CN114623694B - Heat exchanger capable of improving heat exchange efficiency and cold energy utilization rate - Google Patents
Heat exchanger capable of improving heat exchange efficiency and cold energy utilization rate Download PDFInfo
- Publication number
- CN114623694B CN114623694B CN202210407960.4A CN202210407960A CN114623694B CN 114623694 B CN114623694 B CN 114623694B CN 202210407960 A CN202210407960 A CN 202210407960A CN 114623694 B CN114623694 B CN 114623694B
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- heat exchange
- cavity
- gas
- baffle plate
- precooling
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000000926 separation method Methods 0.000 claims abstract description 43
- 239000003507 refrigerant Substances 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 claims description 51
- 230000005494 condensation Effects 0.000 claims description 51
- 238000001816 cooling Methods 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000003303 reheating Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
-
- 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
Abstract
The invention discloses a heat exchanger for improving heat exchange efficiency and cold energy utilization rate, which comprises a machine shell, wherein a precooling cavity, a heat exchange condensing cavity, a gas-water separation cavity and a heat exchange jacket sleeved outside the precooling cavity are arranged in the machine shell, the heat exchange condensing cavity is arranged below the precooling cavity, the gas-water separation cavity is arranged on the right side of the heat exchange condensing cavity, a plurality of first baffle plates which are sequentially arranged in the left-right horizontal direction and extend in the vertical direction are arranged in the precooling cavity, a plurality of second baffle plates which are sequentially arranged in the left-right horizontal direction and extend in the vertical direction are arranged in the heat exchange condensing cavity, a refrigerant evaporation coil which is arranged in the horizontal direction is arranged in the heat exchange condensing cavity, and a heat exchange fin plate is sleeved on the refrigerant evaporation coil. The invention improves the heat exchange efficiency, reduces the occupied volume of equipment and improves the gas drying degree.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a heat exchanger capable of improving heat exchange efficiency and cold energy utilization rate.
Background
The air contains a large amount of moisture, and particularly the relative humidity of the air becomes larger after the air is compressed, and if no measures are taken, the moisture can rust and damage gas consuming equipment. At present, the devices of the drier on the market are of split structures, the devices are mutually connected through pipelines, the drier with the structure is easy to cause the problem of pipeline corrosion, the pipeline is easy to be blocked by rust slag generated by the corrosion, and the drier is large in volume, heavy in weight and large in occupied space due to the adoption of the pipeline connection, so that a plurality of inconveniences are brought to a user.
The cold dryer is a short term of a freeze dryer, and is widely applied in the field of gas drying, and the principle is that water in gas is frozen below a dew point through heat exchange, so that the water is separated from the gas. The temperature of the traditional cold dryer after the gas is frozen and dried is very low, generally between 2 and 10 ℃, and because the temperature is very low, the frozen gas can be quickly intersected with the external normal temperature atmosphere (10 to 35 ℃) when a user uses the cold dryer, and a large amount of water mist is generated due to the phenomenon that the cold gas is heated, so that the pollution is caused to the processed product, the precision is insufficient, and certain damage is caused to expensive processing equipment. Meanwhile, the heat exchange efficiency of the heat exchange component is limited, so that the occupied space of the equipment is large, and the energy consumption is high.
Disclosure of Invention
The embodiment of the invention provides a heat exchanger capable of improving heat exchange efficiency and cold energy utilization rate, which is used for improving heat exchange efficiency, reducing equipment occupied volume and improving the dryness of treated gas.
In order to achieve the above object, the embodiment of the invention provides a heat exchanger for improving heat exchange efficiency and cold utilization rate, comprising a casing, wherein a pre-cooling cavity, a heat exchange condensing cavity, a gas-water separation cavity and a heat exchange jacket sleeved outside the pre-cooling cavity are arranged in the casing, the heat exchange condensing cavity is arranged below the pre-cooling cavity, the gas-water separation cavity is arranged on the right side of the heat exchange condensing cavity, a plurality of first baffle plates which are sequentially arranged along the horizontal direction and extend along the vertical direction are arranged in the pre-cooling cavity, the front edge and the rear edge of each first baffle plate are in sealing connection with the front and the rear inner walls of the pre-cooling cavity, the first baffle plates are a plurality of first upper baffle plates arranged on the top surface of the pre-cooling cavity and a plurality of first lower baffle plates arranged on the bottom surface of the pre-cooling cavity, the rightmost side of the upper part of the casing is provided with a first air inlet pipe communicated with the pre-cooling cavity, the leftmost side of the bottom surface of the pre-cooling cavity is provided with a first baffle pipe communicated with the heat exchange condensing cavity,
the heat exchange condensing cavity is internally provided with a plurality of second baffle plates which are sequentially arranged along the left-right horizontal direction and extend along the vertical direction, the front edge and the rear edge of the second baffle plates are respectively in sealing connection with the front inner wall and the rear inner wall of the heat exchange condensing cavity, the second baffle plates are a plurality of second upper baffle plates arranged on the top surface of the heat exchange condensing cavity and a plurality of second lower baffle plates arranged on the bottom surface of the heat exchange condensing cavity, the bottoms of the right side wall of the heat exchange condensing cavity are alternately arranged, the bottoms of the right side wall of the heat exchange condensing cavity are provided with a second vent pipe communicated with the gas-water separation cavity, the heat exchange condensing cavity is internally provided with a refrigerant evaporating coil arranged along the horizontal direction, the refrigerant evaporating coil is sleeved with heat exchange fin plates, each heat exchange fin plate comprises a base plate arranged along the vertical direction, the base plate is parallel to the front inner wall and the rear inner wall of the heat exchange condensing cavity, the front surface and the rear surface of the base plate are respectively provided with corrugated plates arranged along the vertical direction in a staggered way, the adjacent corrugated plate peaks are arranged in the horizontal direction in a staggered way, the heat exchange condensing cavity is internally provided with a plurality of fin plates arranged along the front-rear direction, one fin plate is adhered to the fin plate is sequentially, the fin plates are adhered to the fin plates of the heat exchange fin plates are arranged along the horizontal direction and extend along the horizontal direction,
the gas-water separation cavity is internally provided with a plurality of water collecting components which are sequentially arranged along the vertical direction, the water collecting components comprise a frustum sleeve and a conical top, the shape of the bottom edge of the frustum sleeve is the same as the section shape of the gas-water separation cavity, the bottom edge of the frustum sleeve is in sealing connection with the inner wall of the gas-water separation cavity at the corresponding side, the conical top is arranged at the upper part of the frustum sleeve through a support column, the top of the gas-water separation cavity is provided with a third gas-communication pipe which is communicated with the inner cavity of the heat exchange jacket,
the inner cavity of the heat exchange jacket is provided with a spiral air passage, and the top of the heat exchange jacket is provided with an exhaust pipe.
The first upper baffle plate and the first lower baffle plate are arranged at intervals at the bottoms of the first upper baffle plate and the bottom surface of the pre-cooling cavity, an air flow channel is formed between the bottom of the first upper baffle plate and the bottom surface of the pre-cooling cavity, and an air flow channel is formed between the top of the first lower baffle plate and the top surface of the pre-cooling cavity.
The first baffle plate positioned at the rightmost side is a first upper baffle plate, the first upper baffle plate and the right side wall of the precooling cavity form a precooling cavity air inlet channel, the first air inlet pipe is communicated with the precooling cavity air inlet channel, the first baffle plate positioned at the leftmost side is a first lower baffle plate, the first lower baffle plate and the left side wall of the precooling cavity form a precooling cavity air outlet channel, and the second air inlet pipe is communicated with the precooling cavity air outlet channel.
An air flow channel is formed between the bottom of the second upper baffle plate and the bottom surface of the heat exchange condensation cavity, and an air flow channel is formed between the top of the second lower baffle plate and the top surface of the heat exchange condensation cavity.
The second baffle plate positioned at the leftmost side is a second upper baffle plate, the second upper baffle plate and the left side wall of the heat exchange condensation cavity form a heat exchange condensation cavity air inlet channel, the second air inlet pipe is communicated with the heat exchange condensation cavity air inlet channel, the second baffle plate positioned at the rightmost side is a second lower baffle plate, the second lower baffle plate and the right side wall of the precooling cavity form a heat exchange condensation cavity air outlet channel, and the second air vent pipe is communicated with the precooling cavity air outlet channel.
Preferably, a first drain pipe is arranged on the bottom surface of the gas-water separation cavity.
Preferably, a second drain pipe is arranged on the bottom surface of the heat exchange condensation cavity.
Preferably, a third drain pipe is arranged on the side wall of the gas-water separation cavity and is arranged on the outer side of the frustum sleeve.
Preferably, the first air inlet pipe is connected with a gas filter.
The working process of the heat exchanger for improving the heat exchange efficiency and the cold energy utilization rate comprises the following steps of:
s1, gas to be dried enters a pre-cooling cavity from a first air inlet pipe through a gas filter, is guided by a first deflector to flow in the pre-cooling cavity in a baffling way, and simultaneously, the cooled and dried gas flows upwards in a heat exchange jacket under the guidance of a spiral air passage, and the baffled gas in the pre-cooling cavity is subjected to pre-cooling heat exchange by the gas in the heat exchange jacket;
s2, the precooled air flow enters a heat exchange condensation cavity through a first vent pipe, is guided to flow in the heat exchange condensation cavity through a second deflector, flows sequentially pass through heat exchange fin plate row sheets between the second deflector, achieves multiple condensation heat exchange, and water in the air flow is condensed to form water drops to the bottom of the heat exchange condensation cavity and is discharged through a second drain pipe;
s3, enabling the air flow subjected to condensation heat exchange to enter a gas-water separation cavity through a second vent pipe, enabling the air flow to flow upwards from the bottom of the gas-water separation cavity, enabling the air flow to sequentially flow through each water collecting assembly, collecting moisture in the air flow through a frustum sleeve and a conical top of the water collecting assembly, enabling collected water drops to fall into the bottom of the gas-water separation cavity and be discharged through a first drain pipe or to fall into the periphery of the frustum sleeve of the water collecting assembly and be discharged through a third drain pipe;
s4, enabling the air flow flowing through the air-water separation cavity to enter the heat exchange jacket from the third air pipe, and exhausting the air flow through the exhaust pipe after reheating with the air in the pre-cooling cavity in the flowing process of the spiral air passage to obtain dry air after cold drying reheating.
One or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
the invention pre-cools the gas to be cooled and dried, which can not only raise the temperature of the gas to be cooled and dried, but also raise the utilization efficiency of the cold energy of the refrigerant. The heat exchange efficiency is improved through the arrangement of the first baffle and the spiral air passage, and the precooling effect is improved.
Through set up second baffling board and heat transfer fin row piece in the heat transfer condensation chamber, realize the multitime condensation to single air current, can effectively reduce the volume of equipment when guaranteeing the condensation effect. The corrugated plates staggered on the surfaces of the heat exchange fin plates can realize uniform gas distribution of the air flow, and heat exchange efficiency is further improved.
The water collection assemblies which are sequentially arranged along the vertical direction are arranged in the gas-water separation cavity, so that the water removal effect is further improved, and the dryness of the cold dry air flow is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a heat exchange fin array;
FIG. 3 is a schematic view of a heat exchange fin plate in front view;
fig. 4 is a schematic view of a partial top view of a heat exchange fin plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a heat exchanger for improving heat exchange efficiency and cold utilization rate, as shown in fig. 1, the heat exchanger comprises a casing 1, wherein a pre-cooling cavity 2, a heat exchange condensation cavity 3, a gas-water separation cavity 4 and a heat exchange jacket 5 which are all closed cavities are arranged in the casing 1, the heat exchange condensation cavity 3 is arranged below the pre-cooling cavity 2, the gas-water separation cavity 4 is arranged on the right side of the heat exchange condensation cavity 3, a plurality of first baffle plates 6 which are sequentially arranged along the left-right horizontal direction and extend along the vertical direction are arranged in the pre-cooling cavity 2, the front edge and the rear edge of each first baffle plate 6 are in sealing connection with the front wall and the rear wall of the pre-cooling cavity 2, each first baffle plate 6 is a plurality of first upper baffle plates arranged on the top surface of the pre-cooling cavity 2 and a plurality of first lower baffle plates arranged on the bottom surface of the pre-cooling cavity 2, the rightmost side of the upper part of the casing 1 is provided with a first air inlet pipe 7 communicated with the pre-cooling cavity 2, the leftmost side of the bottom surface of the pre-cooling cavity 2 is provided with a first vent pipe 8 communicated with the heat exchange condensation cavity 3,
a plurality of second baffle plates 9 which are sequentially arranged along the left-right horizontal direction and extend along the vertical direction are arranged in the heat exchange condensation cavity 3, the front edge and the rear edge of the second baffle plates 9 are respectively connected with the front inner wall and the rear inner wall of the heat exchange condensation cavity 3 in a sealing way, the second baffle plates 9 are a plurality of second upper baffle plates arranged on the top surface of the heat exchange condensation cavity 3 and a plurality of second lower baffle plates arranged on the bottom surface of the heat exchange condensation cavity 3, the bottoms of the second upper baffle plates and the second lower baffle plates are arranged at intervals, a second vent pipe 14 which is communicated with the gas-water separation cavity 4 is arranged at the bottom of the right side wall of the heat exchange condensation cavity 3, a refrigerant evaporation coil 10 which is arranged along the horizontal direction is arranged in the heat exchange condensation cavity 3, as shown in fig. 2 to 4, the refrigerant evaporating coil 10 is sleeved with heat exchanging fin plates 110, the heat exchanging fin plates 110 comprise a base plate 111 arranged along the vertical direction, the base plate 111 is parallel to the front and rear inner walls of the heat exchanging condensation cavity 3, corrugated plates 112 arranged along the vertical direction are arranged on the front surface and the rear surface of the base plate 111, wave crests of the adjacent corrugated plates 112 are arranged along the horizontal direction in a staggered manner, a plurality of heat exchanging fin plates 110 are arranged in the heat exchanging condensation cavity 3 in a sequentially attached manner along the front and rear directions, the attached heat exchanging fin plates 110 form a heat exchanging fin plate row sheet 11 extending along the horizontal direction, the heat exchanging fin plate row sheet 11 divides the heat exchanging condensation cavity 3 into an upper cavity and a lower cavity,
the gas-water separation cavity 4 is internally provided with a plurality of water collecting components 12 which are sequentially arranged along the vertical direction, the water collecting components 12 comprise a frustum sleeve 121 and a conical top 122, the shape of the bottom edge of the frustum sleeve 121 is the same as the section shape of the gas-water separation cavity 4, the bottom edge of the frustum sleeve 121 is in sealing connection with the inner wall of the gas-water separation cavity 4 at the corresponding side, the conical top 122 is arranged at the upper part of the frustum sleeve 121 through a support column, the top of the gas-water separation cavity 4 is provided with a third gas-communication pipe which is communicated with the inner cavity of the heat exchange jacket 5,
the inner cavity of the heat exchange jacket 5 is provided with a spiral air passage 51, and the top of the heat exchange jacket 5 is provided with an exhaust pipe 13.
The first upper baffle plate and the first lower baffle plate are arranged at intervals at the bottoms of the first upper baffle plate and the bottom surface of the pre-cooling cavity 2, an air flow channel is formed between the bottom of the first upper baffle plate and the bottom surface of the pre-cooling cavity 2, and an air flow channel is formed between the top of the first lower baffle plate and the top surface of the pre-cooling cavity 2.
The first baffle plate 6 at the rightmost side is a first upper baffle plate, the first upper baffle plate and the right side wall of the pre-cooling cavity 2 form an air inlet channel of the pre-cooling cavity 2, the first air inlet pipe 7 is communicated with the air inlet channel of the pre-cooling cavity 2, the first baffle plate 6 at the leftmost side is a first lower baffle plate, the first lower baffle plate and the left side wall of the pre-cooling cavity 2 form an air outlet channel of the pre-cooling cavity 2, and the second air vent pipe 14 is communicated with the air outlet channel of the pre-cooling cavity 2.
An air flow channel is formed between the bottom of the second upper baffle plate and the bottom surface of the heat exchange condensation cavity 3, and an air flow channel is formed between the top of the second lower baffle plate and the top surface of the heat exchange condensation cavity 3.
The second baffle plate 9 at the leftmost side is a second upper baffle plate, the second upper baffle plate and the left side wall of the heat exchange condensation cavity 3 form an air inlet channel of the heat exchange condensation cavity 3, the second air inlet pipe is communicated with the air inlet channel of the heat exchange condensation cavity 3, the second baffle plate 9 at the rightmost side is a second lower baffle plate, the second lower baffle plate and the right side wall of the precooling cavity 2 form an air outlet channel of the heat exchange condensation cavity 3, and the second ventilation pipe 14 is communicated with the air outlet channel of the precooling cavity 2.
Preferably, a first drain pipe 61 is arranged on the bottom surface of the gas-water separation cavity 4.
Preferably, a second drain pipe 62 is arranged on the bottom surface of the heat exchange condensation chamber 3.
Preferably, a third drain pipe 63 is disposed on the sidewall of the gas-water separation chamber 4, and the third drain pipe 63 is disposed outside the frustum sleeve 121.
Preferably, the first air inlet pipe 7 is connected with a gas filter.
The working process of the heat exchanger for improving the heat exchange efficiency and the cold energy utilization rate comprises the following steps of:
s1, gas to be dried enters a pre-cooling cavity 2 from a first air inlet pipe 7 through a gas filter, is guided by a first baffle plate 6 to flow in the pre-cooling cavity 2 in a baffling way, and simultaneously, the cooled and dried gas flows upwards in a heat exchange jacket 5 under the guidance of a spiral air passage 51, and the baffled gas in the pre-cooling cavity 2 is subjected to pre-cooling heat exchange by the gas in the heat exchange jacket 5;
s2, the precooled air flow enters the heat exchange condensation cavity 3 through the first vent pipe 8, is guided to flow in the heat exchange condensation cavity 3 through the second deflector 9 in a baffling way, sequentially passes through the heat exchange fin plate row sheets 11 between the second deflector 9 to realize multiple condensation heat exchange, and water in the air flow is condensed to form water drops to fall to the bottom of the heat exchange condensation cavity 3 and is discharged through the second drain pipe 62;
s3, enabling the condensed and heat-exchanged air flow to enter the air-water separation cavity 4 through the second ventilation pipe 14, enabling the air flow to flow upwards from the bottom of the air-water separation cavity 4 and sequentially flow through the water collecting assemblies 12, collecting moisture in the air flow through the frustum sleeve 121 and the conical top 122 of the water collecting assembly 12, enabling the collected water drops to fall into the bottom of the air-water separation cavity 4 and be discharged through the first drain pipe 61 or to fall into the periphery of the frustum sleeve 121 of the water collecting assembly 12 and be discharged through the third drain pipe 63;
s4, enabling the air flow flowing through the air-water separation cavity 4 to enter the heat exchange jacket 5 from the third air pipe, and exhausting the air flow through the exhaust pipe 13 after reheating with the air in the pre-cooling cavity 2 in the flowing process of the air flow through the spiral air passage 51 to obtain dry air after cold drying reheating.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" or "comprises" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, third, etc. do not denote any order, and the words may be interpreted as names.
One or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
the invention pre-cools the gas to be cooled and dried, which can not only raise the temperature of the gas to be cooled and dried, but also raise the utilization efficiency of the cold energy of the refrigerant. The heat exchange efficiency is improved through the arrangement of the first baffle 6 and the spiral air passage 51, and the precooling effect is improved.
Through set up second baffling board 9 and heat transfer fin board row piece 11 in heat transfer condensation chamber 3, realize the multitime condensation to single air current, can effectively reduce the volume of equipment when guaranteeing the condensation effect. The corrugated plates 112 staggered on the surfaces of the heat exchange fin plates 110 can realize uniform gas distribution of the air flow, and further improve heat exchange efficiency.
The water removal effect is further improved by arranging a plurality of water collecting assemblies 12 which are sequentially arranged in the vertical direction in the gas-water separation cavity 4, and the dryness of the cold dry air flow is improved.
All of the features disclosed in this specification, except mutually exclusive features, may be combined in any manner.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (10)
1. The heat exchanger is characterized by comprising a shell, wherein a precooling cavity, a heat exchange condensing cavity, a gas-water separation cavity and a heat exchange jacket sleeved outside the precooling cavity are arranged in the shell, the heat exchange condensing cavity is arranged below the precooling cavity, the gas-water separation cavity is arranged on the right side of the heat exchange condensing cavity, a plurality of first baffle plates which are sequentially arranged in the left-right horizontal direction and extend in the vertical direction are arranged in the precooling cavity, the front edge and the rear edge of each first baffle plate are in sealing connection with the front wall and the rear wall of the precooling cavity, the first baffle plates are a plurality of first upper baffle plates arranged on the top surface of the precooling cavity and a plurality of first lower baffle plates arranged on the bottom surface of the precooling cavity, the rightmost side of the upper part of the shell is provided with a first air inlet pipe communicated with the precooling cavity, the leftmost side of the bottom surface of the precooling cavity is provided with a first vent pipe communicated with the heat exchange condensing cavity,
the heat exchange condensing cavity is internally provided with a plurality of second baffle plates which are sequentially arranged along the left-right horizontal direction and extend along the vertical direction, the front edge and the rear edge of the second baffle plates are respectively in sealing connection with the front inner wall and the rear inner wall of the heat exchange condensing cavity, the second baffle plates are a plurality of second upper baffle plates arranged on the top surface of the heat exchange condensing cavity and a plurality of second lower baffle plates arranged on the bottom surface of the heat exchange condensing cavity, the bottoms of the right side wall of the heat exchange condensing cavity are alternately arranged, the bottoms of the right side wall of the heat exchange condensing cavity are provided with a second vent pipe communicated with the gas-water separation cavity, the heat exchange condensing cavity is internally provided with a refrigerant evaporating coil arranged along the horizontal direction, the refrigerant evaporating coil is sleeved with heat exchange fin plates, each heat exchange fin plate comprises a base plate arranged along the vertical direction, the base plate is parallel to the front inner wall and the rear inner wall of the heat exchange condensing cavity, the front surface and the rear surface of the base plate are respectively provided with corrugated plates arranged along the vertical direction in a staggered way, the adjacent corrugated plate peaks are arranged in the horizontal direction in a staggered way, the heat exchange condensing cavity is internally provided with a plurality of fin plates arranged along the front-rear direction, one fin plate is adhered to the fin plate is sequentially, the fin plates are adhered to the fin plates of the heat exchange fin plates are arranged along the horizontal direction and extend along the horizontal direction,
the gas-water separation cavity is internally provided with a plurality of water collecting components which are sequentially arranged along the vertical direction, the water collecting components comprise a frustum sleeve and a conical top, the shape of the bottom edge of the frustum sleeve is the same as the section shape of the gas-water separation cavity, the bottom edge of the frustum sleeve is in sealing connection with the inner wall of the gas-water separation cavity at the corresponding side, the conical top is arranged at the upper part of the frustum sleeve through a support column, the top of the gas-water separation cavity is provided with a third gas-communication pipe which is communicated with the inner cavity of the heat exchange jacket,
the inner cavity of the heat exchange jacket is provided with a spiral air passage, and the top of the heat exchange jacket is provided with an exhaust pipe.
2. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein the first upper baffle plate and the first lower baffle plate are arranged at intervals at the bottoms of the first upper baffle plate and the bottom surface of the pre-cooling cavity, an air flow channel is formed between the bottom of the first upper baffle plate and the bottom surface of the pre-cooling cavity, and an air flow channel is formed between the top of the first lower baffle plate and the top surface of the pre-cooling cavity.
3. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 2, wherein the first baffle plate positioned at the rightmost side is a first upper baffle plate, the first upper baffle plate and the right side wall of the precooling cavity form a precooling cavity air inlet channel, the first air inlet pipe is communicated with the precooling cavity air inlet channel, the first baffle plate positioned at the leftmost side is a first lower baffle plate, the first lower baffle plate and the left side wall of the precooling cavity form a precooling cavity air outlet channel, and the first air pipe is communicated with the precooling cavity air outlet channel.
4. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein an air flow channel is formed between the bottom of the second upper baffle plate and the bottom surface of the heat exchange condensing chamber, and an air flow channel is formed between the top of the second lower baffle plate and the top surface of the heat exchange condensing chamber.
5. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 4, wherein the second baffle plate at the leftmost side is a second upper baffle plate, the second upper baffle plate and the left side wall of the heat exchange condensation chamber form a heat exchange condensation chamber air inlet channel, the second air inlet pipe is communicated with the heat exchange condensation chamber air inlet channel, the second baffle plate at the rightmost side is a second lower baffle plate, the second lower baffle plate and the right side wall of the precooling chamber form a heat exchange condensation chamber air outlet channel, and the first air pipe is communicated with the precooling chamber air outlet channel.
6. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein the bottom surface of the gas-water separation cavity is provided with a first drain pipe.
7. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein a second drain pipe is arranged on the bottom surface of the heat exchange condensing chamber.
8. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein a third drain pipe is arranged on the side wall of the gas-water separation cavity and is arranged on the outer side of the frustum sleeve.
9. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein the first air inlet pipe is connected with a gas filter.
10. The heat exchanger for improving heat exchange efficiency and cold energy utilization rate according to claim 1, wherein the working process comprises the following steps:
the working process comprises the following steps:
s1, gas to be dried enters a pre-cooling cavity from a first air inlet pipe through a gas filter, is guided by a first deflector to flow in the pre-cooling cavity in a baffling way, and simultaneously, the cooled and dried gas flows upwards in a heat exchange jacket under the guidance of a spiral air passage, and the baffled gas in the pre-cooling cavity is subjected to pre-cooling heat exchange by the gas in the heat exchange jacket;
s2, the precooled air flow enters a heat exchange condensation cavity through a first vent pipe, is guided to flow in the heat exchange condensation cavity through a second deflector, flows sequentially pass through heat exchange fin plate row sheets between the second deflector, achieves multiple condensation heat exchange, and water in the air flow is condensed to form water drops to the bottom of the heat exchange condensation cavity and is discharged through a second drain pipe;
s3, enabling the air flow subjected to condensation heat exchange to enter a gas-water separation cavity through a second vent pipe, enabling the air flow to flow upwards from the bottom of the gas-water separation cavity, enabling the air flow to sequentially flow through each water collecting assembly, collecting moisture in the air flow through a frustum sleeve and a conical top of the water collecting assembly, enabling collected water drops to fall into the bottom of the gas-water separation cavity and be discharged through a first drain pipe or to fall into the periphery of the frustum sleeve of the water collecting assembly and be discharged through a third drain pipe;
s4, enabling the air flow flowing through the air-water separation cavity to enter the heat exchange jacket from the third air pipe, and exhausting the air flow through the exhaust pipe after reheating with the air in the pre-cooling cavity in the flowing process of the spiral air passage to obtain dry air after cold drying reheating.
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