CN220845990U - Safety isolation device of wet acetylene generating system - Google Patents
Safety isolation device of wet acetylene generating system Download PDFInfo
- Publication number
- CN220845990U CN220845990U CN202322571123.8U CN202322571123U CN220845990U CN 220845990 U CN220845990 U CN 220845990U CN 202322571123 U CN202322571123 U CN 202322571123U CN 220845990 U CN220845990 U CN 220845990U
- Authority
- CN
- China
- Prior art keywords
- acetylene
- regulating valve
- water
- generating system
- sealed tank
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- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims abstract description 92
- 238000002955 isolation Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 69
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000007789 gas Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 26
- 239000010865 sewage Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000005997 Calcium carbide Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The utility model discloses a safety isolation device of a wet acetylene generating system, which comprises an acetylene generating system, an outlet acetylene main pipe of the generating system, an acetylene gas cabinet and a cleaning system, wherein manual valves are arranged on air inlet pipes of the acetylene gas cabinet and the cleaning system; the generating system outlet acetylene main pipe is connected with a water-sealed tank, an 8-shaped blind plate is arranged on the generating system outlet acetylene main pipe, the lower part of the water-sealed tank is connected with a sewage discharge regulating valve, the air inlet pipes of the acetylene gas cabinet and the cleaning system are connected with the side wall of the water-sealed tank above the sewage discharge regulating valve, the upper part of the water-sealed tank is also connected with a nitrogen inlet pipe, an emptying pipe and a water adding pipe, and the nitrogen charging regulating valve, the emptying regulating valve and the water adding regulating valve are respectively arranged on the water-sealed tank; the utility model can prevent the volatilized acetylene gas from returning to the generation system, ensure the maintenance safety, realize automatic control and reduce the labor intensity of field operators.
Description
Technical Field
The utility model relates to a safety isolation device for a wet acetylene generating system.
Background
In the wet acetylene production process, calcium carbide is used as a production raw material, the calcium carbide contacts with water in a generator to react, part of generated acetylene gas enters a cleaning system and is then sent to chloroethylene for synthesis, and the other part of the generated acetylene gas enters an acetylene gas cabinet for buffering. The acetylene generating system, the cleaning system and the acetylene cabinet are connected through an acetylene pipeline; manual valves are arranged on the acetylene gas pipelines at the outlet of the generating system, the inlet of the cleaning system and the inlet of the acetylene gas cabinet.
Because the calcium carbide is produced by reacting coke and lime at a high temperature of 1800-2300 ℃, part of tin and iron are entrained, after the calcium carbide contacts and reacts with water in the generator, the tin and iron which does not react with water stays in the generator and can cause abrasion of overflow pipes, rake teeth and partition plates of the generator, therefore, the generator needs to be stopped and overhauled for 1-2 times each year, the generator is overhauled in the process of possibly involving fire operation such as welding and limited space operation, the acetylene concentration in the generator must be ensured to be qualified, a generating system, a cleaning system and an acetylene gas cabinet are connected through an acetylene pipeline, the possibility that the valve is not tight still exists after the manual valve at the inlet of the cleaning system and the acetylene gas cabinet is closed, and acetylene gas volatilized by the cleaning system and the acetylene gas cabinet can return to the generating system through the acetylene gas pipeline to cause explosion, so that potential safety hazards are brought to the overhauling of the generator.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a safety isolation device for a wet acetylene generating system, which can prevent volatilized acetylene gas from returning to the generating system, ensure maintenance safety, realize automatic control and reduce the labor intensity of field operators.
In order to achieve the aim, the safety isolation device of the wet acetylene generating system comprises an acetylene generating system, an acetylene main pipe at an outlet of the acetylene generating system, an acetylene gas cabinet and a cleaning system, wherein manual valves are arranged on air inlet pipes of the acetylene gas cabinet and the cleaning system; the method is characterized in that: the generating system outlet acetylene main pipe is connected with the water-sealed tank, an 8-shaped blind plate is arranged on the generating system outlet acetylene main pipe, the lower part of the water-sealed tank is connected with a sewage discharge regulating valve, the air inlet pipes of the acetylene gas cabinet and the cleaning system are connected with the side wall of the water-sealed tank above the sewage discharge regulating valve, the upper part of the water-sealed tank is also connected with a nitrogen inlet pipe, an emptying pipe and a water adding pipe, and the nitrogen charging regulating valve, the emptying regulating valve and the water adding regulating valve are respectively arranged on the water-sealed tank.
When the acetylene generating system is normally opened, condensed water in the water sealed tank is discharged through the blowdown regulating valve, and acetylene gas in the generating system and the acetylene gas cabinet can flow back and forth; when the acetylene generating system needs to be overhauled by fire, a manual valve on an air inlet pipe of the acetylene gas cabinet and the cleaning system is closed, the acetylene generating system is subjected to blind break through an 8-shaped blind plate, a nitrogen charging regulating valve and an emptying regulating valve are opened, nitrogen is introduced into the acetylene generating system, a water-sealed tank is replaced, gas in the air inlet pipe from the acetylene generating system to the acetylene gas cabinet and the cleaning system is replaced by qualified gas, a water-charging regulating valve is opened to add the liquid level of the water-sealed tank to a designated position, the liquid-sealed acetylene gas cabinet and the air inlet pipe of the cleaning system are discharged through the emptying pipe, and the replaced gas enters a recovery device for recovery. According to the utility model, the water-sealed tank is replaced and sampled to be qualified by introducing nitrogen, water is added for liquid sealing, and meanwhile, the acetylene manifold at the outlet of the generating system is subjected to blind breaking by using the 8-shaped blind plate, so that the volatilized acetylene gas is prevented from returning to the generating system, the safety isolation of the generating system is realized, and the overhaul safety is ensured.
As a further improvement of the utility model, the lower part of the water sealed tank is provided with a liquid level transmitter, the sewage discharge regulating valve and the water adding regulating valve are self-control regulating valves, and the liquid level transmitter is connected with the sewage discharge regulating valve and the water adding regulating valve; can realize the automatic control of the liquid level in the water sealed tank.
As a further improvement of the utility model, the upper part of the water sealed tank is provided with a pressure transmitter, the nitrogen charging regulating valve and the emptying regulating valve are self-control regulating valves, and the pressure transmitter is connected with the nitrogen charging regulating valve and the emptying regulating valve; when the water-sealed tank is replaced, if the pressure transmitter detects that the pressure is lower than or lower than a set value, the nitrogen regulating valve can be properly increased in opening degree, so that enough nitrogen enters the equipment for replacement, and the water-sealed tank can be automatically replaced through loop control of the nitrogen charging regulating valve, the emptying regulating valve and the pressure transmitter.
As a further improvement of the utility model, a flame arrester is arranged on the emptying pipe; the air exchanging body can be safely discharged, so that the safety risk in the replacement process is reduced.
As a further improvement of the utility model, the tail end of the main pipe of the acetylene generating system outlet extends into the water-sealed tank and is positioned below the acetylene cabinet and the air inlet pipe of the cleaning system; can prevent dissolved acetylene gas possibly existing in the water sealed tank from volatilizing.
In conclusion, the utility model can prevent the volatilized acetylene gas from returning to the generation system, ensure the maintenance safety, realize automatic control and reduce the labor intensity of field operators.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present utility model.
Detailed Description
In order to more clearly understand the objects, technical solutions and advantageous effects of the present utility model, the present utility model will be further described with reference to the accompanying drawings, but the scope of protection of the present utility model is not limited to the following examples.
As shown in fig. 1, the safety isolation device of the wet acetylene generating system in the embodiment comprises an acetylene generating system 20, an acetylene main pipe 1 at the outlet of the generating system, an acetylene gas cabinet 2 and a cleaning system 3, wherein manual valves 4 or 5 are arranged on air inlet pipes 10 of the acetylene gas cabinet 2 and the cleaning system 3; the generating system outlet acetylene main pipe 1 is connected with the water-sealed tank 6, the generating system outlet acetylene main pipe 1 is provided with a 8-shaped blind plate 7, the lower part of the water-sealed tank 6 is connected with a sewage discharge regulating valve 9 and a liquid level transmitter 11, an air inlet pipe 10 of the acetylene gas cabinet and the cleaning system is connected with the side wall of the water-sealed tank 6 above the sewage discharge regulating valve 9, and the tail end of the generating system outlet acetylene main pipe 1 extends into the water-sealed tank 6 and is positioned below the air inlet pipe 10; the upper part of the water sealed tank 6 is also connected with a nitrogen inlet pipe 12, an emptying pipe 13, a water adding pipe 14 and a pressure transmitter 15, the nitrogen inlet pipe 12 is provided with a nitrogen charging regulating valve 16, the emptying pipe 13 is provided with an emptying regulating valve 17 and a flame arrester 18, and the water adding pipe 14 is provided with a water adding regulating valve 19; the blowdown regulating valve 9 and the water adding regulating valve 19 are self-control regulating valves, and the liquid level transmitter 11 is connected with the blowdown regulating valve 9 and the water adding regulating valve 19; the nitrogen charging regulating valve 16 and the emptying regulating valve 17 are self-control regulating valves, and the pressure transmitter 15 is connected with the nitrogen charging regulating valve 16 and the emptying regulating valve 17.
The 8-shaped blind plate can meet the safety standard requirement and has good sealing effect when in blind break; when in use, the nitrogen inlet pipe 12 is connected with a nitrogen tank, and the water adding pipe 14 is connected with a water supply system; when the acetylene generating system is normally opened, the 8-shaped blind plate 7 is communicated, condensed water in the water sealed tank 6 is discharged through the pollution discharge regulating valve 9, and acetylene gas in the acetylene generating system 20 and the acetylene gas cabinet 2 can flow back and forth; when the acetylene generating system 20 needs to be subjected to fire maintenance, the manual valves 4 or 5 of the acetylene gas cabinet 2 and the cleaning system 3 are closed, the acetylene main pipe 1 at the outlet of the generating system is subjected to blind break through the 8-shaped blind plate 7, the nitrogen charging regulating valve 16 and the emptying regulating valve 17 are opened, nitrogen is introduced into the water-sealed tank 6 for replacement, the acetylene generating system 20 is subjected to gas replacement in the air inlet pipe 10 of the acetylene gas cabinet 2 and the cleaning system 3 to be qualified, the water-adding regulating valve 19 is opened to add the liquid level of the water-sealed tank to a specified position, the liquid-sealed acetylene gas cabinet 2 and the air inlet pipe 10 of the cleaning system 3 are subjected to discharge of replacement gas through the emptying pipe 13 and the flame arrester 18, and then the replacement gas enters the recovery device for recovery; according to the utility model, the water-sealed tank 6 is replaced and sampled to be qualified by introducing nitrogen, water is added to carry out liquid seal on the air inlet pipe 10, and meanwhile, the acetylene main pipe 1 at the outlet of the generating system is subjected to blind break by the 8-shaped blind plate 7, so that the volatilized acetylene gas is prevented from returning to the generating system, the safety isolation of the generating system is realized, and the overhaul safety is ensured; the blowdown regulating valve 9 and the water adding regulating valve 19 are self-control regulating valves and are internally provided with control programs, and according to the liquid level fed back by the liquid level transmitter, the blowdown regulating valve 9 and the water adding regulating valve 19 can be automatically opened and closed, so that the automatic control of the liquid level in the water sealed tank is realized; the nitrogen charging regulating valve 16 and the emptying regulating valve 17 are used for carrying out loop control with the pressure transmitter 15, if the pressure transmitter 15 detects that the pressure is lower than or lower than a set value, the nitrogen regulating valve 16 can properly increase the opening degree, ensure positive pressure and introduce enough nitrogen for replacement, realize automatic replacement of a water sealed tank and reduce the labor intensity of field operators; the flame arrestor 18 can safely discharge the air exchange body, so that the safety risk in the replacement process is reduced; the tail end of the acetylene main pipe 1 at the outlet of the generation system stretches into the water-sealed tank 6, so that dissolved acetylene gas possibly existing in the water-sealed tank 6 can be prevented from volatilizing, and the safety risk is further reduced.
Claims (5)
1. The safety isolation device of the wet acetylene generating system comprises an acetylene generating system, an acetylene main pipe at an outlet of the generating system, an acetylene gas cabinet and a cleaning system, wherein manual valves are arranged on air inlet pipes of the acetylene gas cabinet and the cleaning system; the method is characterized in that: the generating system outlet acetylene main pipe is connected with the water-sealed tank, an 8-shaped blind plate is arranged on the generating system outlet acetylene main pipe, the lower part of the water-sealed tank is connected with a sewage discharge regulating valve, the air inlet pipes of the acetylene gas cabinet and the cleaning system are connected with the side wall of the water-sealed tank above the sewage discharge regulating valve, the upper part of the water-sealed tank is also connected with a nitrogen inlet pipe, an emptying pipe and a water adding pipe, and the nitrogen charging regulating valve, the emptying regulating valve and the water adding regulating valve are respectively arranged on the water-sealed tank.
2. A safety isolation device for a wet process acetylene generating system according to claim 1, wherein: the lower part of the water sealed tank is provided with a liquid level transmitter, the sewage discharge regulating valve and the water adding regulating valve are self-control regulating valves, and the liquid level transmitter is connected with the sewage discharge regulating valve and the water adding regulating valve.
3. A safety isolation device for a wet process acetylene generating system according to claim 1 or 2, wherein: the upper part of the water sealed tank is provided with a pressure transmitter, the nitrogen charging regulating valve and the emptying regulating valve are self-control regulating valves, and the pressure transmitter is connected with the nitrogen charging regulating valve and the emptying regulating valve.
4. A safety isolation device for a wet process acetylene generating system according to claim 3, wherein: and a flame arrester is arranged on the emptying pipe.
5. A safety isolation device for a wet process acetylene generating system according to claim 4, wherein: the tail end of the main pipe of the acetylene generating system outlet extends into the water-sealed tank and is positioned below the acetylene cabinet and the air inlet pipe of the cleaning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322571123.8U CN220845990U (en) | 2023-09-21 | 2023-09-21 | Safety isolation device of wet acetylene generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322571123.8U CN220845990U (en) | 2023-09-21 | 2023-09-21 | Safety isolation device of wet acetylene generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220845990U true CN220845990U (en) | 2024-04-26 |
Family
ID=90778785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322571123.8U Active CN220845990U (en) | 2023-09-21 | 2023-09-21 | Safety isolation device of wet acetylene generating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220845990U (en) |
-
2023
- 2023-09-21 CN CN202322571123.8U patent/CN220845990U/en active Active
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