Integrated ultraviolet gas analyzer

Abstract

The utility model relates to the technical field of gas analyzers, and discloses an integrated ultraviolet gas analyzer which comprises a case internally provided with an upper-layer space and a lower-layer space; the upper-layer space is provided with a heat tracing pipe connecting unit, a high-temperature gas detection gas pool unit, a calibration and gas path execution unit and a pump unit; the lower layer space is provided with a mainboard control unit, a power supply unit, an ultraviolet spectrometer and an ultraviolet light source; wherein the high-temperature gas detection gas cell unit comprises a gas cell, the gas cell is provided with a light inlet and a light outlet, an ultraviolet light source is connected with the light inlet, and an ultraviolet spectrometer is connected with the light outlet; and the calibration and gas path execution unit is connected with the gas pool and is used for calibrating the analyzer. According to the utility model, a plurality of units of the gas analyzer are designed into the case with the double-layer structure, so that the gas analyzer is compact in structure, can be suitable for general measurement sites, and also can be suitable for mobile monitoring and industrial sites with limited space.

Description

Technical Field

[0001] This utility model relates to the field of gas analyzer technology, and in particular to an integrated ultraviolet gas analyzer. Background Technology

[0002] In the field of industrial flue gas emission monitoring, ultraviolet (UV) flue gas analyzers are key equipment for detecting pollutants such as SO2 and NOx. Traditional high-temperature UV flue gas analysis systems typically employ a split-cabinet design, integrating multiple independent components such as the gas analyzer, high-temperature processing system, gas path unit, and control module. This results in bulky equipment (e.g., dimensions of 600mm × 800mm × 1800mm) and heavy weight (e.g., approximately 300KG), requiring installation using expansion bolts. This structure has the following drawbacks: poor mobility; the bulky cabinet cannot adapt to scenarios requiring equipment movement, such as vehicle-mounted monitoring or temporary monitoring points, and is even more difficult to integrate into space-constrained industrial sites (such as narrow pipeline areas in petrochemical plants); difficult installation and maintenance; large cabinets require specialized transport vehicles for transport, installation necessitates damage to the ground, and debugging and maintenance require multi-module collaborative operation, leading to high labor costs; functional redundancy and wasted space; traditional designs, in order to accommodate different operating conditions, often over-configure redundant components (such as independent calibration units and multi-stage pretreatment systems), resulting in low actual utilization while occupying space. Utility Model Content

[0003] The purpose of this invention is to provide an integrated ultraviolet gas analyzer that integrates multiple units of a traditional cabinet-style high-temperature ultraviolet gas analyzer into a small, double-layered chassis. This compact design is adaptable to general measurement sites, as well as mobile monitoring and space-constrained industrial environments, meeting customers' integration and expansion needs. It offers high flexibility and low cost.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] An integrated ultraviolet gas analyzer includes,

[0006] The chassis has an upper and lower internal space.

[0007] The chassis panel and industrial control computer are located on one side of the chassis and are used to process and store the detection data of the gas analyzer.

[0008] The upper space is equipped with a heat tracing pipe connection unit, a high-temperature gas detection gas pool unit, a calibration and gas path execution unit, and a pump unit; the lower space is equipped with a main board control unit, a power supply unit, an ultraviolet spectrometer, and an ultraviolet light source.

[0009] The high-temperature gas detection gas cell unit includes a gas cell, which is provided with a light inlet and a light outlet. The ultraviolet light source is connected to the light inlet, and the ultraviolet spectrometer is connected to the light outlet.

[0010] The calibration and gas path execution unit is connected to the gas cell and is used for the calibration of the analyzer;

[0011] The gas pool is connected to an air intake manifold unit, which integrates an air intake port, a full-range calibration port, and an exhaust port for the gas pool.

[0012] The heat tracing pipe connection unit is used to connect the external heat tracing pipe and the sampling unit.

[0013] As a further feature of this invention, the chassis is a standard 4U~10U sheet metal chassis.

[0014] As a further feature of this invention, the high-temperature gas detection gas pool unit also includes a heating unit, which is used to heat the components of the high-temperature gas detection gas pool unit. The heating unit includes a cast aluminum heating block and a mica heating plate.

[0015] As a further feature of this invention, the high-temperature gas detection gas pool unit is provided with a heat-insulating outer shell.

[0016] As a further feature of this invention, a zirconia sensor is provided on the outside of the gas pool, which is used to measure the oxygen content and water content of the high-temperature gas in the gas pool.

[0017] As a further feature of this invention, the air intake manifold unit is connected to a filter element unit, which is used to filter the gas entering the gas pool.

[0018] As a further feature of this invention, the lower space is also provided with a constant temperature control unit for controlling the internal temperature of the analyzer. The constant temperature control unit includes a heat dissipation structure and a heater.

[0019] As a further feature of this invention, the heat dissipation structure includes multiple cooling fans mounted on the chassis and circulating heat dissipation holes mounted on the chassis.

[0020] As a further feature of this invention, the heater is a heating fan installed in the lower space.

[0021] As a further feature of this invention, the ultraviolet light source is connected to a heat dissipation fan.

[0022] The beneficial effects of this utility model are:

[0023] This application utilizes a layered design within a small chassis, placing the analyzer's heat tracing pipe connection unit, high-temperature gas detection gas pool unit, calibration and gas path execution unit, and pump unit on the upper layer, while the mainboard control unit, power supply unit, ultraviolet spectrometer, and ultraviolet light source are located on the lower layer. Compared to the discrete design of traditional cabinet-style high-temperature ultraviolet gas analyzers, the gas analyzer of this application has a compact overall structure and high integration. It can adapt to general measurement sites, as well as mobile monitoring (vehicle-mounted, mounted) and space-constrained industrial sites, meeting customers' integration and expansion needs with high flexibility and low cost. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the upper structure and internal device structure of this embodiment;

[0026] Figure 2 This is a schematic diagram of the lower layer structure and internal device structure of this embodiment;

[0027] Figure 3 This is a schematic diagram of the high-temperature gas detection gas cell unit structure in this embodiment;

[0028] In the diagram, 1. Chassis; 101. Upper space; 102. Lower space; 2. Chassis panel and industrial computer; 3. Heat tracing pipe connection unit; 4. High-temperature gas detection gas tank unit; 41. Gas tank; 42. Heating unit; 43. Zirconia sensor; 44. Inlet manifold unit; 45. Filter unit; 5. Calibration and gas path execution unit; 6. Mainboard control unit; 7. Power supply unit; 8. Ultraviolet spectrometer; 9. Ultraviolet light source; 10. Cooling fan; 11. Circulating heat dissipation hole; 12. Heating fan; 13. Light source cooling fan; 14. Pump unit. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] An integrated ultraviolet gas analyzer, reference Figures 1 to 3 ,include,

[0031] The chassis 1 has an upper space 101 and a lower space 102 inside;

[0032] The chassis panel and industrial computer 2 are located on one side of the chassis 1 and are used to process and store the 10 detection data of the gas analyzer, which facilitates system upgrades and maintenance.

[0033] The upper space 101 is equipped with a heat tracing pipe connection unit 3, a high-temperature gas detection gas pool unit 4, a calibration and gas path execution unit 5, and a pump unit 14;

[0034] The lower space 102 is equipped with a motherboard control unit 6, a power supply unit 7, an ultraviolet spectrometer 8, and an ultraviolet light source 9;

[0035] Among them, the high-temperature gas detection gas cell unit 4 includes a gas cell 41, which is provided with a light inlet and a light outlet. The ultraviolet light source 9 is connected to the light inlet, and the ultraviolet spectrometer 8 is connected to the light outlet.

[0036] The calibration and gas path execution unit 5 is connected to the gas cell 41 and is used for the calibration of the analyzer;

[0037] The heat tracing pipe connection unit 3 is used to connect the external heat tracing pipe and the sampling unit.

[0038] The analyzer integrates multiple functional units into a miniaturized chassis, typically 4U to 10U in size. In this embodiment, a standard 6U sheet metal chassis is used, with dimensions of 555mm × 482.6mm × 276mm (length × width × height) and a weight of approximately 30KG. This results in a compact and highly integrated gas analyzer that can adapt to general measurement environments, mobile monitoring (vehicle-mounted, mounted), and space-constrained industrial environments. Furthermore, the standard 6U chassis design allows for integration and expansion by customers, offering high flexibility and low cost.

[0039] Specifically, in this embodiment, the standard 6U chassis 1 has a mounting plate fixed in the middle of its interior, which divides the interior of the chassis 1, and multiple functional units are mounted on the two sides of the mounting plate.

[0040] The heat tracing pipe connection unit 3 is used to connect with the external heat tracing pipe and sampling unit. The high-temperature gas enters the gas pool 41 through the external sampling unit and heat tracing pipe for detection. The gas pool 41 is connected to the ultraviolet light source 9 and the ultraviolet spectrometer 8. The light emitted by the ultraviolet light source 9 enters the gas pool 41 and is absorbed by the sampled gas. After multiple reflections, it is emitted from the light outlet. The light signal is collected by the ultraviolet spectrometer 8 and analyzed to finally determine the component content in the collected gas.

[0041] The gas cell 41 is equipped with a collimating mirror and a reflecting mirror, which are respectively connected to the ultraviolet spectrometer 8 and the ultraviolet light source 9 via ultraviolet optical fibers. After being collimated and coupled into the ultraviolet optical fiber, the ultraviolet light is emitted from the other end, collimated, and enters the gas cell 41 through the light inlet. After being reflected multiple times in the gas cell 41, it is emitted from the light outlet and collimated and coupled into another ultraviolet optical fiber, finally reaching the ultraviolet spectrometer 8.

[0042] The calibration and gas path execution unit 5 is used for the calibration and calibration of the analyzer. This includes routine calibration by directly introducing pure standard gas into the gas cell 41 for detection, and calibration by introducing standard gas into an external acquisition unit to simulate the entire process of flue gas entering the gas cell 41, ensuring the accuracy of the analyzer's detection. The calibration and gas path execution unit 5 also enables automatic gas mixing calibration, sampling, zeroing, automatic gas mixing, and full-process calibration of the system. It allows for remote, intelligent, unmanned, timed automatic calibration and calibration, and also has flow control and flow monitoring functions. Through flow monitoring data, it automatically controls the system to perform backflushing actions in real time, ensuring the normal operation of the system and achieving unmanned automatic purging and maintenance.

[0043] The high-temperature gas detection gas pool unit 4 also includes a heating unit 42, which is used to heat the components of the high-temperature gas detection gas pool unit 41. The heating unit 42 includes a cast aluminum heating block and a mica heating plate.

[0044] The analyzer in this embodiment is mainly used for the detection of high-temperature flue gas. If the gas and water vapor in the industrial flue gas are directly introduced into the analyzer without processing, they will condense into liquid at low temperature. This liquid will be adsorbed in the gas pipeline or gas pool 41, resulting in measurement distortion. At the same time, it will also have a corrosive effect on the lens in the gas pipeline and gas pool 41, shortening the instrument's lifespan.

[0045] In this embodiment, the heating unit 42 heats the high-temperature gas detection gas pool 41 unit 4 to maintain a high-temperature measurement environment, ensuring that the flue gas always passes through the gas path and gas pool 41 in a gaseous state, retaining the original components of the flue gas, while reducing the physical adsorption of the flue gas and avoiding detection response delay.

[0046] In this embodiment, the heating unit 42 adopts a structure of cast aluminum heating block combined with pre-embedded mica heating sheet, which provides stable heating, high thermal efficiency, and can achieve rapid temperature rise.

[0047] The high-temperature gas detection gas pool unit 4 is equipped with a heat-insulating outer shell.

[0048] Since the high-temperature gas detection gas pool unit 4 is always in a high-temperature state during detection, in order to avoid the heat from affecting other functional units, the high-temperature gas detection gas pool unit 4 is equipped with a heat-insulating shell. This setting can also ensure that the high-temperature zone is always in a high-temperature state.

[0049] A sensor unit is installed on the outside of the gas pool 41. The sensor unit is used to measure the oxygen content and water content of the high-temperature gas in the gas pool 41.

[0050] The sensor unit is directly integrated into the high-temperature zone of the gas cell 41, which can shorten the response time.

[0051] The sensor unit is a zirconia sensor 43.

[0052] The zirconia sensor 43 can perform direct measurements in high-temperature regions and has a fast response.

[0053] The gas pool 41 is connected to an air intake manifold unit 44, which integrates the air intake port, full-range calibration port and exhaust port of the gas pool 41.

[0054] The intake manifold unit 44 efficiently integrates the multiple airflows of the analyzer, such as sampling gas, calibration gas, and exhaust gas, enabling single-point access and multi-functional switching. This solves the problem of bulky size caused by the dispersed gas paths of traditional analyzers. The modular design not only reserves space for tool operation but also features a compact design that occupies minimal space.

[0055] The intake manifold unit 44 is connected to a filter element unit 45, which is used to filter the gas entering the gas pool 41.

[0056] The filter element unit 45 adopts a sintered filter element unit, which effectively prevents dust in the flue gas from contaminating the lens inside the gas pool 41, extends the maintenance cycle of the analytical instrument, and enables quick replacement and maintenance.

[0057] The lower space 102 is also equipped with a temperature control unit, which is used to control the internal temperature of the analyzer. The temperature control unit includes a heat dissipation structure and a heater.

[0058] The constant temperature control unit can maintain a constant temperature in all areas of the analyzer except for the high-temperature zone of the high-temperature gas detection gas pool 41 unit 4. When the temperature is too high, the heat dissipation structure dissipates heat from the chassis 1. When the temperature is too low, the heater heats the chassis 1. Through the heat dissipation structure and the heater, constant temperature control can be achieved inside the analyzer chassis 1, maintaining the various components in the analyzer in a basically constant temperature environment, avoiding the impact of excessively low temperature on the performance of the measurement unit, and ensuring the stability of the system performance.

[0059] The heat dissipation structure includes multiple cooling fans 10 mounted on the chassis 1 and circulating heat dissipation holes 11 mounted on the chassis 1.

[0060] The cooling fan 10 and the heat dissipation holes can exhaust the hot air inside the chassis 1. In addition, in this embodiment, the air duct design is also combined with the arrangement of the components inside the chassis 1 to ensure that the temperature inside the chassis 1 can be cooled down quickly when it is too high, so as to avoid the high temperature affecting the performance of the measurement unit and causing inaccurate measurement.

[0061] The heater is a heating fan 12 located in the lower space 102.

[0062] The heating fan 12 is used to heat the inside of the chassis 1. Together with the cooling fan 10 and the heat dissipation holes, it maintains a constant temperature inside the chassis 1. In this embodiment, the heating fan 12 is a PCT heating fan 12.

[0063] The ultraviolet light source 9 includes ultraviolet xenon lamps or deuterium lamps.

[0064] The signals from ultraviolet xenon lamps or deuterium lamps are stable with minimal fluctuations, which have little impact on detection and allow for more precise detection of structures.

[0065] The ultraviolet light source 9 is connected to a heat dissipation fan 13.

[0066] A heat dissipation fan 13 is provided for the ultraviolet light source 9 to prevent heat accumulation after the light source heats up, which could damage the light source, extend the service life of the light source, and also make the light source more stable.

[0067] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated ultraviolet gas analyzer characterized by, The utility model relates to a high-temperature gas detection device, including, A cabinet (1) is internally equipped with upper space (101) and lower space (102); Cabinet panel and industrial computer (2) are equipped in one side of cabinet (1), are used to handle and store the detection data of gas analyzer; The upper space (101) is provided with heat tracing pipe connecting unit (3), high-temperature gas detection gas pool unit (4), calibration and gas circuit execution unit (5) and pump unit (14);The lower space (102) is provided with mainboard control unit (6), power supply unit (7), ultraviolet spectrometer (8) and ultraviolet light source (9); Wherein, the high-temperature gas detection gas pool unit (4) includes gas pool (41), the gas pool (41) is provided with light inlet and light outlet, the ultraviolet light source (9) is connected with the light inlet, and the ultraviolet spectrometer (8) is connected with the light outlet; The calibration and gas circuit execution unit (5) is connected with gas pool (41), and is used for the calibration of analyzer; The gas pool (41) is connected with intake converging unit (44), and the intake converging unit (44) is integrally provided with the gas inlet, the whole calibration port and the exhaust port of gas pool (41); The heat tracing pipe connecting unit (3) is used for connecting the external heat tracing pipe and sampling unit.

2. The integrated ultraviolet gas analyzer of claim 1, wherein, The cabinet (1) is a standard 4U~10U size sheet metal cabinet.

3. The integrated ultraviolet gas analyzer of claim 1, wherein, The high-temperature gas detection gas pool unit (4) further includes heating unit (42), the heating unit (42) is used for heating the components of high-temperature gas detection gas pool unit (4), and the heating unit (42) includes cast aluminum heating block and mica heating sheet.

4. The integrated ultraviolet gas analyzer of claim 3, wherein, The high-temperature gas detection gas pool unit (4) is provided with a heat insulation shell.

5. The integrated ultraviolet gas analyzer of claim 1, wherein, The gas pool (41) is provided with a zirconium oxide sensor (43) outside, and the zirconium oxide sensor (43) is used for measuring the oxygen content and water content of high-temperature gas in the gas pool (41).

6. The integrated ultraviolet gas analyzer of claim 1, wherein, The intake converging unit (44) is connected with filter core unit (45), and the filter core unit (45) is used for filtering the gas entering the gas pool (41).

7. The integrated ultraviolet gas analyzer of claim 1, wherein, The lower space (102) is further provided with a constant temperature control unit for constant temperature control of the internal temperature of the analyzer, and the constant temperature control unit includes a heat dissipation structure and a heater.

8. The integrated ultraviolet gas analyzer of claim 7, wherein, The heat dissipation structure includes a plurality of heat dissipation fans (10) arranged on the cabinet (1) and a circulating heat dissipation hole (11) arranged on the cabinet (1).

9. The integrated ultraviolet gas analyzer of claim 7, wherein, The heater is a heating fan (12) arranged in the lower space (102).

10. The integrated ultraviolet gas analyzer of claim 1, wherein, The ultraviolet light source (9) is connected with a light source heat dissipation fan (13).

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