CN105066220A - Solar energy and gas heating hot water furnace complementary heating system - Google Patents
Solar energy and gas heating hot water furnace complementary heating system Download PDFInfo
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- CN105066220A CN105066220A CN201510454927.7A CN201510454927A CN105066220A CN 105066220 A CN105066220 A CN 105066220A CN 201510454927 A CN201510454927 A CN 201510454927A CN 105066220 A CN105066220 A CN 105066220A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 255
- 238000010438 heat treatment Methods 0.000 title claims abstract description 163
- 230000000295 complement effect Effects 0.000 title claims abstract description 16
- 239000008236 heating water Substances 0.000 claims abstract description 101
- 238000005338 heat storage Methods 0.000 claims abstract description 30
- 230000009977 dual effect Effects 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000008400 supply water Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E10/44—Heat exchange systems
Abstract
The invention provides a solar energy and gas heating hot water furnace complementary heating system which comprises a solar heat collection system, a heat storage water tank system, a domestic hot water system and a heating hot water system. A double-coil-pipe heat storage water tank is adopted for the heat storage water tank system. A tank body is internally provided with a lower heat exchange coil pipe and an upper heat exchange coil pipe. A domestic hot water inlet pipe G5 of a gas heating hot water furnace is connected with a domestic hot water supply pipe G4. A domestic hot water outlet pipe G6 of the gas heating hot water furnace is connected with the domestic hot water supply pipe G4. A heating water supply pipe G14 is connected to a water distributor in the heating hot water system. A water collector is connected with the bottom of the upper heat exchange coil pipe through a heating water return pipe G15. A bypass pipe G8 is connected with a heating hot water pipe G11 and the heating water return pipe G15. According to the system, the solar energy and the gas heating hot water furnace are utilized to heat, the utilization rate of renewable energy sources can be increased, and heat supply for users can be guaranteed at the same time.
Description
Technical field
The present invention relates to a kind of heat supply process, particularly a kind of solar energy and the complementary heating system of gas-heating water heater.
Background technology
The characteristic of solar energy source is enormous amount, inexhaustible; Acquisition is convenient, conversion ratio is higher; But timeliness, seasonality are stronger.When summer, solar energy source density is the highest, reaches winter minimum, and thus the heat that obtains in the winter time of the solar energy system of same area is minimum.If the heating system of using it for, its collector area will reach about 1/4th of heating area, if the enclosed structure of building does not reach power conservation requirement, the area needed can be larger.The initial cost enormous amount caused thus, is not reasonably accepting within scope.Chinese scholars, when carrying out the research of solar low-temperature hot water floor radiant heating system, all show that winter solar can provide the heat load of 30% (winter, average sunshine time got 8 hours).Due to the impact that it is subject to weather, the natural conditions such as round the clock, non-fine day (especially winter) solar energy is insufficient, and the water temperature that hot-water heating system provides is lower, and load is difficult to ensure, utilizes solar-heating to be just restricted completely.
Gas-heating water heater, appears at Europe the 1950's, has the family of 70% to use independent individual heating mode at present in Europe, and wherein the family selection of 75% uses gas-heating water heater.The nineties in 20th century, gas-heating water heater starts in China's application, and development was swift and violent in recent years.Gas-heating water heater can be the apartment of about 300 ㎡ or villa provides separately heating reservoir and hot water for life.After installing indoor thermostat additional, the temperature in different room can be regulated; Install timer additional, predeterminable start-up time; Also metering heating can be realized.The expense such as boiler room, heat supply network is eliminated in heating, easy to operate, safety and environmental protection.
Adopt gas-heating water heater to provide heating and domestic hot-water simultaneously, the power that gas-heating water heater answers selection and comparison high, but underload duty can be in for a long time when heating, therefore can reduce the service efficiency of gas-heating water heater, and then affect the service life of gas-heating water heater.
As pure consumption gas equipment, the prerequisite that gas-heating water heater is met consumers' demand necessarily will consume enough combustion gas, thus brings the contradiction of comfortableness and economy.In the face of such situation, gas-heating water heater manufacturer constantly improves properties of product on the one hand, controls to practice every conceivable frugality consumption from equipment; Be exactly advocate behavior energy saving in addition, realize energy-conservation from the angle of user's occupation mode.
In recent years, people start eye progressively to turn to energy saving of system again, be joined in a system by gas-heating water heater and other power consumption or powering device, such as, except directly providing except heating, the equipment such as air-conditioning, heat pump, solar energy that also can be provide auxiliary thermal source.Rely on perfect control system to give full play to the advantage of each equipment, maximize favourable factors and minimize unfavourable ones, finally realize the optimization of the energy, reach the object reducing wastage in bulk or weight.
The heating of domestic hot-water is carried out and heating has respective limitation by our known simple employing solar energy of above-mentioned analysis or gas-heating water heater.As both combined, then can give full play to respective speciality, realizing having complementary advantages, finally reaching energy source optimization, the multiple effect such as reduce environmental pollution, reduce that user economy is paid.
Solar water direct heating in patent 200820103475.3 (the solar energy auxiliary warming of radiation heating), cannot ensure water quality, cause corrosion to heating terminal, reduces service life, and easily frost crack pipe occurs winter; Solar water direct heating in patent 200820201588.7 confession of the band solar energy (warm up hot water two purpose type gas-heating water heater), water quality cannot be ensured, corrosion is caused to heating terminal, reduce service life, and winter frost crack pipe phenomenon easily occurs, domestic hot-water's heating water is used with, water quality cannot be ensured, solar water directly enters gas-heating water heater heating simultaneously, easy fouling and clogging pipeline, corrosion gas-heating water heater; In patent 200910062283 (solar ground heating system), domestic hot-water's heating water is used with, and fails to solve hot water preferentially use problem sequentially; In patent 201010206216.5 (solar gas integrated heating device), heat-accumulator tank adopts multiple heat exchange coil, affects heat exchange efficiency, and cannot ensure heat stability while that gas-heating water heater being lower to heating water tanks efficiency; In patent 201020129575.0 (solar energy and gas-heating water heater are in conjunction with supplying hot water and heating plant), heating most cases only relies on gas-heating water heater, and the utilization rate of heating to solar energy is lower; In patent 201020243754.7 and 201120232330.5 (the complementary heating system of solar energy, gas-heating water heater), domestic hot-water's water temperature cannot meet the demand of user's higher temperature, solar water directly enters gas-heating water heater heating, easy fouling and clogging pipeline, corrosion gas-heating water heater, heating is not yet in effect utilizes solar energy; In patent 201120281740.9 (solar energy wall-mounted gas boiler heating device), domestic hot-water's water temperature cannot meet the demand of user's higher temperature, and heating is not yet in effect utilizes solar energy; In patent 201210330458.4 (a kind of solar energy and combustion gas each door type combined heating system), domestic hot-water's heating water is mixed, and cannot ensure water quality, heating water temperature arranges too high, is unfavorable for energy-conservation; Reckon without in patent 201310514364.7 and 20132066628.0 (a kind of solar energy and condensation-type gas-fired heating water heater combined heating system) that solar irradiation is lower, domestic hot-water's demand is higher causes water tank temperature, heating water supply leaving water temperature too low thus occur that heating water carries out inverse situation about heating to water tank, water storage box complex structure simultaneously, is unfavorable for maintenance.In patent 201320054166.2 (vacuum pipe solar and fuel gas combined heating system), heat-accumulator tank adopts multiple heat exchange coil, affect heat exchange efficiency, and cannot heat stability be ensured the while that gas-heating water heater being lower to heating water tanks efficiency; In patent 201320062466.5 (a kind of tabula rasa solar energy and fuel gas combined heating system), heat-accumulator tank adopts multiple heat exchange coil, affect heat exchange efficiency, and cannot heat stability be ensured the while that gas-heating water heater being lower to heating water tanks efficiency; In 20140556891.4 (a kind of solar energy wall-hung boilers), domestic hot-water is not yet in effect utilizes solar energy, solar water directly enters gas-heating water heater heating, easy fouling and clogging corrosion of piping gas-heating water heater, easily there is frost crack pipe phenomenon in winter.
Summary of the invention
The object of the present invention is to provide the system of a kind of solar energy and the complementary heat supply of gas-heating water heater, this system is on the basis making full use of solar energy resources, the auxiliary gas-heating water heater that uses heats, thus both can improve renewable energy utilization rate, can ensure user's heat supply again simultaneously.
As above conceive, technical scheme of the present invention is: a kind of solar energy and the complementary heating system of gas-heating water heater, comprise solar thermal collection system, heat storage water tank system, hot water supply system and hot-water central heating system; Described solar thermal collection system comprises solar thermal collector, working fluid for solar energy circulating pump and solar energy loop expansion drum; Blow-down pipe and magnetic valve are equipped with in solar thermal collector lower end, solar thermal collector are connected with solar energy high temperature working medium pipeline G1 and solar low-temperature working medium pipeline G2;
Described hot water supply system comprises gas-heating water heater, heating stove water inlet pipe G12, heating stove feed pipe G13, domestic hot-water's water inlet pipe G5 and domestic hot-water's outlet pipe G6 are installed bottom this water heater, domestic hot-water's water inlet pipe G5 is connected with domestic hot-water's feed pipe G4 respectively with domestic hot-water's outlet pipe G6, domestic hot-water's feed pipe G4 and heat storage water tank system connectivity;
Described hot-water central heating system comprises user's end floor panel heating coil pipe, water knockout drum and water collector, and water knockout drum and water collector are connected with user's end floor panel heating coil pipe;
It is characterized in that: described heat storage water tank system adopts dual coil pipes heat storage water tank, casing is built with bottom heat exchange heat exchange coil and top heat exchange coil, bottom heat exchange coil is connected with solar energy high temperature working medium pipeline G1 and solar low-temperature working medium pipeline G2 respectively, and coil pipe inside is provided with the temperature sensor T8 for detecting coil pipe place, top water temperature; Top heat exchange coil is connected with the heating hot water pipe G11 in hot-water central heating system and heating return pipe G15 respectively, and coil pipe inside is provided with the temperature sensor T9 for detecting coil pipe place, top water temperature; Lower box is equipped with blow-off pipe G9 and running water pipe G10, and running water pipe G10 is connected with the heating return pipe G15 in hot-water central heating system;
Domestic hot-water's water inlet pipe G5 of described gas-heating water heater is connected with domestic hot-water's feed pipe G4 by electric T-shaped valve S1, and domestic hot-water's outlet pipe G6 of gas heating stove is connected with domestic hot-water's feed pipe G4 by constant-temperature water mixing valve H;
Water knockout drum in described hot-water central heating system is connected with heating feed pipe G14, heating stove feed pipe G13 is connected with heating feed pipe G14, heating feed pipe G14 is connected with one end of heating hot water pipe G11, the other end of heating hot water pipe G11 is connected with the top of top heat exchange coil, and heating stove water inlet pipe G12 is connected with heating hot water pipe G11 by electric T-shaped valve S2; Water collector in hot-water central heating system is connected with the bottom of top heat exchange coil by heating return pipe G15; Bypass pipe G8 is connected with heating hot water pipe G11 and heating return pipe G15 by bypass constant temperature motor-driven valve PH.
Domestic hot-water's feed pipe G4 of above-mentioned gas-heating water heater is provided with temperature sensor T3.
Domestic hot-water's outlet pipe G6 of above-mentioned gas heating stove is connected with domestic hot-water's mixing tube G7 by constant-temperature water mixing valve H, and running water pipe G10 is connected with domestic hot-water's mixing tube G7 by the bye-pass being provided with stop valve J4.
The hot water mixing tube G7 of above-mentioned life gas-heating water heater is provided with temperature sensor T4 and flowmeter Q2.
Above-mentioned heating hot water pipe G11 is provided with temperature sensor T5.
Above-mentioned heating feed pipe G14 is provided with temperature sensor T7 and stop valve J10.
Above-mentioned heating return pipe G15 is provided with stop valve J11, temperature sensor T7, Pressure gauge P2, heating loop expansion drum, heating water pump and flowmeter Q3, and heating water pump is controlled by indoor temperature transmitter T10.
The present invention has following advantage and good effect:
1, heat storage water tank system of the present invention adopts dual coil pipes heat storage water tank, reasonably utilizes two heat exchange coils and inner space, effectively solar energy cycle fluid, domestic hot-water, heating hot water is kept apart, thus ensure that water quality.
(1) solar thermal collector working medium heat transfer process: solar thermal collector collects heat heating inner loop working medium, by dual coil pipes heat storage water tank bottom heat exchange coil heating water tank;
(2) domestic hot-water supply process: after dual coil pipes heat storage water tank internal water is heated, provide domestic hot-water to user; As temperature does not reach requirement, open gas-heating water heater and carry out post bake, as temperature is too high, by constant temperature water mixing valve regulation, meet consumers' demand, ensure temperature constant simultaneously.
(3) heating hot water supply process: in the coil pipe of dual coil pipes heat storage water tank top, heating water is heated, if temperature does not reach requirement, open gas-heating water heater and carry out post bake, if heating water temperature is too high or in water tank water temperature too low, bypass pipe short circuit water tank, directly enter gas-heating water heater and carry out post bake or backwater is bypassed to feed pipe, thus ensure that heating water temperature meets indoor thermal comfort requirement.
2, gas-heating water heater of the present invention is as secondary heat source, and can domestic hot-water and heating hot water reach user's request and all preferentially use solar energy after heat storage water tank heating, thus substantially increase solar energy utilization ratio.(other traditional methods are if temperature does not reach user's request, and be directly switch to gas-heating water heater and do not re-use solar energy, solar energy utilization ratio is lower)
The design of the bypass pipe 3, in hot-water central heating system of the present invention is creative.When the temperature that coil pipe place, dual coil pipes heat storage water tank top temperature sensor senses arrives is lower than return water temperature, bypass pipe short circuit dual coil pipes heat storage water tank, directly enter gas-heating water heater heating, thus avoid heating water conversely heating water tank cause thermal loss.
4, indoor temperature transmitter of the present invention control the start and stop of heating water pump way can while guarantee user thermal comfort economize energy.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
In Fig. 1: I, solar thermal collection system; II, dual coil pipes heat storage water tank system; III, hot water supply system; IV, hot-water central heating system.
Specifically comprise: 1, solar thermal collector; 2, working fluid for solar energy circulating pump; 3, solar energy loop expansion drum; 4, dual coil pipes heat storage water tank; 5, water tank bottom heat exchange coil; 6, water tank upper heat exchange coil; 7, gas-heating water heater; 8, user's end floor panel heating coil pipe; 9, water knockout drum; 10, water collector; 11, heating water pump; 12, heating loop expansion drum; J1-J10 stop valve; D1-D4, magnetic valve; S1-S2, electric T-shaped valve; H, constant-temperature water mixing valve; PH, bypass constant temperature motor-driven valve; T1-T10, temperature sensor device; P1-P2, Pressure gauge; Q1-Q3, flowmeter; G1, solar energy high temperature working medium pipeline; G2, solar low-temperature working medium pipeline; G3, blow-down pipe; G4, domestic hot-water's feed pipe; G5, gas-heating water heater domestic hot-water water inlet pipe; G6, gas-heating water heater domestic hot-water outlet pipe; G7, domestic hot-water's mixing tube; G8, bypass pipe; G9, blow-off pipe; G10, running water pipe; G11, heating hot water pipe; G12, gas-heating water heater heating water inlet pipe; G13, gas-heating water heater heating feed pipe; G14, heating feed pipe; G15, heating return pipe.
Detailed description of the invention:
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
As shown in Figure 1: a kind of solar energy and the complementary heating system of gas-heating water heater, by solar thermal collection system I, dual coil pipes heat storage water tank system II, hot water supply system III and hot-water central heating system IV 4 sub-System's composition.
Solar thermal collection system I: blow-down pipe (G3) is equipped with in solar thermal collector (1) lower end, be provided with magnetic valve (D3), the solar energy high temperature working medium pipeline (G1) be connected with solar thermal collector (1) and solar low-temperature working medium pipeline (G2) are connected water tank bottom coil pipe (5) of dual coil pipes heat storage water tank (4), solar energy high temperature working medium pipeline (G1) is provided with stop valve (J1), temperature sensor (T1) and magnetic valve (D1), solar low-temperature working medium pipeline (G2) is provided with stop valve (J2), temperature sensor (T2), magnetic valve (D2), working fluid for solar energy circulating pump (2), Pressure gauge (P1) and flowmeter (Q1).
Dual coil pipes heat storage water tank system II: dual coil pipes heat storage water tank (4) bottom heat exchange coil (5) is connected with solar energy high temperature working medium pipeline (G1) and solar low-temperature working medium pipeline (G2), coil pipe inside is provided with temperature sensor (T8) and detects coil pipe place, bottom water temperature, top heat exchange coil (6) is connected with heating hot water pipe (G11) and heating return pipe (G15), coil pipe inside is provided with temperature sensor (T9) and detects coil pipe place, top water temperature, described water tank bottom is equipped with blow-off pipe (G9) and is provided with stop valve (J3) above, described water tank bottom connects running water pipe (G10), be provided with magnetic valve (D3), the branch road that running water pipe is provided with stop valve (J4) connects domestic hot-water's mixing tube (G7), branch road connection heating return pipe (G15) that running water pipe is provided with stop valve (J5) carries out first moisturizing.
Hot water supply system III: domestic hot-water's water inlet pipe (G5) of gas-heating water heater is connected with domestic hot-water's feed pipe (G4) by electric T-shaped valve (S1), gas-heating water heater domestic hot-water outlet pipe (G6) is connected with domestic hot-water's feed pipe (G4) and domestic hot-water's mixing tube (G7) by constant-temperature water mixing valve (H), domestic hot-water's feed pipe (G4) is provided with temperature sensor (T3), and domestic hot-water's mixing tube (G7) is provided with temperature sensor (T4) and flowmeter (Q2).
Hot-water central heating system IV: the heating water inlet pipe (G12) of gas-heating water heater is connected with heating hot water pipe (G11) by electric T-shaped valve (S2), gas-heating water heater heating feed pipe (G13) is connected with heating feed pipe (G14), heating feed pipe (G14) is connected with water knockout drum (9), water knockout drum (9) and water collector (10) are connected with user's end floor panel heating coil pipe (8), water collector (10) is connected with heating return pipe (G15), bypass pipe (G8) is connected with heating hot water pipe (G11) and heating return pipe (G15) by bypass constant temperature motor-driven valve (PH), heating hot water pipe (G11) is provided with temperature sensor (T5), heating feed pipe (G14) is provided with temperature sensor (T7) and stop valve (J10), heating return pipe (G15) is provided with stop valve (J11), temperature sensor (T7), Pressure gauge (P2), heating loop expansion drum (12), heating water pump (11) and flowmeter (Q3).
Control operation step of the present invention is as follows:
1) system initial launch strategy:
First shut electromagnetic valve D3, opens stop valve J1, J2, opens working fluid for solar energy circulating pump 2, is filled with in solar energy circulation line and expansion drum by working fluid for solar energy (antifreezing solar energy liquid), after reaching authorized pressure, closes working fluid for solar energy circulating pump 2.Open stop valve J12, open magnetic valve D4, close electric T-shaped valve S1, S2, PH, close constant-temperature water mixing valve H, running water is made to enter dual coil pipes heat storage water tank 4 until reach predetermined water level, shut electromagnetic valve D4, open stop valve J5, open heating water pump 11, open the valve that electric T-shaped valve S2 leads to water tank upper heat exchange coil 6, running water is made to enter heating pipe until reach heating regulation hydraulic pressure, open magnetic valve D4, close constant-temperature water mixing valve H, open the valve that electric T-shaped valve S2 leads to gas-heating water heater 7, close heating water pump 11, gas-heating water heater 7 heating hydraulic pressure is made to reach rated pressure, after normal operation, close gas-heating water heater, enter normal operating phase.
2) the normal operation reserve of system:
Solar thermal collection system: the difference of the temperature that setting solar thermal collector 1 solar energy high temperature working medium pipeline G1 connection water tank place temperature sensor T1 senses and the temperature that heat exchange coil 5 place, dual coil pipes heat storage water tank 4 bottom temperature sensor T8 senses: start temperature approach and be preset as 10 DEG C, stop temperature approach being preset as 2 DEG C.System reaches startup temperature approach, and working fluid for solar energy circulating pump 2 is opened, and now the hot water of solar thermal collector 1 hot water storage tank starts feed-tank heating by dual coil pipes heat storage water tank 4 bottom heat exchange coil 5; System reaches stopping temperature approach, and working fluid for solar energy circulating pump 2 cuts out, and circulation stops.
Hot-water central heating system: when the temperature that heat exchange coil 6 place, dual coil pipes heat storage water tank 4 top temperature sensor T9 senses is greater than the temperature of heating return pipe G15 place temperature sensor T7 induction, electric T-shaped valve PH opens the valve leading to water tank, and water tank heats heating water; When the temperature that heat exchange coil 6 place, dual coil pipes heat storage water tank 4 top temperature sensor T9 responds to is less than the temperature of heating return pipe G15 place temperature sensor T7 induction, electric T-shaped valve PH opens the valve leading to heating hot water pipe G11, short circuit water tank.When the temperature that heating hot water pipe G11 place temperature sensor T5 responds to is less than heating terminal design supply water temperature (50 DEG C), electric T-shaped valve S2 opens the valve leading to gas-heating water heater 7, and heating hot water pipe G11 inflow gas-heating water heater carries out post bake to heating terminal and designs supply water temperature (50 DEG C); When the temperature that heating hot water pipe G11 place temperature sensor T5 responds to is less than heating terminal design supply water temperature (50 DEG C), electric T-shaped valve S2 opens the valve leading to user's end floor panel heating coil pipe 8, bypass constant temperature motor-driven valve PH is by controlling the bypass water yield simultaneously, makes supply water temperature keep constant.Indoor temperature transmitter T10 respond to temperature reach user temperature required time automatically close heating water pump 11.
Hot water supply system: when the temperature that domestic hot-water's feed pipe G4 place temperature sensor T3 responds to is less than user's request (in specification < 60 DEG C), electric T-shaped valve S1 opens the valve leading to gas-heating water heater 7, and domestic hot-water flows into gas-heating water heater and carries out post bake to user's request water temperature; When the temperature that domestic hot-water's feed pipe G4 place temperature sensor T3 responds to is greater than user's request, no longer open gas-heating water heater, regulate cold-hot water proportion by constant-temperature water mixing valve H, domestic hot-water is met consumers' demand and keeps temperature constant.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (7)
1. solar energy and the complementary heating system of gas-heating water heater, comprise solar thermal collection system, heat storage water tank system, hot water supply system and hot-water central heating system; Described solar thermal collection system comprises solar thermal collector, working fluid for solar energy circulating pump and solar energy loop expansion drum; Blow-down pipe and magnetic valve are equipped with in solar thermal collector lower end, solar thermal collector are connected with solar energy high temperature working medium pipeline G1 and solar low-temperature working medium pipeline G2;
Described hot water supply system comprises gas-heating water heater, heating stove water inlet pipe G12, heating stove feed pipe G13, domestic hot-water's water inlet pipe G5 and domestic hot-water's outlet pipe G6 are installed bottom this water heater, domestic hot-water's water inlet pipe G5 is connected with domestic hot-water's feed pipe G4 respectively with domestic hot-water's outlet pipe G6, domestic hot-water's feed pipe G4 and heat storage water tank system connectivity;
Described hot-water central heating system comprises user's end floor panel heating coil pipe, water knockout drum and water collector, and water knockout drum and water collector are connected with user's end floor panel heating coil pipe;
It is characterized in that: described heat storage water tank system adopts dual coil pipes heat storage water tank, casing is built with bottom heat exchange heat exchange coil and top heat exchange coil, bottom heat exchange coil is connected with solar energy high temperature working medium pipeline G1 and solar low-temperature working medium pipeline G2 respectively, and coil pipe inside is provided with the temperature sensor T8 for detecting coil pipe place, top water temperature; Top heat exchange coil is connected with the heating hot water pipe G11 in hot-water central heating system and heating return pipe G15 respectively, and coil pipe inside is provided with the temperature sensor T9 for detecting coil pipe place, top water temperature; Lower box is equipped with blow-off pipe G9 and running water pipe G10, and running water pipe G10 is connected with the heating return pipe G15 in hot-water central heating system;
Domestic hot-water's water inlet pipe G5 of described gas-heating water heater is connected with domestic hot-water's feed pipe G4 by electric T-shaped valve S1, and domestic hot-water's outlet pipe G6 of gas heating stove is connected with domestic hot-water's feed pipe G4 by constant-temperature water mixing valve H;
Water knockout drum in described hot-water central heating system is connected with heating feed pipe G14, heating stove feed pipe G13 is connected with heating feed pipe G14, heating feed pipe G14 is connected with one end of heating hot water pipe G11, the other end of heating hot water pipe G11 is connected with the top of top heat exchange coil, and heating stove water inlet pipe G12 is connected with heating hot water pipe G11 by electric T-shaped valve S2; Water collector in hot-water central heating system is connected with the bottom of top heat exchange coil by heating return pipe G15; Bypass pipe G8 is connected with heating hot water pipe G11 and heating return pipe G15 by bypass constant temperature motor-driven valve PH.
2. a kind of solar energy according to claim 1 and the complementary heating system of gas-heating water heater, is characterized in that: domestic hot-water's feed pipe G4 of above-mentioned gas-heating water heater is provided with temperature sensor T3.
3. a kind of solar energy according to claim 1 and the complementary heating system of gas-heating water heater, it is characterized in that: domestic hot-water's outlet pipe G6 of above-mentioned gas heating stove is connected with domestic hot-water's mixing tube G7 by constant-temperature water mixing valve H, running water pipe G10 is connected with domestic hot-water's mixing tube G7 by the bye-pass being provided with stop valve J4.
4. a kind of solar energy according to claim 1 and the complementary heating system of gas-heating water heater, is characterized in that: above-mentioned heating hot water pipe G11 is provided with temperature sensor T5.
5. a kind of solar energy according to claim 1 and the complementary heating system of gas-heating water heater, is characterized in that: above-mentioned heating feed pipe G14 is provided with temperature sensor T7 and stop valve J10.
6. a kind of solar energy according to claim 1 and the complementary heating system of gas-heating water heater, it is characterized in that: above-mentioned heating return pipe G15 is provided with stop valve J11, temperature sensor T7, Pressure gauge P2, heating loop expansion drum 12, heating water pump 11 and flowmeter Q3, and heating water pump 11 is controlled by indoor temperature transmitter T10.
7. a kind of solar energy according to claim 3 and the complementary heating system of gas-heating water heater, is characterized in that: the hot water mixing tube G7 of above-mentioned life gas-heating water heater is provided with temperature sensor T4 and flowmeter Q2.
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