Gas phase sampler of DMO gas stripping tower

Abstract

The utility model relates to the technical field of gas stripping towers, in particular to a DMO gas stripping tower gas phase sampler, which comprises a tower body, a gas phase outlet pipe arranged at the top of the tower body, a sampling pipe arranged on the outer side of the gas phase outlet pipe, a connecting component arranged on the outer side of the sampling pipe, a sampling pump arranged on the outer side of the connecting component and used for sampling gas, and a gas outlet pipe arranged on the outer side of the sampling pump. The outer side of the sampling pump is provided with a detection assembly for detecting gas and a one-way valve which is arranged on the outer side of the detection assembly and is used for preventing the gas from flowing back, and the outer side of the connecting assembly is provided with a purge gas header pipe; when the gas in the tower body is detected and processed, the first control valve and the second control valve are opened, the sampling pump pumps the gas in the tower body into the gas collection cylinder through the sampling pipe, and the gas concentration detector is used for detecting the concentration of nitrogen oxide in the gas, so that the gas stripping effect of the tower body is judged; and the CO gas stripping amount is adjusted according to the gas stripping condition, and the detected gas is discharged to a nearby purge gas main pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of stripping towers, in particular to a gas-phase sampler for a DMO stripping tower. Background Technique

[0002] The DMO stripping tower is a method for treating sewage, which degrades organic pollutants by utilizing microbial metabolism. This method usually involves inoculating microorganisms into the stripping tower and using a gas delivery system to deliver oxygen to the inoculated microorganisms. At the same time, the organic wastewater is sent into the stripping tower for degradation, and finally harmless carbon dioxide and water vapor are emitted.

[0003] The function of the DMO stripping tower is to use CO as the stripping gas to strip the nitrogen oxides in the feed solution and maintain the total nitrogen balance of the DMO synthesis system. However, at present, since there is no sampler in the gas-phase discharge pipeline of the DMO stripping tower, it is impossible to judge the stripping effect of the tower, so the stripping gas volume of CO cannot be adjusted according to the situation, which affects the stripping effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gas-phase sampler for a DMO stripping tower to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A gas-phase sampler for a DMO stripping tower, including a tower body, a gas-phase outlet pipe is arranged at the top of the tower body, and further includes:

[0006] A sampling pipe arranged outside the gas-phase outlet pipe, a connection component is arranged outside the sampling pipe, a sampling pump for sampling gas is arranged outside the connection component, and a detection component for detecting and processing the gas is arranged outside the sampling pump;

[0007] A one-way valve arranged outside the detection component to prevent gas backflow, a relief gas main pipe is arranged outside the connection component, the one-way valve is connected to the relief gas main pipe through a pipeline, and an installation component is arranged outside the detection component.

[0008] Preferably, the connection component includes a first control valve arranged outside the sampling pipe, a three-way pipe is arranged outside the first control valve, and a second control valve is communicated with the top of the three-way pipe.

[0009] Preferably, one side of the sampling pump is communicated with the second control valve, and the other side is communicated with the detection component.

[0010] Preferably, the detection component includes a gas collection cylinder arranged outside the sampling pump, a gas concentration detector is arranged at the top of the gas collection cylinder, and a monitoring port is arranged outside the gas concentration detector.

[0011] Preferably, one side of the check valve communicates with the air collecting cylinder, and the other end communicates with the blowdown gas main pipe through a pipeline.

[0012] Preferably, the mounting assembly includes a fixing frame arranged on the outer side of the air collecting cylinder, and a mounting sleeve is arranged on the outer side of the fixing frame.

[0013] Preferably, a sleeve rod is arranged on the outer side of the fixing frame, and a connecting rod is arranged inside the sleeve rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] When detecting and processing the gas in the tower body of the present utility model, the first control valve and the second control valve are opened. The sampling pump extracts the gas in the tower body into the air collecting cylinder through the sampling pipe. The gas concentration detector is used to detect the concentration of nitrogen oxides in the gas, so as to judge the stripping effect of the tower body, and adjust the CO stripping gas volume according to the stripping situation. The detected gas is discharged onto the nearby blowdown gas main pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the structural schematic diagram of the detection assembly of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the connection assembly and the sampling pipe of the present utility model;

[0019] Figure 4 is the structural schematic diagram of the detection assembly of the present utility model.

[0020] In the figure: 1, tower body; 2, gas phase outlet pipe; 3, sampling pipe; 4, connection assembly; 401, first control valve; 402, tee; 403, second control valve; 5, sampling pump; 6, detection assembly; 601, air collecting cylinder; 602, gas concentration detector; 603, monitoring port; 7, check valve; 8, blowdown gas main pipe; 9, mounting assembly; 901, fixing frame; 902, mounting sleeve; 10, sleeve rod; 11, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the attached drawings and preferred embodiments, details the specific embodiments, structures, features and their effects according to the present utility model as follows.

[0022] Please refer to Figures 1-4As shown in the figure, a DMO stripping tower gas-phase sampler includes a tower body 1. A gas-phase outlet pipe 2 is provided at the top of the tower body 1. It further includes: a sampling pipe 3 arranged outside the gas-phase outlet pipe 2. The sampling pipe 3 is connected to the gas-phase outlet pipe 2. A connection assembly 4 is arranged outside the sampling pipe 3. A sampling pump 5 for sampling gas is arranged outside the connection assembly 4. The sampling pump 5 is connected to the sampling pipe 3 through the connection assembly 4. A detection assembly 6 for detecting and processing the gas is arranged outside the sampling pump 5. The detection assembly 6 is used to detect the concentration of nitrogen oxides, so as to judge the stripping effect; a one-way valve 7 arranged outside the detection assembly 6 to prevent gas backflow. The one-way valve 7 is used to prevent gas from flowing back to the tower body 1. A blowdown gas main pipe 8 is arranged outside the connection assembly 4. The blowdown gas main pipe 8 is used to discharge waste gas; the one-way valve 7 is connected to the blowdown gas main pipe 8 through a pipeline. An installation assembly 9 is arranged outside the detection assembly 6. The installation assembly 9 is used to install the detection assembly 6 at a designated position.

[0023] The connection assembly 4 includes a first control valve 401 arranged outside the sampling pipe 3. The first control valve 401 is connected to the sampling pipe 3. A three-way pipe 402 is arranged outside the first control valve 401. Both ends of the three-way pipe 402 are respectively connected to the first control valve 401 and the three-way pipe 402. A second control valve 403 is connected to the top of the three-way pipe 402.

[0024] One side of the sampling pump 5 is connected to the second control valve 403, and the other side is connected to the detection assembly 6. The sampling pump 5 is used to divert the gas into the detection assembly 6 for detection.

[0025] The detection assembly 6 includes a gas collection cylinder 601 arranged outside the sampling pump 5. The sampling pump 5 diverts the gas into the gas collection cylinder 601. A gas concentration detector 602 is arranged at the top of the gas collection cylinder 601. The gas concentration detector 602 is used to detect the concentration of nitrogen oxides in the gas. A monitoring port 603 is arranged outside the gas concentration detector 602. The monitoring port 603 made of transparent material is convenient for observing the gas condition inside the gas collection cylinder 601.

[0026] One side of the one-way valve 7 is connected to the gas collection cylinder 601, and the other end is connected to the blowdown gas main pipe 8 through a pipeline. The one-way valve 7 discharges the detected gas into the blowdown gas main pipe 8 for discharge.

[0027] The installation assembly 9 includes a fixing frame 901 arranged outside the gas collection cylinder 601. The fixing frame 901 is fixedly installed on the gas collection cylinder 601. An installation sleeve 902 is arranged outside the fixing frame 901. The installation sleeve 902 is fixedly installed on the gas collection cylinder 601. The gas collection cylinder 601 can be installed on an external pipeline by using the installation sleeve 902.

[0028] A sleeve rod 10 is arranged on the outer side of the fixing frame 901. A connecting rod 11 is arranged inside the sleeve rod 10. The sleeve rod 10 is welded to the fixing frame 901. The connecting rod 11 is inserted into the sleeve rod 10 and fixed by bolts. After adjusting the appropriate position of the connecting rod 11 in the sleeve rod 10, the connecting rod 11 is fixed by bolts, and then the gas collecting cylinder 601 can be fixed to the wall through the connecting rod 11.

[0029] Working principle: When detecting and processing the gas in the tower body 1, the first control valve 401 and the second control valve 403 are opened. The sampling pump 5 extracts the gas in the tower body 1 into the gas collecting cylinder 601 through the sampling pipe 3. The gas concentration detector 602 is used to detect the concentration of nitrogen oxides in the gas, so as to judge the stripping effect of the tower body 1 and adjust the CO stripping gas volume according to the stripping situation. The detected gas is discharged to the nearby flare gas main pipe 8.

[0030] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A DMO stripping tower gas-phase sampler, comprising a tower body (1), wherein a gas-phase outlet pipe (2) is arranged at the top of the tower body (1), and is characterized in that, Further comprising: A sampling pipe (3) disposed outside the gas-phase outlet pipe (2), a connection assembly (4) is disposed outside the sampling pipe (3), a sampling pump (5) for sampling gas is disposed outside the connection assembly (4), and a detection assembly (6) for detecting and processing the gas is disposed outside the sampling pump (5); A one-way valve (7) disposed outside the detection assembly (6) to prevent gas backflow, a blowdown gas main pipe (8) is disposed outside the connection assembly (4), the one-way valve (7) is connected to the blowdown gas main pipe (8) through a pipeline, and a mounting assembly (9) is disposed outside the detection assembly (6).

2. The gas-phase sampler of a DMO stripping column according to claim 1, characterized in that: The connection assembly (4) includes a first control valve (401) disposed outside the sampling pipe (3), a three-way pipe (402) is disposed outside the first control valve (401), and a second control valve (403) is connected to the top of the three-way pipe (402).

3. The gas-phase sampler of a DMO stripping tower according to claim 2, characterized in that: One side of the sampling pump (5) is connected to the second control valve (403), and the other side is connected to the detection assembly (6).

4. A DMO stripping tower gas phase sampler according to claim 1, characterized in that: The detection assembly (6) includes a gas collection cylinder (601) disposed outside the sampling pump (5), a gas concentration detector (602) is disposed on the top of the gas collection cylinder (601), and a monitoring port (603) is disposed outside the gas concentration detector (602).

5. The DMO stripping tower gas phase sampler according to claim 4, wherein: One side of the one-way valve (7) is connected to the gas collection cylinder (601), and the other end is connected to the blowdown gas main pipe (8) through a pipeline.

6. The gas-phase sampler of a DMO stripping tower according to claim 4, wherein: The mounting assembly (9) includes a fixing bracket (901) disposed outside the gas collection cylinder (601), and a mounting sleeve (902) is disposed outside the fixing bracket (901).

7. The gas-phase sampler of a DMO stripping column according to claim 6, characterized in that: A sleeve rod (10) is disposed outside the fixing bracket (901), and a connecting rod (11) is disposed inside the sleeve rod (10).

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