Efficient anti-corrosion heat exchange tube structure for heat pump unit

Abstract

The utility model discloses an efficient anti-corrosion heat exchange tube structure for a heat pump unit, which comprises a heat exchange tube body, the heat exchange tube body is buried in underground soil, an inner anti-corrosion barrier is arranged on the outer side of the circumference of the heat exchange tube body, and an outer anti-corrosion barrier is arranged on the outer side of the inner anti-corrosion barrier. The isolation pieces on the inner anti-corrosion barrier are fixedly arranged on the circumferential outer wall of the heat exchange tube body, the back portions of the isolation pieces are provided with rear side faces, the first heat exchange pieces on the outer anti-corrosion barrier are fixedly arranged on the circumferential outer side of the heat exchange tube body, and the second heat exchange pieces are arranged on one sides of the first heat exchange pieces. According to the efficient anti-corrosion heat exchange tube structure for the heat pump unit, the first anti-corrosion mechanism and the second anti-corrosion mechanism cover the outer side of the periphery of the heat exchange tube body in a layered mode, corrosion caused by the fact that corrosive soil and water in the ground directly make contact with the outer side of the periphery of the heat exchange tube body can be avoided, and the service life of the heat exchange tube body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of heat pump units, specifically a high-efficiency corrosion-resistant heat exchange tube structure for heat pump units. Background Technology

[0002] Heat exchange tubes are an important component of heat pump units. They are one of the elements of a heat exchanger used for the exchange of heat between two media. They have high thermal conductivity and good isothermal properties. They are devices that can quickly transfer heat energy from one point to another with almost no heat loss. Therefore, they are called heat transfer superconductors. Their thermal conductivity is thousands of times that of copper. In order to better install and fix the heat exchange tubes, appropriate fixing structures are used for auxiliary installation and fixation.

[0003] The working process of the heat exchanger tubes in a ground source heat pump unit is as follows: In heating mode, a circulating water pump drives the circulating fluid (usually water or antifreeze) in the buried pipe (outdoor heat exchanger tube) to flow through the underground soil. The soil temperature is relatively stable and higher than the outdoor air temperature in winter. The circulating fluid exchanges heat with the soil through the outdoor heat exchanger tube, absorbing heat from the soil and increasing its temperature. The high-temperature circulating fluid returning from the outdoor heat exchanger tube enters the heat exchanger tube of the indoor heat exchanger. In the indoor heat exchanger, the circulating fluid transfers heat to the indoor air or water in the heating system through the heat exchanger tube, raising the indoor temperature and lowering the temperature of the circulating fluid itself. It then returns to the outdoor heat exchanger tube (buried pipe) to continue absorbing heat from the soil, forming a cycle.

[0004] Outdoor heat exchange pipes (buried pipes) are installed underground. Soil components with excessively high or low pH values ​​or water quality can corrode the outer wall of the heat exchange pipes. Corrosion will make the outer wall of the heat exchange pipes rough, and over time, it will easily lead to leakage and damage. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency corrosion-resistant heat exchange tube structure for heat pump units, so as to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, a high-efficiency anti-corrosion heat exchanger tube structure for a heat pump unit is provided, including a heat exchanger tube body buried in the underground soil. An inner anti-corrosion barrier is provided on the outer circumference of the heat exchanger tube body, and an outer anti-corrosion barrier is provided on the outer side of the inner anti-corrosion barrier. An isolation plate on the inner anti-corrosion barrier is fixedly installed on the outer circumference of the heat exchanger tube body, and a rear side is opened on the back of the isolation plate. A first heat exchange plate on the outer anti-corrosion barrier is fixedly installed on the outer circumference of the heat exchanger tube body, and a second heat exchange plate is provided on one side of the first heat exchange plate.

[0007] Preferably, the internal corrosion protection barrier includes isolation plates, a rear side surface, a heat exchange surface, and a buffer groove. Ten sets of isolation plates are evenly distributed along the outer circumference of the heat exchange tube body, and the distance between two adjacent sets of isolation plates is consistent.

[0008] Preferably, the ten sets of isolation plates are centrally symmetrical about the central axis of the heat exchange tube body, and the cross-section of the isolation plates is trapezoidal. The ten sets of isolation plates are combined together to form a second anti-corrosion mechanism covering the outer circumference of the heat exchange tube body.

[0009] Preferably, each of the ten sets of isolation plates has a heat exchange surface, and the surface of the heat exchange surface has multiple sets of buffer grooves, with the distance between two adjacent sets of buffer grooves being the same, and the depth of the buffer groove being equal to half the height of the isolation plate.

[0010] Preferably, the external corrosion barrier includes a first heat exchange plate, a second heat exchange plate, an arc-shaped surface, and an installation area. The first and second heat exchange plates are evenly arranged in multiple groups, and an installation area is provided between the first and second heat exchange plates. The surfaces of both the first and second heat exchange plates are provided with arc-shaped surfaces.

[0011] Preferably, an isolation plate is fixedly installed inside the installation area. The first heat exchange plate and the second heat exchange plate are both arc-shaped structures made of stainless steel. The heat exchange tube body is buried in the underground soil and is supported and fixed by multiple sets of first heat exchange plates and second heat exchange plates.

[0012] Preferably, multiple sets of first heat exchange plates and second heat exchange plates are centrally symmetrically distributed along the outer circumference of the heat exchange tube body, and multiple sets of first heat exchange plates and second heat exchange plates cover the outer side of the heat exchange tube body to form a first anti-corrosion mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, when the heat exchange tube body is buried in the underground soil, it is equipped with an inner anti-corrosion barrier and an outer anti-corrosion barrier. Ten sets of isolation plates are combined to form a second anti-corrosion mechanism covering the outer circumference of the heat exchange tube body. Multiple sets of first and second heat exchange plates cover the outer side of the heat exchange tube body to form a first anti-corrosion mechanism. The first and second anti-corrosion mechanisms are layered and cover the outer circumference of the heat exchange tube body, which can prevent corrosive soil and water in the ground from directly contacting the outer circumference of the heat exchange tube body and causing corrosion, thereby improving the service life of the heat exchange tube body.

[0015] 2. This utility model uses multiple sets of first and second heat exchange plates on the outside of the heat exchange tube body buried in the soil. The multiple sets of arc-shaped heat exchange plates can significantly increase the contact area between the heat exchange tube and the soil, making heat transfer more complete. More soil area participates in heat exchange, which can absorb more heat from the soil and improve the heating effect. The arc-shaped heat exchange plates can enhance the overall structural strength of the heat exchange tube, making it more stable in the soil and better able to resist the effects of external forces such as soil pressure and geological movement, reducing the risk of heat exchange tube rupture and deformation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a schematic diagram of a heat exchanger tube;

[0018] Figure 2 A schematic diagram illustrating the installation of an internal and external anti-corrosion barrier on the heat exchanger tube body;

[0019] Figure 3 for Figure 2 Rear view;

[0020] Figure 4 for Figure 2 A sectional view;

[0021] Figure 5 A schematic diagram of the installation structure of the internal anti-corrosion barrier and the heat exchange tube body;

[0022] Figure 6 This is a schematic diagram of the installation structure of the external anti-corrosion barrier and the heat exchange tube body.

[0023] The following are the labels in the diagram: 1. Heat exchange tube body; 2. Inner anti-corrosion barrier; 21. Isolation plate; 22. Rear side; 23. Heat exchange surface; 24. Buffer groove; 3. Outer anti-corrosion barrier; 31. First heat exchange plate; 32. Second heat exchange plate; 33. Arc-shaped surface; 34. Installation area. Detailed Implementation

[0024] 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.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Please see Figure 1-6 This utility model provides a high-efficiency anti-corrosion heat exchanger tube structure for a heat pump unit, including a heat exchanger tube body 1, which is buried in the soil. An inner anti-corrosion barrier 2 is provided on the outer circumference of the heat exchanger tube body 1, and an outer anti-corrosion barrier 3 is provided on the outer side of the inner anti-corrosion barrier 2. An isolation plate 21 on the inner anti-corrosion barrier 2 is fixedly installed on the outer circumference of the heat exchanger tube body 1. A rear side 22 is opened on the back of the isolation plate 21. A first heat exchange plate 31 on the outer anti-corrosion barrier 3 is fixedly installed on the outer circumference of the heat exchanger tube body 1, and a second heat exchange plate 32 is provided on one side of the first heat exchange plate 31.

[0029] Working principle: In actual use, the heat exchange tube body 1 is buried in the soil underground. In winter, the circulating water pump drives the circulating fluid inside the heat exchange tube body 1 to flow in the underground soil. The soil temperature is relatively stable and higher than the outdoor air temperature in winter. The circulating fluid exchanges heat with the soil through the heat exchange tube body 1, absorbing heat from the soil and raising its temperature, thus laying the foundation for increasing the indoor temperature. When the heat exchange tube body 1 is buried in the underground soil, it is equipped with an inner anti-corrosion barrier 2 and an outer anti-corrosion barrier 3. Ten sets of isolation plates 21 are combined to form a second anti-corrosion mechanism covering the circular area of ​​the heat exchange tube body 1. The outer periphery of the heat exchange tube body 1 is covered by multiple sets of first heat exchange fins 31 and second heat exchange fins 32, forming a first anti-corrosion mechanism. These first and second anti-corrosion mechanisms are layered and cover the outer periphery of the heat exchange tube body 1, preventing corrosive soil and water from directly contacting and corroding the outer periphery of the heat exchange tube body 1, thus improving its service life. To further improve the service life of the heat exchange tube body 1, the material of the heat exchange tube body 1 can preferably be stainless steel or a copper-nickel alloy. When the heat exchange tube body 1 is exchanging heat underground, the multiple sets of first heat exchange fins 31 and second heat exchange fins 32 on the outer periphery of the heat exchange tube body 1... Buried in the soil, multiple sets of arc-shaped heat exchange fins significantly increase the contact area between the heat exchange tubes and the soil, allowing for more efficient heat transfer. With more soil area participating in heat exchange, more heat can be absorbed from the soil, improving heating efficiency. The arc structure makes the heat conduction path between the soil and the heat exchange tubes more complex and tortuous, extending the heat transfer path and increasing the heat exchange time, which facilitates more efficient heat transfer from the soil to the medium inside the heat exchange tubes. The arc-shaped heat exchange fins enhance the overall structural strength of the heat exchange tubes, making them more stable in the soil and better able to resist external forces such as soil pressure and geological movements, reducing the risk of heat exchange tube rupture and deformation, and improving the overall system performance. This system improves reliability and service life; it distributes the pressure of the soil on the heat exchange tubes to each heat exchange plate, reducing stress concentration on the heat exchange tube body and preventing damage to the tubes due to excessive stress, thus ensuring long-term stable operation of the system; at the same time, multiple sets of isolation plates 21 are evenly arranged on the outer circumference of the heat exchange tube body 1, and multiple sets of buffer grooves 24 are evenly opened on the surface of the isolation plates 21; the setting of multiple sets of buffer grooves 24 increases the contact area between the heat exchange tubes and the soil, allowing more soil to exchange heat with the heat exchange tubes, just like adding many tiny heat exchange tentacles, which can more fully absorb the heat in the soil, thereby improving the heating efficiency of the heat pump unit.

[0030] As a preferred embodiment, the internal corrosion barrier 2 includes an isolation plate 21, a rear side surface 22, a heat exchange surface 23, and a buffer groove 24. The isolation plates 21 are evenly arranged in ten groups along the outer circumference of the heat exchange tube body 1, and the distance between two adjacent groups of isolation plates 21 is consistent.

[0031] The ten sets of isolation plates 21 are centrally symmetrical about the central axis of the heat exchange tube body 1. The cross-section of the isolation plates 21 is trapezoidal. The ten sets of isolation plates 21 are combined together to form a second anti-corrosion mechanism covering the outer circumference of the heat exchange tube body 1.

[0032] In a preferred embodiment, each of the ten sets of isolation plates 21 has a heat exchange surface 23. The surface of the heat exchange surface 23 has multiple sets of buffer grooves 24, and the distance between two adjacent sets of buffer grooves 24 is the same. The depth of the buffer groove 24 is equal to half the height of the isolation plate 21.

[0033] The external anti-corrosion barrier 3 includes a first heat exchange plate 31, a second heat exchange plate 32, an arc-shaped surface 33, and an installation area 34. The first heat exchange plate 31 and the second heat exchange plate 32 are evenly arranged in multiple groups, and the installation area 34 is provided between the first heat exchange plate 31 and the second heat exchange plate 32. The surfaces of the first heat exchange plate 31 and the second heat exchange plate 32 are both provided with an arc-shaped surface 33.

[0034] An isolation plate 21 is fixedly installed inside the installation area 34. The first heat exchange plate 31 and the second heat exchange plate 32 are both arc-shaped structures made of stainless steel. The heat exchange tube body 1 is buried in the underground soil and is supported and fixed by multiple sets of first heat exchange plates 31 and second heat exchange plates 32.

[0035] In a preferred embodiment, multiple sets of first heat exchange plates 31 and second heat exchange plates 32 are centrally symmetrically distributed along the outer circumference of the heat exchange tube body 1, and the multiple sets of first heat exchange plates 31 and second heat exchange plates 32 cover the outer side of the heat exchange tube body 1 to form a first anti-corrosion mechanism.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit, comprising a heat exchange tube body (1), characterized in that: The heat exchange pipe body (1) is embedded in the ground soil, the inner anticorrosion barrier (2) is arranged on the outer side of the heat exchange pipe body (1), the outer anticorrosion barrier (3) is arranged on the outer side of the inner anticorrosion barrier (2), the isolation sheet (21) on the inner anticorrosion barrier (2) is fixedly arranged on the outer wall in the circumference of the heat exchange pipe body (1), the back of the isolation sheet (21) is provided with a back side (22), the first heat exchange sheet (31) on the outer anticorrosion barrier (3) is fixedly arranged on the outer side of the heat exchange pipe body (1), and the second heat exchange sheet (32) is arranged on one side of the first heat exchange sheet (31).

2. The high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit according to claim 1, characterized in that: The inner anticorrosion barrier (2) comprises an isolation sheet (21), a back side (22), a heat exchange surface (23) and a buffer groove (24), the isolation sheet (21) is uniformly arranged in ten groups along the outer wall in the circumference of the heat exchange pipe body (1), and the distance between the adjacent two groups of isolation sheets (21) is consistent.

3. The high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit according to claim 2, characterized in that: The ten groups of isolation sheets (21) are symmetrically arranged about the central axis of the heat exchange pipe body (1), the cross section of the isolation sheet (21) is arranged in a trapezoidal shape, and the ten groups of isolation sheets (21) are combined to form a second anticorrosion mechanism covering the outer side of the heat exchange pipe body (1).

4. The high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit according to claim 3, characterized in that: The surface of the ten groups of isolation sheets (21) is provided with a heat exchange surface (23), the surface of the heat exchange surface (23) is provided with a plurality of buffer grooves (24), the distance between the adjacent two groups of buffer grooves (24) is consistent, and the depth of the buffer groove (24) is equal to half the height of the isolation sheet (21).

5. The high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit according to claim 1, characterized in that: The outer anticorrosion barrier (3) comprises a first heat exchange sheet (31), a second heat exchange sheet (32), an arc surface (33) and an installation area (34), the first heat exchange sheet (31) and the second heat exchange sheet (32) are uniformly arranged in multiple groups, and the installation area (34) is arranged between the first heat exchange sheet (31) and the second heat exchange sheet (32); the surfaces of the first heat exchange sheet (31) and the second heat exchange sheet (32) are provided with arc surfaces (33).

6. The high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit according to claim 5, characterized in that: The installation area (34) is fixedly provided with an isolation sheet (21), the first heat exchange sheet (31) and the second heat exchange sheet (32) are arc-shaped structures made of stainless steel material, and the heat exchange pipe body (1) is embedded in the ground soil and supported and fixed by the multiple groups of first heat exchange sheets (31) and second heat exchange sheets (32).

7. The high-efficiency corrosion-proof heat exchange tube structure for a heat pump unit according to claim 6, characterized in that: The multiple groups of first heat exchange sheets (31) and second heat exchange sheets (32) are symmetrically distributed along the outer wall in the circumference of the heat exchange pipe body (1), and the multiple groups of first heat exchange sheets (31) and second heat exchange sheets (32) cover the outer side of the heat exchange pipe body (1) to form a first anticorrosion mechanism.

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