CN210186794U - Combined zero-gas-consumption blast hot dryer - Google Patents
Combined zero-gas-consumption blast hot dryer Download PDFInfo
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- CN210186794U CN210186794U CN201920496935.1U CN201920496935U CN210186794U CN 210186794 U CN210186794 U CN 210186794U CN 201920496935 U CN201920496935 U CN 201920496935U CN 210186794 U CN210186794 U CN 210186794U
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Abstract
The utility model discloses a combined zero-gas-consumption blast thermal dryer, which relates to the technical field of drying equipment and is characterized by comprising a cold dryer and a blast thermal dryer, wherein the cold dryer comprises a precooling heat regenerator, an evaporator, a refrigerating system, a gas-liquid separator and an automatic drainer; the air blowing and hot air sucking dryer comprises an adsorption cylinder A, an adsorption cylinder B, a cold air blowing regulating valve, an air inlet pneumatic valve A, an air inlet pneumatic valve B, a cold air blowing pneumatic valve A, a cold air blowing pneumatic valve B, an air outlet pneumatic valve A, an air outlet pneumatic valve B, a silencer, a resistance reduction pneumatic valve, a pressure equalizing pneumatic valve, an air blower, an electric heater, a regeneration pneumatic valve A, a regeneration pneumatic valve B, a one-way valve A, a one-way valve B, a temperature sensor T1, a temperature sensor T2, a temperature sensor T3 and a control component. The utility model discloses relative other blast air heat suction dryer, its structure is simple relatively, does not have the cooler, and the valve that needs control is less relatively, and energy consumption, cost and fault rate are lower.
Description
Technical Field
The utility model relates to a drying equipment technical field, concretely relates to modular zero gas consumption blast hot air drying machine.
Background
The application of compressed air is more and more extensive whether industrial or civil, and the compressed air purification technology is more and more advanced. Under the call of national energy conservation and environmental protection, more users tend to select energy-saving purification equipment after the comprehensive measures such as one-time investment, running cost and the like of the compressed air purification equipment are carried out. Therefore, various low-air-consumption and zero-air-consumption suction dryers are beginning to replace traditional non-heat suction dryers and micro-heat suction dryers. Moreover, considering the final dew point of the finished product gas and the fact that the exhaust temperature of most air compressors in summer exceeds the standard, more users select the combination configuration of the cooling dryer and the suction dryer. At present, the combined dryer in the market is mainly a combination of a cold dryer and a non-heat or micro-heat absorption dryer, and the structure has high air consumption and high energy consumption; there is also a combination of a cold dryer and a blast hot suction dryer, but the combination is only simply connected in series, and a certain energy-saving space also exists.
Disclosure of Invention
The utility model discloses a solve above-mentioned problem, the purpose is so realized: the combined type zero-gas-consumption blast thermal dryer is characterized by comprising a cold dryer and a blast thermal dryer, wherein the cold dryer comprises a precooling heat regenerator, an evaporator, a refrigerating system, a gas-liquid separator and an automatic water drainer, the precooling heat regenerator comprises a precooling heat regenerator tube side and a precooling heat regenerator shell side, and the evaporator comprises an evaporator shell side; the air blowing and hot air sucking dryer comprises an adsorption cylinder A, an adsorption cylinder B, a cold air blowing regulating valve, an air inlet pneumatic valve A, an air inlet pneumatic valve B, a cold air blowing pneumatic valve A, a cold air blowing pneumatic valve B, an air outlet pneumatic valve A, an air outlet pneumatic valve B, a silencer, a resistance reduction pneumatic valve, a pressure equalizing pneumatic valve, an air blower, an electric heater, a regeneration pneumatic valve A, a regeneration pneumatic valve B, a one-way valve A, a one-way valve B, a temperature sensor T1, a temperature sensor T2, a temperature sensor T3 and a control part; the outlet pipeline of the cold dryer is mutually connected with the inlet pipeline of the blast hot suction dryer; the precooler heat regenerator tube side, the evaporator shell side, the gas-liquid separator, the precooler heat regenerator shell side, the air inlet pneumatic valve A, the adsorption cylinder A and the one-way valve A are mutually connected in the sequence, wherein the precooler heat regenerator tube side is also connected with an air inlet pipeline B, and the one-way valve A is also connected with an air outlet pipeline; the air blower, the electric heater, the regeneration pneumatic valve B, the adsorption cylinder B, the exhaust pneumatic valve B and the resistance-reducing pneumatic valve are mutually connected in the sequence, wherein the air blower is also connected with an air inlet pipeline A; the inlet pipeline of the adsorption cylinder A and the inlet pipeline of the adsorption cylinder B are mutually connected, and a pressure-equalizing pneumatic valve is arranged between the inlet pipeline of the adsorption cylinder A and the inlet pipeline of the adsorption cylinder B; the gas-liquid separator, the cold blowing air regulating valve, the cold blowing pneumatic valve B, the adsorption cylinder B, the one-way valve B and the air outlet pipeline are mutually connected according to the sequence.
Preferably, the air outlet pipeline, the precooling heat regenerator tube side, the evaporator shell side, the gas-liquid separator, the precooling heat regenerator shell side, the air inlet pneumatic valve A, the adsorption cylinder A and the one-way valve A form an adsorption passage.
Preferably, the air inlet pipeline A, the blower, the electric heater, the regeneration pneumatic valve B, the adsorption cylinder B, the exhaust pneumatic valve B and the drag reduction pneumatic valve form a heating regeneration passage.
Preferably, the adsorption cylinder A, the pressure equalizing pneumatic valve and the adsorption cylinder B form a pressure equalizing passage.
Preferably, the outlet of the electric heater is provided with a temperature sensor T1, and a temperature sensor T2 and a temperature sensor T3 are respectively arranged at the outlets of the adsorption cylinder a and the adsorption cylinder B.
Preferably, the bottom of the gas-liquid separator is provided with an automatic drainer.
Preferably, the gas-liquid separator, the cold blowing gas regulating valve, the cold blowing pneumatic valve B, the adsorption cylinder B, the one-way valve B and the air outlet pipeline form a cold blowing regeneration passage.
Preferably, the evaporator is installed in cooperation with a refrigeration system.
Preferably, the electric heater is connected with the one-way valve A, and a regenerative pneumatic valve A is arranged between the electric heater and the one-way valve A.
Preferably, the control unit is connected to the temperature sensor T1, the temperature sensor T2, and the temperature sensor T3 through wires, and controls the opening and closing of the intake air-operated valve a or the intake air-operated valve B, the cold blow air-operated valve a or the cold blow air-operated valve B, and the exhaust air-operated valve a or the exhaust air-operated valve B.
The utility model discloses following beneficial effect has:
(1) the suction dryer part is relatively simple in structure, does not have a cooler, needs relatively few control valves and is lower in energy consumption, cost and failure rate compared with other zero-gas-consumption blast heat suction dryers;
(2) the cold dryer and the blast hot dryer are combined into a whole, the floor area is small, the load of the dryer is low, the dew point of the finished gas is more stable, and the service life of the adsorbent is longer.
(3) The absorption dryer adopts refrigerated dry low-temperature compressed air for cold blowing, so that the adsorbent can reach the optimal temperature, and a foundation is laid for the adsorption period.
Drawings
The invention will be further explained with reference to the drawings and the specific embodiments.
Fig. 1 is a schematic connection diagram of the present invention.
Fig. 2 is a schematic diagram of the precooling heat regenerator of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following description is combined with the detailed implementation mode to further explain the present invention.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: the combined type zero-gas-consumption blast heat dryer is characterized by comprising a cold dryer and a blast heat absorption dryer, wherein the cold dryer comprises a precooling heat regenerator (18), an evaporator (19), a refrigerating system (20), a gas-liquid separator (21) and an automatic water drainer (1), the precooling heat regenerator (18) comprises a precooling heat regenerator tube side (180) and a precooling heat regenerator shell side (181), and the evaporator (19) comprises an evaporator shell side (190); the air blowing hot air dryer comprises an adsorption cylinder A (22), an adsorption cylinder B (23), a cold air blowing regulating valve (2), an air inlet air-operated valve A (3), an air inlet air-operated valve B (4), a cold air blowing air-operated valve A (5), a cold air blowing air-operated valve B (6), an air outlet air-operated valve A (7), an air outlet air-operated valve B (8), a silencer (9), a resistance reduction air-operated valve (10), a pressure equalizing air-operated valve (11), an air blower (12), an electric heater (13), a regeneration air-operated valve A (14) and a regeneration air-operated valve B (15), a one-way valve A (16), a one-way valve B (17), a temperature sensor T1, a temperature sensor T2, a temperature sensor T3 and a; the outlet pipeline of the cold dryer is mutually connected with the inlet pipeline of the blast hot suction dryer; the precooler heat regenerator comprises a precooler tube pass (180), an evaporator shell pass (190), a gas-liquid separator (21), a precooler heat regenerator shell pass (181), an air inlet pneumatic valve A (3), an adsorption cylinder A (22) and a one-way valve A (16), which are mutually connected in sequence, wherein the precooler heat regenerator tube pass (180) is also connected with an air inlet pipeline B (26), and the one-way valve A (16) is also connected with an air outlet pipeline (24); the air blower (12), the electric heater (13), the regenerative pneumatic valve B (15), the adsorption cylinder B (23), the exhaust pneumatic valve B (8) and the drag reduction pneumatic valve (10) are mutually connected according to the sequence, wherein the air blower (12) is also connected with an air inlet pipeline A (25); the inlet pipeline of the adsorption cylinder A (22) and the inlet pipeline of the adsorption cylinder B (23) are mutually connected, and a pressure equalizing pneumatic valve (11) is arranged between the inlet pipeline and the adsorption cylinder A; the gas-liquid separator (21), the cold blowing air regulating valve (2), the cold blowing air valve B (6), the adsorption cylinder B (23), the one-way valve B (17) and the air outlet pipeline (24) are mutually connected according to the sequence.
The air outlet pipeline (24), the precooling heat regenerator tube pass (180), the evaporator shell pass (190), the gas-liquid separator (21), the precooling heat regenerator shell pass (181), the air inlet pneumatic valve A (3), the adsorption cylinder A (22) and the one-way valve A (16) form an adsorption passage.
The heating regeneration device comprises an air inlet pipeline A (25), a blower (12), an electric heater (13), a regeneration pneumatic valve B (15), an adsorption cylinder B (23), an exhaust pneumatic valve B (8) and a resistance reduction pneumatic valve (10) which form a heating regeneration passage.
The adsorption cylinder A (22), the pressure equalizing air-operated valve (11) and the adsorption cylinder B (23) form a pressure equalizing passage.
Wherein, the outlet of the electric heater (13) is provided with a temperature sensor T1, and a temperature sensor T2 and a temperature sensor T3 are respectively arranged at the outlets of the adsorption cylinder A (22) and the adsorption cylinder B (23).
Wherein, the bottom of the gas-liquid separator (21) is provided with an automatic drainer (1).
The cold blowing regeneration passage is formed by the gas-liquid separator (21), the cold blowing air regulating valve (2), the cold blowing air-operated valve B (6), the adsorption cylinder B (23), the one-way valve B (17) and the air outlet pipeline (24).
Wherein the evaporator (19) is installed in cooperation with a refrigeration system (20).
The electric heater (13) and the one-way valve A (16) are connected with each other, and a regenerative pneumatic valve A (14) is arranged between the electric heater and the one-way valve A.
Wherein the control part is respectively connected with the temperature sensor T1, the temperature sensor T2 and the temperature sensor T3 through leads and also controls the switch of the air-intake air-operated valve A (3) or the air-intake air-operated valve B (4), the switch of the cold-blow air-operated valve A (5) or the cold-blow air-operated valve B (6), and the switch of the air-exhaust air-operated valve A (7) or the air-exhaust air-operated valve B (8).
The present embodiment adopts the above-described scheme.
As shown in figure 1, the utility model relates to a combined zero-air-consumption blowing hot dryer, which mainly comprises a cold dryer and a blowing hot absorption dryer, wherein the outlet of the cold dryer is connected with the inlet of the blowing hot absorption dryer.
The cold dryer comprises a precooling heat regenerator, an evaporator, a refrigerating system, a gas-liquid separator and an automatic water drainer, wherein the precooling heat regenerator comprises a precooling heat regenerator tube side and a precooling heat regenerator shell side, and the evaporator comprises an evaporator shell side; the air blowing and hot air sucking dryer comprises an adsorption cylinder A, an adsorption cylinder B, a cold air blowing regulating valve, an air inlet pneumatic valve A, an air inlet pneumatic valve B, a cold air blowing pneumatic valve A, a cold air blowing pneumatic valve B, an air outlet pneumatic valve A, an air outlet pneumatic valve B, a silencer, a resistance reduction pneumatic valve, a pressure equalizing pneumatic valve, an air blower, an electric heater, a regeneration pneumatic valve A, a regeneration pneumatic valve B, a one-way valve A, a one-way valve B, a temperature sensor T1, a temperature sensor T2, a temperature sensor T3 and a control part;
the above-mentioned all parts are mutually connected according to design in turn to form the following path,
adsorption passage: the system comprises an air outlet pipeline, a precooler heat regenerator tube side, an evaporator shell side, a gas-liquid separator, a precooler heat regenerator shell side, an air inlet pneumatic valve A, an adsorption cylinder A and a one-way valve A;
heating the regeneration path: the device comprises an air inlet pipeline A, a blower, an electric heater, a regenerative pneumatic valve B, an adsorption cylinder B, an exhaust pneumatic valve B and a drag reduction pneumatic valve;
a voltage equalizing passage: the device comprises an adsorption cylinder A, a pressure-equalizing pneumatic valve and an adsorption cylinder B;
a cold blowing regeneration passage: the air-liquid separator, the cold blowing air regulating valve, the cold blowing pneumatic valve B, the adsorption cylinder B, the one-way valve B and the air outlet.
The utility model discloses still be equipped with temperature sensor T1, the export of adsorbing a section of thick bamboo A in the electric heater export respectively and be equipped with temperature sensor T2, the export of adsorbing a section of thick bamboo B is equipped with temperature sensor T3 and vapour and liquid separator's bottom is equipped with automatic water drainer.
The working process of the utility model is as follows,
an adsorption process: when adsorbing a section of thick bamboo A and adsorbing a section of thick bamboo B when regeneration, damp and hot compressed air gets into the precooling regenerator from air intlet, carries out the heat exchange with cold air, gets into the evaporimeter and carries out the heat exchange with microthermal refrigerant again after tentatively cooling down, and compressed air after the degree of depth cooling gets into vapour and liquid separator, and the comdenstion water that produces because of the cooling is separated and is passed through automatic water drainer discharge apparatus. The low-temperature compressed air returns to the precooling heat regenerator again, enters the adsorption cylinder A through the air inlet pneumatic valve A after exchanging heat with the damp and hot inlet compressed air, and the moisture in the compressed air is deeply removed by the adsorbent and then reaches the air outlet through the one-way valve A. The same applies to the adsorption of the adsorption cylinder B and the regeneration of the adsorption cylinder A.
And the regeneration is divided into 3 stages, which are respectively: heating regeneration, pressure equalizing process and cold blowing regeneration.
Wherein, the heating regeneration process is as follows: the adsorbent is regenerated by heating with ambient air. When the adsorption cylinder A adsorbs and the adsorption cylinder B regenerates, ambient air is introduced into the electric heater by the air blower, enters the adsorption cylinder B through the regeneration pneumatic valve B after being heated, the high-temperature air desorbs and regenerates the adsorbent in the adsorption cylinder, and the water vapor is discharged into the atmosphere through the silencer and the drag reduction pneumatic valve after passing through the exhaust pneumatic valve B along with the regenerated air. The adsorption of the adsorption cylinder B and the regeneration of the adsorption cylinder A are performed in the same way.
The pressure equalizing process is as follows: when an adsorption cylinder A is used for adsorption and an adsorption cylinder B is used for regeneration, after heating regeneration is completed, the air blower and the electric heater stop running, the regeneration pneumatic valve B, the exhaust pneumatic valve B and the resistance reduction pneumatic valve are closed, the pressure equalizing pneumatic valve is opened, the pressure equalizing pipeline with a small diameter can enable the regeneration tower to be slowly pressurized, and impact of compressed air on the adsorbent when the cold blowing pneumatic valve B is suddenly opened is avoided. The adsorption of the adsorption cylinder B and the regeneration of the adsorption cylinder A are carried out in the same way.
The cold blowing regeneration process comprises the following steps: the compressed air refrigerated by the refrigerating system is adopted to cool and blow the adsorbent, the cold blowing efficiency is high, and lower and more ideal temperature can be achieved. When an adsorption cylinder A is used for adsorption and an adsorption cylinder B is used for regeneration, after the pressure equalizing process is finished, the pressure equalizing pneumatic valve is closed, the cold blowing pneumatic valve B is opened, part of dry and cold compressed air coming out of the gas-liquid separator enters the adsorption cylinder B through the cold blowing air regulating valve and the cold blowing pneumatic valve B, and the adsorbent after being heated is cooled and then is merged into the main pipeline through the check valve B to reach an air outlet. The adsorption of the adsorption cylinder B and the regeneration of the adsorption cylinder A are carried out in the same way. In the initial stage of cold blowing, because the temperature of the adsorbent in the regeneration tower is higher, the temperature of the cold blown air after cold blowing is correspondingly higher, but the percentage of the cold blown air in the total airflow is very small, and in addition, the cold dryer is arranged at the front end of the suction dryer, the inlet air temperature of the suction dryer is lower, so the temperature of the air outlet is in a normal range.
In terms of control, the outlet of the electric heater is provided with a temperature sensor T1, and a controller in the control part automatically adjusts the starting and stopping of the electric heater according to the outlet temperature of the electric heater. The electric heaters are controlled by a plurality of groups (at least 2 groups) so as to avoid that the heaters are all stopped together when the outlet temperature reaches the upper limit, and ambient air enters the adsorption cylinder under the conditions of no heating and high humidity, so that the adsorbent absorbs water.
The outlets of the adsorption cylinder A and the adsorption cylinder B are also respectively provided with a temperature sensor T2 and a temperature sensor T3, and a controller in the control part can control the on-off of the cold air blowing valve A and the cold air blowing valve B according to the outlet temperature of the regeneration tower so as to ensure that the adsorbent is cooled to the ideal temperature. The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and the description of the embodiments is merely illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are intended to fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The combined type zero-gas-consumption blast heat dryer is characterized by comprising a cold dryer and a blast heat absorption dryer, wherein the cold dryer comprises a precooling heat regenerator (18), an evaporator (19), a refrigerating system (20), a gas-liquid separator (21) and an automatic water drainer (1), the precooling heat regenerator (18) comprises a precooling heat regenerator tube side (180) and a precooling heat regenerator shell side (181), and the evaporator (19) comprises an evaporator shell side (190); the air blowing hot air dryer comprises an adsorption cylinder A (22), an adsorption cylinder B (23), a cold air blowing regulating valve (2), an air inlet air-operated valve A (3), an air inlet air-operated valve B (4), a cold air blowing air-operated valve A (5), a cold air blowing air-operated valve B (6), an air outlet air-operated valve A (7), an air outlet air-operated valve B (8), a silencer (9), a resistance reduction air-operated valve (10), a pressure equalizing air-operated valve (11), an air blower (12), an electric heater (13), a regeneration air-operated valve A (14), a regeneration air-operated valve B (15), a one-way valve A (16), a one-way valve B (17), a temperature sensor T1, a temperature sensor T2, a temperature sensor T3 and a control; the outlet pipeline of the cold dryer is mutually connected with the inlet pipeline of the blast hot suction dryer; the precooler heat regenerator comprises a precooler tube pass (180), an evaporator shell pass (190), a gas-liquid separator (21), a precooler heat regenerator shell pass (181), an air inlet pneumatic valve A (3), an adsorption cylinder A (22) and a one-way valve A (16), which are mutually connected in sequence, wherein the precooler heat regenerator tube pass (180) is also connected with an air inlet pipeline B (26), and the one-way valve A (16) is also connected with an air outlet pipeline (24); the air blower (12), the electric heater (13), the regenerative pneumatic valve B (15), the adsorption cylinder B (23), the exhaust pneumatic valve B (8) and the drag reduction pneumatic valve (10) are mutually connected according to the sequence, wherein the air blower (12) is also connected with an air inlet pipeline A (25); the inlet pipeline of the adsorption cylinder A (22) and the inlet pipeline of the adsorption cylinder B (23) are mutually connected, and a pressure equalizing pneumatic valve (11) is arranged between the inlet pipeline and the adsorption cylinder A; the gas-liquid separator (21), the cold blowing air regulating valve (2), the cold blowing air valve B (6), the adsorption cylinder B (23), the one-way valve B (17) and the air outlet pipeline (24) are mutually connected according to the sequence.
2. The combined type zero-gas-consumption blast thermal dryer according to claim 1, wherein the air outlet pipeline (24), the precooling heat regenerator tube side (180), the evaporator shell side (190), the gas-liquid separator (21), the precooling heat regenerator shell side (181), the air inlet pneumatic valve A (3), the adsorption cylinder A (22) and the one-way valve A (16) form an adsorption passage.
3. The combined zero-air-consumption blowing-heating dryer according to claim 1, characterized in that the air inlet pipeline A (25), the blower (12), the electric heater (13), the regeneration pneumatic valve B (15), the adsorption cylinder B (23), the exhaust pneumatic valve B (8) and the drag reduction pneumatic valve (10) form a heating regeneration passage.
4. The combined zero-air-consumption blowing and heating dryer according to claim 1, characterized in that the adsorption cylinder A (22), the pressure equalizing pneumatic valve (11) and the adsorption cylinder B (23) form a pressure equalizing passage.
5. The combined type zero gas consumption blowing hot dryer according to claim 1, characterized in that the outlet of the electric heater (13) is provided with a temperature sensor T1, and a temperature sensor T2 and a temperature sensor T3 are respectively arranged at the outlets of the adsorption cylinder A (22) and the adsorption cylinder B (23).
6. The combined zero-air-consumption blowing thermal dryer according to claim 1, characterized in that the bottom of the gas-liquid separator (21) is provided with an automatic drainer (1).
7. The combined zero-gas-consumption blowing hot dryer according to claim 1, characterized in that the gas-liquid separator (21), the cold-blowing air regulating valve (2), the cold-blowing pneumatic valve B (6), the adsorption cylinder B (23), the one-way valve B (17) and the air outlet pipeline (24) constitute a cold-blowing regeneration passage.
8. A combined zero gas consumption forced air thermal dryer according to claim 1, characterized in that the evaporator (19) is fitted with a refrigeration system (20).
9. A combined zero-air-consumption forced air thermal dryer according to claim 1, characterized in that the electric heater (13) is connected to a non-return valve a (16) with a regenerative pneumatic valve a (14) interposed between them.
10. A combined zero air consumption forced air thermal dryer according to claim 1, characterized in that the control unit is connected with the temperature sensor T1, the temperature sensor T2 and the temperature sensor T3 respectively by wires and also controls the switching of the inlet pneumatic valve a (3) or the inlet pneumatic valve B (4), the switching of the cold blow pneumatic valve a (5) or the cold blow pneumatic valve B (6), the switching of the outlet pneumatic valve a (7) or the outlet pneumatic valve B (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920496935.1U CN210186794U (en) | 2019-04-17 | 2019-04-17 | Combined zero-gas-consumption blast hot dryer |
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| CN201920496935.1U CN210186794U (en) | 2019-04-17 | 2019-04-17 | Combined zero-gas-consumption blast hot dryer |
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