CN104772000A - Active carbon bed safety protection system - Google Patents
Active carbon bed safety protection system Download PDFInfo
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- CN104772000A CN104772000A CN201510137327.8A CN201510137327A CN104772000A CN 104772000 A CN104772000 A CN 104772000A CN 201510137327 A CN201510137327 A CN 201510137327A CN 104772000 A CN104772000 A CN 104772000A
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- Separation Of Gases By Adsorption (AREA)
Abstract
The present invention relates to an active carbon safety protection system. According to the system, the bypass system is connected in the front and on the rear of the pipelines of the active carbon bed, the active carbon bed area is provided with the temperature gauge, the second valve and the third valve are closed and the first valve and the fourth valve are opened when the temperature is at the normal working temperature, and gas is adsorbed by the active carbon bed and then is discharged; when temperature runaway, fire disaster generation and other conditions occur in the active carbon layer, the temperature measured by the temperature gauge is higher than the set temperature, the second valve and the third valve are opened and the first valve and the fourth valve are closed, the high-temperature gas circulates in the bypass closed loop system under the assisted force of the fan, the heat exchanger arranged in the bypass system cools the high-temperature gas circularly discharged by the active carbon bed through the cooling water and finally achieves the cooling on the bed layer, and when the bed layer temperature decreases to less than or equal to the safe temperature, the first valve and the fourth valve can be opened and the second valve and the third valve can be closed so as to normally work. With the system of the present invention, the fire disaster generation safety problem of the active carbon bed can be effectively controlled, the damage effect on the bed layer is low, the equipment is simple, and the automated management can be achieved.
Description
Technical field
The present invention relates to active-carbon bed technical field of safety protection in the technical process such as chemical industry, environmental protection, especially relate to a kind of safety system caught fire for active-carbon bed high temperature.
Background technology
In the technical process such as chemical industry, environmental protection, active-carbon bed absorption is used widely, because charcoal is originally as undesirable heat conductor, be easy to occur heat accumulation phenomenon, at gases such as active-carbon bed absorption high concentrations of gas or ketones, or the bed of absorption quantity of organic idle after restart when waiting sight, easily there is layer of charcoal temperature runaway and the abnormal conditions such as to catch fire; , at thermal desorption process generation adsorbent bed temperature control, the accident of catching fire is of common occurrence simultaneously.
From the angle of safety; this kind equipment should be equipped with Special safety safeguard measure; guarantee active-carbon bed safe operation; current equipment component adopts the mode of fire water spray to carry out cooling fire extinguishing, but the method is destroyed comparatively large to bed, and produces more mixing and absorption matter waste water; system recovery time is longer; impact is produced, and what also have reckons without problems at all, suffers heavy losses.Therefore in the urgent need to finding a kind of active-carbon bed safety system; can run into upper bed layer temperature runaway or catch fire situation time efficiently and effectively on bed cooling fire extinguishing simultaneously little on active-carbon bed impact; and less secondary pollution, be convenient to follow-up quick recovery system function.
Summary of the invention
The object of the present invention is to provide a kind of active-carbon bed safety system, to solve in the technical process such as chemical industry, environmental protection, active-carbon bed absorption or desorption process in easily cause temperature control to cause the problem of catching fire.Equipment of the present invention is simple, and operating cost is low, and the active-carbon bed security incident that can effectively prevent temperature control from causing occurs, and can realize automatic management.
Object of the present invention can be achieved through the following technical solutions:
A kind of active-carbon bed safety system, comprise active-carbon bed 5, bypath system and temperature measuring set 6, described bypath system is 5 in parallel with active-carbon bed, the gas feed of active-carbon bed 5 sides connects the first valve 1 by pipeline, the gas vent of opposite side connects the 4th valve 4 by pipeline, described bypath system is by heat exchanger 8, second valve 2 and the 3rd valve 3 form, second valve 2 connects heat exchanger 8 by pipeline, described heat exchanger 8 connects the 3rd valve 3 by pipeline, described second valve 2 is connected to the first valve 1 with on active-carbon bed 5 pipelines be connected, described 3rd valve 3 is connected to the 4th valve 4 with on active-carbon bed 5 pipelines be connected, described active-carbon bed 5 regions are provided with corresponding temperature measuring set 6, described heat exchanger 8 is circulated by cold water 7 and keeps the high-temperature gas in uniform temperature and active-carbon bed 5 to carry out heat exchange, described first valve 1, second valve 2, the 3rd valve 3, the 4th valve 4 and temperature measuring set 6 be connection control system respectively, described bypath system air-blower control air velocity,
When active-carbon bed 5 normally work, the second valve 2, the 3rd valve 3 keep closed condition, and the first valve 1, the 4th valve 4 are held open, and gas is by discharge after active-carbon bed 5 absorption; When measuring tempeature when active-carbon bed 5 is higher than temperature measuring set 6 design temperature, control system is by closedown first valve the 1, the 4th valve 4, open the second valve 2, the 3rd valve 3, high-temperature gas circulates in bypass closed-loop system under blower fan power-assisted, the heat exchanger 8 that bypath system is provided with carries out cooling and the cooling finally realized bed to the high-temperature gas that active-carbon bed circulation is discharged by cooling water 7, when temperature is down to safe temperature, open the first valve 1, the 4th valve 4, close the second valve 2, the 3rd valve 3 normally works.
Active-carbon bed temperature measuring set measuring tempeature by-pass valve control switch, forms an automation reponse system with bypath system.When there are abnormal conditions, form an airtight system by valve transfer bypath system and adsorbent bed, can not make raw materials for production, byproduct gas etc. are leaked.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) the invention solves active-carbon bed temperature in production process and raise easy occurrence temperature problem out of control, ensure active-carbon bed security in use;
(2) the present invention fast, effectively can realize active-carbon bed cooling and fire extinguishing by bypass closed loop heat-exchange system.；
(3) apparatus of the present invention can realize automation mechanized operation, and active-carbon bed temperature measuring set measuring tempeature by-pass valve control switch, forms an automation reponse system with bypath system;
(4) apparatus of the present invention are less to active-carbon bed damage layer, and non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is structural diagrams of the present invention.
Number in the figure: 1,2,3,4 be respectively first, second, third and fourth gas valve, 5 is active-carbon bed, and 6 is temperature measuring set, and 7 is cold water, and 8 is heat exchanger.
Detailed description of the invention
The present invention is further illustrated by reference to the accompanying drawings below by embodiment.
Embodiment 1: as shown in Figure 1, the present invention includes active-carbon bed 5, bypath system and temperature measuring set 6, described bypath system is 5 in parallel with active-carbon bed, the gas feed of active-carbon bed 5 sides connects the first valve 1 by pipeline, the gas vent of opposite side connects the 4th valve 4 by pipeline, and described bypath system is made up of heat exchanger 8, second valve 2 and the 3rd valve 3;
When active-carbon bed 5 are in normal working temperature, the second valve 2, the 3rd valve 3 keep closed condition, and the first valve 1, the 4th valve 4 are held open, and gas is by discharging after active-carbon bed absorption, along with the absorption of high concentrations of gas, active-carbon bed temperature raises gradually, when the measuring tempeature of temperature measuring set 6 is higher than the temperature set, control system is by closedown first valve 1, 4th valve 4, open the second valve 2, 3rd valve 3, such high-temperature gas circulates in bypass closed-loop system under the power-assisted of blower fan, bypath system has heat exchanger 8, heat exchanger by cold water 7 circulate keep uniform temperature and active-carbon bed in high-temperature gas carry out heat exchange, when temperature is down to safe temperature, open the first valve 1, 4th valve 4, close the second valve 2, 3rd valve 3 carries out normal adsorption process.Compared with prior art, the invention solves active-carbon bed intensification adjoint in adsorption process in production process and may cause the problem of temperature control, greatly reduce the possibility that temperature control brings engineering accident, improve active-carbon bed security.Equipment of the present invention is simple, and operating cost is low, can realize automatic management.Proving through test: it has simple, the stable advantage such as practical of structure, is an outstanding technical scheme.
Embodiment 2
Containing cyclohexanone gas adsorbing device example
Certain factory adopts charcoal absorption containing cyclohexanone gas, often temperature runaway occurs, and adopts spray mode to lower the temperature, and recover absorption required time long, now adopt device described in embodiment 1, the amount of loading active carbon on active-carbon bed 5 is 2t, and capacity is 15000m
3/ h, safety device is at active-carbon bed installation 4 thermometers, and setting early warning temperature is 90 DEG C, and circulating ventilation amount is 8000m
3/ h, heat exchanger 8 area is 180m
2.When there is vexed combustion, one of them temperature measuring set 6 gives the alarm in 90 DEG C, starts native system, close first valve 1 of active-carbon bed 5, the 4th valve 4, open recuperated cycle system, the most promotion to 102 DEG C of temperature, then declines rapidly, after about 30 minutes, temperature is down to 50 DEG C, closes bypass heat-exchange system, opens first valve 1 of active-carbon bed 5, the 4th valve 4,, proceed charcoal absorption.
Embodiment 3
Adopt device described in embodiment 1, hot-air stripping desorption apparatus example
Certain factory adopts hot-air stripping Detachment Activity charcoal bed, and the amount of loading active carbon on active-carbon bed 5 is 2t, and capacity is 15000m
3/ h, safety device is install 4 thermometers active-carbon bed 5, and setting early warning temperature is 130 DEG C, and circulating ventilation amount is 8000m
3/ h, heat exchanger 5 area is 180m
2.In 120 DEG C of desorption processes, temperature rises gradually, and one of them temperature measuring set 6 sends warning in 130 DEG C, start native system, close first valve 1 of active-carbon bed 5, the 4th valve 4, open recuperated cycle system, the most promotion to 150 DEG C of temperature, then decline rapidly, after about 30 minutes, temperature is down to 110 DEG C, closes bypass heat-exchange system, open first valve 1 of active-carbon bed 5, the 4th valve 4, proceed hot-air desorption.
Claims (1)
1. an active-carbon bed safety system, it is characterized in that comprising active-carbon bed (5), bypath system and temperature measuring set (6), described bypath system is in parallel with active-carbon bed (5), the gas feed of active-carbon bed (5) side connects the first valve (1) by pipeline, the gas vent of opposite side connects the 4th valve (4) by pipeline, described bypath system is by heat exchanger (8), second valve (2) and the 3rd valve (3) composition, second valve (2) connects heat exchanger (8) by pipeline, described heat exchanger (8) connects the 3rd valve (3) by pipeline, described second valve (2) is connected on the pipeline that the first valve (1) is connected with active-carbon bed (5), described 3rd valve (3) is connected on the pipeline that the 4th valve (4) is connected with active-carbon bed (5), described active-carbon bed (5) region is provided with corresponding temperature measuring set (6), described heat exchanger (8) keeps the high-temperature gas in uniform temperature and active-carbon bed (5) to carry out heat exchange by cold water (7) circulation, described first valve (1), the second valve (2), the 3rd valve (3), the 4th valve (4) and temperature measuring set (6) be connection control system respectively, described bypath system air-blower control air velocity,
When active-carbon bed (5) normally work, second valve (2), the 3rd valve (3) keep closed condition, first valve (1), the 4th valve (4) are held open, and gas is by discharge after active-carbon bed (5) absorption, when the measuring tempeature of active-carbon bed (5) is higher than temperature measuring set (6) design temperature, control system is by closedown first valve (1), 4th valve (4), open the second valve (2), 3rd valve (3), high-temperature gas circulates in bypass closed-loop system under blower fan power-assisted, the heat exchanger (8) that bypath system is provided with carries out cooling and the cooling finally realized bed to the high-temperature gas that active-carbon bed circulation is discharged by cooling water (7), when temperature is down to safe temperature, open the first valve (1), 4th valve (4), close the second valve (2), 3rd valve (3) normally works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137327.8A CN104772000B (en) | 2015-03-27 | 2015-03-27 | A kind of active-carbon bed safety system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510137327.8A CN104772000B (en) | 2015-03-27 | 2015-03-27 | A kind of active-carbon bed safety system |
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| CN104772000A true CN104772000A (en) | 2015-07-15 |
| CN104772000B CN104772000B (en) | 2019-01-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390676A (en) * | 2016-11-17 | 2017-02-15 | 南京大学环境规划设计研究院有限公司 | Energy-saving car air purifying device and process |
| CN107138021A (en) * | 2017-07-12 | 2017-09-08 | 云汇环保科技南通有限公司 | A kind of protection device for active-carbon bed safety applications |
| CN107728566A (en) * | 2017-09-30 | 2018-02-23 | 安徽华星化工有限公司 | House exhaust administers Automated condtrol |
| CN109158085A (en) * | 2018-10-30 | 2019-01-08 | 南京兆博环保科技有限公司 | A kind of dry cooling device and method of active-carbon bed safety |
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| JP2001300244A (en) * | 2000-04-20 | 2001-10-30 | Mitsubishi Kakoki Kaisha Ltd | Adsorption column for pressure fluctuation adsorption device for manufacturing hydrogen |
| CN202044887U (en) * | 2011-03-25 | 2011-11-23 | 天津赛智科技发展有限公司 | Energy-saving efficient purification system for industrial volatilizable organic pollutants |
| CN204034118U (en) * | 2014-07-30 | 2014-12-24 | 中国联合工程公司 | The fire-fighting spraying equipment of a kind of charcoal absorption and desorption catalyzing burner |
| CN204128382U (en) * | 2014-10-20 | 2015-01-28 | 湖南省鑫源新材料股份有限公司 | A kind of Quick cooling structure of large high-temperature resistance furnace |
| CN204582885U (en) * | 2015-03-27 | 2015-08-26 | 同济大学 | A kind of active-carbon bed safety system |
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2015
- 2015-03-27 CN CN201510137327.8A patent/CN104772000B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001300244A (en) * | 2000-04-20 | 2001-10-30 | Mitsubishi Kakoki Kaisha Ltd | Adsorption column for pressure fluctuation adsorption device for manufacturing hydrogen |
| CN202044887U (en) * | 2011-03-25 | 2011-11-23 | 天津赛智科技发展有限公司 | Energy-saving efficient purification system for industrial volatilizable organic pollutants |
| CN204034118U (en) * | 2014-07-30 | 2014-12-24 | 中国联合工程公司 | The fire-fighting spraying equipment of a kind of charcoal absorption and desorption catalyzing burner |
| CN204128382U (en) * | 2014-10-20 | 2015-01-28 | 湖南省鑫源新材料股份有限公司 | A kind of Quick cooling structure of large high-temperature resistance furnace |
| CN204582885U (en) * | 2015-03-27 | 2015-08-26 | 同济大学 | A kind of active-carbon bed safety system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390676A (en) * | 2016-11-17 | 2017-02-15 | 南京大学环境规划设计研究院有限公司 | Energy-saving car air purifying device and process |
| CN107138021A (en) * | 2017-07-12 | 2017-09-08 | 云汇环保科技南通有限公司 | A kind of protection device for active-carbon bed safety applications |
| CN107728566A (en) * | 2017-09-30 | 2018-02-23 | 安徽华星化工有限公司 | House exhaust administers Automated condtrol |
| CN109158085A (en) * | 2018-10-30 | 2019-01-08 | 南京兆博环保科技有限公司 | A kind of dry cooling device and method of active-carbon bed safety |
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| CN104772000B (en) | 2019-01-25 |
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