CN201593889U

CN201593889U - Novel device of ground source heat pump ground arrangement

Info

Publication number: CN201593889U
Application number: CN2010201051686U
Authority: CN
Inventors: 易治平
Original assignee: Changsha Polar Bear Energy Saving & Environmental Protection Technology Co Ltd
Current assignee: Changsha Polar Bear Energy Saving & Environmental Protection Technology Co Ltd
Priority date: 2010-02-01
Filing date: 2010-02-01
Publication date: 2010-09-29
Anticipated expiration: 2020-02-01

Abstract

The utility model relates to a novel device of ground source heat pump ground arrangement, which comprises reverse return pipes, a return header, loops, U-shaped pipes and a supply header. The U-shaped pipes 5 and the loops 4 form branched pipes, and horizontal branched pipes are connected in series. In case of more horizontal branched pipes, adjacent two or three horizontal branched pipes are grouped to be mutually connected in series, and the series-connected branched pipes are longitudinally connected in parallel. One end of the parallel-connected branched pipes is connected to the supply header 3, while the other end is connected to the return header 2, and lastly the two ends are connected to a main pipe on the outer side via the reverse return pipes 1. The novel device adopting the manner of combining series connection and parallel connection of ground arrangement is capable of sufficiently utilizing advantages of both connections, guaranteeing balance of water flow in a pipeline system, and obtaining better heat exchange effect.

Description

A kind of ground buried pipe of ground source heat pump is arranged new equipment

Technical field

The utility model relates to a kind of ground buried pipe of ground source heat pump and arranges new equipment.The arrangement that this device adopts ground pipe laying connection in series-parallel to combine can guarantee discharge balance in the pipe laying, changes the flow regime of in-pipe flow, obtains better heat exchange effect.

Background technology

Earth source heat pump is a kind of highly effective energy-conserving environmental-protecting type air-conditioning system of utilizing underground geothermal using resource can heat supply can freeze again.Ground pipe laying earth-source hot-pump system is that earth-source hot-pump system is modal a kind of, and ground heat exchanger is the core of its design.The flow regime of fluid mainly is a laminar flow in the ground heat exchanger, and the loop form that fluid flows has series connection and two kinds of parallel connections.Series system generally need adopt larger-diameter pipe laying, so unit length pipe laying heat exchange amount is a little more than parallel way, and the air that accumulates in the pipe is discharged easily; Because system's caliber is big, the temperature low country anti-icing fluid that need fill is many in the winter time, thereby cost is higher; Pipe-line system can not be oversize, otherwise the SR loss is too big.Generally with the pipe laying of less caliber, the tube fluid flow regime is mainly turbulent flow to parallel way, the heat exchange efficiency height, and required anti-icing fluid is few, cost is low.But must be noted that in the design and installation and guarantee that the tube fluid flow velocity is higher, with abundant discharge air, the length of each parallel pipeline is consistent as far as possible, to guarantee each shunt circuit identical flow is arranged, and guarantees that the import of each shunt circuit has identical pressure with outlet.So the utility model just proposes a kind of series-parallel novel ground buried pipe of ground source heat pump and arranges new equipment, can bring into play the comprehensive advantage of series-parallel system.

Summary of the invention

The technical problem that the utility model need solve: the arrangement that this device adopts ground pipe laying connection in series-parallel to combine, can guarantee discharge balance in the ground heat exchanger, and make the interior current of pipe laying be in turbulent condition, the cancellation balanced valve, the comprehensive heat exchange effect of raising system, reduce the antifreezing circulation liquid flow, reduce system cost.

Operation principle of the present utility model: from project practices at home and abroad, in, buried pipe adopts parallel way more, the shallow embedding pipe adopts the many of series system.Series system generally need adopt larger-diameter pipe laying, and pipe-line system can not be oversize, otherwise the SR loss is too big; Parallel way is generally used the pipe laying than minor diameter, and the tube fluid flow velocity is bigger, and the heat exchange effect is better, but corresponding fluid loss also can be bigger.So the utility model just proposes a kind of mode that adopts connection in series-parallel to combine, and then can make full use of both advantages, can guarantee the balance of pipe-line system discharge, obtains better heat exchange effect, reduce the cost of system.

The technical solution of the utility model: the utility model is that a kind of ground heat exchanger is arranged new technology, the mode that adopts connection in series-parallel to combine, confession, backwater collector adopt DN40～DN100 pipe, arm adopts the HDPE pipe laying of DN15～DN40, pipe laying depth H is 50m～120m, the level interval L1 of U type pipe vertical shaft is 4.5m～7m, and the longitudinal pitch L2 of U type pipe vertical shaft is 4m～7m.

The mode of being connected in series of described ground heat exchanger is that the U type ground pipe laying in 2～4 wells of adjacent vertical layout or lateral arrangement adopts and is connected in series, and in series adopting between the pipe laying that adjacent transverse is arranged or vertically arranged is connected in parallel.

Level interval L1 between the ground pipe embedded well of described vertical layout is 4.5m～7m, and the longitudinal pitch L2 of U type pipe vertical shaft is 4m～7m.

The diameter of the U type pipe in the ground pipe laying of described series connection is 40mm～60mm, and the diameter of the U type pipe in the ground pipe laying of parallel system is 20mm～50mm.

Described confession, backwater collector adopt the pipe of DN50～DN100, and arm adopts the HDPE pipe laying of DN20～DN40.

Described adjacent transverse loop (4) and U-shaped pipe (5) be capable of being combined to become the arm series connection.

Described adjacent vertical loop (4) and U-shaped pipe (5) be capable of being combined to become the arm parallel connection.

Described adjacent transverse loop (4) and U-shaped pipe (5) are combined into the horizontal range 4.5m～7m between the arm.Adjacent vertical loop (4) and U-shaped pipe (5) are combined into arm apart from 4.0m～7.0m.

The vertical shaft degree of depth that described placement loop (4) and U-shaped pipe (5) are combined into arm is 30m～120m.

The pipe laying series connection of described ground need be determined according to the geological prospecting test data with the selection mode of joint number in parallel.

Do not need to arrange pressure and flow balance valve in the pipeline of described ground pipe laying series-parallel system, simplified system.

The utility model is a kind of ground buried pipe of ground source heat pump arrangement apparatus in sum, have simple in structure, easy to manufacture, cost is low, can long-time running, advantage such as Maintenance free, can propose good technical support for applying of earth source heat pump, and reach purpose of energy saving.

Description of drawings

Fig. 1 is a placement technique schematic diagram of the present utility model

Fig. 2 is a ground of the present utility model pipe laying branch road series connection schematic diagram.

Fig. 3 is the arm schematic diagram of the utility model buried pipe ring road and the combination of U-shaped pipe.

In the accompanying drawing 1,1-supplies with collector, 4-loop, 5-U shape pipe with journey return duct, 2-return header, 3-.

The specific embodiment

Below in conjunction with accompanying drawing, describe the specific embodiment that the ground pipe laying is arranged in detail.

Referring to shown in Figure 1, U-shaped pipe 5 and loop 4 are formed arm, the arm series connection of horizontal direction, if the arm of horizontal direction is more, then according to adjacent two or three one group series connection, the arm after the series connection is in parallel in the vertical, and back in parallel connects on one side supplies with collector 3, connect return header 2 on one side, adopt the house steward who connects the outside with journey return duct 1 at last.

Referring to shown in Figure 1, do not need to be provided with water valve and balanced valve between the buried pipeline of described connection in series-parallel.

Referring to shown in Figure 1, the fluid flow state of pipe laying inside, described ground approaches turbulent flow, so just can improve the comprehensive heat-exchange system of system, improves the efficient of system, reduces cost.

Referring to shown in Figure 2, a kind of ground buried pipe of ground source heat pump is arranged new equipment, comprise ground pipe laying, perpendicular pipe embedded well, the U type pipe in the pipe embedded well, the connecting pipe between the U type pipe; The number needs of described series connection U type pipe will be determined according to the geological prospecting test parameter.The diameter of the U type pipe in the ground pipe laying of described series connection is 40mm～60mm, and the diameter of the U type pipe in the ground pipe laying of parallel system is 20mm～50mm; The degree of depth of described ground pipe embedded well is 30m～120m.

Referring to shown in Figure 3, the diameter of described buried pipe U-shaped pipe is 40mm～60mm, and length of run is 60m～240m.

Claims

1. a ground buried pipe of ground source heat pump is arranged new equipment, it comprises with journey return duct (1), return header (2), supplies with collector (3), loop (4) and U-shaped pipe (5), it is characterized in that: loop (4) and U-shaped pipe (5) are combined into arm, and the arm connection in series-parallel combines.

2. a kind of ground buried pipe of ground source heat pump according to claim 1 is arranged new equipment, it is characterized in that: described adjacent transverse loop (4) and U-shaped pipe (5) are combined into the arm series connection.

3. a kind of ground buried pipe of ground source heat pump according to claim 1 is arranged new equipment, and it is characterized in that: described adjacent vertical loop (4) and U-shaped pipe (5) are combined into the arm parallel connection.

4. a kind of ground buried pipe of ground source heat pump according to claim 1 is arranged new equipment, it is characterized in that: described adjacent transverse loop (4) and U-shaped pipe (5) are combined into horizontal range between the arm apart from 4.5m～7m, and adjacent vertical loop (4) and U-shaped pipe (5) are combined into arm apart from 4.0m～7m.

5. a kind of ground buried pipe of ground source heat pump according to claim 1 is arranged new equipment, and it is characterized in that: the vertical shaft degree of depth that described placement loop (4) and U-shaped pipe (5) are combined into arm is 30m～120m.