High-temperature high-pressure gas rapid on-line detection device and method

Abstract

The application relates to a high-temperature and high-pressure gas rapid online detection device and method, which comprises an air inlet pressure relief pipeline, a circulating condenser, a detection pool and a heat dissipation pool. The air inlet pressure relief pipeline comprises an air inlet pipeline, a pressure relief pipeline group and a condensing pipeline which are sequentially connected in series. The pressure relief pipeline group comprises a first pressure relief pipeline and a second pressure relief pipeline which are connected in parallel with each other, and the first pressure relief pipeline is a serpentine pipe. The circulating condenser is wrapped outside the condensing pipeline, a circulating pump is connected in series on a condensate circulating pipeline of the circulating condenser, and the circulating pump takes the airflow in the second pressure relief pipeline as a power source. A multi-parameter detection sensor is installed in the detection pool and is connected with the condensing pipeline through a main pipeline. The main pipeline reaches the detection pool after reciprocating and spiraling in the heat dissipation pool, and a spraying mechanism and / or a heat dissipation fan for dissipating heat of the main pipeline are arranged in the heat dissipation pool. The application overcomes the defects of high cost, long cycle, complex operation and incapability of real-time detection of the traditional detection device, and can realize online rapid detection of high-temperature and high-pressure gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water quality online detection, in particular to a high-temperature and high-pressure gas rapid online detection device and method. BACKGROUND

[0002] High-temperature and high-pressure odor gas and industrial waste gas generated in industrial production process have complex components, and sometimes contain toxic substances. If they are directly discharged into the atmosphere, they will cause serious pollution to the environment. High-temperature and high-pressure industrial waste gas detection plays an important role in air protection, pollution prevention and control, and industrial waste gas recycling. At present, the traditional detection methods mainly include manual monitoring and automatic monitoring. The manual monitoring method is complex and long in operation, and cannot complete real-time and continuous detection of air. In addition, due to the possible danger of the detection environment, it may cause damage to the health of the workers. The automatic monitoring can overcome the shortcomings of manual monitoring and realize continuous and real-time detection. However, due to the scattered distribution of detection sites in China, the data of automatic monitoring can only reflect the general air quality of the monitoring point, and there is a certain error with the actual air quality. Moreover, the cost of professional detection equipment is very high, which is not suitable for industrial detection. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the defects of the prior art and provide a high-temperature and high-pressure gas rapid online detection device, which can overcome the defects of high cost, long cycle, complex operation, inability to perform real-time detection, and high dependence on operators of the traditional detection device, and can realize online rapid detection of high-temperature and high-pressure gas.

[0004] In order to solve the above technical problems, the technical scheme of the present application is as follows: a high-temperature and high-pressure gas rapid online detection device, comprising:

[0005] An air inlet pressure relief pipeline, comprising an air inlet pipeline, a pressure relief pipeline group and a condensation pipeline connected in series, wherein the pressure relief pipeline group comprises a first pressure relief pipeline and a second pressure relief pipeline connected in parallel with each other, and the first pressure relief pipeline is a serpentine pipe;

[0006] A circulating condenser wrapped outside the condensation pipeline, wherein a circulating pump is connected in series on a circulating pipeline of condensate of the circulating condenser, and the circulating pump takes the airflow in the second pressure relief pipeline as a power source;

[0007] A detection pool, wherein a multi-parameter detection sensor is installed in the detection pool, and the detection pool is connected with the condensation pipeline through a main pipeline;

[0008] A heat dissipation pool, wherein the main pipeline reaches the detection pool after reciprocating and spiraling in the heat dissipation pool, and a spraying mechanism and / or a heat dissipation fan for heat dissipation of the main pipeline are arranged in the heat dissipation pool.

[0009] Further, in order to conveniently adjust the flow, the air inlet pipe is communicated with the first pressure relief pipe through an electric valve, the inlet of the second pressure relief pipe is communicated with the inlet section of the first pressure relief pipe, the outlet of the second pressure relief pipe is communicated with the outlet section of the first pressure relief pipe, and the outlet of the first pressure relief pipe is provided with a pressure relief valve.

[0010] Further, in order to improve the pressure relief effect, the inner diameter of the first pressure relief pipe is smaller than that of the air inlet pipe, and the inner diameter of the condensation pipe is smaller than that of the first pressure relief pipe.

[0011] Further, a specific structure of a circulating condenser with good condensation effect is provided, which comprises two opposite semicircular support shells and a condensation pipe installed on the inner wall of the semicircular support shell, and the condensation pipe is in a meandering and coiled shape.

[0012] Further, in order to better converge the condensed water, the inner wall of the condensation pipe is provided with a plurality of drainage grooves.

[0013] Further, in order to detect the high-temperature liquid, the high-temperature and high-pressure gas rapid online detection device further comprises a water inlet pipe, which is communicated with the part of the main pipe located before the heat dissipation pool.

[0014] Further, in order to conveniently switch the detection object, a first electric valve and a first booster pump are connected in series between the condensation pipe and the main pipe, and a second electric valve and a second booster pump are connected in series on the water inlet pipe.

[0015] Further, the end of the condensation pipe is provided with a pressure sensor.

[0016] The application further provides a high-temperature and high-pressure gas rapid online detection method, which comprises the following steps:

[0017] S1, after the high-temperature and high-pressure gas source enters the air inlet pipe, the gas is sequentially subjected to pressure relief treatment in the pressure relief pipe group and condensation treatment in the condensation pipe;

[0018] S2, when the pressure value at the end of the condensation pipe is lower than a set value, the condensed liquid flows through the main pipe and the heat dissipation pool, and the spray mechanism and / or the heat dissipation fan perform heat dissipation operation on the part of the main pipe located in the heat dissipation pool;

[0019] S3, when the temperature of the liquid at the end of the part of the main pipe located in the heat dissipation pool is reduced to a preset value, the liquid flows into the detection pool through the main pipe, and the multi-parameter detection sensor measures the parameters in the liquid.

[0020] By adopting the technical scheme, the high-temperature and high-pressure gas is condensed into liquid, and the integrated sensor is used to simultaneously detect multiple parameters of the liquid to be detected, so that the problems of high detection cost and incapability of real-time online detection of the existing device are solved, and the detection efficiency in industrial production is improved and the detection difficulty is reduced by the water quality detection method of gas condensation into liquid. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Fig. 1 is a structural schematic diagram of a high-temperature and high-pressure gas rapid online detection device of the present application;

[0022] Figure 2 Fig. 4 is an exploded view of a circulating condenser of the present application;

[0023] Figure 3 Fig. 5 is a structural schematic diagram of a semicircular support shell and a condensing pipe of the circulating condenser of the present application;

[0024] Figure 4 Fig. 6 is a structural schematic diagram of a heat dissipation pool of the present application;

[0025] Figure 5 Fig. 7 is a flow chart of a high-temperature and high-pressure gas rapid online detection method of the present application;

[0026] In the figure, 11 is an air inlet pipeline, 12 is a condensing pipeline, 13 is a first pressure relief pipeline, 14 is a second pressure relief pipeline, 15 is an electric valve, 16 is a pressure relief valve, 17 is a first electric valve, 18 is a first booster pump, 2 is a circulating condenser, 21 is a semicircular support shell, 22 is a condensing pipe, 3 is a circulating pump, 4 is a detection pool, 41 is a multi-parameter detection sensor, 5 is a main pipeline, 51 is a temperature sensor, 6 is a heat dissipation pool, 61 is a spraying mechanism, 611 is a water tank, 612 is a 62, a heat dissipation fan, 621 is an upper rotating shaft, 622 is a crossbeam, 623 is a fan body, 7 is a water inlet pipeline, 71 is a second electric valve, 72 is a second booster pump, 8 is a machine case, 81 is a partition plate, 91 is an air switch, 92 is a PLC host, 93 is a switching power supply, 94 is a serial port server, and 95 is a DTU network module. DETAILED DESCRIPTION

[0027] In order to make the content of the present application more easily understood, the present application will be further described in detail below according to specific embodiments and in combination with the accompanying drawings.

[0028] Embodiment One

[0029] As shown in Figs. Figure 1 , 2 , 3, 4, a high-temperature and high-pressure gas rapid online detection device comprises:

[0030] The air inlet pressure relief pipeline comprises an air inlet pipeline 11, a pressure relief pipeline group and a condensation pipeline 12 connected in series, the pressure relief pipeline group comprises a first pressure relief pipeline 13 and a second pressure relief pipeline 14 connected in parallel, and the first pressure relief pipeline 13 is a serpentine pipeline;

[0031] The circulating condenser 2 is wrapped outside the condensation pipeline 12, and a circulating pump 3 is connected in series on a circulating pipeline of the circulating condenser 2, and the circulating pump 3 takes the airflow in the second pressure relief pipeline 14 as a power source;

[0032] The detection pool 4 is provided with a multi-parameter detection sensor 41 installed therein, and the detection pool 4 is connected to the condensation pipeline 12 through a main pipeline 5;

[0033] The heat dissipation pool 6 is provided with a spraying mechanism 61 and / or a heat dissipation fan 62 for dissipating heat of the main pipeline 5.

[0034] The multi-parameter detection sensor 41 is divided into a plurality of small detection zones, and TDS, chemical oxygen demand (COD) concentration, ammonia nitrogen and PH parameter values are detected respectively, each small detection zone is detected according to the national standard detection method, and corresponding sensors are placed.

[0035] Specifically, after the high-temperature and high-pressure gas enters the air inlet pipeline 11, part of the gas enters the first pressure relief pipeline 13 to be relieved, and the other part of the gas enters the second pressure relief pipeline to drive the circulating pump 3 to rotate, and to do work to relieve pressure, so that the circulating condenser 2 works in a circulating manner, and the pressure of the gas is reduced. After the gas is gathered to the condensation pipeline 12, the circulating condenser 2 condenses the gas again, so that the gas becomes liquid. When the pressure at the end of the condensation pipeline is less than the preset pressure, the liquid enters the heat dissipation pool 6 to be cooled, and when the temperature is reduced to the preset temperature, the liquid is sent to the detection pool 4, and the TDS, chemical oxygen demand (COD) concentration, ammonia nitrogen and PH in the water are detected simultaneously by the multi-parameter detection sensor 41. Considering that the gas composition is complex, the gas molecules are active, and the state is unstable, and it is easy to be affected by the environment, it is difficult to accurately detect, the traditional method is considered, the production process characteristics and the water quality detection method are combined, and the high-temperature and high-pressure gas is converted into liquid for detection. The high-temperature and high-pressure gas rapid online detection device in the embodiment can realize rapid online detection of high-temperature and high-pressure gas, is convenient and time-saving, and can improve the detection efficiency and reduce the detection difficulty in industrial production. The detection pool 4 is provided with a water outlet below.

[0036] In one embodiment, the detection tank 4 is configured with an automatic cleaning device for cleaning the multi-parameter detection sensor 41, which comprises a conveying pipe and a nozzle installed on the pipe, and can effectively flush and clean the surface of the multi-parameter detection sensor 41 to prevent microorganisms from adhering to the surface, so that the detection result of the multi-parameter detection sensor 41 is more accurate and the maintenance cost is reduced. The automatic cleaning device cleans the multi-parameter detection sensor 41 at a preset time interval.

[0037] As shown in Figure 1 , the air inlet pipe 11 is connected to the first pressure relief pipe 13 through the electric valve 15, the inlet of the second pressure relief pipe 14 is connected to the inlet section of the first pressure relief pipe 13, the outlet is connected to the outlet section of the first pressure relief pipe 13, and the outlet of the first pressure relief pipe 13 is provided with a pressure relief valve 16. The electric valve 15 and the pressure relief valve 16 can be easily adjusted to ensure controllable pressure.

[0038] In this embodiment, the part of the main pipe 5 extending out of the heat dissipation tank 6 is also provided with an electric valve.

[0039] As shown in Figure 2 , 3 , the structure of the circulating condenser 2 can be, but is not limited to, including two opposite semicircular support shells 21 and condensing pipes 22 installed on the inner wall of the semicircular support shells 21, and the condensing pipes 22 are in a meandering and coiled shape. In order to better converge the condensate, the inner wall of the condensing pipe 12 is provided with a drainage groove.

[0040] In one embodiment, in order to better monitor the cooling effect and facilitate the control of the timing of the next operation, the part of the main pipe 5 extending out of the heat dissipation tank 6 is provided with a temperature sensor 51.

[0041] In one embodiment, in order to better monitor the condensation effect and facilitate the control of the timing of the next operation, the end of the condensing pipe 12 is provided with a pressure sensor.

[0042] In one embodiment, as shown in Figure 3As shown, the cooling fan 62 includes a liftable upper rotating shaft 621, a crossbeam 622, and two fan bodies 623. The crossbeam 622 is installed at the lower end of the upper rotating shaft 621, and the two fan bodies 623 are symmetrically installed at the two ends of the crossbeam 622. The spraying mechanism 61 includes a water tank 611 and a condensation nozzle 612. The water tank 611 is connected to the condensation nozzle 612 through a liftable lower rotating shaft. The upper surface of the water tank 611 is provided with multiple small holes. The liquid sprayed by the condensation nozzle 612 flows back to the water tank 611 for recycling. The main pipe 5 spirals upwards or downwards within the heat sink 6. Driven by a drive mechanism, the upper rotating shaft 621 moves the crossbeam 622 and the two fan bodies 623 up and down and rotates within the cavity formed by the spiraling main pipe 5. Driven by a power mechanism, the lower rotating shaft moves the condenser nozzle 612 up and down and rotates around the cavity formed by the spiraling main pipe 5, thus providing comprehensive heat dissipation for the main pipe 5 within the heat sink 6, ensuring uniform heat dissipation and good cooling effect. The lower rotating shaft can be configured in an L-shape. During operation, the rotational speed of the fan body 623, as well as the lifting and rotating speeds of the upper and lower rotating shafts 621 and 621, can be set as needed.

[0043] Example 2

[0044] like Figure 1 As shown, based on Embodiment 1, the inner diameter of the first pressure relief pipe 13 in this embodiment is smaller than that of the air inlet pipe 11, and the inner diameter of the condensation pipe 12 is smaller than that of the first pressure relief pipe 13. During the process of high-pressure, high-temperature gas flowing from the large-diameter pipe to the small-diameter pipe, the obstruction effect will reduce the pressure.

[0045] In order to allow the second pressure relief pipe 14 to relieve pressure better, the inner diameter of the portion of the second pressure relief pipe 14 located on the air inlet side of the circulating pump 3 is larger than the inner diameter of the portion of the second pressure relief pipe 14 located on the air outlet side of the circulating pump 3.

[0046] Example 3

[0047] like Figure 1 As shown, based on Embodiment 1 or Embodiment 2, the high-temperature and high-pressure gas rapid online detection device in this embodiment further includes a water inlet pipe 7, which connects to the section of the main pipe 5 located before the heat dissipation pool 6. This configuration also allows for direct online rapid detection of high-temperature liquids, offering strong versatility.

[0048] like Figure 1 As shown, a first electric valve 17 and a first booster pump 18 are connected in series between the condensate pipe 12 and the main pipe 5; a second electric valve 71 and a second booster pump 72 are connected in series on the water inlet pipe 7.

[0049] Example 4

[0050] likeFigure 1 As shown, based on Embodiment 1, Embodiment 2, or Embodiment 3, the high-temperature and high-pressure gas rapid online detection device in this embodiment further includes a main control unit. The heat dissipation tank 6, the detection tank 4, and the main control unit are integrated in the chassis 8. The chassis 8 has a rectangular shell made of plastic, injection molded, and made of corrosion-resistant material to prevent corrosion from prolonged exposure to a humid environment. The chassis 8 is divided into multiple spaces by partitions 81. The main control unit is used to control the operation of the entire high-temperature and high-pressure gas rapid online detection device. The main control unit contains related circuits, an air switch 91, a PLC host 92, a switching power supply 93, a serial server 94, a DTU network module 95, and other modules. The air switch 91 is placed on the far left. In case of system circuit overload or short circuit, the air switch automatically disconnects to protect the equipment from burnout. When the equipment is not in use, the switch can be turned off. The PLC host 92 is placed to the right of the air switch 91. The written PLC program is implanted into the PLC host 92, and a network cable is connected to the PLC host 92. A switching power supply 93 is placed to the right of the PLC host 92. When the power cord is plugged in and the air switch 91 is turned on to power the device, the switching power supply 93 converts 220V AC power into DC power for the device. A DUT network module 95 is placed on the partition 81. One end is connected to the PLC host 92 via a serial cable, and the other end is connected to the serial server and power cord. This enables edge data acquisition, cloud data acquisition, and cloud data relay functions. Furthermore, the DUT network module 95 provides an integrated hardware and software system solution, allowing the device to be monitored at any time and enabling remote configuration, remote upgrades, and automatic positioning.

[0051] Example 5

[0052] like Figure 5 As shown, a rapid online detection method for high-temperature and high-pressure gases, based on the rapid online detection device for high-temperature and high-pressure gases described in Embodiment 1 or Embodiment 2, includes the following steps:

[0053] S1, after the high-temperature and high-pressure gas source enters the intake pipe 11, it undergoes pressure relief treatment in the pressure relief pipe group and condensation treatment in the condensation pipe 12 in sequence.

[0054] S2, when the pressure at the end of the condensation pipe 12 is lower than the set value, the condensed liquid flows through the main pipe 5 through the heat dissipation pool 6, and the spray mechanism 61 and / or the cooling fan 62 perform heat dissipation operation on the part of the main pipe 5 located in the heat dissipation pool 6.

[0055] S3, when the liquid temperature at the end of the section of the main pipe 5 located in the heat dissipation pool 6 drops to a preset value, the liquid flows into the detection pool 4 through the main pipe 5, and the multi-parameter detection sensor 41 measures various parameters in the liquid.

[0056] Example 6

[0057] likeFigure 5 As shown in the figure, a high-temperature and high-pressure gas rapid online detection method is based on the high-temperature and high-pressure gas rapid online detection device in Embodiment Three, and the method comprises the following steps:

[0058] SA, judging the state of the sample to be detected, if the sample to be detected is a high-temperature and high-pressure gas, operation one is performed, if the sample to be detected is a high-temperature liquid, operation two is performed; wherein,

[0059] Operation one: after the high-temperature and high-pressure gas source enters the gas inlet pipeline 11, it is sequentially subjected to pressure relief treatment in the pressure relief pipeline group and condensation treatment in the condensation pipeline 12; when the pressure value at the end of the condensation pipeline 12 is lower than the set value, the condensed liquid flows through the heat sink 6 via the main pipeline 5;

[0060] Operation two: the high-temperature liquid enters the water inlet pipeline 7, and then flows through the heat sink 6 via the main pipeline 5;

[0061] SB, the spraying mechanism 61 and / or the heat dissipation fan 62 perform heat dissipation operation on the part of the main pipeline 5 located in the heat sink 6;

[0062] SC, when the temperature of the liquid in the end of the part of the main pipeline 5 located in the heat sink 6 drops to the preset value, the liquid flows into the detection pool 4 via the main pipeline 5, and the multi-parameter detection sensor 41 measures each parameter in the liquid.

[0063] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. A high-temperature and high-pressure gas rapid online detection device, characterized in that, Comprising: an inlet gas pressure relief pipeline, comprising an inlet pipeline (11), a pressure relief pipeline group and a condensation pipeline (12) connected in series, the pressure relief pipeline group comprising a first pressure relief pipeline (13) and a second pressure relief pipeline (14) connected in parallel with each other, the first pressure relief pipeline (13) being a serpentine pipe; a circulating condenser (2) wrapped outside the condensation pipeline (12), a circulating pump (3) connected in series on the condensate circulating pipeline of the circulating condenser (2), the circulating pump (3) taking the gas flow in the second pressure relief pipeline (14) as a power source; a detection pool (4) with a multi-parameter detection sensor (41) installed therein, which is connected to the condensation pipeline (12) through a main pipeline (5); a heat dissipation pool (6), the main pipeline (5) reaches the detection pool (4) after reciprocating and spiraling in the heat dissipation pool (6), and the heat dissipation pool (6) is provided with a spraying mechanism (61) and / or a heat dissipation fan (62) for dissipating heat of the main pipeline (5); wherein the inner diameter of the first pressure relief pipeline (13) is smaller than that of the inlet pipeline (11), and the inner diameter of the condensation pipeline (12) is smaller than that of the first pressure relief pipeline (13).

2. The high-temperature and high-pressure gas rapid online detection device according to claim 1, characterized in that, the inlet pipeline (11) is connected to the first pressure relief pipeline (13) through an electric valve (15), the inlet of the second pressure relief pipeline (14) is connected to the inlet section of the first pressure relief pipeline (13), the outlet is connected to the outlet section of the first pressure relief pipeline (13), and the outlet of the first pressure relief pipeline (13) is provided with a pressure relief valve (16).

3. The high-temperature and high-pressure gas rapid online detection device according to claim 1, characterized in that, the circulating condenser (2) comprises two opposing semicircular support shells (21) and a condensation pipe (22) installed on the inner wall of the semicircular support shell (21), and the condensation pipe (22) is in a meandering and spiraling shape.

4. The high-temperature and high-pressure gas rapid online detection device according to claim 1, characterized in that, the inner wall of the condensation pipeline (12) is provided with a drainage groove.

5. The high-temperature and high-pressure gas rapid online detection device according to claim 1, characterized in that, further comprising a water inlet pipeline (7) connected to the part of the main pipeline (5) before the heat dissipation pool (6).

6. The high-temperature and high-pressure gas rapid online detection device according to claim 5, characterized in that, a first electric valve (17) and a first booster pump (18) are connected in series between the condensation pipeline (12) and the main pipeline (5); and a second electric valve (71) and a second booster pump (72) are connected in series on the water inlet pipeline (7).

7. The high-temperature and high-pressure gas rapid online detection device according to claim 1, characterized in that, a pressure sensor is arranged at the end of the condensation pipeline (12).

8. A high-temperature and high-pressure gas rapid online detection method, characterized in that, based on the high-temperature and high-pressure gas rapid detection device according to any one of claims 1-7, the method comprises: S1, high temperature and high pressure gas source into the air pipe (11) after, in turn in the pressure relief pipeline group pressure relief treatment, in the condenser pipe (12) condensation treatment; S2, when the condenser pipe (12) end of the pressure value is lower than the set value, the condensed liquid through the main pipe (5) flow through the heat sink pool (6), spray mechanism (61) and / or heat fan (62) to the main pipe (5) in the heat sink pool (6) part of the heat dissipation operation; S3, when the main pipe (5) in the heat sink pool (6) part of the end of the liquid temperature to the preset value, the liquid through the main pipe (5) into the detection pool (4), multi parameter detection sensor (41) measures the parameters in the liquid.

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