CN212159704U - Novel dynamic special gas generation test system - Google Patents
Novel dynamic special gas generation test system Download PDFInfo
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- CN212159704U CN212159704U CN202021017029.8U CN202021017029U CN212159704U CN 212159704 U CN212159704 U CN 212159704U CN 202021017029 U CN202021017029 U CN 202021017029U CN 212159704 U CN212159704 U CN 212159704U
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Abstract
The utility model discloses a novel developments special type gas generation test system, include: the device comprises a main generating unit, a monitoring unit and an experimental unit; the main generating unit comprises a generating module, a heat exchange module, a flow control module and a humidifying module; the monitoring unit is used for monitoring the safety and risk early warning of the system and comprises a monitoring module and a display module, and a monitoring interface is reserved in the monitoring unit; the display module is used for displaying by a computer; the experimental unit is composed of a pipeline structure and an air inlet set controller, and a glove box is adopted as a main body of the experimental unit. The utility model discloses a novel developments special gas takes place test system can accomplish liquid special type compound's gaseous state safely, accurately, high-efficiently and take place, establishes specific experimental environment. The system provides an on-line chromatographic concentration real-time monitoring interface.
Description
Technical Field
The utility model relates to a special gas takes place control technical field, and more specifically the utility model relates to a novel developments special gas takes place test system that says so.
Background
With the development of economy, environmental pollution is becoming the focus of people's attention. In recent years, research on detection instruments which can release harmful gases to human bodies in the air, harmful gases generated by explosion of chemical plants and warfare is increasing. The main standards for the research and evaluation of gas detection instruments are sensitivity, stability and precision of gas concentration detection, so that it is necessary to research the standard gas with a certain concentration in a special gas generation and distribution system. In order to develop and evaluate a certain type of gas detector independently developed in China, a mechanical engineering and automation institute of the Siwa university and a research institute of the Chinese people's liberation force cooperate to develop a dynamic generation and distribution system of a specific numerical control type gas.
The research of the automatic control technology for the generation of the special gas is a key technology for supporting the evaluation of chemical detection equipment, aims to safely and reliably simulate the atmosphere of toxic and harmful gas leakage under actual combat conditions, establishes a standard and effective evaluation method of the chemical detection equipment, and completes the evaluation task of the chemical detection equipment in a standard way, and has great significance for ensuring the quality and the practical application performance of the chemical detection equipment developed and introduced by our army, accelerating the continuous forward development of the chemical detection technology of our army and gradually expanding the research field, and meeting the requirements of the chemical detection equipment on carrying out warfare and non-warfare military operations. Therefore, the system evaluation result must be accurate, reliable and authoritative. However, from the past, the special gas generation equipment is far from the development level of the current reagent detection technology, namely, the special gas generation equipment is behind for decades, in the aspect of the quantitative work of the special gas generation, although a lot of achievements are achieved, even breakthrough progress is achieved in the principle prototype research of the special gas generation, the special gas generation method and technology are in the leading position nationwide, there are, however, also low degrees of automation, controlled level differences (fluctuation of about 20%), and many jobs operate mainly empirically, the accuracy, the accuracy and the repeatability of the generation and the quantification of the special gas with extremely low concentration are difficult to ensure, and the evaluation and the research work can be carried out only when one reagent and one concentration value are generated for about 4 hours, so the labor intensity and the danger of workers are increased, and the research and the development of chemical detection equipment are limited.
Therefore, the technical problem to be solved by the technical staff in the art is how to provide a novel dynamic special gas generation test system which can safely, accurately and efficiently complete the gas generation of the liquid special compound and establish a specific test environment.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a novel developments special gas generation test system.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken:
a novel dynamic special gas generation test system comprises:
the device comprises a main generating unit, a monitoring unit and an experimental unit;
the main generating unit comprises a generating module, a heat exchange module, a flow control module and a humidifying module; the generating module consists of a pipeline, an air inlet/outlet, a generating assembly and a generating assembly controller, wherein the air inlet/outlet, the generating assembly and the generating assembly controller are arranged on the pipeline; the heat exchange module consists of a gas pipeline heater arranged on a pipeline and a temperature sensor arranged on the pipeline; the flow control module adopts an air flow controller; the humidifying module consists of a steam generating assembly and a humidity sensor which are arranged on a pipeline;
the monitoring unit is used for monitoring the safety and risk early warning of the system; the monitoring unit is reserved with a generation monitoring interface; the display module is used for displaying by a computer;
the experimental unit is composed of a pipeline structure and an air inlet set controller, and a glove box is adopted as a main body of the experimental unit.
Preferably, the outer shell of the main generating unit is formed by double layers of metal plates, and the inner lining of the main generating unit is provided with heat insulating materials.
Preferably, the generating assembly consists of a plurality of groups of flow injection pumps, a generating pool and a heating body; the flow injection pump is communicated with the pipeline, and the generating pool and the heating body are arranged between the flow injection pump and the pipeline.
Preferably, the steam generating assembly consists of a water tank, a liquid chromatography pump and a gas mixing bottle; the upper end of the liquid chromatographic pump is communicated with the lower end of the gas mixing bottle, and one side of the liquid chromatographic pump is communicated with the water tank.
Preferably, the generating assembly controller and the intake set controller both employ a four-way valve.
Preferably, the safety device further comprises a safety component, a shutoff component, a pressure sensor and a pressure alarm which are arranged on the pipeline.
Preferably, the safety assembly is a plurality of manual valves disposed on the pipeline.
Preferably, the shutoff component consists of an emergency shutoff key, a sample generation system shutoff key and a steam generation system shutoff key.
Preferably, the main generating unit is set to be 1000mm × 1800mm × 900mm in size; and considering factors such as pressure resistance and thermal stability of the steel structure, the size of the structure cannot be smaller than the standard.
Preferably, the dimensions of the experimental unit are set to 900mm × 500mm × 500 mm; the glove box can be customized, processed and considered to be practical, and the proper size is adjusted to meet the practical application.
The utility model discloses for prior art gain following technological effect:
the utility model discloses a novel developments special gas takes place test system can accomplish liquid special type compound's gaseous state safely, accurately, high-efficiently and take place, establishes specific experimental environment. The system provides an on-line chromatographic concentration real-time monitoring interface.
Drawings
FIG. 1 is a schematic diagram of a frame of a novel dynamic special gas generation test system according to the present invention;
FIG. 2 is a schematic diagram of a main generating unit structure of a novel dynamic special gas generating test system of the present invention;
FIG. 3 is a schematic diagram of the structure of an experiment unit of the novel dynamic special gas generation testing system of the present invention;
FIG. 4 is a schematic diagram of the main generation pipeline of the novel dynamic special gas generation testing system of the present invention for generating risks;
FIG. 5 is a schematic view of the risk of the steam generation pipeline of the novel dynamic special gas generation testing system of the present invention;
FIG. 6 is a schematic diagram of the risk of the whole generation pipeline of the novel dynamic special gas generation testing system of the present invention;
in the figure: 1. a main generation unit; 11. a generation module; 12. a heat exchange module; 13. a flow control module; 14. a humidifying module; 2. a monitoring unit; 21. a monitoring module; 22. a display module; 3. and (4) an experimental unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1, a novel dynamic special gas generation test system includes:
the device comprises a main generating unit 1, a monitoring unit 2 and an experimental unit 3;
the main generating unit 1 comprises a generating module 11, a heat exchange module 12, a flow control module 13 and a humidifying module 14; the generating module 11 consists of a pipeline, an air inlet/outlet, a generating assembly and a generating assembly controller, wherein the air inlet/outlet, the generating assembly and the generating assembly controller are arranged on the pipeline; the heat exchange module 12 is composed of a gas pipeline heater arranged on a pipeline and a temperature sensor arranged on the pipeline; the flow control module 13 adopts an air flow controller; the humidifying module 14 is composed of a steam generating assembly and a humidity sensor which are arranged on a pipeline;
the monitoring unit 2 is used for monitoring the safety and risk early warning of the system; the monitoring device comprises a monitoring module 21 and a display module 22, and a generation monitoring interface is reserved in the monitoring unit 2;
the experimental unit 3 is composed of a pipeline structure and an air inlet set controller, and the main body of the experimental unit adopts a glove box.
In this embodiment, as shown in fig. 2, the main generating unit has a double-layer metal plate as a shell and a heat-insulating rock wool as a lining; heating the box body pipe network to 0-50 ℃, and adjusting the temperature by adopting numerical control; internal heat circulation and heat dissipation are realized by adopting a fan, and a heat exhaust outlet is reserved; selecting stainless steel with the internal pipeline material being more than 3mm (considering pressure resistance), and selecting polytetrafluoroethylene as a specific workpiece; and 220V direct current is adopted for power supply.
Pipeline: in FIG. 2, GC1 is a gas generation pipeline, which is mixed to form gas with required temperature/humidity through the flow control of valves and devices among pipelines to complete gas generation; the GC2 is a standard gas distribution pipeline and is matched with and used for adjusting the temperature and the gas inflow of the GC1 pipeline; the GC3 is an emergency pipeline, an emergency safety standby pipeline and is normally closed; the GC4 is a steam distribution pipeline and is used for adjusting the humidity and the air inflow of the GC1 pipeline in a matching way.
Pipeline inlet/outlet: GO0 is the standard gas cylinder air inlet in FIG. 2; GO1 is a gas outlet of the generated gas; GO2 is used for adjusting an exhaust port, adjusting a gas path and finishing sensitive gas exhaust in emergency; GO3 is an emergency exhaust port, so that emergency exhaust of generated gas is realized in emergency; GO4 is for adjusting the gas vent, adjusts the gas circuit, accomplishes the vapour and discharges under emergency.
Gas line heater: XH1 in FIG. 2 is the generation gas preheater, the serpentine tube/distribution manifold, and the heating temperature range 0-70 ℃; XH2 is gas distribution preheater, coiled pipe/distribution manifold, and heating temperature range of 0-150 deg.c.
A gas flow controller: unidirectional control; in FIG. 2, the working parameters of FC1 are 0-0.5L/s, FC2 is 0-2.0L/s, FC3 is 0-3.0L/s, FC4 is 0-2.0L/s, FC5 is 0-0.5L/s, FC6 is 0-5.0L/s, and FC7 is 0-5.0L/s.
A temperature sensor: in fig. 2, TI1 shows standard gas inlet temperature, TI2 shows generation pipeline gas preheating temperature, TI3 shows injection pump push-out generation liquid point temperature, TI4 shows generation gas primary mixed standard gas distribution temperature, TI5 shows steam pipeline standard gas preheating temperature, TI6 shows steam temperature, and TI7 finally generates gas temperature, that is, generation gas remixed steam distribution temperature.
A humidity sensor: in fig. 2, RH1 shows standard gas humidity, RH2 shows primary mixed standard gas humidity of generated gas, RH3 shows steam generated humidity, and RH4 shows final generated gas humidity, that is, generated gas remixed steam distribution humidity.
A pressure sensor: in fig. 2, PI1 shows the line pressure after the initial mixing of the standard gas, PI2 shows the mixed gas line pressure, and PI3 shows the final generator pressure.
A pressure alarm: in fig. 2, PAH1 monitors gas generation line pressure and PAH2 monitors steam distribution line pressure.
A component is turned off: consists of 8 groups of manual valves; in the normal operating state shown in fig. 2, SDV1 is open, SDV2 is open, SDV3 is open, SDV4 is closed, SDV5 is closed, SDV6 is open, SDV7 is open, and SDV8 is closed.
A generating component: the device comprises 3 groups of flow injection pumps, a generating pool and a heating body. The target liquid sample is pushed by a flow injection pump, and heating vaporization is completed in the generation pool.
A steam generation assembly: consists of a water tank, a liquid chromatography pump and a gas mixing bottle. The liquid phase chromatographic pump is matched with a water tank to form steam, the steam enters a gas mixing cylinder, and after preheated standard gas is mixed into the gas mixing cylinder, the steam generation is finished.
Generating a group controller: in fig. 2, KB1 employs a four-way valve, which is connected to an a terminal (gas generation terminal), a B terminal (GO1 terminal), a C terminal (GOM terminal), and a D terminal (GOK terminal), respectively; the four-way valve is divided into 4 gears, and the gears are communicated with one another in a first gear AB mode, so that gas generation of the glove box is realized; the gears are AC communicated, so that the online concentration monitoring of the chromatogram is realized; thirdly, AD communication and evaluation of other external equipment; fourthly, all four ends are closed.
A safety component: as shown in fig. 2, it is composed of an ESD emergency shutdown key, a PSD1 sample generation system shutdown key, and a PSD2 steam generation system shutdown key.
FIG. 3 is a diagram of an experimental unit of the present embodiment, in which:
pipeline structure: GO1 is a gas inlet end, gas inlet is generated, and a main generation system provides gas input; GO6 is an air outlet end and an external detection port; GO7 is an air inlet end and is connected with a standard gas steel cylinder; GO8 is an air outlet end and an exhaust port of the glove box; the GOR is an air outlet end array.
An intake group controller: it is KB2, adopts the cross valve, connects end A (GO1 end), end B (GO7 end), end C (GO6 end), end D (GOR end) respectively. The four-way valve is divided into 4 gears, the gears are connected in an AD mode, and generated gas passes through a GOR (gas in argon) mode to realize the generation of a glove box gas array; the gear II is AC communicated, and generated gas is detected and used by external equipment through a GO6 port; the BD is communicated, external standard gas enters the glove box from GO7 through the GOR, and ventilation and cleaning inside the glove box are realized under the condition that GO8 is opened; fourthly, all four ends are closed. The environment in the glove box is assisted to generate airflow circulation by starting a fan, so that the gas in the glove box is uniformly distributed; and the heat preservation in the glove box is realized by turning on the illumination lamp.
PSD1 starts: as shown in FIG. 4, when the pressure of the PAH1 exceeds the standard, the main risk of line leakage or over-temperature occurs, and the PSD1 is automatically activated. The system automatically shuts down all electronic flow controllers of GC1 and GC 2; the operator is required to manually open SDV5, SDV4 in sequence and manually close SDV1, SDV2, SDV3 in sequence. And finishing the danger elimination of the main generation pipeline.
PSD2 starts: as shown in FIG. 5, when the pressure of the PAH2 exceeds the standard, the steam generation pipeline is in overpressure and overtemperature risks, and the PSD2 is automatically started. The system automatically shuts down all electronic flow controllers of GC 4; the operator is required to manually open the SDV8 and manually close the SDV 7. And finishing the danger elimination of the steam pipeline.
ESD starting: as shown in fig. 6, ESD is automatically initiated when both PAH1 and PAH2 pressures are exceeded, and the full line is at over-temperature or over-pressure risk. The system automatically shuts down all electron flow controllers of GC1, GC2 and GC 4; the operator is required to manually open SDV8, SDV5, SDV4 in sequence and manually close SDV1, SDV2, SDV3, SDV7 in sequence. And (5) completing system risk elimination.
In some embodiments, the main generating unit 1 is dimensioned 1000mm × 1800mm × 900 mm; and considering factors such as pressure resistance and thermal stability of the steel structure, the size of the structure cannot be smaller than the standard.
In some embodiments, the dimensions of the experimental unit 3 are set to 900mm × 500mm × 500 mm; the glove box can be customized, processed and considered to be practical, and the proper size is adjusted to meet the practical application.
In some embodiments, the specialty gas generation flow range is: 0 to 20L/min.
In other embodiments: the flow injection pump passage is set to be 3 paths; flow injection pump flow rate: 0.01 to 1 uL/hr.
The utility model discloses a novel developments special gas takes place test system can accomplish liquid special type compound's gaseous state safely, accurately, high-efficiently and take place, establishes specific experimental environment. The system provides an on-line chromatographic concentration real-time monitoring interface.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (8)
1. A novel dynamic special gas generation test system is characterized by comprising:
the device comprises a main generating unit (1), a monitoring unit (2) and an experimental unit (3);
the main generating unit (1) comprises a generating module (11), a heat exchange module (12), a flow control module (13) and a humidifying module (14); the generating module (11) consists of a pipeline, an air inlet/outlet, a generating assembly and a generating assembly controller, wherein the air inlet/outlet, the generating assembly and the generating assembly controller are arranged on the pipeline; the heat exchange module (12) is composed of a gas pipeline heater arranged on a pipeline and a temperature sensor arranged on the pipeline; the flow control module (13) adopts an air flow controller; the humidifying module (14) is composed of a steam generating assembly and a humidity sensor which are arranged on a pipeline;
the monitoring unit (2) is used for monitoring the safety and risk early warning of a system, and comprises a monitoring module (21) and a display module (22), and a monitoring interface is reserved in the monitoring unit (2);
the experimental unit (3) is composed of a pipeline structure and an air inlet group controller, and the main body of the experimental unit adopts a glove box.
2. A novel dynamic special gas generation test system according to claim 1, characterized in that the outer shell of the main generation unit (1) is made of double-layer metal plate, and the inner lining is made of heat insulation material.
3. The novel dynamic specialty gas generation test system of claim 1, wherein said generation assembly is comprised of a plurality of sets of flow injection pumps, generation cells and heaters; the flow injection pump is communicated with the pipeline, and the generating pool and the heating body are arranged between the flow injection pump and the pipeline.
4. The novel dynamic specialty gas generation test system of claim 1, wherein said steam generation assembly is comprised of a water tank, a liquid chromatography pump, and a gas mixing bottle; the upper end of the liquid chromatographic pump is communicated with the lower end of the gas mixing bottle, and one side of the liquid chromatographic pump is communicated with the water tank.
5. The novel dynamic specialty gas generation test system of claim 1, wherein said generating assembly controller and said inlet stack controller both utilize four-way valves.
6. The novel dynamic specialty gas generation test system of claim 1, further comprising a safety assembly, a shutoff assembly, a pressure sensor, and a pressure alarm disposed on the pipeline.
7. The novel dynamic specialty gas generation test system of claim 6, wherein said safety component is a plurality of manual valves disposed on the pipeline.
8. A novel dynamic specialty gas generation test system according to claim 6 wherein said shutoff assembly is comprised of an emergency shutoff key, a sample generation system shutoff key, and a steam generation system shutoff key.
Priority Applications (1)
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| CN202021017029.8U CN212159704U (en) | 2020-06-05 | 2020-06-05 | Novel dynamic special gas generation test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021017029.8U CN212159704U (en) | 2020-06-05 | 2020-06-05 | Novel dynamic special gas generation test system |
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| CN212159704U true CN212159704U (en) | 2020-12-15 |
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