Foaming heat preservation structure of solar hot water tank

Abstract

The utility model discloses a foaming heat preservation structure of a solar hot water tank, which comprises the solar hot water tank, and foaming agents are sprayed into a clamping cavity between an outer shell and an inner container of the solar hot water tank to foam to form a foaming heat preservation layer. A foaming agent wraps the air pipe during foaming, so that the air pipe serves as a supporting framework for enhancing the structural strength of the foaming heat preservation layer; the air pipe is in butt joint with an air pressure detection device, and at least part of the pipe side is a deformable layer. When the foaming heat preservation layer is changed in shape, the adhered deformable layer is driven to deform, and air pressure of the air pipe is changed. The air pipe serves as a supporting framework of the foaming heat preservation layer, the structural strength of the foaming heat preservation layer can be enhanced, whether the foaming heat preservation layer has morphological changes or not is detected according to changes of air pressure in the pipe, the stability of the foaming heat preservation layer is improved, and the heat preservation effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar water heaters, in particular to a foaming insulation structure of a solar water heater. Background Art

[0002] The insulation cavity of the solar water heater is formed by spraying a foaming agent into a foaming insulation layer. Due to its insufficient internal support strength, the filled foam insulation layer is prone to morphological changes over time, such as shrinkage and breakage, which affects the insulation effect. Moreover, the foam insulation layer is sealed in the insulation cavity, making it difficult to intuitively and timely detect its morphological changes. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a foam insulation structure for a solar water heater. The air pipe is used as a supporting skeleton of the foam insulation layer to enhance its structural strength. The air pressure change in the pipe is used to detect whether the foam insulation layer undergoes morphological changes, thereby improving the stability of the foam insulation layer and ensuring the insulation effect.

[0004] Technical solution: To achieve the above purpose, the foaming insulation structure of the solar water heater of the utility model comprises a solar water heater, wherein a foaming agent is sprayed into the cavity between the outer shell and the inner tank of the solar water heater to form a foaming insulation layer;

[0005] It includes an air pipe extending into the clamping cavity, and the air pipe is wrapped by the foaming agent when foaming, so that the air pipe serves as a supporting skeleton for enhancing the structural strength of the foaming insulation layer;

[0006] The air pipe is connected to an air pressure detection device, and at least part of the pipe side is a deformable layer; when the foamed insulation layer changes shape, the adhered deformable layer is deformed, causing the air pressure of the air pipe to change.

[0007] Furthermore, the trachea is in a positive pressure state due to the heat-insulating gas filled therein, and the deformable layer protrudes out of the tube side of the trachea due to the positive pressure gas top force provided by the heat-insulating gas.

[0008] Furthermore, the deformable layer accounts for no more than half of the tube side area of ​​the trachea.

[0009] Furthermore, the deformable layer is composed of a plurality of rubber layers, and the plurality of rubber layers are evenly distributed along the axial direction of the air pipe.

[0010] Furthermore, a through hole is opened on the air pipe corresponding to the rubber layer, and the rubber layer covers the through hole.

[0011] Furthermore, the ends of the air pipe are a blocked end and an open end respectively, the blocked end passes through the end cover of the solar water heater and extends into the clamping cavity, and the open end docking the air pressure detection device is connected to the end cover through a mounting flange.

[0012] Furthermore, there are multiple air tubes, and the multiple air tubes are arranged in a circular array along the circular contour of the clamping cavity.

[0013] Furthermore, the air pressure detection device is an air pressure sensor.

[0014] Beneficial effects: The utility model uses the air pipe as the supporting skeleton of the foamed insulation layer, which can enhance its structural strength, reduce the probability of the foamed insulation layer undergoing morphological changes such as shrinkage and breakage, and detect whether the foamed insulation layer undergoes morphological changes based on changes in the air pressure in the pipe. When the foamed insulation layer undergoes morphological changes, the adhered deformable layer will be deformed, thereby causing changes in the air pressure in the pipe, which can be detected in time by an air pressure detection device, thereby improving the stability of the foamed insulation layer and ensuring the insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of a half-section structure of the utility model;

[0016] Attached Figure 2 For attachment Figure 1 A schematic diagram of the local enlarged structure of the middle A area;

[0017] Attached Figure 3 Schematic diagram of the trachea structure. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] As attached Figure 1 and attached Figure 2As shown, the foaming insulation structure of the solar water heater comprises a solar water heater, wherein a foaming agent is sprayed into a cavity between an outer shell 1 and an inner tank 2 of the solar water heater to form a foaming insulation layer 3; an air pipe 5 is included which extends into the cavity, and the foaming agent wraps the air pipe 5 when foaming, so that the air pipe 5 serves as a supporting skeleton for enhancing the structural strength of the foaming insulation layer 3; the air pipe 5 is connected to an air pressure detection device 7, and at least part of the tube side is a deformable layer; when the foaming insulation layer 3 undergoes a morphological change, the adhered deformable layer is deformed, causing the air pressure of the air pipe 5 to change. The utility model uses the air pipe 5 as the supporting skeleton of the foamed thermal insulation layer 3, which can enhance its structural strength, reduce the probability of the foamed thermal insulation layer 3 undergoing morphological changes such as shrinkage and breakage, and detect whether the foamed thermal insulation layer 3 undergoes morphological changes based on the changes in the air pressure in the pipe. When the foamed thermal insulation layer 3 undergoes morphological changes, the adhered deformable layer will be deformed, thereby causing the air pressure in the pipe to change, which can be detected in time by the air pressure detection device 7, thereby improving the stability of the foamed thermal insulation layer and ensuring the thermal insulation effect.

[0020] As attached Figure 3 As shown, the air pipe 5 is in a positive pressure state due to the filling of the insulating gas, and the deformable layer protrudes from the side of the air pipe 5 due to the positive pressure gas top force provided by the insulating gas. The protruding deformable layer is convenient for the foaming agent to adhere firmly during foaming, and when the foamed insulating layer 3 undergoes a morphological change to drive the deformable layer to deform, the air pressure change in the air pipe 5 can be more obvious and can be more easily detected by the air pressure detection device 7, thereby improving accuracy.

[0021] In the present utility model, preferably, the air pressure detection device 7 is an air pressure sensor.

[0022] It should be noted that the air pipe 5 serves as a supporting skeleton for improving the structural strength of the foamed insulation layer 3, and its proportion relative to the deformable layer is larger. Therefore, as a preferred embodiment, in the utility model, the proportion of the deformable layer relative to the tube side area of ​​the air pipe 5 does not exceed half.

[0023] More specifically, as Figure 1 or attached Figure 2 or attached Figure 3 As shown, the deformable layer is composed of a plurality of rubber layers 6, and the plurality of rubber layers 6 are evenly distributed along the axial direction of the air tube 5, thereby increasing the coverage extension range of the deformable layer and providing a better coverage range for monitoring the morphological changes of the entire foamed thermal insulation layer 3. More specifically, the number of the air tubes 5 is multiple, and the multiple air tubes 5 are arranged in a circular array along the circular contour of the sandwich cavity.

[0024] A through hole 50 is formed on the air pipe 5 corresponding to the rubber layer 6 , and the rubber layer 6 covers the through hole 50 .

[0025] The ends of the air pipe 5 are respectively a blocked end and an open end. The blocked end passes through the end cover 4 of the solar water heater and extends into the clamping cavity. The open end of the air pressure detection device 7 is connected to the end cover 4 through a mounting flange 8, and the mounting flange 8 is fixedly mounted on the end cover 4 with screws.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A foaming insulation structure for a solar water heater, comprising a solar water heater, wherein a foaming agent is sprayed into a cavity between an outer shell (1) and an inner tank (2) of the solar water heater to form a foaming insulation layer (3); Features: It comprises an air pipe (5) extending into the clamping cavity, and the foaming agent wraps the air pipe (5) when foaming, so that the air pipe (5) serves as a supporting skeleton for enhancing the structural strength of the foamed thermal insulation layer (3); The air pipe (5) is connected to an air pressure detection device (7), and at least part of the pipe side is a deformable layer; when the foamed thermal insulation layer (3) undergoes a morphological change, the adhered deformable layer is driven to deform, causing the air pressure of the air pipe (5) to change.

2. The foam insulation structure of the solar water heater according to claim 1, characterized in that: The air pipe (5) is in a positive pressure state due to the heat-insulating gas filled therein, and the deformable layer protrudes from the side of the air pipe (5) due to the positive pressure gas pressure provided by the heat-insulating gas.

3. The foam insulation structure of the solar water heater according to claim 2, characterized in that: The deformable layer accounts for no more than half of the tube side area of ​​the trachea (5).

4. The foam insulation structure of the solar water heater according to claim 3, characterized in that: The deformable layer is composed of a plurality of rubber layers (6), and the plurality of rubber layers (6) are evenly distributed along the axial direction of the air pipe (5).

5. The foam insulation structure of the solar water heater according to claim 4, characterized in that: A through hole (50) is provided on the air pipe (5) corresponding to the rubber layer (6), and the rubber layer (6) covers the through hole (50).

6. The foam insulation structure of the solar water heater according to claim 5, characterized in that: The ends of the air pipe (5) are respectively a blocked end and an open end. The blocked end penetrates the end cover (4) of the solar water heater and extends into the clamping cavity. The open end of the air pressure detection device (7) is connected to the end cover (4) via a mounting flange (8).

7. The foam insulation structure of the solar water heater according to claim 6, characterized in that: The number of the air tubes (5) is multiple, and the multiple air tubes (5) are arranged in a circular array along the circular contour of the clamp cavity.

8. The foam insulation structure of the solar water heater according to claim 6, characterized in that: The air pressure detection device (7) is an air pressure sensor.

Images