Evaporator of snow melting machine
By improving the evaporator structure, the inner barrel and the outer barrel are arranged coaxially, a closed refrigeration chamber is formed, and surface contact conduction is achieved using the liquid conduction member and the liquid outlet hole, the problems of low refrigeration efficiency and poor reliability of the spiral-wrapped copper tube evaporator are solved, which improves the refrigeration efficiency and reduces costs.
Patent Information
- Application Number
- CN202422354938.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The existing spiral-wound copper tube evaporators have problems such as low refrigeration efficiency, poor heat transfer capability, and poor working reliability. The spiral tube is easy to separate from the inner and outer barrels, resulting in poor refrigeration effect and high production costs.
The inner barrel is arranged coaxially with the outer barrel, forming a closed refrigeration chamber, and surface contact conduction is achieved through the liquid inlet tank connected to the folded edges and notches. The outer wall of the inner barrel is equipped with a liquid conduction member and a liquid outlet hole to enhance the contact area and conduction efficiency of the refrigeration medium, and optimize the structure with the exhaust pipe and insulation material.
It improves the refrigeration efficiency, reduces manufacturing costs, enhances the heat absorption capacity of the refrigeration medium, and ensures the stability and reliability of the refrigeration effect.
Smart Images
Figure CN223165760U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration devices, in particular to an evaporator of a snow melter. Background Art
[0002] At present, evaporators of commonly used ice water machines, ice cream machines, snow melters, etc. are mostly evaporators with spiral wound copper tubes. This evaporator places a spiral tube inside or outside a barrel, and the refrigeration medium flows inside the spiral tube. After heat transfer through the tube wall of the spiral tube to contact the inside or outside barrel, it can be transferred to the liquid to be cooled. Affected by the solenoid tube and the wall thickness of the inner and outer barrels, the heat transfer path is not simple and direct enough, so the refrigeration effect is not ideal. Moreover, there are certain gaps in the spiral tube itself, which determines that the spiral tube cannot be in full contact with the inside or outside barrel, resulting in poor heat transfer efficiency. After being used for a period of time, the spiral tube may also separate from the inside or outside barrel due to factors such as its own tension, resulting in poor refrigeration effect or even no refrigeration. In addition, when the polyurethane foam used as the thermal insulation layer material expands during foaming, it is very easy to squeeze into the spaces between the spiral tubes, separating the solenoid tube from the inside or outside barrel, which will also cause poor refrigeration effect or no refrigeration. Therefore, the evaporator with spiral wound copper tubes has low refrigeration efficiency, poor working reliability, low heat transfer ability, and the spiral tubes are wound relatively densely, resulting in a relatively high production cost. Summary of the Utility Model
[0003] In order to solve the above problems existing in the prior art, the utility model provides an evaporator of a snow melter.
[0004] The above problems of the utility model are solved by the following technical solutions:
[0005] An evaporator of a snow melter, including an outer barrel, the inside of the outer barrel is filled with a refrigeration medium, and the liquid is dripped onto the outer surface of the outer barrel and scraped off by a scraper after condensation;
[0006] It further includes,
[0007] An inner barrel, which is arranged as a cylindrical shell with both ends open and coaxial with the outer barrel, and the first end is connected to the end of the outer barrel, and the second end is provided with a flanging outward, so as to form a closed refrigeration chamber between the inner barrel and the outer barrel;
[0008] A notch is provided on the flanging, and a liquid inlet groove communicating with the notch is provided in the refrigeration chamber, and the refrigeration medium enters the refrigeration chamber through the liquid inlet groove.
[0009] The further setting of the above technical solution is: a liquid guiding member is arranged in the refrigeration chamber, and the liquid inlet groove is located on the liquid guiding member;
[0010] At least one end of the liquid inlet groove is open and communicates with the notch.
[0011] The further setting of the above technical solution is that the liquid guiding member at least includes a liquid guiding bottom connected to the outer wall of the inner barrel and liquid guiding walls formed on both sides of the liquid guiding bottom, and the liquid inlet groove is located between the liquid guiding bottom and the liquid guiding walls;
[0012] The end of the liquid guiding wall is turned outwards to be provided with a flanging.
[0013] The further setting of the above technical solution is that a plurality of liquid outlet holes are distributed on the liquid guiding member and communicated with the liquid inlet groove;
[0014] The liquid outlet holes are arranged on the liquid guiding walls.
[0015] The further setting of the above technical solution is that at least one liquid inlet groove is provided, and the number of notches on the flanging is the same as the number of liquid inlet grooves.
[0016] The further setting of the above technical solution is that the liquid inlet groove is a spiral recess provided on the outer wall of the inner barrel.
[0017] The further setting of the above technical solution is that the refrigeration chamber is also communicated with an exhaust pipe, and the exhaust pipe passes through the barrel wall of the inner barrel.
[0018] The further setting of the above technical solution is that a heat preservation space is arranged at the center of the inner barrel, and heat preservation materials are filled in the heat preservation space.
[0019] The further setting of the above technical solution is that it further includes an installation bracket, the installation bracket is provided at the bottom of the outer barrel, and the first end of the inner barrel is connected to the installation bracket;
[0020] An installation ring extends axially on the installation bracket, and an installation groove is formed between the installation ring and the inner wall of the outer barrel;
[0021] A sealing ring is arranged in the installation groove, and the first end of the inner barrel is connected to the sealing ring.
[0022] The further setting of the above technical solution is that a thermostat is arranged on the outer barrel.
[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0024] 1. In the present utility model, the original line contact conduction mode is changed to a surface contact conduction mode, effectively solving the problems of poor contact and low conduction efficiency between the coil pipe and the outer barrel, enabling the refrigeration medium to rapidly absorb heat from the outer barrel, thereby accelerating the condensation effect and improving the refrigeration efficiency;
[0025] 2. Compared with the manufacturing cost of the coil pipe, in the present utility model, the inner barrel is provided, reducing the production materials and saving costs. Description of the Drawings
[0026] Figure 1 This is a schematic cross-sectional structure diagram of the present utility model.
[0027] Figure 2 This is a schematic installation structure diagram of the liquid guiding member on the inner barrel.
[0028] Figure 3 This is a schematic cross-sectional structure diagram of the liquid guiding member in the refrigeration chamber in Embodiment 1.
[0029] Figure 4 It is Figure 1 an enlarged structure diagram of part A in
[0030] Figure 5 It is Figure 1 an enlarged structure diagram of part B in
[0031] Figure 6 This is a schematic cross-sectional structure diagram of the liquid guiding member in the refrigeration chamber in Embodiment 2.
[0032] Figure 7 This is a schematic structure diagram of the liquid inlet groove in Embodiment 3.
[0033] Figure 8 This is a schematic position structure diagram of the liquid outlet hole in Embodiment 4.
[0034] Marked on the attached drawings: 100, outer barrel;
[0035] 200, inner barrel; 210, hem; 211, notch;
[0036] 300, mounting bracket; 310, mounting ring;
[0037] 400, liquid inlet pipe;
[0038] 500, sealing ring;
[0039] 600, exhaust pipe;
[0040] 700, liquid guiding member; 710, liquid guiding bottom; 720, liquid guiding wall; 730, flanging; 701, liquid outlet hole;
[0041] 800, rotating shaft tube;
[0042] 900, end cover;
[0043] 1, thermostat;
[0044] a, refrigeration chamber; b, liquid inlet groove; c, liquid passing gap; d, heat preservation space. Detailed implementation manners
[0045] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.
[0046] like Figure 1-8 As shown, the following embodiment provides an evaporator for a snow melt machine.
[0047] Example 1
[0048] An evaporator of a snow melter includes an outer barrel 100, wherein the interior of the outer barrel 100 is filled with a refrigerant, and liquid drips onto the outer surface of the outer barrel 100, condenses, and is then scraped off by a scraper;
[0049] Also includes,
[0050] The inner tub 200 is a cylindrical shell with two open ends and coaxial with the outer tub 100. The first end is connected to the end of the outer tub 100, and the second end is provided with a folded edge 210 outward, so that a closed refrigeration chamber a is formed between the inner tub 200 and the outer tub 100.
[0051] A notch 211 is provided on the folded edge 210 , and a liquid inlet groove b communicating with the notch 211 is provided in the refrigeration chamber a. The refrigeration medium enters the refrigeration chamber a through the liquid inlet groove b.
[0052] The above is the basic solution of this embodiment.
[0053] Specific reference Figure 1 As shown, the outer barrel 100 is configured as a shell having an open end and a bottom at the other end, and the inner barrel 200 is located inside the outer barrel 100 and is coaxially arranged with the outer barrel 100; the inner barrel 200 can be directly welded to the bottom of the outer barrel 100, or can be sealed and connected to the outer barrel 100 through a connecting component;
[0054] Reference Figure 2 As shown, the second end of the inner barrel 200 is folded outward to form a folded edge 210, and the outer end of the folded edge 210 is connected to the inner wall of the outer barrel 100, so that a closed refrigeration chamber a is formed between the inner barrel 200 and the outer barrel 100;
[0055] At the same time, a notch 211 is provided on the folded edge 210, and a liquid inlet groove b is provided in the refrigeration chamber a and communicates with the notch 211 on the folded edge 210;
[0056] In this embodiment, a liquid inlet pipe 400 is further provided for inputting the refrigerant medium into the liquid inlet tank b;
[0057] The liquid inlet pipe 400 extends into the liquid inlet tank b through the notch 211;
[0058] The refrigeration medium is input into the liquid inlet tank b through the liquid inlet pipe 400 and enters the refrigeration chamber a along the liquid inlet tank b;
[0059] The refrigeration medium acts in the refrigeration chamber a to cool the outer barrel 100, and the liquid condenses on the surface of the outer barrel 100 and is scraped off by the scraper on the side of the outer barrel 100.
[0060] In this embodiment, an end cover 900 is provided at the open end of the outer barrel 100 for sealing.
[0061] In this embodiment, the refrigeration medium is a conventional refrigerant.
[0062] In this embodiment, the liquid inlet pipe 400 is a capillary tube, and the size of the notch 211 is at least large enough to accommodate the insertion of the liquid inlet pipe 400.
[0063] In this embodiment, the structure of the scraper and the usage mode of the evaporator are the same as those of the evaporator in the prior art, and will not be elaborated here.
[0064] In this embodiment, the refrigeration medium is continuously input into the refrigeration chamber a and contacts the inner surface of the outer barrel 100. The contact area is the entire inner surface of the outer barrel 100. Compared with the spiral tube, the contact area in this embodiment is large and the refrigeration effect is good;
[0065] When the refrigeration medium works in the refrigeration chamber a, it absorbs the heat on the outer barrel 100 and vaporizes to form a gas. To prevent the gas from filling the refrigeration chamber a and affecting the input of the refrigeration medium, in this embodiment, the refrigeration chamber a is also connected to an exhaust pipe 600, and the formed gas is output to the outside of the refrigeration chamber a through the exhaust pipe 600, so that the refrigeration chamber a can continuously receive the refrigeration medium.
[0066] During use, the refrigeration medium is continuously input from the liquid inlet tank b into the refrigeration chamber a, and the gas formed by vaporization is output from the exhaust pipe 600 to form a cycle, so that the heat of the liquid can be continuously absorbed to ensure the refrigeration effect of the evaporator.
[0067] In this embodiment, a liquid guiding member 700 is provided in the refrigeration chamber a, and the liquid inlet tank b is located on the liquid guiding member 700;
[0068] At least one end of the liquid inlet tank b is open and communicates with the notch 211.
[0069] Specifically referring to Figure 2 and Figure 4 As shown, in this embodiment, the liquid guiding member 700 is set to be long and strip-shaped, the liquid inlet tank b is a concave portion provided on the surface of the liquid guiding member 700, and at least one end of the liquid inlet tank b is open and communicates with the notch 211.
[0070] In this embodiment, the other end of the liquid inlet tank b abuts against the mounting bracket 300.
[0071] The refrigeration medium enters the liquid inlet tank b through the notch 211 on the hem 210, and flows along the liquid inlet tank b, and flows out at the notch of the liquid inlet tank b and enters the refrigeration chamber a;
[0072] In order to ensure the smooth outflow of the refrigeration medium, in this embodiment, there is a gap between the end of the tank wall of the liquid inlet tank b and the inner wall of the outer barrel 100.
[0073] In other embodiments, both ends of the liquid inlet tank b can also be set as openings, and the refrigeration medium can also flow out from the other end opening of the liquid inlet tank b and enter the refrigeration chamber a.
[0074] In this embodiment, the liquid guiding member 700 at least includes a liquid guiding bottom 710 connected to the outer wall of the inner barrel 200 and liquid guiding walls 720 formed on both sides of the liquid guiding bottom 710, and the liquid inlet tank b is located between the liquid guiding bottom 710 and the liquid guiding walls 720;
[0075] The end of the liquid guiding wall 720 is turned outwards to be provided with a flanging 730.
[0076] Specifically referring to Figure 3 As shown, the outer end surface of the liquid guiding bottom 710 is fixed on the outer wall of the inner barrel 200 and is fixedly connected to the inner barrel 200;
[0077] There is a liquid passing gap c between the flanging 730 and the inner wall of the outer barrel 100, and the refrigeration medium can overflow from the liquid passing gap c into the refrigeration chamber a.
[0078] Preferably, in order to ensure that the refrigeration medium can pass through the liquid inlet pipe 400, the liquid inlet tank b and the liquid passing gap c in sequence, in this embodiment, the opening part of the pipe orifice of the liquid inlet pipe 400 is completely located in the liquid inlet tank b.
[0079] In this embodiment, the liquid guiding bottom 710 and the inner barrel 200 are fixed by welding.
[0080] In this embodiment, the flanging 730 is provided, so that a liquid passing gap c with a width much smaller than that of the refrigeration chamber a is formed between the flanging 730 and the inner wall of the outer barrel 100. When the refrigeration medium overflows from the liquid inlet tank b, it must enter the liquid passing gap c, that is to say, it directly contacts the inner wall of the outer barrel 100 first, so as to directly cool the outer barrel 100.
[0081] In this embodiment, at least one liquid inlet tank b is provided, and the number of notches 211 on the hem 210 is the same as the number of liquid inlet tanks b.
[0082] In order to increase the input speed of the refrigeration medium, a liquid guiding member 700 can be arranged on the surface of the inner barrel 200, so as to arrange a plurality of liquid inlet tanks b and matching notches 211 for introducing the refrigeration medium.
[0083] When in use, the cylinder body is usually placed upside down. At this time, the liquid gap c between the flange 730 and the outer barrel 100 is located at the upper and lower ends of the liquid inlet groove b. When the liquid inlet pipe 400 inputs the refrigerant into the liquid inlet groove b, due to the action of gravity, the refrigerant is output from the liquid gap c below and is evenly distributed along the inner wall of the outer barrel 100, so that it can quickly vaporize and absorb heat from the outer barrel 100, and cool the outer barrel 100 to achieve a rapid cooling effect.
[0084] In this embodiment, the exhaust pipe 600 passes through the wall of the inner barrel 200 and extends from the middle portion of the inner barrel 200 to connect the refrigeration chamber a with the external space.
[0085] In this embodiment, the exhaust pipe 600 extends from the end cover 900 to discharge the gas to the external space.
[0086] In this embodiment, when the refrigerant medium works in the refrigeration chamber a, it will simultaneously absorb heat from the walls of the outer barrel 100 and the inner barrel 200, and have a cooling effect on both the outer barrel 100 and the inner barrel 200; therefore, when the air in the center of the inner barrel 200 contacts the wall of the inner barrel 200, pre-cooling and liquefaction will produce water droplets. In this embodiment, an insulation space d is provided in the center of the inner barrel 200, and the insulation space d is filled with insulation material.
[0087] Specific reference Figure 1 As shown, the insulation material is filled into the insulation space d, occupying the space in the center of the inner barrel 200, reducing the contact between the air and the inner barrel 200, thereby avoiding the liquefaction of the air on the surface of the inner barrel 200;
[0088] In addition, when the heat-insulating material is filled in the center of the inner barrel 200, the surface of the inner barrel 200 cannot dissipate heat, thereby ensuring the cooling effect to the greatest extent.
[0089] In this embodiment, a rotating shaft tube 800 is provided in the center of the inner barrel 200 , the heat preservation space d is located between the rotating shaft tube 800 and the inner barrel 200 , and the end of the rotating shaft tube 800 is connected to the mounting bracket 300 and the end cover 900 .
[0090] In this embodiment, to ensure the sealing effect of the refrigeration chamber a, a mounting bracket 300 is further included. The mounting bracket 300 is provided at the bottom of the outer tub 100, and the first end of the inner tub 200 is connected to the mounting bracket 300. A mounting ring 310 is provided on the mounting bracket 300 along the axial direction, and a mounting groove is formed between the mounting ring 310 and the inner wall of the outer tub 100.
[0091] A sealing ring 500 is provided in the installation groove, and the first end of the inner barrel 200 is connected to the sealing ring 500 .
[0092] Specifically referring to Figure 2 and Figure 5 As shown, a groove is provided on the end face of the sealing ring 500, and the first end of the inner barrel 200 is snapped into the groove, thereby realizing the connection with the sealing ring 500;
[0093] A part of the sealing ring 500 located outside the groove enters the refrigeration chamber a, seals one end of the refrigeration chamber a, and the other end is sealed by the hem 210.
[0094] In this embodiment, a thermostat 1 is provided on the outer barrel 100.
[0095] Specifically referring to Figure 1 As shown, the temperature measuring head of the thermostat 1 passes through the bottom of the outer barrel 100 and the mounting bracket 300 to measure and monitor the temperature in the heat preservation space d.
[0096] Embodiment 2
[0097] This embodiment is an improvement based on Embodiment 1, and the purpose is to accelerate the input of the refrigeration medium. The specific implementation method is as follows:
[0098] A plurality of liquid outlet holes 701 are distributed on the liquid guiding member 700 and communicate with the liquid inlet groove b;
[0099] The liquid outlet holes 701 are provided on the liquid guiding wall 720.
[0100] Preferably, referring to Figure 6 As shown, in this embodiment, the liquid outlet holes 701 are provided on the groove wall of the liquid inlet groove b, that is to say, on the liquid guiding wall 720. The refrigeration medium entering the liquid inlet groove b can directly be output from the liquid outlet holes 701 on the liquid guiding wall 720 into the refrigeration chamber a.
[0101] Embodiment 3
[0102] This embodiment provides a new structure of the liquid inlet groove. The specific implementation method is as follows: The liquid inlet groove b is a spiral concave portion provided on the outer wall of the inner barrel 200.
[0103] Specifically referring to Figure 7 As shown, the liquid inlet groove b is spirally recessed on the outer wall of the inner barrel 200, and the liquid inlet pipe 400 communicates with one end of the liquid inlet groove b, and the exhaust pipe 600 is connected to the other end of the liquid inlet groove b.
[0104] The refrigeration medium enters the liquid inlet groove b through the liquid inlet pipe 400 and flows along the spiral shape towards the other end. During the flowing process, it contacts the inner wall of the outer barrel 100, absorbs the heat of the outer barrel 100, and at the same time, squeezes the air in the refrigeration chamber a towards the exhaust pipe 600 side to discharge the air from the exhaust pipe 600.
[0105] Example 4
[0106] This example is an improvement based on Example 3, aiming to accelerate the input of the refrigeration medium. The specific implementation is as follows:
[0107] A plurality of liquid outlet holes 701 are distributed on the liquid guiding member 700 and communicate with the liquid inlet groove b;
[0108] The liquid outlet holes 701 are arranged on the flanging 730.
[0109] Preferably, as shown in Figure 8 In this example, the liquid outlet holes 701 are arranged on the flanging 730, and the direction is along the circumferential direction of the inner barrel 200, and overflows from the liquid inlet groove to both sides.
[0110] When the refrigeration medium in the liquid inlet groove b fills the entire liquid inlet groove b, the refrigeration medium located inside the flanging 730 overflows to both sides through the liquid outlet holes 701, thereby accelerating the speed of the refrigeration medium entering the refrigeration chamber a;
[0111] Compared with being arranged on the liquid guiding wall 720, in this example, the position of the liquid outlet holes 701 is closer to the inner wall of the outer barrel 100, so that it can contact the outer barrel 100 more quickly and cool the outer barrel 100.
[0112] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes. However, as long as it does not depart from the technical content of the present invention, any brief modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. An evaporator of a snow melter, comprising an outer barrel (100), with a refrigeration medium filled inside the outer barrel (100). Liquid is poured onto the outer surface of the outer barrel (100), condenses, and is scraped off by a scraper. It is characterized in that: It further includes an inner barrel (200), which is a cylindrical shell with both ends open and coaxial with the outer barrel (100). The first end is connected to the end of the outer barrel (100), and the second end is provided with a flange (210) extending outward, so as to form a sealed refrigeration chamber (a) between the inner barrel (200) and the outer barrel (100). A notch (211) is provided on the flange (210), and a liquid inlet groove (b) communicating with the notch (211) is provided in the refrigeration chamber (a). The refrigeration medium enters the refrigeration chamber (a) through the liquid inlet groove (b).
2. The evaporator of the snowmelt machine according to claim 1, characterized in that: A liquid guiding member (700) is arranged in the refrigeration chamber (a), and the liquid inlet groove (b) is located on the liquid guiding member (700). At least one end of the liquid inlet groove (b) is open and communicates with the notch (211).
3. The evaporator of the snowmelt machine according to claim 2, characterized in that: The liquid guiding member (700) at least includes a liquid guiding bottom (710) connected to the outer wall of the inner barrel (200) and liquid guiding walls (720) formed on both sides of the liquid guiding bottom (710). The liquid inlet groove (b) is located between the liquid guiding bottom (710) and the liquid guiding walls (720). The end of the liquid guiding wall (720) is turned outward and provided with a flanging (730).
4. The evaporator of the snow melter according to claim 3, characterized in that: A plurality of liquid outlet holes (701) communicating with the liquid inlet groove (b) are distributed on the liquid guiding member (700). The liquid outlet holes (701) are arranged on the liquid guiding walls (720).
5. The evaporator of the snow melting machine according to claim 3 or 4, characterized in that: At least one liquid inlet groove (b) is provided, and the number of notches (211) on the flange (210) is the same as the number of liquid inlet grooves (b).
6. The evaporator of the snow melter according to claim 1, wherein: The liquid inlet groove (b) is a spiral recess provided on the outer wall of the inner barrel (200).
7. The evaporator of the snow melting machine according to claim 1, characterized in that: The refrigeration chamber (a) is further communicated with an exhaust pipe (600), and the exhaust pipe (600) passes through the barrel wall of the inner barrel (200).
8. The evaporator of the snow melter according to claim 1, characterized in that: A heat preservation space (d) is arranged at the center of the inner barrel (200), and heat preservation materials are filled in the heat preservation space (d).
9. The evaporator of the snow melting machine according to claim 1, characterized in that: It further includes a mounting bracket (300). The mounting bracket (300) is provided at the bottom of the outer barrel (100), and the first end of the inner barrel (200) is connected to the mounting bracket (300). An installation ring (310) extends axially on the mounting bracket (300), and an installation groove is formed between the installation ring (310) and the inner wall of the outer barrel (100). A sealing ring (500) is arranged in the installation groove, and the first end of the inner barrel (200) is connected to the sealing ring (500).
10. The evaporator of the snow melter according to claim 8, characterized in that: A temperature controller (1) is arranged on the outer barrel (100).