Cavity pipe on water tank inner container and heat pipe used in cooperation with cavity pipe

Abstract

The utility model discloses a cavity tube on the inner container of water tank and the heat pipe matched with the cavity tube for use, the water tank comprises a shell, a heat preservation layer and the inner container, the bottom wall of the inner container is fixedly connected with a plurality of uniformly distributed cavity tube heat pipe type flat-plate solar heat collector, the flat-plate solar heat collector comprises a plurality of heat pipes in one-to-one correspondence with the cavity tubes, and each heat pipe comprises an evaporation end and a condensation end. A conical cavity is arranged in the cavity pipe, the small-diameter end of the conical cavity is arranged in the inner container, the large-diameter end of the conical cavity extends to the outside of the inner container, external threads are arranged on the periphery of the end portion of the large-diameter end, and the end portion of the condensation end of the heat pipe is arranged to be a conical head matched with the conical cavity. The periphery of the condensation end below the conical head is sleeved with a fastening cap capable of sliding, an internal thread of the fastening cap is connected with an external thread of the large-diameter end of the cavity tube in a locking mode, and the conical head is arranged in the conical cavity in a pressing mode through matching of the internal thread and the external thread. According to the utility model, the condensation ends of the heat pipes can be quickly inserted into the cavity pipes at the same time, so that the installation efficiency and the heat conduction efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar water heaters, in particular to a cavity tube on an inner tank of a water tank and a heat pipe used in conjunction with the cavity tube. Background Art

[0002] The newly appeared heat pipe flat plate solar water heaters on the market mainly include heat pipe flat plate solar collectors, water tanks and brackets. The heat pipe flat plate solar collectors include multiple heat pipe condensation ends extending out of the end face of the collector shell, and multiple blind pipes corresponding to each other are arranged on the inner tank of the water tank. The inner hole of the blind pipe is a cylindrical cavity, and the heat pipe condensation end is a matching cylinder. In order to meet the requirements of heat conduction efficiency, the gap between the outer diameter of the cylindrical cavity of the heat pipe condensation end and the inner diameter of the cylindrical cavity of the inner hole of the blind pipe must be minimized as much as possible. The gap is usually set at about 1mm. Due to the small gap, it is difficult to align the condensation ends of a group of heat pipes into the corresponding blind pipes at the same time, so that the installation is difficult and the installation efficiency of the equipment is reduced. At the same time, due to the gap between the condensation end of the heat pipe and the blind pipe, the contact is not tight, and the gap is only filled with thermal conductive glue for heat conduction, and its thermal conductivity is low, so that the water tank has less heating capacity, which affects the promotion and application of the equipment.

[0003] Therefore, it is necessary to provide a cavity tube on the inner tank of a water tank and a heat pipe used in conjunction with the cavity tube to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies in the prior art and to provide a cavity tube on a water tank inner tank and a heat pipe used in conjunction therewith, which can quickly and efficiently insert the condensing ends of a group of heat pipes into the cavity tube at the same time, thereby improving the heat conduction efficiency and the installation efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A cavity tube on a water tank liner and a heat pipe used therewith, comprising a water tank and a heat pipe type flat-plate solar collector, the water tank comprising an outer shell, an insulation layer and an inner shell, a bottom wall of the inner shell being fixedly connected with a plurality of evenly arranged cavity tubes, the heat pipe type flat-plate solar collector comprising a plurality of heat pipes corresponding one to one with the cavity tubes, the heat pipe comprising an evaporation end and a condensation end, the interior of the cavity tube being arranged as a conical cavity, the small diameter end of the conical cavity being arranged inside the inner shell, the large diameter end of the conical cavity extending to the outside of the inner shell, the outer periphery of the large diameter end being provided with an external thread, the condensation end of the heat pipe being arranged as a conical head matching the conical cavity, the outer periphery of the condensation end below the conical head being sleeved with a slidingly displaced fastening cap, the inner thread of the fastening cap being lockedly connected with the outer thread of the large diameter end of the cavity tube, and the conical head being pressed and arranged in the conical cavity through the cooperation of the inner thread and the outer thread.

[0007] Preferably, the small diameter end of the tapered cavity is closed, and the large diameter end is open.

[0008] Preferably, the small diameter end and the large diameter end of the conical cavity are both opened, the conical head passes through the conical cavity, the top of the conical head extends to the interior of the liner, and a sealing structure is provided between the conical head and the conical cavity.

[0009] Preferably, the sealing structure comprises an annular groove formed on the conical surface of the conical head, and a sealing ring is embedded in the annular groove.

[0010] Preferably, the sealing structure includes a flat seat surrounding the bottom end of the conical head, an annular flat gasket is sleeved on the outer periphery of the conical head, the flat gasket is supported on the top surface of the flat seat, and the outer wall of the conical head and the inner wall of the conical cavity are clamped against the flat gasket.

[0011] Preferably, heat-conductive glue is coated between the conical head and the conical cavity.

[0012] Preferably, the heat pipe type flat-plate solar thermal collectors are divided into two groups or more than two groups, and the condensing ends of the heat pipes of the multiple groups of heat pipe type flat-plate solar thermal collectors are respectively connected to the tapered cavities of the water tank cavity tube.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The plug-in structure is designed as a conical cavity and a conical head, which makes the connection and installation between the heat pipe flat-plate solar collector and the water tank liner simpler and more efficient, improves production efficiency, avoids damage to parts due to misalignment during installation, reduces production costs, and enables the product to be better promoted and applied.

[0015] At the same time, the contact area of ​​the conical surface is larger, which greatly increases the heat conduction efficiency between the condensation end and the cavity tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the installation of the cavity tube and the heat pipe in Example 1;

[0017] Figure 2 is a schematic diagram of the structure when the cavity tube and the heat pipe are plugged in embodiment 1;

[0018] Figure 3 is a schematic diagram of the structure of the lumen tube in Example 1;

[0019] Figure 4 This is a schematic diagram of the structure of a solar water heater using the structure of Example 1;

[0020] Figure 5 is a schematic diagram of the installation of the cavity tube and the heat pipe in Example 2;

[0021] Figure 6is a schematic diagram of the structure of the heat pipe in Example 2;

[0022] Figure 7 is a schematic diagram of the structure of the lumen tube in Example 2;

[0023] Figure 8 is a schematic diagram of the installation of the cavity tube and the heat pipe in Example 3;

[0024] Fig. 9 is a schematic diagram of the structure of the heat pipe in Example 3;

[0025] Among them, 1-shell, 2-insulation layer, 3-liner, 4-cavity tube, 401-conical cavity, 402-external thread, 5-heat pipe flat plate solar collector, 6-heat pipe, 601-conical head, 602-fastening cap, 603-ring groove, 604-flat seat, 7-sealing ring, 8-flat gasket DETAILED DESCRIPTION

[0026] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixed connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0028] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0029] Embodiment 1:

[0030] like Figures 1 to 4As shown, it is the first embodiment of the utility model, a cavity tube on a water tank liner and a heat pipe used in conjunction therewith, including a water tank and multiple groups of heat pipe type flat-plate solar collectors, the water tank includes an outer shell 1, an insulation layer 2 and an inner tank 3, nine cavity tubes 4 arranged evenly are welded and fixed to the bottom wall of the inner tank, the interior of the cavity tube is set as a conical cavity 401, the heat pipe type flat-plate solar collector 5 includes a heat pipe 6 corresponding to the cavity tube one by one, the heat pipe includes an evaporation end and a condensation end, and the small diameter end of the conical cavity is arranged inside the inner tank, The small diameter end is closed, the large diameter end of the tapered cavity extends to the outside of the inner tank, and the large diameter end is open. An external thread 402 is provided on the outer periphery of the large diameter end. The condensing end of the heat pipe is a tapered head 601 that matches the tapered cavity. A sliding fastening cap 602 is provided on the outer periphery of the condensing end below the tapered head. The internal thread of the fastening cap is locked with the external thread of the large diameter end of the cavity tube. The tapered head is pressed and set in the tapered cavity through the cooperation of the internal thread and the external thread. Thermal conductive glue is coated between the tapered head and the tapered cavity.

[0031] The principle and usage of the tapered cavity tube on the inner tank of the water tank and the tapered heat pipe used therewith are as follows: by designing the interior of the cavity tube as a tapered sealing structure that is narrow at the top and wide at the bottom, and then designing the condensation end of the heat pipe as a tapered head that matches the tapered cavity, when workers insert the condensation ends of multiple heat pipes into their corresponding cavity tubes at the same time, there is no need to spend time aligning them one by one, and the condensation ends of the heat pipes can be quickly and accurately plugged into place, and there will be no damage to the condensation ends due to alignment deviation, which not only improves the assembly efficiency, but also effectively reduces the defective rate of the product.

[0032] Embodiment 2:

[0033] like Figures 5 to 7 As shown, it is the second embodiment of the utility model. The difference between this embodiment and embodiment 1 is that the small diameter end and the large diameter end of the conical cavity of this embodiment are both opened, and the top end of the conical head extends to the inside of the inner tank, so that the conical head is in direct contact with the water inside the water tank, thereby improving the heat conduction efficiency, and a sealing structure is provided between the conical head and the conical cavity.

[0034] When the sealing structure is an annular groove 603 opened on the conical surface of the conical head, a sealing ring 7 is embedded in the annular groove to enhance the sealing effect between the conical head and the conical cavity.

[0035] The principle and use method of the conical cavity tube on the water tank inner tank and the conical heat pipe used therewith: on the basis of Example 1, the conical cavity is changed into a through cavity connected at both ends, so that the conical head at the condensation end is directly in contact with the water in the inner tank, further enhancing the heat conduction effect of the condensation end, and utilizing the cooperation of the ring groove and the sealing ring to improve the sealing effect between the conical head and the conical cavity.

[0036] Embodiment 3:

[0037] like Figures 8 to 9 As shown, it is the third embodiment of the utility model. The difference between this embodiment and embodiment 2 is that the sealing structure adopted between the conical head and the conical cavity is a flat seat 604 arranged around the bottom end of the conical head, and an annular flat gasket 8 is sleeved on the outer periphery of the conical head. The flat gasket is supported on the top surface of the flat seat, and the outer wall of the conical head and the inner wall of the conical cavity are clamped against the flat gasket.

[0038] The principle and use method of the conical cavity tube on the water tank inner tank and the conical heat pipe used therewith: Compared with Example 2, another sealing structure between the conical head and the conical cavity is provided, which enriches the product structure and gives users more choices.

[0039] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A cavity tube on a water tank liner and a heat pipe used in conjunction therewith, comprising a water tank and a heat pipe type flat-plate solar collector, wherein the water tank comprises an outer shell, a heat-insulating layer and an inner liner, wherein the bottom wall of the inner liner is fixedly connected with a plurality of cavity tubes arranged evenly, wherein the heat pipe type flat-plate solar collector comprises a plurality of heat pipes corresponding to the cavity tubes one by one, wherein the heat pipe comprises an evaporation end and a condensation end, and wherein: The interior of the cavity tube is set as a conical cavity, the small diameter end of the conical cavity is set inside the inner tank, and the large diameter end of the conical cavity extends to the outside of the inner tank. The outer periphery of the large diameter end is provided with an external thread, and the condensing end of the heat pipe is set as a conical head matched with the conical cavity. The outer periphery of the condensing end below the conical head is provided with a sliding fastening cap, and the internal thread of the fastening cap is locked and connected with the external thread of the large diameter end of the cavity tube. The conical head is pressed and set in the conical cavity through the cooperation of the internal thread and the external thread.

2. The cavity tube on the inner tank of a water tank and the heat pipe used therewith according to claim 1, characterized in that: The small diameter end of the tapered cavity is closed, and the large diameter end is open.

3. The cavity tube on the inner tank of a water tank and the heat pipe used therewith according to claim 1, characterized in that: The small diameter end and the large diameter end of the conical cavity are both opened, the conical head passes through the conical cavity, the top of the conical head extends to the interior of the liner, and a sealing structure is provided between the conical head and the conical cavity.

4. The cavity tube on the inner tank of a water tank and the heat pipe used therewith according to claim 3, characterized in that: The sealing structure comprises an annular groove formed on the conical surface of the conical head, and a sealing ring is embedded in the annular groove.

5. The cavity tube on the inner tank of a water tank and the heat pipe used therewith according to claim 3, characterized in that: The sealing structure comprises a flat seat surrounding the bottom end of the conical head, an annular flat pad is sleeved on the outer periphery of the conical head, the flat pad is supported on the top surface of the flat seat, and the outer wall of the conical head and the inner wall of the conical cavity are clamped against the flat pad.

6. The cavity tube on the inner tank of a water tank and the heat pipe used therewith according to claim 1, characterized in that: Heat-conducting glue is coated between the conical head and the conical cavity.

7. The cavity tube on the inner tank of a water tank and the heat pipe used therewith according to claim 1, characterized in that: The heat pipe type flat plate solar collectors are divided into two groups or more than two groups, and the condensing ends of the heat pipes of the multiple groups of heat pipe type flat plate solar collectors are respectively connected to the tapered cavities of the water tank cavity tube.

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