KR20190043657A - Enhanced geothermy cold and hot geothermy punching and cascade heatpump system for making both cold water and steam using the enhanced geothermy cold and hot geothermy punching - Google Patents

Abstract

The present invention provides a core cold and hot geothermal hole structure and a cascade heat pump system for producing cold water and steam at the same time, including the core cold and hot geothermal hole structure. The core cold and hot geothermal hole structure includes a core cold and hot geothermal hole, a core insertion pipe, and a bored unit insertion pipe. The core cold and hot geothermal hole structure enables operation of heating by using geothermal heat of a core unit and can change the operation to the operation of cooling.

Description

TECHNICAL FIELD [0001] The present invention relates to a cascade heat pump system for simultaneous production of cold water and steam, including a geothermal structure for a deep geothermal heat and a geothermal structure for a deep geothermal heat and cold, enhanced geothermy cold and hot geothermy punching}

The present invention relates to a cascade heat pump system for simultaneous production of cold water and steam, including a geothermal geothermal / cold geothermal structure and a geothermal / geothermal geothermal / geothermal structure.

Generally, the ground temperature is about 23 ° C at a point of about 400m in the ground, and the ground temperature is about 40 ° C at about 1km in the ground. Geothermal heat at the depth of 1 km or below is called deep geothermal heat.

Examples of conventional systems using deep geothermal heat are those of the patent literature presented below.

However, in the conventional system using the deep geothermal heat, since the geothermal heat exchanger refrigerant is expressed at a relatively high temperature, for example, 30 ° C or more at the deep portion, the geothermal exchange refrigerant containing the deep geothermal heat is extracted to the earth surface, There is a problem that it is not suitable for use in cooling.

Registered Patent No. 10-1237723, Date of Registration: 2013.02.19., Name of invention: Depression System for deep-rooted geothermal power generation and its drilling method Patent No. 10-1562791, Date of registration: Oct. 19, 201. Title of the invention: Pipe unit for deep-sea geothermal exchange and pipe assembly having the same

The present invention provides a cascade heat pump system for simultaneous production of cold water and steam including a deep geothermal structure for deep geothermal cooling and cooling and a deep geothermal structure for deep geothermal heat exchange capable of heating operation using deep geothermal heat but also switching to cooling operation For the purpose of things.

According to one aspect of the present invention, there is provided a geothermal structure for a deep geothermal heat and cold compaction, comprising: a deep geothermal hot / cold co- A deep insertion pipe inserted into the deep geothermal heat and cold compartment ground hole and inserted into the deep portion of the deep portion; And a ceiling insertion tube inserted into the deep geothermal cooling / heating cooperating hole, wherein the ceiling insertion tube is inserted so as to be closer to the ground than the deep core insertion tube.

According to an aspect of the present invention, there is provided a cascade heat pump system for simultaneous production of cold water and steam, comprising: a low-stage heat exchanger in which the low-stage raw water and the low-stage refrigerant undergo heat exchange so that raw- A low-stage compressor in which the low-stage refrigerant obtained from the heat in the low-stage heat exchanger is compressed; An intermediate heat exchanger in which the low-stage side refrigerant and the high-stage side refrigerant undergo heat exchange so that the low-stage side refrigerant compressed in the low-stage compressor is discharged; A low-stage expansion valve in which the low-stage side refrigerant radiating from the intermediate heat exchanger is expanded; A high-stage compressor in which the high-stage refrigerant obtained from the heat in the intermediate heat exchanger is compressed; A high-stage heat exchanger in which the high-stage side refrigerant and the high-stage side raw water are heat-exchanged so that the high-stage side refrigerant compressed in the high-stage compressor is discharged and the high-stage side raw water is steamed; A high-stage expansion valve in which the high-stage side refrigerant discharged from the high-stage heat exchanger is expanded; Deep geothermal hot and cold forming geothermal; A deep insertion pipe inserted into the deep geothermal heat and cold compartment ground hole and inserted into the deep portion of the deep portion; A ceiling inserting tube inserted into the geothermal hot and cold cooperating trench and relatively inserted into the core inserting tube so as to be closer to the ground; And a geothermal heat exchanger for exchanging geothermal heat exchanged with the ground in the deep geothermal hot and cold cohesive tuyeres is connected to the intermediate heat exchanger through the intermediate heat exchanger, And an intermediate heat exchanger tube for passing through the heat exchange tube.

According to another aspect of the present invention, there is provided a geothermal structure for a deep geothermal heat and cold compartment, comprising: a deep geothermal hot / cold co- A core insertion pipe inserted in the deep geothermal heat and cold water cofferdam hole and inserted into the deep portion of the core; An intermediate flow hole formed in the deep insertion tube at a location relatively shallower than the depth of the deep portion; And an opening and closing member capable of opening and closing the intermediate flow hole.

According to the cascade heat pump system for simultaneous production of cold water and steam including the deep geothermal cooling / cooperating structure according to one aspect of the present invention and the geothermal / cooperative geothermal structure, the deep geothermal / A common geothermal ball, a deep insertion pipe, and a ceiling insertion pipe, it is possible to switch to a cooling operation while enabling heating operation using deep geothermal heat.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a cascade heat pump system for simultaneous production of cold water and steam including a geothermal structure for a deep geothermal heat and cold compartment according to an embodiment of the present invention; FIG.
2 is a view showing an intermediate heat exchanger portion constituting a cascade heat pump system for simultaneous production of cold water and steam according to an embodiment of the present invention;
FIG. 3 is a view showing a geothermal hole structure for a deep geothermal cooling / cooling joint according to an embodiment of the present invention. FIG.
4 is a view showing a circulation in one direction in a geothermal hole structure for a deep geothermal heat and cold compartment according to an embodiment of the present invention.
5 is a view showing a circulation in the other direction in a geothermal hole structure for a deep geothermal heat and cold compartment according to an embodiment of the present invention.
FIG. 6 is a view showing a geothermal hole structure for a deep geothermal cooling / heating joint according to another embodiment of the present invention. FIG.
7 is a view showing a state in which an intermediate flow hole is closed in a geothermal structure for a deep geothermal heat and cold compaction according to another embodiment of the present invention.
8 is a view showing a state in which an intermediate flow hole is opened in a geothermal structure for a deep geothermal heat and cold compaction according to another embodiment of the present invention.

Hereinafter, a cascade heat pump system for simultaneous production of cold water and steam including a geothermal structure for a deep geothermal heat and cold water according to embodiments of the present invention and a geothermal structure for the deep geothermal heat and cold water will be described with reference to the drawings.

FIG. 1 is a view illustrating a cascade heat pump system for simultaneous production of cold water and steam including a geothermal hole structure for a deep geothermal heat and cold according to an embodiment of the present invention. FIG. 2 is a cross- FIG. 3 is a view showing a geothermal hole structure for a deep geothermal heat and cold compaction according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of an intermediate heat exchanger constituting a cascade heat pump system for simultaneous production. FIG. 5 is a view showing a circulation in the other direction in the geothermal hole structure for a deep geothermal heat and cold according to an embodiment of the present invention.

Referring to FIGS. 1 to 5 together, the core geothermal heat and cold compartment geothermal treatment structure according to the present embodiment includes a deep geothermal heat & cold cohesion ground hole 190, a deep core insertion pipe 191, and a ceiling insertion pipe 193 do.

The cascade heat pump system 100 for simultaneous production of cold water and steam according to the present embodiment includes a lower stage heat exchanger 120, a lower stage compressor 130, an intermediate heat exchanger 140, a lower stage expansion valve 102, A high-stage compressor (150), a high-stage heat exchanger (160), a high-stage expansion valve (103), a deep geothermal cooling / coiling trench (190) (193), and an intermediate heat exchange tube (194).

The low-stage heat exchanger (120) exchanges heat between the low-stage side raw water and the low-stage side refrigerant so that raw water on the low-stage side supplied from the outside such as tap water is converted into cold water.

The cold water formed in the low-stage heat exchanger 120 may be stored in the cold water storage tank 110. The cold water stored in the cold water storage tank 110 can be supplied to the outside cold water consumer.

In the present embodiment, the low-stage raw water supplied from the outside such as tap water is stored in the cold water storage tank 110, and the low-stage raw water is stored between the cold water storage tank 110 and the low-stage heat exchanger 120. [ The raw water on the low-stage side flows into the cold water storage tank 110 and is stored again.

Reference numeral 101 denotes a cold water circulation pump for circulating the low-stage raw water between the cold water storage tank 110 and the low-stage heat exchanger 120.

The low-stage compressor (130) compresses the low-stage refrigerant obtained from the heat in the low-stage heat exchanger (120).

The intermediate heat exchanger 140 exchanges heat between the low-stage side refrigerant and the high-stage side refrigerant so that the low-stage refrigerant compressed by the low-stage compressor 130 is radiated.

The low-stage expansion valve (102) expands the low-stage side refrigerant discharged from the intermediate heat exchanger (140). The lower-stage refrigerant expanded through the lower-stage expansion valve (102) passes through the lower-stage heat exchanger (120) again to obtain heat.

The high-stage compressor (150) compresses the high-stage raw water obtained from the heat in the intermediate heat exchanger (140).

The high-stage heat exchanger (160) performs heat exchange between the high-stage side refrigerant and the high-stage side raw water so that the high-stage side refrigerant compressed by the high-stage compressor (150) dissipates heat and the high- will be.

In the high-stage expansion valve (103), the high-stage side refrigerant discharged from the high-stage heat exchanger (160) is expanded. The high-stage refrigerant expanded through the high-stage expansion valve (103) passes through the intermediate heat exchanger (140) again to obtain heat.

A high-stage side supercooling heat exchanger 104 includes a high-stage side refrigerant directed from the high-stage heat exchanger 160 to the high-stage expansion valve 103 and a high-stage side refrigerant directed from the high- Stage refrigerant from the high-stage heat exchanger (160) to the high-stage expansion valve (103) by supercooling the refrigerant.

The steam generated in the high-stage heat exchanger 160 may be stored in the steam storage tank 170 in the form of steam. The steam stored in the steam storage tank 170 may be supplied in the form of steam to an external steam demanding entity.

The geothermal heat exchanger geothermal cavity (190) is formed in the ground in the form of a geothermal structure. The geothermal heat exchanger (190) is perforated to a depth of 1 km or more from the surface of the ground, So that heat exchange can be performed over a wide range. The geothermal heat exchanging coolant 190, for example, water is stored at a certain water level in the deep geothermal heat and cold co-

The deep portion insertion pipe 191 is inserted into the deep geothermal heat and cold water cofferdam hole 190 and inserted deeply into the deep portion of the deep portion.

The ceiling insertion pipe 193 is inserted into the deep geothermal heat and cooling ground hole 190 and inserted shallowly so as to be relatively close to the surface of the core insertion pipe 191.

The intermediate heat exchange tube 194 is connected to the core insert tube 191 at one side thereof and connected to the other side of the insert tube 193 via the intermediate heat exchanger 140, Exchanges the geothermal heat exchanged with the ground in the deep geothermal heat-and-cooling cooperage trench 190 through the intermediate heat exchanger 140.

The geothermal heat exchanger refrigerant flowing out from the deep geothermal heat and cold water cofferdam hole 190 through the deep portion insertion pipe 191 or the heft pipe insertion pipe 193 passes through the intermediate heat exchanger 140, And can be reintroduced into the geothermal heat & cold co-

That is, the geothermal heat exchanger refrigerant discharged from the deep geothermal heat and cold water cofferdam trench 190 through the deep portion insertion pipe 191 passes through the intermediate heat exchanger 140 and then flows through the cephalic insertion pipe 193 The geothermal exchange coolant flowing out from the deep geothermal heat and cold water cofferdam hole 190 through the superficial insert pipe 193 flows through the intermediate heat exchanger 140 and then re-introduced into the deep geothermal cooling / co-finishing ground hole 190 through the core insert pipe 191.

Reference numeral 192 denotes a feed pump installed on the core insert pipe 191 and immersed in the geothermal heat exchanger 190 in the deep geothermal heat and cold co- The geothermal heat exchanger refrigerant is circulated along the core insert pipe 191 or the ceiling insert insert 193 according to the operation of the supply pump 192 to the deep geothermal heat and cold co- As shown in FIG.

That is, when the feed pump 192 is operated in one direction, the geothermal heat exchanger refrigerant flows out of the deep geothermal cooling / co-finishing ground hole 190 through the deep portion insertion pipe 191, The geothermal exchange refrigerant can be discharged from the deep geothermal cooling / co-finishing ground hole 190 through the ceiling insertion pipe 193. [

The geothermal heat exchanger refrigerant around the inflow hole of the deep portion insertion pipe 191 in the deep geothermal heat and cold coater tearing hole 190 is connected to the deep geothermal heat and cold coater ground hole 190 through the deep portion insertion pipe 191, The geothermal heat exchanger refrigerant around the inflow hole of the ceiling insertion pipe 193 in the deep geothermal cooling / coiling ground hole 190 is discharged through the ceiling insertion pipe 193 to the deep geothermal cooling / And is discharged outside the tearing hole (190).

The inflow hole of the deep portion insertion pipe 191 is connected to a plurality of fine holes formed in the lower portion of the deep portion insertion pipe 191. The inflow hole of the deep portion insertion pipe 191 is connected to the deep portion insertion pipe 191 through the inflow hole of the deep portion insertion pipe 191, ) Or out of the core insertion tube (191).

The inflow hole of the ceiling insertion pipe 193 is connected to a plurality of micro holes formed in the lower portion of the ceiling insertion pipe 193 so that the geothermal exchange refrigerant is introduced into the ceiling insertion pipe 193 through the inflow hole of the ceiling insertion pipe 193. [ ) Or out of the ceiling insertion tube (193).

Reference numeral 105 denotes a high-temperature circulation pump for circulating the high-stage raw water between the high-stage heat exchanger 160 and the steam storage tank 170. Reference numeral 106 denotes a steam storage tank 170, It is a high-end raw water supply pump that supplies raw water.

Reference numeral 180 denotes a cold water tank side circulation pipe circulatingly connecting the low-stage heat exchanger 120 and the cold water storage tank 110. Reference numeral 181 denotes a circulation pipe connected to the low-stage heat exchanger 120, the low-stage compressor 130, The intermediate stage heat exchanger 140 and the low stage expansion valve 102. Reference numeral 182 denotes the high stage compressor 150, the high stage heat exchanger 160, the high stage expansion valve 103, And the intermediate heat exchanger 140. Reference numeral 183 denotes a circulation tube on the side of the steam tank for circulating the high-temperature heat exchanger 160 and the steam storage tank 170.

2, the low-stage side circulation pipe 181 and the high-stage side circulation pipe 182 are connected to both ends of the intermediate heat exchanger 140, and the center of the intermediate heat exchanger 140 The intermediate heat exchanger 194 crosses the intermediate heat exchanger 194. In the intermediate heat exchanger 140, the low-stage side circulation pipe 181, the intermediate heat exchange pipe 194, and the high-stage side circulation pipe 182 can be heat-exchanged with each other in triplicate.

The driving motor of the high-stage compressor 150 can be inverter-controlled according to the steam pressure in the steam storage tank 170. To this end, a pressure sensor (not shown) for sensing the internal pressure of the steam storage tank 170 will be installed in the steam storage tank 170. Since such a pressure sensor can be used for general purpose, do.

In detail, the driving motor of the high-stage compressor 150 is controlled within a range of 60 to 100% of the maximum rotation speed of the driving motor according to the steam pressure in the steam storage tank 170, ) Can be controlled within the range of 40 to 60 Hz.

As described above, the drive motor of the high-stage compressor 150 is controlled in an inverter in real time, thereby reducing the load of the high-stage compressor 150, thereby improving durability and enabling efficient operation.

Hereinafter, the operation of the geothermal structure for a deep geothermal cooling / heating joint according to the present embodiment will be described with reference to the drawings.

4, during the heating operation, the feed pump 192 is operated in one direction so that the inflow of the deep portion insertion tube 191 in the deep geothermal cooling / A relatively high temperature geothermal exchange coolant around the hot water circulates through the deep portion insertion pipe 191 to the outside of the deep geothermal heat &

As described above, the relatively high temperature geothermal-exchange refrigerant discharged through the deep portion insertion pipe 191 is used for heating operation, and then is returned to the deep geothermal cooling / co-finishing ground hole 190 again through the ceiling insertion pipe 193 .

On the other hand, during the cooling operation, the feed pump 192 is operated in the other direction, and as shown in FIG. 5, the inflow of the ceiling insertion tube 193 in the deep geothermal cooling / A relatively low temperature geothermal heat exchanger refrigerant circulating in the vicinity of the hearth is discharged to the outside of the deep geothermal heat and cold co-

As described above, the geothermal-exchange refrigerant discharged from the relatively low-temperature geothermal heat exchanger 193 is used for cooling operation, and is then returned to the deep geothermal cooling / co-finishing ground hole 190 through the deep portion insertion pipe 191 .

As described above, since the deep geothermal heat and cold-service geothermal structure includes the deep geothermal cooling / co-finishing ground hole 190, the deep part insertion pipe 191, and the heavenly insertion pipe 193, It is possible to switch to the cooling operation while it is possible.

Hereinafter, the operation of the cascade heat pump system 100 for simultaneous production of cold water and steam according to the present embodiment will be described with reference to the drawings.

First, the low-stage raw water supplied from the outside is stored in the cold water storage tank 110 and then flows through the low-stage heat exchanger 120 according to the operation of the cold water circulation pump 101.

In the course of passing through the low-stage heat exchanger 120, the low-stage raw water loses heat and is cold-watered, and the low-stage side refrigerant passing through the low-stage heat exchanger 120 also obtains the heat.

The lower-stage raw water discharged as described above is converted into cold water and stored in the cold water storage tank 110.

Meanwhile, the low-stage refrigerant obtained from the heat in the low-stage heat exchanger 120 is compressed while passing through the low-stage compressor 130, and then passes through the intermediate heat exchanger 140.

During the passage of the intermediate heat exchanger (140), the low-stage refrigerant loses heat and the high-stage refrigerant passing through the intermediate heat exchanger (140) also obtains the heat.

The low-stage side refrigerant having the heat dissipated as described above is expanded while passing through the low-stage expansion valve 102, and then passes through the low-stage heat exchanger 120 to obtain heat and expand.

The high-stage refrigerant obtained from the heat in the intermediate heat exchanger 140 is compressed while passing through the high-stage compressor 150, and then passes through the high-stage heat exchanger 160.

During the passage of the high-stage heat exchanger (160), the high-stage refrigerant loses heat and is stored in the steam storage tank (170) and then flows through the high-stage heat exchanger (160) The raw water is converted into steam by obtaining the heat.

The high-temperature side refrigerant having the heat dissipated as described above is expanded while passing through the high-stage expansion valve (103), and then passes through the intermediate heat exchanger (140) to obtain heat and expand.

The steam generated in the high-stage heat exchanger 160 is stored in the steam storage tank 170 as described above.

On the other hand, when the cold water and steam are supplied to the customer in a balanced manner, the amount of cold water used is extremely small and the amount of steam used is relatively large, or conversely, when the load is relatively concentrated In the case of a load biased toward one side at a balance point in which the amount of the low-stage raw water converted into the cold water and the amount of the high-stage raw water converted into steam are balanced, the geothermal heat exchanger refrigerant is supplied to the deep- And then circulated to the intermediate heat exchanger 140 along the intermediate heat exchanger tube 194 to provide heat corresponding to the load biases.

4, when the amount of cold water used is extremely small and the amount of steam used is relatively large, the relative high temperature around the inflow hole of the deep portion insertion pipe 191 in the deep geothermal heat & Exchanged refrigerant is discharged to the outside of the deep geothermal cooling / co-finishing ground hole 190 through the deep portion inserting pipe 191 and then the heat is transferred from the intermediate heat exchanger 140 toward the high-stage side raw water, You can compensate for the lack of heat for steam formation.

On the other hand, when the amount of cold water used is relatively large and the amount of steam used is extremely small, as shown in FIG. 5, the relative low temperature around the inflow hole of the ceiling insertion pipe 193 in the deep geothermal heat & The geothermal heat exchanger 140 discharges the geothermal heat exchanger 140 from the deep geothermal heat and cold water cofferdam hole 190 through the ceiling insertion pipe 193 to convert the low- And absorbs the heat and radiates heat to the ground through the deep portion insertion tube 191 in the deep geothermal heat and cold coater trench 190, thereby allowing the remaining heat to be buried in the ground.

As described above, the cascade heat pump system 100 for simultaneous production of cold water and steam includes a low-stage heat exchanger 120, a low-stage compressor 130, an intermediate heat exchanger 140, a low-stage expansion valve 102, A high-stage compressor (150), a high-stage heat exchanger (160), a high-stage expansion valve (103), a deep geothermal heat and cold radiator ground hole (190), a deep portion insertion pipe (191) By including the intermediate heat exchange pipe 194, the cold water and the steam are supplied to the customer in a balanced manner, the cold water consumption is extremely small, the steam consumption is relatively large, or conversely, the cold water consumption is relatively large and the steam consumption is extremely small The geothermal exchange refrigerant is heat-exchanged with the ground at the deep geothermal heat and cold coater ground hole 190 and then circulated to the intermediate heat exchanger 140 along the intermediate heat exchanger 194, To provide heat corresponding to And it can give, and thus is made to also facilitate the operation when the amount of cold water and the steam usage differently biased it is possible to smoothly respond to the bias of the load.

Hereinafter, a cascade heat pump system for co-generation of cold water and steam, including a geothermal structure for a deep geothermal heat and cold water according to another embodiment of the present invention and a geothermal structure for the deep geothermal heat and cold water, will be described with reference to the drawings. In carrying out these explanations, the description overlapping with the content already described in the embodiment of the present invention described above is replaced with it, and it will be omitted here.

FIG. 6 is a view showing a geothermal structure according to another embodiment of the present invention, and FIG. 7 is a view showing a state in which an intermediate flow hole is closed in a geothermal structure for a deep geothermal heat and cold according to another embodiment of the present invention. And FIG. 8 is a view showing a state in which the intermediate flow hole is opened in a geothermal hole structure for a deep geothermal cooling / heating joint according to another embodiment of the present invention.

6 to 8, the deep geothermal cooling / cooperating structure according to the present embodiment includes a deep geothermal / cold / cooperating geothermal hole 290 formed to a depth of the deep ground, a deep geothermal / An intermediate flow hole 299 formed at a position relatively shallower than the depth of the deep portion of the deep portion insertion tube 291 and inserted into the deep portion of the deep portion, And an opening / closing member 300 capable of opening and closing the hole 299.

Reference numeral 292 denotes a deep flow hole formed in the lower portion of the core insert tube 291, reference numeral 293 denotes a connecting wire extending from the opening and closing member 300 to the vicinity of the earth surface, reference numeral 294 denotes a connecting wire 293 Reference numeral 295 denotes a pulley drive means such as a motor capable of rotating the pulley 294 in the forward or reverse direction and reference numeral 296 denotes a pulley drive means such as a pulley which drives the pulley 294 in the lower portion of the intermediate flow hole 299, The stopper protrudes to the outside of the insertion tube 291, and the lower portion of the opening and closing member 300 is hooked to restrict the downward turning range.

When the pulley drive means 295 is rotated forward, the pulley 294 is also rotated forward so that the connection wire 293 is wound on the pulley 294, so that the opening and closing member 300 is lifted, The hole 299 is opened and when the pulley drive means 295 is reversely rotated the pulley 294 is also reversely rotated so that the connection wire 293 is a pulley 294 at the pulley 294, The opening and closing member 300 is lowered and the intermediate flow hole 299 is closed.

The opening and closing member 300 includes an opening and closing body 310 that can be lifted up and down along the deep insertion tube 291 while covering the outside of the deep insertion tube 291, And a guiding body 311 for guiding the lifting and lowering of the opening and closing body 310 when the opening and closing body 310 is lifted and lowered along the core insertion tube 291.

The guide body 311 is in close contact with the outer surface of the deep insertion tube 291 relative to the opening and closing body 310 so that the opening and closing body 310 can be stably lifted .

The rollers 312 and 313 are disposed on at least one of the inner surface of the guide body 311 and the lower end of the opening and closing body 310 so that the rollers 312 and 313 contact the deep portion insertion tube 291, Since the opening and closing body 310 can be raised and lowered, the opening and closing body 310 can be smoother than the elevating and lowering of the opening and closing body 310.

The connection wire 293 is normally loosened so that the opening and closing member 300 is placed on the stopper 296 as shown in Figure 7, The intermediate flow hole 299 is closed so that the intermediate flow hole 299 is sealed with respect to the outside. Thus, in this case, the geothermal heat exchanger refrigerant flows through the deep flow hole 292 to the deep deep part of the ground.

8, when the pulley drive means 295 is rotated forward and the connection wire 293 is wound on the pulley 294, the opening and closing member 300 is lifted, The body 310 opens the intermediate flow hole 299 and the intermediate flow hole 299 is opened to the outside. Therefore, in this case, the geothermal heat exchanger refrigerant flows through the intermediate flow hole 299 to the relatively shallow portion in the ground.

The intermediate flow hole 299 of the deep portion insertion tube 291 formed with the deep flow hole 292 and the intermediate flow hole 299 may be formed in the shape of the above- The geothermal exchange medium can be selectively flowed into the intermediate flow hole 299 and the deep flow hole 292 of the core insert tube 291 by the opening and closing member 300, , The deep insertion tube 291 can be easily converted to be capable of heat exchange with the deep part of the ground as well as heat exchange with the deep part of the ground.

After the geothermal exchange medium is exchanged with the deep part or the bottom of the ground through the deep part insertion pipe 291 and then through the cascade heat pump system for simultaneous production of cold water and steam, Can be returned.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the following claims And can be changed. However, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

According to one aspect of the present invention, the cascade heat pump system for simultaneous production of cold water and steam, including the geothermal structure for deep geothermal cooling and co-finishing of geothermal heat and the geothermal structure for deep geothermal heat and cold water, It can be said that it is highly likely to be used in the industry.

100: Cascade heat pump system for simultaneous cold water and steam production
102: Lower stage expansion valve
103: High-stage expansion valve
110: cold water storage tank
120: Low-stage heat exchanger
130: Lower stage compressor
140: intermediate heat exchanger
150: High-stage compressor
160: High-stage heat exchanger
170: Steam storage tank
190: Geothermal geothermal heating
191: deep insertion tube
193: Heel insertion tube
194: intermediate heat exchanger tube
299: Intermediate flow hole
300: opening / closing member

Claims (13)

Deep geothermal hot and cold forming geothermal;
A deep insertion pipe inserted into the deep geothermal heat and cold compartment ground hole and inserted into the deep portion of the deep portion; And
And a ceiling inserting tube inserted into the geothermal hot and cold cooperating trench so as to be relatively closer to the ground than the core inserting tube. The method according to claim 1,
During heating, the geothermal heat exchanger around the inflow hole of the core insert pipe in the deep geothermal heat and cold coater ground hole is discharged through the core insert pipe to the outside of the deep geothermal heat and cold co-
Wherein a geothermal exchange refrigerant around the inflow hole of the ceiling insertion pipe in the deep geothermal cooling / coiling ground hole is discharged to the outside of the deep geothermal cooling / heating cooperating hole through the ceiling insertion pipe. Geothermal structure. A low-stage heat exchanger in which the low-stage side raw water and the low-stage side refrigerant undergo heat exchange so that the low-stage raw water is converted into cold water;
A low-stage compressor in which the low-stage refrigerant obtained from the heat in the low-stage heat exchanger is compressed;
An intermediate heat exchanger in which the low-stage side refrigerant and the high-stage side refrigerant undergo heat exchange so that the low-stage side refrigerant compressed in the low-stage compressor is discharged;
A low-stage expansion valve in which the low-stage side refrigerant radiating from the intermediate heat exchanger is expanded;
A high-stage compressor in which the high-stage refrigerant obtained from the heat in the intermediate heat exchanger is compressed;
A high-stage heat exchanger in which the high-stage side refrigerant and the high-stage side raw water are heat-exchanged so that the high-stage side refrigerant compressed in the high-stage compressor is discharged and the high-stage side raw water is steamed;
A high-stage expansion valve in which the high-stage side refrigerant discharged from the high-stage heat exchanger is expanded;
Deep geothermal hot and cold forming geothermal;
A deep insertion pipe inserted into the deep geothermal heat and cold compartment ground hole and inserted into the deep portion of the deep portion;
A ceiling inserting tube inserted into the geothermal hot and cold cooperating trench and relatively inserted into the core inserting tube so as to be closer to the ground; And
The geothermal heat exchange refrigerant exchanged with the ground at the deep geothermal heat and cold water service hole is connected to the intermediate heat exchanger through the intermediate heat exchanger, And an intermediate heat exchanger tube for exchanging heat between the cold water and the steam. The method of claim 3,
During heating, the geothermal heat exchanger around the inflow hole of the core insert pipe in the deep geothermal heat and cold coater ground hole is discharged through the core insert pipe to the outside of the deep geothermal heat and cold co-
Wherein the geothermal exchange refrigerant around the inflow hole of the ceiling insertion pipe in the deep geothermal cooling / heating cooperating hole is discharged to the outside of the deep geothermal cooling / co-finishing ground hole through the ceiling insertion pipe. Cascade heat pump system for production. Deep geothermal hot and cold forming geothermal;
A core insertion pipe inserted in the deep geothermal heat and cold water cofferdam hole and inserted into the deep portion of the core;
An intermediate flow hole formed in the deep insertion tube at a location relatively shallower than the depth of the deep portion; And
And an opening and closing member capable of opening and closing the intermediate flow hole. 6. The method of claim 5,
Wherein a stopper protrudes from the lower part of the intermediate flow hole to the outside so that the rotation range of the lower part of the opening and closing member is limited. The method according to claim 6,
The opening /
An openable / closable body that can be lifted and lowered along the deep insertion tube while surrounding the outside of the deep insertion tube,
And a guiding body extending from an upper portion of the opening and closing body and guiding the lifting and lowering of the opening and closing body when the opening and closing body is lifted and lowered along the core insertion tube. 8. The method of claim 7,
Wherein the guide body is in close contact with the outer surface of the core insertion tube relative to the opening / closing body. 9. The method of claim 8,
When the opening / closing member is placed on the stopper, the opening / closing body covers the intermediate flow hole, so that the intermediate flow hole is hermetically sealed to the outside, Flows into the relatively deep part of the ground,
When the opening / closing member is in an elevated state, the opening / closing body opens the intermediate flow hole, and the intermediate flow hole is opened to the outside, whereby the geothermal exchange refrigerant flows through the intermediate flow hole Wherein the at least one of the at least two of the at least two of the at least two of the at least two of the at least two of the at least two of the at least one of the at least two of the at least two islands. A lower stage heat exchanger in which the low-stage side raw water and the low-stage side refrigerant undergo heat exchange so that the low-stage raw water is converted into cold water, a low-stage compressor in which the low-stage side refrigerant obtained by heat in the low-stage heat exchanger is compressed, An intermediate heat exchanger in which the low-stage side refrigerant and the high-stage side refrigerant undergo heat exchange so that the low-stage side refrigerant is radiated, a low-stage expansion valve in which the low-stage side refrigerant radiating from the intermediate heat exchanger is expanded, A high-stage heat exchanger in which the high-stage side refrigerant and the high-stage side raw water are heat-exchanged to dissipate the high-stage side refrigerant compressed in the high-stage compressor and steam in the high-stage side raw water, Stage refrigerant discharged from the high-stage expansion valve is expanded,
Deep geothermal hot and cold forming geothermal;
A deep insertion pipe inserted into the deep geothermal heat and cold compartment ground hole and inserted into the deep portion of the deep portion; And
And a ceiling inserting tube inserted into the deep geothermal heat and cold coater trench and relatively inserted to the ground surface relative to the deep core inserting pipe. 11. The method of claim 10,
The cascade heat pump system for simultaneous cold water and steam production
The geothermal heat exchange refrigerant exchanged with the ground at the deep geothermal heat and cold water service hole is connected to the intermediate heat exchanger through the intermediate heat exchanger, And an intermediate heat exchanger tube for exchanging heat with the heat exchanger. Deep geothermal hot and cold forming geothermal;
A deep insertion pipe inserted into the deep geothermal heat and cold compartment ground hole and inserted into the deep portion of the deep portion;
A ceiling inserting tube inserted into the geothermal hot and cold cooperating trench and relatively inserted into the core inserting tube so as to be closer to the ground;
An intermediate flow hole formed in the deep insertion tube at a location relatively shallower than the depth of the deep portion;
An opening and closing member capable of opening and closing the intermediate flow hole; And
And an intermediate heat exchanger tube connected to one end of the core insert pipe and connected to the other end of the insert pipe. The cascade heat pump system for simultaneous production of cold water and steam. 13. The method of claim 12,
A stopper protrudes from the lower part of the intermediate flow hole to the outside so as to limit the range of rotation of the lower part of the opening and closing member to the lower side,
Wherein the opening / closing member includes an opening / closing body that can be lifted / lowered along the core insertion tube while surrounding the outside of the core insertion tube, and a cover body extending from an upper portion of the opening / closing body, And a guide body for guiding the lifting and lowering of the body,
When the opening / closing member is placed on the stopper, the opening / closing body covers the intermediate flow hole, so that the intermediate flow hole is hermetically sealed to the outside, Flows into the relatively deep part of the ground,
When the opening / closing member is in an elevated state, the opening / closing body opens the intermediate flow hole, and the intermediate flow hole is opened to the outside, whereby the geothermal exchange refrigerant flows through the intermediate flow hole Wherein the heat exchanger flows into a relatively shallow ceiling portion of the cascade heat pump system for simultaneous production of cold water and steam.

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