CN1055234A - Geothermal heating and water supply installation - Google Patents
Geothermal heating and water supply installation Download PDFInfo
- Publication number
- CN1055234A CN1055234A CN 90101598 CN90101598A CN1055234A CN 1055234 A CN1055234 A CN 1055234A CN 90101598 CN90101598 CN 90101598 CN 90101598 A CN90101598 A CN 90101598A CN 1055234 A CN1055234 A CN 1055234A
- Authority
- CN
- China
- Prior art keywords
- water
- injector
- efferent duct
- heating
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000010438 heat treatment Methods 0.000 title claims abstract description 55
- 238000009434 installation Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000012266 salt solution Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims abstract description 10
- 239000013505 freshwater Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000012267 brine Substances 0.000 description 3
- 229910052729 chemical element Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- Y02B30/123—
-
- Y02E10/18—
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
Geothermal heating and water supply installation have the geothermal well of drawing salt solution, geothermal well is connected with the separation chamber, the vapor portion of separation chamber is connected with the high pressure section of jet pump and injector, and the cooling limit downlink connection of its liquid part and heat exchanger, the cooling limit is connected with jet pump again.Efferent duct by injector supplies water toward water supply and heating system, enters an input pipe of heat pump after water uses in said system, and an efferent duct of heat pump is connected with the high pressure section of injector.Another input pipe of heat pump is connected with the efferent duct of jet pump, and its another efferent duct is connected with the storage well of pumping salt solution.
Description
The present invention relates to heat energy apparatus, more specifically say, relate to geothermal heating and water supply installation.
The present invention can be used to the heating and the hot water supply of life dwelling house and factory in the heat energy industry.
Meanwhile, in the use of this device, can also extract contained chemical element and compound in the salt solution.
The geothermal device that present great majority are used for heat supply and water supply has the function of used salt solution being returned geothermal source, for this purpose, and carry hot salt brine to the user in order to guarantee, and use many centrifugal pumps, the characteristics of these pumps are that metal wastage is big and short in the hot salt brine following life-span of condition of work.Therefore adopted heat pump in a series of devices, they are reliable and the life-span is long than centrifugal pump, yet need very big energy consumption again.So, be that high productivity ratio and economy will be arranged to the basic demand of geothermal device.
Known a kind of heat supply and water supply installation (Russian Patent, A, 823762) that utilizes underground heat, it is connected with geothermal source with assisted heat pump with main heat pump.Efferent duct by main heat pump supplies water to hot water supply system, and is supplied water to the retaining tower by the efferent duct of assisted heat pump, again by the retaining tower to life drinking water system water supply.Each heat pump has condenser, evaporimeter and is with electrically-driven compressor.The boiler of heating system is connected with geothermal source by the condenser of main heat pump.This device also has the cold house, is contained between the evaporimeter and condenser of main heat pump.The evaporimeter of assisted heat pump is connected with the condenser of main heat pump with reversing valve by three-way cock.
In the winter time, this device can be used for heating by main heat pump, by the assisted heat pump hot-water supply.In summer, cut off heating system and main heat pump is transferred to the cold house.Condenser to main heat pump is supplied with the water of preheating in the assisted heat pump evaporimeter in advance, can guarantee to improve the freezing capacity of main heat pump, and makes device more economical in using summer.
This device can not improve economy in the winter time.
In addition, use in the heat pump of this device and need introduce additional power supply with electrically-driven compressor, this has just reduced economy.Should be pointed out that the water that uses in hot water supply system, its chemical composition is identical with geothermal source, generally all contains higher mineral salt.This device can not return geothermal source with the water after using in the heating system, under the situation of long-term use geothermal source, can reduce its reserves and make the soil salinization.
Also known another kind of geothermal heating and water supply installation (Russian Patent, A, 1134854), used salt solution can be returned geothermal source, it has the salt solution that geothermal well can be drawn steam and liquid mixture form, geothermal well is connected with the separation chamber, and the vapor portion of separation chamber is connected with the high pressure section of jet pump and injector, injector also links to each other with the conduit of used water in the conveying heating system, and the liquid of separation chamber part is connected with the cooling limit of heat exchanger, the cooling limit is connected with jet pump again, and the efferent duct of this pump is connected with the storage well of pumping the salt-water liquid body portion.This device also has freshwater source and is connected with the heating edge of heat exchanger, and this heating edge is connected with the low pressure stage of injector, is supplied water by past heat supply of the efferent duct of injector and hot-water supply system.
Salt solution by jet pump output in this device directly enters in the storage well of the liquid part of pumping salt solution, and used water enters the high pressure section of injector in heating system.Realize the circulation of water in the heating system and draw fresh water by injector from freshwater source.At this moment the temperature of water of returning high pressure section in heating system after using is quite high, and this has just determined the corresponding pressure of temperature therewith.Under the quite high pressure of injector high pressure section, the job insecurity of injector own has consumed a spot of steam and fresh water simultaneously, so just causes the reduction of injector delivery pressure, and the productivity ratio of whole device is reduced.
The jet pump of this device is used to pump the liquid part of salt solution to geothermal source.In order to overcome the resistance of geothermal well, require at jet pump efferent duct build-up pressure, the size of this pressure depends on the amount of the steam of supplying with it.
Improve the pressure of pumping salt solution by increasing steam flow, the steam that causes entering injector reduces, and causes job insecurity.In addition, pump into the brine temp of storage well input pipe not highly, this can cause the additional drag by the decision of the high viscosity of salt solution.
This shows, in this device, can not fully effectively utilize the heat energy of geothermal source, reduced the economy of device.
Basic task of the present invention provides the device of a kind of geothermal heating and water supply, this device by the water after using in the heating system is taken out heat and to the salt-water liquid body portion enter pump the storage well before heat supply improve economy and productivity ratio.
The measure that solves this task provides a kind of underground heat and water supply installation, geothermal well with the salt solution that is used to draw steam and liquid mixture form, geothermal well is connected with the separation chamber, the vapor portion of this separation chamber is connected with the high pressure section of jet pump and injector respectively, and the high pressure section of injector is connected with the conduit of used water in the conveying heating system, and the liquid of separation chamber part is connected with the cooling limit of heat exchanger, this cooling limit is connected with jet pump again, and the efferent duct of this jet pump is connected with the storage well of pumping the salt-water liquid body portion.This device also has freshwater source, it is connected with the heating edge of heat exchanger, and this heating edge is connected with the low pressure stage of injector, the efferent duct of injector supplies water toward heat supply and water system, according to the present invention, this device also has heat pump, used water is entered the input pipe of heat pump by the cooling limit in heating system, and its efferent duct is connected with conveying conduit of used water in heating system, simultaneously, the input pipe of heat pump is connected with the efferent duct of jet pump from heating edge, and this efferent duct is connected with the storage well of pumping the salt-water liquid body portion.
Be preferably in and be provided with evaporimeter and condenser in the heat pump, and their heating edge and cooling limit are interconnected by middle thermophore closed circuit, in this loop, also be provided with choke valve and compressor, they are installed in the front and back of evaporimeter by middle thermophore loop direction respectively, described compressor also is equipped with hydraulic transmission, is connected with injector delivery.
Geothermal heating provided by the invention and water supply installation, have also increased from drawn the flow of salt solution by geothermal well when increase enters the fresh-water flow of heat supply and hot-water supply system owing to utilized heat pump.Realize heating before the salt-water liquid body portion enters the storage well pumping, just can reduce the volume that liquid is pumped in its viscosity and increase.
In addition, infeed the lowered water of temperature by heat pump the time, can make injector reach more stable work to the injector high pressure section.Adopt in the heat pump and be with hydraulicdriven compressor, can make the work of device realize automation, so need not the consumption of extra power.
Therefore, the characteristics that apparatus of the present invention have are high economy and productivity ratio, and do not need to introduce the additional energy.
Come the present invention is made an explanation geothermal heating of the present invention and water supply installation shown in the figure below by specific embodiment and accompanying drawing.
This geothermal heating and water supply installation have the geothermal well 1 of the salt solution of drawing steam and liquid mixture form, and geothermal well 1 is connected with separation chamber 2.The vapor portion of separation chamber 2 respectively with the steam jet 3 of the high pressure section 5 of injector 6, and the steam jet 4 of jet pump 7 connects, and the liquid of separation chamber 2 part is connected with the cooling limit 8 of heat exchanger 9, is connected with the fluid injector 10 of jet pump 7 and cool off limit 8.
This device also has freshwater source 11, and it is connected with the heating edge of heat exchanger 9, and heating edge is connected with the input pipe 12 of the low pressure stage 13 of injector 6.
By past heating system 14 of the efferent duct of injector 6 and water system 15 heat supply water.
In addition, this device also has the heat pump 16 that comprises evaporimeter 17 and condenser 18, and their heating edge 19 and the middle thermophore closed circuit 21 of cooling limit 20 usefulness interconnect, and this loop also has choke valve 22 and compressor 23.Choke valve 22 and compressor 23 are installed in the front and back of pressing evaporimeter 17 on the arrow middle thermophore loop direction shown in the figure respectively.Compressor 23 is equipped with hydraulic transmission 24 in the present embodiment, and is connected with the efferent duct of injector 6.Enter the input pipe on the cooling limit 25 of evaporimeter 17 after water uses in heating system 14, the efferent duct of evaporimeter 17 then is connected with conduit 26, so that carry used water in heating system.The input pipe of the heating edge 27 of condenser 18 is connected with the efferent duct of jet pump 7, and its efferent duct is connected with the storage well 28 of pumping the salt-water liquid body portion, and part salt solution then can be used for extracting chemical element and compound.
The steam jet 3 of separation chamber 2 and injector 6 with conduit that the steam jet 4 of jet pump 7 is connected on and with conduit that the fluid injector 10 of jet pump 7 is connected on, the corresponding valve 29,30,31 that is equipped with is in order to regulate the flow of liquid and steam in the salt solution.On the connecting duct of freshwater source 11 and heat exchanger 9, valve 32 is housed, can be used for regulating the fresh-water flow of carrying to the input pipe 12 of injector 6.
The working method of geothermal heating of the present invention and water supply installation is as follows.
The salt solution of the vapour liq form of mixtures of being extracted out by geothermal well 1 enters separation chamber 2 under pressure, be separated into liquid and steam two parts here, temperature is 110～150 ℃ steam enters injector 6 respectively by steam jet 3 and 4 along the conduit that valve 29 and 30 are housed high pressure section 5 and a jet pump 7.The liquid of salt solution part enters heat exchanger 9 along the conduit that valve 31 is housed, and it is 5～20 ℃ fresh water that the cooling limit 8 by heat exchanger 9 conducts heat to the temperature by freshwater source 11.In heat exchanger 9, be heated to 35～45 ℃ fresh water and enter the input pipe 12 of the low pressure stage 13 of injector 6.The flow of fresh water depends on the pressure differential between freshwater source 11 and injector 6 low pressure stages 13 mixing chambers, and available valve 32 is regulated.The pressure of the mixing chamber of low pressure stage 13 depends on the pressure and temperature of high pressure section 5 medium.In injector 6, the vapor portion of salt solution condenses fully, with used water in heating system 14 and by the mixing of fresh water of freshwater source 11, diffuser internal pressure at injector 6 increases to 0.13～1.0 MPa, and can make temperature is that 65～95 ℃ water is transported to heating system 14 and water system 15.
The liquid of salt solution partly by behind the cooling limit 8 of heat exchanger 9, enter the mixing chamber of jet pump 7 again by fluid injector 10, and the vapor portion of salt solution also enters this mixing chamber by steam jet 4.In jet pump 7, the vapor portion condensation of salt solution, heat energy is converted into mechanical energy, and the pressure of result in the exit increases to 0.3～1.4 MPa, and the porch pump pressure of jet pump 7 is 0.1～0.5 MPa.
The heating edge that the salt-water liquid body portion that temperature is 40～60 ℃ enters heat pump 16 input pipes by the efferent duct of jet pump 7, and used water enters the cooling limit of heat pump 16 input pipes in the heating system 14.
The water on the cooling limit 25 by evaporimeter 17 is cooled to 10～20 ℃ by 30～45 ℃, and heat is conducted to the middle thermophore (low-boiling point liquid) by evaporimeter 17 heating edge 19.Middle thermophore in evaporimeter 17 changes steam into, is compressed in compressor 23 then, and compressor 23 is equipped with hydraulic transmission 24, and its working medium is the water of being supplied with by injector 6 efferent ducts.
The discharge of the hydraulic transmission 24 of compressor 23 little (be about total flow 10%) in fact can not reduce the flow of heating system 14 and water system 15 water.
Because the result of compression, the temperature and the enthalpy of middle thermophore increase, and middle thermophore enters condenser 18, the condensation by its cooling limit 20, and heat conducted salt-water liquid body portion to the heating edge 27 by condenser 18, this liquid part flows to subsequently pumps storage well 28, and also can flow to where necessary in the system that extracts chemical element, and its temperature is 80～95 ℃.
The pressure of middle thermophore improves by the choke valve 22 that is installed on the closed circuit 21 through condenser 18 backs.
The heat pump 16 that adopts in this device can reduce the temperature of used water in the heating system 14, and improves and send into storage well 28 mesohalobic temperature, thereby more effectively utilizes heat.The temperature that enters the water of injector high pressure section 5 along conduit 26 reduces, cause that the pressure of high pressure section 5 reduces, thereby has guaranteed the work that injector 6 is stable, and can improve from separation chamber's 2 steam flows with from the flow of the fresh water of freshwater source 11.The steam and the fresh water that enter injector 6 can be regulated by valve 29,32.The result is improved the hydraulic pressure and the flow of injector 6 outputs, so just can improve the productivity ratio of heat supply and water system 14,15.
The flow that improves fresh water just can make the liquid of the salt solution with regulation flow partly be cooled to lower temperature, perhaps more substantial salt-water liquid body portion is cooled to the temperature of regulation, and this point can be regulated by valve 31.
To the big quantity of fluid of jet pump 7 supply pump is more effectively worked, depend on the drift loss of position of steam and liquid because reduced.
Because pump the rising into the liquid temperature partly of salt solution before the storage well 28, the viscosity of salt solution reduces, thereby reduced the resistance of storage well 28.
When saline solution part salt content is high, might form incrustation on the cooling limit 8 of heat exchanger 9.In order to guarantee the continuity of heat supply and water supply, wish to connect at least two heat exchangers 9 side by side along cooling limit 8, so just can be used alternatingly, so that carry out necessary cleaning and repairing.
This shows that the heat pump that this device uses can be pumped a large amount of salt solution to the storage well, even geothermal source is strengthened, has prevented the salination of soil simultaneously.In addition, but this device automatically working and characteristics such as high economy and productivity ratio are arranged.
Claims (2)
1, geothermal heating and water supply installation, has the salt solution geothermal well (1) that is used to draw steam and liquid mixture form, geothermal well (1) is connected with separation chamber (2), the vapor portion of this separation chamber (2) is connected with the high pressure section (5) of jet pump (7) and injector (6) respectively, and the high pressure section (5) of injector (6) is connected with the conduit (26) of used water in the conveying heating system (14), and the liquid of separation chamber (2) part is connected with the cooling limit (8) of heat exchanger (9), this cooling limit (8) is connected with jet pump (7) again, the efferent duct of jet pump (7) is connected with the storage well (28) of pumping the salt-water liquid body portion, device also has freshwater source (11), it is connected with the heating edge of heat exchanger (9), and this heating edge is connected with injector (6) low pressure stage (13), the efferent duct of injector (6) supplies water toward heating system (14) and water system (15), it is characterized in that this device also has heat pump (16), used water is entered the input pipe of heat pump (16) by the cooling limit in heating system (14), and its efferent duct is connected with the conduit (26) of carrying the water after using in heating system (14), simultaneously, the input pipe of heat pump (16) is connected from the efferent duct of heating edge with jet pump (7), and this efferent duct is connected with the storage well (28) of pumping the salt-water liquid body portion.
2, according to the device of claim 1, it is characterized in that in described heat pump (16), being provided with evaporimeter (17) and condenser (18), their heating edge (19) and cooling limit (20) are interconnected by middle thermophore closed circuit (21), this loop also is provided with choke valve (22) and compressor (23) and is installed in front and back by the evaporimeter on the loop direction of middle thermophore (17) respectively, described compressor (23) is equipped with hydraulic transmission (24), is connected with the efferent duct of injector (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101598 CN1055234A (en) | 1990-03-23 | 1990-03-23 | Geothermal heating and water supply installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101598 CN1055234A (en) | 1990-03-23 | 1990-03-23 | Geothermal heating and water supply installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1055234A true CN1055234A (en) | 1991-10-09 |
Family
ID=4877143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90101598 Pending CN1055234A (en) | 1990-03-23 | 1990-03-23 | Geothermal heating and water supply installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055234A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226602A (en) * | 2011-06-03 | 2011-10-26 | 北京建筑工程学院 | A two-stage injection heat pump heat exchange unit |
| CN103836834A (en) * | 2014-03-18 | 2014-06-04 | 北京建筑大学 | Ejecting-compressing combined heat pump set |
| CN112377378A (en) * | 2020-12-17 | 2021-02-19 | 中国能源建设集团山西省电力勘测设计院有限公司 | Simple and direct heat taking system capable of efficiently and cleanly utilizing geothermal heat energy |
| CN112396948A (en) * | 2020-11-23 | 2021-02-23 | 北京建筑大学 | Teaching demonstration device for water ejector of heat supply system |
-
1990
- 1990-03-23 CN CN 90101598 patent/CN1055234A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226602A (en) * | 2011-06-03 | 2011-10-26 | 北京建筑工程学院 | A two-stage injection heat pump heat exchange unit |
| CN102226602B (en) * | 2011-06-03 | 2012-12-19 | 北京建筑工程学院 | Two-stage injection heat pump type heat exchange unit |
| CN103836834A (en) * | 2014-03-18 | 2014-06-04 | 北京建筑大学 | Ejecting-compressing combined heat pump set |
| CN112396948A (en) * | 2020-11-23 | 2021-02-23 | 北京建筑大学 | Teaching demonstration device for water ejector of heat supply system |
| CN112396948B (en) * | 2020-11-23 | 2022-08-12 | 北京建筑大学 | A teaching demonstration device for water jets in heating systems |
| CN112377378A (en) * | 2020-12-17 | 2021-02-19 | 中国能源建设集团山西省电力勘测设计院有限公司 | Simple and direct heat taking system capable of efficiently and cleanly utilizing geothermal heat energy |
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| C06 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |