CN101949558B - Life hot water heat pump system using waste heat of circulating cooling water - Google Patents
Life hot water heat pump system using waste heat of circulating cooling water Download PDFInfo
- Publication number
- CN101949558B CN101949558B CN 201010282363 CN201010282363A CN101949558B CN 101949558 B CN101949558 B CN 101949558B CN 201010282363 CN201010282363 CN 201010282363 CN 201010282363 A CN201010282363 A CN 201010282363A CN 101949558 B CN101949558 B CN 101949558B
- Authority
- CN
- China
- Prior art keywords
- water
- preheating
- recirculated cooling
- cooling water
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a life hot water heat pump system using waste heat of circulating cooling water, relates to a heat pump system using waste heat of industrial circulating cooling water, and belongs to the technical field of energy. By effectively using a characteristic that the temperature of the circulating cooling water is obviously higher than that of tap water, the life hot water heat pump system aims to obviously reduce the initial cost and operating energy consumption of the system. The life hot water heat pump system comprises a heat pump unit, a heat exchanger, a plurality sets of water pumps, a hot water tank, a control valve, a connecting line thereof and the like; and cold water is preheated by the circulating cooling water through setting a preheating heat exchanger and a water pump and a connecting line thereof, and the preheated water is heated by heat extracted from the circulating cooling water by the heat pump unit, so that the cold water is heated to the required temperature of life hot water by two steps. The life hot water heat pump system is applicable to a heat pump district heating line system recycling waste heat of industrial circulating cooling water.
Description
Technical field
The present invention relates to a kind of domestic hot-water's heat pump that utilizes industrial circulating cooling water (comprising circulating cooling water of power plant) waste heat, belong to energy technology field.
Background technology
Adopting heat pump techniques, develop low-grade, reproducible clean energy resource and be used for the heat supply (heating or domestic hot-water) of building or significant as other low-temperature heat source, is one of effective way of energy-saving and emission-reduction, has huge energy-saving and environmental protection and economic worth.
These low-phase energies comprise: atmosphere, soil, underground water, surface water, municipal sewage and industrial exhaust heat or the like; Their temperature is lower; Generally can not directly utilize between 0～40 ℃ winter, needs to adopt heat pump techniques; Consume a spot of high-order energy, and the utilization ratio that integrates primary energy (coal, oil, natural gas) can reach 100%～133%.
The industrial circulating cooling water amount of China is at least more than 3000 billion cubic meters; Be equivalent to more than 5 times of the Yellow River annual runoff; Water temperature is generally more than 30 ℃, the waste heat that will discharge very huge, be the largest portion of all low-phase energies capable of using; Grade is also higher relatively, is a huge good thermal source of heat pump application.
Because the recirculated cooling water temperature is apparently higher than the temperature of general underground water, sewage, soil etc.; When heating water service domestic hot-water; The recirculated cooling water temperature is also apparently higher than the temperature (about 10 ℃ of winters) of running water; But the domestic hot-water's temperature (40 ℃) after requiring to heat is again apparently higher than the recirculated cooling water temperature, and promptly the recirculated cooling water temperature is between running water temperature and domestic hot-water's temperature, therefore when adopting heat pump techniques; Be different from general heat pump heat distribution system; Be different from simple heat temperature raising again, be fed in the relatively-high temperature water, utilize recirculated cooling water can't running water directly be heated to more than 40 ℃ again because heat pump heat distribution system normally extracts heat from water at low temperature to running water.
Number of patent application is " 200410034541.2 ", and title is " system and method for recirculated cooling water cooling and heat recovery and utilization ", publication number " CN1563830A "; The patent No. " ZL200620147968.8 ", title " recirculated cooling water heating system ", Granted publication number " CN200986259Y "; The patent No. " ZL200620147361.X "; Title " for recirculated cooling water cooling cooling can also be the device of user heating heat supply "; Granted publication number " CN200989624Y "; These patent applications just utilized DESCRIPTION OF THE PRIOR ART heat pump reclaim the basic procedure of the waste heat heat supply in the recirculated cooling water, do not mention the problem of how to supply the domestic hot-water.
Application number is " 200610112862.9 ", and title is " a kind of with the heating system of circulating cooling water of power plant as low order heat source for heat pump ", publication number " CN1916506A "; Application number is " 200610112861.4 "; Title is " a kind of water source heat pump heat supply system that utilizes power plant's condensing waste heat "; Publication number " CN1959220A "; These two patent applications have proposed some basic technical characterictics, but all are to general heating system, do not mention the technical characterictic of supply heat life water aspect.
If adopting above-mentioned heat pump technological process or some basic technical features comes to running water heating the domestic hot-water to be provided; Then do not take into full account the recirculated cooling water temperature apparently higher than this distinguishing feature of running water temperature (about 10 ℃ of winters); To be to utilize heat pump techniques to extract heat from the temperature higher position to be fed to temperature lower (when just beginning to add hot tap-water) during actual motion, this obviously be irrational.
The present invention is directed to and from industrial circulating cooling water, extract heat supply domestic hot-water, propose a kind of systems technology scheme.
Summary of the invention
The purpose of this invention is to provide a kind of domestic hot-water's heat pump that utilizes the recirculated cooling water waste heat; It can effectively utilize the recirculated cooling water temperature apparently higher than this distinguishing feature of running water temperature (about 10 ℃ of winters), thereby significantly reduces system's initial cost and operation energy consumption.
A kind of domestic hot-water's heat pump that utilizes the recirculated cooling water waste heat that the present invention proposes; It comes water pipeline 26 to form by recirculated cooling water water supply main line 1, cooling water return main line 2, recirculated cooling water heat pump side water pump 3, recirculated cooling water heat pump side water supply branch line 4, recirculated cooling water heat pump side backwater branch line 5, source pump 6, hot water heat cycles water pump 7, hot water heating water supply line 8, hot water heating return piping 9, boiler 1, boiler 2 11, bypass line 12, hot water supply-water pump 13, the terminal water supply line 14 of hot water, the terminal return piping 15 of hot water, terminal hot water user 16, recirculated cooling water preheating side water pump 17, recirculated cooling water preheating side water supply branch line 18, recirculated cooling water preheating side backwater branch line 19, preheating heat exchanger 20, running water preheating water pump 21, running water preheating water supply line 22, running water preheating water-supply line 23, running water preheating water supply control valve 24, cold water storage cistern 25, running water, and recirculated cooling water heat pump side water supply branch line 4 joins with recirculated cooling water water supply main line 1 and source pump 6; Recirculated cooling water heat pump side water pump 3 is connected on the recirculated cooling water heat pump side water supply branch line 4; Recirculated cooling water heat pump side backwater branch line 5 links to each other with source pump 6 with cooling water return main line 2; Hot water heating water supply line 8 links to each other with boiler 1 with source pump 6; Hot water heat cycles water pump 7 is connected on the hot water heating water supply line 8; Hot water heating return piping 9 links to each other with boiler 2 11 with source pump 6; Bypass line 12 connects boiler 1 and boiler 2 11; The terminal water supply line 14 of hot water links to each other with terminal hot water user 16 with boiler 2 11; The terminal return piping 15 of hot water links to each other with terminal hot water user 16 with boiler 1; Recirculated cooling water preheating side water supply branch line 18 links to each other with preheating heat exchanger 20 with recirculated cooling water water supply main line 1; Recirculated cooling water preheating side water pump 17 is connected on the recirculated cooling water preheating side water supply branch line 18; Recirculated cooling water preheating side backwater branch line 19 links to each other with preheating heat exchanger 20 with cooling water return main line 2; Running water preheating water supply line 22 links to each other with cold water storage cistern 25 with preheating heat exchanger 20; Running water preheating water pump 21 is connected on the running water preheating water supply line 22; Running water preheating water-supply line 23 links to each other with boiler 1 with preheating heat exchanger 20; Running water preheating water supply control valve 24 is arranged on the running water preheating water-supply line 23; Running water comes water pipeline 26 and cold water storage cistern 25 to join.
Operation logic is: recirculated cooling water preheating side water pump 17 extracts recirculated cooling water through recirculated cooling water heat pump side water supply branch line 4 from recirculated cooling water water supply main line 1; The water pump of running water preheating simultaneously 21 extracts cold water through running water preheating water supply line 22 from cold water storage cistern 25; Recirculated cooling water carries out preheating through 20 pairs of cold water of preheating heat exchanger; The recirculated cooling water that has changed after the heat returns cooling water return main line 2 through recirculated cooling water heat pump side backwater branch line 5, is got into boilers 1 by the cold water after the preheating through running water preheating water-supply line 23; Running water preheating water supply control valve 24 is implemented interlock with recirculated cooling water preheating side water pump 17 and running water preheating water pump 21, united opening when boiler one 10 lacks of water, and interlock was closed when the water yield was enough; Running water comes 26 pairs of cold water storage cisterns of water pipeline 25 to carry out moisturizing; Recirculated cooling water heat pump side water pump 3 extracts recirculated cooling water through recirculated cooling water heat pump side water supply branch line 4 and sends into source pump 6 from recirculated cooling water water supply main line 1, recirculated cooling water returns cooling water return main line 2 through recirculated cooling water heat pump side backwater branch line 5 behind source pump 6 heat-obtainings; Hot water heat cycles water pump 7 draws water from boiler 1 through hot water heating water supply line 8 and sends into source pump 6, and this water gets into boiler 2 11 through hot water heating return piping 9 after source pump 6 heats up; Hot water supply-water pump 13 extracts hot water from boiler 2 11; Through the terminal water supply line 14 of hot water hot water is sent to terminal hot water user 16; For guaranteeing that terminal water supply line 14 of hot water and terminal hot water user 16 interior water are always available hot water, the terminal return piping 15 of hot water returns a small amount of hot water to boiler 1.
This system has following characteristics and beneficial effect thereof:
(1) significantly reduces initial cost and can reach 40%.Domestic hot-water's temperature can be about 50 ℃, and when the temperature of running water is 10 ℃, the temperature rise of water is 40 ℃; If the temperature of recirculated cooling water is 35 ℃, preheating heat exchanger can be elevated to 30 ℃ with running water, and temperature rise is 20 ℃; Account for 50% of overall temperature rise; The coupling of the capacity of source pump and water pump etc. can reduce 50% at this moment, and consideration will be provided with preheating heat exchanger and water pump and pipeline coupling, and the initial cost of this system can save 40%.
(2) save operating cost more than 45%.Because amounts of preheat can reach 50%, therefore only need provide 50% heat get final product, the wasted work of consideration recirculated cooling water preheating side water pump and running water preheating water pump 5% can be saved operating cost 45% at least.
Aforementioned CN1563830A, CN200986259Y, CN200989624Y, CN1916506A and CN1959220A etc. and data of literatures thereof all are not mentioned to above-mentioned technical characterictic.
Description of drawings
Fig. 1 is the structural representation of system of the present invention
Fig. 2 is the sketch map of the specific embodiment two
Embodiment
The specific embodiment one (referring to Fig. 1); The system of this embodiment it come water pipeline 26 to form by recirculated cooling water water supply main line 1, cooling water return main line 2, recirculated cooling water heat pump side water pump 3, recirculated cooling water heat pump side water supply branch line 4, recirculated cooling water heat pump side backwater branch line 5, source pump 6, hot water heat cycles water pump 7, hot water heating water supply line 8, hot water heating return piping 9, boiler 1, boiler 2 11, bypass line 12, hot water supply-water pump 13, the terminal water supply line 14 of hot water, the terminal return piping 15 of hot water, terminal hot water user 16, recirculated cooling water preheating side water pump 17, recirculated cooling water preheating side water supply branch line 18, recirculated cooling water preheating side backwater branch line 19, preheating heat exchanger 20, running water preheating water pump 21, running water preheating water supply line 22, running water preheating water-supply line 23, running water preheating water supply control valve 24, cold water storage cistern 25, running water, and recirculated cooling water heat pump side water supply branch line 4 joins with recirculated cooling water water supply main line 1 and source pump 6; Recirculated cooling water heat pump side water pump 3 is connected on the recirculated cooling water heat pump side water supply branch line 4; Recirculated cooling water heat pump side backwater branch line 5 links to each other with source pump 6 with cooling water return main line 2; Hot water heating water supply line 8 links to each other with boiler 1 with source pump 6; Hot water heat cycles water pump 7 is connected on the hot water heating water supply line 8; Hot water heating return piping 9 links to each other with boiler 2 11 with source pump 6; Bypass line 12 connects boiler 1 and boiler 2 11; The terminal water supply line 14 of hot water links to each other with terminal hot water user 16 with boiler 2 11; The terminal return piping 15 of hot water links to each other with terminal hot water user 16 with boiler 1; Recirculated cooling water preheating side water supply branch line 18 links to each other with preheating heat exchanger 20 with recirculated cooling water water supply main line 1; Recirculated cooling water preheating side water pump 17 is connected on the recirculated cooling water preheating side water supply branch line 18; Recirculated cooling water preheating side backwater branch line 19 links to each other with preheating heat exchanger 20 with cooling water return main line 2; Running water preheating water supply line 22 links to each other with cold water storage cistern 25 with preheating heat exchanger 20; Running water preheating water pump 21 is connected on the running water preheating water supply line 22; Running water preheating water-supply line 23 links to each other with boiler 1 with preheating heat exchanger 20; Running water preheating water supply control valve 24 is arranged on the running water preheating water-supply line 23; Running water comes water pipeline 26 and cold water storage cistern 25 to join.
The specific embodiment two (referring to Fig. 2); What this embodiment and the specific embodiment one were different is between recirculated cooling water heat pump side water supply branch line 4, recirculated cooling water heat pump side backwater branch line 5 and source pump 6, to increase Intermediate Heat Exchanger 27, intermediary's water pump 28, intermediary's water supply line 29 and intermediary's return piping 30; Recirculated cooling water heat pump side water supply branch line 4 joins with Intermediate Heat Exchanger 27 respectively with recirculated cooling water heat pump side backwater branch line 5; Intermediary's water supply line 29 joins with Intermediate Heat Exchanger 27 and source pump 6 respectively with intermediary's return piping 30; Intermediary's water pump 28 is connected on intermediary's water supply line 29, and other connected mode is identical with the specific embodiment one.Operation logic is for guaranteeing that recirculated cooling water is not contaminated or reveal, guarantee not influence explained hereafter that recirculated cooling water is isolated through Intermediate Heat Exchanger and heat pump, and other operation logic is identical with the specific embodiment one.
Claims (2)
1. domestic hot-water's heat pump that utilizes the recirculated cooling water waste heat; It is characterized in that it comes water pipeline (26) to form by supply water main line (1), cooling water return main line (2), recirculated cooling water heat pump side water pump (3), recirculated cooling water heat pump side water supply branch line (4), recirculated cooling water heat pump side backwater branch line (5), source pump (6), hot water heat cycles water pump (7), hot water heating water supply line (8), hot water heating return piping (9), boiler one (10), boiler two (11), bypass line (12), hot water supply-water pump (13), the terminal water supply line (14) of hot water, the terminal return piping (15) of hot water, terminal hot water user (16), recirculated cooling water preheating side water pump (17), recirculated cooling water preheating side water supply branch line (18), recirculated cooling water preheating side backwater branch line (19), preheating heat exchanger (20), running water preheating water pump (21), running water preheating water supply line (22), running water preheating water-supply line (23), running water preheating water supply control valve (24), cold water storage cistern (25), running water of recirculated cooling water, recirculated cooling water heat pump side water supply branch line (4) joins with recirculated cooling water water supply main line (1) and source pump (6); Recirculated cooling water heat pump side water pump (3) is connected on the recirculated cooling water heat pump side water supply branch line (4); Recirculated cooling water heat pump side backwater branch line (5) links to each other with source pump (6) with cooling water return main line (2); Hot water heating water supply line (8) links to each other with boiler one (10) with source pump (6); Hot water heat cycles water pump (7) is connected on the hot water heating water supply line (8); Hot water heating return piping (9) links to each other with boiler two (11) with source pump (6); Bypass line (12) connects boiler one (10) and boiler two (11); The terminal water supply line of hot water (14) links to each other with terminal hot water user (16) with boiler two (11); The terminal return piping of hot water (15) links to each other with terminal hot water user (16) with boiler one (10); Recirculated cooling water preheating side water supply branch line (18) links to each other with preheating heat exchanger (20) with recirculated cooling water water supply main line (1); Recirculated cooling water preheating side water pump (17) is connected on the recirculated cooling water preheating side water supply branch line (18); Recirculated cooling water preheating side backwater branch line (19) links to each other with preheating heat exchanger (20) with cooling water return main line (2); Running water preheating water supply line (22) links to each other with cold water storage cistern (25) with preheating heat exchanger (20); Running water preheating water pump (21) is connected on the running water preheating water supply line (22); Running water preheating water-supply line (23) links to each other with boiler one (10) with preheating heat exchanger (20); Running water preheating water supply control valve (24) is arranged on the running water preheating water-supply line (23); Running water comes water pipeline (26) and cold water storage cistern (25) to join.
2. a kind of domestic hot-water's heat pump that utilizes the recirculated cooling water waste heat according to claim 1; It is characterized in that between recirculated cooling water heat pump side water supply branch line (4), recirculated cooling water heat pump side backwater branch line (5) and source pump (6), increasing Intermediate Heat Exchanger (27), intermediary's water pump (28), intermediary's water supply line (29) and intermediary's return piping (30); Recirculated cooling water heat pump side water supply branch line (4) and recirculated cooling water heat pump side backwater branch line (5) join with Intermediate Heat Exchanger (27) respectively; Intermediary's water supply line (29) and intermediary's return piping (30) join with Intermediate Heat Exchanger (27) and source pump (6) respectively, and intermediary's water pump (28) is connected on intermediary's water supply line (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010282363 CN101949558B (en) | 2010-09-08 | 2010-09-08 | Life hot water heat pump system using waste heat of circulating cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010282363 CN101949558B (en) | 2010-09-08 | 2010-09-08 | Life hot water heat pump system using waste heat of circulating cooling water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949558A CN101949558A (en) | 2011-01-19 |
| CN101949558B true CN101949558B (en) | 2012-08-29 |
Family
ID=43453142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010282363 Active CN101949558B (en) | 2010-09-08 | 2010-09-08 | Life hot water heat pump system using waste heat of circulating cooling water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949558B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028584B (en) * | 2012-11-12 | 2014-11-05 | 河北橡一医药科技股份有限公司 | Hot water comprehensive utilization system in rubber plug production process |
| CN108518782A (en) * | 2018-06-08 | 2018-09-11 | 银川雷升太阳能有限公司 | A kind of cooling/warming system of solar energy integration air source heat pump |
| CN112197336A (en) * | 2020-11-16 | 2021-01-08 | 上海有隆工程勘测技术有限公司 | Pipeline heat storage type instant heating type high-temperature air source heat pump heating water system |
| CN113739463B (en) * | 2021-08-19 | 2022-09-27 | 珠海格力电器股份有限公司 | Refrigerating unit control method and device and refrigeration equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2885406B1 (en) * | 2005-05-04 | 2007-12-14 | Armines Ass Loi De 1901 | HEAT PUMP FOR HEATING SANITARY HOT WATER USING THE RESIDUAL HEAT OF WASTEWATER. |
| CN100432563C (en) * | 2005-09-22 | 2008-11-12 | 上海卡诺节能环境工程有限公司 | Combined central air conditioning condensation heat recovery utilizating system and method |
| CN100429462C (en) * | 2005-10-27 | 2008-10-29 | 王启杰 | Condensation heat recovery apparatus and method for downfeed type hot water supply circulation system |
| JP2008116065A (en) * | 2006-10-31 | 2008-05-22 | Daikin Ind Ltd | Hot water storage type water heater |
| JP5433212B2 (en) * | 2008-11-13 | 2014-03-05 | 株式会社日本サーモエナー | Hot water system |
| CN101520208B (en) * | 2009-04-13 | 2010-07-14 | 清华大学 | Waste heat recovery type hot-water boiler device in bathroom |
-
2010
- 2010-09-08 CN CN 201010282363 patent/CN101949558B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101949558A (en) | 2011-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108105831A (en) | A kind of glass factory's low temperature exhaust heat recycling system | |
| CN106705185A (en) | Energy-saving heat supply system with function of reducing temperature of heat supply return water | |
| CN201569208U (en) | Residual heat reclamation device in petroleum industry | |
| CN204006255U (en) | A kind of waste heat recovery central heating system | |
| CN201062838Y (en) | Central heating system for thermoelectric plant circulating water | |
| CN105972681B (en) | Water resource heat pump-steam turbine combining heating system complementary with heat supply network | |
| CN101718480A (en) | Heat pump unit for recycling afterheat of wastewater | |
| CN203249231U (en) | System using water drainage waste heat of heating network heater to heat raw water | |
| CN105444247B (en) | Regional energy supply system based on comprehensive recycling of various low-grade waste heat | |
| CN101949558B (en) | Life hot water heat pump system using waste heat of circulating cooling water | |
| CN102721222B (en) | System for recovering waste heat of process cooling water | |
| CN201116801Y (en) | Circulating cooling water heat energy step reclaiming utilizing system | |
| CN102563894B (en) | Sanitary wastewater surplus heat utilization system | |
| CN202648227U (en) | Waste heat recovery system for process cooling water | |
| CN103982933B (en) | The large temperature difference heat-exchange unit of injection-compression combined formula | |
| CN201582904U (en) | Distribution-type water source heat pump and central heating co-supply system | |
| CN102721221A (en) | Production process cooling water waste heat recovery system | |
| CN100406807C (en) | System for central heating by applying heat pump technical principle and related equipment thereof | |
| CN101865488A (en) | Exhaust residual heat utilizing method for large-capacity heat and power cogeneration concentrated heat supply generator set | |
| CN204227758U (en) | Field joint stations sewage remaining energy utilizes system | |
| CN201412120Y (en) | Solar power warming system for oil field wellhead | |
| CN203907724U (en) | System for using steam condensate to preheat domestic hot water | |
| CN204313512U (en) | The new system of field joint stations heating crude oil | |
| CN101943434B (en) | Direct-coupled heat pump system of two-stage pump using excess heat of circulating cooling water | |
| CN206989298U (en) | A kind of double-source heat pump heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |