CN216924799U - Water immersion type PE fin single-pass buried heat exchange system - Google Patents
Water immersion type PE fin single-pass buried heat exchange system Download PDFInfo
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- CN216924799U CN216924799U CN202220390909.2U CN202220390909U CN216924799U CN 216924799 U CN216924799 U CN 216924799U CN 202220390909 U CN202220390909 U CN 202220390909U CN 216924799 U CN216924799 U CN 216924799U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 208
- 238000007654 immersion Methods 0.000 title abstract description 7
- 238000004378 air conditioning Methods 0.000 claims abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 241001417523 Plesiopidae Species 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 4
- 239000003673 groundwater Substances 0.000 description 17
- 239000002352 surface water Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000008236 heating water Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The water immersion type PE fin one-way buried heat exchange system comprises an air conditioning well, a water inlet pipe and a fin type heat exchanger, wherein the water inlet pipe and the fin type heat exchanger are vertically arranged in the air conditioning well, silica for burying the water inlet pipe and the fin type heat exchanger is filled in the air conditioning well, the water inlet end at the upper end of the water inlet pipe is connected with the water outlet end of an overground water source heat pump, the water outlet end at the lower end of the water inlet pipe is connected with the water inlet end at the lower end of the fin type heat exchanger, the water outlet end at the upper end of the fin type heat exchanger is connected with a circulating pump through a water outlet pipe, the water outlet end of the circulating pump is connected with the water inlet end of the overground water source heat pump, and the water inlet pipe, the fin type heat exchanger, the circulating pump and the overground water source heat pump form a circulating heat exchange system. According to the utility model, the PE finned tube is used for replacing a common PE tube, so that the heat exchange area is effectively increased, the long heat exchange capacity of a unit tube is greatly improved, the whole heat exchange power is increased and kept static, the economic benefit is greatly improved, and geothermal water can be fully contacted with the PE finned tube.
Description
Technical Field
The utility model relates to the field of geothermal engineering, in particular to a water immersion type PE fin one-way buried heat exchange system.
Background
Geothermal energy is a clean and renewable energy source which can be recycled, and a ground source heat pump system is a new heating, ventilation and air conditioning technology which utilizes geothermal energy and is an international general high-efficiency energy-saving technology. The ground source heat pump system is divided into ground source heat pump systems such as a buried pipe, underground water, surface water and the like, has wide application range, is not limited by underground water and surface water resources, and has wider application prospect. The buried pipe ground source heat pump system generally adopts the perpendicular pipe laying arrangement mode, the well is beaten perpendicularly, then go into the well with the heat exchanger in the pit and carry out the heat transfer with geothermol power, the heat exchange tube of heat exchanger in the pit is the PE pipe usually, however current ordinary PE pipe unit pipe long heat transfer ability is lower, economic benefits is poor, and the buried mode adopts soil and gravel and sand to backfill to the well usually, the water permeability is poor, lead to PE pipe and well geothermal water contact insufficient, the heat transfer effect is poor, and the process of heat exchanger going into the well in the pit is easy to take place the friction with the wall of a well, lead to heat exchange tube wearing and tearing and structural damage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a water immersion type PE fin single-pass buried heat exchange system, wherein a common PE pipe is replaced by a PE finned pipe, the heat exchange area is effectively increased, the long heat exchange capacity of a unit pipe is greatly improved, the whole heat exchange power is increased and kept static, the economic benefit is greatly improved, and geothermal water can be fully contacted with the PE finned pipe.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the water immersion type PE fin one-way buried heat exchange system comprises an air conditioning well, a water inlet pipe and a fin type heat exchanger, wherein the water inlet pipe and the fin type heat exchanger are vertically arranged in the air conditioning well, silica for burying the water inlet pipe and the fin type heat exchanger is filled in the air conditioning well, the upper water inlet end of the water inlet pipe is connected with an above-ground water source heat pump, the lower water outlet end of the water inlet pipe is connected with the lower water inlet end of the fin type heat exchanger, the upper water outlet end of the fin type heat exchanger is connected with a circulating pump through a water outlet pipe, the water outlet end of the circulating pump is connected with the water inlet end of the above-ground water source heat pump, and the water inlet pipe, the fin type heat exchanger, the circulating pump and the above-ground water source heat pump form a circulating heat exchange system.
The finned heat exchanger comprises an upper seal head and a lower seal head, the upper seal head and the lower seal head are identical in structure and are arranged symmetrically up and down, the upper seal head is of a cylindrical structure, the centers of a top plate of the upper seal head and a bottom plate of the lower seal head are both connected with a water through pipe, the lower end of a water inlet pipe is connected with the lower end of a water through pipe on the lower side through a flange, the upper end of the water through pipe on the upper side is connected with the lower end of a water outlet pipe through a flange, a plurality of first PE heat exchange pipes are fixedly connected between the bottom plate of the upper seal head and the top plate of the lower seal head, a plurality of second PE heat exchange pipes arranged in a circumferential array are fixedly connected between the outer circumference of the lower side of the upper seal head and the outer circumference of the upper side of the lower seal head, a plurality of third PE heat exchange pipes arranged in a circumferential array are fixedly connected between the outer circumference of the upper side of the upper seal head and the outer circumference of the lower side of the lower seal head, and the first PE heat exchange pipes, the second PE heat exchange pipes and the third PE heat exchange pipes are identical in structure and are all PE finned pipes, two ends of one of the first PE heat exchange tubes are fixedly connected to the center of a bottom plate of the upper end enclosure and the center of a top plate of the lower end enclosure respectively, the other first PE heat exchange tubes are arranged in a circumferential array mode around the first PE heat exchange tube positioned in the center, two ends of the second PE heat exchange tube and two ends of the third PE heat exchange tube are horizontally bent into a C-shaped tube towards the center line of the first PE heat exchange tube positioned in the center, the second PE heat exchange tube and the third PE heat exchange tube are same in quantity and are arranged in a staggered and spaced mode in the circumferential direction, the circumferential diameter of the vertical projection of each first PE heat exchange tube, the circumferential diameter of the vertical projection of each second PE heat exchange tube and the circumferential diameter of the vertical projection of each third PE heat exchange tube, which are arranged in the circumferential array mode, are sequentially increased, and guide anti-abrasion devices are fixedly arranged on the outer circumferences of the middle portions of the upper end enclosure and the lower end enclosure.
The first PE heat exchange tube comprises a PE tube main body, a plurality of long fins arranged in an axial direction and in a circumferential array are integrally formed on the outer circumferential side wall of the PE tube main body, and the cross section of each long fin is of a trapezoidal structure with the inner width being wide and the outer width being narrow.
The outer diameter of the PE tube main body is 25mm, the tube wall thickness of the PE tube main body is 1.7mm, the fin height of the long fin is 7mm, the maximum fin thickness of the long fin is the same as the tube wall thickness of the PE tube main body, and the water inlet tube and the water outlet tube are both PE tubes with the diameter of 50 mm.
The direction abrasionproof of upside decreases the device and includes staple bolt and direction ring, two semicircle ring hoop pieces docks of staple bolt and through bolt assembly fastening clamps on the outer circumference in the middle part of upper cover, the outside of staple bolt is overlapped and is in each third PE heat exchange tube outside at the same center to the direction ring, the welding has the connecting plate that a plurality of circumference array set up between the excircle of the interior circle of direction ring and staple bolt, be provided with the guide roller of a plurality of circumference array on the direction ring, guide roller rotates and connects on the direction ring, the outside place circumference diameter of each guide roller slightly is less than the internal diameter of air-conditioning well.
Compared with the prior art, the utility model has substantive characteristics and progress, and specifically, the installation and use processes of the utility model are as follows: after the air conditioning well is drilled, silt in the air conditioning well is quickly washed out, then each connecting plate is bound by using a lifting rope to further hang the fin type heat exchanger, the water inlet pipe and the fin type heat exchanger are vertically downwards placed into the air conditioning well, each guide roller on the guide circular ring can be in rolling contact with the wall of the well in the downwards placing process, each third PE heat exchange pipe is prevented from being damaged due to friction between each third PE heat exchange pipe and the wall of the well, silica is filled after the water inlet pipe and the fin type heat exchanger are downwards placed at specified positions, the water inlet pipe, each first PE heat exchange pipe, each second PE heat exchange pipe and each third PE heat exchange pipe are all buried into the air conditioning well, and due to the fact that the silica has high water permeability, geothermal water can permeate the silica and fully contact with the water inlet pipe, each first PE heat exchange pipe, each second PE heat exchange pipe and each third PE heat exchange pipe, and the water inlet pipe, each first PE heat exchange pipe and each third PE heat exchange pipe are achieved, The temperature of the geothermal water at a specific depth is basically constant year round, the temperature of the geothermal water used here is assumed to be 15-20 ℃, so that the temperature of the surface water is often lower in winter, the temperature of the surface water is cold water relative to the geothermal water, the temperature of the surface water is higher in summer, and the temperature of the surface water is hot water relative to the geothermal water, therefore, when the geothermal water pump is used in winter, the cold water (surface water) in the geothermal water source heat pump is pumped into the water inlet pipe under the pumping action of the circulating pump, the cold water enters the lower end socket through the water through pipes at the lower end and the lower side of the water inlet pipe, the cold water enters the first PE heat exchange pipes, the second PE heat exchange pipes and the third PE heat exchange pipes upwards and flows upwards, and the cold water in the first PE heat exchange pipes, the second PE heat exchange pipes and the third PE heat exchange pipes exchanges heat with the geothermal water in the air conditioner in the process, therefore, cold water is heated into hot water in the flowing process and enters the upper end enclosure, the hot water flows out through the water through pipe and the water outlet pipe on the upper side and enters the ground water source heat pump through the circulating pump, the hot water transfers heat to heating water in the ground water source heat pump, the heating water is supplied to each user for use through a set of heating circulating conveying system, when the air conditioner is used in summer, the hot water (surface water) in the ground water source heat pump is pumped into the water inlet pipe under the pumping action of the circulating pump, and by the same principle, the hot water enters each first PE heat exchange pipe, each second PE heat exchange pipe and each third PE heat exchange pipe and exchanges heat with the ground hot water in the air conditioning well in the upward flowing process, the hot water is cooled into cold water and enters the upper end enclosure, then flows out through the water through pipe and the water outlet pipe on the upper side and enters the ground water source through the circulating pump, and the refrigerating water in the ground water source heat pump transfers heat to the cold water, the temperature of cold water is increased, the temperature of refrigerating water is reduced, and the refrigerating water is supplied to each user for use through a set of refrigerating cycle conveying system, the effects of cold water inlet and hot water outlet in winter and hot water inlet and cold water outlet in summer are achieved, wherein the first PE heat exchange tube, the second PE heat exchange tube and the third PE heat exchange tube are the same in structure and are both PE finned tubes, the first PE heat exchange tube comprises a PE tube main body, and a plurality of long fins arranged along the axial direction and in the circumferential array are integrally formed on the outer circumferential side wall of the PE tube main body.
Wherein, the geothermal water in the air conditioning well and the water heat transfer principle in the finned heat exchanger are: when the temperature of the hot water in the air conditioning well is reduced, the density of the water is increased, the high-density water sinks after the density is increased, the high-density water diffuses to the periphery through the permeable layer after sinking to the bottom of the well, and the high-temperature low-density water rises, so that a water-water heat exchange system with the fin type heat exchanger is formed in the air conditioning well. The system can be used for transforming the existing air conditioning well and can also be used for building a new air conditioning system, the system is high in efficiency and low in cost, underground water can not be extracted really, and the maintenance is convenient.
According to the utility model, the PE finned tube is used for replacing a common PE tube, so that the heat exchange area is effectively increased, the long heat exchange capacity of a unit tube is greatly improved, the integral heat exchange power is increased and kept static, the economic benefit is greatly improved, and geothermal water can be fully contacted with the PE finned tube.
Drawings
Fig. 1 is a view showing an installation structure of the present invention.
FIG. 2 is a schematic view of the connection structure of the water inlet pipe and the finned heat exchanger of the present invention
Fig. 3 is a sectional view taken along line a-a in fig. 2.
Fig. 4 is a schematic cross-sectional view of a first PE heat exchange tube.
Detailed Description
The embodiments of the present invention are further described below with reference to the drawings.
As shown in fig. 1-4, the water immersion type PE fin single-pass underground heat exchange system comprises an air conditioning well 12, a water inlet pipe 1 and a fin type heat exchanger 13, wherein the water inlet pipe 1 and the fin type heat exchanger 13 are both vertically arranged in the air conditioning well 12, silica 14 for burying the water inlet pipe and the fin type heat exchanger is filled in the air conditioning well 12, the upper water inlet end of the water inlet pipe 1 is connected with an above-ground water source heat pump, the lower water outlet end of the water inlet pipe 1 is connected with the lower water inlet end of the fin type heat exchanger 13, the upper water outlet end of the fin type heat exchanger 13 is connected with a circulating pump through a water outlet pipe 2, the water outlet end of the circulating pump is connected with the water inlet end of the above-ground water source heat pump, and the water inlet pipe 1, the fin type heat exchanger 13, the circulating pump and the above-ground water source heat pump constitute a circulating heat exchange system.
The finned heat exchanger 13 comprises an upper seal head 3 and a lower seal head 4, the upper seal head 3 and the lower seal head 4 have the same structure and are arranged up and down symmetrically, the upper seal head 3 is of a cylindrical structure, the center of a top plate of the upper seal head 3 and the center of a bottom plate of the lower seal head 4 are both connected with a water pipe 5, the lower end of a water inlet pipe 1 is connected with the lower end of the water pipe 5 at the lower side through a flange 6, the upper end of the water pipe 5 at the upper side is connected with the lower end of a water outlet pipe 2 through the flange 6, nine first PE heat exchange pipes 7 are fixedly connected between the bottom plate of the upper seal head 3 and the top plate of the lower seal head 4, twelve second PE heat exchange pipes 8 arranged in a circumferential array are fixedly connected between the outer circumference of the lower side of the upper seal head 3 and the outer circumference of the upper side of the lower seal head 4, and twelve third PE heat exchange pipes 9 arranged in a circumferential array are fixedly connected between the outer circumference of the upper side of the upper seal head 3 and the lower side of the lower seal head 4, the first PE heat exchange tubes 7, the second PE heat exchange tubes 8 and the third PE heat exchange tubes 9 are of the same structure and are all PE finned tubes, two ends of one first PE heat exchange tube 7 are respectively and fixedly connected to the center of the bottom plate of the upper seal head 3 and the center of the top plate of the lower seal head 4, the other eight first PE heat exchange tubes 7 are arranged around the first PE heat exchange tube 7 in the center in a circumferential array mode, two ends of the second PE heat exchange tube 8 and two ends of the third PE heat exchange tube 9 are horizontally bent towards the center line of the first PE heat exchange tube 7 in the center to form C-shaped tubes, the second PE heat exchange tubes 8 and the third PE heat exchange tubes 9 are arranged in a staggered and spaced mode in the circumferential direction, the circumferential diameter of the vertical projection of the eight first PE heat exchange tubes 7 arranged in the circumferential array mode, the circumferential diameter of the vertical projection of the twelve second PE heat exchange tubes 8 and the circumferential diameter of the vertical projection of the twelve third PE heat exchange tubes 9 are sequentially increased, the middle outer circumferences of the upper end enclosure 3 and the lower end enclosure 4 are both fixedly provided with a guiding anti-abrasion device 19.
The first PE heat exchange tube 7 comprises a PE tube main body 10, a plurality of long fins 11 arranged in an axial and circumferential array mode are integrally formed on the outer circumferential side wall of the PE tube main body 10, and the cross section of each long fin 11 is of a trapezoidal structure with a wide inner part and a narrow outer part.
The outer diameter of the PE tube main body 10 is 25mm, the tube wall thickness of the PE tube main body 10 is 1.7mm, the fin height of the long fin 11 is 7mm, the maximum fin thickness of the long fin 11 is the same as the tube wall thickness of the PE tube main body 10, and the water inlet tube 1 and the water outlet tube 2 are both PE tubes with the diameter of 50 mm.
The direction abrasionproof of upside decreases device 19 includes staple bolt 15 and direction ring 16, two semicircle hoop pieces butt joints of staple bolt 15 and through bolt assembly fastening clamp on the outer circumference of the middle part of upper cover 3, direction ring 16 concentric cover is in the outside of staple bolt 15 and overlaps in each third PE heat exchange tube 9 outside, the welding has the connecting plate 17 that a plurality of circumference array set up between the interior circle of direction ring 16 and the excircle of staple bolt 15, be provided with the guide roller 18 of a plurality of circumference array on the direction ring 16, guide roller 18 rotates and connects on direction ring 16, the outside circumference diameter of each guide roller 18 place slightly is less than the internal diameter of air-conditioning well 12.
The ground water source heat pump and the circulating pump are both designed conventionally, and the specific construction and the working principle are not repeated.
The installation and use process of the utility model is as follows: after the air conditioning well 12 is drilled, silt in the air conditioning well 12 is quickly washed away, then each connecting plate 17 is bound by a lifting rope so as to hang the finned heat exchanger 13, the water inlet pipe 1 and the finned heat exchanger 13 are vertically lowered into the air conditioning well 12, each guide roller 18 on the guide circular ring 16 can be in rolling contact with a well wall in the lowering process, the third PE heat exchange pipes 9 are prevented from being abraded and damaged by the well wall, after the water inlet pipe 1 and the finned heat exchanger 13 are lowered to the designated positions, silica 14 is filled, the water inlet pipe 1, the first PE heat exchange pipes 7, the second PE heat exchange pipes 8 and the third PE heat exchange pipes 9 are buried into the air conditioning well 12, and due to the fact that the silica 14 has high water permeability, geothermal water can be fully soaked in the silica 14 and fully contacted with the water inlet pipe 1, the first PE heat exchange pipes 7, the second PE heat exchange pipes 8 and the third PE heat exchange pipes 9, the effect that the water inlet pipe 1, each first PE heat exchange pipe 7, each second PE heat exchange pipe 8 and each third PE heat exchange pipe 9 are immersed in geothermal water is achieved, the heat exchange effect is improved, the temperature of geothermal water at a specific depth is basically constant all year round, the temperature of geothermal water used in the method is assumed to be 15-20 ℃, the temperature of surface water is lower in winter, the temperature of surface water is lower compared with that of geothermal water, the temperature of surface water is higher in summer, and the temperature of surface water is hot compared with that of geothermal water, so when the geothermal water is used in winter, cold water (surface water) in an overground water source heat pump is pumped into the water inlet pipe 1 under the pumping action of a circulating pump, the cold water enters the lower end socket 4 through the lower end and the water through pipe 5 on the lower side of the water inlet pipe 1, the cold water further enters each first PE heat exchange pipe 7, each second PE heat exchange pipe 8 and each third PE heat exchange pipe 9 upwards and flows upwards, and each first PE heat exchange pipe 7, each second PE heat exchange pipe 8 and each third PE heat exchange pipe 9 in the process, The cold water in each second PE heat exchange pipe 8 and each third PE heat exchange pipe 9 exchanges heat with the geothermal water in the air conditioning well 12, so that the cold water is heated into hot water in the flowing process and enters the upper end enclosure 3, then the hot water flows out through the water through pipe 5 and the water outlet pipe 2 at the upper side and enters the ground water source heat pump through the circulating pump, the hot water transfers heat to heating water in the ground water source heat pump, the heating water is supplied to each user through a set of heating circulating conveying system, when the underground water heating system is used in summer, the hot water (surface water) in the ground water source heat pump is pumped into the water inlet pipe 1 under the pumping action of the circulating pump, and by the same principle, the hot water enters each first PE heat exchange pipe 7, each second PE heat exchange pipe 8 and each third PE heat exchange pipe 9 and exchanges heat with the geothermal water in the air conditioning well 12 in the upward flowing process, the hot water is cooled into cold water and enters the upper end enclosure 3, then flows out through the water pipe 5 and the water outlet pipe 2 at the upper side and enters the ground water source heat pump through the circulating pump, the refrigeration water in the ground water source heat pump transfers heat to cold water, the cold water is heated, the temperature of the refrigeration water is reduced and then is supplied to each user for use through a set of refrigeration cycle conveying system, the effect of cold water inlet and hot water outlet in winter and hot water inlet and cold water inlet in summer is realized, wherein the first PE heat exchange pipe 7, the second PE heat exchange pipe 8 and the third PE heat exchange pipe 9 have the same structure and are both PE finned pipes, the first PE heat exchange pipe 7 comprises a PE pipe main body 10, a plurality of long fins 11 arranged along the axial direction and the circumferential array are integrally formed on the outer circumferential side wall of the PE pipe main body 10, thus, the heat exchange area of the PE pipe main body 10 can be effectively increased, the heat exchange area is increased by 1.5 times compared with the common PE pipe with the same diameter, the long heat exchange capacity of a unit pipe is greatly improved, the whole heat exchange power is increased and kept static state is kept, the economic benefit is greatly improved.
Wherein, the geothermal water in the air conditioning well and the water heat transfer principle in the finned heat exchanger are: when the temperature of the hot water in the air conditioning well is reduced, the density of the water is increased, the high-density water sinks after the density is increased, the high-density water diffuses to the periphery through the permeable layer after sinking to the bottom of the well, and the high-temperature low-density water rises, so that a water-water heat exchange system with the fin type heat exchanger is formed in the air conditioning well. The system can be used for transforming the existing air conditioning well and can also be used for building a new air conditioning system, the system is high in efficiency and low in cost, underground water can not be extracted really, and the maintenance is convenient.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that; modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model and it is intended to cover in the claims the utility model as defined in the appended claims.
Claims (5)
1. Water logging formula PE fin buries heat transfer system once-through, its characterized in that: the system comprises an air conditioning well, a water inlet pipe and a finned heat exchanger, wherein the water inlet pipe and the finned heat exchanger are vertically arranged in the air conditioning well, silica for burying the water inlet pipe and the finned heat exchanger is filled in the air conditioning well, the water inlet end at the upper end of the water inlet pipe is connected with the water outlet end of an overground water source heat pump, the water outlet end at the lower end of the water inlet pipe is connected with the water inlet end at the lower end of the finned heat exchanger, the water outlet end at the upper end of the finned heat exchanger is connected with a circulating pump through a water outlet pipe, the water outlet end of the circulating pump is connected with the water inlet end of the overground water source heat pump, and the water inlet pipe, the finned heat exchanger, the circulating pump and the overground water source heat pump form a circulating heat exchange system.
2. The water immersed PE fin single pass underground heat exchange system according to claim 1, wherein: the finned heat exchanger comprises an upper seal head and a lower seal head, the upper seal head and the lower seal head are identical in structure and are arranged in an up-down symmetrical mode, the upper seal head is of a cylindrical structure, the center of a top plate of the upper seal head and the center of a bottom plate of the lower seal head are both connected with water pipes, the lower end of a water inlet pipe is connected with the lower end of the water pipe at the lower side through a flange, the upper end of the water pipe at the upper side is connected with the lower end of a water outlet pipe through a flange, a plurality of first PE heat exchange pipes are fixedly connected between the bottom plate of the upper seal head and the top plate of the lower seal head, a plurality of second PE heat exchange pipes arranged in a circumferential array are fixedly connected between the outer circumference of the lower side of the upper seal head and the outer circumference of the upper side of the lower seal head, a plurality of third PE heat exchange pipes arranged in a circumferential array are fixedly connected between the outer circumference of the upper side of the upper seal head and the outer circumference of the lower seal head, the first PE heat exchange pipes, the second PE heat exchange pipes and the third PE heat exchange pipes are identical in structure and are all PE finned pipes, two ends of one first PE heat exchange tube are respectively and fixedly connected to the center of a bottom plate of an upper end enclosure and the center of a top plate of a lower end enclosure, the rest first PE heat exchange tubes are arranged in a circumferential array around the first PE heat exchange tubes positioned in the center, two ends of a second PE heat exchange tube and two ends of a third PE heat exchange tube are horizontally bent into C-shaped tubes towards the center line of the first PE heat exchange tube positioned in the center, the second PE heat exchange tube and the third PE heat exchange tube are same in quantity and are arranged in a staggered and spaced mode in the circumferential direction, the circumferential diameter of the vertical projection of each first PE heat exchange tube, the circumferential diameter of the vertical projection of each second PE heat exchange tube and the circumferential diameter of the vertical projection of each third PE heat exchange tube, which are arranged in the circumferential array, are sequentially increased, and guide anti-abrasion devices are fixedly arranged on the outer circumferences in the middle of the upper end enclosure and the lower end enclosure.
3. The water immersed PE fin single pass underground heat exchange system according to claim 2, wherein: the first PE heat exchange tube comprises a PE tube main body, a plurality of long fins arranged in an axial and circumferential array mode are integrally formed on the outer circumferential side wall of the PE tube main body, and the cross section of each long fin is of a trapezoidal structure with the inner width being wide and the outer width being narrow.
4. The water immersed PE fin single pass underground heat exchange system of claim 3, wherein: the outer diameter of the PE tube main body is 25mm, the tube wall thickness of the PE tube main body is 1.7mm, the fin height of the long fin is 7mm, the maximum fin thickness of the long fin is the same as the tube wall thickness of the PE tube main body, and the water inlet tube and the water outlet tube are both PE tubes with the diameter of 50 mm.
5. The water immersed PE fin single pass underground heat exchange system according to claim 2, wherein: the direction abrasionproof of upside decreases the device and includes staple bolt and direction ring, two semicircle ring hoop pieces docks of staple bolt and through bolt assembly fastening clamps on the outer circumference in the middle part of upper cover, the outside of staple bolt is overlapped and is in each third PE heat exchange tube outside at the same center to the direction ring, the welding has the connecting plate that a plurality of circumference array set up between the excircle of the interior circle of direction ring and staple bolt, be provided with the guide roller of a plurality of circumference array on the direction ring, guide roller rotates and connects on the direction ring, the outside place circumference diameter of each guide roller slightly is less than the internal diameter of air-conditioning well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220390909.2U CN216924799U (en) | 2022-02-25 | 2022-02-25 | Water immersion type PE fin single-pass buried heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220390909.2U CN216924799U (en) | 2022-02-25 | 2022-02-25 | Water immersion type PE fin single-pass buried heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216924799U true CN216924799U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220390909.2U Active CN216924799U (en) | 2022-02-25 | 2022-02-25 | Water immersion type PE fin single-pass buried heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216924799U (en) |
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2022
- 2022-02-25 CN CN202220390909.2U patent/CN216924799U/en active Active
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