Heat preservation device for ultralow-temperature heating compressor of air source heat pump

Abstract

The utility model relates to the technical field of heat preservation devices, and discloses an air source heat pump ultralow temperature heating compressor heat preservation device which comprises an inner layer flexible ceramic fiber heat preservation layer, and a middle layer aerogel heat insulation felt heat preservation layer is fixedly installed outside the inner layer flexible ceramic fiber heat preservation layer. An outer reflection aluminum foil heat preservation layer is fixedly installed outside the middle aerogel heat insulation felt heat preservation layer, and a double-time fixing mechanism is arranged on the inner side of the inner flexible ceramic fiber heat preservation layer. According to the heat preservation device for the ultralow-temperature heating compressor of the air source heat pump, through cooperation of the silica gel sealing strips and the dovetail insertion strips, the close sides of the heat preservation layers can be preliminarily reinforced in an interference fit installation mode, heat leakage at the joints is reduced, meanwhile, pre-fixing of the heat preservation layers can be achieved, the falling risk can be reduced through double insurance, and the service life of the heat preservation layers is prolonged. When the hook-and-loop fastener thorn surface is separated from the hook-and-loop fastener rough surface, the heat preservation layer cannot directly expose the gap, sealing can be effectively prevented from being affected, and enough processing time is provided for workers.

Description

Technical Field

[0001] This utility model relates to the field of heat preservation device technology, specifically a heat preservation device for an air source heat pump ultra-low temperature heating compressor. Background Technology

[0002] When an air source heat pump operates in a low-temperature environment, the compressor efficiency may decrease or even frost may form, affecting the heating effect. Therefore, insulation devices are needed to maintain the efficient operation of the compressor and prevent performance degradation or damage caused by low temperatures.

[0003] In existing technologies, insulation cotton is typically used when insulating air source heat pump ultra-low temperature heating compressors. The insulation cotton is wrapped around the compressor using Velcro straps on its surface, and the rough and barbed sides adhere together to achieve insulation. However, in actual use, the Velcro straps are prone to loss of adhesion due to temperature changes, vibration, or aging, leading to separation between the rough and barbed sides and affecting the seal. Therefore, an improved insulation device for air source heat pump ultra-low temperature heating compressors is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an insulation device for an air source heat pump ultra-low temperature heating compressor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat preservation device for an air source heat pump ultra-low temperature heating compressor, comprising an inner flexible ceramic fiber insulation layer, a middle aerogel insulation felt layer fixedly installed on the outside of the inner flexible ceramic fiber insulation layer, an outer reflective aluminum foil insulation layer fixedly installed on the outside of the middle aerogel insulation felt layer, and a double fixing mechanism provided on the inner side of the inner flexible ceramic fiber insulation layer.

[0006] Preferably, the double-fixing mechanism includes a first connecting strip, which is fixedly installed at the left end of the inner flexible ceramic fiber insulation layer. A second connecting strip is fixedly installed at the end of the inner flexible ceramic fiber insulation layer away from the first connecting strip. A silicone sealing strip is fixedly installed inside the first connecting strip. A dovetail insert is fixedly installed on the left side of the second connecting strip. A Velcro bar is fixedly installed on the outside of the outer reflective aluminum foil insulation layer. A Velcro rough side is fixedly installed on the front of the first connecting strip.

[0007] Preferably, the middle aerogel insulation layer and the outer reflective aluminum foil insulation layer are fixedly installed on the left side of the connecting strip one at the end near the first connecting strip, and the middle aerogel insulation layer and the outer reflective aluminum foil insulation layer are fixedly installed on the right side of the connecting strip two at the end near the second connecting strip.

[0008] Preferably, both the connecting strip and the silicone sealing strip have dovetail grooves inside, and the silicone sealing strip is fixedly installed inside the dovetail groove inside the connecting strip, and the dovetail insert is disposed inside the dovetail groove inside the silicone sealing strip.

[0009] Preferably, the thickness of the inner flexible ceramic fiber insulation layer is set at 3-5 mm, the density is 96 kg / m³, and the thermal conductivity is ≤0.04 W / (m·K).

[0010] The thickness of the middle layer aerogel insulation felt is set at 10-12mm, the density is 180-220kg / m³, the tensile strength is ≥0.15MPa, and the water contact angle is ≥150°.

[0011] The outer reflective aluminum foil insulation layer has a thickness of 0.1-0.2 mm, a surface emissivity of ≤0.05, and a temperature resistance of ≥150℃.

[0012] Preferably, the compression rate of the silicone sealing strip is 20%-25%, and the front end of the dovetail insert has a 5° chamfer.

[0013] Preferably, the hook and loop sides of the hook and loop fastener are made of silicone-based hook and loop fasteners and are resistant to temperatures from -40℃ to 200℃.

[0014] Compared with the prior art, this utility model provides a heat preservation device for an air source heat pump ultra-low temperature heating compressor, which has the following beneficial effects:

[0015] 1. This air source heat pump ultra-low temperature heating compressor insulation device, through its dual-fixing mechanism, uses a silicone sealing strip and dovetail insert to initially reinforce the side of the insulation layer that is close together through an interference fit installation method. This reduces heat leakage at the joint and achieves pre-fixation of the insulation layer. The second reinforcement is achieved using the hook and loop fasteners with their barbed and rough sides. This double protection reduces the risk of detachment. When the hook and loop fasteners separate, the insulation layer will not be directly exposed through the gap, effectively preventing the seal from being compromised and giving workers sufficient time to handle the situation.

[0016] 2. This air source heat pump ultra-low temperature heating compressor insulation device, through the combination of an inner flexible ceramic fiber insulation layer, a middle aerogel insulation felt insulation layer and an outer reflective aluminum foil insulation layer, can achieve gradient insulation. The inner layer is attached to the compressor surface, the middle layer efficiently blocks conductive heat, and the outer layer reflects heat radiation. At the same time, the flexible structure of the three layers can reduce the impact of compressor vibration on the double fixing mechanism and prevent vibration from causing the silicone sealing strip and dovetail insert to separate, or the hook and loop fastener to separate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the external structure of this utility model;

[0020] Figure 3 This is an exploded view of the external structure of the double-fixing mechanism of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the connecting strip and its connecting structure according to the present invention.

[0022] In the diagram: 1. Inner flexible ceramic fiber insulation layer; 2. Double fixing mechanism; 21. Connecting strip one; 22. Connecting strip two; 23. Silicone sealing strip; 24. Dovetail insert; 25. Velcro barbed side; 26. Velcro rough side; 3. Middle aerogel insulation felt insulation layer; 4. Outer reflective aluminum foil insulation layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-4This utility model provides a technical solution: an air source heat pump ultra-low temperature heating compressor insulation device, including an inner flexible ceramic fiber insulation layer 1, a middle aerogel insulation felt insulation layer 3 fixedly installed on the outside of the inner flexible ceramic fiber insulation layer 1, an outer reflective aluminum foil insulation layer 4 fixedly installed on the outside of the middle aerogel insulation felt insulation layer 3, and a double fixing mechanism 2 provided on the inner side of the inner flexible ceramic fiber insulation layer 1.

[0027] Furthermore, the double-fixing mechanism 2 includes a connecting strip 1 21, which is fixedly installed on the left end of the inner flexible ceramic fiber insulation layer 1. A connecting strip 22 is fixedly installed on the end of the inner flexible ceramic fiber insulation layer 1 away from the connecting strip 1 21. A silicone sealing strip 23 is fixedly installed inside the connecting strip 1 21. A dovetail insert 24 is fixedly installed on the left side of the connecting strip 22. A Velcro barbed surface 25 is fixedly installed on the outside of the outer reflective aluminum foil insulation layer 4. A Velcro rough surface 26 is fixedly installed on the front of the connecting strip 1 21. This facilitates the reinforcement and installation of the inner flexible ceramic fiber insulation layer 1, the middle aerogel insulation felt insulation layer 3, and the outer reflective aluminum foil insulation layer 4 through the double-fixing mechanism 2, preventing the rough surface from separating from the barbed surface and causing a decrease in sealing performance.

[0028] Furthermore, the middle layer aerogel insulation felt 3 and the outer layer reflective aluminum foil insulation layer 4 are fixedly installed at the ends of the connecting strip 1 21 and the left side of the connecting strip 1 21, and at the ends of the middle layer aerogel insulation felt 3 and the outer layer reflective aluminum foil insulation layer 4 are fixedly installed at the right side of the connecting strip 22, so as to facilitate the fixing of the two ends of the inner flexible ceramic fiber insulation layer 1, the middle layer aerogel insulation felt 3 and the outer layer reflective aluminum foil insulation layer 4 through the connecting strip 1 21 and the connecting strip 2 22.

[0029] Furthermore, both the connecting strip 21 and the silicone sealing strip 23 have dovetail grooves inside. The silicone sealing strip 23 is fixedly installed inside the dovetail groove inside the connecting strip 21, and the dovetail insert 24 is set inside the dovetail groove inside the silicone sealing strip 23. Through the dovetail groove, the silicone sealing strip 23 and the dovetail insert 24 can be snapped together, which can both block thermal bridges and moisture penetration, and balance sealing performance and insertion resistance.

[0030] Furthermore, the thickness of the inner flexible ceramic fiber insulation layer 1 is set at 3-5mm, the density is 96kg / m³, and the thermal conductivity is ≤0.04W / (m·K), which facilitates its adhesion to the surface of the compressor for insulation.

[0031] The thickness of the middle layer aerogel insulation felt 3 is set at 10-12mm, the density is 180-220kg / m³, the tensile strength is ≥0.15MPa, which can avoid tearing during installation, and the water contact angle is ≥150°, which can prevent condensate water penetration.

[0032] The outer reflective aluminum foil insulation layer 4 has a thickness of 0.1-0.2mm, a surface emissivity of ≤0.05, and a temperature resistance of ≥150℃, which can reduce heat radiation loss.

[0033] Furthermore, the compression rate of the silicone sealing strip 23 is 20%-25%, and the front end of the dovetail insert 24 has a 5° chamfer, which can facilitate insertion while ensuring both sealing performance and insertion resistance, and ensure sufficient pressure on the contact surface.

[0034] Furthermore, the hook and loop fastener 25 and the hook and loop fastener 26 are made of silicone-based hook and loop fasteners and are resistant to temperatures ranging from -40℃ to 200℃, which increases the service life of the hook and loop fastener 25 and the hook and loop fastener 26.

[0035] In actual operation, when this device is used, firstly, the inner flexible ceramic fiber insulation layer 1, the middle aerogel insulation felt insulation layer 3, and the outer reflective aluminum foil insulation layer 4 are placed on the outside of the compressor. At this time, the connecting strips 21 and 22 at both ends are brought closer together, and the dovetail insert 24 is inserted into the inside of the silicone sealing strip 23. After inserting the long dovetail insert 24 from top to bottom into the inside of the silicone sealing strip 23, the pre-fixation of the insulation layer is completed. At this time, the hook and loop fastener 26 is pulled to make the hook and loop fastener 26 and the hook and loop fastener 25 fit together, and the inner flexible ceramic fiber insulation layer 1, the middle aerogel insulation felt insulation layer 3, and the outer reflective aluminum foil insulation layer 4 are fixed on the outside of the compressor. At this time, the compressor can be insulated.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A thermal insulation device for an air-source heat pump ultra-low temperature heating compressor, comprising an inner flexible ceramic fiber insulation layer (1), characterized in that: The inner flexible ceramic fiber insulation layer (1) is fixedly installed with a middle aerogel insulation felt insulation layer (3) on the outside, and an outer reflective aluminum foil insulation layer (4) is fixedly installed on the outside of the middle aerogel insulation felt insulation layer (3). The inner flexible ceramic fiber insulation layer (1) is provided with a double fixing mechanism (2).

2. The insulation device for an air source heat pump ultra-low temperature heating compressor according to claim 1, characterized in that: The double fixing mechanism (2) includes a connecting strip one (21), which is fixedly installed on the left end of the inner flexible ceramic fiber insulation layer (1). A connecting strip two (22) is fixedly installed on the end of the inner flexible ceramic fiber insulation layer (1) away from the connecting strip one (21). A silicone sealing strip (23) is fixedly installed inside the connecting strip one (21). A dovetail insert (24) is fixedly installed on the left side of the connecting strip two (22). A hook and loop fastener (25) is fixedly installed on the outside of the outer reflective aluminum foil insulation layer (4). A hook and loop fastener (26) is fixedly installed on the front side of the connecting strip one (21).

3. The insulation device for an air source heat pump ultra-low temperature heating compressor according to claim 2, characterized in that: The middle layer aerogel insulation layer (3) and the outer layer reflective aluminum foil insulation layer (4) are fixedly installed at one end near the first connecting strip (21) and at the left side of the first connecting strip (21). The middle layer aerogel insulation layer (3) and the outer layer reflective aluminum foil insulation layer (4) are fixedly installed at one end near the second connecting strip (22) and at the right side of the second connecting strip (22).

4. The insulation device for an air source heat pump ultra-low temperature heating compressor according to claim 2, characterized in that: Both the connecting strip (21) and the silicone sealing strip (23) have dovetail grooves inside. The silicone sealing strip (23) is fixedly installed inside the dovetail groove opened inside the connecting strip (21), and the dovetail insert (24) is set inside the dovetail groove inside the silicone sealing strip (23).

5. The insulation device for an air source heat pump ultra-low temperature heating compressor according to claim 2, characterized in that: The thickness of the inner flexible ceramic fiber insulation layer (1) is set at 3-5mm, the density is 96kg / m³, and the thermal conductivity is ≤0.04W / (m·K); The thickness of the middle layer aerogel insulation felt (3) is set at 10-12mm, and the density is 180-220kg / m³, the tensile strength is ≥0.15MPa, and the water contact angle is ≥150°. The thickness of the outer reflective aluminum foil insulation layer (4) is set at 0.1-0.2 mm, the surface emissivity is ≤0.05, and the temperature resistance is ≥150℃.

6. The insulation device for an air source heat pump ultra-low temperature heating compressor according to claim 2, characterized in that: The compression rate of the silicone sealing strip (23) is 20%-25%, and the front end of the dovetail insert (24) is chamfered at 5°.

7. The insulation device for an air source heat pump ultra-low temperature heating compressor according to claim 2, characterized in that: The hook and loop fasteners (25) and (26) are made of silicone-based hook and loop fasteners and are resistant to temperatures from -40℃ to 200℃.

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