Energy-saving and heat-insulating structure for evaporator of refrigerated dryer
By fixing a sealed box to the outside of the evaporator and filling it with foamed insulation material, combined with the design of heat insulation bolts and gap baffles, the problem of insufficient insulation of the evaporator is solved, achieving energy saving and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-27
AI Technical Summary
The insulation effect of the evaporator in the existing refrigerated dryer is insufficient, resulting in serious loss of cold energy, which affects energy consumption and service life.
A sealed box is fixed outside the evaporator, and foamed insulation material is filled between the sealed box and the evaporator. The flow and expansion characteristics during the foaming process are used to achieve a seamless wrapping. The insulation is then fixed and sealed with heat insulation bolts and gap baffles to enhance the insulation effect.
It significantly improves the insulation effect of the evaporator, reduces cold loss, lowers compressor energy consumption, and extends service life.
Smart Images
Figure CN224050707U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to evaporator technical field, specifically belongs to a kind of refrigeration type drying machine evaporator energy-saving heat preservation structure. BACKGROUND
[0002] Refrigeration type drying machine is referred to as cold dryer, and evaporator is the main heat exchange component of the cold dryer. Compressed air is forcedly cooled in the evaporator, and most of the water vapor is condensed into liquid water and discharged outside the machine, so that the compressed air is dried. In the evaporator, the convective heat exchange between air and low-pressure steam is carried out. The low-pressure refrigerant liquid after throttling device changes into low-pressure refrigerant steam in the evaporator, and absorbs the surrounding heat in the phase change process, so that the compressed air is cooled.
[0003] To ensure the working performance of the evaporator, the evaporator needs to be heat-insulated. There are two common heat-insulation methods in the existing technology of refrigeration type drying machine industry. One is to install the evaporator in a foam box. The foam box and the evaporator cannot be completely attached, and there is air between the foam box and the evaporator. The cold energy is radiated through the air. The other is to wrap the evaporator with rubber plastic insulation cotton and bond it with glue. The rubber plastic insulation cotton has micropores and cannot be completely attached to the evaporator, forming some air-filled cavities. The cold energy is radiated to the outside through the air in the cavities. At the same time, the rubber plastic insulation cotton absorbs the moisture in the air, affecting the heat-insulation effect. Therefore, the heat-insulation of the evaporator in the existing technology is not sufficient and needs to be improved. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model aims at overcoming the deficiencies in the prior art, and provides a refrigeration type drying machine evaporator energy-saving heat preservation structure. The present application provides the following technical solutions:
[0005] The utility model discloses an evaporator, sealing box fixedly connected with the evaporator, interval is formed between the inner wall of sealing box and the outer wall of evaporator and forms cavity, foamed heat preservation material is filled in the cavity, and the evaporator is wrapped in the foamed heat preservation material.
[0006] The evaporator side is respectively fixed with a plurality of pipe mouths, and the sealing box is provided with a plurality of through holes corresponding to the pipe mouths. The pipe mouths are clamped in the corresponding through holes to fix the evaporator and the sealing box.
[0007] The evaporator side is provided with a fixing column extending out of the sealing box, and the fixing column is provided with a threaded hole for connecting a heat-insulating bolt to install and fix the evaporator. The heat-insulating bolt is used to fix the evaporator, reducing the loss of cold energy in the evaporator through the connecting structure. At the same time, condensate water is avoided on the connecting structure.
[0008] The gap baffle is closely sleeved on the pipe orifice, and one side of the gap baffle is closely attached to the sealing box, so as to block the gap between the pipe orifice and the pipe.
[0009] The gap baffle is arranged in the sealing box.
[0010] The sealing box is composed of a plurality of side plates which are sealed and spliced or welded.
[0011] The foaming insulation material adopts a polyurethane foaming agent.
[0012] The sealing box is further provided with a sealing structure for closing the side plates.
[0013] As the above technical scheme is adopted, the beneficial effects of the present application are as follows:
[0014] By fixing the sealing box outside the evaporator and filling the foaming insulation material between the sealing box and the evaporator, the foaming insulation material fills the cavity between the sealing box and the evaporator by flowing and swelling during the foaming process, so that the evaporator can be covered without dead angle, the heat preservation effect is remarkable, the cold loss is reduced, the compressor energy consumption is reduced, the energy saving effect is achieved, and after the foaming insulation material is formed, the sealing box protects the foaming insulation material to prevent it from pulverizing and prolong the service life.
[0015] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0017] Figure 1 It is a sealing box installation schematic diagram of an energy-saving and heat-preservation structure of a freeze-type drying machine evaporator.
[0018] Figure 2 It is a gap baffle installation schematic diagram of an energy-saving and heat-preservation structure of a freeze-type drying machine evaporator.
[0019] Figure 3 It is a foaming insulation material filling schematic diagram of an energy-saving and heat-preservation structure of a freeze-type drying machine evaporator.
[0020] Figure 4It is a kind of energy-saving and heat-insulating structure section view of evaporator of refrigeration dryer.
[0021] Fig. 1, evaporator; 11, pipe mouth; 11a, drain port; 11b, refrigerant inlet; 11c, refrigerant outlet; 11d, air outlet; 11e, air inlet; 12, fixed column; 13, heat insulation bolt; 2, sealing box; 21, through port; 22, side plate; 3, cavity; 4, foamed heat-insulating material; 5, gap baffle; 6, sealing structure. DETAILED DESCRIPTION
[0022] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be construed as limiting the present application.
[0023] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact or indirectly contact through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0025] Please refer to Figures 1-4 As shown in the figure, the utility model provides a kind of energy-saving and heat-insulating structure of evaporator of refrigeration dryer, including evaporator 1, with the sealing box 2 of fixed connection of evaporator 1, the cavity 3 formed by the interval between the inner wall of sealing box 2 and the outer wall of evaporator 1, foamed heat-insulating material 4 is filled in cavity 3, and evaporator 1 is wrapped in foamed heat-insulating material 4.
[0026] The side of evaporator 1 is respectively fixed with several pipe mouths 11, and the sealing box 2 is provided with through ports 21 corresponding to the pipe mouths 11, and the pipe mouths 11 are clamped in the corresponding through ports 21 to fix the evaporator 1 and the sealing box 2.
[0027] Specifically, as shown in Figure 1 The evaporator 1 provided by the embodiment of the present application has a water outlet 11a, a refrigerant inlet 11b, a refrigerant outlet 11c, an air outlet 11d, an air inlet 11e, and a fixing column 11f. The sealing box 2 is formed with through openings 21 corresponding to the positions and shapes of the pipe openings 11 of the evaporator 1, and is fixed to the evaporator 1 through the through openings 21.
[0028] The fixing column 12 of the evaporator 1 extends to the outside of the sealing box 2, and is provided with a threaded hole for connecting the heat insulation bolt 13 to fix the evaporator 1 in the body of the refrigerating machine.
[0029] Specifically, the heat insulation bolt 13 is preferably made of nylon, PVC or other plastic materials, or other non-metal materials with low thermal conductivity.
[0030] The gap blocking piece 5 is tightly sleeved on the pipe opening 11, and is tightly attached to the sealing box 2 on one side to block the gap between the through opening 21 and the pipe opening 11.
[0031] The gap blocking piece 5 is also made according to the shape of the pipe opening 11, and is made of non-metal materials such as silica gel, rubber, PVC, nylon, etc. to enhance the sealing performance, block the transfer of cold energy and reduce the loss of cold energy.
[0032] The gap blocking piece 5 is arranged inside the sealing box 2.
[0033] The sealing box 2 is composed of a plurality of side plates 22 which are spliced or welded.
[0034] When the sealing box 2 is made of metal, it can be connected by bolts, rivets or welding; when it is made of plastic or wood, it can be connected by mortise and tenon, screws or adhesion.
[0035] The foamed thermal insulation material 4 is made of polyurethane combined material foaming agent.
[0036] The sealing box 2 is also provided with a sealing structure 6 for sealing the side plates 22.
[0037] Specifically, the sealing structure 6 includes a sealing rubber strip arranged between the side plates 22. When the side plates 22 are spliced by bolts, the sealing rubber strip is attached to the contact surface of the two side plates, and then the two side plates are fixed by bolts. The sealing rubber strip is compressed by the pressing force of the bolts to seal the two side plates.
[0038] In another way, the sealing structure 6 uses waterproof sealant, which can be coated on the contact surface of the two side plates spliced with each other, and then fixed by bolts to realize sealing; or the gaps between the side plates and other positions can be filled and sealed after the sealing box 2 is assembled.
[0039] In the specific implementation, the installer sets the gap blocking piece 5 on each pipe opening 11, assembles several side plates 22 provided with through openings 21 with the evaporator 1, makes the through openings 21 on the side plates 22 pass through the pipe openings 11 on the evaporator 1, and then uses other side plates 22 to assemble with the assembled side plates 22 and fixedly connects the side plates 22, to form a preliminary frame, fix the frame with the evaporator 1, and pay attention to leave at least one opening surface, then move the gap blocking piece 5 to make it fit and block the through opening 21, and then the installer can inject the foamed heat insulating material 4 between the assembled side plates 22 and the evaporator 1, and at the same time, install and fix the remaining side plates 22, and before the last side plate 22 is installed and fixed, fill the foamed heat insulating material 4 and then install the side plate 22 to form the sealing box 2.
[0040] In an optional scheme, the foamed material injection port is further arranged on one or more side plates 22 of the sealing box 2, and a cover is arranged on the foamed material injection port. In the specific operation, after all the side plates 22 are assembled and fixed to form the sealing box 2 and the evaporator 1 is fixed in the sealing box 2, the cover is opened, the foamed heat insulating material 4 is injected into the sealing box 2 through the foamed material injection port, and the cover is closed after the injection is completed.
[0041] Although the embodiments of the application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be construed as limiting the application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the application.
Claims
1. An energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer, characterized in that: It includes an evaporator (1), a sealed box (2) connected and fixed to the evaporator (1), a cavity (3) formed by a gap between the inner wall of the sealed box (2) and the outer wall of the evaporator (1), the cavity (3) is filled with foamed insulation material (4), and the evaporator (1) is wrapped in the foamed insulation material (4).
2. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 1, characterized in that: The evaporator (1) has several pipe openings (11) fixed on its side. The sealing box (2) has a through-hole (21) corresponding to the pipe opening (11). The pipe opening (11) is engaged in the corresponding through-hole (21) to fix the evaporator (1) and the sealing box (2).
3. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 1, characterized in that: The evaporator (1) has a fixing post (12) extending out of the sealing box (2) on its side. The fixing post (12) has a threaded hole for connecting heat insulation bolts (13) to install and fix the evaporator (1).
4. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 2, characterized in that: A gap baffle (5) is tightly fitted on the pipe opening (11). One side of the gap baffle (5) is in close contact with the sealing box (2) to seal the gap between the opening (21) and the pipe opening (11).
5. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 4, characterized in that: The gap baffle (5) is disposed inside the sealed box (2).
6. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 1, characterized in that: The sealed box (2) is composed of multiple side plates (22) spliced or welded together.
7. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 1, characterized in that: The foamed insulation material (4) uses polyurethane foaming agent.
8. The energy-saving and heat-insulating structure for the evaporator of a refrigerated dryer as described in claim 6, characterized in that: The sealed box (2) is also provided with a sealing structure (6) for sealing the side plate (22).