CN219433049U - Sulfur-rich gas pipeline drainage device for flue gas purification - Google Patents
Sulfur-rich gas pipeline drainage device for flue gas purification Download PDFInfo
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- CN219433049U CN219433049U CN202320602624.5U CN202320602624U CN219433049U CN 219433049 U CN219433049 U CN 219433049U CN 202320602624 U CN202320602624 U CN 202320602624U CN 219433049 U CN219433049 U CN 219433049U
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- liquid seal
- seal groove
- drain pipe
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Abstract
A sulfur-rich gas pipeline drainage device for flue gas purification belongs to the technical field of flue gas purification equipment and is used for automatically draining a sulfur-rich gas pipeline in the flue gas purification process. The technical proposal is as follows: the water guider is a conical funnel, the upper end of the conical funnel of the water guider is connected to the pipe wall of the sulfur-rich gas pipe, the lower end of the conical funnel of the water guider is connected to the upper end of the drain pipe, a valve is installed on the drain pipe, a liquid seal groove is arranged below the drain pipe and is a rectangular groove body with an upper end face open, water is injected into the liquid seal groove, the lower end of the drain pipe is inserted into water of the liquid seal groove, an overflow port is formed in the upper portion of the groove wall of the liquid seal groove, and a water supplementing pipe is installed above the liquid seal groove. The utility model can automatically discharge the condensed water in the selenium-rich gas pipeline, avoid corrosion of the acid liquor formed by the sulfur-rich gas and the condensed water to the pipeline, prolong the service life of the equipment, ensure the long-term stable operation of the equipment, simultaneously avoid manual operation and lighten the labor intensity of staff and adverse effect on health.
Description
Technical Field
The utility model relates to an automatic drainage device of a sulfur-rich gas pipeline in a flue gas purification process, and belongs to the technical field of flue gas purification equipment.
Background
In steel production, the flue gas generated in the production needs to be purified, so that the environment is prevented from being polluted, and various useful substances in the flue gas are collected, so that comprehensive utilization is achieved, and the production cost is reduced. In the purification process, after the activated carbon is resolved in a resolving tower, the activated carbon is rich in SO 2 Is rich in SO 2 The mixed gas is delivered to a byproduct system. In the conveying process, sulfur-rich gas is required to be purified, and the whole process is that a sulfur-rich gas pipeline is negative pressure, wherein the process generally adopts an adiabatic evaporation dilute acid washing process flow of 'flue gas pre-dedusting high-temperature bag filter → two-stage dynamic wave scrubber → packing tower → two-stage electric demister'.
The flue gas after analysis is about 400 ℃ and the dust content is 20g/Nm 3 The high-temperature flue gas enters a flue gas pre-dedusting high-temperature bag filter to remove about 95 percent of smoke dust, then enters a first dynamic wave scrubber to contact with circulating liquid, after most of HF, HCl and other impurities in the flue gas are washed off, the temperature of furnace gas is reduced to about 83 ℃ through gas-liquid separation, the flue gas enters a second dynamic wave scrubber to further scrub the other harmful impurities in the flue gas, and most of the impurities in the flue gas discharged from the second dynamic wave scrubber are removed and then enter a filler washing tower to enterFurther washing and cooling.
In the actual production process, the humidity of the sulfur-rich gas is increased after washing, the temperature of the flue gas is reduced, and condensed water can be generated in the pipeline when the sulfur-rich gas is conveyed. Condensed water in the pipeline can be mixed with SO in sulfur-rich gas 2 And SO 3 The production of dilute acid can cause the yield of byproducts to be reduced, meanwhile, the corrosion of a sulfur-rich gas pipeline and a condensed water external drainage system can be aggravated, the service life of equipment is reduced, safety accidents such as acid leakage and air leakage are generated, and the normal production process is influenced, so that the condensed water in the pipeline works outside the schedule. At present, the method for discharging condensed water is to reduce negative pressure in a pipeline, and workers open a valve to discharge water on site, so that the solution is complex in process, the stable production rhythm is destroyed, more devices are involved in adjustment, the effect of solving the problem is poor, the labor intensity of workers is high, the operation is dangerous, condensed water can be accumulated in the pipeline by regular operation, long-period operation of the devices is not facilitated, and the problem which is not solved for a long time in production is solved, and the technical personnel are required to be solved effectively.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the drainage device for the sulfur-rich gas pipeline for purifying the flue gas, which can automatically discharge condensed water in the selenium-rich gas pipeline, avoid corrosion of acid liquor formed by sulfur-rich gas and condensed water to the pipeline, prolong the service life of equipment, ensure long-term stable operation of the equipment, save the production cost, simultaneously avoid manual operation, and lighten the labor intensity of staff and adverse effect on health.
The technical scheme for solving the technical problems is as follows:
the utility model provides a sulfur-rich gas pipeline drainage device of flue gas purification, it includes the water conservancy diversion ware, the drain pipe, the valve, the liquid seal groove, the water conservancy diversion ware is the toper funnel, the upper end of the toper funnel of water conservancy diversion ware is connected on the pipe wall of sulfur-rich gas pipeline, the lower extreme of the toper funnel of water conservancy diversion ware is connected with the upper end of drain pipe, install the valve on the drain pipe, the liquid seal groove is placed to the below of drain pipe, the liquid seal groove is up end open-ended rectangle cell body, the water is poured into in the liquid seal groove, the lower extreme of drain pipe inserts the aquatic in the liquid seal groove.
Above-mentioned flue gas purification's rich sulphur pipeline drainage device, the cell wall upper portion of liquid seal groove has the overflow mouth, and the moisturizing pipe is installed to the top of liquid seal groove, and the delivery port of moisturizing pipe is relative with the upper end opening of liquid seal groove.
According to the sulfur-rich gas pipeline drainage device for flue gas purification, the sulfur-rich gas pipeline is in a negative pressure state, and after the drain pipe is inserted into the liquid seal groove water, the water pressure received by the lower end of the drain pipe is 1.5 times of the negative pressure upper limit of the sulfur-rich gas pipeline.
The beneficial effects of the utility model are as follows:
the upper end of the drain pipe is connected with the sulfur-rich gas pipeline, the lower end of the drain pipe is inserted into water in the liquid seal groove, and the pressure difference between the atmosphere environment and the sulfur-rich gas pipeline enables the water in the liquid seal groove to form a liquid column in the drain pipe so as to form a liquid seal for the drain pipe; the condensed water in the sulfur-rich gas pipeline flows to a drain pipe, and the drain pipe automatically drains to a liquid seal groove according to the pressure difference, so that the condensed water in the sulfur-rich gas pipeline is automatically drained; the valve can control the closing and opening of the drain pipe; the water supplementing pipe can supplement water to the liquid seal groove, and can prevent the lower end of the drain pipe from exposing to the water surface of the liquid seal groove, so that air enters the sulfur-rich air pipeline from the drain pipe.
The utility model has simple structure and convenient use, realizes unpowered drainage by utilizing the pressure difference between the atmosphere environment and the sulfur-rich gas pipeline, automatically and continuously performs drainage in the normal production process, greatly reduces the harm caused by dilute acid, also avoids the labor intensity, the poor working environment and the hidden danger of safety and health existing in manual regular drainage, and greatly improves the drainage efficiency and effect.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The figures are labeled as follows: the device comprises a sulfur-rich gas pipeline 1, a flow guider 2, a drain pipe 3, a valve 4, a liquid seal groove 5, an overflow port 6 and a water supplementing pipe 7.
Description of the embodiments
The utility model is composed of a deflector 2, a drain pipe 3, a valve 4, a liquid seal groove 5, an overflow port 6 and a water supplementing pipe 7.
In the figure, the flow director is a conical funnel, the upper end of the conical funnel of the flow director is connected to the pipe wall of the sulfur-rich gas pipeline, and the lower end of the conical funnel of the flow director is connected with the upper end of the drain pipe.
The drawing shows that a valve is arranged on the drain pipe, a liquid seal groove is arranged below the drain pipe, the liquid seal groove is a rectangular groove body with an opening at the upper end face, water is injected into the liquid seal groove, and the lower end of the drain pipe is inserted into the water of the liquid seal groove. Because the sulfur-rich gas pipeline is in a negative pressure state, after the drain pipe is inserted into the liquid seal groove water, the pressure difference between the atmosphere environment and the sulfur-rich gas pipeline enables the liquid seal groove water to enter the drain pipe, a liquid column is formed in the drain pipe, and the height of the liquid column is equal to the weight of the liquid column water corresponding to the difference value between the atmosphere and the negative pressure of the sulfur-rich gas pipeline. In actual operation, the water storage capacity of the liquid seal groove 5 and the height of the drain pipe 3 can be designed according to 1.5 times of the negative pressure upper limit of the sulfur-rich gas pipeline, so that the water pressure born by the lower end of the drain pipe 3 is 1.5 times of the negative pressure upper limit of the sulfur-rich gas pipeline 1, and meanwhile, the water storage capacity in the liquid seal groove 5 is required to be larger than the water column quantity formed in the drain pipe 3 by the negative pressure of the sulfur-rich gas pipeline 1.
In the figure, the overflow port 6 is arranged at the upper part of the groove wall of the liquid seal groove 5, and when the condensed water discharged from the sulfur-rich gas pipeline 1 is excessive, the liquid seal groove 5 can be discharged from the overflow port 6.
In the figure, a water supplementing pipe 7 is arranged above the liquid seal groove 5, and a water outlet of the water supplementing pipe 7 is opposite to an upper end opening of the liquid seal groove 5. The water supplementing pipe 7 can supplement water into the liquid seal groove 5, and can prevent the lower end of the drain pipe 3 from exposing out of the water surface of the liquid seal groove 5, so that air enters the sulfur-rich air pipeline 1 from the drain pipe 3.
The application process of the utility model is as follows:
in the normal production process, the sulfur-rich gas pipeline 1 is produced at negative pressure, the valve 4 is in a normally open state in the production process, and because of the pressure difference between the atmosphere and the sulfur-rich gas pipeline 1, a water column higher than the liquid level of the liquid seal tank 5 is formed in the water drain pipe 3, and the water storage capacity in the liquid seal tank 5 is required to be larger than the water column water quantity formed in the water drain pipe 3 by the negative pressure of the sulfur-rich gas pipeline 1;
when the sulfur-rich gas pipeline 1 produces the comdenstion water, the comdenstion water is led to in the drain pipe 3 by the water director 2, according to the negative pressure condition of sulfur-rich gas pipeline 1, the water column height changes in the drain pipe 3, when the negative pressure becomes low, the water column in the drain pipe 3 becomes low, unnecessary rivers flow to in the liquid seal groove 5, when liquid level is higher than overflow port 6 in the liquid seal groove 5, water flows to outer pipeline from overflow port 6, when liquid seal groove 5 lacks water, open moisturizing pipe 7 and carry out moisturizing, the comdenstion water discharge is in the dynamic balance in the middle of the sulfur-rich gas pipeline 1.
One embodiment of the utility model is as follows:
the diameter of the conical upper end of the flow guider 2 is 300mm, the diameter of the lower end is 100mm, and the height is 220mm;
the diameter of the drain pipe 3 is 100mm, and the length is 3050mm;
the model of the valve 4 is D100mm;
the length of the liquid seal groove 5 is 400mm, the width is 400mm, and the height is 400mm;
the diameter of the overflow port 6 is 30mm;
the diameter of the water supplementing pipe 7 is 10mm.
Claims (3)
1. The utility model provides a sulfur-rich gas pipeline drainage device of flue gas purification which characterized in that: the novel sulfur-rich air pipe comprises a flow director (2), a drain pipe (3), a valve (4) and a liquid seal groove (5), wherein the flow director (2) is a conical funnel, the upper end of the conical funnel of the flow director (2) is connected to the pipe wall of a sulfur-rich air pipe (1), the lower end of the conical funnel of the flow director (2) is connected with the upper end of the drain pipe (3), the valve (4) is arranged on the drain pipe (3), the liquid seal groove (5) is arranged below the drain pipe (3), the liquid seal groove (5) is a rectangular groove body with an upper end face open, water is injected into the liquid seal groove (5), and the lower end of the drain pipe (3) is inserted into water in the liquid seal groove (5).
2. The sulfur-rich tracheal drainage device of claim 1, wherein: an overflow port (6) is formed in the upper portion of the groove wall of the liquid seal groove (5), a water supplementing pipe (7) is arranged above the liquid seal groove (5), and a water outlet of the water supplementing pipe (7) is opposite to an upper end opening of the liquid seal groove (5).
3. The sulfur-rich tracheal drainage device of claim 1, wherein: the sulfur-rich gas pipeline (1) is in a negative pressure state, and after the drain pipe (3) is inserted into water in the liquid seal groove (5), the water pressure received by the lower end of the drain pipe (3) is 1.5 times of the upper limit of the negative pressure of the sulfur-rich gas pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320602624.5U CN219433049U (en) | 2023-03-24 | 2023-03-24 | Sulfur-rich gas pipeline drainage device for flue gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320602624.5U CN219433049U (en) | 2023-03-24 | 2023-03-24 | Sulfur-rich gas pipeline drainage device for flue gas purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219433049U true CN219433049U (en) | 2023-07-28 |
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ID=87336511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320602624.5U Active CN219433049U (en) | 2023-03-24 | 2023-03-24 | Sulfur-rich gas pipeline drainage device for flue gas purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219433049U (en) |
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2023
- 2023-03-24 CN CN202320602624.5U patent/CN219433049U/en active Active
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