CN213577476U - Gas and combustion-supporting gas current stabilizer - Google Patents
Gas and combustion-supporting gas current stabilizer Download PDFInfo
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- CN213577476U CN213577476U CN202021928074.9U CN202021928074U CN213577476U CN 213577476 U CN213577476 U CN 213577476U CN 202021928074 U CN202021928074 U CN 202021928074U CN 213577476 U CN213577476 U CN 213577476U
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- 239000003381 stabilizer Substances 0.000 title claims description 27
- 239000003595 mist Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 413
- 239000003570 air Substances 0.000 claims description 35
- 238000012544 monitoring process Methods 0.000 claims description 26
- 230000003993 interaction Effects 0.000 claims description 23
- 239000007800 oxidant agent Substances 0.000 claims description 14
- 230000001590 oxidative effect Effects 0.000 claims description 14
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 12
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 12
- 239000002737 fuel gas Substances 0.000 claims description 11
- 230000003111 delayed effect Effects 0.000 claims description 9
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000001272 nitrous oxide Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 18
- 230000000087 stabilizing effect Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 6
- 238000004880 explosion Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a gas and combustion-supporting gas flow stabilizing device, a gas and combustion-supporting gas flow stabilizing system comprises a gas flow path, a combustion-supporting gas flow path and a control system; the gas flow path comprises a gas source, a gas valve assembly and a mass flow controller which are sequentially communicated by a gas pipeline; the combustion-supporting gas flow path comprises a combustion-supporting gas compressor, an oil mist separator, a combustion-supporting gas valve component and a proportional valve which are sequentially communicated through a combustion-supporting gas pipeline; the control module is in signal connection with the combustion-supporting gas valve component, the proportional valve, the gas valve component and the mass flow controller. Through set up mass flow controller in the gas flow path, set up the proportional valve in the combustion-supporting gas flow path, can real-time supervision control gas and combustion-supporting gas's mass flow and pressure, the problem that flame drifted in the avoidance combustion reaction improves the stability of burning flame to the mass flow of gas can accurate control, ensures the temperature of burning reaction, avoids the too big risk that leads to detonating or exploding of gas flow.
Description
Technical Field
The utility model belongs to gas appliances field for combustion especially relates to a gas and combustion-supporting gas current stabilizer.
Background
In actual work and life, energy is often provided by combustion of fuel gas and combustion-supporting gas. The common combustion-supporting gas comprises compressed air and the like, and the compressed air serving as the common combustion-supporting gas has the characteristics of cleanness, safety and convenience in use, and is widely applied to industry, agriculture, traffic, national defense and life, so that the air compressor has higher requirements on stable energy-saving operation. In many enterprises, the air load for the compressed air system is not a fixed value, the frequent change range is large and the change is frequent, so that the air supply pressure of the compressed air system generates huge fluctuation, in order to deal with the problem, the enterprises often make the operation pressure of the compressed air system higher than the actually required pressure, so that the loss of the whole compressed air pipe network is obviously increased, the air consumption of the whole system is increased, the leakage is serious, and the energy consumption of a compressor is increased. The compressed air system can also cause the frequent loading and unloading of the air compressor in the actual operation, and has large impact on a power grid, so that the operation noise of the air compressor is large, the service life of the air compressor is reduced, and the quality of the produced compressed air is unstable. In addition, the pressure of the compressed air system is often only controlled and regulated in the prior art, and real-time monitoring and feedback cannot be realized. Common fuel gas comprises acetylene and the like, the acetylene serving as combustible gas has the characteristics of flammability and explosiveness, and when a certain concentration is reached, the risk of explosion is caused. Therefore, the flow rate of acetylene needs to be strictly controlled.
In practice, many instruments and devices often require combustion with fuel gas and combustion-supporting gas to provide a heat source, for example, in atomic absorption spectroscopy, combustion in an atomizer using both compressed air and acetylene to atomize the element to be measured. The traditional compressed air pressure control method and acetylene flow control method cannot monitor and control the compressed air pressure and the acetylene flow in real time, and if the pressure of the compressed air and the flow of the acetylene cannot be detected and controlled in real time, the compressed air and the acetylene are unstable in combustion or explosion danger exists, so that the performance and the use safety of gas equipment are seriously influenced.
SUMMERY OF THE UTILITY MODEL
To traditional gas, combustion-supporting gas control method can not real-time supervision control pressure and flow, lead to burning unstability or have explosion danger, seriously influence the performance of gas appliances and the problem of safety in utilization, the utility model provides a gas and combustion-supporting gas current stabilizer.
The utility model provides a gas and combustion-supporting gas flow stabilizing device, the gas and combustion-supporting gas flow stabilizing system comprises a gas flow path, a combustion-supporting gas flow path and a control system;
the gas flow path comprises a gas source, a gas valve assembly and a mass flow controller which are sequentially communicated through a gas pipeline;
the combustion-supporting gas flow path comprises a combustion-supporting gas compressor, an oil mist separator, a combustion-supporting gas valve component and a proportional valve which are sequentially communicated through a combustion-supporting gas pipeline;
the control module is in signal connection with the combustion-supporting gas valve component, the proportional valve, the gas valve component and the mass flow controller.
In one embodiment, the gas valve assembly comprises a first gas solenoid valve.
In one embodiment thereof, the gas valve assembly further comprises a second gas solenoid valve.
In one embodiment, the fuel gas is any one of acetylene, natural gas and hydrogen, and the combustion-supporting gas is any one of air, oxygen and nitrous oxide.
In one embodiment, the control system comprises a man-machine interaction module, a control module, a combustion-supporting gas pressure monitoring module, a combustion-supporting gas pressure comparison module, a gas flow monitoring module and a gas flow comparison module;
the human-computer interaction module is used for sending a starting signal or a closing signal to the combustion-supporting gas module;
the control module is used for opening the combustion-supporting air valve assembly according to the starting signal sent by the man-machine interaction module, and is used for closing the gas valve assembly and closing the combustion-supporting air valve assembly in a delayed manner according to the closing signal sent by the man-machine interaction module; the combustion-supporting gas pressure comparison module is used for comparing the combustion-supporting gas pressure with the gas flow rate of the gas flow;
the combustion-supporting gas pressure monitoring module is used for monitoring the combustion-supporting gas pressure in real time and acquiring a real-time combustion-supporting gas pressure value;
the combustion-supporting gas pressure comparison module is used for comparing the real-time combustion-supporting gas pressure value with a preset combustion-supporting gas pressure value, and sending a gas valve component opening signal to the control module when the real-time combustion-supporting gas pressure value is the same as the preset combustion-supporting gas pressure value; when the real-time combustion-supporting gas pressure value is different from the preset combustion-supporting gas pressure value, sending a gas valve component closing signal and a combustion-supporting gas valve component delayed closing signal to the control module;
the gas flow monitoring module is used for monitoring gas flow in real time and acquiring a real-time gas flow value;
and the gas flow comparison module is used for comparing the real-time gas flow value with a preset gas flow value, and when the real-time gas flow value is different from the preset gas flow value, sending a gas valve component closing signal and a combustion-supporting gas valve component delayed closing signal to the control module.
In one embodiment, the human-computer interaction module is further configured to send a combustion-supporting gas pressure control value signal and a gas flow control value signal to the control module;
the control module is also used for controlling the proportional valve and the mass flow controller according to the combustion-supporting gas pressure control value signal and the gas flow control value signal sent by the man-machine interaction module.
In one embodiment, the preset combustion-supporting gas pressure value is (1 +/-5%) times of the combustion-supporting gas pressure control value; the preset gas flow value is (1 +/-5%) times of the gas flow control value.
In one embodiment, the control system comprises a gas leakage detection module for detecting whether gas leakage exists in the gas flow path.
In one embodiment, the control module is used for controlling the opening and closing of the combustion-supporting gas valve component and the gas valve component according to a gas leakage signal sent by the gas leakage detection device.
In one embodiment, the fuel gas and combustion-supporting gas flow stabilizers are used for atomic absorption spectrometers.
By adopting the technical scheme, the beneficial effects of the utility model are that: through set up mass flow controller in the gas flow path, set up the proportional valve in the combustion-supporting gas flow path, can real-time supervision control gas and combustion-supporting gas's mass flow and pressure, the problem that flame drifted in the avoidance combustion reaction improves the stability of burning flame to the mass flow of gas can accurate control, ensures the temperature of burning reaction, avoids the too big risk that leads to detonating or exploding of gas flow.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments 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 present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the structure of the gas and combustion-supporting gas flow stabilizer of the present invention;
FIG. 2 is a schematic view of the working flow of the fuel gas and combustion-supporting gas flow stabilizer of the present invention;
110, a gas source; 121. a first gas solenoid valve; 122. a second gas solenoid valve; 130. a mass flow controller; 10. a gas inlet end; 210. a combustion-supporting gas compressor; 220. an oil mist separator; 230. a combustion-supporting air valve component; 240. a proportional valve; 20. the combustion-supporting air inlet end.
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 efforts belong to the protection scope of the present invention.
As shown in fig. 1, in the gas and combustion-supporting gas flow stabilizer according to an embodiment of the present invention, the gas and combustion-supporting gas flow stabilizing system includes a gas flow path, a combustion-supporting gas flow path, and a control system; the gas flow path comprises a gas source 110, a gas valve component and a mass flow controller 130 which are sequentially communicated through a gas pipeline; the combustion-supporting gas flow path comprises a combustion-supporting gas compressor 210, an oil mist separator 220, a combustion-supporting gas valve component 230 and a proportional valve 240 which are sequentially communicated through a combustion-supporting gas pipeline; the control module is in signal connection with the combustion-supporting gas valve assembly 230, the proportional valve 240, the gas valve assembly and the mass flow controller 130.
This gas and combustion-supporting gas current stabilizer, through set up mass flow controller 130 in the gas flow path, set up proportional valve 240 in the combustion-supporting gas flow path, can real-time supervision control gas and combustion-supporting gas's mass flow and pressure, the problem that flame drifted in the avoidance combustion reaction, improve the stability of burning flame, and can the accurate control gas's mass flow, ensure the temperature of combustion reaction, avoid the too big risk that leads to detonating or explosion of gas flow.
The gas source 110 is used for storing gas, for example, the gas source 110 is a gas tank; the gas valve component is used for controlling the on-off of a gas flow path; the mass flow controller 130 is used to regulate the flow of the gas and to monitor the feedback in real time. Further, the output end of the gas pipeline communicated with the mass flow controller 130 is communicated with the gas inlet end 10 of the gas using equipment.
The oxidant gas compressor 210 is for generating a compressed oxidant gas; the oil mist separator 220 is used for removing water and oil in the compressed combustion-supporting gas and preventing a pipeline and a valve channel at the rear end from being blocked; the combustion-supporting air valve component 230 controls the on-off of the combustion-supporting air flow path; the proportional valve 240 regulates the pressure of the compressed combustion supporting gas and monitors the feedback in real time. Further, the output end of the combustion-supporting gas pipeline communicated with the proportional valve 240 is communicated with the combustion-supporting gas inlet end 20 of the gas-using equipment.
Above-mentioned gas and combustion-supporting gas current stabilizer, after combustion-supporting gas valve member 230 is opened, combustion-supporting gas compressor 210 produces the compression combustion-supporting gas of storage in the gas pitcher, after oil mist separator 220 water removal and deoiling, get into electric proportional valve 240 through the combustion-supporting gas solenoid valve, electric proportional valve 240 adjusts the pressure of compressing combustion-supporting gas according to the preset combustion-supporting gas pressure value of settlement, make it keep in presetting combustion-supporting gas pressure value certain range, the final stable compression combustion-supporting gas gets into the combustion-supporting gas air inlet of gas appliances. The pressure of the compressed combustion-supporting gas is monitored in real time, when the pressure of the compressed combustion-supporting gas is abnormal (exceeds a preset combustion-supporting gas pressure value in a certain range), an error is reported, the gas valve component is cut off firstly after the error is reported, and the combustion-supporting gas valve component 230 is cut off in a delayed mode.
Above-mentioned gas and combustion-supporting gas current stabilizer, before opening gas valve subassembly, whether the pressure of compressed combustion-supporting gas need be monitored earlier normally, only when compressed combustion-supporting gas pressure is in normal condition, when the pressure of compressed combustion-supporting gas is in predetermineeing combustion-supporting gas pressure value certain range promptly, just can open gas valve subassembly. After the gas valve assembly is opened, the gas in the gas source 110 enters the mass flow controller 130 through the gas valve assembly, the mass flow controller 130 adjusts the gas flow according to the preset gas flow value, so that the gas flow is kept within a certain range of the preset gas flow value, and finally the stable gas enters the gas inlet of the gas appliance. And detecting the gas flow in real time, reporting an error when the gas flow is abnormal (exceeds a preset gas flow value in a certain range), cutting off the gas valve component firstly after the error is reported, and cutting off the combustion-supporting gas valve component 230 in a delayed manner.
As an alternative embodiment, the gas valve assembly comprises a first gas solenoid valve 121. The first gas electromagnetic valve 121 is in signal connection with the control module, and the control module controls the on-off of the gas flow path by controlling the on-off of the first gas electromagnetic valve 121.
Further preferably, the gas valve assembly also includes a second gas solenoid valve 122. The gas generally has the danger of inflammable and explosive, in this embodiment, through set up two gas solenoid valves as dual fail-safe on the gas flow path, even one of them gas solenoid valve appears when unusual unable normal shut-off, another gas solenoid valve can normally work in addition to guaranteed the timely shutoff of gas flow path, prevented that the gas from leaking and arousing danger.
In an alternative embodiment, the oxidant gas valve assembly 230 comprises an oxidant gas solenoid valve. The combustion-supporting gas electromagnetic valve is in signal connection with the control module, and the control module controls the on-off of the combustion-supporting gas flow path by controlling the on-off of the combustion-supporting gas electromagnetic valve.
In one embodiment, the fuel gas is any one of acetylene, natural gas and hydrogen, and the combustion-supporting gas is any one of air, oxygen and nitrous oxide. Preferably, the fuel gas is acetylene and the combustion-supporting gas is air.
As an optional implementation, as shown in fig. 2, the control system includes a human-computer interaction module, a control module, a combustion-supporting gas pressure monitoring module, a combustion-supporting gas pressure comparison module, a gas flow monitoring module, and a gas flow comparison module;
the human-computer interaction module is used for sending a starting signal or a closing signal to the combustion-supporting gas module;
the control module is used for opening the combustion-supporting air valve assembly 230 according to a starting signal sent by the man-machine interaction module, and is used for closing the gas valve assembly and delaying the closing of the combustion-supporting air valve assembly 230 according to a closing signal sent by the man-machine interaction module; the combustion-supporting gas valve component 230 and the gas valve component are controlled to be opened and closed according to signals sent by the combustion-supporting gas pressure comparison module and the gas flow comparison module;
the combustion-supporting gas pressure monitoring module is used for monitoring the pressure of combustion-supporting gas in real time and acquiring a real-time pressure value of the combustion-supporting gas;
the combustion-supporting gas pressure comparison module is used for comparing whether the real-time combustion-supporting gas pressure value is the same as the preset combustion-supporting gas pressure value or not, and sending a gas valve assembly opening signal to the control module when the real-time combustion-supporting gas pressure value is the same as the preset combustion-supporting gas pressure value; when the real-time combustion-supporting gas pressure value is different from the preset combustion-supporting gas pressure value, a signal for closing the gas valve assembly and a signal for delaying the closing of the combustion-supporting gas valve assembly 230 are sent to the control module;
the gas flow monitoring module is used for monitoring gas flow in real time and acquiring a real-time gas flow value;
the gas flow comparison module is used for comparing whether the real-time gas flow value is the same as the preset gas flow value or not, and when the real-time gas flow value is different from the preset gas flow value, a signal for closing the gas valve assembly and a signal for delaying the closing of the combustion-supporting gas valve assembly 230 are sent to the control module.
The control system realizes the accurate control of the on-off, flow and pressure of a gas flow path and a combustion-supporting gas flow path through a man-machine interaction module, a control module, a combustion-supporting gas pressure monitoring module, a combustion-supporting gas pressure comparison module, a gas flow monitoring module and a gas flow comparison module, can detect the gas flow in real time and the combustion-supporting gas pressure, avoids the problem of flame drifting in the combustion reaction, improves the stability of combustion flame, ensures the temperature of the combustion reaction, and avoids the risk of detonation or explosion caused by overlarge gas flow.
Accordingly, as shown in fig. 2, the control flow of the control system is as follows:
firstly, a man-machine interaction module receives an external signal for starting a current stabilizer and sends the starting signal to a control module;
then, the control module opens the combustion-supporting air valve assembly 230 according to the starting signal sent by the man-machine interaction module;
after the combustion-supporting gas valve component 230 is opened, the combustion-supporting gas pressure monitoring module monitors the combustion-supporting gas pressure in real time to obtain a real-time combustion-supporting gas pressure value;
the combustion-supporting gas pressure comparison module compares whether the real-time combustion-supporting gas pressure value is the same as a preset combustion-supporting gas pressure value or not, and sends a gas valve assembly opening signal to the control module when the real-time combustion-supporting gas pressure value is the same as the preset combustion-supporting gas pressure value; the control module starts a gas valve component according to a gas valve component opening signal sent by the gas-assisted pressure comparison module;
after the gas valve assembly is opened, the gas flow monitoring module is used for monitoring the gas flow in real time to obtain a real-time gas flow value;
and the gas flow comparison module compares whether the real-time gas flow value is the same as the preset gas flow value, and when the real-time gas flow value is the same as the preset gas flow value, the control module keeps unchanged until the control module receives a closing signal sent by the man-machine interaction module and closes the flow stabilizing device according to the closing signal sent by the man-machine interaction module.
When the real-time combustion-supporting gas pressure value is different from the preset combustion-supporting gas pressure value, the combustion-supporting gas pressure comparison module sends a signal for closing a gas valve assembly and a signal for delaying the closing of the combustion-supporting gas valve assembly 230 to the control module, then the control module closes the gas valve assembly according to the signal for closing the gas valve assembly and the signal for delaying the closing of the combustion-supporting gas valve assembly 230 sent by the combustion-supporting gas pressure comparison module and delays the closing of the combustion-supporting gas valve assembly 230, and the flow stabilizer is closed; if the gas valve assembly is not opened at this time, the gas valve assembly will not act.
When the real-time gas flow value is different from the preset gas flow value, the gas flow comparison module sends a gas valve component closing signal and a combustion-supporting gas valve component 230 delayed closing signal to the control module; the control module closes the gas valve component signal and closes the combustion-supporting gas valve component 230 with a delay according to the gas flow comparison module-sent gas valve component closing signal and the combustion-supporting gas valve component 230 closing signal with a delay, and the flow stabilizer is closed.
As an optional implementation mode, the human-computer interaction module is further used for sending a combustion-supporting gas pressure control value signal and a gas flow control value signal to the control module;
the control module controls the proportional valve 240 and the mass flow controller 130 according to the combustion-supporting gas pressure control value signal and the gas flow control value signal sent by the man-machine interaction module.
The control module controls the proportional valve 240 and the mass flow controller 130, so that the fuel-to-assist ratio can be controlled in real time, the accurate control of the fuel-to-assist ratio is realized, and the control of combustion stability and combustion temperature is facilitated.
Further preferably, the control module can also control the proportional valve 240 and the mass flow controller 130 according to the real-time gas flow value obtained by the gas flow monitoring module and the real-time combustion-supporting gas pressure value obtained by the combustion-supporting gas pressure monitoring module, so that the gas flow value is maintained within a preset gas flow value range through automatic regulation and control, and the combustion-supporting gas pressure value is maintained within a preset combustion-supporting gas pressure value range.
As an alternative embodiment, the pressure value of the combustion-supporting gas is preset to be (1 +/-5%) times of the pressure control value of the combustion-supporting gas; the preset gas flow value is 1 +/-5 percent times of the gas flow control value.
As an optional implementation mode, the control system comprises a gas leakage detection module, and the gas leakage detection module is used for detecting whether gas leakage exists in a gas flow path. Further, the control module is used for controlling the opening and closing of the combustion-supporting gas valve assembly 230 and the gas valve assembly according to the gas leakage signal sent by the gas leakage detection device. Through the gas leakage module real-time detection gas flow path, can in time discover that the gas leaks danger to carry out the processing of pertinence, avoid the incident.
The utility model discloses a gas and combustion-supporting gas current stabilizer have the mass flow and the pressure that can real-time supervision control gas and combustion-supporting gas, and the problem that flame drifted in avoiding the combustion reaction improves the stability of burning flame to mass flow that can the accurate control gas ensures the temperature of combustion reaction, avoids the too big risk that leads to detonating or explosion of gas flow, suitably is applied to in the atomic absorption spectrometer. When an atomic absorption spectrometer is used for testing different heavy metal indexes, the mixing ratio of fuel and combustion-supporting gas needs to be controlled, so that the combustion reaction temperature required by the tested heavy metal is reached. The combustion-supporting gas pressure and the combustion-supporting gas flow are regulated and controlled by the control system, and when the combustion-supporting gas flow or the combustion-supporting gas pressure is abnormal, the combustion-supporting gas flow path and the combustion gas flow path can be automatically controlled to be disconnected, so that the safety performance of the instrument in use is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fuel gas and combustion-supporting gas flow stabilizer is characterized in that the fuel gas and combustion-supporting gas flow stabilizer comprises a fuel gas flow path, a combustion-supporting gas flow path and a control system;
the gas flow path comprises a gas source (110), a gas valve assembly and a mass flow controller (130) which are sequentially communicated through a gas pipeline;
the combustion-supporting gas flow path comprises a combustion-supporting gas compressor (210), an oil mist separator (220), a combustion-supporting gas valve component (230) and a proportional valve (240) which are sequentially communicated through a combustion-supporting gas pipeline;
the control system is in signal connection with the combustion-supporting gas valve component (230), the proportional valve (240), the gas valve component and the mass flow controller (130).
2. A gas and oxidant gas flow stabilizer as claimed in claim 1, in which said gas valve assembly includes a first gas solenoid valve (121).
3. A gas and oxidant gas flow stabilizer as set forth in claim 2 in which said gas valve assembly further includes a second gas solenoid valve (122).
4. A combustion gas and combustion gas flow stabilizer according to claim 1, characterized in that the combustion gas is any one of acetylene, natural gas and hydrogen, and the combustion gas is any one of air, oxygen and nitrous oxide.
5. The gas and combustion-supporting gas flow stabilizer according to claim 1, wherein the control system comprises a man-machine interaction module, a control module, a combustion-supporting gas pressure monitoring module, a combustion-supporting gas pressure comparison module, a gas flow monitoring module and a gas flow comparison module;
the human-computer interaction module is used for sending a starting signal or a closing signal to the combustion-supporting gas module;
the control module is used for opening the combustion-supporting gas valve component (230) according to a starting signal sent by the man-machine interaction module, and is used for closing the gas valve component and closing the combustion-supporting gas valve component (230) in a delayed manner according to a closing signal sent by the man-machine interaction module; the combustion-supporting gas valve component (230) and the gas valve component are controlled to be opened and closed according to signals sent by the combustion-supporting gas pressure comparison module and the gas flow comparison module;
the combustion-supporting gas pressure monitoring module is used for monitoring the combustion-supporting gas pressure in real time and acquiring a real-time combustion-supporting gas pressure value;
the combustion-supporting gas pressure comparison module is used for comparing whether the real-time combustion-supporting gas pressure value is the same as a preset combustion-supporting gas pressure value or not, and sending a gas valve assembly opening signal to the control module when the real-time combustion-supporting gas pressure value is the same as the preset combustion-supporting gas pressure value; when the real-time combustion-supporting gas pressure value is different from the preset combustion-supporting gas pressure value, a signal for closing a gas valve assembly and a signal for closing a combustion-supporting gas valve assembly (230) in a delayed mode are sent to the control module;
the gas flow monitoring module is used for monitoring gas flow in real time and acquiring a real-time gas flow value;
and the gas flow comparison module is used for comparing whether the real-time gas flow value is the same as a preset gas flow value or not, and sending a gas valve component closing signal and a combustion-supporting gas valve component (230) delayed closing signal to the control module when the real-time gas flow value is different from the preset gas flow value.
6. The gas and combustion-supporting gas flow stabilizer according to claim 5, wherein the human-computer interaction module is further configured to send a combustion-supporting gas pressure control value signal and a gas flow control value signal to the control module;
the control module is also used for controlling the proportional valve (240) and the mass flow controller (130) according to the combustion-supporting gas pressure control value signal and the gas flow control value signal sent by the man-machine interaction module.
7. A gas and oxidant gas flow stabilizer according to claim 6 in which said predetermined oxidant gas pressure value is (1 ± 5%) times said oxidant gas pressure control value; the preset gas flow value is (1 +/-5%) times of the gas flow control value.
8. A gas and oxidant gas flow stabilizer according to claim 5, characterised in that the control system includes a gas leak detection module for detecting the presence of gas leakage in said gas flow path.
9. The gas and oxidant gas flow stabilizer of claim 8, wherein said control module is configured to control the opening and closing of said oxidant gas valve assembly (230) and said gas valve assembly based on a gas leak signal sent by said gas leak detector.
10. A gas and oxidant gas flow stabilizer according to any one of claims 1 to 9 in which the gas and oxidant gas flow stabilizer is for use in an atomic absorption spectrometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021928074.9U CN213577476U (en) | 2020-09-07 | 2020-09-07 | Gas and combustion-supporting gas current stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021928074.9U CN213577476U (en) | 2020-09-07 | 2020-09-07 | Gas and combustion-supporting gas current stabilizer |
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| Publication Number | Publication Date |
|---|---|
| CN213577476U true CN213577476U (en) | 2021-06-29 |
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|---|---|---|---|
| CN202021928074.9U Expired - Fee Related CN213577476U (en) | 2020-09-07 | 2020-09-07 | Gas and combustion-supporting gas current stabilizer |
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| Country | Link |
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2020
- 2020-09-07 CN CN202021928074.9U patent/CN213577476U/en not_active Expired - Fee Related
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Effective date of registration: 20211228 Address after: 310053 Room 301, 3 / F, building 1, 22 Zhiren street, Puyan street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU CHUNLAI TECHNOLOGY Co.,Ltd. Address before: 310053 Room 401, building 1, No. 22, Park Middle Road, Puyan street, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU QILYU TECHNOLOGY CO.,LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |