CN115155249A - Method and device for recovering special gas adsorbed by molecular sieve - Google Patents
Method and device for recovering special gas adsorbed by molecular sieve Download PDFInfo
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- CN115155249A CN115155249A CN202211078129.5A CN202211078129A CN115155249A CN 115155249 A CN115155249 A CN 115155249A CN 202211078129 A CN202211078129 A CN 202211078129A CN 115155249 A CN115155249 A CN 115155249A
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- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- B01D53/002—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 by condensation
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2253/10—Inorganic adsorbents
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- B01D2253/116—Molecular sieves other than zeolites
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- B01D2257/55—Compounds of silicon, phosphorus, germanium or arsenic
- B01D2257/553—Compounds comprising hydrogen, e.g. silanes
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- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
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Abstract
The invention discloses a method and a device for recovering special gas adsorbed by a molecular sieve, and belongs to the technical field of special gas recovery. A device for recovering special gas adsorbed by a molecular sieve comprises a molecular sieve adsorption column, a condenser and a gas pump; the invention blows turbine blades when non-impurity gas circulates in the molecular sieve adsorption column so that the main shaft drives the stirring rod to stir the zeolite molecular sieve in the molecular sieve adsorption column, so that the zeolite molecular sieve is fully contacted with the non-impurity gas, the desorption and desorption efficiency of the zeolite molecular sieve is improved, the purification efficiency is further improved, meanwhile, the moisture in the zeolite molecular sieve in the molecular sieve adsorption column is dried through the temperature of the absorption heating tank, the adsorption effect of the zeolite molecular sieve on the moisture in the special gas is improved, and steam or heat generated by drying is condensed through the second communicating pipe, so that the phenomenon that the zeolite molecular sieve is mixed in a condenser and is mixed with the liquid special gas is avoided, and the purification effect of the special gas is further improved.
Description
Technical Field
The invention relates to the technical field of special gas recovery, in particular to a method and a device for recovering special gas adsorbed by a molecular sieve.
Background
In the field of high-purity special gases, such as arsine, phosphine, germane and the like, a molecular sieve is generally used for removing impurities such as moisture and the like in the special gases; the molecular sieve is used for purification, has the advantages of high efficiency, capability of deeply removing water and other small molecular impurities, capability of being heated and recycled and the like, and is widely applied to purification of various gases; however, the molecular sieve can adsorb a large amount of special gas while adsorbing impurities; for example, arsine passes through an adsorption column with the volume of 100L filled with 4A molecular sieve, and the 4A molecular sieve can adsorb 20-30 kg of arsine while adsorbing water; arsine can be decomposed at 230 ℃, and if the molecular sieve is directly activated, arsine can be directly lost and easily cause the inactivation of the molecular sieve; if the molecular sieve is directly pumped out for replacing and then activated, the molecular sieve adsorbing the arsine enters a tail gas absorption spray tower, so that a large amount of oxidant is consumed, and the arsine in the molecular sieve cannot be recovered;
therefore, ten thousand yuan of loss can be caused by activating a molecular sieve adsorption column with the volume of 100L; especially for germane which is a special gas with high price, the market price of each kg is as high as tens of thousands yuan, and more than ten thousands yuan can be lost when the molecular sieve is activated once; in actual industrial production, the molecular sieve is generally activated once for each 100-200 kg of special gas, and the special gas adsorbed in the molecular sieve cannot be recovered, so that the cost of an enterprise is increased by more than 10%;
in the prior art, application No.: 201910991072.X, application date: 2019.10.17, entitled: a method and apparatus for recovering the special gas adsorbed by molecular sieve features that hydrogen or helium is used as carrier gas, and the gas is blown into the adsorption column of molecular sieve at ordinary temp to impact the special gas in molecular sieve, so directly recovering the special gas from molecular sieve at ordinary temp, resulting in low cost, easy operation, high recovery rate up to 90% or more and high economic benefit. Because the recovery method of the invention does not need heating, other impurities such as moisture and the like absorbed in the molecular sieve are not easy to desorb, so that the recovered special gas has low impurity content and high utilization value; in addition, the carrier gas adopted by the invention does not introduce impurities, and the special gas can be separated from the carrier gas by directly condensing the special gas at low temperature subsequently, and the separated carrier can be directly recycled; therefore, the invention makes up the technical defect that the special gas adsorbed in the molecular sieve can not be directly recovered in the current industry, and also greatly reduces the purification cost of the special gas;
although the purification cost of the special gas is reduced, when the hydrogen or helium is used as carrier gas to blow into the molecular sieve adsorption column at normal temperature, most of zeolite molecular sieves in the molecular sieve adsorption column are in a static state, so that the carrier gas cannot be effectively and fully contacted with the zeolite molecular sieves when passing through the molecular sieve adsorption column, the desorption efficiency of the special gas is low, and the purification efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems that carrier gas cannot be effectively and fully contacted with a zeolite molecular sieve when passing through a molecular sieve adsorption column, so that the desorption efficiency of special gas is low, and the purification efficiency is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a retrieve adsorbed special gas's of molecular sieve device, includes molecular sieve adsorption column, condenser and gas pump, fixedly connected with condenser pipe in the condenser, the end of breathing in and the terminal fixed intercommunication of condenser of gas pump, molecular sieve adsorption column top is linked together through the second connecting pipe with the condenser, still includes: the first connecting pipe is fixedly communicated with the tail end of the molecular sieve adsorption column, an inflation pipe is fixedly communicated with the first connecting pipe, a first valve is mounted on the inflation pipe, a main shaft is rotatably connected in the first connecting pipe, turbine blades are fixedly connected to the circumference of the main shaft, one end of the main shaft extends into the molecular sieve adsorption column, and a stirring rod is fixedly connected to the circumference of the main shaft; one end of the third connecting pipe is fixedly communicated with the condenser, one end of the third connecting pipe, far away from the condenser, is fixedly communicated with the first connecting pipe, and the third connecting pipe is connected with a gas circulator.
In order to facilitate the connection of the main shaft in the first connection pipe, preferably, a connection bracket is fixedly connected in the first connection pipe, and the main shaft is rotatably connected to the connection bracket.
In order to improve the effect of the zeolite molecular sieve on adsorbing the special gas, a heating pipe is further wound and fixedly connected on the molecular sieve adsorption column.
In order to improve the effect of purifying the special gas, further, be fixed the intercommunication on the third connecting pipe and have the air duct, fixedly connected with second communicating pipe on the air duct, air duct and second communicating pipe are located the molecular sieve adsorption column, just air duct and second communicating pipe are the slope form.
In order to improve the effect of purifying the special gas and simultaneously facilitate the water discharge, furthermore, a flow passage is arranged in the inner wall of the molecular sieve adsorption column, the top end of the flow passage inwards penetrates through the inner wall of the molecular sieve adsorption column, the upper end of the flow passage and the inner wall of the penetration part of the molecular sieve adsorption column are fixedly connected with a guide plate, the guide plate is positioned below the second communicating pipe, a reciprocating thread is arranged on the main shaft, a mounting box is fixedly connected in the molecular sieve adsorption column, the mounting box is sleeved on the main shaft, the main shaft is rotatably connected on the mounting box, a sliding plate is in threaded connection on the reciprocating thread of the main shaft, the sliding plate is in the mounting box, a liquid suction pipe and a liquid outlet pipe are respectively and fixedly connected on one side of the lower end of the mounting box, and one end, far away from the mounting box, of the liquid suction pipe is fixedly communicated with the tail end of the flow passage.
Furthermore, one end of the liquid outlet pipe, which is far away from the mounting box, extends to the outside of the molecular sieve adsorption column.
In order to collect water conveniently, it is further, fixedly connected with water storage box on the molecular sieve adsorption column, the fixed intercommunication of the one end that the mounting box was kept away from to the drain pipe is on the water storage box, the fixed intercommunication of water storage box bottom has the drain pipe, install the second valve on the drain pipe.
In order to avoid gas waste, furthermore, water storage box upper end one side fixedly connected with first connecting pipe, the fixed intercommunication of one end that the water storage box was kept away from to first connecting pipe is on first connecting pipe.
In order to facilitate gas recovery, the gas recovery device further comprises a heating tank and a gas cylinder, the gas outlet end of the gas pump is fixedly communicated with one side of the bottom of the heating tank, the top of the heating tank is communicated with the gas cylinder through a third communicating pipe, a heat absorption pipe is fixedly connected to the heating tank in a winding mode, and one end of the heat absorption pipe is fixedly communicated with the heating pipe.
A method for recovering special gas adsorbed by a molecular sieve mainly comprises the following steps:
s1: desorbing and desorbing the special gas in the molecular sieve adsorption column by filling the non-impurity gas into the molecular sieve adsorption column, circulating the non-impurity gas in the molecular sieve adsorption column through a gas circulator, blowing a main shaft to rotate in the molecular sieve adsorption column, stirring the zeolite molecular sieve in the molecular sieve adsorption column, and allowing the mixed gas to enter a condenser through a second connecting pipe;
s2: the condenser condenses the special gas through the condenser pipe to form liquid, and pumps the special gas into the heating tank through the gas pump to be reheated to gaseous state;
s3: the temperature of the heating tank is conducted to the heating pipe through the heat absorption pipe, so that the heating pipe heats the molecular sieve adsorption column, the drying of the zeolite molecular sieve in the molecular sieve adsorption column is accelerated, and the steam or heat generated by the drying is condensed through a third connecting pipe for circulating non-impurity gas;
s4: the water vapor or heat is condensed and then enters the mounting box through the flow channel, and is discharged into the water storage box from the liquid outlet pipe for storage;
s5: the heated gaseous special gas is directly recovered through the gas cylinder.
Compared with the prior art, the invention provides a method and a device for recovering special gas adsorbed by a molecular sieve, and the method and the device have the following beneficial effects: the invention blows turbine blades when non-impurity gas circulates in the molecular sieve adsorption column to enable the main shaft to drive the stirring rod to stir the zeolite molecular sieve in the molecular sieve adsorption column, so that the zeolite molecular sieve is fully contacted with the non-impurity gas, the desorption and desorption efficiency of the zeolite molecular sieve is improved, the purification efficiency is further improved, meanwhile, moisture in the zeolite molecular sieve in the molecular sieve adsorption column is dried through the temperature of the absorption heating tank, the adsorption effect of the zeolite molecular sieve on the moisture in the special gas is improved, steam or heat generated by drying is condensed through the second communicating pipe, the phenomenon that the moisture is mixed in a condenser and the liquid special gas is avoided, and the purification effect of the special gas is further improved.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for recovering a special gas adsorbed by a molecular sieve according to the present invention;
FIG. 2 is a schematic partial structural view of an apparatus for recovering a specific gas adsorbed by a molecular sieve according to the present invention;
FIG. 3 is a schematic structural diagram of the apparatus for recovering the special gas adsorbed by the molecular sieve in FIG. 2A
FIG. 4 is a schematic partial structural view of an apparatus for recovering a specific gas adsorbed by a molecular sieve according to the present invention;
FIG. 5 is a schematic structural diagram of a device for recovering a special gas adsorbed by a molecular sieve in FIG. 4B;
FIG. 6 is a schematic structural diagram of a second connecting pipe and an air duct of the device for recovering the special gas adsorbed by the molecular sieve;
FIG. 7 is a schematic structural diagram of a connecting support of a device for recovering a special gas adsorbed by a molecular sieve according to the present invention.
In the figure: 1. a molecular sieve adsorption column; 11. a first connecting pipe; 110. a stirring rod; 111. a main shaft; 112. a turbine blade; 113. connecting a bracket; 114. an inflation tube; 115. reciprocating screw threads; 116. mounting a box; 1161. a slide plate; 117. a pipette; 118. a liquid outlet pipe; 119. a flow channel; 1190. a baffle; 12. a second connecting pipe; 13. a water storage box; 131. a drain pipe; 132. a first communication pipe; 14. a gas circulator; 141. a third connecting pipe; 15. heating a tube; 2. a condenser; 21. a condenser tube; 221. an air duct; 23. a second communicating pipe; 3. a heating tank; 31. a gas pump; 32. a heat absorbing tube; 33. a third communicating pipe; 4. a gas cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-7, a retrieve device of adsorbed special gas of molecular sieve, includes molecular sieve adsorption column 1, condenser 2 and gas pump 31, fixedly connected with condenser 21 in the condenser 2, the terminal fixed intercommunication of the induction end of gas pump 31 and condenser 2, and molecular sieve adsorption column 1 top is linked together through second connecting pipe 12 with condenser 2, still includes: the first connecting pipe 11 is fixedly communicated with the tail end of the molecular sieve adsorption column 1, the first connecting pipe 11 is fixedly communicated with an inflation pipe 114, a first valve is installed on the inflation pipe 114, a main shaft 111 is connected in the first connecting pipe 11 in a rotating mode, turbine blades 112 are fixedly connected to the upper circumference of the main shaft 111, one end of the main shaft 111 extends into the molecular sieve adsorption column 1, and a stirring rod 110 is fixedly connected to the upper circumference of the main shaft 111; a third connecting pipe 141 with one end fixedly communicated with the condenser 2, wherein one end of the third connecting pipe 141 far away from the condenser 2 is fixedly communicated with the first connecting pipe 11, and the third connecting pipe 141 is connected with a gas circulator 14; a connecting bracket 113 is fixedly connected in the first connecting pipe 11, and the main shaft 111 is rotatably connected to the connecting bracket 113; a heating pipe 15 is fixedly connected on the molecular sieve adsorption column 1 in a winding way; the third connecting pipe 141 is fixedly communicated with an air duct 221, the air duct 221 is fixedly connected with a second communicating pipe 23, the air duct 221 and the second communicating pipe 23 are positioned in the molecular sieve adsorption column 1, and the air duct 221 and the second communicating pipe 23 are inclined; a flow channel 119 is formed in the inner wall of the molecular sieve adsorption column 1, the top end of the flow channel 119 penetrates through the inner wall of the molecular sieve adsorption column 1 inwards, a guide plate 1190 is fixedly connected to the inner wall of the penetration part of the upper end of the flow channel 119 and the molecular sieve adsorption column 1, the guide plate 1190 is positioned below the second communicating pipe 23, a reciprocating thread 115 is formed in the main shaft 111, a mounting box 116 is fixedly connected to the molecular sieve adsorption column 1, the mounting box 116 is sleeved on the main shaft 111, the main shaft 111 is rotatably connected to the mounting box 116, a sliding plate 1161 is in threaded connection with the reciprocating thread 115 of the main shaft 111, the sliding plate 1161 is in the mounting box 116 in a sliding manner, a liquid suction pipe 117 and a liquid outlet pipe 118 are respectively and fixedly connected to one side of the lower end of the mounting box 116, and one end, away from the mounting box 116, of the liquid suction pipe 117 is fixedly communicated with the end of the flow channel 119; one end of liquid outlet pipe 118 far away from mounting box 116 extends to the outside of molecular sieve adsorption column 1; the molecular sieve adsorption column 1 is fixedly connected with a water storage box 13, one end of the liquid outlet pipe 118, which is far away from the mounting box 116, is fixedly communicated with the water storage box 13, the bottom of the water storage box 13 is fixedly communicated with a drain pipe 131, and a second valve is mounted on the drain pipe 131; one side of the upper end of the water storage box 13 is fixedly connected with a first communicating pipe 132, and one end of the first communicating pipe 132 far away from the water storage box 13 is fixedly communicated with the first connecting pipe 11; the gas heating device further comprises a heating tank 3 and a gas bottle 4, wherein the gas outlet end of the gas pump 31 is fixedly communicated with one side of the bottom of the heating tank 3, the top of the heating tank 3 is communicated with the gas bottle 4 through a third communicating pipe 33, a heat absorption pipe 32 is fixedly connected to the heating tank 3 in a winding manner, and one end of the heat absorption pipe 32 is fixedly communicated with the heating pipe 15;
when the device is used, a first valve on the gas filling pipe 114 is opened, non-impurity gas (the non-impurity gas is hydrogen or helium) is filled into the molecular sieve adsorption column 1, the non-impurity gas is blown to the turbine blades 112 when passing through the first connecting pipe 11, so that the main shaft 111 rotates in the molecular sieve adsorption column 1, the zeolite molecular sieve filled in the molecular sieve adsorption column 1 is stirred through the stirring rod 110 when the main shaft 111 rotates, the zeolite molecular sieve moves in the molecular sieve adsorption column 1, the non-impurity gas is fully contacted with the zeolite molecular sieve, and the special gas desorption efficiency in the zeolite molecular sieve is improved;
after the non-impurity gas is filled into the molecular sieve adsorption column 1, desorbing the special gas adsorbed in the zeolite molecular sieve filled in the molecular sieve adsorption column 1, then feeding the special gas and the non-impurity gas into the condenser 2 through the second connecting pipe 12, circulating a condensing medium (the condensing medium is liquid nitrogen, liquid argon or liquid helium) in the condensing pipe 21 in the condenser 2, condensing the special gas and the non-impurity gas fed into the condenser 2 to ensure that the special gas is condensed to be liquid, the non-impurity gas keeps gaseous, further separating the special gas and the non-impurity gas, pumping the separated non-impurity gas into the first connecting pipe 11 again through the gas circulator 14 to ensure that the non-impurity gas is used as a carrier gas for circulation, pumping the condensed special gas into the heating tank 3 by starting the gas pump 31, heating the heating tank 3 by using an electric heating wire to heat the condensed special gas to ensure that the condensed special gas is converted into gaseous, and then directly recovering the gaseous special gas from the gas cylinder 4;
in the recycling process of the non-impurity gas, the temperature of the non-impurity gas mixed in the condenser 2 is reduced after the non-impurity gas enters the condenser 2, under the work of the gas circulator 14, the non-impurity gas in the condenser 2 is pumped back and discharged into the first connecting pipe 11, and the turbine blade 112 is blown to ensure that the main shaft 111 continuously rotates in the molecular sieve adsorption column 1 to stir the zeolite molecular sieve, so that the zeolite molecular sieve is fully contacted with the non-impurity gas, and the desorption and desorption efficiency is improved;
meanwhile, when the heating tank 3 is heated, the heat absorption pipe 32 conducts the temperature of the heating tank 3 to the heating pipe 15, the heating pipe 15 heats the molecular sieve adsorption column 1, and the moisture adsorbed in the zeolite molecular sieve is dried, so that the adsorption effect of the zeolite molecular sieve on the special gas is improved;
meanwhile, when the non-impurity gas with lower temperature enters the second communicating pipe 23 through the gas guide pipe 221, water vapor and heat generated by drying in the molecular sieve adsorption column 1 are condensed, the water vapor is prevented from entering the condenser 2 to be mixed with the special gas, the purity of the separation of the special gas and the non-impurity gas is prevented from being reduced, water drops are formed on the second communicating pipe 23 and the gas guide pipe 221 after condensation, and the water drops slide down from the second communicating pipe 23 to the guide plate 1190 and enter the flow passage 119;
meanwhile, when the main shaft 111 rotates, the sliding plate 1161 on the reciprocating screw 115 is driven to reciprocate up and down on the main shaft 111 and slide in the mounting box 116, the mounting box 116 is rectangular, when the sliding plate 1161 moves up, water in the flow channel 119 is sucked into the mounting box 116 through the liquid suction pipe 117, when the sliding plate 1161 moves down, water in the mounting box 116 is discharged into the water storage box 13 from the liquid outlet pipe 118 for storage (one-way valves are arranged in the liquid suction pipe 117 and the liquid outlet pipe 118), while when the liquid suction pipe 117 sucks water in the flow channel 119, special gas and non-impurity gas in the molecular sieve adsorption column 1 may be sucked and discharged into the water storage box 13 together, gas in the water storage box 13 can be discharged into the molecular sieve adsorption column 1 again through the first connecting pipe 132, so as to avoid waste of gas, and the water in the water storage box 13 is discharged out of the water storage box 13 by opening the second valve on the water discharge pipe 131 when the water is not stopped;
it should be noted that the condensed special gas is heated by the heating tank 3 to be in a gaseous state, so that the gas cylinder 4 is more convenient to recover the special gas, and the temperature of the heating tank 3 is lower than the temperature for decomposing and converting the special gas, so that the special gas is not decomposed and converted when the heating tank 3 heats the special gas;
meanwhile, the heat absorption tube 32 conducts the waste heat of the heating tank 3 to the outside of the heating tank 3 quickly, and preheats the outer wall of the molecular sieve adsorption column 1, so that the moisture in the zeolite molecular sieve in the molecular sieve adsorption column 1 is dried, the generated steam is condensed by the air guide tube 221 and the second communicating tube 23 and enters the flow channel 119, and then the molecular sieve adsorption column 1 is discharged through the liquid outlet tube 118 on the mounting box 116, so that the moisture in the molecular sieve adsorption column 1 is discharged, the moisture cannot accumulate in the molecular sieve adsorption column 1, and the purification effect on the special gas is further improved.
Example 2:
referring to fig. 1-7, a method for recovering a special gas adsorbed by a molecular sieve mainly comprises the following steps:
s1: desorbing and desorbing the special gas in the molecular sieve adsorption column 1 by charging non-impurity gas into the molecular sieve adsorption column 1, circulating the non-impurity gas in the molecular sieve adsorption column 1 through a gas circulator 14, blowing a main shaft 111 to rotate in the molecular sieve adsorption column 1, stirring the zeolite molecular sieve in the molecular sieve adsorption column 1, and allowing the mixed gas to enter a condenser 2 through a second connecting pipe 12;
s2: the condenser 2 condenses the special gas through the condensing pipe 21 to form liquid, and pumps and exhausts the special gas into the heating tank 3 through the gas pump 31 to be reheated to gaseous state;
s3: the temperature of the heating tank 3 is conducted to the heating pipe 15 through the heat absorption pipe 32, so that the heating pipe 15 heats the molecular sieve adsorption column 1, drying of the zeolite molecular sieve in the molecular sieve adsorption column 1 is accelerated, and steam or heat generated by drying is condensed through the third connecting pipe 141 for circulating non-impurity gas;
s4: the water vapor or heat is condensed and enters the mounting box 116 through the flow passage 119, and is discharged from the liquid outlet pipe 118 into the water storage box 13 for storage;
s5: the heated gaseous special gas is directly recovered through the gas cylinder 4.
According to the invention, when non-impurity gas circulates in the molecular sieve adsorption column 1, the turbine blades 112 are blown to enable the main shaft 111 to drive the stirring rod 110 to stir the zeolite molecular sieve in the molecular sieve adsorption column 1, so that the zeolite molecular sieve is fully contacted with the non-impurity gas, the desorption and desorption efficiency of the zeolite molecular sieve is improved, and further the purification efficiency is improved, meanwhile, moisture in the zeolite molecular sieve in the molecular sieve adsorption column 1 is dried through the temperature of the absorption heating tank 3, the adsorption effect of the zeolite molecular sieve on the moisture in the special gas is improved, and steam or heat generated by drying is condensed through the second communicating pipe 23, so that the phenomenon that the zeolite molecular sieve is mixed in the condenser 2 to be mixed with the liquid special gas is avoided, and further the purification effect of the special gas is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a retrieve adsorbed special gas's of molecular sieve device, includes molecular sieve adsorption column (1), condenser (2) and gas pump (31), its characterized in that, fixedly connected with condenser pipe (21) in condenser (2), the end of breathing in and the terminal fixed intercommunication of condenser (2) of gas pump (31), molecular sieve adsorption column (1) top is linked together through second connecting pipe (12) with condenser (2), still includes:
the device comprises a first connecting pipe (11) fixedly communicated with the tail end of the molecular sieve adsorption column (1), wherein an inflation pipe (114) is fixedly communicated with the first connecting pipe (11), a first valve is installed on the inflation pipe (114), a main shaft (111) is rotatably connected in the first connecting pipe (11), turbine blades (112) are fixedly connected to the upper circumference of the main shaft (111), one end of the main shaft (111) extends into the molecular sieve adsorption column (1), and a stirring rod (110) is fixedly connected to the upper circumference of the main shaft (111);
one end of the third connecting pipe (141) is fixedly communicated with the condenser (2), one end, far away from the condenser (2), of the third connecting pipe (141) is fixedly communicated with the first connecting pipe (11), and the third connecting pipe (141) is connected with a gas circulator (14);
a connecting support (113) is fixedly connected in the first connecting pipe (11), and the main shaft (111) is rotatably connected to the connecting support (113);
a heating pipe (15) is wound and fixedly connected on the molecular sieve adsorption column (1);
the third connecting pipe (141) is fixedly communicated with an air duct (221), the air duct (221) is fixedly connected with a second communicating pipe (23), the air duct (221) and the second communicating pipe (23) are positioned in the molecular sieve adsorption column (1), and the air duct (221) and the second communicating pipe (23) are inclined;
runner (119) is seted up in molecular sieve adsorption column (1) inner wall, the top of runner (119) inwards runs through molecular sieve adsorption column (1) inner wall, fixedly connected with guide plate (1190) on runner (119) upper end and molecular sieve adsorption column (1) run through the department inner wall, guide plate (1190) is located second communicating pipe (23) below, reciprocal screw thread (115) has been seted up on main shaft (111), fixedly connected with mounting box (116) in molecular sieve adsorption column (1), mounting box (116) cup joints on main shaft (111), main shaft (111) rotate to be connected on mounting box (116), threaded connection has slide (1161) on reciprocal screw thread (115) of main shaft (111), slide (1161) sliding connection is in mounting box (116), respectively fixedly connected with pipette (117) and drain pipe (118) on mounting box (116) lower extreme one side, the one end that pipette (117) kept away from mounting box (116) communicates with the end of runner (119) end fixedly.
2. The device for recovering the special gas adsorbed by the molecular sieve as claimed in claim 1, wherein one end of the liquid outlet pipe (118) far away from the mounting box (116) extends to the outside of the molecular sieve adsorption column (1).
3. The device for recovering the special gas adsorbed by the molecular sieve according to claim 2, wherein a water storage box (13) is fixedly connected to the molecular sieve adsorption column (1), one end of the liquid outlet pipe (118) far away from the installation box (116) is fixedly communicated with the water storage box (13), a drain pipe (131) is fixedly communicated with the bottom of the water storage box (13), and a second valve is installed on the drain pipe (131).
4. A device for recovering a special gas adsorbed by a molecular sieve according to claim 3, wherein a first communicating pipe (132) is fixedly connected to one side of the upper end of the water storage box (13), and one end of the first communicating pipe (132) far away from the water storage box (13) is fixedly communicated with the first connecting pipe (11).
5. The device for recovering the special gas adsorbed by the molecular sieve according to claim 4, further comprising a heating tank (3) and a gas cylinder (4), wherein the gas outlet end of the gas pump (31) is fixedly communicated with one side of the bottom of the heating tank (3), the top of the heating tank (3) is communicated with the gas cylinder (4) through a third communicating pipe (33), the heating tank (3) is fixedly connected with a heat absorbing pipe (32) in a winding manner, and one end of the heat absorbing pipe (32) is fixedly communicated with the heating pipe (15).
6. A method for recovering a specialty gas from molecular sieve adsorption, comprising the apparatus for recovering a specialty gas from molecular sieve adsorption of claim 5, comprising the steps of:
s1: non-impurity gas is filled into the molecular sieve adsorption column (1), desorption and desorption are carried out on special gas in the molecular sieve adsorption column (1), the non-impurity gas is circulated in the molecular sieve adsorption column (1) through a gas circulator (14), a main shaft (111) is blown to rotate in the molecular sieve adsorption column (1), zeolite molecular sieves in the molecular sieve adsorption column (1) are stirred, and mixed gas enters a condenser (2) through a second connecting pipe (12);
s2: the condenser (2) condenses the special gas through a condensing pipe (21) to form liquid, and pumps and exhausts the special gas into the heating tank (3) through a gas pump (31) to be reheated to gaseous state;
s3: the temperature of the heating tank (3) is conducted to the heating pipe (15) through the heat absorption pipe (32), so that the heating pipe (15) heats the molecular sieve adsorption column (1), drying of zeolite molecular sieves in the molecular sieve adsorption column (1) is accelerated, and steam or heat generated by drying is condensed through a third connecting pipe (141) for circulating non-impurity gas;
s4: the water vapor or heat is condensed and then enters the mounting box (116) through the flow passage (119), and is discharged into the water storage box (13) from the liquid outlet pipe (118) for storage;
s5: the heated gaseous special gas is directly recovered through the gas cylinder (4).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548364A (en) * | 2019-10-17 | 2019-12-10 | 清远先导材料有限公司 | method and device for recovering special gas adsorbed by molecular sieve |
| CN116850745A (en) * | 2023-07-18 | 2023-10-10 | 珠海安诺医疗科技有限公司 | Pressure swing adsorption staged purification's system oxygen |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02144144A (en) * | 1988-11-28 | 1990-06-01 | Toagosei Chem Ind Co Ltd | Method for regenerating ion-exchange resin |
| JP2003184137A (en) * | 2001-12-19 | 2003-07-03 | Fuji Silysia Chemical Ltd | Water collector |
| US20050191854A1 (en) * | 2004-02-26 | 2005-09-01 | Withers Howard P.Jr. | Process for purification of germane |
| CN209051887U (en) * | 2019-03-01 | 2019-07-02 | 克拉玛依顺通环保科技有限责任公司 | A kind of tank system device for recovering oil and gas |
| CN209109186U (en) * | 2018-11-07 | 2019-07-16 | 马鞍山马钢比欧西气体有限责任公司 | A kind of regenerating molecular sieve air cooling condensation water discharge unit |
| CN211384418U (en) * | 2019-10-17 | 2020-09-01 | 清远先导材料有限公司 | Device for recovering special gas adsorbed by molecular sieve |
| CN214287409U (en) * | 2020-12-11 | 2021-09-28 | 河北力德诚信环保科技有限公司 | Oxidation tail gas carbon fiber adsorbs recovery unit |
| CN113513763A (en) * | 2021-07-29 | 2021-10-19 | 深圳市永驰环保设备有限公司 | Heat accumulation oxidation treatment equipment based on VOC organic waste gas treatment |
| CN215876631U (en) * | 2021-09-03 | 2022-02-22 | 苏州咏昕恒能源科技有限公司 | Semiconductor contains filter equipment for recovery processing of helium waste gas |
-
2022
- 2022-09-05 CN CN202211078129.5A patent/CN115155249B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02144144A (en) * | 1988-11-28 | 1990-06-01 | Toagosei Chem Ind Co Ltd | Method for regenerating ion-exchange resin |
| JP2003184137A (en) * | 2001-12-19 | 2003-07-03 | Fuji Silysia Chemical Ltd | Water collector |
| US20050191854A1 (en) * | 2004-02-26 | 2005-09-01 | Withers Howard P.Jr. | Process for purification of germane |
| CN209109186U (en) * | 2018-11-07 | 2019-07-16 | 马鞍山马钢比欧西气体有限责任公司 | A kind of regenerating molecular sieve air cooling condensation water discharge unit |
| CN209051887U (en) * | 2019-03-01 | 2019-07-02 | 克拉玛依顺通环保科技有限责任公司 | A kind of tank system device for recovering oil and gas |
| CN211384418U (en) * | 2019-10-17 | 2020-09-01 | 清远先导材料有限公司 | Device for recovering special gas adsorbed by molecular sieve |
| CN214287409U (en) * | 2020-12-11 | 2021-09-28 | 河北力德诚信环保科技有限公司 | Oxidation tail gas carbon fiber adsorbs recovery unit |
| CN113513763A (en) * | 2021-07-29 | 2021-10-19 | 深圳市永驰环保设备有限公司 | Heat accumulation oxidation treatment equipment based on VOC organic waste gas treatment |
| CN215876631U (en) * | 2021-09-03 | 2022-02-22 | 苏州咏昕恒能源科技有限公司 | Semiconductor contains filter equipment for recovery processing of helium waste gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548364A (en) * | 2019-10-17 | 2019-12-10 | 清远先导材料有限公司 | method and device for recovering special gas adsorbed by molecular sieve |
| CN116850745A (en) * | 2023-07-18 | 2023-10-10 | 珠海安诺医疗科技有限公司 | Pressure swing adsorption staged purification's system oxygen |
| CN116850745B (en) * | 2023-07-18 | 2024-01-30 | 珠海安诺医疗科技有限公司 | Pressure swing adsorption staged purification's system oxygen |
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