CN210570203U - High-efficiency heat exchange tube for ground source heat pump central air conditioner - Google Patents
High-efficiency heat exchange tube for ground source heat pump central air conditioner Download PDFInfo
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- CN210570203U CN210570203U CN201921451774.0U CN201921451774U CN210570203U CN 210570203 U CN210570203 U CN 210570203U CN 201921451774 U CN201921451774 U CN 201921451774U CN 210570203 U CN210570203 U CN 210570203U
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Abstract
The utility model relates to a ground source heat pump central air conditioning is with high-efficient heat exchange tube, including a pipe body, the one end an organic whole of body is connected with the plug, the plug cross-section is the spiral, the body is kept away from seted up on the inner wall of the one end of plug with adjacent on the body the first spiral line of the outer wall spiral complex of plug, it is located to encircle on the inner wall of plug to be fixed with the straight shape inner fin of first spiral line spiral concave part. The utility model discloses have the effect that improves heat exchange tube junction heat exchange efficiency.
Description
Technical Field
The utility model belongs to the technical field of the technique and specifically relates to a ground source heat pump central air conditioning is with high-efficient heat exchange tube is related to.
Background
The ground source heat pump central air conditioner mainly comprises three parts: the system comprises an outdoor ground source heat exchange system, a ground source heat pump host system and an indoor tail end system. The ground source heat pump central air conditioner adopts an energy-saving and environment-friendly ground source heat pump system, the ground source heat pump system is a device for transferring low-grade heat energy to high-grade heat energy by inputting a small amount of high-grade energy from a land shallow layer energy source, and a cold and heat source of the ground source heat pump system generally adopts a buried pipe type soil source heat exchanger which is flexible to install and easy to control, and is also called a soil coupling type heat exchanger. Usually, the ground source heat pump system consumes 1kWh of energy, and a user can obtain heat or cold above 4.4 kWh.
The heat exchange tube is used as a core heat exchange element of the heat exchanger, and has very important significance for improving the efficiency of the heat exchanger and reducing the cost. The heat exchange tube works in severe environments such as high temperature, high pressure, corrosive gas and the like for a long time, has higher requirements on corrosion resistance and stability, and usually selects copper and aluminum as materials of the heat exchange tube in consideration of the difficulty degree of a production method and a processing technology. Although the price of the aluminum pipe is lower than that of the copper pipe, the aluminum pipe has the defects of poor welding processing manufacturability, poor heat exchange performance, easiness in being damaged by a metal expansion head during pipe expansion and the like, and is not widely used. In recent years, with the increase of copper price, the price of stainless steel is greatly reduced, the production process of the stainless steel pipe is continuously improved, and the stainless steel heat exchange pipe is used as a substitute material with more excellent performance and lower cost, so that the stainless steel heat exchange pipe has wide application prospect.
At present, a chinese utility model patent with publication number CN208778967U discloses a heat exchange tube connection joint and a silicon carbide heat exchange tube, wherein the heat exchange tube connection joint comprises a shell, a guide, a sealing member and a locking assembly; the shell is in a cylindrical shape with two open ends, and the two ends are both connecting ends; the guide piece is arranged on the connecting end and used for accurately and quickly inserting the heat exchange tube into the shell; the sealing element and the locking assembly are both arranged on the inner wall surface of the shell; the locking assembly is used for locking the heat exchange tube.
The above prior art solutions have the following drawbacks: above-mentioned scheme adopts guide, sealing member and locking Assembly to connect two heat exchange tubes, because the heat exchange tube pipe wall is smooth, and the junction sets up the wall thickness that multiple subassembly leads to the junction and increases, and smooth pipeline and the wall thickness that increases lead to the heat exchange efficiency reduction of junction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ground source heat pump central air conditioning is with high-efficient heat exchange tube, it has the effect that improves heat exchange tube junction heat exchange efficiency.
The above technical purpose of the present invention can be achieved by the following technical solutions: ground source heat pump central air conditioning is with high-efficient heat exchange tube, including the body, the one end an organic whole of body is connected with the plug, the plug cross-section is the spiral, the body is kept away from set up on the inner wall of the one end of plug with adjacent on the body the outer wall spiral complex of plug first spiral line, it is located to encircle on the inner wall of plug straight inner fin of first spiral line spiral concave part to be fixed with.
By adopting the technical scheme, the plug is arranged to be spiral, the spiral design increases the heat transfer area compared with the smooth heat exchange tube, the first spiral threads are arranged on the inner wall of the tube body far away from the plug, and the heat transfer area on the inner wall of the tube body is also increased, so that the heat transfer area at the joint of the adjacent heat exchange tubes is increased; the plug is in spiral fit with the adjacent pipe body, so that the thickness of the joint is reduced under the condition of ensuring stable connection; the straight inner fin is fixed on the inner wall of the plug in a surrounding manner and used for increasing the contact area between the fluid flowing through the pipe body connection part and the pipe body so as to improve the heat conduction effect; the spiral connection of plug and first spiral line and the setting of straight shape inner fin have improved the heat exchange efficiency of heat exchange tube junction.
The utility model discloses further set up to: the plug is kept away from the cover is established and is fixed with special-shaped circle on the outer wall of the one end of body, the body is kept away from set up on the inner wall of plug with adjacent on the body special-shaped circle joint complex dysmorphism groove.
Through adopting above-mentioned technical scheme, when the plug spiral inserts in the inner wall of adjacent body, special-shaped circle joint to special-shaped groove to seal the junction of plug and body, thereby avoid the fluid in the body to reveal.
The utility model discloses further set up to: the special-shaped ring is a polytetrafluoroethylene special-shaped ring.
By adopting the technical scheme, the polytetrafluoroethylene has good high-temperature resistance, and the high-temperature resistance avoids the special-shaped ring from melting at high temperature; the friction coefficient of the polytetrafluoroethylene is low, and the abrasion degree of the special-shaped ring is reduced in the process that the special-shaped ring rotates to the pipe body along with the plug, so that the sealing performance of the special-shaped ring is ensured.
The utility model discloses further set up to: the cross sections of the special-shaped ring and the special-shaped groove are both trapezoidal.
Through adopting above-mentioned technical scheme, set up the cross-section in dysmorphism groove into trapezoidal, trapezoidal design makes dysmorphism groove entrance narrower and inside width increase gradually, because polytetrafluoroethylene has certain elasticity, when dysmorphism circle just got into the dysmorphism groove, dysmorphism circle is by extrusion deformation, fills in the dysmorphism inslot back completely when dysmorphism circle, and dysmorphism circle resumes prototype joint in the dysmorphism inslot to improve the stability that both connect, with this sealed effect of improvement dysmorphism circle and dysmorphism groove.
The utility model discloses further set up to: the end face of the pipe body, which is close to the plug, is provided with a sealing groove, and the end face of the pipe body, which is far away from the plug, is integrally connected with a sealing ring which is in clamping fit with the adjacent sealing groove on the pipe body.
Through adopting above-mentioned technical scheme, when the plug was pegged graft to adjacent body inside, sealing washer and seal groove joint cooperation to carry out secondary seal to the junction of body and plug, with this sealed effect that further improves the junction, avoid the junction to take place the weeping phenomenon.
The utility model discloses further set up to: and staggered-tooth-shaped outer fins distributed along the axial direction of the tube body are fixed on the outer wall of the tube body in a surrounding manner.
By adopting the technical scheme, the contact area between the outer wall of the tube body and the external fluid of the tube body is increased due to the arrangement of the outer fins, so that the heat transfer efficiency of the tube body is improved, turbulent flow is formed when the fluid flows through the outer fins due to the design of the staggered tooth shape, the heat transfer resistance is reduced, and the heat exchange efficiency of the tube body is improved.
The utility model discloses further set up to: a plurality of bulges distributed along the length direction of the pipe body are fixed on the inner wall of the pipe body in a surrounding manner.
By adopting the technical scheme, the flow path of the fluid is disturbed by the arrangement of the protrusions, fluid disturbance is formed in the tube body, and heat exchange thermal resistance is reduced, so that the heat exchange efficiency inside and outside the tube body is improved.
The utility model discloses further set up to: the inner wall of the pipe body is coated with a copper-nickel alloy heat transfer layer.
Through adopting above-mentioned technical scheme, the copper-nickel alloy not only has the strong heat conduction effect of copper, still has the high temperature resistance performance of nickel, coats the copper-nickel alloy at the inner wall of body to this heat transfer performance that improves the body inner wall.
To sum up, the utility model discloses a beneficial technological effect does:
1. the spiral connection of the plug and the first spiral threads and the arrangement of the straight inner fins improve the heat exchange efficiency at the connection part of the heat exchange tube;
2. the special-shaped ring is clamped into the special-shaped groove, so that the joint of the plug and the pipe body is sealed, and fluid in the pipe body is prevented from leaking;
3. the staggered tooth-shaped outer fins enable fluid to form turbulent flow when flowing through the outer fins, so that heat transfer resistance is reduced, and heat exchange efficiency of the tube body is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present embodiment;
fig. 2 is a schematic structural diagram of the staggered tooth-shaped outer fin in the embodiment.
In the figure: 1. a pipe body; 11. a first spiral thread; 12. a special-shaped groove; 13. a sealing groove; 14. a seal ring; 15. staggered tooth-shaped outer fins; 16. a protrusion; 17. a copper-nickel alloy heat transfer layer; 2. a plug; 21. a straight inner fin; 22. and (5) forming a special-shaped ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, do the utility model discloses a ground source heat pump central air conditioning is with high-efficient heat exchange tube, including body 1. The pipe body 1 is a circular cylindrical structure and is usually arranged in a heat exchanger, fluid with higher temperature is introduced into the pipe body 1, fluid with lower temperature is introduced into the heat exchanger, and heat exchange is carried out between high-temperature fluid and low-temperature fluid, so that the purpose of heat exchange is realized.
Referring to fig. 1, one end of a pipe body 1 is integrally connected with a plug 2, the cross section of the plug 2 is spiral, and spiral threads on the plug 2 are distributed around the plug 2 along the length direction of the plug 2; the spiral design increases the heat transfer area compared to a smooth heat exchange tube. First spiral line 11 has been seted up on the inner wall of body 1, makes the heat transfer area increase of body 1 inner wall, and first spiral line 11 is located body 1 and keeps away from the one end of plug 2 to with the plug 2 screwed connection on the adjacent body 1.
Referring to fig. 1, a special-shaped ring 22 is fixedly sleeved on the end of the plug 2, the special-shaped ring 22 is positioned at one end of the plug 2 far away from the pipe body 1, and the section of the special-shaped ring 22 is trapezoidal; the special-shaped ring 22 is made of polytetrafluoroethylene, and the polytetrafluoroethylene has good high-temperature resistance, so that the special-shaped ring 22 is prevented from being melted at high temperature due to the high-temperature resistance; the friction coefficient of the polytetrafluoroethylene is low, and in the process that the special-shaped ring 22 rotates to the pipe body 1 along with the plug 2, the abrasion degree of the special-shaped ring 22 with the low friction coefficient is reduced, so that the sealing performance of the special-shaped ring 22 is ensured. The inner wall of the pipe body 1 is provided with a special-shaped groove 12, and the special-shaped groove 12 is positioned at one end of the pipe body 1 far away from the plug 2; the special-shaped groove 12 is arranged around the pipe body 1 and is clamped and matched with the special-shaped ring 22 on the plug 2 of the adjacent pipe body 1; the cross-section of dysmorphism groove 12 is trapezoidal, trapezoidal design makes the narrower and inside width of dysmorphism groove 12 entrance increase gradually, because polytetrafluoroethylene has certain elasticity, when dysmorphism circle 22 just got into dysmorphism groove 12, dysmorphism circle 22 is by extrusion deformation, after dysmorphism circle 22 fills in dysmorphism groove 12 completely, dysmorphism circle 22 resumes prototype joint in dysmorphism groove 12, thereby improve the stability that both are connected, with this sealed effect of improving dysmorphism circle 22 and dysmorphism groove 12.
Referring to fig. 1, the inner wall of the plug 2 is integrally connected with a straight inner fin 21, and the straight inner fin 21 is arranged around the inner wall of the plug 2 and distributed along the length direction of the plug 2; the straight inner fin 21 is located at a position where the first spiral pattern 11 is recessed toward the outside of the tube body 1, and is used to increase the contact area between the fluid flowing through the joint of the tube body 1 and the tube body 1, so as to improve the heat conduction effect.
Referring to fig. 1, a sealing groove 13 is formed in an end face of one end of the pipe body 1, and a cross section of the sealing groove 13 is circular, is located at one end of the pipe body 1 close to the end, and surrounds the plug 2. The end face of one end of the pipe body 1, which is far away from the plug 2, is integrally connected with a sealing ring 14, and the sealing ring 14 is made of rubber and has good elasticity; the sealing ring 14 is snap-fitted into the sealing groove 13. The arrangement of the seal groove 13 and the seal ring 14 is used for further improving the sealing performance of the joint of the plug 2 and the adjacent pipe body 1 and avoiding fluid leakage.
Referring to fig. 1 and 2, the outer wall of the tube body 1 is integrally connected with staggered tooth-shaped outer fins 15, and the staggered tooth-shaped outer fins 15 are arranged around the tube body 1 and distributed along the length direction of the tube body 1. The arrangement of the outer fins increases the contact area between the outer wall of the tube body 1 and the fluid outside the tube body 1, so that the heat transfer efficiency of the tube body 1 is improved, the design of the staggered teeth enables the fluid to form turbulent flow when flowing through the outer fins, the heat transfer resistance is reduced, and the heat exchange efficiency of the tube body 1 is improved.
Referring to fig. 1, a plurality of protrusions 16 are fixed around the inner wall of the tube 1, and the protrusions 16 are distributed along the length direction of the tube 1. The arrangement of the bulge 16 disturbs the flow path of the fluid, forms fluid disturbance in the tube body 1 and reduces heat exchange resistance, thereby improving the heat exchange efficiency inside and outside the tube body 1.
Referring to fig. 1, the inner wall of a pipe body 1 is coated with a copper-nickel alloy heat transfer layer 17. The copper-nickel alloy not only has the strong heat conduction effect of copper, but also has the high temperature resistance of nickel, and the copper-nickel alloy is coated on the inner wall of the pipe body 1, so that the heat transfer performance of the inner wall of the pipe body 1 is improved.
The implementation principle of the embodiment is as follows: the plug 2 is in spiral fit with the adjacent pipe body 1, so that the thickness of a joint is reduced under the condition of ensuring stable connection, the plug 2 is arranged to be spiral, the first spiral threads 11 are arranged at the joint between the inside of the pipe body 1 and the plug 2, and the heat exchange area of the joint is increased due to the design of the plug 2 and the arrangement of the first spiral threads 11, so that the heat exchange efficiency of the joint is improved; the flat inner fin 21 is fixed on the inner wall of the plug 2 in a surrounding manner, and is used for increasing the contact area between the fluid flowing through the joint of the tube body 1 and the tube body 1 so as to further improve the heat conduction effect.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. Ground source heat pump central air conditioning is with high-efficient heat exchange tube, including body (1), its characterized in that: one end an organic whole of body (1) is connected with plug (2), plug (2) cross-section is the spiral, body (1) is kept away from set up on the inner wall of the one end of plug (2) with adjacent body (1) on the outer wall spiral complex first spiral line (11) of plug (2), it is located to encircle on the inner wall of plug (2) straight shape inner fin (21) of first spiral line (11) spiro union part to be fixed with.
2. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 1, wherein: plug (2) are kept away from the cover is established and is fixed with special-shaped circle (22) on the outer wall of the one end of body (1), body (1) are kept away from set up on the inner wall of plug (2) with adjacent body (1) on special-shaped circle (22) joint complex special-shaped groove (12).
3. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 2, wherein: the special-shaped ring (22) is a polytetrafluoroethylene special-shaped ring (22).
4. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 2, wherein: the sections of the special-shaped ring (22) and the special-shaped groove (12) are both trapezoidal.
5. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 1, wherein: seal groove (13) have been seted up to body (1) near the terminal surface of plug (2), body (1) is kept away from the terminal surface an organic whole of plug (2) is connected with adjacent body (1) on seal groove (13) joint complex sealing washer (14).
6. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 1, wherein: the outer wall of the tube body (1) is fixedly provided with staggered-tooth-shaped outer fins (15) distributed along the axial direction of the tube body (1) in a surrounding manner.
7. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 1, wherein: a plurality of bulges (16) distributed along the length direction of the pipe body (1) are fixed on the inner wall of the pipe body (1) in a surrounding manner.
8. The high-efficiency heat exchange tube for the ground source heat pump central air conditioner as claimed in claim 1, wherein: the inner wall of the pipe body (1) is coated with a copper-nickel alloy heat transfer layer (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921451774.0U CN210570203U (en) | 2019-09-02 | 2019-09-02 | High-efficiency heat exchange tube for ground source heat pump central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921451774.0U CN210570203U (en) | 2019-09-02 | 2019-09-02 | High-efficiency heat exchange tube for ground source heat pump central air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210570203U true CN210570203U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921451774.0U Active CN210570203U (en) | 2019-09-02 | 2019-09-02 | High-efficiency heat exchange tube for ground source heat pump central air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN210570203U (en) |
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2019
- 2019-09-02 CN CN201921451774.0U patent/CN210570203U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230000 room d1114, block D, Ligang Yinhe Plaza, Ziyun Road, Baohe District, Hefei City, Anhui Province Patentee after: Anhui Zhongtong Construction Group Co.,Ltd. Address before: 230000 room d1114, block D, Ligang Yinhe Plaza, Ziyun Road, Baohe District, Hefei City, Anhui Province Patentee before: Anhui Zhongtong Environmental Engineering Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |