CN103727518A - Thermodynamic system and method with mixed application of solar energy and fuel oil gas boiler - Google Patents
Thermodynamic system and method with mixed application of solar energy and fuel oil gas boiler Download PDFInfo
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- CN103727518A CN103727518A CN201310750122.8A CN201310750122A CN103727518A CN 103727518 A CN103727518 A CN 103727518A CN 201310750122 A CN201310750122 A CN 201310750122A CN 103727518 A CN103727518 A CN 103727518A
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention relates to a thermodynamic system and method with the mixed application of the solar energy and a fuel oil gas boiler. The system comprises a solar heating device, a water-steam separator and the fuel oil gas boiler. The solar heating device comprises a water inlet and a water outlet which is connected with the water-steam separator. The fuel oil gas boiler comprises a boiler inner cavity, a combustor arranged in the inner cavity of the boiler, a steam conveying pipe arranged on the upper portion of the inner cavity of the boiler and a heat exchanging coil which is arranged in the inner cavity of the boiler. The inner cavity of the boiler comprises a water storage layer and a steam layer which is arranged above the water storage layer and communicated with the steam conveying pipe. The outlet of the heat exchanging coil is communicated with the water inlet of the solar heating device through a circulation pipe, and the circulation pipe is provided with a circulation pump. The lower portion of the water-steam separator is provided with a communicating pipe communicated with the heat exchanging coil. Due to the fact that the solar heating device and the fuel oil gas boiler are used in cooperation, the requirements for supplying steam and hot water are achieved, the fuel oil is reduced, and the thermodynamic system has the advantages of fully utilizing the solar energy, saving energy and reducing emissions.
Description
Technical field
The present invention relates to a kind of heat supply therrmodynamic system, especially a kind of heat energy that both can utilize solar energy, can utilize again burner as the solar energy of thermal source, to mix therrmodynamic system and the method for application with Methods of Oil-Gas Fired Boiler.
Background technology
Hydro-thermal steam is industrial heat resources and the working media of commonly using the most, and its application is very extensive.Wherein, steam can be for kitchen boiling, various occasions such as steam for industrial production; Hot water can be for occasions such as heating, industrial hot water, shower application.
During traditional steam generation, rely on fire coal or Methods of Oil-Gas Fired Boiler, because fire coal boiler fume discharge is serious to air pollution, forbidden at large.Because the disposal of pollutants of Methods of Oil-Gas Fired Boiler is less, replacement progressively coal-burning boiler.Yet the use cost of Methods of Oil-Gas Fired Boiler is more much higher than coal-burning boiler, gives and use enterprise to increase use cost.
And solar energy is a kind of inexhaustible, nexhaustible energy; and the technology comparative maturity of solar water heating system; how solar water heating system and Methods of Oil-Gas Fired Boiler can be combined, by contributing to reduce the use cost of steam, hot water, to be conducive to again protection of the environment.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of therrmodynamic system and the method that can utilize solar energy heating, mix application, reduction oil consumption in conjunction with Methods of Oil-Gas Fired Boiler.
The technical scheme that the present invention solves its technical problem employing is: a kind of solar energy mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, comprise solar heat collector, steam trap and Methods of Oil-Gas Fired Boiler;
The delivery port that described solar heat collector includes the mouth of a river and is connected with described steam trap;
Described Methods of Oil-Gas Fired Boiler comprises boiler intracavity, the combustor in described boiler intracavity setting, the steam pipeline arranging on described boiler intracavity top and the heat exchange coil arranging in described boiler intracavity; Described boiler intracavity comprises that the described heat exchange coil of confession is soaked in reservoir bed wherein and the vapor film being communicated with described steam pipeline is set above described reservoir bed; The outlet of described heat exchange coil is communicated to the water inlet of described solar heat collector by circulation pipe, and is provided with circulating pump on this circulation pipe;
The bottom of described steam trap is provided with the communicating pipe that is communicated to described heat exchange coil.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, the top of described steam trap is provided with the steam output pipe of the vapor film that is communicated to described boiler intracavity, and described steam output pipe is provided with steam delivery valve group.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, the bottom of described steam trap is also provided with boiler to hot-water line, is communicated to the reservoir bed of the boiler intracavity bottom of described Methods of Oil-Gas Fired Boiler; At described boiler, be provided with boiler feed valve on to hot-water line.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, the bottom of described steam trap is also provided with hot water supply pipe, is provided with hot water supply valve group on hot water supply pipe;
Described therrmodynamic system also comprises the boiler being connected with described hot water supply pipe; The bottom of described boiler is also connected with hot water outlet pipe, is connected to the water outlet side of described circulating pump; Described hot water outlet pipe is provided with hot water effluent's valve.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, described therrmodynamic system also comprises head-tank, and described head-tank is connected with the water inlet of described solar heat collector by solar energy water inlet pipe; Described solar energy water inlet pipe is provided with solar water supply valve group;
Described therrmodynamic system also comprises the waste heat recovery plant that running water is carried out to preheating, and described waste heat recovery plant is connected with described head-tank by head-tank water supply line, and is provided with running water extra-feed valve group on described head-tank water supply line.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, the combustor of described Methods of Oil-Gas Fired Boiler is connected with smoke discharge pipe, and described smoke discharge pipe is connected with flue gas waste heat recovery apparatus;
Described waste heat recovery plant is connected with described flue gas waste heat recovery apparatus by boiler feedwater pipeline, and is provided with boiler feedwater valve group on described boiler feedwater pipeline.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, described therrmodynamic system also comprises the filtrating equipment of flue gas being connected with described flue gas waste heat recovery apparatus;
Described filtrating equipment of flue gas is linked to be by least two little casees, and each little case has the access ramp of upper and lower opening, and is provided with partition panel between described little case, and flue gas can only be flowed in access ramp; Lower end at described partition panel is provided with intercommunicating pore;
The bottom of described filtrating equipment of flue gas is also provided with draining valve.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler in the therrmodynamic system of application, on the pipeline being connected with filtrating equipment of flue gas at described flue gas waste heat recovery apparatus, be provided with air-introduced machine.
The present invention also provides a kind of solar energy to mix the method for application with Methods of Oil-Gas Fired Boiler, at least comprises cycle heat exchange pattern, and described cycle heat exchange pattern comprises the following steps:
S1: at the boiler intracavity injected water of Methods of Oil-Gas Fired Boiler;
S2: heat and obtain hot water by solar heat collector, export steam trap to, then, by communicating pipe exporting hot water to heat exchange coil in described Methods of Oil-Gas Fired Boiler, water by described heat exchange coil and boiler intracavity carries out heat exchange, the water of boiler intracavity described in preheating;
Meanwhile, open circulating pump, under the effect of circulating pump, the hot water in described heat exchange coil reenters described solar heat collector through circulation pipe and heats, and operation, exchanges the water to boiler intracavity by solar thermal energy again and again;
S3: open the combustor of described Methods of Oil-Gas Fired Boiler, the hot water of increasing boiler intracavity heats up and produces steam.
In method of the present invention, described method also comprises that solar energy supplies steam pattern and supplies respectively steam pattern for steam pattern, boiler;
At described solar energy, supply, in steam pattern, to close described circulating pump, by described solar heat collector heating, produce hot water and steam, export described steam trap to; Open steam delivery valve group, the steam of described steam trap exports the boiler intracavity of described Methods of Oil-Gas Fired Boiler to, output steam;
At described boiler, supply in steam pattern, close described circulating pump and described steam delivery valve group, running water is after waste heat recovery plant, through opening boiler feedwater valve group, running water after preheating enters into flue gas waste heat recovery apparatus through boiler feedwater pipeline, absorb after the heat of flue gas, then enter into the boiler intracavity of described Methods of Oil-Gas Fired Boiler; Meanwhile, open the combustor of described Methods of Oil-Gas Fired Boiler, the water of boiler intracavity is heated, to produce steam;
Described, supply respectively in steam pattern, close described circulating pump and described steam delivery valve group, by described solar heat collector heating, produce hot water and steam, export described steam trap to, open the steam exhaust-gas valve group output steam of described steam trap; Simultaneously, running water is after described waste heat recovery plant, and through opening described boiler feedwater valve group, the running water after preheating enters into flue gas waste heat recovery apparatus through described boiler feedwater pipeline, absorb after the heat of flue gas, then enter into the boiler intracavity of described Methods of Oil-Gas Fired Boiler; Meanwhile, open the combustor of described Methods of Oil-Gas Fired Boiler, the water of boiler intracavity is heated, to produce steam.
The present invention is used in conjunction with by solar heat collector and Methods of Oil-Gas Fired Boiler, and to reach the supply requirement of steam, hot water, the fuel oil that has reduced Methods of Oil-Gas Fired Boiler is used, and has advantages of the energy, the energy-saving and emission-reduction that make full use of solar energy.
Further, the present invention can also reclaim the heat energy of the flue gas of Methods of Oil-Gas Fired Boiler by flue gas waste heat recovery apparatus, utilized fully heat energy, has avoided the loss of used heat, has improved efficiency.
Further, the flue gas that filtrating equipment of flue gas carrys out the discharge of filter fuel gas boiler can also be set, avoid the direct discharge of flue gas, the pollution to environment, has advantages of environmental protection.
Accompanying drawing explanation
Fig. 1: solar energy of the present invention mixes the structural representation of a kind of embodiment of therrmodynamic system of application with Methods of Oil-Gas Fired Boiler;
Fig. 2: be the cross-sectional schematic of the filtrating equipment of flue gas in Fig. 1;
Fig. 3: be the schematic diagram of solar energy for the work of steam mode electrically;
Fig. 4: be the schematic diagram of solar energy for steam pattern manual work;
Fig. 5: be the schematic diagram of cycle heat exchange pattern;
Fig. 6: be the schematic diagram of boiler for steam mould;
Fig. 7: for supplying respectively the schematic diagram of steam pattern.
The specific embodiment
For embodiments of the present invention are clearly described, existing that one, the work of legend shown in figure is in a word bright:
Solar heat collector ... 1 steam trap ... 2
Steam output pipe ... 21 boilers are to hot-water line ... 22 boiler feed valves ... 23
Hot water supply pipe ... 24 communicating pipes ... 25
Methods of Oil-Gas Fired Boiler ... 3 boiler intracavities ... 31 combustors ... 32
Smoke discharge pipe ... 33 steam pipelines ... 34 heat exchange coils ... 35
Boiler ... 4 hot water outlet pipes ... 41 hot water effluent's valves ... 42
Heat supply water valve ... 43
Head-tank ... 5 water level controllers ... 51
Flue gas waste heat recovery apparatus ... 6 filtrating equipment of flue gas ... 7
Access ramp ... 71 partition panels ... 72 intercommunicating pores ... 73
Draining valve ... 74
Waste heat recovery plant ... 8 circulating pumps ... 9 air-introduced machines ... 10
Running water make-up water motor-driven valve ... A1 running water make-up water hand-operated valve ... A2
Boiler feedwater motor-driven valve ... B1 boiler feedwater hand-operated valve ... B2
Solar water supply motor-driven valve ... C1 solar water supply hand-operated valve ... C2
Steam output motor-driven valve ... D1 steam output hand-operated valve ... D2
Hot water supply motor-driven valve ... E1 hot water supply hand-operated valve ... E2
As shown in Figure 1, be that a kind of solar energy of the present invention mixes the therrmodynamic system of application and a specific embodiment of method with Methods of Oil-Gas Fired Boiler, comprise solar heat collector 1, steam trap 2, Methods of Oil-Gas Fired Boiler 3, boiler 4, head-tank 5, flue gas waste heat recovery apparatus 6, filtrating equipment of flue gas 7, running water waste heat recovery plant 8 and pipeline, the valve arranging that the said equipment is connected on pipeline, control the control device of above-mentioned valve and Methods of Oil-Gas Fired Boiler 3 switchings etc.
The water source of this system can be supplied with by running water, and it is that head-tank 5 supplies water by head-tank 5 water supply lines again that running water is undertaken after preheating by waste heat recovery plant 8, or, by boiler feedwater pipeline, be that boiler intracavity 31 supplies water.On head-tank 5 water supply lines, be provided with running water extra-feed valve group, this running water extra-feed valve group comprises running water make-up water motor-driven valve A1 and running water make-up water hand-operated valve A2, to realize automatic or manual switch head-tank 5 water supply lines.On boiler feedwater pipeline, be provided with boiler feedwater valve group, this boiler feedwater valve group comprises boiler feedwater motor-driven valve B1, boiler feedwater hand-operated valve B2, to realize automatic or manual switch boiler feedwater pipeline.The structure of this waste heat recovery plant 8 can adopt existing various waste heat recovery plant 8, and as disclosed in No. 200910109406.2nd, Chinese patent, therefore not to repeat here.
This head-tank 5 can be arranged on a high position, thereby can utilize gravity water supply.The pond water inlet of head-tank 5 is connected with head-tank 5 water supply lines, running water with access through preheating, and pond outlet is connected to the water inlet of solar heat collector 1 by solar energy water inlet pipe, and solar water supply valve group is set on solar energy water inlet pipe, this solar water supply valve group comprises solar water supply motor-driven valve C1, solar water supply hand-operated valve C2, to realize automatic or manual, opens and closes solar energy water inlet pipe.
Understandable, this head-tank 5 can also be provided with water level controller 51, by water level controller 51, carry out the water level of sensing head-tank 5, and then control the running water make-up water motor-driven valve A1 switching of running water extra-feed valve group, guarantee that the water level of head-tank 5 keeps in place.
In the present embodiment, this solar heat collector 1 comprises the water inlet being connected with water source, the delivery port being connected with steam trap 2, can adopt the various solar heat collectors 1 such as groove type line-focusing heat collector, Fresnel line focus heat collector, flat-plate solar collector.Understandable, solar heat collector 1 can comprise a plurality of, and parallel connection, series connection or series and parallel mix setting, and its quantity is adjusted as required.Can inhale collection in the scope of solar heat energy ceiling temperature restriction, the solar heat collector 1 unit component units group of series connection, every group of series connection quantity is more, and the Temperature of Working of the solar energy that suction collection arrives is higher; And the quantity of unit group in parallel is more, the capacity of the working medium of its heating is just larger.
These steam trap 2 bottoms are provided with boiler to hot-water line 22, are communicated to the reservoir bed of boiler intracavity 31 bottoms of Methods of Oil-Gas Fired Boiler 3, and the hot water through solar heat collector 1 heating can be provided for the boiler intracavity 31 of Methods of Oil-Gas Fired Boiler 3.At this boiler, be provided with boiler feed valve 23 on to hot-water line 22, by this boiler feed valve 23, control to the boiler intracavity 31 of boiler moisturizing is provided.In the present embodiment, this boiler feed valve 23 is electrically operated valve; Can certainly use manually-operated gate or both to use simultaneously.
Bottom at steam trap 2 is also provided with hot water supply pipe 24, is provided with hot water supply valve group on hot water supply pipe 24.This hot water supply valve group comprises hot water supply motor-driven valve E1 and hot water supply hand-operated valve E2, by the switching of heat supply water valve 43, provides industrial hot water.
Further, between steam trap 2 bottoms and the heat exchange coil 35 of Methods of Oil-Gas Fired Boiler 3 boiler intracavities 31, be provided with communicating pipe 25, to export the hot water in steam trap 2 to heat exchange coil 35.In addition, there is no the sun, solar heat collector 1 does not operate, during Methods of Oil-Gas Fired Boiler 3 burning operation, the heat exchange coil 35 of boiler intracavity 31 is heated, and internal pressure increases, can pressure be discharged to steam trap 2 by this communicating pipe 25, and during the pressure superpressure in steam trap 2, can to place, discharge by spring full open safety valve or other electrohydraulic pressure control safety valves of steam trap 2, avoided the damage of heat exchange coil 35.Certainly, conventional steam trap 2 itself, with spring full open safety valve and automatically controlled safety valve, therefore can not damage because of the increase of pressure.If solar heat collector 1 and Methods of Oil-Gas Fired Boiler 3 move simultaneously, communicating pipes 25 pressure of both sides also can balance, can not produce harm.
Further, on this steam trap 2, be also provided with water level controller, temperature controller etc.This water level controller, for monitoring the water layer height of steam trap 2, to control hot water supply valve group, to a certain amount of hot water of boiler 4 excretion, avoids the water layer of steam trap 2 too high.
Whether this temperature controller reaches boiling water to the critical condition of steam for the water temperature of monitoring in steam trap 2, and then controls the work of each valve group, circulating pump 9 etc., and then switched system is in different operating modes, starts the effect of automatic regulating system.
Bottom at steam trap 2 is connected with boiler 4 by hot water supply pipe 24, and this boiler 4 can provide hot water or for heating, shower provides hot water for industrial heat by heat supply water valve 43.The hot water of boiler 4 further, in the bottom of boiler 4, can also be connected with hot water outlet pipe 41, be connected to the water outlet side of circulating pump 9, so that can participate in circulating-heating.On this hot water outlet pipe 41, can also be provided with hot water effluent's valve 42, to control the hot water of boiler 4, whether participate in circulating-heating.Hot water effluent's valve 42 can be controlled by the water level controller of steam trap 2, when water level is not enough, opens hot water effluent's valve 42.
When the sun is at times strong and at other times weak, solar heat collector is sent heat energy here, the water in boiler is heated to always to the limit high temperature of solar energy heating from initial temperature, and 20 ℃-60 ℃, or 20 ℃-N degree (wherein, N is lower than 100).When solar heat collector has been heated to limiting temperature and is also not enough to produce steam, restart boiler combustion machine the water in boiler is carried out to supplementary heating, realized and used solar thermal energy as far as possible, reduced the energy-conservation object that fossil energy is used.
This Methods of Oil-Gas Fired Boiler 3 is connected with steam trap 2, includes boiler intracavity 31, the combustor 32 in boiler intracavity 31 bottom burner settings, the smoke discharge pipe 33 being connected with combustor 32, the steam pipeline 34 on flue top that is arranged on boiler intracavity 31 and the heat exchange coil 35 of setting in boiler intracavity 31.This combustor 32 can comprise large firelock, little firelock etc., and the burner of corresponding power can be set certainly as required.
This boiler intracavity 31 comprises reservoir bed and the vapor film above reservoir bed, for this reason, is also provided with water level controller in boiler intracavity 31, to avoid the water level of boiler intracavity 31 too high or too low.This heat exchange coil 35 is arranged in reservoir bed, thus can with reservoir bed in water carry out heat exchange; And steam pipeline 34 is connected with vapor film, the steam that externally provides boiling or other occasions to need.The outlet of this heat exchange coil 35 is communicated to the water inlet of solar heat collector 1 by circulation pipe, and on this circulation pipe, is provided with circulating pump 9, to the water after heat exchange is delivered to solar heat collector 1 again, heats.Meanwhile, the boiler of steam trap 2 to hot-water line 22 be communicated to reservoir bed, steam output pipe 21 is communicated to vapor film.
The smoke discharge pipe 33 of Methods of Oil-Gas Fired Boiler 3 is connected to flue gas waste heat recovery apparatus 6, utilizes the waste heat of flue gas to add the water supply of hot tap-water, makes the glassware for drinking water that enters boiler intracavity 31 have certain temperature, reduces the burning of combustor 32.Wherein, running water is connected to flue gas waste heat recovery apparatus 6 by boiler water supply pipe, and controls feedwater by controlling boiler feedwater valve group.The structure of this flue gas waste heat recovery apparatus 6 can adopt existing various waste-heat recovery device, and as No. 200910109406.2nd, Chinese patent, therefore not to repeat here.
Flue gas through flue gas waste heat recovery apparatus 6 is introduced filtrating equipment of flue gas 7 by air-introduced machine 10, after filtering, is disposed to atmosphere again, thereby reduces the pollution to atmosphere.This filtrating equipment of flue gas 7 is multistage filtering case, as shown in Figure 2, by two, three or more little case, is linked to be, and by cover encloses.Between upper cover and casing, be provided with sealing ring, to play leakproof, sealing function.Each little case has the access ramp 71 of upper and lower opening, and between little case, is provided with partition panel 72, and flue gas can only be flowed access ramp 71 is interior.
Further, the lower end of partition panel 72 is provided with intercommunicating pore 73, so that smoke filtration liquid communicates between little case, and then obtains liquid level equilibrium.The upper cover of each little case can be fixed by screw, thereby conveniently pull down, cleans flue dust, sediment etc.
Bottom at this filtrating equipment of flue gas 7 is also provided with draining valve, by this draining valve, regulates the liquid height in filtrating equipment of flue gas, can adjust hydraulic pressure, and then adjusts flue gas discharge pressure, avoids liquid too many, the defect that causes flue gas to discharge.
During work, flue gas is under two kinds of Wind power propellings of air-introduced machine 10 and combustor operation, access ramp 71 upper sheds that enter the little case of the first order from entrance enter, along access ramp 71, enter in filtered fluid, continuous and break through the hydraulic pressure of filtered fluid, come up (particulates emission of flue gas is absorbed step by step in the filtered fluid of several little casees).Due to air-introduced machine 10 operation blasting actions, flue gas enters second and third access ramp 71 continuously, and in having and continuous filtration in flue dust (alkalescence or other chemical substances) filtered fluid, reaching flue gas after purification filters little case upper shed in final stage and is discharged into the external world, guaranteed the oil gas flue dust in effective filtration flue gas, more environmental protection.
This control device comprises the water level controller that water level controller, temperature controller, head-tank 5 that steam trap 2 arranges arrange, the water level controller of boiler intracavity 31 etc., realizes the automatic switchover of each operating mode of system by this control device.Certainly, also can be according to the monitored data of water level controller, temperature controller etc., by manually switching.
Understandable, the boiler intracavity 31 of head-tank 5, boiler 4, Methods of Oil-Gas Fired Boiler 3 etc. is all provided with permeability cell, to avoid forming the phenomenons such as vent plug.Each pipeline, casing, container etc., can also arrange blowoff valve, so that blowdown is cleaned.And, can non-return valve be set in the appropriate position of individual connecting line, to prevent the reverse flow of water stream.
At solar energy of the present invention, mix with Methods of Oil-Gas Fired Boiler 3 in the therrmodynamic system of application, its water source can be from running water.The water outlet of running water is delivered to waste heat recovery plant 8 through check valve, by 8 pairs of running water of waste heat recovery plant, carries out preheating, improves temperature; Then by running water extra-feed valve group, be delivered to head-tank 5, keep in.And whether need supplement supply, stable to guarantee the water supply of system if can control running water by the water level controller of head-tank 5.Then, head-tank 5 provides water source by solar water supply valve group for solar heat collector 1.Whether same, can control head-tank 5 by the water level controller of steam trap 2 needs to supplement and supplies with, and continues to heat water supply by solar heat collector 1 guaranteeing.
When using solar energy of the present invention to mix the method for application with Methods of Oil-Gas Fired Boiler 3, at least can comprise that following five kinds are used mode of operation.
As shown in Figure 3, the first is that solar energy supplies steam pattern: while having water to have electricity in sunny, environment place, the effect of Methods of Oil-Gas Fired Boiler 3 is buffers packet effects of steam, and the combustor 32 of Methods of Oil-Gas Fired Boiler 3 is out of service.In this case, can be by the unlatching of electric control valve.
Its water supply route is: running water-check valve-waste heat recovery plant 8-running water make-up water motor-driven valve A1-head-tank 5-solar water supply motor-driven valve C1-solar heat collector 1-steam trap 2-steam output motor-driven valve D1-Methods of Oil-Gas Fired Boiler 3 boiler intracavity 31-steam pipelines 34, and as shown in figure hollow core arrow.Understandable, the switching of these motor-driven valves, can control by control device.
By solar heat collector 1, heated, coolant-temperature gage raises, and exports steam trap 2 to; Whether the temperature controller monitoring water temperature in steam trap 2 reaches boiling water to the critical condition of steam.When the temperature in temperature controller monitors steam trap 2 reaches 100 ℃ (temperature can be set as required certainly) of setting, the steam output motor-driven valve D1 that control device is controlled on steam output pipe 21 opens, and steam trap 2 is the boiling water to the interior delivering vapor critical value of boiler intracavity 31 of Methods of Oil-Gas Fired Boiler 3 by steam output pipe 21.Along with solar heat collector 1 is in continuous heating, water temperature is constantly raise, thereby at the interior continuous generation steam of steam trap 2, and then the interior delivering vapor of boiler intracavity 31 to Methods of Oil-Gas Fired Boiler 3 that can continue, steam pipeline 34 by boiler intracavity 31 is delivered to the place that needs use again, and such as being delivered to, boiling is carried out in kitchen, steam clean etc. is carried out in laundry.
Temperature controller has reached upper limit set value (as 102 ℃ or 103 ℃, can certainly arrange as required higher or lower) time, control device is controlled the loop work while being closed in solar irradiation deficiency, that is: close circulating pump 9, make the hot water of steam trap 2 without carrying out circulating-heating by heat exchange coil 35 again.Now, only need to purely with solar energy, can provide steam.
Understandable, the hot water supply motor-driven valve E1 that also can open as required hot water supply valve group opens, and hot water is provided to boiler 4, for other industrial hot water.
As shown in Figure 4, the second is that solar energy supplies steam pattern: while having water without electricity in sunny, environment place, the effect of Methods of Oil-Gas Fired Boiler 3 is buffers packet effects of steam, and the combustor 32 of Methods of Oil-Gas Fired Boiler 3 is out of service.
Its water supply route is: running water-check valve-waste heat recovery plant 8-running water make-up water hand-operated valve A2-head-tank 5-solar water supply hand-operated valve C2-solar heat collector 1-steam trap 2-steam output hand-operated valve D2-Methods of Oil-Gas Fired Boiler 3 boiler intracavity 31-steam pipelines 34, and as shown in figure hollow core arrow.
By solar heat collector 1, heated, coolant-temperature gage raises, and exports steam trap 2 to; Whether the temperature controller monitoring water temperature in steam trap 2 reaches critical condition.When the temperature in temperature controller monitors steam trap 2 reaches 100 ℃ (temperature can be set as required certainly) of setting, by the steam output hand-operated valve D2 on manual operation steam output pipe 21, open, steam trap 2 is the boiling water to the interior delivering vapor critical value of boiler intracavity 31 of Methods of Oil-Gas Fired Boiler 3 by steam output pipe 21.Along with solar heat collector 1 is in continuous heating, water temperature is constantly raise, thereby at the interior continuous generation steam of steam trap 2, and then the interior delivering vapor of boiler intracavity 31 to Methods of Oil-Gas Fired Boiler 3 that can continue, steam pipeline 34 by boiler intracavity 31 is delivered to the place that needs use again, and such as being delivered to, boiling is carried out in kitchen, steam clean etc. is carried out in laundry.
And owing to there is no supply of electric power, circulating pump 9 cannot be worked, the loop of heat exchange coil 35 is closed automatically, now, only need to purely with solar energy, can provide steam.
Understandable, the hot water supply hand-operated valve E2 that also can open as required hot water supply valve group opens, and hot water is provided to boiler 4, for other industrial hot water.
As shown in Figure 5, the third is cycle heat exchange pattern: while having water to have electricity in sunlight not enough (as winter in spring or season at cloudy day), environment place, solar heat collector 1 cannot heat water to more than 100 ℃, is not enough to produce steam.
When the water of solar heat collector 1 is delivered to steam trap 2 and can not be formed steam, first, control device is controlled boiler and is opened to the boiler feed valve 23 on hot-water line 22, the hot water that steam trap 2 heats through solar heat collector 1 to boiler intracavity 31 supplies to hot-water line 22 by boiler.
Then, close boiler feed valve 23, now, the hot water of steam trap 2 is through entering into the heat exchange coil 35 of boiler intracavity 31 communicating pipe 25, and heat exchange coil 35 carries out heat exchange with the hot water of boiler intracavity 31.Meanwhile, open circulating pump 9, under the effect of circulating pump 9, the hot water of heat exchange coil 35 reenters solar heat collector 1 through circulation pipe and heats, and operation, exchanges the water to boiler intracavity 31 by solar thermal energy, as shown in figure hollow core arrow again and again.
Meanwhile, open the combustor 32 of Methods of Oil-Gas Fired Boiler 3, the hot water of increasing boiler intracavity 31 heats up for steam, for boiling or industrial steam.
When utilizing temperature controller, pressure controller etc., monitoring burning makes the steam supply of boiler intracavity 31 excessive too high, and while being not enough to continue to maintain steam output usefulness by solar heat collector 1 merely, the combustor 32 of Methods of Oil-Gas Fired Boiler 3 is converted to little firelock by large firelock, the heating that burns away, and maintain the steady state of steam output.And work as solar thermal energy, be enough to form sufficient steam, the combustor 32 of Methods of Oil-Gas Fired Boiler 3 is ceased fire, and whole system is carried out work according to the first state, the steam that directly provides solar energy heating to produce.
Wherein, the large firelock of combustor 32, than the twice energy consumption of little firelock, in traditional boiler, no matter the strong and weak value of sunlight is to what degree, as long as solar energy heating can not be sent steam here, all must use large firelock to heat to supply steam to the water of boiler intracavity 31.In the present embodiment, the water by solar heat collector 1 heating to boiler intracavity 31 heats, and changes and uses little firelock to carry out auxiliary heating, has realized and has saved 50% oil consumption.
Further, the water layer that monitors steam trap 2 when the water level controller of steam trap 2 is too high, opens hot water supply valve group, to a certain amount of hot water of boiler 4 excretion.Now, the hot water of boiler 4 can provide industrial hot water; Also can participate in circular water replenishing.
When boiler feed valve 23 is closed, running water extra-feed valve group, solar water supply valve group are also for closed condition, that is to say, solar heat collector 1, steam trap 2, boiler 4, heat exchange coil 35, circulating pump 9, circulation pipe etc. form the pipeline of sealing, and operation water consumption is few.The principle of its moisturizing is: under the operation dynamic action of circulating pump 9, the water of heat exchange coil 35 is inhaled into, and through circulation pipe, pushes to solar heat collector 1; Meanwhile, the hot water of boiler 4 also, under the effect of hydraulic pressure, enters into the water outlet side of circulating pump 9, and the power that is recycled pump 9 pushes to solar heat collector 1, carries out circulating-heating.
As shown in Figure 6, the 4th kind is boiler confession steam pattern: when not having sunlight, environment place to have water to have electricity, only have boiler operatiopn to produce steam, for boiling or industrial steam.
Now, owing to there is no the sun, solar heat collector 1 cannot heat running water, running water is after waste heat recovery plant 8, through opening boiler feedwater valve group (certainly can automatically open boiler feedwater motor-driven valve B1 or manually opened boiler feedwater hand-operated valve B2), running water after preheating enters into flue gas waste heat recovery apparatus 6 through boiler feedwater pipeline, absorbs after the heat of flue gas, then enters into boiler intracavity 31.If figure hollow core arrow is water (flow) direction, filled arrows is flow of flue gas direction.
Meanwhile, open the combustor 32 of Methods of Oil-Gas Fired Boiler 3, the water of boiler intracavity 31 is heated, to produce steam, for boiling, industrial application etc.
As shown in Figure 7, the 5th kind for supplying respectively steam pattern: when sunny, large productions megathermal period with electricity and water again, and should boiling, while providing industrial steam, hot water use again.
The supply of running water is substantially on the basis of the 4th kind of situation, then works in conjunction with amended the first situation simultaneously.This amended the first situation Main change is, closes the steam delivery valve group between steam trap 2 and boiler intracavity 31, and directly the steam exhaust-gas valve group by steam trap 2 externally provides steam; Meanwhile, by boiler 4, directly provide industrial hot water.In the case, can meet Methods of Oil-Gas Fired Boiler 3 simultaneously and produce a large amount of steam, also can utilize solar heat collector 1 that suitable steam, hot water is provided simultaneously, expand prospect of the application.If figure hollow core arrow is water (flow) direction, filled arrows is flow of flue gas direction.
Understandable, by the two temperature controllers of setting of the upper limit in steam trap 2 interior settings, lower limit (as XMT121 type or XMT202 type temperature controller, certainly can select other control systems), water level controller etc., can guarantee a temperature-holding zone in its control at heat (opening) water of setting or steam, automatically open or close above-mentioned all electrically operated valves, thereby the operation of automatically switching under above-mentioned various situation, thereby play the effect of automatic control, energy-saving and emission-reduction.
Claims (10)
1. solar energy mixes a therrmodynamic system for application with Methods of Oil-Gas Fired Boiler, it is characterized in that: comprise solar heat collector, steam trap and Methods of Oil-Gas Fired Boiler;
The delivery port that described solar heat collector includes the mouth of a river and is connected with described steam trap;
Described Methods of Oil-Gas Fired Boiler comprises boiler intracavity, the combustor in described boiler intracavity setting, the steam pipeline arranging on described boiler intracavity top and the heat exchange coil arranging in described boiler intracavity; Described boiler intracavity comprises that the described heat exchange coil of confession is soaked in reservoir bed wherein and the vapor film being communicated with described steam pipeline is set above described reservoir bed; The outlet of described heat exchange coil is communicated to the water inlet of described solar heat collector by circulation pipe, and is provided with circulating pump on this circulation pipe;
The bottom of described steam trap is provided with the communicating pipe that is communicated to described heat exchange coil.
2. solar energy according to claim 1 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: the top of described steam trap is provided with the steam output pipe of the vapor film that is communicated to described boiler intracavity, described steam output pipe is provided with steam delivery valve group.
3. solar energy according to claim 1 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: the bottom of described steam trap is also provided with boiler to hot-water line, is communicated to the reservoir bed of the boiler intracavity bottom of described Methods of Oil-Gas Fired Boiler; At described boiler, be provided with boiler feed valve on to hot-water line.
4. solar energy according to claim 1 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: the bottom of described steam trap is also provided with hot water supply pipe, is provided with hot water supply valve group on hot water supply pipe;
Described therrmodynamic system also comprises the boiler being connected with described hot water supply pipe; The bottom of described boiler is also connected with hot water outlet pipe, is connected to the water outlet side of described circulating pump; Described hot water outlet pipe is provided with hot water effluent's valve.
5. solar energy according to claim 1 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: described therrmodynamic system also comprises head-tank, described head-tank is connected with the water inlet of described solar heat collector by solar energy water inlet pipe; Described solar energy water inlet pipe is provided with solar water supply valve group;
Described therrmodynamic system also comprises the waste heat recovery plant that running water is carried out to preheating, and described waste heat recovery plant is connected with described head-tank by head-tank water supply line, and is provided with running water extra-feed valve group on described head-tank water supply line.
6. solar energy according to claim 5 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: the combustor of described Methods of Oil-Gas Fired Boiler is connected with smoke discharge pipe, and described smoke discharge pipe is connected with flue gas waste heat recovery apparatus;
Described waste heat recovery plant is connected with described flue gas waste heat recovery apparatus by boiler feedwater pipeline, and is provided with boiler feedwater valve group on described boiler feedwater pipeline.
7. solar energy according to claim 6 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: described therrmodynamic system also comprises the filtrating equipment of flue gas being connected with described flue gas waste heat recovery apparatus;
Described filtrating equipment of flue gas is linked to be by least two little casees, and each little case has the access ramp of upper and lower opening, and is provided with partition panel between described little case, and flue gas can only be flowed in access ramp; Lower end at described partition panel is provided with intercommunicating pore;
The bottom of described filtrating equipment of flue gas is also provided with draining valve.
8. solar energy according to claim 7 mixes the therrmodynamic system of application with Methods of Oil-Gas Fired Boiler, it is characterized in that: on the pipeline being connected with filtrating equipment of flue gas at described flue gas waste heat recovery apparatus, be provided with air-introduced machine.
9. solar energy mixes a method for application with Methods of Oil-Gas Fired Boiler, it is characterized in that: at least comprise cycle heat exchange pattern, described cycle heat exchange pattern comprises the following steps:
S1: at the boiler intracavity injected water of Methods of Oil-Gas Fired Boiler;
S2: heat and obtain hot water by solar heat collector, export steam trap to, then, by communicating pipe exporting hot water to heat exchange coil in described Methods of Oil-Gas Fired Boiler, water by described heat exchange coil and boiler intracavity carries out heat exchange, the water of boiler intracavity described in preheating;
Meanwhile, open circulating pump, under the effect of circulating pump, the hot water in described heat exchange coil reenters described solar heat collector through circulation pipe and heats, and operation, exchanges the water to boiler intracavity by solar thermal energy again and again;
S3: open the combustor of described Methods of Oil-Gas Fired Boiler, the hot water of increasing boiler intracavity heats up and produces steam.
10. method according to claim 9, is characterized in that, described method also comprises that solar energy supplies steam pattern and supplies respectively steam pattern for steam pattern, boiler;
At described solar energy, supply, in steam pattern, to close described circulating pump, by described solar heat collector heating, produce hot water and steam, export described steam trap to; Open steam delivery valve group, the steam of described steam trap exports the boiler intracavity of described Methods of Oil-Gas Fired Boiler to, output steam;
At described boiler, supply in steam pattern, close described circulating pump and described steam delivery valve group, running water is after waste heat recovery plant, through opening boiler feedwater valve group, running water after preheating enters into flue gas waste heat recovery apparatus through boiler feedwater pipeline, absorb after the heat of flue gas, then enter into the boiler intracavity of described Methods of Oil-Gas Fired Boiler; Meanwhile, open the combustor of described Methods of Oil-Gas Fired Boiler, the water of boiler intracavity is heated, to produce steam;
Described, supply respectively in steam pattern, close described circulating pump and described steam delivery valve group, by described solar heat collector heating, produce hot water and steam, export described steam trap to, open the steam exhaust-gas valve group output steam of described steam trap; Simultaneously, running water is after described waste heat recovery plant, and through opening described boiler feedwater valve group, the running water after preheating enters into flue gas waste heat recovery apparatus through described boiler feedwater pipeline, absorb after the heat of flue gas, then enter into the boiler intracavity of described Methods of Oil-Gas Fired Boiler; Meanwhile, open the combustor of described Methods of Oil-Gas Fired Boiler, the water of boiler intracavity is heated, to produce steam.
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Effective date of registration: 20200618 Address after: No.3, Dong'an West Road, Luoshe supporting District, Huishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Jingxi Boiler Co., Ltd Address before: 518000, No. 9, Lane 4, three star village, manhole street, manhole street, Baoan District, Guangdong, Shenzhen Patentee before: SHENZHEN QIANGSHUN SOLAR ENERGY Co.,Ltd. |
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