CN114471097A - Drying system of hydrogen chloride gas - Google Patents

Drying system of hydrogen chloride gas Download PDF

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Publication number
CN114471097A
CN114471097A CN202210235234.9A CN202210235234A CN114471097A CN 114471097 A CN114471097 A CN 114471097A CN 202210235234 A CN202210235234 A CN 202210235234A CN 114471097 A CN114471097 A CN 114471097A
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CN
China
Prior art keywords
gas
dryer
pipeline
regulating valve
hydrogen chloride
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Pending
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CN202210235234.9A
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Chinese (zh)
Inventor
陈文吉
赵云松
王西玉
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Xinjiang Daqo New Energy Co Ltd
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Xinjiang Daqo New Energy Co Ltd
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Application filed by Xinjiang Daqo New Energy Co Ltd filed Critical Xinjiang Daqo New Energy Co Ltd
Priority to CN202210235234.9A priority Critical patent/CN114471097A/en
Publication of CN114471097A publication Critical patent/CN114471097A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention relates to the technical field of chemical drying equipment, in particular to a drying system of hydrogen chloride gas, which comprises a dryer, a heat-preservation jacket, a gas distributor and a defoaming separator, wherein the dryer is arranged on the heat-preservation jacket; the heat-preservation jacket is arranged on the outer side of the dryer in a surrounding manner, and a heat-preservation cavity is formed between the heat-preservation jacket and the dryer; the heat preservation jacket is provided with a heat preservation medium inlet and a heat preservation medium outlet; the top of the dryer is provided with an air outlet; the dryer is provided with a liquid inlet and a liquid outlet; the dryer is provided with a reflux inlet; the gas distributor is arranged at the lower part in the dryer; the gas distributor extends to the outside of the dryer through the gas inlet pipe; the defoaming separator is provided with a gas inlet; the gas inlet is communicated with the gas outlet through a gas conveying pipe; the defoaming separator is provided with a gas outlet; the bottom of the defoaming separator is provided with a separation liquid outlet; the separation liquid outlet is communicated with the reflux liquid inlet. The invention can improve the drying effect of the hydrogen chloride gas.

Description

Drying system of hydrogen chloride gas
Technical Field
The invention relates to the technical field of chemical drying equipment, in particular to a drying system of hydrogen chloride gas.
Background
In the production process of polycrystalline silicon, chlorine is an indispensable carrier element and theoretically cannot be consumed. However, along with the maintenance and replacement of equipment, the residual liquid discharge hydrolysis, the waste gas discharge hydrolysis, the solid waste treatment and the like, the waste gas can be discharged out of the system in the forms of chlorosilane, high-boiling residues, hydrogen chloride and the like, so that the loss of chlorine elements in the system is caused. Therefore, chlorine needs to be continuously added to the polysilicon production system to maintain the chlorine balance of the system. Moisture ingress is strictly prohibited during polysilicon production, and therefore, strict control of the water content is required during the addition of chlorine. At present, hydrogen chloride gas is mainly dried and then added into equipment. At present, the drying of the hydrogen chloride gas is generally carried out by adopting a mode of spraying drying agents such as chlorosilane liquid, but the hydrogen chloride gas cannot be fully contacted with the drying agents in the spraying process, so that the drying effect of the hydrogen chloride gas is influenced, the purity of the hydrogen chloride gas is further reduced, and the subsequent use is influenced.
Disclosure of Invention
In view of this, the present invention provides a drying system for hydrogen chloride gas, which mainly aims to improve the drying effect of hydrogen chloride gas.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a drying system of hydrogen chloride gas, which comprises a dryer, a heat-preservation jacket, a gas distributor and a defoaming separator, wherein the dryer is connected with the heat-preservation jacket;
the heat-preservation jacket is arranged on the outer side of the dryer in a surrounding manner, and a heat-preservation cavity is formed between the heat-preservation jacket and the dryer;
the heat-preservation jacket is provided with a heat-preservation medium inlet and a heat-preservation medium outlet;
the top of the dryer is provided with an air outlet;
the dryer is provided with a liquid inlet for inputting the drying agent; the dryer is provided with a liquid outlet for outputting the drying agent; a reflux inlet is arranged on the dryer;
the gas distributor is arranged at the lower part in the dryer; the gas distributor extends to the outside of the dryer through a gas inlet pipe;
a gas inlet is formed in the defoaming separator; the gas inlet is communicated with the gas outlet through a gas conveying pipe;
a gas outlet is arranged on the defoaming separator;
the bottom of the defoaming separator is provided with a separation liquid outlet; the separation liquid outlet is communicated with the reflux liquid inlet.
Further, the air inlet pipe is communicated with the first pipeline and used for allowing hydrogen chloride gas to be dried to enter; a first flow regulating valve is arranged on the first pipeline; a first flow sensor is arranged on the first pipeline; a first pressure sensor is arranged on the first pipeline;
the first pipeline is communicated with the gas conveying pipe through a second pipeline; a second flow regulating valve is arranged on the second pipeline;
a gas output pipe is arranged on the gas output port; the gas output pipe is communicated with the second pipeline through a third pipeline; a control valve is arranged on the pipeline III; and the connection point of the third pipeline and the second pipeline is positioned at the downstream of the second flow regulating valve.
Furthermore, a drying agent input pipe is arranged on the liquid inlet; a flow regulating valve III is arranged on the drying agent input pipe; a flow sensor III is arranged on the drying agent input pipe;
a drying agent output pipe is arranged on the liquid outlet; a flow regulating valve IV is arranged on the drying agent output pipe; and a flow sensor IV is arranged on the drying agent output pipe.
Further, a medium input pipe is arranged on the heat preservation medium inlet; a flow sensor V is arranged on the medium input pipe; and the medium input pipe is provided with the flow regulating valve V.
Further, a liquid level sensor is arranged on the dryer;
a temperature sensor is arranged on the dryer;
a second pressure sensor is arranged on the dryer;
and a third pressure sensor is arranged on the defoaming separator.
Further, still include: a control system;
the control system is respectively connected with the first flow sensor, the first pressure sensor, the third flow sensor, the fourth flow sensor, the fifth flow sensor, the liquid level sensor, the temperature sensor, the second pressure sensor and the third pressure sensor to acquire information;
and the control system is connected with the first flow regulating valve, the second flow regulating valve, the third flow regulating valve, the fourth flow regulating valve, the fifth flow regulating valve and the control valve for control.
Further, the control system controls the flow regulating valve V after processing the data of the temperature sensor and the flow sensor V;
and the control system controls the third flow regulating valve and the fourth flow regulating valve after processing the data of the liquid level sensor and the third flow sensor.
Further, still include: a pressure boosting device;
and the input end of the supercharging equipment is communicated with the gas output pipe.
Further, the gas distributor comprises: an airflow distribution chamber; the airflow distribution cavity is communicated with the air inlet pipe;
the upper side of the airflow distribution cavity is provided with an air distribution plate; the air distribution holes are uniformly distributed on the air distribution plate in a staggered manner.
Further, a manhole is arranged on the dryer;
and an observation lens opening is arranged on the dryer.
By the technical scheme, the drying system of the hydrogen chloride gas at least has the following advantages:
the drying effect of the hydrogen chloride gas is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a drying system for hydrogen chloride gas according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a dryer and a heat-insulating jacket in a hydrogen chloride gas drying system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a gas distributor in a drying system for hydrogen chloride gas according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a demister in a hydrogen chloride gas drying system according to an embodiment of the present invention.
Shown in the figure:
1 is a dryer, 1-1 is an air outlet, 1-2 is a liquid inlet, 1-3 is a liquid outlet, 1-4 is a reflux liquid inlet, 1-5 is an observation mirror opening, 1-6 is a manhole, 2 is a heat preservation jacket, 2-1 is a heat preservation medium inlet, 2-2 is a heat preservation medium outlet, 3 is a gas distributor, 3-1 is a gas distribution hole, 4 is a defoaming separator, 4-1 is a gas inlet, 4-2 is a gas outlet, 4-3 is a separation liquid outlet, 4-4 is a defoaming wire net, 4-5 is an access hole, 5 is a supercharging device, 101 is a first pipeline, 102 is a second pipeline, 103 is a third pipeline, 104 is a desiccant input pipe, 105 is a desiccant output pipe, 106 is a medium input pipe, 107 is a medium output pipe, 108 is a gas pipe, 109 is a separation liquid pipeline, 110 is an air inlet pipe, 201 is a flow sensor one, 202 is a pressure sensor one, 203 is a flow sensor three, 204 is a flow sensor four, 205 is a flow sensor five, 206 is a liquid level sensor, 207 is a temperature sensor, 208 is a pressure sensor two, 209 is a pressure sensor three, 301 is a flow regulating valve one, 302 is a flow regulating valve two, 303 is a flow regulating valve three, 304 is a flow regulating valve four, 305 is a flow regulating valve five, and 306 is a control valve.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1 to 4, a drying system of hydrogen chloride gas according to an embodiment of the present invention includes a dryer 1, a heat-insulating jacket 2, a gas distributor 3, and a demister separator 4;
the heat-preservation jacket 2 is arranged on the outer side of the dryer 1 in a surrounding manner, and a heat-preservation cavity is formed between the heat-preservation jacket and the dryer 1; the insulating medium flows in the insulating chamber to maintain the dryer 1 at a predetermined temperature. The heat preservation jacket 2 is provided with a heat preservation medium inlet 2-1 and a heat preservation medium outlet 2-2; the heat preservation medium inlet 2-1 is preferably arranged at the upper part of the heat preservation jacket 2 and is used for introducing a heat preservation medium; the insulating medium outlet 2-2 is preferably arranged at the lower part of the insulating jacket 2 for outflow of the insulating medium. A medium output pipe 107 is arranged on the heat preservation medium outlet 2-2.
The top of the dryer 1 is provided with an air outlet 1-1 for the dried gas to flow out. The drier 1 is provided with a liquid inlet 1-2 for inputting a drying agent. The drier 1 is provided with a liquid outlet 1-3 for outputting a drying agent; the desiccant in the dryer 1 is maintained at a certain level. The liquid level of the drying agent is higher than the position of the gas distributor 3, so that the gas output by the gas distributor 3 flows upwards through the drying agent and can be fully contacted with the drying agent.
The dryer 1 is provided with a reflux inlet 1-4 which is used for being communicated with a separation liquid outlet 4-3 of the defoaming separator 4 so that the separated drying agent can flow back to the dryer 1.
The gas distributor 3 is arranged at the lower part in the dryer 1; the gas distributor 3 extends to the outside of the dryer 1 through the gas inlet pipe 110; the hydrogen chloride gas to be dried is fed in via the inlet line 110.
The defoaming separator 4 is provided with a gas inlet 4-1; the gas inlet 4-1 is communicated with the gas outlet 1-1 through a gas pipe 108; the defoaming separator 4 is provided with a gas outlet 4-2; the bottom of the defoaming separator 4 is provided with a separated liquid outlet 4-3; the separation liquid outlet 4-3 is communicated with the reflux liquid inlet 1-4. A separation liquid line 109 is provided between the demister separator 4 and the dryer 1 so that the liquid phase collected in the demister separator 4 directly flows back into the dryer 1 through the separation liquid line 109. The demister separator 4 includes: 4-4 of a tank body and a defoaming wire mesh; the tank body is of a tank-shaped structure; the material of the tank body is preferably carbon steel. The defoaming silk screen 4-4 is arranged in the tank body, and the defoaming silk screen 4-4 is preferably made of stainless steel.
An embodiment of the present invention provides a drying system for hydrogen chloride gas, which improves a drying effect of hydrogen chloride gas.
Preferably, the gas inlet pipe 110 is communicated with the first pipeline 101 and is used for the entry of hydrogen chloride gas to be dried; the hydrogen chloride gas to be dried enters the dryer 1 through a first pipeline 101. The first pipeline 101 is provided with a first flow regulating valve 301 for regulating the flow of the gas in the first pipeline 101. The first pipeline 101 is provided with a first flow sensor 201 for monitoring the gas flow in the first pipeline 101. The first pipeline 101 is provided with a first pressure sensor 202 for monitoring the pressure in the first pipeline 101. The first pipeline 101 is communicated with the gas conveying pipe 108 through the second pipeline 102; the second pipeline 102 is provided with a second flow regulating valve 302 for regulating the on-off and flow of the second pipeline 102, and the arrangement of the second pipeline 102 can stabilize the pressure of the first pipeline 101 and prevent the influence of the change of the gas pressure in the first pipeline 101 on the front-end hydrogen chloride gas synthesis system.
A gas output pipe is arranged on the gas output port 4-2; the gas output pipe is communicated with a second pipeline 102 through a third pipeline 103; a control valve 306 is arranged on the third pipeline 103; the connection point of the third pipeline 103 and the second pipeline 102 is positioned at the downstream of the second flow regulating valve 302, so that the system continuously operates when the demister separator 4 is isolated for maintenance.
Preferably, a desiccant input pipe 104 is arranged on the liquid inlet 1-2; a flow regulating valve III 303 is arranged on the desiccant input pipe 104 and is used for regulating the flow of the desiccant in the desiccant input pipe 104; and a third flow sensor 203 is arranged on the desiccant input pipe 104 and is used for monitoring the flow of the desiccant in the desiccant input pipe 104.
A desiccant output pipe 105 is arranged on the liquid outlet 1-3; a flow regulating valve IV 304 is arranged on the desiccant output pipe 105 and is used for regulating the flow of the desiccant in the desiccant output pipe 105; the desiccant output pipe 105 is provided with a flow sensor four 204 for monitoring the flow of the desiccant in the desiccant output pipe 105. The flow regulating valve four 304 can form a single-loop control with the liquid level sensor 206 of the dryer 1 so as to stabilize the desiccant liquid level in the dryer 1; after the operation is stable, the flow sensor III 203 and the liquid level sensor 206 are interlocked to form multi-loop control so as to keep the liquid level of the drying agent in the dryer 1 stable; and compares the data of the flow sensor four 204 of the desiccant output pipe 105 and the flow sensor three 203 of the desiccant input pipe 104 to calculate the desiccant consumption.
As the optimization of the above embodiment, the heat preservation medium inlet 2-1 is provided with a medium input pipe 106; a flow sensor five 205 is arranged on the medium input pipe 106; the medium input pipe 106 is provided with a flow regulating valve five 305 so as to control the flow of the heat preservation medium entering the heat preservation cavity, and the medium input pipe and the temperature sensor 207 at the lower part of the dryer 1 form multi-loop control so as to stabilize the temperature of the drying agent in the dryer 1.
Preferably, the dryer 1 is provided with a liquid level sensor 206 for monitoring the liquid level of the drying agent in the dryer 1. The dryer 1 is provided with a temperature sensor 207 for monitoring the temperature inside the dryer 1. The second pressure sensor 208 is arranged on the dryer 1 and used for monitoring the pressure in the dryer 1 so as to monitor data in the dryer 1 and facilitate automatic control. Be provided with three 209 pressure sensor on the demister separator 4 for the pressure in the monitoring demister separator 4 to the pressure data in the monitoring demister separator 4, the automatic control of being convenient for. The second pressure sensor 208 is arranged at the top of the dryer 1, the third pressure sensor 209 is arranged at the outlet of the defoaming separator 4, and the air outlet condition of the gas distributor 3 in the dryer 1 and the wire mesh defoaming condition of the defoaming separator 4 can be judged according to the pressure difference.
As a preferable aspect of the above embodiment, a system for drying hydrogen chloride gas according to an embodiment of the present invention further includes: a control system; the control system is respectively connected with a first flow sensor 201, a first pressure sensor 202, a third flow sensor 203, a fourth flow sensor 204, a fifth flow sensor 205, a liquid level sensor 206, a temperature sensor 207, a second pressure sensor 208 and a third pressure sensor 209 to acquire information; the control system is connected with the first flow regulating valve 301, the second flow regulating valve 302, the third flow regulating valve 303, the fourth flow regulating valve 304, the fifth flow regulating valve 305 and the control valve 306 for control, and the automatic drying of the hydrogen chloride gas is realized through the control system. More preferably, the control system processes the data of the temperature sensor 207 and the flow sensor five 205 and then controls the flow regulating valve five 305; the flow of the heat preservation medium entering the heat preservation cavity is convenient to control so as to stabilize the temperature of the drying agent in the dryer 1.
After processing the data of the liquid level sensor 206 and the flow sensor three 203, the control system controls the flow regulating valve three 303 and the flow regulating valve four 304 to form multi-loop control so as to keep the liquid level of the drying agent in the dryer 1 stable.
As a preferable aspect of the above embodiment, a system for drying hydrogen chloride gas according to an embodiment of the present invention further includes: a pressure boosting device 5; the input end of the supercharging device 5 is communicated with the gas output pipe. Because the pressure ratio of the hydrogen chloride gas at the front end is lower, the outlet pressure of the hydrogen chloride gas is about 80KP.G generally, and the pressure after drying is about 60KPa.G, the hydrogen chloride gas is required to be pressurized for use in a subsequent system so as to meet the pressure requirement of the subsequent system. The supercharging apparatus 5 in the present embodiment is preferably a volumetric compressor package.
As a preference of the above embodiment, the gas distributor 3 includes: an airflow distribution chamber; the airflow distribution chamber is communicated with the air inlet pipe 110; the upper side of the airflow distribution cavity is provided with an air distribution plate; the gas distribution plate is uniformly distributed with gas distribution holes 3-1 in a staggered way so as to uniformly disperse and output the gas to be dried, which is input by the gas inlet pipe 110, through the gas supply holes. The air distribution holes 3-1 are preferably circular holes with a diameter of 12 mm. The total area of the air distribution holes 3-1 is larger than the cross section area of the air inlet pipe 110, so that the flow speed of the air is slowed down, and uniform air distribution is realized.
As a preference of the above embodiment, the dryer 1 is provided with manholes 1-6 to facilitate the installation of the gas distributor 3.
The dryer 1 is provided with observation ports 1-5 so as to observe the liquid level of the liquid phase in the dryer 1 and the solid content condition of the liquid phase.
As a preference of the above embodiment, the demister separator 4 is provided with manholes 4-5 for installation and inspection of the demister separator 4. When the pressure difference between the inlet and the outlet of the demister separator 4 increases, the demister in the demister separator 4 needs to be checked or repaired.
The drying agent can be selected from high-boiling substances or silicon tetrachloride which cannot be recycled in the production of polycrystalline silicon. The use of the high boiling point drying agent, except that the temperature in the dryer 1 is kept stable, the inlet and outlet pipeline of the drying agent is suggested to be continuously operated or a heat tracing system is added to the pipeline, so as to ensure that the drying agent is not condensed to block the pipeline in a low-temperature environment; the low boiling point desiccant does not condense and block the pipeline in low temperature environment, and can be operated intermittently, but the solid phase concentration in the dryer 1 needs to be maintained to prevent the pipeline from being blocked by too high solid phase concentration.
The drying system for the hydrogen chloride gas provided by one embodiment of the invention can fundamentally solve the problem of water content of the hydrogen chloride gas and ensure that the water content of the hydrogen chloride gas entering the polycrystalline silicon production device meets the requirement. The problem that the hydrogen chloride gas corrodes the pipeline and the supercharging equipment 5 in the conveying process is solved, the maintenance cost of the conveying system is saved, and the reliability is increased for supplementing chlorine in the polycrystalline silicon system.
Further still, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, with such terms being used only to distinguish one element from another. Without departing from the scope of the exemplary embodiments. Similarly, the terms first, second, etc. do not denote any order or order, but rather the terms first, second, etc. are used to distinguish one element from another. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims (10)

1. A drying system of hydrogen chloride gas is characterized by comprising a dryer, a heat preservation jacket, a gas distributor and a defoaming separator;
the heat-preservation jacket is arranged on the outer side of the dryer in a surrounding manner, and a heat-preservation cavity is formed between the heat-preservation jacket and the dryer;
the heat-preservation jacket is provided with a heat-preservation medium inlet and a heat-preservation medium outlet;
the top of the dryer is provided with an air outlet;
the dryer is provided with a liquid inlet for inputting the drying agent; the dryer is provided with a liquid outlet for outputting the drying agent; a reflux inlet is arranged on the dryer;
the gas distributor is arranged at the lower part in the dryer; the gas distributor extends to the outside of the dryer through a gas inlet pipe;
a gas inlet is formed in the defoaming separator; the gas inlet is communicated with the gas outlet through a gas conveying pipe;
a gas outlet is arranged on the defoaming separator;
the bottom of the defoaming separator is provided with a separation liquid outlet; the separation liquid outlet is communicated with the reflux liquid inlet.
2. The drying system of hydrogen chloride gas as claimed in claim 1,
the gas inlet pipe is communicated with the first pipeline and is used for introducing hydrogen chloride gas to be dried; a first flow regulating valve is arranged on the first pipeline; a first flow sensor is arranged on the first pipeline; a first pressure sensor is arranged on the first pipeline;
the first pipeline is communicated with the gas conveying pipe through a second pipeline; a second flow regulating valve is arranged on the second pipeline;
a gas output pipe is arranged on the gas output port; the gas output pipe is communicated with the second pipeline through a third pipeline; a control valve is arranged on the third pipeline; and the connection point of the third pipeline and the second pipeline is positioned at the downstream of the second flow regulating valve.
3. The drying system of hydrogen chloride gas according to claim 2,
a drying agent input pipe is arranged on the liquid inlet; a flow regulating valve III is arranged on the drying agent input pipe; a flow sensor III is arranged on the drying agent input pipe;
a drying agent output pipe is arranged on the liquid outlet; a flow regulating valve IV is arranged on the drying agent output pipe; and a flow sensor IV is arranged on the drying agent output pipe.
4. The drying system of hydrogen chloride gas as claimed in claim 3,
a medium input pipe is arranged on the heat preservation medium inlet; a flow sensor V is arranged on the medium input pipe; and the medium input pipe is provided with the flow regulating valve V.
5. The drying system of hydrogen chloride gas as claimed in claim 4,
a liquid level sensor is arranged on the dryer;
a temperature sensor is arranged on the dryer;
a second pressure sensor is arranged on the dryer;
and a third pressure sensor is arranged on the defoaming separator.
6. The drying system of hydrogen chloride gas as claimed in claim 5, further comprising: a control system;
the control system is respectively connected with the first flow sensor, the first pressure sensor, the third flow sensor, the fourth flow sensor, the fifth flow sensor, the liquid level sensor, the temperature sensor, the second pressure sensor and the third pressure sensor to acquire information;
and the control system is connected with the first flow regulating valve, the second flow regulating valve, the third flow regulating valve, the fourth flow regulating valve, the fifth flow regulating valve and the control valve for control.
7. The hydrogen chloride gas drying system of claim 6,
the control system controls the flow regulating valve V after processing the data of the temperature sensor and the flow sensor V;
and the control system controls the third flow regulating valve and the fourth flow regulating valve after processing the data of the liquid level sensor and the third flow sensor.
8. The hydrogen chloride gas drying system of claim 1, further comprising: a pressure boosting device;
and the input end of the supercharging equipment is communicated with the gas output pipe.
9. The drying system of hydrogen chloride gas as claimed in claim 1,
the gas distributor comprises: an airflow distribution chamber; the airflow distribution cavity is communicated with the air inlet pipe;
the upper side of the airflow distribution cavity is provided with an air distribution plate; the air distribution holes are uniformly distributed on the air distribution plate in a staggered manner.
10. The drying system of hydrogen chloride gas as claimed in claim 1,
a manhole is arranged on the dryer;
and an observation lens opening is arranged on the dryer.
CN202210235234.9A 2022-03-10 2022-03-10 Drying system of hydrogen chloride gas Pending CN114471097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210235234.9A CN114471097A (en) 2022-03-10 2022-03-10 Drying system of hydrogen chloride gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210235234.9A CN114471097A (en) 2022-03-10 2022-03-10 Drying system of hydrogen chloride gas

Publications (1)

Publication Number Publication Date
CN114471097A true CN114471097A (en) 2022-05-13

Family

ID=81486608

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210235234.9A Pending CN114471097A (en) 2022-03-10 2022-03-10 Drying system of hydrogen chloride gas

Country Status (1)

Country Link
CN (1) CN114471097A (en)

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