CN103712371B - Refrigerating and heating systems - Google Patents
Refrigerating and heating systems Download PDFInfo
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- CN103712371B CN103712371B CN201310719640.3A CN201310719640A CN103712371B CN 103712371 B CN103712371 B CN 103712371B CN 201310719640 A CN201310719640 A CN 201310719640A CN 103712371 B CN103712371 B CN 103712371B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 70
- 238000001816 cooling Methods 0.000 claims abstract description 133
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 129
- 238000010792 warming Methods 0.000 claims abstract description 69
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 239000003507 refrigerant Substances 0.000 claims description 56
- 239000000498 cooling water Substances 0.000 claims description 43
- 230000008676 import Effects 0.000 claims description 31
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 16
- 230000003020 moisturizing effect Effects 0.000 description 13
- 239000006096 absorbing agent Substances 0.000 description 12
- 210000004243 sweat Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Engine Equipment That Uses Special Cycles (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a kind of refrigerating and heating systems, it is characterized in that, comprise: biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem and electric energy cooling and warming subsystem, wherein, biogas cooling and warming subsystem comprises: biogas feeding mechanism, high-voltage generator, low pressure generating means, the first condensing unit, first throttle device, vaporising device, absorption plant and hot water storage device; Solar Energy cooling and heating subsystem comprises: low pressure generating means, the first condensing unit, first throttle device, vaporising device, absorption plant, hot water storage device and solar energy heat collector; Electric energy cooling and warming subsystem comprises: compression set, the second condensing unit, the second throttling arrangement and vaporising device, three cooling and warming subsystems are grouped together cleverly by low pressure generating means and vaporising device, and the present invention effectively can solve the problem of utilization by objective condition restriction, raising total energy efficiency, the operational efficiency of the single energy and reduce consumptive material.<pb pnum="1" />
Description
Technical field
The present invention relates to a kind of refrigerating and heating systems, particularly relate to a kind of biogas direct combustion double effect absorption refrigerating and heating systems, a kind of solar energy single-effective absorption refrigerating and heating systems and a kind of compression-type refrigeration heating.
Background technology
Along with becoming increasingly conspicuous of energy problem, the exploitation of the regenerative resources such as solar energy are just seemed particularly important, a lot of agricultural and livestock-raising district is had in northern China city suburbs and vast rural area, be applicable to very much the Application and Development of biogas, biogas is a kind of important biomass energy, is also a kind of regenerative resource, is the effective way utilizing living beings to produce clean energy resource, and the corresponding solar energy resources in these areas also enriches very much therewith, be applicable to the exploitation of solar energy.But solar energy and biogas output are all subject to the restriction of the objective condition such as weather environment, can not stablize supply, the utilization limiting its single energy is promoted.
Electrical energy drive compression-type refrigeration heats technology can meet the advantage such as cooling and warming demand, steady and continuous operation, but electric energy belongs to high-grade energy, and its total energy efficiency is low, does not have energy-saving and emission-reduction advantage.
If for making full use of clean energy resource, guaranteeing again system stability reliability service, individually designing a few cover system, cost can be caused too high, cannot apply in reality.
Summary of the invention
The present invention carries out to solve the problem, and the present invention to achieve these goals, have employed following structure.
< structure one >
The invention provides a kind of refrigerating and heating systems, there is such feature, comprise: biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem and electric energy cooling and warming subsystem, wherein, biogas cooling and warming subsystem comprises: biogas feeding mechanism, high-voltage generator, low pressure generating means, first condensing unit, first throttle device, vaporising device, absorption plant and hot water storage device, Solar Energy cooling and heating subsystem comprises: low pressure generating means, first condensing unit, first throttle device, vaporising device, absorption plant, hot water storage device and solar energy heat collector, electric energy cooling and warming subsystem comprises: compression set, second condensing unit, second throttling arrangement and vaporising device, biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem and electric energy cooling and warming subsystem share vaporising device, biogas cooling and warming subsystem and Solar Energy cooling and heating subsystem share low pressure generating means, first condensing unit, first throttle device, vaporising device, absorption plant and hot water storage device, high-voltage generator utilizes the biogas combustion heat dilute solution from biogas feeding mechanism to generate high pressure refrigerant vapor, low pressure generating means makes from the recirculated water in solar energy heat collector or hot water storage device, weak solution in high pressure refrigerant vapor in high-voltage generator and low pressure generating means carries out heat exchange, hot water storage device stores from the water of low pressure vaporising device or the water of solar energy heat collector, solar energy heat collector utilizes solar energy to heat the water from hot water storage device, first condensing unit carries out condensation to the cold-producing medium from low pressure generating means, first throttle device carries out throttling cooling to from the first condensing unit cold-producing medium, vaporising device evaporates the cold-producing medium from first throttle device, absorption plant utilization is carried out absorption from the concentrated solution of high-voltage generator and the concentrated solution of low pressure generating means to the cold-producing medium carrying out self-evaporating unit and is obtained weak solution, simultaneously for high-voltage generator and low pressure generating means provide weak solution, vaporising device also evaporates the cold-producing medium from the second throttling arrangement, compression set carries out compression to the refrigerant vapour carrying out self-evaporating unit and obtains high pressure refrigerant vapor, second condensing unit carries out condensation to the cold-producing medium from compression set, second throttling arrangement carries out throttling cooling to the condensing agent from the second condensing unit.
In refrigerating and heating systems provided by the invention, such feature can also be had: biogas cooling and warming subsystem also comprises: for controlling open and close first gauge tap of biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem also comprises: for controlling the second gauge tap of the open and close of Solar Energy cooling and heating subsystem, electric energy cooling and warming subsystem also comprises: for controlling the 3rd gauge tap of the open and close of electric energy cooling and warming subsystem.
In refrigerating and heating systems provided by the invention, such feature can also be had: refrigerating and heating systems also comprises: cooling water circulation subsystem, cooling water circulation subsystem comprises: cooling device and cooling water replenishment pipeline, the outlet of cooling device is connected with the cooling water inlet of absorption plant, the coolant outlet of absorption plant is connected with the cooling water inlet of the first condensing unit, the coolant outlet of the first condensing unit is connected with the cooling water inlet of the second condensing unit, the coolant outlet of the second condensing unit is connected with the import of cooling device, the cooling water inlet of absorption plant is also connected with cooling water replenishment pipeline.
In refrigerating and heating systems provided by the invention, such feature can also be had: the first refrigerating plant also comprises: the connecting pipe connecting the water out of low pressure generating means and the water inlet of high-voltage generator, connect the connecting pipe of the water out of high-voltage generator and the circulating water intake of hot water storage device.
In refrigerating and heating systems provided by the invention, can also have such feature: low pressure generating means is tubular heat exchange device, is provided with heat exchanger tube in tubular heat exchange device, heat exchanger tube centre heat exchanger fin separates.
In refrigerating and heating systems provided by the invention, can also have such feature: wherein, vaporising device is bushing type vaporising device, and bushing type vaporising device is made up of inner and outer tubes.
The effect of invention and effect
According to refrigerating and heating systems of the present invention, because have employed structure biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem and electric energy cooling and warming subsystem combined cleverly by low pressure generating means and vaporising device, so the utilization that the present invention effectively can not only solve the single energy in solar energy and methane energy causes the problem of fluctuation of service can also reduce use to high-grade electric energy by objective condition restriction, improve total energy efficiency.
And, according to refrigerating and heating systems of the present invention, because have employed, the water out of low pressure generating means is connected with the water inlet of high-voltage generator, the structure that the water out of high-voltage generator is connected with the circulating water intake of hot water storage device, so in time only needing supplying hot water, heat exchange number of times can be reduced, improve the thermal efficiency.
And, according to refrigerating and heating systems of the present invention, because have employed, absorption plant, the first condensing unit, a second condensing unit and cooling device cooling water pipe is connected, share the structure of cooling water circulation subsystem, compact conformation can also be made so operational efficiency can not only be improved, reduce consumptive material.
Therefore, the present invention can propose a kind of knockdown effectively can not only solve the cold heating of unitary system utilization restriction problem but also there is the refrigerating and heating systems of energy-saving and emission-reduction meaning.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of refrigerating and heating systems in the embodiment of the present invention;
Fig. 2 is the structural representation of biogas cooling and warming subsystem in the embodiment of the present invention;
Fig. 3 is the structural representation of Solar Energy cooling and heating subsystem in the embodiment of the present invention;
Fig. 4 is the structural representation of electric energy cooling and warming subsystem in the embodiment of the present invention;
Fig. 5 is the Water flow-path schematic diagram of cooling water circulation subsystem in the embodiment of the present invention; And
Fig. 6 is the structural representation of embodiment of the present invention mesolow generator.
Detailed description of the invention
Below in conjunction with drawings and Examples, the electricity generation system that the present invention relates to is described in detail.
< embodiment >
Fig. 1 is the overall structure schematic diagram of refrigerating and heating systems in the embodiment of the present invention.
As shown in Figure 1, refrigerating and heating systems 500 comprises: biogas cooling and warming subsystem 100, Solar Energy cooling and heating subsystem 200, electric energy cooling and warming subsystem 300 and cooling water circulation subsystem 400.
Biogas cooling and warming subsystem 100 comprises: methane-generating pit 101, air accumulator 102, high pressure generator 103, low pressure generator 104, first condenser 105, first throttle valve 106, evaporimeter 107, absorber 108, solution circulation pump 109, hot water circulating pump 110, boiler 111, domestic hot-water supply pipeline 112 and chilled water pipeline 113.
Solar Energy cooling and heating subsystem 200 comprises: solar thermal collector 201, pipeline 202, low pressure generator 104, first condenser 105, first throttle valve 106, evaporimeter 107, absorber 108, solution circulation pump 109, hot water circulating pump 110, boiler 111, domestic hot-water supply pipeline 112 and chilled water pipeline 113.
Electric energy cooling and warming subsystem 300 comprises: compressor 301, second condenser 302, fluid reservoir 303, second throttle 304, cold water moisturizing pipeline 305, evaporimeter 107 and chilled water pipe 113.
Cooling water circulation subsystem 400 comprises: cooling water replenishment pipeline 401, cooling water circulating pump 402, cooler 403 and connecting line.
Biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem and electric energy cooling and warming subsystem share evaporimeter 107 and cooling water circulation subsystem 400.
Biogas cooling and warming subsystem and Solar Energy cooling and heating subsystem share low pressure generator 104, first condenser 105, first throttle valve 106, evaporimeter 107, absorber 108, solution circulation pump 109, hot water circulating pump 110, boiler 111, domestic hot-water supply pipeline 112 and chilled water pipeline 113.
In the present embodiment, as shown in Figure 1, methane-generating pit 101 is connected with the import of air accumulator 102, the outlet of air accumulator 102 is connected with the thermal source supply opening of high pressure generator 103, the high pressure refrigerant vapor outlet of high pressure generator 103 is connected with the high pressure refrigerant vapor import of low pressure generator 104, the refrigerant inlet of the first condenser 105 exports with the refrigerant vapour of low pressure generator respectively to export with high pressure refrigerant vapor and is connected, the refrigerant outlet of the first condenser 105 is connected with the import of first throttle valve 106, the outlet of first throttle valve 106 is connected with cold-producing medium first import of evaporimeter 107, the cold-producing medium first of evaporimeter 107 exports and is connected with the refrigerant vapour import of absorber 108, the concentrated solution import of absorber 108 exports with the concentrated solution of high pressure generator 103 respectively to export with the concentrated solution of low pressure generator 104 and is connected respectively, the weak solution outlet of absorber 108 is connected with the import of solution circulation pump 109, solution circulation delivery side of pump is connected with the dilute solution inlet of high pressure generator 103 with low pressure generator 104 respectively, the outlet of hot water circulating pump 110 is connected with the circulating water intake of boiler 111 with the water inlet of low pressure generator 104 respectively, the circulating water outlet of boiler 111 is connected with the import of hot water circulating pump 110 with the import of solar thermal collector 201 respectively, the water out of low pressure generator 104 is connected with the circulating water intake of boiler 111 with the water inlet of high pressure generator respectively, the outlet of solar thermal collector 201 is connected with the import of hot water circulating pump 110, the water out of high pressure generator 103 is connected with the circulating water intake of boiler 111, the hot water outlet of boiler 111 is connected with domestic hot-water supply pipeline 112, the outlet of compressor 301 is connected with the refrigerant inlet of the second condenser 302, the outlet of the second condenser 302 is connected with the import of fluid reservoir 303, the outlet of fluid reservoir 303 is connected with the import of second throttle 304, the outlet of second throttle 304 is connected with cold-producing medium second import of evaporimeter 107, the cold-producing medium second of evaporimeter 107 exports and is connected with the import of compressor 301, cold water moisturizing pipeline 305 is connected with the water inlet of the second condenser 302, the water out of the second condenser 302 is connected with the import of solar thermal collector 201.
Fig. 2 is the overall structure schematic diagram of biogas cooling and warming subsystem in the embodiment of the present invention.
As shown in Figure 2, biogas cooling and warming subsystem comprises: methane-generating pit 101, air accumulator 102, high pressure generator 103, low pressure generator 104, first condenser 105, first throttle valve 106, evaporimeter 107, absorber 108, solution circulation pump 109, hot water circulating pump 110, boiler 111, domestic hot-water supply pipeline 112 and chilled water pipeline 113.
In the present embodiment, as shown in Figure 2, air accumulator 102 is for storing the biogas of methane-generating pit 101, biogas in air accumulator 102 enters high-voltage generator for high pressure generator 103 provides thermal source, biogas is combustion heating weak solution in high pressure generator 103, along with the continuous heat dilute solution of biogas combustion, low boiling point refrigerant evaporation in weak solution forms high pressure refrigerant vapor, and weak solution also becomes concentrated solution, high pressure refrigerant vapor enters low pressure generator 104 and heats weak solution in low pressure generator 104, weak solution in low pressure generator 104 becomes concentrated solution, and generate refrigerant vapour, this refrigerant vapour enters condensation in the first condenser 105 after mixing with the high pressure refrigerant vapor after heat exchange, cold-producing medium after being condensed enters first throttle valve 106 and carries out throttling, entered evaporimeter 107 by the cold-producing medium after throttling to evaporate, refrigerant vapour after evaporation enter absorber 108 by from high pressure generator 103 and low pressure generator 104 concentrated solution absorb then cooling become weak solution, this weak solution enters high pressure generator 103 and low pressure generator 104 respectively, the above-mentioned high pressure refrigerant vapor from high pressure generator 103 goes back heat cycles water in low pressure generator 104 except heat dilute solution simultaneously, under the effect of hot water circulating pump 110, recirculated water constantly flows through low pressure generator 104, heated by high pressure refrigerant vapor, boiler 111 is entered by the recirculated water after heating, resident is supplied to use when the water temperature in boiler 111 reaches after setting value by domestic hot-water supply pipeline 112.
Fig. 3 is the structural representation of Solar Energy cooling and heating subsystem in the embodiment of the present invention.
Compared with the biogas cooling and warming subsystem shown in Fig. 2, the Solar Energy cooling and heating subsystem shown in Fig. 3 by solar energy heating recirculated water for low pressure generator provides heat.For the structure identical with the first refrigeration subsystem, also the description thereof will be omitted to adopt identical numbering.
As shown in Figure 2,3, Solar Energy cooling and heating subsystem eliminates methane-generating pit 101, air accumulator 102 and high pressure generator 103 on the basis of the cooling and warming of biogas shown in Fig. 3 subsystem, adds solar thermal collector 201 and pipeline 202 simultaneously.
The import of solar thermal collector 201 is connected with the circulating water outlet of boiler 111, the outlet of solar thermal collector 201 is connected with the import of hot water circulating pump 110, the outlet of hot water circulating pump 110 is connected with the circulating water intake of boiler 111 with the water inlet of low pressure generator 104 respectively, and the water out of low pressure generator 104 is connected with the circulating water intake of boiler 111.
Solar thermal collector 201 absorbs the heat heat cycles water from the sun, and the recirculated water part after heating enters boiler 111, and a part enters low pressure generator 104 for weak solution heating, and the recirculated water after heat exchange enters boiler 111.
Fig. 4 is the structural representation of electric energy cooling and warming subsystem in the embodiment of the present invention.
As shown in Figure 4, electric energy cooling and warming subsystem comprises: compressor 301, second condenser 302, fluid reservoir 303, second throttle 304, cold water moisturizing pipeline 305 and evaporimeter 107.
The outlet of compressor 301 is connected with the refrigerant inlet of the second condenser 302, the outlet of the second condenser 302 is connected with the import of fluid reservoir 303, the outlet of fluid reservoir 303 is connected with the import of second throttle 304, the outlet of second throttle 304 is connected with cold-producing medium second import of evaporimeter 107, and the cold-producing medium second of evaporimeter 107 exports and is connected with the import of compressor 301.
The refrigerant vapour that compressor 301 sucks flash-pot 107 compresses, refrigerant vapour after compression enters the second condenser 302 condensation, cold-producing medium after being condensed enters fluid reservoir 303, cold-producing medium in fluid reservoir enters second throttle 304 and is lowered the temperature by throttling, enter evaporimeter 107 afterwards and carry out sweat cooling, the cold water from cold water moisturizing pipeline 305 is heated by the second condenser 302.
Fig. 5 is the Water flow-path schematic diagram of cooling water circulation subsystem in the embodiment of the present invention.
As shown in Figure 5, cooling water circulation subsystem comprises: cooling water replenishment pipeline 401, cooling water circulating pump 402, cooler 403 and connecting pipe.
The outlet of cooler 403 is connected with the import of cooling water circulating pump 402, the outlet of cooling water circulating pump 402 is connected with the cooling water inlet of absorber 108, the coolant outlet of absorber 108 is connected with the cooling water inlet of the first condenser 105, the cooling water inlet of coolant outlet second condenser 302 of the first condenser 105 is connected, the coolant outlet of the second condenser 302 is connected with the entrance of cooler 403, and the connecting pipe connecting cooling water circulating pump 402 and cooler 403 crosses with cooling water replenishment pipeline 401 and is connected.
Cooling water circulating pump 402 provides circulation power for cooling water circulation subsystem, cooling water enters absorber 108 and cools, enter the first condenser 105 afterwards to cool, enter the second condenser 302 again to cool, the unnecessary heat of second condenser 302 device 403 that is cooled absorbs, and cooling water replenishment pipeline 401 provides cooling water replenishment for cooling water circulation subsystem.
Fig. 6 is the structural representation of embodiment of the present invention mesolow generator.
As shown in Figure 6, low pressure generator 104 has: heat exchanger tube 1, dilute solution inlet 2, concentrated solution outlet 3, refrigerant vapour outlet 4, high pressure refrigerant vapor import 5, high pressure refrigerant vapor outlet 6, water out 7, water inlet 8, cold-producing medium liquid phase portion 9 and cold-producing medium gas phase portion 10.
Low pressure generator 107 is pipe heat exchanger, and heat exchanger tube 1 centre heat exchanger fin 11 separates, and the inner half of heat exchanger tube 1 walks hot water, and second half walks steam.
Evaporimeter has: sleeve pipe, cold-producing medium gas phase portion, cold-producing medium liquid phase portion, refrigerant circulation spray pump, chilled water import, chilled water outlet, cold-producing medium second import, cold-producing medium second export, cold-producing medium first import and cold-producing medium first export.
Evaporimeter is double pipe heat exchanger, and sleeve pipe is made up of outer tube and interior pipe, walks compression-type refrigeration agent in described interior pipe, walks chilled water outside described interior pipe and in outer tube.
Refrigerating and heating systems 500 works as follows:
When solar energy is enough to make water temperature reach the temperature of more than 60 degrees Celsius, biogas cooling and warming subsystem 100 do not opened by first gauge tap, electric energy cooling and warming subsystem 300 do not opened by 3rd gauge tap yet, Solar Energy cooling and heating subsystem 200 opened by second gauge tap, now, Solar Energy cooling and heating subsystem 200 works alone, solar thermal collector 201 utilizes solar energy heating water, a hot water part after heating directly enters boiler 111 as hot water for life, a part of hot water drives low pressure generator 104 to generate refrigerant vapour in addition, refrigerant vapour enters the first condenser 105 and is condensed, enter first throttle valve 106 afterwards to be lowered the temperature by throttling, cold-producing medium after being lowered the temperature by throttling enters evaporimeter 107 sweat cooling, hot water in boiler 111 is supplied to resident to use by domestic hot-water supply pipeline 112.
When there is no solar energy, when biogas is enough sufficient, Solar Energy cooling and heating subsystem 200 cannot start, electric energy cooling and warming subsystem 300 do not opened by 3rd gauge tap, biogas cooling and warming subsystem 100 opened by first gauge tap, now, biogas cooling and warming subsystem 100 works alone, air accumulator 102 for high-voltage generator 103 provide thermal source drive high-voltage generator 103 generate high pressure refrigerant vapor, high pressure refrigerant vapor from high pressure generator 103 drives low pressure generator 104 heat dilute solution and water to generate refrigerant vapour and hot water, hot water enters the cold-producing medium of boiler 111 first condenser 105 condensation from low pressure generator 104, cold-producing medium after being condensed enters first throttle valve 106 throttling cooling, enter evaporimeter 107 sweat cooling afterwards, hot water in boiler 111 is supplied to resident to use by domestic hot-water supply pipeline 112.
When there is no solar energy and biogas, Solar Energy cooling and heating subsystem 200 and biogas cooling and warming subsystem 100 cannot be opened, electric energy cooling and warming subsystem 300 opened by 3rd gauge tap, now electric energy cooling and warming subsystem 300 independent operating, the refrigerant vapour that compressor 301 sucks flash-pot 107 compresses, refrigerant vapour after compression enters the second condenser 302 condensation, cold-producing medium after being condensed enters fluid reservoir 303, the cryogen made in fluid reservoir enters second throttle 304 and is lowered the temperature by throttling, enter evaporimeter 107 afterwards and carry out sweat cooling, moisturizing from cold water moisturizing pipeline 305 enters the second condenser 302 and is heated, flow to the import of solar thermal collector 201 afterwards.
When having solar energy but be not enough to make water temperature reach 60 degrees Celsius and have biogas, first gauge tap and the second gauge tap open biogas cooling and warming subsystem 100 and Solar Energy cooling and heating subsystem 200 respectively, electric energy cooling and warming subsystem 300 do not opened by 3rd gauge tap, now, biogas cooling and warming subsystem 100 and Solar Energy cooling and heating subsystem 200 cooperation, air accumulator 102 for high-voltage generator 103 provide thermal source drive high-voltage generator 103 generate high pressure refrigerant vapor, hot water from solar thermal collector 201 drives low pressure generator 104 jointly with the high pressure refrigerant vapor from high pressure generator 103, first condenser 105 condensation is from the cold-producing medium of low pressure generator 104, cold-producing medium after being condensed enters first throttle valve 106 throttling cooling, enter evaporimeter 107 sweat cooling afterwards, hot water in boiler 111 is supplied to resident to use by domestic hot-water supply pipeline 112.
When there is no solar energy, when biogas is also sufficient not, Solar Energy cooling and heating subsystem 200 cannot start, biogas cooling and warming subsystem 100 opened by first gauge tap, electric energy cooling and warming subsystem 300 opened by 3rd gauge tap, now, biogas cooling and warming subsystem 100 and electric energy cooling and warming subsystem 300 cooperation, biogas in air accumulator 102 drives high pressure generator 103, the high pressure refrigerant vapor that high pressure generator 103 produces drives low pressure generator 104 heat dilute solution and water to generate refrigerant vapour and hot water, first condenser 105 carries out condensation to the cold-producing medium from low pressure generator 104, first throttle valve 106 carries out throttling cooling to the refrigeration-grade from the first condensation trap 105, meanwhile, compressor 301 compressed refrigerant vapor obtains high pressure refrigerant vapor, second condenser 302 pairs high pressure refrigerant vapor carries out condensation cooling, condensed cold-producing medium enters fluid reservoir 303, second throttle 304 carries out throttling cooling to the cold-producing medium from fluid reservoir 303, from the cold-producing medium sweat cooling in evaporimeter 107 respectively of first throttle valve 106 and second throttle 304, moisturizing from cold water moisturizing pipeline 305 enters the second condenser 302 and is heated, flow to the import of solar thermal collector 201 afterwards.
When there is no biogas, when having solar energy list to be not enough to make water temperature higher than 60 degrees Celsius, biogas cooling and warming subsystem 100 cannot start, second gauge tap and the 3rd gauge tap open Solar Energy cooling and heating subsystem 200 and electric energy cooling and warming subsystem 300 respectively, now Solar Energy cooling and heating subsystem 200 and electric energy cooling and warming subsystem 300 cooperation, compressor 301 compressed refrigerant vapor generates high pressure refrigerant vapor, high pressure refrigerant vapor is entered fluid reservoir 303 by after the second condenser 302 condensation, the cold-producing medium of second throttle 304 pairs of fluid reservoirs 303 carries out throttling cooling and obtains low-temperature refrigerant, moisturizing from cold water moisturizing pipeline 305 enters the second condenser 302 and is heated, solar thermal collector 201 is entered by the moisturizing after heating, solar thermal collector 201 utilizes solar energy heating water, a hot water part after heating directly enters boiler 111 as hot water for life, a part of hot water drives low pressure generator 104 to generate refrigerant vapour in addition, refrigerant vapour enters the first condenser 105 and is condensed, enter first throttle valve 106 afterwards to be lowered the temperature by throttling, from the cold-producing medium of first throttle valve 106 and second throttle 107 respectively at evaporimeter 107 sweat cooling, hot water in boiler 111 is supplied to resident to use by domestic hot-water supply pipeline 112.
When solar energy and biogas are sufficient all not, first gauge tap, biogas cooling and warming subsystem 100 opened respectively by second gauge tap and the 3rd gauge tap, Solar Energy cooling and heating subsystem 200 and electric energy cooling and warming subsystem 300, now, biogas cooling and warming subsystem 100, Solar Energy cooling and heating subsystem 200 and electric energy cooling and warming subsystem 300 cooperation, biogas in air accumulator 102 drives high pressure generator 103, high pressure generator 103 produce high pressure refrigerant vapor and jointly drive low pressure generator 104 from the hot water of solar thermal collector 201, first condenser 105 carries out condensation to the cold-producing medium from low pressure generator 104, first throttle valve 106 carries out throttling cooling to the refrigeration-grade from the first condensation trap 105, meanwhile, compressor 301 compressed refrigerant vapor obtains high pressure refrigerant vapor, second condenser 302 pairs high pressure refrigerant vapor carries out condensation cooling, condensed cold-producing medium enters fluid reservoir 303, second throttle 304 carries out throttling cooling to the cold-producing medium from fluid reservoir 303, from the cold-producing medium sweat cooling in evaporimeter 107 respectively of first throttle valve 106 and second throttle 304, moisturizing from cold water moisturizing pipeline 305 enters the second condenser 302 and is heated, flow to the import of solar thermal collector 201 afterwards.
The effect of embodiment and effect:
The present embodiment is because have employed structure biogas cooling and warming subsystem 100, Solar Energy cooling and heating subsystem 200 and electric energy cooling and warming subsystem 300 combined cleverly by low pressure generator 104 and evaporimeter 107, so the utilization that the present invention effectively can not only solve the single energy in solar energy and methane energy causes the problem of fluctuation of service can also reduce use to high-grade electric energy by objective condition restriction, improve total energy efficiency.
In addition, the water inlet of the water out of low pressure generator 104 with high pressure generator 103 is connected because have employed by the present embodiment, the structure that the water out of high pressure generator 103 is connected with the circulating water intake of boiler 111, so in time only needing supplying hot water, heat exchange number of times can be reduced, improve the thermal efficiency.
In addition, absorber 108, first condenser 105, second condenser 302 and cooler 403 cooling water pipe connect because have employed by the present embodiment, share the structure of cooling water circulation subsystem 400, compact conformation can also be made so operational efficiency can not only be improved, reduce consumptive material.
Claims (4)
1. a refrigerating and heating systems, is characterized in that, comprising:
Biogas cooling and warming subsystem, Solar Energy cooling and heating subsystem and electric energy cooling and warming subsystem and cooling water circulation subsystem,
Wherein, described biogas cooling and warming subsystem comprises: biogas feeding mechanism, high-voltage generator, low pressure generating means, the first condensing unit, first throttle device, vaporising device, absorption plant and hot water storage device, and connect the connecting pipe of the water out of described low pressure generating means and the water inlet of described high-voltage generator, connect the connecting pipe of the water out of described high-voltage generator and the circulating water intake of described hot water storage device
Described Solar Energy cooling and heating subsystem comprises: low pressure generating means, the first condensing unit, first throttle device, vaporising device, absorption plant, hot water storage device and solar energy heat collector,
Described electric energy cooling and warming subsystem comprises: compression set, the second condensing unit, the second throttling arrangement and vaporising device,
Described biogas cooling and warming subsystem, described Solar Energy cooling and heating subsystem and described electric energy cooling and warming subsystem share vaporising device, described biogas cooling and warming subsystem and described Solar Energy cooling and heating subsystem share low pressure generating means, the first condensing unit, first throttle device, vaporising device, absorption plant and hot water storage device
Described high-voltage generator utilizes the biogas combustion heat dilute solution from biogas feeding mechanism to generate high pressure refrigerant vapor,
Described low pressure generating means makes to carry out heat exchange from the recirculated water in described solar energy heat collector or described hot water storage device, the high pressure refrigerant vapor in described high-voltage generator and the weak solution in described low pressure generating means,
Described hot water storage device stores from the water of low pressure vaporising device or the water of described solar energy heat collector,
Described solar energy heat collector utilizes solar energy to heat the water from described hot water storage device,
Described first condensing unit carries out condensation to the cold-producing medium from described low pressure generating means,
Described first throttle device carries out throttling cooling to from described first condensing unit cold-producing medium,
Described vaporising device evaporates the cold-producing medium from described first throttle device,
Described absorption plant utilization is carried out absorption from the concentrated solution of described high-voltage generator and the concentrated solution of described low pressure generating means to the cold-producing medium from described vaporising device and is obtained weak solution, simultaneously for described high-voltage generator and described low pressure generating means provide weak solution
Described vaporising device also evaporates the cold-producing medium from described second throttling arrangement,
Described compression set carries out compression to the refrigerant vapour from described vaporising device and obtains high pressure refrigerant vapor,
Described second condensing unit carries out condensation to the cold-producing medium from described compression set,
Described second throttling arrangement carries out throttling cooling to the condensing agent from described second condensing unit,
Described cooling water circulation subsystem comprises cooling device and cooling water replenishment pipeline,
The outlet of described cooling device is connected with the cooling water inlet of described absorption plant,
The coolant outlet of described absorption plant is connected with the cooling water inlet of described first condensing unit,
The coolant outlet of described first condensing unit is connected with the cooling water inlet of described second condensing unit,
The coolant outlet of described second condensing unit is connected with the import of described cooling device,
The cooling water inlet of described absorption plant is also connected with described cooling water replenishment pipeline.
2. refrigerating and heating systems according to claim 1, is characterized in that:
Described biogas cooling and warming subsystem also comprises: for controlling open and close first gauge tap of described biogas cooling and warming subsystem,
Described Solar Energy cooling and heating subsystem also comprises: for controlling the second gauge tap of the open and close of described Solar Energy cooling and heating subsystem,
Described electric energy cooling and warming subsystem also comprises: for controlling the 3rd gauge tap of the open and close of described electric energy cooling and warming subsystem.
3. refrigerating and heating systems according to claim 1, is characterized in that:
Wherein, described low pressure generating means is tubular heat exchange device, is provided with heat exchanger tube in described tubular heat exchange device, and described heat exchanger tube centre heat exchanger fin separates.
4. refrigerating and heating systems according to claim 1, is characterized in that:
Wherein, described vaporising device is bushing type vaporising device, and described bushing type vaporising device is made up of inner and outer tubes.
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| JP2002162130A (en) * | 2000-11-21 | 2002-06-07 | Denso Corp | Air conditioner |
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| CN202660661U (en) * | 2012-05-10 | 2013-01-09 | 上海交通大学 | Solar heat pump air conditioner system realizing auxiliary heating and auxiliary refrigeration |
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| US4171619A (en) * | 1978-03-16 | 1979-10-23 | Clark Silas W | Compressor assisted absorption refrigeration system |
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