CN205208141U - Liquid storage -tank pressure control system - Google Patents
Liquid storage -tank pressure control system Download PDFInfo
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- CN205208141U CN205208141U CN201521043110.2U CN201521043110U CN205208141U CN 205208141 U CN205208141 U CN 205208141U CN 201521043110 U CN201521043110 U CN 201521043110U CN 205208141 U CN205208141 U CN 205208141U
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Abstract
The utility model relates to a liquid storage -tank pressure control system. Including the pressure increasing system and the pressure release system that are connected with the liquid storage tank respectively, pressure increasing system is including stepping up the pipeline, step up to be provided with on the pipeline and be used for the pneumatolytic gasification booster of liquid, it still is provided with the feed liquor control valve on the pipeline to step up, the pressure release system includes the pressure release pipeline, be provided with the exhaust control valve on the pressure release pipeline, still be provided with the pressure sensor who measures liquid storage tank internal pressure on the liquid storage tank, feed liquor control valve, exhaust control valve link to each other with the controller respectively, controller control feed liquor control valve, exhaust control valve break -make. The utility model discloses in break -make through controller control feed liquor control valve and exhaust control valve, realize automatic stepping up or the pressure release, this system has reduced the number of times that operating personnel removed device field operation, makes operating personnel be in among the safe operational environment.
Description
Technical field
The utility model relates to Pressure Control Technology field, particularly relates to a kind of wet tank control pressurer system.
Background technique
Empty point is utilize each component physical property in air different, adopt the methods such as cryogenic refrigeration, absorption, UF membrane from air, isolate oxygen, nitrogen, or extract the process of the rare gas such as helium, argon gas simultaneously, wide range of services is in chemical industry, metallurgy, the industry such as coloured.And empty point wet tank is the key equipment of empty point standby system, assurance device stable operation and process burst accident in play an important role, as can supplement in time when air separation facility stops because of device stop transport cause nitrogen supply (NS) deficiency problem, provide fire-fighting nitrogen, replace purging etc.But due to impacts such as the fluctuation of system gas consumption, ambient air temperatures, wet tank liquid level is in continuous change, and wet tank internal pressure is also in continuous change.Therefore, in order to meet the continuous rearrange liquids pressure of storage tank of system gas requirement needs.
Generally, wet tank boosting is after flowing into bottom by liquid boosting vaporizer is converted into gas, then enters wet tank through manual tune boost pressure regulation valve and carry out adherence pressure.Boost pressure regulation valve needs different according to wet tank pressure set points and adjusts valve opening.In addition, when wet tank pressure is higher, manually adjusting pressure release valve is needed to carry out emptying to maintain liquid tank internal pressure within the pressure range of setting.
But existing wet tank Stress control Problems existing is: wet tank pressure can not realize automatic boosting, pressure release, the frequent auto levelizer scene of operator is needed to operate, add handling time, because liquid tank internal pressure is comparatively large, once occur that leakage can cause casualties.
Model utility content
The purpose of this utility model is to propose a kind of wet tank control pressurer system, can automatically control wet tank releasing pressure automatically or boosting, does not need the frequent auto levelizer scene of operator to operate.For reaching this object, the utility model by the following technical solutions:
A kind of wet tank control pressurer system, comprises the booster system and pressure relief system that are connected with wet tank respectively,
Described booster system comprises boosting pipeline, described boosting pipeline is provided with in order to the gasification pressurization device by liquid gasification, described boosting pipeline is also provided with liquid inlet control valve;
Described pressure relief system comprises relief pipeline, gas exhausting valve on described relief pipeline;
Described wet tank is also provided with the pressure transducer measuring wet tank internal pressure;
Described liquid inlet control valve, gas exhausting valve are connected with controller respectively, and described controller controls liquid inlet control valve, gas exhausting valve break-make.
As preferably, described boosting pipeline liquid feeding end is connected with bottom wet tank, and outlet side, described boosting pipe road is connected with wet tank top.
As preferably, described boosting pipeline is also arranged feed liquor cut-off valve and gas phase cut-off valve; Described gas phase cut-off valve and feed liquor cut-off valve lay respectively on the pipeline at gasification pressurization device two ends.
As preferably, described feed liquor cut-off valve is positioned on the pipeline at liquid inlet control valve two ends, and described feed liquor cut-off valve, liquid inlet control valve place pipeline are also parallel with feed liquor bypass valve.
As preferably, described relief pipeline is also provided with safety valve, described gas exhausting valve two ends pipeline is connected to exhaust cut-off valve, and the pipeline at described gas exhausting valve, exhaust cut-off valve place is also parallel with exhaust by-pass valve.
As preferably, be also provided with between described pressure transducer and controller and PIC control module, described PIC control module in order to pressure signal transmission that pressure transducer is gathered to controller.
As preferably, described controller is PLC.
By arranging liquid inlet control valve on boosting pipeline in the utility model, relief pipeline arranges gas exhausting valve, and force value is passed to controller by the pressure in pressure transducer Real-Time Monitoring wet tank, controller controls the break-make of liquid inlet control valve or gas exhausting valve again to realize boosting or pressure release, the system reduces the number of times that operator remove device execute-in-place, operator are in safe working environment.
Gas phase cut-off valve and feed liquor cut-off valve are arranged on the pipeline at gasification pressurization device two ends respectively, can be off pressurized machine descendant of breaking down, and conveniently overhaul gasification pressurization device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wet tank control pressurer system that the utility model provides.
In figure:
1, wet tank; 21, boost pipeline; 22, gasification pressurization device; 23, liquid inlet control valve; 24, gas phase cut-off valve; 25, feed liquor cut-off valve; 26, feed liquor bypass valve; 31, relief pipeline; 32, safety valve; 33, cut-off valve is vented; 34, gas exhausting valve; 35, exhaust by-pass valve; 4, PIC control module; 5, controller.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, further illustrate the technical solution of the utility model below in conjunction with accompanying drawing by embodiment.
Embodiment 1
As shown in Figure 1, the utility model provides a kind of wet tank control pressurer system, comprise the booster system and pressure relief system that are connected with wet tank 1 respectively, wherein booster system is used for boosting to wet tank 1 inside when wet tank 1 internal pressure is less than predetermined value, depressurizing system is used for the inner step-down of wet tank 1 when wet tank 1 internal pressure is greater than predetermined value, wherein:
Booster system comprises boosting pipeline 21, and boosting pipeline 21 is provided with in order to the gasification pressurization device 22 by liquid gasification, and boosting pipeline 21 is also respectively arranged with liquid inlet control valve 23;
Pressure relief system comprises relief pipeline 31, and described relief pipeline 31 is provided with gas exhausting valve 34;
Wet tank 1 is also provided with the pressure transducer measuring wet tank internal pressure;
Liquid inlet control valve 23, gas exhausting valve 34 are connected with controller 5 respectively, and described controller 5 controls liquid inlet control valve 23, gas exhausting valve 34 break-make.
In the present embodiment, the wet tank internal pressure value recorded is passed to controller 5 by pressure transducer, controller 5 by scheduled pressure value compared with the force value of pressure transducer transmission, when the force value of pressure transducer transmission is less than scheduled pressure value, controller 5 controls liquid inlet control valve 23 and is communicated with, the liquid in wet tank 1 is made to enter in gasification pressurization device 22 through liquid inlet control valve 23, liquid gasification enters in wet tank 1 through gas phase cut-off valve by gasification pressurization device 22, to increase the pressure in wet tank 1, when the pressure in wet tank 1 is identical with the scheduled pressure value in controller, controller 5 controls liquid inlet control valve and disconnects, when the force value of pressure transducer transmission is greater than scheduled pressure value, controller 5 controls gas exhausting valve 34 and is communicated with, and is discharged by the portion gas in wet tank, when the pressure in wet tank 1 is identical with the scheduled pressure value in controller 5, controller 5 controls gas exhausting valve and disconnects.
Controlled the break-make of liquid inlet control valve, gas exhausting valve in the present embodiment by controller, achieve the automatic boosting pressure release of control pressurer system, effectively reduce the number of times that operator go to device scene, improve the safety of operator.
Embodiment 2
Present embodiments provide a kind of control pressurer system for controlling wet tank pressure, comprise the booster system and pressure relief system that are connected with wet tank 1 respectively, pipeline 21 liquid feeding end that wherein boosts is connected with bottom wet tank 1, boosting pipeline 21 outlet side is connected with wet tank 1 top, wet tank 1 is also provided with the pressure transducer measuring wet tank internal pressure.
Booster system comprises boosting pipeline 21, boosting pipeline 21 is provided with in order to the gasification pressurization device 22 by liquid gasification, liquid inlet control valve 23; Boosting pipeline 21 is also provided with feed liquor cut-off valve 25 and gas phase cut-off valve 24, and gas phase cut-off valve 24 and feed liquor cut-off valve 25 lay respectively on the pipeline at gasification pressurization device 22 two ends, the pipeline at liquid inlet control valve 23 two ends is respectively arranged with feed liquor cut-off valve 25, and liquid inlet control valve 23 and the pipeline at feed liquor cut-off valve 25 place are also parallel with feed liquor bypass valve 26, feed liquor bypass valve 26 is boosting standby valve, and feed liquor bypass valve 26 can substitute liquid inlet control valve 23 to realize the normal work of booster system when liquid inlet control valve 23 breaks down; Liquid inlet control valve 23 two ends pipeline arranges feed liquor cut-off valve 25, liquid inlet control valve 34 can be facilitated to overhaul, change.
Pressure relief system comprises relief pipeline 31, relief pipeline 31 is provided with safety valve 32, exhaust cut-off valve 33 and gas exhausting valve 34; When wet tank superpressure, the pressure release in time of safety valve 32 energy, fully ensures device security.Safety valve 32 matches with gas exhausting valve 34, can realize quick pressure releasing.The pipeline at wherein gas exhausting valve 34 two ends is respectively arranged with exhaust cut-off valve 33; Gas exhausting valve 34 two ends pipeline is connected to exhaust cut-off valve 33, and the pipeline at gas exhausting valve 34, exhaust cut-off valve 33 place is also parallel with exhaust by-pass valve 35.Exhaust by-pass valve 35 is step-down service valve, when gas exhausting valve 34 breaks down, can artificially regulate exhaust by-pass valve 35 break-make normally to work to make pressure relief system.Gas exhausting valve 34 two ends arrange exhaust cut-off valve 33, overhaul with easy to exhaust control valve 34, change.
Liquid inlet control valve 23, gas exhausting valve 34 are connected with controller 5 respectively, and be also provided with between pressure transducer and controller 5 and PIC control module 4, the I/O interface of PIC control module 4 is for the pressure signal that receives pressure transducer and gather and by this pressure signal transmission to controller, controller 5 controls liquid inlet control valve 23, gas exhausting valve 34 break-make by carrying out contrast with preset pressure value.
Controller 5 is PLC, can also be PID controller in other embodiments.
Pipeline 21 outlet side of boosting in the present embodiment is connected with wet tank 1 top, wet tank 1 is also provided with the pressure transducer measuring wet tank internal pressure, this Placement can make the pressure release of wet tank rapid pressure, relief pipeline arranges safety valve simultaneously and can assist the timely pressure release of pressure relief system, fully ensure device security.
Note, above display and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not by the restriction of above-mentioned mode of execution; what describe in above-mentioned mode of execution and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall within the scope of claimed the utility model, and claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. a wet tank control pressurer system, comprises the booster system and pressure relief system that are connected with wet tank (1) respectively, it is characterized in that,
Described booster system comprises boosting pipeline (21), described boosting pipeline (21) is provided with in order to the gasification pressurization device (22) by liquid gasification, described boosting pipeline (21) is also provided with liquid inlet control valve (23);
Described pressure relief system comprises relief pipeline (31), described relief pipeline (31) is provided with gas exhausting valve (34);
Described wet tank (1) is also provided with the pressure transducer measuring wet tank internal pressure;
Described liquid inlet control valve (23), gas exhausting valve (34) are connected with controller (5) respectively, and described controller (5) controls liquid inlet control valve (23), gas exhausting valve (34) break-make.
2. wet tank control pressurer system according to claim 1, it is characterized in that, described boosting pipeline (21) liquid feeding end is connected with wet tank (1) bottom, and described boosting pipeline (21) outlet side is connected with wet tank (1) top.
3. wet tank control pressurer system according to claim 2, it is characterized in that, described boosting pipeline (21) is also provided with boosting cut-off valve, and described boosting cut-off valve comprises feed liquor cut-off valve (25) and gas phase cut-off valve (24); Described gas phase cut-off valve (24) and feed liquor cut-off valve (25) lay respectively on the pipeline at gasification pressurization device (22) two ends.
4. wet tank control pressurer system according to claim 3, it is characterized in that, described feed liquor cut-off valve (25) is positioned on the pipeline at liquid inlet control valve (23) two ends, and described feed liquor cut-off valve (25), liquid inlet control valve (23) place pipeline are also parallel with feed liquor bypass valve (26).
5. wet tank control pressurer system according to claim 1, it is characterized in that, described relief pipeline (31) is also provided with safety valve (32), described gas exhausting valve (34) two ends pipeline is connected to exhaust cut-off valve (33), and the pipeline at described gas exhausting valve (34), exhaust cut-off valve (33) place is also parallel with exhaust by-pass valve (35).
6. wet tank control pressurer system according to claim 1, it is characterized in that, also be provided with between described pressure transducer and controller (5) and PIC control module (4), described PIC control module (4) in order to pressure signal transmission that pressure transducer is gathered to controller (5).
7. wet tank control pressurer system according to claim 6, is characterized in that, described controller (5) is PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043110.2U CN205208141U (en) | 2015-12-15 | 2015-12-15 | Liquid storage -tank pressure control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043110.2U CN205208141U (en) | 2015-12-15 | 2015-12-15 | Liquid storage -tank pressure control system |
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| CN205208141U true CN205208141U (en) | 2016-05-04 |
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| CN201521043110.2U Active CN205208141U (en) | 2015-12-15 | 2015-12-15 | Liquid storage -tank pressure control system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507934A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | Built-in liquefied medium self-expansion type foam fire fighting equipment |
| CN110507930A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | Built-in liquefied medium self-expansion type foam fire fighting system |
| CN110507933A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | Liquefied medium self-expansion type foam production method and foam fire-fighting method |
| CN110507931A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | External liquefied medium self-expansion type foam fire fighting system |
| CN110507932A (en) * | 2018-05-22 | 2019-11-29 | 中国石油化工股份有限公司 | External liquefied medium self-expansion type foam fire fighting equipment |
| CN112050073A (en) * | 2020-07-29 | 2020-12-08 | 邯郸钢铁集团有限责任公司 | Liquid storage tank pressurizing and depressurizing method |
| CN115405854A (en) * | 2022-08-25 | 2022-11-29 | 深圳中广核工程设计有限公司 | Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline |
-
2015
- 2015-12-15 CN CN201521043110.2U patent/CN205208141U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507934A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | Built-in liquefied medium self-expansion type foam fire fighting equipment |
| CN110507930A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | Built-in liquefied medium self-expansion type foam fire fighting system |
| CN110507933A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | Liquefied medium self-expansion type foam production method and foam fire-fighting method |
| CN110507931A (en) * | 2018-05-22 | 2019-11-29 | 青岛诺诚化学品安全科技有限公司 | External liquefied medium self-expansion type foam fire fighting system |
| CN110507932A (en) * | 2018-05-22 | 2019-11-29 | 中国石油化工股份有限公司 | External liquefied medium self-expansion type foam fire fighting equipment |
| CN112050073A (en) * | 2020-07-29 | 2020-12-08 | 邯郸钢铁集团有限责任公司 | Liquid storage tank pressurizing and depressurizing method |
| CN115405854A (en) * | 2022-08-25 | 2022-11-29 | 深圳中广核工程设计有限公司 | Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline |
| CN115405854B (en) * | 2022-08-25 | 2024-05-10 | 深圳中广核工程设计有限公司 | System and method for controlling pressure of liquid nitrogen storage tank and nitrogen distribution pipeline |
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