CN100563818C - Adsorption agent vacuum suction and regeneration method - Google Patents
Adsorption agent vacuum suction and regeneration method Download PDFInfo
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- CN100563818C CN100563818C CNB2005100294148A CN200510029414A CN100563818C CN 100563818 C CN100563818 C CN 100563818C CN B2005100294148 A CNB2005100294148 A CN B2005100294148A CN 200510029414 A CN200510029414 A CN 200510029414A CN 100563818 C CN100563818 C CN 100563818C
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Abstract
A kind of adsorption agent vacuum suction and regeneration method, mainly solve technical problems such as improving adsorbent dehydration regeneration effect, the used technical solution is, adsorbent reactivation carries out in double tower system, at first be to close advancing of a dry dried tower in the double tower system, outlet, open the bypass valve of this drying tower outlet thereupon, restart vavuum pump suction dried tower inner chamber gas, starting vavuum pump simultaneously, open this drying tower heater, adsorbent in the drying tower is heated, press the setting-up time of reproducing adsorbent, close vavuum pump, bypass valve and heater are finished the adsorbent reactivation operation, adsorbent reaches predetermined best regeneration effect in this drying tower, is applicable to the compressed air adsorbent reactivation operation of various pressure.
Description
Technical field:
The present invention relates to the solid absorbent regeneration or the activation method of a kind of solid absorbent regeneration or process for reactivation, particularly a kind of gases at high pressure.
Background technology:
Compressed Gas, especially compressed air, it is as main power source, be widely used in electric power, metallurgical, field such as chemical industry and national defence, Compressed Gas stores easily, control is convenient during use, good fluidity, and has safety, characteristics such as environmental protection, be considered to be only second to second power source of electric power, but Compressed Gas contains harmful substance and moisture content, thereby often dispose related facility, containing harmful substances as removing gas in modes such as filtrations, and remove the moisture in the Compressed Gas, then is the problem of quite being paid close attention in the art, as being in the system of power source with the high pressure air, its executing agency, valve members etc. all have higher specification requirement, and its corresponding matching surface all has high accuracy and best bright finish, and the moisture content that contains in the compressed air, very easily make these matching surface corrosions, gently then may cause the parts fault, make troubles to maintenance, heavy then can lead to the operation malfunctioning, the great damage of equipment, so that personal injury accident, and for example the moisture content in the compressed air produces the ice knot under cryogenic conditions, so that cause the stifled accident of ice, endanger also very big; Harmfulness at above-mentioned compressed air water content, the dealer takes the measure of moisture content in the various removal Compressed Gas, as methods such as absorption, Xie Chao, freezing, film separation, wherein use wider with the adsorption dry method, this method is to obtain finished product gas (dry gas) with moisture content in the adsorbents adsorb compressed air, and its adsorbent moisture absorption process is physical change, thereby renewable, multiple renovation process has appearred in existing technology, for example:
No hot blow is swept adsorbent reactivation method-existing method, mostly is to adopt the double-tower type alternate cycles to carry out drying mode continuously, and promptly a tower carries out moisture content absorption to Compressed Gas, and another tower is implemented regeneration to adsorbent; No hot blow is swept the adsorbent reactivation method, be characterized in that device structure is simple, reliability is higher, this method is to utilize a certain amount of finished product gas (dry gas) to purge to realize adsorbent reactivation, it is less to consume energy, but finished product gas consumption amount is big, may reach the 5-10% of total finished product tolerance, and is not suitable for being used for higher compression pressure;
The regeneration of heat (oven dry) adsorbent reactivation method-adopt equally double-tower type equipment is arranged, this renovation process is to add heat-adsorbent with high temperature to realize regeneration, its absorption and reproduction operation time are long, but heating-up temperature can be up to 350 ℃, not only the regeneration power consumption greatly, and the also obviously decline of the reliability of equipment, its operation can only manually be finished under the condition, and work efficiency is lower;
Heating and blowing adsorbent reactivation method---adopt the regeneration of double-tower type equipment equally, this renovation process is comprehensive above-mentioned two kinds of methods, and its loss finished product tolerance is less slightly, heating-up temperature is 250 ℃ and lower slightly, but power consumption is still higher, and reliability is lower, be not suitable for gases at high pressure, and complex structure;
Other are as a kind of new renovation process (China Patent No. 89104251.2) of adsorbent distillation desorption process for regenerating (China Patent No. 92103346.X) and adsorption dry material etc., its characteristics are similar substantially with above-mentioned the whole bag of tricks, the latter has advantages such as desorption efficient height, speed be fast, but in the high pressure compressed gas system, the operation sequence complexity, be difficult to adapt to, the former is then close substantially with no hot sweeping method pluses and minuses.
Summary of the invention:
Technical problem to be solved by this invention is, a kind of improved adsorption agent vacuum suction and regeneration method is provided, and it can make the loss of finished product gas narrow-minded, reaches the preferable effect of adsorbent dehydration regeneration and operation reliability height with the simple operations method.
The technical scheme that the present invention solves the problems of the technologies described above employing is: adsorbent reactivation carries out in double tower system, is characterized in comprising the following steps:
Close the compressed air inlet and the outlet of the drying tower in this double tower system;
Open the bypass valve that this drying tower compressed air outlet connects vavuum pump;
Start the vavuum pump operation, aspirate this drying tower inner chamber air, making and forming vacuum in the drying tower is 0Mpa to-0.05MPa;
When starting vavuum pump, open the heater of this drying tower, the adsorbent in the drying tower is heated, heating-up temperature is 50 ℃ to 120 ℃;
Press the setting-up time of reproducing adsorbent, close the bypass valve and the heater of vavuum pump, connection vavuum pump;
Finish the adsorbent reactivation operation, adsorbent reaches predetermined best regeneration effect in this drying tower.
The characteristic that the present invention utilizes the vapourizing temperature of compressed gas water when air pressure reduces to decrease, in to adsorbent slightly heated (below 100 ℃), utilize vacuum technique to reduce the interior air pressure of drying tower, thereby the adsorbed moisture content of adsorbent can be vaporized fast, adsorbent can reach good dehydration regeneration effect, and operation sequence is simple, handling safety, reliable, and can adapt to high pressure air.
Description of drawings:
Fig. 1 is an adsorption agent vacuum suction and regeneration method FB(flow block) of the present invention.
Fig. 2 is the equipment double tower system schematic diagram of flow process shown in Figure 1.
The specific embodiment:
With reference to Fig. 1,2, adsorption agent vacuum suction and regeneration method is imported and exported by closing tower, open bypass valve, vacuumize and heat, stop to vacuumize heating and adsorbent reactivation supervisor and form, its corresponding apparatus double tower system includes drying tower 1,1 ', heater 2,2 ', vavuum pump 3, pressure-relief valve 4, accurate filter 5, fore filter 6, post-filter 7, valve 11,12,13,14,15,16,17,18 and respective line.This double tower system working method and existing double tower system are same or similar, be that its compressed-air actuated work loop (shown in Fig. 2 solid arrow) is through fore filter, accurate filter 5, the import of the valve 11 self-desiccation towers of opening 1 ' enters drying tower 1 ' inner chamber, in tower under the suction-operated of adsorbent, absorb the moisture content in the compressed air, outlet at drying tower 1 ' is exported finished product gas (dry gas) through open valve 17 and post-filter 7, in said process, each valve 12 in the double tower system, 13,14,15,16,18 all are in closed condition, can be in the adsorbent reactivation mode of operation with drying tower 1 ' 1 in another drying tower in parallel, and the adsorbent of acquisition regeneration, after drying tower 1 ' cuts out, open valve 12,18 make drying tower 1 replace dry dried tower 1 ', provide finished product gas to system, form the double-tower type alternate cycles and carry out dry mode continuously.
Above-mentioned adsorption agent vacuum suction regeneration comprises the following steps: (with reference to Fig. 1,2)
1, close tower and import and export, in service at above-mentioned double tower system, when a drying 1 ' is in the process of carrying finished product gas, in the double tower system in another drying tower 1 compressed air inlet and outlet all be in closed condition, promptly Fig. 2 shows that valve 12 and valve 18 close; Open valve 14 is disposed to the waste gas recycling can with drying tower 1 inner chamber waste gas through pressure-relief valve 4, closes subsequently;
2, open bypass valve 16, in the exit of drying tower 1, on the compressed air major loop, be provided with a bypass that is connected with vavuum pump 3, this bypass is provided with valve 16, when carrying out adsorption agent vacuum suction regeneration operation, must open bypass valve 16 earlier;
3, vacuumize, after opening bypass 16, can start vavuum pump 3 operations, this moment, drying tower 1 inner chamber gas was at vacuum state, moisture content vapourizing temperature in the drying tower 1 in the adsorbent reduces, be that adsorbent is to resolve under low partial pressure, vavuum pump suction dried tower 1 inner chamber gas (comprising water vapour) thus obtain preferable dehydration regeneration effect, its vacuum that vacuumizes is 0MPa to-0.05MPa; The gas flow direction that vacuumizes is shown in Fig. 2 dotted arrow;
4, heating, when starting vavuum pump, open the heater 2 of drying tower 1, adsorbent to drying tower 1 inner chamber heats, and adsorbent dewaters except that above-mentioned low pressure, adds proper temperature again, the moisture content vaporization rate can further improve in the adsorbent, the dehydration regeneration effect can further improve, and this moment, the heating-up temperature of heater was 50 ℃ to 120 ℃, thereby the required energy consumption of regenerating is also little;
5, stop to vacuumize, heating, quality according to compressed air input drying tower 1, demand with compressed air finished product gas, vacuumize and the heating setpoint corresponding work time above-mentioned, usually should can be set at 1 hour to 5 hours the time, promptly in this setting-up time, method of the present invention can provide the finished product that meets user's needs gas;
6, adsorbent reactivation after stopping to vacuumize and heating, is promptly finished the adsorbent reactivation operation, and adsorbent reaches predetermined best regeneration effect in this drying tower.
When system replaced, drying tower 1 entered compressed air for the operation of finished product gas, and drying tower 1 ' enters the regeneration operation that adsorbent vacuumizes heating, and its process is finished identical with above-mentioned drying tower 1 operation;
Each composition and existing equipment are same or similar in the system, and each valve member can adopt magnetic valve to realize far distance controlled or control automatically, the operation of being more convenient for, also available hand-operated valve simplified assembly structure.
Adsorption agent vacuum suction and regeneration method provided by the invention is applicable to the compressed air adsorbent reactivation operation of various pressure, is particularly useful for high pressure air.
Claims (1)
1, a kind of adsorption agent vacuum suction and regeneration method, adsorbent reactivation carries out in double tower system, it is characterized in that comprising the following steps:
A. close the compressed air inlet and the outlet of the drying tower in this double tower system;
B. open the bypass valve that this drying tower compressed air outlet connects vavuum pump;
C. start vavuum pump fortune and draw, aspirate this drying tower inner chamber air, make and be evacuated to 0Mpa to 0.05MPa in the drying tower;
D. when starting vavuum pump, open the heater of this drying tower, the adsorbent in the drying tower is heated, heating-up temperature is 50 ℃ to 120 ℃;
E. press the setting-up time of reproducing adsorbent, close the bypass valve and the heater of vavuum pump, connection vavuum pump;
F. finish the adsorbent reactivation operation, adsorbent reaches predetermined best regeneration effect in this drying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100294148A CN100563818C (en) | 2005-09-05 | 2005-09-05 | Adsorption agent vacuum suction and regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100294148A CN100563818C (en) | 2005-09-05 | 2005-09-05 | Adsorption agent vacuum suction and regeneration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1927450A CN1927450A (en) | 2007-03-14 |
| CN100563818C true CN100563818C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100294148A Expired - Fee Related CN100563818C (en) | 2005-09-05 | 2005-09-05 | Adsorption agent vacuum suction and regeneration method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506096A (en) * | 2012-06-25 | 2014-01-15 | 威格高纯气体设备科技（苏州工业园区）有限公司 | Regenerating device for purifying material of glove box |
| CN111701408A (en) * | 2020-07-27 | 2020-09-25 | 重庆鲍斯净化设备科技有限公司 | High-efficiency adsorption type compressed air drying system |
| CN115608346B (en) * | 2022-09-22 | 2023-11-07 | 中触媒新材料股份有限公司 | System and method for regenerating and activating mixed cresol separation adsorbent |
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| CN1927450A (en) | 2007-03-14 |
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