Combustible gas detector |
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