CN205771036U - Modified model hydrochloric acid reservoir apparatus - Google Patents
Modified model hydrochloric acid reservoir apparatus Download PDFInfo
- Publication number
- CN205771036U CN205771036U CN201620512457.5U CN201620512457U CN205771036U CN 205771036 U CN205771036 U CN 205771036U CN 201620512457 U CN201620512457 U CN 201620512457U CN 205771036 U CN205771036 U CN 205771036U
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- Prior art keywords
- hydrochloric acid
- tank
- acid tank
- pipeline
- modified model
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Abstract
A kind of modified model hydrochloric acid reservoir apparatus is provided, there is hydrochloric acid tank, described hydrochloric acid tank top is provided with outlet line, hydrochloric acid feeding line, pressure monitor facility and noble gas ftercompction pipeline, and described hydrochloric acid tank is connected with flashback tank by outlet line, and the outlet of described flashback tank arranges drain valve；Described hydrochloric acid tank is connected with concentrated hydrochloric acid absorption system by hydrochloric acid feeding line；Described hydrochloric acid tank is connected with inert gas source by noble gas ftercompction pipeline, and described indifferent gas ftercompction pipeline is provided with the regulation valve of automatic inflating device；Connected by pipeline and hydrochloric acid outward transport circulating pump bottom described hydrochloric acid tank.This utility model by the way of being passed through noble gas continuously and increasing flashback tank to hydrochloric acid tank, the hydrogen stored in hydrochloric acid tank is driven out of, keep the inertia positive pressure environment in hydrochloric acid tank, avoid the generation of potential safety hazard during operation, the problem effectively solving frequent operation flashback tank when hydrochloric acid is sent outside and cause water resource waste, and reduction work load, prevent the hydrogen chloride gas effusion after hydrochloric acid volatilization from polluting environment.
Description
Technical field
This utility model belongs to polysilicon manufacturing technology field, is specifically related to a kind of modified model hydrochloric acid reservoir apparatus.
Background technology
In polysilicon production process, utilize the reduction of CDI technology separating-purifying and convert tail gas out,
Hydrogen chloride in tail gas, hydrogen and chlorosilane are separated and return system respectively recycles again.Just
In the case of Chang, separate the mixed gas that generation purity is the hydrogen chloride of 99% and the chlorosilane of 1% and hydrogen and send
Use as raw material to TCS synthesis unit, but due to technology and equipment, especially close as TCS
Becoming when breaking down, the high-purity hydrogen chloride of this part generally produces hydrochloric acid by the way of water absorption and supplies
Internal recycling or take-away.Owing to high-purity hydrogen chloride gas contains chlorosilane and the hydrogen of 1%, may cause
During washing enrichment absorbing hydrogen chloride, hydrogen is accumulated in salt acid storage tank for a long time, and the operation of salt acid storage tank is deposited
In potential safety hazard, meanwhile, when sending the hydrochloric acid of storage outside, for preventing hydrochloric acid from causing shape in storage tank when sending outside
Become negative pressure to inhale and suppress, the water in salt acid storage tank flashback tank need to be vented, cause the wasting of resources, increase work
Load, it is therefore necessary to propose to improve.
Utility model content
This utility model solves the technical problem that: provide a kind of modified model hydrochloric acid reservoir apparatus, by salt
Acid storage tank is passed through noble gas continuously and increases the mode of flashback tank, is caught up with the hydrogen stored in hydrochloric acid tank
Go out, keep the inertia positive pressure environment in hydrochloric acid tank, it is to avoid the generation of potential safety hazard during operation, effectively
Solve frequent operation flashback tank when hydrochloric acid is sent outside and cause the problem of water resource waste, and it is negative to reduce work
Lotus, prevents the hydrogen chloride gas effusion after hydrochloric acid volatilization from polluting environment.
The technical solution adopted in the utility model: modified model hydrochloric acid reservoir apparatus, has hydrochloric acid tank, described
Hydrochloric acid tank top is provided with outlet line, hydrochloric acid feeding line, pressure monitor facility and noble gas ftercompction
Pipeline, described hydrochloric acid tank is connected with flashback tank by outlet line, and the outlet of described flashback tank arranges discharge
Valve；Described hydrochloric acid tank is connected with concentrated hydrochloric acid absorption system by hydrochloric acid feeding line；Described hydrochloric acid tank
Being connected with inert gas source by noble gas ftercompction pipeline, described indifferent gas ftercompction pipeline is provided with automatically
The regulation valve of QI invigorating；Connected by pipeline and hydrochloric acid outward transport circulating pump bottom described hydrochloric acid tank.
Further, described inert gas source is source nitrogen.
Further, it is provided with liquidometer in described hydrochloric acid tank.
Further, described drain valve is anticorrosion acid valve.
This utility model advantage compared with prior art:
1, use hydrochloric acid tank to fill into the mode of noble gas continuously, retain in hydrochloric acid tank can be replaced
Hydrogen, it is ensured that the environment of inertia malleation in hydrochloric acid tank, it is to avoid the generation of accident during operation；
2, the mode of hydrochloric acid tank noble gas QI invigorating is used, must unwatering when hydrochloric acid can be avoided to send outside
The operating defect of joint sealing water, reduces water resource waste, reduces work load；
3, by regulating the connection of valve on the pressure monitor facility at hydrochloric acid tank top and noble gas ftercompction pipeline
Lock control, it is possible to achieve hydrochloric acid tank automatic compensation, it is to avoid storage tank is inhaled because of negative pressure and suppressed；
4, the flashback tank that hydrochloric acid tank connects both had prevented escaping of hydrogen chloride gas from causing environmental pollution, kept away again
Exempt from storage tank to build the pressure the generation caused the accident.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
1 a kind of embodiment of the present utility model is described below in conjunction with the accompanying drawings.
Modified model hydrochloric acid reservoir apparatus, has hydrochloric acid tank 2, is provided with liquidometer in hydrochloric acid tank 2, described
Hydrochloric acid tank 2 top is provided with outlet line 207, hydrochloric acid feeding line 203, pressure monitor facility 206 and
Noble gas ftercompction pipeline 204, described hydrochloric acid tank 2 is connected with flashback tank 1 by outlet line 207,
The outlet of described flashback tank 1 arranges drain valve 101, and drain valve 101 is anticorrosion acid valve；Described hydrochloric acid tank
2 are connected with concentrated hydrochloric acid absorption system by hydrochloric acid feeding line 203；Described hydrochloric acid tank 2 passes through indifferent gas
Body ftercompction pipeline 204 connects with inert gas source, the preferential nitrogen of noble gas, described indifferent gas ftercompction pipe
Line 204 is provided with the regulation valve 205 of automatic inflating device；By pipeline 201 and salt bottom described hydrochloric acid tank 2
Acid outward transport circulating pump 202 connects.
Operation principle: after concentrated hydrochloric acid that absorption by Hydrochloric Acid system is made is qualified, enters storage in hydrochloric acid tank 2,
The hydrogen chloride gas produced that volatilizees in storing process carries out water seal absorption by flashback tank 1, prevents hydrogen chloride
Gas escapes, and pollutes environment；When concentrated hydrochloric acid needs outward transport, start hydrochloric acid outward transport circulating pump 202 and carry salt
Acid, now, hydrochloric acid tank 2 internal pressure reduces, and causes peace for preventing tank inside 2 from forming negative pressure
Full accident, the pressure monitor facility 206 at top by with the regulation valve on noble gas ftercompction pipeline 204
205 interlockings, it is achieved regulation valve 205 open to hydrochloric acid tank 2 ftercompction, regulation when pressure reaches setting value
Valve 205 is automatically switched off, and maintains the malleation in storage tank and inert environments all the time, it is ensured that safety during operation,
And the frequent operation to flashback tank 1 can be avoided, reduce the waste of water resource；Meanwhile, by hydrochloric acid
Storage tank 2 ftercompction, can replace the hydrogen having for a long time in hydrochloric acid tank 2, prevent hydrochloric acid tank 2
During operation, hydrogen dodges quick-fried generation, eliminates the potential safety hazard that hydrogen exists, for whole absorption by Hydrochloric Acid system
Stable operation lays the foundation.
Above-described embodiment, preferred embodiment the most of the present utility model, not it is used for limiting this utility model real
Executing scope, therefore all equivalence changes done with content described in this utility model claim, all should be included in
Within this utility model right.
Claims (4)
1. modified model hydrochloric acid reservoir apparatus, has hydrochloric acid tank (2), it is characterised in that: described hydrochloric acid stores up
Tank (2) top is provided with outlet line (207), hydrochloric acid feeding line (203), pressure monitor facility (206)
With noble gas ftercompction pipeline (204), described hydrochloric acid tank (2) passes through outlet line (207) and water
Joint sealing (1) connects, and described flashback tank (1) outlet arranges drain valve (101)；Described hydrochloric acid tank (2)
Connected with concentrated hydrochloric acid absorption system by hydrochloric acid feeding line (203)；Described hydrochloric acid tank (2) passes through
Noble gas ftercompction pipeline (204) connects with inert gas source, described indifferent gas ftercompction pipeline (204)
It is provided with the regulation valve (205) of automatic inflating device；Described hydrochloric acid tank (2) bottom is by pipeline (201)
Connect with hydrochloric acid outward transport circulating pump (202).
Modified model hydrochloric acid reservoir apparatus the most according to claim 1, it is characterised in that: described inertia
Gas source is source nitrogen.
Modified model hydrochloric acid reservoir apparatus the most according to claim 2, it is characterised in that: described hydrochloric acid
Storage tank is provided with liquidometer in (2).
Modified model hydrochloric acid reservoir apparatus the most according to claim 3, it is characterised in that: described discharge
Valve (101) is anticorrosion acid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620512457.5U CN205771036U (en) | 2016-05-31 | 2016-05-31 | Modified model hydrochloric acid reservoir apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620512457.5U CN205771036U (en) | 2016-05-31 | 2016-05-31 | Modified model hydrochloric acid reservoir apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205771036U true CN205771036U (en) | 2016-12-07 |
Family
ID=58137707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620512457.5U Expired - Fee Related CN205771036U (en) | 2016-05-31 | 2016-05-31 | Modified model hydrochloric acid reservoir apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205771036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215583A (en) * | 2017-05-19 | 2017-09-29 | 温岭市晨铭帽业有限公司 | A kind of volatile liquid holding vessel |
-
2016
- 2016-05-31 CN CN201620512457.5U patent/CN205771036U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215583A (en) * | 2017-05-19 | 2017-09-29 | 温岭市晨铭帽业有限公司 | A kind of volatile liquid holding vessel |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200531 |