Front pretreatment device for magnetic oxygen analyzer

Abstract

The utility model discloses a front pretreatment device for a magnetic oxygen analyzer, and belongs to the technical field of gas pretreatment devices. The preposed pretreatment device for the magnetic oxygen analyzer comprises a Y-shaped sampler, the bottom of the sampler is provided with a gas inlet, the top of the sampler is provided with a gas outlet, and the side part of the sampler is provided with a nitrogen blowback port; the mounting cylinder is mounted in the air inlet, and a steel wire ball for removing carbon black is mounted in the mounting cylinder; the perforated partition plate is in threaded connection with the air inlet end of the air inlet, and the mounting cylinder is located at the air outlet end of the perforated partition plate; the primary filter is used for filtering the gas discharged by the sampler again and filtering the carbon black and water; through the arrangement of the steel wire ball and the perforated partition plate, the carbon black can be effectively removed, the treatment capacity of pretreatment is reduced, the carbon black can be more efficiently removed, water is not needed for washing, and the influence of oxygen in water on analysis data is completely eradicated.

Description

Technical Field

[0001] This utility model relates to the technical field of gas pretreatment devices, and in particular to a pretreatment device for a magnetic oxygen analyzer. Background Technology

[0002] Currently, removing carbon black from natural gas to acetylene plants is a complex and difficult task. Most existing technologies use water washing as the primary method, and the pretreatment system is generally composed of components such as a Y-type sampler, jet valve, water washing tank, gas-liquid separator, and fine filter.

[0003] The working principle of the pretreatment of the magnetic oxygen analyzer: The sample gas is sampled by the Y-type sampler of the sampling root valve, passes through the gas-liquid separator, is rinsed by the jet valve and enters the water washing tank (the water washing tank also plays a role in dehydration). After exiting the water washing tank, it passes through the fine filter and enters the analytical instrument directly.

[0004] Because carbon black is insoluble in water, rinsing the Y-type sampler at the sampling root valve with desalinated water cannot effectively remove carbon black from the sample gas. Furthermore, the desalinated water is injected through the jet valve, and the presence of air bubbles in the water may cause the magnetic oxygen analyzer to produce higher readings. In addition, if the sample gas is heavily contaminated with water, there is a risk of damaging the analyzer. Therefore, how to efficiently remove carbon black and reduce moisture in the sample gas has become an urgent problem to be solved by those skilled in the art.

[0005] Therefore, a pretreatment device for magnetic oxygen analyzers is provided to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned in the background art and to propose a pretreatment device for a magnetic oxygen analyzer.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] The pretreatment device for the magnetic oxygen analyzer includes:

[0009] The sampler is Y-shaped, with an air inlet at the bottom, an air outlet at the top, and a nitrogen backflush port on the side.

[0010] An installation cylinder is installed inside the air inlet, and the installation cylinder contains steel wool for removing carbon black.

[0011] A perforated baffle is threadedly connected to the air inlet end of the air inlet, and the mounting cylinder is located at the air outlet end of the perforated baffle.

[0012] The primary filter is used to further filter the gas discharged from the sampler, and is used to filter carbon black and water.

[0013] Preferably, a mounting ring is fixedly connected inside the sampler, and the mounting ring is provided with multiple sets of limiting holes. The sampler is provided with multiple sets of sliding grooves, and a limiting block is slidably connected inside the sliding groove. The limiting block has a ramp. By setting the ramp, the limiting block can retract into the sliding groove when it contacts the bottom of the mounting ring. A spring is connected inside the sliding groove, and one end of the limiting block is connected to the spring. By inserting the limiting block into the limiting hole, the mounting cylinder can be fixed inside the mounting ring.

[0014] Preferably, a pull rope is slidably connected inside the groove. One end of the pull rope is fixedly connected to the limiting block, and the other end of the pull rope is located outside the mounting cylinder. By pulling the pull rope, the limiting block can be pulled, causing the limiting block to retract into the groove.

[0015] Preferably, the primary filter includes a first half-tube and a second half-tube, wherein the first half-tube contains steel wool and the second half-tube contains wool felt.

[0016] Preferably, the first half-cylinder and the second half-cylinder are connected by threads, and the first half-cylinder is located below the second half-cylinder.

[0017] Preferably, an air inlet is provided on one side of the half-cylinder, a liquid outlet is provided at the bottom of the first half-cylinder, and an air outlet is provided at the top of the second half-cylinder. By injecting the gas filtered by the sampler into the air inlet, the steel wool in the first half-cylinder removes the carbon black and water in the gas. The water is discharged through the liquid outlet. The sample gas then passes through the wool felt in the fluffy second half-cylinder to further remove the carbon black, and finally it is discharged from the air outlet.

[0018] Compared with the prior art, the present invention provides a pretreatment device for a magnetic oxygen analyzer, which has the following advantages:

[0019] This invention effectively removes carbon black by using a steel wool ball and a perforated baffle, reducing the amount of pretreatment required and removing carbon black more efficiently. It also eliminates the need for water rinsing, thus preventing the influence of oxygen in the water on the analytical data. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the pretreatment device for the magnetic oxygen analyzer proposed in this utility model;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the pretreatment device for the magnetic oxygen analyzer proposed in this utility model.

[0022] Figure 3 This is a cross-sectional structural schematic diagram of the sampler in the pretreatment device for the magnetic oxygen analyzer proposed in this utility model.

[0023] Figure 4The pretreatment device for the magnetic oxygen analyzer proposed in this utility model Figure 3 A schematic diagram of the structure of part A;

[0024] Figure 5 This is a schematic diagram of the sampler in the pretreatment device for the magnetic oxygen analyzer proposed in this utility model.

[0025] In the diagram: 1. Sampler; 101. Inlet; 102. Outlet; 103. Nitrogen backflush port; 104. Perforated baffle; 105. Mounting ring; 106. Limiting hole; 2. Mounting cylinder; 201. Limiting block; 202. Spring component; 203. Pull rope; 3. Half-cylinder one; 301. Inlet; 302. Liquid outlet; 4. Half-cylinder two; 401. Outlet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example:

[0028] Reference Figure 1-5The pretreatment device for the magnetic oxygen analyzer includes: a sampler 1, which is Y-shaped, with an air inlet 101 at the bottom, an air outlet 102 at the top, and a nitrogen backflush port 103 on the side; a mounting cylinder 2, installed inside the air inlet 101, containing steel wool for removing carbon black; a perforated baffle 104, threadedly connected to the air inlet end of the air inlet 101, with the mounting cylinder 2 located at the air outlet end of the perforated baffle 104; and a primary filter for filtering the gas discharged from the sampler 1. A second filtration is performed to filter carbon black and water. A mounting ring 105 is fixedly connected inside the sampler 1. The mounting ring 105 has multiple sets of limiting holes 106. The sampler 1 has multiple sets of sliding grooves. Limiting blocks 201 are slidably connected within the sliding grooves. The limiting blocks 201 have ramps. These ramps allow the limiting blocks 201 to retract into the sliding grooves when they contact the bottom of the mounting ring 105. A spring 202 is connected within the sliding grooves. One end of the limiting block 201 is connected to the spring 202. Inserting the limiting block 201 into the limiting hole 106 can fix the mounting cylinder 2 inside the mounting ring 105; a pull rope 203 is slidably connected in the chute, one end of the pull rope 203 is fixedly connected to the limiting block 201, and the other end of the pull rope 203 is located outside the mounting cylinder 2. By pulling the pull rope 203, the limiting block 201 can be pulled, causing the limiting block 201 to retract into the chute; the primary filter includes half-cylinder 1 3 and half-cylinder 2 4. Half-cylinder 1 3 is filled with steel wool, and half-cylinder 2 4 is filled with wool felt; half-cylinder 1 3 and half-cylinder 2 4 The connection is made by threads, and half cylinder 3 is located below half cylinder 4. Half cylinder 3 has an air inlet 301 on its side and a liquid outlet 302 at its bottom. Half cylinder 4 has an air outlet 401 at its top. By injecting the gas filtered by sampler 1 into the air inlet 301, the steel wool in half cylinder 3 removes the carbon black and water in the gas. The water is discharged through the liquid outlet 302. The sample gas then passes through the wool felt in the fluffy half cylinder 4 to further remove the carbon black and finally discharges from the air outlet 401.

[0029] The sample gas enters through the inlet 101 and is initially filtered by the perforated baffle 104, where most of the carbon black is trapped. The steel wool in the mounting cylinder 2 further adsorbs the carbon black. The filtered sample gas enters the primary filter through the outlet 102. When it is necessary to clean the carbon black in the sampler 1, nitrogen is introduced through the nitrogen backflush port 103. The backflush airflow blows the trapped carbon black back into the process pipeline to avoid carbon black accumulation and blockage.

[0030] The sample gas filtered by sampler 1 enters half cylinder 3 through inlet 301. The steel wool adsorbs residual carbon black and traps moisture. The moisture is discharged through outlet 302. The sample gas rises and enters half cylinder 4. The wool felt further filters fine carbon black particles. Finally, the dry and clean sample gas is discharged through outlet 401 and enters the subsequent dehydrator and magnetic oxygen analyzer.

[0031] The sample gas enters the sampler 1 from the process pipeline through the inlet 101, and passes sequentially through the perforated baffle 104 and the steel wool in the mounting cylinder 2. More than 80% of the carbon black is retained. The sample gas after preliminary filtration enters the first-stage filter half-cylinder 3 from the outlet 102. After double filtration by the steel wool and wool felt, the carbon black and moisture are completely removed. Nitrogen is periodically introduced through the nitrogen backflush port 103. The airflow impacts the surface of the perforated baffle 104 and the steel wool, blowing the retained carbon black back into the process pipeline and reducing the carbon load on the pretreatment system. When the airflow of the analyzer is found to decrease, unscrew the threaded connection between half-cylinder 3 and half-cylinder 4, and replace the wool felt in half-cylinder 4. If it is necessary to clean the steel wool in the sampler 1, pull the pull rope 203 to remove the mounting cylinder 2, clean it, and then reinstall it.

[0032] Specifically, such as Figure 4 As shown, the installation cylinder 2 has a hollow tube inside, which is used to place the pull rope 203 to prevent the external steel wool from affecting the movement of the pull rope 203.

[0033] This invention effectively removes carbon black by using a steel wool ball and a perforated baffle 104, reducing the amount of pretreatment required and removing carbon black more efficiently. It also eliminates the need for rinsing with water, thus preventing the influence of oxygen in the water on the analytical data.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pretreatment device for a magnetic oxygen analyzer, characterized in that, include: The sampler (1) is Y-shaped, with an air inlet (101) at the bottom, an air outlet (102) at the top, and a nitrogen backflush port (103) on the side. An installation cylinder (2) is installed inside the air inlet (101), and the installation cylinder (2) is filled with steel wool for removing carbon black. A perforated partition (104) is threadedly connected to the air inlet end of the air inlet (101), and the mounting cylinder (2) is located at the air outlet end of the perforated partition (104). A primary filter is used to further filter the gas discharged from the sampler (1) and to filter carbon black and water.

2. The pretreatment device for the magnetic oxygen analyzer according to claim 1, characterized in that, The sampler (1) is fixedly connected to an installation ring (105). The installation ring (105) is provided with multiple sets of limiting holes (106). The sampler (1) is provided with multiple sets of sliding grooves. A limiting block (201) is slidably connected in the sliding groove. The limiting block (201) has a ramp. By setting the ramp, the limiting block (201) can retract into the sliding groove when it contacts the bottom of the installation ring (105). A spring (202) is connected in the sliding groove. One end of the limiting block (201) is connected to the spring (202). By inserting the limiting block (201) into the limiting hole (106), the installation cylinder (2) can be fixed in the installation ring (105).

3. The pretreatment device for the magnetic oxygen analyzer according to claim 2, characterized in that, A pull rope (203) is slidably connected inside the chute. One end of the pull rope (203) is fixedly connected to the limiting block (201), and the other end of the pull rope (203) is located outside the mounting cylinder (2). By pulling the pull rope (203), the limiting block (201) can be pulled, causing the limiting block (201) to retract into the chute.

4. The pretreatment device for the magnetic oxygen analyzer according to claim 1, characterized in that, The primary filter includes a first half-tube (3) and a second half-tube (4). The first half-tube (3) is filled with steel wool balls, and the second half-tube (4) is filled with wool felt.

5. The pretreatment device for the magnetic oxygen analyzer according to claim 4, characterized in that, The first half cylinder (3) and the second half cylinder (4) are connected by threads, and the first half cylinder (3) is located below the second half cylinder (4).

6. The pretreatment device for a magnetic oxygen analyzer according to claim 5, characterized in that, The first half-cylinder (3) is provided with an air inlet (301) on its side, and a liquid outlet (302) is provided at the bottom of the first half-cylinder (3). The second half-cylinder (4) is provided with an air outlet (401) at its top. By injecting the gas filtered by the sampler (1) into the air inlet (301), the steel wool in the first half-cylinder (3) removes the carbon black and water in the gas. The water is discharged through the liquid outlet (302). The sample gas is then further removed by passing through the wool felt in the fluffy second half-cylinder (4) to remove the carbon black, and finally discharged from the air outlet (401).

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