CN110118437B - Waste heat recycling system for ocean hall and working method thereof - Google Patents
Waste heat recycling system for ocean hall and working method thereof Download PDFInfo
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- CN110118437B CN110118437B CN201910368785.0A CN201910368785A CN110118437B CN 110118437 B CN110118437 B CN 110118437B CN 201910368785 A CN201910368785 A CN 201910368785A CN 110118437 B CN110118437 B CN 110118437B
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- 239000002918 waste heat Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004064 recycling Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 239000013535 sea water Substances 0.000 claims abstract description 146
- 230000004087 circulation Effects 0.000 claims abstract description 97
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 239000010865 sewage Substances 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 39
- 230000017525 heat dissipation Effects 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 12
- -1 polyethylene Polymers 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 238000011017 operating method Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 2
- 239000013589 supplement Substances 0.000 abstract description 2
- 230000004083 survival effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000004075 alteration Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000242583 Scyphozoa Species 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
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- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Farming Of Fish And Shellfish (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a waste heat recycling system for a marine museum and a working method thereof, belonging to the technical field of waste heat recycling, comprising a seawater reservoir, a display pool, a sewage pool, a condenser, an evaporator, a heating device and a control system, realizing the recycling of waste heat in sewage, being used for seawater heat supply in the seawater reservoir and the display pool, saving energy and ensuring that the water temperature reaches the survival standard of marine organisms by combining a plurality of heat supply modes, measuring the water supplement amount in the display pool by a flowmeter to prevent overflow, adding a filtering device in a circulation branch of the display pool, realizing seawater filtration while supplying heat, prolonging the service period of seawater, reducing the water changing frequency, saving cost, detecting the water temperature and water level in the display pool and the seawater reservoir in real time, controlling the opening and closing of related valves and pumps by driving signals sent by a PLC (programmable logic controller), the automatic control of the water temperature and the water level in the display pool and the seawater reservoir is realized.
Description
Technical Field
The invention relates to the technical field of waste heat recycling, in particular to a waste heat recycling system for a marine museum.
Background
The marine life has high requirements on water quality and water temperature, various marine animal display pools need to be changed periodically in the operation and maintenance process of a marine museum, and a marine museum life support system refers to a set of equipment for maintaining the survival and the continuation of life of the marine life. For the marine stadium, the life support system is vital, and different marine life have different requirements for sea water temperature, therefore the life support system in different aquarium in the marine stadium needs independent design, and marine life show ponds such as tropical fish, jellyfish need heat supply throughout the year among them to maintain normal existence, generally adopt lithium bromide unit or boiler to heat it among the prior art, and the moisturizing and the invariable water temperature of maintaining show pond need consume a large amount of energy heating. However, the seawater discharged when the display pool is changed contains a large amount of waste heat, which causes energy waste, is not environment-friendly, and simultaneously, the operating cost of the ocean hall is also increased; in addition, the replacement of the water in the vitamin system of the ocean hall in the prior art mostly depends on the manual work to monitor the water level and the water temperature, and the manual work controls the water pump to replace the water, supplement the water and other work, so that the labor cost is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides a waste heat recycling system for a marine museum and a working method thereof, which aim to recycle waste heat in sewage and are used for seawater heat supply in a seawater reservoir and a display pool.
The technical scheme provided by the invention is as follows:
the utility model provides a waste heat recovery utilizes system for gymnasium, includes sea water cistern, show pond, effluent water sump, condenser, evaporimeter, heating device, sea water cistern and show pond are linked together through the water pipe of installing first solenoid valve and first centrifugal pump, are linked together through the water pipe of installing second centrifugal pump and second solenoid valve between show pond and the effluent water sump, a serial communication port, sea water cistern intercommunication has first circulation branch road, be equipped with first pneumatic butterfly valve, first water pump, second pneumatic butterfly valve, third pneumatic butterfly valve, condenser, fourth pneumatic butterfly valve, fifth pneumatic butterfly valve on the first circulation branch road in proper order, the effluent water sump intercommunication has second circulation branch road, be equipped with sixth pneumatic butterfly valve, second water pump, second pneumatic butterfly valve, condenser, fourth pneumatic butterfly valve on the second circulation branch road in proper order, Seventh pneumatic butterfly valve, evaporimeter, eighth pneumatic butterfly valve, the water inlet and the return water mouth of second circulation branch road all let in the sewage pond, the intercommunication has heat pipe and cold pipe between condenser and the evaporimeter, be equipped with the compressor on the heat pipe, be equipped with the expansion valve on the cold pipe, heating device connects in parallel at third pneumatic butterfly valve both ends through third solenoid valve and fourth solenoid valve.
Preferably, the waste heat recycling system for the ocean hall further comprises a plate heat exchanger, the display pool is communicated with a third circulation branch, a third water pump, a filtering device and the plate heat exchanger are sequentially connected to the third circulation branch, the tail end of the second circulation branch is introduced into the display pool, a first branch is arranged between a fourth pneumatic butterfly valve and a fifth pneumatic butterfly valve and communicated with the plate heat exchanger through a ninth pneumatic butterfly valve, a second branch is arranged between the first pneumatic butterfly valve and the first water pump and communicated with the plate heat exchanger through a tenth pneumatic butterfly valve.
Preferably, a stainless steel filter screen, a fine sand layer and a sponge layer are arranged in the filtering device.
Preferably, the heating device is an electric heater, and the first circulation heating branch is connected with a rubber ball cleaning device in parallel.
Preferably, a flowmeter is arranged on a water pipe between the seawater reservoir and the display pool.
Preferably, the filter screen is installed to the water inlet that first circulation branch road is located the sea water cistern, just before first circulation branch road is located first pneumatic butterfly valve, still installs first husky jar filter, the filter screen is installed to the water inlet that second circulation branch road is located the sewage pond, just before second circulation branch road is located sixth pneumatic butterfly valve, still installs the husky jar filter of second.
Preferably, the water inlet and the water return port of the first circulation branch are connected through a heat dissipation coil pipe to form a closed loop, the medium in the pipe is heat conduction oil, the water inlet and the water return port of the second circulation branch are connected through a heat absorption coil pipe to form a closed loop, and the medium in the pipe is heat conduction oil.
Preferably, the heat dissipation coil and the heat absorption coil are made of heat-resistant polyethylene or tripropyl polypropylene.
Preferably, the waste heat recycling system for the ocean hall further comprises a control system, the control system comprises a PLC controller, a first temperature detection device, a first water level detection device, a second temperature detection device and a second water level detection device, the first temperature detection device and the first water level detection device are both located in the display pool and used for detecting the water temperature and the water level in the display pool, the second temperature detection device and the second water level detection device are both located in the seawater reservoir and used for detecting the water temperature and the water level in the seawater reservoir, the PLC controller receives signals of the first temperature detection device, the first water level detection device, the second temperature detection device, the second water level detection device and the flow meter, the PLC controller is electrically connected with the first electromagnetic valve and the first centrifugal pump and sends driving signals to the first electromagnetic valve and the first centrifugal pump, and the PLC controller and the third electromagnetic valve, The fourth solenoid valve electric connection just sends drive signal to it, PLC controller and first pneumatic butterfly valve, second pneumatic butterfly valve, third pneumatic butterfly valve, fourth pneumatic butterfly valve, fifth pneumatic butterfly valve, sixth pneumatic butterfly valve, seventh pneumatic butterfly valve, eighth pneumatic butterfly valve, ninth pneumatic butterfly valve, tenth pneumatic butterfly valve, first water pump, second water pump, third water pump, compressor electric connection just send drive signal to it.
The invention also provides a working method of the waste heat recycling system for the ocean hall, which comprises the following steps:
s1: when the seawater in the display pool needs to be replaced, the second centrifugal pump and the second electromagnetic valve are opened, the seawater with the temperature in the display pool is pumped into the sewage pool for standby, and meanwhile, the external seawater is pumped into the seawater storage pool for standby after being treated.
And S2, starting a control system, and when the second temperature detection device detects that the temperature of the seawater in the seawater reservoir is lower than a set value, sending a driving signal by the PLC to execute the following work: firstly, opening a first pneumatic butterfly valve, a second pneumatic butterfly valve, a third pneumatic butterfly valve, a fourth pneumatic butterfly valve, a fifth pneumatic butterfly valve and a first water pump on a first circulation branch, and starting to circulate the seawater in the seawater reservoir; then, opening a sixth pneumatic butterfly valve, a seventh pneumatic butterfly valve, an eighth pneumatic butterfly valve and a second water pump on a second circulation branch to start seawater circulation in the sewage pool; meanwhile, the air compressor is started, heat is released when seawater in the second circulation branch circulates to the evaporator, the refrigerant in the heat pipe absorbs heat, the refrigerant is compressed by the compressor and then sent to the condenser for heat dissipation, the refrigerant flows back to the evaporator through the cold pipe after heat dissipation, a circulation is completed, the seawater in the first circulation branch absorbs heat when circulating to the condenser, the temperature is raised, the compressor consumes a small amount of electric energy to transfer the energy in the sewage pool to the seawater reservoir, and the waste heat recycling of the seawater in the sewage pool is realized.
S4: when the temperature in the seawater reservoir can not be raised to the temperature of the seawater required by the display pool by the waste heat of the seawater in the sewage pool, the PLC sends out a driving signal, all parts on the third pneumatic butterfly valve, the compressor and the second circulation branch are closed, the heating device and the third electromagnetic valve and the fourth electromagnetic valve at the two ends of the heating device are opened, and the seawater in the seawater reservoir circulates to the heating device to be heated.
And S5, when the second temperature detection device detects that the temperature of the seawater reservoir meets the requirement, the PLC sends a driving signal, the first electromagnetic valve and the first centrifugal pump are opened, the seawater is pumped into the display pool, a flow meter is arranged on a water pipe between the seawater reservoir and the display pool and used for automatically detecting the amount of water flowing into the display pool, and when the first water level detection device reaches a preset value, the PLC sends a driving signal, the first electromagnetic valve and the first centrifugal pump are closed, and the seawater replacement is completed.
S6: when the exhibition process, the temperature in the first temperature detection device detects the exhibition pond is reduced, when needing to heat, the PLC controller sends driving signal, open the third water pump on the third circulation branch road, begin to demonstrate 2 interior sea water circulations in the pond, close first pneumatic butterfly valve and fifth pneumatic butterfly valve, open ninth pneumatic butterfly valve and tenth pneumatic butterfly valve, the sea water circulation heating back flow direction plate heat exchanger in the first circulation branch road carries out the heat exchange this moment, the heat absorption temperature risees when the sea water flows through plate heat exchanger in the third circulation branch road, in order to realize utilizing the interior sea water waste heat of effluent water pond to the sea water heating in the exhibition pond. And a filtering device is arranged on the third circulating branch, and in the circulating heating process, the seawater in the display pond is subjected to impurity filtering.
S7: in the process of showing, first water level detection device detects the reduction of water level in the show pond, is less than the default, and when needing the moisturizing, the PLC controller sends drive signal, opens first solenoid valve and first centrifugal pump, with the sea water suction show pond in.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention can realize the recycling of waste heat in the sewage pool, the compressor can consume a small amount of electric energy to transfer the energy in the sewage pool into the seawater reservoir, the energy utilization rate is high, the energy waste can be greatly reduced, the operation cost of a marine hall is reduced, and the heating device is connected in parallel on the first circulation branch, so that the electric heating can be carried out when the waste heat is insufficient, the water temperature can not meet the requirement due to the insufficient waste heat in the sewage pool is prevented, and the direct heating of the seawater is realized;
(2) the third circulation branch can directly absorb heat through the plate heat exchanger, directly heat the seawater in the display pool when the temperature of the display pool is lower, and the third circulation branch is provided with the filtering device, so that the seawater in the display pool can be simultaneously subjected to impurity filtering in the circulation heating process, the salinity of the seawater is not influenced, the service cycle is prolonged, and the water exchange frequency is reduced;
(3) the water inlet and the water return port of the first circulation branch are communicated through the heat dissipation coil pipe, the water inlet and the water return port of the second circulation branch are communicated through the heat absorption coil pipe, the medium in the pipe is heat conduction oil, the heat conduction oil is used for indirectly transferring heat, impurities in seawater can be prevented from entering the pipe along with seawater circulation, the pipeline cleaning is not needed, the heat dissipation coil pipe and the heat absorption coil pipe are made of heat-resistant polyethylene or tripropyl polypropylene, the pipeline can be prevented from being corroded in seawater, and indirect heating of the seawater is realized;
(4) the invention is also provided with a control system which can detect the water temperature and water level in the display pool and the seawater reservoir in real time, and control the opening and closing of related valves and pumps through the driving signals sent by the PLC controller, thereby realizing the automatic control of the water temperature and water level in the display pool and the seawater reservoir and saving the labor cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a waste heat recovery system for a marine facility according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a first circulation branch in embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of a second circulation branch in embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of a third circulation branch in embodiment 1 of the present invention;
FIG. 5 is a control system schematic of the present invention;
fig. 6 is a schematic diagram of a system according to embodiment 3 of the present invention.
In the figure: 1. a seawater reservoir; 2. a display pool; 3. a sewage tank; 4. a plate heat exchanger; 5. a condenser; 6. an evaporator; 7. a heating device; 8. a first sand cylinder filter; 9. a first circulation branch; 10. a first solenoid valve; 10-1, a first pneumatic butterfly valve; 10-2, a second pneumatic butterfly valve; 10-3, a third pneumatic butterfly valve; 10-4, a fourth pneumatic butterfly valve; 10-5, a fifth pneumatic butterfly valve; 10-6, a sixth pneumatic butterfly valve; 10-7, a seventh pneumatic butterfly valve; 10-8, an eighth pneumatic butterfly valve; 10-9, ninth pneumatic butterfly valve; 10-10, tenth pneumatic butterfly valve; 11. a first centrifugal pump; 11-1, a first water pump; 11-2, a second water pump; 11-3, a third water pump; 12. a heat-dissipating coil pipe; 13. a second circulation branch; 14. a heat pipe; 15. cooling the pipe; 16. a compressor; 17. an expansion valve; 18. a heat absorbing coil; 19. a third circulation branch; 20. a first branch; 21. a second branch circuit; 22. a rubber ball cleaning device; 23. a flow meter; 24. a second sand cylinder filter; 25. a filtration device; 25-1, stainless steel filter screen; 25-2, fine sand layer; 25-3 parts of sponge layer; 26. a second solenoid valve; 27. a third electromagnetic valve; 28. a fourth solenoid valve; 29. a second centrifugal pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1-4, a waste heat recycling system for a marine facility comprises a seawater reservoir 1, a display pool 2, a sewage pool 3, a condenser 5, an evaporator 6 and a heating device 7, wherein the seawater reservoir 1 and the display pool 2 are communicated through a water pipe provided with a first electromagnetic valve 10 and a first centrifugal pump 11, the display pool 2 and the sewage pool 3 are communicated through a water pipe provided with a second centrifugal pump 29 and a second electromagnetic valve 26, as shown in fig. 2, the seawater reservoir 1 is communicated with a first circulation branch 9, the first circulation branch 9 is sequentially provided with a first pneumatic butterfly valve 10-1, a first water pump 11-1, a second pneumatic butterfly valve 10-2, a third pneumatic butterfly valve 10-3, a condenser 5, a fourth pneumatic butterfly valve 10-4 and a fifth pneumatic butterfly valve 10-5, a water inlet and a water return port of the first circulation branch 9 are communicated into the seawater reservoir 1, as shown in fig. 3, the wastewater tank 3 is communicated with a second circulation branch 13, the second circulation branch 13 is sequentially provided with a sixth pneumatic butterfly valve 10-6, a second water pump 11-2, a seventh pneumatic butterfly valve 10-7, an evaporator 6 and an eighth pneumatic butterfly valve 10-8, a water inlet and a water return port of the second circulation branch 13 are communicated into the wastewater tank 3, as shown in fig. 1, a heat pipe 14 and a cold pipe 15 are communicated between the condenser 5 and the evaporator 6, the heat pipe 14 is provided with a compressor 16, the cold pipe 15 is provided with an expansion valve 17, and the heating device 7 is connected in parallel with two ends of the third pneumatic butterfly valve 10-3 through a third electromagnetic valve 27 and a fourth electromagnetic valve 28.
As shown in fig. 1 and 4, the system further comprises a plate heat exchanger 4, the display pool 2 is communicated with a third circulation branch 19, the third circulation branch 19 is sequentially connected with a third water pump 11-3, a filtering device 25 and the plate heat exchanger 4, the tail end of the second circulation branch 19 is introduced into the display pool 2, as shown in fig. 1, a first branch 20 is arranged between the fourth pneumatic butterfly valve 10-4 and the fifth pneumatic butterfly valve 10-5, the first branch 20 is communicated with the plate heat exchanger 4 through the ninth pneumatic butterfly valve 10-9, a second branch 21 is arranged between the first pneumatic butterfly valve 10-1 and the first water pump 11-1, and the second branch 21 is communicated with the plate heat exchanger 4 through the tenth pneumatic butterfly valve 10-10.
As shown in figures 1 and 2, a stainless steel filter screen 25-1, a fine sand layer 25-2 and a sponge layer 25-3 are arranged in the filter device 25, and the three-layer filter device is used for filtering suspended particles in seawater.
Specifically, the heating device 7 is an electric heater, and heats the circulating seawater in the first branch 9 when the temperature in the seawater reservoir 1 cannot be raised to the seawater temperature required by the display pool 2 by the waste heat of the seawater in the wastewater tank 3.
As shown in fig. 1 and 2, the first circulation heating branch 9 is connected in parallel with a rubber ball cleaning device 22 for periodically cleaning the first circulation branch 9 to prevent foreign matters from accumulating in the pipeline and blocking the pipeline.
As shown in fig. 1, a flow meter 23 is installed on a water pipe between the seawater reservoir 1 and the display case 2 to automatically detect the amount of water flowing into the display case 2.
Specifically, the filter screen is installed to the water inlet that first circulation branch road 9 is located sea water cistern 1, just before lieing in first pneumatic butterfly valve 10-1 on the first circulation branch road 9, still installs first husky jar filter 8, the filter screen is installed to the water inlet that second circulation branch road 13 is located effluent water sump 2, just second circulation branch road 13 is located before sixth pneumatic butterfly valve 10-6, still installs second husky jar filter 24.
Set up filter equipment on the third circulation branch, can carry out impurity filtering to the sea water in the show pond simultaneously in the circulation heating process to can not influence sea water salinity, prolong life cycle, reduce and trade the water frequency.
The filter screen, the first sand cylinder filter 8 and the second sand cylinder filter 24 in the system are all used for filtering larger impurities such as shells, stones and algae in the seawater, and the rubber ball cleaning device 22 is used for flushing the first circulation branch 9 regularly. It should be noted that the device for periodically flushing the first circulation branch 9 may be a rubber ball cleaning device 22 or other pipeline cleaning device, and the embodiment of the present invention is not limited to this.
As shown in fig. 5, the system further includes a control system, the control system includes a PLC controller, a first temperature detection device, a first water level detection device, a second temperature detection device, and a second water level detection device, the first temperature detection device and the first water level detection device are both located in the display pool 2 and are used for detecting the water temperature and the water level in the display pool 2, the second temperature detection device and the second water level detection device are both located in the seawater reservoir 1 and are used for detecting the water temperature and the water level in the seawater reservoir 1, the PLC controller receives signals of the first temperature detection device, the first water level detection device, the second temperature detection device, the second water level detection device, and the flow meter 23, the PLC controller is electrically connected to the first electromagnetic valve 10 and the first centrifugal pump 11 and sends driving signals to the first electromagnetic valve and the first centrifugal pump 11, and the PLC controller and the third electromagnetic valve (27) are connected to the controller, The PLC is electrically connected with the first pneumatic butterfly valve 10-1, the second pneumatic butterfly valve 10-2, the third pneumatic butterfly valve 10-3, the fourth pneumatic butterfly valve 10-4, the fifth pneumatic butterfly valve 10-5, the sixth pneumatic butterfly valve 10-6, the seventh pneumatic butterfly valve 10-7, the eighth pneumatic butterfly valve 10-8, the ninth pneumatic butterfly valve 10-9, the tenth pneumatic butterfly valve 10-10, the first water pump 11-1, the second water pump 11-2, the third water pump 11-3 and the compressor 16 and sends a driving signal to the first pneumatic butterfly valve 10-1, the second pneumatic butterfly valve 10-2, the third pneumatic butterfly valve 10-3, the fourth pneumatic butterfly valve 10-4, the fifth pneumatic butterfly valve 10-5 and the sixth pneumatic butterfly valve.
Preferably, components in the waste heat recycling system for the ocean, which are in direct contact with seawater, in the embodiment of the invention are made of materials with good heat conductivity, strong pressure bearing capacity and good corrosion resistance, such as titanium alloy, nickel-copper alloy and engineering plastics, so that the corrosivity of the seawater environment on the components can be reduced, wherein the components include, but are not limited to, condensers, evaporators, heating devices, electromagnetic valves and the like.
Example 2
On the basis of embodiment 1, the present invention also provides an operating method of the waste heat recovery and utilization system for the ocean hall, which comprises the following steps:
s1: when the seawater in the display pool 2 needs to be replaced, the second centrifugal pump 29 and the second electromagnetic valve 26 are manually opened, and the seawater with the temperature in the display pool 2 is pumped into the sewage pool 3 for later use; meanwhile, after being treated, the outside seawater is pumped into the seawater reservoir 1 for standby.
And S2, starting a control system, and when the second temperature detection device detects that the temperature of the seawater in the seawater reservoir 1 is lower than a set value, sending a driving signal by the PLC controller to control the following work to be executed: firstly, opening a first pneumatic butterfly valve 10-1, a second pneumatic butterfly valve 10-2, a third pneumatic butterfly valve 10-3, a fourth pneumatic butterfly valve 10-4, a fifth pneumatic butterfly valve 10-5 and a first water pump 11-1 on a first circulation branch 9, and starting to circulate the seawater in a seawater reservoir 1; then, opening a sixth pneumatic butterfly valve 10-6, a seventh pneumatic butterfly valve 10-7, an eighth pneumatic butterfly valve 10-8 and a second water pump 11-2 on a second circulation branch 13 to start seawater circulation in the sewage pool 2; meanwhile, the air compressor 16 is started, the seawater in the second circulation branch 13 releases heat when circulating to the evaporator 6, the refrigerant in the heat pipe 14 absorbs heat, the refrigerant is compressed by the compressor 16 and then sent to the condenser 5 for heat dissipation, the refrigerant flows back to the evaporator through the cold pipe 15 after heat dissipation to complete a cycle, the seawater in the first circulation branch 9 absorbs heat when circulating to the condenser 5, the temperature rises, the compressor 16 consumes a small amount of electric energy to transfer the energy in the sewage pool 3 to the seawater reservoir 1, and the waste heat recycling of the seawater in the sewage pool 3 is realized.
S4: when the temperature in the seawater reservoir 1 cannot be raised to the temperature of the seawater required by the display pool 2 by the waste heat of the seawater in the sewage pool 3, the PLC sends out a driving signal, all the parts on the third pneumatic butterfly valve 10-3, the compressor 16 and the second circulation branch 13 are closed, the heating device 7 and the third electromagnetic valve 27 and the fourth electromagnetic valve 28 at the two ends of the heating device are opened, and the seawater in the seawater reservoir 1 circulates to the heating device 7 for heating.
And S5, when the second temperature detection device detects that the temperature of the seawater reservoir 1 meets the requirement, the PLC sends a driving signal, the first electromagnetic valve 10 and the first centrifugal pump 11 are opened, the seawater is pumped into the display pool 2, a flow meter 23 is arranged on a water pipe between the seawater reservoir 1 and the display pool 2 and used for automatically detecting the amount of water flowing into the display pool 2, and when the first water level detection device reaches a preset value, the PLC sends a driving signal, the first electromagnetic valve 10 and the first centrifugal pump 11 are closed, and the seawater replacement is completed.
S6: in the display process, the first temperature detection device detects that the temperature of water in the display pool 2 is reduced, when heating is needed, the PLC sends out a driving signal, the third water pump 11-3 on the third circulation branch 19 is started, seawater circulation in the display pool 2 is started, the first pneumatic butterfly valve 10-1 and the fifth pneumatic butterfly valve 10-5 are closed, the ninth pneumatic butterfly valve 10-9 and the tenth pneumatic butterfly valve 10-10 are opened, the seawater in the first circulation branch 9 flows to the plate heat exchanger 4 for heat exchange after being circularly heated, and the heat absorption temperature of the seawater in the third circulation branch 19 rises when flowing through the plate heat exchanger 4, so that the seawater in the sewage pool 3 is used for heating the seawater in the display pool 2. And a filtering device 25 is arranged on the third circulating branch 19, so that the seawater in the display pond can be subjected to impurity filtering in the circulating heating process.
S7: in the process of exhibition, the first water level detection device detects that the water level in the exhibition pool 2 is reduced and is lower than a preset value, and when water is required to be supplemented, the PLC sends out a driving signal, opens the first electromagnetic valve 10 and the first centrifugal pump 11, and pumps seawater into the exhibition pool 2.
Example 3
As shown in fig. 6, on the basis of embodiment 1, a rubber ball cleaning device 22, a filter screen of a water inlet of a first circulation branch 9 and a first sand cylinder filter 8, and a filter screen of a water inlet of a second circulation branch 13 and a second sand cylinder filter 24 are removed, the water inlet and the water return port of the first circulation branch 9 are communicated through a heat dissipation coil 12 to form a closed loop, a medium in the closed loop is heat conduction oil, the water inlet and the water return port of the second circulation branch 13 are communicated through a heat absorption coil 18 to form a closed loop, and a medium in the closed loop is heat conduction oil. The heat dissipation coil 12 and the heat absorption coil 18 are made of heat-resistant polyethylene, and in other embodiments, the heat dissipation coil 12 and the heat absorption coil 18 may also be made of tripropylene polypropylene.
The heat absorption coil 18 absorbs heat from the sewage tank 3, the heat dissipation coil 12 heats the seawater reservoir 1, and heat is indirectly transferred through heat conduction oil, so that impurities in seawater can be prevented from entering the pipe along with seawater circulation, and the pipeline cleaning is not required.
The heat dissipation coil pipe 12 is laid at the bottom of the seawater reservoir 1, the heat absorption coil pipe 18 is laid at the bottom of the sewage reservoir 3, heat preservation layers are arranged at the bottoms of the two water reservoirs, pipelines are laid on the heat preservation layers, then the pipelines are covered with concrete, the bottoms of the water reservoirs are trowelled, and later-stage cleaning of the water reservoirs is facilitated.
In other embodiments, the system may also be configured with an intelligent control system that includes the following functions: a water quality monitoring function, a filter cleaning prompting function and the like.
Although embodiments of the present invention have been shown and described, it will be understood that the embodiments described above are illustrative and should not be construed as limiting the invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the embodiments described above without departing from the spirit and scope of the invention, and that such changes, modifications, substitutions and alterations in combination are intended to be included within the scope of the invention.
Claims (9)
1. The working method of the waste heat recycling system for the ocean hall is characterized in that the waste heat recycling system applicable to the method comprises a seawater reservoir (1), a display pool (2), a sewage pool (3), a condenser (5), an evaporator (6) and a heating device (7), wherein the seawater reservoir (1) is communicated with the display pool (2) through a water pipe provided with a first electromagnetic valve (10) and a first centrifugal pump (11), and the display pool (2) is communicated with the sewage pool (3) through a water pipe provided with a second centrifugal pump (29) and a second electromagnetic valve (26), and is characterized in that the seawater reservoir (1) is communicated with a first circulating branch (9), and a first pneumatic butterfly valve (10-1), a first water pump (11-1), a second pneumatic butterfly valve (10-2) and a second pneumatic butterfly valve (10-2) are sequentially arranged on the first circulating branch (9), A third pneumatic butterfly valve (10-3), a condenser (5), a fourth pneumatic butterfly valve (10-4) and a fifth pneumatic butterfly valve (10-5), wherein a water inlet and a water return port of the first circulating branch (9) are communicated with the seawater reservoir (1), the sewage reservoir (3) is communicated with a second circulating branch (13), the second circulating branch (13) is sequentially provided with a sixth pneumatic butterfly valve (10-6), a second water pump (11-2), a seventh pneumatic butterfly valve (10-7), an evaporator (6) and an eighth pneumatic butterfly valve (10-8), the water inlet and the water return port of the second circulating branch (13) are communicated with the sewage reservoir (3), a heat pipe (14) and a cold pipe (15) are communicated between the condenser (5) and the evaporator (6), and a compressor (16) is arranged on the heat pipe (14), an expansion valve (17) is arranged on the cold pipe (15), and the heating device (7) is connected in parallel with the two ends of the third pneumatic butterfly valve (10-3) through a third electromagnetic valve (27) and a fourth electromagnetic valve (28);
the method comprises the following steps:
s1: when the seawater in the display pool (2) needs to be replaced, opening a second centrifugal pump (29) and a second electromagnetic valve (26), pumping the seawater with the temperature in the display pool (2) into a sewage pool (3) for later use, and simultaneously pumping the external seawater into a seawater reservoir (1) for later use after being treated;
s2, starting a control system, and when the second temperature detection device detects that the temperature of seawater in the seawater reservoir (1) is lower than a set value, sending a driving signal by the PLC to execute the following work: firstly, opening a first pneumatic butterfly valve (10-1), a second pneumatic butterfly valve (10-2), a third pneumatic butterfly valve (10-3), a fourth pneumatic butterfly valve (10-4), a fifth pneumatic butterfly valve (10-5) and a first water pump (11-1) on a first circulation branch (9) and starting to circulate the seawater in the seawater reservoir (1); then, opening a sixth pneumatic butterfly valve (10-6), a seventh pneumatic butterfly valve (10-7), an eighth pneumatic butterfly valve (10-8) and a second water pump (11-2) on a second circulation branch (13) to start seawater circulation in the sewage pool (2); meanwhile, an air compressor (16) is started, heat is released when seawater in the second circulation branch (13) circulates to the evaporator (6), refrigerant absorbs heat in a heat pipe (14), the refrigerant is compressed by the compressor (16) and then sent to the condenser (5) for heat dissipation, the refrigerant flows back to the evaporator (6) through a cold pipe (15) after heat dissipation, a circulation is completed, and the seawater in the first circulation branch (9) absorbs heat when circulating to the condenser (5), so that the temperature is increased;
s4: when the temperature in the seawater reservoir (1) cannot be raised to the seawater temperature required by the display pool (2) by the waste heat of the seawater in the sewage pool (3), the PLC sends out a driving signal, all parts on a third pneumatic butterfly valve (10-3), a compressor (16) and a second circulation branch (13) are closed, a heating device (7) and third electromagnetic valves (27) and fourth electromagnetic valves (28) at two ends of the heating device are opened, and the seawater in the seawater reservoir (1) circulates to the heating device (7) to be heated;
s5, when the second temperature detection device detects that the temperature of the seawater reservoir (1) meets the requirement, the PLC sends a driving signal, the first electromagnetic valve (10) and the first centrifugal pump (11) are opened, the seawater is pumped into the display pool (2), a flowmeter (23) is installed on a water pipe between the seawater reservoir (1) and the display pool (2) and used for automatically detecting the amount of water flowing into the display pool (2), and when the first water level detection device detects that the water level reaches a preset value, the PLC sends a driving signal, the first electromagnetic valve (10) and the first centrifugal pump (11) are closed, and the seawater replacement is completed;
s6: in the display process, the first temperature detection device detects that the water temperature in the display pool (2) is reduced, when heating is needed, the PLC sends a driving signal, a third water pump (11-3) on a third circulation branch (19) is started, seawater circulation in the display pool (2) is started, a first pneumatic butterfly valve (10-1) and a fifth pneumatic butterfly valve (10-5) are closed, a ninth pneumatic butterfly valve (10-9) and a tenth pneumatic butterfly valve (10-10) are opened, seawater in the first circulation branch (9) flows to a plate heat exchanger (4) for heat exchange after being circularly heated, the heat absorption temperature of the seawater in the third circulation branch (19) rises when the seawater flows through the plate heat exchanger (4) so as to heat the seawater in the display pool (2) by using the waste heat of the seawater in the sewage pool (3), and a filtering device (25) is arranged on the third circulation branch, in the circulating heating process, simultaneously filtering impurities of the seawater in the display pool (2);
s7: in the process of exhibition, the first water level detection device (27) detects that the water level in the exhibition pond (2) is reduced and is lower than a preset value, and when water is required to be supplemented, the PLC sends a driving signal, opens the first electromagnetic valve (10) and the first centrifugal pump (11), and pumps seawater into the exhibition pond 2.
2. The working method of the waste heat recycling system for the ocean according to claim 1, further comprising a plate heat exchanger (4), the display pool (2) is communicated with the third circulation branch (19), the third circulation branch (19) is sequentially connected with a third water pump (11-3), a filtering device (25) and the plate heat exchanger (4), the end of the third circulation branch (19) is communicated into the display pool (2), a first branch (20) is arranged between the fourth pneumatic butterfly valve (10-4) and the fifth pneumatic butterfly valve (10-5), the first branch (20) is communicated with the plate heat exchanger (4) through a ninth pneumatic butterfly valve (10-9), a second branch (21) is arranged between the first pneumatic butterfly valve (10-1) and the first water pump (11-1), the second branch (21) is communicated with the plate heat exchanger (4) through a tenth pneumatic butterfly valve (10-10).
3. The working method of the waste heat recovery system for the marine stadium according to claim 2, characterized in that the filtering device (25) is provided with a stainless steel screen (25-1), a fine sand layer (25-2) and a sponge layer (25-3).
4. The method of claim 1, wherein the heating device (7) is an electric heater, and the first circulation heating branch (9) is connected in parallel with a rubber ball cleaning device (22).
5. The operating method of the waste heat recovery system for a marine stadium according to claim 1, characterized in that a flow meter (23) is installed on a water pipe between the seawater reservoir (1) and the display pond (2).
6. The method of claim 1, wherein the first circulation branch (9) is provided with a filter screen at the inlet of the seawater reservoir (1), and the first circulation branch (9) is provided with a first sand cylinder filter (8) before the first pneumatic butterfly valve (10-1), and the second circulation branch (9) is provided with a filter screen at the inlet of the wastewater tank (2), and the second circulation branch (9) is provided with a second sand cylinder filter (24) before the sixth pneumatic butterfly valve (10-6).
7. The operating method of the waste heat recycling system for the ocean according to claim 1, wherein the water inlet and the water return of the first circulation branch (9) are connected by a heat dissipation coil (12) to form a closed loop, the medium in the loop is heat transfer oil, the water inlet and the water return of the second circulation branch (13) are connected by a heat absorption coil (18) to form a closed loop, and the medium in the loop is heat transfer oil.
8. The method of claim 7, wherein the heat-dissipating coil (12) and the heat-absorbing coil (18) are made of heat-resistant polyethylene or tripropyl polypropylene.
9. The method of operating the waste heat recycling system for marine facility as claimed in any one of claims 1 to 8, further comprising a control system, wherein the control system comprises a PLC controller, a first temperature detecting device, a first water level detecting device, a second temperature detecting device, and a second water level detecting device, the first temperature detecting device and the first water level detecting device are both located in the display pool (2) for detecting the water temperature and water level in the display pool (2), the second temperature detecting device and the second water level detecting device are both located in the seawater reservoir (1) for detecting the water temperature and water level in the seawater reservoir (1), the PLC controller receives signals of the first temperature detecting device, the first water level detecting device, the second temperature detecting device, the second water level detecting device, and a flow meter (23), and the PLC controller is connected with the first solenoid valve (10), The first centrifugal pump (11) is electrically connected and sends a driving signal to the first centrifugal pump, the PLC is electrically connected with the third electromagnetic valve (27) and the fourth electromagnetic valve (28), and sending a driving signal to the PLC controller, wherein the PLC controller is electrically connected with a first pneumatic butterfly valve (10-1), a second pneumatic butterfly valve (10-2), a third pneumatic butterfly valve (10-3), a fourth pneumatic butterfly valve (10-4), a fifth pneumatic butterfly valve (10-5), a sixth pneumatic butterfly valve (10-6), a seventh pneumatic butterfly valve (10-7), an eighth pneumatic butterfly valve (10-8), a ninth pneumatic butterfly valve (10-9), a tenth pneumatic butterfly valve (10-10), a first water pump (11-1), a second water pump (11-2), a third water pump (11-3) and a compressor (16), and sends the driving signal to the PLC controller.
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| CN109798159B (en) * | 2019-02-13 | 2019-10-25 | 孙诚刚 | Distributed energy-changing method and system |
| CN113294911A (en) * | 2021-05-20 | 2021-08-24 | 机械工业第九设计研究院有限公司 | Dedicated economizer of high temperature water production |
| CN117398838B (en) * | 2023-10-16 | 2024-05-10 | 英德市西洲气体有限公司 | Multistage filtration's high-purity acetylene purification device |
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