CN203545943U - Backflow preventing device for desulfurization and oxygen injection of naphtha - Google Patents
Backflow preventing device for desulfurization and oxygen injection of naphtha Download PDFInfo
- Publication number
- CN203545943U CN203545943U CN201320644741.4U CN201320644741U CN203545943U CN 203545943 U CN203545943 U CN 203545943U CN 201320644741 U CN201320644741 U CN 201320644741U CN 203545943 U CN203545943 U CN 203545943U
- Authority
- CN
- China
- Prior art keywords
- tank
- warning device
- oxygen
- pipeline
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a backflow preventing device for desulfurization and oxygen injection of naphtha. The backflow preventing device comprises an oxygen storage tank and a desulfurization tower which are communicated by a pipeline, wherein the pipeline at the rear end of the oxygen storage tank is connected with a flow meter and a check valve; a backflow preventing device is arranged between the oxygen storage tank and the flow meter and comprises a buffering tank, an electromagnetic valve and an alarming device; the buffering tank is connected between the oxygen storage tank and the desulfurization tower in series; the electromagnetic valve is arranged on the pipeline between the buffering tank and the desulfurization tower; a detection probe of the alarming device is arranged in the buffering tank; the alarming device is provided with an electromagnetic-valve control line; the electromagnetic valve is electrically connected with an alarming-device control line; the opening of the electromagnetic valve is controlled by a circuit; the buffering tank is provided with a liquid discharging valve. The backflow preventing device disclosed by the utility model is used for desulfurization and oxygen injection of the naphtha, and has the advantages that when the equipment fails to cause reduction of the pressure in the oxygen storage tank and the buffering tank or the liquid is accumulated in the tank, the alarming device can be started rapidly, and sends out a sound-light alarming signal and an electromagnetic-valve closing signal to cut off an oil backflow path, so that the use is safe.
Description
Technical field
The utility model belongs to naphtha desulphurization unit technical field, especially a kind of desulfurization note oxygen device that can prevent liquid return in thionizer.
Background technology
Existing naphtha desulfurization equipment comprises the oxygen container and the thionizer that by pipeline, are connected, is provided with under meter and vacuum breaker between oxygen container and thionizer, and oxygen enters thionizer through under meter and vacuum breaker from oxygen container out.Owing to being subject to the impact of oxygen generating plant, the pressure in oxygen container is not constant inconvenience, when particularly oxygen generating plant breaks down, oxygen container pressure can decline rapidly, when the pressure drop in oxygen container is during to certain value, vacuum breaker plays a role, to stop the backflow of oil product in thionizer.If but vacuum breaker be also can not cut out or react insensitive because of fault time, the oil product in thionizer will be back in oxygen container, causes security incident.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of naphtha desulfurization that can prevent that in thionizer, oil product is back in oxygen container and notes oxygen back-flow preventer.
For solving the problems of the technologies described above, the utility model comprises by the oxygen container of pipeline communication and thionizer, on the pipeline of described oxygen container rear end, be connected under meter and vacuum breaker, its constructional feature is to be provided with back-flow preventer between described oxygen container and under meter, described back-flow preventer comprises surge tank, magnetic valve and warning device, surge tank is serially connected between oxygen container and thionizer, magnetic valve is located on the pipeline between surge tank and thionizer, the detection probe of warning device is located in surge tank tank, warning device is provided with solenoid control circuit, magnetic valve is electrically connected with the control circuit of warning device, the unlatching of magnetic valve is subject to this circuit control, surge tank is provided with tapping valve.
Preferably the detection probe of described warning device comprises Liquid level test probe and pressure sensitive probe, and described warning device is combined aural and visual alarm.
The beneficial effects of the utility model are: the pipeline of oxygen container of the present utility model rear end is provided with back-flow preventer, and this back-flow preventer is comprised of surge tank, magnetic valve and warning device.When oxygen container pressure fast-descending, or because oxygen container pressure fluctuates, and vacuum breaker is because of fault or react insensitive and do not close in time, while causing the interior oil product of thionizer to be back in surge tank, the alarm detection probe being arranged in surge tank will send induced signal, and warning device is received signal and opened rapidly and send guard signal, and shut electromagnetic valve switch cuts off the backflow approach of oil product simultaneously, thereby effectively prevent that in thionizer, oil product is back in oxygen container, use safety.Surge tank is provided with tapping valve, can get rid of in time hydrops in tank, has reduced use potential safety hazard.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the utility model overall schematic.
Embodiment
With reference to accompanying drawing, this naphtha desulfurization note oxygen back-flow preventer comprises the oxygen container 1, surge tank 2 and the thionizer 7 that by pipeline 8, are communicated with, is connected to successively magnetic valve 3, under meter 4 and vacuum breaker 6 on the pipeline 8 between surge tank 2 and thionizer 7.On surge tank 2, be connected to warning device 5, the detection probe of warning device 5 is located in surge tank 2, the detection probe of warning device 5 comprises Liquid level test probe and pressure sensitive probe, when surge tank 2 internal drops are low or tank in while having waste liquid, detection probe is all sent induced signal, Liquid level test probe and pressure sensitive probe are electrically connected with warning device 5, warning device 5 is provided with magnetic valve 3 control circuits, magnetic valve 3 is electrically connected with the control circuit 9 of warning device 5, the controlled circuit control of unlatching of magnetic valve 3, warning device 5 is combined aural and visual alarm.On the bottom of surge tank 2, be provided with tapping valve 21, be convenient to get rid of in time waste liquid in tank.
When oxygen generating plant breaks down, oxygen container and surge tank internal pressure decline, or while having hydrops in tank, warning device 5 can start rapidly concurrent visual alarm and magnetic valve 3 shutdown signals of speaking, magnetic valve 3 can cut off oil product return flow path in time, forms twice safety switch together with vacuum breaker 6.
Claims (2)
1. a naphtha desulfurization note oxygen back-flow preventer, comprise the oxygen container (1) and the thionizer (7) that by pipeline (8), are communicated with, on the pipeline (8) of described oxygen container (1) rear end, be connected under meter (4) and vacuum breaker (6), it is characterized in that being provided with back-flow preventer between described oxygen container (1) and under meter (4), described back-flow preventer comprises surge tank (2), magnetic valve (3) and warning device (5), surge tank (2) is serially connected between oxygen container (1) and thionizer (7), magnetic valve (3) is located on the pipeline (8) between surge tank (2) and thionizer (7), the detection probe of warning device (5) is located in surge tank (2) tank, warning device (5) is provided with magnetic valve (3) control circuit, magnetic valve (3) is electrically connected with the control circuit of warning device (5), the unlatching of magnetic valve (3) is subject to this circuit control, surge tank (2) is provided with tapping valve (21).
2. according to naphtha desulfurization note oxygen back-flow preventer claimed in claim 1, it is characterized in that the detection probe of described warning device (5) comprises Liquid level test probe and pressure sensitive probe, described warning device (5) is combined aural and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644741.4U CN203545943U (en) | 2013-10-19 | 2013-10-19 | Backflow preventing device for desulfurization and oxygen injection of naphtha |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644741.4U CN203545943U (en) | 2013-10-19 | 2013-10-19 | Backflow preventing device for desulfurization and oxygen injection of naphtha |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545943U true CN203545943U (en) | 2014-04-16 |
Family
ID=50464089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320644741.4U Expired - Fee Related CN203545943U (en) | 2013-10-19 | 2013-10-19 | Backflow preventing device for desulfurization and oxygen injection of naphtha |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152455A (en) * | 2018-03-27 | 2019-08-23 | 北京欧美中科学技术研究院 | A kind of high sulfur naphtha desulfurization back-flow preventer |
-
2013
- 2013-10-19 CN CN201320644741.4U patent/CN203545943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152455A (en) * | 2018-03-27 | 2019-08-23 | 北京欧美中科学技术研究院 | A kind of high sulfur naphtha desulfurization back-flow preventer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102728016A (en) | Oil-discharge nitrogen-injection fire extinguishing system | |
| CN104565816A (en) | Air compressor air storage tank capable of discharging water automatically | |
| CN203545943U (en) | Backflow preventing device for desulfurization and oxygen injection of naphtha | |
| US8395523B2 (en) | Method and system for preventing fuel theft | |
| CN203741383U (en) | Cooling water control system | |
| CN106870942B (en) | Pipe pressure type explosion-proof valve | |
| CN202020811U (en) | Oil-drainage nitrogen-filling fire-extinguishing system | |
| CN206830157U (en) | High-pressure separator | |
| CN104757881A (en) | Intelligent leakage protection device of water dispenser | |
| CN204434265U (en) | Liquid material tank car discharging protection system | |
| CN202140311U (en) | Automatic alarming protective device for preventing screw oil delivery pump from being evacuated and dry-grinding | |
| CN102657903B (en) | A kind of blood purification bubble monitoring system | |
| CN203253673U (en) | Chip chemical cleaning control system | |
| CN204922119U (en) | Safety valve | |
| CN102477902B (en) | Alarm monitoring device for anti-explosion power machine pneumatic protection system | |
| CN105485522B (en) | A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device | |
| CN105181057A (en) | Fuel spilling protection device for fuel consumption meter | |
| CN204226177U (en) | A kind of interlock control system of lubricant oil oil pump of feed water pump | |
| CN204165622U (en) | Liquid level detection device and battery automatic filling machine | |
| CN203355717U (en) | Safe type hydrogenation reaction equipment | |
| CN202358550U (en) | Manhole protecting device for ground-buried storage tank of gas station | |
| CN201565018U (en) | Oil-drainage nitrogen-filling fire extinguishing apparatus for oil immersed transformer | |
| CN207906860U (en) | Nitrogen system | |
| CN209180159U (en) | A kind of hydraulic horizontal-pushing oil return protective device | |
| CN202227396U (en) | Electrically-controlled gas stopping protection device in gas jacking fire fighting water supply equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141019 |
|
| EXPY | Termination of patent right or utility model |