CN211040473U - Gas supply device for toxic gas detection - Google Patents
Gas supply device for toxic gas detection Download PDFInfo
- Publication number
- CN211040473U CN211040473U CN201921429408.5U CN201921429408U CN211040473U CN 211040473 U CN211040473 U CN 211040473U CN 201921429408 U CN201921429408 U CN 201921429408U CN 211040473 U CN211040473 U CN 211040473U
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- flow
- standard
- control assembly
- 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 relates to a gas supply device for toxic gas detection, which comprises a ventilation box, a gas marking box, a plurality of groups of pressure control components and a plurality of groups of flow control components; the ventilation box is connected with the standard gas box through an exhaust pipe, and a plurality of standard gas cylinders are arranged in the standard gas box; each standard gas cylinder is connected with a pressure control assembly, the pressure control assembly is used for controlling the standard gas pressure of the standard gas cylinder, the pressure control assembly comprises a first pressure gauge, a second pressure gauge and a pressure adjusting assembly, and the pressure adjusting assembly is arranged between the first pressure gauge and the second pressure gauge; the flow control assembly is connected with the pressure control assembly, the flow control assembly is used for controlling the standard gas flow of the standard gas cylinder, the flow control assembly comprises a flow adjusting assembly, a flow meter and a flow valve, and the flow meter is arranged between the flow adjusting assembly and the flow valve. The utility model discloses can leak toxic gas and take effectual protection and treatment, improve experimental security to can control every kind of toxic gas's pressure and flow, improve experiment efficiency and accuracy.
Description
Technical Field
The invention relates to the technical field of toxic and harmful gas treatment, in particular to a gas supply device for toxic gas detection.
Background
The measuring and detecting process of the poisonous and harmful gas detecting alarm instrument (analyzer) is that the gas standard substance is conveyed to the detected instrument, and the qualification of the detected instrument is determined by comparing the display value of the instrument with the concentration value of the standard substance. At present, a pressure reducing valve is usually arranged on an aluminum alloy gas cylinder in a laboratory, and then the pressure reducing valve is connected with a flowmeter, and then a polytetrafluoroethylene pipe is connected with a detected instrument to perform metering work. However, the toxic gases are in a wide variety: carbon monoxide, hydrogen sulfide, sulfur dioxide and ammonia etc, generally measure 2 to 3 concentration points according to metrological verification regulation requirement and need many bottles of mark gas promptly, laboratory mark gas bottle has a lot like this, mark gas all can be used every day about 20 bottles usually, these gas bottles can generally be adorned the relief pressure valve for use and place on the ground of fume hood limit for convenient operation, there is easy the risk of being knocked down, fall down and probably cause the relief pressure valve fracture to lead to the fact the poison gas to leak greatly, and the relief pressure valve also probably has little leakage in thread joint department along with the increase of live time, all be the potential safety hazard, and the gas cylinder that needs to be used is also more time consuming to the incessant look for in the during operation, work efficiency is low, incessant take out the gas cylinder from the fume hood and take in and more increased the amount of labour and increased the gas cylinder collision and examined the instrument and risk of falling down, be the urgent problem that needs.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a gas supply device for detecting toxic gas, which can take effective protection and treatment measures against the leakage of toxic gas, improve the safety of the test process, precisely control the pressure and flow rate of each toxic gas, and improve the efficiency and accuracy of the test.
In order to solve the above problems, the present invention provides a gas supply device for detecting toxic gas, comprising: the device comprises a ventilation box, a standard gas box, a plurality of groups of pressure control assemblies and a plurality of groups of flow control assemblies;
the ventilation box is connected with the standard gas box through an exhaust pipe, and a plurality of standard gas cylinders are arranged in the standard gas box;
each standard gas cylinder is connected with the pressure control assembly, the pressure control assembly is used for controlling the standard gas pressure of the standard gas cylinder, the pressure control assembly comprises a first pressure gauge, a second pressure gauge and a pressure adjusting piece, and the pressure adjusting piece is arranged between the first pressure gauge and the second pressure gauge;
the flow control assembly is connected with the pressure control assembly and used for controlling the standard gas flow of the standard gas cylinder, and the flow control assembly comprises a flow adjusting assembly, a flow meter and a flow valve, wherein the flow meter is arranged between the flow adjusting assembly and the flow valve.
Further, the ventilation box is provided with an air outlet pipe, and the air outlet pipe is communicated with the exhaust pipe.
Furthermore, the ventilation box is also provided with a control panel, the control panel is electrically connected with a lifting mechanism in the device, and the control panel is used for controlling the opening or closing of the lifting mechanism in the device to realize the lifting of the device.
Further, the number of the standard gas cylinders is 10-30, and the standard gas cylinders are used for storing different toxic standard gases.
Further, the standard gas cylinders correspond to the pressure control assemblies one by one.
Furthermore, the pressure control assemblies correspond to the flow control assemblies one by one, and the pressure control assemblies and the flow control assemblies are 10-30 groups.
Further, the pressure regulating member is a pressure regulating valve.
Further, the flow regulating member is a needle valve.
Further, the pressure control assembly and the flow control assembly both adopt non-adsorption materials.
Due to the technical scheme, the invention has the following beneficial effects:
1) the gas supply device for detecting the toxic gas is convenient for placing the standard gas cylinder storing the toxic gas, avoids the standard gas cylinder from being knocked down to leak gas, improves the safety of the test process, and effectively protects test workers;
2) according to the gas supply device for detecting the toxic gas, disclosed by the invention, when the standard gas cylinder storing the toxic gas is slightly leaked, the toxic gas can be collected and discharged, the safety of the test process is improved, and test workers are effectively protected;
3) according to the gas supply device for detecting the toxic gas, disclosed by the invention, the flow and the pressure of each toxic gas are correspondingly controlled through the control assembly in the test process, so that the test efficiency and the test accuracy are improved, and the workload of test workers is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a gas supply device for detecting toxic gas according to an embodiment of the present invention.
In the figure, 1-ventilation box, 11-air outlet pipe, 2-standard gas box, 3-pressure control component, 31-first pressure gauge, 32-second pressure gauge, 33-pressure regulating component, 4-flow control component, 41-flow regulating component, 42-flowmeter and 43-flow valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
In one embodiment, a gas supply device for detecting toxic gas is provided, as shown in fig. 1, the gas supply device includes: the device comprises a ventilation box 1, a standard air box 2, a plurality of groups of pressure control assemblies 3 and a plurality of groups of flow control assemblies 4;
the ventilation box 1 is connected with the gas marking box 2 through an exhaust pipe, and a plurality of standard gas cylinders are arranged in the gas marking box 2;
each standard gas cylinder is connected with the pressure control assembly 3, the pressure control assembly 3 is used for controlling the standard gas pressure of the standard gas cylinder, the pressure control assembly 3 comprises a first pressure gauge 31, a second pressure gauge 32 and a pressure regulating part 33, and the pressure regulating part 33 is arranged between the first pressure gauge 31 and the second pressure gauge 32;
the flow control assembly 4 is connected with the pressure control assembly 3, the flow control assembly 4 is used for controlling the standard gas flow of the standard gas cylinder, the flow control assembly 4 comprises a flow adjusting member 41, a flow meter 42 and a flow valve 43, and the flow meter 42 is arranged between the flow adjusting member 41 and the flow valve 43.
Specifically, ventilation box 1 is equipped with out tuber pipe 11, go out tuber pipe 11 with the blast pipe intercommunication.
Specifically, ventilation box 1 still is equipped with control panel, control panel with elevating system electricity in the device is connected, control panel is used for controlling elevating system's in the device is opened or is closed, can adjust according to experimental staff's height, realizes the device goes up and down, satisfies the work demand that detects the instrument of waiting to detect of great or higher type.
Specifically, the number of the standard gas cylinders is 10-30, and the standard gas cylinders are used for storing different toxic standard gases, such as carbon monoxide gas, hydrogen sulfide gas, sulfur dioxide gas, ammonia gas and other toxic and harmful gases.
Preferably, the number of the standard gas cylinders is 20.
The standard gas cylinders correspond to the pressure control assemblies 3 one by one, each standard gas is provided with a gas cylinder valve, each gas cylinder valve is connected with the corresponding first pressure gauge 31, and the first pressure gauge 31 is used for detecting the pressure of residual gas in the standard gas cylinders.
Further, the pressure adjusting member 33 is a pressure adjusting valve.
Further, the second pressure gauge 32 is configured to detect the pressure of the gas adjusted by the pressure adjusting member 33.
Specifically, the pressure control assemblies 3 correspond to the flow control assemblies 4 one by one, and the pressure control assemblies 3 and the flow control assemblies 4 are 10-30 groups.
Preferably, the pressure control assembly 3 and the flow control assembly 4 are 20 sets.
Further, the flow rate adjusting member 41 is a needle valve for roughly and rapidly adjusting the flow rate of the pilot gas.
Further, the flow meter 42 is a rotameter for precisely adjusting the flow rate of the standard gas.
Furthermore, the flow valve 43 is a ball valve, and the effect that the output flow is the same for several times before and after the ball valve is opened and closed repeatedly can be achieved by opening or breaking the standard gas passage, so that the test precision is improved.
Specifically, the pressure control assembly 3 and the flow control assembly 4 both use non-adsorption materials.
Preferably, the non-adsorbing material is 316L stainless steel or polytetrafluoroethylene.
Specifically, the process of detecting with the gas supply device: opening the gas cylinder valve on the standard gas cylinder, releasing the required standard gas, enabling the pressure of the standard gas to be 0.1MPa through the pressure regulating valve, opening the ball valve to enable the standard gas to be introduced into the ventilation box, quickly regulating the flow through the needle valve, accurately controlling the flow of the standard gas through regulating the rotor flow meter, and finally introducing the regulated standard gas into an instrument to be detected.
Further, the first pressure gauge 31 is displayed below 0.5MPa, and the standard gas cylinder needs to be replaced with a new one.
In some embodiments, hydrogen sulfide gas is taken as an example:
specifically, the data detected by the prior art method are as follows:
1) the data are shown in Table 1:
2) response time test data are shown in table 2:
specifically, the data detected by the gas supply line are as follows:
3) the data are shown in Table 3:
4) response time test data are shown in table 4:
specifically, the data by comparing the detection with the gas supply device with the prior art are as follows:
5) response time test data pairs such as table 5:
6) table 6 shows the ratio of the test data pairs:
further, the air conditioner is provided with a fan,
the establishment indicates that the metering or detection data of the new device is reliable;
x1 and X2 represent test data for both old and new measurement modes;
u1 and U2 are the uncertainty of the measurement results of the two measurements respectively.
Specifically, through data comparison in table 5 and table 6, the En value is greater than 0.1, and it can be found that the error that utilizes gas supply unit to detect is less, and the precision is higher, is favorable to the detection of instrument, guarantees to wait to detect the accuracy of instrument.
The embodiment provides a gas supply device that toxic gas detected, be convenient for store the placing of the standard gas cylinder of toxic gas, avoid standard gas cylinder to be knocked down gas leakage, and when the standard gas cylinder of toxic gas is stored and the trace is leaked, can collect and discharge toxic gas, improve the security of experimental process, effectively protect test personnel, simultaneously carry out the control that corresponds through control assembly to every kind of toxic gas's flow and pressure in the testing process, the efficiency of experiment and the accuracy of experiment have been improved, reduce test personnel's work load.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.
Claims (9)
1. A gas supply device for toxic gas detection, comprising: the device comprises a ventilation box (1), a standard air box (2), a plurality of groups of pressure control assemblies (3) and a plurality of groups of flow control assemblies (4);
the ventilation box (1) is connected with the gas marking box (2) through an exhaust pipe, and a plurality of standard gas cylinders are arranged in the gas marking box (2);
each standard gas cylinder is connected with the pressure control assembly (3), the pressure control assembly (3) is used for controlling the standard gas pressure of the standard gas cylinder, the pressure control assembly (3) comprises a first pressure gauge (31), a second pressure gauge (32) and a pressure adjusting piece (33), and the pressure adjusting piece (33) is arranged between the first pressure gauge (31) and the second pressure gauge (32);
the flow control assembly (4) is connected with the pressure control assembly (3), the flow control assembly (4) is used for controlling the standard gas flow of the standard gas cylinder, the flow control assembly (4) comprises a flow adjusting member (41), a flow meter (42) and a flow valve (43), and the flow meter (42) is arranged between the flow adjusting member (41) and the flow valve (43).
2. The gas supply device for detecting toxic gas according to claim 1, wherein the ventilation box (1) is provided with a wind outlet pipe (11), and the wind outlet pipe (11) is communicated with the exhaust pipe.
3. The gas supply device for detecting toxic gas according to claim 2, wherein the ventilation box (1) is further provided with a control panel, the control panel is electrically connected with a lifting mechanism in the device, and the control panel is used for controlling the opening or closing of the lifting mechanism in the device to realize the lifting of the device.
4. The toxic gas detection gas supply device according to claim 1, wherein the number of the standard gas cylinders is 10-30, and the standard gas cylinders are used for storing different toxic standard gases.
5. A poisonous gas detection supply device according to claim 4, wherein the standard gas cylinders correspond to the pressure control assemblies (3) one by one.
6. The gas supply device for toxic gas detection according to claim 5, wherein the pressure control assemblies (3) and the flow control assemblies (4) correspond to each other one by one, and the pressure control assemblies (3) and the flow control assemblies (4) are 10-30 groups.
7. A supply device for toxic gas detection according to claim 1, wherein the pressure regulating member (33) is a pressure regulating valve.
8. The supply apparatus for toxic gas detection according to claim 1, wherein the flow regulator (41) is a needle valve.
9. A toxic gas detecting gas supply apparatus according to claim 1, wherein the pressure control module (3) and the flow control module (4) are both made of non-adsorption material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429408.5U CN211040473U (en) | 2019-08-30 | 2019-08-30 | Gas supply device for toxic gas detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429408.5U CN211040473U (en) | 2019-08-30 | 2019-08-30 | Gas supply device for toxic gas detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211040473U true CN211040473U (en) | 2020-07-17 |
Family
ID=71530807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921429408.5U Active CN211040473U (en) | 2019-08-30 | 2019-08-30 | Gas supply device for toxic gas detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211040473U (en) |
-
2019
- 2019-08-30 CN CN201921429408.5U patent/CN211040473U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201811870U (en) | A self-starting sampling and analysis device for measuring the concentration of hydrogen in the containment vessel | |
| CN202837151U (en) | Automatic filter efficiency tester | |
| CN104269195B (en) | The implementation method of the experimental system of simulation Nuclear Safety shell basis accident operating mode | |
| CN109307738A (en) | A kind of chlorine alarm calibration method and calibrating installation | |
| CN107993731B (en) | System for monitoring combustibility of gas in containment after serious accident of reactor | |
| CN107389865B (en) | Smoke and dust and smoke flow field simulator in flue | |
| CN107389816A (en) | Gases Dissolved in Transformer Oil on-Line Monitor Device detecting system self-checking device | |
| CN105571969A (en) | Testing device for SCR denitration crystal abrasion strength property and testing method thereof | |
| CN220794611U (en) | Comprehensive detector for respirator | |
| CN108645980A (en) | A kind of gas sensor on-line detecting system and method | |
| CN107782853A (en) | A kind of evaluation system for being used to detect deoxidier performance | |
| CN211040473U (en) | Gas supply device for toxic gas detection | |
| KR101717943B1 (en) | Airtight Test Apparatus for Nuclear Facility | |
| CN106093313A (en) | The silicon dioxide of nuclear power station water filter filter element separates out detection method and the dedicated test system thereof of performance | |
| CN204065065U (en) | A kind of monitoring device for gas-monitoring environment measuring equipment accuracy | |
| CN107146644A (en) | A kind of experimental rig of reactor pressure vessel level sensor functional verification | |
| CN206741942U (en) | A kind of passive hydrogen recombiner efficiency detection device of nuclear power plant | |
| CN112485036A (en) | Oil mist generating device for testing | |
| CN106290718A (en) | Gas analysis and absorption plant | |
| CN111473921A (en) | A detection system for sulfur hexafluoride leakage alarm device | |
| CN211553191U (en) | Ammonia leakage detection equipment | |
| CN205538521U (en) | SCR denitration catalyst wearing and tearing strength character's test device | |
| CN104237468B (en) | A kind of monitoring method for monitoring of environmental checkout equipment accuracy | |
| CN212341161U (en) | Poisonous and harmful gas detector automatic checkout device | |
| CN112000059B (en) | Automatic control system and control method for ammonia online analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |