CN201368551Y - Air conditioner for combining ground source heat pump and ice-storage system - Google Patents
Air conditioner for combining ground source heat pump and ice-storage system Download PDFInfo
- Publication number
- CN201368551Y CN201368551Y CN 200920067735 CN200920067735U CN201368551Y CN 201368551 Y CN201368551 Y CN 201368551Y CN 200920067735 CN200920067735 CN 200920067735 CN 200920067735 U CN200920067735 U CN 200920067735U CN 201368551 Y CN201368551 Y CN 201368551Y
- Authority
- CN
- China
- Prior art keywords
- ice
- heat pump
- source heat
- cold
- air conditioner
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model relates to the central air conditioning field, in particular to an air conditioner for combining a ground source heat pump and an ice-storage system. Through reasonable connection of structure compositions, the utility model enables secondary refrigerants to operate in an independent circulation circuit, thereby preventing the secondary refrigerants from corroding the pipeline at the tail end, and at the same time, when the air conditioner is converted into the heat supplying condition from the cold supplying condition, the secondary refrigerants do not need to conduct the other treatment, thereby reducing the operation during operating processes; an electric boiler and a cooling tower are additionally arranged in the air conditioner to balance the load of a buried pipe and reduce the influence on the underground temperature field due to hot and cold imbalance, so that the energy efficiency ratio of a geothermal heat exchanger is enhanced, the service life of the buried pipe is prolonged, the initial investment of the system can be reduced effectively, the operating efficiency of the air conditioner is improved through the reasonably arranged operational mode of the programmable logic controller (PLC) and the reasonable distribution of the ice storage capacity, and the operating efficiency of the air conditioner is improved.
Description
Technical field
The utility model relates to the central air-conditioning field, particularly relates to the aircondition of a kind of earth source heat pump in conjunction with the ice cold-storage.
Background technology
Ground source heat pump technology be a kind of utilize underground geothermal using resource (also claim ground can, comprise underground water, surface water or soil etc.) but not only heat supply but also the energy-efficient air-conditioning technical that can freeze.Earth source heat pump realizes that by input a spot of high-grade energy (as electric energy) low-phase energy shifts to the high-order energy.Because the fluctuation of annual ground temperature is little, cool in summer and warm in winter, its seasonal performance coefficient has the characteristic of constant temperature heat source heat pump, and seasonal average behavior system is higher.Ground can be distinguished in the winter time as the thermal source of heat pump heating and the low-temperature receiver of summer air-conditioning, promptly in the winter time, the heat in the ground energy taken out, and after the raising temperature, the supply indoor heating; Summer, indoor heat is taken out, be discharged in the ground energy and go.
Ice-storage air-conditioning is to utilize the cheap electric power of electrical network low-load period to freeze by refrigeration machine, the form of cold with latent heat is stored in the ice, in the peak times of power consumption of electricity price costliness, ice-out is discharged the requirement that cold satisfies the air-conditioning refrigeration duty, ice-storage air-conditioning on the one hand can balancing power network load, can therefore have good social benefit and economic benefit for the user saves the operation of air conditioner expense on the other hand.
But rely on fully in the geothermal heat pump air-conditioning system at present and bury the ground heat exchanger and dispel the heat, not only required underground heat exchanger is more, cause system's initial cost higher, and the cooling and heating load imbalance in winter in summer causes the Energy Efficiency Ratio of buried tube heat exchanger doughtily to reduce, and also there is considerable influence in operation stability and the life-span for earth-source hot-pump system simultaneously.And ice-chilling air conditioning system is through cooling tower heat to be drained in the atmosphere mostly, has increased the tropical island effect of city regional area.
Summary of the invention
The purpose of this utility model is at above-mentioned the deficiencies in the prior art part, the aircondition of a kind of earth source heat pump in conjunction with the ice cold-storage is provided, this device reasonable connection by each structure is formed operates in independently in the closed circuit refrigerating medium (ethylene glycol solution); Also set up boilers heated electrically and cooling tower in the device and come the load of pipe laying evenly; And the reasonable arrangement operational mode by programmable logic controller (PLC) (Programmable Logic Controller) PLC and to the reasonable distribution of ice-reserving amount, improved device operation efficiency.
The utility model purpose realizes being finished by following technical scheme:
A kind of earth source heat pump is in conjunction with the aircondition of ice cold-storage, it is characterized in that this device comprises earth source heat pump, Ice Storage Tank, heat exchanger, terminal temperature difference system, buried guard system, described earth source heat pump comprises condenser and evaporimeter, wherein evaporimeter is connected with the heat exchanger primary side with Ice Storage Tank respectively, described evaporimeter, Ice Storage Tank and heat exchanger primary side constitute independently refrigerating medium closed circuit, and described refrigerating medium is an ethylene glycol solution; Described condenser is connected with the terminal temperature difference system with buried guard system respectively by control valve, and the secondary side of heat exchanger connects buried guard system and terminal temperature difference system by control valve.
Described buried guard system constitutes by being connected in parallel between ground pipe laying and boilers heated electrically, the cooling tower three, and the ground pipe laying that is connected in parallel is connected the heat exchanger secondary side with boilers heated electrically, and the ground pipe laying that is connected in parallel is connected condenser with cooling tower.
Described aircondition also comprises PLC, each structure part in the described aircondition of described PLC control connection.
Described terminal temperature difference system comprises hot and cold water water knockout drum, hot and cold water water collector and user side air-conditioning.
The utility model has the advantages that: refrigerating medium (ethylene glycol solution) operates in independently in the closed circuit, avoided refrigerating medium to terminal Corrosion of Pipeline, when device changes the heat supply operating mode over to by the cooling operating mode, do not need refrigerating medium is carried out other processing simultaneously, reduced operating operation; Set up boilers heated electrically and cooling tower in the device, reducing of the influence of cold and hot imbalance, thereby strengthen the Energy Efficiency Ratio of geothermal heat exchanger, increased ground pipe laying service life, and can effectively reduce system's initial cost underground temperature field; This device is the reasonable arrangement operational mode by PLC and to the reasonable distribution of ice-reserving amount also, has improved the operational efficiency of device.
Description of drawings
Fig. 1 is the system principle schematic diagram of the utility model embodiment.
The specific embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding:
As shown in Figure 1, label 1-17 represents respectively: earth source heat pump 1, boilers heated electrically 2, Ice Storage Tank 3, plate type heat exchanger 4, eg pump 5, hot and cold water pump 6, cooling water circulating pump 7, cooling tower 8, hot and cold water water knockout drum 9, hot and cold water water collector 10, evaporimeter 11, buried pipeline section water knockout drum 12, buried pipeline section water collector 13, pipe laying 14, condenser 15, label: flow sensor Fi; Valve: Vi0, Vi1, Vi2, Vi3, Vi4, Vi5, Vi6, Vi7a, Vi7b, Vi8a, Vi8b, Vi8c, Vi8d, A1a, A1b, A2a, A2b, A3a, A3b, A4a, A4b; Temperature sensor: Ti1, Ti2, Ti3, Ti4, Ti5, Ti6, Ti7; Pressure sensor: Pi0, Pi1.
Earth source heat pump 1 is made of condenser 15 and evaporimeter 11.
PLC is the control device of present embodiment, it can accept pressure sensor (Pi0 and Pi1), flow sensor Fi, temperature sensor (Ti1, Ti2, Ti3, Ti4, Ti5, Ti6 and Ti7) institute data monitored, and regulates working procedure according to the kind running status of embodiment.
For boilers heated electrically in the buried guard system 2 and cooling tower 8, PLC can set corresponding working procedure according to the uneven situation of year suction heat dissipation capacity of disparity items and come pipe laying 14 evenly, below is two kinds of operation strategies:
Strategy A:PLC monitors the water temperature of buried guard system entrance and exit by temperature sensor Ti6 and Ti7, and according to the season and the buried guard system running status of being monitored starting valve Vi7a and Vi7b.Specifically, when the temperature that PLC monitors temperature sensor Ti6, Ti7 exceeded the design temperature territory, promptly the operational efficiency of pipe laying 14 reduced, and summer, Open valve Vi7b utilized cooling tower 8 to come the load of pipe laying 14 evenly; Winter, Open valve Vi7a utilized boilers heated electrically 2 to come the load of pipe laying 14 evenly.
Strategy B:PLC sets running time, and starts valve Vi7a and Vi7b in the official hour territory.Territory Open valve Vi7b at the appointed time when being summer utilizes cooling tower 8 to come the load of pipe laying 14 evenly; Territory Open valve Vi7a at the appointed time during winter utilizes boilers heated electrically 2 to come the load of pipe laying 14 evenly.
Come for user terminal system, PLC monitors the discharge of hot and cold water water collector 10 outlet conduits by flow sensor Fi, and regulates hot and cold water pump 6 operation according to the load of user terminal system; Siphon pressure according to pressure sensor Pi0 monitoring embodiment user terminal system changes the aperture of coming control valve Vi0.
Circulate for refrigerating medium, when summer, PLC is by everywhere water temperature, heat exchanger secondary side outlet water temperature and inlet water temperature in temperature sensor Ti1, Ti2, Ti3, Ti4 and the Ti5 monitoring refrigerating medium closed circuit, and according to the aperture of its running status control valve Vi2, Vi3, Vi4 and Vi5.Come ice-reserving amount in the rational allocation Ice Storage Tank 3 with this.
Device has three kinds of running statuses: ice-reserving operating mode, air conditioning condition, heat supply operating mode, and wherein ice-reserving operating mode and air conditioning condition are the summer operation state, the heat supply operating mode is the winter operation state.
1, ice-reserving operating mode: summer, night dip electricity period system operated in ice-make mode.
In the refrigerating medium loop, after ethylene glycol solution comes out from Ice Storage Tank 3, be delivered to heat exchange in the evaporimeter 11 of earth source heat pump 1, get back to the water of in the Ice Storage Tank 3 cold being passed in the Ice Storage Tank afterwards it is frozen outside coil pipe, enter next circulation through ethylene glycol solution pump 5.
In the chilled(cooling) water return (CWR), after cooling water comes out from the condenser 15 of earth source heat pump main frame 1, through cooling water circulating pump 7 be delivered to ground pipe laying 14 with or cooling tower 8 come discharges heat, get back to afterwards and carry out heat exchange in the condenser 15, enter next circulation.
2, air conditioning condition: summer, flat in the daytime peak electricity period system operated in the ice-melt refrigeration mode.
In the refrigerating medium loop, after ethylene glycol solution comes out from plate type heat exchanger 4 primary sides, carry via evaporimeter 11 by eg pump 5 to arrive Ice Storage Tank 3, get back to plate type heat exchanger 4 primary side heat exchange after in Ice Storage Tank 3, obtaining cold, enter next circulation.In this closed circuit, after the ice cube in Ice Storage Tank 3 melted to the greatest extent, ethylene glycol solution relied on evaporimeter 11 to cool off.
In the chilled water circuit, after chilled water comes out from plate type heat exchanger 4 secondary sides, be delivered to the terminal temperature difference system through hot and cold water pump 6, endways in the custom system, chilled water is shunted through hot and cold water water knockout drum 9 earlier, carries cold through user side air-conditioning terminad then, by hot and cold water water collector 10 interflow, be delivered to plate type heat exchanger 4 secondary side heat exchange through hot and cold water pump 6 afterwards, enter next circulation.
In the chilled(cooling) water return (CWR), after cooling water comes out from condenser 15, be delivered to ground pipe laying 14 or cooling tower 8 through cooling water circulating pump 7 and come discharges heat, get back to afterwards and carry out heat exchange in the condenser 15, enter next circulation.The cooling water cyclic process of this circulation and ice-reserving operating mode is identical, because of present embodiment has adopted ice cold-storage cooling technology, during night earth source heat pump unit ice making, relatively large and the continuous operation of heat extraction load, and the finishing ice-making time is directly mutually continuous with the beginning cooling time, can produce certain influence to the cooling water temperature of cooling operation in the daytime.Consider the operational efficiency and the service life of ground pipe laying, present embodiment takes cooling tower 8 auxiliary ground pipe layings 14 to dispel the heat in the chilled(cooling) water return (CWR) in summer, and cooling tower 8 can be opened or close by the strategy that PLC sets in this closed circuit.
3, heat supply operating mode: system operates in heat supply mode during the Winter heat supply.
In the refrigerating medium loop, ethylene glycol solution is delivered to heat exchange in the evaporimeter 11 through eg pump 5 after coming out from plate type heat exchanger 4 primary sides, gets back to plate type heat exchanger 4 primary side heat exchange afterwards, enters next heat supply circulation.
In the hot-water return, after hot water comes out from condenser 15, be delivered to the terminal temperature difference system through hot and cold water pump 6, hot water is shunted through hot and cold water water knockout drum 9 earlier, pass through user side air-conditioning terminad transfer heat then, by hot and cold water water collector 10 interflow, carry through hot and cold water pump 6 afterwards and get back to heating in the condenser 15, enter next heat supply circulation.
In the chilled(cooling) water return (CWR), cooling water is delivered to ground pipe laying 14 and electric boiler 2 from plate type heat exchanger 4 secondary sides through cooling water pump 7 and absorbs heat, gets back to plate type heat exchanger 4 secondary side heat exchange afterwards, enters next circulation.When pipe laying 14 heat exchange operational efficiency are not high in the winter time, can be by electric boiler 2 auxiliary heating, electric boiler 2 can open or cut out by the strategy that PLC sets in this closed circuit.
Claims (4)
1. an earth source heat pump is in conjunction with the aircondition of icing cold-storage, it is characterized in that this device comprises earth source heat pump, Ice Storage Tank, heat exchanger, terminal temperature difference system, buried guard system, described earth source heat pump comprises condenser and evaporimeter, wherein evaporimeter is connected with the heat exchanger primary side with Ice Storage Tank respectively, described evaporimeter, Ice Storage Tank and heat exchanger primary side constitute independently refrigerating medium closed circuit, and described refrigerating medium is an ethylene glycol solution; Described condenser is connected with the terminal temperature difference system with buried guard system respectively by control valve, and the secondary side of heat exchanger connects buried guard system and terminal temperature difference system by control valve.
2. a kind of earth source heat pump according to claim 1 is in conjunction with the aircondition of ice cold-storage, it is characterized in that described buried guard system constitutes by being connected in parallel between ground pipe laying and boilers heated electrically, the cooling tower three, the ground pipe laying that is connected in parallel is connected the heat exchanger secondary side with boilers heated electrically, the ground pipe laying that is connected in parallel is connected condenser with cooling tower.
3. a kind of earth source heat pump according to claim 1 is characterized in that described aircondition also comprises PLC, each structure part in the described aircondition of described PLC control connection in conjunction with the aircondition of ice cold-storage.
4. a kind of earth source heat pump according to claim 1 is characterized in that in conjunction with the aircondition of ice cold-storage described terminal temperature difference system comprises hot and cold water water knockout drum, hot and cold water water collector and user side air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920067735 CN201368551Y (en) | 2009-02-13 | 2009-02-13 | Air conditioner for combining ground source heat pump and ice-storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920067735 CN201368551Y (en) | 2009-02-13 | 2009-02-13 | Air conditioner for combining ground source heat pump and ice-storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368551Y true CN201368551Y (en) | 2009-12-23 |
Family
ID=41487443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920067735 Expired - Fee Related CN201368551Y (en) | 2009-02-13 | 2009-02-13 | Air conditioner for combining ground source heat pump and ice-storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368551Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466284A (en) * | 2010-11-07 | 2012-05-23 | 倪国森 | Heat collecting ground temperature air-conditioning system with circulation loop honeycomb heat collectors in series connection |
| CN103900175A (en) * | 2014-03-07 | 2014-07-02 | 浙江陆特能源科技有限公司 | Energy storage type heat pump system |
| CN105241142A (en) * | 2015-11-18 | 2016-01-13 | 国网天津市电力公司 | Control method of combined type cooling and heating system |
| CN105485964A (en) * | 2015-12-21 | 2016-04-13 | 华北电力大学（保定） | Improved ground source heat pump control device and control method thereof |
| CN106839274A (en) * | 2016-12-28 | 2017-06-13 | 杭州裕达自动化科技有限公司 | End cold and hot amount balance and reallocation power-saving control method in central air-conditioning monitoring system |
| WO2022068257A1 (en) * | 2020-10-30 | 2022-04-07 | 青岛海尔空调电子有限公司 | Control method for combined air conditioning system |
-
2009
- 2009-02-13 CN CN 200920067735 patent/CN201368551Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466284A (en) * | 2010-11-07 | 2012-05-23 | 倪国森 | Heat collecting ground temperature air-conditioning system with circulation loop honeycomb heat collectors in series connection |
| CN103900175A (en) * | 2014-03-07 | 2014-07-02 | 浙江陆特能源科技有限公司 | Energy storage type heat pump system |
| CN105241142A (en) * | 2015-11-18 | 2016-01-13 | 国网天津市电力公司 | Control method of combined type cooling and heating system |
| CN105485964A (en) * | 2015-12-21 | 2016-04-13 | 华北电力大学（保定） | Improved ground source heat pump control device and control method thereof |
| CN105485964B (en) * | 2015-12-21 | 2018-01-09 | 华北电力大学（保定） | A kind of improved earth source heat pump control device and its control method |
| CN106839274A (en) * | 2016-12-28 | 2017-06-13 | 杭州裕达自动化科技有限公司 | End cold and hot amount balance and reallocation power-saving control method in central air-conditioning monitoring system |
| WO2022068257A1 (en) * | 2020-10-30 | 2022-04-07 | 青岛海尔空调电子有限公司 | Control method for combined air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201177332Y (en) | Double cold source heat pump centralized type air conditioner device possessing heat recovery and ice cold-storage function | |
| CN201368551Y (en) | Air conditioner for combining ground source heat pump and ice-storage system | |
| CN102155772A (en) | Cascaded ice-storage air conditioning system and method utilizing same to supply cold air for air conditioner | |
| CN202947229U (en) | Heat pump energy storage and temperature and humidity independent control system | |
| CN105571029A (en) | Method and device for realizing extra-seasonal synchronous cold storage and heat storage of air-conditioner | |
| CN101280941A (en) | Double-cold source heat pump centralized type air conditioner device | |
| CN108870598A (en) | A kind of separate heat pipe energy-storage air conditioner system | |
| CN207299346U (en) | Central air-conditioning night low power consumption cold accumulating device by ice | |
| CN201203296Y (en) | Ground source heat pump air conditioner / refrigeration composite system | |
| CN102427148B (en) | Large-power UPS (uninterrupted power supply) special air-conditioner battery cabinet and method for adjusting and controlling working temperature of storage battery | |
| CN108895587B (en) | Series-parallel connection heat pump double-storage energy supply system | |
| CN110671765A (en) | Phase-change cold accumulation emergency cold supply system | |
| CN105333543A (en) | Multifunctional central air-conditioning system and running control method thereof | |
| CN210463179U (en) | Indirect cooling phase-change energy storage type ice source heat pump system | |
| CN104566726B (en) | A kind of family is with new and effective static ice making indirect ice-melting for cold air conditioning system | |
| CN218645684U (en) | Refrigerating system of developments ice cold-storage | |
| CN201177334Y (en) | Multitime water cold-storage type central air-conditioning system | |
| CN102865632B (en) | Heat pump energy storage and temperature and humidity independent control system | |
| CN204853756U (en) | Family is with indirect ice -melt cooling air conditioning system of new and effective static system ice | |
| CN113790485B (en) | Multi-energy complementary coupling energy system device | |
| CN204830275U (en) | Multi -functional central air -conditioning system | |
| CN210740810U (en) | Simple ice-making air source heat pump | |
| CN1862126A (en) | Natural ice energy-accumulation air-conditioner central cold supply apparatus system | |
| CN200943927Y (en) | Automatic cold-accumulating heat-accumulating type air conditioner | |
| CN107131694A (en) | A kind of Cool Thermal Storage For The Air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20130213 |