CN204918523U - Hydrogen sulfide absorption tower liquid level interlock system in low temperature methanol washing system - Google Patents
Hydrogen sulfide absorption tower liquid level interlock system in low temperature methanol washing system Download PDFInfo
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- CN204918523U CN204918523U CN201520521853.XU CN201520521853U CN204918523U CN 204918523 U CN204918523 U CN 204918523U CN 201520521853 U CN201520521853 U CN 201520521853U CN 204918523 U CN204918523 U CN 204918523U
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- hydrogen sulfide
- absorption tower
- sulfide absorption
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Abstract
The utility model relates to a hydrogen sulfide absorption tower liquid level interlock system (b) in (b) methyl alcohol system of washing of safe and reliable, the low interlocking value LL=250mm (71%) of hydrogen sulfide absorption tower liquid level, the interlocking action is for closing one section valve LV -1110004 of hydrogen sulfide absorption tower devulcanization hydrogen concentration tower. The utility model discloses prevent to scurry at the abnormal or start -stop vehicle -hour high pressure of system the emergence of low pressure phenomenon effectively for produce safe and reliable more.
Description
Technical field
The utility model relates to chemical technique interlocking gear, specifically a kind of safe and reliable hydrogen sulfide absorption tower level chain system.
Background technology
The design on conventional vulcanized hydrogen absorption tower, operator regulate hydrogen sulfide absorption tower devulcanization hydrogen upgrading tower one section of valve LV-1110004 aperture according to level condition, but when hydrogen sulfide absorption tower liquid level continues to reduce, high pressure can occur and alter low pressure event, impact is normal produces, and even causes major accident.
Summary of the invention
The purpose of this utility model is to provide hydrogen sulfide absorption tower level chain system in a kind of rectisol system, the generation of high pressure string low pressure event when being intended to anti-locking system abnormal or start-stop car.
The utility model adopts following technical scheme to realize:
Hydrogen sulfide absorption tower level chain system in a kind of safe and reliable rectisol system, comprise hydrogen sulfide absorption tower and hydrogen sulphide concentration tower, the top of described hydrogen sulfide absorption tower connects purified gas pipeline, connects sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string bottom it; The top of described hydrogen sulphide concentration tower connects discharge gas pipeline, connects sulfur-bearing methanol line bottom it; The bottom of described hydrogen sulfide absorption tower is separately installed with liquidometer gas phase root valve and liquidometer liquid phase root valve up and down, and the bottom of described hydrogen sulfide absorption tower is taken into account corresponding interlocking system with liquidometer liquid phase root valve to hydrogen sulfide absorption tower tower reactor liquid level by liquidometer gas phase root valve and is connected; The control end of control port and pneumatic adjusting valve that described hydrogen sulfide absorption tower tower reactor liquid level takes into account corresponding interlocking system is connected.
Above-mentioned hydrogen sulfide absorption tower tower reactor liquid level takes into account the model LSA1110032 of corresponding interlocking system, level chain value LL=250mm(71%), interlocking action is for closing hydrogen sulfide absorption tower devulcanization hydrogen upgrading tower one section of valve LV-1110004.During normal production, the low interlocking attonity of hydrogen sulfide absorption tower liquid level, when hydrogen sulfide absorption tower liquid level reaches low interlocking value LL=250mm(71%) time, interlocking action is opened, perform an action and close sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string variable valve (LV-1110004), efficiently avoid the generation that high pressure alters low pressure event, making to produce can the carrying out of normal safe.
After have employed technique scheme, when the utility model effectively can prevent or start-stop car abnormal in system, high pressure alters the generation of low pressure event, makes to produce more safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-hydrogen sulfide absorption tower, 2-hydrogen sulphide concentration tower, 3-purified gas pipeline, 4-sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string, 5-discharges gas pipeline, 6-sulfur-bearing methanol line, 7-hydrogen sulfide absorption tower tower reactor liquid level takes into account corresponding interlocking system, 8-pneumatic adjusting valve, 9-liquidometer gas phase root valve, 10-liquidometer liquid phase root valve.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
Hydrogen sulfide absorption tower level chain system in a kind of safe and reliable rectisol system, as shown in Figure 1, comprise hydrogen sulfide absorption tower 1 and hydrogen sulphide concentration tower 2, the top of described hydrogen sulfide absorption tower 1 connects purified gas pipeline 3, connects sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string 4 bottom it; The top of described hydrogen sulphide concentration tower 2 connects discharge gas pipeline 5, connects sulfur-bearing methanol line 6 bottom it; The bottom of described hydrogen sulfide absorption tower 1 is separately installed with liquidometer gas phase root valve 9 and liquidometer liquid phase root valve 10 up and down, and the bottom of described hydrogen sulfide absorption tower 1 is taken into account corresponding interlocking system 7 with liquidometer liquid phase root valve 10 to hydrogen sulfide absorption tower tower reactor liquid level by liquidometer gas phase root valve 9 and is connected; The control port that described hydrogen sulfide absorption tower tower reactor liquid level takes into account corresponding interlocking system 7 is connected with the control end of pneumatic adjusting valve 8.
Wherein, purified gas pipeline 3 nominal diameter DN500, pipeline grade 300K1; Sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string 4 nominal diameter DN300, pipeline grade 300K2; Discharge gas pipeline 5 nominal diameter DN800, pipeline grade 150E3; Sulfur-bearing methanol line 6 nominal diameter DN400, pipeline grade 150E3; Variable valve (LV-1110004) 8 specifications parameter: single-seat valve, valve dimension D N150, topworks is Pneumatic single-action form, valve body material 316, quantity 1.
During normal production, the low interlocking attonity of hydrogen sulfide absorption tower liquid level, when hydrogen sulfide absorption tower liquid level reaches low interlocking value LL=250mm(71%) time, interlocking action is opened, perform an action and close sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string variable valve (LV-1110004), efficiently avoid the generation that high pressure alters low pressure event, making to produce can the carrying out of normal safe.
In addition, as shown in Figure 1, the both sides described sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string 4 being positioned at pneumatic adjusting valve 8 are separately installed with common valve; Can be used for the maintenance isolation of pneumatic adjusting valve 8.
As shown in Figure 1, described sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string 4 is parallel with tap line, described tap line crosses over the common valve of pneumatic adjusting valve 8 and both sides thereof; Described tap line is provided with common valve; When liquid level locking system break down or regular maintenance time, the common valve of pneumatic adjusting valve 8 both sides can be closed, by tap line and common valve normal operation.
The utility model meets the control overflow of hydrogen sulfide absorption tower liquid level, meets the demand of client, has good application prospect.
The claimed scope of the utility model is not limited to above embodiment; to those skilled in the art; the utility model can have various deformation and change, all in design of the present utility model and any amendment, the improvement done within principle be equal to replacement and all should be included within protection domain of the present utility model.
Claims (4)
1. hydrogen sulfide absorption tower level chain system in a rectisol system, comprise hydrogen sulfide absorption tower (1) and hydrogen sulphide concentration tower (2), the top of described hydrogen sulfide absorption tower (1) connects purified gas pipeline (3), connects sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string (4) bottom it; The top of described hydrogen sulphide concentration tower (2) connects discharge gas pipeline (5), connects sulfur-bearing methanol line (6) bottom it; It is characterized in that: the bottom of described hydrogen sulfide absorption tower (1) is separately installed with liquidometer gas phase root valve (9) and liquidometer liquid phase root valve (10) up and down, the bottom of described hydrogen sulfide absorption tower (1) is taken into account corresponding interlocking system (7) with liquidometer liquid phase root valve (10) to hydrogen sulfide absorption tower tower reactor liquid level by liquidometer gas phase root valve (9) and is connected; The control port that described hydrogen sulfide absorption tower tower reactor liquid level takes into account corresponding interlocking system (7) is connected with the control end of pneumatic adjusting valve (8).
2. hydrogen sulfide absorption tower level chain system in rectisol system according to claim 1, is characterized in that: the both sides described sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string (4) being positioned at pneumatic adjusting valve (8) are separately installed with common valve.
3. hydrogen sulfide absorption tower level chain system in rectisol system according to claim 2, it is characterized in that: described sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string (4) is parallel with tap line, described tap line crosses over the common valve of pneumatic adjusting valve (98) and both sides thereof; Described tap line is provided with common valve.
4. hydrogen sulfide absorption tower level chain system in rectisol system according to claim 1, is characterized in that: the nominal diameter DN500 of described purified gas pipeline (3); The nominal diameter DN300 of described sulfur-bearing rich methanol devulcanization hydrogen upgrading tower pipe string (4); The nominal diameter DN800 of described discharge gas pipeline (5); The nominal diameter DN400 of described sulfur-bearing methanol line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521853.XU CN204918523U (en) | 2015-07-20 | 2015-07-20 | Hydrogen sulfide absorption tower liquid level interlock system in low temperature methanol washing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520521853.XU CN204918523U (en) | 2015-07-20 | 2015-07-20 | Hydrogen sulfide absorption tower liquid level interlock system in low temperature methanol washing system |
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| CN204918523U true CN204918523U (en) | 2015-12-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435586A (en) * | 2015-12-31 | 2016-03-30 | 西安长庆科技工程有限责任公司 | Liquid level control equipment and method for desulfurizing absorption tower of alcohol-amine desulfurization device |
| CN112443757A (en) * | 2020-10-28 | 2021-03-05 | 中石化宁波工程有限公司 | System and method for preventing high-pressure channeling and low-pressure channeling of methanol device |
-
2015
- 2015-07-20 CN CN201520521853.XU patent/CN204918523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435586A (en) * | 2015-12-31 | 2016-03-30 | 西安长庆科技工程有限责任公司 | Liquid level control equipment and method for desulfurizing absorption tower of alcohol-amine desulfurization device |
| CN112443757A (en) * | 2020-10-28 | 2021-03-05 | 中石化宁波工程有限公司 | System and method for preventing high-pressure channeling and low-pressure channeling of methanol device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210115 Granted publication date: 20151230 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230115 Granted publication date: 20151230 |