CN202350367U

CN202350367U - Heating system for absorbing terrestrial heat by utilizing heat pipes

Info

Publication number: CN202350367U
Application number: CN 201120455741
Authority: CN
Inventors: 王凯一; 刘雄英; 王为旭; 祁玉中
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-17
Filing date: 2011-11-17
Publication date: 2012-07-25
Anticipated expiration: 2021-11-17

Abstract

The utility model relates to a heating system for absorbing terrestrial heat by utilizing heat pipes. The technical scheme is that: the heating system mainly comprises three structural systems, namely a heat pipe shaft heat absorption section, a heat pipe shaft heat transfer section with a thermal insulation well cementation wall, and a ground heat exchange station, wherein the heat pipe shaft heat absorption section consists of heat pipes which are directly contacted with a high temperature stratum; the heat pipe shaft heat transfer section with the thermal insulation well cementation wall consists of the thermal insulation well cementation wall, a heat pipe shaft and a heat source control gate valve; and the ground heat exchange station consists of one or more heat pipe heat exchangers in various forms and a heat export control metering system. The heating system for absorbing the terrestrial heat by utilizing the heat pipes directly has the advantages that a purely green, pollution-free, zero-emission and energy consumption-free high temperature energy source is provided for the society so as to meet the production and living requirements in the most of the fields in the whole society, and production requirements on the temperature of between 50 and 200 DEG C in various economic fields can be met.

Description

Utilize the heating system of heat pipe picked-up underground heat

Technical field:

The utility model relates to the new system of a kind of geothermal utilization, particularly a kind of heating system of utilizing heat pipe picked-up underground heat.

Background technology:

At present, China only limits to the ground caloric intake of a hundred or so meter of shallow-layer to the utilization of underground heat, to be used for warming oneself or to be used for the ground insulating of zonule.And the method that is adopted has two: one, extracts geothermal water (＜70 ℃) and carries out ground level heat exchange heat-obtaining, and shortcoming is that underground water causes the face of land to pollute and increase the consumption of other power; The 2nd, adopt the shallow-layer heat pipe to take the photograph heat (＜30 ℃) technology, the tie surface hot-pipe system is used for the ground insulating of greenhouse and highway, and its technological deficiency is that temperature is too low, and geothermal utilization is extremely limited.The defective of the two is that temperature and the thermic load absorbed are extremely low, has realized not the geothermal utilization of real meaning.

Summary of the invention:

The purpose of the utility model is exactly the above-mentioned defective that exists to prior art, and a kind of heating system of utilizing heat pipe picked-up underground heat is provided.Be to extract underground heat through heat pipe, the ground level heat station heat supply temperature of its picked-up underground heat can reach more than 200 ℃, and stable heating power can reach hundreds of to hundreds thousand of kilowatts.

Its technical scheme is: mainly by the heat pipe pit shaft take the photograph hot arc, the heat pipe wellbore heat section and ground level heat switching station three Large Structure Systems that have an insulation well cementation borehole wall constitute, it is by constituting with heat pipe that high-temperature stratum directly contacts that described heat pipe pit shaft is taken the photograph hot arc; The said heat pipe wellbore heat section that has the insulation well cementation borehole wall is made up of the insulation well cementation borehole wall, heat pipe pit shaft and thermal source control gate valve; Described ground level heat switching station is made up of the heat exchange of heat pipe and the defeated outward control metering system of heat of one or more various ways.

Above-mentioned heat pipe pit shaft is taken the photograph hot arc and is made up of many heat pipes; Wherein, Heat pipe is the heat pipe of a lower end for dead mouth or plug formation bottom, and the upper end has thread, through screw thread many endotherm section heat pipes is coupled together; Constitute the heat pipe pit shaft and take the photograph hot arc, from the enough heats of stratum picked-up high-temperature stratum of projected depth; Effect is to extract enough stable heats according to design heating load from high-temperature stratum.

Above-mentioned heat pipe pit shaft is made up of many heat pipes, links to each other successively through screw thread, and topmost well head is equipped with thermal source control gate valve, and the outer wall of heat pipe pit shaft adopts the insulation well cementation borehole wall with insulating characteristics to cement the well with the ground interlayer; Effect is the heat transfer loss with minimum, will send to the ground level heat switching station to greatest extent from the heat of high-temperature stratum picked-up.

The ground heat exchange station is made up of heat exchange of heat pipe and the defeated outward control metering system of heat in addition, and its effect is to export desired temperature and heat according to user's needs, and this is controlled and measures.

The beneficial effect of the utility model is: directly through utilizing the heating system of heat pipe picked-up underground heat; The high temperature heat source of a kind of pure green, pollution-free, zero-emission, no energy consumption is provided to society; With production and the living needs that satisfies the most of fields of the whole society, the temperature that can satisfy the demands is produced needs each economic field of 50 ~ 200 ℃.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is sketch mapes of the ground heat exchange station of the utility model;

Among the last figure: high-temperature stratum 1, heat pipe pit shaft are taken the photograph hot arc 2, the insulation well cementation borehole wall 3, heat pipe wellbore heat section 4, thermal source control valve 5, heat exchange of heat pipe 6, thermal source control metering system 7, heating user 8.

The specific embodiment:

In conjunction with accompanying drawing 1-2, the utility model is done further to describe:

A kind of heating system of utilizing heat pipe picked-up underground heat; Its technical scheme is: mainly by the heat pipe pit shaft take the photograph hot arc 2, the heat pipe wellbore heat section 4 and ground level heat switching station three Large Structure Systems that have an insulation well cementation borehole wall 3 constitute, it is by constituting with heat pipe that high-temperature stratum directly contacts that described heat pipe pit shaft is taken the photograph hot arc 2; The said heat pipe wellbore heat section 4 that has the insulation well cementation borehole wall is made up of the insulation well cementation borehole wall 3, heat pipe pit shaft and thermal source control gate valve 5; Described ground level heat switching station is made up of with the defeated outward control metering system 7 of heat the heat exchange of heat pipe 6 of one or more various ways.

Above-mentioned heat pipe pit shaft is taken the photograph hot arc 2 and is made up of many heat pipes; Wherein, Heat pipe is the heat pipe of a lower end for dead mouth or plug formation bottom, and the upper end has thread, through screw thread many endotherm section heat pipes is coupled together; Constitute the heat pipe pit shaft and take the photograph hot arc 2, from the enough heats of the stratum picked-up high-temperature stratum of projected depth 1; Effect is to extract enough stable heats according to design heating load from high-temperature stratum.

Above-mentioned heat pipe pit shaft is made up of many heat pipes, links to each other successively through screw thread, and topmost well head is equipped with thermal source control gate valve 5, and the outer wall of heat pipe pit shaft adopts the insulation well cementation borehole wall 3 with insulating characteristics to cement the well with the ground interlayer; Effect is the heat transfer loss with minimum, will send to the ground level heat switching station to greatest extent from the heat of high-temperature stratum picked-up.

The ground heat exchange station is made up of the defeated outward control metering system 7 of heat exchange of heat pipe 6 and heat in addition, and its effect is based on the user need export desired temperature and heat, and this is controlled and measures.

The utility model utilizes the heat-exchanging process of heat pipe picked-up underground heat may further comprise the steps:

At first; Make up the heat pipe pit shaft and take the photograph hot arc 2: according to the thermic load designing requirement of ground heat exchange station; Confirm the heat-obtaining stratigraphic horizon that adheres to specification through geological prospecting; The length and the degree of depth according to ground caloric intake thermic load design heat pipe pit shaft ground caloric intake section are implemented in the purpose strata drilling through drilling technology, and are lowered to heat pipe;

Secondly; Structure has the heat pipe wellbore heat section 4 of the insulation well cementation borehole wall: confirm that according to geological prospecting the heat-obtaining stratigraphic horizon that adheres to specification carries out drillng operation; Be lowered to the heat transfer segment heat pipe after being drilled into the target zone top, then, adopt the adiabatic well cementing material of design to cement the well; After well cementation is accomplished, thermal source control valve 5 is installed at heat transfer heat pipe pit shaft top;

Step 1 is carried out with 2 implementation process as follows: get into the design well depth through drillng operation always, at first be lowered to the heat pipe pit shaft after finishing and take the photograph hot arc 2, play the connection of plug back and be lowered to heat transfer segment pit shaft heat pipe; Carry out the location well cementation at target zone top then; Punch after well cementation is accomplished and take the photograph the hot arc top water bod, carry out clean-out service then, until reaching designing requirement; At last, thermal source control valve 5 is installed;

Make up the heat pipe process system: after above-mentioned steps is accomplished, in well, inject specific adopting heat pipes for heat transfer heating agent, carry out the heat pipe implementation of processes then, after arriving the heat pipe design technological requirement, the heat pipe supplying heat system of pit shaft promptly accuses to make up and accomplishes;

Once more, make up the ground level heat switching station: with after the heat pipe supplying heat system of pit shaft is connected according to the heat pipe technological requirement, the whole heating system of utilizing heat pipe to absorb underground heat just possesses the heat supply condition with the heat exchange of heat pipe 6 of ground level heat switching station; Then, the thermal source external transport pipeline is inserted the defeated control metering system 7 of heat and outer defeated outward, the whole heating system of heat pipe picked-up underground heat of utilizing is promptly accused whole completion.

Claims

1. heating system of utilizing heat pipe picked-up underground heat; It is characterized in that: mainly taken the photograph hot arc (2), had the heat pipe wellbore heat section (4) and ground level heat switching station three Large Structure Systems formation of the insulation well cementation borehole wall (3) by the heat pipe pit shaft, it is by constituting with heat pipe that high-temperature stratum directly contacts that described heat pipe pit shaft is taken the photograph hot arc (2); The said heat pipe wellbore heat section (4) that has the insulation well cementation borehole wall is made up of the insulation well cementation borehole wall (3), heat pipe pit shaft and thermal source control gate valve (5); Described ground level heat switching station by the heat exchange of heat pipe (6) of one or more various ways and heat outward defeated control metering system (7) form.

2. the heating system of utilizing heat pipe picked-up underground heat according to claim 1; It is characterized in that: described heat pipe pit shaft is taken the photograph hot arc (2) and is made up of many heat pipes, and wherein, heat pipe is the heat pipe of a lower end for dead mouth or plug formation bottom; The upper end has thread; Through screw thread many endotherm section heat pipes are coupled together, constitute the heat pipe pit shaft and take the photograph hot arc (2), from the enough heats of stratum picked-up high-temperature stratum (1) of projected depth.

3. the heating system of utilizing heat pipe picked-up underground heat according to claim 1; It is characterized in that: described heat pipe pit shaft is made up of many heat pipes; Link to each other successively through screw thread; Topmost well head is equipped with thermal source control gate valve (5), and the outer wall of heat pipe pit shaft adopts the insulation well cementation borehole wall (3) with insulating characteristics to cement the well with the ground interlayer.