CN101865566B - Solar-powered VM circulating heat pump system - Google Patents
Solar-powered VM circulating heat pump system Download PDFInfo
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- CN101865566B CN101865566B CN2010102077739A CN201010207773A CN101865566B CN 101865566 B CN101865566 B CN 101865566B CN 2010102077739 A CN2010102077739 A CN 2010102077739A CN 201010207773 A CN201010207773 A CN 201010207773A CN 101865566 B CN101865566 B CN 101865566B
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Abstract
The invention discloses a solar-powered VM circulating heat pump system, which comprises a VM circulating heat pump system, a solar water heating system, a heat supply circuit and a cold energy supply circuit, wherein a heat source heat exchanger is arranged between a hot cylinder and a heat regenerator in the circulating heat pump system; the heat source heat exchanger and a water container in the solar water heating system form a heat exchange circulating system; and the energy transfer between the two systems is completed. When the system is used, solar can be used as driving energy to drive a VM circulating heat pump to work to cool or heat in order to meet an air conditioner cooling requirement. The solar is clean, safe and reliable, so energy shortage and environmental pollution are prevented. The system can be widely used in industrial, commercial and civil concentrated cooling and heating systems.
Description
Technical field
The present invention relates to a kind of VM circulating heat pump, especially a kind of VM circulating heat pump that utilizes solar energy as drive energy belongs to technical field of heat pumps.
Background technology
Solar energy can develop as a kind of regenerative resource of cleaning on the spot, has inexhaustiblely, nexhaustible, does not pollute the environment and destroys characteristics such as the ecological balance.The solar radiant energy that arrives earth surface every day is 5.57 * 10
18MJ is equivalent to 190,000,000,000,000 tons of standard coals, is about 1.56 * 10 of present whole world primary energy total quantity consumed
4Doubly.Utilize the drive energy of solar energy, mainly contain two approach as heat pump, the one, realize light-electricity conversion earlier, use the conventional compression type heat pump assembly of driven by power again; The 2nd, carry out light-Re conversion, use hotwork to be drive energy.The former systematic comparison is simple, but big-power solar generating costs an arm and a leg, and practicality is relatively poor at present; The latter also can combine the heat supply utilization except refrigeration air-conditioner, but conversion efficiency is not high.
It is the Stirling circulation that heat energy drives in essence that dimension is reined in Mil (Vuilleumier is hereinafter to be referred as VM) circulation, is that Vuilleumier proposed in 1918.Coefficient of performance COP based on the VM circulating heat pump can reach 1.6, and is suitable with the comprehensive COP of present direct combustion machine 1.56, and the general efficient of gas fired-boiler is about 0.9.The VM circulating heat pump has lot of advantages, and is lower such as rotating ratio, bearing load is light, seal request is low, wearing and tearing are little, vibration is little, noise is low, the life-span is long, and only needs a spot of machine power, even can also export a certain amount of shaft power.Simultaneously, because it adopts nitrogen, helium etc. as working medium, ozone free damage layer and greenhouse effects.
At present, mostly adopt common compressor that circulation power is provided in the ordinary hot pumping system,,, reduce environmental pollution, have very strong practical value for alleviating energy supply and demand contradiction as adopting the VM circulating heat pump of Driven by Solar Energy.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of VM circulating heat pump system that utilizes solar energy that the Driven by Solar Energy of refrigeration air-conditioner and hot water purposes can be provided as drive energy, while is provided.
Problem according to the invention realizes with following technical proposals:
A kind of VM circulating heat pump system of Driven by Solar Energy, it comprises VM circulating heat pump system, solar water heating system, send hot loop and send cold loop; Said VM circulating heat pump system is by cold cylinder; Cold passing piston; Cold regenerator; Hot cylinder, pick the drive link mechanism, the drive motors that move piston, hot regenerator, cold heat exchanger, cooler, room temperature chamber and pass piston and form, the right side of said cold passing piston with pick the left chamber of moving piston and constitute the room temperature chamber, the left side of cold passing piston with pick the right side of moving piston through about two sections pipelines communicate with the room temperature chamber; In the section pipeline of a left side, cold regenerator is set, in right section pipeline, hot regenerator is set; Drive motors drives cold passing piston through drive link mechanism and moves piston with picking; Said drive link mechanism is same bent axle, and said bent axle makes the total work constancy of volume in the piston motion of cold cylinder, hot cylinder;
Said solar water heating system is made up of solar thermal collector, water circulating pump, hot water storage device, and said solar thermal collector, water circulating pump and hot water storage device form a hot water heating circulation system;
Said send hot loop by cooler, send the hot loop circulating pump and send heat exchanger to form, said cooler is arranged in the right section pipeline that connects hot cylinder, the heat that send heat exchanger to produce blows away through the air-heater of setting up that send;
Said send cold loop by the cold interchanger, send the cold loop circulating pump and send cool exchanger to form, said cold interchanger is arranged in the left side section pipeline that connects cold cylinder, the cold air that send cool exchanger to produce blows away through the air-cooler of setting up that send.
The VM circulating heat pump system of above-mentioned Driven by Solar Energy is provided with the thermal source heat exchanger between said hot cylinder and hot regenerator, said thermal source heat exchanger and water receiver, water pump constitute a heat exchange circulation system.
The VM circulating heat pump system of above-mentioned Driven by Solar Energy is provided with second cooler in connecting the left side section pipeline of cold cylinder, said second cooler is connected with cooler.
The VM circulating heat pump system of above-mentioned Driven by Solar Energy is equipped with filler in said cold regenerator, the hot regenerator, and said filler is 400 a purposes bronze silk screen.This filler specific heat capacity when 300K is 3.4J/ (cm
3K), it can satisfy the capacity needs of heat exchange.
The VM circulating heat pump system of above-mentioned Driven by Solar Energy is set up auxiliary thermal source,, said auxiliary thermal source and hot water storage device also connect, and said auxiliary thermal source is electric heater or heating boiler.
The VM circulating heat pump system of above-mentioned Driven by Solar Energy, the hot water storage device of said solar water heating system is provided with warm washing water's outlet.
The present invention utilizes solar water heating system and VM circulating heat pump technology, and solar energy capable of using drove the work of VM circulating heat pump as drive energy and reached the purpose that refrigeration is sent heat when needing air conditioner refrigerating summer.Utilize solar energy, cleaning, safety, reliable are not worried shortage of energy sources and the environmental pollution that causes.Simultaneously, the hot water storage device has good heat insulation effect, can guarantee that the water temperature in the water receiver keeps certain temperature, reduces the loss of heat.
In addition, the present invention also has following advantage:
1, directly utilizes solar energy as driving heat energy, help the resource circulation utilization;
2, the working medium of the present invention's employing is nitrogen, helium etc., can not produce environment and pollute and destruction, can not produce the problem that causes because of alternative freon refrigerant;
3, whole device lifetime is long; The gas total measurement (volume) is in steady state at work in the circulating heat pump, and each several part has only the pressure reduction that flow resistance forms in the working chamber, and rotating speed is lower; Thereby bearing load is light, and seal request is low, wearing and tearing are little, vibration is little, noise is low, the life-span is long;
4, the coefficient of performance is higher than present direct-fired absorption unit.
The present invention can be widely used in industry, commerce and civilian central refrigerating, the heating system.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is Driven by Solar Energy VM circulating heat pump system figure of the present invention;
Fig. 2～Fig. 5 is the view of each stroke in the VM circulating heat pump course of work.
Each label is among the figure: 1, cold cylinder; 2, cold passing piston; 3, cold regenerator; 4, hot cylinder; 5, pick and move piston; 6, hot regenerator; 7, cold heat exchanger; 8, cooler; 9, drive link mechanism; 10, thermal source heat exchanger; 11, heat collector; 12, water circulating pump; 13, hot water storage device; 14 water pumps; 15, stop valve; 16, hot water outlet; 17, auxiliary thermal source; 18, drive motors.
The specific embodiment
The present invention utilizes technological the combining of solar water heating system and VM circulating heat pump to realize the object of the invention; In summer; When the needs air conditioner refrigerating, solar energy capable of using drives the work of VM circulating heat pump as drive energy and freezes, in other seasons; As long as sunlight is arranged, also can make full use of these energy.
As shown in Figure 1, whole system is made up of VM circulating heat pump system and solar water heating system.The VM circulating heat pump system is by cold cylinder 1; Cold passing piston 2; Cold regenerator 3; Hot cylinder 4, pick the drive link mechanism 9, the drive motors 18 that move piston 5, hot regenerator 6, cold heat exchanger 7, cooler 8, room temperature chamber 23 and pass piston and form, a thermal source heat exchanger 10 is set, between hot cylinder 4 and the hot regenerator 6 with solar water heating system composition closed circuit.Water circulating pump 14 and stop valve 15 are set on pipeline; Through water circulating pump with already heated delivery in the water receiver in the thermal source heat exchanger; Utilize the gas in thermal source heat exchanger and the hot cylinder to carry out heat exchange, improve the temperature of hot gas gas in the jar, accomplish the process that energy shifts.Wherein the gas in cold cylinder and the hot cylinder absorbs heat, and the gas in the room temperature chamber is heat release.Aperture through regulating stop valve is regulated flow, and then regulates the water temperature that gets in the thermal source heat exchanger.Flow through the water of thermal source heat exchanger through getting back in the water receiver after the heat exchange, and so repeatedly, circulation endlessly.
System needs drive motors that the machine power of (minicomputer is below 10W) on a small quantity is provided when starting working.At system's normal operation period, when picking when moving near the high order end that piston is in it, the volume of hot cylinder is bigger, and gas flow wherein is also more, and intrasystem mean temperature is just higher, and pressure is also just higher.On the contrary, when picking when moving piston and being in its low order end, the volume of hot cylinder approaches zero, and mean temperature and the pressure ratio of working medium are all lower in the machine, and like this, hot cylinder has just played driving.
The solar water heating system course of work.
Solar thermal collector passes to solar energy through the water in the heat collector, and the water temperature of the heat collector of flowing through is raise.Through water pump the water in the water tank constantly is transported to heat collector, and the current after the heating are got back in the storage tank, so reciprocation cycle makes the water in the water receiver remain certain temperature.Hot water outlet is established so that hot water to be provided in the bottom of storage tank.Solar water heating system transmits energy through thermal source heat exchanger 10 to the VM circulating heat pump system.
In cold regenerator 3, hot regenerator 6, filler is housed, said filler is high order number: 400 orders (400 holes of per inch), its volumetric specific heat capacity when 300K of high heat capacity is 3.4J/ (cm
3K) bronze wire packing.In process of refrigerastion, hot and cold air alternating current mistake is that intermediary realizes the exchange heat between the hot and cold air with the filler silk screen, utilizes these regenerators to play the effect that stores and reclaim cold.
The auxiliary thermal source of setting up 17 can adopt electrical heating or boiler heating.When solar energy was not enough, assistant heating equipment can also provide heat, and heat hot water can be carried out and the use of not influence system circulation smoothly.
Four courses of work of VM circulating heat pump are respectively like Fig. 2～shown in Figure 5.
Process 1-2: pick and move piston 5 and move right, cold passing piston 2 is to left movement, and cold cylinder 1 reduces with hot cylinder 4 volumes simultaneously; Portion gas in the cold cylinder 1 is heated to ambient temperature T through cold regenerator 3 quilts filler wherein then through 7 heat absorptions of cold heat exchanger
a, get into room temperature chamber 23.And the gas that was in originally in the hot cylinder 4 passes through hot regenerator 6, by filler cool to room temperature temperature T
a, get into the room temperature chamber.In this process, gas absorbs heat in the cold heat exchanger, and refrigeration effect is arranged.
Process 2-3: cold passing piston 2 continues to be moved to the left, and picks to move 5 plugs of living to left movement, and hot cylinder 4 increases, and cold cylinder 1 reduces.In the cold cylinder the gas that stays experience and the roughly the same process of process 1-2; And the portion gas in the room temperature chamber is heated to by filler and approaches high temperature T by picking when moving piston 2 and pushing away overheated regenerator 6
hGet into hot cylinder 4.
Process 3-4: pass the piston motion for two cold cylinder 1 and hot cylinder 4 volumes are increased simultaneously, the portion gas in the room temperature chamber is cooled to temperature near T through cold regenerator 3 by filler
C0, getting into cold cylinder 1, and in hot side, part room temperature chamber gas is heated to temperature near T by filler when hot regenerator 6
h, get into hot cylinder 4.
Process 4-1: cold passing piston 2 continues to move to left, and until left stop, picks and moves piston 5 centre position that then moves right, and cold cylinder 1 is increased to maximum, and hot cylinder 4 reduces.To the filler heat release, temperature is reduced near T portion gas when overheated regenerator 6 in the hot cylinder 4
aEnter into the room temperature chamber; Be cooled to temperature near T by filler when simultaneously the gas in part room temperature chamber is through cold regenerator 3
C0, get into cold cylinder 1.Gas absorbs heat generation refrigeration effect in this process in cold heat exchanger 7.
Comprehensive above-mentioned each process, the working medium of Driven by Solar Energy VM circulating heat pump are absorbed heat from low-temperature heat source and high temperature heat source respectively, and to the cooler that is in room temperature 8 heat releases.
Existing with a cover 70m
2Dwelling house be example.Suppose that the VM circulating heat pump can be the refrigerating capacity that the room provides 7000W, i.e. the caloric receptivity Q of cold cylinder
c=7KW.If room temperature T
a=303K, the temperature T that gas can reach in the hot cylinder
h=370K, the temperature T that gas can reach in the cold cylinder
c=280K, then the heat that absorbs of VM circulating heat pump high temperature heat source by
Can get Q
h=2742W.If this circulating heat pump working time is 10 hours, then need solar energy that heat Q=2742 * 10=27420Wh=27.42KWh=62712kJ is provided.
Heat collector adopts the heat-pipe vacuum-tube solar heat collector, average collecting efficiency 55%, all day irradiation 14.88MJ.
T can get by the Q=Cm Δ, water consumption m=62712 ÷ 4.2 ÷ (100-15)=176kg
The solar thermal collector setting angle is 40 °, and the solar radiation amount that heat collector is installed on the inclined-plane is about 1.3 times on the horizontal plane.Then every day is effective that heat be on every square metre of heat collector surface: 14.88 * 10
3KJ * 1.3 * 55%=10639.2KJ, solar thermal collector erection space: F=62712 ÷ 10639.2=9.3m
2
The present invention is except freezing in summer, and hot-water supply reaches a tractor serves several purposes throughout the year, realizes the purpose of comprehensive utilization solar energy.
Claims (6)
1. the VM circulating heat pump system of a Driven by Solar Energy is characterized in that, it comprises VM circulating heat pump system, solar water heating system, send hot loop and send cold loop; Said VM circulating heat pump system by cold cylinder (1), cold passing piston (2), cold regenerator (3), hot cylinder (4), pick the drive link mechanism (9) and the drive motors (18) that move piston (5), hot regenerator (6), cold heat exchanger (7), cooler (8), room temperature chamber (23) and pass piston and form; The right side of said cold passing piston with pick the left chamber of moving piston and constitute room temperature chamber (23); The left side of cold passing piston with pick the right side of moving piston pass through about two sections pipelines communicate with room temperature chamber (23); In the section pipeline of a left side, cold regenerator (3) is set, in right section pipeline, hot regenerator (6) is set; Drive motors (18) drives cold passing piston (2) and picks through drive link mechanism (9) and moves piston (5); Said drive link mechanism is same bent axle, and said bent axle makes the total work constancy of volume in the piston motion of cold cylinder, hot cylinder;
Said solar water heating system is made up of solar thermal collector (11), water circulating pump (12), hot water storage device (13), and said solar thermal collector (11), water circulating pump (12) and hot water storage device (13) form a hot water heating circulation system;
Said send hot loop by cooler (8), send hot loop circulating pump (19) and send heat exchanger (20) to form, said cooler is arranged in the right section pipeline that connects hot cylinder, the heat that send heat exchanger to produce blows away through the air-heater of setting up that send;
Said send cold loop by cold interchanger (7), send cold loop circulating pump (21) and send cool exchanger (22) to form; Said cold interchanger (7) is arranged in the left side section pipeline that connects cold cylinder, and the cold air that send cool exchanger to produce blows away through the air-cooler of setting up that send.
2. the VM circulating heat pump system of Driven by Solar Energy according to claim 1; It is characterized in that; Between said hot cylinder (4) and hot regenerator (6), thermal source heat exchanger (10) is set, said thermal source heat exchanger (10) constitutes a heat exchange circulation with hot water storage device (13), water pump (14).
3. the VM circulating heat pump system of Driven by Solar Energy according to claim 1 and 2 is characterized in that, in connecting the left side section pipeline of cold cylinder, second cooler (8-1) is set, and said second cooler is connected with cooler (8).
4. the VM circulating heat pump system of Driven by Solar Energy according to claim 3 is characterized in that, said cold regenerator (3), hot regenerator are equipped with filler in (6), and said filler is 400 a purposes bronze silk screen.
5. the VM circulating heat pump system of Driven by Solar Energy according to claim 4, it is characterized in that: set up auxiliary thermal source (17), said auxiliary thermal source and hot water storage device also connect, and said auxiliary thermal source is electric heater or heating boiler.
6. the VM circulating heat pump system of Driven by Solar Energy according to claim 5 is characterized in that: the hot water storage device of said solar water heating system (13) is provided with warm washing water's outlet (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102077739A CN101865566B (en) | 2010-06-24 | 2010-06-24 | Solar-powered VM circulating heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102077739A CN101865566B (en) | 2010-06-24 | 2010-06-24 | Solar-powered VM circulating heat pump system |
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| CN101865566A CN101865566A (en) | 2010-10-20 |
| CN101865566B true CN101865566B (en) | 2012-01-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783330B (en) * | 2014-12-25 | 2018-06-22 | 华北电力大学（保定） | A kind of distributed energy resource system of heat engine driving VM circulating heat pumps |
| CN107588583A (en) * | 2016-07-08 | 2018-01-16 | 华北电力大学（保定） | A kind of phase control device for VM circulating heat pumps variable working condition regulation |
| CN108302665A (en) * | 2017-01-13 | 2018-07-20 | 华北电力大学（保定） | A kind of capillary pad radiant type VM air-conditioning systems |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528676A (en) * | 1976-10-25 | 1978-10-18 | Scientific Atlanta | Dual loop heat driven heat pump systems |
| CN2520485Y (en) * | 2002-01-17 | 2002-11-13 | 谭超毅 | Solar hydraulic refrigerating apparatus |
| CN101440722A (en) * | 2008-07-25 | 2009-05-27 | 邹国富 | Liquid heat engine cycle power drive apparatus |
| CN101625181A (en) * | 2009-08-20 | 2010-01-13 | 管理 | Solar boiler and self-controlled supply-aided and regenerative and exchange heat cold-and-warm cyclic tea-bath fumigating system technology |
| CN201740310U (en) * | 2010-06-24 | 2011-02-09 | 华北电力大学（保定） | VM circulating heat pump system driven by solar energy |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020178724A1 (en) * | 2001-06-04 | 2002-12-05 | Robert Daniel Hunt | Cyrogen production via a cryogenic vapor driven power piston for use in a cryogenic vapor powered vehicle with rotary vane motors attached to the axles of the vehicle next to the vehicle's four wheels, using a heat source such as solar heat, heat of compression (heat pump or air compressor, etc.) or heat of friction (as formed by an electric generator), or chemical heat, or heat formed by electrical resistance, heat of combustion, etc. to generate high-pressure, high-kinetic energy cryogenic vapor |
-
2010
- 2010-06-24 CN CN2010102077739A patent/CN101865566B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528676A (en) * | 1976-10-25 | 1978-10-18 | Scientific Atlanta | Dual loop heat driven heat pump systems |
| CN2520485Y (en) * | 2002-01-17 | 2002-11-13 | 谭超毅 | Solar hydraulic refrigerating apparatus |
| CN101440722A (en) * | 2008-07-25 | 2009-05-27 | 邹国富 | Liquid heat engine cycle power drive apparatus |
| CN101625181A (en) * | 2009-08-20 | 2010-01-13 | 管理 | Solar boiler and self-controlled supply-aided and regenerative and exchange heat cold-and-warm cyclic tea-bath fumigating system technology |
| CN201740310U (en) * | 2010-06-24 | 2011-02-09 | 华北电力大学（保定） | VM circulating heat pump system driven by solar energy |
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