CN114526559B - High-efficient dehydration of heat source tower maintains system - Google Patents
High-efficient dehydration of heat source tower maintains system Download PDFInfo
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- CN114526559B CN114526559B CN202210177459.3A CN202210177459A CN114526559B CN 114526559 B CN114526559 B CN 114526559B CN 202210177459 A CN202210177459 A CN 202210177459A CN 114526559 B CN114526559 B CN 114526559B
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- secondary refrigerant
- refrigerant
- heat
- generator
- circulation system
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- 230000018044 dehydration Effects 0.000 title claims abstract description 11
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 11
- 239000003507 refrigerant Substances 0.000 claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000005494 condensation Effects 0.000 claims abstract description 24
- 238000009833 condensation Methods 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 17
- 238000001704 evaporation Methods 0.000 claims abstract description 17
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 238000005260 corrosion Methods 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 10
- 238000012423 maintenance Methods 0.000 claims 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/005—Compression machines, plants or systems with non-reversible cycle of the single unit type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
-
- 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
-
- 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
- F25B41/40—Fluid line arrangements
-
- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- 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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the technical field of heat source towers, and particularly relates to a high-efficiency dehydration maintaining system of a heat source tower, which comprises a refrigerating medium evaporation circulating system, a refrigerating medium circulating system and a refrigerating medium condensation circulating system; the secondary refrigerant evaporation circulation system comprises a secondary refrigerant generator, a combined injection evacuating device and a secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant evaporation circulation system is connected with a secondary refrigerant storage container in the heat source tower water system through a secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant heat recovery and heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and performs heat exchange between the high-temperature secondary refrigerant discharged from the closed system and the low-concentration secondary refrigerant entering the closed system. The invention has simple structure and small occupied space, maintains the stable concentration of the secondary refrigerant in the heat source tower, has high energy efficiency and low cost, ensures the safe and stable supply of heat for users by the system, and ensures the safe and stable supply of heat for users by the system in a low-temperature environment.
Description
Technical Field
The invention belongs to the technical field of heat source towers, and particularly relates to a high-efficiency dehydration maintaining system of a heat source tower.
Background
As heat source tower systems are widely used in winter heating projects, maintaining the concentration of coolant in the heat source tower is an important technical barrier to the heat source tower project as well as an energy efficient and cost critical technology. The existing concentration scheme for maintaining the secondary refrigerant in the heat source tower is as follows: the container for adding the secondary refrigerant is added, when the concentration of the secondary refrigerant is reduced, the concentration of the secondary refrigerant is increased to maintain the concentration of the secondary refrigerant, and the first scheme has the defects of large occupied space and increased cost; the second scheme has the defects of low energy efficiency and high cost because of electric heating and high-temperature evaporation dehydration in the secondary refrigerant container.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a high-efficiency dehydration maintaining system of a heat source tower, which comprises a refrigerating medium evaporation circulating system, a refrigerating medium circulating system and a refrigerating medium condensation circulating system; the secondary refrigerant evaporation circulation system comprises a secondary refrigerant generator, a combined injection evacuating device and a secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant evaporation circulation system is connected with a secondary refrigerant storage container in the heat source tower water system through a secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant heat recovery and heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and performs heat exchange between the high-temperature secondary refrigerant discharged from the closed system and the low-concentration secondary refrigerant entering the closed system.
The refrigerant circulation system comprises an evaporator, a secondary refrigerant generator, a compressor and a refrigerant throttling device thereof; the high-temperature refrigerant in the refrigerant circulation system is heated and evaporated in the cold carrier in the shell side by the cold carrier generator, and heat exchange is carried out between the evaporator and the cold carrier condensation circulation system to form a closed refrigerant circulation system; the refrigerating medium condensation circulation system comprises a condenser tube, a water pump and an evaporator, and is connected with the heat source tower chilled water system.
The shell side of the secondary refrigerant generator, the shell side of the condenser and the combined injection and evacuation system are connected to form a secondary refrigerant closed system, and the combined injection and evacuation system injects and evacuates a secondary refrigerant space in the closed system into negative pressure.
The secondary refrigerant heat recovery heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and is used for removing high-temperature secondary refrigerant in the closed system and carrying out heat exchange on the secondary refrigerant with low concentration entering the closed system.
The working flow of the invention is as follows:
A. the secondary refrigerant evaporation circulation system starts to operate:
(1) The combined injection evacuating device operates, and the shell side of the generator, the shell side of the condenser and the combined injection evacuating system are connected to form a closed system for evacuating the secondary refrigerant;
(2) And the liquid inlet electromagnetic valve is powered on, the secondary refrigerant enters the shell side of the generator, after the secondary refrigerant reaches the liquid level height of the generator, the liquid inlet electromagnetic valve is powered off and closed, and the vacuum detection gauge on the shell side of the generator detects that the vacuum degree reaches the set requirement, so that the combined injection evacuating device continuously operates.
B. The refrigerant circulation system and the secondary refrigerant condensation circulation system operate:
(1) The compressor of the refrigerant circulation system is electrified to run, a bypass electromagnetic valve in the refrigerant condensation circulation system is electrified, the high-temperature refrigerant on the tube side of the generator exchanges heat with the refrigerant on the shell side of the generator, and water in the refrigerant is evaporated at low temperature under negative pressure to form low-temperature steam;
(2) The water evaporated flows from the generator shell side to the condenser shell tube under pressure;
(3) The chilled water of the heat source tower flows to the tube side of the condenser through an electric three-way valve in the secondary refrigerant condensation circulating system, exchanges heat with the water vapor of the shell side, and the water vapor is condensed into water and stored at the bottom of the condenser;
(4) After the condenser low-temperature sensor Tld detects that the temperature of the condensed water reaches the set temperature, a bypass electromagnetic valve in a secondary refrigerant condensation circulation system is closed, and an electric three-way valve is electrified to open the valve;
(5) The concentration of the shell side secondary refrigerant of the generator rises, the liquid outlet electromagnetic valve is electrified and opened, the high concentration secondary refrigerant is discharged, the liquid level is lowered, the liquid inlet electromagnetic valve is electrified and opened, and the low concentration secondary refrigerant is supplemented.
The beneficial effects are that:
the invention has simple structure and small occupied space, maintains the stable concentration of the secondary refrigerant in the heat source tower, has high energy efficiency and low cost, ensures the safe and stable supply of heat for users by the system, and ensures the safe and stable supply of heat for users by the system in a low-temperature environment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
as shown in the figure: a secondary refrigerant evaporation circulation system 1, a refrigerant circulation system 2 and a secondary refrigerant condensation circulation system 3.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
A high-efficiency dehydration maintaining system of a heat source tower comprises a refrigerating medium evaporation circulating system 1, a refrigerating medium circulating system 2 and a refrigerating medium condensation circulating system 3; the secondary refrigerant evaporation circulation system 1 comprises a secondary refrigerant generator, a combined injection evacuating device and a secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant evaporation circulation system 1 is connected with a secondary refrigerant storage container in the heat source tower water system through a secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant heat recovery and heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and performs heat exchange between the high-temperature secondary refrigerant discharged from the closed system and the low-concentration secondary refrigerant entering the closed system.
The refrigerant circulation system 2 comprises an evaporator, a secondary refrigerant generator, a compressor and a refrigerant throttling device thereof; the high-temperature refrigerant in the refrigerant circulation system 2 is heated and evaporated in the shell side of the cold carrier through the cold carrier in the cold carrier generator, and heat exchange is carried out between the evaporator and the cold carrier condensation circulation system 3 to form a closed refrigerant circulation system; the refrigerating medium condensation circulation system 3 comprises a condenser tube, a water pump and an evaporator, and is connected with the heat source tower chilled water system.
The shell side of the secondary refrigerant generator, the shell side of the condenser and the combined injection and evacuation system are connected to form a secondary refrigerant closed system, and the combined injection and evacuation system injects and evacuates a secondary refrigerant space in the closed system into negative pressure.
The secondary refrigerant heat recovery heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and is used for removing high-temperature secondary refrigerant in the closed system and carrying out heat exchange on the secondary refrigerant with low concentration entering the closed system.
The working flow of the invention is as follows:
A. the coolant evaporation circulation system 1 starts to operate:
(1) The combined injection evacuating device operates, and the shell side of the generator, the shell side of the condenser and the combined injection evacuating system are connected to form a closed system for evacuating the secondary refrigerant;
(2) And the liquid inlet electromagnetic valve is powered on, the secondary refrigerant enters the shell side of the generator, after the secondary refrigerant reaches the liquid level height of the generator, the liquid inlet electromagnetic valve is powered off and closed, and the vacuum detection gauge on the shell side of the generator detects that the vacuum degree reaches the set requirement, so that the combined injection evacuating device continuously operates.
B. The refrigerant circulation system 2 and the secondary refrigerant condensation circulation system 3 operate:
(1) The compressor of the refrigerant circulation system 2 is electrified to run, a bypass electromagnetic valve in the refrigerant condensation circulation system 3 is electrified, the high-temperature refrigerant on the tube side of the generator exchanges heat with the refrigerant on the shell side of the generator, and water in the refrigerant is evaporated at low temperature under negative pressure to form low-temperature steam;
(2) The water evaporated flows from the generator shell side to the condenser shell tube under pressure;
(3) The chilled water of the heat source tower flows to the tube side of the condenser through an electric three-way valve in the secondary refrigerant condensation circulating system 3, exchanges heat with the water vapor of the shell side, and the water vapor is condensed into water and stored at the bottom of the condenser;
(4) After the condenser low-temperature sensor Tld detects that the temperature of the condensed water reaches the set temperature, a bypass electromagnetic valve in the secondary refrigerant condensation circulation system 3 is closed, and an electric three-way valve is electrified to open the valve;
(5) The concentration of the shell side secondary refrigerant of the generator rises, the liquid outlet electromagnetic valve is electrified and opened, the high concentration secondary refrigerant is discharged, the liquid level is lowered, the liquid inlet electromagnetic valve is electrified and opened, and the low concentration secondary refrigerant is supplemented.
When an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element, or be directly connected to the other element or be indirectly connected to the other element.
The terms of the directions such as left, right, up, down, etc. in this embodiment are merely relative concepts or references to the normal use state of the product, and should not be construed as limiting.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. A high-efficient dehydration maintenance system of heat source tower, its characterized in that: the system comprises a secondary refrigerant evaporation circulation system, a refrigerant circulation system and a secondary refrigerant condensation circulation system, wherein the secondary refrigerant evaporation circulation system comprises a secondary refrigerant generator, a combined injection evacuating device and a secondary refrigerant heat recovery and heat exchange circulation device, and the secondary refrigerant evaporation circulation system is connected with a secondary refrigerant storage container in a heat source tower water system through the secondary refrigerant heat recovery and heat exchange circulation device; the secondary refrigerant heat recovery and heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and performs heat exchange between the high-temperature secondary refrigerant discharged from the closed system and the low-concentration secondary refrigerant entering the closed system;
the refrigerating agent circulation system comprises an evaporator, a refrigerating agent generator, a compressor and a refrigerant throttling device thereof, wherein the high-temperature refrigerating agent in the refrigerating agent circulation system is arranged in the refrigerating agent generator, the refrigerating agent in a shell side is heated and evaporated through the refrigerating agent generator, and heat exchange is carried out between the evaporator and a refrigerating agent condensation circulation system, the refrigerating agent condensation circulation system comprises a condenser tube side, a water pump and the evaporator, and the refrigerating agent condensation circulation system is connected with a refrigerating water system of a heat source tower;
the shell side of the secondary refrigerant generator, the shell side of the condenser and the combined type injection and evacuation system are connected to form a secondary refrigerant closed system, and the secondary refrigerant in the closed system is injected and evacuated to negative pressure by the combined type injection and evacuation system.
2. The heat source tower efficient dehydration maintenance system according to claim 1, wherein: the secondary refrigerant heat recovery and heat exchange circulating device comprises an anti-corrosion heat exchanger, a liquid inlet and outlet electromagnetic valve and a concentrated solution water pump, and is used for removing high-temperature secondary refrigerant from the closed system and carrying out heat exchange on the secondary refrigerant with low concentration entering the closed system.
3. The heat source tower efficient dehydration maintenance system according to claim 1, wherein: the working flow of the efficient dehydration maintaining system of the heat source tower is as follows:
A. the secondary refrigerant evaporation circulation system starts to operate:
(1) The combined injection evacuating device operates, and the shell side of the generator, the shell side of the condenser and the combined injection evacuating system are connected to form a closed system for evacuating the secondary refrigerant;
(2) The liquid inlet electromagnetic valve is powered on and opened, the secondary refrigerant enters the shell side of the generator, after the secondary refrigerant reaches the liquid level height of the generator, the liquid inlet electromagnetic valve is powered off and closed, the vacuum detection meter on the shell side of the generator detects that the vacuum degree reaches the set requirement, and the combined injection evacuating device continuously operates;
B. the refrigerant circulation system and the secondary refrigerant condensation circulation system operate:
(1) The compressor of the refrigerant circulation system is electrified to run, a bypass electromagnetic valve in the refrigerant condensation circulation system is electrified, the high-temperature refrigerant on the tube side of the generator exchanges heat with the refrigerant on the shell side of the generator, and water in the refrigerant is evaporated at low temperature under negative pressure to form low-temperature steam;
(2) The water evaporated flows from the generator shell side to the condenser shell tube under pressure;
(3) The chilled water of the heat source tower flows to the tube side of the condenser through an electric three-way valve in the secondary refrigerant condensation circulating system, exchanges heat with the water vapor of the shell side, and the water vapor is condensed into water and stored at the bottom of the condenser;
(4) After the condenser low-temperature sensor Tld detects that the temperature of the condensed water reaches the set temperature, a bypass electromagnetic valve in a secondary refrigerant condensation circulation system is closed, and an electric three-way valve is electrified to open the valve;
(5) The concentration of the shell side secondary refrigerant of the generator rises, the liquid outlet electromagnetic valve is electrified and opened, the high concentration secondary refrigerant is discharged, the liquid level is lowered, the liquid inlet electromagnetic valve is electrified and opened, and the low concentration secondary refrigerant is supplemented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210177459.3A CN114526559B (en) | 2022-02-25 | 2022-02-25 | High-efficient dehydration of heat source tower maintains system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210177459.3A CN114526559B (en) | 2022-02-25 | 2022-02-25 | High-efficient dehydration of heat source tower maintains system |
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| Publication Number | Publication Date |
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| CN114526559A CN114526559A (en) | 2022-05-24 |
| CN114526559B true CN114526559B (en) | 2024-01-30 |
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| CN202210177459.3A Active CN114526559B (en) | 2022-02-25 | 2022-02-25 | High-efficient dehydration of heat source tower maintains system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438614A (en) * | 2013-09-02 | 2013-12-11 | 东南大学 | Solution regenerating device achieving controllable condensation based on vacuum boiling |
| CN103807946A (en) * | 2014-01-26 | 2014-05-21 | 浙江理工大学 | Distillation regeneration device of heat source tower antifreeze solution |
| CN111870975A (en) * | 2020-06-11 | 2020-11-03 | 岳玉亮 | Solution concentration device for heat source tower system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102161125B1 (en) * | 2019-02-28 | 2020-09-29 | 주식회사 제이앤지 | Intelligent dual heat exchanging type heat pump system |
| IT202000003019A1 (en) * | 2020-02-14 | 2021-08-14 | Epta Spa | STEAM COMPRESSION REFRIGERATION SYSTEM AND MANAGEMENT METHOD OF SUCH A SYSTEM |
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2022
- 2022-02-25 CN CN202210177459.3A patent/CN114526559B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438614A (en) * | 2013-09-02 | 2013-12-11 | 东南大学 | Solution regenerating device achieving controllable condensation based on vacuum boiling |
| CN103807946A (en) * | 2014-01-26 | 2014-05-21 | 浙江理工大学 | Distillation regeneration device of heat source tower antifreeze solution |
| CN111870975A (en) * | 2020-06-11 | 2020-11-03 | 岳玉亮 | Solution concentration device for heat source tower system |
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| CN114526559A (en) | 2022-05-24 |
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