Double-layer heat-insulated water tank type laser cold water machine evaporator

Abstract

The utility model discloses a double -deck heat -proof water tank formula laser cold water machine evaporimeter, including evaporimeter shell, the inside of evaporimeter shell is provided with the evaporimeter inner bag of mutual cooperation with evaporimeter shell uses, the top of evaporimeter shell and the position of corresponding evaporimeter inner bag is equipped with refrigeration assembly, the outside of evaporimeter shell is provided with evaporimeter outer layer. The utility model discloses through spiral evaporation coil pipe cooperation good heat conductivity 304 stainless steel evaporimeter inner bag increase the contact area with circulating water, significantly improve heat exchange efficiency, while, utilize evaporimeter shell and evaporimeter inner bag double -deck structure and glass fiber cotton filling layer effectively reduce the heat conduction efficiency, make evaporimeter shell temperature maintain above the ambient dew point temperature, prevent the condensed water from producing fundamentally, in addition, the fluorine propylene acid ester hydrophobic coating coated on the surface of evaporimeter inner bag can avoid trace condensed water gather and flow, prolong the equipment life.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, and in particular to a double-layer insulated hot water box type laser chiller evaporator. Background Technology

[0002] In refrigeration equipment such as laser chillers, the evaporator is a core component of the refrigeration system, and its performance directly affects the efficiency and stability of the entire system. However, when the evaporator surface temperature is lower than the ambient air dew point temperature, condensation easily forms on its surface. This condensation can not only lead to safety hazards such as short circuits and corrosion of internal electrical components, but also reduce the overall performance and lifespan of the equipment.

[0003] Currently, traditional evaporators mostly use rotomolded or PP water tanks. While these materials offer advantages such as low cost, easy molding, and good chemical resistance, leading to their widespread use in small and medium-sized evaporators, existing technologies still have the following shortcomings:

[0004] Limitations in thermal insulation performance: Although rotomolded water tanks and PP material water tanks have better thermal insulation performance than metal, when their thickness is insufficient or their structural design is unreasonable, condensation will still occur due to local temperature differences, and the condensation problem cannot be fundamentally solved.

[0005] Insulation cotton application defects: Traditional laser chillers often reduce condensation by applying insulation cotton to the surface of the evaporator. However, this method suffers from aging and damage due to impacts over long-term use, and it also has low processing efficiency, increasing production costs and maintenance difficulty.

[0006] Lack of systematic design: Current anti-condensation technology for evaporators lacks systematic design and fails to comprehensively consider various aspects such as evaporator structure, material selection, and heat conduction control to fundamentally eliminate the conditions for condensation generation. Utility Model Content

[0007] The purpose of this invention is to provide an evaporator for a double-layer insulated water tank type laser chiller. By using a spiral evaporation coil in conjunction with a 304 stainless steel evaporator inner tank with good thermal conductivity, the contact area with circulating water is increased, significantly improving heat exchange efficiency. Simultaneously, the double-layer structure of the evaporator shell and inner tank, along with a glass fiber cotton filling layer, effectively reduces heat conduction efficiency, keeping the evaporator shell temperature above the ambient dew point temperature, fundamentally preventing condensation. Furthermore, the fluorinated acrylate hydrophobic coating on the surface of the evaporator inner tank prevents the accumulation and flow of trace amounts of condensate, extending the equipment's lifespan.

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A double-layer insulated water tank type laser chiller evaporator includes:

[0010] An evaporator housing is provided inside which an evaporator inner liner is provided to cooperate with the evaporator housing. A refrigeration component is installed on the top of the evaporator housing at a position corresponding to the evaporator inner liner.

[0011] The aforementioned double-layer insulated hot water tank type laser chiller evaporator, wherein the outer shell of the evaporator is provided with an outer evaporator layer.

[0012] The aforementioned double-layer insulated water tank type laser chiller evaporator, wherein the outer layer of the evaporator is made of polypropylene material.

[0013] The aforementioned double-layer insulated water tank type laser chiller evaporator has a filling layer between the evaporator shell and the evaporator inner tank.

[0014] In the aforementioned double-layer insulated hot water tank type laser chiller evaporator, the filling layer is made of glass fiber cotton material.

[0015] The aforementioned double-layer insulated hot water tank type laser chiller evaporator has a hydrophobic coating on the outer wall of the inner liner of the evaporator, and the hydrophobic coating is made of fluorinated acrylate material.

[0016] The aforementioned double-layer insulated hot water tank type laser chiller evaporator, wherein the refrigeration component includes a sealing cover, the top of the evaporator shell is provided with a sealing connection flange that matches the sealing cover, and a spiral evaporation coil is installed at the bottom of the sealing cover.

[0017] The aforementioned double-layer insulated hot water tank type laser chiller evaporator has an inner tank water inlet and an inner tank drain outlet arranged sequentially on the side of the inner tank.

[0018] The aforementioned double-layer insulated hot water tank type laser chiller evaporator has a plurality of heat-insulating supports arranged at equal intervals on the inner liner of the evaporator, and the inner liner of the evaporator is coaxially fixed to the outer shell of the evaporator through the heat-insulating supports.

[0019] In the aforementioned double-layer insulated hot water tank type laser chiller evaporator, a plurality of equidistantly arranged positioning pins are fixedly connected to the edge of the top of the inner tank of the evaporator, and a positioning groove matching the positioning pin is provided at the bottom of the sealing cover corresponding to the position of the positioning pin.

[0020] This utility model has at least the following beneficial effects:

[0021] 1. This utility model realizes a double-layer insulated hot water tank type laser chiller evaporator. By using a spiral evaporation coil in conjunction with a 304 stainless steel evaporator inner tank with good thermal conductivity, the contact area with circulating water is increased, significantly improving heat exchange efficiency. At the same time, the double-layer structure of the evaporator shell and the evaporator inner tank, as well as the glass fiber cotton filling layer, effectively reduces heat conduction efficiency, keeping the temperature of the evaporator shell above the ambient dew point temperature, fundamentally preventing condensation. In addition, the fluorinated acrylate hydrophobic coating on the surface of the evaporator inner tank can prevent the accumulation and flow of trace amounts of condensate, extending the equipment life.

[0022] 2. Effectively prevents condensation: The double-layer structure design of the evaporator shell and inner liner reduces the heat transfer efficiency between the evaporator shell and the spiral evaporator coil, allowing the temperature of the evaporator shell to be maintained above the ambient dew point temperature, fundamentally eliminating the conditions for condensation. The glass fiber cotton filling layer between the evaporator shell and the inner liner further attenuates the transfer of cold energy. At the same time, the temperature of the evaporator shell is compensated by ambient heat, ensuring that the shell temperature is always higher than the dew point temperature, thus preventing the generation of condensation.

[0023] 3. Improved heat exchange efficiency: The inner liner of the evaporator is made of 304 stainless steel with good thermal conductivity. Combined with the spiral evaporator coil, it significantly increases the contact area with circulating water, thereby improving heat exchange efficiency and enabling the refrigeration system to lower the water temperature more quickly and effectively.

[0024] 4. Enhanced equipment stability and lifespan: The hydrophobic coating on the inner surface of the evaporator reduces the surface tension of the inner tank. Even if a small amount of condensate is occasionally generated, it will form droplets rather than accumulate and flow, avoiding the corrosion of the equipment interior by the condensate and thus extending the service life of the equipment.

[0025] 5. Adaptable to extreme environments and low-temperature scenarios: The double-layer insulated water tank structure design enables the evaporator of this utility model to adapt to extreme humidity environments and low-temperature scenarios, ensuring stable operation under various harsh conditions without the generation of condensate.

[0026] 6. Improved production efficiency and reduced costs: Compared with the traditional method of attaching insulation cotton to the surface of the evaporator, this utility model does not require additional insulation cotton material and complicated processing procedures, which not only improves production efficiency, but also reduces production costs and maintenance difficulty. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1This is a schematic diagram of the structure of the evaporator of the double-layer insulated hot water box laser chiller of this utility model;

[0029] Figure 2 This is a cross-sectional structural diagram of the evaporator of the double-layer insulated hot water box laser chiller of this utility model;

[0030] Figure 3 This is an exploded structural diagram of the evaporator of the double-layer insulated hot water box laser chiller of this utility model;

[0031] Figure 4 This is a schematic diagram of the refrigeration component in the evaporator of the double-layer insulated hot water box laser chiller of this utility model.

[0032] Explanation of icon numbers:

[0033] 1. Evaporator outer shell; 2. Evaporator inner liner; 3. Refrigeration components;

[0034] 101. Evaporator outer layer; 102. Filler layer;

[0035] 201. Hydrophobic coating;

[0036] 202. Inner tank water inlet; 2021. Inner tank drain outlet;

[0037] 203. Thermal insulation bracket;

[0038] 204. Positioning pin; 2041. Positioning slot;

[0039] 301, Sealing cap; 3011, Sealing connection flange; 3012, Spiral evaporator coil. Detailed Implementation

[0040] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0041] Please refer to Figures 1 to 4 As shown, an embodiment of this utility model provides a double-layer insulated hot water tank type laser chiller evaporator, including: an evaporator shell 1, an evaporator inner liner 2 that cooperates with the evaporator shell 1 inside the evaporator shell 1, and a refrigeration component 3 installed on the top of the evaporator shell 1 at a position corresponding to the evaporator inner liner 2.

[0042] By adopting the above technical solution, the contact area between the spiral evaporator coil 3012 and the evaporator inner liner 2 with good thermal conductivity is increased, significantly improving the heat exchange efficiency. At the same time, the double-layer structure of the evaporator shell 1 and the evaporator inner liner 2, along with the glass fiber cotton filling layer 102, effectively reduces the heat conduction efficiency, keeping the temperature of the evaporator shell 1 above the ambient dew point temperature, fundamentally preventing condensation. In addition, the fluorinated acrylate hydrophobic coating 201 applied to the surface of the evaporator inner liner 2 can prevent the accumulation and flow of trace amounts of condensate, extending the equipment life.

[0043] In order to enhance the chemical resistance and structural strength of the evaporator shell 1 while reducing costs, in this embodiment, an evaporator outer layer 101 is provided on the outside of the evaporator shell 1. The evaporator outer layer 101 is made of polypropylene material. Polypropylene material has good chemical corrosion resistance, is easy to mold and has low cost, which can effectively improve the durability and economy of the evaporator shell 1.

[0044] To further reduce heat transfer efficiency and prevent condensation, in this embodiment, a filling layer 102 is provided between the evaporator shell 1 and the evaporator inner liner 2. The filling layer 102 is made of glass fiber cotton, which has excellent heat insulation properties and can effectively attenuate the transfer of cold energy, so that the temperature of the evaporator shell 1 is maintained above the ambient dew point temperature, thereby avoiding the generation of condensation.

[0045] To prevent trace amounts of condensate from accumulating and flowing on the surface of the evaporator inner liner 2 and to reduce the risk of equipment corrosion, in this embodiment, a hydrophobic coating 201 is provided on the outer wall of the evaporator inner liner 2. The hydrophobic coating 201 is made of fluorinated acrylate material. The fluorinated acrylate hydrophobic coating 201 can reduce the surface tension of the evaporator inner liner 2, causing the condensate to form droplets and avoid accumulation and flow, thereby extending the service life of the equipment.

[0046] To achieve a tight connection between the refrigeration component 3 and the evaporator housing 1 and to improve heat exchange efficiency, in this embodiment: the refrigeration component 3 includes a sealing cover 301, the top of the evaporator housing 1 is provided with a sealing connection flange 3011 that matches the sealing cover 301, and a spiral evaporation coil 3012 is installed at the bottom of the sealing cover 301. The sealing connection flange 3011 ensures a tight connection between the refrigeration component 3 and the evaporator housing 1, while the spiral evaporation coil 3012 increases the contact area with the circulating water and improves the heat exchange efficiency.

[0047] To facilitate the entry and exit of circulating water and achieve efficient refrigeration cycle, in this embodiment: the inner tank 2 of the evaporator is provided with an inner tank water inlet 202 and an inner tank drain outlet 2021 in sequence on the side. The arrangement of the inner tank water inlet 202 and the inner tank drain outlet 2021 allows circulating water to smoothly enter and exit the inner tank 2 of the evaporator, thereby achieving efficient refrigeration cycle.

[0048] To ensure a stable connection between the evaporator outer shell 1 and the evaporator inner liner 2 and to reduce heat conduction, in this embodiment, a plurality of heat-insulating brackets 203 are arranged at equal intervals on the evaporator inner liner 2, and the evaporator inner liner 2 is coaxially fixed to the evaporator outer shell 1 through the heat-insulating brackets 203. The heat-insulating brackets 203 ensure a stable connection between the evaporator outer shell 1 and the evaporator inner liner 2.

[0049] To achieve rapid positioning and tight connection between the sealing cap 301 and the evaporator inner liner 2, in this embodiment: a plurality of positioning pins 204 arranged at equal intervals are fixedly connected to the top edge of the evaporator inner liner 2, and a positioning groove 2041 matching the positioning pins 204 is provided at the bottom of the sealing cap 301 at the position corresponding to the positioning pins 204. The cooperation between the positioning pins 204 and the positioning groove 2041 enables the sealing cap 301 to be quickly positioned and tightly connected to the evaporator inner liner 2, thereby improving assembly efficiency.

[0050] The working principle of this utility model is as follows:

[0051] The double-layer structure of the evaporator shell 1 and the evaporator inner liner 2 effectively reduces the heat transfer efficiency between the evaporator shell 1 and the spiral evaporator coil 3012. The evaporator inner liner 2 is made of 304 stainless steel with good thermal conductivity, and together with the spiral evaporator coil 3012, significantly increases the contact area with circulating water, thereby improving heat exchange efficiency. Simultaneously, the glass fiber cotton filling layer 102 between the evaporator shell 1 and the evaporator inner liner 2 further attenuates the transfer of cold energy, allowing the temperature of the evaporator shell 1 to be compensated by ambient heat and maintained above the dew point temperature, fundamentally eliminating condensation. Furthermore, the fluorinated acrylate hydrophobic coating 201 applied to the surface of the evaporator inner liner 2 reduces the surface tension of the inner liner, causing even occasional trace amounts of condensate to form droplets, preventing accumulation and flow, and allowing the droplets to eventually evaporate naturally. This design is not only suitable for extreme humidity environments, but also performs exceptionally well in low-temperature scenarios, ensuring the evaporator's high heat exchange efficiency and compact structural design.

[0052] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An evaporator for a double-layer insulated water tank type laser chiller, comprising an evaporator shell (1), characterized in that, The evaporator shell (1) is provided with an evaporator inner liner (2) that works in conjunction with the evaporator shell (1), and a refrigeration assembly (3) is installed on the top of the evaporator shell (1) at a position corresponding to the evaporator inner liner (2).

2. The double-layer insulated hot water tank type laser chiller evaporator according to claim 1, characterized in that: An evaporator outer layer (101) is provided on the outside of the evaporator shell (1).

3. The double-layer insulated water tank type laser chiller evaporator according to claim 2, characterized in that: The outer layer (101) of the evaporator is made of polypropylene.

4. The double-layer insulated hot water tank type laser chiller evaporator according to claim 3, characterized in that: A filling layer (102) is provided between the evaporator outer shell (1) and the evaporator inner liner (2).

5. The evaporator for a double-layer insulated water tank type laser chiller according to claim 4, characterized in that: The filling layer (102) is made of glass fiber cotton material.

6. The evaporator for a double-layer insulated hot water tank type laser chiller according to claim 5, characterized in that: The outer wall of the evaporator inner liner (2) is provided with a hydrophobic coating (201), which is made of fluorinated acrylate material.

7. The evaporator for a double-layer insulated hot water tank type laser chiller according to claim 6, characterized in that: The refrigeration assembly (3) includes a sealing cover (301), and the top of the evaporator housing (1) is provided with a sealing connection flange (3011) that matches the sealing cover (301). A spiral evaporator coil (3012) is installed at the bottom of the sealing cover (301).

8. The evaporator for a double-layer insulated hot water tank type laser chiller according to claim 7, characterized in that: The inner liner (2) of the evaporator is provided with an inner liner water inlet (202) and an inner liner drain outlet (2021) in sequence on its side.

9. The evaporator for a double-layer insulated water tank type laser chiller according to claim 8, characterized in that: The evaporator inner liner (2) is provided with a plurality of heat insulation brackets (203) arranged at equal intervals, and the evaporator inner liner (2) is coaxially fixed to the evaporator outer shell (1) through the heat insulation brackets (203).

10. The evaporator for a double-layer insulated hot water tank type laser chiller according to claim 9, characterized in that: The evaporator inner liner (2) has several equidistantly arranged positioning pins (204) fixedly connected at the top edge. The bottom of the sealing cover (301) and the position corresponding to the positioning pins (204) are provided with positioning grooves (2041) that match the positioning pins (204).

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