CN110772978A - Electrical control system for catalytic oxidation of high-concentration organic gas tail gas - Google Patents
Electrical control system for catalytic oxidation of high-concentration organic gas tail gas Download PDFInfo
- Publication number
- CN110772978A CN110772978A CN201910874394.6A CN201910874394A CN110772978A CN 110772978 A CN110772978 A CN 110772978A CN 201910874394 A CN201910874394 A CN 201910874394A CN 110772978 A CN110772978 A CN 110772978A
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- control system
- electrical control
- catalytic oxidation
- tail gas
- concentration organic
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/346—Controlling the process
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to the technical field of tail gas treatment, in particular to an electrical control system for catalytic oxidation of high-concentration organic gas tail gas. An electrical control system for catalytic oxidation of a high concentration organic gas tail gas, the electrical control system comprising: the four-channel gas guide device comprises a four-channel gas guide device, a bypass valve, a fan, an electric heater, a power distribution cabinet and an operation box; the four-channel gas flow guider, the bypass valve, the fan, the electric heating control circuit and the power supply circuit are all arranged in the power distribution cabinet; the operation box is matched with the power distribution cabinet for use and is used for controlling the operation of each loop. The invention solves the problems of environmental pollution and poor electrical control effect caused by direct exhaust of the existing tail gas.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to an electrical control system for catalytic oxidation of high-concentration organic gas tail gas.
Background
In the current industrial production process, tail gas is discharged in the production of gas-solid phase catalytic oxidation chemical products and the coating production process of light industry, and the tail gas contains a certain amount of organic matters which can be generated by ortho-xylene, toluene, benzene, butane, butadiene, propylene, acrylic acid, acetic acid and the like. If the active carbon adsorption or solvent absorption is adopted, solid waste is generated, or the separation problem after the solvent absorption can cause pollution to the atmosphere. Moreover, the traditional electric control system cannot meet the requirements for treating the tail gas, and the treatment effect is not ideal enough.
For the above problems, new technical solutions need to be proposed.
Disclosure of Invention
The invention aims to utilize the principle of catalytic oxidation and the cooperation of an electrical control system to enable high-concentration organic gas tail gas to react to generate nontoxic and harmless gas which can be directly discharged without polluting the environment. The invention realizes the aim through the following technical scheme:
an electrical control system for catalytic oxidation of a high concentration organic gas tail gas, the electrical control system comprising: the four-channel gas guide device comprises a four-channel gas guide device, a bypass valve, a fan, an electric heater, a power distribution cabinet and an operation box;
the four-channel gas flow guider, the bypass valve, the fan, the electric heating control circuit and the power supply circuit are all arranged in the power distribution cabinet; the operation box is matched with the power distribution cabinet for use and is used for controlling the operation of each loop; the four-way valve used by the four-channel gas flow guider adopts a three-phase motor to drive the lifting structure of the four-channel gas flow guider, and the four-channel gas flow guider is also provided with a safety protection loop unit; the bypass valve is set to be in remote and local control modes; the fan can output an operation state signal and an alarm signal; the electric heater can output an operation state signal and an alarm signal.
In one embodiment, the safety protection circuit unit comprises two contactors for controlling the positive and negative rotation of the motor, a mechanical limiting device and a motor protector.
In one embodiment, the bypass valve is an integral butterfly valve with an electric actuator, using a three-phase power supply.
In one embodiment, the blower is directly activated for contactor, with a motor protector.
In one embodiment, the electrical heating is contactor activated with a thermal relay.
In one embodiment, the power distribution cabinet can remotely control the operation of the power distribution cabinet through an externally accessed relay on-off signal (a central control passive relay output).
The invention has the following beneficial effects:
1. the invention can realize automatic control of the catalytic oxidation process, is convenient for people to observe and monitor, and the effect of tail gas treatment can reach the expected target.
2. The invention is provided with multiple safety protection measures, ensures the stability of the catalytic oxidation process, avoids the problem of generating faults and influences the normal production process.
Drawings
FIG. 1 is a schematic flow diagram of the catalytic oxidation of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those embodiments can be easily implemented by those having ordinary skill in the art to which the present invention pertains. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.
An electrical control system for catalytic oxidation of a high concentration organic gas tail gas, the electrical control system comprising: the four-channel gas guide device comprises a four-channel gas guide device, a bypass valve, a fan, an electric heater, a power distribution cabinet and an operation box;
the four-channel gas flow guider, the bypass valve, the fan, the electric heating control circuit and the power supply circuit are all arranged in the power distribution cabinet; the operation box is matched with the power distribution cabinet for use and used for controlling the operation of each loop, each loop operation button and a signal indicator lamp are arranged on the operation box, and the operation box is provided with a remote/local conversion knob and used for switching local operation (operation box) and remote operation (central control signal) to prevent misoperation;
the four-way valve used by the four-channel gas flow guider adopts a three-phase motor to drive the lifting structure of the four-channel gas flow guider, and the four-channel gas flow guider is also provided with a safety protection loop unit; the four-channel gas flow guider is provided with a valve position analog quantity output (4-20mA) and accurately outputs a current position signal of the four-way valve;
the bypass valve is set to be in remote and local control modes; the bypass valve can output a limit signal, an overheating signal, an operation signal and a valve position analog quantity signal (4-20 mA); the control mode is inching mode and analog quantity control mode (4-20 mA);
the fan can output an operation state signal and an alarm signal;
the electric heater can output an operation state signal and an alarm signal.
Preferably, as an implementable mode, the safety protection circuit unit comprises two contactors for controlling the positive and negative rotation of the motor, a mechanical limiting device and a motor protector, the current state of the four-way valve is fed back through fault indication, limiting indication and running state indication, and two modes of indicating lamp output and relay signal output are provided.
Preferably, as an embodiment, the bypass valve is a butterfly valve with an integrated electric actuator, and a three-phase power supply system is used, and a protection circuit is formed by a motor protector and the actuator with self-overheating protection.
Preferably, as an implementation mode, the fan is directly started by a contactor and is provided with a motor protector.
Preferably, as an implementation mode, the electric heating is started by a contactor and is provided with a heat relay.
Preferably, as an implementation mode, the power distribution cabinet can remotely control the operation of the power distribution cabinet through an externally-accessed relay on-off signal (a central control passive relay output); the panel of the power distribution cabinet is provided with an indicator light signal output and an ammeter current display, and besides, the panel also comprises a total voltage and a total current display, and the voltmeter and the ammeter are provided with analog quantity outputs (4-20 mA).
Claims (6)
1. An electrical control system for catalytic oxidation of a high concentration organic gas tail gas, the electrical control system comprising: the four-channel gas guide device comprises a four-channel gas guide device, a bypass valve, a fan, an electric heater, a power distribution cabinet and an operation box;
the method is characterized in that: the four-channel gas flow guider, the bypass valve, the fan, the electric heating control circuit and the power supply circuit are all arranged in the power distribution cabinet; the operation box is matched with the power distribution cabinet for use and is used for controlling the operation of each loop; the four-way valve used by the four-channel gas flow guider adopts a three-phase motor to drive the lifting structure of the four-channel gas flow guider, and the four-channel gas flow guider is also provided with a safety protection loop unit; the bypass valve is set to be in remote and local control modes; the fan can output an operation state signal and an alarm signal; the electric heater can output an operation state signal and an alarm signal.
2. The electrical control system for catalytic oxidation of high concentration organic gas tail gas according to claim 1, characterized in that: the safety protection loop unit comprises two contactors for controlling the positive and negative rotation of the motor, a mechanical limiting device and a motor protector.
3. The electrical control system for catalytic oxidation of high concentration organic gas tail gas according to claim 2, characterized in that: the bypass valve adopts an integrated butterfly valve with an electric actuating mechanism and adopts a three-phase power supply mode.
4. The electrical control system for catalytic oxidation of high concentration organic gas tail gas according to claim 3, characterized in that: the fan is directly started by a contactor and is provided with a motor protector.
5. The electrical control system for catalytic oxidation of high concentration organic gas tail gas according to claim 4, characterized in that: the electric heating is started by a contactor and is provided with a heat relay.
6. The electrical control system for catalytic oxidation of high concentration organic gas tail gas according to claim 5, characterized in that: the power distribution cabinet can remotely control the operation of the power distribution cabinet through an externally accessed relay on-off signal (a central control passive relay output).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874394.6A CN110772978A (en) | 2019-09-17 | 2019-09-17 | Electrical control system for catalytic oxidation of high-concentration organic gas tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874394.6A CN110772978A (en) | 2019-09-17 | 2019-09-17 | Electrical control system for catalytic oxidation of high-concentration organic gas tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110772978A true CN110772978A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874394.6A Pending CN110772978A (en) | 2019-09-17 | 2019-09-17 | Electrical control system for catalytic oxidation of high-concentration organic gas tail gas |
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| CN (1) | CN110772978A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645682A (en) * | 2009-08-21 | 2010-02-10 | 西南铝业（集团）有限责任公司 | Motor forward and backward rotation protection loop of limited switch |
| KR101645171B1 (en) * | 2015-04-02 | 2016-08-03 | 주식회사 이우이엔티 | NON-DEGRADABLE HAZARDOUS GAS PURIFICATION SYSTEM GENERATED IN THE SEMICONDUCTOR AND VOCs EMISSION PROCESS |
| CN206121521U (en) * | 2016-10-25 | 2017-04-26 | 天津市华邦科技发展有限公司 | Phthalic anhydride tail gas catalytic oxidation reactor |
| CN208019060U (en) * | 2017-12-29 | 2018-10-30 | 中节能太阳能科技哈密有限公司 | The large-scale efficient deashing vehicle of desert photovoltaic plant |
-
2019
- 2019-09-17 CN CN201910874394.6A patent/CN110772978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645682A (en) * | 2009-08-21 | 2010-02-10 | 西南铝业（集团）有限责任公司 | Motor forward and backward rotation protection loop of limited switch |
| KR101645171B1 (en) * | 2015-04-02 | 2016-08-03 | 주식회사 이우이엔티 | NON-DEGRADABLE HAZARDOUS GAS PURIFICATION SYSTEM GENERATED IN THE SEMICONDUCTOR AND VOCs EMISSION PROCESS |
| CN206121521U (en) * | 2016-10-25 | 2017-04-26 | 天津市华邦科技发展有限公司 | Phthalic anhydride tail gas catalytic oxidation reactor |
| CN208019060U (en) * | 2017-12-29 | 2018-10-30 | 中节能太阳能科技哈密有限公司 | The large-scale efficient deashing vehicle of desert photovoltaic plant |
Non-Patent Citations (1)
| Title |
|---|
| 段树华 等: "《电工技能训练》", 31 August 2017, 同济大学出版社 * |
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Application publication date: 20200211 |