CN115614801B - Hydrothermal co-production device - Google Patents
Hydrothermal co-production device Download PDFInfo
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- CN115614801B CN115614801B CN202211192568.9A CN202211192568A CN115614801B CN 115614801 B CN115614801 B CN 115614801B CN 202211192568 A CN202211192568 A CN 202211192568A CN 115614801 B CN115614801 B CN 115614801B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 395
- 238000010521 absorption reaction Methods 0.000 claims abstract description 154
- 239000006096 absorbing agent Substances 0.000 claims abstract description 79
- 238000000926 separation method Methods 0.000 claims abstract description 30
- 239000005457 ice water Substances 0.000 claims abstract description 29
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/22—Treatment of water, waste water, or sewage by freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/126—Absorption type heat pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a hydrothermal co-production device, which comprises an absorption unit generator, an absorption unit flash evaporator, an absorber, a condenser module and an ice water separation tank, wherein water enters the absorption unit flash evaporator, ice is discharged from an outlet pipeline, and the ice water separation tank is connected with a low-temperature heat source water inlet pipe and a low-temperature heat source water outlet pipe; the absorber and condenser module is connected with a heat supply network water supply pipe and a heat supply network water return pipe, and the absorption unit generator is connected with a driving heat source water pipe; the flash evaporator of the absorption unit cools the entered water, and the cooled heat is transferred to the absorber and the condenser module; hot water in the driving heat source water pipe enters the absorption unit generator to cool, and the cooled heat is transferred to the absorber and the condenser module. Cooling water through an absorption unit flash evaporator to enable part of the water to be frozen, wherein the quality of the water contained in the ice is far higher than that of the raw water, so that high-quality water is generated; the invention has high operation efficiency and better energy efficiency.
Description
Technical Field
The invention belongs to the field of energy power, and particularly relates to a hydrothermal co-production device.
Background
The water resource amount of the people per minute in China is only 2300 cubic meters, is only 1/4 of the water resource amount of the people per minute in the world, is arranged at the 121 th position of the world, is listed as one of 13 water-poor countries in the world, and is also one of the most-poor countries of the water resource per minute in the world. Of 640 cities in China, 300 water-deficient cities are more than, and 108 severely water-deficient cities are more than. The quality of reclaimed water or river water, industrial residual hot water and the like does not meet the requirement of direct utilization, and if the reclaimed water or river water is treated by adopting a water treatment mode such as a membrane method and the like, the investment is large. However, the water is higher than the ambient air temperature in winter, and is an ideal heat pump low-temperature heat source, so that a hydrothermal co-production mode can be adopted, and high-quality water can be obtained during heating.
The heat pump used in the prior art is a compression heat pump, and the refrigerant (or secondary refrigerant) and water exchange heat through a dividing wall type heat exchanger, so that the water is solidified into an ice heat release form, and the ice layer exists on the wall surface of the heat exchanger, so that the heat pump has a relatively low evaporation temperature and relatively poor energy efficiency of the unit. Meanwhile, the compression heat pump consumes a large amount of power, and the problem of power capacity increase is related, so that the use of the technical scheme is limited.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a hydrothermal co-production device, which uses high-temperature hot water of a heat supply network as a driving heat source to extract heat from low-temperature hot water such as reclaimed water or river water, industrial residual hot water and the like, and supply heat to heat users together, and in addition, the water frozen by the low-temperature hot water source is recycled to obtain high-quality water, and the high-temperature water from an absorber and a condenser module is added to realize the hydrothermal co-production, so that the energy efficiency is improved.
The invention provides a hydrothermal co-production device, which comprises an absorption unit generator, an absorption unit flash evaporator, an absorber and a condenser module, and further comprises an ice-water separation tank, wherein the ice-water separation tank is used for separating ice from water, the separated water enters the absorption unit flash evaporator, the separated ice is discharged from an outlet pipeline, and in addition, the ice-water separation tank is connected with a low-temperature heat source water inlet pipe and a low-temperature heat source water outlet pipe;
The absorption unit flash evaporator is used for cooling water entering the absorption unit flash evaporator, and heat generated by cooling water is transferred into the absorber and condenser module;
the absorption unit generator is connected with a driving heat source water pipe, hot water in the driving heat source water pipe is used as driving hot water to enter the absorption unit generator for cooling, and heat generated by cooling is transferred into the absorber and condenser module;
The absorber and condenser module heats low-temperature backwater in the heat supply network backwater pipe through heat generated by cooling water in the absorption unit flash evaporator and the absorption unit generator to obtain high-temperature water which flows out from the heat supply network water supply pipe.
Further, the ice-water separation tank is provided with a first inlet, a second inlet, a first outlet and a second outlet, wherein the first inlet of the ice-water separation tank is connected with a low-temperature heat source water inlet pipe, the first outlet of the ice-water separation tank is connected with a low-temperature heat source water outlet pipe, the second inlet of the ice-water separation tank is connected with the outlet of the flash evaporator of the absorption unit, and the second outlet of the ice-water separation tank is connected with the inlet of the flash evaporator of the absorption unit.
Further, the driving heat source water pipe comprises a driving heat source water inlet pipe and a driving heat source water return pipe, the driving heat source water inlet pipe is connected with the absorption unit generator, hot water in the driving heat source water inlet pipe directly enters the heat supply network water supply pipe through a connecting pipeline after being cooled by the absorption unit generator, and the heat supply network water return pipe is connected with the driving heat source water return pipe.
Further, the driving heat source water pipe comprises a driving heat source water inlet pipe and a driving heat source water return pipe, and the driving heat source water inlet pipe and the driving heat source water return pipe are connected with the absorption unit generator.
Further, the device also comprises a heat exchanger, wherein the hot water in the driving heat source water inlet pipe enters the absorption unit generator for cooling, then enters the heat release side of the heat exchanger again for cooling, and the water cooled again by the heat exchanger flows out through the driving heat source water return pipe;
the hot water in the return pipe of the heat supply network is divided into two paths, the first path enters the absorber and condenser module to heat, the second path enters the heat absorption side of the heat exchanger to heat, and the heated hot water is supplied to users through the water supply pipe of the heat supply network.
The heat pump is further arranged, the water outlet of the absorber and condenser module is divided into two paths, one path enters the heat absorption side of the heat pump to absorb heat, and the other path enters the absorber and condenser module together with backwater in a backwater pipe of the heat supply network after heat is released through the heat release side of the heat pump; the outlet water after absorbing heat through the heat absorbing side of the heat pump is supplied to the user through the hot net water supply pipe.
The invention also provides a hydrothermal co-production device, which comprises an absorption unit generator, an absorption unit flash evaporator, an absorber and a condenser module, wherein the inlet of the absorption unit flash evaporator is connected with a low-temperature heat source water inlet pipe, the outlet of the absorption unit flash evaporator is connected with a low-temperature heat source water outlet pipe, the absorber and the condenser module are connected with a heat supply network water supply pipe and a heat supply network water return pipe, and the absorption unit generator is connected with a driving heat source water pipe;
the absorption unit flash evaporator is used for cooling water entering through the low-temperature heat source water inlet pipe, and heat generated by cooling water is transferred into the absorber and the condenser module;
Hot water in the driving heat source water pipe is used as driving hot water to enter the absorption unit generator for cooling, and heat generated by cooling is transferred into the absorber and the condenser module;
The absorber and condenser module heats low-temperature backwater in the heat supply network backwater pipe through heat generated by cooling water in the absorption unit flash evaporator and the absorption unit generator to obtain high-temperature water which flows out from the heat supply network water supply pipe.
Further, the driving heat source water pipe comprises a driving heat source water inlet pipe and a driving heat source water return pipe, the driving heat source water inlet pipe is connected with the absorption unit generator, hot water in the driving heat source water inlet pipe directly enters the heat supply network water supply pipe through a connecting pipeline after being cooled by the absorption unit generator, and the heat supply network water return pipe is connected with the driving heat source water return pipe.
Further, the driving heat source water pipe comprises a driving heat source water inlet pipe and a driving heat source water return pipe, and the driving heat source water inlet pipe and the driving heat source water return pipe are connected with the absorption unit generator.
Further, the device also comprises a heat exchanger, wherein the hot water in the driving heat source water inlet pipe enters the absorption unit generator for cooling, then enters the heat release side of the heat exchanger again for cooling, and the water cooled again by the heat exchanger flows out through the driving heat source water return pipe;
the hot water in the return pipe of the heat supply network is divided into two paths, the first path enters the absorber and condenser module to heat, the second path enters the heat absorption side of the heat exchanger to heat, and the heated hot water is supplied to users through the water supply pipe of the heat supply network.
The heat pump is further arranged, the water outlet of the absorber and condenser module is divided into two paths, one path enters the heat absorption side of the heat pump to absorb heat, and the other path enters the absorber and condenser module together with backwater in a backwater pipe of the heat supply network after heat is released through the heat release side of the heat pump; the outlet water after absorbing heat through the heat absorbing side of the heat pump is supplied to the user through the hot net water supply pipe.
According to the technical scheme, the hydrothermal co-production device provided by the invention has the following beneficial effects:
The invention has two working modes of heat increasing operation and hydrothermal co-production operation, in the heat increasing operation mode, hot water from a driving heat source water inlet pipe is used as driving hot water to enter an absorption heat pump generator for cooling and then returns to a heat source, low-temperature water from a low-temperature heat source enters an absorption unit flash evaporator, part of the water is evaporated, the rest is cooled (even frozen) and then is discharged back to the natural environment, backwater from a heat user absorbs driving heat in an absorber and condenser module and heat from the cooling of the water in the absorption unit flash evaporator is heated, and the heated hot water is returned to the heat user, so that the heat output to the heat user water pipe is larger than the heat input to the driving heat source water inlet pipe, and heat increasing is realized;
In the hydrothermal co-production mode, hot water from a heat source or a heat supply network is taken as driving hot water to enter an absorption heat pump generator for cooling and then returns to the heat source or the heat supply network, low-temperature water from a low-temperature heat source enters an absorption unit flash evaporator, part of water is evaporated in the flash evaporation, the rest part of water is cooled until the water is solidified into ice, an ice water mixture enters an ice storage separation tank, most of ice is stored, part of separated water enters the absorption unit flash evaporator again for flash evaporation, and the other part of water is discharged into the environment. The backwater from the heat user absorbs driving heat and the heat of cooling and solidifying the water into ice from the flash evaporator of the absorption unit in the absorber and condenser module, and the heat is sent back to the heat user after being heated, so that the heat output to the heat user is larger than the input driving heat, the generated ice is stored in the ice-water separation tank and is heated and melted by a proper heat source, and the water becomes high-quality water with better quality than the water quality of the water entering the flash evaporator of the absorption unit, and the heat pump water supply device can be used for the purposes of heat supply network water supply, domestic water and the like, and realizes the concurrent production of water and heat;
the invention has the advantages of high operation efficiency and better energy efficiency.
Drawings
FIG. 1 is a schematic diagram showing the connection of a hydrothermal co-production apparatus according to the first and third embodiments of the present invention;
FIG. 2 is a schematic diagram illustrating the connection of a hydrothermal co-production apparatus according to the first and second embodiments of the present invention;
FIG. 3 is a schematic diagram illustrating a connection of a hydrothermal co-production apparatus according to a fourth embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the connection of a hydrothermal co-production apparatus according to a fifth embodiment of the present invention;
FIG. 5 is a schematic diagram showing the connection of a hydrothermal co-production apparatus according to the sixth and seventh embodiments of the present invention;
FIG. 6 is a schematic diagram showing the connection of a hydrothermal co-production apparatus according to the sixth and eighth embodiments of the present invention;
FIG. 7 is a schematic diagram showing the connection of a hydrothermal co-production apparatus according to a ninth embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating the connection of a hydrothermal co-production unit according to a tenth embodiment of the present invention;
FIG. 9 is a schematic diagram showing the connection of a hydrothermal co-production unit according to an embodiment of the present invention;
The reference numerals in the figures are: the system comprises an absorption unit generator 1, an absorption unit flash evaporator 2, an absorber and condenser module 3, an ice-water separation tank 4, a heat exchanger 5 and a heat pump 6;
A driving heat source water inlet pipe 10, a driving heat source water return pipe 11, a connecting pipeline 12, a heat supply network water return pipe 13, a heat supply network water supply pipe 14, a low-temperature heat source water inlet pipe 15 and a low-temperature heat source water outlet pipe 16.
Detailed Description
For a better understanding of the objects, structures and functions of the present invention, a hydrothermal co-production apparatus of the present invention will be described in further detail.
Embodiment one:
The hydrothermal co-production device comprises an absorption unit generator 1, an absorption unit flash evaporator 2, an absorber and condenser module 3 and an ice-water separation tank 4, as shown in figures 1-2; specifically, the ice-water separation tank 4 is provided with a first inlet, a second inlet, a first outlet and a second outlet, wherein the first inlet of the ice-water separation tank 4 is connected with a low-temperature heat source water inlet pipe 15, the first outlet of the ice-water separation tank 4 is connected with a low-temperature heat source water outlet pipe 16, the second inlet of the ice-water separation tank 4 is connected with the outlet of the absorption unit flash evaporator 2, the second outlet of the ice-water separation tank 4 is connected with the inlet of the absorption unit flash evaporator 2, low-temperature water in the low-temperature heat source water inlet pipe 15 firstly enters the ice-water separation tank 4 through the first inlet, low-temperature water in the ice-water separation tank 4 enters the absorption unit flash evaporator 2 through the second outlet, a part of the low-temperature water is evaporated in the absorption unit flash evaporator 2 to absorb heat, and the other part of the water enters the ice separation tank 4 through the second inlet after the heat is absorbed, the water enters the absorption unit flash evaporator 2 again after the ice and the water is separated through the second outlet, the ice enters an ice storage tank 4 or a heat exchanger, the ice and the low-temperature water can be cooled by the heat source and the solid water in the absorption unit flash evaporator 3 after the solid water is cooled by the heat exchanger and the heat of the existing heat exchanger; the absorber and condenser module 3 is connected with a heat supply network water supply pipe 14 and a heat supply network water return pipe 13, low-temperature backwater which needs to absorb heat and raise temperature in the heat supply network is led into the absorber and condenser module 3 through the heat supply network water return pipe 13, and the low-temperature backwater is supplied into a user water pipe through the heat supply network water supply pipe 14 for use by a user after absorbing heat and raising temperature in the absorber and condenser module 3; the absorption unit generator 1 is connected with a driving heat source water pipe, driving hot water is conveniently led into the absorption unit generator 1 through the driving heat source water pipe, the heat source or the driving hot water in a heat supply network enters the absorption unit generator 1 and then is cooled, the heat flows out of the absorption unit generator 1 and returns to the heat source or the heat supply network again, and heat generated by water cooling in the absorption unit generator 1 is also transferred to the absorber and the condenser module 3, and low-temperature backwater in the heat supply network backwater pipe 13 in the absorber and the condenser module 3 is absorbed.
Embodiment two:
On the basis of the first embodiment, the driving heat source water pipe in this embodiment specifically includes a driving heat source water inlet pipe 10 and a driving heat source water return pipe 11, as shown in fig. 2, the driving heat source water inlet pipe 10 is connected with the absorption type unit generator 1, the hot water in the heat source or heat supply network flows into the absorption type unit generator 1 as driving hot water from the driving heat source water inlet pipe 10, the driving hot water flowing into the absorption type unit generator 1 enters the heat supply network water supply pipe 14 through the connecting pipeline 12 after the temperature of the absorption type unit generator 1 is reduced, the low-temperature backwater in the heat supply network water return pipe 13 is divided into two paths, one path flows into the driving heat source backwater pipe 11, and the heat source backwater in the driving heat source backwater pipe 11 is returned into the heat source or heat supply network water inlet pipe 10 after being heated, so as to supplement the water quantity in the driving heat source water inlet pipe 10, therefore, the heat supply network backwater pipe 13 is connected with the driving heat source backwater pipe 11, and the other path enters the heat supply network water supply pipe 14 after the absorber and condenser module 3 absorbs heat, the low-temperature backwater enters the heat supply network water supply network 14 through the absorption type unit generator 1, and the high-temperature backwater water supply network 14 and the high-temperature water supply network user.
Embodiment III:
On the basis of the first embodiment, the driving heat source water pipe in this embodiment includes a driving heat source water inlet pipe 10 and a driving heat source water return pipe 11, as shown in fig. 1, and both the driving heat source water inlet pipe 10 and the driving heat source water return pipe 11 are connected to the absorption unit generator 1. In this embodiment, the driving hot water in the heat source or the heat supply network flows into the absorption unit generator 1 through the driving heat source water inlet pipe 10, and flows into the heat source or the heat supply network again through the driving heat source water return pipe 11 directly after the temperature in the absorption unit generator 1 is reduced. Circulation of water of the heat source or heat supply network between the heat source or heat supply network and the absorption unit generator 1 can be achieved by driving the heat source water inlet pipe 10 and the heat source water return pipe 11.
Embodiment four:
On the basis of the third embodiment, the embodiment further includes a heat exchanger 5, as shown in fig. 3, and the heat exchanger 5 is disposed between the absorption unit generator 1 and the driving heat source return pipe 11, specifically, after the driving hot water in the heat source or the heat supply network enters the absorption unit generator 1 through the driving heat source water inlet pipe 10, cooling occurs in the absorption unit generator 1, the cooled low-temperature water enters the heat release side of the heat exchanger 5 again, and after the heat release side of the heat exchanger 5 releases heat again, the cooled low-temperature water flows out through the driving heat source return pipe 11; in addition, in order to utilize the heat of the low-temperature water in the heat exchanger 5 for releasing heat and reducing temperature, in this embodiment, the hot water in the heat supply network water return pipe 13 is divided into two paths, the first path is the same as the three paths in the embodiment, and still enters the absorber and condenser module 3 for heating, the second path enters the heat absorption side of the heat exchanger 5 for absorbing the heat generated by the low-temperature water release, so that the rising of the water return temperature is realized, and the two paths of heated hot water enter the heat supply network water supply pipe 14 and are supplied to users through the heat supply network water supply pipe 14. In this embodiment, the heat exchanger 5 is added to improve the utilization condition of the driving hot water in the heat source or the heat supply network, so that the heat carried by the driving hot water is released through the absorption unit generator 1 and then released through the heat exchanger 5 again, thereby improving the energy efficiency.
Fifth embodiment:
on the basis of the third embodiment, as shown in fig. 4, the heat pump 6 is further included in the third embodiment, and is disposed between the absorber and condenser module 3 and the heat supply pipe 14 of the heat supply network, specifically, the water flowing out of the absorber and condenser module 3 is divided into two paths by adding the heat pump 6, one path of the water enters the heat absorption side of the heat pump 6 to absorb heat, the other path of the water enters the heat release side of the heat pump 6 to release heat, the low-temperature water after heat release and the low-temperature backwater in the heat supply pipe 13 of the heat supply network enter the absorber and condenser module 3 again, the water flowing out of the absorber and condenser module 3 again falls into two paths after the heat is absorbed in the absorber and condenser module 3, the water flowing out of the absorber and condenser module 3 is circulated again, the heat absorbed by the water flowing into the heat absorption side of the heat pump 6 comes from the other path of the heat released on the heat release side of the heat pump 6, and the water flowing out of the water after the heat absorption side of the heat pump 6 is supplied to the user through the heat supply pipe 14 of the heat supply network. The addition of the heat pump 6 in this embodiment can raise the temperature of the hot water supplied to the user through the hot net water supply pipe 14 again.
Example six:
As shown in fig. 5-6, a hydrothermal co-production device comprises an absorption unit generator 1, an absorption unit flash evaporator 2, an absorber and condenser module 3, wherein an inlet of the absorption unit flash evaporator 2 is connected with a low-temperature heat source water inlet pipe 15, low-temperature hot water in the low-temperature heat source water inlet pipe 15 is conveniently guided into the absorption unit flash evaporator 2, and part of low-temperature hot water in the absorption unit flash evaporator 2 is led into the absorption unit flash evaporator 2 for evaporation, and the other part of water needs to absorb heat, so that the other part of water is released to be cooled to low temperature or even in an icing state after absorbing heat, an outlet of the absorption unit flash evaporator 2 is connected with a low-temperature heat source water outlet pipe 16, and the low-temperature or even icing state water in the absorption unit flash evaporator 2 is conveniently discharged into the environment through the low-temperature heat source water outlet pipe 16; the absorber and condenser module 3 is connected with a heat supply network water supply pipe 14 and a heat supply network water return pipe 13, low-temperature backwater which needs to absorb heat and raise temperature in the heat supply network is led into the absorber and condenser module 3 through the heat supply network water return pipe 13, and the low-temperature backwater is supplied into a user water pipe through the heat supply network water supply pipe 14 for use by a user after absorbing heat and raising temperature in the absorber and condenser module 3; the absorption unit generator 1 is connected with a driving heat source water pipe, driving hot water is conveniently introduced into the absorption unit generator 1 through the driving heat source water pipe, and the heat source or the driving hot water in the heat supply network enters the absorption unit generator 1 and then is cooled, flows out of the absorption unit generator 1 and returns to the heat source or the heat supply network again. In this embodiment, the heat absorbed by the low-temperature backwater in the heat supply network backwater pipe 13 in the absorber and condenser module 3 comes from two aspects, namely, the heat generated by the low-temperature heat source cooling entering the absorption unit flash evaporator 2 through the low-temperature heat source water inlet pipe 15, and the heat generated by the hot water cooling driving the heat source water pipe entering the absorption unit generator 1.
In the above embodiment, in order to realize unidirectional flow of the water flow in the heat supply network water supply pipe 14, the heat supply network water return pipe 13, the low-temperature heat source water inlet pipe 15 and the low-temperature heat source water outlet pipe 16, the water flow in the water pipe is prevented from countercurrent influencing the normal operation of the hydrothermal co-production device, and valves can be arranged on the heat supply network water supply pipe 14, the heat supply network water return pipe 13, the low-temperature heat source water inlet pipe 15 and the low-temperature heat source water outlet pipe 16, so that the water flow flows according to the set direction.
Embodiment seven:
on the basis of the sixth embodiment, the driving heat source water pipe in this embodiment specifically includes a driving heat source water inlet pipe 10 and a driving heat source water return pipe 11, as shown in fig. 5, the driving heat source water inlet pipe 10 is connected with the absorption type unit generator 1, hot water in the heat source or heat supply network flows into the absorption type unit generator 1 as driving hot water from the driving heat source water inlet pipe 10, the driving hot water flowing into the absorption type unit generator 1 enters the heat supply network water supply pipe 14 through the connecting pipeline 12 after the temperature of the absorption type unit generator 1 is reduced, low-temperature backwater in the heat supply network water return pipe 13 is divided into two paths, one path flows into the driving heat source backwater pipe 11, and the heat source backwater in the driving heat source backwater pipe 11 returns to the heat source or heat supply network after being heated, and then enters the driving heat source water inlet pipe 10, so that the water quantity in the driving heat source water inlet pipe 10 can be supplemented, and the heat supply network backwater pipe 13 is connected with the driving heat source backwater pipe 11, and the other path enters the heat supply network water supply pipe 14 after the absorber and condenser module 3 absorbs heat, the driving hot water enters the heat supply network water supply network 14 through the absorption type unit generator 1, the low-temperature backwater entering the heat supply network 14, and the high-temperature backwater supply network 14, and the user.
Example eight:
On the basis of the sixth embodiment, the driving heat source water pipe in this embodiment includes a driving heat source water inlet pipe 10 and a driving heat source water return pipe 11, as shown in fig. 6, both the driving heat source water inlet pipe 10 and the driving heat source water return pipe 11 are connected to the absorption unit generator 1. In this embodiment, the driving hot water in the heat source or the heat supply network flows into the absorption unit generator 1 through the driving heat source water inlet pipe 10, and flows into the heat source or the heat supply network again through the driving heat source water return pipe 11 directly after the temperature in the absorption unit generator 1 is reduced. Circulation of water of the heat source or heat supply network between the heat source or heat supply network and the absorption unit generator 1 can be achieved by driving the heat source water inlet pipe 10 and the heat source water return pipe 11.
Example nine:
On the basis of the eighth embodiment, the embodiment further includes a heat exchanger 5, as shown in fig. 7, and the heat exchanger 5 is disposed between the absorption unit generator 1 and the driving heat source return pipe 11, specifically, after the driving hot water in the heat source or the heat supply network enters the absorption unit generator 1 through the driving heat source water inlet pipe 10, cooling occurs in the absorption unit generator 1, the cooled low-temperature water enters the heat release side of the heat exchanger 5 again, and after the heat release side of the heat exchanger 5 releases heat again, the cooled low-temperature water flows out through the driving heat source return pipe 11; in addition, in order to utilize the heat of the low-temperature water in the heat exchanger 5 for releasing heat and reducing temperature, in this embodiment, the hot water in the heat supply network water return pipe 13 is divided into two paths, the first path is the same as the three paths in the embodiment, and still enters the absorber and condenser module 3 for heating, the second path enters the heat absorption side of the heat exchanger 5 for absorbing the heat generated by the low-temperature water release, so that the rising of the water return temperature is realized, and the two paths of heated hot water enter the heat supply network water supply pipe 14 and are supplied to users through the heat supply network water supply pipe 14. In this embodiment, the heat exchanger 5 is added to improve the utilization condition of the driving hot water in the heat source or the heat supply network, so that the heat carried by the driving hot water is released through the absorption unit generator 1 and then released through the heat exchanger 5 again, thereby improving the energy efficiency.
Example ten:
On the basis of the eighth embodiment, the present embodiment further includes a heat pump 6, as shown in fig. 8, where the heat pump 6 is disposed between the absorber and condenser module 3 and the heat supply pipe 14, specifically, the water flowing out of the absorber and condenser module 3 is divided into two paths by adding the heat pump 6, one path of the water enters the heat absorption side of the heat pump 6 to absorb heat, the other path of the water enters the heat release side of the heat pump 6 to release heat, the released low-temperature water and the low-temperature backwater in the heat supply pipe 13 of the heat supply network enter the absorber and condenser module 3 again, the water flowing out of the absorber and condenser module 3 again falls into two paths after absorbing heat in the absorber and condenser module 3, and the water flowing out of the absorber and condenser module 3 is circulated again, and the heat absorbed by the water flowing into the heat absorption side of the heat pump 6 comes from the other path of the heat released on the heat release side of the heat pump 6, and the water flowing out of the water after absorbing heat by the heat absorption side of the heat pump 6 is supplied to the user through the heat supply pipe 14 of the heat supply pipe. The addition of the heat pump 6 in this embodiment can raise the temperature of the hot water supplied to the user through the hot net water supply pipe 14 again.
In order to facilitate understanding of the technical solutions of the sixth embodiment, the seventh embodiment, the eighth embodiment, the ninth embodiment and the tenth embodiment, the following describes the embodiment nine in detail by means of a specific example, and the technical solutions of the sixth embodiment, the seventh embodiment, the eighth embodiment and the tenth embodiment are similar to the technical solution of the embodiment nine.
As shown in fig. 9, hot water in the heat supply network enters the absorption unit generator 1 at a water temperature of 100 ℃, the temperature of the discharged water after heat release and temperature reduction in the absorption unit generator 1 is 70 ℃, the discharged water at 70 ℃ enters the heat exchanger 5 again for temperature reduction and heat release, the water flowing out of the heat exchanger 5 enters the heat supply network again through the driving heat source return pipe 11 at a water temperature of 45 ℃, the low-temperature water in the low-temperature heat source water inlet pipe 15 enters the absorption unit flash evaporator 2 at a water temperature of 10 ℃, the water flows out of the low-temperature heat source water outlet pipe 16 after the temperature reduction in the absorption unit flash evaporator 2 to 2 ℃, the heat generated by the temperature reduction of 10 ℃ in the absorption unit flash evaporator 2 and the heat generated by the temperature reduction in the absorption unit generator 1 are both fed into the absorber and condenser module 3, one path of the water returned by a hot user in the heat supply network return pipe 13 enters the absorber and the condenser module 3, the other path of the water enters the heat supply network 14 after the heat is absorbed in the absorber and condenser module 3, the other path of the water enters the heat supply network 5 to the heat supply network 14, and the water discharged from the heat exchanger 5 enters the water supply network 14 to the same network 14, and the two paths of the water supply network 60 are formed by the two paths of the user and the water supply network 60.
In the above embodiment, the absorber and condenser module 3 includes the absorber and condenser, the absorber absorbs heat mainly to make the low-temperature backwater of the absorber and condenser module 3 become hot water of the absorber and condenser module 3, the condenser absorbs heat mainly by the heat supply user backwater of the heat release of the hot water condensation of the absorber and condenser module 3, concretely, the heat generated by the heat reduction of the hot water of the absorption unit generator 1, and the heat generated by the heat reduction of the low temperature water in the absorption unit flash evaporator 2 are absorbed by the low-temperature backwater of the absorber and condenser module 3 to become the hot water of the absorber and condenser module 3, the hot user backwater through the heat supply network backwater absorbing absorber and condenser module 3 releases heat to obtain hot water, the hot user is supplied with the hot water through the heat supply network water supply pipe 14 to use, and the hot water in the absorber and condenser module 3 releases heat to become the low-temperature backwater of the absorber and condenser module 3 after the heat release of the absorber and condenser module 3, the heat from the absorption unit generator 1 and the absorption unit flash evaporator 2 is absorbed again, thereby realizing the heat release-heat release again-heat release cycle again.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The hydrothermal co-production device comprises an absorption unit generator, an absorption unit flash evaporator, an absorber and a condenser module, and is characterized by further comprising an ice-water separation tank, wherein the ice-water separation tank is used for separating ice from water, the separated water enters the absorption unit flash evaporator, the separated ice is discharged from an outlet pipeline, and in addition, the ice-water separation tank is connected with a low-temperature heat source water inlet pipe and a low-temperature heat source water outlet pipe;
The absorption unit flash evaporator is used for cooling water entering the absorption unit flash evaporator, and heat generated by cooling water is transferred into the absorber and condenser module;
the absorption unit generator is connected with a driving heat source water pipe, hot water in the driving heat source water pipe is used as driving hot water to enter the absorption unit generator for cooling, and heat generated by cooling is transferred into the absorber and condenser module;
The absorber and condenser module heats low-temperature backwater in a heat supply network backwater pipe through heat generated by cooling water in the absorption unit flash evaporator and the absorption unit generator to obtain high-temperature water flowing out of the heat supply network water supply pipe;
the ice-water separation tank is provided with a first inlet, a second inlet, a first outlet and a second outlet, wherein the first inlet of the ice-water separation tank is connected with a low-temperature heat source water inlet pipe, the first outlet of the ice-water separation tank is connected with a low-temperature heat source water outlet pipe, the second inlet of the ice-water separation tank is connected with the outlet of the absorption unit flash evaporator, and the second outlet of the ice-water separation tank is connected with the inlet of the absorption unit flash evaporator.
2. The hydrothermal co-production device according to claim 1, wherein the driving heat source water pipe comprises a driving heat source water inlet pipe and a driving heat source water return pipe, the driving heat source water inlet pipe is connected with the absorption unit generator, hot water in the driving heat source water inlet pipe directly enters a heat supply pipe of a heat supply network through a connecting pipeline after being cooled by the absorption unit generator, and the heat supply pipe of the heat supply network is connected with the driving heat source water return pipe.
3. The hydrothermal cogeneration apparatus of claim 1, wherein the driven heat source water pipe comprises a driven heat source water inlet pipe and a driven heat source water return pipe, both of which are connected to the absorption unit generator.
4. The device for simultaneously producing water and heat according to claim 3, further comprising a heat exchanger, wherein after the hot water in the driving heat source water inlet pipe enters the absorption unit generator for cooling, the hot water enters the heat release side of the heat exchanger again for cooling, and the water cooled again by the heat exchanger flows out through the driving heat source water return pipe;
the water in the return water pipe of the heat supply network is divided into two paths, the first path enters the absorber and condenser module to heat, the second path enters the heat absorption side of the heat exchanger to heat, and the heated hot water in the two paths is supplied to users through the water supply pipe of the heat supply network.
5. The apparatus according to claim 3, further comprising a heat pump, wherein the water discharged from the absorber and condenser module is divided into two paths, one path of water enters the heat absorption side of the heat pump to absorb heat, and the water discharged after absorbing heat through the heat absorption side of the heat pump is supplied to a user through a hot net water supply pipe; the other path of the heat is released through the heat release side of the heat pump and then enters the absorber and the condenser module together with the backwater in the backwater pipe of the heat supply network.
6. The hydrothermal co-production device comprises an absorption unit generator, an absorption unit flash evaporator, an absorber and a condenser module, and is characterized in that an inlet of the absorption unit flash evaporator is connected with a low-temperature heat source water inlet pipe, an outlet of the absorption unit flash evaporator is connected with a low-temperature heat source water outlet pipe, and the absorption unit generator is connected with a driving heat source water pipe;
the absorption unit flash evaporator is used for cooling water entering through the low-temperature heat source water inlet pipe, and heat generated by cooling water is transferred into the absorber and the condenser module;
Hot water in the driving heat source water pipe is used as driving hot water to enter the absorption unit generator for cooling, and heat generated by cooling is transferred into the absorber and the condenser module;
The absorber and condenser module heats low-temperature backwater in the heat supply network backwater pipe through heat generated by cooling water in the absorption unit flash evaporator and the absorption unit generator to obtain high-temperature water which flows out from the heat supply network water supply pipe.
7. The hydrothermal co-production device according to claim 6, wherein the driving heat source water pipe comprises a driving heat source water inlet pipe and a driving heat source water return pipe, the driving heat source water inlet pipe is connected with the absorption unit generator, hot water in the driving heat source water inlet pipe enters a heat supply network water supply pipe through a connecting pipeline after being cooled by the absorption unit generator, and the heat supply network water return pipe is connected with the driving heat source water return pipe.
8. The hydrothermal cogeneration apparatus of claim 6, wherein the driven heat source water pipe comprises a driven heat source water inlet pipe and a driven heat source water return pipe, both of which are connected to the absorption unit generator.
9. The hydrothermal co-production device according to claim 8, further comprising a heat exchanger, wherein after the hot water in the driving heat source water inlet pipe enters the absorption unit generator for cooling, the hot water enters the heat release side of the heat exchanger again for cooling, and the water cooled again by the heat exchanger flows out through the driving heat source water return pipe;
the hot water in the return pipe of the heat supply network is divided into two paths, the first path enters the absorber and condenser module to heat, the second path enters the heat absorption side of the heat exchanger to heat, and the heated hot water is supplied to users through the water supply pipe of the heat supply network.
10. The apparatus of claim 8, further comprising a heat pump, wherein the water outlet of the absorber and condenser module is divided into two paths, one path enters the heat absorption side of the heat pump to absorb heat, and the water outlet after absorbing heat through the heat absorption side of the heat pump is supplied to a user through a hot net water supply pipe; the other path of the heat is released through the heat release side of the heat pump and then enters the absorber and the condenser module together with the backwater in the backwater pipe of the heat supply network.
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| EP0129631A1 (en) * | 1983-06-22 | 1985-01-02 | STAL-LAVAL Turbin AB | Installation for producing hot water or vapour |
| WO2009105930A1 (en) * | 2008-02-28 | 2009-09-03 | 清华大学 | A kind of concentrated heat-supply system |
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| CN109855151A (en) * | 2019-03-06 | 2019-06-07 | 中核坤华能源发展有限公司 | A kind of geothermal heating system using absorption heat pump combination vacuum flashing |
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| JPH0754211B2 (en) * | 1988-10-14 | 1995-06-07 | 株式会社前川製作所 | Co-generation system using absorption heat pump cycle |
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| EP0129631A1 (en) * | 1983-06-22 | 1985-01-02 | STAL-LAVAL Turbin AB | Installation for producing hot water or vapour |
| WO2009105930A1 (en) * | 2008-02-28 | 2009-09-03 | 清华大学 | A kind of concentrated heat-supply system |
| JP2011099640A (en) * | 2009-11-09 | 2011-05-19 | Hitachi Appliances Inc | Hybrid heat pump |
| CN102269442A (en) * | 2011-07-13 | 2011-12-07 | 清华大学 | Heating system utilizing heat pump technology to improve heating capacity of central heating pipe network |
| CN105318590A (en) * | 2014-07-19 | 2016-02-10 | 刘秋克 | Flash gravity difference low heat source heat pump |
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