CN101131267A - Adsorption refrigerating system with two and above generators - Google Patents
Adsorption refrigerating system with two and above generators Download PDFInfo
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- CN101131267A CN101131267A CNA2007100530436A CN200710053043A CN101131267A CN 101131267 A CN101131267 A CN 101131267A CN A2007100530436 A CNA2007100530436 A CN A2007100530436A CN 200710053043 A CN200710053043 A CN 200710053043A CN 101131267 A CN101131267 A CN 101131267A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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Abstract
This invention relates to absorption refrigerating system with more than two generators. It includes generator, check valve unit, condenser, liquid storage tank, throttling valve, refrigerating output device, evaporator, PLC programmable controller, waste gas input sequencing valve unit and cooling water input sequencing valve unit. The refrigerant outlet of each generator connects to check valve unit, condenser, liquid storage tank, throttling valve and evaporator. At last it returns back to the refrigerant inlet of each generator through check valve unit. The PLC programmable controller connects to waste gas input sequencing valve unit and cooling water input sequencing valve unit. The waste gas input sequencing valve unit and cooling water input sequencing valve unit connects to each generator respectively. Cooling water forms loop with each generator through cooling water input sequencing valve unit. Water gas input pipe forms loop with each generator through waste gas input sequencing valve unit. This invention can fulfill continuous refrigeration and make refrigerating temperature under -20deg.C.
Description
Technical field
The present invention relates to refrigeration system, be specifically related to two above generator adsorption refrigerating systems.
Background technology
People's such as Li Dingyu patent of invention " dual-generator adsorption refrigerating system " is the significant improvement to the cell generator absorption refrigeration.The one generator absorbing refrigeration system can not be realized continuous cooling, can only realize intermittent refrigeration.See Fig. 1.Dual-generator adsorption refrigerating system can not be realized continuous cooling, can only realize the intermittence refrigeration that the intermittent time is shorter than the one generator intermittent time.Because the principle of absorption refrigeration decision, have only when adsorbent is in adsorbed state in the generator and could freeze, and dual-generator adsorption refrigerating system is in the about 1-3 minute transit time of two cold and hot switchings of generator, adsorbent in two generators all is not in adsorbed state, do not adsorb, thereby can not freeze.The intermittence of dual-generator adsorption refrigerating system refrigeration is seen Fig. 2, and the intermittence of dual-generator adsorption refrigerating system refrigeration is proved by theoretical derivation and experiment.Simultaneously, in the dual-generator adsorption refrigerating system, a generator is in adsorbed state, and another generator is in desorption state.And the refrigeration degree of depth is dark more, and the ability of adsorbents adsorb refrigerant gas is poor more, thereby the refrigeration degree of depth and refrigerating capacity are restricted.In summer, when the nature water temperature was higher than 25 ℃, the refrigeration degree of depth of dual-generator adsorption refrigerating system was difficult to reach below-20 ℃, thereby refrigerating capacity is less.
Summary of the invention
The objective of the invention is: according to two or two above generator absorption--desorb theory, design two above generator adsorption refrigerating systems, it is two or two above generators are in adsorbed state simultaneously, 1 or 2 generator is in desorption state, strengthen system's adsorption capacity greatly, thereby strengthen system's refrigerating capacity greatly, realize real continous-stable refrigeration simultaneously.This system can guarantee-the continous-stable refrigeration of 5--45 ℃, and refrigerating capacity greatly improves, and making absorption refrigeration move towards practical application becomes possibility.This system's refrigeration continous-stable characteristic is seen Fig. 3.
Technical scheme of the present invention is:
Two above generator adsorption refrigerating systems, comprise N generator, check valve set (13,14), condenser 15, receiver 16, choke valve 17, refrigeration output device 19 and include evaporimeter 18, PLC Programmable Logic Controller 37, tail gas input sequencing valve group 20, cooling water input sequencing valve group 21, the refrigerant outlet of each generator is communicated with the refrigerant inlet end of condenser 15 through check valve set 13 in the described N platform generator, the refrigerant outlet end of condenser 15 is communicated with the inlet of receiver 16, and the port of export of receiver is communicated with through the inlet of choke valve 17 with the evaporimeter 18 of refrigeration in the output device 19, the refrigerant outlet end of evaporimeter 18 is communicated with the refrigerant inlet of generator separately respectively through check valve set 14, PLC Programmable Logic Controller 37 is connected with cooling water input sequencing valve group 21 with tail gas input sequencing valve group 20 respectively, tail gas input sequencing valve group 20 is connected with N platform generator respectively with cooling water input sequencing valve group 21, cooling water pipe connects into the loop through cooling water input sequencing valve group 21 with each generator, the tail gas input pipe connects into the loop, N=3-12 through tail gas input sequencing valve group 20 with each generator.
Cooling water input sequencing valve group is made up of dynamoelectric water valve, several generators is arranged just to using several dynamoelectric water valves, and dynamoelectric water valve can adopt magnetic valve or electronic two station tee ball valves.Tail gas input sequencing valve group is made up of electronic steam valve, several generators is arranged just to using several electronic steam valves.
There is tail gas to discharge conduit 26 on the shell body 30 of described generator, tail gas input pipe 33, water inlet pipe 31, overflow pipe 32, ammonia discrepancy conduit 36, be heat-insulation layer 29 between the inner housing 28 of generator and the shell body 30, adorn 1 or an above metal tube unit 27 in parallel generator unit just in the inner housing, dress fin and adsorbent in the metal tube unit 27, there is the ventilative core pipe of up/down perforation at the fin center, the space is left in 27 outsides, metal tube unit, ventilative core pipe upper end is communicated with ammonia discrepancy conduit 36, shell body 30 bottom water inlet pipes 31 are communicated with inner housing 28, and be communicated with overflow pipe 32, the tail gas input pipe 33 of shell body 30 bottoms is communicated with inner housing 28, and discharge conduit 26 with tail gas and be communicated with, tail gas input pipe 33 connects tail gas input sequencing valve group 20, and water inlet pipe 31 connects cold water input sequencing valve group 21.
Two above generator adsorption refrigerating systems, and by 37 pairs of tail gas inputs of PLC programmable controller sequencing valve group 20, the cooling water input sequencing valve group 21 common automatic control systems that constitute are to the desorption state and the control of adsorbed state implementation procedure of generator, the adsorbents adsorb ability obviously descends during at refrigeration below-20 ℃ physics and chemical characteristic, realize that two or two above generators are in adsorbed state simultaneously, one or two generators are in desorption state, thereby improved the adsorption capacity of system, reach adsorption capacity and desorption ability is complementary, both continous-stable when realizing refrigeration below-20 ℃ has stronger refrigerating capacity again.
The present invention utilizes each related work unit of existing absorbing refrigeration system, utilization absorption--the correlation theory of desorb is determined mutual work relationship, and two above generators are set, and, make two above generator adsorption refrigerating systems through specific connection and electric programme-control.This system can realize-5--45 ℃ continous-stable refrigeration, and have big refrigerating capacity.Two above generators among the present invention are meant separate two the above generators that carry out heating desorption and cooling absorption switching again by the programme-control requirement of setting of its adsorption and desorption state, the generator that is in the heating desorption state is 1 or 2, and all the other all are in the cooling adsorbed state.The quantity of generator is the 3-12 platform in two above generator adsorption refrigerating systems.
Description of drawings
Fig. 1 is one generator absorbing refrigeration system refrigerating capacity and time chart.
Fig. 2 is dual-generator adsorption refrigerating system refrigerating capacity and time chart.
Fig. 3 is two above generator adsorption refrigerating system refrigerating capacitys and time chart.
Fig. 4 is 4 generator adsorption refrigerating system structure connection diagrams.
Fig. 5 is the structural representation of generator.
Fig. 6 is two above generator adsorption refrigerating system structure connection diagrams.
In the described accompanying drawing: 1,2,3, ... N (N=3-12)--generator, 13, the 14--check valve set, 15--condenser, 16--receiver, the 17--choke valve, 18--evaporimeter, the 19--output device that freezes, 20--tail gas input sequencing valve group, 21--cooling water input sequencing valve group, 22--tail gas input 23--tail gas is discharged the input of 24--cooling water, the overflow of 25--cooling water, 26--tail gas is discharged conduit, 27--metal tube unit, 28--inner housing, 29--heat-insulation layer, the 30--shell body, the 31--water inlet pipe, 32--overflow pipe, 33--tail gas input pipe, 34--absorption enters ammonia, 35--desorption output ammonia, 36--ammonia discrepancy conduit, 37--PLC programmable controller.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 6, the present invention includes generator (1,2,3, ... N), condenser 15, comprise evaporimeter 18 in receiver 16 and the refrigeration output device 19, refrigeration output device 19 is a seawater ice maker, when N is 4, as shown in Figure 4,4 generators (1,2,3,4), each generator refrigerant gas conduit is communicated with the refrigerant inlet end of condenser 15 through check valve set 13, the refrigerant outlet end of condenser 15 is communicated with the inlet of receiver 16, and the liquid outlet of receiver 16 is communicated with the inlet of evaporimeter through choke valve 17, the refrigerant outlet end of evaporimeter 18 is through check valve set 14 coolant conduits of generator connection separately together respectively, PLC Programmable Logic Controller 37 is connected with cooling water input sequencing valve group 21 with tail gas input sequencing valve group 20 respectively, tail gas input sequencing valve group 20 is connected with 4 generators respectively with cooling water input sequencing valve group 21, and cooling water pipe connects into the loop through cooling water input sequencing valve group 21 with each generator, and the tail gas input pipe connects into the loop through tail gas input sequencing valve group 20 with each generator.Described connection adopts conventional communicating pipe to realize.Described 4 generators are meant the separate generator that carries out the duty switching again by the control program of setting of its duty, described duty is meant heating desorption state or cooling adsorbed state, and the separate unit generator can by 1 or 1 above metal tube unit in parallel just generator unit form.
Operation principle of the present invention is: with 4 generators is the example explanation, referring to Fig. 4, cool off generator (2 simultaneously when adding heater 1,3,4) time, the check-valves of corresponding generator 1 is subjected to opening automatically from the refrigerant gas elevated pressures effect of generator 1 in the check valve set 13, be not subjected in the check valve set 13 closing automatically from each check-valves of generator refrigerant gas elevated pressures effect, the adsorbed refrigerant gas of adsorbent in the generator 1 is discharged with gaseous form just produce " desorb " effect, its gaseous refrigerant enters through check valve set 13 and enters receiver 16 again after condenser 15 is condensed into liquid state, and the liquid refrigerant in the receiver 16 enters in the evaporimeter 18 through choke valve 17; Meanwhile, owing to be subjected to cooling effect, generator (2,3,4) adsorbent in adsorbs the refrigerant gas of evaporimeter in the system 18, and the liquid refrigerant in evaporimeter 18 is converted into a large amount of heats that absorb surrounding environment in the process of gaseous state by liquid state, realizes refrigeration, makes sea-water ice.Because the programme-control effect at PLC programmable controller 37 of tail gas input sequencing valve group 20 and cooling water input sequencing valve group 21, in next program, make generator 2 enter the heating desorption state, and generator 1 enters the cooling adsorbed state, thereby make generator (1,3,4) all be in the cooling adsorbed state, then the process of refrigerastion of the process of refrigerastion of system and a last program is identical.The duty of each generator is under the control of the automatic control systems that PLC Programmable Logic Controller 37 and tail gas input sequencing valve group 20 and cooling water input sequencing valve group 21 constitute jointly, carry out duty switches on time, assurance has a generator to be in the heating desorption state, its excess-three platform generator is in the cooling adsorbed state, has promptly realized the peculiar kind of refrigeration cycle of compression refrigeration--Carnot cycle.In the Geng Duotai generator adsorption refrigerating system, 1 or 2 generator can occur and be in the heating desorption state, all the other each generators are in the cooling adsorbed state.This is to utilize the adsorbent can the adsorbed gas cold-producing medium under the state of being cooled, be heated under the state can the desorption gas cold-producing medium physics--chemical characteristic reaches a kind of refrigeration modes that replaces the compressor work done with the heat energy work done.System is in the circulation of heating desorption and cooling absorption, and adsorbent needn't reach or near saturated extent of adsorption, but carries out the circulation of adsorption and desorption on the benchmark of a certain specific adsorption concentration.Receiver 16, choke valve 17 and evaporimeter 18 are by being used always in the refrigeration, and its operation principle and structure are existing routine techniques and conventional equipment.
As known from the above, the present invention is a kind of two above generator adsorption refrigerating systems, and the generator number of this system is the 3-12 platform, and this system can realize real continous-stable refrigeration.In summer, when cooling water temperature is more than 25 ℃ the time, system's refrigeration degree of depth can reach-5 ℃--and 45 ℃.The heat energy input and the cooling water of this system imported equal implementation procedure control, reach that adsorption capacity and desorption ability are complementary under the cryogenic temperature of setting, has dependable performance, can significantly improve refrigerating capacity, and refrigerating capacity is continuous, stable, system automation program height, making absorption refrigeration move towards practicality becomes possibility.
A kind of 4 generator adsorbent refrigeration diesel engine of fishing vessel tail gas ice machines pressing Fig. 4 and said system structural design, it comprises that condenser, receiver include evaporimeter and generator for anhydrous ammonia tank, seawater ice maker herein.Seawater ice maker includes evaporimeter, choke valve, and the series structure design and the commodity of existing market-ripe such as anhydrous ammonia tank can be selected suitable specification and model at the specific requirement of embodiment.The generator of the PLC Programmable Logic Controller, magnetic valve, electronic steam valve and the conduit that buy and design is voluntarily connected assembling just to be become.
Referring to Fig. 4, Fig. 5, the described structure of the generator of design voluntarily is: have tail gas to discharge conduit 26 on the shell body 30, tail gas input pipe 33, water inlet pipe 31, overflow pipe 32, ammonia discrepancy conduit 36.Be heat-insulation layer 29 between generator inner housing 28 and the shell body 30.Inner housing inside is metal tube unit 27 generator unit just, dress fin and adsorbent in the metal tube unit 27, there is the ventilative core pipe of up/down perforation at the fin center, the space is left in 27 outsides, metal tube unit, as the output 35 of cold-producing medium ammonia with enter 34 passage, ventilative core pipe upper end is communicated with ammonia discrepancy conduit 36, shell body 30 bottom water inlet pipes 31 are communicated with inner housing 28, be communicated with overflow pipe 32 again, form the cooling water access way; The tail gas input pipe 33 of shell body 30 bottoms is communicated with inner housing 28, discharges conduit 26 with tail gas again and is communicated with, and forms the tail gas access way; Tail gas input pipe 33 connects tail gas and imports sequencing valve group 20, and water inlet pipe 31 connects cold water input sequencing valve groups 21, and tail gas input sequencing valve group 20 is imported the control that sequencing valve group 21 is subjected to PLC Programmable Logic Controller 37 with cold water.More than connection is controlled with the heat supply of electrical control formation tail gas, tail gas is input to the time and the control of input quantity implementation procedure of generator (1,2,3,4); It is controlled more than to connect the cooling water input that forms with electrical control, cooling water is input to the time and the control of input quantity implementation procedure of generator (1,2,3,4).Tail gas input sequencing valve group 20 is imported sequencing valve group 21 control program that enforcement sets under the control of PLC Programmable Logic Controller 37 to generator (1 with cooling water, 2,3,4) heating desorption state carries out programme-control with the cooling adsorbed state, thereby realizes that the desorb of system is with the optimum Match of absorption, to obtain the refrigeration degree of depth and the refrigerating capacity of setting.
By generator (1,2,3,4)--check valve set 13--condenser 15--receiver 16--choke valve 17--seawater ice maker includes evaporimeter 18--check valve set 14, the passage that returns generator is the circulation canal of cold-producing medium ammonia, and wherein condenser 15 cools off with seawater.Seawater ice maker is with the seawater ice making, and sea-water ice is for the fresh-keeping usefulness of fishing boat.
The present invention utilizes 200kw marine diesel tail gas thermal source, freezes with the absorption refrigeration principle, to the heat supply and the control of cooling implementation procedure of four generators of system.System's refrigerating capacity is 10000-15000kcal/h, and the refrigeration degree of depth reaches-25 ℃--30 ℃, system sea-water ice amount is 1-1.5T/24h, and system's maximum working pressure (MWP) is 1.35MPa, system with seawater as cooling water.System can satisfy the specific (special) requirements of seawater ice making, and the quantity of made sea-water ice, quality are all suitable with the made sea-water ice of electronic ice machine.Made sea-water ice can replace the traditional work mode that a large amount of fresh ices of since modern seagoing fishing vessel band go to sea and fish for, and can improve catching rate greatly, reduces and fishes for cost, and improve the preservation of fishery quality.Simultaneously, using this refrigeration system, can not influence the power output of marine diesel, do not increase oil consumption, reach energy savings, protect environment, improve the purpose of fresh-keeping quality, is typical energy-conserving and environment-protective product.
Claims (2)
1. two above generator adsorption refrigerating systems, comprise N generator, check valve set (13,14), condenser (15), receiver (16), choke valve (17), refrigeration output device (19) and include evaporimeter (18), PLC Programmable Logic Controller (37), tail gas input sequencing valve group (20), cooling water input sequencing valve group (21), it is characterized in that: the refrigerant outlet of each generator is communicated with through the refrigerant inlet end of check valve set (13) with condenser (15) in the described n platform generator, the inlet of the same receiver of refrigerant outlet end (16) of condenser (15) is communicated with, and the inlet of the evaporimeter (18) of the port of export of receiver in choke valve (17) and refrigeration output device (19) is communicated with, the refrigerant outlet end of evaporimeter (18) is communicated with the refrigerant inlet of generator separately respectively through check valve set (14), PLC Programmable Logic Controller (37) is connected with cooling water input sequencing valve group (21) with tail gas input sequencing valve group (20) respectively, tail gas input sequencing valve group (20) is connected with N platform generator respectively with cooling water input sequencing valve group (21), cooling water pipe connects into the loop through cooling water input sequencing valve group (21) and each generator, the tail gas input pipe connects into the loop, N=3-12 through tail gas input sequencing valve group (20) and each generator.
2. two above generator adsorption refrigerating systems according to claim 1, it is characterized in that: have tail gas to discharge conduit (26) on the shell body of described generator (30), tail gas input pipe (33), water inlet pipe (31), overflow pipe (32), ammonia discrepancy conduit (36), be heat-insulation layer (29) between inner housing of generator (28) and the shell body (30), adorn 1 or an above metal tube unit in parallel (27) generator unit just in the inner housing, dress fin and adsorbent in the metal tube unit (27), there is the ventilative core pipe of up/down perforation at the fin center, ventilative core pipe upper end is communicated with ammonia discrepancy conduit (36), shell body (30) bottom water inlet pipe (31) is communicated with inner housing (28), and be communicated with overflow pipe (32), the tail gas input pipe (33) of shell body (30) bottom is communicated with inner housing (28), and discharge conduit (26) with tail gas and be communicated with, tail gas input pipe (33) connects tail gas input sequencing valve group (20), and water inlet pipe (31) connects cold water input sequencing valve group (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100530436A CN100523653C (en) | 2007-08-27 | 2007-08-27 | Adsorption refrigerating system with two and above generators |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100530436A CN100523653C (en) | 2007-08-27 | 2007-08-27 | Adsorption refrigerating system with two and above generators |
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| CN101131267A true CN101131267A (en) | 2008-02-27 |
| CN100523653C CN100523653C (en) | 2009-08-05 |
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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 |
| CN102679614A (en) * | 2011-12-22 | 2012-09-19 | 河南科技大学 | Solution self-cooled rectified ammonia water absorption refrigerating system |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3138004B2 (en) * | 1991-05-17 | 2001-02-26 | 三洋電機株式会社 | Absorption refrigerator control device |
| CN2250308Y (en) * | 1995-12-15 | 1997-03-26 | 深圳广宇工业(集团)公司 | Adsorption refrigerator generater for ship |
| CN1122164C (en) * | 1999-01-13 | 2003-09-24 | 李定宇 | Dual-generator adsorption refrigerating system |
| CN1279387A (en) * | 1999-07-06 | 2001-01-10 | 李定宇 | Adsorptive refrigerating system with multiple generators |
| CN2578751Y (en) * | 2002-09-18 | 2003-10-08 | 湖北登峰换热器股份有限公司 | Separated heat pipe adsorptive refrigerating machines |
| CN100430315C (en) * | 2006-09-18 | 2008-11-05 | 孔庆然 | Equipment and method for treating exhaust gas for carbon bisulfide preparing process |
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2007
- 2007-08-27 CN CNB2007100530436A patent/CN100523653C/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| CN102679614A (en) * | 2011-12-22 | 2012-09-19 | 河南科技大学 | Solution self-cooled rectified ammonia water absorption refrigerating system |
| CN102679614B (en) * | 2011-12-22 | 2014-05-07 | 河南科技大学 | Solution self-cooled rectified ammonia water absorption refrigerating system |
| 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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| CN100523653C (en) | 2009-08-05 |
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