CN207254056U - A kind of phosphorus trichloride device for absorbing tail gas - Google Patents
A kind of phosphorus trichloride device for absorbing tail gas Download PDFInfo
- Publication number
- CN207254056U CN207254056U CN201721229639.2U CN201721229639U CN207254056U CN 207254056 U CN207254056 U CN 207254056U CN 201721229639 U CN201721229639 U CN 201721229639U CN 207254056 U CN207254056 U CN 207254056U
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- Prior art keywords
- phosphorus trichloride
- tail gas
- storage tank
- pipeline
- tank
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Abstract
The utility model discloses a kind of phosphorus trichloride device for absorbing tail gas, including phosphorus trichloride storage tank, surge tank and tail gas absorber, the phosphorus trichloride tank top side is connected by the pipeline equipped with unidirectional exhalation valve with surge tank, the surge tank is connected by pipeline with tail gas absorber, the tail gas absorber is supplied water by running water pipe, and outlet overflows pipeline is equipped with U-shaped water seal；Check-valves, direct-operated regulator and shut-off valve, the outer end connection nitrogen tube of shut-off valve are equipped with another lateral line of phosphorus trichloride tank top successively.The utility model is by setting nitrogen to protect pipeline; direct-operated regulator and unidirectional exhalation valve are installed, reduce the volatilization of phosphorus trichloride liquid phase, phosphorus trichloride tail gas is discharged only when storage tank is fed; ensure to suck the gas moisture-free in storage tank at the same time, avoid the corrosion of storage tank and pipeline；By setting easy phosphorus trichloride tail gas absorber to absorb poisonous gas, equipment cost is reduced, avoids troublesome operation.
Description
Technical field
Field of chemical equipment is the utility model is related to, is specially a kind of phosphorus trichloride device for absorbing tail gas.
Background technology
In existing phosphorus trichloride exhaust gas processing device, phosphorus trichloride tail gas is generally absorbed into+two-stage falling liquid film by water
Absorption+lye absorbs, and this method is usually used in handling the synthetically produced tail gas containing chlorine and chlorine hydride mixed gas of phosphorus trichloride, but
This method is not suitable for phosphorus trichloride storage tank vent gas treatment, the complete equipment higher price, cumbersome, it is necessary to regularly replace alkali
Liquid, in addition, phosphorus trichloride storage tank is in blowing, the air moisture content sucked in storage tank is difficult to control, time permanent storage tank and
Pipeline can be by a small amount of acid corrosion.Therefore, the volatilization of phosphorus trichloride poisonous gas should be reduced to the greatest extent, not only reduce loss of material, but also
It is good for the environment.
Now provide a kind of by setting nitrogen to protect pipeline, installation direct-operated regulator and unidirectional exhalation valve, reduction trichlorine
Change the volatilization of phosphorus liquid phase, phosphorus trichloride tail gas is discharged only when storage tank is fed, while ensure that the gas in suction storage tank is not aqueous
Point, avoid the corrosion of storage tank and pipeline；By setting easy phosphorus trichloride tail gas absorber to absorb poisonous gas, drop
Low equipment cost, avoids troublesome operation.
Utility model content
Technical problem to be solved in the utility model is to be directed to the above-mentioned state of the art, and provides a kind of new double pipeline
Filter.
Technical solution is used by the utility model solves above-mentioned technical problem：
A kind of phosphorus trichloride device for absorbing tail gas, including phosphorus trichloride storage tank, surge tank and tail gas absorber, the trichlorine
Change phosphorus tank top side to connect with surge tank by the pipeline equipped with unidirectional exhalation valve, the surge tank passes through pipeline and tail gas
Absorber connects, and the tail gas absorber is supplied water by running water pipe, and outlet overflows pipeline is equipped with U-shaped water seal；The tri-chlorination
Check-valves, direct-operated regulator and shut-off valve, the outer end connection nitrogen of shut-off valve are equipped with another lateral line of phosphorus tank top successively
Tracheae.
Further, the phosphorus trichloride tank bottom side is equipped with feed pipe and vomit pipe successively.
Further, liquid-level switch valve is equipped between feed pipe and the phosphorus trichloride storage tank.
Further, it is equipped with liquid level gauge outside the phosphorus trichloride Tank body.
Further, shut-off valve, direct-operated regulator and check-valves nominal diameter are DN25, and material is carbon steel, is relied on oneself
Formula regulating valve downstream pressure is set as 1.2KPa (G).
The beneficial effects of the utility model：The present apparatus installs direct-operated regulator and list by setting nitrogen to protect pipeline
To exhalation valve, the volatilization of liquid phase phosphorus trichloride is reduced, reduces material loss, avoids the sour of phosphorus trichloride storage tank and pipeline
Erosion；The built-in segmentation filler of phosphorus trichloride tail gas absorber and multiple nozzles, increase gas liquid interfacial area, hence it is evident that improve and absorb effect
Fruit, reduces equipment cost, avoids troublesome operation.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of the utility model device.
In figure：1- phosphorus trichloride storage tanks, 2- surge tanks, 3- tail gas absorbers, 4- feed pipes, 5- vomit pipes, 6- liquid levels are opened
Pass valve, 7-U type water seals, 8- running water pipes, 11- nitrogen tubes, 12- shut-off valves, 13- direct-operated regulators, 14- check-valves, 15- are mono-
To exhalation valve, 16- liquid level gauges.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of phosphorus trichloride device for absorbing tail gas, including phosphorus trichloride storage tank 1, surge tank 2 and tail gas are inhaled
Device 3 is received, 1 top side of phosphorus trichloride storage tank is connected by the pipeline equipped with unidirectional exhalation valve 15 and surge tank 2, described slow
Rush tank 2 to connect by pipeline and tail gas absorber 3, the tail gas absorber 3 is supplied water by running water pipe 8, outlet overflows pipeline
Equipped with U-shaped water seal 7；Check-valves 14, direct-operated regulator 13 are equipped with successively on another lateral line in the top of phosphorus trichloride storage tank 1
With shut-off valve 12, the outer end connection nitrogen tube 11 of shut-off valve 12,1 bottom side of phosphorus trichloride storage tank is equipped with 4 He of feed pipe successively
Vomit pipe 5, is equipped with liquid-level switch valve 6, liquid is equipped with outside 1 tank body of phosphorus trichloride storage tank between feed pipe 4 and phosphorus trichloride storage tank 1
Position meter 16.
Operating process：When opening 4 upper ball valve of feed pipe, liquid-level switch valve 6 are fed to phosphorus trichloride storage tank 1, tank internal pressure
Power raises, and when reaching the release pressure that unidirectional exhalation valve 15 is set, which outwards breathes out phosphorus trichloride tail gas automatically, finally into
Enter tail gas absorber 3 to fully absorb.When the ball valve 1 on vomit pipe 5 is opened, during phosphorus trichloride 1 blowing of storage tank, pressure inside the tank drop
Low, when reaching the pressure of the setting of direct-operated regulator 13, which automatically opens up, and nitrogen is supplemented into tank, keeps pressure inside the tank
It is constant, reduce the volatilization of phosphorus trichloride liquid phase.
Above content is only to the utility model example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or substitutes in a similar way, without departing from practical new
The design of type surmounts scope defined in the claims, all should belong to the protection range of the utility model.
Claims (4)
1. a kind of phosphorus trichloride device for absorbing tail gas, including phosphorus trichloride storage tank (1), surge tank (2) and tail gas absorber (3),
It is characterized in that, phosphorus trichloride storage tank (1) top side passes through the pipeline equipped with unidirectional exhalation valve (15) and surge tank (2)
Connection, the surge tank (2) are connected by pipeline and tail gas absorber (3), and the tail gas absorber (3) passes through running water pipe
(8) supply water, outlet overflows pipeline is equipped with U-shaped water seal (7)；Set successively on another lateral line at the top of the phosphorus trichloride storage tank (1)
There are check-valves (14), direct-operated regulator (13) and shut-off valve (12), the outer end connection nitrogen tube (11) of shut-off valve (12).
A kind of 2. phosphorus trichloride device for absorbing tail gas according to claim 1, it is characterised in that the phosphorus trichloride storage tank
(1) bottom side is equipped with feed pipe (4) and vomit pipe (5) successively.
A kind of 3. phosphorus trichloride device for absorbing tail gas according to claim 2, it is characterised in that the feed pipe (4) and
Liquid-level switch valve (6) is equipped between phosphorus trichloride storage tank (1).
A kind of 4. phosphorus trichloride device for absorbing tail gas according to claim 1, it is characterised in that the phosphorus trichloride storage tank
(1) it is equipped with liquid level gauge (16) outside tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721229639.2U CN207254056U (en) | 2017-09-25 | 2017-09-25 | A kind of phosphorus trichloride device for absorbing tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721229639.2U CN207254056U (en) | 2017-09-25 | 2017-09-25 | A kind of phosphorus trichloride device for absorbing tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207254056U true CN207254056U (en) | 2018-04-20 |
Family
ID=61918841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721229639.2U Active CN207254056U (en) | 2017-09-25 | 2017-09-25 | A kind of phosphorus trichloride device for absorbing tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207254056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931503A (en) * | 2019-04-19 | 2019-06-25 | 山东科源化工有限公司 | A kind of autonomous type nitrogen storage tank nitrogen protection device |
-
2017
- 2017-09-25 CN CN201721229639.2U patent/CN207254056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931503A (en) * | 2019-04-19 | 2019-06-25 | 山东科源化工有限公司 | A kind of autonomous type nitrogen storage tank nitrogen protection device |
| CN109931503B (en) * | 2019-04-19 | 2024-04-26 | 山东科源化工有限公司 | Autonomous nitrogen protection device for nitrogen storage tank |
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