CN216431232U - Air supply device and laboratory air supply and exhaust system - Google Patents
Air supply device and laboratory air supply and exhaust system Download PDFInfo
- Publication number
- CN216431232U CN216431232U CN202122905115.3U CN202122905115U CN216431232U CN 216431232 U CN216431232 U CN 216431232U CN 202122905115 U CN202122905115 U CN 202122905115U CN 216431232 U CN216431232 U CN 216431232U
- Authority
- CN
- China
- Prior art keywords
- gas
- air
- gas cylinder
- cylinder
- valve
- 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
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses an air feeder, it includes air feed control subassembly and distribution subassembly, and the distribution subassembly is equipped with 2 at least air feed ends, and the air feed control subassembly includes gas cylinder, one-level relief pressure valve and control flap, and one-level relief pressure valve and gas cylinder and control flap intercommunication, and the distribution subassembly includes flow controller and multi-way joint, and flow controller and control flap and multi-way joint intercommunication, multi-way joint intercommunication have branch's gas circuit, branch's gas circuit and air feed end intercommunication, and terminal relief pressure valve is installed to branch's gas circuit. Also discloses a laboratory air supply and exhaust system, which comprises an exhaust device and the air supply device. The utility model discloses the beneficial effect who gains: the advantage that air feed pressure and air feed flow are stable has been reached, simple structure, and is rationally distributed, can carry out laser induction puncture spectrum experiment and laser absorption spectrum experiment simultaneously, has guaranteed the high efficiency of laboratory gas, facilitates for detecting to can play the effect that reduces the energy consumption, save the energy.
Description
Technical Field
The utility model relates to a gas supply system's technical field, concretely relates to gas supply device and laboratory air feed exhaust system.
Background
During laboratory experimental studies, gases are often used, such as laser-induced breakdown spectroscopy and laser absorption spectroscopy. Laser Induced Breakdown Spectroscopy (LIBS) is a new atomic emission spectroscopy analysis technology and is mainly used for detecting various types of substances such as solid, liquid and gas at present. In addition, different environmental gases (e.g. air, CO) are analyzed by comparison2，N2Ar) to find the optimal experimental conditions to improve the measurement accuracy of LIBS technique. Laser absorption spectroscopy, such as the violet-heterodyne optical spectroscopy (DOAS) and tunable semiconductor laser absorption spectroscopy (TDLAS), is mainly used to detect the concentration of gases.
The laser-induced breakdown spectroscopy and the laser absorption spectroscopy both need to use gas when corresponding experimental research is carried out, but gas supply of technical research in the same laboratory at present basically shares the same system, so that the supply requirements of various technical researches cannot be met, namely, the experimental research of the laser-induced breakdown spectroscopy and the laser absorption spectroscopy cannot be carried out simultaneously.
The utility model discloses a chinese utility model patent that bulletin number is CN209102693U discloses a gaseous detector examination machine air feeder of multistation, including a plurality of air feed bottles, with a plurality of the gas distribution mechanism and the multichannel that the air feed bottle is connected with gas distribution mechanism connect and be the vent line of a plurality of gaseous detector gas transmission respectively, each the air feed bottle respectively through the air supply pipe with gas distribution mechanism connects, be provided with relief pressure valve and first valve on the air supply pipe, vent line include a plurality of respectively with the branch breather pipe that gas distribution mechanism connects, be provided with the second valve on the branch breather pipe, be used for detecting air feed flow's flow sensor and be used for detecting the gas sensor of gas leakage. The gas supply to the gas detectors is realized, and the gas supply of gas with different concentrations is realized, so that the verification requirements of the gas detectors with different concentrations are met. However, when the valves are opened and closed by controlling the gas flow of the branch gas pipes, the gas pressure and flow rate may be unstable, and in a serious case, the experimental research may be adversely affected.
Therefore, the air supply system in the prior art has the problem of unstable air supply pressure and flow.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the present invention is to provide an air supply device, which includes an air supply control assembly and an air distribution assembly. Also provides a laboratory air supply and exhaust system, which comprises an exhaust device and the air supply device. The air supply device has the advantages of stable air supply pressure and air supply flow.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides an air feeder, includes air feed control subassembly and distribution subassembly, and the distribution subassembly is equipped with 2 at least air feed ends, air feed control subassembly includes gas cylinder, one-level relief pressure valve and control flap, one-level relief pressure valve both ends communicate with gas cylinder and control flap respectively, and the distribution subassembly includes flow controller and multi-ported connector, the flow controller both ends communicate with control flap and multi-ported connector respectively, multi-ported connector intercommunication has 2 at least branch gas circuits, at least 2 branch gas circuits communicate with 2 at least air feed ends respectively, terminal relief pressure valve is installed to branch gas circuit. By such an arrangement: make the gas pressure of branch gas circuit anterior segment be greater than the gas pressure of air feed end to guarantee that the pressure and the flow after gaseous through the terminal relief pressure valve remain stable, make the experiment platform obtain the very stable gas of pressure and flow, satisfy the demand of experimental study, and have the better advantage of reliability, reached the stable advantage of air feed pressure and air feed flow.
Preferably, the branch gas circuit is provided with a terminal valve, and the terminal valve is arranged at the gas inlet end of the terminal pressure reducing valve. By such an arrangement: the on-off of different branch gas circuits can be controlled respectively, and the function of conveniently controlling gas is achieved.
Preferably, a high-pressure hose is arranged between the primary pressure reducing valve and the gas cylinder, and two ends of the high-pressure hose are respectively communicated with the primary pressure reducing valve and the gas cylinder. By such an arrangement: the gas cylinder replacing device can replace the gas cylinder conveniently, and is convenient to use and high in applicability.
Preferably, the gas cylinder is provided with an anti-corrosion fixing piece. By such an arrangement: play the effect of fixed gas cylinder, prevent that the gas cylinder accident from rocking and falling.
Preferably, the branch gas circuit is provided with a fire retardant valve, and the fire retardant valve is arranged at the gas outlet end of the terminal pressure reducing valve. By such an arrangement: the function of improving the safety of the pipeline and protecting the terminal pressure reducing valve is achieved.
Preferably, the number of the gas cylinders is 8, and 8 gas cylinders respectively adopt SO2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2Gas cylinders and Ar gas cylinders. By such an arrangement: can provide various different gases for the experiment platform, play the effect of conveniently carrying out experimental study.
Preferably, the number of the gas supply ends is 2, 2 the gas supply ends are respectively a first gas supply end and a second gas supply end, and the first gas supply end is respectively connected with the SO2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2The gas storage cylinder is communicated with the Ar gas storage cylinder, and the second gas supply end is respectively communicated with the CO2Gas cylinder, N2The gas cylinder is communicated with the Ar gas cylinder. By such an arrangement: the laser absorption spectrum experiment and the laser induced breakdown spectrum experiment can be conveniently carried out.
The utility model provides a laboratory air feed exhaust system, includes exhaust apparatus and the air feeder among the above-mentioned, exhaust apparatus includes universal cover and fan, fan and universal cover intercommunication, universal cover sets up the air feed end department at air feeder. By such an arrangement: the air exhaust device has the advantages of playing an air exhaust function, preventing the experimental gas concentration of air in a laboratory from being too high, and playing a role in improving safety and facilitating experimental research.
Preferably, still include gas leakage alarm device, gas leakage alarm device includes detecting element and alarm unit, detecting element sets up in gas supply installation department, detecting element and alarm unit electric connection. By such an arrangement: the safety of a laboratory is ensured, and laboratory personnel are reminded to timely treat leakage sources.
Preferably, the alarm unit comprises an audible alarm element and a light alarm element. By such an arrangement: the horn and the warning lamp respectively send out warning prompt tone and warning light, thereby arousing the attention of laboratory personnel and reminding the laboratory personnel to deal with the leakage source in time.
Compared with the prior art, the utility model discloses profitable technological effect has been obtained:
1. the pressure of the compressed gas in the gas cylinder is higher, and the gas input into the gas supply control assembly is reduced through the primary pressure reducing valve. Often atmospheric pressure has the difference among the gas cylinder of difference, and reduces along with the reduction of residual gas in the gas cylinder, through the setting of first relief pressure valve, can make the gaseous atmospheric pressure after the one-level relief pressure valve remain stable to can reduce the sealed grade of one-level relief pressure valve rear end pipeline, reduce manufacturing cost, and can effectively improve the reliability.
2. Further reduce gaseous atmospheric pressure through the terminal relief pressure valve, make gaseous atmospheric pressure accord with the user demand of experiment platform to play the function of adjusting gaseous atmospheric pressure, play the effect of facilitating the use, reduce the influence each other of air feed end.
3. Because this air feeder has 2 at least branch gas circuits, when the gas on the branch gas circuit of difference flows, the atmospheric pressure of branch gas circuit anterior segment can change. Through the setting of terminal relief pressure valve, the gas pressure that makes branch gas circuit anterior segment is greater than the gas pressure of air feed end to guarantee that gas pressure and flow after through the terminal relief pressure valve remain stable, make the experiment platform obtain pressure and the very stable gas of flow, satisfy the demand of experimental study, and have the better advantage of reliability, reached the stable advantage of air feed pressure and air feed flow. Simple structure, it is rationally distributed, utilize this air feeder, can carry out laser induction puncture spectrum experiment and laser absorption spectrum experiment simultaneously, guarantee the high efficiency of laboratory gas, for detecting provide facility to can play the effect that reduces the energy consumption, save the energy.
Drawings
FIG. 1 is a schematic structural view of an air supply device in embodiment 1 of the present invention
Fig. 2 is a schematic structural view of a gas supply control assembly in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a branch gas circuit in embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a laboratory air supply and exhaust system in embodiment 2 of the present invention.
Wherein, the technical characteristics that each reference numeral refers to are as follows:
10. an air supply control assembly; 11. a gas cylinder; 12. a primary pressure reducing valve; 13. a control valve; 14. a high pressure hose; 15. an anticorrosive fixing member; 20. a gas distribution assembly; 21. a flow controller; 22. a multi-way joint; 23. a branch gas circuit; 24. a terminal pressure reducing valve; 25. a terminal valve; 26. a fire relief valve; 27. a gas supply end; 28. a meter; 30. an exhaust device; 31. a universal cover; 32. a fan; 40. a gas leakage alarm device; 41. a detection unit; 42. an alarm unit; 50. and an air supply device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example 1:
referring to fig. 1, an air supply device 50 comprises an air supply control assembly 10 and an air distribution assembly 20, wherein the air distribution assembly 20 is provided with 2 air supply ends 27, and the air supply ends 27 are communicated to a laboratory platform of a laboratory.
If fig. 1 and fig. 2, gas supply control assembly 10 includes gas cylinder 11, one-level relief pressure valve 12 and control flap 13, and gas cylinder 11 is used for storing the compressed gas that experimental study used, and gas cylinder 11 is equipped with anticorrosive mounting 15, and anticorrosive mounting 15 can prevent corrosive gas destruction anticorrosive mounting's structure through anticorrosive treatment. Two ends of the primary pressure reducing valve 12 are respectively communicated with the gas bottle 11 and the control valve 13, a high-pressure hose 14 is arranged between the primary pressure reducing valve 12 and the gas bottle 11, two ends of the high-pressure hose 14 are respectively communicated with the primary pressure reducing valve 12 and the gas bottle 11, and gas in the gas bottle 11 flows into the primary pressure reducing valve 12 through the high-pressure hose 14. The gas cylinders 11, the primary pressure reducing valves 12 and the control valves 13 are all provided in a plurality, and the plurality of gas cylinders 11, the plurality of primary pressure reducing valves 12 and the plurality of control valves 13 correspond to one another.
Referring to fig. 1 and 3, the air distribution assembly 20 includes a flow rate controller 21 and a multi-way joint 22, where the flow rate controller 21 and the multi-way joint 22 are provided in plurality, and in this embodiment, the multi-way joint 22 is a tee. The two ends of the flow controller 21 are respectively communicated with the control valve 13 and the multi-way joint 22, and the plurality of flow controllers 21 correspond to the plurality of control valves 13 one by one. The multi-way connector 22 is communicated with 2 branch air paths 23, the 2 branch air paths 23 are respectively communicated with 2 air supply ends 27, and the branch air paths 23 are provided with terminal pressure reducing valves 24. The branch gas path 23 is provided with a terminal valve 25, and the terminal valve 25 is provided at an inlet end of the terminal pressure reducing valve 24. The branch gas circuit 23 is further provided with a meter 28, and the meter 28 can play a role in detecting the gas flow flowing to the experiment platform through the branch gas circuit 23, so that the effects of conveniently detecting and controlling the gas flow are achieved. The branch gas path 23 is provided with a fire relief valve 26, and the fire relief valve 26 is arranged at the gas outlet end of the terminal pressure reducing valve 24.
The primary pressure reducing valve 12, the control valve 13, the flow controller 21, the multi-way connector 22, the terminal valve 25, the terminal pressure reducing valve 24, the fire relief valve 26 and the gauge 28 are communicated through pipelines which are distributed along the wall of a laboratory, so that the space is saved, and enough floor space is reserved for steel cylinders. The primary pressure reducing valve 12 and the terminal pressure reducing valve 24 are installed on the pipeline in a clamping connection mode. The pipeline adopts seamless welding to guarantee the gas tightness of pipeline.
8 gas cylinders 11 are arranged, and 8 gas cylinders 11 respectively adopt SO2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2Gas cylinders and Ar gas cylinders. The number of the gas supply ends 27 is 2, the 2 gas supply ends 27 are respectively a first gas supply end and a second gas supply end, and the first gas supply end is respectively connected with the SO2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2The gas storage cylinder is communicated with the Ar gas storage cylinder, and the second gas supply end is respectively communicated with the CO2Gas cylinder, N2The gas storage bottle is communicated with the Ar gas storage bottle. In the present embodiment, a plurality of joints are provided with 3, 3 multi-way joints 22 respectively connected with the CO2Gas bomb, N2The gas storage cylinder is communicated with the Ar gas storage cylinder, and CO is respectively filled in the gas storage cylinder through 3 multi-way connectors 222Gas bomb, N2The gas in the gas cylinder and the Ar gas cylinder are communicated and conveyed to 2 gas supply ends 27.
When gas supply is needed for experimental research, the control valve 13 is opened in the gas supply control assembly 10, so that the gas in the gas cylinder 11 flows into the gas distribution assembly 20 through the primary pressure reducing valve 12 and the control valve 13. And opening a terminal valve 25 in the gas distribution assembly 20, enabling the gas to flow into a gas supply end 27 through the flow controller 21, the multi-way joint 22, the terminal valve 25, the terminal pressure reducing valve 24 and the fire retardant valve 26, and conveying the gas to an experimental platform through the gas supply end 27, so that experimental research can be carried out by using the gas in the gas cylinder 11.
The embodiment has the following advantages:
the pressure of the compressed gas in the gas cylinder 11 is high, and the gas input into the gas supply control unit 10 is reduced by the primary pressure reducing valve 12. The gas pressure in different gas cylinders 11 often differs to some extent, and the gas pressure after passing through the first-stage pressure reducing valve 12 can be kept stable through the arrangement of the first pressure reducing valve, so that the sealing grade of a pipeline at the rear end of the first-stage pressure reducing valve 12 can be reduced, the manufacturing cost is reduced, and the reliability can be effectively improved.
Further reduce gaseous atmospheric pressure through terminal relief pressure valve 24, make gaseous atmospheric pressure accord with experiment platform's user demand to play the function of adjusting gaseous atmospheric pressure, play the effect of facilitating the use, reduce the influence each other of air feed end 27.
Since the air supply device 50 has 2 branch air paths 23, when the air flows on different branch air paths 23, the air pressure at the front section of the branch air path 23 will change. Through the setting of terminal relief pressure valve 24, the gas pressure that makes branch gas circuit 23 anterior segment is greater than the gas pressure of air feed end 27 to guarantee that the pressure and the flow after gaseous through terminal relief pressure valve 24 remain stable, make the experiment platform obtain the gas that pressure and flow are very stable, satisfy the demand of experimental study, and have the better advantage of reliability, reached the stable advantage of air feed pressure and air feed flow.
The on-off of the branch gas paths 23 is controlled by the terminal valves 25, so that the on-off of different branch gas paths 23 can be respectively controlled by the terminal valves 25 on different branch gas paths 23, and the function of conveniently controlling gas is achieved.
When changing gas cylinder 11, can be that high pressure hose 14 is crooked and be connected to on new gas cylinder 11 to can play the effect of conveniently changing gas cylinder 11, even there is certain difference in the mounted position of new gas cylinder 11 and angle and also can connect through high pressure hose 14, play facilitate the use and improve the effect of suitability.
Anticorrosive mounting 15 is fixed in the laboratory through anticorrosive treatment after, installs gas cylinder 11 on anticorrosive mounting 15, plays the effect of fixed gas cylinder 11, prevents that gas cylinder 11 accident from rocking and falling.
Through the setting of back-fire relief valve 26, play the effect that improves the pipeline security. The positioning of the fire relief valve 26 at the outlet end of the final pressure relief valve 24 serves to protect the final pressure relief valve 24.
By SO2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2The setting of gas bomb and Ar gas bomb can provide multiple different gas for the experiment platform, plays the effect that conveniently carries out experimental study.
The gas supply device can provide required gas for laser absorption spectrum experiments and laser-induced breakdown spectrum experiments on an experiment platform, and plays a role in conveniently carrying out the laser absorption spectrum experiments and the laser-induced breakdown spectrum experiments.
Example 2:
referring to fig. 4, a laboratory gas supply and exhaust system includes an exhaust apparatus 30, a gas leakage alarming apparatus 40, and a gas supply apparatus 50 as described above.
The exhaust device 30 comprises a universal cover 31 and a fan 32, the fan 32 being in communication with the universal cover 31, the universal cover 31 being arranged at the air supply end 27 of the air supply device 50.
The gas leakage alarm device 40 comprises a detection unit 41 and an alarm unit 42, wherein the detection unit 41 is arranged at the gas supply device 50, and the detection unit 41 is electrically connected with the alarm unit 42. The detecting unit 41 is installed at the SO2Gas cylinder, NO2Gas cylinder, and CO gas cylinder. The alarm unit 42 includes an audible alarm element and a light alarm element. In this embodiment, the sound alarm component is a horn, and the light alarm component is a warning light. The detection unit 41 is a gas detector for detecting flammable and explosive gases and toxic gases.
The present embodiment has the following advantages:
the universal cover 31 is arranged above the experiment platform, and the universal cover 31 is communicated with the fan 32 to be communicated to the outside atmosphere, so that the air around the experiment platform can be discharged to the outside atmosphere through the fan 32 and the universal cover 31. When the experiment platform discharges gas in carrying out the experimental study process, the fan 32 orders about the air flow in the universal cover 31, and the air around the experiment platform is discharged outside atmosphere through universal cover 31 and fan 32 through the universal cover 31 guide, plays carminative function, prevents that the experimental gas concentration of air in the laboratory is too high, plays the effect that improves the security and conveniently carry out the experimental study.
Whether flammable and combustible and toxic gases are leaked is detected by the detection unit 41. When the detecting unit 41 detects that flammable and explosive gas or toxic gas leaks, the detecting unit 41 sends an alarm signal to the alarm unit 42 to trigger the alarm unit 42 to send an alarm, so that the safety of a laboratory is ensured, and laboratory personnel are reminded to timely treat a leakage source.
When the alarm unit 42 receives the alarm signal, the horn and the warning lamp respectively emit an alarm prompt tone and an alarm light, thereby drawing the attention of the laboratory staff and reminding the laboratory staff to deal with the leakage source in time.
Example 3:
an air supply device which is different from embodiment 1 in that: the gas cylinder is connected with the first-stage pressure reducing valve through a stainless steel high-pressure corrugated hose.
The embodiment has the following advantages:
the gas cylinder can meet the requirement of gas delivery, so that gas in the gas cylinder can flow into the primary pressure reducing valve, and the effect of conveniently replacing the gas cylinder can be achieved.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.
Claims (10)
1. An air supply device (50) comprises an air supply control assembly (10) and an air distribution assembly (20), wherein the air distribution assembly (20) is provided with at least 2 air supply ends (27), and is characterized in that: air feed control subassembly (10) include gas cylinder (11), one-level relief pressure valve (12) and control flap (13), one-level relief pressure valve (12) both ends communicate with gas cylinder (11) and control flap (13) respectively, and distribution subassembly (20) include flow controller (21) and lead to connect (22) more, flow controller (21) both ends communicate with control flap (13) and lead to connect (22) more respectively, lead to connect (22) intercommunication more and have 2 at least branch gas circuit (23), at least 2 branch gas circuit (23) communicate with 2 at least air feed end (27) respectively, terminal relief pressure valve (24) are installed in branch gas circuit (23).
2. Gas supply device (50) according to claim 1, characterized in that: and a terminal valve (25) is installed on the branch air passage (23), and the terminal valve (25) is arranged at the air inlet end of the terminal pressure reducing valve (24).
3. Gas supply device (50) according to claim 1, characterized in that: and a high-pressure hose (14) is arranged between the primary pressure reducing valve (12) and the gas cylinder (11), and two ends of the high-pressure hose (14) are respectively communicated with the primary pressure reducing valve (12) and the gas cylinder (11).
4. Gas supply device (50) according to claim 3, characterized in that: the gas cylinder (11) is provided with an anti-corrosion fixing piece (15).
5. Gas supply device (50) according to claim 1, characterized in that: and the branch gas circuit (23) is provided with a fire retardant valve (26), and the fire retardant valve (26) is arranged at the gas outlet end of the terminal pressure reducing valve (24).
6. Gas supply device (50) according to claim 1, characterized in that: the number of the gas cylinders (11) is 8, and SO is respectively adopted by the gas cylinders (11)2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2Gas cylinders and Ar gas cylinders.
7. Gas supply device (50) according to claim 6, characterized in that: the gas supply end (27) is provided with 2 gas supply ends (27), 2 gas supply ends (27) are respectively a first gas supply end and a second gas supply end, and the first gas supply end is respectively connected with the SO2Gas cylinder, NO2Gas cylinder, O2Gas cylinder, CO2Gas cylinder, N2The gas storage cylinder is communicated with the Ar gas storage cylinder, and the second gas supply end is respectively communicated with the CO2Gas cylinder, N2The gas cylinder is communicated with the Ar gas cylinder.
8. A laboratory air supply and exhaust system is characterized in that: the air supply device (50) comprises an air exhaust device (30) and the air supply device (50) as claimed in any one of claims 1-5, wherein the air exhaust device (30) comprises a universal cover (31) and a fan (32), the fan (32) is communicated with the universal cover (31), and the universal cover (31) is arranged at an air supply end (27) of the air supply device (50).
9. Laboratory gas supply and exhaust system according to claim 8, characterized in that: still include gas leakage alarm device (40), gas leakage alarm device (40) include detecting element (41) and alarm unit (42), detecting element (41) set up in gas supply installation (50) department, detecting element (41) and alarm unit (42) electric connection.
10. Laboratory gas supply and exhaust system according to claim 9, characterized in that: the alarm unit (42) comprises an acoustic alarm element and a light alarm element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905115.3U CN216431232U (en) | 2021-11-19 | 2021-11-19 | Air supply device and laboratory air supply and exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905115.3U CN216431232U (en) | 2021-11-19 | 2021-11-19 | Air supply device and laboratory air supply and exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216431232U true CN216431232U (en) | 2022-05-03 |
Family
ID=81339612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122905115.3U Active CN216431232U (en) | 2021-11-19 | 2021-11-19 | Air supply device and laboratory air supply and exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216431232U (en) |
-
2021
- 2021-11-19 CN CN202122905115.3U patent/CN216431232U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9488627B2 (en) | Automated stationary gas sensor calibration system and method | |
| JP6265166B2 (en) | Monitoring system for hydrogen leakage from conduit | |
| US8621913B2 (en) | Use of hydrogen sensor to detect hydrogen storage system pressure regulator failure | |
| WO2021250171A3 (en) | Valve device, intank valve and gas pressure accumulator system, in particular for fuel cell systems, and method for detecting a leakage | |
| US20100172796A1 (en) | Metal hydride storage system for a portable, intrinsically safe, flame ionization detector (FID) device | |
| CN209893115U (en) | Safe conveying device for high-pressure combustible experimental gas | |
| US6526808B1 (en) | Smoke and clean air generating machine for detecting presence and location of leaks in a fluid system | |
| CN216431232U (en) | Air supply device and laboratory air supply and exhaust system | |
| US20110197659A1 (en) | Method for determining an overall leakage rate of a vacuum system and vacuum system | |
| US11604179B2 (en) | Gas sensor testing system and method | |
| JP6632557B2 (en) | Sampling system | |
| CN206530881U (en) | Hydrogen supply pipe leakage and the structure of reduction explosion danger in a kind of detection main building | |
| JP2001522994A (en) | Sample search system | |
| KR101862694B1 (en) | Shielding structure for gas valve train | |
| EP2142840B1 (en) | Pipeline for transport of gas | |
| PL438444A1 (en) | System for detecting biomarkers in the air exhaled from the patient's lungs and method for detecting biomarkers in the air exhaled from the patient's lungs | |
| CN218099029U (en) | Gas chromatography system | |
| CN218565136U (en) | Safe conveying device for high-pressure combustible explosive experimental gas | |
| CN206459019U (en) | A kind of pipeline gas transmission station anti-leak alarm and technological processing for explosion protection feature device | |
| EP3637079A1 (en) | Gas leak sensing system and gas leak sensing method | |
| CN220038197U (en) | Special gas flow dividing valve box | |
| US6215406B1 (en) | Apparatus and method for detecting ignited flammable gas in a conduit | |
| CN217181663U (en) | Gas alarm calibrating device | |
| US11821564B2 (en) | Method and apparatus to export fluid without discharge | |
| CN220061450U (en) | Gas supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |