Gas-liquid-solid separator for purifying coke oven gas

Abstract

The utility model relates to the technical field of gas, liquid and solid separation for coke oven gas purification, in particular to a gas, liquid and solid separator for coke oven gas purification, which comprises a shell, a reflector, a settling pond, an inlet pipe and an exhaust pipe, washing liquid is contained in the sedimentation tank; the shell is provided with a cavity with an open lower end; the shell is vertically arranged in the sedimentation tank, and a gap is formed between the lower end of the shell and the bottom wall of an inner cavity of the sedimentation tank; the outlet end of the inlet pipe vertically penetrates through the top plate of the shell and extends into the inner cavity of the shell; the reflector is arranged in the inner cavity of the shell and located under the outlet end of the inlet pipe. And the exhaust pipe is arranged on a top plate of the shell. The settling pond is arranged, the washing liquid is contained in the settling pond, solid impurities in water can be subjected to gravity settling in the settling pond after gas and liquid separation, the upper-layer washing liquid in the settling pond is pumped back into the system through the high-pressure pump to be recycled, and gas volatilizes upwards due to low density and enters the system again to be used after being collected.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid-solid separation technology, and in particular to a gas-liquid-solid separator for purifying coke oven gas. Background Technology

[0002] Gas-liquid separators are mainly used in industrial systems containing liquid to separate gas and liquid, improving the dryness of the gas and reducing water carryover in the vapor. Commonly used gas-liquid separators include tubular separators, louvered separators, and cyclone separators.

[0003] In the prior art, patent CN217449318U discloses a novel gas-water separator for water pumping tests of air compressors. The gas-water mixture inlet of the gas-water separator is directly connected to the water pumping sleeve, and the air inlet of the air pipe is connected to the air outlet of the air compressor. The gas-water mixture enters the separator through the gas-water mixture inlet along the sleeve. Under the action of the reflector, part of the liquid in the gas-water mixture naturally falls under the action of gravity and flows to the bottom, flowing out through the second hole and the drain pipe. During the rising process, as the liquid condenses and the flow rate decreases, the liquid carried by the gas-water mixture is gradually separated. The rest collides with the baffle plate and reflector inside the novel gas-water separator, slows down the flow rate, and further condenses. The liquid drips down along the first hole on the baffle plate and flows out through the drain pipe through the second hole by gravity. The separated gas is discharged upward through the exhaust pipe.

[0004] However, the gas-liquid separators in the prior art described above have the following problems:

[0005] (1) In the gas-water separator of the prior art, after the gas-water mixture enters the separator shell along the sleeve for gas-water separation, the liquid naturally falls under the action of gravity and flows to the bottom, directly from the drain pipe, so that solid impurities in the liquid cannot be precipitated.

[0006] (2) In the gas-water separator of the prior art, the sleeve is set vertically, the lower end of the sleeve is the inlet of the gas-water mixture, the upper end is the outlet, and the reflector is located directly above the sleeve. When the gas-water mixture enters along the sleeve and impacts the reflector, some liquid will fall back into the sleeve under the action of gravity, affecting the efficiency of the gas-water mixture being discharged from the outlet end of the sleeve.

[0007] Therefore, the gas-liquid separators in the prior art described above are not suitable for gas-liquid separation of washing water containing both gaseous and solid impurities. Utility Model Content

[0008] The main objective of this invention is to propose a gas-liquid-solid separator for coke oven gas purification, aiming to solve the aforementioned technical problems.

[0009] To achieve the above objectives, this utility model proposes a gas-liquid-solid separator for coke oven gas purification, comprising a shell, a reflector, a sedimentation tank, an inlet pipe, and an exhaust pipe; the sedimentation tank contains a washing liquid; the shell has a cavity with an open lower end; the shell is vertically arranged in the sedimentation tank, and there is a gap between the lower end of the shell and the bottom wall of the inner cavity of the sedimentation tank; the outlet end of the inlet pipe passes vertically through the top plate of the shell and extends into the inner cavity of the shell; the reflector is arranged in the inner cavity of the shell and is located directly below the outlet end of the inlet pipe; the exhaust pipe is installed on the top plate of the shell.

[0010] Preferably, the inlet pipe is welded to the top plate of the shell by full welding.

[0011] Preferably, the reflector is connected to the inlet pipe by multiple connecting rods.

[0012] Preferably, there are three connecting rods, which are evenly distributed in a ring. The upper end of the connecting rod is welded to the end face of the inlet pipe, and the lower end is welded to the reflector.

[0013] Preferably, the reflector is hemispherical in shape, and the outlet end of the inlet pipe faces the concave surface of the reflector.

[0014] Preferably, the inner diameter of the reflector is The inner diameter of the shell is

[0015]

[0016] Preferably, the height of the shell is H2, satisfying: H2≥2000mm; the liquid level of the washing liquid contained in the sedimentation tank is between 1 / 2 and 2 / 3 of the height of the shell.

[0017] Preferably, the distance between the lower end of the shell and the bottom wall of the inner cavity of the sedimentation tank is H3, which satisfies: H3≥300mm.

[0018] Preferably, the length of the inlet pipe extending into the inner cavity of the housing is H1, satisfying: H1≥100mm.

[0019] Preferably, a first valve is provided on the inlet pipe and a second valve is provided on the exhaust pipe; both the first valve and the second valve are ball valves.

[0020] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0021] (1) By employing the gas-liquid-solid separator provided by this utility model, washing water containing gas, liquid, and solid impurities enters from the top of the shell through the inlet pipe. The reflector blocks and changes the direction of the water flow, reducing the downward impact force on the liquid inside the shell. Then, the water and solid impurities flow downward into the interior of the shell under the action of gravity, while the gas in the water moves upward and is discharged through the exhaust pipe on the top plate of the shell. Since the shell and the sedimentation tank form a communicating vessel structure, the water and solid impurities enter the sedimentation tank for sedimentation. Then, a high-pressure pump is used to pump the supernatant in the sedimentation tank back into the system for recycling. Finally, the separation of gas, liquid, and solid is completed.

[0022] (2) In the gas-liquid-solid separator provided by this utility model, by setting up a sedimentation tank and filling the sedimentation tank with washing liquid, it can be precipitated with the water after gas-liquid separation, thereby playing the role of removing impurities.

[0023] (3) In this utility model, by setting the reflector directly below the outlet end of the inlet pipe, when the washing water containing gas and solid impurities flows out from the outlet end of the inlet pipe and impacts the reflector to change the direction of the water flow, the washing water then enters the interior of the shell under the action of gravity, thus overcoming the problem of setting the reflector directly above the sleeve in the prior art. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the gas-liquid-solid separator provided by this utility model.

[0026] Explanation of reference numerals in the attached diagram: 1. Shell; 2. Reflector; 3. Sedimentation tank; 4. Inlet pipe; 5. Exhaust pipe; 6. Connecting rod; 7. First valve; 8. Second valve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] Combination Figure 1 As shown, a gas-liquid-solid separator for purifying coke oven gas includes a shell 1, a reflector 2, a sedimentation tank 3, an inlet pipe 4, and an exhaust pipe 5. The sedimentation tank 3 contains a washing liquid. The shell 1 has a cavity with an open lower end. The shell 1 is vertically arranged in the sedimentation tank 3, and there is a gap between the lower end of the shell 1 and the bottom wall of the inner cavity of the sedimentation tank 3. The outlet end of the inlet pipe 4 passes vertically through the top plate of the shell 1 and extends into the inner cavity of the shell 1. The reflector 2 is arranged in the inner cavity of the shell 1 and is located directly below the outlet end of the inlet pipe 4. The exhaust pipe 5 is installed on the top plate of the shell 1.

[0031] In this embodiment, the inlet pipe 4 and the top plate of the shell 1 are welded together using a full weld method. The resulting circumferential weld is as follows: Figure 1 As shown in reference numeral A, the inlet pipe 4 and the shell 1 are welded together using a full welding method to ensure a tight seal between them.

[0032] In this embodiment, the reflector 2 and the inlet pipe 4 are connected by multiple connecting rods 6. Specifically, there are three connecting rods 6, which are evenly distributed in a ring. The upper end of each connecting rod 6 is welded to the end face of the inlet pipe 4, and the lower end is welded to the reflector 2.

[0033] In this embodiment, the exhaust pipe 5 is The pipe body, wherein the inlet pipe 4 has an inner diameter of of tube body.

[0034] In this embodiment, the reflector 2 is hemispherical in shape, and the outlet end of the inlet pipe 4 faces the concave surface of the reflector 2. Further, the inner diameter of the reflector 2 is... The inner diameter of the housing 1 is

[0035] Combination Figure 1 As shown, the height of the shell 1 is H2, satisfying: H2 ≥ 2000 mm; the liquid level of the washing liquid in the sedimentation tank 3 is between 1 / 2 and 2 / 3 of the height of the shell 1. Simultaneously, the liquid level of the washing liquid is ensured to be below the reflector 2.

[0036] To ensure that the liquid inside the shell 1 can smoothly enter the sedimentation tank, the distance between the lower end of the shell 1 and the bottom wall of the inner cavity of the sedimentation tank 3 should not be too small. Specifically, the distance between the lower end of the shell 1 and the bottom wall of the inner cavity of the sedimentation tank 3 is H3, which satisfies: H3≥300mm.

[0037] In order to facilitate the installation of reflector 2, the length of the inlet pipe 4 extending into the housing 1 should not be too short. Specifically, the length of the inlet pipe 4 extending into the inner cavity of the housing 1 is H1, which satisfies: H1≥100mm.

[0038] In order to facilitate the control of the flow rate of washing water in the inlet pipe 4 and the exhaust speed of the exhaust pipe 2, a first valve 7 is provided on the inlet pipe 4 and a second valve 8 is provided on the exhaust pipe 5; both the first valve 7 and the second valve 8 are ball valves.

[0039] The working principle of the gas-liquid-solid separator for coke oven gas purification provided in this embodiment is as follows:

[0040] Washing water containing gaseous and solid impurities enters the shell 1 from the top through inlet pipe 4. The reflector 2 blocks and changes the direction of the water flow, reducing the downward impact on the liquid inside the shell 1. Then, under the influence of gravity, the water and solid impurities flow downwards into the interior of the shell 1, while the gas in the water moves upwards and is discharged through the exhaust pipe 5 on the top plate of the shell 1. Because the shell 1 and the sedimentation tank 3 form a communicating vessel structure, the water and solid impurities enter the sedimentation tank 3 for washing and sedimentation. Finally, gas-liquid-solid separation is completed.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A gas, liquid, solid separator for the purification of coke oven gas, characterized in that, It comprises a shell (1), a reflector (2), a sedimentation tank (3), an inlet pipe (4) and an exhaust pipe (5); the sedimentation tank (3) is filled with washing liquid; The shell (1) has a cavity with an open lower end; the shell (1) is vertically arranged in the sedimentation tank (3), and there is a gap between the lower end of the shell (1) and the bottom wall of the inner cavity of the sedimentation tank (3); The outlet end of the inlet pipe (4) vertically penetrates the top plate of the shell (1) and extends into the inner cavity of the shell (1); the reflector (2) is arranged in the inner cavity of the shell (1) and located directly below the outlet end of the inlet pipe (4); the exhaust pipe (5) is installed on the top plate of the shell (1).

2. A gas, liquid, solid separator for the purification of coke oven gas according to claim 1, characterized in that, The inlet pipe (4) and the top plate of the shell (1) are welded in a full welding manner.

3. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 1, characterized in that, The reflector (2) and the inlet pipe (4) are connected by a plurality of connecting rods (6).

4. A gas, liquid, solid separator for the purification of coke oven gas according to claim 3, characterized in that, The number of connecting rods (6) is three, and the three connecting rods (6) are annularly and uniformly arranged; the upper end of the connecting rod (6) is welded with the end face of the inlet pipe (4), and the lower end is welded with the reflector (2).

5. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 1, characterized in that, The reflector (2) is in the shape of a hemispherical shell, and the outlet end of the inlet pipe (4) is directly opposite the inner concave surface of the reflector (2).

6. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 5, characterized in that, The inner diameter of the reflector (2) is The inner diameter of the housing (1) is 7. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 1, wherein, The height of the shell (1) is H2, which satisfies: H2≥2000mm; the liquid level of the washing liquid filled in the sedimentation tank (3) is located between 1 / 2 and 2 / 3 of the height of the shell (1).

8. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 1, wherein, The gap distance between the lower end of the shell (1) and the bottom wall of the inner cavity of the sedimentation tank (3) is H3, which satisfies: H3≥300mm.

9. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 1, wherein, The length of the inlet pipe (4) extending into the inner cavity of the shell (1) is H1, which satisfies: H1≥100mm.

10. A gas, liquid, solid separator for the purification of coke oven gas as claimed in claim 1, wherein, A first valve (7) is arranged on the inlet pipe (4), and a second valve (8) is arranged on the exhaust pipe (5); the first valve (7) and the second valve (8) are both ball valves.

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