CN110926884A - Rapid gas circulation detection system and detection method thereof - Google Patents
Rapid gas circulation detection system and detection method thereof Download PDFInfo
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- CN110926884A CN110926884A CN201911117957.3A CN201911117957A CN110926884A CN 110926884 A CN110926884 A CN 110926884A CN 201911117957 A CN201911117957 A CN 201911117957A CN 110926884 A CN110926884 A CN 110926884A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0022—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels
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Abstract
The invention discloses a rapid gas circulation detection system and a detection method thereof, wherein the rapid gas circulation detection system comprises a plurality of gas sampling probes, and the gas sampling probes are sequentially arranged on equipment to be sampled according to a sampling sequence; the gas channel switching system is connected with the plurality of gas sampling probes through pipelines; the two sets of gas pretreatment modules comprise a first gas pretreatment module and a second gas pretreatment module, and the plurality of gas sampling probes are sequentially staggered, communicated to the gas channel switching system through pipelines and then connected to the first gas pretreatment module and the second gas pretreatment module; and the gas analyzer is arranged at the tail end of the first gas pretreatment module and used for analyzing the obtained gas components. The invention can greatly reduce the ventilation time when detecting multi-channel gas, and can effectively reduce the discharge capacity and power of the quantitative air pump by pre-pumping a single channel, and greatly reduce the pre-treatment amount of pre-pumped gas.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a rapid gas circulation detection system and a detection method thereof.
Background
In the building and construction industry, the kiln is the equipment with the highest energy consumption in factories, and the reduction of the energy consumption of the kiln and the emission of pollutants as far as possible is imperative. The main approach to reduce the energy consumption and pollutant emission of the kiln is to control the combustion to ensure that the fuel is in the optimal combustion state. The effective method for judging whether the combustion is in the optimal state is to analyze the combustion waste gas and adjust the combustion state according to the components of the waste gas, and most of domestic kilns do not analyze the waste gas of a main flue and a branch flue on line at present, so that the development of the multipoint on-line gas detection device which is efficient, concise, convenient to use and maintain has wide application prospect.
In the prior art, a single-pump gas detection ventilation device and a double-pump gas detection device are generally adopted for detecting multi-channel gas. The single-pump gas detection and ventilation device is long in distance between the sampling point and the gas detection equipment, gas in a gas pipe needs to be emptied in advance during detection, and the gas is exhausted after every point of detection, so that the problem of low detection speed exists.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a rapid gas circulation detection system, so as to solve the problems of the conventional gas detection device that the sampling gas pipe is long, and a multi-channel simultaneous sampling mode is mostly adopted, which may cause the power of the pump to be too large, the gas distribution among multiple channels of the sampling gas to be uneven, and the processing capacity of the sampling gas to be large.
In order to achieve the purpose, the invention provides the following technical scheme: a rapid gas cycle detection system comprising:
the gas sampling probes are sequentially arranged on equipment to be sampled according to a sampling sequence;
the gas channel switching system is connected with the plurality of gas sampling probes through pipelines;
the two sets of gas pretreatment modules comprise a first gas pretreatment module and a second gas pretreatment module, and the plurality of gas sampling probes are sequentially staggered, communicated to the gas channel switching system through pipelines and then connected to the first gas pretreatment module and the second gas pretreatment module;
and the gas analyzer is arranged at the tail end of the first gas pretreatment module and used for analyzing the components of the sampled gas.
Further, still include the switch board, gaseous sample switch solenoid valve, gas passage switching system, gaseous pretreatment module and gas analysis appearance all install in the switch board, still be equipped with PLC and control touch-sensitive screen in the switch board, gaseous sample switch solenoid valve pass through a plurality of exports that pipeline and switch board predetermine and the outside corresponds gaseous sampling probe and links to each other, PLC control gaseous sample switch solenoid valve is to a plurality of gaseous sampling probe sample in proper order and opening and closing of gas passage switching system.
Further, the gas channel switching system comprises a first two-position three-way electromagnetic valve and a second two-position three-way electromagnetic valve, the first two-position three-way electromagnetic valve comprises a channel A, a channel B and a channel C, the second two-position three-way electromagnetic valve comprises a channel D, a channel E and a channel F, the channel A and the channel D are respectively connected with the gas sampling probe through a pipeline and the gas sampling switching electromagnetic valve, the channel C of the first two-position three-way electromagnetic valve is connected with the channel E of the second two-position three-way electromagnetic valve in parallel and then connected with the second gas pretreatment module, and the channel B of the first two-position three-way electromagnetic valve is connected with the channel F of the second two-position three-way electromagnetic valve in parallel and then connected with the first gas pretreatment module.
The gas sampling switching system comprises a gas sampling probe and a gas channel switching system, wherein the gas sampling probe is arranged in the gas channel switching system, the gas sampling switching system comprises a gas sampling switching solenoid valve, the gas sampling switching solenoid valve is arranged between the gas sampling probe and the gas channel switching system, each gas sampling probe is correspondingly provided with one gas sampling switching solenoid valve, and the gas sampling switching solenoid valve controls the sampling sequence of the gas sampling probes.
Further, the first gas pretreatment module comprises a first condenser, a first filter, a first quantitative air pump, a second filter and a first flowmeter which are sequentially connected, a first regulating valve is installed on the first quantitative air pump, the first condenser is provided with two cold cavities which are respectively arranged before the first filter and before the second filter, the second gas pretreatment module comprises a second condenser, a third filter, a second quantitative air pump and a second flowmeter which are sequentially connected, a second regulating valve is installed on the second quantitative air pump, sampled gas is emptied after passing through the second gas pretreatment module and enters the gas analyzer after passing through the first gas pretreatment module.
Furthermore, the pipeline and all the flow passage components are made of polypropylene, polytetrafluoroethylene, fluororubber or silicone rubber.
Furthermore, the protection grade of the control cabinet is IP64, and a control cabinet air conditioner is arranged in the control cabinet to ensure long-term stable operation of the rapid gas circulation detection system.
The invention also provides a detection method of the rapid gas circulation detection system, which comprises the following steps:
s1, simultaneously connecting a first gas sampling switching electromagnetic valve and a second gas sampling switching electromagnetic valve with a gas sampling probe for sampling, and sequentially connecting the remaining gas sampling switching electromagnetic valves with the gas sampling probe for sampling;
s2, adjusting a gas channel switching system to enable a channel A of the first two-position three-way electromagnetic valve to be communicated with a channel B, and enabling a channel D of the second two-position three-way electromagnetic valve to be connected with a channel E;
s3, switching the gas channel switching system after the gas extracted by the first sampling probe is processed by the gas analyzer, so that the channel A of the first two-position three-way electromagnetic valve is communicated with the channel C, and the channel D of the second two-position three-way electromagnetic valve is connected with the channel F;
and S4, repeating the steps S1-S3 until all the gas sampling probes finish sampling.
Further, in the above step S4, the next gas sampling probe is sampled while the gas analyzer detects the previous gas sampling probe.
Further, in the step S4, the gas sampling probe controls the back blowing by the PLC, so as to effectively prevent the gas sampling probe from being blocked.
Compared with the prior art, the invention at least comprises the following beneficial effects: the rapid gas circulation detection system provided by the invention has the advantages that the gas channel switching system can realize gas channel switching by adopting the reversing combination valve, and can realize switching between two gas channel detections. The gas sampling device is provided with two sets of gas pretreatment modules, and when the gas sampled by the first gas sampling probe is measured, the gas sampled by the second gas sampling probe is pre-pumped and pretreated, so that the real-time sample gas is detected when the gas sampled by the second gas sampling probe is switched. The air exchange time when multi-channel gas is detected can be greatly reduced, the single-channel pre-pumping can effectively reduce the discharge capacity and power of the quantitative air pump, and the pre-treatment amount of pre-pumped gas is greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a gas channel switching system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first gas pretreatment module according to the present invention;
FIG. 4 is a schematic structural view of a second gas pretreatment module according to the present invention;
in the figure:
1-a gas sampling probe;
2-gas channel switching system, 21-first two-position three-way electromagnetic valve, 211-A channel, 212-B channel, 213-C channel, 22-second two-position three-way electromagnetic valve, 221-D channel, 222-E channel and 223-F channel;
3-gas pre-treatment module, 31-first gas pre-treatment module, 311-first condenser, 312-first filter, 313-first quantitative air pump, 314-first regulating valve, 315-second filter, 316-first flow meter, 32-second gas pre-treatment module, 321-second condenser, 322-third filter, 323-second quantitative air pump, 324-second regulating valve, 325-second flow meter;
4-a gas analyzer;
5-gas sampling switching electromagnetic 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1-4, embodiments of the present application provide a rapid gas circulation detection system, including:
the gas sampling probes 1 are sequentially arranged on equipment to be sampled according to a sampling sequence;
the gas channel switching system 2 is connected with the plurality of gas sampling probes 1 through pipelines;
the two sets of gas pretreatment modules 3 comprise a first gas pretreatment module 31 and a second gas pretreatment module 32, and the plurality of gas sampling probes 1 are sequentially staggered, communicated to the gas channel switching system 2 through pipelines and then connected to the first gas pretreatment module 31 and the second gas pretreatment module 32;
and the gas analyzer 4 is arranged at the tail end of the first gas pretreatment module 31 and used for analyzing the sampled gas components.
Further, according to a preferred embodiment, the system further comprises a gas sampling switching solenoid valve 5, the gas sampling switching solenoid valve 5 is arranged between the gas sampling probe 1 and the gas channel switching system 2, each gas sampling probe 1 is correspondingly provided with one gas sampling switching solenoid valve 5, and the gas sampling switching solenoid valve 5 controls the sampling sequence of the gas sampling probe 1.
In the above embodiment, one end of the gas sampling switching solenoid valve 5 is connected to the sampling probe 1 through a pipeline, the other end is connected to the gas switching system through a pipeline, the gas channel switching system includes two inlets and two outlets, wherein the gas sampling switching solenoid valve 1 is sequentially staggered and respectively connected to the two inlets, the two outlets are respectively connected to the first gas preprocessing module 31 and the second gas preprocessing module 32, and the gas channel switching system 2 adopts the reversing combination valve to realize channel switching, so as to realize that the sampled gas respectively enters different gas preprocessing modules.
In a further preferred embodiment, still include the switch board, gas sampling switch solenoid valve 5, gas channel switching system 2, gaseous pretreatment module and gas analysis appearance 4 all install in the switch board, still be equipped with PLC and control touch screen in the switch board, gas switching system pass through a plurality of exports that pipeline and switch board predetermine and the outside corresponding gas sampling probe 1 links to each other, PLC control a plurality of gas sampling switch solenoid valves 5 sample in proper order and the opening and closing of gas channel switching system 2. The control cabinet adopts temperature control and dustproof design, and can be directly placed below the kiln. The protection grade of the control cabinet is IP64, and a control cabinet air conditioner is arranged in the control cabinet to ensure long-term stable operation of the rapid gas circulation detection system.
In the above embodiment, the gas sampling switching solenoid valve 5, the gas channel switching system 2, the gas preprocessing module and the gas analyzer 4 are all disposed in the control cabinet, and can integrate the whole system, so as to facilitate the operation, wherein the PLC is electrically connected to the gas sampling switching solenoid valve 5 and the gas channel switching system 2, respectively, and controls the switching of the gas sampling switching solenoid valve 5, the sampling sequence and the channel switching in the gas channel switching system 2.
In a further preferred embodiment, the gas channel switching system 2 includes a first two-position three-way electromagnetic valve 21 and a second two-position three-way electromagnetic valve 22, the first two-position three-way electromagnetic valve 21 includes an a channel 211, a B channel 212, and a C channel 213, the second two-position three-way electromagnetic valve 22 includes a D channel 221, an E channel 222, and an F channel 223, the a channel 211 and the D channel 221 are connected to the gas sampling switching electromagnetic valve 5 through pipes, respectively, wherein the C channel 213 of the first two-position three-way electromagnetic valve 21 is connected in parallel to the E channel 222 of the second two-position three-way electromagnetic valve 22 and then connected to the second gas preprocessing module 32, and the B channel 212 of the first two-position three-way electromagnetic valve 21 is connected in parallel to the F channel 223 of the second two-position three-way electromagnetic valve 22 and then connected to the first gas.
In the above embodiment, the gas channel switching system 2 includes two-position three-way electromagnetic valves, and the two-position three-way electromagnetic valves are switched respectively, so that the extracted gas enters different gas pretreatment modules for pretreatment.
In a further preferred embodiment, the first gas pretreatment module 31 includes a first condenser 311, a first filter 312, a first quantitative air pump 313, a second filter 315, and a first flow meter 316, which are connected in sequence, the first quantitative air pump 313 is provided with a first regulating valve 314, the first condenser 311 is provided with two cold chambers, which are respectively disposed in front of the first filter 312 and in front of the second filter 315, the second gas pretreatment module 32 includes a second condenser 321, a third filter 322, a second quantitative air pump 323, and a second flow meter 325, which are connected in sequence, the second quantitative air pump 323 is provided with a second regulating valve 324, and the sampled gas passes through the second gas pretreatment module 32 and then is evacuated, and passes through the first gas pretreatment module 31 and then enters the gas analyzer 4.
In the above embodiment, the condenser of the first gas pretreatment module 31 is provided with two cold chambers and two filters, and the gas is condensed and filtered again before entering the gas analyzer 4, and meanwhile, the first gas pretreatment module 31 and the second gas pretreatment module 32 are both provided with water drainage devices to drain the cold chambers of the condenser. The end of the second gas pretreatment module 32 can be further provided with a monitoring flowmeter, and the gas analyzer 4 and the end of the second gas pretreatment module 32 can be provided with a harmful gas treatment device according to a use scene to treat harmful gas and then evacuate the harmful gas.
In a further preferred embodiment, the pipe and all the flow passage components are made of polypropylene, polytetrafluoroethylene, fluororubber or silicone rubber. No dead angle, corrosion resistance and cross contamination, and no corrosion in long-term operation.
The invention also provides a detection method of the rapid gas circulation detection system, which comprises the following steps:
s1, simultaneously connecting a first gas sampling switching electromagnetic valve 5 and a second gas sampling switching electromagnetic valve 5 with a gas sampling probe 1 for sampling, and sequentially connecting the remaining gas sampling switching electromagnetic valves 5 with the gas sampling probe 1 for sampling;
s2, adjusting the gas channel switching system 2 to enable the channel A211 of the first two-position three-way electromagnetic valve 21 to be communicated with the channel B212, and the channel D221 of the second two-position three-way electromagnetic valve 22 to be connected with the channel E223;
step S3, after the gas extracted by the first sampling probe is processed by the gas analyzer 4, switching the gas channel switching system 2 to enable the channel A211 of the first two-position three-way electromagnetic valve 21 to be communicated with the channel C213, and the channel D221 of the second two-position three-way electromagnetic valve 22 to be connected with the channel F222;
and S4, repeating the steps S1-S3 until all the gas sampling probes 1 finish sampling.
Further, in the above step S4, the next gas sampling probe 1 is sampled while the gas analyzer 4 detects the extraction of the previous gas sampling probe 1.
Further, in the step S4, the gas sampling probe 1 controls the back blowing by the PLC, so as to effectively prevent the gas sampling probe 1 from being blocked.
The working principle of the structure is as follows: the first gas switching electromagnetic valve 5 and the second gas switching electromagnetic valve 5 are simultaneously communicated with the sampling probe 1 for sampling, the gas of the first gas sampling probe firstly reaches the channel A211 of the first two-position three-way electromagnetic valve 21 through the switching electromagnetic valves, then reaches the first gas pretreatment module 31 from the channel A211 of the first two-position three-way electromagnetic valve 21 to the channel B212 of the first two-position three-way electromagnetic valve 21, and then reaches the flue gas analyzer for analysis after treatment, and is exhausted to the atmosphere after analysis; the gas of the second gas sampling probe firstly reaches the D channel 221 of the second two-position three-way solenoid valve 22 through the gas sampling switching solenoid valve, and then enters the second gas preprocessing module 32 from the D channel 221 of the second two-position three-way solenoid valve 22 to the E channel 222 of the second two-position three-way solenoid valve 22, and then is exhausted.
After the gas sampled by one gas sampling probe is processed, the two-position three-way electromagnetic valve is powered off, at this time, the channel A211 of the first two-position three-way electromagnetic valve 21 is connected with the channel C213, the channel D221 of the second two-position three-way electromagnetic valve 22 is connected with the channel F223, and the second gas sampling probe sampled gas which enters the channel E222 from the channel D221 of the second two-position three-way electromagnetic valve 22 enters the channel F223 from the channel D221 of the second two-position three-way electromagnetic valve 22, enters the first gas preprocessing module 31, then reaches the flue gas analyzer for analysis and is emptied. When the gas sampled by the first gas sampling probe is processed, the system samples the third gas sampling probe, the obtained gas flows from the channel A211 to the channel C213 of the first two-position three-way electromagnetic valve 21, and then the gas is pretreated and exhausted (at this time, the second gas sampling probe flows from the channel D221 of the second two-position three-way electromagnetic valve 22 to the channel F223 for pretreatment and analysis and exhaust). The latter ports work in this order.
The specific operation of the present invention according to different application scenarios is explained as follows:
1. can analyze the combustion state of the glass kiln
The glass kiln is a thermal device with the highest energy consumption in a glass factory, the energy consumption accounts for about 80% of the total energy consumption of the production process, and the specific weight of the fuel in the production cost can reach more than 30%. In a flame furnace, the key point of energy conservation and consumption reduction is to improve the fuel combustion efficiency, and the quality of products and the energy use efficiency are determined.
The glass kiln is a large combustion space, and the combustion process of the kiln is a 'contradiction' process. On the one hand, in order to avoid incomplete combustion, one tends to reduce the heat loss of chemical incomplete combustion by increasing the amount of excess air; on the other hand, the situation that too much air is excessive, so that too much useless air is heated by fuel, the heat loss brought away by smoke is increased, the combustion temperature and the flame radiation rate are reduced, the melting quality of glass is influenced, in addition, too much air is excessive, the generated nitrogen oxides are increased, and the survival of enterprises is threatened under the background that the emission standard of atmospheric pollutants is stricter and stricter.
In order to effectively improve the combustion quality of the glass kiln, 2 rapid gas circulation detection systems are utilized to extract flue gas of a main flue of the kiln and branch flues of regenerators on two sides, oxygen, nitric oxide and carbon monoxide are detected on the flue gas, whether air distribution of each small furnace is proper or not can be judged, and combustion is enabled to reach the optimal state through adjustment, so that the purposes of saving energy and reducing emission of nitric oxide pollutants are achieved. For example: the measured energy saving rate of a certain glass factory is 9.3%, and the emission of nitrogen oxides is reduced by 40%.
2. Can monitor inflammable, explosive and toxic factories
In the chemical industry field, chemical equipment is complicated and compact, and the pipe-line system is huge and intensive, and chemical equipment is mostly arranged in the open air, is easy to corrode, produce mechanical damage and wearing and tearing, and under the production condition of high temperature and high pressure, the pipeline or valve is easy to have the toxic or combustible gas leakage phenomenon, brings very big harm to production equipment and operating personnel. Therefore, the gas monitoring is needed to be carried out on dangerous places which are possibly leaked between chemical engineering rooms, harmful gas is found as soon as possible, and the gas monitoring system is treated as soon as possible to prevent accidents.
Through increasing gaseous sampling probe in the region that easily takes place to reveal, the cyclic detection carries out 24 hours to this system of reuse thin tetrafluoro pipe connection, and when harmful gas takes place to reveal, this system can detect harmful gas, really accomplishes the emergence of prevention accident. Meanwhile, the sampling head and the conveying pipeline are made of plastic materials, so that electrification is not needed, static electricity is not generated, an explosion-proof design is not needed, and the cost of detection equipment can be greatly reduced.
3. Can detect and alarm the CO in the gas
The coal gas is not only a byproduct of a steel plant, but also an important energy source, mainly comprises blast furnace gas, converter gas and coke oven gas, and the effective heating component of the coal gas is mainly carbon monoxide. Carbon monoxide can cause explosion and poisoning when encountering open fire, so that special attention needs to be paid to safety in all links of coal gas production, purification, transportation, distribution, storage and use, and coal gas accidents are strictly prevented.
An area alarm system is established for large-scale gas equipment or a gas workplace connected into a piece. In the area, a plurality of gas sampling probes are arranged at the places where gas is easy to leak, the gas sampling probes are connected with the system equipment through thin tetrafluoride tubes, different areas are continuously and alternately detected, when the concentration of CO at a certain point is detected to exceed the set value concentration, an alarm signal can be sent out, and the system equipment can also be connected with an execution device to start corresponding safety facilities.
4. Can early-warning and monitor the spontaneous combustion of coal pile
Coal is used as an important industrial raw material and fuel, and plays an important role in the industries of power generation, smelting, chemical industry, building materials and the like. Generally, a certain amount of coal needs to be stored in advance in a unit using the coal, the stored coal needs to be stacked in a centralized manner, but the coal pile can generate oxidation reaction with oxygen in air after being placed for a long time to release heat, the coal can generate gases such as CO, smoke and the like while heating, if the oxidation reaction is continuously generated, the temperature of the coal pile is increased, and the oxidation reaction speed of the coal is accelerated after the temperature of the coal is increased.
By utilizing the system, gas sampling probes can be arranged above the coal yard at intervals of a certain area, and then the probes are connected to the system equipment by the thin tetrafluoride pipe, so that CO and O at each position can be treated2The concentration is measured when CO and O are found2And early warning information is sent out when the spontaneous combustion characteristics are met so as to carry out automatic or manual processing, eliminate the hidden danger of spontaneous combustion in a sprouting state and reduce economic loss.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (10)
1. A rapid gas circulation detection system is characterized by comprising:
the gas sampling probes are sequentially arranged on equipment to be sampled according to a sampling sequence;
the gas channel switching system is connected with the plurality of gas sampling probes through pipelines;
the two sets of gas pretreatment modules comprise a first gas pretreatment module and a second gas pretreatment module, and the plurality of gas sampling probes are sequentially staggered, communicated to the gas channel switching system through pipelines and then connected to the first gas pretreatment module and the second gas pretreatment module;
and the gas analyzer is arranged at the tail end of the first gas pretreatment module and used for analyzing the components of the sampled gas.
2. The rapid gas cycle detection system of claim 1, wherein: still include the switch board, gas passage switching system, gaseous pretreatment module and gas analysis appearance all install in the switch board, still be equipped with PLC and control touch screen in the switch board, gas switching system pass through a plurality of exports that pipeline and switch board predetermine and the outside corresponds gaseous sampling probe and link to each other, PLC controls a plurality of gaseous sampling probe and sample in proper order and opening and closing of gas passage switching system.
3. The rapid gas cycle detection system of claim 1, wherein: the gas channel switching system comprises a first two-position three-way electromagnetic valve and a second two-position three-way electromagnetic valve, the first two-position three-way electromagnetic valve comprises an A channel, a B channel and a C channel, the second two-position three-way electromagnetic valve comprises a D channel, an E channel and an F channel, the A channel and the D channel are connected with the gas sampling probe through pipelines respectively, the C channel of the first two-position three-way electromagnetic valve is connected with the E channel of the second two-position three-way electromagnetic valve in parallel and then connected with the second gas pretreatment module, and the B channel of the first two-position three-way electromagnetic valve is connected with the F channel of the second two-position three-way electromagnetic valve in parallel and then connected with the first gas pretreatment module.
4. The rapid gas cycle detection system of claim 1, wherein: still include gas sampling switching solenoid valve, gas sampling switching solenoid valve sets up between gas sampling probe and gas passage switching system, every gas sampling probe corresponds sets up a gas sampling switching solenoid valve, gas sampling switching solenoid valve control gas sampling probe sampling order.
5. The rapid gas cycle detection system of claim 1, wherein: the first gas pretreatment module comprises a first condenser, a first filter, a first quantitative air pump, a second filter and a first flowmeter which are sequentially connected, a first regulating valve is installed on the first quantitative air pump, the first condenser is provided with two cold chambers which are respectively arranged in front of the first filter and in front of the second filter, the second gas pretreatment module comprises a second condenser, a third filter, a second quantitative air pump and a second flowmeter which are sequentially connected, a second regulating valve is installed on the second quantitative air pump, and sampled gas is evacuated after passing through the second gas pretreatment module and enters the gas analyzer after passing through the first gas pretreatment module.
6. The rapid gas cycle detection system of claim 1, wherein: the pipeline and all the flow passage components are made of polypropylene, polytetrafluoroethylene, fluororubber or silicone rubber.
7. The rapid gas cycle detection system of claim 2, wherein: the protection grade of the control cabinet is IP64, and a control cabinet air conditioner is arranged in the control cabinet to ensure long-term stable operation of the rapid gas circulation detection system.
8. The detection method of the rapid gas circulation detection system according to claim 1, comprising the steps of:
s1, simultaneously connecting a first gas sampling switching electromagnetic valve and a second gas sampling switching electromagnetic valve with a gas sampling probe for sampling, and sequentially connecting the remaining gas sampling switching electromagnetic valves with the gas sampling probe for sampling;
s2, adjusting a gas channel switching system to enable a channel A of the first two-position three-way electromagnetic valve to be communicated with a channel B, and enabling a channel D of the second two-position three-way electromagnetic valve to be connected with a channel E;
s3, switching the gas channel switching system after the gas extracted by the first sampling probe is processed by the gas analyzer, so that the channel A of the first two-position three-way electromagnetic valve is communicated with the channel C, and the channel D of the second two-position three-way electromagnetic valve is connected with the channel F;
and S4, repeating the steps S1-S3 until all the gas sampling probes finish sampling.
9. The detection method of the rapid gas circulation detection system according to claim 8, wherein: in the above step S4, the next gas sampling probe is sampled while the gas analyzer detects the extraction of the previous gas sampling probe.
10. The detection method of the rapid gas circulation detection system according to claim 7, wherein: in the step S4, the gas sampling probe controls back flushing through the PLC, so as to effectively prevent the gas sampling probe from being blocked.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229819A (en) * | 2020-09-29 | 2021-01-15 | 江苏威尔安智能科技有限公司 | Online analysis system based on multichannel automatic switching sampling |
| CN112415144A (en) * | 2020-11-25 | 2021-02-26 | 四川化安科技发展有限公司 | Multi-point multi-element gas on-line detection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181228A (en) * | 2014-09-18 | 2014-12-03 | 电子科技大学 | Gas circuit device capable of accelerating response of trace gas integrated detector |
| CN204302222U (en) * | 2014-12-29 | 2015-04-29 | 深圳市荣鹰电子仪器有限公司 | Zirconium oxide analyzer |
| CN106442890A (en) * | 2016-10-31 | 2017-02-22 | 江苏科华智能控制设备有限公司 | Multichannel rapid air changing double-pump type gas detecting device |
| CN207703878U (en) * | 2018-01-15 | 2018-08-07 | 西安热工研究院有限公司 | A kind of gaseous pollutant multiple spot automatic sampling test device |
| CN109632382A (en) * | 2018-10-30 | 2019-04-16 | 江西索立德环保服务有限公司 | A kind of change type isokinetic sampling pump |
| KR20190045032A (en) * | 2017-10-23 | 2019-05-02 | 주식회사 제일그린시스 | Portable gas sampler and gas detector using the same |
-
2019
- 2019-11-15 CN CN201911117957.3A patent/CN110926884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181228A (en) * | 2014-09-18 | 2014-12-03 | 电子科技大学 | Gas circuit device capable of accelerating response of trace gas integrated detector |
| CN204302222U (en) * | 2014-12-29 | 2015-04-29 | 深圳市荣鹰电子仪器有限公司 | Zirconium oxide analyzer |
| CN106442890A (en) * | 2016-10-31 | 2017-02-22 | 江苏科华智能控制设备有限公司 | Multichannel rapid air changing double-pump type gas detecting device |
| KR20190045032A (en) * | 2017-10-23 | 2019-05-02 | 주식회사 제일그린시스 | Portable gas sampler and gas detector using the same |
| CN207703878U (en) * | 2018-01-15 | 2018-08-07 | 西安热工研究院有限公司 | A kind of gaseous pollutant multiple spot automatic sampling test device |
| CN109632382A (en) * | 2018-10-30 | 2019-04-16 | 江西索立德环保服务有限公司 | A kind of change type isokinetic sampling pump |
Non-Patent Citations (1)
| Title |
|---|
| 彭志源: "《城镇排污控制与环境监理规章制度全集》", 31 May 2004 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229819A (en) * | 2020-09-29 | 2021-01-15 | 江苏威尔安智能科技有限公司 | Online analysis system based on multichannel automatic switching sampling |
| CN112229819B (en) * | 2020-09-29 | 2021-08-24 | 江苏威尔安智能科技有限公司 | Online analysis system based on multichannel automatic switching sampling |
| CN112415144A (en) * | 2020-11-25 | 2021-02-26 | 四川化安科技发展有限公司 | Multi-point multi-element gas on-line detection device |
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