CN100504272C - Water heat exchange system and method applying alternately solar, fuel oil and gas thermal power - Google Patents

Abstract

The invention relates to a water heat exchange system and method applied to the exchange of solar energy and fuel, air heat energy. The system comprises a solar heat absorbing device, a fuel/gas burner, a burning chamber, a water heat exchanger and a water tank; the water heat exchanger and the burning chamber are arranged in the water tank; a water-proof tank is arranged on and communicated with the burning chamber; the burner is installed in the waterproof tank; the water heat exchanger is serially connected between the solar heat absorbing device and the burning chamber. The system pre-heats the water which enters into the water tank by setting a solar waste heat device at the solar energy outlet, so as to make full use of the solar energy; dispose the waste gas by a filter connected to a smoke pipe of a flue gas waste heat exchanger, so as to reduce pollution of the waste gas produced by burning of the burner to the air; and the has the advantages of environmental protection and emission reduction. The air flows from bottom to top in flow channels separated by a plurality of air partition boards which are deranged in the box solar heat absorbing device, so that the solar heat energy can be fully absorbed.

Description

The hydrothermal exchange system and method for solar energy and fuel oil, gas heat energy alternate application

Technical field

The present invention relates to a kind of heat-exchange device, especially a kind of heat energy that both can utilize solar energy can utilize the hydrothermal exchange system and method for burner as the solar energy of thermal source and fuel oil, gas heat energy alternate application again.

Background technology

Existing heat-exchange device from the use occasion branch, generally is divided into the family expenses heat-exchange device, as shower, or is the bathroom heat-exchange device, as the employed steam boiler of factory or bathroom.Divide from employed heat energy, generally be divided into apparatus for heating water by solar energy or fuel oil, combustion gas or coal burning water heating device.Present apparatus for heating water by solar energy, the storage tank that generally comprises solar vacuum heat absorbing pipe and communicate with it is after the water heating of solar energy with vacuum heat absorbing pipe, be stored in the storage tank standby, this solar heat switch, because its moisture storage capacity is limited, the existing family that is used for mostly uses; And be the hot water apparatus of the energy with fuel oil, combustion gas or fire coal, general because its cost is expensive, volume is big all only in the bigger occasion of water consumption, use as factory, bathroom.

Can utilize solar energy in order to reach, be suitable for the heat-exchange device that the bigger occasion of water consumption is used again, people have invented the heat-exchange device that solar energy and fuel oil, gas Combined are used, this heat-exchange device generally comprises solar heat-collection plate, hot water exchanger and fuel oil, combustion heater, and the water back that joins with solar heat-collection plate and fuel oil, combustion heater is arranged respectively in described hot water exchanger separately independently.It still is the heating system of two platform independent in fact for this hot water exchanger, so its structure more complicated, cost is also higher relatively.

For this reason, the inventor has applied for Chinese utility model patent No. 200620016952.3 on July 11st, 2006, has proposed the hydrothermal exchange device of a kind of solar energy and fuel oil, gas heat energy alternate application.It has adopted hydrothermal exchange device and combustion chamber to be contained in the tank, the one water proof case that communicates with it is arranged on the combustion chamber, burner is contained in the water proof case, the structure of hydrothermal exchange device serial connection between solar energy heat absorbing device and combustion chamber, like this, solar energy heat absorbing device and fuel oil, the shared hydrothermal exchange device of air burner, and can be used alternatingly, it has simple in structure, advantage with low cost.Yet, also there is following shortcoming in the hydrothermal exchange device of this structure: 1, owing to fuel oil, air burner can produce waste gas when working, and comprise some harmful substances in the waste gas usually, as dust, sulfur-containing compound etc., discarded discharging pollutes the environment, and is unfavorable for applying of product.2, the air of solar energy heating only carries out heat exchange in the hydrothermal exchange device, and the heat of hot-air often can't exchange completely, and the air of discharging from the solar energy outlet of hydrothermal exchange device still has certain heat, and its heat exchanger effectiveness is low.3, its solar energy heat absorbing device is made of a coiled pipe, because the heating surface area of coiled pipe is limited, its area that absorbs solar energy also has been subjected to limitation, can't utilize solar energy fully, and the utilization ratio of its solar energy is lower.

Summary of the invention

The technical problem that the present invention solves is to overcome above-mentioned shortcoming, and the hydrothermal exchange system of a kind of solar energy of the hot-air waste heat that can effectively utilize the solar energy outlet after the heat exchange of hydrothermal exchange device and fuel oil, gas heat energy alternate application is provided.

The technical problem that the present invention further solves provides the hydrothermal exchange system of a kind of solar energy of the exhaust emission that produces can effectively reduce fuel oil, air burner work time the and fuel oil, gas heat energy alternate application.

The technical problem that the present invention further solves provides a kind of hydrothermal exchange system that can effectively increase the heat exchange area of solar energy heat absorbing device, the solar energy that improves the solar energy utilization ratio and fuel oil, gas heat energy alternate application.

Another technical problem that the present invention solves provides a kind of solar energy and fuel oil, hydrothermal exchange method gas heat energy alternate application, that can effectively reduce exhaust emission.

Technical scheme of the present invention is: the hydrothermal exchange system of a kind of solar energy and fuel oil, gas heat energy alternate application comprises solar energy heat absorbing device, fuel oil/air burner, combustion chamber, hydrothermal exchange device and tank; Described hydrothermal exchange device and described combustion chamber are contained in the described tank, and on described combustion chamber, be provided with the water proof case that communicates with it, described burner is contained in the described water proof case, described hydrothermal exchange device serial connection is between described solar energy heat absorbing device and described combustion chamber, this system also comprises solar energy waste heat absorption plant, is used to absorb the waste heat of the hot gas of the described solar energy heat absorbing device generation of passing through described hydrothermal exchange device.

The described solar energy waste heat absorption plant of system of the present invention comprises the shell body of hollow, is provided with the waste hot air inlet tube of the hot gas of the described solar energy heat absorbing device generation that inserts described hydrothermal exchange device on described shell body; In described shell body, be provided with the heat absorption airduct that is communicated with the waste hot air inlet tube; Be provided with the feedback airduct that is communicated with and is communicated to described solar energy heat absorbing device with described heat absorption airduct in the bottom of described shell body;

Form water layer around the inherent described heat absorption airduct of described shell body, also be provided with the feed-water intake that is communicated with described water layer on the described shell body and give water out.

The outer wall of the described heat absorption airduct of system of the present invention is provided with auxiliary heat absorbing sheet.

The top section of the described shell body of system of the present invention and end section are respectively equipped with the surge chamber that is communicated with described heat absorption airduct; Described waste hot air inlet tube outlet is linked into the surge chamber of described top section; The surge chamber of section of the described end is communicated with described feedback airduct.

System of the present invention also comprises filter, the waste gas that produces when being used to filter from described fuel oil/air burner running.

System of the present invention also comprises the fume afterheat switch that is communicated with described combustion chamber;

Described filter comprises smoke discharging pipe and blowdown water tank; Described smoke discharging pipe inlet is communicated with described fume afterheat switch introduces waste gas, and the outlet of described smoke discharging pipe is inserted in the described blowdown water tank.

The described solar energy heat absorbing device of system of the present invention is the solar energy heat absorbing device matrix of being made up of a plurality of solar energy heat absorbings unit;

Each solar energy heat absorbing unit comprises metallic plate, down metallic plate and the dull and stereotyped casing that surrounds of metallic plate all around; And in described dull and stereotyped casing, be provided with the wind isolation board that dislocation is arranged, form labyrinth runner.

The described outside of going up metallic plate of system of the present invention is equipped with the flint glass cover plate.

The described metallic plate inboard down of system of the present invention is provided with heat insulation backing plate, and described heat insulation backing plate separates described metallic plate and wind isolation board down.

The present invention also provides the method for a kind of solar energy and fuel oil, gas heat energy alternate application, may further comprise the steps:

When fuel oil/air burner is worked, close the communication passage of the smoke discharging pipe of solar energy heat absorbing device and hydrothermal exchange device, and open smoke exhaust pipe valve, opened smoke-discharging air-introduced machine, open burner operation, and the waste gas that described fuel oil/air burner burns is filtered the back by filter discharge, open the solar energy waste heat blast pipe of solar energy heat absorbing device this moment;

When described solar energy heat absorbing device is worked, close the communication passage of described fuel oil/air burner and described hydrothermal exchange device; Close smoke exhaust pipe valve, solar energy waste heat blast pipe, smoke evacuation air-introduced machine and burner, open solar switch, solar energy hot gas circulating pump and switch thereof, and by the waste heat of solar energy waste heat absorption plant absorption through the hot gas of the described solar energy heat absorbing device generation of described hydrothermal exchange device.

The present invention is owing to adopted hydrothermal exchange device and combustion chamber to be contained in the tank, the one water proof case that communicates with it is arranged on the combustion chamber, burner is contained in the water proof case, the structure of hydrothermal exchange device serial connection between solar energy heat absorbing device and combustion chamber, like this, solar energy heat absorbing device and fuel oil, the shared hydrothermal exchange device of air burner, and can be used alternatingly, by solar energy waste heat absorption plant is set in the solar energy exit, further be used to heat from the hot gas of solar energy outlet, the water that enters in the tank is carried out preheating, make full use of the energy of solar energy, it is abundant to have a heat exchange, the advantage that efficient is high.

Further, by the filter that on the smoke exhaust pipe of fume afterheat absorption plant, connects waste gas is handled, thereby the waste gas that produces when reducing burner combustion has the advantage of environmental protection, reduction of discharging to the pollution of air, can be widely used in enterprise, unit various occasion hot water supply.

Further, air is under the circulating pump powered, flow from bottom to top in the runner that the wind isolation board that a plurality of dislocation in box solar energy heat absorbing device are arranged is divided into, increased the heat exchanger time and the area of air and solar energy heat absorbing device, reach the effect that gross area absorbs solar thermal energy.

Description of drawings

Fig. 1: the perspective view of an embodiment of the present invention;

Fig. 2: be the structure schematic top plan view of the another kind of hydrothermal exchange device of the present invention;

Fig. 3: be the A-A cross-sectional schematic among Fig. 2;

Fig. 4: for master embodiment illustrated in fig. 2 looks schematic diagram;

Fig. 5: be schematic rear view embodiment illustrated in fig. 2;

Fig. 6: for looking schematic diagram in the right side embodiment illustrated in fig. 2;

Fig. 7: for looking schematic diagram in a left side embodiment illustrated in fig. 2;

Fig. 8: be the schematic diagram of filter of the present invention;

Fig. 9: be the schematic diagram of solar energy waste heat absorption plant of the present invention;

Figure 10: be the schematic top plan view of solar energy heat absorbing device of the present invention;

Figure 11: be the schematic side view of solar energy heat absorbing device of the present invention;

Figure 12: be the schematic top plan view of the another kind of form of solar energy heat absorbing device of the present invention.

The specific embodiment

For embodiments of the present invention clearly are described, now that one in the work of legend shown in the figure is in a word bright:

1, solar energy heat absorbing device;

11, solar energy heat absorbing device matrix; 12, matrix blowoff valve;

13, solar pipe threeway; 14, solar energy waste heat blast pipe;

15, solar energy waste heat air bleeding valve; 16, go up metallic plate;

17, following metallic plate; 18, metallic plate all around;

19, wind isolation board;

2, tank;

21, hot water draining valve;

3, hydrothermal exchange device;

31, fume afterheat switch; 32, preheating tubulation; 33, be communicated with the waterpipe import;

34, solar energy import Thermal packer; 35, preheating water outlet;

36, solar switch; 37, solar energy radiation parts;

38, thin tracheae; 39, solar energy house steward;

4, fuel oil, air burner;

41, water proof case; 42, combustion chamber; 43, water pipe;

44, fire tube;

45, return duct; 46, hot gas road; 47, heat-collecting box;

461, hot gas road entrance point;

5, solar energy hot gas circulating pump;

51, pump inlet switch; 52, solar energy outlet Thermal packer;

53, circulating-pump outlet switch; 54, solar energy air inlet pipe;

55, fin; 56, solar energy outlet;

6, running water switch;

7, smoke exhaust pipe;

71, smoke exhaust pipe valve; 72, air-introduced machine;

8, adjustable feet;

9, thick tracheae;

91, smoke discharging pipe; 92, blowdown water tank 93, running water filling pipe;

100, solar energy waste heat absorption plant

101, shell body; 102, surge chamber; 103, waste hot air inlet tube;

104, water layer; 105, feedback airduct; 106, feed-water intake;

107, give water out; 108, heat absorption airduct; 109, auxiliary heat absorbing sheet;

200, casing

201, flint glass cover plate; 202, heat insulation backing plate

See also Fig. 1 and Fig. 2, the perspective view of Fig. 1 an embodiment of the present invention; Fig. 2 is the structure schematic top plan view of hydrothermal exchange device of the present invention.The present invention is the hydrothermal exchange system of a kind of solar energy and fuel oil, gas heat energy alternate application, comprise solar energy heat absorbing device 1, form solar energy equipment matrix 11 by several solar energy heat absorbing devices 1, matrix 11 is formed for several solar energy heat absorbing devices 1 of number row among the figure, and the quantity of solar energy heat absorbing device 1 and row's number can be provided with as required.

One end of the outlet side of solar energy matrix 11 and solar energy threeway 13 joins, the other end of solar energy threeway 13 joins with solar energy waste heat blast pipe 14 through solar energy waste heat air bleeding valve 15, and the 3rd end of solar energy threeway 13 joins through solar switch 36 and solar energy import Thermal packer 34 1 ends.The other end and the solar energy air inlet pipe 54 of solar energy import Thermal packer 34 are joined, and solar energy air inlet pipe 54 is joined with hydrothermal exchange device 3 by solar energy radiation parts 37 and thin tracheae 38.Air enters into solar energy heat absorbing device 1 under the promotion of solar energy hot gas circulating pump 5, under the irradiation of the sun, heat up, absorb the heat energy of solar energy, thereby form hot gas with uniform temperature, the hot gas that forms enters into hydrothermal exchange device 3 by solar energy threeway 13, solar switch 36 etc. and carries out heat exchange, detailed aftermentioned.

This hydrothermal exchange device 3 and combustion chamber 42 are contained in the tank 2, and the water in the tank 2 is with hydrothermal exchange device 3 and combustion chamber 42 submergences.In tank 2 bottoms hot water draining valve 21 is arranged, user's water is provided from hot water draining valve 21.The one water proof case 41 that communicates with combustion chamber 42 is arranged on combustion chamber 42, and burner 4 is contained in the water proof case 41.

This combustion chamber 42 is a cylindrical tank, when burner 4 work, produces high temperature hot gas, and chemical energy is converted to heat energy.Simultaneously, the return duct 45 that communicates with 42 inside, combustion chamber is arranged on the outer wall of cylindrical tank, hot gas in the combustion chamber 42 enters into return duct 45, the effect of return duct 45 is directly with in the water of the thermal energy exchange in the combustion chamber 42 in the tank 2, after return duct 45 exchanges, hot gas enters the heat-collecting box 47 of heat exchange pipe network along the direction of arrow among the figure through fire tube 44, further with heat-collecting box 47 in water pipe 43 heat-shifts; Enter hot gas road 46 through hot gas road entrance point 461 then, with the water pipe 43 further heat-shifts that are distributed in the hot gas road, described water pipe 43 is two groups of several being arranged in parallel, and wherein the diameter of one group of water pipe 43 is greater than the diameter of another group water pipe 43.At last, enter the tubulation 32 in the fume afterheat switch 31, behind the further heat-shift of preheating water in the fume afterheat switch 31, opened smoke-discharging air-introduced machine 72, waste gas is discharged from smoke exhaust pipe valve 71 and smoke exhaust pipe 7.

As Fig. 1, shown in Figure 8, further, be connected with filter in the exit of smoke exhaust pipe 7, so that the waste gas of discharging is handled, thereby reduce of the pollution of burner combustion waste gas to air.This filter comprises smoke discharging pipe 91, blowdown water tank 92 and the running water filling pipe 93 that is communicated with the outlet of smoke exhaust pipe 7.The outlet of smoke discharging pipe 91 is inserted in the blowdown water tank 92, and the water logging of blowdown water tank 92 there is not about the about 5mm of outlet of smoke discharging pipe 91, forms to filter water layer, and the size of submergence can be adjusted as required certainly.When opening air-introduced machine 72, the waste gas that has certain pressure is discharged by smoke exhaust pipe 7, enters into via smoke discharging pipe 91 in the water of blowdown water tank 92, and the filtration water layer that waste gas breaks through blowdown water tank 92 again is discharged to place.Utilize the water filtration principle, the flue dust in the waste gas, sulfur-containing compound, waste heat etc. are deposited in the water of blowdown water tank 92, play the effect of filtering exhaust.Utilize this water filtration principle, both filtered the harmful substance in the waste gas, absorbed the waste heat of waste gas again, reduce the discharging, the protection environment that pollute.Understandable, can offer sewage draining exit in the bottom of blowdown water tank 92, the sediment that is deposited in the blowdown water tank 92 is removed.Liquid in blowdown water tank 92 can also comprise the material that other are used for absorbing the compound of waste gas except water.Running water filling pipe 93 is 92 moisturizings of blowdown water tank.

Running water pipe joins with the waterpipe import 33 that is communicated with of fume afterheat switch 31, and running water enters in the tank 2 from running water outlet 35 after preheating.In the present embodiment, employed in fume afterheat switch 31 is tubulation 32, and obviously, also available coil pipe of tubulation 32 or coiled pipe replace.When separately using burner 4 heat supplies, open before the burner 4, should open air-introduced machine 72 earlier, again solar switch 36 and pump inlet switch 51 are closed, to separate and the getting in touch of solar energy heat absorbing device matrix 11; Certainly, close solar energy hot gas circulating pump 5 this moment; Open solar energy waste heat air bleeding valve 15 simultaneously, discharge the hot gas in the solar energy heat absorbing device 1, make hot gas in the solar energy heat absorbing device 1 to discharge and produce explosion, guaranteed the security of solar energy heat absorbing device 1 with the irradiation that prevents the sun.

Form solar energy equipment matrix 11 by several solar energy heat absorbing devices 1 and accept solar light irradiation, obtain thermal field, under the powered of solar energy hot gas circulating pump 5, air in the solar energy heat absorbing device in the labyrinth flow-path forms thermal current, enter solar energy radiation parts 37 through solar energy air inlet pipe 54, solar energy radiation parts 37 are made up of several thin tracheaes 38 that are arranged in parallel, thin tracheae 38 1 ends and solar energy house steward 39 are joined, the other end and described hot gas road 46 join, when using solar energy, after the solar heat air enters hot gas road 46, opposite direction along arrow shown in the figure enters combustion chamber 42, enter solar energy circulating pump 5 through solar energy outlet 56 discharges or through solar energy outlet Thermal packer 52 and pump inlet switch 51 again, enter solar energy matrix 11 through circulating-pump outlet switch 53 again.In solar energy matrix 11 lower ends matrix blowoff valve 12 is arranged, but matrix blowoff valve 12 except that blowdown, it also has the another one effect, that is exactly when having a power failure, and under the situation of sun insolation, must open this valve, in case solar energy heat absorbing device 1 is subjected to thermal spalling; Solar energy outlet Thermal packer 52 is arranged between solar energy outlet 56 and pump inlet switch 51.

Four jiaos at above-mentioned hydrothermal exchange device 3 respectively have an adjustable feet 8, be used to regulate the height of hydrothermal exchange device 3 in tank 2, guaranteeing that the water levels in the tank 2 are no more than the height of water proof case 42, in order to avoid burner 4 water inlets, and can not strike sparks.When using solar energy heat absorbing device 1 separately, then must close smoke exhaust pipe valve 71, prevent that the solar heat air is from 71 discharges of smoke exhaust pipe valve.

Above-mentioned solar energy import Thermal packer 34 and solar energy outlet Thermal packer 52 all are the earthenwares by ceramic making, and it both can be ventilated, and also solar energy air inlet pipe leading portion heat can be transmitted with hot transmission of solar energy air inlet pipe latter end to separate; The heat transmission of the air inlet segment pipe of combustion chamber 42 associated conduit and solar energy waste heat absorption plant 100 separates, and avoids scattering and disappearing of heat.

Export 56 places at solar energy and further be provided with solar energy waste heat absorption plant 100, further be used to export the heat at 56 places, the water that enters in the tank is carried out preheating, make full use of the energy of the sun from solar energy.As Fig. 1, shown in Figure 9, be solar energy waste heat absorption plant 100 schematic diagrames, it comprises the shell body 101 of hollow.Be provided with surge chamber 102 in the top of shell body 101 section and end section, be used for the buffering of air.Be provided with the waste hot air inlet tube 103 that is communicated with the solar energy outlet at the top of shell body 101,103 outlets of waste hot air inlet tube are linked into the surge chamber 102 of top section.Shell body 101 is pushing up formation and the water layer 104 that surge chamber 102 completely cuts off between section and the end section surge chamber 102, is arranged with a plurality of interior heat absorption airducts 108 in this water layer 104, and interior heat absorption airduct 108 is communicated with the surge chamber 102 that pushes up section and end section respectively; The surge chamber 102 of end section is connected with pump inlet switch 51 by feedback airduct 105, thereby enters solar energy heat absorbing device 1 through the air of interior heat absorption airduct 108 once more under the drive of solar energy hot gas circulating pump 5.The feed-water intake 106 of water layer 104 is arranged on the end section of shell body 101, and the top section of being arranged on shell body 101 for water out 107, thereby water overflows from the bottom up, and having guaranteed has water all the time in the water layer 104.Be connected to the connection waterpipe import 33 of fume afterheat switch for water out 107.For the contact area of the water in heat absorption airduct 108 in increasing and the water layer 104, interior heat absorption airduct 108 is provided with auxiliary heat absorbing sheet 109, and this auxiliary heat absorbing sheet 109 can or can increase other arbitrary forms of area for row sheet, snakelike; In in the heat absorption airduct 108 the tube wall of hot gas by interior heat absorption airduct 108 with and auxiliary heat absorbing sheet 109 carry out heat exchange with water in the water layer 104.

Often the air that exports out from solar energy has certain heat (hot gas), therefore, when this hot gas enters into surge chamber 102 from waste hot air inlet tube 103, and heat absorption airduct 108 in entering into, at this moment, water in interior heat absorption airduct 108 and the water layer 104 carries out heat exchange, plays the effect of preheating feedwater.Carry out heat-exchanged air being sent to the solar energy heat absorbing device, carry out heat cycles once more by solar energy hot gas circulating pump 5.Make full use of the heat of solar energy, improved operating efficiency.

See also Fig. 3 to Fig. 5, Fig. 3 is the A-A cross-sectional schematic among Fig. 2; From figure as can be seen, water pipe 43 arranging in the passage of heat 46; Fig. 4 looks schematic diagram for master embodiment illustrated in fig. 2; Fig. 5 is a schematic rear view embodiment illustrated in fig. 2; From Fig. 4 and Fig. 5 as can be known, the relation of the position between above-mentioned water proof case 41, burner 4 and the combustion chamber 42.

See also Fig. 6, Fig. 6 looks schematic diagram for the right side embodiment illustrated in fig. 2; From figure as can be known, solar energy radiation parts 37 comprise thin tracheae 38, solar energy house steward 39; Thin tracheae 38 1 ends and solar energy house steward 39 are joined, and the other end and hot gas road 46 join, and hot gas road 46 joins with thick tracheae 9 again, are furnished with several pieces heat-dissipating fins 55 on thick tracheae 9; Described heat-dissipating fin 55 is that dislocation is arranged.

See also Fig. 7, Fig. 7 looks schematic diagram for a left side embodiment illustrated in fig. 2; From scheming the relation of the position between the fire tube 44 and return duct 45 as can be known.

See also Fig. 1, Figure 10, Figure 11.Figure 10 is a unit of solar energy heat absorbing device matrix 11 of the present invention, the i.e. floor map of a solar energy heat absorbing device 1.This each solar energy heat absorbing device 1 is served as reasons and is gone up metallic plate 16, metallic plate 17 and the dull and stereotyped box solar energy heat absorbing device that surrounds of metallic plate 18 all around down, and is welded with the wind isolation board 19 that dislocation is arranged within it, forms labyrinth runner.The two ends of runner form the input port and the delivery outlet of air, after air enters labyrinth runner, can reduce the flowing velocity of air at casing, and increase the contact area of air and casing greatly, reach the effect that gross area absorbs solar energy.A plurality of solar energy heat absorbing devices 1 join end to end and can form solar energy heat absorbing device matrix 11.As shown in figure 12, be the schematic diagram of the another kind of arrangement mode of wind isolation board 19.

As shown in figure 11, further,, solar energy heat absorbing device 1 is positioned in the casing 200 in order to be incubated and blocks dust.The top cover of this casing 200 is a flint glass cover plate 201, is compressed on the open side of casing 200 by connector, plays the effect of printing opacity heat transfer, insulation, blocks dust.Casing 200 bottoms are provided with heat insulation backing plate 202 (for example wooden pallet etc.), following metallic plate 17 is fixed on the heat insulation backing plate 202, dissipate thereby avoid heat that solar energy heat absorbing device 1 absorbs to be delivered on the base plate of casing 200 by metallic plate 17 down easily, guaranteed the utilization ratio of solar energy effectively.Metallic plate 18 does not contact with the sidewall of casing 200 or opens by heat insulation backing plate pad around the solar energy heat absorbing device 1, thereby avoids scattering and disappearing of heat.

Understandable, can wrap up insulation material on the shell of all solar heat air transmission pipelines, thereby reduce the outside distribution loss of heat, improve heat exchanger effectiveness.

The hydrothermal exchange system of above-mentioned solar energy and fuel oil, gas heat energy alternate application can select solar energy and fuel oil, air burner to select a job as required.

When 4 work of fuel oil/air burner, close the communication passage of the smoke discharging pipe of solar energy heat absorbing device 1 and hydrothermal exchange device 3, be about to solar switch 36, pump inlet switch 51 and solar energy circulating pump 5 and close; Open smoke exhaust pipe valve 71, opened smoke-discharging air-introduced machine 72 this moment, the waste gas that 4 burnings of fuel oil/air burner produce is discharged filtration by filter.And, the solar energy waste heat air bleeding valve 15 of unlatching solar energy heat absorbing device 1, open solar energy waste heat blast pipe 14.The work of burner 4 can provide the power supply of need of work and oil gas etc. by power supply, oil, source of the gas etc.

When 1 work of solar energy heat absorbing device, close the communication passage of fuel oil/air burner 4 and hydrothermal exchange device 3; Close smoke exhaust pipe valve 71, close solar energy waste heat discharge valve 15, close air-introduced machine 72, close burner 4, open solar switch 36, ON cycle pump inlet switch 51 and open solar energy hot gas circulating pump 5.Air enters into solar energy heat absorbing device 1 under the promotion of solar energy hot gas circulating pump 5, under the irradiation of the sun, heat up, absorb the heat energy of solar energy, thereby form the hot gas with uniform temperature, the hot gas of formation enters into hydrothermal exchange device 3 by solar energy threeway 13, solar switch 36 etc. and carries out heat exchange; And absorb the waste heat of the hot gas of process hydrothermal exchange device 3 by solar energy waste heat absorption plant 100; Close the solar energy waste heat blast pipe 14 of solar energy heat absorbing device 1 this moment, avoids the scattering and disappearing of hot-air of solar energy heat absorbing device.

Claims (10)

1, the hydrothermal exchange system of a kind of solar energy and fuel oil, gas heat energy alternate application comprises solar energy heat absorbing device, fuel oil/air burner, combustion chamber, hydrothermal exchange device and tank; Described hydrothermal exchange device and described combustion chamber are contained in the described tank, and on described combustion chamber, be provided with the water proof case that communicates with it, described burner is contained in the described water proof case, described hydrothermal exchange device serial connection is between described solar energy heat absorbing device and described combustion chamber, it is characterized in that: this system also comprises solar energy waste heat absorption plant, is used to absorb the waste heat of the hot gas of the described solar energy heat absorbing device generation of passing through described hydrothermal exchange device.

2, the hydrothermal exchange system of solar energy according to claim 1 and fuel oil, gas heat energy alternate application, it is characterized in that: described solar energy waste heat absorption plant comprises the shell body of hollow, is provided with the waste hot air inlet tube of the hot gas of the described solar energy heat absorbing device generation that inserts described hydrothermal exchange device on described shell body; In described shell body, be provided with the heat absorption airduct that is communicated with the waste hot air inlet tube; Be provided with the feedback airduct that is communicated with and is communicated to described solar energy heat absorbing device with described heat absorption airduct in the bottom of described shell body;

Form water layer around the inherent described heat absorption airduct of described shell body, also be provided with the feed-water intake that is communicated with described water layer on the described shell body and give water out.

3, the hydrothermal exchange system of solar energy according to claim 2 and fuel oil, gas heat energy alternate application, it is characterized in that: the outer wall of described heat absorption airduct is provided with auxiliary heat absorbing sheet.

4, the hydrothermal exchange system of solar energy according to claim 2 and fuel oil, gas heat energy alternate application, it is characterized in that: the top section of described shell body and end section are respectively equipped with the surge chamber that is communicated with described heat absorption airduct; Described waste hot air inlet tube outlet is linked into the surge chamber of described top section; The surge chamber of section of the described end is communicated with described feedback airduct.

5, according to the hydrothermal exchange system of each described solar energy and fuel oil, gas heat energy alternate application among the claim 1-4, it is characterized in that: this system also comprises filter, the waste gas that produces when being used to filter from described fuel oil/air burner running.

6, the hydrothermal exchange system of solar energy according to claim 5 and fuel oil, gas heat energy alternate application, it is characterized in that: this system also comprises the fume afterheat switch that is communicated with described combustion chamber;

Described filter comprises smoke discharging pipe and blowdown water tank; Described smoke discharging pipe inlet is communicated with described fume afterheat switch introduces waste gas, and the outlet of described smoke discharging pipe is inserted in the described blowdown water tank.

7, the hydrothermal exchange system of solar energy according to claim 5 and fuel oil, gas heat energy alternate application is characterized in that: a plurality of described solar energy heat absorbing devices are formed solar energy heat absorbing device matrix;

Each solar energy heat absorbing device comprises metallic plate, down metallic plate and the dull and stereotyped casing that surrounds of metallic plate all around; And in described dull and stereotyped casing, be provided with the wind isolation board that dislocation is arranged, form labyrinth runner.

8, according to the hydrothermal exchange system of the described solar energy of claim 7 claim and fuel oil, gas heat energy alternate application, it is characterized in that: the described outside of going up metallic plate is equipped with the flint glass cover plate.

9, the hydrothermal exchange system of solar energy according to claim 8 and fuel oil, gas heat energy alternate application is characterized in that: described metallic plate inboard down is provided with heat insulation backing plate, and described heat insulation backing plate separates described metallic plate and wind isolation board down.

10, the method for a kind of solar energy and fuel oil, gas heat energy alternate application is characterized in that, may further comprise the steps:

When fuel oil/air burner is worked, close the communication passage of the smoke discharging pipe of solar energy heat absorbing device and hydrothermal exchange device, and open smoke exhaust pipe valve, opened smoke-discharging air-introduced machine, open burner operation, and the waste gas that described fuel oil/air burner burns is filtered the back by filter discharge, open the solar energy waste heat blast pipe of solar energy heat absorbing device this moment;

When described solar energy heat absorbing device is worked, close the communication passage of described fuel oil/air burner and described hydrothermal exchange device; Close smoke exhaust pipe valve, solar energy waste heat blast pipe, smoke evacuation air-introduced machine and burner, open solar switch, solar energy hot gas circulating pump and switch thereof, and by the waste heat of solar energy waste heat absorption plant absorption through the hot gas of the described solar energy heat absorbing device generation of described hydrothermal exchange device.

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