CN215866535U - Volatile organic compound on-line monitoring system with automatic calibration function - Google Patents
Volatile organic compound on-line monitoring system with automatic calibration function Download PDFInfo
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- CN215866535U CN215866535U CN202122052066.3U CN202122052066U CN215866535U CN 215866535 U CN215866535 U CN 215866535U CN 202122052066 U CN202122052066 U CN 202122052066U CN 215866535 U CN215866535 U CN 215866535U
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Abstract
The utility model discloses an online volatile organic compound monitoring system with an automatic calibration function, which comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a main frame, the right side of the top of the main frame is fixedly connected with a processor, a heating gasification box is fixedly connected below the top of an inner cavity of the main frame, the top of the bottom plate is fixedly connected with a gas chromatograph, and the top of the main frame is fixedly connected with a sampling pump. According to the utility model, by arranging the extraction pipe, the sampling pump, the control valve, the sample discharge pipe, the processor, the heating gasification box, the electric heating assembly, the vacuum pump, the temperature sensor, the connecting pipe, the air pressure sensor, the nitrogen cylinder, the nitrogen pipe and the electromagnetic valve, a liquid sample can be heated and gasified, the problem that a gas-liquid mixture is inconvenient to detect is solved, and by arranging the flow meter control valve, the display and the gas chromatograph, related data can be acquired and qualitative and quantitative analysis can be carried out on the completely gasified sample.
Description
Technical Field
The utility model relates to the technical field of environment detection, in particular to an online volatile organic compound monitoring system with an automatic calibration function.
Background
The volatile organic compounds refer to organic compounds with saturated vapor pressure of more than 70Pa at normal temperature and boiling point of below 260 ℃ at normal pressure, or all organic compounds with vapor pressure of more than or equal to 10Pa and volatility at 20 ℃, and are generally divided into non-methane hydrocarbon compounds, oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, sulfur-containing organic compounds and the like, the volatile organic compounds participate in the formation of ozone and secondary aerosol in the atmospheric environment, and have important influence on regional atmospheric ozone pollution and PM2.5 pollution, most volatile organic compounds have special unpleasant odor, toxicity, irritation, teratogenicity and carcinogenic effect, are also important precursors causing urban dust haze and photochemical smog, and mainly come from the processes of coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and using and the like, in the process of monitoring a sample, volatile organic compounds are in a gas-liquid mixed state, so that the volatile organic compounds are extremely difficult to calibrate, qualitatively and quantitatively analyze, and are relatively complex to operate and low in accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an online volatile organic compound monitoring system with an automatic calibration function, which has the advantages of high monitoring precision, convenience in use and good stability, and solves the problems that the volatile organic compound is extremely difficult to calibrate, qualitatively and quantitatively analyze, complex to operate and low in precision due to the existence of a gas-liquid mixed state.
In order to achieve the purpose, the utility model provides the following technical scheme: the volatile organic compound on-line monitoring system with the automatic calibration function comprises a bottom plate, wherein a main frame is fixedly connected to the top of the bottom plate, a processor is fixedly connected to the right side of the top of the main frame, a heating gasification box is fixedly connected to the lower portion of the top of an inner cavity of the main frame, a gas chromatograph is fixedly connected to the top of the bottom plate, a sampling pump is fixedly connected to the top of the main frame, a liquid pumping port of the sampling pump is communicated with a pumping pipe, a liquid discharging port of the sampling pump is communicated with a sample discharging pipe, a control valve is arranged on the surface of the sample discharging pipe, the lower end of the sample discharging pipe penetrates through the inner cavity of the heating gasification box, electric heating assemblies are arranged on two sides of the top of the inner cavity of the heating gasification box, a nitrogen cylinder is fixedly connected to the left side of the heating gasification box, a nitrogen pipe is communicated with the top of the nitrogen cylinder, and an electromagnetic valve is arranged on the surface of the nitrogen pipe, the upper end of the nitrogen pipe penetrates through and extends to the inner cavity of the heating gasification box, the right side of the heating gasification box is communicated with a vacuum pump, the left side of the inner cavity of the heating gasification box is fixedly connected with an air pressure sensor, the right side of the inner cavity of the heating gasification box is fixedly connected with a temperature sensor, the bottom of the heating gasification box is communicated with a connecting pipe, the surface of the connecting pipe is provided with a flow meter control valve, the lower end of the connecting pipe is communicated with a gas chromatograph, the front of the gas chromatograph is fixedly connected with a display, the bottom of the gas chromatograph is fixedly connected with the top of the bottom plate, the output ends of the temperature sensor and the air pressure sensor are both in one-way electric connection with the input end of the processor, the output end of the processor is respectively and unidirectionally electrically connected with the electric heating assembly, the electromagnetic valve, the flow meter control valve and the gas chromatograph, and the output end of the gas chromatograph is unidirectionally and electrically connected with the input end of the display.
Preferably, an operation panel is fixedly connected to the front surface of the gas chromatograph, and a work indicator lamp is arranged on the surface of the operation panel.
Preferably, the two sides of the bottom plate are fixedly connected with anti-slip pads, and anti-slip lines are formed in the bottoms of the anti-slip pads.
Preferably, the bottom of the nitrogen cylinder is fixedly connected with a supporting plate, and the right side of the supporting plate is fixedly connected with the outer wall of the heating gasification box.
Preferably, the bottom of the sampling pump is fixedly connected with a supporting seat, and the inner wall of the supporting seat is fixedly connected with a cushion pad.
Preferably, the number of the electric heating assemblies is two, and the electric heating assemblies are uniformly and symmetrically distributed at the upper end of the inner cavity of the heating gasification box.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, by arranging the extraction pipe, the sampling pump, the control valve, the sample discharge pipe, the processor, the heating gasification box, the electric heating assembly, the vacuum pump, the temperature sensor, the connecting pipe, the air pressure sensor, the nitrogen cylinder, the nitrogen pipe and the electromagnetic valve, a liquid sample can be heated and gasified, the problem that a gas-liquid mixture is inconvenient to detect is solved, and by arranging the flow meter control valve, the display and the gas chromatograph, related data can be acquired and qualitative and quantitative analysis can be carried out on the completely gasified sample.
2. According to the utility model, by arranging the operation panel and the work indicator light, the operation of the device can be simpler and faster, the convenience of the use of the device is effectively improved, the friction force at the bottom of the device can be increased by arranging the anti-slip pad and the anti-slip lines, the stability of the device is effectively improved, the nitrogen cylinder can be fixedly supported by arranging the support plate, the stability of the nitrogen cylinder is effectively improved, the sampling pump can be supported and buffered by arranging the support seat, the vibration of the sampling pump in the operation process is effectively reduced, the quantity and the positions of the electric heating assemblies are determined, the interior of the heating gasification box can be uniformly heated, and the gasification speed of organic matters is effectively improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a heated vaporization chamber of the present invention;
fig. 3 is a schematic diagram of the system of the present invention.
In the figure: 1. a base plate; 2. a non-slip mat; 3. a main frame; 4. an extraction pipe; 5. a sampling pump; 6. a control valve; 7. a sample discharge pipe; 8. a processor; 9. heating the gasification box; 10. a flow meter control valve; 11. a display; 12. a gas chromatograph; 13. an electric heating component; 14. a vacuum pump; 15. a temperature sensor; 16. a connecting pipe; 17. an air pressure sensor; 18. a nitrogen gas cylinder; 19. a nitrogen gas pipe; 20. an 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The bottom plate 1, the non-slip mat 2, the main frame 3, the extraction pipe 4, the sampling pump 5, the control valve 6, the sampling pipe 7, the processor 8, the heating gasification box 9, the flow meter control valve 10, the display 11, the gas chromatograph 12, the electric heating assembly 13, the vacuum pump 14, the temperature sensor 15, the connecting pipe 16, the air pressure sensor 17, the nitrogen cylinder 18, the nitrogen pipe 19 and the electromagnetic valve 20 are all universal standard parts or parts known by a person skilled in the art, and the structure and the principle of the utility model can be known by a technical manual or a conventional experimental method.
Referring to fig. 1-3, an online volatile organic compound monitoring system with an automatic calibration function comprises a base plate 1, a main frame 3 is fixedly connected to the top of the base plate 1, anti-slip pads 2 are fixedly connected to both sides of the bottom of the base plate 1, anti-slip patterns are formed in the bottoms of the anti-slip pads 2, friction force at the bottom of the device can be increased by arranging the anti-slip pads 2 and the anti-slip patterns, stability of the device is effectively improved, a processor 8 is fixedly connected to the right side of the top of the main frame 3, a heating gasification box 9 is fixedly connected to the lower portion of the top of an inner cavity of the main frame 3, a gas chromatograph 12 is fixedly connected to the top of the base plate 1, a sampling pump 5 is fixedly connected to the top of the main frame 3, a support seat is fixedly connected to the bottom of the sampling pump 5, a cushion pad is fixedly connected to the inner wall of the support seat, and the support seat is arranged to support and buffer the sampling pump 5, the vibration of the sampling pump 5 in the operation process is effectively reduced, the liquid pumping port of the sampling pump 5 is communicated with the pumping pipe 4, the liquid discharging port of the sampling pump 5 is communicated with the sample discharging pipe 7, the surface of the sample discharging pipe 7 is provided with the control valve 6, the lower end of the sample discharging pipe 7 penetrates through and extends to the inner cavity of the heating and gasifying box 9, the two sides of the top of the inner cavity of the heating and gasifying box 9 are respectively provided with the electric heating assembly 13, the left side of the heating and gasifying box 9 is fixedly connected with the nitrogen cylinder 18, the bottom of the nitrogen cylinder 18 is fixedly connected with the supporting plate, the right side of the supporting plate is fixedly connected with the outer wall of the heating and gasifying box 9, the nitrogen cylinder 18 can be fixedly supported by arranging the supporting plate, the stability of the nitrogen cylinder 18 is effectively improved, the top of the nitrogen cylinder 18 is communicated with the nitrogen pipe 19, the surface of the nitrogen pipe 19 is provided with the electromagnetic valve 20, the upper end of the nitrogen pipe 19 penetrates through and extends to the inner cavity of the heating and gasifying box 9, the right side of the heating gasification box 9 is communicated with a vacuum pump 14, the left side of the inner cavity of the heating gasification box 9 is fixedly connected with an air pressure sensor 17, the right side of the inner cavity of the heating gasification box 9 is fixedly connected with a temperature sensor 15, the bottom of the heating gasification box 9 is communicated with a connecting pipe 16, the surface of the connecting pipe 16 is provided with a flow meter control valve 10, the lower end of the connecting pipe 16 is communicated with a gas chromatograph 12, the front of the gas chromatograph 12 is fixedly connected with an operation panel, the surface of the operation panel is provided with a work indicator lamp, the operation of the device can be simpler and faster by arranging the operation panel and the work indicator lamp, the convenience of the use of the device is effectively improved, the front of the gas chromatograph 12 is fixedly connected with a display 11, the bottom of the gas chromatograph 12 is fixedly connected with the top of the bottom plate 1, and the output ends of the temperature sensor 15 and the air pressure sensor 17 are all in one-way electric connection with the input end of the processor 8, the output end of the processor 8 is respectively and unidirectionally electrically connected with the electric heating assembly 13, the electromagnetic valve 20, the flow meter control valve 10 and the gas chromatograph 12, the output end of the gas chromatograph 12 is unidirectionally and electrically connected with the input end of the display 11, the number of the electric heating assemblies 13 is two, and the electric heating assemblies are uniformly and symmetrically distributed at the upper end of the inner cavity of the heating and gasifying box 9, the internal part of the heating and gasifying box 9 can be uniformly heated by determining the number and the positions of the electric heating assemblies 13, the gasifying speed of organic matters is effectively improved, the samples in a liquid state can be heated and gasified by arranging the extraction pipe 4, the sampling pump 5, the control valve 6, the sample discharge pipe 7, the processor 8, the heating and gasifying box 9, the electric heating assemblies 13, the vacuum pump 14, the temperature sensor 15, the connecting pipe 16, the baroceptor 17, the nitrogen cylinder 18, the nitrogen pipe 19 and the electromagnetic valve 20, so that the gas-liquid samples are not convenient to detect, by providing the flow meter control valve 10, the display 11 and the gas chromatograph 12, data related to the completely gasified sample can be collected and qualitative and quantitative analysis can be performed.
When in use, the vacuum pump 14 is started firstly, air in the inner cavity of the heating gasification box 9 is pumped out, the sampling pump 5 and the control valve 6 are started, a gas-liquid mixed sample can be pumped into the heating gasification box 9, the temperature and the pressure in the heating gasification box 9 can be monitored in real time through the temperature sensor 15 and the air pressure sensor 17 and fed back to the processor 8, when the temperature is lower than a set value, the electric heating assembly 13 can be controlled to be started to heat the inside of the heating gasification box 9 until the temperature exceeds the pressure corresponding to the boiling point of an organic matter, the processor 8 controls the flow meter control valve 10 and the electromagnetic valve 20 to be started, nitrogen is introduced into the heating gasification box 9 through the electromagnetic valve 20, the gas in the heating gasification box 9 can be discharged, when the gas passes through the flow meter control valve 10, the gas chromatograph 12 is controlled to be started and the flow meter control valve 10 is closed through the processor 8, the operation of the gas chromatograph 12 can collect relevant data and perform qualitative and quantitative analysis on the sample gas, and the data is transmitted to the display 11 through the output end of the gas chromatograph 12 to be reflected, so that the effect of automatically calibrating volatile organic compounds is achieved, and the device has the advantages of high monitoring precision, convenience in use, good stability and suitability for popularization and use through the matching of the structure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a volatile organic compounds on-line monitoring system with automatic calibration function, includes bottom plate (1), its characterized in that: the top of the bottom plate (1) is fixedly connected with a main frame (3), the right side of the top of the main frame (3) is fixedly connected with a processor (8), the lower part of the top of the inner cavity of the main frame (3) is fixedly connected with a heating gasification box (9), the top of the bottom plate (1) is fixedly connected with a gas chromatograph (12), the top of the main frame (3) is fixedly connected with a sampling pump (5), a liquid pumping port of the sampling pump (5) is communicated with an extraction pipe (4), a liquid discharging port of the sampling pump (5) is communicated with a sample discharging pipe (7), the surface of the sample discharging pipe (7) is provided with a control valve (6), the lower end of the sample discharging pipe (7) penetrates through the inner cavity extending to the heating gasification box (9), both sides of the top of the inner cavity of the heating gasification box (9) are provided with electric heating assemblies (13), the left side of the heating gasification box (9) is fixedly connected with a nitrogen bottle (18), the top intercommunication of nitrogen cylinder (18) has nitrogen gas pipe (19), the surface of nitrogen gas pipe (19) is provided with solenoid valve (20), the inner chamber that extends to heating gasification case (9) is run through to the upper end of nitrogen gas pipe (19), the right side intercommunication of heating gasification case (9) has vacuum pump (14), the left side fixedly connected with baroceptor (17) of heating gasification case (9) inner chamber, the right side fixedly connected with temperature sensor (15) of heating gasification case (9) inner chamber, the bottom intercommunication of heating gasification case (9) has connecting pipe (16), the surface of connecting pipe (16) is provided with flowmeter accuse valve (10), the lower extreme intercommunication of connecting pipe (16) has gas chromatograph (12), the front fixedly connected with display (11) of gas chromatograph (12), the bottom and the top fixed connection of bottom plate (1) of gas chromatograph (12), the output of temperature sensor (15) and baroceptor (17) all with the one-way electric connection of input of treater (8), the output of treater (8) respectively with electric heating element (13), solenoid valve (20), flowmeter accuse valve (10) and the one-way electric connection of gas chromatograph (12), the one-way electric connection of input of output and display (11) of gas chromatograph (12).
2. The online volatile organic compound monitoring system with the automatic calibration function as claimed in claim 1, wherein: the front surface of the gas chromatograph (12) is fixedly connected with an operation panel, and the surface of the operation panel is provided with a work indicator light.
3. The online volatile organic compound monitoring system with the automatic calibration function as claimed in claim 1, wherein: the antiskid shoe is characterized in that antiskid pads (2) are fixedly connected to two sides of the bottom of the base plate (1), and antiskid lines are formed in the bottoms of the antiskid pads (2).
4. The online volatile organic compound monitoring system with the automatic calibration function as claimed in claim 1, wherein: the bottom of the nitrogen cylinder (18) is fixedly connected with a supporting plate, and the right side of the supporting plate is fixedly connected with the outer wall of the heating gasification box (9).
5. The online volatile organic compound monitoring system with the automatic calibration function as claimed in claim 1, wherein: the bottom fixedly connected with supporting seat of sampling pump (5), and the inner wall fixedly connected with blotter of supporting seat.
6. The online volatile organic compound monitoring system with the automatic calibration function as claimed in claim 1, wherein: the number of the electric heating components (13) is two, and the electric heating components are uniformly and symmetrically distributed at the upper end of the inner cavity of the heating gasification box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122052066.3U CN215866535U (en) | 2021-08-30 | 2021-08-30 | Volatile organic compound on-line monitoring system with automatic calibration function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122052066.3U CN215866535U (en) | 2021-08-30 | 2021-08-30 | Volatile organic compound on-line monitoring system with automatic calibration function |
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| Publication Number | Publication Date |
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| CN215866535U true CN215866535U (en) | 2022-02-18 |
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| CN202122052066.3U Active CN215866535U (en) | 2021-08-30 | 2021-08-30 | Volatile organic compound on-line monitoring system with automatic calibration function |
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2021
- 2021-08-30 CN CN202122052066.3U patent/CN215866535U/en active Active
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Address after: 9th Floor, Building 3, Zone 6, No. 188 South Fourth Ring West Road, Fengtai District, Beijing, 100070 Patentee after: Beijing Guolian video information technology Co.,Ltd. Address before: Room 703, building 1, No. 1, Shangdi Information Road, Haidian District, Beijing 100089 Patentee before: Beijing Guolian video information technology Co.,Ltd. |
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