CN106170665A

CN106170665A - Including the ground heat-exchange system of geothermal heat exchanger and correlation technique

Info

Publication number: CN106170665A
Application number: CN201380081627.8A
Authority: CN
Inventors: 保罗·W·苏维
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-15
Filing date: 2013-10-15
Publication date: 2016-11-30
Also published as: CA2927681C; AU2013403337A1; AU2013403337B2; CA2927681A1; WO2015057207A1; EP3066400A1; JP2016538526A; CR20160218A

Abstract

Providing a kind of ground heat-exchange system, this ground heat-exchange system includes geothermal heat exchanger and distribution system, and wherein geothermal heat exchanger is positioned in the earth, and distribution system is attached to geothermal heat exchanger, to pass water through geothermal heat exchanger circulation during operation.Distribution system can include supply lines, return line and circulating pump, so that water inner-fluid chamber circulation by geothermal heat exchanger via supply lines and return line.Distribution system may also include vent valve and filling vias, wherein vent valve is for discharging gas from distribution system, filling vias is configured to according to the water from the water leakage or geothermal heat exchanger of geothermal heat exchanger to the conversion of gas, the inner-fluid chamber of automatic water addedly source heat exchanger.Additionally provide other ground heat-exchange systems and method.

Description

Including the ground heat-exchange system of geothermal heat exchanger and correlation technique

Technical field

The disclosure is for the ground heat-exchange system including geothermal heat exchanger and utilizes the earth as heat sink and/or thermal source Correlation technique

Background technology

Various ground heat-exchange system (sometimes referred to as geothermal system) is it is well known that include that closed-loop system and open type are stood Well system.Ground heat-exchange system can be summarized as the heating for inner space and cooling system, wherein, when heating inner space The earth is utilized as thermal source and/or to utilize the earth as heat sink when cooling down inner space.In addition to miscellaneous part, knownly The parts of heat-exchange system generally include heat pump, geothermal heat exchanger and distribution system.A lot of ground heat-exchange system utilizes gas Road is as distribution system, and utilizes polyethylene catheter as geothermal heat exchanger in the earth.But, there is various lacking in this system Fall into and not enough.For example, as it is known that resource loop is all costly, be difficult to install, need poisonous chemicals and appearance on many ground of system Easily break down.In addition, these system overhaul difficulties, and, if needing or expecting extra heating or cooling capacity, also difficulty To expand or to expand.It is generally acknowledged that these factors or other factors are current position heat-exchange systems and geothermal energy resources are not filled Divide the main cause utilizing.

Content of the invention

Embodiment described herein provides ground heat-exchange system and the method thereof including geothermal heat exchanger, These methods utilize the earth as heat sink and/or thermal source, thus provide for house, building or other structures and heat and/or cold But function.Geothermal heat exchanger is particularly strong and is easily installed, and can reconfigure, with provide multi-functional heating and/ Or cooling system.In some cases, geothermal heat exchanger is configured to the form of the deep matrix component of such as stake, this deep matrix component Can drive or otherwise be positioned in the earth, and be alternatively arranged as structure support structure in addition to heating and refrigerating function are provided Part.In addition, in some embodiments, provide filling vias, with heat transmission medium from the ground leakage of resource loop or other During loss, with this fluid filling supplementing or the ground resource loop loading this system.

According to an embodiment, ground heat-exchange system can be summarized in and include geothermal heat exchanger and distribution system, wherein, Geothermal heat exchanger is for limiting the canister form of inner-fluid chamber, and distribution system is attached to geothermal heat exchanger, thus Make heat transmission medium (preferably water) by circulation in the inner-fluid chamber of geothermal heat exchanger during operation.Distribution system can wrap Including supply lines and return line, wherein, heat transmission medium is delivered to geothermal heat exchanger by supply lines, and return line is from ground Source heat exchanger regains heat transmission medium.Distribution system may also include filling vias, and this filling vias is for being situated between according to heat transfer Matter is automatic with additional heat transmission medium addedly source heat exchanger from the leakage of the canister of geothermal heat exchanger, its In, in some cases, under conditions of not damaging, canister is also easy to reveal or easily affected by leakage.

In some cases, ground heat-exchange system can operate to provide heating function and/or refrigerating function together with heat pump, For example, be building or other structures provide heating and/or refrigerating function.Ground heat-exchange system can be configured in the heating mode phase Between from the earth absorb heat and/or during refrigerating mode by heat dissipation to the earth.

Supply lines, return line and geothermal heat exchanger can limit ground resource loop jointly, and filling vias can wrap Include check-valves, thus exceed selected threshold in response to the pressure reduction existing through check-valves and water will be supplied guide to source, ground from supplying water source In loop.In the case that water is revealed from geothermal heat exchanger or the water in ground resource loop is converted into gas, ground resource loop Operation pressure can be reduced to below threshold value.The upstream side of check-valves can connect with the water fluid without barrier of supplying supplied in water source Logical.Distribution system may also include vent valve to discharge the gas from distribution system.Vent valve can be located at or closely resource loop In peak or absolute altitude at.

The canister of heat exchanger can be deep matrix component.For example, canister can be the deep base structure of pile form Part or other bearing carriers.Deep matrix component can include the auger structure being positioned at its lower end to improve beating property.Deep matrix component May also include the connected structure being positioned at its upper end, this connected structure is used for being attached to swivelling pile driver system or other deep bases peace Dress system.

The canister of geothermal heat exchanger can include tubular shell and the end cap of steel, holds to limit the fluid generally closing off Device.The canister of geothermal heat exchanger can be deep matrix component or bearing carrier, for example anchoring piece, the use for superstructure Base support or soil conservation element in structure.The canister of geothermal heat exchanger can include tubular structure, this tubulose Structure has outer surface and inner surface, and wherein, outer surface has a common boundary with the earth, and inner surface is exchanged by ground source heat with during operation The water contact of device circulation.

In some cases, the supply lines of fuid distribution system includes outlet, so that heat transmission medium to be discharged into source, ground In the inner-fluid chamber of the canister of heat exchanger, and return line includes entrance, with from the metal of geothermal heat exchanger The inner-fluid chamber of container is regained heat transmission medium.In some cases, the entrance of the outlet of supply lines and return line Can each be positioned at differing heights along the longitudinal length of source heat exchanger.In addition, the outlet of supply lines and the line of return In the top of the inner-fluid chamber that the entrance on road each can be located at the canister of geothermal heat exchanger.In other cases, The outlet of supply lines each can be located at the relative end of geothermal heat exchanger with the entrance of return line.Supply lines Outlet and the entrance of return line can offset from the canister lower end of geothermal heat exchanger, so that the inside of canister Fluid cavity the latter half is only occupied by the column of heat transmission medium.

According to another embodiment, ground heat-exchange system can be summarized in the geothermal heat exchanger including being positioned in the earth and divide Match system, wherein, geothermal heat exchanger includes the canister limiting inner-fluid chamber, and distribution system is attached to ground source heat exchange Device, so that water is circulated by geothermal heat exchanger during operation.Distribution system can include supply lines, return line and follow Ring pump, so that water inner-fluid chamber circulation by geothermal heat exchanger via supply lines and return line.Distribution system is also Can be at vent valve and filling vias, wherein, vent valve is for discharging the gas from distribution system, and filling vias is configured to Water, in the case that geothermal heat exchanger is revealed or the water geothermal heat exchanger is converted into gas, automatically supplies source, ground with water The inner-fluid chamber of heat exchanger.Ground heat-exchange system can operate together with heat pump, to provide heating function and/or cooling work( Can, and can be configured to during heating mode from the earth absorb heat and/or during refrigerating mode by heat dissipation to greatly Ground.

According to another embodiment, the method for installation ground heat-exchange system can be summarized in and include: by least one ground source heat Interchanger is installed in the earth, and geothermal heat exchanger includes canister, and this canister has the outer surface having a common boundary with the earth And limit the inner surface of inner-fluid chamber；Via fuid distribution system, at least one geothermal heat exchanger is attached to heat pump, Fuid distribution system includes supply lines, return line and circulating pump, to pass water through geothermal heat exchanger during operation Inner-fluid chamber circulates, thus absorbs heat and/or by heat dissipation during refrigerating mode from the earth during heating mode In the earth；And, fuid distribution system is attached to water source, enables to certainly employ in the case of water loss supply water Supply heat exchanger.

The method may also include with arranged in series, is arranged in parallel or arranged in series and the combination that is arranged in parallel are by source, multiple ground Heat exchanger is attached to heat pump.The method may also include and obtains performance data from multiple geothermal heat exchangers, and by one or many Individual supplementary geothermal heat exchanger is installed in the earth, and is based at least partially on the expectation demand of performance data and heat pump, One or more supplementary geothermal heat exchangers are attached to heat pump.The method may also include the ground source heat supplementing at least one Interchanger is installed in the earth, and the change of the expectation demand in response to heat pump, by least one ground source heat supplementing exchange Device is attached to heat pump.At least one geothermal heat exchanger is installed in the earth can include at least one source, ground with installation system Heat exchanger is pushed in the earth, or navigates at least one geothermal heat exchanger in the chamber of preboring in the earth.

According to another embodiment, operatively the method for heat-exchange system can be summarized in and include: pass water through ground resource loop Circulation, to absorb heat and/or by heat dissipation to the earth during refrigerating mode from the earth during heating mode, source, ground Loop includes at least one geothermal heat exchanger with metal fluid container, and wherein, metal fluid container has to be handed over the earth The outer surface on boundary and the inner surface contacting with water during operation；And water from least one geothermal heat exchanger reveal or Water in ground resource loop, in the case that gas converts, will be supplied water and be incorporated in ground resource loop.

Operatively the method for heat-exchange system may also include at least one geothermal heat exchanger and surround this at least one The earth of individual geothermal heat exchanger carries out destressing.Ground resource loop may be coupled to heat pump with heat exchanger exchanged heat therein Amount, and at least one geothermal heat exchanger and surround the earth of this at least one geothermal heat exchanger carry out destressing can Including pass water through the circulation of at least one geothermal heat exchanger with circulating pump.During destressing, heat pump can be running status Or non-operating state.Pass water through the circulation of at least one geothermal heat exchanger with circulating pump can include making water in such volume flow Being circulated by least one geothermal heat exchanger under Su, this volumetric flow rate is less than the average volume stream of the circulation of the water when operation of heat pump Speed.To at least one geothermal heat exchanger and surround the earth of this at least one geothermal heat exchanger and carry out destressing and can include Discharge water and the supplementary water different with the water discharged from mean temperature is introduced ground resource loop from ground resource loop.Water from At least one geothermal heat exchanger is revealed or the water in ground resource loop will be supplied water and introduce ground in the case of being converted into gas Although resource loop mays include: loses water from least one geothermal heat exchanger, but automatically ground resource loop is maintained operational capacity Place.

Brief description

Fig. 1 is the side view of the ground heat-exchange system including multiple geothermal heat exchanger according to an embodiment.

Fig. 2 is the side view of the ground heat-exchange system including multiple geothermal heat exchanger according to another embodiment.

Fig. 3 is the side view of the ground heat-exchange system including multiple geothermal heat exchanger according to another embodiment.

Detailed description of the invention

In the following description, some details are illustrated to provide the comprehensive understanding to various disclosed embodiments. But, it will be appreciated by people skilled in the art that can in the case of neither one or these details multiple or Person otherwise, parts, material etc. put into practice embodiment.In other cases, it is not shown or described in detail and underground heat Known features that exchange system and deep matrix component are associated and equipment and the installation method being associated and using method, in order to avoid not Obscure the description to embodiment necessarily.

Unless the context otherwise requires, otherwise, in specification and appended full text, word " includes (comprise) " and variant, such as " include (comprises) " and " including (comprising) " can be construed to open , non-exclusive implication, i.e. be construed to " including but not limited to ".

In this specification full text, refer at least one embodiment party with reference to " embodiment " or " embodiment " Formula includes combining specific features, structure or the characteristic that this embodiment describes.Thus, not coordination in the specification Put the phrase " in one embodiment " of appearance or " in embodiments " is not necessarily all referring to same embodiment.Separately Outward, specific features described herein, structure or characteristic can in one or more embodiments in any suitable manner It is combined.

Fig. 1 shows an illustrative embodiments on ground heat-exchange system 10 (commonly known as geothermal system), this ground Heat-exchange system 10 is adapted to pass through during refrigerating mode and to be used as heat sink or will be big during heating mode by the earth or land Ground or land are used as thermal source provides cooling and/or heating function.Ground heat-exchange system 10 includes multiple geothermal heat exchanger 20, Multiple geothermal heat exchangers 20 may be located at the earth 12 in, with during the operation of ground heat-exchange system 10 with the earth 12 exchanged heats Amount.

In some cases, it is possible to use geothermal heat exchanger 20 is squeezed in the earth 12 by installation system, wherein, system is installed System can include for elongate object is positioned at the earth in various known system in any system, for example, the 6th, 386, Shown in No. 295 United States Patent (USP)s, No. 6,942,430 United States Patent (USP) and/or No. 7,950,876 United States Patent (USP) and beating of describing Stake machine, above United States Patent (USP) is both incorporated herein by reference.In other cases, geothermal heat exchanger 20 can be positioned at the earth In 12 preboring chamber in, and can backfill if needed.Geothermal heat exchanger 20 promotes the earth 12 and is included in geothermal heat exchanger In 20 and/or the heat friendship that is moved through between the heat transmission medium 21 (preferably water or predominantly water) of geothermal heat exchanger 20 Change.Heat exchange can need to the earth 12 conveying heat energy and/or to pass through geothermal heat exchanger 20 from the earth from geothermal heat exchanger 20 12 reception heat energy.

Geothermal heat exchanger 20 can be generally elongated structure, and this elongated structure includes the stream with top 24 and bottom 26 Body container 22.Geothermal heat exchanger 20 may be mounted so that its top 24 extends or is projected on the earth 12, or ground source heat Interchanger 20 can be completely buried in the earth 12.In some cases, geothermal heat exchanger 20 may be positioned to top 24 and is projected into On the groove being formed in the earth 12 or depression 14.The top 24 of geothermal heat exchanger 20 can be positioned at surrounding earth 12 At frost line or close at the frost line of surrounding earth 12 or under the frost line of surrounding earth 12.Geothermal heat exchanger 20 Depth of placement can be depending on system 10 installation region weather conditions, greatly 12 soil characteristic and/or the adding of expectation or requirement Heat and/or the magnitude of refrigerating function.

Each in the fluid container 22 of geothermal heat exchanger 20 may each comprise have relative end cap the 34th, 36 shell or Tubular structure 30, the 34th, end cap 36 limits inner-fluid chamber 32 jointly.More specifically, the fluid container 22 of geothermal heat exchanger 20 In each may each comprise shell or tubular structure the 30th, top end cover 34 and bottom cover 36, wherein, top end cover 34 is positioned at heat exchanger At the top 24 of 20 or close to the top 24 of heat exchanger 20, bottom cover 36 is positioned at the bottom 26 of heat exchanger 20 or hands over close to heat The bottom 26 of parallel operation 20.The 34th, shell or tubular structure 30 36 can be collectively forming restriction inner-fluid chamber 32 with relative end cap Enclosed construction.Shell or tubular structure 30 generally can be cylinder or can include other regular or irregular prism shapes, all Such as rectangular prism.The sidewall 42 of shell or tubular structure 30 can include outer surface 46 and inner surface 48, wherein, outer surface 46 with big Ground 12 has a common boundary, and inner surface 48 limits inner-fluid chamber 32, and with geothermal heat exchanger 20 in comprise and/or move during operation Move and contacted by the heat transmission medium 21 (for example, water) of source heat exchanger 20.By this way, heat transmission medium 21 can be with week The thickness of the land enclosed or greatly 12 only spaced-apart sidewalls 42.

Geothermal heat exchanger 20 may also include one or more feature to increase the property squeezed into or to be otherwise easy to ground Source heat exchanger 20 is arranged in the earth 12.For example, each geothermal heat exchanger 20 all can be at its bottom 26s or near its end Hold and at 26, include auger structure 40.Such as another example, each geothermal heat exchanger 20 all can be at its 24s, top or near it Include at top 24 that interface is arranged or structure 44, for coordinating with the installation system of such as piling machine.Installation system can have Rotatable interface, this rotatable interface is designed to allow to engage moment of torsion in the way of rotatable interface is delivered to geothermal heat exchanger 20 The interface being positioned at the top 24 of geothermal heat exchanger 20 (or subsegment of geothermal heat exchanger 20) is arranged or structure 44.Cause And, the rotatable interface of installation system and/or the interface being positioned at the top 24 of geothermal heat exchanger 20 arranges or structure 44 can have The rotatable interface preventing installation system and the interface being positioned at the top 24 of geothermal heat exchanger 20 is had to arrange or between structure 44 The feature rotating against.These features may be disposed to the pattern of radial symmetric, to allow with the random angle in multiple relative angles Degree receives top 24 in rotatable interface.As it is shown in figure 1, that interface is arranged or structure 44 can have substantially is polygon-shaped, for example, But it is not limited to, limit hexagon or the octagon of multiple par.The rotatable interface of installation system can have multiple corresponding flat Smooth portion or feature, thus by receive with such as box spanner the head of nut or bolt similar in the way of receive interface arrangement or Structure 44.

Installation system can have motor or other equipment, this motor or other equipment by arranging via interface or Structure 44 introduces the rotation of geothermal heat exchanger 20 and makes geothermal heat exchanger 20 can be rotatably inserted into the earth 12.Rotation can promote Enter and penetrate in greatly 12 with geothermal heat exchanger 20.Except rotate in addition to or with rotate simultaneously, mounting assembly also can be at Di Yuan Apply downward pressure geothermal heat exchanger 20 to be pushed in the earth 12 on heat exchanger 20.In response to rotation, auger Structure 40 can be against surrounding ground action, deeper introducing the bottom 26 of geothermal heat exchanger 20 in the earth 12, thus promotees Enter and penetrate in greatly 12.As it can be seen, bottom cover 36 can have substantially sharp-pointed shape, this substantially sharp-pointed shape can be three Dihedral, cone, pyramid etc., from contributing to penetrate the earth 12 during below geothermal heat exchanger 20 shift earth.

Top end cover the 34th, bottom cover the 36th, auger structure 40 and/or interface arrange or structure 44 can be and shell or tubulose The separate piece that the sidewall 42 of structure 30 separates, and can by welding, brazing filler metal, screw thread, chemical action or adhesive bond and/ Or additive method is fixed to sidewall 42.Alternately, sidewall the 42nd, top end cover the 34th, bottom cover the 36th, auger structure 40 and/or connect Mouth is arranged or structure 44 can be formed as single-piece each other.In No. 6,386,295 United States Patent (USP), No. 6,942,430 United States Patent (USP) And/or carry with describing to be combined with geothermal heat exchanger 20 described herein shown in No. 7,950,876 United States Patent (USP) The top end cover of confession the 34th, bottom cover the 36th, auger structure 40 and/or interface are arranged or the example of structure 44 and be used for installing this ground The exemplary mounting system of source heat exchanger 20, three above U.S. Patent application is all expressly incorporated herein again by quoting.Equally Ground, geothermal heat exchanger 20 can include deep base fabric put, pipe laying, various mounting characteristics known in the field such as piling arrangement Or the arbitrary characteristics in structure and/or soil shine-through feature.

In some embodiments, the shell of each in geothermal heat exchanger 20 or tubular structure 30 can be by all Such as steel or other metal materials, stake that the material with of a relatively high thermal conductivity is formed.Shell or the side of tubular structure 30 Wall 42 and the earth 12 between heat conductivity can promote the earth 12 and geothermal heat exchanger 20 in each between heat exchange.Outward The sidewall 42 of shell or tubular structure Preferably also by such as steel or other metal materials, material firm in structure formed. This is so that can be with may be not suitable for for the stake being made up of the other materials of such as concrete or other deep based structures Technology, source heat exchanger 20 is squeezed into the earth 12.Steel can more effectively withstand shocks load, the static(al) relating to tensile stress Load manner etc..When selecting the material being used for shell or tubular structure 30, tensile strength, compression strength, elasticity, thermal conductivity, Thermal expansion and corrosion resistance can all be taken into account.

In some embodiments, can be by shell or tubular structure 30 and relative end cap the 34th, 36 fluid jointly limiting Container 22 can be piling bar or other deep based structures.Steel or other similar materials can provide relatively high degree of heat to lead Rate and high structural strength, so that geothermal heat exchanger 20 can provide and the effective heat exchange between the earth 12, and, if any Expect, provide structure support to pedestal or other structures.

The heat radiation of geothermal heat exchanger 20 and/or heat absorption capacity substantially can be proportional to the length of geothermal heat exchanger 20. In some cases, fluid container 22 can be formed by some or section.According to some embodiments, for example, by by multiple Tubular structure 30 is fixed together and forms geothermal heat exchanger 20 and can obtain and 12 deeper penetrate the earth.For example, such as Fig. 1 Shown geothermal heat exchanger each includes two that the connector 50 having via such as thread connector is linked together Independent shell or tubular structure 30.In some embodiments, can be by two or more shells or tubular structure 30 Being connected together, thus forming the fluid container 22 of elongated, the fluid container 22 of this elongated is well suited for penetrating the earth 12 to bigger The length of each shell or tubular structure 30 is remained simultaneously and is suitable for transport, storage, material process and erector by the degree of depth Make.

Independent shell or tubular structure 30 can include shell segments between about 4 feet and about 40 feet for the length. Pipeline section can have the external diameter or bigger in the range of about 4 inches to about 22 inches.The thickness of the sidewall 42 of pipeline section can be Between about 0.25 inch to about 0.75 inch or bigger.Shell segments can include DOM seamless pipe, and can be by having about The high strength steel of the yield strength between 80ksi and 110ksi is formed.In other cases, shell segments can include having suitably strong Degree and other metal materials of thermal conduction characteristic, including composite, for use as the source, ground of form of the deep matrix component of such as stake Heat exchanger 20.

Longer geothermal heat exchanger 20 can penetrate the earth 12 to the relatively bigger degree of depth, and due to ground source heat exchange The surface area that device 20 contacts with the earth 12 increases, thus can provide bigger heat-exchange capacity.In addition, geothermal heat exchanger 20 is worn Thoroughly geothermal heat exchanger 20 can be made can to reach the subsurface features of the underground water such as moving to the bigger degree of depth, this underground is special Levy the heat transfer that also can improve between the earth 12 and geothermal heat exchanger 20.

In addition, geothermal heat exchanger 20 can include two or more shells or tubular structure 30, these two or more Shell or tubular structure 30 are attached to together to form the fluid container 22 of elongated.The shell or the tubular structure 30 that separate can pass through Thread connector 50 is linked together.No. 13/917,132 co-pending United States Patent (USP) submitted on June 13rd, 2013 Describing the illustrative embodiments of spendable connector in application, wherein, this U.S. Patent application is incorporated by reference into this Literary composition.Certainly, it be also possible to use other connectors 50 known in the field of deep matrix component and Pipe installing part.In some cases, Connector 50 can have tubular form, and this tubular form is sized such that in adjacent shell or tubular structure 30 above one Individual lower end cooperates with the upper end of in adjacent shell or tubular structure 30 following one, thus limits single generally continuous rib Post fluid cavity 32.

Geothermal heat exchanger 20 can be inserted in the earth 12 in modular form.More specifically, first can via rotate, The earth 12 is inserted in hypomere or the bottom 54 of each geothermal heat exchanger 20 by shock, vibration or other mounting techniques.Hypomere or under Portion 54 can be inserted into such degree of depth, i.e. the top of geothermal heat exchanger 20 is exposed to the earth 12 or groove or depression 14 Surface.Then, via connector 50, the adjacent of each geothermal heat exchanger 20 or epimere or top 56 can be fixed to down Section or bottom 54, thus through rotation, clash into, vibration or other mounting techniques be pushed to the earth in, until adjacent or epimere or The major part or overall all buried on top 56.Then, geothermal heat exchanger 20 can be arranged on the exemplary bit shown in Fig. 1 In putting.

In other embodiments, removable connector can be set, be inserted into the earth 12 at hypomere or bottom 54 After in and before being attached adjacent or epimere or top 56, can remove from the hypomere of each geothermal heat exchanger 20 or bottom 54 This removable connector.Then, can use have compared with the different connector (not shown) of low profile, adjacent section is the 54th, 56 attached It is connected together.This connector is not necessarily to accept moment of torsion or be otherwise suitable to coordinate with such as stake installation system, thus without tool The interface shown in the illustrative embodiments of Fig. 1 is had to arrange or structure 44.Therefore, this connector can have less chi Very little, therefore have to penetrating the earth 12 less resistances, thus add the pile drivability of geothermal heat exchanger 20.Can be by making With including for example welding, screw thread, adhesive combine, chemical action combines and/or the various methods of additive method, by this low The connector of profile be attached to each section or part the 54th, 56 shell or tubular structure 30.

Although the 54th, the section of each geothermal heat exchanger 20 56 all can be pushed in the earth 12, but it will also be appreciated that In other embodiments, other installation methods can be used.For example, in some cases, the chamber of preboring can be formed in the earth Receive corresponding geothermal heat exchanger 20, and if any expectation or there is a need to backfill.

Geothermal heat exchanger 20 described herein can be used for expecting in heat dissipation to the earth 12 and/or from the earth In the arbitrarily application of 12 reception heats.This application includes but is not limited to heating and the cooling of building and other structures.In addition, Some action of such as some manufacture processes can produce the derelict used heat of needs.Geothermal heat exchanger 20 described herein can For providing heat sink for these actions.

With continued reference to Fig. 1, ground heat-exchange system 10 may also include be connected to the ground the heat pump 60 of source heat exchanger 20 or other Device.This heat pump can be used for heating and/or cools down building or the structure of such as house, office building or industrial building.Heat pump 60 can be situated between to heat transmission medium 21 discharges heat or from heat transfer according to whether cold or heating by utilizing kind of refrigeration cycle Matter 21 draws heat to realize this function.

As shown in the figure with mentioned above, each geothermal heat exchanger 20 includes fluid container 22, and fluid container 22 includes Have relative end cap the 34th, 36 shell or tubular structure 30, wherein relative to end cap the 34th, 36 collectively define inner-fluid chamber 32.Chamber 32 can have top 33 and bottom 35, and wherein, the top 24 of top 33 closely source heat exchanger 20, bottom 35 is close The bottom 26 of geothermal heat exchanger 20.Heat transmission medium 21 can be located in chamber 32, and can completely or substantially fill out during operation Fill chamber 32.Heat transmission medium 21 is preferably by water or be mainly made up of water, but sediment can be included in some cases, other are harmless Foreign particles and/or environmentally friendly additive.Should avoid using and contain ethylene glycol or other are potential, environmentally harmful The cold-producing medium of material, in order to eliminate the risk that these materials are revealed or leaked in surrounding earth 12 or underground water.

Although the 34th, shell or tubular structure 30 36 can limit the fluid container 22 generally closing off jointly with relative end cap, But as by 58 indicate, shown in region that heat transmission medium 21 leaks, container 22 can easily leak out or easily be affected by leaking. Occur at the various connectors that the leakage of heat transmission medium 21 may be arranged in the structure of such as geothermal heat exchanger 20, example As, at adjacent section the 54th, the connector between 56 of fluid container 22 or relative end cap the 34th, 36 with shell or tubular structure At connector between 30.Advantageously, fluid container 22 can not consider to set up completely liquid-tight container, because described herein System and method the leakage of heat transmission medium 21 or unknown losses can be responsible for.This can reduce the complexity built and install Property and cost.For example, the section of shell or tubular structure 30 the 54th, 56 accuracy that can be directed at and combine during reducing installation, from And make it possible to install in more convenient mode.

The inner surface 48 of shell or tubular structure 30 can limit most of border of inner-fluid chamber 32, and can have and have Help corrosion-inhibiting coating or other process preventing inner surface 48 to be corroded.If it is desired, bottom cover 36 and/or top end cover 34 is interior Surface is equally coated or otherwise processes.

In addition, according to preferred embodiment, heat transmission medium 21 is water or predominantly water.The water capacity easily obtain and when with During limited amount discharge harmless to the earth 12 and surrounding environment.It is therefore not necessary at the internal flow of each geothermal heat exchanger 20 Strict sealing is kept between chamber 32 and surrounding environment.If some water are leaked to the earth 12 from geothermal heat exchanger 20, can To be automatically replenished water.Top end cover 34 can limit sealing with the end of shell or tubular structure 30.But, this seal may Defective and easily affected by leakage.Advantageously, top end cover 34 can be removable, reclosable and/or interchangeable, from And allow relatively easy source heat exchanger 20 ground-to-ground to overhaul.

In the inner chamber 32 of each geothermal heat exchanger 20, the heat transmission medium 21 of circulation provides medium, by this medium Heat-shift between heat pump 60 and geothermal heat exchanger 20, and final and the earth 12 heat-shifts.If handed over by ground source heat The temperature of the heat transmission medium 21 (for example, water) of inner chamber 32 circulation of parallel operation 20 is higher than the temperature of the earth 12, then heat can be from warm The incoming shell of Transfer Medium 21 or tubular structure 30.If generally define the shell of inner-fluid chamber 32 or tubular structure 30 by Such as steel, the material with relatively high thermal conductivity constitute, then heat can be fast along the longitudinal length of shell or tubular structure 30 Speed and advantageously distribute, and can be passed to surround geothermal heat exchanger 20 the earth 12 in.On the contrary, if be situated between by heat transfer In the inner chamber 32 of matter 21, the temperature of the heat transmission medium 21 of circulation is lower than the temperature of the earth 12, then this process is reversed, i.e. hot Measure from the incoming shell of the earth 12 surrounding geothermal heat exchanger 20 or tubular structure 30, and along the longitudinal direction of shell or tubular structure 30 Length is quickly and conveniently distributed, and final incoming heat transmission medium 21.

No matter heat transmission medium 21 is to receive heat or discharge heat, regardless of various location in inner-fluid chamber 32 Presumable temperature difference between fluid, the shell of geothermal heat exchanger 20 or the relatively high thermal conductivity of tubular structure 30 all can Heat is made quickly and efficiently to distribute along the whole longitudinal length of shell or tubular structure 30.For example, if handed over close to ground source heat Heat transmission medium 21 heat of the bottom 26 than closely source heat exchanger 20 for the heat transmission medium 21 on the top of parallel operation 20 much, then From the hotter fluid close to top 24 heat can the adjacent part of incoming sidewall 42, and more rapid from this adjacent part and Effectively being directed to the bottom 26 of geothermal heat exchanger 20, then heat can be in other ways through heat transfer fluid 21 itself Migrate.Therefore, even if some heat transmission mediums 21 in inner-fluid chamber do not have the effective heat transfer of support relative to the earth 12 Ideal temperature difference, the total length of sidewall 42 for the heat transfer of surrounding earth 12 for also can be effective.Therefore, in some feelings Under condition, all heat transmission mediums 21 of comprising in geothermal heat exchanger 20 may be not necessarily recirculated, and in some cases, source, ground Some heat transmission mediums 21 in heat exchanger 20 may be in stagnation in whole operation or relatively stagnate, and to adding hot and cold But the impact that performance causes is very little (if any).

Ground heat-exchange system 10 may also include fuid distribution system 64, and fuid distribution system 64 is attached to geothermal heat exchanger 20, thus make heat transmission medium 21 be circulated by inner-fluid chamber 32 during operation.For this purpose, fuid distribution system 64 can include supply lines 70, thus as by shown in arrow mark 72, heat transmission medium 21 being delivered to geothermal heat exchanger 20. Supply lines 70 can include one or more fluid supplying duct 70a, 70b, 70c of such as various pipeline and flexible pipe, and related The accessory of connection, manifold 74 and/or for heat transmission medium 21 is transported to its of geothermal heat exchanger 20 by route from heat pump 60 His fluid transport component.Fuid distribution system 64 may also include return line 80, with as by shown in arrow mark 82, from ground source heat Heat transmission medium 21 regained by interchanger 20.Return line 80 can include that one or more fluids of such as various pipeline and flexible pipe return Return conduit 80a, 80b, 80c, and be associated accessory, manifold 84 and/or for by route remotely source heat exchanger 20 court Transport other fluid transport component of heat transmission medium 21 to heat pump 60.

Can by use such as corresponding supply lines conduit 70a, 70b, 70c, supply lines 70 appropriate section with And such as corresponding return line conduit 80a, 80b, 80c, the appropriate section of return line 80, make heat transmission medium 21 circulate Enter and the inner-fluid chamber 32 of each geothermal heat exchanger 20, the wherein appropriate section of supply lines 70 and return are flowed out in circulation The appropriate section of circuit 80 all may pass through top end cover 34.Each supply lines conduit 70a, 70b, 70c all can supply via corresponding To line opening 76a, 76b, 76c, heat transmission medium 21 is delivered to the inner-fluid chamber 32 of heat exchanger 20.Similarly, each Return line conduit 80a, 80b, 80c all can be via corresponding return line opening 86a, 86b, 86c from geothermal heat exchangers 20 Inner-fluid chamber 32 aspirate heat transmission medium 21.For each in heat exchanger 20, for example, as it is shown in figure 1, return Line opening 86a, 86b, 86c can position close to the top 33 of inner-fluid chamber 32, and supply lines opening 76a, 76b, 76c can It is positioned to lower than return line opening 86a, 86b, 86c.In addition, for each in heat exchanger 20, return line is led Pipe 80a, 80b, 80c and corresponding return line opening 86a, 86b, 86c size may determine that as much smaller than inner-fluid chamber 32 Cross section so that by when compared with shell or tubular structure 30 relatively thin (for example, at least thin several grades) Heat transmission medium 21 regained by path.For each in heat exchanger 20, supply lines conduit 70a, 70b, 70c and corresponding supply lines opening 76a, 76b, 76c size may determine that as the cross section much smaller than inner-fluid chamber 32, with Make the path by when compared with shell or tubular structure 30 relatively thin (for example, at least thin several grades) introduce heat to pass Pass medium 21.

Because the earth 12 surrounding geothermal heat exchanger 20 without interference can otherwise be attached to heat friendship to lay The heat exchange catheter of the sidepiece of parallel operation 20, inlet ducts or delivery channel, so coupling corresponding supply lines by top end cover 34 Conduit 70a, 70b, 70c and return line conduit 80a, 80b, 80c can promote or be easily installed geothermal heat exchanger 20.Even So, in other embodiments, in corresponding supply lines conduit 70a, 70b, 70c and return line conduit 80a, 80b, 80c Some or all also may be coupled to the sidepiece of heat exchanger 20, rather than pass through top end cover 34.

According to some examples, supply lines opening 76a, 76b, 76c of each geothermal heat exchanger 20 and return line are opened Mouth 86a, 86b, 86c each can be located in the top of inner-fluid chamber 32 of this geothermal heat exchanger 20.In this respect, each Supply lines opening 76a, 76b, 76c of geothermal heat exchanger 20 and return line opening 86a, 86b, 86c all can be from ground source heats The lower end 26 of 20 interchangers offsets, so that the latter half of inner-fluid chamber 32 is only occupied by the column of heat transfer medium.At it In the case of him, supply lines opening 76a, 76b, 76c of each geothermal heat exchanger 20 and return line opening 86a, 86b, 86c All may be located at the opposite end of this geothermal heat exchanger 20 the 24th, at 26.

But, owing to heat exchanger 20 includes by such as steel, fluid that the material with relatively high thermal conductivity is formed Container 22, thus supply lines opening 76a, 76b, the 76c in each heat exchanger 20 it is unnecessary to provide effective heat to pass Pass function and in the bottom 35 of internally positioned fluid cavity 32.As it is shown in figure 1, alternatively, each supply lines opening 76a, 76b, 76c all can be located in top or the half position of heat exchanger 20.By this way positioning supply line opening 76a, 76b, 76c can reduce the cost of geothermal heat exchanger 20 and/or the maintenance contributing to geothermal heat exchanger 20.Nonetheless, each supplies Also all can be located at any position of the interior height along heat exchanger 20 of inner-fluid chamber 32 to line opening 76a, 76b, 76c, It is preferred that be positioned at the height different from corresponding return line opening 86a, 86b, 86c of each heat exchanger 20.Example As in some embodiments, each supply lines opening 76a, 76b, 76c all may be positioned to the phase than each heat exchanger 20 Answer return line opening 86a, 86b, 86c low.(not shown) in an alternative embodiment, positioning can be contrary, and wherein, each supplies It is positioned to higher than corresponding return line opening 86a, 86b, 86c of each heat exchanger 20 to line opening 76a, 76b, 76c.? In this case, each supply lines opening 76a, 76b, 76c may be positioned to be positioned at the top of each corresponding heat exchanger 20 At 33 or close to the top 33 of each corresponding heat exchanger 20, and each return line opening 86a, 86b, 86c all can positions Below corresponding supply lines opening 76a, 76b, 76c.In some cases, each return line opening 86a, 86b, 86c It is all positioned adjacent to or close to top end cover 34, thus reduce and can be used on one or more circulating pumps of cycling hot Transfer Medium 21 Head.

According to some embodiments, supply lines the 70th, return line 80 and geothermal heat exchanger 20 collectively define source, ground Loop, heat transmission medium 21 can be by the circulation of ground resource loop to provide heating and/or refrigerating function.Although being described herein Leakage and the possibility of other fluid loss, but this ground resource loop can be closed-loop system.Fuid distribution system 64 also may be used Including filling vias 90, filling vias 90 is attached to ground resource loop, thus lets out from geothermal heat exchanger 20 at heat transmission medium 21 Use, in the case of revealing or have unknown losses, the heat transmission medium 21 addedly resource loop supplied.Preferably, this supplementary process can be certainly Move and carry out and be not necessarily to obtain close, modification and/or manual operation ground heat-exchange system 10.

As example, supply lines 70 is connectable to supplying of such as urban water main line or water storage box or water receiver Heat exchange medium source 92.The heat exchange medium source 90 supplied can be connected to supply lines 70 by check-valves 94.When the heat friendship supplied Change the pressure differential between medium source 90 and supply lines 70 when meeting or exceeding given threshold value, liftable or open check-valves 94 with The heat exchange medium (for example, water) supplied is allowed to fill or refill ground resource loop.It is also possible to use counterflow prevention apparatus (not show Go out) prevent heat exchange medium 21 from refluxing towards the heat exchange medium source 92 supplied.The heat exchange medium source 92 supplied can be carried out Pressurization, to promote heat transmission medium 21 (for example, water) when group's resource loop stands the pressure drop that be enough to lift or open check-valves 94 Flow into ground resource loop.Therefore, the upstream side of check-valves 94 can be with the heat transfer supplied from the heat exchange medium source 90 supplied Medium in direct fluid communication without barrier.Additionally or alternatively, this heat exchange medium source 92 supplied is connectable to source, ground The return line 80 in loop or other parts.In one or more embodiments, the heat exchange medium source supplied 92 is close to following Ring pump position is attached to ground resource loop, and wherein, circulating pump is used for making heat transmission medium 21 be exchanged by one or more ground source heats Device 20 circulates.

As it is shown in figure 1, fuid distribution system 64 may also include vent valve 96, vent valve 96 is such as along supply lines 70 or return The part on loop line road 80 is connected to the ground resource loop.Vent valve 96 may be designed to discharge the gas from ground resource loop, wherein should Gas can be to be converted into gaseous state by a part for heat transmission medium 21 and produce.Vent valve 96 can include based on relative pressure The check-valves of power release gas, or can have ventilation duct or discharge other devices of gas from ground resource loop.Vent valve 96 can It is located near or at the peak in ground resource loop or absolute altitude.

Heat pump 60 (or similar device) can receive heat transmission medium 21, and available heat pump 60 by return line 80 Heat exchanger receive heat or to heat transmission medium 21 discharges heat from heat transmission medium 21.Then, heat pump 60 can be via confession To circuit 70, heat transmission medium 21 is led back to the inner-fluid chamber 32 of geothermal heat exchanger.Heat pump 60 can include promoting heat transfer Medium 21 is by one or more circulating pump (not shown) of ground resource loop circulation.In the other cases, can be at heat pump 60 Outside one or more circulating pump is set.

Alternately, one or more circulating pumps can be positioned in geothermal heat exchanger 20；However, it is advantageous that can be by One or more circulating pumps are positioned at outside geothermal heat exchanger 20, to keep the inner-fluid chamber being contained in geothermal heat exchanger 20 Structure in 32 is as far as possible simple.So can be easily installed geothermal heat exchanger 20 and/or easy access ground heat-exchange system 10, because of For one or more pumps being carried out through that be can use by the top 24 of geothermal heat exchanger 20, quite restricted access Maintenance.In fact, in one or more embodiments, the inner-fluid chamber 32 of geothermal heat exchanger 20 can avoid supplying accordingly To line opening 76a, 76b, 76c and corresponding any obstacle between return line opening 86a, 86b, 86c, thus contribute to Geothermal heat exchanger 20 and/or maintenance ground heat-exchange system 10 are installed, and relatively allow heat transmission medium 21 (for example, water) Flow without barrier between return line opening 86a, 86b, 86c with corresponding at corresponding supply lines opening 76a, 76b, 76c Dynamic.

Geothermal heat exchanger 20 is suitably adapted for easily expanding system, thus allows to install extra unit to increase installation The thermal heat transfer capability of the system of these additional unit.This geothermal heat exchanger 20 can parallel connection as shown in Figure 1, series connection or such as Link together with combination in parallel, series connection shown in Fig. 2.Advantageously, some embodiments of ground heat-exchange system can include simultaneously The group of the geothermal heat exchanger 20 that connection connects, and may be arranged so that any one group is isolated with other groups, and can be in adding of reducing Walk around or stop using for maintenance during the stage of heat or cooling requirement.

Fig. 2 show ground heat-exchange system 10' illustrative embodiments, wherein, ground heat-exchange system 10' include via Fuid distribution system 64 is connected to multiple geothermal heat exchangers 20 of heat pump 60.As it can be seen, geothermal heat exchanger 20 can be inserted into To the earth 12 in or be otherwise positioned the earth 12 in.Geothermal heat exchanger 20 can be arranged to a line as shown in the figure, become three Dihedral or one-tenth other suitable arrangements any.If geothermal heat exchanger 20 is for supporting building or the basic courses department of structure 98 99, then concrete structure support requires to limit the arrangement of geothermal heat exchanger 20.Under any circumstance, each geothermal heat exchanger 20 can be spaced sufficiently apart valuably, so that each in geothermal heat exchanger 20 is all with efficiency bar the highest or relatively high Make.Thus, each that minimum spacing level comes in source heat exchanger 20 definitely can be used to be adjacent to source heat exchanger with each 20 can be apart from how close.In other cases, some geothermal heat exchangers 20 can closely stack or be arranged to relatively intensive group Group.

Geothermal heat exchanger 20 can be all connected to same heat pump 60 by fuid distribution system 64 or other add hot and cold Radiator cooler.Fuid distribution system 64 can include supply lines 70, thus, as by shown in arrow mark 72, by heat transmission medium 21 It is delivered to geothermal heat exchanger 20.Supply lines 70 can include that one or more fluid supply of such as various pipeline and flexible pipe is led Pipe 70a, 70b, 70c, and be associated accessory, manifold 74 and/or for transporting heat transmission medium 21 from heat pump 60 by circuit Other fluid transport component to geothermal heat exchanger 20.Fuid distribution system 64 may also include return line 80, thus, as by Shown in arrow number 82, regain heat transmission medium 21 from geothermal heat exchanger 20.Return line 80 can include such as various pipeline With one or more fluid conduit systems 80a, 80b of flexible pipe, and be associated accessory, manifold 84 and/or for by circuit by heat Other fluid transport component that Transfer Medium 21 transports towards heat pump 60 remotely source heat exchanger 20.As in figure 2 it is shown, ground source heat Some Tong Guo intermediate conductors 71 coupled in series in interchanger 20, then the group parallel connection of these series connection is to heat pump 60.With Such mode, intermediate conductor 71 can be used simultaneously as the return line of a geothermal heat exchanger 20 and for another The supply lines of geothermal heat exchanger 20.Finally, heat transmission medium 21 can flow through all of geothermal heat exchanger 20, thus with enclose Surrounding earth 12 around each geothermal heat exchanger 20 transmits heat.

Although ground heat-exchange system 10' shown in Fig. 2 has 4 geothermal heat exchangers 20, but, if one or more Circulating pump (not shown) determines size to cause heat transfer medium (for example, water) by supply lines the 70th, return line 80 sufficiently The entirely resource loop limiting with geothermal heat exchanger 20 moves, then can be connected in series, be connected in parallel or to connect, in parallel Combination connects any number of geothermal heat exchanger 20.

See figures.1.and.2, advantageously, one or more geothermal heat exchanger can be added to ground heat-exchange system the 10th, 10' 20, and suitably pipe is grounded source heat exchanger 20 to extend the capacity of system the 10th, 10'.For example, if constructing system the 10th, 10' And operate heat pump 60, to realize concrete heating and/or cooling purpose, then the final needs to heat pump 60 or requirement can be beyond being The initial capacity of system the 10th, 10'.For example, change weather condition or use habit, extension is heated and/or the space that cooled down, Or the too small needs that may result in of the original dimension of only system the 10th, 10' increase heating and/or cold after installation system the 10th, 10' But ability.Can be neighbouring by one or more additional geothermal heat exchangers by the geothermal heat exchanger 20 for example previously installed 20 position, insert or are pushed to advantageously to increase one or more additional geothermal heat exchanger 20 in the earth.It is then possible to To connect and/or to be arranged in parallel, return line 80 and the supply lines 70 from geothermal heat exchanger 20 is connected to one or many Individual additional geothermal heat exchanger 20.It is then possible to the heat being increased by one or more additional geothermal heat exchangers 20 Exchange capacity operates heat pump 60.

Can be relatively easy although being connected in series geothermal heat exchanger 20, but, it in some cases, is arranged in parallel or other Arrangement can provide higher heat transference efficiency.In addition to being arranged in parallel, multiple ground source heat can be used together in every way altogether and hand over Parallel operation 20.For example, one group independently source heat exchanger 20 can be independently connected to heat pump 60 or similar device, so that ground source heat Each offer in interchanger 20 itself and the heat exchange of heat pump 60.For this purpose, heat pump 60 can have multiple inside Heat exchanger (not shown).

Referring again to Fig. 2, system 10' can have supply manifold 74, wherein, the section by supply lines 70 for the supply manifold 74 It is connected to heat pump 60.Supply connection conduit 70a and 70b can be from supply manifold 74 by corresponding geothermal heat exchanger 20 or ground The group of source heat exchanger 20.Thus, the heat transmission medium 21 from heat pump 60 can be directly through to geothermal heat exchanger 20 And each in joint group.So can help to ensure that by each heat transfer receiving in the simultaneously joint group of geothermal heat exchanger 20 Medium 21 is sufficient to carry out effective heat by the group of geothermal heat exchanger 20 relative to the temperature difference of surrounding earth 12 Transmission.

If required, system 10' also can have supply lines valve (not shown), and this supply lines valve is connected to lead to Di Yuan Each in supply lines conduit 70a, 70b of heat exchanger 20.Supply lines valve can be used for control by each supply lines The stream of the heat transmission medium 21 of conduit 70a, 70b, and thus control flows into the heat biography of each in geothermal heat exchanger 20 group Pass the ratio of medium 21.This can be used to the heat transfer in each in geothermal heat exchanger 20 group in parallel of appropriate balance. For example, if it find that perhaps make one of the geothermal heat exchanger 20 heat biography organized due to subterranean strata or other factors of surrounding Pass speed low lower than the heat transfer rate of other groups, then can adjust the supply lines valve being associated and hand over to be decreased to this group ground source heat The stream of the heat transmission medium 21 of parallel operation 20.This can make other geothermal heat exchangers 20 can receive heat transfer Jie from heat pump 60 The greater share of the stream of matter 21, thus more efficiently use with the heat exchanger 20 of bigger thermal heat transfer capability work.

Supply lines valve may further be used to the heat transmission medium complete switching off to one or more of geothermal heat exchanger 20 21 streams, thus effectively this geothermal heat exchanger 20 is disconnected from system 10'.This can be used to make geothermal heat exchanger 20 or simultaneously The geothermal heat exchanger 20 groups of connection can overhaul, or is no longer necessary to or has become irrecoverability mistake for permanent disconnection The at random source heat exchanger 20 of effect or geothermal heat exchanger 20 groups.

Similarly, system 10' can have return manifolds 84, and return manifolds 84 is connected to heat pump by the section of return line 80 60.Each return line conduit 80a, 80b in the simultaneously joint group of geothermal heat exchanger 20 can be from ground source heat exchange The heat transmission medium 21 of device 20 is transferred to return manifolds 84, at return manifolds 84s, from the heat of all geothermal heat exchangers 20 Transfer Medium 21 may then bond together, and is transferred to heat pump 60 by the remainder of return line 80.

Return line valve (non-illustrate) can be set in each in return line conduit 80a, 80b.Return line valve can It is used for replacing supply lines valve discussed above or also using return line valve in addition to supply lines valve discussed above, and return Loop line road valve may also allow for regulating the stream by the heat transmission medium 21 of each in the simultaneously joint group of geothermal heat exchanger 20.Return Circuit valve also can be used together with supply lines valve, thus effectively disconnects geothermal heat exchanger 20 from system 10' as mentioned above.

As previously mentioned, in addition to carrying out heat exchange with the earth 12, geothermal heat exchanger 20 described herein can also be used with Structure support is provided.Thus, geothermal heat exchanger 20 can be used as the bearing carrier of various system.According to various embodiments, This geothermal heat exchanger 20 can be used for supporting the basic courses department of superstructure 98 as shown in Figure 2 and the 99th, is anchored superstructure and/or use Make the parts in soil conservation assembly as shown in Figure 3.

With reference to Fig. 2, exemplarily heat-exchange system 10' includes 4 geothermal heat exchangers 20, this 4 geothermal heat exchangers 20 are used for supporting the part in the basic courses department 99 of superstructure 98, and for example via the forced air system being attached to heat pump 60 Or the space that radiant heating system is in structure 98 provides heating and/or cooling.Superstructure 98 can be including but not limited to Any one in the various buildings such as house, office building, industrial building, storage device, commercial building.Structure 98 can have base Plinth portion 99, wherein basic courses department 99 can be formed by concrete, metal or any other materials.Basic courses department 99 shown in Fig. 2 is only It is illustrative.The basic courses department 99 being supported by geothermal heat exchanger 20 according to the embodiment of the present invention can use various forms Or configuration.

Basic courses department 99 can be located on the ground, or can be located at underground in other embodiments.Therefore, geothermal heat exchanger 20 In the top 24 of each all can be exposed on the surface of the earth 12 or be positioned at groove or depressed part 14, or can be covered Bury, so that the entirety of each in geothermal heat exchanger 20 is fully located under the surface of the earth 12.In the application of deep base or class As application in, in geothermal heat exchanger 20 be each buried in the earth 12 surface number foot under.

In other alternative embodiments, the top 24 of geothermal heat exchanger 20 can be than exposure as shown in Figure 2 Obtain more.For example, as fruit structure 98 will hang on the surface higher than the earth 12, then expectation makes geothermal heat exchanger 20 extend Bigger height on greatly 12.The surface area contacting with geothermal heat exchanger 20 due to the earth 12 is relatively low, thus this Arrangement can reduce geothermal heat exchanger 20 and to the earth 12 transmission heat or transmit heat from the earth 12 to geothermal heat exchanger 20 Ability, but still can expect to meet structure needs.

Can be by using heat pump 60 or the heating of similar device and/or cooling structure 98, wherein, heat pump 60 or similar dress Put and be connected to the ground source heat exchanger 20 by using supply lines 70 and return line 80.Equally, geothermal heat exchanger 20 can be gone here and there Connection connects, as shown in Figure 1 be connected in parallel or as shown in Figure 2 be connected to heat pump 60 with series connection and the combination that is connected in parallel.Cause And, heat pump 60 can via geothermal heat exchanger 20 from the earth 12 reception heats or by heat dissipation to the earth 12, wherein source Heat exchanger 20 also serves as structural bearing supporting member, and wherein, the basic courses department 99 of structure 98 is placed on this structural bearing supporting member.

Heat pump 60 or similar device can provide heating and/or cooling by using various system to structure 98.Such as empty The fluid of gas and water, refrigerant etc. by least a portion circulation of structure 98, thus can be heated or cooled the inside of structure 98. As example, above-described ground heat-exchange system the 10th, 10' and the geothermal heat exchanger 20 being associated can be with other known types Heating system or cooling system be used together, these heating systems or cooling system include forced air heat and cooling system System, hydronic and cooling system and radiation heating and cooling system.

In some embodiments, one or more geothermal heat exchangers 20 can be used as such as bridge or viaduct The anchoring piece of structure.This structure may span across wide gap or other physical features.This structure can have the horizontal development portion crossing over wide gap Point.This horizontal development part can have highway, track, pavement etc..This structure also can have to provide for horizontal development part props up The miscellaneous part holding.This parts can include vertical supporting member and bearing assembly, and wherein, vertical supporting member can be located at horizontal development Any one end of part, bearing assembly is by the length of vertical supporting members support horizontal development part.This structure can be to suspend Type bridge or can benefit from the arbitrary structures in the various structures of the anchoring in the earth 12.

This structure can be directly placed at geothermal heat exchanger 20 in mode similar in the way of the structure 98 shown in Fig. 2 On.Alternately, this structure will not be placed on geothermal heat exchanger 20, but alternative to be handed over by ground source heat via anchor cable Parallel operation 20 supports, and wherein, anchor cable extends to vertical supporting member or other supporting members from the top 24 of geothermal heat exchanger 20 Or the top of feature.Thus, anchor cable can be used as keeping the connector of vertical supporting member in desired orientation, thus balances possibility The inside bending moment being applied on vertical supporting member.

In addition to providing structure support, geothermal heat exchanger 20 may additionally facilitate and from structure, heat energy is dissipated to the earth 12, Or be connectable to heat pump 60 or the similar device of effective efficiency can be provided, it is such as positioned on supporting structure or adjacent supporting structure Heating arrangement and/or cooling structure.Advantageously, for deicing or for other purposes, can heat and be positioned near supporting structure Bridge, highway, pavement and other structures.

In addition to bridge and viaduct, system and method described herein can be additionally used in the structure providing for various structures Supporting and/or heat transfer.This structure includes, but not limited to residential housing, office building, industrial building, commercial building, sky Line, chimney, electric line bar, tower etc..

Referring to Fig. 3, Fig. 3 shows the ground heat exchange series including the geothermal heat exchanger 20 as soil conservation element System 10 ".As shown in Figure 3, geothermal heat exchanger 20 can insert in the earth 12 close to needing amount of soil to be maintained.Permissible Additional geothermal heat exchanger 20 is set in the way of interval, and additional geothermal heat exchanger 20 can be used as wall 100 form Barrier or other end points keeping equipment and/or the anchoring piece of crossing over distance between this geothermal heat exchanger 20.Wall 100 can have the surface in the face of soil, should adjoin with soil in the face of the surface of soil, to help by soil conservation in desired position Put.If required, ground heat-exchange system 10 can limit section or other the bigger soil keeping wall with multiple geothermal heat exchangers 20 Earth keeps system.This geothermal heat exchanger 20 may or may not be arranged to straight line, and may or may not be positioned to erect Straight orientation.Geothermal heat exchanger 20 can provide the structure support that wall will be kept to be held in place by, thus exists soil conservation Appropriate location.In addition, geothermal heat exchanger 20 may also provide can be with other ground heat-exchange systems specifically described herein 10th, The similar mode of 10' is for heating and/or cooling down the heat exchange of purpose.

Although accompanying drawing shows the application of the geothermal heat exchanger 20 with substantially general structure or form, but related The those of ordinary skill in field should immediately recognize that, geothermal heat exchanger 20 can be set to various forms and configuration, and The geothermal heat exchanger 20 of multi-form and configuration group can be incorporated in same ground heat-exchange system and be used together.In addition, this Described in Wen and shown ground heat-exchange system the 10th, 10', 10 " be representational, and person of ordinary skill in the relevant It is to be appreciated that geothermal heat exchanger 20 and ground heat-exchange system the 10th, 10', 10 " can be used for herein not specifically Bright various situations provide structure support.

According to various ground described herein heat-exchange system the 10th, 10', 10 " and geothermal heat exchangers 20, it is possible to provide install Ground heat-exchange system the 10th, 10', 10 " correlation technique, the method includes being installed at least one geothermal heat exchanger 20 the earth In 12, this geothermal heat exchanger 20 includes canister 22, canister 22 have with the earth 12 have a common boundary outer surfaces 46 and Limit the inner surface 48 of inner-fluid chamber 32.In some cases, at least one geothermal heat exchanger 20 is installed to the earth 12 In can include, with such as piling machine or other deep matrix components, equipment is installed or one or more geothermal heat exchangers 20 are pushed away by technology Move in the earth.For example, in some embodiments, one or more geothermal heat exchangers 20 can be positioned at the phase in the earth In the cavity holed in advance answered.

The method may also include, via fuid distribution system 64, at least one geothermal heat exchanger 20 is attached to heat pump 60. Fuid distribution system 64 can include supply lines the 70th, return line 80 and circulating pump, to pass water through ground source heat during operation The inner-fluid chamber 32 of interchanger 20 circulates, thus absorbs heat and/or in the refrigerating mode phase from the earth during heating mode Between by heat dissipation to the earth.The method may also include and fuid distribution system 64 is attached to water source 92, enables to root Automatically geothermal heat exchanger 20 is supplied according to water loss to supply water.Water loss can include from one or more geothermal heat exchangers 20 The middle water revealed or circulated by one or more geothermal heat exchangers changes into gas.Water can for example by filling vias 90 certainly Dynamic interpolation, filling vias 90 is attached to supply lines 70 or return line 80, and is configured to incite somebody to action based on the pressure drop in ground resource loop In fluid drainage extremely resource loop, wherein this pressure drop be enough to open or lift the check-valves 94 being arranged in filling vias 90.Water Can automatically add until ground resource loop is filled into desired operation pressure.Desired operation pressure can be about Scope, the relatively low pressure of 5psi to about 35psi or about 15psi to about 25psi.

This installation method may also include and obtains performance data from one or more geothermal heat exchangers 20, and by one or Multiple supplementary geothermal heat exchangers 20 are installed in the earth, and are based at least partially on performance data and the expection of heat pump 60 This one or more supplementary geothermal heat exchangers 20 are attached to heat pump 60 by demand.In other words, it is possible to obtain performance data is come Assessment existing ground heat-exchange system installation relative to the actual performance of the anticipated demand of heat pump 60, and determine the need for one or Multiple supplementary geothermal heat exchangers 20 meet this demand.The method may also include being seen based on existing ground heat-exchange system The defect examined or calculated is to select the size of the one or more heat exchanger 20 supplementing and/or length.

According to various ground described herein heat-exchange system the 10th, 10', 10 " and geothermal heat exchangers 20, it is possible to provide operatively Heat-exchange system the 10th, 10', 10 " correlation technique, the method includes making water 21 by ground resource loop circulation, thus at heated mould During formula from the earth 12 absorption heats and/or during refrigerating mode by heat dissipation to the earth 12, ground resource loop include to A few geothermal heat exchanger 20, geothermal heat exchanger 20 includes metal fluid container 22, metal fluid container 22 have with greatly The outer surface 46 of boundary, ground 12 and the inner surface 48 contacting with water 21 during operation.The method also includes according to from least Water in one geothermal heat exchanger 20 is revealed or the water in ground resource loop is to the conversion of gas, and will supply water is incorporated into ground automatically In resource loop.In like fashion, although there is this water loss from least one geothermal heat exchanger, but ground resource loop still may be used To maintain operational capacity.

Ground heat-exchange system the 10th, 10', 10 " can operate with cycle or endless form, and gentle in response to changes in demand Wait or the change in terms of other factors, can fluctuate at continuous time period.During operation, due to geothermal heat exchanger 20 and week Enclosing the heat transmission between the earth 12, geothermal heat exchanger 20 and surrounding earth 12 can stand stress.For example, in the refrigerating mode phase Between, due to discharges heat in the earth 12, the temperature of geothermal heat exchanger 20 and surrounding earth 12 can be increased to desired level On.On the contrary, during heating mode, due to from the earth 12 withdrawal heat, the temperature of geothermal heat exchanger 20 and surrounding earth 12 Degree can drop under desired level.

Therefore, in some cases, operatively heat-exchange system the 10th, 10', 10 " method can include source heat exchange over the ground The earth 12 of device 20 and encirclement geothermal heat exchanger 20 carries out destressing.Destressing can include making geothermal heat exchanger 20 and surround The temperature of the earth 12 of geothermal heat exchanger 20 towards or closely heat-exchange system the 10th, the soil near 10 or greatly average Temperature changes.Carry out destressing to geothermal heat exchanger 20 with the earth 12 surrounding at least one geothermal heat exchanger 20 can include For example water 21 is made to be circulated by geothermal heat exchanger 20 with circulating pump.Water 21 can be made to pass through ground source heat with such volumetric flow rate Interchanger 20 circulates, and this volumetric flow rate is less than the average volume flow velocity of the circulation of the water when heat pump 60 runs.In other cases, should Volumetric flow rate can be roughly the same with the average volume flow velocity of the circulation of the water 21 when heat pump 60 runs.

In the other cases, destressing is carried out to the earth 12 of geothermal heat exchanger 20 and encirclement geothermal heat exchanger 20 Can include discharging water 21 from ground resource loop, and the source, water introducing ground of supplying with the mean temperature different from the water 21 of discharge is returned In road.For example, when local resource loop stands stress due to cooling down operation, water 21 can be discharged from ground resource loop, and can draw Enter temperature lower than the water 21 discharged supply water, and make this supply water circulation, thus to geothermal heat exchanger 20 and surrounding Greatly 12 carry out destressing.The water discharged can be used for the purpose of any desired, such as irrigation water.On the contrary, local source is returned It route when heating operation stands stress, water 21 can be discharged from ground resource loop, and the water with recycle ratio discharge can be introduced The higher water of supplying of 21 temperature, thus destressing is carried out to geothermal heat exchanger 20 and surrounding earth 12.

By looking back feature disclosed herein, 26S Proteasome Structure and Function, installation and/or operatively heat-exchange system the 10th, 10', 10 " and other aspects of subsystem will be apparent to or are understood.

In addition, the various aspects of above described embodiment can combine, to provide further embodiment.Separately Outward, in this specification reference and/or all United States Patent (USP)s listed in request for data table, U.S. Patent Application Publication, U.S. Patent application, foreign patent, foreign patent application and non-patent publications are all incorporated herein by reference in their entirety.If any Necessity, can change each side of embodiment, to utilize the design of various patent, application and publication to provide further Embodiment.

Can be carried out these according to detailed description above to each embodiment to change or other modifications.Generally, in appended power During profit requires, should not be construed to be restricted to claim disclosed in description and claims by the term being used is concrete Embodiment, but rather interpreted that include that be possible to embodiment sets together with belonging to these claims the equivalent of requirement of having the right The gamut of meter.

Claims

1. a ground heat-exchange system, comprising:

Geothermal heat exchanger, including canister, described canister limits inner-fluid chamber；And

Distribution system, is attached to described geothermal heat exchanger, thus makes heat transmission medium pass through described ground source heat during operation The described inner-fluid chamber circulation of interchanger, described distribution system includes:

Supply lines, for being delivered to described geothermal heat exchanger by described heat transmission medium；

Return line, for regaining described heat transmission medium from described geothermal heat exchanger；And

Filling vias, for the leakage according to the canister from described geothermal heat exchanger for the described heat transmission medium, employs certainly The heat transmission medium supplied supplements described geothermal heat exchanger.

2. heat-exchange system as claimed in claim 1ly, wherein, described ground heat-exchange system can operate together with heat pump, It with offer heating function and refrigerating function, and is configured to absorb heat and at refrigerating mode from the earth during heating mode Period is by heat dissipation to described the earth.

3. heat-exchange system as claimed in claim 1ly, wherein, described heat transmission medium includes water or mainly includes water.

4. heat-exchange system as claimed in claim 1ly, wherein, described supply lines, described return line and source, described ground Heat exchanger limits ground resource loop jointly, and wherein, described filling vias includes check-valves, with in response to striding across described non-return Valve, the pressure reduction that exceedes threshold value, will supply water from the water source supplied and introduce described ground resource loop.

5. heat-exchange system as claimed in claim 4ly, wherein, described heat transmission medium is water, and according to from described In water leakage in geothermal heat exchanger or described ground resource loop, water is to the conversion of gas, the operation pressure energy of described ground resource loop It is enough reduced to below described threshold value.

6. heat-exchange system as claimed in claim 4ly, wherein, the upstream side of described check-valves with from the described water supplied The water of supplying in source is in fluid communication without barrier.

7. heat-exchange system as claimed in claim 1ly, wherein, described heat transmission medium is water, and described filling vias It is configured to reveal or according to the water of described geothermal heat exchanger to the conversion of gas according to the water from described geothermal heat exchanger, Utilization is supplied water and is automatically replenished described geothermal heat exchanger.

8. heat-exchange system as claimed in claim 1ly, wherein, described distribution system also includes vent valve, with from described point Match system discharges gas.

9. heat-exchange system as claimed in claim 1ly, wherein, the described canister of described heat exchanger is deep base structure Part.

10. heat-exchange system as claimed in claim 9ly, wherein, described deep matrix component is stake, and described stake includes that auger is tied At least one in structure and connected structure, wherein, described auger structure is positioned at the lower end of described stake, and described connected structure is positioned at The upper end of described stake, is used for being attached to swivelling pile driver system.

11. ground according to claim 1 heat-exchange systems, wherein, the described canister bag of described geothermal heat exchanger Include tubular shell and the end cap of steel, to limit the fluid container generally closing off.

12. ground as claimed in claim 1 heat-exchange systems, wherein, the described canister of described geothermal heat exchanger for from Including the bearing carrier selecting in group set forth below:

Anchoring piece, is used for superstructure；

Base support, is used for structure；And

Soil conservation element.

13. ground as claimed in claim 1 heat-exchange systems, wherein, described supply lines includes outlet, with by described heat transfer Media discharge is in the described inner-fluid chamber of the described canister of described geothermal heat exchanger, and described return line bag Include entrance, to regain described heat transmission medium from the described inner-fluid chamber of the described canister of described geothermal heat exchanger, And wherein, the described outlet of described supply lines and the described entrance of described return line are each along the exchange of described ground source heat The longitudinal length of device is positioned at different height.

14. ground as claimed in claim 13 heat-exchange systems, wherein, the described outlet of described supply lines and the described line of return The described entrance on road is each positioned at the top of the described inner-fluid chamber of the described canister of described geothermal heat exchanger.

15. ground as claimed in claim 13 heat-exchange systems, wherein, described heat transmission medium is water, and described supply line The described entrance of the described outlet on road and described return line is inclined from the lower end of the described canister of described geothermal heat exchanger Move, so that the latter half of the described inner-fluid chamber of described canister is only occupied by the column of water.

16. 1 kinds of ground heat-exchange systems, comprising:

Geothermal heat exchanger, is positioned in the earth, and described geothermal heat exchanger includes canister, in described canister limits Portion's fluid cavity；And

Distribution system, is attached to described geothermal heat exchanger, to pass water through the circulation of described geothermal heat exchanger, and described distribution system System includes:

Supply lines,

Return line,

Circulating pump, for make water via described supply lines and described return line by described geothermal heat exchanger described in Portion's fluid cavity circulation,

Vent valve, for release gas from described distribution system, and

Filling vias, is configured to reveal or the water based on described geothermal heat exchanger based on the water from described geothermal heat exchanger To the conversion of gas, water is utilized to be automatically replenished the described inner-fluid chamber of described geothermal heat exchanger.

17. ground as claimed in claim 16 heat-exchange systems, wherein, described ground heat-exchange system can be grasped together with heat pump Make, providing heating function and refrigerating function, and be configured to absorb heat from described the earth during heating mode, and cold But by heat dissipation to described the earth during pattern.

18. ground as claimed in claim 16 heat-exchange systems, wherein, the described canister of described geothermal heat exchanger includes Tubular structure, described tubular structure includes outer surface and inner surface, and described outer surface has a common boundary with described the earth, described inner surface with The aqueous phase contact being circulated by described geothermal heat exchanger during operation.

19. ground as claimed in claim 16 heat-exchange systems, wherein, the described canister of described geothermal heat exchanger is deep At least one in matrix component and bearing carrier.

20. 1 kinds of methods installing ground heat-exchange system, described method includes:

Being installed at least one geothermal heat exchanger in the earth, described geothermal heat exchanger includes canister, described metal Container has outer surface and inner surface, and described outer surface has a common boundary with described the earth, and described inner surface limits inner-fluid chamber；

Via fuid distribution system, at least one geothermal heat exchanger described being attached to heat pump, described fuid distribution system includes Supply lines, return line and circulating pump, to pass water through the described internal flow of described geothermal heat exchanger during operation Chamber circulate, thus during heating mode from described the earth absorb heat and/or during refrigerating mode by heat dissipation to institute State in the earth；And

Described fuid distribution system is attached to described water source, enables to supply water according to water loss utilization and be automatically replenished institute State heat exchanger.

At least one geothermal heat exchanger described wherein, is attached to described the earth by 21. methods according to claim 20 Including be installed to multiple geothermal heat exchangers in described the earth.

22. methods as claimed in claim 21, also include:

It with arranged in series, is arranged in parallel or the plurality of geothermal heat exchanger is attached to by arranged in series and the combination being arranged in parallel Described heat pump.

23. methods as claimed in claim 21, also include:

Obtain performance data from the plurality of geothermal heat exchanger；And

It is installed to one or more geothermal heat exchangers supplied in described the earth, and be based at least partially on described performance The expectation demand of data and described heat pump, the geothermal heat exchanger supplying the one or more is attached to described heat pump.

24. methods as claimed in claim 21, also include:

The geothermal heat exchanger supplying at least one is attached in described the earth, and in response to the expectation demand of described heat pump Change, at least one geothermal heat exchanger supplied described is attached to described heat pump.

The method of 25. 1 kinds of operatively heat-exchange systems, described method includes:

Pass water through ground resource loop circulation, with during heating mode from the earth absorb heat and/or during refrigerating mode will Heat dissipation is in described the earth, and described ground resource loop includes at least one geothermal heat exchanger, at least one ground source heat described Interchanger has metal fluid container, and described metal fluid container includes outer surface and inner surface, described outer surface with described greatly Ground has a common boundary, and described inner surface contacts with described aqueous phase during operation；And

Reveal according to the water from least one geothermal heat exchanger described or in described ground resource loop, water, will to the conversion of gas Supply water to introduce in described ground resource loop.

26. methods as claimed in claim 25, also include:

At least one geothermal heat exchanger described and the described the earth surrounding at least one geothermal heat exchanger described are gone Stress.

27. methods as claimed in claim 26, wherein, described ground resource loop is attached to heat pump, thus the heat with described heat pump Interchanger heat-shift, and

Wherein, at least one geothermal heat exchanger described and encirclement, the described the earth of at least one geothermal heat exchanger described enters Row destressing includes: pass water through described at least one geothermal heat exchanger circulation.

28. methods according to claim 27, wherein, utilize circulating pump to pass water through described at least one ground source heat exchange Device circulation includes: make water be circulated by least one geothermal heat exchanger described with volumetric flow rate, and described volumetric flow rate is less than to be worked as The average volume flow velocity of water circulation during operation of heat pump.

29. methods as claimed in claim 26, wherein, at least one geothermal heat exchanger described and described in encirclement at least The described the earth of individual geothermal heat exchanger carries out destressing and includes: from described ground resource loop discharge water, and will with discharged Water there is the water of supplying of different mean temperature introduce in described ground resource loop.

30. methods as claimed in claim 26, wherein, according to from least one geothermal heat exchanger described water reveal or Described water of supplying to the conversion of gas, is incorporated into described ground resource loop and includes: although from institute by the water in described ground resource loop State loss water at least one geothermal heat exchanger, but make described ground resource loop automatically maintain operational capacity.