CN218573254U - Novel freezing type compressed air dryer - Google Patents
Novel freezing type compressed air dryer Download PDFInfo
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- CN218573254U CN218573254U CN202222598511.0U CN202222598511U CN218573254U CN 218573254 U CN218573254 U CN 218573254U CN 202222598511 U CN202222598511 U CN 202222598511U CN 218573254 U CN218573254 U CN 218573254U
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Abstract
A novel refrigeration type compressed air dryer comprises a precooler, an evaporative cooler and a steam-water separator; a cooling compressed air inlet I of the precooler is communicated with a cooling compressed air outlet I through a heat exchange pipe I, a cooling compressed air inlet II of the evaporative cooler is communicated with a cooling compressed air outlet II through a heat exchange pipe II, the cooling compressed air outlet I is directly communicated with the cooling compressed air inlet II in a butt joint mode, and the cooling compressed air outlet II of the evaporative cooler is communicated with a separator compressed air inlet of a steam-water separator. The unique and novel airflow channel of the refrigeration type compressed air dryer has the advantages that high-temperature compressed air enters the precooler and flows into the evaporative cooler, the airflow is smooth in the high-efficiency heat exchange tube, the heat transfer is greatly enhanced, the volume of reduced materials is small, the weight is light, the cost is low, the drying effect is good, and the refrigeration type compressed air dryer is energy-saving and environment-friendly.
Description
Technical Field
The utility model relates to an air drying device especially relates to a novel freezing formula compressed air drying machine.
Background
The traditional refrigeration type compressed air dryer generally arranges a precooler, an evaporator and a steam-water separator separately, the precooler, the evaporator and the steam-water separator are connected by pipelines or flanges, the pipelines are long, and the precooler generally adopts a light pipe as a heat exchange element, so that the volume is large, the heat exchange effect is poor, a large amount of heat load of compressed gas is brought to the evaporator, the heat load of the evaporator is greatly increased, the drying and dehumidifying capacity of equipment is greatly reduced, and the energy consumption is greatly increased; the evaporator generally adopts a refrigerant to go inside a heat exchange pipe, compressed air goes outside the heat exchange pipe, and the heat exchange pipe adopts a light pipe, so that the evaporator is large in size, can only be horizontally installed, occupies a large area, has poor heat exchange effect, and has generally higher compressed air pressure dew point; the steam-water separator has simple structure and poor separation effect, only simply reduces the speed, settles and turns for separation, the common separator has smaller size, the gas flow velocity is faster, liquid drops are not separated and are taken away by gas, the steam-liquid separation effect is poor, and the drying purpose can not be achieved.
Disclosure of Invention
The utility model aims at providing a novel refrigeration formula compressed air drying machine communicates the exit of each corresponding compressed air in precooler, evaporative cooler and/or catch water through hot exchange pipe, I11 of cooling compressed air export and the direct butt joint intercommunication of II 21 of cooling compressed air entry, II 28 of cooling compressed air export of evaporative cooler 2 and catch water 3's separator compressed air entry 37 intercommunication. The precooler, the evaporative cooler and/or the steam-water separator are integrated in a cylinder, the structure is simple and compact, meanwhile, high-efficiency heat exchange tubes (inner and outer finned tubes, three-dimensional spiral inner and outer fin high-efficiency heat exchange tubes, outer fins and inserted spiral wound spring high-efficiency tubes and the like) are adopted, the heat transfer is greatly enhanced, the volume of reduced materials is small, the weight is light, the cost is low, the drying effect is good, the pressure dew point temperature is close to 0 ℃, the energy is saved, and the environment is protected.
The utility model adopts the technical proposal that: a novel refrigeration type compressed air dryer comprises a precooler, an evaporative cooler and a steam-water separator; the cooling compressed air inlet I of the precooler is communicated with the cooling compressed air outlet I through a heat exchange pipe I, the cooling compressed air inlet II of the evaporative cooler is communicated with the cooling compressed air outlet II through a heat exchange pipe II, the cooling compressed air outlet I is directly communicated with the cooling compressed air inlet II in a butt joint mode, and the cooling compressed air outlet II of the evaporative cooler is communicated with a separator compressed air inlet of a steam-water separator.
The further technical scheme is as follows: the precooler comprises a precooler cylinder body, and an upper tube plate I and a lower tube plate I are respectively arranged at positions close to two ends in the precooler cylinder body; the peripheries of the upper tube plate I and the lower tube plate I are hermetically fixed on the precooler cylinder body and divide the interior of the precooler cylinder body into an air inlet cavity I, a heat exchange cavity I and an air outlet cavity I; a plurality of heat exchange tubes I are arranged in the heat exchange cavity I, and the heat exchange tubes I are uniformly distributed, and two ends of each heat exchange tube I penetrate through the upper tube plate I and the lower tube plate I to the air inlet cavity I and the air outlet cavity I; the air inlet cavity I is communicated with the cooling compressed air inlet I; the air outlet cavity I is used as a cooling compressed air outlet I;
the evaporative cooler comprises an evaporative cooler barrel, and an upper tube plate II and a lower tube plate II are respectively arranged in the evaporative cooler barrel close to the two ends; the peripheries of the upper tube plate II and the lower tube plate II are hermetically fixed on the evaporative cooler cylinder body and divide the interior of the evaporative cooler cylinder body into an air inlet cavity II, a heat exchange cavity II and an air outlet cavity II; a plurality of heat exchange tubes II are arranged in the heat exchange cavity II, and the heat exchange tubes II are uniformly distributed, and two ends of each heat exchange tube II penetrate through the upper tube plate II and the lower tube plate II to the air inlet cavity II and the air outlet cavity II; the air inlet cavity II is used as a cooling compressed air inlet II, and the air outlet cavity II is used as a cooling compressed air outlet II;
a cooling compressed air outlet I of the precooler is directly communicated with a cooling compressed air inlet II of the evaporative cooler in a butt joint mode; and a cooling compressed air outlet II of the evaporative cooler is directly communicated with a separator compressed air inlet of the steam-water separator in a butt joint mode or is communicated through a pipeline.
The further technical scheme is as follows: the heat exchange tube I and the heat exchange tube II comprise one or more of an inner fin tube, an outer fin tube, a three-dimensional spiral inner fin tube, a three-dimensional spiral outer fin tube, an outer fin tube and an inner inserted spiral wound spring tube.
The further technical scheme is as follows: the air inlet cavity I of the precooler is provided with a cooling compressed air inlet I; a regenerative air outlet and a regenerative air inlet are formed in the heat exchange cavity I of the precooler; the heat return gas outlet is close to the upper tube plate I, and the heat return gas inlet is close to the lower tube plate I;
a heat exchange cavity II of the evaporative cooler is provided with a refrigerant steam exhaust port and a refrigerant liquid supply port; the refrigerant steam exhaust port is close to the upper tube plate II, and the refrigerant liquid supply port is close to the lower tube plate II.
The further technical scheme is as follows: the upper side and the lower side in a heat exchange cavity I of the precooler are provided with a range plate at intervals in a staggered manner, and the heat exchange tubes penetrate and are fixed in the range plate; the evaporative cooler adopts a vertical flooded evaporator.
The further technical scheme is as follows: the steam-water separator comprises a separator cylinder body which is divided into an outer cylinder body and an inner cylinder body; a cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder; the outer ring of the inner cylinder body is provided with a spiral guide plate; the lower end of the steam-water separator is provided with a flow guide strip, and the bottom end of the steam-water separator is provided with a drain outlet and supporting legs; a separated compressed air outlet is formed in the wall of the outer cylinder; the top of the outer cylinder is opened to be used as a compressed air inlet of the separator.
The further technical scheme is as follows: and a back hot air outlet of the precooler is connected with a separated compressed air outlet of the steam-water separator through a compressed air connecting pipe.
The further technical scheme is as follows: a flange is arranged on the compressed air connecting pipe; and flanges are also arranged on the pipelines of the cooling compressed air outlet II of the evaporative cooler and the compressed air inlet of the separator of the steam-water separator.
The further technical scheme is as follows: the novel refrigeration type compressed air dryer also comprises a condensing unit; the refrigerant steam exhaust port of the evaporative cooler is connected with a steam-liquid separator of the condensing unit through a refrigerant air return pipe, and the refrigerant liquid supply port of the evaporative cooler is connected with an expansion valve of the condensing unit through a refrigerant liquid supply pipe.
The further technical scheme is as follows: the precooler barrel and the evaporative cooler barrel are integrally formed; or the precooler cylinder, the evaporative cooler cylinder and the outer cylinder of the steam-water separator are integrally formed.
Since the technical scheme is used, the utility model relates to a novel refrigeration formula compressed air drying machine has following beneficial effect:
(1) The unique and novel airflow channel of the refrigeration type compressed air dryer has the advantages that high-temperature compressed gas enters the precooler → the evaporative cooler, the airflow is smooth in all the high-efficiency heat exchange tubes, then the high-temperature compressed gas directly enters the steam-water separator → the recouperator regenerates heat (simultaneously can cool the high-temperature steam), and water condensed out by the precooler and the evaporative cooler can easily follow the airflow to enter the separator.
(2) The precooler, the evaporative cooler and the steam-water separator are integrated in one cylinder, so that the structure is simple and compact, the volume is small, the weight is light and the cost is low.
(3) The refrigeration type compressed air dryer adopts the high-efficiency heat exchange tubes (the inner and outer finned tubes, the three-dimensional spiral inner and outer finned high-efficiency heat exchange tubes, the outer fins and the inserted spiral wound spring high-efficiency tubes and the like), greatly enhances heat transfer, reduces materials, and has the advantages of small equipment volume, light weight, good effect, low cost and simple structure. Compared with the prior flooded evaporator which adopts a corrugated plate or a plate fin type, the flooded evaporator is influenced by the height of a refrigerant liquid column, the evaporation temperature at the bottom of the cylinder body is higher, and the heat transfer temperature difference can be reduced, so that the prior flooded evaporator can be only horizontally installed, can only lengthen the transverse volume in order to improve the heat transfer coefficient, and has large volume and more occupied space. The flooded evaporator of the refrigeration type compressed air dryer adopts the high-efficiency heat exchange tube which is very short, so that the influence of a hydrostatic column on the evaporation pressure is very small, the evaporation temperature is close to the outlet temperature of compressed air, the energy conservation is achieved, the vertical installation is realized, and the occupied area is reduced.
(4) The refrigeration type compressed air dryer fully utilizes the cold quantity of the compressed air after separation, and simultaneously uses the high-efficiency heat exchange tube, thereby reducing the heat transfer temperature difference and achieving the purpose of energy conservation.
(5) The steam-water separator and the evaporative cooler are connected into a whole, so that the resistance loss can be reduced, the temperature rise of compressed air can be reduced, secondary evaporation of water can be possibly caused, and the condensed water can be separated thoroughly.
(6) The steam-water separator is directly arranged below the evaporative cooler, the temperature of the compressed air can be well close to the evaporation temperature, the moisture of the separated compressed air is close to a theoretical value, and the steam-water separation is thorough by adopting separation methods such as cyclone, centrifugation, turning, speed reduction and the like.
Therefore, the refrigeration type compressed air dryer has stable working condition and good effect, and can lead the pressure dew point temperature to be close to 0 ℃ and reach the limit of the refrigeration type compressed air dryer.
The technical features of the novel refrigeration type compressed air dryer of the present invention will be further described with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view showing the internal structure of a novel refrigerated compressed air dryer according to embodiment 1;
FIG. 2 is a schematic view showing the internal structure of a novel refrigerated compressed air dryer according to embodiment 2;
FIG. 3 is a schematic view showing the flow of air in the novel refrigerated compressed air dryer of example 1;
fig. 4 is an enlarged view of a in fig. 3.
In the figure:
1-a precooler; 11-cooling compressed air outlet I; 12-lower tube plate I; 13-inlet of regenerative gas; 14-heat exchange tube I; 15-split plates; 16-a return gas outlet; 17-upper tube plate I; 18-a precooler cylinder; 19-sealing a precooler end socket; 110-cooling compressed air inlet I;
2-an evaporative cooler; 21-cooling compressed air inlet II; 22-upper tube plate II; 23-refrigerant vapor exhaust; 24-heat exchange tubes II; 25-evaporative cooler cartridges; 26-lower tube plate II; 27-a refrigerant supply port; 28-a cooled compressed air outlet II;
3-a steam-water separator; 31-steam-water separator end enclosure; 32-guide strips; 33-outer cylinder; 34-an inner cylinder body; 35-a flow guide plate; 36-a separate compressed air outlet; 37-separator compressed air inlet; 38-a sewage draining outlet; 39-supporting feet;
4-a condensing unit; 41-an expansion valve; 42-a condenser; 43-vapor-liquid separator; 44-a compressor;
5-compressed air connecting pipe; 6-refrigerant return pipe; 7-refrigerant feed pipe.
Detailed Description
A novel refrigeration type compressed air dryer comprises a precooler 1, an evaporative cooler 2 and a steam-water separator 3; the cooling compressed air inlet I110 of the precooler 1 is communicated with the cooling compressed air outlet I11 through a heat exchange pipe I14, the cooling compressed air inlet II 21 of the evaporative cooler 2 is communicated with the cooling compressed air outlet II 28 through a heat exchange pipe II 25, the cooling compressed air outlet I11 is directly communicated with the cooling compressed air inlet II 21 in a butt joint mode, and the cooling compressed air outlet II 28 of the evaporative cooler 2 is communicated with the separator compressed air inlet 37 of the steam-water separator 3.
The following two different embodiments are exemplified according to the structure and installation of the refrigerating type compressed air dryer:
example 1:
as shown in fig. 1, a novel refrigeration type compressed air dryer comprises a precooler 1, an evaporative cooler 2 and a steam-water separator 3;
the precooler 1 comprises a precooler cylinder 18, a precooler end socket 19 is arranged at the top of the precooler cylinder 18, and a cooling compressed air inlet I110 is formed in the top of the precooler end socket 19. An upper tube plate I17 and a lower tube plate I12 are respectively arranged in the precooler cylinder 18 and close to the two ends; the peripheries of the upper tube plate I17 and the lower tube plate I12 are hermetically fixed on the precooler cylinder 18, and the interior of the precooler cylinder 18 is divided into an air inlet cavity I, a heat exchange cavity I and an air outlet cavity I; a plurality of heat exchange tubes I14 are arranged in the heat exchange cavity I, the heat exchange tubes I14 are uniformly distributed, and two ends of each heat exchange tube I14 penetrate through the upper tube plate I17 and the lower tube plate I12 to the air inlet cavity I and the air outlet cavity I; the air inlet cavity I is communicated with a cooling compressed air inlet I110; and the air outlet cavity I is used as a cooling compressed air outlet I11. The heat exchange cavity I of the precooler 1 is provided with a backheating gas outlet 16 and a backheating gas inlet 13; the return air outlet 16 is close to the upper tube plate I17, and the return air inlet 13 is close to the lower tube plate I12. The upper side and the lower side of the heat exchange cavity I of the precooler 1 are provided with the range plates 15 at intervals in a staggered manner, and the heat exchange tubes are fixed in the range plates 15 in a penetrating manner.
The evaporative cooler 2 comprises an evaporative cooler cylinder 25, and an upper tube plate II 22 and a lower tube plate II 26 are respectively arranged in the evaporative cooler cylinder 25 and close to the two ends; the peripheries of the upper tube plate II 22 and the lower tube plate II 26 are hermetically fixed on the evaporative cooler cylinder 25, and the interior of the evaporative cooler cylinder 25 is divided into an air inlet cavity II, a heat exchange cavity II and an air outlet cavity II; a plurality of heat exchange tubes II 25 are arranged in the heat exchange cavity II, the heat exchange tubes II 25 are uniformly distributed, and two ends of the heat exchange tubes II 25 penetrate through the upper tube plate II 22 and the lower tube plate II 26 to the air inlet cavity II and the air outlet cavity II; the air inlet cavity II is used as a cooling compressed air inlet II 21, and the air outlet cavity II is used as a cooling compressed air outlet II 28. The heat exchange cavity II of the evaporative cooler 2 is provided with a refrigerant steam exhaust port 23 and a refrigerant liquid supply port 27; the refrigerant steam exhaust port 23 is close to the upper tube plate II 22, and the refrigerant liquid supply port 28 is close to the lower tube plate II 26.
The steam-water separator 3 comprises a separator cylinder body which is divided into an outer cylinder body 33 and an inner cylinder body 34; a cavity is formed between the inner wall of the outer cylinder 33 and the outer wall of the inner cylinder 34; a spiral guide plate 35 is arranged on the outer ring of the inner cylinder 34; the lower end of the steam-water separator 3 is provided with a flow guide strip 32, the bottom end of the steam-water separator 3 is provided with a steam-water separator end enclosure 31, and the steam-water separator end enclosure 31 is provided with a drain outlet 38 and a supporting leg 39; a separated compressed air outlet 36 is formed in the wall of the outer cylinder body 33; the top of the outer cylinder 33 is open as a separator compressed air inlet 37. The steam-water separator is directly arranged below the evaporative cooler.
A cooling compressed air outlet I11 of the precooler 1 is directly communicated with a cooling compressed air inlet II 21 of the evaporative cooler 2 in a butt joint way; and a cooling compressed air outlet II 28 of the evaporative cooler 2 is directly communicated with a separator compressed air inlet 37 of the steam-water separator 3 in a butt joint mode. The return air outlet 16 of the precooler 1 is connected with the separated compressed air outlet 36 of the steam-water separator 3 through the compressed air connecting pipe 5.
In the embodiment, the precooler cylinder 18, the evaporative cooler cylinder 25 and the outer cylinder 33 of the steam-water separator 3 are integrally formed, compressed air directly reaches the steam-water separator 3 through the heat exchange tubes I14 and II 25, the compressed air flows smoothly, the resistance is small, and the pipeline is simple; the precooler, the evaporative cooler and the steam-water separator are integrated in one cylinder, so that a connecting flange is omitted, upper and lower tube plates of the precooler and the evaporative cooler can be designed to be very thin, and the weight of equipment can be greatly reduced. The heat exchange tube I14 of the precooler adopts a three-dimensional spiral inner and outer fin high-efficiency heat exchange tube (or an outer fin and an inner inserted spiral wound spring high-efficiency tube), so that the heat exchange efficiency of the precooler is greatly improved, and the volume and the weight of equipment are greatly reduced; the heat exchange tube II 25 of the evaporative cooler adopts a three-dimensional spiral inner fin high-efficiency heat exchange tube (an internally inserted spiral wound spring high-efficiency tube can also be adopted), so that the air side heat exchange efficiency of the evaporative cooler is greatly improved, and the volume and the weight of equipment are greatly reduced. Simultaneously evaporative cooler 2 adopts vertical flooded evaporator, owing to adopted high-efficient heat exchange tube, the heat exchange tube is shorter for static pressure is very little to evaporating temperature's influence, but vertical installation reduces equipment area. The steam-water separator is directly arranged below the evaporative cooler, the temperature of the compressed air can be well close to the evaporation temperature, the moisture of the separated compressed air is close to a theoretical value, and the steam-water separation is thorough by adopting separation methods such as cyclone, centrifugation, turning, speed reduction and the like.
Example 2:
the basic structure of a novel refrigeration type compressed air dryer of the embodiment is the same as that of the embodiment 1, and as shown in fig. 2, the differences from the embodiment 1 are as follows: the precooler 1 and the evaporative cooler 2 are connected into a whole, a horizontal structure is adopted, and the steam-water separator 3 is directly connected with the precooler 1 and the evaporative cooler 2 by flanges for convenient maintenance. The upper end and the lower end of the steam-water separator 3 are both provided with seal heads, and the upper seal head of the steam-water separator 3 is provided with a separator compressed air inlet 37. A cooling compressed air outlet II 28 of the evaporative cooler 2 is communicated with a separator compressed air inlet 37 of the steam-water separator 3 through a pipeline, and flanges are mounted on the pipeline; the compressed air connecting pipe 5 is also provided with a flange.
The precooler and the evaporative cooler in the embodiment are connected into a whole, a horizontal structure is adopted, the structure is compact, compressed air reaches the steam-water separator 3 through the heat exchange tube I14 and the heat exchange tube II 25, the flow of the compressed air is smooth, the resistance is small, and the pipeline is simple; the precooler and the evaporative cooler are omitted, connecting flanges are omitted, upper tube plates and lower tube plates of the precooler and the evaporative cooler can be designed to be very thin, and the weight of equipment can be greatly reduced; the heat exchange tube I14 of the precooler adopts a three-dimensional spiral inner and outer fin high-efficiency heat exchange tube (or an outer fin and an inner inserted spiral wound spring high-efficiency tube), so that the heat exchange efficiency of the precooler is greatly improved, and the volume and the weight of equipment are greatly reduced; the heat exchange tube II 25 of the evaporative cooler adopts a three-dimensional spiral inner fin efficient heat exchange tube (or an internally inserted spiral wound spring efficient tube), so that the air side heat exchange efficiency of the evaporative cooler is greatly improved, and the volume and the weight of equipment are greatly reduced; meanwhile, a horizontal evaporator is adopted; furthermore, the steam-water separator is directly connected with the precooler and the evaporative cooler by flanges, the temperature of the compressed air can be well close to the evaporation temperature, the moisture of the separated compressed air is close to a theoretical value, and the separation methods of cyclone, centrifugation, turning, speed reduction and the like are adopted, so that the steam-water separation is thorough. And the overhaul is convenient.
As a variation of the two embodiments, the two new refrigeration-type compressed air dryers further include a condenser unit 4; the refrigerant steam exhaust port 23 of the evaporative cooler 2 is connected with the vapour-liquid separator 43 of the condensing unit 4 through the refrigerant air return pipe 6, and the refrigerant liquid supply port 27 of the evaporative cooler 2 is connected with the expansion valve 41 of the condensing unit 4 through a refrigerant liquid supply pipe.
The high-temperature high-pressure refrigerant from the condensing unit 4 is decompressed and expanded by an expansion valve to become a low-pressure low-temperature liquid refrigerant, the low-pressure low-temperature liquid refrigerant enters the evaporation cooler 2 (namely the heat exchange cavity II 25) through the refrigerant liquid supply pipe 7 to be evaporated, the low-temperature vapor refrigerant is changed after evaporation heat exchange, the low-temperature vapor refrigerant enters the vapor-liquid separator 43 of the condensing unit 4 through the refrigerant gas return pipe 6, the vapor refrigerant possibly with part of liquid drops is separated, the vapor refrigerant is extracted by the compressor 44 of the condensing unit 4, the low-pressure low-temperature refrigerant is compressed by the compressor 44 to become high-temperature high-pressure vapor, the high-temperature high-pressure vapor enters the condenser 42 of the condensing unit 4 to be condensed into a condensed liquid refrigerant under high pressure and saturation pressure, and the condensed liquid refrigerant is throttled and expanded into the low-temperature low-pressure refrigerant through the expansion valve 41, and the cycle is repeated. The condensing unit of this embodiment is the existing market product.
The gas flow of the novel refrigeration type compressed air dryer is shown in figure 3: the structure of example 1 is taken as an example to explain:
the compressed air (namely, hot compressed air at the inlet of a precooler of a cold dryer) (generally less than 50 ℃ and saturated gas at the moment) which is cooled (air cooled or water cooled) from a compressor firstly enters the precooler and flows through a heat exchange pipe I14 for precooling, and the temperature of the compressed air (namely, compressed air from the precooler) after precooling is reduced to about 30 ℃ while water is condensed; compressed air (namely compressed air out of the precooler) directly enters the evaporative cooler after being discharged out of the precooler, flows through the heat exchange tube II 25 to be further cooled and dried, and the temperature of the compressed air (namely the compressed air after being cooled and dried) is reduced to be close to 0 ℃, and water is condensed out at the same time; compressed air (namely compressed air after being cooled and dried) directly enters a steam-water separator after exiting from an evaporative cooler to be subjected to steam-water separation, water condensed from the precooler and the evaporative cooler is separated from the compressed air (namely the compressed air after being cooled and dried), so that the compressed air is dried, and meanwhile, the compressed air after being frozen and dried (namely the compressed air after being cooled and dried) is utilized to pre-cool the compressed air (namely hot compressed air) with higher temperature entering the precooler, so that the cold quantity is recycled, and the purpose of saving energy is achieved; the precooler compressed air is then discharged.
According to the technical scheme, the precooler, the evaporative cooler and the steam-water separator are integrated in a cylinder or the precooler and the evaporative cooler are integrated in the cylinder, and efficient heat exchange tubes (inner finned tubes, inner and outer finned tubes and the like) are adopted, so that heat transfer is greatly enhanced, materials are reduced, and the equipment is small in size, light in weight, good in effect, low in cost and simple in structure.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize. The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited to the description of the above embodiments, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of ways without departing from the spirit of the present invention, and all of them should be considered as belonging to the scope of the present invention as defined by the appended claims.
Claims (10)
1. A novel refrigeration type compressed air dryer comprises a precooler, an evaporative cooler and a steam-water separator; the method is characterized in that: the cooling compressed air inlet I of the precooler is communicated with the cooling compressed air outlet I through a heat exchange pipe I, the cooling compressed air inlet II of the evaporative cooler is communicated with the cooling compressed air outlet II through a heat exchange pipe II, the cooling compressed air outlet I is directly communicated with the cooling compressed air inlet II in a butt joint mode, and the cooling compressed air outlet II of the evaporative cooler is communicated with a separator compressed air inlet of a steam-water separator.
2. The new refrigerated compressed air dryer of claim 1, wherein: the precooler comprises a precooler cylinder body, and an upper tube plate I and a lower tube plate I are respectively arranged at positions close to two ends in the precooler cylinder body; the peripheries of the upper tube plate I and the lower tube plate I are hermetically fixed on the precooler cylinder body and divide the interior of the precooler cylinder body into an air inlet cavity I, a heat exchange cavity I and an air outlet cavity I; a plurality of heat exchange tubes I are arranged in the heat exchange cavity I, and the heat exchange tubes I are uniformly distributed, and two ends of each heat exchange tube I penetrate through the upper tube plate I and the lower tube plate I to the air inlet cavity I and the air outlet cavity I; the air inlet cavity I is communicated with the cooling compressed air inlet I; the air outlet cavity I is used as a cooling compressed air outlet I;
the evaporative cooler comprises an evaporative cooler cylinder, and an upper tube plate II and a lower tube plate II are respectively arranged at positions close to two ends in the evaporative cooler cylinder; the peripheries of the upper tube plate II and the lower tube plate II are hermetically fixed on the evaporative cooler cylinder body and divide the interior of the evaporative cooler cylinder body into an air inlet cavity II, a heat exchange cavity II and an air outlet cavity II; a plurality of heat exchange tubes II are arranged in the heat exchange cavity II, and the heat exchange tubes II are uniformly distributed, and two ends of each heat exchange tube II penetrate through the upper tube plate II and the lower tube plate II to the air inlet cavity II and the air outlet cavity II; the air inlet cavity II is used as a cooling compressed air inlet II, and the air outlet cavity II is used as a cooling compressed air outlet II;
a cooling compressed air outlet I of the precooler is directly communicated with a cooling compressed air inlet II of the evaporative cooler in a butt joint mode; and a cooling compressed air outlet II of the evaporative cooler is directly communicated with a separator compressed air inlet of the steam-water separator in a butt joint mode or is communicated through a pipeline.
3. The new refrigerated compressed air dryer of claim 2, wherein: the heat exchange tube I and the heat exchange tube II comprise one or more of an inner fin tube, an outer fin tube, a three-dimensional spiral inner fin tube, a three-dimensional spiral outer fin tube, an outer fin tube and an inner inserted spiral wound spring tube.
4. The new refrigerated compressed air dryer of claim 3, wherein:
a cooling compressed air inlet I is formed in an air inlet cavity I of the precooler; a heat exchange cavity I of the precooler is provided with a backheating gas outlet and a backheating gas inlet; the heat return gas outlet is close to the upper tube plate I, and the heat return gas inlet is close to the lower tube plate I;
a heat exchange cavity II of the evaporative cooler is provided with a refrigerant steam exhaust port and a refrigerant liquid supply port; the refrigerant steam exhaust port is close to the upper tube plate II, and the refrigerant liquid supply port is close to the lower tube plate II.
5. The new refrigerated compressed air dryer of claim 4, wherein: the upper side and the lower side of the heat exchange cavity I of the precooler are provided with a range plate at intervals in a staggered manner, and the heat exchange tubes penetrate and are fixed in the range plate; the evaporative cooler adopts a vertical flooded evaporator.
6. The new refrigerated compressed air dryer of claim 5, wherein: the steam-water separator comprises a separator cylinder body which is divided into an outer cylinder body and an inner cylinder body; a cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder; the outer ring of the inner cylinder body is provided with a spiral guide plate; the lower end of the steam-water separator is provided with a flow guide strip, and the bottom end of the steam-water separator is provided with a drain outlet and supporting legs; a separated compressed air outlet is formed in the wall of the outer cylinder; the top of the outer cylinder is opened to be used as a compressed air inlet of the separator.
7. The new refrigerated compressed air dryer of claim 6, wherein: and a return air outlet of the precooler is connected with a separated compressed air outlet of the steam-water separator through a compressed air connecting pipe.
8. The new refrigerated compressed air dryer of claim 7, wherein: a flange is arranged on the compressed air connecting pipe; and flanges are also arranged on the pipelines of the cooling compressed air outlet II of the evaporative cooler and the compressed air inlet of the separator of the steam-water separator.
9. The new refrigerated compressed air dryer of claim 8, wherein: the novel refrigeration type compressed air dryer also comprises a condensing unit; the refrigerant steam exhaust port of the evaporative cooler is connected with a steam-liquid separator of the condensing unit through a refrigerant air return pipe, and the refrigerant liquid supply port of the evaporative cooler is connected with an expansion valve of the condensing unit through a refrigerant liquid supply pipe.
10. The new refrigerated compressed air dryer of claim 9, wherein: the precooler barrel and the evaporative cooler barrel are integrally formed; or the precooler cylinder, the evaporative cooler cylinder and the outer cylinder of the steam-water separator are integrally formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222598511.0U CN218573254U (en) | 2022-09-29 | 2022-09-29 | Novel freezing type compressed air dryer |
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| CN202222598511.0U CN218573254U (en) | 2022-09-29 | 2022-09-29 | Novel freezing type compressed air dryer |
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