Gas blower rear oxygen content analysis device

Abstract

The utility model relates to a rear oxygen content analysis device of a gas blower, which comprises a gas pipeline connected to an outlet of the gas blower, a gas sampling port is arranged on the gas pipeline, the gas sampling port is connected with a gas filtering device, the gas filtering device is connected with an oxygen content analyzer, and the gas filtering device comprises at least two filtering barrels. The filter barrels are connected in parallel, the bottoms of the filter barrels are connected with an air inlet header pipe through air inlet branch pipes, and the tops of the filter barrels are connected with an air outlet header pipe through air outlet branch pipes. The online oxygen analyzer is prevented from being blocked, an original washing and filtering device is replaced by the coal gas filtering device, washing water is not used, water resources are saved, and waste water pollution is avoided. And the filter cotton and the coke filter layer can be detached and replaced for reuse.

Description

Technical Field

[0001] The utility model relates to the field of oxygen content detection, in particular to a gas blower post-oxygen content analysis device. Background Art

[0002] Coke oven gas is flammable and explosive, so an online oxygen analyzer is required before or after the gas blower to monitor the oxygen content in the gas and prevent explosions in the electrostatic precipitator (ECP) before the gas blower. If the oxygen content exceeds 2%, the ECP will be shut down. The gas pipeline after the gas blower is under positive pressure, so the online oxygen analyzer is often installed after the gas blower.

[0003] Because coke oven gas contains a high concentration of impurities, the online oxygen analyzer frequently clogs. The original design required the installation of a scrubber and filter in front of the analyzer. However, this scrubber and filter required frequent replacement, and tar and naphthalene frequently clogged the scrubber, causing deviations in the oxygen analyzer's readings and, in turn, causing the electrostatic precipitator to shut down. Therefore, improvements were needed. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a gas blower post-oxygen content analysis device to avoid clogging of an online oxygen analyzer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gas blower post-oxygen content analysis device comprises a gas pipeline connected to the gas blower outlet, a gas sampling port being provided on the gas pipeline, the gas sampling port being connected to a gas filter device, the gas filter device being connected to an oxygen analyzer, the gas filter device comprising at least two filter barrels connected in parallel, the bottom of each filter barrel being connected to an air inlet main pipe via an air inlet branch pipe, and the top of each filter barrel being connected to an air outlet main pipe via an air outlet branch pipe.

[0007] The filter barrel includes a barrel body and a barrel cover. The barrel body is provided with an upper partition and a lower partition. The upper partition and the lower partition are both removable. Several ventilation holes are provided on the upper partition and the lower partition. A coke layer is provided on the lower partition, and a filter cotton layer is provided on the upper partition. The barrel cover is detachably connected to the barrel body, and a drainage pipe is provided at the bottom of the barrel body.

[0008] The air intake main pipe is connected to the gas sampling port.

[0009] The gas outlet main pipe is connected to the oxygen analyzer.

[0010] The air inlet branch pipe is provided with an air inlet valve, the air inlet main pipe is provided with an air inlet main valve, the air outlet branch pipe is provided with an air outlet valve, and the air outlet main pipe is provided with an air outlet main valve.

[0011] The drain pipe is provided with a drain valve.

[0012] A pressure gauge is provided on the barrel body above the drain pipe.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] The utility model avoids clogging of the online oxygen analyzer. The gas filter device replaces the original washing filter device, does not use washing water, saves water resources, and avoids wastewater pollution. The filter cotton and coke filter layer can be removed and replaced for repeated use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the utility model.

[0016] Figure 2 This is the structure diagram of the filter barrel.

[0017] Figure 3 Top view of the upper partition.

[0018] Gas pipeline 1, gas sampling port 2, oxygen analyzer 3, filter barrel 4, air inlet branch pipe 5, air inlet main pipe 6, air outlet branch pipe 7, air outlet main pipe 8, air inlet valve 9, air inlet main valve 10, air outlet valve 11, air outlet main valve 12, barrel body 41, barrel cover 42, upper partition 43, lower partition 44, air vent 45, coke layer 46, drain pipe 47, drain valve 48, pressure gauge 49, filter cotton layer 50. DETAILED DESCRIPTION

[0019] In the description of this utility model, it should be understood that the terms "first," "second," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means more than two.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] like Figure 1-Figure 3A gas blower post-oxygen content analysis device includes a gas pipeline 1 connected to the gas blower outlet, a gas sampling port 2 is provided on the gas pipeline 1, the gas sampling port 2 is connected to the gas filtering device, the gas filtering device is connected to the oxygen analyzer 3, the gas filtering device includes at least two filter barrels 4, the filter barrels 4 are connected in parallel, the bottom of each filter barrel 4 is connected to the air intake main pipe 6 through an air intake branch pipe 5, and the top of the filter barrel 4 is connected to the air outlet main pipe 8 through an air outlet branch pipe 7.

[0022] The filter barrel 4 includes a barrel body 41 and a barrel cover 42. An upper partition 43 and a lower partition 44 are provided in the barrel body 41. Both the upper partition 43 and the lower partition 44 are removable. A plurality of ventilation holes 45 are provided on the upper partition 43 and the lower partition 44. A coke layer 46 is provided on the lower partition 44. A filter cotton layer 50 is provided on the upper partition 43. The barrel cover 42 is detachably connected to the barrel body 41, and the barrel cover 42 is sealed to the barrel body 41. A drain pipe 47 is provided at the bottom of the barrel body 41.

[0023] The air intake manifold 6 is connected to the gas sampling port 2 .

[0024] The gas outlet main pipe 8 is connected to the oxygen analyzer 3 .

[0025] The air inlet branch pipe 5 is provided with an air inlet valve 9, the air inlet main pipe 6 is provided with an air inlet main valve 10, the air outlet branch pipe 7 is provided with an air outlet valve 11, and the air outlet main pipe 8 is provided with an air outlet main valve 12.

[0026] The drain pipe 47 is provided with a drain valve 48 .

[0027] A pressure gauge 49 is provided on the barrel body above the drain pipe 47 .

[0028] After the filter barrel 4 is manufactured, water is added to the interior to above the drain pipe 47, the lower partition 44 is installed, the lower partition 44 is filled with coke, and then the upper partition 43 is installed, the upper partition 43 is filled with filter cotton, and then the barrel cover 42 is closed.

[0029] 1. During the test, the gas can be filtered through one filter barrel 4 or multiple filter barrels 4 , and the ammonia produced by the gas accumulates at the bottom of the filter barrel 4 and is then discharged through the drain pipe 47 .

[0030] To make the purpose, technical solution, and technical effects of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are now described clearly and completely. However, the embodiments described below are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art without inventive effort in conjunction with the embodiments of the present invention are also within the scope of protection of the present invention.

[0031] Example

[0032] A gas blower post-oxygen content analysis device includes a gas pipeline 1 connected to the gas blower outlet, a gas sampling port 2 is provided on the gas pipeline 1, the gas sampling port 2 is connected to a gas filter device, the gas filter device is connected to an oxygen analyzer 3, the gas filter device includes two filter barrels 4, the filter barrels 4 are connected in parallel, the bottom of each filter barrel 4 is connected to an air intake main pipe 6 via an air intake branch pipe 5, and the top of the filter barrel 4 is connected to a air outlet main pipe 8 via an air outlet branch pipe 7.

[0033] The filter barrel 4 includes a barrel body 41 and a barrel cover 42. An upper partition 43 and a lower partition 44 are provided in the barrel body 41. Both the upper partition 43 and the lower partition 44 are removable. A plurality of ventilation holes 45 are provided on the upper partition 43 and the lower partition 44. A coke layer 46 is provided on the lower partition 44. A filter cotton layer 50 is provided on the upper partition 43. The barrel cover 42 is detachably connected to the barrel body 41, and the barrel cover 42 is sealed to the barrel body 41. A drain pipe 47 is provided at the bottom of the barrel body 41.

[0034] The air intake manifold 6 is connected to the gas sampling port 2 .

[0035] The gas outlet main pipe 8 is connected to the oxygen analyzer 3 .

[0036] An air intake valve 9 is provided on the air intake branch pipe 5, an air intake main valve 10 is provided on the air intake main pipe 6, an air outlet valve 11 is provided on the air outlet branch pipe 7, and an air outlet main valve 12 is provided on the air outlet main pipe 8.

[0037] The drain pipe 47 is provided with a drain valve 48. The barrel above the drain pipe 47 is provided with a pressure gauge 49.

[0038] The barrel body 41 is 1200mm high and 200mm in diameter, the lower baffle 44 is 600mm away from the barrel bottom, and the upper baffle 43 is 400mm away from the surface of the lower baffle 44. The upper baffle 43 and the lower baffle 44 are made of 3mm thick 304 stainless steel plates.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and basic spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gas blower oxygen content analysis device, characterized in that: It includes a gas pipeline connected to the gas blower outlet, a gas sampling port is provided on the gas pipeline, the gas sampling port is connected to the gas filter device, the gas filter device is connected to the oxygen analyzer, the gas filter device includes at least two filter barrels, the filter barrels are connected in parallel, the bottom of each filter barrel is connected to the gas inlet main pipe through an air inlet branch pipe, and the top of the filter barrel is connected to the gas outlet main pipe through an air outlet branch pipe.

2. The gas blower post oxygen content analysis device according to claim 1, characterized in that: The filter barrel includes a barrel body and a barrel cover. The barrel body is provided with an upper partition and a lower partition. The upper partition and the lower partition are both removable. Several ventilation holes are provided on the upper partition and the lower partition. A coke layer is provided on the lower partition, and a filter cotton layer is provided on the upper partition. The barrel cover is detachably connected to the barrel body, and a drainage pipe is provided at the bottom of the barrel body.

3. The gas blower post oxygen content analysis device according to claim 1, characterized in that: The air intake main pipe is connected to the gas sampling port.

4. The gas blower post oxygen content analysis device according to claim 1, characterized in that: The gas outlet main pipe is connected to the oxygen analyzer.

5. The gas blower post oxygen content analysis device according to claim 1, characterized in that: The air inlet branch pipe is provided with an air inlet valve, the air inlet main pipe is provided with an air inlet main valve, the air outlet branch pipe is provided with an air outlet valve, and the air outlet main pipe is provided with an air outlet main valve.

6. The gas blower post oxygen content analysis device according to claim 2, characterized in that: The drain pipe is provided with a drain valve.

7. The gas blower post oxygen content analysis device according to claim 2, characterized in that: A pressure gauge is provided on the barrel body above the drain pipe.

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