CN202304194U - Cool-storage type solar energy adsorption refrigeration house - Google Patents
Cool-storage type solar energy adsorption refrigeration house Download PDFInfo
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- CN202304194U CN202304194U CN201120293703XU CN201120293703U CN202304194U CN 202304194 U CN202304194 U CN 202304194U CN 201120293703X U CN201120293703X U CN 201120293703XU CN 201120293703 U CN201120293703 U CN 201120293703U CN 202304194 U CN202304194 U CN 202304194U
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Abstract
The utility model discloses a cool-storage type solar energy adsorption refrigeration house. An adsorption refrigeration generator is formed by six adsorbent beds, five of the adsorbent beds are in a cooling adsorption state, the other adsorbent bed is in a heating desorption state, desorption can generate refrigerating fluid gas, ammonia serving as refrigerating fluid is connected with a condenser, an enlarged liquid storage tank, a throttling valve, a refrigeration house with an evaporator and the adsorbent beds, steam generated by a solar steam boiler is used as a heat source, generators of the six adsorbent beds are used for desorbing and adsorbing the ammonia to form an ammonia circulating cooling loop, a PLC (programmable logic controller) is adopted to perform program control to a steam input program control valve bank, a condensate water recovery program control valve bank, a cooling water input program control valve bank and a cooling water discharge program control valve bank, so that steam input, condensate water recovery, cooling water input, cooling water discharge are accorded with the setting programs, and the generators of the six adsorbent beds perform cooling adsorption and heating desorption according to the setting programs, thereby achieving the expected adsorption and cooling effect.
Description
Technical field
The utility model relates to a kind of adsorb refrigerating device, is specifically related to the cold storage type solar adsorption-type refrigerating freezer with the liquid reservoir of six adsorbent beds and increasing.
Background technology
Solar energy is a kind of inexhaustible green energy resource, is absorption refrigeration technical field dream for many years with the absorption refrigeration freezer of Driven by Solar Energy.But; Because solar energy is bad in continuity, the stability of diel in the time; And the influence of Changes in weather; Add the freezer normal operation and should guarantee that its evaporating temperature reaches-30 ℃ with inferior factor, making present absorption refrigeration technology is being under the condition of driving force with solar energy, can not realize the normal operation of freezer.The solar powered adsorption refrigeration freezer is difficult to realize that existing freezer is motor compressor formula freezer on engineering.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency that above-mentioned existing absorption refrigeration technology exists; A kind of cold storage type solar adsorption-type refrigerating freezer is provided, the steam that the utility model utilizes solar energy steam boiler to provide, utilization " multigenerator absorption refrigeration principle "; With steam driven cold storage type six adsorbent bed absorbing refrigeration systems; Drive the operation of absorption refrigeration freezer, make that the ammonia evaporating temperature reaches below-30 ℃ in the freezer, and have enough refrigerating capacitys.The receiver of six adsorbent beds and increasing is the peculiar structure of cold storage type, and this cold storage type structure can be kept the normal operation of absorption type refrigerating freezer at the night of no solar energy.Recently come, by the development of sky solar energy heating technology, the solar energy steam boiler patented product supply the market that prior art is ripe satisfies the specification requirement of the utility model to the steam source of sun the subject of knowledge and the object of knowledge generation.This cold storage type solar powered adsorption refrigeration freezer has enough big refrigerating capacity when realizing that the ammonia evaporating temperature reaches below-30 ℃, and the continuity of refrigeration is better with stability; The cryogenic temperature fluctuation is less; Be used for a day solar energy abundant area, to substitute conventional electric-powered compressor formula refrigeration freezer, more suitable in no electrical network area; Reach and utilize solar energy to carry out energy-conservation, the reduction of discharging of freezer refrigerating, the purpose of environmental protection; Open up the green energy resource freezer for solar energy enriches the area, satisfy of the requirement of the abundant area of solar energy, make freezing, the cold storing and fresh-keeping of food, agricultural byproducts a kind of new way of utilizing solar energy as the energy occur the solar energy freezer.
The technical scheme of the utility model is:
Cold storage type solar adsorption-type refrigerating freezer comprises six adsorbent beds (1,2,3,4; 5,6), two check valve set (7,8), condenser 9, the receiver 10, the choke valve 11 that strengthen, the freezer 13 that includes evaporimeter 12, PLC Programmable Logic Controller 70, solar thermal collector 14, solar energy steam boiler 15, steam input sequencing valve group 16, condensed water reclaim sequencing valve group 17, cooling water input sequencing valve group 18, cooling water discharge sequencing valve group 19, said six adsorbent beds (1,2; 3,4,5,6) refrigerant outlet of each adsorbent bed is communicated with the refrigerant inlet end of condenser 9 through first check valve set 7 in, and the refrigerant outlet end of condenser 9 is communicated with the inlet of the receiver 10 that strengthens; And the port of export of the receiver that strengthens is communicated with the inlet of evaporimeter 12 in being included in freezer 13 through choke valve 11, and refrigerant outlet end warp second check valve set 8 of evaporimeter 12 is communicated with the refrigerant inlet separately of six adsorbent beds respectively, and steam is imported sequencing valve group 16 by six electronic steam valves (41,42,43; 44,45,46) form, condensed water reclaims sequencing valve group 17 by six dynamoelectric water valves (51,52; 53,54,55,56) form; Cooling water input sequencing valve group 18 is by six dynamoelectric water valves (61,62,63,64; 65,66) form, cooling water is discharged sequencing valve group 19 by six dynamoelectric water valves (71,72; 73,74,75,76) form; PLC Programmable Logic Controller 70 reclaims sequencing valve group 17 with steam input sequencing valve group 16, condensed water respectively, cooling water input sequencing valve group 18 is connected with each motor-driven valve that cooling water is discharged in the sequencing valve group 19; Corresponding adsorbent bed connects in each electronic steam valve in the steam input sequencing valve group 16 and six adsorbent beds (1,2,3,4,5,6), and condensed water reclaims each dynamoelectric water valve and six adsorbent beds (1 in the sequencing valve group 17; 2,3,4,5,6) adsorbent bed corresponding in connects, each dynamoelectric water valve and six adsorbent beds (1,2 in the cooling water input sequencing valve group 18; 3,4,5,6) adsorbent bed corresponding in connects, and cooling water is discharged each dynamoelectric water valve and six adsorbent beds (1,2 in the sequencing valve group 19; 3,4,5,6) adsorbent bed corresponding in connects, and steam 36 is through steam input sequencing valve group 16 and each adsorbent bed (1,2; 3,4,5,6) be linked to be the loop, condensed water reclaims sequencing valve group 17 and each adsorbent bed (1,2; 3,4,5,6) be linked to be the loop, cooling water input sequencing valve group 18 and each adsorbent bed (1,2; 3,4,5,6) and cooling water discharge sequencing valve group 19 and be linked to be the loop, first check valve set 7 is communicated with condensers 9, the receiver 10 that strengthens, choke valve 11, evaporimeter 12, check valve set 8, six adsorbent beds (1,2; 3,4,5,6), form refrigerant loop, produce refrigerating capacitys and supply with freezers 13 and keep freezer and normally move by being included in evaporimeter 12 in the freezer 13.
Steam input sequencing valve group 16 contains six electronic steam valves, six corresponding six adsorbent beds of electronic steam valve.Condensed water reclaims sequencing valve group 17 and contains six dynamoelectric water valves, six corresponding six adsorbent beds of dynamoelectric water valve.Cooling water input sequencing valve group 18 contains six dynamoelectric water valves, six corresponding six adsorbent beds of dynamoelectric water valve, and cooling water is discharged sequencing valve group 19 and is contained six dynamoelectric water valves, six corresponding six adsorbent beds of dynamoelectric water valve.
Said adsorbent bed shell body 26 is provided with between steam input pipe 20, cold-producing medium turnover conduit 39, cooling water discharge pipe 40, water inlet pipe 27, remaining cooling water comb 28, condensed water comb 29, drain valve 30, adsorbent bed inner housing 24 and the shell body 26 and is heat-insulation layer 25; The adsorbent bed pipe group 34 that dress is made up of a plurality of unit pipes 23 in the inner housing 24, pipe group top is collection ammonia pipe 33.Dress fin 21 and adsorbent 22 in the unit pipes 23, there is the ventilative core pipe 35 of up/down perforation in the fin centre.Space between space between the unit pipes and unit pipes and the inner housing is steam or cooling-water duct.The condensed water comb 29 of shell body 26 bottoms is communicated with inner housing 24.Cold-producing medium turnover conduit 39 is communicated with collection ammonia pipe 33.Steam input pipe 20 is communicated with inner housing 24.Steam input sequencing valve group 16 is connected with steam input pipe road 20; Condensed water reclaims sequencing valve group 17 and is connected with drain valve 30; Cooling water input sequencing valve group 18 is connected with cooling water inlet pipe 27; Cooling water is discharged sequencing valve group 19 and is connected with cooling water discharge pipe 40, and remaining cooling water comb 28 is connected with water seal arrangement.
Six adsorbent beds (1,2,3,4,5,6) of the utility model and the receiver 10 that strengthens make system have stronger adsorption capacity, desorption ability and cold-producing medium reserve capabillity.Daytime, a certain amount of cold-producing medium ammoniacal liquor of above capacity reserve capable of using.Utilize the proceed absorption refrigeration of the cold-producing medium ammoniacal liquor of deposit at night, to keep the normal operation of freezer by six adsorbent beds (1,2,3,4,5,6) batch by batch and stage by stage.
The employed adsorbent bed of the utility model is six adsorbent bed absorbing refrigeration systems according to " multigenerator absorption refrigeration principle " design; Warp is connected with the PLC Programmable Logic Controller; Press setting program; Can realize that an adsorbent bed is in the heating desorption state, five adsorbent beds are in the absorbing refrigeration system of cooling adsorbed state, and this system can realize ammonia evaporating temperature t
0≤-30 ℃ absorption refrigeration, and refrigerating capacity is enough big, and the continuity of refrigeration is good, good stability, can fully satisfy the specification requirement of freezer refrigerating operation.
Simultaneously, the utility model is provided with the receiver of six adsorbent beds and an increasing in the loop of cold-producing medium, makes the ability of adsorption and desorption stronger, and can in the receiver that strengthens, lay in refrigerant liquids more.Utilize the steam thermal energy of solar energy steam boiler on daytime, as often as possible separate sucking-off cold-producing medium ammonia, deposit is in the receiver 10 that strengthens.At night, when not having solar energy that Steam Heating is provided, the cold-producing medium liquefied ammonia that utilizes many deposits in the receiver that strengthens is by six adsorbent beds (1,2; 3,4,5; 6) carry out the absorption refrigeration state dribs and drabs, still can proceed absorption refrigeration, guarantee that freezer also can normally move at night.The basic principle of cold storage type solar adsorption-type refrigerating freezer normal operation at night that Here it is.
Theoretical Calculation of the utility model and experimental prototype test result show; Under t0=-30 ℃ of condition of ammonia evaporating temperature; The above absorbing refrigeration system that constitutes of six adsorbent beds and six adsorbent beds is when normal operation, and adsorbent contains ammonia concentration height in its adsorbent bed, and the ammonia amount of laying in the adsorbent is big.Compare with four adsorbent bed absorbing refrigeration systems and two adsorbent bed absorbing refrigeration systems, in the adsorbent bed in the maximum concentration V of ammonia and the adsorbent ratio of the total ammonia amount of the highest absorption G see the following form:
(each amount with two adsorbent bed systems in the table is that 1.00 benchmark compare)
From table, can find out: in the six adsorbent bed absorbing refrigeration systems, the highest ammonia concentration ratio two adsorbent bed systems that contain of its adsorbent exceed 189%, exceed 39.6% than four adsorbent bed systems; In the six adsorbent bed absorbing refrigeration systems, the highest adsorb ammonia amount of its adsorbent is 8.67 times of two adsorbent bed systems, is 2.09 times of four adsorbent bed systems.Because in the six adsorbent bed absorbing refrigeration systems; It is higher that its adsorbent contains in the higher and adsorbent of ammonia concentration γ (kg ammonia/kg adsorbent) the highest adsorb ammonia amount G (kg ammonia); Thereby make six adsorbent bed absorbing refrigeration systems have the specific function of a large amount of deposit cold-producing medium ammonia; This is that the former four adsorbent bed absorbing refrigeration systems institute that applies for of our company is inaccessiable, utilizes heat energy that a large amount of ammonia desorptions of laying in the adsorbent are condensed in the liquid reservoir of increasing, just in liquid reservoir, has laid in a large amount of cold-producing medium ammonia; When needed; Need not under the heat energy condition, utilizing, desorption produces enough big refrigerating capacity, the use of cooling storehouse to the cooling suction-operated that contains the lower adsorbent of ammonia concentration.The function of the deposit of the uniqueness that six adsorbent bed absorbing refrigeration systems are had that Here it is, and then have the basic principle of the cold function of storage, Here it is four adsorbent beds and following absorbing refrigeration system thereof can't possess.
Description of drawings
Fig. 1 is the utility model steam input sequencing valve group 16 and condensed water recovery sequencing valve group 17 catenation principle figure.
Fig. 2 is the utility model cooling water input sequencing valve group 18 and cooling water discharge sequencing valve group 19 catenation principle figure.
Fig. 3 is the utility model cold storage type solar adsorption-type refrigerating freezer catenation principle figure.
Fig. 4 is an adsorbent bed structure chart in the utility model.
In the said accompanying drawing, 1,2,3,4,5,6---adsorbent bed 7,8---check valve set; 9---condenser, 10---the receiver of increasing, 11---choke valve, 12---evaporimeter is included in the freezer 13, and 14---solar thermal collector, 15---solar energy steam boiler, 16---steam input sequencing valve group; 17---condensed water reclaims the sequencing valve group, and 18---cooling water input sequencing valve group, 19---cooling water is discharged the sequencing valve group, and 20---steam input pipe, 21---fin, 22---adsorbent 23---unit pipes, 24---inner housing; 25---heat-insulation layer, 26---shell body, 27---cooling water inlet pipe, 28---remaining cooling water comb, 29---the condensed water comb, 30---drain valve, 31---the remaining cooling water of discharge; 32---the condensed water of recovery, 33---the collection refrigerant pipe, 34---the pipe group, 35---ventilative core pipe, 36---steam, the ammonia of 37---being adsorbed the ammonia of entering, 38---desorb output; 39---ammonia turnover conduit, 40---cooling water discharge pipe, 41,42,43,44,45; 46---electronic steam valve, 51,52,53,54,55,56---dynamoelectric water valve; 61,62,63,64,65,66---dynamoelectric water valve, 67---the cooling water of input; 70---the PLC Programmable Logic Controller, 71,72,73,74,75,76---dynamoelectric water valve.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.The used cold-producing medium of the utility model is an ammonia.
Can know from Fig. 3, use the cold storage type solar powered adsorption refrigeration freezer of six adsorbent beds, comprise six adsorbent beds (1; 2,3,4; 5,6), two check valve set (7,8), condenser 9, the receiver 10, the choke valve 11 that strengthen, the freezer 13 that includes evaporimeter 12, PLC Programmable Logic Controller 70, solar thermal collector 14, solar energy steam boiler 15, steam input sequencing valve group 16, condensed water reclaim sequencing valve group 17, cooling water input sequencing valve group 18, cooling water discharge sequencing valve group 19; Said six adsorbent beds (1,2,3; 4,5,6) the refrigerant outlet end of each adsorbent bed is with being communicated with the refrigerant inlet end of condenser 9 through first check valve set 7 in; The refrigerant outlet end of condenser 9 is communicated with the inlet of the receiver 10 that strengthens, and the port of export of the receiver that strengthens is communicated with the inlet of evaporimeter 12 in being included in freezer 13 through choke valve 11, and refrigerant outlet end warp second check valve set 8 of evaporimeter 12 passes in and out conduit 39 with the cold-producing medium of six adsorbent beds respectively and is communicated with; Solar thermal collector 14 produces steam 36 with Driven by Solar Energy solar energy steam boiler 15, and steam 36 gets into steam input sequencing valve group 16, and steam input sequencing valve group 16 is by six electronic steam valves (41; 42; 43,44,45; 46) form; PLC Programmable Logic Controller 70 is connected with each electronic steam valve that steam is imported in the sequencing valve group 16, and a corresponding adsorbent bed connects in each the electronic steam valve (41,42,43,44,45,46) in the steam input sequencing valve group 16 and six adsorbent beds (1,2,3,4,5,6), forms steam and imports stored program controlled; Condensed water reclaims sequencing valve group 17 and is made up of six dynamoelectric water valves (51,52,53,54,55,56); PLC Programmable Logic Controller 70 is connected with each dynamoelectric water valve that condensed water reclaims in the sequencing valve group 17; Each dynamoelectric water valve (51,52,53,54,55,56) that condensed water reclaims in program control group 17 connects with the middle corresponding adsorbent bed of six adsorbent beds (1,2,3,4,5,6), forms condensed water and reclaims stored program controlled; Steam input stored program controlled and condensed water reclaim stored program controlled and constitute steam input and condensed water recycling system jointly, thereby when guaranteeing the normal operation of cold storage type solar powered adsorption refrigeration freezer, recycle steam condensate (SC), improve system thermal efficiency.Cooling water 67 gets into cooling water input sequencing valve group 18; Cooling water input sequencing valve group 18 is made up of six dynamoelectric water valves (61,62,63,64,65,66); PLC Programmable Logic Controller 70 is connected with each dynamoelectric water valve that cooling water is imported in the sequencing valve 18; Each dynamoelectric water valve (61,62,63,64,65,66) in the cooling water input sequencing valve group 18 connects with the middle corresponding adsorbent bed of six adsorbent beds (1,2,3,4,5,6); Form cooling water input stored program controlled; Cooling water 67 is connected with each absorption bed (1,2,3,4,5,6) through cooling water input sequencing valve group 18, and each adsorbent bed is discharged sequencing valve group 19 with cooling water and is connected, and forms the chilled(cooling) water return (CWR).Cold-producing medium is set out by an adsorbent bed, and through check valve set 7, condenser 9, the receiver 10 that strengthens, choke valve 11, entering evaporimeter 12, cold-producing medium is sweat cooling in evaporimeter 12, for freezer 13 input refrigerating capacitys, keeps freezer 13 and normally moves.Said connection all is to adopt conventional communicating pipe to realize, said connection all is to adopt conventional interconnection technique to realize.Six adsorbent beds (1,2,3,4,5,6) its duty in the course of the work are separate and get into heating desorption state or cooling adsorbed state by the programme-control of setting; The programme-control of setting guarantees always have an adsorbent bed to be in the heating desorption state in six adsorbent beds (1,2,3,4,5,6); All the other five adsorbent beds are in the cooling adsorbed state, and switch by setting-up time.
The structure of said single adsorbent bed, its shell body 26 is provided with steam input pipe 20, refrigerant turnover conduit 39; Cooling water discharge pipe 40, cooling water inlet pipe 27, remaining cooling water comb 28; Condensed water comb 29; Be heat-insulation layer 25 between adsorbent bed inner housing 24 and the shell body 26, the pipe group 34 of unit pipes 23 compositions of a plurality of parallel connections is housed in the inner housing 24, pipe group top is collection refrigerant pipe 33; Collection refrigerant pipe 33 compiles output or input with the cold-producing medium ammonia in the unit pipes 23 of a plurality of parallel connections; Dress fin 21 and adsorbent 22 in the unit pipes 23, there is the ventilative core pipe 35 of up/down perforation in the fin centre, and the gap between gap between a plurality of unit pipes 23 and unit pipes 23 and the inner housing 24 is as the passage of steam or cooling water circulation.The condensed water comb 29 of shell body 26 side lower parts is communicated with inner housing, and the port of export is connected with drain valve 30.Steam input sequencing valve group 16 is connected with steam input pipe 20, and condensed water reclaims sequencing valve group 17 and is connected with drain valve 30, and cooling water input sequencing valve group 18 is connected with cooling water inlet pipe 27, and cooling water is discharged sequencing valve group 19 and is connected with cooling water discharge pipe 40.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4; The operation principle of the utility model is: when cooling off adsorbent bed (2,3,4,5,6) simultaneously when bed heated 1; Receive from the refrigerant gas elevated pressures effect of adsorbent bed 1 corresponding to 1 check-valves of adsorbent bed 1 in the check valve set 7 and opening automatically; All the other check-valves that do not receive in the check valve set 7 from the effect of adsorbent bed refrigerant gas elevated pressures are in closed condition automatically, and the refrigerant gas in the adsorbent bed 1 is discharged, when just adsorbent bed 1 produces " desorb "; The refrigerant gas that desorbs is through check valve set 7; Its gaseous refrigerant gets into the receiver 10 that strengthens after check valve set 7 entering condensers 9 are condensed into liquid state, the liquid refrigerant in the receiver 10 of increasing gets in the evaporimeters 12 through choke valve 11; In evaporimeter 12, cold-producing medium is evaporated to gaseous state by liquid state.Meanwhile; Owing to receive cooling effect; Adsorbent in the adsorbent bed (2,3,4,5,6) produces " absorption " to the refrigerant gas in the evaporimeter 12, and the refrigerant gas in the evaporimeter 12 is continued to flow to adsorbent bed (2,3,4,5,6), and by " absorption ".And the liquid refrigerant in the evaporimeter 12 constantly is evaporated to gas refrigerant, and flows to adsorbent bed (2,3,4,5,6).Liquid refrigerant in the evaporimeter 12 is to absorb a large amount of heats of surrounding environment in the evaporation process of gas by liquid transformation, and evaporimeter 12 is included in the freezer 13, thereby makes the freezer cooling, makes freezer reach normal operating temperature.Because 70 pairs of steam inputs of PLC Programmable Logic Controller sequencing valve group 16, condensed water reclaims the programme-control effect of sequencing valve group 17 and cooling water sequencing valve group 18, and adsorbent bed (1,2,3,4,5,6) is switched by setting-up time.After the switching, make adsorbent bed 2 get into the heating desorption state, and adsorbent bed 1 get into the cooling adsorbed state.At this moment, adsorbent bed (1,3,4,5,6) all is in the cooling adsorbed state, has promptly realized the peculiar kind of refrigeration cycle of compressor cooling---Carnot cycle.Time and program by setting are switched continuously; Remain an adsorbent bed and be in the heating desorption state; All the other five adsorbent beds are in the cooling adsorbed state, just can guarantee that refrigerant gas is come out by " desorb " from adsorbent bed continuously, simultaneously; Refrigerant gas in the evaporimeter be adsorbed the bed continuously " absorption " go back, the driving cold-producing medium kind of refrigeration cycle.And, be t in evaporating temperature
0Under≤-30 ℃ of operating modes, the adsorption capacity of the desorption ability of an adsorbent bed and five adsorbent beds has good matching, and Here it is adopts the main cause of six adsorbent beds.In addition, the adsorption capacity of six adsorbent beds and desorption ability have bigger adjustment leeway, help the realization of cold storage type function.Absorption type refrigerating is exactly to utilize the adsorbent in the adsorbent bed can adsorptive gaseous cold-producing medium under the state of cooling, the physicochemical characteristics of ability desorb gaseous refrigerant under heated condition and realize a kind of refrigeration modes with the work done of thermal energy to replace compressor.Absorbing refrigeration system is in the circulation that heating desorption and cooling are adsorbed; Under the cooling condition of setting, the adsorbance of adsorbent should keep a certain particular magnitude, and reaches the balance of adsorbance and desorption quantity; This balance is kept all the time, thereby make absorbing refrigeration system that a stable refrigerating capacity arranged.Receiver 10, choke valve 11, evaporimeter 12 and the freezer 13 of condenser 9, increasing are by being used always in the Refrigeration Technique in the device, and its operation principle and structure are mature routine techniques.
Know that by above the utility model is a cold storage type solar powered adsorption refrigeration freezer, forms the absorption type refrigerating generator by six adsorbent beds, at evaporating temperature t
0≤-30 ℃, under the condition of the cold-producing medium evaporating pressure end of than, adsorbent bed still has stronger adsorption capacity, and refrigerating capacity is bigger when guaranteeing the freezer operation, and the refrigeration continuity is good, and good stability can satisfy the requirement of the normal operation of freezer.In addition, solar thermal collector of suitably amplifying and solar energy steam boiler adopt the liquid reservoir of amplifying simultaneously; Solar charging timesharing fecund is given birth to some refrigerant liquid deposits in the receiver that strengthens by day; When do not have solar energy night, bring into play the effect of the refrigerant liquids of many deposits in the receiver of suction-operated and increasing of a plurality of adsorbent beds, realize the absorption refrigeration at night; Replenish the refrigerating capacity in the freezer, make the Ku Wen of freezer keep stable.Here it is cold storage type solar powered adsorption refrigeration freezer, can remedy does not have the defective that solar energy brings night, keeps the normal operation at freezer daytime and night.The cold storage type structure of cold storage type solar powered adsorption refrigeration freezer and function can be replenished refrigerating capacity at night, keep the stable operating temperature of freezer, make the solar powered adsorption refrigeration freezer in the engineering practicality, become possibility.
Embodiment: a kind of by Fig. 1,2,3,4 and the cold storage type solar powered adsorption refrigeration freezer that designs by the said system structural principle; Cold-producing medium is an ammonia, and it comprises that generator, condenser, the receiver (ammonia storage tank for strengthening here) of increasing, choke valve, evaporimeter (being the freezer comb here), freezer (being the combination freezer), solar thermal collector, solar energy steam boiler, check valve set, steam input sequencing valve group, the condensed water be made up of six adsorbent beds reclaim sequencing valve group, cooling water input sequencing valve group, cooling water discharge sequencing valve group, PLC Programmable Logic Controller here.Except that adsorbent bed and sequence valve group, all the other parts all have the commodity selling of the series structure design of technology maturation.Wherein, have only solar thermal collector and the equipped with it patented product of solar energy steam boiler, can satisfy the specification requirement of this patent the solar steam thermal source for just occurring in recent years.And adsorbent bed (1,2,3,4,5,6); PLC Programmable Logic Controller 70, steam input sequencing valve group 16, condensed water reclaim sequencing valve group 17, cooling water input sequencing valve group 18 is discharged sequencing valve group 19 with cooling water; Then need Design and Machining or the buying of former device voluntarily; Design and assembling; PLC Programmable Logic Controller, electronic steam valve, the designing requirement of dynamoelectric water valve follow procedure of buying are connected, and connect electrical control cubicles, discharge the programme-control of sequencing valve group 19 to realize steam input sequencing valve group 16, condensed water recovery sequencing valve group 17, cooling water input sequencing valve group 18 cooling waters.These four programme-control results will guarantee to have all the time in the adsorbent bed five adsorbent beds to be in the cooling adsorbed state, and an adsorbent bed is in the heating desorption state, and press the setting-up time automatic switchover.Five adsorbent beds are in the cooling adsorbed state, and an adsorbent bed is in the heating desorption state, and adsorbent bed will guarantee at evaporating temperature t by the result that setting-up time and program automatically switch
0Adsorbent bed still has bigger adsorption capacity under≤-30 ℃ of operating modes, thereby promotes evaporimeter 12 and have bigger evaporation capacity and refrigerating capacity, guarantees the requirement of freezer to refrigerating capacity.
Referring to Fig. 3, Fig. 4, the said structure of the adsorbent bed (1,2,3,4,5,6) of design voluntarily is: shell body 26 is provided with steam input pipe 20, cold-producing medium turnover conduit 39, cooling water discharge pipe 40, cooling water inlet pipe 27, remaining cooling water comb 28 and condensed water comb 29.Be heat-insulation layer 25 between adsorbent bed inner housing 24 and the shell body 26, inner housing 24 is a rustless steel container, and maximum working pressure is 0.4Mpa, and the pipe group 34 of unit pipes 23 compositions of a plurality of parallel connections is housed in the inner housing 24, and pipe is organized 34 tops and is collection refrigerant pipe 33.Dress fin 21 and adsorbent 22 in the unit pipes 23; The ventilative core pipe 35 that up/down perforation is equipped with in the fin centre is as ammonia current up and down passage in unit pipes, and the space between space between the unit pipes and unit pipes and the inner housing is as the passage of steam or cooling water, and the cooling water inlet pipe 27 of shell body 26 bottoms is communicated with inner housing 24; Be communicated with cooling water discharge pipe 40 again; Form the cooling water access way, the residual water comb 28 of shell body 26 bottoms is communicated with inner housing 24, forms the discharge-channel of remaining cooling water 31; The condensed water comb 29 of shell body 26 side lower parts is communicated with inner housing 24, forms the recovery approach of condensed water 32.Steam 36 gets into adsorbent bed inner housing 24 through steam input pipe 20 again through steam input sequencing valve group 16.Condensed water 32 is got back to solar thermal collector 14 through drain valve 30 and condensed water recovery sequencing valve group 17 again through condensed water comb 29.Cooling water 67 gets into adsorbent bed inner housings 24 through cooling water inlet pipe 27 again through cooling water input sequencing valve group 18, the full after cooling water discharge pipe 40 of water, and discharge 19 controls of sequencing valve group at cooling water and discharge down.More than be connected to form steam input controlled passage, to the input quantity and the control of time distribution implementation procedure of steam input adsorbent bed (1,2,3,4,5,6); The condensed water that more than is connected to form reclaims controlled passage, and condensed water is controlled from adsorbent bed (1,2,3,4,5,6) yield and recovery time implementation procedure; The cooling water that more than is connected to form is imported program control passage, to the input quantity and the control of time distribution implementation procedure of cooling water input adsorbent bed (1,2,3,4,5,6).Steam input sequencing valve group 16, condensed water recovery sequencing valve group 17, cooling water input sequencing valve group 18, cooling water are discharged sequencing valve group 19 and all are connected with PLC Programmable Logic Controller 70; The programme-control that enforcement sets; Make one in six adsorbent beds (1,2,3,4,5,6) to be in the Steam Heating desorption state; All the other five are in the water quench adsorbed state; And switch at interval by setting-up time, reach six adsorption capacity and desorption abilities between the adsorbent bed and be in the optimum Match state, thereby obtain the refrigeration degree of depth and the refrigerating capacity set.
The steam that the utility model utilizes solar energy steam boiler to produce is thermal source; Carry out absorption refrigeration with " adsorptive refrigerating system with multiple generators basic principle ", steam input, condensed water recycling, cooling water input, the cooling water of six adsorbent beds are discharged implementation procedure and dug control with the PLC Programmable Logic Controller.Form the function of cold storage type absorption refrigeration with the special constructions such as receiver of the solar thermal collector amplified, solar energy steam boiler, six adsorbent beds, increasing, realize cold storage type absorption refrigeration at night, the required refrigerating capacity of freezer when do not have solar energy additional night.This cold storage type solar powered adsorption refrigeration freezer refrigerating degree of depth can reach below-30 ℃, and refrigeration work consumption can reach thousands of watts to tens thousand of watts, is applicable to middle-size and small-size freezer.In the absorbing refrigeration system, steam pressure is 0.2 ∽ 0.4Mpa, and vapor (steam) temperature is 143 ℃ of 120 ∽, and steam condensate (SC) can be recycled in the solar thermal collector and is used, and cooling water pressure is 0.2 ∽ 0.3Mpa, and the ammonia maximum pressure is 1.35Mpa.This cold storage type solar powered adsorption refrigeration freezer can normally move in solar energy rich area.According to the technical parameter (patented technology) of existing solar energy steam boiler, in daytime 7 hours after before midday, every m
2Solar thermal collector per hour can supply sun steam boiler to produce 0.6kg steam, and steam pressure is 0.3Mpa.Consider the cold requirement of storage of absorption refrigeration at night again, with solar thermal collector and the solar boiler that this patent is used, average every m
2Solar thermal collector can make the absorption refrigeration freezer that the absorption refrigeration amount of 120W is provided.Present embodiment, freezer refrigerating power are 5000W, and evaporating temperature is t
0=30 ℃, freezer volume V=30m
3, adsorbent bed is six, the receiver volume of increasing is 100dm
3, night, per two adsorbent beds were a collection ofly to be divided into three batches, every batch of adsorption time is 30min, is that freezer replenishes the adsorbable refrigerating operaton 90min time of refrigerating capacity.Need solar thermal collector area S=45m
2
The steam that cold storage type solar powered adsorption refrigeration freezer relies on solar energy steam boiler to produce promotes the operation of six adsorbent bed absorption refrigeration freezers; The refrigeration continuity of six adsorbent bed absorption refrigeration freezers is good, and the refrigeration degree of depth and refrigerating capacity all can satisfy the requirement of the normal operation of freezer.Night, replenish refrigeration with its cold storage type structure and function, guarantee all can normally move at freezer daytime and night.This cold storage type solar powered adsorption refrigeration freezer needs freezer will bring into play unique effect to the area that food, agricultural byproducts carry out freezing cold tool Tibetan again in the solar energy rich.This freezer utilizes Driven by Solar Energy, reaches the purpose of energy-saving and environmental protection, is typical environmental protection, energy-conservation freezing and refrigerating equipment.
Claims (2)
1. cold storage type solar adsorption-type refrigerating freezer comprises six adsorbent beds (1,2; 3,4,5; 6), two check valve set (7; 8), condenser (9), the receiver (10), the choke valve (11) that strengthen, the freezer (13) that includes evaporimeter (12), PLC Programmable Logic Controller (70), solar thermal collector (14), solar energy steam boiler (15), steam input sequencing valve group (16), condensed water reclaim sequencing valve group (17), cooling water input sequencing valve group (18), cooling water and discharge sequencing valve group (19), it is characterized in that: said adsorbent bed (1,2; 3; 4,5,6) refrigerant outlet of each adsorbent bed is communicated with the refrigerant inlet end of condenser (9) through first check valve set (7) in; The refrigerant outlet end of condenser (9) is communicated with the inlet of the receiver (10) that strengthens, and the inlet of the evaporimeter (12) of the port of export of the fluid reservoir that strengthens in choke valve (11) and freezer (13) is communicated with; The refrigerant outlet end of evaporimeter (12) is communicated with the refrigerant inlet of each adsorbent bed respectively through second check valve set (8); PLC Programmable Logic Controller (70) reclaims sequencing valve group (17) with steam input sequencing valve group (16), condensed water respectively, but water input sequencing valve group (18) is connected with cooling water discharge sequencing valve group (19); Steam input sequencing valve group (16), condensed water recovery sequencing valve group (17), cooling water input sequencing valve group (18), cooling water are discharged sequencing valve group (19) and are connected with each adsorbent bed (1,2,3,4,5,6) respectively; The solar steam (36) that solar thermal collector (14) and solar energy steam boiler (15) provide is linked to be the loop through steam input sequencing valve group (16) and each adsorbent bed, and condensed water reclaims sequencing valve group (17) and each adsorbent bed (1,2 through condensed water; 3; 4,5,6) be linked to be the loop; Cooling water (67) is discharged sequencing valve group (19) and is linked to be the loop through cooling water input sequencing valve group (18), each adsorbent bed (1,2,3,4,5,6), cooling water.
2. cold storage type solar powered adsorption refrigeration freezer according to claim 1; It is characterized in that: said each adsorbent bed shell body (26) is provided with steam input pipe (20), water inlet pipe (27), residual water comb (28), condensed water comb (29), cold-producing medium turnover conduit (39), cooling water discharge pipe (40); Be heat-insulation layer (25) between adsorbent bed inner housing (24) and the shell body (26); The adsorbent bed pipe group (34) that dress is made up of several unit pipes (23) in the inner housing (24); Pipe group top is connected with cold-producing medium turnover conduit (39) for collection refrigerant pipe (33); Dress fin (22) and adsorbent (21) in the unit pipes (23), there is the ventilative core pipe (35) of up/down perforation in the fin centre, and the water inlet pipe (27) of shell body (26) bottom is communicated with inner housing (24) and steam input pipe (20); Steam input sequencing valve group (16) is connected with steam input pipe (20); Condensed water comb (29) is connected with drain valve (30); Condensed water reclaims sequencing valve group (17) and is connected with drain valve (30); Steam condensate (SC) (32) reclaims sequencing valve group (17) through condensed water and gets back to solar thermal collector (14), and cooling water input sequencing valve group (18) is connected with water inlet pipe (27).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120293703XU CN202304194U (en) | 2011-08-12 | 2011-08-12 | Cool-storage type solar energy adsorption refrigeration house |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120293703XU CN202304194U (en) | 2011-08-12 | 2011-08-12 | Cool-storage type solar energy adsorption refrigeration house |
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| CN202304194U true CN202304194U (en) | 2012-07-04 |
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| CN201120293703XU Withdrawn - After Issue CN202304194U (en) | 2011-08-12 | 2011-08-12 | Cool-storage type solar energy adsorption refrigeration house |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353206A (en) * | 2011-08-12 | 2012-02-15 | 武汉云鹤定宇制冷科技有限公司 | Cold-storage-type refrigeratory with solar adsorption refrigeration |
| CN111023230A (en) * | 2019-12-25 | 2020-04-17 | 海南捷信环境工程有限公司 | Multi-tank adsorption type sewage source heat pump |
-
2011
- 2011-08-12 CN CN201120293703XU patent/CN202304194U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353206A (en) * | 2011-08-12 | 2012-02-15 | 武汉云鹤定宇制冷科技有限公司 | Cold-storage-type refrigeratory with solar adsorption refrigeration |
| CN102353206B (en) * | 2011-08-12 | 2013-06-12 | 武汉云鹤定宇制冷科技有限公司 | Cold-storage-type refrigeratory with solar adsorption refrigeration |
| CN111023230A (en) * | 2019-12-25 | 2020-04-17 | 海南捷信环境工程有限公司 | Multi-tank adsorption type sewage source heat pump |
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