CN117387268A - Coaxial tube bundle evaporator of extrusion type ice maker - Google Patents
Coaxial tube bundle evaporator of extrusion type ice maker Download PDFInfo
- Publication number
- CN117387268A CN117387268A CN202311179390.9A CN202311179390A CN117387268A CN 117387268 A CN117387268 A CN 117387268A CN 202311179390 A CN202311179390 A CN 202311179390A CN 117387268 A CN117387268 A CN 117387268A
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- CN
- China
- Prior art keywords
- refrigerating
- cylinder
- channel
- refrigeration
- channels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 238000005057 refrigeration Methods 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 abstract description 15
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 10
- 238000002156 mixing Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a coaxial tube bundle evaporator of an extrusion type ice maker, which comprises a base, a sealing cover and a refrigeration cylinder. The refrigerating cylinder is made of aluminum alloy; the refrigerating cylinder is provided with a liquid inlet channel, a liquid outlet channel and a refrigerating channel communicated with the two channels; the liquid inlet channel and the liquid outlet channel are respectively positioned at two end surfaces of the refrigeration cylinder; the refrigeration channels are multiple in number; the plurality of refrigeration channels are uniformly distributed along the circumferential direction of the axis of the refrigeration cylinder; according to the invention, the plurality of refrigerating channels are formed in the refrigerating cylinder, and the heat exchange medium is introduced into the refrigerating channels to complete phase change in the refrigerating channels and absorb heat, so that the inner cavity of the refrigerating cylinder is refrigerated. The arrangement of the refrigerating channel reduces the distance between the refrigerant and the water in the refrigerating cylinder, thereby reducing the heat conduction resistance between the refrigerant and the water in the refrigerating cylinder, improving the heat exchange rate of the refrigerant and the running water in the refrigerating cylinder and reducing the energy consumption.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a coaxial tube bundle evaporator of an extrusion type ice maker.
Background
A conventional refrigeration system has an evaporator, a condenser, a throttling device, and a compressor. Wherein, the evaporator is through letting in the rivers that need refrigeration to the inner chamber. Meanwhile, winding a stainless steel tube on the outer surface of the evaporator; the low-temperature refrigerant liquid flows through the stainless steel tube and exchanges heat with the water flow in the evaporator, so that the effect of refrigerating the water flow in the evaporator is achieved.
The patent application with the publication number of CN111964482A provides a winding tube type evaporator, which comprises spiral winding tubes, baffle plates, liquid inlet pipelines, tube side outlet pipelines and return air adjusting pipelines, wherein the spiral winding tubes are arranged in a segmented mode, the baffle plates are arranged between two adjacent sections of spiral winding tubes, the baffle plates comprise gaps, air exhaust cavities and air inlet mixing cavities, the two adjacent sections of spiral winding tubes are communicated through the gaps, the air exhaust cavities are communicated with the air inlet mixing cavities, the air exhaust cavities are communicated with the former section of spiral winding tubes, the air inlet mixing cavities are communicated with the latter section of spiral winding tubes, the liquid inlet pipelines are respectively communicated with the first section of spiral winding tubes and the air inlet mixing cavities, the tube side outlet pipelines are respectively communicated with the last section of spiral winding tubes and the air exhaust cavities, and the return air adjusting pipelines are respectively communicated with the tube side outlet pipelines and the air inlet mixing cavities. The evaporator provided by the invention can effectively adjust the dryness of the tube side in the most efficient evaporation heat exchange area, eliminate the shell side flow dead zone, strengthen the shell side fluid disturbance, finally strengthen the tube side heat exchange and the shell side heat transfer, and improve the overall heat exchange uniformity of the evaporator.
In the above patent, heat exchange and refrigeration are performed on the liquid in the evaporator by providing the spiral wound tube, but the heat exchange efficiency will be affected by the flow rate of the refrigerant in the spiral wound tube and the wall thickness of the spiral wound tube; so that the heat exchange and refrigeration efficiency of the evaporator is reduced.
Disclosure of Invention
The invention aims to provide a coaxial tube bundle evaporator of an extrusion type ice maker.
In a first aspect, the present invention provides a coaxial tube bundle evaporator of an extrusion-type ice maker, comprising a base, a sealing cover and a refrigeration cylinder; the refrigerating cylinder is made of aluminum alloy; a liquid inlet channel, a liquid outlet channel and a refrigerating channel communicated with the two channels are formed between the outer circumferential surface of the refrigerating cylinder and the inner annular wall; the liquid inlet channel and the liquid outlet channel are respectively positioned at two end surfaces of the refrigeration cylinder; the plurality of refrigerating channels are circumferentially and uniformly distributed on the axis of the refrigerating cylinder; the refrigerating cylinder is provided with a liquid inlet pipe and a liquid outlet pipe which are respectively communicated with the liquid inlet channel and the liquid outlet channel; the base and the sealing cover are respectively fixed at two ends of the refrigeration cylinder; the base seals the opening of the liquid outlet channel; the sealing cover seals the liquid inlet channel.
Preferably, the liquid inlet channel and the liquid outlet channel are both annular.
Preferably, the cooling channel is linear and the axis is parallel to the axis of the cooling cylinder.
Preferably, the refrigerating channel is cylindrical.
Preferably, the base is provided with a water inlet communicated with the inner cavity of the refrigeration cylinder.
Preferably, the sealing cover is provided with a central through hole communicated with the inner cavity of the refrigeration cylinder.
Preferably, the aperture of the refrigerating channel is 3 mm-9 mm; the distance between two adjacent refrigerating channels is 0.5 mm-2 mm.
In a second aspect, the present invention provides a refrigeration process using a coaxial tube bundle evaporator of an extrusion-type ice maker according to the first aspect; in the refrigerating process, a heat exchange medium is input into a liquid inlet channel and is split by a plurality of refrigerating channels; the heat exchange medium completes phase change in the refrigerating channel, absorbs heat and reduces the temperature of the inner cavity of the refrigerating cylinder; the heat exchange medium in each refrigerating channel is converged and output at the liquid outlet channel.
In a third aspect, the present invention provides an extrusion ice maker comprising an ice discharge module; further comprising an evaporator according to the second aspect; the ice discharging module comprises a driving element, a rotating shaft and a spiral scraper fixed on the rotating shaft; the rotating shaft is rotationally connected in the refrigeration cylinder, and the axis of the rotating shaft is coincident with the axis of the refrigeration cylinder; the driving element is used for driving the rotating shaft to rotate; the central through hole of the sealing cover is used as an ice outlet of the extrusion ice maker.
Preferably, the ice discharging module further comprises a protective sleeve; the protective sleeve is nested between the refrigeration cylinder and the spiral doctor.
The invention has the beneficial effects that:
1. according to the invention, the plurality of refrigerating channels are formed in the refrigerating cylinder, and the heat exchange medium is introduced into the refrigerating channels to complete phase change in the refrigerating channels so as to absorb heat; thereby refrigerating the inner cavity of the refrigeration cylinder. The arrangement of the refrigerating channel reduces the distance between the refrigerant and the water in the refrigerating cylinder, thereby reducing the heat conduction resistance between the refrigerant and the water in the refrigerating cylinder, and improving the heat exchange rate of the refrigerant and the running water in the refrigerating cylinder. Reduces energy consumption, promotes water circulation and uniform condensation.
2. The refrigerating cylinder is made of aluminum alloy, and the heat conductivity coefficient of the aluminum alloy is 238W/(m.K) which is far higher than that of stainless steel (10-30W/(m.K)), so that the heat exchange efficiency of the refrigerant and water is improved.
Drawings
FIG. 1 is a schematic overall structure of embodiment 1 of the present invention;
FIG. 2 is an exploded view showing the overall structure of embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a refrigerating channel in a refrigerating cylinder in embodiment 1 of the present invention;
fig. 4 is an exploded view showing the overall structure of embodiment 2 of the present invention.
1, a base; 2. sealing cover; 3. a refrigeration cylinder; 3-1, refrigerating channels; 3-2, a liquid inlet channel; 3-3, a liquid outlet channel; 3-4, a liquid inlet pipe; 3-5, a liquid outlet pipe; 4. an ice discharging module; 4-1, a spiral scraper; 4-2, protecting the sleeve.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings.
Example 1
As shown in fig. 1 and 2, a coaxial tube bundle evaporator of an extrusion type ice maker includes a base 1, a sealing cover 2, and a refrigeration cylinder 3 fixed to the base 1. The base 1 is provided with a water inlet which is communicated with the inner cavity of the refrigeration cylinder 3. The material used for the refrigeration cylinder 3 is an aluminum alloy. The heat conductivity coefficient of the aluminum alloy is 238W/(m.K), which is far higher than that of stainless steel (10-30W/(m.K)), thereby improving the heat exchange efficiency of the refrigerant and water.
As shown in fig. 3, a refrigerating channel is formed between the outer circumferential surface of the refrigerating cylinder 3 and the inner annular wall. The refrigerating channel comprises a liquid inlet channel 3-2, a liquid outlet channel 3-3 and a refrigerating channel 3-1 communicated with the two channels. The liquid inlet channel 3-2 and the liquid outlet channel 3-3 are both circular. The liquid inlet channel 3-2 and the liquid outlet channel 3-3 are respectively arranged at two ends of the refrigeration cylinder 3. The base 1 and the sealing cover 2 are respectively fixed at two ends of the refrigeration cylinder 3; the base 1 closes the opening of the liquid outlet channel 3-3; the sealing cover 2 seals the liquid inlet channel 3-2. The refrigeration cylinder 3 is provided with a liquid inlet pipe orifice 3-4 and a liquid outlet pipe 3-5 which are respectively communicated with the liquid inlet channel 3-2 and the liquid outlet channel 3-3. The number of the refrigerating channels 3-1 is plural, and the refrigerating channels 3-1 are uniformly distributed along the circumferential direction of the axis of the refrigerating cylinder 3.
The axis of each refrigeration channel is parallel to the axis of the refrigeration cylinder 3. The aperture of the refrigerating channel 3-1 is 4-6 mm; the smaller the space between the refrigerating channels is, the larger the aperture of the refrigerating channels is, and the higher the heat exchange rate is;
in the refrigerating process, a heat exchange medium is input into the liquid inlet channel 3-2 and is split by a plurality of refrigerating channels 3-1; the heat exchange medium completes phase change in the refrigerating channel 3-1, absorbs heat and reduces the temperature of the inner cavity of the refrigerating cylinder 3; the heat exchange medium in each refrigerating channel 3-1 is converged and output at the liquid outlet channel 3-3. By increasing the flow path of the refrigerant, the heat exchange area is increased; meanwhile, the relative flow velocity of water flow and refrigerant in the inner cavity of the refrigeration cylinder 3 is controlled, so that the heat exchange efficiency is improved.
Example 2
As shown in fig. 1, an extrusion type ice maker includes a base 1, an ice making module 4, and a cooling cylinder 3 fixed to the base 1. The base 1 is provided with a water inlet which is communicated with the inner cavity of the refrigeration cylinder 3. The material used for the refrigeration cylinder 3 is an aluminum alloy. The heat conductivity coefficient of the aluminum alloy is 238W/(m.K), which is far higher than that of stainless steel (10-30W/(m.K)), thereby improving the heat exchange efficiency of the refrigerant and water.
As shown in fig. 3, a plurality of refrigerating channels are formed between the outer circumferential surface of the refrigerating cylinder 3 and the inner annular wall. The refrigerating channel comprises a liquid inlet channel 3-2, a liquid outlet channel 3-3 and a refrigerating channel 3-1 communicated with the two channels. The liquid inlet channel 3-2 and the liquid outlet channel 3-3 are both circular. The liquid inlet channel 3-2 and the liquid outlet channel 3-3 are respectively arranged at two ends of the refrigeration cylinder 3. The base 1 and the sealing cover 2 are respectively fixed at two ends of the refrigeration cylinder 3; the base 1 closes the opening of the liquid outlet channel 3-3; the sealing cover 2 seals the liquid inlet channel 3-2. The refrigeration cylinder 3 is provided with a liquid inlet pipe orifice 3-4 and a liquid outlet pipe 3-5 which are respectively communicated with the liquid inlet channel 3-2 and the liquid outlet channel 3-3.
The refrigerating channels 3-1 are uniformly distributed along the circumferential direction of the axis of the refrigerating cylinder 3. The liquid inlet channel 3-2 and the liquid outlet channel 3-3 are both circular. The liquid inlet channel 3-2 and the liquid outlet channel 3-3 are respectively positioned at two end surfaces of the refrigeration cylinder 3. The refrigeration cylinder 3 is provided with a liquid inlet pipe 3-4 and a liquid outlet pipe 3-5 which are respectively communicated with the liquid inlet channel 3-2 and the liquid outlet channel 3-3.
The refrigerating channels 3-1 are cylindrical, and the axis of each refrigerating channel 3-1 is parallel to the axis of the refrigerating cylinder 3. The aperture of the refrigerating channel 3-1 is 4-6 mm; the smaller the space between the refrigerating channels is, the larger the aperture of the refrigerating channels is, and the higher the heat exchange rate is;
the ice discharging module 4 includes a driving member, a sealing cover 2, a rotating shaft, and a screw blade 4-1 fixed on the rotating shaft. The rotating shaft is rotatably connected in the refrigeration cylinder 3, and the axis of the rotating shaft coincides with the axis of the refrigeration cylinder 3. The driving element is used for driving the rotating shaft to rotate around the central axis. The sealing cover 2 is fixed at the port of the refrigeration cylinder 3; the sealing cover 2 is used for sealing the outer end of the liquid inlet channel 3-2 in the refrigeration cylinder 3. The sealing cover 2 is provided with an ice outlet. In the use process, the spiral scraper 4-1 is driven to rotate by the driving element, so that ice condensed on the inner annular wall of the refrigeration cylinder 3 is scraped off, and the ice is extruded from the ice outlet of the sealing cover 2 under the action of the spiral scraper 4-1. In the process of ice making, the refrigerating channel 3-1 is filled with the refrigerant to refrigerate the liquid in the inner cavity of the refrigerating cylinder 3, and different refrigerating systems need different refrigerant flow rates to realize the optimal cooling effect.
The invention provides an unnecessary technical feature: as shown in fig. 4, the ice module 4 further includes a stainless steel protective sleeve. The 4-2 stainless steel protective sleeve is nested in the inner cavity of the refrigeration cylinder 3; for avoiding scraping of the spiral scraper 4-1 against the inner wall of the refrigerating cylinder 3 during rotation, thereby affecting ice making efficiency. If the strength of the aluminum alloy meets the requirements, the sleeve may not be used.
Claims (9)
1. The coaxial tube bundle evaporator of the extrusion type ice maker comprises a base (1), a sealing cover (2) and a refrigeration cylinder (3); the method is characterized in that: the refrigerating cylinder (3) is made of aluminum alloy; a liquid inlet channel (3-2), a liquid outlet channel (3-3) and a refrigerating channel (3-1) communicated with the two channels are arranged between the outer circumferential surface of the refrigerating cylinder (3) and the inner annular wall; the liquid inlet channel (3-2) and the liquid outlet channel (3-3) are respectively positioned at two end surfaces of the refrigeration cylinder (3); the refrigerating channels (3-1) are shared in a plurality; a plurality of refrigeration channels (3-1) are uniformly distributed along the circumferential direction of the axis of the refrigeration cylinder (3); a liquid inlet pipe (3-4) and a liquid outlet pipe (3-5) which are respectively communicated with the liquid inlet channel (3-2) and the liquid outlet channel (3-3) are arranged on the refrigeration cylinder (3); the base (1) and the sealing cover (2) are respectively fixed at two ends of the refrigeration cylinder (3); the base (1) closes the opening of the liquid outlet channel (3-3); the sealing cover (2) seals the liquid inlet channel (3-2).
2. The coaxial tube bundle evaporator of an extrusion ice making machine of claim 1, wherein: the liquid inlet channel (3-2) and the liquid outlet channel (3-3) are both in a circular ring shape.
3. The coaxial tube bundle evaporator of an extrusion ice making machine of claim 1, wherein: the refrigerating channel (3-1) is linear, and the axis is parallel to the axis of the refrigerating cylinder (3).
4. The coaxial tube bundle evaporator of an extrusion ice making machine of claim 1, wherein: the refrigerating channel (3-1) is cylindrical.
5. The coaxial tube bundle evaporator of an extrusion ice making machine of claim 1, wherein: the base (1) is provided with a water inlet communicated with the inner cavity of the refrigeration cylinder (3).
6. The coaxial tube bundle evaporator of an extrusion ice making machine of claim 1, wherein: the sealing cover (2) is provided with a central through hole communicated with the inner cavity of the refrigeration cylinder (3).
7. A method of refrigeration, characterized by: a coaxial tube bundle evaporator for use with an extrusion icemaker according to any one of claims 1-6; in the refrigerating process, a heat exchange medium is input into the liquid inlet channel (3-2) and is split by a plurality of refrigerating channels (3-1); the heat exchange medium completes phase change in the refrigerating channel (3-1), absorbs heat and reduces the temperature of the inner cavity of the refrigerating cylinder (3); the heat exchange medium in each refrigerating channel (3-1) is converged and output at the liquid outlet channel (3-3).
8. An extrusion ice maker comprising an ice-out module (4); the method is characterized in that: further comprising an evaporator according to claim 6; the ice discharging module (4) comprises a driving element, a rotating shaft and a spiral scraper (4-1) fixed on the rotating shaft; the rotating shaft is rotationally connected in the refrigeration cylinder (3), and the axis of the rotating shaft is coincident with the axis of the refrigeration cylinder (3); the driving element is used for driving the rotating shaft to rotate; the central through hole of the sealing cover (2) is used as an ice outlet of the extrusion ice maker.
9. The ice-making machine of claim 8, wherein: the ice discharging module (4) also comprises a stainless steel protective sleeve (4-2); a stainless steel protective sleeve (4-2) is nested between the refrigeration cylinder (3) and the spiral scraper (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179390.9A CN117387268A (en) | 2023-09-13 | 2023-09-13 | Coaxial tube bundle evaporator of extrusion type ice maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179390.9A CN117387268A (en) | 2023-09-13 | 2023-09-13 | Coaxial tube bundle evaporator of extrusion type ice maker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117387268A true CN117387268A (en) | 2024-01-12 |
Family
ID=89469101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311179390.9A Pending CN117387268A (en) | 2023-09-13 | 2023-09-13 | Coaxial tube bundle evaporator of extrusion type ice maker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117387268A (en) |
-
2023
- 2023-09-13 CN CN202311179390.9A patent/CN117387268A/en active Pending
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