CN109342366B - Gas diffusion box - Google Patents
Gas diffusion box Download PDFInfo
- Publication number
- CN109342366B CN109342366B CN201811373506.1A CN201811373506A CN109342366B CN 109342366 B CN109342366 B CN 109342366B CN 201811373506 A CN201811373506 A CN 201811373506A CN 109342366 B CN109342366 B CN 109342366B
- Authority
- CN
- China
- Prior art keywords
- plate
- box
- buffer
- gas diffusion
- box body
- 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.)
- Active
Links
- 238000009792 diffusion process Methods 0.000 title claims abstract description 33
- 239000011521 glass Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000003245 coal Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/45—Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Sampling And Sample Adjustment (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a gas diffusion box, which comprises a box body, a box cover, buffer plates, a mounting plate, a plurality of fixing plates and a pressure gauge, wherein the box cover is hermetically arranged at an inlet at the upper end of the box body; a left air inlet nozzle and a right air inlet nozzle are correspondingly and hermetically arranged on the left side wall and the right side wall of the box body; and a plurality of through holes which are uniformly distributed are formed in the buffer plate. The invention can be used for detecting the stability of the optical gas detector or the portable gas detector, improves the uniformity and stability of the test gas in the box body, and can acquire the pressure value in the box body in real time.
Description
Technical Field
The invention relates to a gas diffusion box, and belongs to the technical field of diffusion boxes.
Background
The gas diffusion box is a special test device for measuring and detecting the mechanism, and the gas diffusion box is used for detecting the diffusion performance when a measuring station (room) of a coal mine safety instrument detects the methane measuring device based on the optical interference principle. The underground coal mine methane concentration automatic balancing device mainly utilizes the natural gas diffusion principle to simulate underground coal mine environment, and can automatically balance pressure energy inside and outside a box while keeping the methane concentration in the box unchanged, and various gas sensors and various detection alarm devices on an electrified aging mining detection system are utilized. However, the existing gas diffusion tank has the following problems in the use process: the uniformity and stability of the test gas in the box body are required to be improved; the pressure display device is not arranged on the box body, so that the pressure condition in the box body is not clear, and the safety is poor when the box body is in misoperation.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a gas diffusion box which can be used for detecting the stability of an optical gas detector or a portable gas detector and can improve the uniformity and stability of test gas in the box; the pressure value in the box body can be obtained in real time.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a gas diffusion case, includes box, the case lid of sealed installation in box upper end import department, the buffer board of symmetry installation on the left and right sides wall in the box, install the mounting panel of arranging on the bottom plate in the box level, a plurality of fixed plate and the manometer of installing in the box on the mounting panel, every install layer board and a plurality of groups and layer board matched with be used for fixed the positioner of piece that awaits measuring on the fixed plate, just to installing power connection in the below of every positioner on the fixed plate, all power connection are connected with the power through the wire; a left air inlet nozzle and a right air inlet nozzle are correspondingly and hermetically arranged on the left side wall and the right side wall of the box body; and a plurality of through holes which are uniformly distributed are formed in the buffer plate.
Preferably, the buffer plates are arranged in the box body in a two-by-two symmetrical mode, the size of the buffer plate close to the inner wall of the box body is larger than that of the buffer plate far away from the inner wall of the box body, and the diameter of the through hole in the buffer plate close to the inner wall of the box body is smaller than that of the through hole in the buffer plate far away from the inner wall of the box body.
Preferably, a pressure balancer is mounted on the tank.
Preferably, the positioning device comprises two limiting plates capable of moving left and right along the fixed plate, the limiting plates are L-shaped folded plates, and the cross section of the supporting plate is L-shaped; the limiting plate is vertically arranged with the supporting plate.
Preferably, a plurality of U-shaped positioning blocks are movably arranged on the supporting plate.
Preferably, the fixed plate is provided with a sliding groove which is arranged left and right, and the limiting plate is provided with a sliding part which is matched with the sliding groove.
Preferably, the movable device for transferring the whole diffusion tank comprises a base and a telescopic pull rod arranged on one side of the base, a U-shaped groove for installing the diffusion tank is formed in the base, a plurality of reset springs are arranged at the bottom of the U-shaped groove, grooves are symmetrically formed in the left side and the right side of the U-shaped groove, springs are arranged in the grooves, and hemispherical positioning blocks are arranged at the ends of the springs.
Preferably, a timer is further mounted on the box body, and the timer is mounted on the box body through a bracket.
Preferably, the exhaust cover is hermetically arranged on the case cover.
Preferably, the box body, the box cover, the buffer plate, the mounting plate and the fixing plate are all made of organic glass.
Compared with the prior art, the invention can be used for detecting the stability of an optical gas detector or a portable gas detector through the cooperation of all components; the buffer plate and the through holes can form a buffer layer, so that the air flow rate of the test gas is reduced, and the test gas uniformly and slowly enters the box body, thereby improving the uniformity and stability of the test gas in the box body; the pressure gauge is additionally arranged, so that a user can conveniently know the pressure value in the box body in real time, and different measures are adopted according to specific pressure conditions.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, the gas diffusion box provided by the embodiment of the invention comprises a box body 1, a box cover 7 which is hermetically arranged at an inlet at the upper end of the box body 1, buffer plates 3 which are symmetrically arranged on the left side wall and the right side wall in the box body 1, a mounting plate 11 which is horizontally arranged on the bottom plate in the box body 1, a plurality of fixing plates 10 which are arranged on the mounting plate 11 and a pressure gauge 8 which is arranged in the box body 1, wherein a supporting plate 12 and a plurality of groups of positioning devices 13 which are matched with the supporting plate 12 and are used for fixing a piece to be detected are arranged on each fixing plate 10, a power connector 14 is arranged on the fixing plate 10 right below each positioning device 13, and all the power connectors 14 are connected with a power supply 2 through wires; the left and right side walls of the box body 1 are correspondingly provided with a left air inlet nozzle 4 and a right air inlet nozzle 9 in a sealing manner; the buffer plate 3 is provided with a plurality of through holes which are uniformly distributed. The buffer plate 3 and the through holes can form a buffer layer, so that the air flow rate of the test gas is reduced, and the test gas uniformly and slowly enters the box body. Wherein, the bottom of the box body is also provided with a water tank. The pressure gauge is additionally arranged, so that a user can conveniently know the pressure value in the box body in real time, and different measures are adopted according to specific pressure conditions. In order to improve accuracy, the pressure gauge may be provided in a plurality of, for example, two, symmetrically disposed in the case 1. Wherein, the buffer plate 3 can be a flat plate structure or a curved plate structure, when the curved plate is adopted, the buffer effect is better,
preferably, the buffer plates 3 are four, two by two symmetrically arranged in the box body 1, the size of the buffer plate close to the inner wall of the box body 1 is larger than that of the buffer plate far away from the inner wall of the box body 1, and the diameter of the through hole on the buffer plate close to the inner wall of the box body 1 is smaller than that of the through hole on the buffer plate far away from the inner wall of the box body 1. Two buffer plates 3 are respectively arranged on the left side and the right side in the box body 1, and the size of the two buffer plates 3 and the arrangement of the through holes can further improve the air flow rate of test gas, so that the test gas can more uniformly and slowly enter the box body 1. Of course, the two buffer plates 3 on the same side can be arranged in parallel or in an X-shaped intersection, and the buffer effect can be realized.
Preferably, a pressure balancer is mounted on the case 1.
Preferably, the positioning device 13 includes two limiting plates capable of moving left and right along the fixing plate 10, the limiting plates are L-shaped folded plates, and the cross section of the supporting plate 12 is L-shaped; the limiting plate is arranged perpendicular to the pallet 12. The two limiting plates in each positioning device 13 can be adjusted according to the width of the to-be-detected piece so as to realize positioning of different to-be-detected pieces.
Preferably, a plurality of U-shaped positioning blocks are movably mounted on the supporting plate 12. The U-shaped positioning block is additionally arranged to further position the to-be-detected piece. And the U-shaped positioning block can move left and right, so that the position can be conveniently adjusted according to actual needs.
Preferably, the fixing plate 10 is provided with a sliding groove arranged left and right, and the limiting plate is provided with a sliding part matched with the sliding groove. The setting of spout and sliding part has realized the removal of limiting plate on fixed plate 10, wherein the spout can be T type groove, the sliding part can be with T type groove matched with T type arch, simple structure, processing is convenient.
Preferably, as shown in fig. 2, the mobile device for transferring the whole diffusion tank can also be included, the mobile device comprises a base 15 and a telescopic pull rod 18 arranged on one side of the base 15, a U-shaped groove for installing the diffusion tank is formed in the base 15, a plurality of return springs 16 are arranged at the bottom of the U-shaped groove, grooves are symmetrically formed in the left side and the right side of the U-shaped groove, springs are arranged in the grooves, and hemispherical positioning blocks are arranged at the ends of the springs. Wherein the bottom of the base 15 may be fitted with universal wheels 17.
Preferably, a timer 5 is further installed on the case 1, and the timer 5 is installed on the case 1 through a bracket.
Preferably, the exhaust cover 6 is mounted on the cover 7 in a sealing manner.
Preferably, the box body, the box cover, the buffer plate, the mounting plate and the fixing plate are all made of organic glass.
When the gas-liquid separation device is used, standard methane gas is introduced into the box body 1 to fully diffuse the methane gas, the underground environment of a coal mine is simulated, and the stability of an optical gas detector or a portable gas detector can be detected, specifically as follows:
A. optical gas detector for detection
Injecting water into the tank body water tank until the water tank is one third of the water tank; placing the detected optical gas detector into a diffusion box; connecting a steel bottle filled with 2.0-2.5% methane with a pressure reducing valve, a flowmeter, a rubber tube and an air inlet nozzle at the left side of a diffusion tank, and connecting the air nozzle at the right side of the tank with the rubber tube to be communicated outdoors; opening a high-pressure valve of the steel cylinder, regulating the pressure reducing valve to flow 400ml/min, and closing the high-pressure valve and the low-pressure valve after 5 minutes; connecting air nozzles at the left side and the right side of the diffusion tank by using rubber pipes; after eight hours, the diffusion box is opened outdoors, the detected optical gas identifier is taken out, and the indication value is read.
B. Stability of detecting portable gas detector
The detector is calibrated first, then put into a ventilated diffusion box to work (operation steps are the same as A) for eight hours, and the basic error of the detector is taken out. And after that, the device is not calibrated any more, only is charged, is put into a diffusion box for working every day, and is repeated for 15 days, so as to see whether the basic error of the device exceeds the international range.
In summary, the invention can be used for detecting the stability of an optical gas detector or a portable gas detector through the cooperation of all components; the buffer plate and the through holes can form a buffer layer, so that the air flow rate of the test gas is reduced, and the test gas uniformly and slowly enters the box body, thereby improving the uniformity and stability of the test gas in the box body; the pressure gauge is additionally arranged, so that a user can conveniently know the pressure value in the box body in real time, and different measures are adopted according to specific pressure conditions.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a gas diffusion case which characterized in that, including box (1), install case lid (7) of box (1) upper end import department, install buffer board (3) on the left and right sides wall in box (1) symmetry, install mounting panel (11) that the level was arranged on bottom plate in box (1), a plurality of fixed plate (10) and pressure gauge (8) of installing in box (1) on mounting panel (11), install layer board (12) and a plurality of groups of positioner (13) that cooperate with layer board (12) and be used for fixed piece that awaits measuring on every fixed plate (10), install power connection (14) just below every positioner (13) on fixed plate (10), all power connection (14) are connected with power (2) through the wire; a left air inlet nozzle (4) and a right air inlet nozzle (9) are correspondingly and hermetically arranged on the left side wall and the right side wall of the box body (1); a plurality of through holes which are uniformly distributed are formed in the buffer plate (3);
the pressure balancer is arranged on the box body (1);
an exhaust cover (6) is arranged on the box cover (7) in a sealing mode.
2. A gas diffusion tank according to claim 1, wherein the number of the buffer plates (3) is four, the buffer plates are arranged in the tank body (1) in a symmetrical manner, the size of the buffer plate close to the inner wall of the tank body (1) is larger than that of the buffer plate far away from the inner wall of the tank body (1), and the diameter of the through hole in the buffer plate close to the inner wall of the tank body (1) is smaller than that of the through hole in the buffer plate far away from the inner wall of the tank body (1).
3. A gas diffusion tank according to claim 1, wherein the positioning means (13) comprises two limiting plates which can move left and right along the fixed plate (10), the limiting plates are L-shaped folded plates, and the cross section of the supporting plate (12) is L-shaped; the limiting plate is vertically arranged with the supporting plate (12).
4. A gas diffusion tank according to claim 3, characterized in that the pallet (12) is movably fitted with a number of U-shaped positioning blocks.
5. A gas diffusion tank according to claim 4, wherein the fixing plate (10) is provided with sliding grooves arranged left and right, and the limiting plate is provided with sliding parts matched with the sliding grooves.
6. The gas diffusion tank according to claim 1, further comprising a moving device for transferring the whole diffusion tank, wherein the moving device comprises a base (15) and a telescopic pull rod (18) arranged on one side of the base (15), a U-shaped groove for installing the diffusion tank is formed in the base (15), a plurality of return springs (16) are arranged at the bottom of the U-shaped groove, grooves are symmetrically formed in the left side and the right side of the U-shaped groove, springs are arranged in the grooves, and hemispherical positioning blocks are arranged at the ends of the springs.
7. A gas diffusion tank according to claim 1, characterized in that a timer (5) is also mounted on the tank (1), the timer (5) being mounted on the tank (1) by means of a bracket.
8. A gas diffusion tank according to claim 1, characterized in that the tank body (1), the tank cover (7), the buffer plate (3), the mounting plate (11) and the fixing plate (10) are all made of organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373506.1A CN109342366B (en) | 2018-11-16 | 2018-11-16 | Gas diffusion box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373506.1A CN109342366B (en) | 2018-11-16 | 2018-11-16 | Gas diffusion box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109342366A CN109342366A (en) | 2019-02-15 |
| CN109342366B true CN109342366B (en) | 2023-12-19 |
Family
ID=65316055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811373506.1A Active CN109342366B (en) | 2018-11-16 | 2018-11-16 | Gas diffusion box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109342366B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204461827U (en) * | 2015-01-14 | 2015-07-08 | 郑州广众科技发展有限公司 | A kind of air compressor machine integrated gas vasculum |
| CN205774928U (en) * | 2016-06-01 | 2016-12-07 | 温州隆润科技有限公司 | High-temperature diffusion equipment for silicon wafer |
| CN207689208U (en) * | 2017-12-14 | 2018-08-03 | 上海莱帝科技有限公司 | A kind of universal gas collection device of diffusion type stationary gas detector |
| CN209198314U (en) * | 2018-11-16 | 2019-08-02 | 徐州江煤科技有限公司 | A kind of gas diffusion case |
-
2018
- 2018-11-16 CN CN201811373506.1A patent/CN109342366B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204461827U (en) * | 2015-01-14 | 2015-07-08 | 郑州广众科技发展有限公司 | A kind of air compressor machine integrated gas vasculum |
| CN205774928U (en) * | 2016-06-01 | 2016-12-07 | 温州隆润科技有限公司 | High-temperature diffusion equipment for silicon wafer |
| CN207689208U (en) * | 2017-12-14 | 2018-08-03 | 上海莱帝科技有限公司 | A kind of universal gas collection device of diffusion type stationary gas detector |
| CN209198314U (en) * | 2018-11-16 | 2019-08-02 | 徐州江煤科技有限公司 | A kind of gas diffusion case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109342366A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202502025U (en) | Device for high pressure isothermal absorption experiment of coal | |
| CN103018132B (en) | Dynamic deformation characteristic testing method in coal body adsorption and desorption process | |
| CN202994396U (en) | Air tightness detection device for air-tight door of nuclear power station under constant pressure | |
| CN202903434U (en) | A detecting device | |
| CN102305619B (en) | Detection method and measuring system for piston gradient of dry gas tank | |
| CN108760188A (en) | A kind of automatic detection device and system | |
| CN207675388U (en) | A kind of double-station sealing detection system | |
| CN100558227C (en) | A kind ofly can control CO 2The plant growing culture apparatus of concentration | |
| CN109342366B (en) | Gas diffusion box | |
| CN203644292U (en) | Fire testing box capable of chancing low air pressure and oxygen concentration | |
| CN201368789Y (en) | Hydrogen fuel cell leakage detecting device | |
| CN209729008U (en) | It is a kind of to be easily installed mobile gas leakage alarming device | |
| CN204142420U (en) | Vacuum and leak rate Multifunctional school standard apparatus | |
| CN203299340U (en) | Photovoltaic assembly test system | |
| CN104406794A (en) | Experimental device for detecting aeroengine guider | |
| CN110060451A (en) | It is a kind of to be easily installed mobile gas leakage alarming device | |
| CN209198314U (en) | A kind of gas diffusion case | |
| CN213424193U (en) | Combustible gas detection alarm calibrating device | |
| CN205506313U (en) | Self -rescuer gas tightness detection device | |
| CN105675208B (en) | Vacuum and leak rate Multifunctional school standard apparatus | |
| CN100585356C (en) | Device for remote pressing and detecting leakage of high internal pressure battery | |
| CN103645298B (en) | A kind of test method measuring Characteristics of Damaged Rock Salt self-recoverage amount | |
| CN208636188U (en) | A kind of oxygen barrier ultraviolet ray ageing simulation box of asphalt material | |
| CN204756426U (en) | Full -automatic type SF6 electrical equipment aerating device | |
| CN208239041U (en) | A kind of big heat sink micrometeor detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |