CN202613843U - Alternating current and gas engine parallel connection dual-drive heat pump device - Google Patents
Alternating current and gas engine parallel connection dual-drive heat pump device Download PDFInfo
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- CN202613843U CN202613843U CN2012200612907U CN201220061290U CN202613843U CN 202613843 U CN202613843 U CN 202613843U CN 2012200612907 U CN2012200612907 U CN 2012200612907U CN 201220061290 U CN201220061290 U CN 201220061290U CN 202613843 U CN202613843 U CN 202613843U
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Abstract
The utility model discloses an alternating current and gas engine parallel connection dual-drive heat pump device which comprises a heat pump unit, an AC motor, a gas engine and a transmission unit, wherein the output end of the AC motor is connected with the input end of the transmission unit through an AC motor clutch and the output end of the gas engine is connected with the input end of the transmission unit through a gas engine clutch; and the input end of the heat pump unit is connected with the output end of the transmission unit through a heat pump clutch. According to the utility model, by combining a urban alternating current pipe network with a gas engine technology, a urban alternating current pipe network drive motor can play a role of balancing the load change; and meanwhile, because an electric drive part is directly accessed to a urban alternating current power grid, a unit can be driven to operate for a long time when fuel is insufficient. Six different working operation modes can be realized, when a demanded load changes continuously, the gas engine has two working states of halting and operating in an economic region, therefore, the utilization of primary energy source can be improved, and the carbon emission is relatively reduced.
Description
Technical field
The present invention relates to the heat pump assembly in a kind of hybrid power field, relate in particular to a kind of alternating current, the two heat pump assemblies that drive of gas engine parallel connection.
Background technology
Though the domestic air conditioner yearly productive capacity of China ranks first in the world, cost descends fast, its technical merit also improves a lot.But China has a large amount of population, and economic development is very fast, and the electric power basis weak developing country of relative thin, single development electric air conditioner brings a series of consequence:
One of which further improves electric power peak load in summer, makes the power supply shortage in summer.Because it is short that China's residential air conditioner has intermitten service, running time, causes the electric load characteristic further to worsen.
Its two, domestic air conditioner exists some disadvantages that are difficult to overcome: imitate than low.Its Energy Efficiency Ratio is generally 2.7～3.1, and primary energy ratio is merely 0.8～1.0.Because receive the restriction of cost, the Energy Efficiency Ratio of domestic air conditioner is difficult to be greatly improved; Split-type air conditioner with fastest developing speed does not have aeration device at present, and indoor air quality can not get guaranteeing, and the noise of wall-through type air conditioner is bigger, and living environment is had influence in various degree.
In a word; When the contradiction of the growth of idle call electric weight and supply of electric power, power grid security, electric power enterprise economic benefit develops into certain degree, will cause very serious consequence, avoid the generation of similar crisis in China; Residential air conditioner is with being worth thinking, and it is extremely urgent to develop other form air-conditioning.
Gas-fired heat pump is mainly is the energy with the combustion gas, with gas-engine-driven steam compression heat pump device; And can make full use of cylinder sleeve of engine used heat, fume waste heat and low-grade amount of heat, realize the high-efficiency air-condition heating plant of winter heating, summer cooling.Compare with other heat supply (refrigeration) device, gas-fired heat pump has following advantage:
One of which, the power supply pressure of alleviation urban distribution network, balance combustion gas peak valley in season.Be the peak of power consumption in city summer, and the power consumption of summer air-conditioning then accounts for wherein greatly, and every year, summer, China all phenomenons such as supply of electric power deficiency, power cuts to limit consumption can occur.Because summer weather is hot, resident living also descends with amount of consumed gas greatly simultaneously, and the load factor of pipe network is lower.This has just created advantage for the gas air conditioner development.
Its two, the development of gas-fired heat pump helps to optimize energy resource structure, helps the comprehensive utilization of the energy.At present, be that coal is occupied an leading position in the consumption of China primary energy always, the average energy consumption structure coal in the composition of energy consumption structure and the world accounts for 27%, oil account for 40% and natural gas to account for 24% gap bigger.
Its three, operational efficiency is higher, primary energy ratio is high.Primary energy ratio was about about 0.9 when gas-fired heat pump moved in full load, and system's primary energy ratio of band Waste Heat Recovery is near 1.45, and this is more much higher than absorption energy utilization rate.Simultaneously operating cost and payoff period mainly with the pneumoelectric price of locality than relevant, for electric load with price is higher and area that the combustion gas price is relatively stable and lower, its advantage is more outstanding.
Yet in the real process of operation of heat pump, because user's heat pump load receives the influence of outdoor environment, indoor environment or other factors and constantly change, and the fluctuating range of user's heat pump load is big.For the gas engine heat pump system of routine; Be difficult to keep engine operation in the economical operation district, regular meeting moves in the slow-speed of revolution or high engine speed range during engine, causes the overall coefficient of performance of conventional gas engine heat pump system to descend; Discharging increases, and is unfavorable for energy-conserving and environment-protective.
Summary of the invention
Sub-load running and idling phenomenon when the technical problem that the present invention will solve is gas only motor driven heat pump, and single electricity drives the lot of consumption electrical problems of air conditioner heat pump system.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: alternating current, the two heat pump assemblies that drive of gas engine parallel connection comprise heat pump unit, alternating current generator, gas engine, gear unit; The power intake of alternating current generator is an alternating current, and clutch end is connected with gear unit through the alternating current generator clutch; Gas engine is connected with pipeline network of fuel gas in city through the decompression stable-pressure device, and clutch end is connected with the input of gear unit through the gas engine clutch; The power intake of heat pump unit connects the output of gear unit through compressor clutch.
The present invention adopts two kinds of energy resource systems; The advantage that the 220V alternating current is driven air-conditioning and gas heat pump air-conditioning is carried out complementation; In the high-efficiency operation of realizing gas-burning machine heat pump; Make heat pump assembly operation more stable, as when power failure or electricity shortage occurring, device can adopt gas engine to drive; And gas supply anxiety or gas ductwork can adopt when going wrong the 220V alternating current to give whole system function through alternating current generator.The power drive part of this device can realize three kinds of operating conditions: 220V alternating current single driving whole system, gas engine single driving and alternating current and the running of gas engine driven in common system; Can realize six kinds of different working running statuses: 1) alternating current drives refrigeration mode; 2) gas engine drives refrigeration mode; 3) alternating current and gas engine driven in common refrigeration mode; 4) alternating current drives heat supply mode, 5) gas engine driving heat supply mode, 6) alternating current and gas engine driven in common heat supply mode.
In order to guarantee that gas engine when operation cylinder sleeve temperature is in suitable temperature range; Further improve energy utilization rate simultaneously; Also be provided with waste heat recovery plant; Waste heat recovery plant comprises water circulating pump, air radiator, plate type heat exchanger, flue gas heat exchange device, centrifugal water pump, attemperater, storage tank, running water control valve, all is communicated with through pipeline between aforementioned each element; Water circulating pump, plate type heat exchanger and air radiator circulate in order and are connected, and are connected pipeline through the gas engine enclosure interior between air radiator and the water circulating pump; Storage tank, centrifugal water pump, flue gas heat exchange device, plate type heat exchanger, attemperater pipeline in order connect, and the flue gas heat exchange device is connected with gas engine, and storage tank passes through the running water control valve and is connected with the city tap-water pipe network.
The advantage that adds waste heat recovery plant has two, one, carries out after the recovery of waste heat heat cycles water so that the domestic hot-water to be provided, and the 2nd, guarantee the running temperature of engine.The cylinder sleeve of engine coolant water temperature influences the cooling effectiveness of engine, the thermic load of hot parts, the heat distribution and the energy utilization of engine; If water temperature is inappropriate, can cause engine to cross cold or superheat working, mixture combustion is undesired; The parts wear aggravation makes engine power descend.Add waste heat recovery plant and help prolonging service life of whole device.
As a kind of improvement project of the present invention, said gear unit comprises belt, main pulley and from belt pulley, the belt solderless wrapped connection is at main pulley, from belt pulley, and main pulley is an input, is output from belt pulley.
As a kind of improvement project of the present invention, aforementioned heat pump unit comprises compressor, four-way switching valve, throttle mechanism and two groups of evaporative condensers; The compressor operating required drive is provided by alternating current generator or gas engine through gear unit, and compressor connects two groups of evaporative condensers respectively through the four-way switching valve; Be communicated with through throttle mechanism between two groups of evaporative condensers.
Advantage of the present invention is: drive the parallel type hybrid dynamic technical application in the combination of heat pump and gas-fired heat pump to traditional electrical; Adopt city alternating current pipe network to combine with the gas engine technology; City alternating current pipe network drive motors not only can play the effect that balanced load changes; Because electric drive part directly inserts the city AC network, long drive train is moved in the time of can being implemented in the combustion gas shortage simultaneously; Can realize six kinds of different working operational modes: 1) alternating current drives refrigeration mode; 2) gas engine drives refrigeration mode; 3) alternating current and gas engine driven in common refrigeration mode; 4) alternating current drives heat supply mode, 5) gas engine driving heat supply mode, 6) alternating current and gas engine driven in common heat supply mode; Simultaneously, under the situation that demand load constantly changes, there are two kinds of duties in gas engine, and the one, shut down, the 2nd, operate in the economic zone of gas engine.Thereby can improve the utilization of primary energy, reduce carbon emission relatively.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in Figure 1, the present invention includes power distribution system, heat pump unit and waste heat recovery plant;
Aforementioned power distribution system comprises alternating current generator 1, gas engine 2, belt 6 and main pulley 5-1, from belt pulley 5-2; The input of alternating current generator 1 is through the city AC network of switch 20 connection 220V, and the output of alternating current generator 1 is connected with main pulley 5-1 through alternating current generator clutch 3; The power intake of gas engine 2 is through control valve 21 connection city combustion gas nets, and the clutch end of gas engine 2 is connected with main pulley 5-1 through gas engine clutch 4.
Aforementioned heat pump unit comprises compressor 8, four-way switching valve 9, throttle mechanism 11 and two groups of evaporative condensers 10; The power intake of compressor 8 passes through compressor clutch 7 and is connected from belt pulley 5-2.Compressor connects two groups of evaporative condensers 10 respectively through four-way switching valve 9; Be communicated with through throttle mechanism 11 between two groups of evaporative condensers 10.Belt 6 solderless wrapped connections are at main pulley 5-1, from belt pulley 5-2.
Aforementioned waste heat recovery plant comprises water circulating pump 12, air radiator 13, plate type heat exchanger 14, flue gas heat exchange device 15, centrifugal water pump 16, attemperater 17, storage tank 18, running water control valve 19, all is communicated with through pipeline between aforementioned each element; Wherein, water circulating pump 12, air radiator 13 and plate type heat exchanger 14 circulate in order and are connected, and water circulating pump 12 passes in gas engine 2 housings with the pipeline that is connected between the air radiator 13, and are used to control the running temperature of gas engine 2; The connection that circulates in order of flue gas heat exchange device 15, plate type heat exchanger 14, attemperater 17, storage tank 18, centrifugal water pump 16; And flue gas heat exchange device 15 is connected with gas engine 2; Heat in the high-temperature flue gas that produces when recycling gas engine 2 work; Running water control valve 19 is connected with storage tank 18, is used in storage tank 18, injecting running water.When the cycling use of water in the attemperater 17 heats up under heat conducting effect gradually, can be the user hot water is provided.
User mode of the present invention is following:
One, electric drive mode:
Under this pattern, switch 20 closures, the urban electricity supply pipe network is supplied power to alternating current generator 1; Thereby make alternating current generator clutch 3 closures, the power output shaft of alternating current generator 1 drives 3 rotations of alternating current generator clutch, thereby further drives main pulley 5-1 rotation; Belt 6 beginning transmissions, and make from belt pulley 5-2 and rotate synchronously, drive compressor clutch 7 rotations from belt pulley 5-2; Make compressor starts work, realize the winter heating of freezing summer.The structure and the operation principle of aforementioned heat pump unit are prior art.
In addition, under this kind pattern, control valve 21 is closed, and pipeline network of fuel gas in city does not provide the fuel supply to gas engine 2, and gas engine clutch 4 is in released state, and waste heat recovery plant is not worked.
Under this mode of operation, the load of whole system is all provided by alternating current, and gas engine is in stopped status, and it is less mainly to be used in supply of electric power abundance and cooling load, perhaps the nervous situation of gas supply of the less or pipeline network of fuel gas in city of thermic load.
Two, gas engine drive pattern
Under this pattern, control valve 21 is opened, and pipeline network of fuel gas in city provides the fuel supply to gas engine 2; The output shaft of gas engine 2 drives 4 rotations of gas engine clutch, thereby further drives main pulley 5-1 rotation, belt 6 beginning transmissions; And make from belt pulley 5-2 and rotate synchronously; Drive compressor clutch 7 rotations from belt pulley 5-2, make compressor starts work, realize cooling and warming.At this moment, Waste Heat Recovery is carried out in the waste heat recovery plant operation, and waste heat recovery plant can guarantee the running temperature of gas engine, simultaneously the domestic hot-water can also be provided.
In addition, under this kind pattern, switch 20 breaks off, and the urban electricity supply pipe network is not supplied power to alternating current generator 1, and at this moment, alternating current generator clutch 3 also is in released state, and alternating current generator is in stopped status, and whole system is all driven by gas engine.
This mode of operation is applicable to the power tense in summer, and the superfluous relatively cooling condition of combustion gas, the winter that perhaps need heat.
Three, driven in common pattern
Urban electricity supply pipe network and gas ductwork provide energy supply to system simultaneously, and alternating current generator and gas engine co-operation are to the compressor power output, and WHRS guarantees the gas engine running temperature simultaneously.The driven in common refrigeration mode can be used for during the cruel summer under the very large situation of cooling load needs.When the required refrigeration duty of system can not adopt this kind mode of operation during the optimum operation economic zone at gas engine yet, utilize the required load of alternating current generator balance portion, realize the efficient operation of gas engine.
The driven in common pattern passes through to be passed through by alternating current generator and gas engine the mode driven in common compressor operation of parallel connection, can adopt this mode of operation in required thermic load when greatly perhaps gas engine is not in the optimum operation economic zone.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200612907U CN202613843U (en) | 2012-02-24 | 2012-02-24 | Alternating current and gas engine parallel connection dual-drive heat pump device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200612907U CN202613843U (en) | 2012-02-24 | 2012-02-24 | Alternating current and gas engine parallel connection dual-drive heat pump device |
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| CN202613843U true CN202613843U (en) | 2012-12-19 |
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| CN2012200612907U Expired - Fee Related CN202613843U (en) | 2012-02-24 | 2012-02-24 | Alternating current and gas engine parallel connection dual-drive heat pump device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563970A (en) * | 2012-02-24 | 2012-07-11 | 东南大学 | Alternating-current and gas engine parallel dual-drive heat pump device |
| CN106257158A (en) * | 2016-07-29 | 2016-12-28 | 东南大学 | A kind of hybrid-power combustion-gas thermal pump water-heater system and control method thereof |
| CN107339687A (en) * | 2016-12-30 | 2017-11-10 | 上海晟煜科技有限公司 | One kind is station area's heating technique using gas compressor waste heat |
| CN114256965A (en) * | 2021-12-24 | 2022-03-29 | 深圳供电局有限公司 | Energy router and control method thereof |
-
2012
- 2012-02-24 CN CN2012200612907U patent/CN202613843U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563970A (en) * | 2012-02-24 | 2012-07-11 | 东南大学 | Alternating-current and gas engine parallel dual-drive heat pump device |
| CN106257158A (en) * | 2016-07-29 | 2016-12-28 | 东南大学 | A kind of hybrid-power combustion-gas thermal pump water-heater system and control method thereof |
| CN107339687A (en) * | 2016-12-30 | 2017-11-10 | 上海晟煜科技有限公司 | One kind is station area's heating technique using gas compressor waste heat |
| CN107339687B (en) * | 2016-12-30 | 2019-09-06 | 上海晟煜科技有限公司 | It is a kind of to utilize gas compressor waste heat for station area's heating technique |
| CN114256965A (en) * | 2021-12-24 | 2022-03-29 | 深圳供电局有限公司 | Energy router and control method thereof |
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| 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: 20121219 Termination date: 20140224 |