CN115218260B - Square cabin power supply and heat supply system - Google Patents
Square cabin power supply and heat supply system Download PDFInfo
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- CN115218260B CN115218260B CN202211092247.1A CN202211092247A CN115218260B CN 115218260 B CN115218260 B CN 115218260B CN 202211092247 A CN202211092247 A CN 202211092247A CN 115218260 B CN115218260 B CN 115218260B
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- 238000001816 cooling Methods 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 42
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F24D13/00—Electric heating systems
- F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
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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
- F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/04—Other direct-contact heat-exchange apparatus the heat-exchange media both being liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
- F28D3/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
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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
- F24D2101/00—Electric generators of small-scale CHP systems
- F24D2101/50—Thermophotovoltaic [TPV] modules
-
- 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
- F24D2103/00—Thermal aspects of small-scale CHP systems
- F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a shelter power supply and heat supply system, which relates to the field of centralized heat supply and comprises a solar cell panel, an inverter and a grid-connected box, wherein one end of a cooling pipe is communicated with a heat flow inlet end of a heat exchanger through a water outlet pipe; the cold flow buffer cavity is communicated with the connecting pipe through a connecting branch pipe, the mixing cavity is communicated with the constant temperature tank through a primary water discharge pipe, and the hot flow buffer cavity is communicated with the flow guide pipe; the liquid inlet end of the cooling cavity is communicated with the water tank through a connecting tail pipe, and the liquid outlet end of the cooling cavity is communicated with the secondary water discharge pipe through a connecting branch pipe. According to the invention, the cooling cavity in the heat exchanger carries out secondary cold-heat exchange on the heated cold flow so as to carry out primary cooling on the heat flow, the heat flow is carried out tertiary cold-heat exchange through the flow stabilizing cavity, the temperature of the fluid continuously flowing into the constant temperature tank is kept consistent to the maximum extent, and the subsequent cold-heat conversion in the constant temperature tank can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of centralized heating, and particularly provides a power and heat supply system for a shelter.
Background
Solar energy is gaining favor as an outstanding new energy source for all countries in the world. Solar energy has the advantages of cleanness, safety, environmental protection, inexhaustibility and the like, and solar energy mainly based on the photo-thermal technology is applied to various industries and is continuously developed. In the field of heat supply, solar energy is utilized to supply heat to buildings, so that very good energy-saving and environmental benefits can be obtained, and the solar energy is always paid attention to all countries in the world for a long time. Solar heat supply is a technology for collecting solar radiation by a solar heat collector and converting the solar radiation into heat energy for heat supply; the solar heating system usually collects solar radiation by a solar heat collector and converts the solar radiation into heat energy to be stored in hot water, and the hot water is conveyed to a heat dissipation tail end or a heat utilization device so as to meet the requirements of heating and domestic hot water of a building; the solar heating system utilizes solar energy as energy, thereby not only saving fossil energy, but also meeting the requirement of environmental protection.
At present, a shelter of a shelter place is provided for dealing with emergencies of social environments, such as emergency rescue, disaster relief, epidemic situation prevention and control, patrol warning and the like, and a heat supply and power supply system used in an internal section of the shelter provides a heat source by solar energy. The most common heat collector is a solar panel assembly, which is generally installed at the top of a shelter, heat generated when the solar panel assembly heats up during working needs to be absorbed by a cold-heat exchanger to ensure the normal working of the solar panel, meanwhile, the heat absorbed by the cold-heat exchanger can be converted into low-temperature heat energy of 40 to 60 ℃, and finally, a heat source is provided for heating/heat supplying in the shelter, but the working time of the solar panel assembly is different from that of a traditional heat supplying system, namely, the optimal working environment is day time with sufficient illumination, the solar panel assembly cannot work or has low working efficiency at night, and at the moment, a constant temperature tank needs to be used for continuously storing heated water; when the heat exchanger works, due to the fact that solar energy resources are large in fluctuation and low in energy flow density, generated low-temperature heat energy is unstable, the heat temperature difference between the shell of the heat exchanger and the wall of the heat pipe is increased, the scaling probability of the heat exchanger cannot be increased, the temperature difference of fluid continuously entering the constant temperature tank is large, the temperature of the fluid in the constant temperature tank cannot be kept constant, and finally the guarantee rate of a household solar heat supply system is low and the heat stability is poor.
Disclosure of Invention
The invention aims to provide a power and heat supply system for a shelter, so as to solve the problems.
The invention is realized by the following technical scheme:
the shelter power supply and heat supply system comprises a solar cell panel, an inverter, a parallel net cage, a heat exchanger and a constant temperature tank, wherein the solar cell panel, the inverter and the parallel net cage are sequentially and electrically connected;
a partition plate for dividing the interior of the heat exchanger into a cooling cavity and a flow stabilizing cavity which are mutually independent is arranged in the heat exchanger, a plurality of U-shaped pipes are sequentially arranged in the cooling cavity from top to bottom and are communicated with each other through a vertically arranged guide pipe, the liquid inlet end of the U-shaped pipe positioned at the uppermost layer is communicated with a water outlet pipe, and the liquid outlet end of the U-shaped pipe positioned at the lowermost layer is connected with a guide pipe;
the first plugging plate and the second plugging plate are arranged in the steady flow cavity at intervals, the steady flow cavity is divided into a heat flow buffer cavity, a mixing cavity and a cold flow buffer cavity by the first plugging plate and the second plugging plate, the cold flow buffer cavity is communicated with a connecting pipe through a connecting branch pipe, the mixing cavity is communicated with the constant temperature tank through a primary water drain pipe, and the heat flow buffer cavity is communicated with the flow guide pipe; two rows of first drainage holes are formed in the first plugging plate from top to bottom in sequence along the vertical direction, two rows of second drainage holes are formed in the second plugging plate, the horizontal height of the drainage holes in the upper layer in the two rows of first drainage holes is H, the horizontal height of the drainage holes in the lower layer in the two rows of second drainage holes is H, and H is more than H;
the liquid inlet end of the cooling cavity is communicated with the water tank through a connecting tail pipe, and the liquid outlet end of the cooling cavity is communicated with the secondary water discharge pipe.
In the prior art, the solar heat supply system for a special area or place has relatively low use frequency, and the low-temperature hot water temperature in the heat supply system cannot be constant due to unstable heat generation of a solar cell panel during working, and meanwhile, the heat exchanger in the heat supply system is easy to increase the probability of scaling in the heat exchanger due to the fact that the temperature difference between the heat exchange tube wall and the shell wall of the heat exchanger becomes large, so that the stable supply of the low-temperature hot water cannot be met under the conditions of variable time and variable quantity; therefore, the applicant designs a power supply and heat supply system after long-time research and development, wherein a solar panel converts light energy into electric energy, the electric energy respectively enters an energy storage battery and a power grid through an inverter and a grid-connected box, meanwhile, heat energy generated by the solar panel during working is subjected to heat exchange with cold flow in a cooling pipe, then secondary cold-heat exchange is performed on the heated cold flow through a cooling cavity in a heat exchanger, so that heat flow flowing out of the cooling pipe is firstly cooled, and then, three times of cold-heat exchange is performed on the heat flow flowing out of the cooling cavity through a current stabilizing cavity, so that the temperature of the fluid flowing into a constant temperature tank finally is ensured to be the optimal use temperature, the temperature of the fluid continuously flowing into the constant temperature tank is kept consistent to the maximum extent, subsequent cold-heat conversion in the constant temperature tank can be effectively avoided, and the temperature of the fluid in the constant temperature tank is prevented from being lower than or higher than the preset optimal use temperature when the fluid is used;
during specific operation, cold flow of a cooling pipe forms unstable-temperature heat flow after being heated, the unstable-temperature heat flow enters a pipeline formed by communicating a plurality of U-shaped pipes and guide pipes through a water outlet pipe, cooling media injected into a cooling cavity and the heat flow carry out energy exchange, the main purpose of the cold-heat exchange at the moment is to reduce the temperature of the heat flow to a low-temperature range, the heat flow subjected to primary cooling treatment enters a heat flow buffer cavity through a guide pipe, meanwhile, cold flow newly injected from a water tank enters a cold flow buffer cavity through a connecting branch pipe, the heat flow and the cold flow enter a mixing cavity through a first drainage hole and a second drainage hole respectively, wherein the first drainage hole and the second drainage hole are arranged in two rows, a plurality of holes are formed in each row, namely, the cold flow and the heat flow are layered and split and horizontally and are injected into the mixing cavity in a staggered mode, full mixing can be carried out in the mixing cavity, finally, the heat flow and the cold flow are sent into a constant-temperature tank through a primary drain pipe, the temperature of fluid in the constant-temperature tank meets the constant-temperature water habit of using constant-temperature water at any time in the shelter, and the constant-temperature tank is greatly reduced again. It should be further noted that the cooling cavity mainly functions to cool down the heat flow entering the cooling cavity from the cooling pipe for the first time, so that the residence time of the cold flow in the cooling cavity is relatively short, and the cooling can be achieved by adjusting the number of the U-shaped pipes, and the heat flow and the newly injected cold flow can impact the heat flow buffer cavity and the cold flow buffer cavity respectively after cooling down, and simultaneously the heat flow and the cold flow can enter the mixing cavity at a relatively fast speed to be rapidly mixed, that is, on the premise of ensuring that the temperature difference in the cooling cavity does not change very obviously, the probability of scaling inside the heat exchanger can be reduced to a certain extent by the heat flow buffer cavity, the cold flow buffer cavity and the fluid moving rapidly in the mixing cavity.
The primary wave plate and the secondary wave plate are sequentially arranged in the mixing cavity from bottom to top at intervals, two ends of the primary wave plate and two ends of the secondary wave plate are respectively connected with the inner side walls of the first blocking plate and the second blocking plate, a plurality of primary shunting holes are formed in the primary wave plate, a plurality of secondary shunting holes are formed in the secondary wave plate, and the plurality of primary shunting holes and the plurality of secondary shunting holes are distributed in a staggered mode. Furthermore, a primary wave plate and a secondary wave plate corresponding to the first drainage hole and the second drainage hole are arranged in the mixing cavity, and after entering the mixing cavity, the newly injected cold flow and the heat flow subjected to the first cooling are disturbed by the primary wave plate and the secondary wave plate, the flow path and the flow time of the mixed liquid in the mixing cavity are increased, so that the temperature of the fluid flowing into the constant temperature tank from the primary drainage pipe can be kept stable to a certain extent, wherein the shapes of the primary wave plate and the secondary wave plate are preferably sinusoidal in the mixing cavity, and the two wave plates in the sinusoidal shape are matched with the primary shunting holes and the secondary shunting holes which are distributed in a staggered manner, so that a plurality of strands of horizontally moving heat flows and cold flows can be divided into three mixing areas, and the heat flows and the cold flows can be rebounded for a plurality of times in the non-hole areas between the primary wave plate and the secondary wave plate, and the horizontal flow state of the fluid can be adjusted to be a vertical flow state or an undirected flow state, so that the cold flows and the heat flows are fully mixed.
The end part of one end of the primary wave plate is positioned between the two rows of first drainage holes, the end part of one end of the secondary wave plate is positioned between the two rows of second drainage holes, the end part of the other end of the primary wave plate is arranged in the two rows of second drainage holes and is positioned below the drainage holes on the lower layer, and the end part of the other end of the secondary wave plate is arranged in the two rows of first drainage holes and is positioned above the drainage holes on the upper layer. Preferably, by utilizing the flow characteristics of the cold flow and the hot flow, molecules in the hot flow are active, the activity of the molecules in the cold flow is lower, the level of the inlet of the hot flow entering the mixing cavity in the steady flow cavity is lower, and the level of the inlet of the cold flow entering the mixing cavity is higher, so that the normal upwelling and outward discharging of the fluid can still be ensured on the premise of increasing the primary wave plate and the secondary wave plate.
The aperture of the primary shunt hole is R, the aperture of the secondary shunt hole is R, and R is less than or equal to 3/4R. Preferably, the aperture sizes of the primary shunt hole and the secondary shunt hole are different, so that the disturbance amplitude of the fluid in the mixing chamber is increased again, the mixing speed of the cold fluid and the hot fluid is increased, the aperture of the secondary shunt hole positioned on the upper layer is increased, the impact speed of the rising fluid can be buffered, and the mixed fluid is prevented from forming backflow on the top of the mixing chamber; and the aperture of the primary shunt hole is set to be R, the aperture of the secondary shunt hole is set to be R, and R is less than or equal to 3/4R, so that the problem that the aperture deviation of the upper layer and the lower layer is overlarge is avoided, the intersection between the forward projection of the secondary shunt hole and the forward projection of the primary shunt hole is prevented, and the disturbance function of the primary wave plate and the secondary wave plate in normal use is ensured.
The end part of the connecting branch pipe protrudes out of the cavity wall of the cold flow buffer cavity and extends towards the middle part of the cold flow buffer cavity; the end part of the guide pipe protrudes out of the cavity wall of the heat flow buffer cavity and extends towards the middle part of the cavity wall. Furthermore, the end parts of the connecting branch pipe and the flow guide pipe are distributed near the middle parts of the cold flow buffer cavity and the heat flow buffer cavity, the initial moving displacement of the cold flow and the heat flow in the cold flow buffer cavity and the heat flow buffer cavity is shortened, the rebound displacement of the cold flow and the heat flow in the cold flow buffer cavity and the heat flow buffer cavity is increased, and the scaling probability in the cold flow buffer cavity and the heat flow buffer cavity is reduced.
A plurality of shunt tubes that are equipped with the middle part and connect the tail pipe intercommunication are opened on the shunt tubes to the shunt tubes that have a plurality of spray holes that just face the U-shaped pipe, and rotate on the shunt tubes and be provided with a plurality of turbines that correspond with the spray hole. Further, in the cooling chamber, the cold flow of pouring into in the water tank is used for carrying out preliminary cooling to the inside thermal current of U-shaped pipe, for avoiding the even contact of a plurality of U-shaped pipes and cold flow in the cooling chamber, this technical scheme sets up a plurality of shunt tubes that correspond with the U-shaped pipe on the cavity wall of cooling chamber, set up a plurality of spray holes just to the U-shaped pipe on the shunt tube, also be equipped with the turbine that matches with the spray hole on the shunt tube, with the distribution degree of consistency of cold flow in the increase cooling chamber, prevent the frequent change of thermal current temperature value that shifts out by the honeycomb duct.
The inverter is connected with the energy storage battery, and the grid-connected box is electrically connected with a power grid. Preferably, the heat generated by the solar panels is fully utilized for heating and low temperature hot water supply of temporary shelters such as shelter; the electric energy converted by the solar panel can be stored by the energy storage battery to supply power for temporary shelters such as a shelter, and can also be incorporated into a power grid through the net cage to realize additional economic benefits.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the solar energy constant temperature tank, the solar panel converts light energy into electric energy, the electric energy respectively enters the energy storage battery and the power grid through the inverter and the grid-connected box, meanwhile, heat energy generated by the solar panel during working is subjected to heat exchange with cold flow in the cooling pipe, secondary cold and heat exchange is performed on the heated cold flow through the cooling cavity in the heat exchanger, so that heat flow flowing out of the cooling pipe is firstly cooled, and then, tertiary cold and heat exchange is performed on the heat flow flowing out of the cooling cavity through the flow stabilizing cavity, so that the temperature of the fluid flowing into the constant temperature tank is ensured to be the optimal use temperature, and the temperature of the fluid continuously flowing into the constant temperature tank is kept consistent to the maximum extent, so that subsequent cold and heat conversion in the constant temperature tank can be effectively avoided, and the temperature of the fluid in the constant temperature tank is prevented from being lower than or higher than the preset optimal use temperature when in use;
2. the cooling cavity is mainly used for cooling heat flow entering the cooling cavity from the cooling pipe for the first time, so that the residence time of the cold flow in the cooling cavity is relatively short, the cold flow can be realized by adjusting the number of the U-shaped pipes, the heat flow and the newly injected cold flow can respectively impact the heat flow buffer cavity and the cold flow buffer cavity after cooling, meanwhile, the heat flow and the cold flow can enter the mixing cavity at a relatively high speed to be rapidly mixed, namely, on the premise of ensuring that the temperature difference in the cooling cavity is not obvious, the heat flow buffer cavity, the cold flow buffer cavity and the fluid rapidly moving in the mixing cavity can reduce the probability of scaling in the heat exchanger to a certain extent;
3. the shapes of the primary wave plate and the secondary wave plate are preferably sinusoidal in the mixing cavity, the two wave plates in the sinusoidal shapes are matched with the primary shunting holes and the secondary shunting holes which are distributed in a staggered mode, a plurality of strands of heat flows and cold flows moving horizontally can be divided into three mixing areas, the heat flows and the cold flows can rebound for many times in the non-hole area between the primary wave plate and the secondary wave plate, meanwhile, the horizontal flowing state of the fluids can be adjusted to be a vertical, oblique or non-directional flowing state, and the cold flows and the heat flows are fully mixed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a transverse cross-sectional view of a heat exchanger;
fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2.
Reference numbers and corresponding part names in the figures:
1-solar panel, 2-inverter, 3-combined net cage, 4-power grid, 5-heat exchanger, 51-shunt pipe, 52-turbine, 53-U-shaped pipe, 54-partition plate, 55-draft pipe, 56-heat flow buffer cavity, 57-first plugging plate, 58-secondary wave plate, 59-second plugging plate, 510-cold flow buffer cavity, 511-mixing cavity, 512-second drainage hole, 513-secondary shunt hole, 514-first drainage hole, 515-primary wave plate, 516-primary shunt hole, 6-energy storage battery, 7-constant temperature tank, 8-water tank, 9-water inlet pipe, 10-water outlet pipe, 11-connecting pipe, 12-primary water outlet pipe, 13-secondary water outlet pipe, 14-connecting branch pipe and 15-connecting tail pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limiting the present invention.
Example 1
As shown in fig. 1 to 3, the solar energy heat-preserving system comprises a solar cell panel 1, an inverter 2 and a parallel net cage 3 which are electrically connected in sequence, wherein a cooling pipe for cooling is arranged inside the solar cell panel 1, the solar energy heat-preserving system further comprises a heat exchanger 5 and a constant temperature tank 7, one end of the cooling pipe is communicated with a heat flow inlet end of the heat exchanger 5 through a water outlet pipe 10, and the other end of the cooling pipe is communicated with a water tank 8 through a water inlet pipe 9 and a connecting pipe 11;
a partition plate 54 for dividing the interior of the heat exchanger 5 into a cooling cavity and a flow stabilizing cavity which are mutually independent is arranged in the heat exchanger, a plurality of U-shaped pipes 53 are sequentially arranged in the cooling cavity from top to bottom, the U-shaped pipes 53 are communicated with each other through a vertically arranged guide pipe, the liquid inlet end of the U-shaped pipe 53 positioned on the uppermost layer is communicated with the water outlet pipe 10, and the liquid outlet end of the U-shaped pipe 53 positioned on the lowermost layer is connected with a guide pipe 55;
the first blocking plate 57 and the second blocking plate 59 are arranged in the flow stabilizing cavity at intervals, the flow stabilizing cavity is divided into a heat flow buffer cavity 56, a mixing cavity 511 and a cold flow buffer cavity 510 by the first blocking plate 57 and the second blocking plate 59, the cold flow buffer cavity 510 is communicated with the connecting pipe 11 through a connecting branch pipe 14, the mixing cavity 511 is communicated with the constant temperature tank 7 through a primary water drainage pipe 12, and the heat flow buffer cavity 56 is communicated with the flow guide pipe 55; two rows of first drainage holes 514 are formed in the first blocking plate 57 from top to bottom in sequence along the vertical direction, two rows of second drainage holes 512 are formed in the second blocking plate 59, the horizontal height of the drainage holes in the upper layer in the two rows of first drainage holes 514 is H, the horizontal height of the drainage holes in the lower layer in the two rows of second drainage holes 512 is H, and H is more than H;
the liquid inlet end of the cooling cavity is communicated with the water tank 8 through a connecting tail pipe 15, and the liquid outlet end of the cooling cavity is communicated with the secondary water discharge pipe 13.
In the specific operation of this embodiment, the cold flow of the cooling pipe forms a heat flow with unstable temperature after being heated, the heat flow enters a pipeline formed by communicating a plurality of U-shaped pipes 53 and a guide pipe through the water outlet pipe 10, and the cooling medium injected into the cooling chamber exchanges energy with the heat flow, the main purpose of the heat exchange at this time is to reduce the temperature of the heat flow to a low temperature range, the heat flow subjected to the first temperature reduction treatment enters the heat flow buffer chamber 56 through the guide pipe 55, meanwhile, the cold flow newly injected from the water tank 8 enters the cold flow buffer chamber 510 through the connecting branch pipe 14, the heat flow and the cold flow enter the mixing chamber 511 through the first drainage hole 514 and the second drainage hole 512 respectively, wherein the first drainage hole 514 and the second drainage hole 512 are two rows, and one row has a plurality of holes, i.e., the cold flow and the heat flow are layered, and the cold flow are horizontally and alternately injected into the mixing chamber 511 after being layered and being stranded, so as to be capable of being sufficiently mixed in the mixing chamber 511, and finally, the fluid temperature in the square tank 7 meets the requirement of using constant temperature water at any time, and the constant temperature water for exchanging frequency of the constant temperature tank 7 is greatly reduced again.
It should be further noted that the main function of the cooling chamber is to cool down the hot fluid entering the cooling chamber from the cooling pipe for the first time, so that the cold fluid stays in the cooling chamber for a relatively short time, and can be realized by adjusting the number of the U-shaped pipes 53, and the hot fluid and the newly injected cold fluid after cooling down can impact the hot fluid buffer chamber 56 and the cold fluid buffer chamber 510, respectively, and simultaneously the hot fluid and the cold fluid can enter the mixing chamber 511 at a relatively fast speed to be rapidly mixed, that is, on the premise of ensuring that the temperature difference in the cooling chamber is not very obvious, the probability of scaling inside the heat exchanger 5 can be reduced to a certain extent by the fluids rapidly moving in the hot fluid buffer chamber 56, the cold fluid buffer chamber 510, and the mixing chamber 511.
Example 2
As shown in fig. 1 to 3, in this embodiment, based on embodiment 1, a primary wave plate 515 and a secondary wave plate 58 are sequentially arranged in the mixing cavity 511 at intervals from bottom to top, two ends of the primary wave plate 515 and the secondary wave plate 58 are respectively connected to inner side walls of a first blocking plate 57 and a second blocking plate 59, the primary wave plate 515 is provided with a plurality of primary diversion holes 516, the secondary wave plate 58 is provided with a plurality of secondary diversion holes 513, and the plurality of primary diversion holes 516 and the plurality of secondary diversion holes 513 are distributed in a staggered manner; one end of the primary waved plate 515 is located between the two rows of first drainage holes 514, one end of the secondary waved plate 58 is located between the two rows of second drainage holes 512, the other end of the primary waved plate 515 is located below the drainage holes on the lower layer in the two rows of second drainage holes 512, and the other end of the secondary waved plate 58 is located above the drainage holes on the upper layer in the two rows of first drainage holes 514.
In this embodiment, the mixing chamber 511 is provided with a primary wave plate 515 and a secondary wave plate 58 corresponding to the first flow guiding hole 514 and the second flow guiding hole 512, and after entering the mixing chamber 511, the newly injected cold flow and the heat flow after the first temperature reduction are disturbed by the primary wave plate 515 and the secondary wave plate 58, so that the flow path and the flow time of the mixed liquid in the mixing chamber 511 are increased, and the temperature of the fluid flowing from the primary water discharging pipe 12 into the constant temperature tank 7 can be kept stable to a certain extent, wherein the shapes of the primary wave plate 515 and the secondary wave plate 58 are preferably sinusoidal in the mixing chamber 511, and two wave plates in the sinusoidal shape are matched with the primary shunting holes 516 and the secondary shunting holes 513 distributed alternately, so that a plurality of heat flows and cold flows moving horizontally can be divided into three mixing regions, and the heat flows and the cold flows can be rebounded for a plurality of times in the non-hole region between the primary wave plate 515 and the secondary wave plate 58, and the horizontal flow state of the fluid can be adjusted to be a vertical, oblique or a non-directional flow state, and the cold flows and the heat flows and the cold flows can be mixed sufficiently.
Preferably, by utilizing the flow characteristics of the cold flow and the hot flow, the molecules in the hot flow are active, the molecules in the cold flow are less active, the level of the inlet of the hot flow into the mixing chamber 511 in the steady flow chamber is lower, and the level of the inlet of the cold flow into the mixing chamber 511 is higher, so that the normal upwelling and outward discharging of the fluid can still be ensured on the premise of adding the primary wavy plate 515 and the secondary wavy plate 58.
Preferably, the aperture sizes of the primary flow-splitting holes 516 and the secondary flow-splitting holes 513 are different, so that the disturbance amplitude of the fluid in the mixing chamber 511 is increased again, the mixing speed of the cold fluid and the hot fluid is accelerated, and the aperture of the secondary flow-splitting holes 513 positioned on the upper layer is increased, so that the impact speed of the ascending fluid can be buffered, and the mixed fluid is prevented from forming backflow on the top of the mixing chamber 511; the aperture of the primary shunt hole 516 is set to be R, the aperture of the secondary shunt hole 513 is set to be R, and R ≦ 3/4R is met, so that the problem that the aperture deviation of the upper layer and the lower layer is too large is avoided, the intersection between the forward projection of the secondary shunt hole 513 and the forward projection of the primary shunt hole 516 is prevented, and the disturbance function of the primary wave plate 515 and the secondary wave plate 58 in normal use is ensured.
Example 3
As shown in fig. 1 to 3, in this embodiment, based on embodiment 1, the end of the connecting branch pipe 14 protrudes from the wall of the cold flow buffer chamber 510 and extends toward the middle thereof; the end of the flow guide tube 55 protrudes from the wall of the heat flow buffer chamber 56 and extends toward the middle thereof. The end parts of the connecting branch pipe 14 and the guide pipe 55 are distributed close to the middle parts of the cold flow buffer chamber 510 and the hot flow buffer chamber 56, so that the initial moving displacement of the cold flow and the hot flow in the cold flow buffer chamber 510 and the hot flow buffer chamber 56 is shortened, and the rebound displacement of the cold flow and the hot flow in the cold flow buffer chamber 510 and the hot flow buffer chamber 56 is increased, so that the probability of scaling in the cold flow buffer chamber 510 and the hot flow buffer chamber 56 is reduced.
For further improving the cooling effect in cooling chamber, this embodiment is in a plurality of shunt tubes 51 that are equipped with the middle part and connect tail pipe 15 intercommunication in the cooling chamber, it has a plurality of spray holes to just to the U-shaped pipe 53 to open on shunt tubes 51, and rotates on shunt tubes 51 and is provided with a plurality of turbines 52 that correspond with spray holes. In the cooling chamber, the cold flow that pours into by the water tank 8 is used for carrying out preliminary cooling to the inside thermal current of U-shaped pipe 53, for avoiding a plurality of U-shaped pipes 53 and the even contact of cold flow in the cooling chamber, this technical scheme sets up a plurality of shunt tubes 51 that correspond with U-shaped pipe 53 on the cavity wall of cooling chamber, set up a plurality of spray holes that just are to U-shaped pipe 53 on shunt tubes 51, also be equipped with the turbine 52 with spray hole assorted on shunt tubes 51, with the distribution uniformity of increase cooling chamber cold flow, prevent the frequent change of thermal current temperature value by the honeycomb duct 55 removal.
Preferably, the heat generated by the solar panel 1 is fully utilized for heating and low temperature hot water supply of temporary shelters such as shelter; the electric energy converted by the solar panel 1 can be stored by the energy storage battery 6 for supplying power to temporary shelters such as shelter, and can be incorporated into the power grid 4 through the grid box 3 for additional economic benefit.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. Shelter power supply heating system, including solar cell panel (1), dc-to-ac converter (2) and box with a net (3) that electricity is connected in proper order, be equipped with the cooling tube that is used for the cooling in solar cell panel (1) inside, its characterized in that: the device is characterized by also comprising a heat exchanger (5) and a constant temperature tank (7), wherein one end of the cooling pipe is communicated with a heat flow inlet end of the heat exchanger (5) through a water outlet pipe (10), and the other end of the cooling pipe is communicated with a water tank (8) through a water inlet pipe (9) and a connecting pipe (11);
a partition plate (54) for dividing the interior of the heat exchanger (5) into a cooling cavity and a flow stabilizing cavity which are mutually independent is arranged in the heat exchanger, a plurality of U-shaped pipes (53) are sequentially arranged in the cooling cavity from top to bottom, the U-shaped pipes (53) are communicated with each other through a vertically arranged guide pipe, the liquid inlet end of the U-shaped pipe (53) positioned at the uppermost layer is communicated with the water outlet pipe (10), and the liquid outlet end of the U-shaped pipe (53) positioned at the lowermost layer is connected with a flow guide pipe (55);
the constant-flow cavity is provided with a first blocking plate (57) and a second blocking plate (59) at intervals, the constant-flow cavity is divided into a heat flow buffer cavity (56), a mixing cavity (511) and a cold flow buffer cavity (510) by the first blocking plate (57) and the second blocking plate (59), the cold flow buffer cavity (510) is communicated with the connecting pipe (11) through a connecting branch pipe (14), the mixing cavity (511) is communicated with the constant-temperature tank (7) through a primary drainage pipe (12), and the heat flow buffer cavity (56) is communicated with the guide pipe (55); two rows of first drainage holes (514) are formed in the first plugging plate (57) from top to bottom in sequence along the vertical direction, two rows of second drainage holes (512) are formed in the second plugging plate (59), the horizontal height of the drainage holes in the upper layer in the two rows of first drainage holes (514) is H, the horizontal height of the drainage holes in the lower layer in the two rows of second drainage holes (512) is H, and H is more than H;
the liquid inlet end of the cooling cavity is communicated with the water tank (8) through a connecting tail pipe (15), and the liquid outlet end of the cooling cavity is communicated with a secondary drainage pipe (13);
the primary wave plate (515) and the secondary wave plate (58) are sequentially arranged in the mixing cavity (511) from bottom to top at intervals, two ends of the primary wave plate (515) and the secondary wave plate (58) are respectively connected with the inner side walls of the first blocking plate (57) and the second blocking plate (59), the primary wave plate (515) is provided with a plurality of primary shunting holes (516), the secondary wave plate (58) is provided with a plurality of secondary shunting holes (513), and the plurality of primary shunting holes (516) and the plurality of secondary shunting holes (513) are distributed in a staggered manner;
the one end tip of elementary wave board (515) is located between two rows of first drainage holes (514), the one end tip of secondary wave board (58) is located between two rows of second drainage holes (512), and the other end tip of elementary wave board (515) is arranged in the drainage hole below that is located the lower floor in two rows of second drainage holes (512), the other end tip of secondary wave board (58) is arranged in the drainage hole top that is located the upper floor in two rows of first drainage holes (514).
2. A shelter power and heat supply system as claimed in claim 1 wherein: the aperture of the primary shunt hole (516) is R, the aperture of the secondary shunt hole (513) is R, and R is less than or equal to 3/4R.
3. A shelter power and heat supply system as claimed in claim 1 wherein: the end part of the connecting branch pipe (14) protrudes out of the cavity wall of the cold flow buffer cavity (510) and extends towards the middle part; the end part of the guide pipe (55) protrudes out of the cavity wall of the heat flow buffer cavity (56) and extends towards the middle part of the heat flow buffer cavity.
4. A shelter power and heat supply system as claimed in claim 1 wherein: a plurality of shunt tubes (51) are arranged in the cooling cavity, the middle parts of the shunt tubes are communicated with the connecting tail pipe (15), a plurality of spraying holes which are just opposite to the U-shaped pipe (53) are formed in the shunt tubes (51), and a plurality of turbines (52) corresponding to the spraying holes are rotatably arranged on the shunt tubes (51).
5. The shelter power and heat supply system as claimed in any one of claims 1 to 4, wherein: the inverter (2) is connected with the energy storage battery (6), and the combined net cage (3) is electrically connected with the power grid (4).
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| CN202211092247.1A CN115218260B (en) | 2022-09-08 | 2022-09-08 | Square cabin power supply and heat supply system |
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| CN202211092247.1A CN115218260B (en) | 2022-09-08 | 2022-09-08 | Square cabin power supply and heat supply system |
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