CN106969535A - Absorption refrigerator - Google Patents
Absorption refrigerator Download PDFInfo
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- CN106969535A CN106969535A CN201610766359.9A CN201610766359A CN106969535A CN 106969535 A CN106969535 A CN 106969535A CN 201610766359 A CN201610766359 A CN 201610766359A CN 106969535 A CN106969535 A CN 106969535A
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- Prior art keywords
- temperature
- regenerator
- operating
- cold water
- absorbing liquid
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Classifications
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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
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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
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
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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
- F25B2600/00—Control issues
- F25B2600/01—Timing
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
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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
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention provides the Absorption Refrigerator for the operation mode that can automatically switch, and it includes control device (51), and the control device (51) is controlled as follows：When the state lasting stipulated time and the cold water outlet temperature (T2 ') of evaporator (1) that water discharge inlet temperature (T1 ') turns into more than water discharge return design temperature (T1) continuing the stipulated time as the state of cold water design temperature (T2) below, stop the reheating being carried out using gas burner (4) (heating unit), switch to the single-action for carrying out being operated merely with the hot water of supply to heat extraction regenerator to operate.
Description
Technical field
The present invention relates to Absorption Refrigerator, in particular to the Absorption Refrigerator of automatic switchover operation mode.
Background technology
In general, for instance it is known to include high-temp regenerator, low-temperature regenerator, evaporator, condenser and absorber, pass through them
The Absorption Refrigerator of the circulating path of absorbing liquid and refrigerant (refrigerant) is connected and formed respectively by pipeline.Absorption refrigeration
Machine is such as the central air-conditioning for office building.
In such Absorption Refrigerator, following technology is for example disclosed in the prior art：It can carry out supplying extremely
Single-action operating and the gas having with high-temp regenerator that the hot water of heat extraction regenerator is heated as thermal source to absorbing liquid
Single economic benefits and social benefits that burner is heated as thermal source to the absorbing liquid are operated, and the pattern with the operation mode for switching each operating is cut
Change switch, using the mode selector switch, from single economic benefits and social benefits operating switch to single-action operably to switch operation mode when, control dress
Put and be controlled so that stop gas burner, and the temperature of the absorbing liquid in high-temp regenerator is reduced to the absorption
Single-action operating is converted to when below the set point of temperature that liquid is substantially diluted (for example, referring to patent document 1).
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-048958 publications
The content of the invention
Invent problem to be solved
But, in the prior art, the switching of operation mode is carried out using switching modes such as hand switches.
It is therefore desirable to be able to the Absorption Refrigerator for the operation mode that automatically switches.
The present invention proposes that its object is to provide the absorption system for the operation mode that can automatically switch in view of the foregoing
Cold.
Technical scheme for solving problem
In order to achieve the above object, the present invention provides a kind of Absorption Refrigerator, and it includes heat extraction regenerator, high temperature regeneration
They are carried out pipeline connection and form absorbing liquid and refrigeration respectively by device, low-temperature regenerator, evaporator, condenser and absorber
The circulating path of agent, can carry out being fed to the list that the hot water of above-mentioned heat extraction regenerator heats absorbing liquid as thermal source
Effect operating and the single economic benefits and social benefits fortune for being heated the heating unit that above-mentioned high-temp regenerator has to the absorbing liquid as thermal source
Turn or economic benefits and social benefits operating, the Absorption Refrigerator is characterised by：Including control device, the control device is in water discharge inlet temperature
State more than design temperature is returned as water discharge and continues the cold water outlet temperature of stipulated time and above-mentioned evaporator as cold
When state below water design temperature continues the stipulated time, stop the reheating of above-mentioned heating unit, switch to progress merely with
Supply the single-action operating operated to the hot water of above-mentioned heat extraction regenerator.
In addition, the present invention provides a kind of Absorption Refrigerator, it includes heat extraction regenerator, high-temp regenerator, low-temp recovery
Device, evaporator, condenser and absorber, their progress pipeline connections are formed respectively the circulation road of absorbing liquid and refrigerant
Footpath, can carry out being fed to single-action operating and the general that the hot water of above-mentioned heat extraction regenerator heats absorbing liquid as thermal source
The heating unit that above-mentioned high-temp regenerator has is used as the operating of single economic benefits and social benefits or the economic benefits and social benefits fortune that thermal source is heated to the absorbing liquid
Turn, the Absorption Refrigerator is characterised by：Including control device, cold water outlet temperature of the control device in above-mentioned evaporator
The burning signal for continuing stipulated time and above-mentioned heating unit as the state below cold water design temperature turns into the state of disconnection
When continuing the stipulated time, stop the reheating of above-mentioned heating unit, switch to progress merely with supply to above-mentioned heat extraction regenerator
Hot water operated single-action operating.
It is a feature of the present invention that：In said structure, above-mentioned control device is controlled as follows：Carrying out list
In the state of effect operating, when the state that cold water outlet temperature turns into cold water design temperature+set point of temperature continues the stipulated time, switching
For the operating of single economic benefits and social benefits or economic benefits and social benefits operating for being heated above-mentioned heating unit as thermal source.
It is a feature of the present invention that：In said structure, above-mentioned control device is controlled as follows：Switch to list
After effect operating, by before the stipulated time, even in being judged as that cold water outlet temperature turns into cold water design temperature+regulation temperature
The state of degree is when continuing the stipulated time also without the switching of operating.
Invention effect
According to the present invention, using control device, turn into water discharge in water discharge inlet temperature and return to more than design temperature
State continues the stipulated time and the cold water outlet temperature of evaporator continues the stipulated time as the state below cold water design temperature
When, stop the reheating of heating unit, switch to the single-action for carrying out being operated merely with the hot water of supply to heat extraction regenerator
Operating, therefore, it is possible to automatically by operation mode operate from single economic benefits and social benefits or economic benefits and social benefits operate switch to single-action to operate.
Brief description of the drawings
Fig. 1 is the summary construction diagram of the Absorption Refrigerator of present embodiment.
Fig. 2 is the block diagram for the control structure for representing present embodiment.
Fig. 3 is the flow chart for the action for representing present embodiment.
Embodiment
Hereinafter, one embodiment of the present invention is illustrated referring to the drawings.
Fig. 1 is the summary construction diagram of the Absorption Refrigerator of present embodiment.Absorption Refrigerator 100 is to use water conduct
Refrigerant, using lithium bromide (LiBr) aqueous solution as absorbing liquid, with using by heat source generator (such as solar water
Device or exhaust system) generation lower temperature (e.g., from about 80 DEG C or so) the heat extraction heated to the absorbing liquid of hot water
Heat extraction recycling type (so-called Gene-link) absorption-type cold-hot water dispenser of regenerator.
As shown in figure 1, Absorption Refrigerator 100 includes：Evaporator 1；The absorber 2 being arranged side by side with the evaporator 1；Receive
Receive the evaporator absorber case 3 of the evaporator 1 and absorber 2；High-temp regenerator 5 with gas burner (heating unit) 4；
Low-temperature regenerator 6；The condenser 7 being arranged side by side with the low-temperature regenerator 6；Store the low temperature of the low-temperature regenerator 6 and condenser 7
Regenerator condenser case 8；The heat extraction regenerator 9 of thermal source is used as using hot water for being supplied from miscellaneous equipment etc.；With store the heat extraction again
The heat extraction regenerator case 11 of raw device 9.
In the present embodiment, low-temperature regenerator condenser box 8 links ground with the one of heat extraction regenerator case 11 and formed, gas
(steam) can be connected between heat extraction regenerator 9 and low-temperature regenerator 6.
Returned in addition, Absorption Refrigerator 100 includes low temperature heat exchanger 12, high-temperature heat exchanger 13, refrigerant discharge opeing heat
Device 17, dilute absorbing liquid pump 45, intermediate absorption liquid pump 46, concentrated absorption solution pump 47 and refrigerated medium pump 48 are received, each equipment is via absorption
Liquid pipe 21~25 and the grade of refrigerant pipe 31~35 are connected by pipeline and constitute circulating path.
It is provided with evaporator 1 for refrigerating medium (brine, salt after heat exchange will to be carried out with refrigerant in the evaporator 1
Water) supply is circulated to the cold water pipe 14 of heat load (not shown) (such as air-conditioning device), formed in a part for the cold water pipe 14
Heat-transfer pipe 14A configure in evaporator 1.In addition, in the heat-transfer pipe 14A downstreams of cold water pipe 14, being provided with measure cold at this
The cold water outlet temperature sensor 36 of the temperature of the refrigerating medium of circulation in water pipe 14.
In absorber 2 and condenser 7, the cooling for making cooling water be circulated successively in absorber 2 and condenser 7 is provided with
Water pipe 15, each heat-transfer pipe 15A, 15B formed in a part for the cooling water pipe 15 is arranged respectively at absorber 2 and condenser 7
It is interior.
In addition, in heat extraction regenerator 9, it is provided with for will be by heat source generator (not shown) (for example, solar water
Device or exhaust system) hot water circuit of lower temperature (for example, about 80 DEG C or so) of generation supplied to heat extraction regenerator 9
Heat extraction water supplying pipe 16.The heat extraction water supplying pipe 16 includes：Configure the heat-transfer pipe 16A in heat extraction regenerator 9；With the heat-transfer pipe
The bypass pipe 16B that 16A is connected in parallel；With in order to adjust supply to the flow of heat-transfer pipe 16A hot water and the threeway that switches over
Valve 28.
The entrance side of the water discharge of heat extraction water supplying pipe 16 is provided with heat extraction water temperature sensor 37.
Absorber 2 has the refrigerant vapour for making absorbing liquid absorption be evaporated by evaporator 1, by evaporator absorber case 3
Pressure remain the function of high vacuum state.In the bottom of the absorber 2, it is formed with and stores absorption refrigeration agent steam and dilute
Dilute absorbing liquid storage part 2A of dilute absorbing liquid after releasing, has the dilute of dilute absorbing liquid pump 45 in dilute absorbing liquid storage part 2A connections
Absorb one end of liquid pipe 21.Dilute dilute absorption liquid pipe of branch for absorbing the downstream branch that liquid pipe 21 is included in dilute absorbing liquid pump 45
21A。
The dilute absorption liquid pipe 21A of the branch is after by refrigerant discharge opeing heat regenerator 17, in the low of dilute absorption liquid pipe 21
Collaborate again with dilute absorption liquid pipe 21 in the downstream of temperature heat exchanger 12.It is connected to be arranged in dilute other end for absorbing liquid pipe 21
Diffuser 9A in heat extraction regenerator 9.
In heat extraction regenerator 9, the heat-transfer pipe 16A that the part being configured with heat extraction water supplying pipe 16 is formed, by making
Hot water circulates in the heat extraction water supplying pipe 16, can carry out thermal regeneration to the absorbing liquid after being spread by diffuser 9A, i.e.
Evaporate the refrigerant in absorbing liquid and concentrate the absorbing liquid.
In addition, in the bottom of heat extraction regenerator 9, being formed with the absorption for storing the absorbing liquid after being spread by diffuser 9A
Liquid storage part, one end of the first intermediate absorption liquid pipe 22 with intermediate absorption liquid pump 46 is connected in the absorbing liquid storage part.Should
The other end of first intermediate absorption liquid pipe 22 is by after high-temperature heat exchanger 13, to being formed in high-temp regenerator 5
Heat exchange department 5A top gas-bearing formation portion 5B opening.
In addition, the first intermediate absorption liquid pipe 22 branched into the downstream of intermediate absorption liquid pump 46 first branched pipe 22A and
Second branched pipe 22B, the first branched pipe 22A pass through the exhaust for being arranged on exhaust pathway 40 without high-temperature heat exchanger 13
Heat exchanger 41, backward high-temp regenerator 5 in gas-bearing formation portion 5B inner openings.Second branched pipe 22B is opened into low-temperature regenerator 6
Mouthful.
High-temp regenerator 5 stores gas burner 4 in shell 60, is formed with the top of the gas burner 4 with this
The flame of gas burner 4 carries out the heat exchange department 5A of thermal regeneration as thermal source to absorbing liquid.In heat exchange department 5A connections
Have by gas burner 4 burn after the exhaust pathway 40 that is circulated of discharge gas, the exhaust pathway 40 is provided with exhaust heat
Exchanger 41.In addition, being connected with the gas pipeline 61 of supply fuel gas in gas burner 4 and supplying from air blower 62
The air intake duct 63 of air, the control valve of the amount of control fuel gas and air is provided with the gas pipeline 61 and air intake duct 63
64。
In addition, being provided with the absorbing liquid temperature for determining the temperature for storing the absorbing liquid in shell 60 in high-temp regenerator 5
Sensor 38.
In heat exchange department 5A side, it is formed with and stores after heat exchange department 5A thermal regenerations from heat exchange department 5A streams
The intermediate absorption fluid storage part 5C of the intermediate absorption fluid gone out.Inhaled in the middle of intermediate absorption fluid storage part 5C lower end connection second
One end of liquid collecting tube 23, high-temperature heat exchanger 13 is provided with the second intermediate absorption liquid pipe 23.The high-temperature heat exchanger 13 is
Using the warm of the intermediate absorption fluid from the intermediate absorption fluid storage part 5C high temperature flowed out, to being flowed in the first intermediate absorption liquid pipe 22
The part that dynamic absorbing liquid is heated, can realize the reduction of the Fuel Consumption of the gas burner 4 of high-temp regenerator 5.
The other end of second intermediate absorption liquid pipe 23 connects with being connected the concentrated absorption solution pipe 25 of low-temperature regenerator 6 and absorber 2
Connect.In addition, the upstream side of high-temperature heat exchanger 13 of the second intermediate absorption liquid pipe 23 and absorber 2 are by being inserted with open and close valve
V1 absorption liquid pipe 24 is connected.
The refrigerant vapour that low-temperature regenerator 6 is isolated using high-temp regenerator 5 is as thermal source, to storing in being formed in low temperature
The absorbing liquid of absorbing liquid storage part 6A in regenerator 6 carries out thermal regeneration, in absorbing liquid storage part 6A, is configured with from high temperature
The upper end of regenerator 5 extends to the heat-transfer pipe 31A that a part for the refrigerant pipe 31 of the bottom of low-temperature regenerator 6 is formed.It is logical
Crossing makes refrigerant vapour be circulated in the refrigerant pipe 31, and the warm of refrigerant vapour is passed to storage via above-mentioned heat-transfer pipe 31A
There is absorbing liquid storage part 6A absorbing liquid, the absorbing liquid is further concentrated.
In one end of the absorbing liquid storage part 6A connection concentrated absorption solutions pipe 25 of low-temperature regenerator 6, the concentrated absorption solution pipe 25
The dope diffuser 2C on gas-bearing formation portion 2B top of the other end with being arranged on absorber 2 is connected.It is provided with concentrated absorption solution pipe 25 dense
Absorbing liquid pump 47 and low temperature heat exchanger 12.The low temperature heat exchanger 12 utilizes the absorbing liquid storage part 6B from low-temperature regenerator 6
The warm of the concentrated absorption solution of outflow, to being heated in second dilute dilute absorbing liquid for absorbing liquid pipe 21C flowings.
In addition, the upstream side of concentrated absorption solution pump 47 of concentrated absorption solution pipe 25 and the intermediate absorption fluid of the first intermediate absorption liquid pipe 22
The upstream side of pump 46, is connected by the first bypass pipe 26 of bypass high-temp regenerator 5, in concentrated absorption solution pipe 25, is provided with concentrated absorption solution
Second bypass pipe 27 of pump 47 and bypass low temperature heat exchanger 12.
When the operating of intermediate absorption liquid pump 46 stops, the absorbing liquid flowed out from the absorbing liquid storage part of heat extraction regenerator 9
Pass through the first intermediate absorption liquid pipe 22, the first bypass pipe 26, concentrated absorption solution pump 47, low temperature heat exchanger 12 and concentrated absorption solution pipe 25
In supply to absorber 2.And then, when the operating of concentrated absorption solution pump 47 stops, from the absorbing liquid storage part stream of heat extraction regenerator 9
The absorbing liquid gone out is supplied by the first intermediate absorption liquid pipe 22, the first bypass pipe 26, the second bypass pipe 27 and concentrated absorption solution pipe 25
To absorber 2.
As described above, the gas-bearing formation portion 5B of the high-temp regenerator 5 and refrigerant liquid storage part 7A formed in the bottom of condenser 7
Connected by refrigerant pipe 31.The refrigerant pipe 31 includes heat-transfer pipe 31A of the configuration in the absorbing liquid storage part 6A of low-temperature regenerator 6
With refrigerant discharge opeing heat regenerator 17, the heat-transfer pipe 31A upstream sides of the refrigerant pipe 31 are with the gas-bearing formation portion 2B of absorber 2 by inserting
The refrigerant pipe 32 for entering to be provided with open and close valve V2 is connected.
In addition, in the refrigerant that is flowed out from refrigerant liquid storage part 7A of refrigerant liquid storage part 7A connections of condenser 7
One end of the refrigerant pipe 34 flowed, the other end of the refrigerant pipe 34 is via the U-shaped sealing 34A bent downwards and steaming
Send out the gas-bearing formation portion 1A connections of device 1.
In the refrigerant liquid storage part 1B formed below for storing the refrigerant after liquefying of evaporator 1, the refrigerant liquid
Storage part 1B is with configuring the diffuser 1C on the gas-bearing formation portion 1A tops of evaporator 1 by being inserted with and (being provided with) refrigeration halfway
The refrigerant pipe 35 of agent pump 48 is connected.
Then, the control structure to present embodiment is illustrated.
Fig. 2 is the block diagram for the control structure for representing present embodiment.
As shown in Fig. 2 the Absorption Refrigerator 1 of present embodiment includes controller 50, controller 50 includes control device
51.Control device 51 carries out central control to each several part of Absorption Refrigerator 100, including CPU as computing enforcement division,
ROM, RAM for being stored in nonvolatile manner to the primary control program (PCP) and defined data that can be performed by the CPU etc. and
Other peripheral circuits etc..
In addition, control device 51 is by input heat extraction water temperature sensor 37, cold water outlet temperature sensor 33 respectively and inhales
Receive the detection signal of liquid temperature sensor 38.
In addition, controller 50 includes memory 52, timer 53, operating portion 54 and operating display part 55 respectively.
The control device 51 of controller 50 is by controlling the fuel control valve of the gas burner 4 of Absorption Refrigerator 100
64, the Combustion System of gas burner 4 is carried out, and carry out dilute absorbing liquid pump 45, intermediate absorption liquid pump 46, concentrated absorption solution pump 47
With the drive control of refrigerated medium pump 48.Further, the control device 51 of controller 50 is by carrying out dilute absorbing liquid pump 45, middle suction
Receive the inversion control of liquid pump 46, concentrated absorption solution pump 47 and refrigerated medium pump 48, carry out dilute absorbing liquid pump 45, intermediate absorption liquid pump 46,
The flow control of concentrated absorption solution pump 47 and refrigerated medium pump 48.In addition, control device 51 carries out each valve 28, V1, V2 open and close controlling.
In the present embodiment, control device 51 is controlled as follows：Burnt from the gas having with high-temp regenerator 5
The operating of single economic benefits and social benefits or economic benefits and social benefits that device 4 is heated as thermal source are operated, and automatically switch to be recycled for regenerating to heat extraction
The single-action that the hot water of device 9 is heated as thermal source to absorbing liquid is operated.
Specifically, in the present embodiment, return design temperature T1 of the control device 51 to water discharge set in advance
It is compared with the water discharge inlet temperature T1 ' that is detected by heat extraction water temperature sensor 37.
Judge whether water discharge inlet temperature T1 ' >=water discharge return design temperature T1 state continues stipulated time (example
Such as, 3 minutes) (first condition).
In addition, control device 51 to cold water design temperature T2T2 set in advance with being examined by cold water outlet temperature sensor 33
The cold water outlet temperature T2 ' of survey is compared.
Judge cold water outlet temperature T2 ' turn into below cold water design temperature T2 state whether continue the stipulated time (for example,
3 minutes) (second condition).In the present embodiment, cold water design temperature T2 is for example set as 7 DEG C.
Further, control device 51 judges whether the burning signal of gas burner 4 continues as the state for disconnecting (OFF)
Stipulated time (for example, 3 minutes) (third condition).
Control device 51 judge whether to meet in above-mentioned first condition, second condition and third condition at least two conditions or
All conditions.In the case where being judged as meeting in each condition at least two conditions or all conditions, it is controlled, by operational mode
Formula switches to single-action to operate, and stops the reheating (reheating) of gas burner 4.
Control device 51 judges to be gone out by the cold water that cold water outlet temperature sensor 33 is detected after switching to single-action to operate
Whether the state that mouth temperature T2 ' turns into cold water design temperature T2+ set points of temperature continues the stipulated time (for example, 3 minutes).Herein,
Set point of temperature is, for example, 0.5 DEG C, but can arbitrarily be set between 0.1 DEG C to 5 DEG C.That is, it is 7 making cold water design temperature T2
DEG C when, judge cold water outlet temperature T2 ' turn into 7.5 DEG C state whether continue the stipulated time.
Control device 51 be judged as cold water outlet temperature T2 ' turn into cold water design temperature T2+ set points of temperature state hold
In the case of having continued the stipulated time, operation mode is switched to from single-action operating and heated using gas burner 4 as thermal source
Single economic benefits and social benefits operating or economic benefits and social benefits operating.
But, switch to after single-action operates, before by stipulated time (for example, 5 minutes), even if control device 51
It is being judged as that cold water outlet temperature T2 ' turns into the states of cold water design temperature T2+ set points of temperature and continue for the situation of stipulated time
Under also without the switching of operating.
In addition, carrying out the metering of stipulated time using timer 53.
By being so controlled, it can automatically switch operation mode.
Then, the action to present embodiment is illustrated.
When carrying out the cooling operating such as cold-room, refrigerating medium (example is supplied to heat load (not shown) circulation via cold water pipe 14
Such as, cold water).Control device 51 is make it that (cold water outlet temperature sensor 36 is detected the outlet side temperature of evaporator 1 of refrigerating medium
Temperature) turn into defined design temperature, such as 7 DEG C of mode, control is put into the heat of Absorption Refrigerator 100.
Specifically, control device 51 is for example big and supplied via heat extraction water supplying pipe 16 to heat extraction regenerator in heat load
When the temperature of 9 hot water reaches set point of temperature (for example, 85 DEG C), progress is supplied from heat extraction water supplying pipe 16 to heat extraction regenerator 9
The hot water of rated capacity and single economic benefits and social benefits operating that all pumps 45~48 are started and make gas burn in gas burner 4, with
So that the temperature for the refrigerating medium that cold water outlet temperature sensor 36 is measured turns into defined 7 DEG C mode and controls gas burner 4
Firepower.
In this case, heat extraction regenerator 9 is delivered to by dilute absorbing liquid pump 45 from absorber 2 through dilute absorption liquid pipe 21
Dilute absorbing liquid, the absorbing liquid storage part in the heat extraction regenerator 9, the hot water supplied from heat extraction water supplying pipe 16 is via heat transfer
Pipe 16A tube wall heating, thus, the refrigerant in dilute absorbing liquid is separated by evaporation.
A part for intermediate absorption fluid after absorbing liquid concentration is uprised by refrigerant evaporation separation, passes through and is inhaled in the middle of first
The intermediate absorption liquid pump 46 of liquid collecting tube 22 is heated via high-temperature heat exchanger 13 or exhaust heat exchanger 41 and is sent to high temperature
Regenerator 5.In addition, remaining intermediate absorption fluid is sent to low-temperature regenerator 6 by second branched pipe 22B.
The intermediate absorption fluid of high-temp regenerator 5 is sent in the high-temp regenerator 5 by the flame and high temperature of gas burner 4
Burning gases heating, thus, refrigerant in the intermediate absorption fluid is separated by evaporation.Refrigerant is steamed in high-temp regenerator 5
Hair separation and the intermediate absorption fluid after concentration rise, are sent to concentrated absorption solution pipe 25, and via low via high-temperature heat exchanger 13
The absorbing liquid interflow of warm regenerator 6.
On the other hand, the intermediate absorption fluid for being sent to low-temperature regenerator 6 is supplied from high-temp regenerator 5 through refrigerant pipe 31
And flow into heat-transfer pipe 31A high temperature refrigerant vapour heating, and then refrigerant separation and concentration is more improved, the concentrated absorption solution
With the above-mentioned absorbing liquid interflow via high-temp regenerator 5, absorber is delivered to via low temperature heat exchanger 12 by concentrated absorption solution pump 47
2, from dope diffuser 2C diffusions.
The refrigerant for separating generation in low-temperature regenerator 6 is condensed into condenser 7 and stored in refrigerant liquid storage part 7A.
Then, when refrigerant liquid is largely stored in refrigerant liquid storage part 7A, the refrigerant liquid flows out from refrigerant liquid storage part 7A,
Enter evaporator 1 via refrigerant pipe 34, kicked up due to the operating of refrigerated medium pump 48, cold water pipe is diffused to from diffuser 1C
On 14 heat-transfer pipe 14A.
The refrigerant liquid of (spreading) to heat-transfer pipe 14A is spread from the refrigerating medium of the inside by heat-transfer pipe 14A to capture
Heat of gasification and evaporate, therefore the refrigerating medium passed through from heat-transfer pipe 14A inside is cooled, and so, reduces the refrigerating medium of temperature
Heat load is supplied to from cold water pipe 14 and carries out the cooling operating such as cold-room.
Repeat following circulations：Refrigerant after the evaporation of evaporator 1 enters absorber 2, is supplied from low-temperature regenerator 6
The concentrated absorption solution given and dispensed from top absorbs, and stores dilute absorbing liquid storage part 2A in absorber 2, defeated by dilute absorbing liquid pump 45
Deliver to heat extraction regenerator 9.
When carrying out single economic benefits and social benefits operating, using control device 51, to cause the temperature of the measurement of cold water outlet temperature sensor 36
Degree turns into defined 7 DEG C mode, controls the heating amount of gas burner 4, is specifically supplied with to the combustion of gas burner 4
Expect gas flow.
In addition, in without the single-action of the burning using gas burner 4 operating, absorbing liquid is by from heat extraction water supplying pipe
The hot water of 16 supplies heats in heat extraction regenerator 9 and evaporates refrigerant and separate.Then, the absorbing liquid warp that absorbing liquid concentration is uprised
Absorber 2 is returned to by the first bypass pipe 26, concentrated absorption solution pump 47 and low temperature heat exchanger 12.
On the other hand, the refrigerant vapour that generation is separated in heat extraction regenerator 9 enters condenser 7 via low-temperature regenerator 6
Refrigerant liquid storage part 7A, via refrigerant pipe 34 flow into evaporator 1.
The refrigerant liquid flowed into evaporator 1 carries out following circulations：By the operating of refrigerated medium pump 48 from diffuser 1C
Dispense to the heat-transfer pipe 14A of cold water pipe 14, the refrigerating medium out of by heat-transfer pipe 14A is captured heat and evaporated, into absorption
Device 2 and the absorbing liquid that is dispensed from top absorbs.In addition, the heat produced during absorbing liquid absorption refrigeration agent is configured in absorber 2
The heat-transfer pipe 15A coolings of interior cooling water pipe 15.
When carrying out single-action operating, using control device 51, to cause the temperature of the measurement of cold water outlet temperature sensor 36
As defined 7 DEG C of mode, control the heating amount of heat extraction regenerator 9, be specifically taken into biography from heat extraction water supplying pipe 16
The amount of heat pipe 16A hot water is the aperture of triple valve 28.
Then, operating switching control of the flow chart shown in reference picture 3 to present embodiment is illustrated.
The list that control device 51 is heated in progress using the gas burner 4 that high-temp regenerator 5 has as thermal source
When economic benefits and social benefits are operated or economic benefits and social benefits are operated (ST1), according to the detected value of drainage inlet temperature sensor to water discharge set in advance
The inlet temperature for returning to temperature and water discharge is compared.Judge that water discharge inlet temperature T1 ' turns into water discharge and returns to setting temperature
Whether the state for spending more than T1 continues the stipulated time (for example, 3 minutes) (ST2).
Control device 51 is being judged as states of the water discharge inlet temperature T1 ' as water discharge return more than design temperature T1
(ST2 in the case of continuing the stipulated time (for example, 3 minutes)：It is (YES)), to cold water temperature T2 set in advance and cold water
Outlet temperature is compared.Judge whether states of the cold water outlet temperature T2 ' as below cold water design temperature T2 persistently provides
Time (for example, 3 minutes) (ST3).
Control device 51 be judged as cold water outlet temperature T2 ' turn into below cold water design temperature T2 state persistently provide
(ST3 in the case of time (for example, 3 minutes)：It is), determine whether that the burning signal of gas burner 4 turns into and disconnect (OFF)
State whether continue the stipulated time (for example, 3 minutes) (ST4).
(the ST4 in the case where being judged as meeting all first to third condition of control device 51：It is), to stop gas combustion
The reheating of burner 4, the mode for switching to the single-action for the operating for carrying out the hot water merely with supply to heat extraction regenerator 9 to operate are entered
Row control (ST5).
In single-action operating, control device 51 is according to the cold water outlet temperature detected by cold water outlet temperature sensor 36
T2 ' is adjusted to the aperture M1 of the triple valve 28 of heat extraction water supplying pipe 16, is thus utilized and is flowed in heat extraction water supplying pipe 16
The hot operating of dynamic hot water.
In the state for carrying out single-action operating, control device 51 judges according to the detected value of cold water outlet temperature sensor
Whether the state that cold water outlet temperature T2 ' turns into cold water design temperature T2+ set points of temperature (being in the present embodiment 7.5 DEG C) holds
Continue the stipulated time (for example, 3 minutes) (ST6).
Control device 51 switch to single-action operate after, using timer 53 measure the duration of runs, judge whether by
Stipulated time (for example, 5 minutes) (ST7).(the ST7 before by the stipulated time：No (NO)), even if being judged as cooling water outlet
Temperature T2 ' turn into cold water design temperature T2+ set points of temperature state continue for the stipulated time in the case of also without operating
Switching.
In the case where being judged as that single-action operating have passed through the stipulated time, single economic benefits and social benefits are switched to operate or economic benefits and social benefits operating
(ST8)。
In the operating of single economic benefits and social benefits or economic benefits and social benefits operating, control device 51 is according to cold water outlet temperature T2 ', by controlling gas to fire
The burning of burner 4 carries out the operating heated using high-temp regenerator 5.
As described above, in the present embodiment including control device 51, it is controlled as follows：
Water discharge inlet temperature T1 ', which turns into water discharge and returns to more than design temperature T1 state, continues the cold of stipulated time and evaporator 1
When the state that water outlet temperature T2 ' turns into below cold water design temperature T2 continues the stipulated time, stop (the heating of gas burner 4
Unit) reheating, switch to carry out merely with supply to heat extraction regenerator 9 hot water operating single-action operate.
According to this mode, operation mode can be operated from single economic benefits and social benefits using control device 51 or economic benefits and social benefits operating is cut automatically
It is changed to single-action operating.
In addition, including control device 51 in the present embodiment, it is controlled as follows：In the cold of evaporator 1
Water outlet temperature T2 ' turns into below cold water design temperature T2 state lasting stipulated time and the burning signal of gas burner 4
When state as disconnection continues the stipulated time, stop the reheating of gas burner 4, switch to progress extremely to be arranged merely with supply
The single-action operating of the operating of the hot water of hot recycling device 9.
According to this mode, operation mode can be operated from single economic benefits and social benefits using control device 51 or economic benefits and social benefits operating is cut automatically
It is changed to single-action operating.
In addition, in the present embodiment, in the state of single-action operating is carried out, cold water outlet temperature T2 ' is set as cold water
In the case that the state of constant temperature degree T2+ set points of temperature continues the stipulated time, control device 51 is made with switching to gas burner 4
The single economic benefits and social benefits operating heated for thermal source or the mode of economic benefits and social benefits operating are controlled.
According to this mode, can according to cold water outlet temperature T2 ', from single-action operating automatically switch to single economic benefits and social benefits operating or
Economic benefits and social benefits are operated.
In addition, in the present embodiment, control device 51 after switching to single-action to operate before the stipulated time is passed through, i.e.,
Make the situation for being judged as that states of the cold water outlet temperature T2 ' as cold water design temperature T2+ set points of temperature continue for the stipulated time
Under also without the switching of operating.
According to this mode, can prevent switching operation mode after immediately again switching operating caused by it is unstable
Action.
In addition, present embodiment only represents a mode using the present invention, the present invention is not limited to above-mentioned embodiment party
Formula.
For example, in the present embodiment, illustrating as the heating unit heated in high-temp regenerator to absorbing liquid
The structure for the gas burner 4 for making fuel gas and being heated is provided with, but is not limited to this, for example, also may be used
To be added using the structure with the gas burner for making kerosene or A heavy oil combustions or using the warm of steam or exhaust etc.
The structure of heat.
The explanation of reference
1 evaporator
2 absorbers
4 gas burners (heating unit)
5 high-temp regenerators
6 low-temperature regenerators
7 condensers
9 heat extraction regenerators
12 low temperature heat exchangers
13 high-temperature heat exchangers
14 cold water pipes
15 cooling water pipes
16 heat extraction water supplying pipes
21 dilute absorption liquid pipes
36 cold water outlet temperature sensors
37 heat extraction water temperature sensors
38 absorbing liquid temperature sensors
45 dilute absorbing liquid pumps
46 intermediate absorption liquid pumps
47 concentrated absorption solution pumps
48 refrigerated medium pumps
50 controllers
51 control devices
52 memories
53 timers
100 Absorption Refrigerators.
Claims (6)
1. a kind of Absorption Refrigerator, it include heat extraction regenerator, high-temp regenerator, low-temperature regenerator, evaporator, condenser and
Absorber, their progress pipeline connections is formed respectively the circulating path of absorbing liquid and refrigerant, can be fed to
Single-action operating and had the high-temp regenerator that the hot water of the heat extraction regenerator is heated as thermal source to absorbing liquid
Some heating units are used as the operating of single economic benefits and social benefits or economic benefits and social benefits operating that thermal source is heated to the absorbing liquid, the Absorption Refrigerator
It is characterised by：
Including control device, it is controlled as follows：Turn into water discharge in water discharge inlet temperature and return to design temperature
State above continues the stipulated time and the cold water outlet temperature of the evaporator is held as the state below cold water design temperature
During the continuous stipulated time, stop the reheating of the heating unit, switch to progress merely with supply to the heat extraction regenerator
The single-action operating that hot water is operated.
2. Absorption Refrigerator as claimed in claim 1, it is characterised in that：
The control device is controlled as follows：
In the state of single-action operating is carried out, the state that cold water outlet temperature turns into cold water design temperature+set point of temperature is persistently advised
When fixing time, the operating of single economic benefits and social benefits or economic benefits and social benefits operating for being heated the heating unit as thermal source are switched to.
3. Absorption Refrigerator as claimed in claim 2, it is characterised in that：
The control device is controlled as follows：
Switch to after single-action operates, by before the stipulated time, even in being judged as that cold water outlet temperature sets as cold water
The state of constant temperature degree+set point of temperature is when continuing the stipulated time also without the switching of operating.
4. a kind of Absorption Refrigerator, it include heat extraction regenerator, high-temp regenerator, low-temperature regenerator, evaporator, condenser and
Absorber, their progress pipeline connections is formed respectively the circulating path of absorbing liquid and refrigerant, can be fed to
Single-action operating and had the high-temp regenerator that the hot water of the heat extraction regenerator is heated as thermal source to absorbing liquid
Some heating units are used as the operating of single economic benefits and social benefits or economic benefits and social benefits operating that thermal source is heated to the absorbing liquid, the Absorption Refrigerator
It is characterised by：
Including control device, it is controlled as follows：Set in the cold water outlet temperature of the evaporator as cold water
State below temperature continues the stipulated time and the burning signal of the heating unit continues the stipulated time as the state disconnected
When, stop the reheating of the heating unit, switch to and transported merely with the hot water of supply to the heat extraction regenerator
The single-action operating turned.
5. Absorption Refrigerator as claimed in claim 4, it is characterised in that：
The control device is controlled as follows：
In the state of single-action operating is carried out, the state that cold water outlet temperature turns into cold water design temperature+set point of temperature is persistently advised
When fixing time, the operating of single economic benefits and social benefits or economic benefits and social benefits operating for being heated the heating unit as thermal source are switched to.
6. Absorption Refrigerator as claimed in claim 5, it is characterised in that：
The control device is controlled as follows：
Switch to after single-action operates, by before the stipulated time, even in being judged as that cold water outlet temperature sets as cold water
The state of constant temperature degree+set point of temperature is when continuing the stipulated time also without the switching of operating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-005325 | 2016-01-14 | ||
| JP2016005325A JP2017125653A (en) | 2016-01-14 | 2016-01-14 | Absorption type refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969535A true CN106969535A (en) | 2017-07-21 |
Family
ID=59334909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610766359.9A Pending CN106969535A (en) | 2016-01-14 | 2016-08-30 | Absorption refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017125653A (en) |
| CN (1) | CN106969535A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1427379A (en) * | 1916-11-22 | 1922-08-29 | Charles W Hapgood | Refrigerating apparatus |
| US2109607A (en) * | 1936-01-23 | 1938-03-01 | Servel Inc | Refrigeration |
| JPH09101068A (en) * | 1995-10-02 | 1997-04-15 | Tokyo Gas Co Ltd | Absorption water cooler/heater and its operation control |
| CN104422194A (en) * | 2013-08-30 | 2015-03-18 | 松下电器产业株式会社 | Absorption refrigerator |
| JP2015064129A (en) * | 2013-09-24 | 2015-04-09 | 鹿島建設株式会社 | Air conditioning method, and air conditioning system used in the air conditioning method |
-
2016
- 2016-01-14 JP JP2016005325A patent/JP2017125653A/en active Pending
- 2016-08-30 CN CN201610766359.9A patent/CN106969535A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1427379A (en) * | 1916-11-22 | 1922-08-29 | Charles W Hapgood | Refrigerating apparatus |
| US2109607A (en) * | 1936-01-23 | 1938-03-01 | Servel Inc | Refrigeration |
| JPH09101068A (en) * | 1995-10-02 | 1997-04-15 | Tokyo Gas Co Ltd | Absorption water cooler/heater and its operation control |
| CN104422194A (en) * | 2013-08-30 | 2015-03-18 | 松下电器产业株式会社 | Absorption refrigerator |
| JP2015064129A (en) * | 2013-09-24 | 2015-04-09 | 鹿島建設株式会社 | Air conditioning method, and air conditioning system used in the air conditioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017125653A (en) | 2017-07-20 |
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Application publication date: 20170721 |