CN101363683B - Solar heat pump drying system - Google Patents
Solar heat pump drying system Download PDFInfo
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- CN101363683B CN101363683B CN2008101508171A CN200810150817A CN101363683B CN 101363683 B CN101363683 B CN 101363683B CN 2008101508171 A CN2008101508171 A CN 2008101508171A CN 200810150817 A CN200810150817 A CN 200810150817A CN 101363683 B CN101363683 B CN 101363683B
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Abstract
The invention discloses a solar heat pump drying system, which comprises a solar hot-water system, a metal hydride heat pump system and an air drying system that are coupled with one another. The solar hot-water system adopts a forced circulation hot water system, heat energy collected from a solar collector is used as energy driving the metal hydride heat pump system to circulate, and heat energy and cold energy generated when a metal hydride heat pump absorbs and releases hydrogen are used as heat source and cold source of an air heater and an air cooler. Air in the drying chamber is pressurized by an axial-flow fan to be separated out moisture through the air cooler and is heated to required temperature by the air heater respectively, and is sent back to the air drying chamber to complete the drying process. The solar heat pump drying system uses the advantages of solar energy and hydrogen energy simultaneously, and has the characteristics of cleanness, high efficiency, energy conservation, high dehumidification rate, wide application range of drying temperature, accurate control of drying temperature, coupled application with other solar utilization device, and the like.
Description
Technical field
The gas solid reactor that the present invention relates to Application of Solar Energy technology, chemical heat pump, dry technology, heats, freezes, particularly a kind of solar heat pump drying system.
Background technology
Drying is to be extensive use of and the huge processing technology that consumes energy in the industrial and agricultural production, and a large amount of research is all being carried out in the power-saving technology to drying process in countries in the world.As a kind of heat pump drying system of novel energy-conserving technology,, thereby become the focus of people's research gradually because its more conventional pneumatic conveying drying has remarkable advantages aspect energy resource consumption and the drying cost.The heat pump drying system is a kind of dehumidification equipment that does not adopt electrical heating wire heating or other thermal source radiation heating.Traditional heat pump drying system class is similar to common refrigeration system, and alternately vaporization and liquefaction when the continuous work by compressor and expansion valve is flowed medium circulation allows evaporimeter cooling, condenser heat supply.During heat pump drier work, by circulating fan air is circulated between hothouse and heat pump, when air process evaporimeter, temperature drops to below the dew point, and separates out moisture content, is discharged to the external world along drainpipe, wet heating such as the air process cooler surface after the removal moisture drying improve is sent to hothouse its year after the wet ability, be used to absorb the moisture content of material evaporation, then flow back to evaporimeter again, so circulate and make dry materials.Therefore, the heat pump drying system have energy consumption low, do not injure advantages such as material.The heat pump drying system that is developed at present mainly contains following a few class:
(1) compression-vaporation-type heat pump drying system: traditional compression-vaporation-type heat pump drying system mainly is divided into three kinds of forms: open type, enclosed, semi-open type.System constitutes with common Compression Evaporation formula refrigeration system similar, and refrigeration working medium adopts the freon series product.(Chen Dong, Xie Jihong. heat pump techniques and application thereof [M] Beijing: Chemical Industry Press, 2006:267-273) this type of heat pump drying system has characteristics such as simple in structure, compact, easy to operate, applied widely; But owing to adopt freon, environment is had destruction, and to adopt electric energy be the heat pump drive energy, thereby rate SMER (kg/kWh) value that causes on average dehumidifying is on the low side as working medium.This becomes uses the main shortcoming of this type of heat pump.
(2) CO
2The heat pump drying system: for solving the conventional heat pump drying system environment is had the problem of destruction, the related personnel has proposed a kind of employing CO
2Heat pump drying system as working medium.This type of heat pump has advantages such as cleaning, efficient, environmental protection, if with the decompressor combined cycle can improve the dehumidifying rate (Ceng Xianyang, Ma Yitai, Li Minxia. carbon dioxide heat-pump dry technology .[J] Chinese agricultural machanization 2005 (3): 44-46).Yet this type of heat pump need be developed and be suitable for CO
2Stride the compressor of critical cycle and evaporimeter, condenser, technical difficulty is big, and cost is higher, has therefore limited its popularization.
(3) microwave-heat pump united drying system: this type of drying system be coupled microwave drying technology and heat pump drying technology have constituted novel joint drying system.(Malaysian is far away, Yu Yongzhang. heat pump microwave combining drying system research .[J] and Chemical Engineering 2000,28 (2): 27-30) it has cleaning, efficient, advantage such as rate of drying is fast.But because microwave technology power consumption is bigger, so energy consumption is higher, thereby causes the dehumidifying rate lower.
(4) chemical heat pump drying system: this type systematic adopts CaO/H
2O/Ca (OH)
2As the working cycles medium.By CaO and H
2Absorption between the O and desorption are realized the effect of heat release and refrigeration.(OgruraH, S Yasuda, Y Otsubo, et al Continuous operation of a chemical heatpump[C] IDS 2006; Budapest, Hungary, 20-23August 2006:779-783.) because this type of heat pump is drive energy with heat energy, can utilize low-grade industrial exhaust heat, solar source etc., therefore has advantage energy-conservation, cleaning.Yet the unit of this type of heat pump freezes, heating capacity is lower, and totally dehumidifying rate is on the low side.
(5) combined cycle of solar energy drying and heat pump: solar energy drying system and heat pump drying system are combined, and in the dry run, the heat supply of hothouse and hydrofuge are born jointly by solar energy heat distribution system and heat pump dehumidification system.(Zhang Biguang. the experimental study .[J of solar energy-heat pump combined drying timber] solar energy journal 2007,28 (8): but 870-873) the two both isolated operation also can unite use, this system extension the meteorological condition that is suitable for when using separately of solar energy drying system, make full use of the advantage of heat pump drying and solar energy drying, formed mutual supplement with each other's advantages.But, this type of heat pump remains traditional compression-vaporation-type heat pump, is still waiting in this respect to improve.
In sum, because various defectives, existing heat pump drying system also has very big development space at system's design, environmental protection, aspect such as energy-conservation, can't effectively realize energy-conservation, cleaning, the high target of dehumidifying rate.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving and environmental protection, dehumidifying rate height, can effectively improve the solar heat pump drying system of the energy efficiency of drying system.
For achieving the above object, the technical solution used in the present invention is: comprise solar water heating system, metal hydride heat pump system air drying system: said solar water heating system comprises solar thermal collector, the outlet of solar thermal collector and inlet are connected with high-temperature water tank by pipeline respectively, and also are connected with first water circulating pump on the entrance pipe of solar thermal collector; Said metal hydride heat pump system draws together and is filled with MH
1First and third metal hydride reactor, be filled with MH
2Second, four metal hydride reactors, the MH that fills in the said first and third metal hydride reactor (A, C)
1Be ZrCr
0.6Fe
1.4, LaNi
4.65Mn
0.38Or LaNi
4.83Mn
0.17Alloy; The second, the MH that fills in the four metal hydride reactors (B, D)
2Be Ce
1.1Ni
2.5Cu
2.5, LaNi
4.95Mn
0.05Or Zr
0.8Ti
0.2Cr
0.6Fe
1.4Alloy; The first metal hydride reactor is by Hydrogen Line and be arranged on that the 19 control valve on this pipeline is connected with the second metal hydride reactor, the 3rd metal hydride reactor is connected with the 4th metal hydride reactor by Hydrogen Line and the 20 control valve that is arranged on this pipeline; The inlet of the first metal hydride reactor is connected with high-temperature water tank by entrance pipe, and this entrance pipe is provided with the 3rd control valve and second water circulating pump, and the outlet of the first metal hydride reactor is connected with high-temperature water tank by export pipeline and the 4th control valve that is arranged on this export pipeline; The export pipeline of middle reservoir is provided with the 3rd water circulating pump, the inlet of second and third metal hydride reactor entrance pipe by separately respectively is connected with the 3rd water circulating pump, and on the entrance pipe of second and third metal hydride reactor, be respectively arranged with the 6th control valve and the tenth control valve, the outlet of second and third metal hydride reactor export pipeline by separately respectively is connected with middle reservoir, and is respectively arranged with the 7th control valve and the 14 control valve at the export pipeline of second and third metal hydride reactor; The inlet of the 4th metal hydride reactor is connected with low temperature water tank by entrance pipe, and this entrance pipe is provided with the 16 control valve and the 4th water circulating pump, and the outlet of the 4th metal hydride reactor is connected with low temperature water tank by export pipeline and the 18 control valve that is arranged on this export pipeline; The inlet of the 3rd control valve on the first metal hydride reactor inlet pipeline also is connected by pipeline and the outlet that is installed in the tenth control valve on the 5th control valve and the 3rd metal hydride reactor inlet pipeline on this pipeline, and the outlet of the 3rd control valve of the first metal hydride reactor inlet pipeline also is connected by pipeline and the inlet that is installed in the tenth control valve on the 8th control valve and the 3rd metal hydride reactor inlet pipeline on this pipeline; The inlet of the 4th control valve on the first metal hydride reactor outlet pipeline also is connected by pipeline and the outlet that is installed in the 14 control valve on the 11 control valve and the 3rd metal hydride reactor outlet pipeline on this pipeline, and the outlet of the 4th control valve of the first metal hydride reactor outlet pipeline also is connected by pipeline and the inlet that is installed in the 14 control valve on the 12 control valve and the 3rd metal hydride reactor C export pipeline on this pipeline; The inlet of the 6th control valve on the second metal hydride reactor inlet pipeline also is connected by pipeline and the outlet that is installed in the 16 control valve on the 13 control valve and the 4th metal hydride reactor inlet pipeline on this pipeline, and the outlet of the 6th control valve of the second metal hydride reactor inlet pipeline also is connected by pipeline and the inlet that is installed in the 16 control valve on the 15 control valve and the 4th metal hydride reactor inlet pipeline on this pipeline; The inlet of the 7th control valve on the second metal hydride reactor outlet pipeline also is connected by pipeline and the outlet that is installed in the 18 control valve on the 9th control valve and the 4th metal hydride reactor outlet pipeline on this pipeline, and the outlet of the 7th control valve of the second metal hydride reactor outlet pipeline also is connected by pipeline and the inlet that is installed in the 18 control valve on the 17 control valve and the 4th metal hydride reactor outlet pipeline on this pipeline; Said air dryer systems comprises toilet, aerial cooler, air heater and the hothouse that links to each other successively, hothouse links to each other with air cleaning room by pipeline and the axial flow blower that is arranged on this pipeline, the upper and lower end of low temperature water tank respectively by the going into of pipeline and aerial cooler, export and be connected, and the entrance pipe of low temperature water tank and aerial cooler is provided with the 5th water circulating pump, and the delivery port of air heater lower end also is connected with high-temperature water tank, low temperature water tank by the 6th water circulating pump.
Also be provided with auxiliary thermal source in the high-temperature water tank of the present invention; Be separately installed with solar thermal collector inlet valve and solar thermal collector outlet valve on the inlet of the solar thermal collector that is connected with high-temperature water tank and the outlet conduit; The MH that fills in the first and third metal hydride reactor
1Be ZrCr
0.6Fe
1.4, LaNi
4.65Mn
0.38Or LaNi
4.83Mn
0.17Alloy; The second, the MH that fills in the four metal hydride reactors
2Be Ce
1.1Ni
2.5Cu
2.5, LaNi
4.95Mn
0.05Or Zr
0.8Ti
0.2Cr
0.6Fe
1.4Alloy; The lower end of aerial cooler also is provided with condensate pipe; The outlet of air heater and high-temperature water tank TH is provided with temperature sensor, and the pipeline of the 6th water circulating pump rear end is provided with a temperature-sensing valve that is connected with temperature sensor, and high-temperature water tank and low temperature water tank are connected with air heater by temperature-sensing valve respectively; Hydride reactor is a micro-via type chemical heat pump reactor; Control valve adopts the full-automatic electronic control valve.
The present invention adopts solar water heating system and metal hydride heat pump system, solar water heating system provides operation institute calorific requirement for the metal hydride heat pump system, after the superheated water heating, between the metal hydride reactor, produce flowing of hydrogen, and then the effect that produces refrigeration and heat.Dry chamber air heater and the required heat exchanging fluid of aerial cooler are provided by the individual hot water storage tank of circulating pump through the metal hydride heat pump system.Dry air reaches the dehumidifying purpose through aerial cooler and air heater respectively, thereby realizes the target of dried material.
Description of drawings
Fig. 1 is the structural representation of system of the present invention;
Fig. 2 is van ' the t Hoff curve map of metal hydride heat pump cyclic process, and wherein abscissa is that (unit: 1/K), ordinate is a pressure (unit: Pa) to inverse temperature;
Fig. 3 is air circulation enthalpy-wet figure, and wherein abscissa is air water capacity (a units water/kg dry air), and ordinate is an air enthalpy (unit: KJ/Kg);
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, the present invention includes solar water heating system I, the II of metal hydride heat pump system and air dryer systems III,
Said solar water heating system I comprises solar thermal collector 1, the outlet of solar thermal collector 1 and inlet respectively by pipeline with in be provided with auxiliary thermal source 2 high-temperature water tank TH be connected, be separately installed with solar thermal collector inlet valve V1 and solar thermal collector outlet valve V2 on the inlet of the solar thermal collector 1 that high-temperature water tank TH is connected and the outlet conduit, and on the entrance pipe of solar thermal collector 1, also be connected with the first water circulating pump P1;
The said metal hydride heat pump II of system comprises and is filled with ZrCr
0.6Fe
1.4, LaNi
4.65Mn
0.38Or LaNi
4.83Mn
0.17First and third metal hydride micro-via type chemical heat pump reactor A, C, be filled with Ce
1.1Ni
2.5Cu
2.5, LaNi
4.95Mn
0.05Or Zr
0.8Ti
0.2Cr
0.6Fe
1.4Second, four metal hydride micro-via type chemical heat pump reactor B, D, the first metal hydride reactor A is by Hydrogen Line and be arranged on that the 19 control valve V19 on this pipeline is connected with the second metal hydride reactor B, the 3rd metal hydride reactor C is by Hydrogen Line and be arranged on the 20 control valve V20 and the 4th metal hydride reactor D on this pipeline;
The inlet of the first metal hydride reactor A is connected with high-temperature water tank TH by entrance pipe, and this entrance pipe is provided with the 3rd control valve V3 and the second water circulating pump P2, and the outlet of the first metal hydride reactor A is connected with high-temperature water tank TH by export pipeline and the 4th control valve V4 that is arranged on this export pipeline;
The export pipeline of middle reservoir TM is provided with the 3rd water circulating pump P3, second, three metal hydride reactor B, the inlet of the C entrance pipe by separately respectively is connected with the 3rd water circulating pump P3, and second, three metal hydride reactor B, be respectively arranged with the 6th control valve V6 and the tenth control valve V10 on the entrance pipe of C, second, three metal hydride reactor B, the outlet of the C export pipeline by separately respectively is connected with middle reservoir TM, and second, three metal hydride reactor B, the export pipeline of C is respectively arranged with the 7th control valve V7 and the 14 control valve V14;
The inlet of the 4th metal hydride reactor D is connected with low temperature water tank TL by entrance pipe, and this entrance pipe is provided with the 16 control valve V16 and the 4th water circulating pump P4, and the outlet of the 4th metal hydride reactor D is connected with low temperature water tank TL by export pipeline and the 18 control valve V18 that is arranged on this export pipeline;
The inlet of the 3rd control valve V3 on the first metal hydride reactor A entrance pipe also is connected by pipeline and the outlet that is installed in the tenth control valve V10 on the 5th control valve V5 and the 3rd metal hydride reactor C entrance pipe on this pipeline, and the outlet of the 3rd control valve V3 of the first metal hydride reactor A entrance pipe also is connected by pipeline and the inlet that is installed in the tenth control valve V10 on the 8th control valve V8 and the 3rd metal hydride reactor C entrance pipe on this pipeline;
The inlet of the 4th control valve V4 on the first metal hydride reactor A export pipeline also is connected by pipeline and the outlet that is installed in the 14 control valve V14 on the 11 control valve V11 and the 3rd metal hydride reactor C export pipeline on this pipeline, and the outlet of the 4th control valve V4 of the first metal hydride reactor A export pipeline also is connected by pipeline and the inlet that is installed in the 14 control valve V10 on the 12 control valve V12 and the 3rd metal hydride reactor C export pipeline on this pipeline;
The inlet of the 6th control valve V6 on the second metal hydride reactor B entrance pipe also is connected by pipeline and the outlet that is installed in the 16 control valve V16 on the 13 control valve V13 and the 4th metal hydride reactor D entrance pipe on this pipeline, and the outlet of the 6th control valve V6 of the second metal hydride reactor B entrance pipe also is connected by pipeline and the inlet that is installed in the 16 control valve V16 on the 15 control valve V15 and the 4th metal hydride reactor D entrance pipe on this pipeline;
The inlet of the 7th control valve V7 on the second metal hydride reactor B export pipeline also is connected by pipeline and the outlet that is installed in the 18 control valve V18 on the 9th control valve V9 and the 4th metal hydride reactor D export pipeline on this pipeline, and the outlet of the 7th control valve V7 of the second metal hydride reactor B export pipeline also is connected by pipeline and the inlet that is installed in the 18 control valve V18 on the 17 control valve V17 and the 4th metal hydride reactor D export pipeline on this pipeline;
Said air dryer systems III comprises the toilet 4 that links to each other successively, aerial cooler 5, air heater 6 and hothouse 7, hothouse 7 links to each other with air cleaning room 4 by pipeline and the axial flow blower 8 that is arranged on this pipeline, on the low temperature water tank TL, the lower end is going into by pipeline and aerial cooler 5 respectively, outlet is connected, the lower end of aerial cooler 5 also is provided with condensate pipe 9, and the entrance pipe of low temperature water tank TL and aerial cooler 5 is provided with the 5th water circulating pump P5, the delivery port of air heater 6 lower ends is also by the 6th water circulating pump P6 and high-temperature water tank TH, low temperature water tank TM is connected, air heater 6 is provided with temperature sensor 10 with the outlet of high-temperature water tank TH, the pipeline of the 6th water circulating pump P6 rear end is provided with a temperature-sensing valve 3 that is connected with temperature sensor 10, and high-temperature water tank TH and low temperature water tank TM are connected with air heater 6 by temperature-sensing valve 3 respectively.
Elaborate the operation principle and the workflow of this 3 part below respectively.
(I) solar water heating system: recirculated water is sent in the solar thermal collector 1 by the first water circulating pump P1, flow into high-temperature water tank TH after absorbing solar energy heating, again send into solar thermal collector 1 by the first water circulating pump P1 after the heat exchange in being built in high-temperature water tank, constitute circulation.Retaining when the solar radiation quantity not sufficient in the unlatching auxiliary thermal source 2 heating high-temperature water tanks is to the needs temperature.
(II) metal hydride heat pump system: filling hydrogen bearing alloy MH in first and third metal hydride reactor A among Fig. 1 and the C
1, filling hydrogen bearing alloy MH in second, four metal hydride reactor B and the D
2The second, four metal hydride reactor B and D alternately with low-temperature heat source TL and in warm source TM connect, make H
2Between pairing MH, move and carry out heat pump cycle.The first metal hydride reactor A is driven the hydrogen of emitting after the heat source high temp water tank TH heating and flows to the second metal hydride reactor B, inhales that to produce temperature behind the hydrogen be during the heat of TM is discharged among the reservoir TM; The 4th metal hydride reactor D makes low temperature water tank TL cooling, emits hydrogen and flows to the 3rd metal hydride reactor C, inhale the heat that produces behind the hydrogen be discharged among the warm source TM.Thermal source alternately switches, and just can alternately obtain cold output continuously in second, four metal hydride reactor B and D.Van ' the t Hoff change curve of metal hydride heat pump cyclic process as shown in Figure 2.
When ZrCr is housed
0.6Fe
1.4, LaNi
4.65Mn
0.38Or LaNi
4.83Mn
0.17The first metal hydride reactor A absorb heat Q from high-temperature water tank TH
HBack (corresponding to the state point 1 on Vant ' the t Hoff curve), hydrogen desorbs from the first metal hydride reactor A, flows under differential pressure action Ce is housed
1.1Ni
2.5Cu
2.5, LaNi
4.95Mn
0.05Or Zr
0.8Ti
0.2Cr
0.6Fe
1.4The second metal hydride reactor B in and take place to inhale H-H reaction therein, under middle reservoir TM, emit heat of hydrogenation Q
M2(state point 2); Simultaneously, Ce is housed
1.1Ni
2.5Cu
2.5, LaNi
4.95Mn
0.06Or Zr
0.8Ti
0.2Cr
0.6Fe
1.4The 4th metal hydride reactor D from low temperature water tank TL, absorb heat Q
LBack (state point 3), the hydrogen stream of separating sucking-off is to ZrCr is housed
0.6Fe
1.4, LaNi
4.65Mn
0.38Or LaNi
4.83Mn
0.17The 3rd metal hydride reactor C, carry out hydrogenation and under middle reservoir TM, emit heat Q
M1(state point 4); Close the 19 and the 20 control valve P19, P20 on the hydrogen pipeline this moment, links to each other (state point 1) half working cycles (1 → 2 → 3 → 4 → 1) of end MHHP with former thermal source after making the mutual heat exchange of metal hydride reactor; Then since the second metal hydride reactor B, half working cycles in addition.
The switching of system heat sources realizes (as Fig. 1) by each valve opening and closing in the pipeline.As the first metal hydride reactor A and high-temperature water tank TH, second and third metal hydride reactor B, C and middle reservoir TM, when the 4th metal hydride reactor D is connected with low temperature water tank TL, open the 3rd control valve V3, the 4th control valve V4, the 6th control valve V6, the 7th control valve V7, the tenth control valve V10, the 14 control valve V14, the 16 control valve V16 and the 18 adjusting V18; Close the 5th control valve V5, the 8th control valve V8, the 9th control valve V9, the 11 control valve V11, the 12 control valve V12, the 13 control valve V13, the 15 control valve V15 and the 17 control valve V17 simultaneously; At this moment, high temperature circulation water is sent in the first metal hydride reactor A by the second water circulating pump P2, returns high-temperature water tank TH after the heat exchange; In warm recirculated water send among second and third metal hydride reactor B, the C by the 3rd water circulating pump P3, return after the heat exchange in reservoir TM; Water at low temperature is sent among the 4th metal hydride reactor D by the 4th water circulating pump P4, returns low temperature water tank TL after the heat exchange.As the 3rd metal hydride reactor C and high-temperature water tank TH, first, fourth metal hydride reactor A, D and middle reservoir TM, when the second metal hydride reactor B is connected with low temperature water tank TL, open the 5th control valve V5, the 8th control valve V8, the 9th control valve V9, the 11 control valve V11, the 12 control valve V12, the 13 control valve V13, the 15 control valve V15 and the 17 control valve V17; Close the 3rd control valve V3, the 4th control valve V4, the 6th control valve V6, the 7th control valve V7, the tenth control valve V10, the 14 control valve V14, the 16 control valve V16 and the 18 control valve V18 simultaneously; This moment, high temperature circulation water was sent among the 3rd metal hydride reactor C by the second water circulating pump P2, flowed back to high-temperature water tank TH after the heat exchange; In warm recirculated water send among first, fourth metal hydride reactor A, the D by the 3rd water circulating pump P3, return after the heat exchange in reservoir TM; Water at low temperature is sent in the second metal hydride reactor B by the 4th water circulating pump P4, returns low temperature water tank TL after heat exchange.
The metal hydride reactor adopts micro-via type chemical heat pump reactor, in order to the inside heat exchange that strengthens the reflection bed to improve reactivity.
(III) air dryer systems: as shown in Figure 3, humid air (state 1 ') in the hothouse is sent into air cleaning room 4 by axial flow blower 8, the aerial cooler 5 of flowing through after purifying is separated out condensed water (state 1 '-2 '-2 "); then pass through air heater 6 (state 2 "-3 ') and enter hothouse 7, finish dry run.
Among the air dryer systems III, cooling water is sent into heat exchange among the low temperature water tank TL through the 5th water circulating pump P5, and the cooling back flows into aerial cooler 5.Add hot water heat exchange among reservoir TM and the high-temperature water tank TH in the 6th water circulating pump P6 sends into respectively, the air heater 6 of flowing through after two parts fluid after the heating mixes, the water yield that enters two water tanks is regulated by the temperature-sensing valve 3 that is located at behind the 6th water circulating pump P6.This temperature-sensing valve is provided with temperature sensor in air heater 6 and high-temperature water tank exit, the water yield of reservoir and high-temperature water tank in flowing into respectively by the control of the temperature sensed, by obtaining design temperature after the mixing of the water yield under the different temperatures, therefore can provide the temperature that adds hot water as required, realize the accurate control of baking temperature.Among the solar water heating system I, the hot water of recirculated water in heat exchanger and high-temperature water tank carries out heat exchange.Owing to adopted the indirect heat exchange mode, can effectively reduce the influence of solar heat fluctuation to system thermal stability.
Claims (7)
1. a solar heat pump drying system comprises solar water heating system I, the II of metal hydride heat pump system and air dryer systems III, it is characterized in that:
Said solar water heating system I comprises solar thermal collector (1), the outlet of solar thermal collector (1) and inlet are connected with high-temperature water tank (TH) by pipeline respectively, and also are connected with first water circulating pump (P1) on the entrance pipe of solar thermal collector (1);
The said metal hydride heat pump II of system comprises and is filled with MH
1First and third metal hydride reactor (A, C), be filled with MH
2Second, four metal hydride reactors (B, D), the MH that fills in the said first and third metal hydride reactor (A, C)
1Be ZrCr
0.6Fe
1.4, LaNi
4.64Mn
0.38Or LaNi
4.83Mn
0.17Alloy; The second, the MH that fills in the four metal hydride reactors (B, D)
2Be Ce
1.1Ni
2.5Cu
2.5, LaNi
4.95Mn
0.05Or Zr
0.8Ti
0.2Cr
0.6Fe
1.4Alloy;
The first metal hydride reactor (A) is by Hydrogen Line and be arranged on that the 19 control valve (V19) on this pipeline is connected with the second metal hydride reactor (B), the 3rd metal hydride reactor (C) is connected with the 4th metal hydride reactor (D) by Hydrogen Line and the 20 control valve (V20) that is arranged on this pipeline;
The inlet of the first metal hydride reactor (A) is connected with high-temperature water tank (TH) by entrance pipe, and this entrance pipe is provided with the 3rd control valve (V3) and second water circulating pump (P2), and the outlet of the first metal hydride reactor (A) is connected with high-temperature water tank (TH) by export pipeline and the 4th control valve (V4) that is arranged on this export pipeline;
The export pipeline of middle reservoir (TM) is provided with the 3rd water circulating pump (P3), the inlet of second and third metal hydride reactor (B, C) respectively the entrance pipe by separately and the 3rd recirculated water reactor (B, C) outlet respectively the export pipeline by separately be connected with middle reservoir (TM), and be respectively arranged with the 7th control valve (V7) and the 14 control valve (V14) at the export pipeline of second and third metal hydride reactor (B, C);
The inlet of the 4th metal hydride reactor (D) is connected with low temperature water tank (TL) by entrance pipe, and this entrance pipe is provided with the 16 control valve (V16) and the 4th water circulating pump (P4), and the outlet of the 4th metal hydride reactor (D) is connected with low temperature water tank (TL) by export pipeline and the 18 control valve (V18) that is arranged on this export pipeline;
The inlet of the 3rd control valve (V3) on first metal hydride reactor (A) entrance pipe also is connected by pipeline and the outlet that is installed in the tenth control valve (V10) on the 5th control valve (V5) and the 3rd metal hydride reactor (C) entrance pipe on this pipeline, and the outlet of the 3rd control valve (V3) of first metal hydride reactor (A) entrance pipe also is connected by pipeline and the inlet that is installed in the tenth control valve (V10) on the 8th control valve (V8) and the 3rd metal hydride reactor (C) entrance pipe on this pipeline;
The inlet of the 4th control valve (V4) on first metal hydride reactor (A) export pipeline also is connected by pipeline and the outlet that is installed in the 14 control valve (V14) on the 11 control valve (V11) and the 3rd metal hydride reactor (C) export pipeline on this pipeline, and the outlet of the 4th control valve (V4) of first metal hydride reactor (A) export pipeline also is connected by pipeline and the inlet that is installed in the 14 control valve (V10) on the 12 control valve (V12) and the 3rd metal hydride reactor (C) export pipeline on this pipeline;
The inlet of the 6th control valve (V6) on second metal hydride reactor (B) entrance pipe also is connected by pipeline and the outlet that is installed in the 16 control valve (V16) on the 13 control valve (V13) and the 4th metal hydride reactor (D) entrance pipe on this pipeline, and the outlet of the 6th control valve (V6) of second metal hydride reactor (B) entrance pipe also is connected by pipeline and the inlet that is installed in the 16 control valve (V16) on the 15 control valve (V15) and the 4th metal hydride reactor (D) entrance pipe on this pipeline;
The inlet of the 7th control valve (V7) on second metal hydride reactor (B) export pipeline also is connected by pipeline and the outlet that is installed in the 18 control valve (V18) on the 9th control valve (V9) and the 4th metal hydride reactor (D) export pipeline on this pipeline, and the outlet of the 7th control valve (V7) of second metal hydride reactor (B) export pipeline also is connected by pipeline and the inlet that is installed in the 18 control valve (V18) on the 17 control valve (V17) and the 4th metal hydride reactor (D) export pipeline on this pipeline;
Said air dryer systems III comprises the toilet (4) that links to each other successively, aerial cooler (5), air heater (6) and hothouse (7), hothouse (7) links to each other with air cleaning room (4) by pipeline and the axial flow blower (8) that is arranged on this pipeline, on the low temperature water tank (TL), the lower end is going into by pipeline and aerial cooler (5) respectively, outlet is connected, and the entrance pipe of low temperature water tank TL and aerial cooler (5) is provided with the 5th water circulating pump (P5), and the delivery port of air heater (6) lower end is also by the 6th water circulating pump (P6) and high-temperature water tank (TH), low temperature water tank (TM) is connected.
2. solar heat pump drying system according to claim 1 is characterized in that: also be provided with auxiliary thermal source (2) in the said high-temperature water tank (TH).
3. solar heat pump drying system according to claim 1 is characterized in that: be separately installed with solar thermal collector inlet valve (V1) and solar thermal collector outlet valve (V2) on the inlet of the said solar thermal collector (1) that is connected with high-temperature water tank (TH) and the outlet conduit.
4. solar heat pump drying system according to claim 1 is characterized in that: the lower end of said aerial cooler (5) also is provided with condensate pipe (9).
5. solar heat pump drying system according to claim 1, it is characterized in that: said air heater (6) is provided with temperature sensor (10) with the outlet of high-temperature water tank (TH), the pipeline of the 6th water circulating pump (P6) rear end is provided with a temperature-sensing valve (3) that is connected with temperature sensor (10), and high-temperature water tank (TH) and low temperature water tank (TM) are connected with air heater (6) by temperature-sensing valve (3) respectively.
6. solar heat pump drying system according to claim 1 is characterized in that: said hydride reactor is a micro-via type chemical heat pump reactor.
7. solar heat pump drying system according to claim 1 is characterized in that: said control valve adopts the full-automatic electronic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101508171A CN101363683B (en) | 2008-09-05 | 2008-09-05 | Solar heat pump drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101508171A CN101363683B (en) | 2008-09-05 | 2008-09-05 | Solar heat pump drying system |
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| Publication Number | Publication Date |
|---|---|
| CN101363683A CN101363683A (en) | 2009-02-11 |
| CN101363683B true CN101363683B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101508171A Expired - Fee Related CN101363683B (en) | 2008-09-05 | 2008-09-05 | Solar heat pump drying system |
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| CN (1) | CN101363683B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512343B (en) * | 2013-09-17 | 2015-07-15 | 江苏天舒电器有限公司 | Heat pump dryer capable of recycling process air |
| CN104748540A (en) * | 2015-04-01 | 2015-07-01 | 洛阳中启动力科技有限公司 | Double-temperature-multi-control type heat pump concentrated drying device |
| CN106168199B (en) * | 2016-08-30 | 2019-03-12 | 高振刚 | A kind of house hydrogen energy source system and the Stirling conjuncted machine of power generation-heat pump self |
| CN106509093B (en) * | 2016-12-15 | 2023-07-21 | 扬州大学 | Solar energy festival thermal cycle formula grain drying equipment |
| CN108759328A (en) * | 2018-06-28 | 2018-11-06 | 江苏必领能源科技有限公司 | The enclosed dehumidifying more drying chamber drying systems of water-water heat pump |
| CN109059442B (en) * | 2018-07-20 | 2023-10-24 | 广东工业大学 | Heat storage type solar heat pump combined drying method |
| CN110715542A (en) * | 2019-10-15 | 2020-01-21 | 武汉丰盈能源技术工程有限公司 | System for drying biomass and municipal domestic waste by using solar heat |
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|---|---|---|---|---|
| US4044819A (en) * | 1976-02-12 | 1977-08-30 | The United States Of America As Represented By The United States Energy Research And Development Administration | Hydride heat pump |
| JP2000346483A (en) * | 1999-06-03 | 2000-12-15 | Sekisui Chem Co Ltd | Heat pump |
| CN1482017A (en) * | 2003-06-26 | 2004-03-17 | 上海交通大学 | Vehicle air-condition with two-stage metal hydride |
| CN2709884Y (en) * | 2004-06-08 | 2005-07-13 | 河南新飞电器有限公司 | Cold-storage air-conditioning system of cold producing by solar energy |
| CN2721436Y (en) * | 2004-06-08 | 2005-08-31 | 河南新飞电器有限公司 | Energy storing air conditioner system by vehicle tail gas |
| CN1888725A (en) * | 2006-07-13 | 2007-01-03 | 上海交通大学 | Single alloy compressing-diffusing metal hydride heat pump/refrigerating method and system |
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- 2008-09-05 CN CN2008101508171A patent/CN101363683B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044819A (en) * | 1976-02-12 | 1977-08-30 | The United States Of America As Represented By The United States Energy Research And Development Administration | Hydride heat pump |
| JP2000346483A (en) * | 1999-06-03 | 2000-12-15 | Sekisui Chem Co Ltd | Heat pump |
| CN1482017A (en) * | 2003-06-26 | 2004-03-17 | 上海交通大学 | Vehicle air-condition with two-stage metal hydride |
| CN2709884Y (en) * | 2004-06-08 | 2005-07-13 | 河南新飞电器有限公司 | Cold-storage air-conditioning system of cold producing by solar energy |
| CN2721436Y (en) * | 2004-06-08 | 2005-08-31 | 河南新飞电器有限公司 | Energy storing air conditioner system by vehicle tail gas |
| CN1888725A (en) * | 2006-07-13 | 2007-01-03 | 上海交通大学 | Single alloy compressing-diffusing metal hydride heat pump/refrigerating method and system |
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| CN101363683A (en) | 2009-02-11 |
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