Sample gas washing tank for raw gas detection and analysis

Abstract

The utility model discloses a sample gas washing tank for raw gas detection and analysis, which comprises a tank body, a washing water inlet, a raw gas inlet, an analysis cabinet and a separation mechanism, the washing water inlet is arranged on the outer surface of the tank body, and the raw gas inlet is arranged on the outer surface of the tank body; through the arrangement of the two groups of gas-liquid separators (one is open and the other is standby), most of condensate carried in sample gas from the tank body can be separated, so that the condition that the condensate separation and drying system of the analysis cabinet is relatively large in load and is not beneficial to effective separation of the condensate is effectively avoided, the probability that the condensate carries water into the analysis cabinet is further reduced, and the quality of the analysis cabinet is improved. The operation reliability of the analysis meter is ensured, the operation cycle of the online analysis device is prolonged, and the condensate temporarily stored in the liquid accumulation tank can be automatically discharged at regular time by arranging a valve IV (an electromagnetic valve) at the bottom of the liquid accumulation tank, so that the workload of workers is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crude gas washing equipment, in particular to a sample gas washing tank for crude gas detection and analysis. Background Art

[0002] The scrubbing tank for the online oxygen analyzer at the crude gas outlet of the Lurgi furnace uses direct gas-liquid contact to scrub the sample gas. The sample gas outlet temperature is generally 40-50°C. When the scrubbing tank is in use, a large amount of condensate will be carried in the gas. After subsequent gradual condensation, most of the condensate may enter the analysis cabinet. If the condensate cannot be separated and discharged in time, it may cause the water inflow display of the analysis meter to be incorrect or even directly damage the analysis equipment.

[0003] In the existing technical solution, a group of separators and two groups of dryers are respectively provided in the analyzer cabinet to ensure the dryness of the sample gas as much as possible. However, due to the small amount of sample gas in the washing tank, it is greatly affected by system fluctuations. The imbalance of water and gas can easily cause water to appear in the sample gas at the outlet of the washing tank, thereby causing a large load on the condensate separation and drying system of the analyzer cabinet, which is not conducive to the effective separation of the condensate. The analysis data of the analysis table is abnormal, shortening the operation cycle of the online oxygen analyzer. In addition, when the sample gas is seriously water-containing, it will cause water to enter the analysis table. This phenomenon has occurred three times in total, resulting in the complete disassembly, drying and re-calibration of the analysis table. The debugging workload is large and the operation cycle of the online oxygen analyzer is shortened. Therefore, a sample gas washing tank for raw coal gas detection and analysis is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a sample gas washing tank for crude coal gas detection and analysis, which can solve the problem that the sample gas at the outlet of the washing tank is water-containing due to the small amount of sample gas in the washing tank, which is greatly affected by system fluctuations and the imbalance of water and gas, thereby causing the condensate separation and drying system of the analysis cabinet to be heavily loaded, which is not conducive to the effective separation of condensate, and is prone to abnormal analysis data of the analysis table, thereby shortening the operation cycle of the online oxygen analyzer.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a sample gas washing tank for crude gas detection and analysis, comprising a tank body and:

[0006] a washing water inlet, the washing water inlet being opened on the outer surface of the tank body;

[0007] A crude gas inlet is provided on the outer surface of the tank body and is located below one side of the washing water inlet;

[0008] An analysis cabinet, located on one side of the tank;

[0009] The separation mechanism is provided on the upper part of the tank body and is fixedly connected to the analysis cabinet for separating gas and liquid and temporarily storing liquid.

[0010] Preferably, the height difference between the washing water inlet and the crude gas inlet is 10 to 50 cm.

[0011] Preferably, the separation mechanism includes a pipe 1 arranged on the upper part of the tank body, a gas-liquid separator is provided at the output end of the pipe 1, a pipe 2 is provided on the upper part of the gas-liquid separator, the pipe 2 is fixedly connected to the analysis cabinet, a valve 1 is provided on the outer surface of the pipe 1, a valve 2 is provided on the outer surface of the pipe 2, and a collection mechanism is provided at the lower part of the gas-liquid separator.

[0012] Preferably, there are two groups of gas-liquid separators.

[0013] Preferably, the collecting mechanism includes a pipe three arranged at the lower part of the gas-liquid separator, a liquid accumulation tank is provided at the output end of the pipe three, a valve three is provided on the outer surface of the pipe three, and a valve four is provided at the lower part of the liquid accumulation tank.

[0014] Preferably, the valve four is a solenoid valve.

[0015] Preferably, the materials of pipeline 1, pipeline 2 and pipeline 3 are all stainless steel.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present application realizes the functions of gas-liquid separation and automatic discharge of temporary liquid storage by setting up a separation mechanism and a collection mechanism. By adding two sets of gas-liquid separators (one open and one standby) at the outlet of the tank body, most of the condensate carried in the sample gas coming out of the tank body can be separated, effectively avoiding the situation where the condensate separation and drying system of the analysis cabinet is overloaded, which is not conducive to the effective separation of the condensate, thereby reducing the probability of the condensate carrying water into the analysis cabinet, ensuring the reliability of the operation of the analysis table, and extending the operation cycle of the online analysis device. In addition, by setting an automatic discharge valve four (solenoid valve) at the bottom of the liquid accumulation tank, the condensate temporarily stored in the liquid accumulation tank can be automatically discharged at a regular time, thereby greatly reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 For this utility model Figure 1 The cross-sectional structural view of the tank;

[0021] Figure 3 For this utility model Figure 1 Separation mechanism structure view in ;

[0022] Figure 4 For this utility model Figure 1 The collection organization structure view in .

[0023] Description of reference numerals:

[0024] 1. Tank body; 2. Washing water inlet; 3. Crude gas inlet; 4. Analysis cabinet; 5. Separation mechanism; 51. Pipeline one; 52. Gas-liquid separator; 53. Pipeline two; 54. Valve one; 55. Valve two; 6. Collection mechanism; 61. Pipeline three; 62. Liquid storage tank; 63. Valve three; 64. Valve four. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 4 , the utility model provides a technical solution:

[0027] A sample gas washing tank for crude gas detection and analysis, comprising a tank body 1, and further comprising:

[0028] A washing water inlet 2 is provided on the outer surface of the tank body 1;

[0029] A crude gas inlet 3 is provided on the outer surface of the tank body 1 and is located below one side of the washing water inlet 2;

[0030] Analytical cabinet 4, which is located on one side of the tank body 1;

[0031] The separation mechanism 5 is provided at the upper portion of the tank body 1 and is fixedly connected to the analysis cabinet 4 for separating gas and liquid and temporarily storing the liquid.

[0032] Specifically, such as Figure 1 and Figure 2As shown, the height difference between the washing water inlet 2 and the crude gas inlet 3 is 10 to 50 cm. The washing water can flow into the tank body 1 by its own gravity and effectively contact and wash the crude gas.

[0033] Specifically, such as Figure 1 and Figure 3 As shown, the separation mechanism 5 includes a pipe 1 51 arranged on the upper part of the tank body 1, a gas-liquid separator 52 is provided at the output end of the pipe 1 51, a pipe 2 53 is provided on the upper part of the gas-liquid separator 52, the pipe 2 53 is fixedly connected to the analysis cabinet 4, a valve 1 54 is provided on the outer surface of the pipe 1 51, a valve 2 55 is provided on the outer surface of the pipe 2 53, and a collecting mechanism 6 is provided at the lower part of the gas-liquid separator 52.

[0034] Specifically, such as Figure 1 and Figure 3 As shown, there are two groups of gas-liquid separators 52. By setting up two groups of gas-liquid separators 52 (one in operation and one in standby), it can be ensured that they can be quickly switched when needed to ensure the continuity of production.

[0035] Specifically, such as Figure 1 、 Figure 3 and Figure 4 As shown, the collecting mechanism 6 includes a pipe three 61 arranged at the lower part of the gas-liquid separator 52, a liquid accumulation tank 62 is provided at the output end of the pipe three 61, a valve three 63 is provided on the outer surface of the pipe three 61, and a valve four 64 is provided at the lower part of the liquid accumulation tank 62.

[0036] Specifically, such as Figure 1 and Figure 4 As shown, valve 4 64 is a solenoid valve, which is connected to the central control DCS system through a signal line. The system automatically controls the opening and closing of the solenoid valve according to a preset time interval (currently set to 3000 seconds, that is, the valve operates once every 3000 seconds). When the solenoid valve is opened, the condensate separated and stored in the liquid storage tank 62 can be discharged at a regular interval, thereby effectively reducing the workload of manual operation.

[0037] Specifically, such as Figure 1 、 Figure 3 and Figure 4 As shown, the materials of pipeline 1 51, pipeline 2 53 and pipeline 3 61 are all made of stainless steel, which has the characteristics of strong pressure bearing capacity and good corrosion resistance.

[0038] Working principle: When in use, crude gas enters the tank body 1 through the crude gas inlet 3, and washing water enters the tank body 1 through the washing water inlet 2. The crude gas is washed by contact with the washing water. The washed crude gas enters the gas-liquid separator 52 through pipeline 1 51 for gas-liquid separation. The separated crude gas enters the analysis cabinet 4 through pipeline 2 53 for analysis. The separated liquid enters the liquid storage tank 62 through pipeline 3 61 for temporary storage. The central control DCS system can control the valve 4 64 (solenoid valve) to open at a fixed time to discharge the condensate temporarily stored in the liquid storage tank 62.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sample gas washing tank for crude gas detection and analysis, comprising a tank body (1), characterized in that: Also included are: a washing water inlet (2), wherein the washing water inlet (2) is provided on the outer surface of the tank body (1); A crude gas inlet (3), the crude gas inlet (3) being provided on the outer surface of the tank body (1), and the crude gas inlet (3) being located below one side of the washing water inlet (2); An analysis cabinet (4), the analysis cabinet (4) being located on one side of the tank body (1); A separation mechanism (5) is provided on the upper portion of the tank body (1), and the separation mechanism (5) is fixedly connected to the analysis cabinet (4) and is used for gas-liquid separation and temporary storage of liquid.

2. The gas sample washing tank for crude gas detection and analysis according to claim 1, characterized in that: The height difference between the washing water inlet (2) and the crude gas inlet (3) is 10 to 50 cm.

3. The gas sample washing tank for crude gas detection and analysis according to claim 2, characterized in that: The separation mechanism (5) includes a pipe 1 (51) arranged on the upper part of the tank body (1), a gas-liquid separator (52) is provided at the output end of the pipe 1 (51), a pipe 2 (53) is provided on the upper part of the gas-liquid separator (52), the pipe 2 (53) is fixedly connected to the analysis cabinet (4), a valve 1 (54) is provided on the outer surface of the pipe 1 (51), a valve 2 (55) is provided on the outer surface of the pipe 2 (53), and a collecting mechanism (6) is provided at the lower part of the gas-liquid separator (52).

4. The gas sample scrubbing tank for crude gas detection and analysis according to claim 3, characterized in that: The number of the gas-liquid separators (52) is two groups.

5. The gas sample scrubbing tank for crude gas detection and analysis according to claim 4, characterized in that: The collecting mechanism (6) comprises a pipe three (61) arranged at the lower part of the gas-liquid separator (52), a liquid accumulation tank (62) is provided at the output end of the pipe three (61), a valve three (63) is provided on the outer surface of the pipe three (61), and a valve four (64) is provided at the lower part of the liquid accumulation tank (62).

6. The gas sample scrubbing tank for crude gas detection and analysis according to claim 5, characterized in that: The valve four (64) is a solenoid valve.

7. The gas sample scrubbing tank for crude gas detection and analysis according to claim 6, characterized in that: The materials of the pipe 1 (51), pipe 2 (53) and pipe 3 (61) are all stainless steel.

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