CN211261870U

CN211261870U - Pre-buried heat transfer device

Info

Publication number: CN211261870U
Application number: CN201922429025.4U
Authority: CN
Inventors: 张斯�
Original assignee: Hunan Zhongda Jingwei Geothermy Development Technology Co ltd
Current assignee: Hunan Zhongda Jingwei Geothermy Development Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-14
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a pre-buried heat transfer device, including the body of rod and connection backing plate, body of rod cavity and one end opening, the connection backing plate sets up body of rod opening part, its characterized in that: a liquid inlet pipe and a liquid outlet pipe are arranged in the rod body, the liquid inlet pipe spirally extends along the axial direction of the rod body, and the liquid inlet pipe is attached to the inner wall of the rod body; the liquid outlet pipe extends linearly along the axial direction of the rod body; the liquid inlet pipe and the liquid outlet pipe are communicated in the rod body; the liquid inlet pipe is used for leading in heat exchange media, and the liquid outlet pipe is used for leading out the heat exchange media. Through setting up the feed liquor pipe that extends along body of rod axial spiral, compare traditional U-shaped pipe, the feed liquor pipe of this design is bigger, the contact is more even with body of rod foreign groundwater and/or ground body area of contact, and heat exchange medium is longer in the time that the underground stayed, and the absorptive heat is more, and the heat transfer is effectual to heat exchange medium direction ground through the drain pipe of sharp extension is to ground building heating.

Description

Pre-buried heat transfer device

Technical Field

The utility model relates to a ground source heat pump technical field, concretely relates to pre-buried heat transfer device.

Background

The ground source heat pump is a heat supply and air conditioning system which takes rock and soil mass, underground water or surface water as a low-temperature heat source and consists of a water source heat pump unit, a geothermal energy exchange system and a system in a building. The ground source heat pump system is to bury the heat exchange pipeline underground to extract ground source heat energy and then provide the ground source heat energy to the building, and the mode of environmental protection and energy saving is widely used. One conventional method is to arrange a U-shaped coil pipe in an anchor rod, introduce a heat exchange fluid into the pipe, and exchange heat with gravel soil and/or underground water around the anchor rod through the heat exchange fluid, so that the anchor rod can perform shallow geothermal conversion while having anti-floating, anti-pulling and earth-retaining supporting functions, thereby performing dual functions of the anchor rod and a ground source heat pump heat exchanger.

However, in the existing heat exchange anchor rod, the tubular heat exchanger is in a U shape, so that the retention time of heat exchange fluid in the ground is short, and the contact area between underground water and/or rock and soil mass and the U-shaped pipe is small, so that the heat exchange effect is not ideal.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a pre-buried heat transfer device has solved among the current heat transfer stock that the design of U-shaped pipe leads to heat transfer fluid shorter at the dwell time of underground to and groundwater and/or ground body are less with the area of contact of U-shaped pipe, lead to the unsatisfactory technical problem of heat transfer effect.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a pre-buried heat exchange device comprises a rod body and a connecting base plate, wherein the rod body is hollow, one end of the rod body is open, the connecting base plate is arranged at the opening of the rod body, a liquid inlet pipe and a liquid outlet pipe are arranged in the rod body, the liquid inlet pipe spirally extends along the axial direction of the rod body, and the liquid inlet pipe is attached to the inner wall of the rod body; the liquid outlet pipe extends linearly along the axial direction of the rod body; the liquid inlet pipe and the liquid outlet pipe are communicated in the rod body after respectively penetrating through the connecting base plate; the liquid inlet pipe is used for leading in heat exchange media, and the liquid outlet pipe is used for leading out the heat exchange media.

Optionally, the liquid inlet pipe is provided with a heat conducting fin, and the heat conducting fin is attached to the inner wall of the rod body.

Optionally, a heat exchange bag is arranged in the rod body, and the liquid inlet pipe is communicated with the liquid outlet pipe through the heat exchange bag.

Optionally, a partition plate is arranged on one side, close to the liquid inlet pipe, of the heat exchange bag, and the liquid inlet pipe and the liquid outlet pipe are communicated with the heat exchange bag after penetrating through the partition plate.

Optionally, the connecting base plate is provided with a connecting rod towards one side of the rod body, and the connecting rod is connected with the partition plate.

Optionally, the liquid outlet pipe is sleeved in the connecting rod.

Optionally, cement mortar is filled between the partition plate and the connecting backing plate.

According to the above technical scheme, the beneficial effects of the utility model are that:

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of a pre-buried heat exchange device;

FIG. 2 is a schematic structural diagram of another embodiment of an embedded heat exchange device;

FIG. 3 is a schematic structural diagram of another embodiment of an embedded heat exchange device;

reference numerals:

1-rod body, 2-liquid inlet pipe, 3-liquid outlet pipe, 4-connecting backing plate, 5-cement mortar and 6-heat exchange bag;

21-heat conducting fins, 41-connecting rods and 42-clapboards.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1-2, the present invention provides a pre-buried heat exchanger, which comprises a rod body 1 and a connecting pad plate 4, wherein the rod body 1 is hollow and has an open end, and the connecting pad plate 4 is disposed at the open end of the rod body 1. Be equipped with feed liquor pipe 2 and drain pipe 3 in the body of rod 1, feed liquor pipe 2 is used for leading-in heat exchange medium, drain pipe 3 is used for deriving heat exchange medium, specifically, heat exchange medium is water or salt solution. The specific heat capacity of water and saline water is large, and the heat absorption and heat dissipation capacity is good; while the brine also prevents freezing. The liquid inlet pipe 2 extends spirally along the axial direction of the rod body 1, and the liquid inlet pipe 2 is attached to the inner wall of the rod body 1; the liquid outlet pipe 3 extends along the axial direction of the rod body 1 in a straight line mode so as to rapidly convey the heat value absorbed by the liquid inlet pipe 2 to the ground surface. The liquid inlet pipe 2 and the liquid outlet pipe 3 are communicated with the inside of the rod body 1 after respectively penetrating through the connecting base plate 4. Through setting up along the feed liquor pipe 2 of 1 axial spiral extension of the body of rod, when embedding the body of rod 1 underground, compare traditional U-shaped pipe, the feed liquor pipe 2 of this design is bigger with the body of rod 1 outer groundwater and/or ground body area of contact, the contact is more even, the heat exchange medium is longer in the time that the underground stayed, the absorptive heat is more, the heat transfer is effectual to the heat exchange medium direction ground that extends through the straight line is to ground building heating.

As a further improvement to the above-mentioned scheme, be equipped with conducting strip 21 on feed liquor pipe 2, conducting strip 21 laminates in body of rod 1 inner wall, the concrete welding of conducting strip 21 is in feed liquor pipe 2 towards body of rod 1 inner wall one side. Through setting up conducting strip 21 to absorb the heat energy in the groundwater of the body of rod 1 outside fast.

As a further improvement to the above scheme, a heat exchange bag 6 is arranged in the rod body 1, the liquid inlet pipe 2 and the liquid outlet pipe 3 are communicated through the heat exchange bag 6, the heat exchange bag 6 is arranged at the bottom of the inner side of the rod body 1 and is made of a material which can expand outwards to expand and fold when heat conduction fluid is injected into the heat exchange bag 6, the bottom of the rod body 1 is deeper into the ground, geothermal energy is higher, the heat absorption area is increased through the heat exchange bag 6 with larger body size, the heat value absorption amount is increased, and more heat can be conveniently led out by the liquid outlet pipe 3. The heat exchange bag 6 is equipped with baffle 42 near 2 one sides of feed liquor pipe, feed liquor pipe 2 and drain pipe 3 pass behind the baffle 42 with heat exchange bag 6 intercommunication, connecting plate 4 is equipped with connecting rod 41 towards body of rod 1 one side, connecting rod 41 is connected with baffle 42, drain pipe 3 pastes and leans on in order to obtain the holding power at connecting rod 41 outer wall. Cement mortar 5 is filled between the partition plate 42 and the connecting pad plate 4 to enhance the structural strength of the rod body 1. Pack the district and heat exchange bag 6 completely cuts off through baffle 42, hang baffle 42 through connecting rod 41 and establish on connecting backing plate 4, avoid 5 extrusion heat exchange bags 6 of cement mortar to cause heat exchange bag 6 to become invalid, connecting rod 41 and connecting backing plate 4 can be the fashioned concrete piece of integrative pouring. Specifically, the connecting pad 4 is provided with at least one grouting hole. Particularly, referring to fig. 3, the liquid outlet pipe 3 is sleeved in the connecting rod 41 and integrally cast with the connecting rod 41, the liquid outlet pipe 3 is fixed and protected by the connecting rod 41, and heat dissipation of the heat exchange medium during circulation of the liquid outlet pipe 3 is also reduced.

The device can be applied to the following concrete applications:

1) the long spiral pile is the conventional art as building anti-floating anchor, when the long spiral anchor of construction, pre-buried this device in the anchor, makes long spiral anti-floating anchor possess the dual function of anti-floating with the heat transfer, and the anchor is direct to contact with groundwater, exchanges the heat through groundwater circulation, and the effect is very good.

2) The traditional retaining wall pile wall has two functions of retaining wall of foundation pit and discharging water. When the dado pile wall is under construction, adopt two rows of long spiral bored concrete piles, be the quincunx and arrange, when the construction, with this device pre-buried in the pile foundation, form the multi-functional dado pile wall that possesses excavation supporting and heat transfer function, pile wall and groundwater direct contact realize the heat fast exchange through groundwater circulation, the effect is very good.

3) The conventional soil anchor rod only has the function of wall protection. When the construction soil layer stock, with this device pre-buried inside the stock, soil layer stock and groundwater direct contact, the groundwater of quick flow makes it have stronger heat exchange capacity during the construction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a pre-buried heat transfer device, includes the body of rod (1) and connecting pad board (4), body of rod (1) cavity and one end opening, connecting pad board (4) set up the body of rod (1) opening part, its characterized in that: a liquid inlet pipe (2) and a liquid outlet pipe (3) are arranged in the rod body (1), the liquid inlet pipe (2) extends spirally along the axial direction of the rod body (1), and the liquid inlet pipe (2) is attached to the inner wall of the rod body (1); the liquid outlet pipe (3) extends linearly along the axial direction of the rod body (1); the liquid inlet pipe (2) and the liquid outlet pipe (3) respectively penetrate through the connecting base plate (4) and then are communicated with each other in the rod body (1); the liquid inlet pipe (2) is used for leading in heat exchange media, and the liquid outlet pipe (3) is used for leading out the heat exchange media.

2. The pre-buried heat exchange device of claim 1, characterized in that: the liquid inlet pipe (2) is provided with a heat conducting fin (21), and the heat conducting fin (21) is attached to the inner wall of the rod body (1).

3. The pre-buried heat exchange device of any one of claims 1-2, wherein: the heat exchange rod is characterized in that a heat exchange bag (6) is arranged in the rod body (1), and the liquid inlet pipe (2) is communicated with the liquid outlet pipe (3) through the heat exchange bag (6).

4. The pre-buried heat exchange device of claim 3, characterized in that: a partition plate (42) is arranged on one side, close to the liquid inlet pipe (2), of the heat exchange bag (6), and the liquid inlet pipe (2) and the liquid outlet pipe (3) are communicated with the heat exchange bag (6) after penetrating through the partition plate (42).

5. The pre-buried heat exchange device of claim 4, wherein: connecting plate (4) are equipped with connecting rod (41) towards body of rod (1) one side, connecting rod (41) are connected with baffle (42).

6. The pre-buried heat exchange device of claim 5, characterized in that: the liquid outlet pipe (3) is sleeved in the connecting rod (41).

7. The pre-buried heat exchange device of claim 5, characterized in that: cement mortar (5) is filled between the partition plate (42) and the connecting backing plate (4).