A solar heat storage water tank and built-in heat exchanger connection sealing device

Abstract

The utility model relates to sealing device technical field, specifically disclose a kind of solar heat storage water tank and built-in heat exchanger connection sealing device, comprising: heat exchanger pipe, the outer wall of heat exchanger pipe is fixedly connected with connecting short pipe, the outer wall of connecting short pipe is threadedly connected with inner thread connecting pipe, the outer wall of connecting short pipe is threadedly connected with first threaded sleeve, by the connecting short pipe, first threaded sleeve, first sealing rubber ring being set in end cap, it can be by the cooperation between first threaded sleeve and the second thread on connecting short pipe, under the action of first sealing rubber ring, so that sealed more firmly, while the heat exchanger pipe installed in connecting short pipe inner wall, it is installed to water tank mouth, under the action of first locking nut, second locking nut, second sealing rubber ring on the outer wall of inner thread connecting short pipe, the sealing property of water tank mouth is improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, specifically a sealing device for connecting a solar hot water storage tank and an internal heat exchanger. Background Technology

[0002] A sealing device is a device used to ensure a leak-free connection between two or more components. It prevents the leakage of liquids, gases, or solid particles by providing a tight seal, thus ensuring the normal operation and safety of the system. Sealing connections are typically made of materials such as metal, rubber, and plastic, and feature excellent sealing performance, high temperature resistance, and corrosion resistance.

[0003] In the field of solar water heaters, hot water storage tanks are typically made of thin 304 stainless steel, while the matching internal and external finned tube heat exchangers are made of aluminum. When the heat exchanger is installed inside the tank, its two ends protrude from the end caps of the inner tank. Although the hot water storage tank and the heat exchanger are two independent systems, they form N flow channels within the inner tank. Each additional heat exchanger adds one more flow channel. Therefore, the points where the heat exchanger ends protrude from the end caps of the inner tank need to be sealed. However, the hot water storage tank is made of 304 stainless steel, while the heat exchanger is made of aluminum; these different materials present challenges for connection and sealing, making it difficult to achieve a proper connection and seal through welding. To address this, we propose a connection and sealing device for the solar hot water storage tank and the internal heat exchanger. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing device for connecting a solar hot water storage tank and an internal heat exchanger, in order to solve the problem mentioned in the background art that although the hot water storage tank and the heat exchanger are two independent systems, there are N flow channels in the inner tank of the water tank. Each additional heat exchanger adds one more flow channel. Therefore, the end of the heat exchanger protruding from the end cap of the inner tank needs to be sealed. However, the hot water storage tank is made of 304 stainless steel plate, while the heat exchanger is made of aluminum. The different materials pose challenges to the connection and sealing, making it difficult to achieve the connection and sealing of the two by welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solar hot water storage tank and an internal heat exchanger connection sealing device, comprising: a heat exchanger tube, a connecting short pipe fixedly connected to the outer wall of the heat exchanger tube, an internal threaded connecting pipe threaded to the outer wall of the connecting short pipe, and a first threaded sleeve threaded to one side of the connecting short pipe.

[0006] The outer wall of the connecting short pipe is provided with a first thread, and the outer wall of the connecting short pipe is provided with a second thread.

[0007] The outer wall of the internal threaded connecting tube is provided with a third thread, and a second sealing ring is fixedly connected to the outer wall of the internal threaded connecting tube.

[0008] The outer wall of the third thread is fixedly connected to a first locking nut, and the outer wall of the third thread is fixedly connected to a second locking nut.

[0009] The first sealing ring is fixedly connected to one side of the connecting short tube, and the outer wall of the heat exchanger tube is provided with fins.

[0010] The inner wall of the internal threaded connecting pipe is provided with a fourth thread, and the inner wall of the heat exchanger tube is provided with internal fins.

[0011] The outer wall of the heat exchanger tube is chamfered, and the first and second locking nuts are hexagonal in shape.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. By using a connecting short pipe, a first threaded sleeve, and a first sealing ring at the end cap, the end cap can achieve a more secure seal through the fit between the first threaded sleeve and the second thread on the connecting short pipe, and the action of the first sealing ring, thus ensuring the sealing performance at the port. At the same time, the heat exchanger tube installed on the inner wall of the connecting short pipe, when installed at the water tank opening, improves the sealing performance at the water tank opening through the action of the first locking nut, the second locking nut, and the second sealing ring on the outer wall of the internal thread connecting short pipe.

[0014] 2. The inner fins on the inner wall of the heat exchanger tubes increase the contact area between the hot water and the heat exchange tubes, enabling heat to be transferred to the tube wall more efficiently, and then to the heat storage medium outside the tubes. This strengthens the heat exchange process and improves the heat storage efficiency. The outer fins on the outer wall increase the contact area between the heat exchange tubes and the surrounding medium, enabling heat to be transferred from the tube wall to the surrounding medium more quickly, accelerating the heat storage speed and improving the heat storage capacity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an internal sectional view of the present invention;

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal thread connecting tube and the connecting short tube of this utility model.

[0019] In the diagram: 1. Heat exchanger tube; 2. Connecting short tube; 21. First thread; 22. Second thread; 311. Fourth thread; 3. Internal threaded connecting tube; 31. Third thread; 32. Second sealing ring; 33. First locking nut; 34. Second locking nut; 4. First sealing ring; 5. First threaded sleeve; 6. Outer fin; 7. Inner fin. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a sealing device for connecting a solar hot water storage tank and an internal heat exchanger, comprising: a heat exchanger tube 1, a connecting short pipe 2 fixedly connected to the outer wall of the heat exchanger tube 1, an internal threaded connecting pipe 3 threadedly connected to the outer wall of the connecting short pipe 2, a first threaded sleeve 5 threadedly connected to one side of the connecting short pipe 2, a first thread 21 formed on the outer wall of one side of the connecting short pipe 2, a second thread 22 formed on the outer wall of the other side of the connecting short pipe 2, and a third thread 31 formed on the outer wall of the internal threaded connecting pipe 3. The outer wall of the heat exchanger tube 1 is fixedly connected to a second sealing ring 32. The outer wall of the third thread 31 is fixedly connected to a first locking nut 33. The outer wall of the third thread 31 is fixedly connected to a second locking nut 34. The first sealing ring 4 is fixedly connected to one side of the connecting short pipe 2. The outer wall of the heat exchanger tube 1 is provided with outer fins 6. The inner wall of the internal thread connecting pipe 3 is provided with a fourth thread 311. The inner wall of the heat exchanger tube 1 is provided with inner fins 7. The outer wall of the heat exchanger tube 1 is provided with a chamfer. The structure of the first locking nut 33 and the second locking nut 34 is hexagonal.

[0022] During use, the operator places one side of the connecting short pipe 2 onto the end cap, then installs the first sealing ring 4, followed by the first threaded sleeve 5, and tightens it by rotation to seal one side of the connecting short pipe 2. The first sealing ring 4 ensures a more secure seal and guarantees the sealing performance at the port. Simultaneously, the heat exchanger tube 1, which is fixedly connected to the inner wall of the connecting short pipe 2, is installed on one side at the water tank opening. An internal threaded connecting pipe 3 is installed, and a second sealing ring 32 is installed on the outer wall of the internal threaded connecting pipe 3. Then, the first locking nut 33 and the second locking nut 34 are installed and tightened by rotation to seal the water tank opening, thus improving the sealing performance at the water tank opening.

[0023] The inner fins 7 on the inner wall of the heat exchanger tubes increase the contact area between the hot water and the heat exchange tubes, enabling heat to be transferred to the tube wall more efficiently, and then to the heat storage medium outside the tubes. This strengthens the heat exchange process and improves the heat storage efficiency. The outer fins 6 on the outer wall increase the contact area between the heat exchange tubes and the surrounding medium, enabling heat to be transferred from the tube wall to the surrounding medium more quickly, accelerating the heat storage speed and improving the heat storage capacity.

[0024] 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 process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing device for connecting a solar hot water storage tank and an internal heat exchanger, comprising: The heat exchanger tube (1) is characterized in that: a connecting short tube (2) is fixedly connected to the outer wall of the heat exchanger tube (1), an internal thread connecting tube (3) is threaded to the outer wall of the connecting short tube (2), and a first threaded sleeve (5) is threaded to one side of the connecting short tube (2).

2. The sealing device for connecting the solar water storage tank and the internal heat exchanger according to claim 1, characterized in that: The outer wall of one side of the connecting short pipe (2) is provided with a first thread (21), and the outer wall of the other side of the connecting short pipe (2) is provided with a second thread (22).

3. The sealing device for connecting the solar water storage tank and the internal heat exchanger according to claim 2, characterized in that: The outer wall of the inner threaded connecting tube (3) is provided with a third thread (31), and a second sealing ring (32) is fixedly connected to the outer wall of the inner threaded connecting tube (3). The inner wall of the inner threaded connecting tube (3) is provided with a fourth thread (311), and the inner wall of the heat exchanger tube (1) is provided with inner fins (7).

4. The sealing device for connecting the solar water storage tank and the internal heat exchanger according to claim 3, characterized in that: The outer wall of the third thread (31) is fixedly connected to a first locking nut (33), and the outer wall of the third thread (31) is fixedly connected to a second locking nut (34).

5. The sealing device for connecting the solar water storage tank and the internal heat exchanger according to claim 4, characterized in that: The first sealing ring (4) is fixedly connected to one side of the connecting short pipe (2), and the outer wall of the heat exchanger tube (1) is provided with outer fins (6).

6. The sealing device for connecting the solar water storage tank and the internal heat exchanger according to claim 5, characterized in that: The outer wall of the heat exchanger tube (1) is chamfered, and the first locking nut (33) and the second locking nut (34) are hexagonal in shape.

Images