CN204543920U - A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system - Google Patents
A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system Download PDFInfo
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- CN204543920U CN204543920U CN201520165022.3U CN201520165022U CN204543920U CN 204543920 U CN204543920 U CN 204543920U CN 201520165022 U CN201520165022 U CN 201520165022U CN 204543920 U CN204543920 U CN 204543920U
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Abstract
The utility model discloses a kind of desorption recovery device for pressure for vacuum pressure swing adsorption system, comprise the vacuum extractor for vacuumizing industrial waste gas, the output of described vacuum extractor is provided with automatic evacuation pipe, the output of described automatic evacuation pipe is connected with buffer unit, the outlet side of described buffer unit is connected with supercharging device, and the outlet side of described supercharging device connects unstripped gas entrance.Solve stripping gas high-altitude in prior art and diffuse the problem causing gas to waste, structure of the present utility model is comparatively simple, and convenient operation, maintenance improve the purification rate of tail gas, cost-saving.
Description
Technical field
The utility model relates to chemical industry tail gas recovery technology field, particularly a kind of desorption recovery device for pressure for vacuum pressure swing adsorption system.
Background technology
Vacuum pressure swing adsorption system utilizes the way vacuumized to reduce by the dividing potential drop of absorbed component, and the component of absorption is desorbed under negative pressure.Vacuum pressure swing adsorption system forms primarily of air blast, vavuum pump, transfer valve and oxygen surge tank.Raw material is quiet and deserted to be gone out after dust granule through suction inlet filter and enters air blast, enters wherein in an absorber under the conveying of air blast.Vacuum pressure swing adsorption system circulation performs step and is adsorption step successively, forward bleeds off pressure step, vacuum desorption step and pressurising step, wherein vacuum desorption step is vacuumized current absorber by the vavuum pump connecting current absorber, but the stripping gas produced after the vacuumizing phase of vacuum desorption completes is that direct high-altitude is diffused, the gas waste so just causing purity higher.
Utility model content
The utility model proposes a kind of desorption recovery device for pressure for vacuum pressure swing adsorption system, solve stripping gas high-altitude in prior art and diffuse the problem causing gas to waste, there is the simple advantage of structure shirtsleeve operation.
The technical solution of the utility model is achieved in that
A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system, comprise the vacuum extractor for vacuumizing industrial waste gas, the output of described vacuum extractor is provided with automatic evacuation pipe, the output of described automatic evacuation pipe is connected with buffer unit, the outlet side of described buffer unit is connected with supercharging device, and the outlet side of described supercharging device connects unstripped gas entrance.
Preferably, described buffer unit comprises surge tank, described surge tank is provided with air inlet and gas outlet, the air inlet of described surge tank is connected with described automatic evacuation pipe, the gas outlet of described surge tank is connected with the inlet end of described supercharging device, and described surge tank is provided with liquid level gauge near the side of described air inlet.
Further, described automatic evacuation pipe branches out two gas pipelines and is respectively main appendix and exhaust stack, and described main appendix is connected with the air inlet of described surge tank, and described main appendix is provided with check valve, described exhaust stack is provided with valve, and the end of described exhaust stack is provided with high-altitude diffusion mouth.
Preferably, described supercharging device comprises compressor, and the air inlet of described compressor is connected with the gas outlet of described surge tank, and the gas outlet of described compressor connects unstripped gas entrance.
Further, the appendix connecting described compressor outlet and described unstripped gas entrance is provided with pressure gage valve, stop valve and check valve successively, gas pipeline between described pressure gage valve and described stop valve branches out return duct, blow-down pipe and root pipe, the other end of described return duct connects the main appendix between check valve and described surge tank air inlet, and described return duct is provided with return valve; The other end of described blow-down pipe connects the exhaust stack between described valve and described high-altitude diffusion mouth, and described blow-down pipe is provided with atmospheric valve; The other end of described root pipe connects the exhaust stack between described valve and described high-altitude diffusion mouth, and described root pipe is provided with root valve and safety valve, and described root valve is arranged at the side near described stop valve.
Further, the pressure in described surge tank is 0 ~ 5KPa.
Beneficial effect:
1) desorption recovery device for pressure for vacuum pressure swing adsorption system is added after the automatic evacuation pipe of the vacuum extractor of the utility model in the vacuum desorption step of former vacuum pressure swing adsorption system in vacuum step, the problem of the gas waste caused is diffused for solving stripping gas high-altitude, structure of the present utility model is comparatively simple, convenient operation, maintenance, improve the purification rate of tail gas, cost-saving.
2) in the utility model blow-down pipe rear end install surge tank, surge tank be arranged so that the work of stripping gas recovery system operates steadily.
3) supercharging device that arranges in surge tank rear end of the utility model, for the pressure remained steady in detection and control surge tank, thus ensures that the normal table that recovery system stable working, protection surge tank and front end vacuumize setting runs.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
10-vacuum extractor, 11-automatic evacuation pipe, 12-main appendix 13-exhaust stack, 14-return duct, 15-blow-down pipe, 16-root pipe
20-return valve, 21-check valve, 22-liquid level gauge, 23-surge tank, 24-water ring compressor, 25-pressure gage valve, 26-stop valve, 27-root valve, 28-atmospheric valve, 29-safety valve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, a kind of desorption recovery device for pressure for vacuum pressure swing adsorption system, comprise the vacuum extractor 10 for vacuumizing industrial waste gas, the output of described vacuum extractor 10 is provided with automatic evacuation pipe 11, the output of described automatic evacuation pipe 11 is connected with buffer unit, the outlet side of described buffer unit is connected with supercharging device, and the outlet side of described supercharging device connects unstripped gas entrance.
Described buffer unit comprises surge tank 23, described surge tank 23 is provided with air inlet and gas outlet, the air inlet of described surge tank 23 is connected with described automatic evacuation pipe 11, the gas outlet of described surge tank 23 is connected with the inlet end of described supercharging device, and described surge tank 23 is provided with liquid level gauge 22 near the side of described air inlet.
Described automatic evacuation pipe 11 branches out two gas pipelines and is respectively main appendix 12 and exhaust stack 13, described main appendix 12 is connected with the air inlet of described surge tank 23, described main appendix 12 is provided with check valve 21, described exhaust stack 13 is provided with valve, and the end of described exhaust stack 13 is provided with high-altitude diffusion mouth.
Described supercharging device comprises compressor 24, and the air inlet of described compressor 24 is connected with the gas outlet of described surge tank 23, and the gas outlet of described compressor 24 connects unstripped gas entrance.
The appendix connecting described compressor 24 gas outlet and described unstripped gas entrance is provided with pressure gage valve 25, stop valve 26 and check valve 21 successively, gas pipeline between described pressure gage valve 25 and described stop valve 26 branches out return duct 14, blow-down pipe 15 and root pipe 16, the other end of described return duct 14 connects the main appendix 12 between check valve 21 and described surge tank 23 air inlet, and described return duct 14 is provided with return valve 20; The other end of described blow-down pipe 15 connects the exhaust stack 13 between described valve and described high-altitude diffusion mouth, and described blow-down pipe 15 is provided with atmospheric valve 28; The other end of described root pipe 16 connects the exhaust stack 13 between described valve and described high-altitude diffusion mouth, and described root pipe 16 is provided with root valve 27 and safety valve 29, and described root valve 27 is arranged at the side near described stop valve 26.
Pressure in described surge tank 23 is 0 ~ 5KPa.
The course of work of the present utility model: open check valve 21, valve-off, the stripping gas that vacuum extractor 10 discharges flows into main appendix 12 through automatic deflation pipe 11 and enters surge tank 22, the gas outlet of surge tank 21 connects water ring compressor, water ring compressor carries out compression conveying to the gas that surge tank 21 flows in it, pressure gage valve 25 is often opened, detect the gas pressure of water ring compressor discharge, whether the pressure in further understanding surge tank 21 meets the requirements, as met the requirements, closing volume valve 20 opens stop valve 26 and check valve 21, stripping gas flows into unstripped gas entrance, if when the pressure that Pressure gauge detects is lower, then open return valve 20, gas enters in surge tank 22 through return duct 14, increase the pressure in surge tank 22, if when the pressure that Pressure gauge detects is higher, then open atmospheric valve 28, gas flows out through high-altitude gas vent, reduces the pressure in surge tank 22, only just closes root valve 27 when safety valve 29 changed by needs.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the desorption recovery device for pressure for vacuum pressure swing adsorption system, comprise the vacuum extractor (10) for vacuumizing industrial waste gas, the output of described vacuum extractor (10) is provided with automatic evacuation pipe (11), it is characterized in that: the output of described automatic evacuation pipe (11) is connected with buffer unit, the outlet side of described buffer unit is connected with supercharging device, and the outlet side of described supercharging device connects unstripped gas entrance.
2. as claimed in claim 1 for the desorption recovery device for pressure of vacuum pressure swing adsorption system, it is characterized in that: described buffer unit comprises surge tank (23), described surge tank (23) is provided with air inlet and gas outlet, the air inlet of described surge tank (23) is connected with described automatic evacuation pipe (11), the gas outlet of described surge tank (23) is connected with the inlet end of described supercharging device, and described surge tank (23) is provided with liquid level gauge (22) near the side of described air inlet.
3. as claimed in claim 2 for the desorption recovery device for pressure of vacuum pressure swing adsorption system, it is characterized in that: described automatic evacuation pipe (11) branches out two gas pipelines and is respectively main appendix (12) and exhaust stack (13), described main appendix (12) is connected with the air inlet of described surge tank (23), described main appendix (12) is provided with check valve (21), described exhaust stack (13) is provided with valve, and the end of described exhaust stack (13) is provided with high-altitude diffusion mouth.
4. as claimed in claim 3 for the desorption recovery device for pressure of vacuum pressure swing adsorption system, it is characterized in that: described supercharging device comprises compressor (24), the air inlet of described compressor (24) is connected with the gas outlet of described surge tank (23), and the gas outlet of described compressor (24) connects unstripped gas entrance.
5. as claimed in claim 4 for the desorption recovery device for pressure of vacuum pressure swing adsorption system, it is characterized in that: the appendix connecting described compressor (24) gas outlet and described unstripped gas entrance is provided with pressure gage valve (25) successively, stop valve (26) and check valve (21), gas pipeline between described pressure gage valve (25) and described stop valve (26) branches out return duct (14), blow-down pipe (15) and root pipe (16), the other end of described return duct (14) connects the main appendix (12) between check valve (21) and described surge tank (23) air inlet, described return duct (14) is provided with return valve (20), the other end of described blow-down pipe (15) connects the exhaust stack (13) between described valve and described high-altitude diffusion mouth, and described blow-down pipe (15) is provided with atmospheric valve (28), the other end of described root pipe (16) connects the exhaust stack (13) between described valve and described high-altitude diffusion mouth, described root pipe (16) is provided with root valve (27) and safety valve (29), and described root valve (27) is arranged at the side near described stop valve (26).
6., as claimed in claim 2 for the desorption recovery device for pressure of vacuum pressure swing adsorption system, it is characterized in that: the pressure in described surge tank (23) is 0 ~ 5KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165022.3U CN204543920U (en) | 2015-03-24 | 2015-03-24 | A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165022.3U CN204543920U (en) | 2015-03-24 | 2015-03-24 | A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system |
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| CN204543920U true CN204543920U (en) | 2015-08-12 |
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| CN201520165022.3U Active CN204543920U (en) | 2015-03-24 | 2015-03-24 | A kind of desorption recovery device for pressure for vacuum pressure swing adsorption system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539967A (en) * | 2017-09-13 | 2018-01-05 | 湖北和远气体股份有限公司 | A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate |
| CN107694283A (en) * | 2017-09-14 | 2018-02-16 | 山西龙智能源化工有限公司 | A kind of voltage-stabilizing system of Utilization of PSA Relief Gas |
-
2015
- 2015-03-24 CN CN201520165022.3U patent/CN204543920U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539967A (en) * | 2017-09-13 | 2018-01-05 | 湖北和远气体股份有限公司 | A kind of system for improving synthesis ammonia relief gas purification separation stability and putting forward argon rate |
| CN107539967B (en) * | 2017-09-13 | 2023-11-03 | 湖北和远气体股份有限公司 | System for improving purification and separation stability and argon extraction rate of synthesis ammonia purge gas |
| CN107694283A (en) * | 2017-09-14 | 2018-02-16 | 山西龙智能源化工有限公司 | A kind of voltage-stabilizing system of Utilization of PSA Relief Gas |
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