CN201366306Y - Adsorption type gas purifying device - Google Patents
Adsorption type gas purifying device Download PDFInfo
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- CN201366306Y CN201366306Y CNU2009203010391U CN200920301039U CN201366306Y CN 201366306 Y CN201366306 Y CN 201366306Y CN U2009203010391 U CNU2009203010391 U CN U2009203010391U CN 200920301039 U CN200920301039 U CN 200920301039U CN 201366306 Y CN201366306 Y CN 201366306Y
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Abstract
The utility model relates to an adsorption type gas purifying device, which comprises at least an adsorbing unit, a cooling system and a heating system, wherein each absorbing unit is provided with at least two adsorption towers, a heating cooler is arranged between each two adsorption towers, the adsorption tower and the heating cooler are alternatively connected together in series in each adsorption unit, an air inlet channel of the first absorption tower is connected with a feed gas input and a resurgent gas output, an exhausting channel of the last heating cooler is connected with a feed gas output and a resurgent gas input, and a heat conducting medium channel of the heating cooler is respectively connected with circulated pipelines of the heating system and the cooling system. Since the heating cooler leads resurgent gas to keep higher temperature in a heating process and keep lower temperature in a cooling process, thereby the use amount of resurgent gas is obviously reduced, and meanwhile, resurgent gas can keep lower temperature in a purification process, and the purification effect is better.
Description
Technical field
The utility model relates to a kind of gas purifying equipment, especially a kind of absorption type gas purifying equipment that utilizes the sorbing material absorbing gaseous impurities.
Background technology
The absorption type gas purifying equipment is gas purification field a kind of cleaning equipment commonly used.It utilizes the impurity in the solid adsorption material absorption unstripped gas such as silica gel, active carbon, molecular sieve.When solid adsorption material adsorbs impurity near saturation state, make regneration of adsorbent material by heating, separate, discharge the impurity that is adsorbed, adsorption capacity is recovered in sorbing material cooling back.The absorption type gas purifying equipment adopts two adsorption towers that solid adsorption material is housed to take turns to operate usually.During an adsorption tower job, the another one thermal regeneration cools off standby then.During the sorbing material thermal regeneration, general all is that gas with regeneration usefulness is that regeneration gas is passed through a heater, becomes hot gas, allows this part hot gas by having adsorbed the adsorption tower that impurity, needs are regenerated, make the sorbing material thermal regeneration, emit the impurity of absorption; Use regeneration gas then, without heater, directly by thermal regeneration adsorption tower, sorbing material cooling (cold blowing) is standby.Regeneration gas is generally selected the lustration raw material gas after the purification for use.
Because the specific heat of gas is little, for the sorbing material that makes regenerator just can be by abundant thermal regeneration in the working time of work tower, and be cooled to required temperature, so that work tower is adsorbed can in time be switched when saturated, it is just bigger to be used for the use amount of regeneration gas of thermal regeneration and cold blowing, is generally more than 10% of unstripped gas total amount.Especially for impure more unstripped gas, its sorbing material amount is very big, and needed regeneration tolerance is just bigger, sometimes up to more than 50% of material gas quantity.In order to reduce the regeneration tolerance of regeneration usefulness, a kind of method is to adopt three adsorption towers to take turns to operate, during first adsorption tower work, and second adsorption tower thermal regeneration, the 3rd cooling is standby.Regeneration gas then through the heater heating, enters second adsorption tower heating sorbing material earlier by the 3rd adsorption tower cooling sorbing material.So just prolong the time of heating and cooling, reduced required regeneration tolerance.But when impurity content was high, the use amount of regeneration gas was still very big.Another kind method is that heater is directly inserted the interior heating of adsorption tower sorbing material, so only needs fewer regeneration gas to flow through in tower, in order to strengthen heat transfer and to take away the foreign gas that heating parses.Adopt this method, though can reduce the needed gas of part heating, it is complicated that the structure of adsorption tower becomes, and also will pay special attention to control heating-up temperature during operation, otherwise overheated easily near the sorbing material of heater; In addition, required regeneration tolerance is still bigger during cooling.
The utility model content
Technical problem to be solved in the utility model provides a kind of absorption type gas purifying equipment, and this cleaning equipment can effectively reduce the use amount of regeneration gas.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of absorption type gas purifying equipment, comprise at least one absorbing unit, cooling system and heating system, described each absorbing unit has at least two adsorption towers, is equipped with heater between per two adsorption towers;
In each absorbing unit inside:
The exhaust passage of first adsorption tower is connected with the inlet channel of primary heater, and the exhaust passage of primary heater is connected with the inlet channel of second adsorption tower, is connected to last adsorption tower in such a way successively;
The unstripped gas input port is connected with the inlet channel of first adsorption tower, and the exhaust passage of last adsorption tower is connected with the unstripped gas delivery outlet, and interface channel is provided with control valve;
The regeneration gas input port is connected with the exhaust passage (also being the inlet channel of regeneration gas) of last adsorption tower, and the inlet channel of first adsorption tower (also being the exhaust passage of regeneration gas) is connected with the regeneration gas delivery outlet, and interface channel is provided with control valve;
The circulation line of described heating system is connected with the heat-conducting medium passage of each heater, and interface channel is provided with control valve.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, be equipped with cooler between per two adsorption towers;
In each absorbing unit inside:
The exhaust passage of first adsorption tower is connected with the inlet channel of first cooler, and the exhaust passage of first cooler is connected with the inlet channel of second adsorption tower, is connected to last adsorption tower in such a way successively;
The circulation line of described cooling system is connected with the heat-conducting medium passage of each cooler, and interface channel is provided with control valve.
Further, described heater and cooler are the heating cooler that integrates.When needing heating, make the thermal conductance thermal medium that heated by heating the heat-conducting medium passage of cooler; When needing refrigeration, make the cold heat-conducting medium that cooled off by heating the heat-conducting medium passage of cooler.
Further, described absorbing unit is at least two.Each absorbing unit takes turns to operate.
Further, the absorption type gas purifying equipment also comprises total heater; The inlet channel of total heater is connected with the inlet channel (also being the exhaust passage of regeneration gas) of each absorbing unit first adsorption tower, the exhaust passage of total heater is connected with the exhaust passage (also being the inlet channel of regeneration gas) of each last adsorption tower of absorbing unit, and interface channel is provided with control valve; The heat-conducting medium passage of total heater is connected with the circulation line of described heating system.Like this, be used to cool off the regeneration gas of previous absorbing unit, enter total heater after being discharged, after total heater heating, be used for again next absorbing unit is heated, further realized the recycling of regeneration gas, effectively utilized the amount of residual heat will of cooling with regeneration gas.
Between described each absorbing unit, the heating cooler connects in parallel, and the heating cooler that is together in parallel is connected with total heater series connection and then with the circulation line of heating system.
Further, the absorption type gas purifying equipment also comprises total cooler; The inlet channel of total cooler is connected with the exhaust passage of each last adsorption tower of absorbing unit, and interface channel is provided with control valve, and the exhaust passage of total cooler is connected with the unstripped gas delivery outlet; The heat-conducting medium passage of total cooler is connected with the circulation line of described cooling system.Total cooler cools off the unstripped gas after purifying, and uses for next step operation.Part in purification and the cooled unstripped gas can be used as regeneration gas and directly adsorption tower is cooled off.
Between described each absorbing unit, the heating cooler connects in parallel, and the heating cooler that is together in parallel is connected with total cooler series connection and then with the circulation line of refrigeration system.
Further, described each absorbing unit has two adsorption towers.
Further, described absorbing unit has three.
Because the heating cooler has carried out secondary or heating or cooling more than the secondary to regeneration gas in heating or cooling procedure, can keep higher temperature during regeneration gas heating sorbing material, can keep lower temperature during the cooling sorbing material, thereby reduce the use amount of regeneration gas.Owing to heat the effect of cooler, unstripped gas can keep lower temperature when being adsorbed material absorption impurity simultaneously, and this just makes sorbing material that better adsorption capacity can be arranged, and has improved the effect of adsorption cleaning.
Description of drawings
Fig. 1 is the structure chart of the utility model specific embodiment;
Fig. 2 is the partial enlarged drawing of an absorbing unit in the utility model specific embodiment.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
As shown in Figure 1 and Figure 2, the absorption type gas purifying equipment is made up of three absorbing units, a cooling system and a heating system and corresponding connecting pipe.Each absorbing unit of described three absorbing units all has first, second two adsorption towers and the middle heating cooler between two adsorption towers.
In described each absorbing unit:
The exhaust passage of the first adsorption tower 1-1,2-1,3-1 is connected with the inlet channel of heating cooler H1, H2, H3, and the exhaust passage of heating cooler H1, H2, H3 is connected with the inlet channel of the second adsorption tower 1-2,2-2,3-2;
Unstripped gas input port 101 is connected with the inlet channel of the first adsorption tower 1-1,2-1,3-1 by unstripped gas intake valve 1,7,13, and the exhaust passage of the second adsorption tower 1-2,2-2,3-2 is connected with unstripped gas delivery outlet 102 by unstripped gas air bleeding valve 2,8,14;
Regeneration gas input port 103 is connected with the exhaust passage (also being the inlet channel of regeneration gas) of the second adsorption tower 1-2,2-2,3-2 by regeneration gas cold blowing valve 3,9,15, and the inlet channel of the first adsorption tower 1-1,2-1,3-1 (also being the exhaust passage of regeneration gas) is connected with regeneration gas delivery outlet 104 by regeneration gas air bleeding valve 6,12,18.
Above-mentioned heating cooler also can be substituted by independently heater and cooler, but uses the heating cooler that integrates to help making equipment to be simplified more.Cooler wherein or heater also can only keep one, and just its performance is poor slightly, and these equivalent variations all should fall into protection domain of the present utility model.
The absorption type gas purifying equipment also comprises total heater H 5 and total cooler H4.
The inlet channel of total heater H 5 is connected with the inlet channel (also being the exhaust passage of regeneration gas) of each absorbing unit first adsorption tower 1-1,2-1,3-1 respectively by the regeneration gas heating valve 4,10,16 of each absorbing unit, and the exhaust passage of total heater H 5 is connected with the exhaust passage (also being the inlet channel of regeneration gas) of each absorbing unit second adsorption tower 1-2,2-2,3-2 respectively by the regeneration gas hot blow valve 5,11,17 of each absorbing unit.Like this, be used to cool off the regeneration gas of previous absorbing unit, enter total heater after being discharged, after total heater heating, be used for again next absorbing unit is heated.
The inlet channel of total cooler H4 is connected with the exhaust passage of each absorbing unit second adsorption tower 1-2,2-2,3-2 respectively by the unstripped gas air bleeding valve 2,8,14 of each absorbing unit, and the exhaust passage of total cooler H5 is connected with the unstripped gas delivery outlet.
The heating system of embodiment comprises thermal conductance thermal medium pump P1, heating furnace R.The outlet conduit of thermal conductance thermal medium pump P1 is connected with the thermal conductance thermal medium inlet duct of heating furnace R, the thermal conductance thermal medium outlet conduit of heating furnace R advances system valve 19 by the thermal conductance thermal medium and is connected with the heat-conducting medium passage of total heater H 5, thermal conductance thermal medium by each absorbing unit advances system valve R1, R2, R3 and is connected with the heat-conducting medium passage of each absorbing unit heating cooler H1, H2, H3 respectively again, and then go out system valve R4, R5 with the thermal conductance thermal medium respectively, R6 is connected; The thermal conductance thermal medium goes out system valve R4, R5, R6 is connected with the inlet of thermal conductance thermal medium pump P1.The thermal conductance thermal medium adopts conduction oil, and heating furnace is that combustion gas adds hot oil furnace, is fuel with the natural gas, can be with heat-conducting oil heating to 250-260 ℃.
The cooling system of embodiment comprises cold heat-conducting medium pump P2, refrigeration machine L.The outlet conduit of cold heat-conducting medium pump P2 is connected with the cold heat-conducting medium inlet duct of refrigeration machine L, the cold heat-conducting medium outlet conduit of refrigeration machine L advances system valve 20 by cold heat-conducting medium and is connected with the heat-conducting medium passage of total cooler H4, cold heat-conducting medium by each absorbing unit advances system valve L1, L2, L3 and is connected with the heat-conducting medium passage of each absorbing unit heating cooler H1, H2, H3 respectively again, and then go out system valve L4, L5 with cold heat-conducting medium respectively, L6 is connected; Cold heat-conducting medium goes out system valve L4, L5, L6 is connected with the inlet of cold heat-conducting medium pump P2.Cold heat-conducting medium also adopts the conduction oil same with the thermal conductance thermal medium, and refrigeration machine L is a space division system cooling driers commonly used, conduction oil can be as cold as about 2 ℃.
In the present embodiment, the sorbing material in the adsorption tower is a molecular sieve; Unstripped gas is a natural gas, has been pre-chilled to 5 ℃, needs to remove residual moisture and the carbon dioxide impurities that wherein contains; Regeneration gas is the natural gas after purifying.
Before device starts, molecular sieve with first absorbing unit two adsorption tower 1-1,1-2 finishes with nitrogen thermal regeneration and cooling earlier, it can be worked, the molecular sieve of second absorbing unit two adsorption tower 2-1,2-2 can be handled, and the molecular sieve of the 3rd absorbing unit two adsorption tower 3-1,3-2 can be to have used the nitrogen thermal regeneration but needed to cool off.
Open the thermal conductance thermal medium that the thermal conductance thermal medium advances system valve 19, second absorbing unit and advance system valve R2 and go out system valve R5, conduction oil by pump P1 pressurization, is entered heating furnace R and is heated to 250 ℃～260 ℃; Conduction oil after the heating enters the heat-conducting medium passage of total heater H 5, valve R2 and second absorbing unit heating cooler H2 successively through valve 19, and then gets back to pump P1 circulation through valve R5 and heat;
Open the cold heat-conducting medium that cold heat-conducting medium advances system valve 20, the first, the 3rd absorbing unit and advance system valve L1, L3 and go out system valve L4, L6, conduction oil by pump P2 pressurization, is entered refrigeration machine L and is cooled to about 2 ℃; Cooled conduction oil enters cooler H4 through valve 20, be divided into two-way then, lead up to valve L1, enter the heating cooler H1 of first absorbing unit, get back to pump P2 circulation cooling by valve L4 again, another road enters the heating cooler H3 of the 3rd absorbing unit by valve L3, gets back to pump P2 circulation cooling by valve L6 again.
Open regeneration gas cold blowing valve 15, the regeneration gas heating valve 16 of the 3rd absorbing unit, and regeneration gas hot blow valve 11, the regeneration gas drain valve 12 of second absorbing unit.Regeneration gas enters the second adsorption tower 3-2 of the 3rd absorbing unit from regeneration gas input port 103, the sorbing material of cooling the inside, 3-2 comes out from adsorption tower, the temperature recovery of regeneration gas, enter again the 3rd absorbing unit heating cooler H3, be heated cooler H3 cooling, enter the first adsorption tower 3-1 of the 3rd absorbing unit then, the sorbing material of cooling the inside; 3-1 comes out from adsorption tower, regeneration gas is through regeneration gas heating valve 16, enter total heater H 5, by total heater H 5 heating, then, the regeneration gas of heat enters the second adsorption tower 2-2 of second absorbing unit by regeneration gas hot blow valve 11, the sorbing material of heating the inside, 2-2 comes out from adsorption tower, and the temperature step-down of regeneration gas enters the heating cooler H2 of second absorbing unit again, be heated cooler H2 heating, and then enter the sorbing material of the first adsorption tower 2-1 heating the inside of second absorbing unit, and come out from adsorption tower 2-1 at last, enter regeneration gas delivery outlet 104 through regeneration gas drain valve 12.The regeneration gas of discharging can be used as the fuel gas of heating furnace.
Open the unstripped gas intake valve 1 and the unstripped gas air bleeding valve 2 of first absorbing unit, be pre-chilled to the first adsorption tower 1-1 that 5 ℃ unstripped gas enters first absorbing unit, impurity is adsorbed in adsorption tower, the unstripped gas temperature can raise, after coming out from the first adsorption tower 1-1, the heating cooler H1 that unstripped gas enters first absorbing unit is cooled, cooled unstripped gas enters the second adsorption tower 1-2 of first absorbing unit, impurity is further adsorbed in adsorption tower, after coming out from the second adsorption tower 1-2, unstripped gas enters total cooler H4 and is cooled, and cools off at last and purify good unstripped gas to enter unstripped gas delivery outlet 102 and be output, for the use of follow-up workshop section.
First absorbing unit absorption near saturated, the heating of second absorbing unit is finished, when the 3rd absorbing unit cold blowing is finished, close the regeneration gas cold blowing valve 15 and the regeneration gas heating valve 16 of the 3rd absorbing unit, open the unstripped gas intake valve 13 and the unstripped gas air bleeding valve 14 of the 3rd absorbing unit again, allow the unstripped gas after the precooling enter the 3rd absorbing unit adsorption cleaning; The course of work is similar with the course of work of first absorbing unit, no longer repeats here.
Unstripped gas intake valve 1, unstripped gas air bleeding valve 2, the cold heat-conducting medium of closing first absorbing unit advances system valve L1, cold heat-conducting medium goes out system valve L4; The thermal conductance thermal medium of opening first absorbing unit advances system valve R1, the thermal conductance thermal medium goes out system valve R4, regeneration gas drain valve 6, regeneration gas hot blow valve 5; Open the regeneration gas cold blowing valve 9 and the regeneration gas heating valve 10 of second absorbing unit, close the regeneration gas hot blow valve 11 and the regeneration gas drain valve 12 of second absorbing unit, the thermal conductance thermal medium of closing second absorbing unit advances system valve R2, the thermal conductance thermal medium goes out system valve R5, and the cold heat-conducting medium of opening second absorbing unit advances system valve L2, cold heat-conducting medium goes out system valve L5.At this moment, regeneration gas with regard to earlier through second absorbing unit to the adsorption tower cooling of lowering the temperature, through first absorbing unit adsorption tower hot reactivation is blown down again.Process and foregoing the 3rd absorbing unit cooling cooling are blown down similar process through the second absorbing unit hot reactivation again, also no longer repeat here.
According to the method described above, three groups of adsorption towers take turns to operate, and have realized the process of the continuous purification of unstripped gas, have improved adsorption effect simultaneously, and have reduced the required tolerance of regenerating significantly.The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. an absorption type gas purifying equipment comprises at least one absorbing unit, cooling system and heating system, it is characterized in that: described each absorbing unit has at least two adsorption towers, is equipped with heater between per two adsorption towers;
In each absorbing unit inside:
The exhaust passage of first adsorption tower (1-1,2-1,3-1) is connected with the inlet channel of primary heater (H1, H2, H3), the exhaust passage of primary heater (H1, H2, H3) is connected with the inlet channel of second adsorption tower (1-2,2-2,3-2), is connected to last adsorption tower in such a way successively;
Unstripped gas input port (101) is connected with the inlet channel of first adsorption tower (1-1,2-1,3-1), and the exhaust passage of last adsorption tower (1-2,2-2,3-2) is connected with unstripped gas delivery outlet (102), and interface channel is provided with control valve;
Regeneration gas input port (103) is connected with the exhaust passage of last adsorption tower (1-2,2-2,3-2), and the inlet channel of first adsorption tower (1-1,2-1,3-1) is connected with regeneration gas delivery outlet (104), and interface channel is provided with control valve;
The circulation line of described heating system is connected with the heat-conducting medium passage of each heater, and interface channel is provided with control valve.
2. absorption type gas purifying equipment according to claim 1 is characterized in that: be equipped with cooler between per two adsorption towers;
In each absorbing unit inside:
The exhaust passage of first adsorption tower (1-1,2-1,3-1) is connected with the inlet channel of first cooler (H1, H2, H3), the exhaust passage of first cooler (H1, H2, H3) is connected with the inlet channel of second adsorption tower (1-2,2-2,3-2), is connected to last adsorption tower in such a way successively;
The circulation line of described cooling system is connected with the heat-conducting medium passage of each cooler, and interface channel is provided with control valve.
3. absorption type gas purifying equipment according to claim 2 is characterized in that: described heater and cooler are the heating cooler that integrates.
4. absorption type gas purifying equipment according to claim 3 is characterized in that: described absorbing unit is at least two.
5. absorption type gas purifying equipment according to claim 4 is characterized in that: also comprise total heater (H5);
The inlet channel of total heater (H5) is connected with the inlet channel of each absorbing unit first adsorption tower (1-1,2-1,3-1), the exhaust passage of total heater (H5) is connected with the exhaust passage of last adsorption tower of each absorbing unit (1-2,2-2,3-2), and interface channel is provided with control valve;
The heat-conducting medium passage of total heater (H5) is connected with the circulation line of described heating system.
6. absorption type gas purifying equipment according to claim 5, it is characterized in that: between described each absorbing unit, the heating cooler connects in parallel, and the heating cooler that is together in parallel is connected with total heater (H5) series connection and then with the circulation line of heating system.
7. absorption type gas purifying equipment according to claim 4 is characterized in that: also comprise total cooler (H4);
The inlet channel of total cooler (H4) is connected with the exhaust passage of last adsorption tower of each absorbing unit (1-2,2-2,3-2), and interface channel is provided with control valve, and the exhaust passage of total cooler (H4) is connected with unstripped gas delivery outlet (102);
The heat-conducting medium passage of total cooler (H4) is connected with the circulation line of described cooling system.
8. absorption type gas purifying equipment according to claim 7, it is characterized in that: between described each absorbing unit, the heating cooler connects in parallel, and the heating cooler that is together in parallel is connected with total cooler (H4) series connection and then with the circulation line of cooling system.
9. according to each described absorption type gas purifying equipment in the claim 1 to 8, it is characterized in that: described each absorbing unit has two adsorption towers.
10. according to each described absorption type gas purifying equipment in the claim 1 to 8, it is characterized in that: described absorbing unit has three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203010391U CN201366306Y (en) | 2009-03-04 | 2009-03-04 | Adsorption type gas purifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203010391U CN201366306Y (en) | 2009-03-04 | 2009-03-04 | Adsorption type gas purifying device |
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| Publication Number | Publication Date |
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| CN201366306Y true CN201366306Y (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009203010391U Expired - Fee Related CN201366306Y (en) | 2009-03-04 | 2009-03-04 | Adsorption type gas purifying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224766A (en) * | 2018-09-29 | 2019-01-18 | 成都赛普瑞兴科技有限公司 | A kind of series-connected regenerative temperature-change adsorption tower and system |
-
2009
- 2009-03-04 CN CNU2009203010391U patent/CN201366306Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224766A (en) * | 2018-09-29 | 2019-01-18 | 成都赛普瑞兴科技有限公司 | A kind of series-connected regenerative temperature-change adsorption tower and system |
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Granted publication date: 20091223 Termination date: 20180304 |
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