CN103423909B - Spiral compression-expansiorefrigerator refrigerator - Google Patents
Spiral compression-expansiorefrigerator refrigerator Download PDFInfo
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Abstract
Spiral compression-expansiorefrigerator refrigerator adopts complete axial symmetry and the helical compression head of coaxial line structure, motor, spiral expansion head and housing design method, the approximate Brayton cycle refrigeration principle of application, compared with the endless form of Brayton cycle closer to isotherm compression process, recyclable expansion work, COP is higher; Application multiple coil compression blade reduces the continuous compression method of helical blade pitch and the recompression of spiral angle, step by step diffusion step by step, realizes the multistage centrifugal punching course of high-speed screw blade to gas; By increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously method accelerated gradually, realizes gas to helical blade expansion work process and temperature-fall period; Adopt the method for the axial diffusion reflation of air flow multi-stage to drive spiral expansion blade High Rotation Speed, realize air-flow to multiple coil blade expansion work temperature-fall period step by step; Exquisiteness simple for structure, can be connected directly in pipeline, realizes the open type process of refrigerastion of cooled gas.
Description
Technical field
The present invention relates to a kind of spiral compression-expansiorefrigerator refrigerator, adopt complete axial symmetry and the helical compression head of coaxial line structure, motor and spiral expansion head, the approximate Brayton cycle refrigeration principle of application, compared with the endless form of Brayton cycle closer to isotherm compression process, work done during compression is relatively little, recyclable expansion work, COP is higher; Application multiple coil compression blade changes the continuous compression method of helical compression blade pitch and the recompression of spiral angle, step by step diffusion step by step, realizes the multistage centrifugal ram-compressed process of high-speed screw impeller to gas; By increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gas to helical blade expansion work process and temperature-fall period; Adopt the method for the axial diffusion reflation of air flow multi-stage to drive helical blade High Rotation Speed, realize air-flow to multiple coil blade expansion work temperature-fall period step by step; Exquisiteness simple for structure, external form, like cylindrical, can be connected directly in pipeline, realizes the open type cryogenic refrigeration process of high-temperature gas.
Background technology
The traditional Carnot cycle of refrigeration machine many employings approximate inverse, Stirling cycle, Brayton cycle etc., most system complex, Energy Efficiency Ratio is lower, is difficult to reclaim expansion work, need the compression section of independent separate, cooling section, expansion arc etc., wherein most widely used with Brayton cycle.The present invention is based on the spiral compression-expansiorefrigerator refrigerator that Brayton cycle proposes a kind of open type refrigeration, compression section, motor, expansion arc connect on the same axis, the similar cylindrical structure of integrating compressor, after high-temperature gas enters compression section from spiral compression-expansiorefrigerator refrigerator one end, cryogenic gas is become through multi-stage compression, cooling, again multiple expansion, and discharge from the other end, integrally cooling machine is simple for structure, be convenient to be installed on pipe-line system, high-temperature gas is directly cooled and becomes cryogenic gas, can directly complete open type process of refrigerastion.Brayton cycle is mainly used in large-scale refrigerating system, is generally closed-loop refrigeration system, and be made up of two isobaric procedures, two isentropic procedures, compression process is isentropic procedure, needs more theoretical compression work.The present invention is based on Brayton cycle, the approximate Brayton cycle refrigeration principle of application, owing to have employed longer compression section in compression process, be convenient to compression, while cooling, comparatively Brayton cycle is closer to isotherm compression process, and work done during compression is relatively little.Meanwhile, adopt the swell refrigeration process of multiple expansion diffusion reflation again, whole process is closer to isentropic expansion process, and after expanding, temperature is lower.Brayton cycle can adopt decompressor and compressor coaxially to arrange, general employing Large centrifugal compressors and large centrifugal expansion process, recyclable work done during compression, and refrigeration machine cylinder is comparatively large, is mainly used in larger refrigeration system, the additional cooling system of general needs.Theoretical expansion work in swell refrigeration process of the present invention is also recyclable and pass to compression section by motor axis and compress, can be used for small refrigeration systems, do not need additional cooling system, the work done during compression of compression section is less than Brayton cycle, and Energy Efficiency Ratio comparatively Brayton cycle is higher.Owing to adopting axial diffusion process and the rear air-flow of compression directly to enter expansion arc through motor axis, cylinder bore is less than centrifugal compressor, then does not have unnecessary gas pipeline, and integrally cooling machine diameter is less.In addition, the present invention adopts centrifugal compressed to combine with ram-compressed, contraction principle based on ram-compressed, application continuous multi-stage helical compression blade and multiple axle are to Diffuser Ring, the method of continuous multi-stage compression vertically and vertically diffusion, effectively can make up the deficiency that centrifugal compressed process exists, widen the application power of swinging gas compression machinery in small refrigeration systems.Finally, Brayton cycle adopts single single-stage expansion impeller to carry out swell refrigeration, and depart from isentropic procedure in expansion process comparatively far away, post-expansion gas temperature is higher, and the expansion work of recovery is less.The present invention adopts the inverse process of approximate compression process, by increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realize gases at high pressure to helical blade expansion work process and temperature-fall period, adopt multiple axle to drive helical blade High Rotation Speed to the method for diffusion reflation simultaneously, realize gas to multiple coil blade expansion work temperature-fall period step by step, cryogenic temperature is lower, reclaims work done during compression more.Most refrigeration machine adopts outer time cooling system, refrigeration machine volume is larger, and in the present invention's application shell, while electric motor fan cooling motor, cool heat exchanger in shell, reach the object of cooled compressed section, system architecture is succinctly exquisite, volume is less, uses and is directly installed in gas pipeline, high-temperature gas directly compresses by application open type refrigeration principle, cooling, swell refrigeration lowering the temperature.
Summary of the invention
Brayton refrigeration principle is similar to according to spiral compression-expansiorefrigerator refrigerator, invention spiral compression-expansiorefrigerator refrigerator, utilize the method for adjustable screw compression impeller blade helical pitch and the angle of climb step by step, change adjoining spiral blade pitgh and passage section area, adopt the helical blade of High Rotation Speed step by step centrifugal punching press multi-stage compression method and the method for multistage Diffuser Ring diffusion vertically is axially set, finally realize the centrifugal step by step punching course of gas; The inverse process of expansion process approximate compression process, by increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gases at high pressure to helical blade expansion work process and temperature-fall period; Adopt multiple axle to drive helical blade High Rotation Speed to the method for diffusion reflation, realize gas to multiple coil blade expansion work temperature-fall period step by step, make refrigeration machine volume less, Energy Efficiency Ratio is higher simultaneously.
Technical solution of the present invention:
Spiral compression-expansiorefrigerator refrigerator, comprise housing and movement two parts, housing comprises cylindrical shell (5), left end socket (3), air inlet tube (2), air inlet tube flange (1), right end socket (8), vent connection (9), vent connection flange (10), compression section fin (4), motor radiating sheet (6), expansion arc heat insulation layer (7); Movement comprises compressor head, motor, expansion head three part; Compressor head comprises fin (15) in centrifugal compressed impeller (34), the first Diffuser Ring (11), one-level helical compression blade (33), the second Diffuser Ring (12), deuterostrophies compression blade (13), the 3rd Diffuser Ring (32), three grades of helical compression blades (14), the 4th Diffuser Ring (31), compression cover (16), compression axis (30), shell; Motor comprises fan (29), left support wheel (17), right support wheel (18), stator (28), rotor (27); Expansion head comprises expand cover (19), expansion axis (26), the 5th Diffuser Ring (25), one-level spiral expansion blade (20), the 6th Diffuser Ring (24), deuterostrophies expansion leaves (21), the 7th Diffuser Ring (23), three grades of spiral expansion blades (22); Movement is installed in housing; It is characterized in that: motor is coaxially connected with compressor head and expansion head, compressor head is installed in left side, and expansion head is installed on right side; In compressor head, (16) are covered in installation centrifugal compressed impeller (34) successively from left to right in compression axis (30), the first Diffuser Ring (11), one-level helical compression blade (33), the second Diffuser Ring (12), deuterostrophies compression blade (13), the 3rd Diffuser Ring (32), three grades of helical compression blades (14), the 4th Diffuser Ring (31), compressions; Fin (15) in compression cover (16) conical outer surface mounting shell; Compression axis (30) right side is hollow structure, and has radial air inlet mouth; In expansion head, expansion axis (26) is installed from right to left successively three grades of spiral expansion blades (22), the 7th Diffuser Ring (23), deuterostrophies expansion leaves (21), the 6th Diffuser Ring (24), one-level spiral expansion blade (20), the 5th Diffuser Ring (25), expand cover (19); Expansion axis (26) left side is hollow structure, and has radial exhaust outlet; Compression section helical compression blade is varying pitch continuous type helical compression blade, and helical compression blade pitch at different levels reduces gradually from left to right; Expansion arc spiral expansion blade is varying pitch continuous type spiral expansion blade, and spiral expansion blade pitch at different levels reduces gradually from right to left, and pitch at different levels is comparatively greater than the corresponding helical blade pitch in compression section; Install left support wheel (17) on the left of motor, left support wheel (17) left side provided with fan (29), fan (29) left side is compression cover (16); Install right support wheel (18) on the right side of motor, right support wheel (18) right side is the cover (19) that expands; Outside motor is stator (28), and centre is rotor (27), and rotor (27) axis is hollow structure, and left side connects compression axis (30), and right side connects expansion axis (26); Stator (28) outer surface, left support wheel (17) outer surface, right support wheel (18) cylindrical outer surface contact with cylindrical shell (5) inner surface; First Diffuser Ring (11), the second Diffuser Ring (12), the 3rd Diffuser Ring (32), the 4th Diffuser Ring (31), the 5th Diffuser Ring (25), the 6th Diffuser Ring (24), the 7th Diffuser Ring (23) static state are installed in cylindrical shell (5), and cylindrical outer surface contacts with cylindrical shell (5) inner surface; Cylindrical shell (5) left side outer cylinder installs compression section fin (4), middle outer cylinder mounted motor fin (6), right side outer cylinder installs expansion arc heat insulation layer (7), circumferentially open between compression section fin (4) and motor radiating sheet (6) and arrange steam vent more, open between motor radiating sheet (6) and expansion arc heat insulation layer (7) and arrange air admission hole more; Compressor head cylindrical outer surface, expansion head cylindrical outer surface diameter are slightly less than cylindrical shell (5) internal diameter, and it is inner to be installed on cylindrical shell (5) together with motor; Diffuser Ring at different levels is made up of Diffuser Ring blade, Diffuser Ring inner ring, Diffuser Ring outer ring, Diffuser Ring vane nose circle at different levels song for semicircle and radially gradually become planar shaped to the back-end, is more circumferentially installed between Diffuser Ring outer ring at different levels and Diffuser Ring inner ring at different levels after array.
In shell, fin (15) is the radial fin along compression cover (16) conical outer surface circumference array, and centre equidistantly cuts apart by circumference; Compression section fin (4) be many rows of arranging along cylindrical shell (5) outer cylinder circumferential array perpendicular to the cuboid fin of cylindrical shell (5) outer surface, middlely equidistantly to cut apart by circumference; Motor radiating sheet (6) be many rows of arranging along cylindrical shell (5) outer cylinder circumferential array perpendicular to the cuboid fin of cylindrical shell (5) outer surface, equidistantly cuts apart by circumference in the middle of cuboid fin.
Compression axis (30), rotor (27) axis, expansion axis (26) are connected by shaft coupling; Compression axis (30) right side has the radial hole of axial hole and UNICOM's axial hole, and rotor (27) axis has axially extending bore, and expansion axis (26) left side has the radial hole of axial hole and UNICOM's axial hole.
Spiral compression-expansiorefrigerator refrigerator, adopt approximate Brayton cycle and open loop refrigeration method, it is characterized in that: overall and parts all adopt axial symmetry type structural design, compressor head, cold sink, motor, expansion head, housing are arranged on same axis, pass into expansion head swell refrigeration by motor axis gas channel after the air-flow after compression is cooled; By reducing helical compression blade pitch and spiral angle gradually, adopting the continuous compression method of centrifugal ram-compressed, realizing the centrifugal ram-compressed process of high-speed screw impeller to gas; Adopt the helical blade of High Rotation Speed step by step centrifugal punching press multi-stage compression method and the method for the axial diffusion of multistage Diffuser Ring is axially set, realize the multistage centrifugal punching press pressurization of cooled gas; By increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gases at high pressure to spiral expansion leaf blade expansion acting process and temperature-fall period; Adopt the method for high pressure draught multistage diffusion reflation vertically to drive helical blade High Rotation Speed, realize gas to multiple coil expansion leaves expansion work temperature-fall period step by step; Expansion work is transported to compression section vertically and is reduced compression section work done during compression.
Cooled gas enters the centrifugal compressed impeller (34) of High Rotation Speed by air inlet tube (2), radially CENTRIFUGAL ACCELERATING, air-flow after acceleration diffusion change direction vertically in the first Diffuser Ring (11), enter the one-level helical compression blade (33) of High Rotation Speed again, punching press is centrifuged in one-level helical compression blade (33), pressure raises, circumferential speed to enter in the second Diffuser Ring (12) diffusion change direction vertically after accelerating, enter the deuterostrophies compression blade (13) of High Rotation Speed again, punching press is centrifuged in deuterostrophies compression blade (13), pressure raises, circumferential speed to enter in the 3rd Diffuser Ring (32) diffusion change direction vertically after accelerating, enter three grades of helical compression blades (14) of High Rotation Speed again, punching press is centrifuged in three grades of helical compression blades (14), pressure raises, circumferential speed to enter in the 4th Diffuser Ring (31) after accelerating and becomes gases at high pressure after diffusion vertically, and cooled by fin in shell (15).
Gases at high pressure after compression enter compression axis (30) axial hole along compression axis (30) right radial hole, flow to expansion axis (26) axial hole through rotor (27) axis centre bore again, then enter expansion arc along expansion axis (26) radial hole.
Gases at high pressure enter one-level spiral expansion blade (20) behind the 5th Diffuser Ring (25) change direction, promote one-level spiral expansion blade (20) to rotate, after pressure and temperature reduce, flow velocity increases and enters the 6th Diffuser Ring (24) diffusion and change direction, enter deuterostrophies expansion leaves (21) again, promote deuterostrophies expansion leaves (21) to rotate, after pressure and temperature reduce again, flow velocity increases and enters the 7th Diffuser Ring (23) diffusion and change direction, enter three grades of spiral expansion blades (22) again, promote the rotation of three grades of spiral expansion blades (22), after pressure and temperature reduce again, housing is discharged by vent connection (9).
Cold gas enters housing along cylindrical shell (5) right side air admission hole, and the passage cooling motor entered between stator (28) and rotor (27), enter (15) space of fin in shell through fan (29) left side and cool fin in shell (15) after cooling motor, after cooling, discharging housing along cylindrical shell (5) left side steam vent.
A part of heat that compressor head produces enters environment by the compression section fin (4) in cylindrical shell (5) left side; A part of heat that motor produces enters environment by motor radiating sheet (6); The cold that expansion arc produces is adiabatic by expansion arc heat insulation layer (7) and environment.
Principle Problems involved by scheme:
The approximate Brayton cycle refrigeration principle of spiral compression-expansiorefrigerator refrigerator application, in theoretical cyclic process, Brayton cycle is isentropic Compression process, and spiral compression-expansiorefrigerator refrigerator is owing to have employed multiple coil blade compresses, adopt longer compressor head, compression process is convenient to cylinder and is outwards dispelled the heat, and comparatively Brayton cycle is closer to isotherm compression process, and work done during compression is relatively little.Meanwhile, spiral compression-expansiorefrigerator refrigerator adopts the swell refrigeration process of multiple expansion diffusion reflation again, and whole process is similar to isentropic expansion process.Because whole expansion process is connected on an axis with compression process, theoretical expansion work in swell refrigeration process can reclaim and pass to compression section by motor axis to be compressed, in whole process of refrigerastion, the work done during compression of compression section is less than Brayton cycle, and COP is higher than Brayton cycle.In variable pitch spiral compression machine head of spiral compression-expansiorefrigerator refrigerator compression process, adopt that centrifugal compressed combines with ram-compressed, contraction principle based on ram-compressed, application continuous multi-stage helical compression blade and multiple axle are to Diffuser Ring, the method of continuous multi-stage compression vertically and vertically diffusion, effectively can make up the deficiency that centrifugal compressed process exists, widen the application of swinging gas compression machinery.First, air-flow enters centrifugal compressed impeller (34), and application centrifugal compressed principle carries out initial centrifugation acceleration, and supercharging in the first Diffuser Ring (11).When air-flow after supercharging enters the one-level helical compression blade air inlet of High Rotation Speed, produce ram-compressed effect, after relative velocity reduces, the helical blade with High Rotation Speed accelerates to produce centrifugal compressed gradually, and to helical blade lower motion, static pressure increases; Relative to blade, high velocity air enters helical blade and forms punching press instantaneously, and diffusion gradually in the tapered channels formed at helical blade, when reaching bottom helical blade, static pressure increases; Due to helical blade band moving air flow High Rotation Speed, high pressure draught is formed at blade bottom, when high pressure draught flow to blade bottom, run into static the second Diffuser Ring (12), air-flow diffusion again in the second Diffuser Ring (12), static pressure continues to increase, and changes direction thereupon and enters deuterostrophies compression blade (13), carry out the centrifugal ram-compressed process of next stage, and continue secondary, three stage compression and diffusion process.Three grades of punching courses that overall compression process comprises initial centrifugation compression process, three grades of helical blades drive, four times diffusion crosses system, with centrifugal compressed process in punching course.After air-flow after compression enters compression axis (30) axial hole by compression axis (30) radial hole, then be transported to expansion arc by motor stator (27) axis centre bore.Secondly, because air-flow helical blade in compression process continues air work, produce a large amount of heat, heat enters atmospheric environment by compression cover (16) external compression section fin (4).Compressor head inside spin rotor high-speed rotates, and more than 100 meters per second of maximum line velocity, more than 10000 turns per minute of maximum speed, can complete the centrifugal ram-compressed process of minor diameter helical rotor.In compression process, helical blade pitch size at different levels, helical blade quantity, helical angle size etc. can be determined according to the compressible performance of real gas, and number of compression stages can be determined according to pressure ratio.Utilize the method for adjustable screw compression impeller blade helical pitch and the angle of climb step by step, change adjoining spiral blade pitgh and passage section area, adopt the helical blade of High Rotation Speed step by step centrifugal punching press multi-stage compression method and the method for multistage Diffuser Ring diffusion vertically is axially set, finally realize the centrifugal step by step punching course of gas.The inverse process of expansion process approximate compression process, by increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gases at high pressure to helical blade expansion work process and temperature-fall period; Adopt multiple axle to drive helical blade High Rotation Speed to the method for diffusion reflation simultaneously, realize gas to multiple coil blade expansion work temperature-fall period step by step.Expansion work can be delivered to compression section vertically and reduce compression section work done during compression, thus improves system COP.Cold gas enters housing along cylindrical shell (5) right side air admission hole, enter the passage cooling motor between stator (28) and rotor (27), enter (15) space of fin in shell through fan (29) left side and cool fin in shell (15) after cooling motor, after cooling, discharging housing along cylindrical shell (5) left side venthole.Cooled gas is discharged with cold gas heat exchange by the compression section fin (4) in cylindrical shell (5) left side by a part of heat that compression process produces in compressor head, and a part is carried out forced-convection heat transfer by the cold gas after fin in shell (15) and cooling motor and discharged housing.Multiple expansion process is separated by heat insulation layer (7) with extraneous, prevents swell refrigeration amount from diffusing to circle of place.
Technical characterstic of the present invention:
Spiral compression-expansiorefrigerator refrigerator compression section, motor, expansion arc connect on the same axis, the similar cylindrical structure of integrating compressor, high temperature is cooled after gas enters compression section from spiral compression-expansiorefrigerator refrigerator one end, cryogenic gas is become through multi-stage compression, cooling, again multiple expansion, and discharge from the other end, integrally cooling machine is simple for structure, is convenient to be installed on pipe-line system, high-temperature gas is directly cooled and becomes cryogenic gas, complete open type process of refrigerastion; The approximate Brayton cycle refrigeration principle of spiral compression-expansiorefrigerator refrigerator application, comparatively Brayton cycle is closer to isotherm compression process, and work done during compression is relatively little; Spiral compression-expansiorefrigerator refrigerator adopts the swell refrigeration process of multiple expansion diffusion reflation again, and whole process is similar to isentropic expansion process; Theoretical expansion work in spiral compression-expansiorefrigerator refrigerator swell refrigeration process can reclaim and pass to compression section by motor axis to be compressed, and in whole process of refrigerastion, the work done during compression of compression section is less than Brayton cycle, and COP is higher than Brayton cycle; In variable pitch spiral compression machine head of spiral compression-expansiorefrigerator refrigerator compression process, adopt that centrifugal compressed combines with ram-compressed, contraction principle based on ram-compressed, application continuous multi-stage helical compression blade and multiple axle are to Diffuser Ring, the method of continuous multi-stage compression vertically and vertically diffusion, effectively can make up the deficiency that centrifugal compressed process exists, widen the application of swinging gas compression machinery; In spiral compression-expansiorefrigerator refrigerator compression process, helical blade pitch size at different levels, helical blade quantity, helical angle size etc. can be determined according to the compressible performance of real gas, and number of compression stages can be determined according to pressure ratio; Spiral compression-expansiorefrigerator refrigerator utilizes the method reducing helical compression impeller blade helical pitch and the angle of climb step by step, reduce adjoining spiral blade pitgh and passage section area, adopt the helical blade of High Rotation Speed step by step centrifugal punching press multi-stage compression method and the method for multistage Diffuser Ring diffusion vertically is axially set, finally realize the centrifugal step by step punching course of gas; Gases at high pressure after compression are delivered to expansion arc by the motor axis of hollow and carry out swell refrigeration after cooling; The inverse process of spiral compression-expansiorefrigerator refrigerator expansion process approximate compression process, by increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gases at high pressure to helical blade expansion work process and temperature-fall period; Spiral compression-expansiorefrigerator refrigerator adopts multiple axle to drive helical blade High Rotation Speed to the method for diffusion reflation, realizes gas to multiple coil blade expansion work temperature-fall period step by step; Cool heat exchanger in shell while electric motor fan cooling motor in spiral compression-expansiorefrigerator refrigerator application shell, reach the object of cooled compressed section, system architecture is succinctly exquisite, can be connected directly in pipeline and be cooled by high-temperature gas.
Accompanying drawing explanation
Figure 1 shows that spiral compression-expansiorefrigerator refrigerator housing.
Figure 2 shows that spiral compression-expansiorefrigerator refrigerator movement.
Detailed description of the invention
Approximate Brayton cycle and open loop refrigeration method, entirety and parts are adopted all to adopt axial symmetry type structural design spiral compression-expansiorefrigerator refrigerator, compressor head, cold sink, motor, expansion head, housing are arranged on same axis, pass into expansion head swell refrigeration by motor axis gas channel after the air-flow after compression is cooled; By reducing helical compression blade pitch and spiral angle gradually, adopting the continuous compression method of centrifugal ram-compressed, realizing the centrifugal ram-compressed process of high-speed screw impeller to gas; Adopt the helical blade of High Rotation Speed step by step centrifugal punching press multi-stage compression method and the method for the axial diffusion of multistage Diffuser Ring is axially set, realize the multistage centrifugal punching press pressurization of cooled gas; By increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gases at high pressure to spiral expansion leaf blade expansion acting process and temperature-fall period; Adopt the method for high pressure draught multistage diffusion reflation vertically to drive helical blade High Rotation Speed, realize gas to multiple coil expansion leaves expansion work temperature-fall period step by step; Expansion work is transported to compression section vertically and is reduced compression section work done during compression.
Processing and manufacturing spiral compression-expansiorefrigerator refrigerator, comprise housing and movement two parts, housing comprises cylindrical shell (5), left end socket (3), air inlet tube (2), air inlet tube flange (1), right end socket (8), vent connection (9), vent connection flange (10), compression section fin (4), motor radiating sheet (6), expansion arc heat insulation layer (7); Movement comprises compressor head, motor, expansion head three part; Compressor head comprises fin (15) in centrifugal compressed impeller (34), the first Diffuser Ring (11), one-level helical compression blade (33), the second Diffuser Ring (12), deuterostrophies compression blade (13), the 3rd Diffuser Ring (32), three grades of helical compression blades (14), the 4th Diffuser Ring (31), compression cover (16), compression axis (30), shell; Motor comprises fan (29), left support wheel (17), right support wheel (18), stator (28), rotor (27); Expansion head comprises expand cover (19), expansion axis (26), the 5th Diffuser Ring (25), one-level spiral expansion blade (20), the 6th Diffuser Ring (24), deuterostrophies expansion leaves (21), the 7th Diffuser Ring (23), three grades of spiral expansion blades (22); Movement is installed in housing; Parts meet following connecting relation: motor is coaxially connected with compressor head and expansion head, and compressor head is installed in left side, and expansion head is installed on right side; In compressor head, (16) are covered in installation centrifugal compressed impeller (34) successively from left to right in compression axis (30), the first Diffuser Ring (11), one-level helical compression blade (33), the second Diffuser Ring (12), deuterostrophies compression blade (13), the 3rd Diffuser Ring (32), three grades of helical compression blades (14), the 4th Diffuser Ring (31), compressions; Fin (15) in compression cover (16) conical outer surface mounting shell; Compression axis (30) right side is hollow structure, and has radial air inlet mouth; In expansion head, expansion axis (26) is installed from right to left successively three grades of spiral expansion blades (22), the 7th Diffuser Ring (23), deuterostrophies expansion leaves (21), the 6th Diffuser Ring (24), one-level spiral expansion blade (20), the 5th Diffuser Ring (25), expand cover (19); Expansion axis (26) left side is hollow structure, and has radial exhaust outlet; Compression section helical compression blade is varying pitch continuous type helical compression blade, and helical compression blade pitch at different levels reduces gradually from left to right; Expansion arc spiral expansion blade is varying pitch continuous type spiral expansion blade, and spiral expansion blade pitch at different levels reduces gradually from right to left, and pitch at different levels is comparatively greater than the corresponding helical blade pitch in compression section; Install left support wheel (17) on the left of motor, left support wheel (17) left side provided with fan (29), fan (29) left side is compression cover (16); Install right support wheel (18) on the right side of motor, right support wheel (18) right side is the cover (19) that expands; Outside motor is stator (28), and centre is rotor (27), and rotor (27) axis is hollow structure, and left side connects compression axis (30), and right side connects expansion axis (26); Stator (28) outer surface, left support wheel (17) outer surface, right support wheel (18) cylindrical outer surface contact with cylindrical shell (5) inner surface; First Diffuser Ring (11), the second Diffuser Ring (12), the 3rd Diffuser Ring (32), the 4th Diffuser Ring (31), the 5th Diffuser Ring (25), the 6th Diffuser Ring (24), the 7th Diffuser Ring (23) static state are installed in cylindrical shell (5), and cylindrical outer surface contacts with cylindrical shell (5) inner surface; Cylindrical shell (5) left side outer cylinder installs compression section fin (4), middle outer cylinder mounted motor fin (6), right side outer cylinder installs expansion arc heat insulation layer (7), circumferentially open between compression section fin (4) and motor radiating sheet (6) and arrange steam vent more, open between motor radiating sheet (6) and expansion arc heat insulation layer (7) and arrange air admission hole more; Compressor head cylindrical outer surface, expansion head cylindrical outer surface diameter are slightly less than cylindrical shell (5) internal diameter, and it is inner to be installed on cylindrical shell (5) together with motor; Diffuser Ring at different levels is made up of Diffuser Ring blade, Diffuser Ring inner ring, Diffuser Ring outer ring, Diffuser Ring vane nose circle at different levels song for semicircle and radially gradually become planar shaped to the back-end, is more circumferentially installed between Diffuser Ring outer ring at different levels and Diffuser Ring inner ring at different levels after array.
In shell, fin (15) is the radial fin along compression cover (16) conical outer surface circumference array, and centre equidistantly cuts apart by circumference; Compression section fin (4) be many rows of arranging along cylindrical shell (5) outer cylinder circumferential array perpendicular to the cuboid fin of cylindrical shell (5) outer surface, middlely equidistantly to cut apart by circumference; Motor radiating sheet (6) be many rows of arranging along cylindrical shell (5) outer cylinder circumferential array perpendicular to the cuboid fin of cylindrical shell (5) outer surface, equidistantly cuts apart by circumference in the middle of cuboid fin.
Compression axis (30), rotor (27) axis, expansion axis (26) are connected by shaft coupling; Compression axis (30) right side has the radial hole of axial hole and UNICOM's axial hole, and rotor (27) axis has axially extending bore, and expansion axis (26) left side has the radial hole of axial hole and UNICOM's axial hole.
The gas that will be cooled squeezes into the centrifugal compressed impeller (34) of High Rotation Speed by air inlet tube (2), radially CENTRIFUGAL ACCELERATING, air-flow after acceleration diffusion change direction vertically in the first Diffuser Ring (11), enter the one-level helical compression blade (33) of High Rotation Speed again, punching press is centrifuged in one-level helical compression blade (33), pressure raises, circumferential speed to enter in the second Diffuser Ring (12) diffusion change direction vertically after accelerating, enter the deuterostrophies compression blade (13) of High Rotation Speed again, punching press is centrifuged in deuterostrophies compression blade (13), pressure raises, circumferential speed to enter in the 3rd Diffuser Ring (32) diffusion change direction vertically after accelerating, enter three grades of helical compression blades (14) of High Rotation Speed again, punching press is centrifuged in three grades of helical compression blades (14), pressure raises, circumferential speed to enter in the 4th Diffuser Ring (31) after accelerating and becomes gases at high pressure after diffusion vertically, and cooled by fin in shell (15).
Gases at high pressure after compression are squeezed into compression axis (30) axial hole along compression axis (30) right radial hole, flow to expansion axis (26) axial hole through rotor (27) axis centre bore again, then enter expansion arc along expansion axis (26) radial hole.
Gases at high pressure are changed behind direction through the 5th Diffuser Ring (25) and squeezes into one-level spiral expansion blade (20), promote one-level spiral expansion blade (20) to rotate, after pressure and temperature reduce, flow velocity increases and enters the 6th Diffuser Ring (24) diffusion and change direction, enter deuterostrophies expansion leaves (21) again, promote deuterostrophies expansion leaves (21) to rotate, after pressure and temperature reduce again, flow velocity increases and enters the 7th Diffuser Ring (23) diffusion and change direction, enter three grades of spiral expansion blades (22) again, promote the rotation of three grades of spiral expansion blades (22), after pressure and temperature reduce again, housing is discharged by vent connection (9).
Cold gas enters housing along cylindrical shell (5) right side air admission hole, and the passage cooling motor entered between stator (28) and rotor (27), enter (15) space of fin in shell through fan (29) left side and cool fin in shell (15) after cooling motor, after cooling, discharging housing along cylindrical shell (5) left side venthole.
A part of heat that compressor head produces enters environment by the compression section fin (4) in cylindrical shell (5) left side; A part of heat that motor produces enters environment by motor radiating sheet (6); The cold that expansion arc produces is adiabatic by expansion arc heat insulation layer (7) and environment.
Claims (9)
1. spiral compression-expansiorefrigerator refrigerator, comprise housing and movement two parts, housing comprises cylindrical shell (5), left end socket (3), air inlet tube (2), air inlet tube flange (1), right end socket (8), vent connection (9), vent connection flange (10), compression section fin (4), motor radiating sheet (6), expansion arc heat insulation layer (7); Movement comprises compressor head, motor, expansion head three part; Compressor head comprises fin (15) in centrifugal compressed impeller (34), the first Diffuser Ring (11), one-level helical compression blade (33), the second Diffuser Ring (12), deuterostrophies compression blade (13), the 3rd Diffuser Ring (32), three grades of helical compression blades (14), the 4th Diffuser Ring (31), compression cover (16), compression axis (30), shell; Motor comprises fan (29), left support wheel (17), right support wheel (18), stator (28), rotor (27); Expansion head comprises expand cover (19), expansion axis (26), the 5th Diffuser Ring (25), one-level spiral expansion blade (20), the 6th Diffuser Ring (24), deuterostrophies expansion leaves (21), the 7th Diffuser Ring (23), three grades of spiral expansion blades (22); Movement is installed in housing; It is characterized in that: motor is coaxially connected with compressor head and expansion head, compressor head is installed in left side, and expansion head is installed on right side; In compressor head, (16) are covered in installation centrifugal compressed impeller (34) successively from left to right in compression axis (30), the first Diffuser Ring (11), one-level helical compression blade (33), the second Diffuser Ring (12), deuterostrophies compression blade (13), the 3rd Diffuser Ring (32), three grades of helical compression blades (14), the 4th Diffuser Ring (31), compressions; Fin (15) in compression cover (16) conical outer surface mounting shell; Compression axis (30) right side is hollow structure, and has radial air inlet mouth; In expansion head, expansion axis (26) is installed from right to left successively three grades of spiral expansion blades (22), the 7th Diffuser Ring (23), deuterostrophies expansion leaves (21), the 6th Diffuser Ring (24), one-level spiral expansion blade (20), the 5th Diffuser Ring (25), expand cover (19); Expansion axis (26) left side is hollow structure, and has radial exhaust outlet; Compression section helical compression blade is varying pitch continuous type helical compression blade, and helical compression blade pitch at different levels reduces gradually from left to right; Expansion arc spiral expansion blade is varying pitch continuous type spiral expansion blade, and spiral expansion blade pitch at different levels reduces gradually from right to left, and pitch at different levels is comparatively greater than the corresponding helical blade pitch in compression section; Install left support wheel (17) on the left of motor, left support wheel (17) left side provided with fan (29), fan (29) left side is compression cover (16); Install right support wheel (18) on the right side of motor, right support wheel (18) right side is the cover (19) that expands; Outside motor is stator (28), and centre is rotor (27), and rotor (27) axis is hollow structure, and left side connects compression axis (30), and right side connects expansion axis (26); Stator (28) outer surface, left support wheel (17) outer surface, right support wheel (18) cylindrical outer surface contact with cylindrical shell (5) inner surface; First Diffuser Ring (11), the second Diffuser Ring (12), the 3rd Diffuser Ring (32), the 4th Diffuser Ring (31), the 5th Diffuser Ring (25), the 6th Diffuser Ring (24), the 7th Diffuser Ring (23) static state are installed in cylindrical shell (5), and cylindrical outer surface contacts with cylindrical shell (5) inner surface; Cylindrical shell (5) left side outer cylinder installs compression section fin (4), middle outer cylinder mounted motor fin (6), right side outer cylinder installs expansion arc heat insulation layer (7), circumferentially open between compression section fin (4) and motor radiating sheet (6) and arrange steam vent more, open between motor radiating sheet (6) and expansion arc heat insulation layer (7) and arrange air admission hole more; Compressor head cylindrical outer surface, expansion head cylindrical outer surface diameter are slightly less than cylindrical shell (5) internal diameter, and it is inner to be installed on cylindrical shell (5) together with motor; Diffuser Ring at different levels is made up of Diffuser Ring blade, Diffuser Ring inner ring, Diffuser Ring outer ring, Diffuser Ring vane nose circle at different levels song for semicircle and radially gradually become planar shaped to the back-end, is more circumferentially installed between Diffuser Ring outer ring at different levels and Diffuser Ring inner ring at different levels after array.
2. spiral compression-expansiorefrigerator refrigerator according to claim 1, is characterized in that: in shell, fin (15) is the radial fin along compression cover (16) conical outer surface circumference array, and centre equidistantly cuts apart by circumference; Compression section fin (4) be many rows of arranging along cylindrical shell (5) outer cylinder circumferential array perpendicular to the cuboid fin of cylindrical shell (5) outer surface, middlely equidistantly to cut apart by circumference; Motor radiating sheet (6) be many rows of arranging along cylindrical shell (5) outer cylinder circumferential array perpendicular to the cuboid fin of cylindrical shell (5) outer surface, equidistantly cuts apart by circumference in the middle of cuboid fin.
3. spiral compression-expansiorefrigerator refrigerator according to claim 1, is characterized in that: compression axis (30), rotor (27) axis, expansion axis (26) are connected by shaft coupling; Compression axis (30) right side has the radial hole of axial hole and UNICOM's axial hole, and rotor (27) axis has axially extending bore, and expansion axis (26) left side has the radial hole of axial hole and UNICOM's axial hole.
4. spiral compression-expansiorefrigerator refrigerator, adopt approximate Brayton cycle and open loop refrigeration method, it is characterized in that: overall and parts all adopt axial symmetry type construction design method, compressor head, cold sink, motor, expansion head, housing are arranged on same axis, pass into expansion head swell refrigeration by motor axis gas channel after the air-flow after compression is cooled; By reducing helical compression blade pitch and spiral angle gradually, adopting the continuous compression method of centrifugal ram-compressed, realizing the centrifugal ram-compressed process of high-speed screw impeller to gas; Adopt the helical blade of High Rotation Speed step by step centrifugal punching press multi-stage compression method and the method for the axial diffusion of multistage Diffuser Ring is axially set, realize the multistage centrifugal punching press pressurization of cooled gas; By increasing spiral expansion blade pitch and spiral angle, high pressure draught expands the expand continuously work method accelerated gradually, realizes gases at high pressure to spiral expansion leaf blade expansion acting process and temperature-fall period; Adopt the method for high pressure draught multistage diffusion reflation vertically to drive helical blade High Rotation Speed, realize gas to multiple coil expansion leaves expansion work temperature-fall period step by step; Expansion work is transported to compression section vertically and is reduced compression section work done during compression.
5. spiral compression-expansiorefrigerator refrigerator according to claim 4, it is characterized in that: cooled gas enters the centrifugal compressed impeller (34) of High Rotation Speed by air inlet tube (2), radially CENTRIFUGAL ACCELERATING, air-flow after acceleration diffusion change direction vertically in the first Diffuser Ring (11), enter the one-level helical compression blade (33) of High Rotation Speed again, punching press is centrifuged in one-level helical compression blade (33), pressure raises, circumferential speed to enter in the second Diffuser Ring (12) diffusion change direction vertically after accelerating, enter the deuterostrophies compression blade (13) of High Rotation Speed again, punching press is centrifuged in deuterostrophies compression blade (13), pressure raises, circumferential speed to enter in the 3rd Diffuser Ring (32) diffusion change direction vertically after accelerating, enter three grades of helical compression blades (14) of High Rotation Speed again, punching press is centrifuged in three grades of helical compression blades (14), pressure raises, circumferential speed to enter in the 4th Diffuser Ring (31) after accelerating and becomes gases at high pressure after diffusion vertically, and cooled by fin in shell (15).
6. spiral compression-expansiorefrigerator refrigerator according to claim 4, it is characterized in that: the gases at high pressure after compression enter compression axis (30) axial hole along compression axis (30) right radial hole, flow to expansion axis (26) axial hole through rotor (27) axis centre bore again, then enter expansion arc along expansion axis (26) radial hole.
7. spiral compression-expansiorefrigerator refrigerator according to claim 4, it is characterized in that: gases at high pressure enter one-level spiral expansion blade (20) behind the 5th Diffuser Ring (25) change direction, promote one-level spiral expansion blade (20) to rotate, after pressure and temperature reduce, flow velocity increases and enters the 6th Diffuser Ring (24) diffusion and change direction, enter deuterostrophies expansion leaves (21) again, promote deuterostrophies expansion leaves (21) to rotate, after pressure and temperature reduce again, flow velocity increases and enters the 7th Diffuser Ring (23) diffusion and change direction, enter three grades of spiral expansion blades (22) again, promote the rotation of three grades of spiral expansion blades (22), after pressure and temperature reduce again, housing is discharged by vent connection (9).
8. spiral compression-expansiorefrigerator refrigerator according to claim 4, it is characterized in that: cold gas enters housing along cylindrical shell (5) right side air admission hole, and the passage cooling motor entered between stator (28) and rotor (27), enter (15) space of fin in shell through fan (29) left side and cool fin in shell (15) after cooling motor, after cooling, discharging housing along cylindrical shell (5) left side steam vent.
9. spiral compression-expansiorefrigerator refrigerator according to claim 4, is characterized in that: a part of heat that compressor head produces enters environment by the compression section fin (4) in cylindrical shell (5) left side; A part of heat that motor produces enters environment by motor radiating sheet (6); The cold that expansion arc produces is adiabatic by expansion arc heat insulation layer (7) and environment.
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| CN110577259A (en) * | 2019-10-30 | 2019-12-17 | 广船国际有限公司 | Seawater desalination system and seawater desalination ship |
| CN114777348B (en) * | 2022-04-20 | 2023-05-26 | 山东香果冻干机械科技有限公司 | Refrigeration system of freeze-drying equipment and operation method |
| CN116251451A (en) * | 2022-12-29 | 2023-06-13 | 重庆大学 | Gas condensate recovery device and method |
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| JP2004251528A (en) * | 2003-02-20 | 2004-09-09 | Mitsubishi Electric Corp | Refrigerating air-conditioning device |
| JP4389699B2 (en) * | 2004-07-07 | 2009-12-24 | ダイキン工業株式会社 | Refrigeration equipment |
| JP2007078260A (en) * | 2005-09-14 | 2007-03-29 | Sanden Corp | Thermal drive power generation air conditioning device |
| JP2009063247A (en) * | 2007-09-07 | 2009-03-26 | Hitachi Appliances Inc | Refrigeration cycle device, and fluid machine using it |
| CN101270929A (en) * | 2008-04-01 | 2008-09-24 | 中国科学院广州能源研究所 | Expansion-compression integrated device for refrigerating system |
| US8511112B2 (en) * | 2009-06-02 | 2013-08-20 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
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