CN210119034U

CN210119034U - Heat exchange pipeline of soil heat source heat pump

Info

Publication number: CN210119034U
Application number: CN201921055746.7U
Authority: CN
Inventors: 李强; 闫雨田
Original assignee: Shaanxi North Human Settlement Environment Technology Co ltd
Current assignee: Shaanxi North Human Settlement Environment Technology Co ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-02-28
Anticipated expiration: 2029-07-08

Abstract

The utility model discloses a soil heat source heat pump heat exchange pipeline, the utility model discloses a heat source circulating pipe, the heat source circulating pipe includes ground section pipeline and underground section pipeline, ground section pipeline is connected with heat pump set heat conduction, the underground section pipeline is perpendicular stringing structure, the surface mounting of underground section pipeline has outer extension board, interior cavity wall of underground section pipeline is installed and is extended the board, heat and the heat exchange efficiency of heat transfer medium in the heat exchange pipeline that can effectual increase soil to improve the work efficiency of whole soil heat source heat pump.

Description

Heat exchange pipeline of soil heat source heat pump

Technical Field

The utility model relates to a heat pump system, specific theory is a soil heat source heat pump heat exchange pipeline.

Background

The soil source heat pump is a device which completes heat exchange with the interior of a building through a pipeline system deeply buried around the building by utilizing the characteristic that the temperature of underground normal-temperature soil is relatively stable. Heat is taken from soil in winter to heat buildings; in summer, heat is discharged to the soil to refrigerate the building. Soil is used as a heat source and a cold source, and heat or cold is supplied to a building through a high-efficiency heat pump unit. The energy efficiency ratio of the high-efficiency heat pump unit can generally reach more than 4.0kw/kw, compared with the configuration of a traditional water chilling unit and a boiler, the annual energy consumption can be saved by about 40%, the initial investment is higher, the machine room area is smaller, considerable water consumption of a cooling tower of a conventional system is saved, the operation cost is low, no harmful substance is generated, no pollution is caused to the environment, and the effect of environmental protection is realized.

How to increase the heat exchange efficiency between the heat of the soil and the heat exchange medium (which can be water) in the heat exchange pipeline on the basis of the existing equipment is one of the problems to be solved urgently for improving the working efficiency of the soil heat pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soil heat source heat pump heat exchange pipeline can be effectual in the heat of increase soil and the heat exchange efficiency of heat transfer medium among the heat exchange pipeline to improve the work efficiency of whole soil heat source heat pump.

The heat exchange pipeline of the soil heat source heat pump comprises a heat source circulating pipe, wherein the heat source circulating pipe comprises an upper section pipeline and a lower section pipeline, the upper section pipeline is in heat conduction connection with the heat pump unit, the lower section pipeline is in a vertical pipe arrangement structure, an outer extension plate is installed on the outer surface of the lower section pipeline, and an inner extension plate is installed on the inner cavity wall of the lower section pipeline.

Further, the underground section pipeline comprises a vertical water inlet section pipeline, the downstream section of the water inlet section pipeline along the water flow direction is communicated with a vertical heat exchange section pipeline through a communication elbow, and the downstream section of the heat exchange section pipeline along the water flow direction is communicated with a vertical water outlet section pipeline through the communication elbow.

Furthermore, the number of the communication bent pipes is at least three, the communication bent pipes are respectively arranged on the upper layer and the lower layer of the soil, at least one communication bent pipe is arranged on the upper layer, at least two communication bent pipes are arranged on the lower layer, and the communication bent pipes on the upper layer and the lower layer are oppositely bent.

Furthermore, the outer extension plate positioned on the outer wall of the heat exchange section pipeline is obliquely arranged upwards.

Furthermore, a through hole is formed in the plate body of the outer extension plate.

Further, the through hole is a cylindrical through hole, and an axis of the through hole is vertically arranged.

Furthermore, a through liquid passing channel is arranged on the plate ladder of the inner extension plate.

Furthermore, the number of the liquid passing channels is at least two, the liquid passing channels are cylindrical, and the axis of each liquid passing channel is parallel to the direction of water flow in the underground pipeline.

Furthermore, the surface area of the inner wall of the overnight channel is larger than that of the through openings at the two ends of the overnight channel.

The utility model discloses compare with common soil heat source heat pump's heat exchange line, have following beneficial effect: the whole heat source circulating pipe is divided into an upper-section pipeline and a lower-section pipeline which are respectively used for supplying heat to a heat pump unit and absorbing heat in a soil source, the lower-section pipeline is vertically arranged, so that the lower-section pipeline can absorb the heat of the soil source in a deeper layer, an outer extension plate and an inner extension plate are respectively welded and installed on the outer edge and the inner cavity wall of the lower-section pipeline, the outer extension plate and the inner extension plate are both made of heat-conducting metal materials, the contact area between the outer part of the lower-section pipeline and the soil heat source can be greatly increased through the outer extension plate, the contact area between the inner part of the lower-section pipeline and a heat exchange medium can be greatly increased through the inner extension plate, the heat absorption and the heat release can be increased through the lower-section pipeline, the heat exchange medium in the lower-section pipeline can be, the temperature rise speed of the heat exchange medium can be greatly accelerated while the heat exchange medium in the underground section pipeline ensures a certain flow rate; moreover, set up aforementioned underground segment pipeline as circuitous setting, can let the occupation land area of whole underground segment pipeline regularly like this, furthest's increase underground segment pipeline's the degree of depth to and occupy the volume of land, thereby further increase underground segment pipeline's heat exchange efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional structure view of the water inlet section pipe and the heat exchange pipe in fig. 1.

Fig. 3 is a partially enlarged structural diagram of a in fig. 1.

Wherein, the heat pump system comprises a heat source circulating pipe 1, an upper section pipeline 1-2, a lower section pipeline 2-a heat pump unit 3, an outer extension plate 4, an inner extension plate 4, a water inlet section pipeline 1-21, a communication elbow 1-22, a heat exchange pipeline 1-23, a cylindrical through hole 5 and a liquid passing channel 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1, fig. and fig. 3, a heat exchange pipeline of a soil heat source heat pump is characterized in that: the heat source circulating pipe comprises a heat source circulating pipe 1, wherein the heat source circulating pipe 1 comprises an upper section pipeline 1-1 and a lower section pipeline 1-2, the upper section pipeline 1-1 is in heat conduction connection with a heat pump unit 2, the lower section pipeline 1-2 is in a vertical pipe arrangement structure, an outer extension plate 3 is arranged on the outer surface of the lower section pipeline 1-2, an inner extension plate 4 is arranged on the inner cavity wall of the lower section pipeline 1-2, the lower section pipeline 1-2 comprises a vertical water inlet section pipeline 1-21, the downstream section of the water inlet section pipeline 1-21 along the water flow direction is communicated with a vertical heat exchange section pipeline 1-23 through a communication elbow pipe 1-22, the downstream section of the heat exchange section pipeline 1-23 along the water flow direction is communicated with a vertical water outlet section pipeline 1-24 through the communication elbow pipe 1-22, the outer extension plates 3 positioned on the outer walls of the heat exchange section pipes 1 to 23 are obliquely arranged upwards.

In this embodiment, firstly, the whole heat source circulation pipe 1 is divided into an upper-stage pipe 1-1 and an upper-stage pipe 1-2 for supplying heat to the heat pump unit and absorbing heat in the soil source, respectively, the upper-stage pipe 1-2 is arranged in a vertical layout, so that the upper-stage pipe 1-2 can absorb the heat of the soil source in a deeper level, an outer extension plate 3 and an inner extension plate 4 are welded and installed on the outer edge and the inner cavity wall of the upper-stage pipe 1-2, respectively, the outer extension plate 3 and the inner extension plate 4 are both made of heat-conducting metal materials, the contact area between the outside of the upper-stage pipe 1-2 and the soil heat source can be greatly increased through the outer extension plate 3, the contact area between the inside of the upper-stage pipe 1-2 and the heat exchange medium can be greatly increased through the inner extension plate 4, so that the heat absorption and heat release can be increased through, therefore, the heat exchange medium in the upper-section pipeline 1-2 can be heated more quickly, the heat exchange efficiency is improved, and the temperature rise speed of the heat exchange medium can be greatly accelerated while the heat exchange medium in the upper-section pipeline 1-2 ensures a certain flow rate; furthermore, the above-mentioned upper section pipeline 1-2 is set to be in a circuitous arrangement, so that the occupied land area of the whole upper section pipeline 1-2 can be set to be a certain time, the depth of the upper section pipeline 1-2 is increased to the maximum extent, and the occupied land volume is increased, so that the heat exchange efficiency of the upper section pipeline 1-2 is further increased, meanwhile, the outer extension plate 3 is set to be inclined upwards, the installation is more convenient, and the situation that soil cannot enter between the adjacent outer extension plates 3 in the process of placing the pipeline into the ground for filling is prevented.

It should be noted that the water inlet section pipes 1 to 21 and the heat exchange section pipes 1 to 23 have the same structure, and the heat source circulation pipe 1 is made of a material with heat metal.

Example 2

On the basis of the embodiment 1, at least three communication bent pipes 1-22 are respectively arranged on the upper layer and the lower layer of the soil, wherein at least one upper layer is arranged, at least two lower layers are arranged, and the communication bent pipes 1-22 of the upper layer and the lower layer are bent oppositely, so that the heat exchange medium can be ensured to flow downwards to the ground and flow upwards to the bottom surface, meanwhile, the upper layer and the lower layer are shown below the ground, the upper layer is further away from the ground, and the lower layer is further away from the ground.

Example 3

On the basis of embodiment 2, a through hole 5 is formed in the plate body of the outer extension plate 3, the through hole 5 is a cylindrical through hole 5, and the axis of the through hole 5 is vertically arranged. Soil can enter the through holes 5, so that the contact area of the outer extension plate 3 and the soil is increased, and the heat exchange efficiency is improved.

Example 4

On the basis of embodiment 3, the plate body of the inner extension plate 4 is provided with at least two through liquid passing channels 6, the liquid passing channels 6 are cylindrical, the axis of each liquid passing channel 6 is parallel to the water flow direction in the underground section pipeline 1-2, and the surface area of the inner wall of each liquid passing channel 6 is larger than the area of through openings at two ends of each liquid passing channel 6, so that the contact area between the inner extension plate 4 and a heat exchange medium can be increased in the process that the heat exchange medium flows in the underground section pipeline 1-2, and the heat exchange efficiency is further increased.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A soil heat source heat pump heat exchange pipeline is characterized in that: the heat pump The outer extension plates (3) positioned on the outer wall of the heat exchange section pipelines (1-23) are obliquely arranged upwards.

2. The soil heat source heat pump heat exchange pipeline according to claim 1, characterized in that: the number of the communication bent pipes (1-22) is at least three, the communication bent pipes are respectively arranged on the upper layer and the lower layer of the soil, the upper layer is at least provided with one, the lower layer is at least provided with two, and the communication bent pipes (1-22) on the upper layer and the lower layer are oppositely bent.

3. The soil heat source heat pump heat exchange pipeline according to claim 1, characterized in that: the plate body of the outer extension plate (3) is provided with a through hole (5).

4. The heat exchange pipeline of the soil heat source heat pump as claimed in claim 3, characterized in that: the through hole (5) is a cylindrical through hole (5), and the axis of the through hole (5) is vertically arranged.

5. The soil heat source heat pump heat exchange pipeline according to claim 1, characterized in that: and a through liquid passing channel (6) is arranged on the plate body of the inner extension plate (4).

6. The soil heat source heat pump heat exchange pipeline according to claim 5, characterized in that: the number of the liquid passing channels (6) is at least two, the liquid passing channels (6) are cylindrical, and the axis of each liquid passing channel (6) is parallel to the direction of water flow in the underground pipeline (1-2).

7. A soil heat source heat pump heat exchange pipeline according to claim 5 or 6, characterized in that: the surface area of the inner wall of the liquid passing channel (6) is larger than the area of the through openings at the two ends of the liquid passing channel.