CN211902357U - Hydrogen chloride feed system suitable for many sets of reaction feeding - Google Patents
Hydrogen chloride feed system suitable for many sets of reaction feeding Download PDFInfo
- Publication number
- CN211902357U CN211902357U CN201921879498.8U CN201921879498U CN211902357U CN 211902357 U CN211902357 U CN 211902357U CN 201921879498 U CN201921879498 U CN 201921879498U CN 211902357 U CN211902357 U CN 211902357U
- Authority
- CN
- China
- Prior art keywords
- hydrogen chloride
- valve
- feeding
- pipeline
- feed system
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pipeline Systems (AREA)
Abstract
The utility model discloses a hydrogen chloride charge-in system suitable for many sets of reaction feeding, including a plurality of hydrogen chloride buffer tanks, each buffer tank is a compressor of corresponding connection and one set of reaction system, but through the reserve feeding pipeline connection of alternate switch between the hydrogen chloride buffer tank. By developing the hydrogen chloride feeding system suitable for multiple sets of reaction feeding, the mutual standby among all the feeding systems can be met on the premise of not increasing a compressor, the utilization rate of hydrogen chloride in a recovery workshop is improved, the emptying amount of hydrogen chloride is reduced, the normal and safe operation of all production lines is guaranteed, and the loss caused by the shutdown of the device due to faults or maintenance is avoided; through optimizing and improving the feeding system, each section of the feeding system is checked and maintained, and the stable operation of each production line is ensured.
Description
Technical Field
The utility model relates to a polycrystalline silicon production field especially relates to a hydrogen chloride charge-in system suitable for many sets of reaction feeding.
Background
In the production of polycrystalline silicon, cold hydrogenation is used as an important process route, hydrogen chloride is used as a raw material, and in the production of large-scale polycrystalline silicon, more than one set of cold hydrogenation production line is usually provided. In the prior art, the source of hydrogen chloride is the hydrogen chloride supply of a recovery plant. When a certain production line runs, if a compressor fails, the compressor cannot receive hydrogen chloride from a recovery workshop, the hydrogen chloride discharged outside from the recovery workshop is generally a stable constant, and the hydrogen chloride led to the production line can only be emptied to a tail gas treatment device through a tail gas pipeline by the recovery workshop at the moment, so that a large amount of raw materials are wasted, the running load of the tail gas treatment device is increased, the extra cost is increased, and once the emptying amount of the hydrogen chloride reaches a certain degree, even the equipment accident of the tail gas treatment device is easily caused.
Therefore, there is a need to develop a hydrogen chloride feeding system suitable for multiple sets of reaction feeding, so as to realize the backup of the multiple sets of reaction feeding systems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide a hydrogen chloride charge-in system suitable for many sets of reaction feeding can satisfy and reserve each other between each charge-in system to avoid because trouble or overhaul the device that brings and stop production, guarantee system normal safe operation reduces the empty volume of hydrogen chloride.
The utility model discloses a following technical scheme:
a hydrogen chloride feeding system suitable for multiple sets of reaction feeding comprises a plurality of hydrogen chloride buffer tanks, wherein each buffer tank is correspondingly connected with a compressor and a set of reaction system;
the hydrogen chloride buffer tanks are provided with hydrogen chloride feeding pipelines, and the feeding pipelines of the buffer tanks are provided with communicating pipelines with two control valves which are connected through multidirectional joints; the multi-way joint is upwards provided with an emptying pipeline with an emptying valve;
and a branch pipeline is downwards arranged between the two control valves of each communication pipeline and converged at a pipeline outlet with a pilot shower valve.
Corresponding to a plurality of sets of reaction systems, the feeding system of the hydrogen chloride feeding system can realize independent feeding of each reaction system and can realize mutual standby feeding at the same time. The hydrogen chloride can be discharged during special production stop through the vent valve, and the vent valve is connected to the tail gas treatment pipeline; the sectional replacement and maintenance can be realized through the pilot shower valve.
Furthermore, the emptying valve and the pilot shower valve are additionally provided with blind flanges to be used as pressure test, leakage test and plugging of pipeline equipment, and the pipelines are guaranteed not to be leaked when the emptying valve and the pilot shower valve are not used.
In an embodiment of the present invention, the branch pipes disposed downward from the respective communication pipes are converged and connected to a multi-way valve, and the multi-way valve is connected to the flow guide/shower valve.
In an embodiment of the present invention, each branch pipeline of each communication pipeline disposed downwards is provided with a control valve, and the control valve is connected to the pilot shower valve after being gathered by a multi-way joint.
The two schemes can realize the respective communication between each communication pipeline and the pilot shower valve, the operation of the main pipeline is not influenced, and the replacement and the maintenance of the segmented pipeline are successfully realized.
Furthermore, the branch pipe of the emptying pipeline is connected into the multi-way joint from the top, so that the emptying pipeline is ensured to be positioned at a relatively high position of the pipeline.
Furthermore, the multi-way joint is also connected with a safety valve, so that potential safety hazards caused by overlarge pressure are avoided.
Furthermore, the safety valve is provided with a 6mm tear hole, and aims to discharge accumulated water in a pipeline so as to prevent the outlet pressure of the safety valve from increasing due to blockage of the outlet and prevent the safety valve from working normally.
Further, the hydrogen chloride pipeline feeding system comprises a purging system, and the purging system can be connected with the feeding pipeline reserved interface of each buffer tank and each control valve. The purging system purges, replaces and inspects the sections of the feed line.
Further, the hydrogen chloride buffer tank is provided with a field pressure gauge and a field thermometer and is connected with a central control system of the reaction device through a pressure sensor and a temperature sensor.
Since the technical scheme is used, the utility model discloses following beneficial effect has: by developing the hydrogen chloride feeding system suitable for multiple sets of reaction feeding, the mutual standby among all the feeding systems can be met on the premise of not increasing a compressor, the utilization rate of hydrogen chloride in a recovery workshop is improved, the emptying amount of hydrogen chloride is reduced, the normal and safe operation of all production lines is guaranteed, and the loss caused by the shutdown of the device due to faults or maintenance is avoided; through optimizing and improving the feeding system, each section of the feeding system is checked and maintained, and the stable operation of each production line is ensured.
Drawings
FIG. 1 is a schematic diagram of a hydrogen chloride feed system of example 1 of the present invention;
FIG. 2 is a schematic diagram of a hydrogen chloride feed system of example 2 of the present invention;
reference numerals: 1-a first hydrogen chloride buffer tank, 2-a second hydrogen chloride buffer tank, 3-a compressor, 4-a first control valve, 5-a second control valve, 6-a third control valve, 7-a fourth control valve, 8-a fifth control valve, 9-a guide shower valve, 10-a sixth control valve, 11-an emptying valve, 12-a safety valve, 13-a third hydrogen chloride buffer tank, 14-a seventh control valve, 15-an eighth control valve and 16-a four-way valve.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
As shown in fig. 1, the hydrogen chloride feeding system is suitable for two sets of reaction devices, and comprises a first hydrogen chloride buffer tank 1 and a second hydrogen chloride buffer tank 2, wherein the two buffer tanks are respectively and correspondingly connected with a compressor 3 and a reaction system;
each hydrogen chloride buffer tank is provided with a hydrogen chloride feeding pipeline, and the feeding pipeline is connected with a hydrogen chloride outlet of a recovery workshop through a compressor. The feeding pipelines of the first hydrogen chloride buffer tank 1 and the second hydrogen chloride buffer tank 2 are connected with a four-way joint through a communication pipeline. A first control valve 4 and a second control valve 5 are arranged between the first hydrogen chloride buffer tank 1 and the four-way joint, a third control valve 6 and a fourth control valve 7 are arranged between the second hydrogen chloride buffer tank 2 and the four-way joint, a branch pipeline with a fifth control valve 8 is arranged between the first control valve 4 and the second control valve 5 and is connected with a pilot shower valve 9, and a branch pipeline with a sixth control valve 10 is arranged between the third control valve 6 and the fourth control valve 7 and is connected with the pilot shower valve 9.
The four-way joint is upwards provided with an emptying pipeline with an emptying valve 11; the branch pipe of the emptying pipeline is connected into the four-way joint from the top, so that the emptying pipeline is ensured to be positioned at the relative high position of the pipeline. The cross connection still is connected with relief valve 12, avoids the too big potential safety hazard that causes of pressure, and relief valve 12 is provided with 6 mm's lacrimal hole, and the purpose is the ponding in the discharge line to block up the export and cause relief valve outlet pressure to increase, unable normal work.
Blind flanges are additionally arranged on the emptying valve 11 and the pilot valve 9 and used for pressure testing, leakage testing and plugging of pipeline equipment, and the fact that pipelines are not leaked when the emptying valve 11 and the pilot valve 9 are not used is guaranteed.
Each hydrogen chloride buffer tank is provided with a site pressure gauge PG and a site temperature gauge TG, and is connected with a central control system of the reaction device through a pressure sensor PT and a temperature sensor TT.
The implementation process of this embodiment is as follows: under normal conditions, in the hydrogen chloride feeding system, each compressor compresses hydrogen chloride and then discharges the compressed hydrogen chloride into a respective hydrogen chloride buffer tank, so that respective production requirements of a plurality of cold hydrogenation production lines are met. When the compressor of a certain cold hydrogenation production line is in a maintenance state, the hydrogen chloride gas can be sent to the cold hydrogenation production line with the compressor fault by the compressor of another idle cold hydrogenation production line, or the hydrogen chloride supply of another cold hydrogenation production line in normal operation is increased, and the hydrogen chloride gas is shunted and sent to the cold hydrogenation production line with the compressor fault by the compressor through the control valve. For example, if the compressor directly connected to the second hydrogen chloride buffer tank 2 is overhauled, the first control valve 4, the second control valve 5, the third control valve 6 and the fourth control valve 7 may be opened to supply the hydrogen chloride from the compressor directly connected to the first hydrogen chloride buffer tank 1 to the production line in which the second hydrogen chloride buffer tank 2 is located.
The hydrogen chloride pipeline feeding system comprises a purging system, and the purging system is a pressurized nitrogen pipeline with a control valve or a steel cylinder. The reserved interfaces of the feeding pipelines of the buffer tanks or the interfaces of the control valves can be connected with a purging system, and the purging system performs purging, replacement and pipeline inspection on the feeding pipelines.
When the pipelines are checked and replaced, the pilot shower valve is combined, and the segmental pipeline checking can be realized by closing and opening part of control valves connected with the pilot shower valve without influencing the normal operation of the other pipeline.
Example 2
As shown in fig. 2, a hydrogen chloride feeding system suitable for multiple sets of reaction feeding is suitable for three sets of reaction devices, and comprises a first hydrogen chloride buffer tank 1, a second hydrogen chloride buffer tank 2, a third hydrogen chloride buffer tank 13, and three buffer tanks, which are respectively connected with a compressor 3 and a reaction system;
each hydrogen chloride buffer tank is provided with a hydrogen chloride feeding pipeline, and the feeding pipelines of the first hydrogen chloride buffer tank 1, the second hydrogen chloride buffer tank 2 and the third hydrogen chloride buffer tank 13 are connected with a five-way joint through communicating pipelines. A first control valve 4 and a second control valve 5 are arranged between the first hydrogen chloride buffer tank 1 and the five-way joint, a third control valve 6 and a fourth control valve 7 are arranged between the second hydrogen chloride buffer tank 2 and the five-way joint, and a seventh control valve 14 and an eighth control valve 15 are arranged between the third hydrogen chloride buffer tank 13 and the five-way joint; the first control valve 4 and the second control valve 5, the third control valve 6 and the fourth control valve 7, and the seventh control valve 14 and the eighth control valve 15 are connected with a four-way valve 16 through branch pipelines, and the other interface of the four-way valve 16 is connected with the shower valve 9.
The five-way joint is upwards provided with an emptying pipeline with an emptying valve 11; the branch pipe of the emptying pipeline is connected into the five-way joint from the top, so that the emptying pipeline is ensured to be positioned at a relatively high position of the pipeline. The five-way joint still is connected with relief valve 12, avoids the too big potential safety hazard that causes of pressure, and relief valve 12 is provided with 6 mm's lacrimal hole, and the ponding in the discharge pipeline is in the purpose to block up the export and cause relief valve outlet pressure to increase, unable normal work.
Blind flanges are additionally arranged on the emptying valve 11 and the pilot valve 9 and used for pressure testing, leakage testing and plugging of pipeline equipment, and the fact that pipelines are not leaked when the emptying valve 11 and the pilot valve 9 are not used is guaranteed.
Each hydrogen chloride buffer tank is provided with a site pressure gauge PG and a site temperature gauge TG, and is connected with a central control system of the reaction device through a pressure sensor PT and a temperature sensor TT.
The hydrogen chloride pipeline feeding system comprises a purging system, and the purging system is a pressurized nitrogen pipeline with a control valve or a steel cylinder. The reserved interfaces of the feeding pipelines of the buffer tanks or the interfaces of the control valves can be connected with a purging system, and the purging system performs purging, replacement and pipeline inspection on the feeding pipelines.
This example was carried out as in example 1.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a hydrogen chloride charge-in system suitable for many sets of reaction feeding which characterized in that: the system comprises a plurality of hydrogen chloride buffer tanks, wherein each buffer tank is correspondingly connected with a compressor and a set of reaction system;
the hydrogen chloride buffer tanks are provided with hydrogen chloride feeding pipelines, and the feeding pipelines of the buffer tanks are provided with communicating pipelines with two control valves which are connected through multidirectional joints; the multi-way joint is upwards provided with an emptying pipeline with an emptying valve;
a branch pipeline is arranged downwards between the two control valves of each communication pipeline and converged at a pipeline outlet with a pilot shower valve.
2. The hydrogen chloride feed system of claim 1, wherein: blind flanges are additionally arranged on the emptying valve and the pilot shower valve.
3. The hydrogen chloride feed system of claim 1, wherein: the branch pipelines arranged downwards of each communication pipeline are converged and connected to a multi-way valve, and the multi-way valve is connected with a pilot shower valve.
4. The hydrogen chloride feed system of claim 1, wherein: each branch pipeline that each intercommunication pipeline set up downwards all sets up the control valve, connects the guide and drenches the valve after gathering through a multidirectional joint.
5. The hydrogen chloride feed system of claim 1, wherein: and branch pipes of the emptying pipelines are connected into the multi-way joint from the top.
6. The hydrogen chloride feed system of claim 1, wherein: the multi-way joint is also connected with a safety valve.
7. The hydrogen chloride feed system of claim 6, wherein: the safety valve is provided with a 6mm tear hole.
8. The hydrogen chloride feed system of claim 1, wherein: the hydrogen chloride feeding system comprises a purging system, and the purging system can be connected with the feeding pipeline reserved interface of each buffer tank and each control valve.
9. The hydrogen chloride feed system according to any one of claims 1 to 8, characterized in that: the hydrogen chloride buffer tank is provided with a field pressure gauge and a field thermometer and is connected with a central control system of the reaction device through a pressure sensor and a temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921879498.8U CN211902357U (en) | 2019-11-01 | 2019-11-01 | Hydrogen chloride feed system suitable for many sets of reaction feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921879498.8U CN211902357U (en) | 2019-11-01 | 2019-11-01 | Hydrogen chloride feed system suitable for many sets of reaction feeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211902357U true CN211902357U (en) | 2020-11-10 |
Family
ID=73285642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921879498.8U Active CN211902357U (en) | 2019-11-01 | 2019-11-01 | Hydrogen chloride feed system suitable for many sets of reaction feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211902357U (en) |
-
2019
- 2019-11-01 CN CN201921879498.8U patent/CN211902357U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211902357U (en) | Hydrogen chloride feed system suitable for many sets of reaction feeding | |
| CN109216732B (en) | High-pressure hydrogen supply system of hydrogen fuel cell ship | |
| CN112227725A (en) | Grouting structure of long pore passage of prestressed concrete stiffening beam and construction method thereof | |
| CN209622143U (en) | A kind of autocontrol natural gas steam trap group | |
| CN211315793U (en) | Emergency air source box for water gate of nuclear power station refueling pool | |
| CN202302744U (en) | Compressed air supply system for chemical fiber production | |
| CN202729345U (en) | Pneumatic dedusting system | |
| CN213930428U (en) | Safety instrument system with multiple gas sources | |
| CN209631176U (en) | One kind being capable of self-relieving stills for air blowing | |
| CN211026245U (en) | Hydrogen pipeline optimizing device for hydrogenation process | |
| CN214405605U (en) | Hydrogen storage system and hydrogenation station | |
| CN114665127A (en) | Marine hydrogen storage and supply system | |
| CN210716962U (en) | Prefabricated pipe-line system suitable for nitrogen hydrogen gas body | |
| CN111076503A (en) | Vacuum drying furnace device for hard alloy and drying method | |
| CN219140481U (en) | Liquid oxygen filling system | |
| CN211174842U (en) | Hydraulic pipeline system of tundish baking box | |
| CN206219255U (en) | Surge tank and the usage on black water device with it | |
| CN203009456U (en) | Pressure detection connecting device for hydraulic system | |
| CN219615697U (en) | Gear sealing cooling air system and coal grinding system of steel ball coal mill | |
| CN217761267U (en) | Air supply system | |
| CN214663730U (en) | Purging mechanism for eliminating chlorine corrosion thermocouple | |
| CN210662320U (en) | Pressure pipe system | |
| CN216241504U (en) | System for protecting double-end mechanical seal flushing pipeline of centrifugal pump | |
| CN219010221U (en) | Top balance tank cleaning system of continuous reforming reactor | |
| CN109595210A (en) | A kind of explosion-proof valve module of Combined oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |