CN203971707U - A kind of compressed air drying adsorption system - Google Patents
A kind of compressed air drying adsorption system Download PDFInfo
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- CN203971707U CN203971707U CN201420418974.7U CN201420418974U CN203971707U CN 203971707 U CN203971707 U CN 203971707U CN 201420418974 U CN201420418974 U CN 201420418974U CN 203971707 U CN203971707 U CN 203971707U
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Abstract
The utility model relates to the dry field of gas, refers in particular to a kind of compressed air drying adsorption system, comprises two adsorption towers, two-way blower fan, some valves; In described adsorption tower, be provided with heat exchanger tube, the heat exchanger tube of two adsorption towers interconnects, and is provided with two-way blower fan between heat exchanger tube, forms a heat exchange circulation; Between two adsorption towers, be connected to each other by valve, and two adsorption towers are connected with compressed air inlet and compressed air outlet respectively, by by-pass valve control realize an adsorption tower when the adsorbed state, another adsorption tower is in reproduced state.What adopting after such scheme can be more efficient, energy consumption is lower is dried processing to compressed air.
Description
Technical field
The utility model relates to the dry field of gas, refers in particular to a kind of compressed air drying adsorption system.
Background technology
Compressed air is applied in large quantities in many industries, in order to obtain dry compressed air, need to process the compressed air of air compressor machine output, removes the moisture in compressed air.The drying equipment being widely used at present has absorption drier and freezing type drier.The water removal effect of absorption drier is good, but energy consumption is higher, and freezing type drier energy consumption is lower, but water removal effect is poor.
The compressed air adsorption tower of prior art is the adsorbent (molecular sieve, activated alumina, silica gel etc.) of filling some in a container, moisture compressed air enters from one end of container, pass through adsorbent, moisture in compressed air is adsorbed agent absorption, thereby obtain dry compressed air, dry compressed air is from the other end output of container.Because the ability of the adsorption moisture of adsorbent is limited, when after the abundant moisture of absorption, its adsorption capacity can decline, and not even absorption at this moment will be to the adsorbent processed of regenerating, and the regeneration of adsorbent can be heatless regeneration and have heat regeneration.Adsorbent, in the time of the airborne moisture of adsorption compression, can discharge a large amount of heat (heat of condensation), and adsorbent, in the time of regeneration dehydration, absorb a large amount of heat (heat of vaporization).Particularly in adsorption tower when regeneration dehydration, regeneration air is from entrance to outlet, the heat of vaporization when with the heat exchange of adsorbent and the dehydration of supplementary adsorbent, and temperature promptly reduces.The temperature of regeneration air has directly determined that regeneration air receives the ability of steam, and regeneration air temperature is high, and the steam vapour amount that can receive is just many, and regeneration air amount just can correspondingly reduce.The adsorption tower of prior art is owing to only relying on regeneration air to carry heat, and be subject to regeneration air quantitative limitation, can not promptly the temperature of regeneration air be improved to (when heatless regeneration, can reduce the temperature of regeneration air), the steam that regeneration air receives is in a long time few, cause regeneration air consumption to increase, energy consumption increases.
Therefore, the inventor makes further research this, develops a kind of compressed air drying adsorption system, and this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of compressed air drying adsorption system, the compressed air can be more efficient, energy consumption is lower.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of compressed air drying adsorption system, comprises two adsorption towers, two-way blower fan, some valves; In described adsorption tower, be provided with heat exchanger tube, the heat exchanger tube of two adsorption towers interconnects, and is provided with two-way blower fan between heat exchanger tube, forms a heat exchange circulation; Between two adsorption towers, be connected to each other by valve, and two adsorption towers are connected with compressed air inlet and compressed air outlet respectively, by by-pass valve control realize an adsorption tower when the adsorbed state, another adsorption tower is in reproduced state.
Further, described adsorption tower comprises inner casing, shell, adsorbent, screen pack, air air port, heat exchange air port, described shell is arranged on outside inner casing, and the upper surface of shell and lower surface are the extensions of upper surface and the lower surface of inner casing, and the space between shell and inner casing is external air channel; The two ends of described inner casing offer air air port, between described external air channel and air air port, completely cut off and do not communicate; Described adsorbent is arranged in the two-layer screen pack of inner casing inside, and described heat exchanger tube is located in adsorbent, and described heat exchange air port is opened in shell side, and heat exchange air port is communicated with external air channel; In external air channel, be also provided with some wind isolation boards, described wind isolation board and heat exchange air port, external air channel, heat exchanger tube form the unidirectional air channel of the several times of turning back.
Further, described shell and inner casing are rectangular structure, and described heat exchanger tube is divided into some layers, between each layer of adjacent heat exchanger tube, is vertical distribution; Described wind isolation board comprises three, is vertically arranged on respectively between inner casing and shell wherein on three diagonal, and external air channel is divided into a larger passage and two less passages, described heat exchange air port respectively with less two channel connections.
Further, in described external air channel, be provided with horizontal wind isolation board, external air channel be separated into upper and lower two-layer, described heat exchange air port and be communicated with the upper and lower layer of external air channel position respectively.
Further, described adsorption system also comprises air heater, between described air heater and an arbitrary adsorption tower, form a regeneration circulation, described regeneration circulation is connected and composed by air heater, unidirectional air-valve, adsorption tower, two-way blower fan, unidirectional air-valve, air heater successively, in above-mentioned regeneration circulation, add two unidirectional air-valves, adsorption tower is communicated with surrounding air, forms an absorption heat exchange circulation: surrounding air, unidirectional air-valve, adsorption tower, two-way blower fan, unidirectional air-valve, surrounding air.
Further, described adsorption system also comprises aerial cooler, and described aerial cooler one end is connected with air heater, and the other end is connected with compressed air inlet.
Further, between the heat exchange air port of the adsorption tower in above-mentioned adsorption system and air air port, be also connected by pipeline and valve.
Adopt after such scheme, the utility model compared with prior art, has the following advantages:
By the heat exchanger tube in adsorption tower internal placement, by the heat transfer type of hot conduction and convection, carry out heat exchange with adsorbent, the effect that reaches in time, carries out efficiently heat exchange; Can also promptly improve the temperature of regeneration air, make regeneration air receive the ability of steam to increase, reduce widely the consumption of regeneration air, drying effect is good, and energy consumption is low;
The compressed air without cooling high temperature that adopts air compressor machine to discharge, by air heater, provides adsorbent reactivation required thermal source, has saved energy consumption, has improved heat utilization rate.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing adsorption tower;
Fig. 2 is the schematic diagram of the utility model adsorption tower;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the flow chart of Heatless Regeneration Compressed Air Drying Equipment;
Fig. 5 is the flow chart that has hot regeneration drying apparatus;
Fig. 6 is the flow chart that heat of compression heating has hot regeneration drying apparatus;
Fig. 7 is the flow chart that zero gas consumption has hot regeneration drying apparatus;
Fig. 8 is the flow chart that zero gas consumption heat of compression heating has hot regeneration drying apparatus;
Fig. 9 zero gas consumption that is as the criterion has the flow chart of hot regeneration drying apparatus;
Figure 10 is that the heat of compression heats accurate zero gas consumption and has the flow chart of hot regeneration drying apparatus.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Fig. 1 is the structure chart of prior art adsorption tower, and there is compressed air mouth (101,102) at absorption tower body (103) two ends, and absorption tower body (103) inside is full of adsorbent (104).In order to prevent that adsorbent (104) from running out of, in absorption tower body (103) inside, screen pack (105,106) is housed.The working method of drying tower is divided into adsorption process and regenerative process.Adsorption process: compressed air enters from compressed air mouth (101), arrives the water adsorption in compressed air in adsorbent (104) by adsorbent (104), and dry compressed air goes out (102) output from compressed air.Regenerative process: regeneration air enters from compressed air mouth (102), departs from moisture wherein by adsorbent (104), and the air with water is disposed to atmosphere from compressed air mouth (101).Adsorbent, in the time of the airborne moisture of adsorption compression, can discharge a large amount of heat (heat of condensation), and adsorbent, in the time of regeneration dehydration, absorb a large amount of heat (heat of vaporization).Particularly in the time of adsorption tower dehydration regeneration, regeneration air enters to compressed air mouth (101) from compressed air mouth (102) and discharges, when regeneration air receives moisture, by supplementing the adsorbent heat of vaporization in when dehydration with the heat exchange of adsorbent (104), temperature promptly reduces.The temperature of regeneration tail gas has directly determined that regeneration air receives the ability of steam, and regeneration tail gas temperature is high, and the steam vapour amount that can receive is just many, and regeneration air amount just can correspondingly reduce.The adsorption tower of prior art is owing to only relying on regeneration air to carry heat, and be subject to regeneration air quantitative limitation, can not promptly the temperature of regeneration tail gas be improved to (when heatless regeneration, can reduce the temperature of regeneration tail gas), the steam that regeneration air receives is in a long time few, cause regeneration air consumption to increase, energy consumption increases.In adsorption tower adsorption process, compressed air enters to compressed air mouth (102) output from compressed air mouth (101), when moisture in compressed air is adsorbed, releases heat (heat of condensation), the compressed air of these heat parts is taken away, remaining heat accumulation, in adsorption tower inside, makes the temperature rise of adsorbent (104).After adsorbent (104) heats up, adsorption efficiency declines, and can only finish in advance adsorption process and regenerate, and has reduced the adsorption efficiency of adsorbent (104).
Compressed-air actuated drying means of the present utility model and adsorption tower can not be discharged the heat of condensation in time for prior art adsorption tower exactly, the improvement that the problem of supplementary heat of vaporization is made.Below be described in detail.
Fig. 2, Fig. 3 are that the master of the structure of the utility model adsorption tower looks cutaway view and vertical view cutaway drawing.Compare with the adsorption tower of prior art, the utility model is at the some heat exchanger tubes (207) that distributed in absorption tower body inner space, heat transferring medium is passed through in heat exchanger tube (207) inside, outer wall contacts with adsorbent (204), as long as inner by the heat transferring medium of high temperature or low temperature at heat exchanger tube (207), just can complete heating (supplementing heat of vaporization) or cooling (the discharge heat of condensation) to adsorbent (204).
The object of the utility model adsorption tower is achieved through the following technical solutions:
Adsorption tower of the present utility model comprises inner casing (203), heat exchanger tube (207), shell (210), adsorbent (204), screen pack (205,206), air air port (201,202), heat exchange air port (208,209), described shell (210) is arranged on outside inner casing (203), the upper surface of shell (210) and lower surface are the upper surface of inner casing (203) and the extension of lower surface, and the space between shell (210) and inner casing (203) is external air channel; The two ends of described inner casing (203) offer air air port (201,202), between described external air channel and air air port (201,202), completely cut off and do not communicate; Described adsorbent (204) is arranged in the inner two-layer screen pack (205,206) of inner casing (203), described heat exchanger tube (207) is located in adsorbent (204), described heat exchange air port (208,209) is opened in shell (210) side, and heat exchange air port (208,209) are communicated with external air channel; In external air channel, be also provided with wind isolation board (211), shell (210) is rectangular structure with inner casing (203), and described heat exchanger tube (207) is divided into some layers, between adjacent each layer of heat exchanger tube (207), is vertical distribution; Described wind isolation board comprises three, vertically be arranged on respectively between inner casing (203) and shell (210) wherein on three diagonal, external air channel is divided into a larger passage and two less passages, described heat exchange air port respectively with less two channel connections, wind isolation board (211) and heat exchange air port (208,209), external air channel, heat exchanger tube (207) form the unidirectional air channel of the several times of turning back.Effect is that guiding external heat-exchanging medium enters from heat exchange air port, and by heat exchanger tube (207), the line number of going forward side by side is turned back inferiorly, discharges from another heat exchange air port, completes the heat exchanging process with adsorbent (204).External heat-exchanging medium can be the medium that air, water, steam, heat conduction wet goods can carry heat.In order to improve the effect of heat exchange, can install fin additional at the outer wall of heat exchanger tube (207), to strengthen the area of heat exchange.
The operation principle of adsorption tower of the present utility model is divided into adsorption process, regenerative process and blast-cold process.
Adsorption process: compressed air enters from air air port (201), successively pass through adsorbent (204) and heat exchanger tube (207).When compressed air passes through adsorbent (204), adsorbent (204) arrives the water adsorption in compressed air in adsorbent (204), the heat of condensation heated compressed air discharging when absorption makes its intensification, when the compressed air heating up passes through heat exchanger tube (207), heat is passed to the heat transferring medium passing through in heat exchanger tube (207), compressed-air actuated temperature declines.Absorption so repeatedly-heat up-cooling-cooling, dry compressed air is from air air port (202) output, and the heat of condensation is also taken away by the heat transferring medium passing through in heat exchanger tube (207), has solved the problem of temperature rise of adsorbent (204).Heat transferring medium (being the air by environment temperature here) enters external air channel from heat exchange air port (208), through the guiding of wind isolation board (211), make heat transferring medium (as: from right to left in a certain order, from rear to front, from top to bottom) by each root heat exchanger tube (207), finally discharge from the air port (209) of opposite side, the heat producing in adsorption process is taken away.
Regenerative process: regeneration air enters from air air port (202), successively pass through adsorbent (204) and heat exchanger tube (207), by adsorbent (204).When regeneration air passes through adsorbent (204), the moisture in adsorbent (204) is evaporated in regeneration air, when moisture evaporation, absorbs heat of vaporization from regeneration air, and the temperature of regeneration air is declined.When the regeneration air of cooling passes through heat exchanger tube (207), the heat of the heat transferring medium passing through in absorption heat-exchange pipe (207), the temperature rise of regeneration air.Regeneration-cooling-heating so repeatedly-heat up, moisture regeneration air is discharged from air air port (201), and heat transferring medium constantly, by heat exchanger tube (207) additional heat, has solved the cooling problem of adsorbent (204).Heat transferring medium (heatless regeneration adopt be the air of environment temperature, what have that heat regeneration adopts is the air of heating) enter external air channel (210) from heat exchange air port, through the guiding of wind isolation board (211), make heat transferring medium (as: from right to left in a certain order, from rear to front, from top to bottom) by each root heat exchanger tube (207), finally discharge from the heat exchange air port of opposite side, be regenerative process additional heat.
Blast-cold process: while adopting dry air to carry out blast-cold, blowing cold air enters from air air port (202), discharges to air air port (201), and heat transferring medium is surrounding air, carries out cooling by heat exchanger tube to adsorbent (204).While adopting wet (moisture) air to carry out blast-cold, blowing cold air enters from air air port (201), discharges to air air port (202), and heat transferring medium is surrounding air, carries out cooling by heat exchanger tube (207) to adsorbent (204).
Fig. 4 is the flow chart of Heatless Regeneration Compressed Air Drying Equipment of the present utility model, and this device is made up of adsorption tower (303,304), two-way blower fan (305), stop valve (307,308,309,310), check-valves (311,312), control valve (313), exhaust silencer (314), cyclelog (315).Its operation principle is: compressed air enters from compressed air mouth (301), to compressed air mouth (302) output.Adsorption tower (303,304) is controlled the open and close state of stop valve (307,308,309,310) by cyclelog (315), make one in adsorbed state, and another is in reproduced state.When approaching in the adsorption tower of adsorbed state when saturated, two adsorption towers carry out the conversion of adsorbed state and reproduced state, and so iterative cycles, produces dry compressed-air actuated object to reach.Two-way blower fan (305) makes heat transferring medium in 2 adsorption towers (303,304) inner loop, the heat of condensation producing while utilizing adsorbent (204) absorption in adsorption process heats the adsorbent in reproduced state (204), heat transferring medium after cooling carries out again cooling to the adsorbent in adsorbed state (204), so iterative cycles.Control valve (313) is for regulating the size of regeneration air consumption.Turning to by cyclelog (315) of the open and close state of stop valve (307-310) and two-way blower fan (305) controlled.
The compressed air flow process of adsorption tower (303) in the time of adsorption process: (moisture) compressed air → compressed air mouth (301) → stop valve (307) → adsorption tower (303) → check-valves (311) → compressed air mouth (302) → dry air.
The heat transferring medium flow process of adsorption tower (303) in the time of adsorption process: two-way blower fan (305) → adsorption tower (303) → adsorption tower (304) → two-way blower fan (305).
The regeneration air flow process of adsorption tower (303) in the time of regenerative process: regeneration air → control valve (313) → adsorption tower (303) → stop valve (309) → exhaust silencer (314) → atmosphere.
The heat transferring medium flow process of adsorption tower (303) in the time of regenerative process: two-way blower fan (305) → adsorption tower (304) → adsorption tower (303) → two-way blower fan (305).
The compressed air flow process of adsorption tower (304) in the time of adsorption process: (moisture) compressed air → compressed air mouth (301) → stop valve (308) → adsorption tower (304) → check-valves (312) → compressed air mouth (302) → dry air.
The heat transferring medium flow process of adsorption tower (304) in the time of adsorption process: two-way blower fan (305) → adsorption tower (304) → adsorption tower (303) → two-way blower fan (305).
The regeneration air flow process of adsorption tower (304) in the time of regenerative process: regeneration air → control valve (313) → adsorption tower (304) → stop valve (310) → exhaust silencer (314) → atmosphere.
The heat transferring medium flow process of adsorption tower (304) in the time of regenerative process: two-way blower fan (305) → adsorption tower (303) → adsorption tower (304) → two-way blower fan (305).
Fig. 5 is the flow chart that has hot regeneration drying apparatus of the present utility model, this device comprises adsorption tower (403,404), two-way blower fan (405,406), exhaust silencer (407,408), air heater (409), stop valve (410,411,412,413,417), check-valves (414,415), control valve (416), unidirectional air-valve (418,419,420,421,422,423,424,425) cyclelogs (426), its operation principle is: compressed air enters from compressed air mouth (401), to compressed air mouth (402) output.Adsorption tower (403,404) is controlled the open and close state of stop valve (410-413) by cyclelog (426), make one in adsorption process, and another is in regenerative process.When approaching in the adsorption tower of adsorption process when saturated, two adsorption towers carry out the conversion of adsorption process and regenerative process, and so iterative cycles, produces dry compressed-air actuated object to reach.Two-way blower fan (405,406) makes heat transferring medium pass through in 2 adsorption towers (403,404) inside.When adsorption tower (403,404) is heated, two-way blower fan (405,406) forward, heat transferring medium circulates between adsorption tower (403,404) and air heat exchanger (409), from air heat exchanger (409) absorbs heat, adsorption tower (403,404) is heated, so iterative cycles.When cooling to adsorption tower (403,404), two-way blower fan (405,406) reversion, heat transferring medium (surrounding air) enters adsorption tower (403,404) from unidirectional air-valve (420,424), discharges after cooling from unidirectional air-valve (419,423).Air heater (409) can adopt electrical heating, steam, conduction oil, hot water heating, also can heat the effect that reaches energy-conservation with the compressed air of high temperature or other waste heat and used heat.Control valve (416) is for the size of manual adjustments regeneration air consumption, stop valve (417) for automatically regulate regeneration air consumption number.The open and close state of stop valve (410-413,417) and turning to by cyclelog (426) of two-way blower fan (405,406) are controlled.
The compressed air flow process of adsorption tower (403) in the time of adsorption process: (moisture) compressed air → compressed air mouth (401) → stop valve (410) → adsorption tower (403) → check-valves (414) → compressed air mouth (402) → dry air.
The heat transferring medium flow process of adsorption tower (403) in the time of adsorption process: surrounding air → unidirectional air-valve (420) → adsorption tower (403) → two-way blower fan (405) → unidirectional air-valve (419) → surrounding air.
The regeneration air flow process of adsorption tower (403) in the time of regenerative process: regeneration air → stop valve (417) → control valve (416) → adsorption tower (403) → stop valve (412) → exhaust silencer (407) → surrounding air.
The heat transferring medium flow process of adsorption tower (403) in the time of regenerative process: the unidirectional air-valve of two-way blower fan (405) → adsorption tower (403) (421) → air heater (409) → unidirectional air-valve (418) → two-way blower fan (405).
The blowing cold air flow process of adsorption tower (403) in the time of blast-cold process: blowing cold air → stop valve (417) → control valve (416) → adsorption tower (403) → stop valve (412) → exhaust silencer (407) → surrounding air.
The heat transferring medium flow process of adsorption tower (403) in the time of blast-cold process: surrounding air → unidirectional air-valve (420) → adsorption tower (403) → two-way blower fan (405) → unidirectional air-valve (419) → surrounding air.
The compressed air flow process of adsorption tower (404) in the time of adsorption process: (moisture) compressed air → compressed air mouth (401) → stop valve (411) → adsorption tower (404) → check-valves (415) → compressed air mouth (402) → dry air.
The heat transferring medium flow process of adsorption tower (404) in the time of adsorption process: surrounding air → unidirectional air-valve (424) → adsorption tower (404) → two-way blower fan (406) → unidirectional air-valve (423) → surrounding air.
The regeneration air flow process of adsorption tower (404) in the time of regenerative process: regeneration air → control valve (416) → stop valve (417) → adsorption tower (404) → stop valve (413) → exhaust silencer (408) → surrounding air.
The heat transferring medium flow process of adsorption tower (404) in the time of regenerative process: two-way blower fan (406) → adsorption tower (404) → unidirectional air-valve (425) → air heater (409) → unidirectional air-valve (422) → two-way blower fan (406).
The blowing cold air flow process of adsorption tower (404) in the time of blast-cold process: blowing cold air → control valve (416) → stop valve (417) → adsorption tower (404) → stop valve (413) → exhaust silencer (408) → surrounding air.
The heat transferring medium flow process of adsorption tower (404) in the time of blast-cold process: surrounding air → unidirectional air-valve (424) → adsorption tower (404) → two-way blower fan (406) → unidirectional air-valve (423) → surrounding air.
Fig. 6 is the flow chart that heat of compression heating of the present utility model has hot regeneration drying apparatus, and this device is having on the basis of hot regeneration absorption type drying device, has increased an aerial cooler (502).The compressed air of high temperature is entered after air heater (409) heating heat transferring medium by high temperature compressed air entrance (501), enter aerial cooler (502), after cooling, enter compressed air inlet (401), dry compressed air is from compressed air outlet (402) output.Valve (503) is for the condensate water of the cooling rear generation of discharges compressed air.The utility model, because the heat of regeneration is taken from high temperature compressed air (heat of compression), therefore can be saved the energy that regeneration heating consumes.The type of cooling of aerial cooler can be air-cooled, water-cooled or other the type of cooling.Due to by aerial cooler and dryer group integrator, can save the aftercooler of air compressor machine, make that cooling effect is better, structure is compacter, cost is lower.
Fig. 7 is the flow chart that zero gas consumption of the present utility model has hot regeneration drying apparatus, and this device is made up of adsorption tower (603,604), two-way blower fan (605-608), exhaust silencer (609,610), air heater (611), stop valve (612-617), check-valves (618,619), unidirectional air-valve (620-631), cyclelog (632) etc.Its operation principle is: compressed air enters from compressed air mouth (601), to compressed air mouth (602) output.Cyclelog (426) is controlled the open and close state of stop valve (612-617), makes one of adsorption tower (603,604) in adsorption process, and another is in regenerative process.When approaching in the adsorption tower of adsorption process when saturated, two adsorption towers carry out the conversion of adsorption process and regenerative process, and so iterative cycles, produces dry compressed-air actuated object to reach.Control turning to of two-way blower fan (605,606), can complete the heating and cooling of heat transferring medium to adsorption tower (603,604).Control turning to of two-way blower fan (607,608), can complete regeneration and the blast-cold of the adsorbent (204) inner to adsorption tower (603,604).Because the utility model environment for use air is as regeneration air and blowing cold air, therefore claim " zero gas consumption " because of consumption of compressed air not.Be characterized in that energy consumption is low.
The compressed air flow process of adsorption tower (603) in the time of adsorption process: (moisture) compressed air → compressed air mouth (601) → stop valve (612) → adsorption tower (603) → check-valves (618) → compressed air mouth (602) → dry air.
The heat transferring medium flow process of adsorption tower (603) in the time of adsorption process: surrounding air → unidirectional air-valve (625) → adsorption tower (603) → two-way blower fan (605) → unidirectional air-valve (623) → surrounding air.
The regeneration air flow process of adsorption tower (603) in the time of regenerative process: surrounding air → unidirectional air-valve (625) → unidirectional air-valve (626) → air heater (611) → unidirectional air-valve (622) → two-way blower fan (605) → unidirectional air-valve (624) → two-way blower fan (607) → stop valve (616) → adsorption tower (603) → stop valve (614) → exhaust silencer (609) → surrounding air.
The heat transferring medium flow process of adsorption tower (603) in the time of regenerative process: two-way blower fan (605) → adsorption tower (603) → unidirectional air-valve (626) → air heater (611) → unidirectional air-valve (622) → two-way blower fan (605).
The blowing cold air flow process of adsorption tower (603) in the time of blast-cold process: two-way blower fan (607) → unidirectional air-valve (620) → stop valve (614) → adsorption tower (603) → stop valve (616) → two-way blower fan (607).
The heat transferring medium flow process of adsorption tower (603) in the time of blast-cold process: surrounding air → unidirectional air-valve (625) → adsorption tower (603) → two-way blower fan (605) → unidirectional air-valve (623) → surrounding air.
The compressed air flow process of adsorption tower (604) in the time of adsorption process: (moisture) compressed air → compressed air mouth (601) → stop valve (613) → adsorption tower (604) → check-valves (619) → compressed air mouth (602) → dry air.
The heat transferring medium flow process of adsorption tower (604) in the time of adsorption process: surrounding air → unidirectional air-valve (630) → adsorption tower (604) → two-way blower fan (606) → unidirectional air-valve (628) → surrounding air.
The regeneration air flow process of adsorption tower (604) in the time of regenerative process: surrounding air → unidirectional air-valve (630) → unidirectional air-valve (631) → air heater (611) → unidirectional air-valve (627) → two-way blower fan (606) → unidirectional air-valve (629) → two-way blower fan (608) → stop valve (617) → adsorption tower (604) → stop valve (615) → exhaust silencer (610) → surrounding air.
The heat transferring medium flow process of adsorption tower (604) in the time of regenerative process: two-way blower fan (606) → adsorption tower (604) → unidirectional air-valve (631) → air heater (611) → unidirectional air-valve (627) → two-way blower fan (606).
The blowing cold air flow process of adsorption tower (604) in the time of blast-cold process: two-way blower fan (608) → unidirectional air-valve (621) → stop valve (615) → adsorption tower (604) → stop valve (617) → two-way blower fan (608).
The heat transferring medium flow process of adsorption tower (604) in the time of blast-cold process: surrounding air → unidirectional air-valve (630) → adsorption tower (604) → two-way blower fan (606) → unidirectional air-valve (628) → surrounding air.
Fig. 8 is that the heat of compression of the present utility model heats zero gas consumption and has the flow chart of hot regeneration drying apparatus, and this device has on the basis of hot regeneration absorption type drying device at zero gas consumption, has increased an aerial cooler (702).The compressed air of high temperature is entered after air heater (611) heating heat transferring medium by high temperature compressed air entrance (701), enter aerial cooler (702), after cooling, enter compressed air inlet (601), dry compressed air is from compressed air outlet (602) output.Valve (703) is for the condensate water of the cooling rear generation of discharges compressed air.The utility model is because the heat of regeneration is taken from high temperature compressed air (heat of compression), and regeneration air and blowing cold air are taken from surrounding air, therefore saves energy that regeneration heating consumes consumption of compressed air extraly not again, can accomplish extremely low energy consumption.The type of cooling of aerial cooler can be air-cooled, water-cooled or other the type of cooling.Due to by aerial cooler and dryer group integrator, can save the aftercooler of air compressor machine, make that cooling effect is better, structure is compacter, cost is lower.
Fig. 9 is the flow chart that accurate zero gas consumption of the present utility model has hot regeneration drying apparatus, this device has increased unidirectional blower fan (801), unidirectional air-valve (829), stop valve (803,804) on the basis that has hot regeneration drying apparatus, make the regeneration air of regenerative process directly adopt surrounding air, do not need consumption of compressed air as regeneration air, only need to be at a small amount of compressed air of blast-cold process consumption as blowing cold air.The utility model feature is simple in structure, superior product quality.
The regeneration air flow process of adsorption tower (403) in the time of regenerative process: surrounding air → unidirectional air-valve (420) → unidirectional air-valve (421) → air heater (409) → unidirectional air-valve (802) → unidirectional blower fan (801) → stop valve (803) → adsorption tower (403) → stop valve (412) → exhaust silencer (407) → surrounding air.
The regeneration air flow process of adsorption tower (404) in the time of regenerative process: surrounding air → unidirectional air-valve (424) → unidirectional air-valve (425) → air heater (409) → unidirectional air-valve (802) → unidirectional blower fan (801) → stop valve (804) → adsorption tower (404) → stop valve (413) → exhaust silencer (408) → surrounding air.
All the other processes with have hot regeneration drying apparatus identical.
Figure 10 is that the heat of compression of the present utility model heats accurate zero gas consumption and has the flow chart of hot regeneration drying apparatus, and this device has on the basis of hot regeneration absorption type drying device at accurate zero gas consumption, has increased an aerial cooler (902).The compressed air of high temperature is entered after air heater (409) heating heat transferring medium by high temperature compressed air entrance (901), enter aerial cooler (902), after cooling, enter compressed air inlet (401), dry compressed air is from compressed air outlet (202) output.Valve (903) is for the condensate water of the cooling rear generation of discharges compressed air.The utility model has utilized the heat (heat of compression) of high temperature compressed air, and not consumption of compressed air of regenerative process, and blast-cold process only consumes a small amount of compressed air, and drying device can reach extremely low energy consumption.The type of cooling of aerial cooler can be air-cooled, water-cooled or other the type of cooling.Due to by aerial cooler and dryer group integrator, can save the aftercooler of air compressor machine, make that cooling effect is better, structure is compacter, cost is lower.
Above are only specific embodiment of the utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.
Claims (7)
1. a compressed air drying adsorption system, is characterized in that: comprise two adsorption towers, two-way blower fan, some valves; In described adsorption tower, be provided with heat exchanger tube, the heat exchanger tube of two adsorption towers interconnects, and is provided with two-way blower fan between heat exchanger tube, forms a heat exchange circulation; Between two adsorption towers, be connected to each other by valve, and two adsorption towers are connected with compressed air inlet and compressed air outlet respectively, by by-pass valve control realize an adsorption tower when the adsorbed state, another adsorption tower is in reproduced state.
2. a kind of compressed air drying adsorption system according to claim 1, it is characterized in that: described adsorption tower comprises inner casing, shell, adsorbent, screen pack, air air port, heat exchange air port, described shell is arranged on outside inner casing, the upper surface of shell and lower surface are the extensions of upper surface and the lower surface of inner casing, and the space between shell and inner casing is external air channel; The two ends of described inner casing offer air air port, between described external air channel and air air port, completely cut off and do not communicate; Described adsorbent is arranged in the two-layer screen pack of inner casing inside, and described heat exchanger tube is located in adsorbent, and described heat exchange air port is opened in shell side, and heat exchange air port is communicated with external air channel; In external air channel, be also provided with some wind isolation boards, described wind isolation board and heat exchange air port, external air channel, heat exchanger tube form the unidirectional air channel of the several times of turning back.
3. a kind of compressed air drying adsorption system according to claim 2, is characterized in that: described shell and inner casing are rectangular structure, and described heat exchanger tube is divided into some layers, between each layer of adjacent heat exchanger tube, is vertical distribution; Described wind isolation board comprises three, is vertically arranged on respectively between inner casing and shell wherein on three diagonal, and external air channel is divided into a larger passage and two less passages, described heat exchange air port respectively with less two channel connections.
4. a kind of compressed air drying adsorption system according to claim 3, it is characterized in that: in described external air channel, be provided with horizontal wind isolation board, external air channel is separated into upper and lower two-layer, described heat exchange air port to be communicated with the upper and lower layer of external air channel position respectively.
5. a kind of compressed air drying adsorption system according to claim 1, it is characterized in that: described adsorption system also comprises air heater, between described air heater and an arbitrary adsorption tower, form a regeneration circulation, described regeneration circulates successively by air heater, unidirectional air-valve, adsorption tower, two-way blower fan, unidirectional air-valve, air heater connects and composes, in above-mentioned regeneration circulation, add two unidirectional air-valves, adsorption tower is communicated with surrounding air, form an absorption heat exchange circulation: surrounding air, unidirectional air-valve, adsorption tower, two-way blower fan, unidirectional air-valve, surrounding air.
6. a kind of compressed air drying adsorption system according to claim 5, is characterized in that: described adsorption system also comprises aerial cooler, and described aerial cooler one end is connected with air heater, and the other end is connected with compressed air inlet.
7. a kind of compressed air drying adsorption system according to claim 6, is characterized in that: between the heat exchange air port of the adsorption tower in described adsorption system and air air port, be also connected by pipeline and valve.
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| CN201420418974.7U CN203971707U (en) | 2014-07-28 | 2014-07-28 | A kind of compressed air drying adsorption system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128074A (en) * | 2014-07-28 | 2014-11-05 | 王新建 | Compressed air drying and adsorption system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128074A (en) * | 2014-07-28 | 2014-11-05 | 王新建 | Compressed air drying and adsorption system |
| CN104128074B (en) * | 2014-07-28 | 2015-12-09 | 王新建 | A kind of compressed air drying adsorption system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20151209 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |