Tail gas absorption device

Abstract

A tail gas absorption device, including absorption bucket, absorption bucket is used for containing substance for absorbing tail gas, the top of absorption bucket is detachable with top cover, top cover is through type setting has tail gas connecting pipe, tail gas connecting pipe is provided with needle valve, absorption bucket is placed on walking mechanism, the beneficial effects of the utility model are: (1) prevent tail gas from escaping, reduce environmental pollution and the health damage to the operator; (2) absorption bucket is placed on walking mechanism, it is convenient to move between multiple tail gas sampling points, and single person can promote device movement, improve tail gas absorption efficiency; (3) compared with traditional manual replacement mode, can reduce absorption liquid waste, at the same time avoid the absorption efficiency decline caused by absorption liquid failure; (4) bottom plate positioning groove and absorption bucket bottom shape match, prevent device from shaking when moving through friction and limiting structure; avoid personnel to cause scald or corrosive injury by mistake absorption bucket, prevent absorption bucket from toppling over in the transportation process simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection device technology, and in particular relates to an exhaust gas absorption device. Background Technology

[0002] Currently, in chlor-alkali plant production, chlorine gas samples need to be analyzed at the head tube of the electrolytic cell. Chlorine is a toxic and harmful gas, and sampling personnel wear gas masks for sampling. Because chlorine is used for replacement during sampling, previous sampling methods did not ensure complete sealed collection of the replaced gas, often resulting in some of the replacement gas drifting into the air. This not only triggers on-site gas alarms but also causes environmental pollution and potential health risks. Therefore, there is an urgent need to develop an auxiliary gas sampling device to collect all waste gas. Summary of the Invention

[0003] To address the problem of exhaust gas leakage in the prior art, this utility model provides an exhaust gas absorption device. The technical solution includes an absorption tank containing a substance for absorbing exhaust gas. The top of the absorption tank is detachably connected to a top cover. An exhaust gas connection pipe is provided through the top cover, and a needle valve is installed on the exhaust gas connection pipe. The absorption tank is placed on a traveling mechanism.

[0004] In a preferred embodiment, the top cover is provided with a feed inlet, and the bottom side of the absorption tank is provided with a discharge outlet.

[0005] In a preferred embodiment, a pH sensor is also provided through the top cover, with the detection end of the pH sensor extending into the bottom of the absorption tank.

[0006] In a preferred embodiment, the walking mechanism includes a base plate, the absorption tank is placed on the base plate, and several walking wheels are fixedly installed on the bottom surface of the base plate.

[0007] In a preferred embodiment, the base plate is provided with railings, and the railings and the tie rods are hinged together by a pivot.

[0008] In a preferred embodiment, the railing surrounds three sides of the absorption barrel, and a switch rod and a blocking block are provided on the remaining side. The blocking block is fixedly installed on the post of the railing. One end of the switch rod is pivotally hinged to another adjacent post of the railing, and the other end cooperates with the blocking block.

[0009] In a preferred embodiment, the bottom plate is further provided with a positioning groove, the shape of which is adapted to the bottom of the absorption barrel.

[0010] In a preferred embodiment, the middle section of the exhaust gas connection pipe is a corrugated pipe.

[0011] The beneficial effects of this utility model are:

[0012] (1) All the exhaust gas is introduced into the absorbent through the exhaust gas connection pipe to prevent the exhaust gas from escaping, thereby reducing environmental pollution and harm to the health of operators.

[0013] (2) The absorption tank is placed on the walking mechanism, which makes it easy to move between multiple exhaust gas sampling points, and a single person can push the device to move, thereby improving the exhaust gas absorption efficiency.

[0014] (3) The pH sensor on the top cover monitors the acidity and alkalinity of the absorbent in real time. When the pH value is lower than the set threshold, an alarm is issued through the control terminal to remind the operator to replace the absorbent in time. This design can reduce the waste of absorbent compared with the traditional manual timed replacement method, and at the same time avoid the decrease in absorption efficiency due to the failure of absorbent.

[0015] (4) The bottom plate positioning groove matches the shape of the bottom of the absorption tank. The friction and limiting structure prevent the device from shaking when it moves. The railing surrounds the three sides of the absorption tank. The switch rod and the blocking block form a lockable protective door to prevent personnel from accidentally touching the absorption tank and causing burns or corrosion damage. At the same time, it prevents the absorption tank from tipping over during transportation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the walking mechanism in this utility model.

[0018] Figure 3 This is a front view of the present invention.

[0019] Figure 4 This is the right view of the present invention.

[0020] Figure 5 This is a top view of the present invention.

[0021] In the diagram: 1. Absorption tank; 2. Top cover; 201. Feed inlet; 202. pH sensor; 3. Exhaust gas connection pipe; 4. Needle valve; 5. Discharge outlet; 6. Walking mechanism; 601. Base plate; 602. Railing; 603. Switch rod; 604. Blocking block; 605. Walking wheel; 606. Positioning groove; 607. Pull rod. Detailed Implementation

[0022] like Figure 1-5 The exhaust gas absorption device shown includes an absorption tank 1 containing a substance for absorbing exhaust gas. The top of the absorption tank 1 is detachably connected to the top cover 2 (e.g., threaded connection or snap-fit ​​connection). The top cover 2 is provided with an exhaust gas connection pipe 3, and a needle valve 4 is provided on the exhaust gas connection pipe 3. The absorption tank 1 is placed on the traveling mechanism 6.

[0023] Furthermore, the top cover 2 is provided with a feed inlet 201, and the bottom side of the absorption tank 1 is provided with a discharge outlet 5.

[0024] Furthermore, a pH sensor 202 is also provided through the top cover 2, with the detection end of the pH sensor 202 extending into the bottom of the absorption tank 1.

[0025] Furthermore, the walking mechanism 6 includes a base plate 601, the absorption tank 1 is placed on the base plate 601, and a number of walking wheels 605 are fixedly arranged on the bottom surface of the base plate 601.

[0026] Furthermore, the base plate 601 is provided with a railing 602, which is hinged to the pull rod 607 via a pivot. The pull rod 607 can rotate freely around the pivot, which makes it convenient for the operator to pull or push the walking mechanism, and also enables the pull rod 607 to be folded and stored.

[0027] Furthermore, the railing 602 surrounds three sides of the absorption barrel 1, and a switch rod 603 and a blocking block 604 are provided on the remaining side. The blocking block 604 is fixedly installed on the post of the railing 602. One end of the switch rod 603 is pivotally hinged to another adjacent post of the railing 602, and the other end cooperates with the blocking block 604 to form a locking structure.

[0028] Furthermore, a positioning groove 606 is provided on the base plate 601. The shape of the positioning groove 606 is adapted to the bottom of the absorption barrel 1 to limit the horizontal displacement of the absorption barrel 1.

[0029] Furthermore, the middle section of the exhaust gas connection pipe 3 is a corrugated pipe, which allows the exhaust gas connection pipe 3 to move freely left and right or tilt within a certain angle, expanding the application scenarios of the device.

[0030] The process of using the above-mentioned device is as follows: Add alkaline solution (32% sodium hydroxide solution) to 80% of the height of the absorption tank 1 through the feed port 201 on the top cover 2. Then, move the device to the tail gas sampling point by pulling the lever 607. Adjust the tail gas connection pipe 3 to a suitable angle and height, and then connect it to the tail gas pipe. First, open the needle valve 202 to open the tail gas pipe valve to prevent chlorine leakage. After sampling is completed, close the tail gas pipe valve. When the pH sensor 202 reading remains unchanged, close the needle valve 4 and push the device away. When the pH sensor 202 reading reaches the threshold, the control system interlocked with the pH sensor 202 will issue a prompt to remind you to replace the absorption liquid. At this time, move the device to the waste liquid pool, open the valve of the discharge port 5 to drain the waste liquid, then close the valve, open the feed port 201 switch, and add alkaline solution to 80% of the height of the absorption tank 1.

Claims

1. A tail gas absorption device, characterized in that, The system includes an absorption tank (1) containing a substance for absorbing exhaust gas. The top of the absorption tank (1) is detachably connected to a top cover (2). An exhaust gas connection pipe (3) is provided through the top cover (2), and a needle valve (4) is provided on the exhaust gas connection pipe (3). The absorption tank (1) is placed on a walking mechanism (6), which includes a base plate (601). The absorption tank (1) is placed on the base plate (601), and several walking wheels are fixedly provided on the bottom surface of the base plate (601). 605), the base plate (601) is provided with a railing (602), the railing (602) and the pull rod (607) are hinged by a pivot, the railing (602) surrounds three sides of the absorption barrel (1), and the remaining side is provided with a switch rod (603) and a blocking block (604). The blocking block (604) is fixedly set on the post of the railing (602), one end of the switch rod (603) is hinged to another adjacent post of the railing (602) by a pivot, and the other end is engaged with the blocking block (604).

2. The exhaust gas absorption device according to claim 1, characterized in that, The top cover (2) is provided with a feed inlet (201), and the bottom side of the absorption tank (1) is provided with a discharge outlet (5).

3. The exhaust gas absorption device according to claim 1, characterized in that, A pH sensor (202) is also provided through the top cover (2), and the detection end of the pH sensor (202) extends into the bottom of the absorption tank (1).

4. The exhaust gas absorption device according to claim 1, characterized in that, The bottom plate (601) is also provided with a positioning groove (606), the shape of which is adapted to the bottom of the absorption barrel (1).

5. The exhaust gas absorption device according to claim 1, characterized in that, The middle section of the exhaust gas connection pipe (3) is a corrugated pipe.

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