CN110849037A - River water source heat pump suitable for seawater jacking action area and control method - Google Patents
River water source heat pump suitable for seawater jacking action area and control method Download PDFInfo
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- CN110849037A CN110849037A CN201911126510.2A CN201911126510A CN110849037A CN 110849037 A CN110849037 A CN 110849037A CN 201911126510 A CN201911126510 A CN 201911126510A CN 110849037 A CN110849037 A CN 110849037A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
Abstract
The invention belongs to the field of water source heat pumps, and discloses a river water source heat pump suitable for a seawater jacking action area and a control method. The river water source heat pump system is simple, can meet the requirements of different water qualities, and improves the safety and reliability of the system; a river water source heat pump system control method.
Description
Technical Field
The invention belongs to the field of water source heat pumps, and particularly relates to a river water source heat pump suitable for a seawater jacking action area and a control method.
Background
With the rapid development of coastal areas, the coastal areas face huge energy supply pressure, so that river water source heat pumps are increasingly applied. River source heat pumps also face some water quality and corrosion problems while providing comfort, especially in the estuary areas.
At the sea entrance, when tide occurs, the water level of the seawater rises and flows back into the river channel from the sea entrance, the seawater and the river water have different densities, the river water is above and the seawater is below, and the jacking effect is generated. At the moment, the water source extracted from the river water source is seawater, and the seawater has high salinity, so that the water intake pipeline and the heat exchangers in the heat pump unit are seriously corroded, the service life and the performance of the heat pump unit are greatly shortened, and the economic cost is increased.
People mainly solve the problem of non-corrosion resistance of the pipeline by selecting a corrosion-resistant pipeline. The technology solves the problems existing in the river water source heat pump technology to a certain extent, but can not solve the corrosion problem of a heat exchanger in a heat pump unit.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a river water source heat pump suitable for a seawater jacking action area and a control method.
The river water source heat pump suitable for the seawater jacking action area comprises a heat pump unit, wherein a water inlet and a water outlet of the heat pump unit are respectively connected with a water inlet pipeline and a water discharge pipeline, and the river water source heat pump further comprises a reservoir cooling system and a control system; the water reservoir cooling system comprises a water reservoir, a drainage circulating pump, a dilution water pump, a drainage circulating cooling spray head, a ball float valve, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a drainage circulating pipeline and a thin water pipeline, wherein the ball float valve, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the drainage circulating pipeline and the thin water pipeline; the first electromagnetic valve and the second electromagnetic valve are sequentially arranged on the water inlet pipeline, the third electromagnetic valve is arranged on the water outlet pipeline, two ends of the dilute water pipeline are connected with the water inlet pipeline respectively connected between the reservoir and the first electromagnetic valve and the second electromagnetic valve, the dilution water pump and the fourth electromagnetic valve are arranged on the dilute water pipeline, one end of the water outlet circulation pipeline is provided with the water outlet circulation cooling spray head, the other end of the water outlet circulation pipeline is connected with the water outlet pipeline between the water outlet of the heat pump unit and the third electromagnetic valve, and the fifth electromagnetic valve and the water outlet circulation pump are arranged on the water outlet circulation pipeline; the drainage circulating cooling spray head is arranged above the water storage tank; the control system comprises a salinity sensor and a controller, the salinity sensor is arranged at an inlet of the heat pump unit, and the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the salinity sensor respectively.
Preferably, the river water source heat pump further comprises a tap water cooling pipe network and a tap water replenishing pipe connected with the tap water cooling pipe network, and the tap water cooling pipe network is arranged in the water storage tank.
Preferably, the tap water cooling pipe network is in a serpentine shape, and the tap water cooling pipe network is arranged in the middle of the reservoir.
Preferably, the river water source heat pump further comprises a cyclone sand remover arranged on the water inlet pipeline.
Preferably, the float valve is mounted at a height 1/4 to 1/5 from the top of the reservoir.
The control method of the river water source heat pump suitable for the seawater jacking action area comprises the following steps: a salinity sensor is used for monitoring and acquiring the salinity value at the inlet of the river water source heat pump unit in real time, when the salinity value is less than or equal to 0.5%, the system enters a normal working condition, and seawater is directly discharged from a water discharge pipeline from a water inlet pipeline through the heat pump unit; when the salinity value is more than 0.5% and less than 2.5%, the system enters a water replenishing-diluting condition, and a dilution water pump feeds water in the reservoir into a water inlet pipeline through a dilution water pipeline; when the salinity value is more than or equal to 2.5 percent, the system enters a self-circulation condition, the water in the reservoir enters a water inlet pipeline through a dilute water pipeline by the dilution water pump, and then enters the drainage circulation cooling spray head through the heat pump unit and the self-drainage circulation pipeline.
Preferably, the control method for the system to enter the normal working condition specifically comprises the following steps: the controller controls the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened and controls the fourth electromagnetic valve and the fifth electromagnetic valve to be closed.
Preferably, the method for controlling the system to enter the water replenishing-diluting condition specifically comprises the following steps: the float valve automatically obtains the liquid level height of the water storage tank:
if the height of the liquid level of the water storage tank is greater than the set low value of the floating ball valve and is less than or equal to the set high value of the floating ball valve, the controller controls the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve to be opened and controls the fifth electromagnetic valve to be closed; the water taking pump takes water, the water passes through the water suction port, then passes through the first electromagnetic valve, and meanwhile, the dilute water pipeline system performs water supplementing and seawater diluting, and the water enters the river water source heat pump unit after the salinity value is less than or equal to 0.5%, then passes through the drainage pipeline, flows through the third electromagnetic valve, and enters the drainage port to be discharged;
if the height of the liquid level of the water storage tank is less than or equal to the set low value of the ball float valve, the controller controls the third electromagnetic valve to be closed, and controls the first electromagnetic valve, the second electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve to be opened; the water taking pump takes water, the water passes through a water suction port and a first electromagnetic valve, meanwhile, a dilute water pipeline system performs water supplementing and seawater diluting, the water enters a river water source heat pump unit after the salinity value is less than or equal to 0.5%, then, a part of circulating water passes through a drainage pipeline, flows through a third electromagnetic valve, enters a drainage port and is discharged, the other part of the circulating water passes through a drainage circulating pipeline, flows through a fifth electromagnetic valve and a drainage circulating pump and enters a drainage circulating cooling spray head, the drainage circulating cooling spray head sprays a tap water cooling pipe network from top to bottom, and the sprayed water enters a reservoir after being cooled by the tap water cooling pipe network;
preferably, the control method for the system to enter the self-circulation condition specifically comprises the following steps: the controller controls the second electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve to be opened, controls the first electromagnetic valve and the third electromagnetic valve to be closed, and the float valve automatically acquires the liquid level height of the water storage tank:
if the liquid level of the reservoir is higher than the set low value of the ball float valve and is lower than or equal to the set high value of the ball float valve, the dilution water pump flows through the fourth electromagnetic valve after taking water from the reservoir, then flows through the second electromagnetic valve, enters the river water source heat pump unit, then flows through the drainage circulation pipeline, flows through the fifth electromagnetic valve and the drainage circulation pump, enters the drainage circulation cooling spray head, the drainage circulation cooling spray head sprays a tap water cooling pipe network from top to bottom, and the sprayed water enters the reservoir after being cooled by the tap water cooling pipe network,
if the height of the liquid level of the water storage tank is smaller than or equal to the set low value of the ball float valve, the water is taken from the water storage tank by the dilution water pump, flows through the fourth electromagnetic valve, passes through the second electromagnetic valve, enters the river water source heat pump unit, then passes through the drainage circulation pipeline, flows through the fifth electromagnetic valve and the drainage circulation pump, enters the drainage circulation cooling spray head, the drainage circulation cooling spray head sprays a tap water cooling pipe network from top to bottom, and the sprayed water enters the water storage tank after being cooled by the tap water cooling pipe network.
Preferably, the lower value of the float valve is 20 to 30 percent of the height of the water reservoir; the high value of the float valve is 70 to 80 percent of the height of the water reservoir. In summary, the advantages and positive effects of the invention are:
1. the river water source heat pump system provided by the invention is simple, can meet the requirements of different water qualities, and improves the safety and reliability of the system;
2. the river water source heat pump system control method provided by the invention is simple and reliable to operate;
3. the cold energy of the tap water pipe network is fully utilized to carry out spray cooling on the drained water, and certain energy-saving effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a river water source heat pump suitable for a seawater jacking action area according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a control method of a river water source heat pump suitable for a seawater jacking action area according to an embodiment of the present invention.
In the figure: 1. a water absorber; 2. a water taking pump; 3. a cyclone desander; 4. a first solenoid valve; 5. a second solenoid valve; 6. a heat pump unit; 7. a third electromagnetic valve; 8. a water outlet; 9. a reservoir; 10. a dilution water pump; 11. a fourth solenoid valve; 12. a drain circulation pump; 13. a fifth solenoid valve; 14. a water discharge circulating cooling spray head; 15. a controller; 16. a salinity sensor; 17. a tap water cooling pipe network, 18 and a tap water replenishing pipe; 19. a float valve; 20. a water inlet pipeline; 21. a drain line; 22. a drain circulation line; 23. a dilute water pipeline.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Aiming at the problems in the prior art, the invention provides a river water source heat pump suitable for a seawater jacking action area and a control method thereof, and the invention is described in detail below with reference to the attached drawings 1 and 2.
The river water source heat pump suitable for the seawater jacking action area comprises a conventional water intake 1, a water inlet pipeline 20, a water intake pump 2, a cyclone desander 3, a river water source heat pump unit 6, a water outlet 8 and a water drainage pipeline 21, wherein a reservoir cooling system and a control system are added on the basis of the conventional river water source heat pump system; can realize the cooling to the cistern normal water through cistern cooling system to carry out remote control to cistern cooling system through control system, realize quick cooling and the cooling of water through opening and closing different solenoid valves.
In the technical scheme, the reservoir cooling system comprises a reservoir 9, a drainage circulating pump 12, a dilution water pump 10, a drainage circulating cooling spray head 14, a ball float valve 19, a first electromagnetic valve 4, a second electromagnetic valve 5, a third electromagnetic valve 7, a fourth electromagnetic valve 11, a fifth electromagnetic valve 13, a drainage circulating pipeline 22 and a dilute water pipeline 23; the first electromagnetic valve 4 and the second electromagnetic valve 5 are sequentially arranged on the water inlet pipeline 20, the third electromagnetic valve 7 is arranged on the water discharge pipeline 21, two ends of the thin water pipeline 23 are connected with the water reservoir 9 and the water inlet pipeline 20 between the first electromagnetic valve 4 and the second electromagnetic valve 5 respectively, the dilution water pump 10 and the fourth electromagnetic valve 11 are arranged on the thin water pipeline 23, one end of the water discharge circulation pipeline 22 is provided with the water discharge circulation cooling spray head 14, the tap water cooling pipe network can be comprehensively sprayed and cooled by arranging the water discharge circulation cooling spray head, the other end of the water discharge circulation pipeline 22 is connected with the water discharge pipeline 21 between the water outlet of the heat pump unit and the third electromagnetic valve 7, and the fifth electromagnetic valve and the water discharge circulation pump are arranged on the water discharge circulation pipeline 22; the water drainage circulating cooling spray head is arranged above the water storage tank.
In the technical scheme, the control system comprises a salinity sensor 16 and a controller 15, the salinity sensor 16 is arranged at an inlet of the heat pump unit 6, and the controller 15 is electrically connected with the first electromagnetic valve 4, the second electromagnetic valve 5, the third electromagnetic valve 7, the fourth electromagnetic valve 11, the fifth electromagnetic valve 13 and the salinity sensor 16 respectively.
Further, the river water source heat pump further comprises a tap water cooling pipe network 17 and a tap water replenishing pipe 18 connected with the tap water cooling pipe network 17, wherein the tap water cooling pipe network 17 is arranged in the reservoir 9, and tap water is replenished into the tap water cooling pipe network 17 through the tap water replenishing pipe 18.
Preferably, the running water cooling pipe network 17 is snakelike, arranges in the middle part of cistern 9, has do benefit to the cooling of cistern normal water through having snakelike the arranging of running water cooling pipe network in the cistern, has improved refrigerated effect and efficiency.
In the example, the float valve 19 is installed at 1/5 of the height of the water reservoir 6, and when the liquid level in the water reservoir reaches 1/5, the float valve floats up, so that the liquid level height of the water reservoir is obtained.
The invention relates to a control method of a river water source heat pump suitable for a seawater jacking action area, which comprises the following steps:
And 2, after the system is started, the salinity sensor 16 monitors and acquires the salinity value at the inlet of the river water source heat pump unit 6 in real time, and when the salinity value is less than or equal to 0.5%, the system enters a normal working condition. The controller 15 controls the first solenoid valve 4, the second solenoid valve 5, and the third solenoid valve 7 to be opened, and controls the fourth solenoid valve 11 and the fifth solenoid valve 12 to be closed. The water taking pump 2 takes water, the water passes through the water suction port 1, is subjected to rotational flow and filtration by the rotational flow desander 3, passes through the first electromagnetic valve 4 and the second electromagnetic valve 5, enters the river water source heat pump unit 6, passes through the drainage pipeline 21, passes through the third electromagnetic valve 7, and enters the drainage port 8 to be discharged.
And 3, after the system is started, monitoring and acquiring the salinity value of the inlet of the river water source heat pump unit 6 in real time, and when the salinity value is 0.5 percent and 2.5 percent, enabling the system to enter a water supplementing-diluting state. Meanwhile, the float valve 19 automatically obtains the liquid level of the reservoir 9, if the liquid level of the reservoir 9 is greater than the set low value of the float valve 19 and is less than or equal to the set high value of the float valve 19, the step 31 is performed, and if the liquid level of the reservoir 9 is less than or equal to the set low value of the float valve 19, the step 32 is performed.
Step 31, the water reservoir 9 does not need to be replenished through the tap water replenishing pipe network 17. At this time, the controller 15 controls the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 7, and the fourth solenoid valve 11 to be opened, and controls the fifth solenoid valve 12 to be closed. The water taking pump 2 takes water, passes through the water suction port 1, is subjected to rotational flow and filtration by the rotational flow desander 3, passes through the first electromagnetic valve 4, is supplemented with water by the dilute water pipeline 23 system and is diluted with seawater at the same time, enters the river water source heat pump unit 6 after the salinity value is less than or equal to 0.5 percent, then passes through the drainage pipeline 21, flows through the third electromagnetic valve 7, and enters the drainage port 8 to be discharged;
and step 32, supplementing water to the water storage tank 9 through a tap water supplementing pipe network 17. At this time, the controller 15 controls the third solenoid valve 7 to be closed, and controls the first solenoid valve 4, the second solenoid valve 5, the fourth solenoid valve 11, and the fifth solenoid valve 12 to be opened. The water taking pump 2 takes water, the water passes through the water suction port 1, is subjected to rotational flow and filtration by the rotational flow desander 3, passes through the first electromagnetic valve 4, is supplemented with water and diluted by the dilute water pipeline 23 system at the same time, enters the river water source heat pump unit 6 after the salinity value is less than or equal to 0.5%, then a part of circulating water passes through the drainage pipeline 21, flows through the third electromagnetic valve 7, enters the drainage port 8 and is discharged, the other part passes through the drainage circulating pipeline 22, flows through the fifth electromagnetic valve 12 and the drainage circulating pump 13, enters the drainage circulating cooling spray head 14, the drainage circulating cooling spray head 14 sprays the tap water cooling pipe network 17 from top to bottom, and enters the reservoir 9 after cooling. Thereby realizing energy saving.
And 4, after the system is started, monitoring in real time to obtain the salinity value of the inlet of the river water source heat pump unit 6, and when the salinity value is more than or equal to 2.5%, enabling the system to enter a self-circulation state. The controller controls the second solenoid valve 5, the fourth solenoid valve 11 and the fifth solenoid valve 12 to be opened, controls the first solenoid valve 4 and the third solenoid valve 7 to be closed, and at the same time, the float valve 19 automatically acquires the liquid level height of the reservoir 9, if the liquid level height of the reservoir 9 is greater than the set low value of the float valve 19 and is less than or equal to the set high value of the float valve 19, the step 41 is entered, and if the liquid level height of the reservoir 9 is less than or equal to the set low value of the float valve, the step 42 is entered.
Step 41, the reservoir 9 does not need to be replenished with water through a tap water replenishing pipe network 17; at this time, after the dilution water pump 10 takes water from the reservoir 9, the water flows through the fourth electromagnetic valve 11, passes through the second electromagnetic valve 5, enters the river water source heat pump unit 6, then passes through the drainage circulation pipeline 22, flows through the fifth electromagnetic valve 12 and the drainage circulation pump 13, enters the drainage circulation cooling spray head 14, and the drainage circulation cooling spray head 14 sprays the tap water cooling pipe network 17 from top to bottom, and enters the reservoir after being cooled.
And step 42, supplementing water to the water storage tank 9 through a tap water supplementing pipe network 17. At this time, after the dilution water pump 10 takes water from the reservoir 9, the water flows through the fourth electromagnetic valve 11, passes through the second electromagnetic valve 5, enters the river water source heat pump unit 6, then passes through the drainage circulation pipeline 22, flows through the fifth electromagnetic valve 12 and the drainage circulation pump 13, enters the drainage circulation cooling spray head 14, and the drainage circulation cooling spray head 14 sprays the tap water cooling pipe network 17 from top to bottom, and enters the reservoir 9 after being cooled. Thereby realizing energy saving.
Preferably, the lower value of the float valve 19 is 20% to 30% of the height of the reservoir; the high value of the float valve 19 is 70 to 80 percent of the height of the water reservoir.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A river water source heat pump suitable for a seawater jacking action area comprises a heat pump unit, wherein a water inlet and a water outlet of the heat pump unit are respectively connected with a water inlet pipeline and a water discharge pipeline; the water reservoir cooling system comprises a water reservoir, a drainage circulating pump, a dilution water pump, a drainage circulating cooling spray head, a ball float valve, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a drainage circulating pipeline and a thin water pipeline, wherein the ball float valve, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the drainage circulating pipeline and the thin water pipeline; the first electromagnetic valve and the second electromagnetic valve are sequentially arranged on the water inlet pipeline, the third electromagnetic valve is arranged on the water outlet pipeline, two ends of the dilute water pipeline are connected with the water inlet pipeline respectively connected between the reservoir and the first electromagnetic valve and the second electromagnetic valve, the dilution water pump and the fourth electromagnetic valve are arranged on the dilute water pipeline, one end of the water outlet circulation pipeline is provided with the water outlet circulation cooling spray head, the other end of the water outlet circulation pipeline is connected with the water outlet pipeline between the water outlet of the heat pump unit and the third electromagnetic valve, and the fifth electromagnetic valve and the water outlet circulation pump are arranged on the water outlet circulation pipeline; the drainage circulating cooling spray head is arranged above the water storage tank; the control system comprises a salinity sensor and a controller, the salinity sensor is arranged at an inlet of the heat pump unit, and the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the salinity sensor respectively.
2. The river water source heat pump according to claim 1, further comprising a tap water cooling pipe network and a tap water replenishing pipe connected to the tap water cooling pipe network, wherein the tap water cooling pipe network is disposed in the reservoir.
3. The river water source heat pump according to claim 2, wherein the water cooling pipe network is serpentine and is arranged in the middle of the reservoir.
4. The river water source heat pump of claim 1, wherein the river water source heat pump further comprises a cyclone sand remover arranged on the water inlet pipeline.
5. The river water source heat pump according to claim 1, wherein the ball float valve is installed at 1/4-1/5 of the height of the reservoir from the top.
6. A control method for realizing the river water source heat pump suitable for the seawater jacking action area according to any one of claims 1 to 5 is characterized by comprising the following steps: a salinity sensor is used for monitoring and acquiring the salinity value at the inlet of the river water source heat pump unit in real time, when the salinity value is less than or equal to 0.5%, the system enters a normal working condition, and seawater is directly discharged from a water discharge pipeline from a water inlet pipeline through the heat pump unit; when the salinity value is more than 0.5% and less than 2.5%, the system enters a water replenishing-diluting condition, and a dilution water pump feeds water in the reservoir into a water inlet pipeline through a dilution water pipeline; when the salinity value is more than or equal to 2.5 percent, the system enters a self-circulation condition, the water in the reservoir enters a water inlet pipeline through a dilute water pipeline by the dilution water pump, and then enters the drainage circulation cooling spray head through the heat pump unit and the self-drainage circulation pipeline.
7. The control method of the river water source heat pump suitable for the seawater jacking action area as claimed in claim 6, wherein the control method of the system entering the normal working condition is specifically as follows: the controller controls the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened and controls the fourth electromagnetic valve and the fifth electromagnetic valve to be closed.
8. The control method of the river water source heat pump suitable for the seawater jacking action area as claimed in claim 6, wherein the control method of the system entering the water replenishing-diluting condition specifically comprises the following steps: the float valve automatically obtains the liquid level height of the water storage tank:
if the height of the liquid level of the water storage tank is greater than the set low value of the floating ball valve and is less than or equal to the set high value of the floating ball valve, the controller controls the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve to be opened and controls the fifth electromagnetic valve to be closed; the water taking pump takes water, the water passes through the water suction port, then passes through the first electromagnetic valve, and meanwhile, the dilute water pipeline system performs water supplementing and seawater diluting, and the water enters the river water source heat pump unit after the salinity value is less than or equal to 0.5%, then passes through the drainage pipeline, flows through the third electromagnetic valve, and enters the drainage port to be discharged;
if the height of the liquid level of the water storage tank is less than or equal to the set low value of the ball float valve, the controller controls the third electromagnetic valve to be closed, and controls the first electromagnetic valve, the second electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve to be opened; the water taking pump takes water, the water passes through the water suction port and then the first electromagnetic valve, meanwhile, the dilute water pipeline system performs water supplementing and seawater diluting, the water enters the river water source heat pump unit after the salinity value is less than or equal to 0.5%, then, a part of circulating water passes through the drainage pipeline and flows through the third electromagnetic valve and enters the drainage outlet to be discharged, the other part of the circulating water passes through the drainage circulating pipeline and flows through the fifth electromagnetic valve and the drainage circulating pump and enters the drainage circulating cooling spray head, the drainage circulating cooling spray head sprays the tap water cooling pipe network from top to bottom, and the sprayed water enters the reservoir after being cooled by the tap water cooling pipe network.
9. The control method of the river water source heat pump suitable for the seawater jacking action area as claimed in claim 6, wherein the control method of the system entering the self-circulation condition is specifically as follows: the controller controls the second electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve to be opened, controls the first electromagnetic valve and the third electromagnetic valve to be closed, and the float valve automatically acquires the liquid level height of the water storage tank:
if the liquid level of the reservoir is higher than the set low value of the ball float valve and is lower than or equal to the set high value of the ball float valve, the dilution water pump flows through the fourth electromagnetic valve after taking water from the reservoir, then flows through the second electromagnetic valve, enters the river water source heat pump unit, then flows through the drainage circulation pipeline, flows through the fifth electromagnetic valve and the drainage circulation pump, enters the drainage circulation cooling spray head, the drainage circulation cooling spray head sprays a tap water cooling pipe network from top to bottom, and the sprayed water enters the reservoir after being cooled by the tap water cooling pipe network,
if the height of the liquid level of the water storage tank is smaller than or equal to the set low value of the ball float valve, the water is taken from the water storage tank by the dilution water pump, flows through the fourth electromagnetic valve, passes through the second electromagnetic valve, enters the river water source heat pump unit, then passes through the drainage circulation pipeline, flows through the fifth electromagnetic valve and the drainage circulation pump, enters the drainage circulation cooling spray head, the drainage circulation cooling spray head sprays a tap water cooling pipe network from top to bottom, and the sprayed water enters the water storage tank after being cooled by the tap water cooling pipe network.
10. The method for controlling a river source heat pump suitable for a seawater jacking region as claimed in claim 8, wherein the low value of the ball float valve is 20% to 30% of the height of the reservoir; the high value of the float valve is 70 to 80 percent of the height of the water reservoir.
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| CN1263234A (en) * | 1999-12-06 | 2000-08-16 | 海阳市富尔达热工程有限公司 | Central air-conditioning system utilizing seawater to make heat exchange |
| CN2438968Y (en) * | 2000-08-18 | 2001-07-11 | 徐生恒 | Liquid cold & heat sources apparatus using rivers, Lakes and seas water as energy |
| CN1442658A (en) * | 2003-04-16 | 2003-09-17 | 烟台低温热源工程技术研究中心 | Heat pump machine set capable of using sea water source |
| CN1945174A (en) * | 2006-10-27 | 2007-04-11 | 王全龄 | Low water temperature high efficiency water source heat pump unit suitable for river, lake and sea |
| CN201662279U (en) * | 2010-01-22 | 2010-12-01 | 湖北风神净化空调设备工程有限公司 | District cooling and heating system with river water source heat pump |
| CN110397115A (en) * | 2019-08-12 | 2019-11-01 | 中建海峡建设发展有限公司 | A kind of water resource heat pump water fetching device and control method suitable for seawater backwater effect area |
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| CN110849037B (en) | 2021-05-14 |
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