CN205164491U - Active carbon absorption tower and temperature -detecting device thereof - Google Patents
Active carbon absorption tower and temperature -detecting device thereof Download PDFInfo
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- CN205164491U CN205164491U CN201520746538.7U CN201520746538U CN205164491U CN 205164491 U CN205164491 U CN 205164491U CN 201520746538 U CN201520746538 U CN 201520746538U CN 205164491 U CN205164491 U CN 205164491U
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Abstract
The utility model discloses an active carbon absorption tower and temperature -detecting device thereof, include: protective case installs in active carbon absorption tower, temperature detecting element locates among the protective case, its temperature signal output is equipped with the signal connection device, protective case is last be equipped with the installation postposition in the detection gas pocket in the active carbon absorption tower outside, under the breakage detection state, detect the gas pocket and connect gas tightness detection device, under non - breakage detection state, it is sealed by the sealing member to detect the gas pocket. This temperature -detecting device has the protective case breakage detection function, and it can judge accurately whether protective case breaks or the damage to in time take the repair measure, guarantee that temperature detecting element can receive protective case's protection all the time, ensures the accuracy of testing result.
Description
Technical field
The utility model relates to technical field of metallurgical equipment, especially for the temperature-detecting device of detection of active charcoal adsorption tower internal temperature.The utility model also relates to the activated carbon adsorber being provided with described temperature-detecting device.
Background technology
At present, the SO of sintering circuit flue gas generation
2and NO
xaccount for the overwhelming majority of iron and steel enterprise's total emission volumn, in order to reach flue gas SO
2and NO
xdischarging standards, desulphurization and denitration process must be carried out to sinter fume.
For the sintering device flue gas of steel and iron industry, the desulphurization and denitration device of activated carbon adsorber and Analytic Tower and technique is adopted to be more satisfactory.
Activated carbon adsorber is used for the pollutant comprising oxysulfide, nitrogen oxide and dioxin from sinter fume absorption, and Analytic Tower is used for the hot recycling of active carbon.Activated carbon desulfurization have desulfurization degree high, denitration, de-dioxin, dedusting can be realized simultaneously, do not produce the advantages such as waste water and dregs, be extremely promising flue gas purifying method.
The desulfurization off sulfide effect of temperature in adsorption tower to active carbon plays key effect, Ruo Tanei temperature exceedes maximum temperature restriction, the active carbon in adsorption tower is easily caused to burn, there is adsorption tower and burn tower serious accident, Ruo Tanei temperature is lower than minimum restriction, then the desulfurization off sulfide effect of active carbon is undesirable, and maximum temperature and minimum temperature determine according to current process conditions and active carbon characteristic, current maximum temperature is no more than 165 DEG C, and minimum temperature is not less than 115 DEG C.Therefore the temperature detection in adsorption tower is most important, and the temperature in adsorption tower controls to play key effect to the normal operation of whole system.
At present, generally detect the temperature in adsorption tower with thermocouple, its protective casing is embedded in adsorption tower, and thermocouple inserts protective casing, carrys out the temperature in detection thimble, thus the temperature of adsorption tower detected.But; due to desulphurization system normally run time; active carbon moves from top to bottom; ceaselessly can be rubbed protective casing; and flue gas also can corrosion protection sleeve pipe; therefore through one period of working time; protective casing may be worn and even break; the most serious situation, protective casing directly ruptures from breach or residual seam, thus thermocouple is directly exposed in active carbon; owing to there is no the supporting role of protective casing; thermocouple naturally droops, and point for measuring temperature position also there occurs change, thus causes the temperature that cannot measure original position.If there is crack through wearing and tearing in protective casing; not fracture, active carbon directly and thermocouple ends contact, because active carbon is subject to Action of Gravity Field; move from top to bottom; meeting ceaselessly frictional heat galvanic couple end, after the time is permanent, may cause thermocouple end to damage; thus have influence on the accuracy of thermometric; thermocouple can be caused time serious directly to damage, cannot thermometric, and the adsorption tower temperature-detecting device of existing active carbon desulfurization system cannot judge whether protective casing breaks or damaged.
Therefore, how to judge whether the protective casing of adsorption tower temperature-detecting device breaks or breakage, is those skilled in the art's technical issues that need to address.
Utility model content
The purpose of this utility model is to provide a kind of temperature-detecting device.This temperature-detecting device has protective casing damage testing function; it can judge whether protective casing breaks or breakage exactly; to take repairing measures in time, ensure that detector unit can be subject to the protection of protective casing all the time, guarantee the accuracy of testing result.
Another object of the present utility model is to provide a kind of activated carbon adsorber being provided with described temperature-detecting device.
For achieving the above object, the utility model provides a kind of temperature-detecting device, comprising:
Protective casing, is installed on activated carbon adsorber;
Detector unit, is located in described protective casing, and its temperature measurement signal output is provided with signal connection device;
Described protective casing is positioned at the detection pore outside described activated carbon adsorber after being provided with installation, under damage testing state, described detection pore connects air-tightness detection device, and under non-damaged detcting state, described detection pore is sealed by seal.
Preferably, described air-tightness detection device comprises gas pipeline for being connected with described detection pore and flow detector.
Preferably, described detection pore is provided with the interface connecting described gas pipeline.
Preferably, described signal connection device comprises the socket, detector unit extension lead and the flexible hose that connect successively.
Preferably, described flexible hose is connected to terminal box.
Preferably, described protective casing afterbody is provided with the first flange, and described detector unit afterbody is provided with the second flange, and described first flange and the second flange connect and be bolted.
Preferably, on the protective casing pipeline section of described detection pore between described first flange and described activated carbon adsorber outer wall.
Preferably, described seal is sealing-plug.
Preferably, described detector unit is multi-point hot galvanic couple or multi-point hot resistance.
For realizing above-mentioned second object, the utility model also provides a kind of activated carbon adsorber, comprises inside and is filled with the adsorption tower of active carbon and is located at the temperature-detecting device of described adsorption tower, and described temperature-detecting device is the temperature-detecting device described in above-mentioned any one.
The utility model offers detection pore on the protective casing of temperature-detecting device; this pore is exposed outside adsorption tower; covered with seal at ordinary times; need then to open ventilation when detecting air-tightness; and carry out air-leakage test according to certain flow process; compare analysis by the result of repeated detection, judge that whether it is damaged, efficiently solve the protective casing that cannot judge temperature-detecting device in prior art and whether break or the situation of breakage.When detector unit thermometric occurs abnormal, the damage testing of protective casing can be carried out immediately, or by some cycles timing, damage testing be carried out to protective casing.Like this can the wear intensity of look-ahead protective casing, carry out maintenance work in advance, and can not the operation of influential system, also can not damage detector unit.
Activated carbon adsorber provided by the utility model is provided with described temperature-detecting device, and because described temperature-detecting device has above-mentioned technique effect, the activated carbon adsorber being provided with this temperature-detecting device also should possess corresponding technique effect.
Accompanying drawing explanation
Fig. 1 provides by the utility model the structural representation of temperature-detecting device under non-damaged detcting state;
Fig. 2 be use the utility model provide temperature-detecting device to carry out the flow chart of damage testing to protective casing.
Fig. 3 provides by the utility model the structural representation of temperature-detecting device under damage testing state;
Fig. 4 is the partial enlarged drawing at I position in Fig. 3.
In figure:
11. first star-shaped dust-discharging valve 12. surge tank 13. adsorption tower 14. round roller batcher 15. second star-shaped dust-discharging valves
1. thermocouple 2. protective casing 3. nitrogen pipeline 4. terminal box 6. socket 7. thermocouple extension wire 8. flexible hose 9. pore 10. gas flowmeter
51. first ring flange 52. second ring flanges
Detailed description of the invention
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1, Fig. 1 provides by the utility model the structural representation of temperature-detecting device under non-damaged detcting state.
As shown in the figure, operationally, its active carbon is discharged into surge tank 12 by the first star-shaped dust-discharging valve 11 to activated carbon adsorber, and the active carbon in surge tank 12 is discharged into room in adsorption tower again, active carbon carries out complicated chemical reaction in adsorption tower 13 with flue gas, the SO in absorption flue gas
2and nitrogen oxide, be then discharged on conveyer by round roller batcher 14 and the second star-shaped dust-discharging valve 15.
Temperature-detecting device is used for the internal temperature of detection of active charcoal adsorption tower, and its main part is arranged on adsorption tower inside, and chief component has multi-point hot galvanic couple 1, protective casing 2, terminal box 4, socket 6, thermocouple extension wire 7, flexible hose 8 etc.
Particularly, multi-point hot galvanic couple 1 inserts in protective casing 2, when installing adsorption tower 13, prior pre-buried good protective casing 2, protective casing 2 the foot section brought first ring flange 51, thermocouple 1 inserts protective casing 2, and docked with the first ring flange 51 of protective casing 2 by the second ring flange 52, between two ring flanges, sealing gasket is installed, tight a bolt fixing, thermocouple 1 is by measuring the environment temperature in sleeve pipe, thus measure the internal temperature of adsorption tower 13, temperature measurement signal passes through signal connection device (by socket 6, thermocouple extension wire 7 and flexible hose 8 form) be delivered to terminal box 4.
Whether damaged in order to judge protective casing 2, the utility model is detected by the air-tightness method detecting protective casing 2, concrete mode opens a pore 9 on the protective casing 2 between the ring flange and adsorption tower 13 of temperature-detecting device, this pore 9 is exposed outside adsorption tower 13, require not covered by the heat-insulation layer of adsorption tower 13, so that instrumentation when detecting air-tightness; With sealing-plug, air admission hole 9 being covered at ordinary times, prevent extraneous air from entering into protective casing 2 inner, only just opening sealing-plug when using pore 9.
Please refer to Fig. 2, Fig. 2 be use the utility model provide temperature-detecting device to carry out the flow chart of damage testing to protective casing.
First, carry out the performance reviews such as construction and installation to confirm.According to engineering construction progress, be generally, when adsorption tower 13 is installed, in tower, pre-installs protective casing 2, arrived certain phase, when possessing instrument mounting condition, thermocouple 1 can be installed.After the protective casing 2 of temperature-detecting device installs, need to enter in tower and detect its construction quality, whether the pad being mainly protective casing 2 both sides and adsorption tower 13 inwall is full weld, and whether its welding requirements meets standard.After multipoint thermocouple 1 installs, need detect between protective casing ring flange and the ring flange of thermocouple whether install sealing gasket, whether bolt is tightened.This stage adsorption tower 13 does not have splendid attire active carbon material, is hole capital after selling all securities inspection, will complete at the latest before beginning splendid attire active carbon.
Secondly, protective casing air-leakage test is carried out.Utilizing air admission hole to carry out air-leakage test, whether have crack, breakage, and the sealing between ring flange if can detect protective casing.Timeliness coverage problem can be guaranteed by air-leakage test, before adsorption tower 13 is unkitted active carbon, repair protective casing 2, otherwise repair cumbersome later, must active carbon be laid down, protective casing 2 could be repaired.
Finally, when system is normally run, regularly damage testing is carried out to protective casing.Like this can the wear intensity of look-ahead protective casing 2, carry out maintenance work in advance, and can not the operation of influential system, also can not damage thermocouple 1.When thermocouple 1 thermometric occurs abnormal, need the damage testing carrying out protective casing 2 immediately, or periodically timing detects (as a season).
Please refer to Fig. 3, Fig. 4, Fig. 3 provides by the utility model the structural representation of temperature-detecting device under damage testing state; Fig. 4 is the partial enlarged drawing at I position in Fig. 3.
Owing to can be detected the breakage of protective casing by air-tightness method, air admission hole therefore can be utilized to detect the air-tightness of protective casing, air-leakage test method of work and step as follows:
First, compressed nitrogen is passed into.Open the sealing-plug of air admission hole 9; the compressed nitrogen (also can use other compressed inert) of certain pressure (such as 1.0Mpa need be less than nominal pressure when this protective casing 2 and thermocouple 1 design) is passed into inside protective casing 2.Do not adopt compressed-air actuated reason to be because compressed air also has oxygen, if protective casing 2 breaks, then can increase the oxygen content in adsorption tower, thus have influence on desulfurized effect.
Then, the nitrogen flow situation of change passed through is observed by flow detector.Nitrogen pipeline 3 installs a gas flowmeter 10, show by gas flowmeter 10 flow that nitrogen enters protective casing 2 in real time, if gassy flow after stable is zero in protective casing 2, then illustrate that protective casing 2 air-tightness is good, namely sleeve pipe does not have breakage, and the sealing of ring flange junction is intact; If traffic figure is larger, then protective casing 2 badly broken is described, or sealing is very poor; Traffic figure is less, then illustrate that protective casing 2 has minor damage, or sealing is poor.Before this step starts, the metrical error etc. of flow detector need be confirmed.
Finally, the gas leakage factor of non-tower internal protective cover pipe is got rid of.When nitrogen flow numeral is non-vanishing, gas leak phenomenon is described, now can't have judged that specifically protective casing 2 is damaged, or other leakage problem.First can check air admission hole 9 and flow detector whether good seal, reexamine the interface whether good seal of flange.Such inspection method is common practise, does not make concrete detailed description.After these factors are excluded, can judge that breakage appears in protective casing 2, need to repair in time or change.
Except said temperature checkout gear, the utility model also provides a kind of activated carbon adsorber, it comprises inside and is filled with the adsorption tower of active carbon and is located at the temperature-detecting device of adsorption tower, wherein, temperature-detecting device is temperature-detecting device mentioned above, the concrete structure of adsorption tower, involved by having above, is not just repeating.
Above activated carbon adsorber provided by the utility model and temperature-detecting device thereof are described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands core concept of the present utility model for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (10)
1. a temperature-detecting device, comprising:
Protective casing, is installed on activated carbon adsorber;
Detector unit, is located in described protective casing, and its temperature measurement signal output is provided with signal connection device;
It is characterized in that; described protective casing is positioned at the detection pore outside described activated carbon adsorber after being provided with installation, under damage testing state, described detection pore connects air-tightness detection device; under non-damaged detcting state, described detection pore is sealed by seal.
2. temperature-detecting device according to claim 1, is characterized in that, described air-tightness detection device comprises gas pipeline for being connected with described detection pore and flow detector.
3. temperature-detecting device according to claim 2, is characterized in that, described detection pore is provided with the interface connecting described gas pipeline.
4. temperature-detecting device according to claim 1, is characterized in that, described signal connection device comprises the socket, detector unit extension lead and the flexible hose that connect successively.
5. temperature-detecting device according to claim 4, is characterized in that, described flexible hose is connected to terminal box.
6. temperature-detecting device according to claim 1, is characterized in that, described protective casing afterbody is provided with the first flange, and described detector unit afterbody is provided with the second flange, and described first flange and the second flange connect and be bolted.
7. temperature-detecting device according to claim 6, is characterized in that, on the protective casing pipeline section of described detection pore between described first flange and described activated carbon adsorber outer wall.
8. the temperature-detecting device according to any one of claim 1 to 7, is characterized in that, described seal is sealing-plug.
9. the temperature-detecting device according to any one of claim 1 to 7, is characterized in that, described detector unit is multi-point hot galvanic couple or multi-point hot resistance.
10. an activated carbon adsorber, comprises inside and is filled with the adsorption tower of active carbon and is located at the temperature-detecting device of described adsorption tower, it is characterized in that, described temperature-detecting device is the temperature-detecting device described in any one of the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746538.7U CN205164491U (en) | 2015-09-24 | 2015-09-24 | Active carbon absorption tower and temperature -detecting device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746538.7U CN205164491U (en) | 2015-09-24 | 2015-09-24 | Active carbon absorption tower and temperature -detecting device thereof |
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|---|---|
| CN205164491U true CN205164491U (en) | 2016-04-20 |
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ID=55728530
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595974A (en) * | 2016-08-22 | 2017-04-26 | 上海二十冶建设有限公司 | Detection method for air tightness of activated carbon flue gas cleaning device |
| CN111871177A (en) * | 2020-07-30 | 2020-11-03 | 中国科学院过程工程研究所 | Modular flue gas desulfurization and denitrification purification system and purification method adopting same |
-
2015
- 2015-09-24 CN CN201520746538.7U patent/CN205164491U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595974A (en) * | 2016-08-22 | 2017-04-26 | 上海二十冶建设有限公司 | Detection method for air tightness of activated carbon flue gas cleaning device |
| CN106595974B (en) * | 2016-08-22 | 2019-01-15 | 上海二十冶建设有限公司 | The air-tightness detection method of active carbon flue gas purification device |
| CN111871177A (en) * | 2020-07-30 | 2020-11-03 | 中国科学院过程工程研究所 | Modular flue gas desulfurization and denitrification purification system and purification method adopting same |
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