CN212006299U

CN212006299U - Ground source heat pump heat exchange device

Info

Publication number: CN212006299U
Application number: CN201921920397.0U
Authority: CN
Inventors: 朱汉宝
Original assignee: Shanghai Sinyo New Energy Technology Co ltd
Current assignee: Shanghai Sinyo New Energy Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-11-24
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a ground source heat pump heat transfer device, including short water pipe, long water pipe and a plurality of tubular pile parallelly connected respectively, it is a plurality of the inner chamber of tubular pile forms the heat transfer room, the heat transfer room is annotated with the heat transfer medium, short water pipe stretches into the shallow department of head of tubular pile, long water pipe stretches into the end depths of tubular pile, be equipped with the mount in the tubular pile, short water pipe and long water pipe leads to pipe fixed subassembly to be fixed in the mount. The utility model provides a ground source heat pump heat transfer device, its structure is simple and clear, and it is convenient to use, and the heat transfer is effectual.

Description

Ground source heat pump heat exchange device

Technical Field

The utility model relates to a ground source heat pump heat transfer device.

Background

At present, some ground source heat pumps need to be drilled and buried, the pipe depth needs more than 100 meters, and double-pipe piles are generally adopted. The problems of heat conduction materials of the buried pipe, deep fixation of the buried pipe, energy consumption of the ground source heat pump and the like are involved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects in the prior art and providing a heat exchange device of a ground source heat pump.

In order to achieve the purpose, the method is realized by the following technical scheme:

the utility model provides a ground source heat pump heat transfer device, is including respectively parallelly connected short water pipe, long water pipe and a plurality of tubular pile, and is a plurality of the inner chamber of tubular pile forms the heat transfer room, the heat transfer room is annotated with the heat transfer medium, short water pipe stretches into the shallow department of head of tubular pile, long water pipe stretches into the end depths of tubular pile, be equipped with the mount in the tubular pile, short water pipe and long water pipe leads to pipe fixed subassembly to be fixed in the mount.

Preferably, the fixing frame comprises a U-shaped frame, a steel wire bottom net and a transverse reinforcing column, the steel wire bottom net is fixedly arranged at the bottom end of the U-shaped frame, the transverse reinforcing column is fixedly connected between the U-shaped frames at two sides, and a water pipe floating-stopping piece is arranged at the lower end of the steel wire bottom net.

Preferably, the water pipe fixing component comprises a left semicircular clamping piece, a right semicircular clamping piece, a clamping elastic piece and a fixing bolt, the left semicircular clamping piece and the right semicircular clamping piece are identical in structure and comprise an arc-shaped section and a straight line section, the straight line section is integrally formed at two ends of the arc-shaped section, the radian of the arc-shaped section is smaller than that of a semicircle, the diameter of the semicircle is consistent with that of the installation sections of the short water pipe and the long water pipe, a bolt hole for installing the fixing bolt is formed in the straight line section, a fixing groove for clamping the elastic piece is further formed in the straight line section, and the clamping elastic piece is arranged between the straight line section of the left semicircular clamping piece and the straight line section of the right semicircular clamping piece.

Preferably, a plurality of heat exchanging holes are formed in the radial direction of the left semi-annular clamping piece and the right semi-annular clamping piece.

Preferably, the short water pipe with the inner structure of long water pipe is the same and includes the body, the inside of body is provided with the pipe passageway, the upper surface of body is provided with the lateral conduit, and the lateral conduit is installed to the top of lateral conduit, the connector is installed to the right-hand member of body, the surface of connector is provided with the external screw thread.

Preferably, the pipe body comprises a PP layer, a heat insulation layer, a glass fiber reinforced plastic pipe layer and a metal layer, the PP layer is arranged on the inner side of the heat insulation layer, the metal layer is arranged on the outer side of the heat insulation layer, and the glass fiber reinforced plastic pipe layer is arranged on the outer side of the metal layer.

Preferably, the tubular pile tip is equipped with the head, the short water pipe reaches long water pipe passes respectively the head, the wet return when the short water pipe heats for the intake pipe when winter, summer, the wet return when long water pipe heats for the intake pipe when summer, winter.

Preferably, the tubular pile is provided with a built-in bag skin, the bag skin is attached to the inner wall of the tubular pile after being injected with a heat exchange medium, and the short water pipe and the long water pipe extend into the heat exchange medium in the bag skin.

Preferably, the inner wall of the pipe pile is coated with a waterproof layer.

The utility model discloses ground source heat pump heat transfer device's beneficial effect includes:

1) according to the ground source heat pump system, heat exchange media are injected into the inner cavities of the building foundation pipe piles, the inner cavities of the plurality of pipe piles are connected in parallel to form a heat exchange chamber of the ground source heat pump system, and idle inner cavities of the pipe piles are fully utilized by means of water specific gravity convection, so that the water yield is high, the manufacturing cost is low, and the energy consumption is low; moreover, the short water pipe and the long water pipe are fixed by the fixing frame matched with the water pipe fixing assembly, so that the water pipes are kept firm and stable in the vertical depth direction;

2) the short water pipe and the long water pipe are provided with branch pipes, and the branch pipes can be used for shunting, so that a tee joint or a bent pipe is avoided being installed, the shunting is more convenient and faster, and materials are saved; meanwhile, the pipe body of the ground source heat pump pipeline is provided with the heat preservation layer, the heat preservation layer has a strong heat preservation effect, the transmission efficiency of a heat source is increased, meanwhile, the pipe body of the ground source heat pump pipeline is also provided with the glass fiber reinforced plastic pipe layer, the glass fiber reinforced plastic pipe layer not only has strong corrosion resistance, but also has high mechanical strength and integrity, and damage is not easy to occur after the pipe body is impacted by machinery.

Drawings

Figure 1 is the structure sketch of the ground source heat pump heat exchange device of the utility model.

Fig. 2 is the schematic structural diagram of the water pipe fixing component in the ground source heat pump heat exchange device of the present invention.

Fig. 3 is a schematic view of the pipe body structure of the short water pipe and the long water pipe in fig. 1.

Fig. 4 is a schematic cross-sectional internal structure view of the tube body corresponding to fig. 3.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1, a tubular pile type ground source heat pump heat exchanger, after the inner cavities of a plurality of tubular piles 1 are connected in parallel, a heat exchange chamber of a ground source heat pump system is formed, heat exchange media are injected into the inner cavities of the tubular piles 1, end sockets are arranged at the end parts of the tubular piles 1, and at least short water pipes 2 extending into the upper parts of the tubular piles 1 and long water pipes 3 extending into the deep parts of the tubular piles 1 are arranged on the end sockets. The short water pipe 2 is a water taking pipe in heating in winter and a water return pipe in refrigerating in summer; the long water pipe 3 is a water taking pipe in summer for cooling and a water return pipe in winter for heating. The short water pipes 2 and the long water pipes 3 of the plurality of tubular piles 1 are respectively connected in parallel to form the whole heat exchange system.

After the waterproof layer is directly coated on the inner wall of the tubular pile 1, the heat exchange medium is directly injected into the tubular pile 1. The waterproof layer can be coated before pile driving, and when pile splicing is carried out, the sealing of the joint of the pile and waterproof treatment are ensured. A method of arranging the built-in bag skin 4 in the tubular pile 1 can also be adopted, the bag skin 4 has elasticity, the bag skin is attached to the inner wall of the tubular pile 1 after the heat exchange medium is injected, and the short water pipe 2 and the long water pipe 3 extend into the heat exchange medium in the bag skin. A water replenishing pipe can be additionally arranged and is communicated with an expansion water tank.

On the other hand, a fixing frame 5 is fixedly installed in the tubular pile 1, the short water pipe 2 and the long water pipe 3 are fixed on the fixing frame 5 through a water pipe fixing component 6, the fixing frame 5 comprises a U-shaped frame 50, a steel wire bottom net 52 and a transverse reinforcing column 54, the steel wire bottom net 52 is fixedly arranged at the bottom end of the U-shaped frame 50, the transverse reinforcing column 54 is fixedly connected to two sides between the U-shaped frames 50, and a water pipe floating blocking piece 56 is arranged at the lower end of the steel wire bottom net 52. Wherein, the water pipe floating-blocking piece 56 is a steel conical tip, and the conical tip is arranged downwards.

As shown in fig. 2, the water pipe fixing assembly 6 comprises a left semicircular clamping piece 60, a right semicircular clamping piece 62, a clamping elastic piece 64 and a fixing bolt 66, the left semicircular clamping piece 60 and the right semicircular clamping piece 62 are identical in structure, the left semicircular clamping piece 60 and the right semicircular clamping piece 62 both comprise an arc-shaped section and a straight line section, the straight line section is integrally formed at two ends of the arc-shaped section, the radian of the arc-shaped section is smaller than that of a semicircle, the diameter of the semicircle is consistent with that of the installation sections of the short water pipe and the long water pipe, a bolt hole for installing the fixing bolt 66 is formed in the straight line section, a fixing groove for clamping the elastic piece 64 is further formed in the straight line section, and the clamping elastic piece 64 is arranged between the straight line section of the left semicircular clamping piece 60 and the straight line section of the right semicircular clamping piece. A plurality of heat exchanging holes 68 may be further provided in the radial direction of the left and right

semi-annular clips

60 and 62.

Furthermore, through the fixing frame and the water pipe fixing assembly, the vertical water pipe (namely, the long and short water pipe) can be well fixed, so that the fixing is stable, the floating phenomenon of the ground water pipe can be prevented, and the arrangement precision of the ground water pipe is ensured.

As shown in fig. 3, the short water pipe 2 and the long water pipe 3 have the same internal structure and include a pipe body 100, a pipe passage 110 is provided inside the pipe body 100, a branch pipe passage is provided on the upper surface of the pipe body 100, a branch pipe 101 is installed above the branch pipe passage, a connector 102 is installed on the right end of the pipe body 100, and an external thread 112 is provided on the outer surface of the connector 102.

As shown in fig. 4, the pipe body 100 includes a PP layer 103, an insulating layer 104, a glass fiber reinforced plastic pipe layer 105, and a metal layer 106, wherein the PP layer 103 is provided inside the insulating layer 104, the metal layer 106 is provided outside the insulating layer 104, and the glass fiber reinforced plastic pipe layer 105 is provided outside the metal layer 106. The PP layer 103 is a non-toxic, sanitary, high-temperature resistant and recyclable pipe type, and is characterized by being free of corrosion, abrasion and scaling, capable of reducing vibration and noise, capable of preventing frost cracking and condensation, small in heat loss and long in service life; the heat-insulating layer 104 is a novel green inorganic single-component packaging dry powder heat-insulating coating which is prepared by taking natural fibers as main raw materials and adding a certain amount of inorganic auxiliary materials through composite processing, the heat-insulating coating is mixed with water before processing and then scraped on the surface of a surface body to be insulated, and a microporous reticular heat-insulating layer with a high-strength structure can be formed after drying.

The utility model provides a ground source heat pump heat transfer device, its structure is simple and clear, and it is convenient to use, and the heat transfer is effectual.

The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.

Claims

1. The ground source heat pump heat exchange device is characterized by comprising a short water pipe, a long water pipe and a plurality of tubular piles which are connected in parallel respectively, wherein inner cavities of the tubular piles form a heat exchange chamber, heat exchange media are injected into the heat exchange chamber, the short water pipe extends into the shallow position of the head of the tubular pile, the long water pipe extends into the deep position of the bottom of the tubular pile, a fixing frame is arranged in the tubular pile, and the short water pipe and the long water pipe are fixed on the fixing frame through water pipe fixing components; the fixing frame comprises a U-shaped frame, a steel wire bottom net and transverse reinforcing columns, the steel wire bottom net is fixedly arranged at the bottom end of the U-shaped frame, the transverse reinforcing columns are fixedly connected between the U-shaped frames on two sides, and water pipe floating blocking pieces are arranged at the lower ends of the steel wire bottom net.

2. The ground source heat pump heat exchange device of claim 1, wherein the water pipe fixing assembly comprises a left semi-annular clamping piece, a right semi-annular clamping piece, a clamping elastic piece and a fixing bolt, the left semi-annular clamping piece and the right semi-annular clamping piece are identical in structure and comprise arc sections and straight sections, the straight sections are integrally formed at two ends of the arc sections, the radian of the arc sections is smaller than that of a semicircle, the diameter of the semicircle is consistent with that of the installation sections of the short water pipe and the long water pipe, bolt holes for installing the fixing bolt are formed in the straight sections, fixing grooves for the clamping elastic pieces are further formed in the straight sections, and the clamping elastic pieces are arranged between the straight sections of the left semi-annular clamping piece and the right semi-annular clamping piece.

3. The ground source heat pump heat exchange device of claim 2, wherein the left semi-annular clip and the right semi-annular clip are provided with a plurality of heat exchange holes in radial direction.

4. The ground source heat pump heat exchange device of claim 1, wherein the short water pipe has the same internal structure as the long water pipe and comprises a pipe body, a pipe passage is arranged inside the pipe body, a branch pipe passage is arranged on the upper surface of the pipe body, a branch pipe is arranged above the branch pipe passage, a connector is arranged at the right end of the pipe body, and an external thread is arranged on the outer surface of the connector.

5. The ground source heat pump heat exchange device of claim 4, wherein the pipe body comprises a PP layer, a heat insulation layer, a FRP pipe layer and a metal layer, the PP layer is arranged on the inner side of the heat insulation layer, the metal layer is arranged on the outer side of the heat insulation layer, and the FRP pipe layer is arranged on the outer side of the metal layer.

6. The ground source heat pump heat exchange device of claim 1, wherein the tubular pile end is provided with a head, the short water pipe and the long water pipe respectively pass through the head, the short water pipe is a water intake pipe during heating in winter and a water return pipe during cooling in summer, and the long water pipe is a water intake pipe during cooling in summer and a water return pipe during heating in winter.

7. The ground source heat pump heat exchange device of claim 1, wherein the pipe pile is provided with a built-in bag skin, the bag skin is attached to the inner wall of the pipe pile after being injected with the heat exchange medium, and the short water pipe and the long water pipe extend into the heat exchange medium in the bag skin.

8. The ground source heat pump heat exchange device of claim 1, wherein the inner wall of the pipe pile is coated with a waterproof layer.