CN110375563B - Heat exchange and water removal structure of compressed gas freezing dryer - Google Patents
Heat exchange and water removal structure of compressed gas freezing dryer Download PDFInfo
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- CN110375563B CN110375563B CN201910725754.6A CN201910725754A CN110375563B CN 110375563 B CN110375563 B CN 110375563B CN 201910725754 A CN201910725754 A CN 201910725754A CN 110375563 B CN110375563 B CN 110375563B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 33
- 238000007710 freezing Methods 0.000 title description 2
- 230000008014 freezing Effects 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000000926 separation method Methods 0.000 claims abstract description 69
- 230000000694 effects Effects 0.000 abstract description 18
- 239000007789 gas Substances 0.000 description 77
- 238000005057 refrigeration Methods 0.000 description 31
- 238000003466 welding Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 17
- 239000000463 material Substances 0.000 description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 230000009471 action Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000005484 gravity Effects 0.000 description 10
- 230000009467 reduction Effects 0.000 description 7
- 239000010963 304 stainless steel Substances 0.000 description 6
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000005493 welding type Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/224—Longitudinal partitions
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid Mechanics (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Drying Of Gases (AREA)
Abstract
The invention provides a heat exchange and water removal structure of a compressed gas freeze dryer, which can solve the problems of the prior equipment such as compact structure, poor gas-water separation effect, easy ice blockage and large pressure difference of compressed gas in and out. The gas-liquid separation device comprises a first pipe vertically arranged and a second pipe arranged in the first pipe, wherein the bottom of the second pipe is not contacted with the bottom of the first pipe, a gas-liquid separation cavity is formed between the first pipe and the second pipe, a liquid collecting cavity is formed at the bottom of the gas-liquid separation cavity, a refrigerating cavity is arranged in the second pipe, a refrigerating source outlet and a refrigerating source inlet are respectively arranged in the refrigerating cavity, the refrigerating cavity is communicated with a gas inlet, the gas-liquid separation device further comprises one or more than one third pipe, one end of each third pipe is communicated with the outside to serve as a gas outlet, the other end of each third pipe is communicated with the upper part of the liquid collecting cavity, gas enters from the gas inlet, after being cooled by the refrigerating cavity and separated by the gas-liquid separation cavity, condensate liquid is separated out, flows to the liquid collecting cavity, and the gas is discharged from the gas outlet through the third pipe.
Description
Technical Field
The invention relates to the technical field of gas dryers, in particular to a heat exchange and water removal structure of a compressed gas freeze dryer.
Background
The heat exchange structure of the existing compressed air dryer mainly comprises the following types: in the first category, as shown in fig. 6, the heat exchange structure of a general freeze dryer is that a barrel body separated from a1 a-cold heat exchanger, a 2 a-evaporator and a 3 a-gas-liquid separator is manufactured, the structure is complex, the manufacturing is complex, the volume is huge, the evaporator adopts a copper-aluminum fin type or stainless steel fin type heat exchanger, the fin gap is small, condensate is easy to freeze in the evaporator, and ice blocking phenomenon is generated. The second type, plate or plate-fin type heat exchanger for a cold dryer, as shown in fig. 7, has the following problems: 1. the cold-heat exchange and evaporator adopts an aluminum plate-fin heat exchanger or a stainless steel plate heat exchanger, and welded junctions are easy to leak and cannot be maintained; 2. the plate is thinner, is easy to corrode and is not capable of being maintained; 3. because of the small volume, the gas-liquid separation effect is poor; if the external vapor-liquid separator is arranged, the effect of compact structure can not be achieved; 4. the gap between the plates is small, the evaporator is easy to be blocked by dirt, more dirt is accumulated to influence the heat exchange effect, the resistance is increased, so that the inlet and outlet of compressed air generate larger and larger pressure difference, condensate is easy to freeze in the evaporator to block the compressed air channel, and ice blocking phenomenon is generated; 5. the manufacturing is complex, and only professional plate-type or plate-fin heat exchanger factories can manufacture the plate-type or plate-fin heat exchanger, so that the cost is high. Third, a cold-heat exchanger and an evaporator are built in a tub, and a dryer is shown in fig. 8, in which: a-refrigerant inlet, b-refrigerant outlet, h-air inlet, i-air outlet, g-spiral tube, e-filtrate net, f-evaporator, evaporator adopts copper aluminum fin type or stainless steel fin type heat exchanger, this kind of structure has the following problems: 1) The gaps of the fins are small, condensate is easy to freeze in the evaporator, and ice blockage is generated; 2) The device has no special gas-liquid separation device, but relies on natural gravity to separate liquid, so that the liquid is easily taken away by air flow, and the gas-liquid separation effect is poor; 3) The manufacturing precision requirement is higher, the manufacturing process is complex, and the cost is high.
In summary, the heat exchange structure of the existing compressed air dryer is not ideal.
Disclosure of Invention
Aiming at the problems, the invention provides a heat exchange and water removal structure of a compressed gas freeze dryer, which has the advantages of compact structure, corrosion prevention, no secondary pollution, small pressure loss, reduction of ice blockage and leakage phenomena, simple process, low cost and good liquid-vapor separation effect.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a structure of compressed gas freeze dryer heat transfer dewatering which characterized in that: the gas-liquid separation device comprises a first pipe vertically arranged and a second pipe arranged in the first pipe, wherein the bottom of the second pipe is not in contact with the bottom of the first pipe, a gas-liquid separation cavity is formed between the first pipe and the second pipe, a liquid collecting cavity is formed at the bottom of the gas-liquid separation cavity, a refrigerating cavity is arranged in the second pipe, a refrigerating source outlet and a refrigerating source inlet are respectively arranged in the refrigerating cavity, the upper part of the gas-liquid separation cavity is communicated with a gas inlet, the gas-liquid separation device further comprises one or more third pipes, one ends of the third pipes are communicated with the outside to serve as a gas outlet, the other ends of the third pipes are communicated with the upper part of the liquid collecting cavity, gas enters from the gas inlet, is cooled by the refrigerating cavity and separated by the gas-liquid separation cavity, condensate is separated out from the gas-liquid separation cavity, the gas is discharged from the gas outlet through the third pipes, and a liquid drain pipe communicated with the lower part of the liquid collecting cavity is further arranged at the bottom of the first pipe, and the condensate is discharged by the liquid drain pipe.
Preferably, the top of the second pipe is closed, one or more fourth pipes are arranged in the refrigerating cavity to increase the heat exchange area, compressed gas flows in the fourth pipes, the refrigerating source is arranged outside the fourth pipes, and the fourth pipes are used for communicating the gas inlet with the upper part of the gas-liquid separation cavity.
Preferably, the top of the second pipe is open, one or more fourth pipes are arranged in the refrigerating cavity, compressed gas flows outside the fourth pipes, the refrigerating source flows inside the fourth pipes, and the compressed gas enters the upper part of the gas-liquid separation cavity after entering from the inlet and passing through the outer sides of the fourth pipes.
Preferably, the device further comprises a fifth pipe arranged in the second pipe, wherein the lower end of the fourth pipe is communicated with the lower end of the fifth pipe, the fifth pipe is communicated with the gas inlet, and the gas inlet is arranged at the upper part of the fifth pipe.
Preferably, the third pipe is arranged in the fifth pipe, and the top of the third pipe penetrates out of the fifth pipe to form the gas outlet.
Preferably, the third tubes are multiple and uniformly distributed in the fifth tube.
Preferably, the gas separator further comprises a fifth pipe arranged in the second pipe, the third pipe is arranged in the fifth pipe, the gas inlet is formed in the upper portion of the fifth pipe, the third pipe penetrates through the fifth pipe to form the gas outlet, a sixth pipe is further arranged in the fifth pipe, and the lower portion of the fifth pipe is communicated with the upper portion of the gas-liquid separation cavity through the sixth pipe.
Preferably, the outer wall of the second tube is provided with a spiral sheet.
Preferably, a baffle plate is arranged in the fifth pipe.
The invention has the beneficial effects that:
a) The structure is compact: four functions of cold-heat exchange, refrigeration cooling, gas-water separation, condensed water storage and discharge can be integrated.
B) The gas-liquid separation effect is better: the device is vertically arranged, the gas-water separation stroke is greatly prolonged compared with that of the traditional dryer, and the gas-liquid separation effect is better under the action of rotation separation and gravity of compressed gas
C) The pressure difference between the inlet and the outlet of the compressed gas is small: the compressed gas has larger flow sectional area in the flowing process, is not easy to be blocked by dirt, and has small inlet-outlet pressure difference.
D) The material utilization rate is high, and the second pipe and the fifth pipe can separate a plurality of chambers and can be used as heat exchange surfaces for refrigeration.
E) Leakage reduction: and compared with fin type, plate-fin type and plate-type heat exchangers, the argon arc welding type heat exchanger is made of 304 stainless steel materials, has thicker heat exchange materials and fewer welding spots, and greatly reduces the risks of corrosion leakage and welding spot leakage.
F) Reducing ice blockage phenomenon: the stainless steel heat exchange tube with the inner diameter larger than 10mm is adopted in the fourth tube, and the gap is far larger than the gap of 2-3mm of the fin type, plate type or plate fin type heat exchanger, so that the occurrence of ice blockage phenomenon is greatly reduced.
G) The manufacturing process is simple: all adopt simple welding process, need not special preparation equipment, make simply.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
fig. 2 is a schematic structural view of embodiment 2;
FIG. 3 is a schematic structural view of embodiment 3;
fig. 4 is a schematic structural view of embodiment 4;
Fig. 5 is a schematic structural view of embodiment 5;
FIG. 6 is a schematic view of a typical freeze dryer heat exchange configuration;
FIG. 7 is a schematic view of the structure of a plate or plate fin cold dryer heat exchanger;
Fig. 8 is a schematic diagram of a structure of a cold dryer in which a cold heat exchanger and an evaporator are disposed in one tub.
Detailed Description
The technical scheme of the invention is described below with reference to the accompanying drawings and examples.
Example 1: referring to fig. 1, the invention provides a heat exchange and water removal structure of a compressed gas freeze dryer, which comprises a first pipe 1 vertically arranged, and a second pipe 2 arranged in the first pipe 1, wherein the outer diameter of the second pipe 2 is smaller than the inner diameter of the first pipe 1, the second pipe 2 is preferably arranged coaxially with the first pipe 1, the bottom of the second pipe 2 is not contacted with the bottom of the first pipe 1, a gas-liquid separation cavity 11 is formed between the first pipe 1 and the second pipe 2, and a spiral sheet 17 is arranged in the gas-liquid separation cavity 11. The bottom of the gas-liquid separation cavity 11 forms a liquid collecting cavity 12, the bottom of the second pipe 2 is sealed, the top of the second pipe is also sealed, a refrigeration cavity 13 is arranged in the second pipe, the refrigeration cavity 13 is respectively provided with a refrigeration source outlet 15 and a refrigeration source inlet 14, the refrigeration source inlet 14 is arranged at the lower part of the refrigeration cavity 13, the refrigeration source outlet 15 is arranged at the upper part of the refrigeration cavity 13, the refrigeration source inlet 14 and the refrigeration source outlet 15 penetrate through the first pipe 1 to facilitate the circulation of refrigeration source, the upper part of the gas-liquid separation cavity 11 is communicated with the gas inlet 6, one or more than one third pipe 3 is also included, one end of the third pipe 3 is communicated with the outside as a gas outlet 7, the other end is communicated with the upper part of the liquid collecting cavity 12, the bottom of the first pipe 1 is also provided with a liquid discharging pipe 16 communicated with the lower part of the liquid collecting cavity 12, in this embodiment, the gas enters from the gas inlet 6, firstly enters from above the refrigerating cavity 13 to the upper part of the gas-liquid separation cavity 11, exchanges heat with the refrigerating source in the refrigerating cavity 13, and under the action of the spiral sheet 17, the compressed gas spirally descends, meanwhile, the compressed gas contacts with the outer surface of the second pipe 2, is refrigerated by the low-temperature refrigerating source in the refrigerating cavity 13, the temperature continues to decrease, a large amount of liquid water is generated, meanwhile, the compressed gas generates centrifugal force in the high-speed rotation downward flow process under the action of the spiral sheet 17, the liquid water and the gas are separated under the dual action of the centrifugal force and the gravity, and the liquid water enters the lower part of the liquid collecting cavity 12 along the inner wall of the first pipe 1 and is discharged by the liquid discharge pipe 16. And the compressed gas of a dry low temperature is discharged from the third pipe 3.
The invention has the following advantages:
a) The structure is compact: the first pipe 1 has no dead space, and integrates three functions of refrigeration cooling, gas-water separation, condensate water storage and discharge.
B) The gas-liquid separation effect is better: the device is vertically arranged, the gas-water separation stroke is greatly prolonged compared with that of the traditional dryer, and the gas-liquid separation effect is better under the action of rotation separation and gravity of compressed gas
C) The pressure difference between the inlet and the outlet of the compressed gas is small: the compressed gas has larger flow sectional area in the flowing process, is not easy to be blocked by dirt, and has small inlet-outlet pressure difference.
D) The material utilization rate is high, and the second pipe 2 not only can divide a plurality of chambers, but also can be used as a refrigerating heat exchange surface.
E) Leakage reduction: and compared with fin type, plate-fin type and plate-type heat exchangers, the argon arc welding type heat exchanger is made of 304 stainless steel materials, has thicker heat exchange materials and fewer welding spots, and greatly reduces the risks of corrosion leakage and welding spot leakage.
F) Reducing ice blockage phenomenon: the gap between the first tube 1 and the second tube 2 is far larger than the gap of 2-3mm of the fin type, plate type or plate fin type heat exchanger, so that the occurrence of ice blockage is greatly reduced.
G) The manufacturing process is simple: all adopt simple welding process, need not special preparation equipment, make simply.
I) Is especially suitable for small-sized cold drier.
Example 2: referring to fig. 2, the difference with respect to embodiment 1 is that: one or more fourth pipes 4 are arranged in the refrigerating cavity 13 to increase the heat exchange area, the upper part of the gas-liquid separation cavity 11 is communicated with the gas inlet 6 through the fourth pipes 4, and the gas inlet 6 is communicated to the bottom of the refrigerating cavity 13 through the fifth pipe 5. The gas enters the bottom of the refrigerating cavity 13 through the fifth pipe 5 and then enters the fourth pipe 4, the gas exchanges heat with a refrigerating source at the outer side of the fourth pipe 4 at the inner side of the fourth pipe 4 and then flows downwards from the upper part of the gas-liquid separation cavity 11 to the upper part of the gas-liquid separation cavity 11, the compressed gas spirally descends under the action of the spiral sheet 17, the compressed gas contacts with the outer surface of the second pipe 2, the low-temperature refrigerating source in the refrigerating cavity 13 refrigerates the temperature and continuously reduces the temperature to generate a large amount of liquid water, meanwhile, the compressed gas generates centrifugal force in the high-speed rotation downward flowing process under the action of the spiral sheet 17, the liquid water and the gas are separated under the double action of the centrifugal force and the gravity, and the liquid water is discharged from the liquid discharge pipe 16 along the lower part of the liquid collecting cavity 12 which enters along the inner wall of the first pipe 1. And the compressed gas of a dry low temperature is discharged from the third pipe 3.
The invention has the following advantages:
a) The structure is compact: the first pipe 1 has no dead space, and integrates three functions of refrigeration cooling, gas-water separation, condensate water storage and discharge.
B) The gas-liquid separation effect is better: the device is vertically arranged, the gas-water separation stroke is greatly prolonged compared with that of the traditional dryer, and the gas-liquid separation effect is better under the action of rotation separation and gravity of compressed gas
C) The pressure difference between the inlet and the outlet of the compressed gas is small: the compressed gas has larger flow sectional area in the flowing process, is not easy to be blocked by dirt, and has small inlet-outlet pressure difference.
D) The material utilization rate is high, and the second pipe 2 not only can divide a plurality of chambers, but also can be used as a refrigerating heat exchange surface.
E) Leakage reduction: and compared with fin type, plate-fin type and plate-type heat exchangers, the argon arc welding type heat exchanger is made of 304 stainless steel materials, has thicker heat exchange materials and fewer welding spots, and greatly reduces the risks of corrosion leakage and welding spot leakage.
F) Reducing ice blockage phenomenon: the gap between the first tube 1 and the second tube 2 and the diameter of the fourth tube 4 are far larger than the gap of 2-3mm of the fin type, plate type or plate fin type heat exchanger, so that the occurrence of ice blockage phenomenon is greatly reduced.
G) The manufacturing process is simple: all adopt simple welding process, need not special preparation equipment, make simply.
Example 3: referring to fig. 3, the difference with respect to embodiment 2 is that: the upper part of the refrigeration cavity 13 is not closed, the bottom of the refrigeration cavity is closed, the fourth pipe 4 is arranged in the refrigeration cavity 13, two ends of the fourth pipe 4 are respectively connected with the refrigeration source outlet 15 and the refrigeration source inlet 14, the refrigeration source with low temperature flows in the fourth pipe 4, and the compressed gas flows outside the fourth pipe 4. In this way, the gas enters the bottom of the refrigeration cavity 13 through the fifth pipe 5, flows upwards in the refrigeration cavity 13, undergoes primary heat exchange with the low-temperature refrigeration source at the inner side of the fourth pipe 4, then lowers the temperature, flows downwards from the upper part of the gas-liquid separation cavity 11, the compressed gas generates centrifugal force in the process of flowing downwards in a high-speed rotation way under the action of the spiral sheet 17, liquid water and the gas are separated under the dual action of the centrifugal force and the gravity, the liquid water enters the lower part of the liquid collecting cavity 12 along the inner wall of the first pipe 1 and is discharged from the liquid discharge pipe 16, and the compressed gas with low temperature is discharged from the third pipe 3.
The invention has the following advantages:
a) The structure is compact: the first pipe 1 has no dead space, and integrates three functions of refrigeration cooling, gas-water separation, condensate water storage and discharge.
B) The gas-liquid separation effect is better: the device is vertically arranged, the gas-water separation stroke is greatly prolonged compared with that of the traditional dryer, and the gas-liquid separation effect is better under the action of rotation separation and gravity of compressed gas
C) The pressure difference between the inlet and the outlet of the compressed gas is small: the compressed gas has larger flow sectional area in the flowing process, is not easy to be blocked by dirt, and has small inlet-outlet pressure difference.
D) Leakage reduction: and compared with fin type, plate-fin type and plate-type heat exchangers, the argon arc welding type heat exchanger is made of 304 stainless steel materials, has thicker heat exchange materials and fewer welding spots, and greatly reduces the risks of corrosion leakage and welding spot leakage.
G) The manufacturing process is simple: all adopt simple welding process, need not special preparation equipment, make simply.
Example 4: referring to fig. 4, the difference with respect to embodiment 2 is that: the one or more third pipes 3 are arranged in the fifth pipe 5, a gas inlet 6 is formed in the upper portion of the fifth pipe 5, a sealing plate 8 is further arranged on the upper portion of the fifth pipe 5, the third pipe 3 penetrates through the sealing plate 8, a gas outlet 7 is formed in the top of the fifth pipe, a plurality of baffle plates 9 are arranged in the fifth pipe 5, and the top of the third pipe 3 is communicated with the gas outlet 7. Compared with the embodiment 2, when the gas enters the fifth pipe 5, the gas exchanges heat with the refrigeration source in the refrigeration cavity 13 once in the fifth pipe 5, and also exchanges heat with the gas exiting from the third pipe 3, the gas in the third pipe 3 exchanges heat and returns to the temperature before being discharged, and flows out from the gas outlet 7, so that the cold amount of the refrigerant can be further utilized, the energy consumption is saved, and the subsequent process is the same as the embodiment 2.
The invention has the following advantages:
a) The structure is compact: the first pipe 1 has no dead space, and integrates four functions of cold-heat exchange, refrigeration cooling, gas-water separation, condensate water storage and discharge.
B) The gas-liquid separation effect is better: the device is vertically arranged, the gas-water separation stroke is greatly prolonged compared with that of the traditional dryer, and the gas-liquid separation effect is better under the action of rotation separation and gravity of compressed gas
C) The pressure difference between the inlet and the outlet of the compressed gas is small: the compressed gas has larger flow sectional area in the flowing process, is not easy to be blocked by dirt, and has small inlet-outlet pressure difference.
D) The second pipe 2 and the fifth pipe 5 can separate a plurality of chambers and can be used as heat exchange surfaces for refrigeration.
E) Leakage reduction: and compared with fin type, plate-fin type and plate-type heat exchangers, the argon arc welding type heat exchanger is made of 304 stainless steel materials, has thicker heat exchange materials and fewer welding spots, and greatly reduces the risks of corrosion leakage and welding spot leakage.
F) Reducing ice blockage phenomenon: the gap between the first tube 1 and the second tube 2 and the diameter of the fourth tube 4 are far larger than the gap of 2-3mm of the fin type, plate type or plate fin type heat exchanger, so that the occurrence of ice blockage phenomenon is greatly reduced.
G) The manufacturing process is simple: all adopt simple welding process, need not special preparation equipment, make simply.
Example 5: with reference to fig. 5, the fourth pipe 4 is omitted from embodiment 2, and it should be noted that the fourth pipe 4 may be added, and the following parts are additionally added: the gas inlet 6 is arranged at the upper part of the fifth pipe 5, a sealing plate 8 is further arranged at the upper part of the fifth pipe 5, the third pipe 3 passes through the sealing plate 8, a gas outlet 7 is formed at the top of the fifth pipe, a sixth pipe 10 is further arranged in the fifth pipe 5, the lower part of the fifth pipe 5 is communicated with the upper part of the gas-liquid separation cavity 11 through the sixth pipe 10, gas enters the fifth pipe 5 from the gas inlet 6 and flows downwards, enters the sixth pipe 10 at the bottom of the fifth pipe 5, flows upwards along the sixth pipe 10 and enters the upper part of the gas-liquid separation cavity 11, flows downwards along the gas-liquid separation cavity 11, and the cooled condensate liquid flows to the liquid collecting cavity 12, flows upwards from the inside of the third pipe 3, flows out of the gas outlet 7, and is discharged from the third pipe 3, and the gas is discharged from the fifth pipe 5 and is heat-exchanged with the fifth pipe 5, so that the energy consumption is saved.
The invention has the following advantages:
a) The structure is compact: the first pipe 1 has no dead space, and integrates four functions of cold-heat exchange, refrigeration cooling, gas-water separation, condensate water storage and discharge.
B) The gas-liquid separation effect is better: the device is vertically arranged, the gas-water separation stroke is greatly prolonged compared with that of the traditional dryer, and the gas-liquid separation effect is better under the action of rotation separation and gravity of compressed gas
C) The pressure difference between the inlet and the outlet of the compressed gas is small: the compressed gas has larger flow sectional area in the flowing process, is not easy to be blocked by dirt, and has small inlet-outlet pressure difference.
D) The second pipe 2 and the fifth pipe 5 can separate a plurality of chambers and can be used as heat exchange surfaces for refrigeration.
E) Leakage reduction: and compared with fin type, plate-fin type and plate-type heat exchangers, the argon arc welding type heat exchanger is made of 304 stainless steel materials, has thicker heat exchange materials and fewer welding spots, and greatly reduces the risks of corrosion leakage and welding spot leakage.
F) Reducing ice blockage phenomenon: the gap between the first tube 1 and the second tube 2 and the diameter of the fourth tube 4 are far larger than the gap of 2-3mm of the fin type, plate type or plate fin type heat exchanger, so that the occurrence of ice blockage phenomenon is greatly reduced.
G) The manufacturing process is simple: all adopt simple welding process, need not special preparation equipment, make simply.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (1)
1. The utility model provides a structure of compressed gas freeze dryer heat transfer dewatering which characterized in that: the gas-liquid separation device comprises a first pipe vertically arranged and a second pipe arranged in the first pipe, wherein the bottom of the second pipe is not in contact with the bottom of the first pipe, a gas-liquid separation cavity is formed between the first pipe and the second pipe, a liquid collecting cavity is formed at the bottom of the gas-liquid separation cavity, a refrigerating cavity is arranged in the second pipe, a refrigerating source outlet and a refrigerating source inlet are respectively arranged in the refrigerating cavity, the upper part of the gas-liquid separation cavity is communicated with a gas inlet, the gas-liquid separation device further comprises one or more third pipes, one ends of the third pipes are communicated with the outside and serve as gas outlets, the other ends of the third pipes are communicated with the upper part of the liquid collecting cavity, gas enters from the gas inlet, is cooled by the refrigerating cavity, condensate is separated out after gas-liquid separation through the gas-liquid separation cavity, condensate flows to the liquid collecting cavity, the gas is discharged from the gas outlet through the third pipe, the bottom of the first pipe is further provided with a liquid drain pipe communicated with the lower part of the liquid collecting cavity, the refrigerating cavity is respectively provided with a refrigerating source outlet and a refrigerating source inlet, one or more fourth pipes are arranged in the refrigerating cavity, the gas inlet is communicated with the inner side of the fourth pipe, the fifth pipe is communicated with the fifth pipe, the compressed gas inlet is arranged at the outer side of the fifth pipe, and the fifth pipe is communicated with the inner side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564224.XA CN109595952A (en) | 2018-12-20 | 2018-12-20 | A kind of structure of compressed air freezing type drier heat exchange |
| CN201811564224X | 2018-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110375563A CN110375563A (en) | 2019-10-25 |
| CN110375563B true CN110375563B (en) | 2024-08-09 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564224.XA Pending CN109595952A (en) | 2018-12-20 | 2018-12-20 | A kind of structure of compressed air freezing type drier heat exchange |
| CN201921270877.7U Withdrawn - After Issue CN211120739U (en) | 2018-12-20 | 2019-08-07 | Structure of heat exchange dewatering of compressed gas freezing dryer |
| CN201910725754.6A Active CN110375563B (en) | 2018-12-20 | 2019-08-07 | Heat exchange and water removal structure of compressed gas freezing dryer |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564224.XA Pending CN109595952A (en) | 2018-12-20 | 2018-12-20 | A kind of structure of compressed air freezing type drier heat exchange |
| CN201921270877.7U Withdrawn - After Issue CN211120739U (en) | 2018-12-20 | 2019-08-07 | Structure of heat exchange dewatering of compressed gas freezing dryer |
Country Status (2)
| Country | Link |
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| CN (3) | CN109595952A (en) |
| WO (1) | WO2020125008A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595952A (en) * | 2018-12-20 | 2019-04-09 | 佛山市天地元净化设备有限公司 | A kind of structure of compressed air freezing type drier heat exchange |
| CN109556433A (en) * | 2018-12-20 | 2019-04-02 | 佛山市天地元净化设备有限公司 | A kind of high efficient heat exchanging structure of compressed air freezing type drier |
| CN110440611B (en) * | 2019-07-25 | 2024-08-02 | 佛山市天地元一净化设备有限公司 | Heat exchange structure of gas dryer |
| CN111375267B (en) * | 2020-04-18 | 2023-05-16 | 青岛科技大学 | Gas-liquid-solid multi-effect separator |
| JP7422033B2 (en) * | 2020-08-06 | 2024-01-25 | 株式会社ジェイテクトサーモシステム | water separator |
| DE102022113558A1 (en) | 2022-05-30 | 2023-11-30 | Hps Home Power Solutions Ag | Device for drying a gas stream |
| CN115532031B (en) * | 2022-10-31 | 2023-10-03 | 盐城天尔机械有限公司 | Compressed air precooler based on air heat exchange |
| CN117085474B (en) * | 2023-09-25 | 2024-03-15 | 珠海蕲艾医疗科技有限公司 | High-efficiency gas-water automatic separation device for oxygen production based on medical molecular sieve |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110375563A (en) | 2019-10-25 |
| WO2020125008A1 (en) | 2020-06-25 |
| CN211120739U (en) | 2020-07-28 |
| CN109595952A (en) | 2019-04-09 |
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