CN1683846A - Absorption refrigerating machine - Google Patents
Absorption refrigerating machine Download PDFInfo
- Publication number
- CN1683846A CN1683846A CNA2004100115919A CN200410011591A CN1683846A CN 1683846 A CN1683846 A CN 1683846A CN A2004100115919 A CNA2004100115919 A CN A2004100115919A CN 200410011591 A CN200410011591 A CN 200410011591A CN 1683846 A CN1683846 A CN 1683846A
- Authority
- CN
- China
- Prior art keywords
- absorption liquid
- heat
- absorption
- regenerator
- transfer pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 134
- 239000007788 liquid Substances 0.000 claims abstract description 113
- 239000002918 waste heat Substances 0.000 claims abstract description 43
- 239000012530 fluid Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000006096 absorbing agent Substances 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims description 24
- 238000001704 evaporation Methods 0.000 claims description 15
- 230000008020 evaporation Effects 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 10
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 abstract 3
- 239000002250 absorbent Substances 0.000 abstract 3
- 230000002159 abnormal effect Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 13
- 239000007789 gas Substances 0.000 description 12
- 230000009183 running Effects 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005144 thermotropism Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
- A47G19/2266—Means for facilitating drinking, e.g. for infants or invalids
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G2200/00—Details not otherwise provided for in A47G
- A47G2200/16—Temperature
- A47G2200/163—Temperature indicator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/006—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pediatric Medicine (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
An absorption refrigerator is provided, which can not operate or crystallize absorption liquid due to abnormal low temperature of cold water even if the flow rate of waste heat fluid cannot be controlled and the absorption liquid is heated and regenerated excessively. A heat transfer pipe (3B) through which waste heat fluid supplied from another apparatus flows is provided in a middle portion of a waste heat regenerator (3), a diffuser (3C) is provided above the heat transfer pipe (3B), an absorbent discharge port (3A) is provided below the heat transfer pipe, and a control device (36) is provided which can restrict the amount of absorbent transferred from an absorber (7) to the waste heat regenerator (3) by stopping the operation of an absorbent pump or reducing the rotation speed when a flow control valve (13) is abnormal and the amount of waste heat fluid supplied from a waste heat fluid supply pipe (30) to the heat transfer pipe (3B) cannot be reduced.
Description
Technical field
The present invention relates to the absorption refrigerating machine that a kind of thermal source that separates the regenerator of cold-producing medium as heating absorption liquid and evaporation also utilizes the used heat supplied with from miscellaneous equipment etc.
Background technology
The absorption refrigerating machine 100X that has following structure as this absorption refrigerating machine is well-known, the regenerator that concentrates the regeneration absorption liquid when promptly as shown in Figure 3, separating the cold-producing medium send in the evaporimeter 6 as ebuillition of heated absorption liquid and evaporation comprises: with the combustion heat that produces in the gas burner 1A high-temp regenerator 1 as the heating source of absorption liquid; With the refrigerant vapour supplied with from high-temp regenerator 1 low-temperature regenerator 2 as the heating source of absorption liquid; With the waste heat fluid supplied with from miscellaneous equipments such as cogeneration systems used heat regenerator 3 (for example with reference to patent documentation 1) as heating source.
In addition, Reference numeral 4 is condensers that are set up in parallel with low-temperature regenerator 2 that the refrigerant vapour that separates from absorption liquid evaporation in low-temperature regenerator 2 can flow among the figure, Reference numeral 5 is used heat condensers that are set up in parallel with used heat regenerator 3 that the refrigerant vapour that separates from absorption liquid evaporation in used heat regenerator 3 can flow into, Reference numeral 7 is absorbers that are set up in parallel with evaporimeter 6 that the refrigerant vapour of evaporation in evaporimeter 6 can flow into, Reference numeral 8 is low temperature heat exchangers, Reference numeral 9 is high-temperature heat exchangers, Reference numeral 10 is refrigerated medium pumps, Reference numeral 11 and 12 is to absorb liquid pump, Reference numeral 13 is the flow control valves that are made of triple valve, Reference numeral 14～17th, open and close valve, Reference numeral 18～23rd, the absorption liquid pipe, Reference numeral 24～29th, refrigerant pipe, Reference numeral 30 is waste heat fluid supply pipes, Reference numeral 31 is shunt valves, Reference numeral 32 is hot water pipes, Reference numeral 33 is cooling water pipes, Reference numeral 34 is balance pipes, be carried out pipe arrangement as shown in Figure 3 and connect, the tube wall by the heat-transfer pipe 6A of setting evaporimeter 6 in of being situated between is cooled/or the water that is heated into set point of temperature can be situated between and be recycled supply with not shown heat load by hot water pipe 32.
In having the absorption refrigerating machine 100X of said structure, owing to come the ebuillition of heated absorption liquid with the combustion heat and the waste heat fluid of supplying with from miscellaneous equipments such as cogeneration systems by waste heat fluid supply pipe 30 that is situated between that sends when the gas burner 1A internal combustion natural gas etc. as thermal source, so thermal efficiency height.Therefore, also has the advantage that to save resource and reduce emission amount of carbon dioxide.
Patent documentation: the spy opens flat 8-54153 communique
But, in patent documentation 1 in the disclosed absorption refrigerating machine, when because heat load hour and can not control the flow of supplying with the waste heat fluid that flows into the used heat regenerator from miscellaneous equipments such as cogeneration systems, in the time of can not subduing the quantity delivered to the used heat regenerator, there is following problem etc.: 1, low excessively by the temperature of the cold water of evaporimeter cooling supply, 2, because even absorption liquid pump out of service can not empty the used heat regenerator, continued heating so remain in the absorption liquid of used heat regenerator by waste heat fluid, absorption liquid excessively concentrates and crystallization.
Therefore, even can not control the flow of waste heat fluid absorption liquid excessively being carried out thermal regeneration can be owing to cold water temperature is unusual low and can not turn round or the problem of absorption liquid crystallization has to be solved yet.
Summary of the invention
The present invention develops for solving above-mentioned prior art, absorption refrigerating machine of the present invention has the used heat regenerator, this used heat regenerator as add heat absorption cold-producing medium absorption liquid and the cold-producing medium evaporation separated and concentrate the thermal source of regeneration absorption liquid and utilize the waste heat fluid of supplying with from miscellaneous equipment, this absorption refrigerating machine principal character is, at the center section part branch of used heat regenerator the waste heat fluid inner heat-transfer pipe of flowing through is set, simultaneously, the absorption liquid dispenser is set above heat-transfer pipe, below the absorption liquid outlet is set, control device is set, it can or reduce rotating speed and limit the conveying capacity of carrying absorption liquid from absorber to the used heat regenerator in the time can not subduing the quantity delivered of supplying with waste heat fluid in heat-transfer pipe by absorption liquid pump out of service.
In absorption refrigerating machine of the present invention, in the time can not subduing the quantity delivered of the heat-transfer pipe supply waste heat fluid in the used heat regenerator, can limit the conveying capacity of carrying absorption liquid from absorber thermotropism regenerator by shut down absorption liquid pump or reduction rotating speed.
Therefore, little and the cold water temperature supplied with of being circulated by evaporator cools is unusual when low when cooling load, absorb liquid pump or reduction rotating speed limits from the conveying capacity of absorber to used heat regenerator conveying absorption liquid by shutting down, the center section part that the liquid level of absorption liquid is lower than at the used heat regenerator divides the heat-transfer pipe that is provided with, thereby eliminates or subdue waste heat fluid in the used heat regenerator to the heating of absorption liquid.
Therefore, owing to can eliminate or subdue concentrating of the generation of used heat regenerator inner refrigerant steam and absorption liquid, so the temperature of the cold water of being supplied with by evaporator cools can be not low unusually, absorption liquid can crystallization yet.
Description of drawings
Fig. 1 is the key diagram of absorption refrigerating machine of the present invention;
Fig. 2 (A), Fig. 2 (B) are the key diagrams that expression absorbs the control example of liquid pump;
Fig. 3 is the key diagram of prior art.
Symbol description
1 high-temp regenerator
2 low-temperature regenerators
3 used heat regenerators
3A (absorption liquid) outlet
The 3B heat-transfer pipe
The 3C dispenser
4 condensers
5 used heat condensers
6 evaporimeters
The 6A heat-transfer pipe
7 absorbers
8 low temperature heat exchangers
9 high-temperature heat exchangers
10 refrigerated medium pumps
11,12 absorb liquid pump
13 flow control valves (triple valve)
14～17 open and close valves
18～23 absorption liquid pipes
24～29 refrigerant pipes
30 waste heat fluid supply pipes
31 shunt valves
32 hot water pipes
33 cooling water pipes
34 balance pipes
35 temperature sensors
36 controllers
100,100X absorption refrigerating machine
The specific embodiment
In the absorption refrigerating machine of the present invention, it has the used heat regenerator, this used heat regenerator as add heat absorption cold-producing medium absorption liquid and the cold-producing medium evaporation separated and concentrate the thermal source of regeneration absorption liquid and utilize the waste heat fluid of supplying with from miscellaneous equipment, in this absorption refrigerating machine, at the center section part branch of used heat regenerator the waste heat fluid inner heat-transfer pipe of flowing through is set, simultaneously, the absorption liquid dispenser is set above heat-transfer pipe, below the absorption liquid outlet is set, control device is set, it is when by the temperature of the cold water of discharging by the refrigerant cools of evaporator evaporation and from evaporimeter when lower than design temperature, control device is judged can not subdue the quantity delivered of supplying with waste heat fluid in heat-transfer pipe, can or reduce rotating speed and limit the conveying capacity of carrying absorption liquid from absorber to the used heat regenerator by absorption liquid pump out of service.
Below describe one embodiment of the invention in detail based on Fig. 1 and Fig. 2.In absorption refrigerating machine 100 of the present invention shown in Figure 1, cold-producing medium makes water, and absorption liquid uses lithium bromide (LiBr) aqueous solution, can be with not shown duty cycle feeding cold water or hot water.In addition, for ease of understanding, use identical symbol with above-mentioned part with identical function illustrated in fig. 3 among Fig. 1.
The described absorption refrigerating machine of the present invention 100 of Fig. 1 and the main difference point of above-mentioned absorption refrigerating machine 100X shown in Figure 3 are the structure of used heat regenerator 3.Promptly, in absorption refrigerating machine 100X shown in Figure 3, the outlet 3A of absorption liquid body is set at the sidewall center section part branch of used heat regenerator 3, and on this outlet 3A, connect an end of absorption liquid pipe 19, the running that is positioned at the absorption liquid pump 12 that the absorption liquid of the used heat regenerator 3 of the position that is higher than outlet 3A can be by being arranged on 19 of absorption liquid pipes is transported to high-temp regenerator 1, in the absorption refrigerating machine of the present invention 100 of Fig. 1 example, the outlet 3A of absorption liquid is located at the bottom of used heat regenerator 3, and connects an end of absorption liquid pipe 19 at this.
And, in absorption refrigerating machine 100X shown in Figure 3, two ends are connected with the bottom side that heat-transfer pipe 3B in the used heat regenerator 3 of waste heat fluid supply pipe 30 are biased in used heat regenerator 3, promptly also be set at than the low position of absorption liquid outlet 3A of being located at sidewall stage casing part, in absorption refrigerating machine of the present invention 100 shown in Figure 1, heat-transfer pipe 3B is positioned at the stage casing part of used heat regenerator 3, the promptly whole top that is positioned at the outlet 3A of absorption liquid.
In addition, in absorption refrigerating machine 100 of the present invention, dispenser 3C is set above heat-transfer pipe 3B, and on this dispenser 3C, connecting an end of absorption liquid pipe 18, the absorption liquid pump 11 that is positioned at 18 of absorption liquid pipes by running comes the absorption refrigeration agent and rare absorption liquid of the absorber 7 of concentration after reducing may be interspersed within on the heat-transfer pipe 3B.
In the absorption refrigerating machine 100 of said structure, under the state of conducting open and close valve 14～17, flow into cooling water in the cooling water pipe 33, at gas burner 1A internal combustion natural gas etc., simultaneously, Jie is by the high-temperature high-pressure steam of waste heat fluid supply pipe 30 from supplies such as generation systems, waste heat fluids such as high-temperature water flow to the heat-transfer pipe 3B in the used heat regenerator 3, simultaneously, running absorbs liquid pump 11, the absorption liquid that storage is slipped in the absorption liquid storage slide portion of absorber 7 spreads on the heat-transfer pipe 3B from dispenser 3C, at this moment, in high-temp regenerator 1 and used heat regenerator 3, obtain evaporating the absorption liquid of the refrigerant vapour absorption liquid concentration raising after separating with separating refrigerant vapour from absorption liquid.
The high temperature refrigerant steam that is generated by high-temp regenerator 1 flows in the low-temperature regenerator 2 via refrigerant pipe 24, and compression and utilize absorption liquid pipe 20 to be heated and the heat release condensation via the absorption liquid that high-temperature heat exchanger 9 flows into low-temperature regenerators 2 in high-temp regenerator 1 flows in the condenser 4.
In addition, flow into condenser 4 by the heating in the low-temperature regenerator 2 from the refrigerant vapour that absorption liquid separates, carry out heat exchange and condensation liquefaction with the cooling water that flows in the cooling water pipe 33, with the cold-producing medium of supplying with from refrigerant pipe 24 condensations via refrigerant pipe 26 inflow evaporators 6.
The high temperature refrigerant steam that is generated by used heat regenerator 3 also flows into used heat condenser 5, carries out heat exchange and condensation liquefaction with cooling water in the cooling water pipe 33 of flowing through, and via in refrigerant pipe 27,26 inflow evaporators 6.
The cold-producing medium inflow absorber 7 of evaporation is by low-temperature regenerator 2 heating in evaporimeter 6, and with cold-producing medium evaporation separation, the concentration of absorption liquid further improves, and the absorption liquid of regeneration, promptly is supplied to via low temperature heat exchanger 8 by absorption liquid pipe 21, and is absorbed by the concentrated absorption solution that scatters from top.
By absorber 7 absorption refrigeration agent, the absorption liquid that concentration is thin out, be that rare absorption liquid is transported to used heat regenerator 3 by the running that absorbs liquid pump 11 via low temperature heat exchanger 8, spread on the heat-transfer pipe 3B from dispenser 3C, as previously mentioned, carry out heat exchange with the waste heat fluid of supplying with from waste heat fluid supply pipe 30 and be heated, evaporation separates cold-producing medium and also is concentrated.
As mentioned above, when turning round, among the heat-transfer pipe 6A in evaporimeter 6, supply with not shown thermic load circulation by hot water pipe 32, so the cooling that can freeze etc. is turned round owing to can utilize the cold water of cold-producing medium gasification heat cooling to be situated between.
In addition, the supply of supplying with waste heat fluid to heat-transfer pipe 3B from waste heat fluid supply pipe 30 has precedence over the burning of natural gas in the gas burner 1A etc.Promptly, controller 36 is at first controlled flow control valve 13, the hot and cold water temperature that temperature sensor 35 is detected is reduced to for example 7 ℃ of the temperature of regulation, when even the amount of the waste heat fluid that flows into heat-transfer pipe 3B becomes maximum, when the temperature of the hot and cold water that temperature sensor 35 detects still is not reduced to 7 ℃ of design temperature, utilize gas burner 1A to carry out the heating of absorption liquid, in high-temp regenerator 1, also carry out the generation of refrigerant vapour and the concentrated regeneration of absorption liquid, also can be controlled at 7 ℃ of design temperatures by evaporimeter 6 cooling and the temperature that is discharged to the hot and cold water of hot water pipe 32, when even the heat that adds that is produced by gas burner 1A is restricted to minimum, when the temperature of the hot and cold water that temperature sensor 35 detects does not still rise to 7 ℃ of design temperatures, stop to adopt the heating of gas burner 1A, further control flow control valve 13, the quantity delivered of waste heat fluid is supplied with in restriction to heat-transfer pipe 3B, and by evaporimeter 6 cooling, be discharged to hot water pipe 32 hot and cold water form 7 ℃ of design temperatures.
And, in absorption refrigerating machine 100 of the present invention, as previously mentioned, because the outlet 3A of the absorption liquid of used heat regenerator 3 is set at the part at the end, so when the running that absorbs liquid pump 11 stops, emptying in the used heat regenerator 3.Promptly, owing to stop to absorb the running of liquid pump 12 during gas burner 1A burn-out by controller 36, so return absorber 7 by absorption liquid pipe 19,22,21 because the absorption liquid in the pressure official post used heat regenerator 3 of used heat regenerator 3 and absorber 7 is situated between, and also make during owing to gas burner 1A burning to absorb liquid pump 12 runnings, so Jie of the absorption liquids in the used heat regenerator 3 is sent to the high-temp regenerator 1 of HTHP by absorption liquid pipe 19 by controller 36.
Therefore, even it is undesired to work as flow control valve 13, can not control restriction when waste heat fluid supply pipe 30 supplies to the flow of waste heat fluid of heat-transfer pipe 3B of used heat regenerator 3, absorb liquid pump 11 by shutting down, or by reducing rotating speed, restriction is from the computed carrier amount of absorber 7 to the absorption liquid of used heat regenerator 3 conveyances, so that the liquid level of the absorption liquid of used heat regenerator 3 is below heat-transfer pipe 3B, come from the high-temperature high-pressure steam of supplies such as cogeneration system, the waste heat fluid of high-temperature water etc. continues to supply with to heat-transfer pipe 3B from waste heat fluid supply pipe 30, be not suppressed because do not heat absorption liquid in the used heat regenerator 3 or add heat, so used heat regenerator 3 does not produce refrigerant vapour, supply to non-crystallizableization of absorption liquid of absorber 7.
Therefore, control the running that absorbs liquid pump 11 according to the temperature of temperature sensor 35 detected hot and cold waters as Fig. 2 (A) by controller 36.
That is, to be used for the temperature of the hot and cold water that temperature sensor 35 detects be 4.5 ℃ of following times and rise from the state below 4.5 ℃ that control stops to absorb liquid pump 11 between 5.5 ℃ for example in controller 36 output; Reduce more than 5.5 ℃ the time and from 5.5 ℃ state that output is used to control the control signal that running absorbs liquid pump 11 between 4.5 ℃.
Therefore, in absorption refrigerating machine 100 of the present invention, even flow control valve 13 is undesired, can not limit the flow of waste heat fluid that supplies to the heat-transfer pipe 3B of used heat regenerator 3 from waste heat fluid supply pipe 30, the heating of gas burner 1A stops, also can be by the heat-transfer pipe 6A of evaporimeter 6 cooling, and make under the temperature of the hot and cold water that is discharged to hot water pipe 32 and be reduced to 4.5 ℃, when temperature sensor 35 detects it, stop to absorb the running of liquid pump 11 by controller 36.
Therefore, even empty in the used heat regenerator 3, the waste heat fluid of the high-temperature high-pressure steam of supplying with from cogeneration system etc., high-temperature water etc. continues to supply with to heat-transfer pipe 3B from waste heat fluid supply pipe 30, because the absorption liquid in the used heat regenerator 3 is not heated, so do not produce refrigerant vapour in the used heat regenerator 3, absorption liquid can not crossed yet and be concentrated and crystallization.
Absorb in the liquid pump 11, for example shown in Fig. 2 (B), when passing through controller 36, the temperature that is temperature sensor 35 detected hot and cold waters is for for example below 4.5 ℃ the time, the electric frequency that drives the motor that absorbs liquid pump 11 is 0Hz, when the temperature of above-mentioned hot and cold water is more than 5.5 ℃ the time, the peak frequency of regulation is for example 60Hz, when the temperature of above-mentioned hot and cold water is between 4.5 ℃～5.5 ℃, the electric frequency that gives motor is selected electric frequency according to the ratio of the temperature of above-mentioned hot and cold water, like this, also can control its rotation.
In addition, in the absorption refrigerating machine of the present invention 100 of described structure, conducting open and close valve 14～17, make natural gas etc. in gas burner 1A internal combustion, the absorption liquid in the ebuillition of heated high-temp regenerator 1 then separates from the absorption liquid evaporation, via refrigerant pipe 24,25, inflow absorber 7, in addition, the tube wall of the refrigerant vapour transmission of heat by contact pipe 6A in the inflow evaporator 6 and being condensed.Then, because the water that flows in the heat-transfer pipe 6A mainly is heated by the condensation heat of cold-producing medium, so carry out heating etc. and add heat run by the supply that circulates of the water after will heating with load.
But the present invention is not limited to described embodiment, can be in not breaking away from claim scope of the present invention carries out various changes in the scope of described purport.
For example, can followingly carry out pipe arrangement to the absorption liquid pipe, the rare absorption liquid that reduces concentration by absorber 7 absorption refrigeration agent at first is sent to used heat regenerator 3 and concentrates, absorption liquid after will concentrating again is transported to low-temperature regenerator 2 and concentrates, be transported to high-temp regenerator 1 at last and concentrate, can also followingly carry out pipe arrangement to the absorption liquid pipe, branch in high-temp regenerator 1 and used heat regenerator 3 and transport the rare absorption liquid that is reduced concentration by absorber 7 absorption refrigeration agent will be transported in the low-temperature regenerator 2 by the absorption liquids that high-temp regenerator 1 and used heat regenerator 3 concentrate and concentrate.
In addition, open and close valve 17 is provided with the absorption refrigerating machine 100X that therebetween refrigerant pipe 29 also can be as shown in Figure 3, promptly is located between refrigerated medium pump 10 downstream sides and the absorber 7.
In addition, also can adopt such absorption refrigerating machine, promptly not comprise high-temp regenerator 1 and low-temperature regenerator 2, and absorption liquid is circulated between used heat regenerator 3 and absorber 7.
Claims (2)
1, a kind of absorption refrigerating machine, it has the used heat regenerator, this used heat regenerator as add heat absorption cold-producing medium absorption liquid and the cold-producing medium evaporation separated and concentrate the thermal source of regeneration absorption liquid and utilize the waste heat fluid of supplying with from miscellaneous equipment, this absorption refrigerating machine is characterised in that, at the center section part branch of used heat regenerator the waste heat fluid inner heat-transfer pipe of flowing through is set, simultaneously, the absorption liquid dispenser is set above heat-transfer pipe, below the absorption liquid outlet is set, control device is set, it can or reduce rotating speed and limit the conveying capacity of carrying absorption liquid from absorber to the used heat regenerator in the time can not subduing the quantity delivered of supplying with waste heat fluid in heat-transfer pipe by absorption liquid pump out of service.
2, absorption refrigerating machine as claimed in claim 1, it is characterized in that, by the temperature of the cold water of discharging when lower than design temperature by the refrigerant cools of evaporator evaporation and from evaporimeter, control device is judged can not subdue the quantity delivered of supplying with waste heat fluid in heat-transfer pipe, limits from the conveying capacity of absorber to used heat regenerator conveying absorption liquid and absorb liquid pump or reduction rotating speed by shutting down.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004118972A JP4315855B2 (en) | 2004-04-14 | 2004-04-14 | Absorption refrigerator |
| JP118972/04 | 2004-04-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1683846A true CN1683846A (en) | 2005-10-19 |
| CN100342190C CN100342190C (en) | 2007-10-10 |
Family
ID=35263275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100115919A Expired - Fee Related CN100342190C (en) | 2004-04-14 | 2004-12-21 | Absorption refrigerating machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4315855B2 (en) |
| KR (1) | KR100585352B1 (en) |
| CN (1) | CN100342190C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100576129C (en) * | 2006-03-28 | 2009-12-30 | 三洋电机株式会社 | Absorption refrigerating machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007309617A (en) * | 2006-05-22 | 2007-11-29 | Chugoku Electric Power Co Inc:The | Gas cooling system |
| JP5384072B2 (en) * | 2008-09-30 | 2014-01-08 | 三洋電機株式会社 | Absorption type water heater |
| US8978397B2 (en) * | 2009-04-24 | 2015-03-17 | Thermax Limited | Absorption heat pump employing a high/low pressure evaporator/absorber unit a heat recovery unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3086594B2 (en) * | 1994-08-10 | 2000-09-11 | 三洋電機株式会社 | Single double effect absorption refrigerator |
| JP4079576B2 (en) * | 2000-06-05 | 2008-04-23 | 三洋電機株式会社 | Absorption refrigerator |
| JP4553522B2 (en) * | 2001-07-19 | 2010-09-29 | 三洋電機株式会社 | Absorption refrigerator |
| CN2536974Y (en) * | 2002-03-22 | 2003-02-19 | 大连三洋制冷有限公司 | Single or double effects combined flue-use absorption refrigerator |
-
2004
- 2004-04-14 JP JP2004118972A patent/JP4315855B2/en not_active Expired - Fee Related
- 2004-12-21 CN CNB2004100115919A patent/CN100342190C/en not_active Expired - Fee Related
-
2005
- 2005-01-20 KR KR1020050005187A patent/KR100585352B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100576129C (en) * | 2006-03-28 | 2009-12-30 | 三洋电机株式会社 | Absorption refrigerating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4315855B2 (en) | 2009-08-19 |
| JP2005300069A (en) | 2005-10-27 |
| KR100585352B1 (en) | 2006-06-02 |
| KR20050101113A (en) | 2005-10-20 |
| CN100342190C (en) | 2007-10-10 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20071010 Termination date: 20171221 |