CN107356010A - Absorption Refrigerator - Google Patents
Absorption Refrigerator Download PDFInfo
- Publication number
- CN107356010A CN107356010A CN201710286844.0A CN201710286844A CN107356010A CN 107356010 A CN107356010 A CN 107356010A CN 201710286844 A CN201710286844 A CN 201710286844A CN 107356010 A CN107356010 A CN 107356010A
- Authority
- CN
- China
- Prior art keywords
- holding vessel
- internal pressure
- change
- absorbing liquid
- control device
- 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.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 91
- 230000008859 change Effects 0.000 claims abstract description 59
- 239000003112 inhibitor Substances 0.000 claims abstract description 44
- 230000009467 reduction Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 239000003507 refrigerant Substances 0.000 claims description 46
- 239000006096 absorbing agent Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 description 35
- 239000000243 solution Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000012546 transfer Methods 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 239000012266 salt solution Substances 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 238000002309 gasification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005138 cryopreservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000306 recurrent effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention provides the Absorption Refrigerator that a kind of concentration that can correctly judge inhibitor reduces.It includes：Air extractor (70), detection air extractor (70) holding vessel (71) internal pressure pressure tank sensor (76) and control device (51), in the case that control device (51) turns to the slope of the internal pressure change of prescribed limit and holding vessel (71) in the change of the internal pressure of holding vessel (71) below setting, the reduction trend of inhibitor concentration and inhibitor concentration is judged without the sampling site of absorbing liquid.
Description
Technical field
The present invention relates to Absorption Refrigerator, the reduction reason of vacuum is absorption in the machine that more particularly to correctly judges
Refrigeration machine.
Background technology
In general, it is known to, will be above-mentioned including high-temp regenerator, low-temperature regenerator, evaporator, condenser and absorber
Part pipe arrangement connects and the Absorption Refrigerator of the circulating path of each self-forming absorbing liquid and refrigerant.Absorption Refrigerator is for example
Central air-conditioning for office building etc..
In such Absorption Refrigerator, turn into vacuum plant to carry out the evaporation of refrigerant.Therefore it is, it is necessary to fast
Detect the leakage of the air from outside fastly, the abnormal of the incondensable gas such as caused hydrogen produces in machine, promptly adopt
Take necessary countermeasure.
Therefore, in the prior art, such as disclose the logarithmic mean between the absorbing liquid asked for respectively in absorber, cooling water
The pressure of temperature difference and the storage room after incondensable gas is exported, when the two value, any one exceedes rule set in advance
During definite value, exported from abnormal detector and represent abnormal signal that vacuum is abnormal and technology that alarm device acts (such as is joined
According to patent document 1).
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 06-159851 publications
The content of the invention
The invention problem to be solved
But in general, the reduction of the vacuum of Absorption Refrigerator is judged according to the pressure change of holding vessel.
And the reduction of the vacuum of holding vessel can also not condense in addition to vacuum leak in the pollution in cooling water pipe, absorber
When pumping performance deficiency, the concentration of inhibitor (corrosion inhibitor) reduce caused by gas increase.
Such vacuum reduce in the case of, due to can consider many reasons, so even if as prior art that
Sample has obtained the pressure of log-mean temperature difference and storage room, also can not correctly judge that there occurs inhibitor from above-mentioned reason
Concentration reduce.
The present invention is to complete in view of the foregoing, and its object is to provide a kind of inhibitor that can correctly judge
The Absorption Refrigerator that concentration reduces.
For solving the method for problem
To achieve these goals, the present invention provides a kind of Absorption Refrigerator, it is characterised in that：Including high temperature regeneration
Device, low-temperature regenerator, evaporator, condenser and absorber, they are connected with pipe arrangement and forms absorbing liquid and refrigerant respectively
Circulating path, wherein above-mentioned Absorption Refrigerator include air extractor, the above-mentioned air extractor of detection holding vessel inside pressure
The pressure tank sensor and control device of power, above-mentioned control device are providing model in the change of the internal pressure of above-mentioned holding vessel
Enclose and the internal pressure of above-mentioned holding vessel change slope below setting in the case of, sentence without the sampling site of absorbing liquid
The reduction trend of disconnected inhibitor concentration and inhibitor concentration.
Thus, it is being judged as what the change of the internal pressure of holding vessel changed in prescribed limit and the internal pressure of holding vessel
In the case that slope is below setting, the prediction address that inhibitor concentration reduces is indicated using notification unit, so
The slope that internal pressure by judging holding vessel changes, the concentration for the inhibitor that can correctly judge reduce, are possible to a large amount of
Produce incondensable gas, in the case where the pressure of holding vessel changes, can correctly judge be inhibitor concentration reduction
Pressure change caused by caused pressure change or vacuum leak.
In addition, in said structure, above-mentioned control device is being advised in the change for being judged as the internal pressure of above-mentioned holding vessel
In the case of determining the slope of the internal pressure change of scope and above-mentioned holding vessel below setting, it is controlled with using reporting
Portion sends the forecast for representing that inhibitor concentration reduces.
In addition, in said structure, slope of the above-mentioned control device in the internal pressure change for being judged as above-mentioned holding vessel
In the case of bigger than setting, it is controlled to release the forecast for representing that inhibitor concentration reduces.
The effect of invention
The slope changed according to the present invention, the internal pressure by judging holding vessel, can correctly judge inhibitor
Concentration reduces, is possible to largely produce incondensable gas, in the case where the pressure of holding vessel changes, can correctly judge
It is pressure change caused by pressure change caused by the reduction of inhibitor concentration or vacuum leak.
Brief description of the drawings
Fig. 1 is the summary construction diagram of the Absorption Refrigerator of present embodiment.
Fig. 2 is the front view of the outward appearance for the Absorption Refrigerator for representing present embodiment.
Fig. 3 is the block diagram for the control structure for representing present embodiment.
Fig. 4 is the curve map of the relation of the change of the internal pressure and internal pressure that represent holding vessel.
Fig. 5 is the flow chart for the action for representing present embodiment.
Description of reference numerals
1 evaporator
2 absorbers
4 gas burners (heating arrangements)
5 high-temp regenerators
6 low-temperature regenerators
7 condensers
12 low temperature heat exchangers
13 high-temperature heat exchangers
14 cold water pipes
15 cooling water pipes
16 row's warm water supply pipes
21 dilute absorption liquid pipes
45 dilute absorbing liquid pumps
47 concentrated absorption solution pumps
48 refrigerated medium pumps
50 controllers
51 control devices
52 memories
53 timers
55 notification units
70 air extractors
71 holding vessels
76 pressure tank sensors
100 Absorption Refrigerators
Embodiment
1st invention is a kind of Absorption Refrigerator, it is characterised in that：Including high-temp regenerator, low-temperature regenerator, evaporation
Device, condenser and absorber, they are connected with pipe arrangement and forms the circulating path of absorbing liquid and refrigerant respectively, wherein above-mentioned
Absorption Refrigerator include air extractor, the above-mentioned air extractor of detection holding vessel internal pressure pressure tank sensor and
Control device, above-mentioned control device the internal pressure of above-mentioned holding vessel change in prescribed limit and the inside of above-mentioned holding vessel
In the case that the slope of pressure change is below setting, inhibitor concentration and inhibitor are judged without the sampling site of absorbing liquid
The reduction trend of concentration.
Thus, in the case where the pressure of holding vessel changes, it can correctly judge that the reduction of inhibitor concentration is led
Pressure change caused by the pressure change or vacuum leak of cause.
2nd invention is a kind of Absorption Refrigerator, it is characterised in that：Above-mentioned control device is being judged as above-mentioned holding vessel
The change of internal pressure in the case where the slope that prescribed limit and the internal pressure of above-mentioned holding vessel change is below setting,
It is controlled to send the forecast for representing that inhibitor concentration reduces using notification unit.
Thus, in the case of pressure change caused by the reduction of inhibitor concentration occurs, outside the content report.
3rd invention is a kind of Absorption Refrigerator, it is characterised in that：Above-mentioned control device is being judged as above-mentioned holding vessel
Internal pressure change slope ratio setting greatly in the case of, be controlled with release represent that inhibitor concentration reduces pre-
Report.
Thus, it is not the drop of inhibitor concentration in the case where the internal pressure of holding vessel changes slope ratio setting greatly
The low possibility that causes but vacuum leak occurs is higher, so represent that inhibitor concentration reduces by releasing pre- observes and predicts
Accuse, the report of vacuum leak can be carried out.
Hereinafter, with reference to the accompanying drawings of an embodiment of the invention.In addition, the present invention is not limited by present embodiment.
(embodiment 1)
Fig. 1 is the summary construction diagram of the Absorption Refrigerator of present embodiment.Absorption Refrigerator 100 is can be by cold water
Or Warm water circulation is supplied to the absorption cold warm water machine of load (not shown), refrigerant uses water, and absorbing liquid uses lithium bromide
(LiBr) aqueous solution.
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 shell 3 of above-mentioned evaporator 1 and absorber 2；High-temp regenerator with gas burner (heating arrangements) 4
5；Low-temperature regenerator 6；The condenser 7 being arranged side by side with the low-temperature regenerator 6；Above-mentioned with storage low-temperature regenerator 6 and condenser 7
Low-temperature regenerator condenser shell 8.
Returned in addition, Absorption Refrigerator 100 includes low temperature heat exchanger 12, high-temperature heat exchanger 13, discharge refrigerant heat
Device 17, dilute absorbing liquid pump 45, concentrated absorption solution pump 47 and refrigerated medium pump 48 are received, above-mentioned each equipment is via absorption liquid pipe 21~25 and system
The grade of refrigerant tube 31~35 carries out pipe arrangement connection and forms circulating path.
It is provided with evaporator 1 and does not scheme for will be supplied in evaporator 1 with the brine recycling after refrigerant heat exchange
The cold water pipe 14 for the heat load (such as conditioner) shown, the heat-transfer pipe 14A for being formed at a part for the cold water pipe 14 match somebody with somebody
Put in evaporator 1.
Absorber 2 and condenser 7 are provided with the cooling water pipe 15 for making cooling water flow to absorber 2 and condenser 7 successively, shape
Each heat-transfer pipe 15A, 15B into the part in the cooling water pipe 15 are arranged respectively in absorber 2 and condenser 7.
Absorber 2, which has, makes absorbing liquid absorb the refrigerant vapour evaporated in evaporator 1, by evaporator absorber shell 3
Interior pressure remains the function of high vacuum state.Formed with absorption refrigeration agent steam and it is diluted in the bottom of the absorber 2
Dilute absorbing liquid accumulating part 2A that the dilute absorbing liquid formed is accumulated, dilute absorbing liquid accumulating part 2A are with having the dilute of dilute absorbing liquid pump 45
Absorb one end connection of liquid pipe 21.Dilute dilute absorbing liquid of branch for absorbing liquid pipe 21 and being included in the downstream branch of dilute absorbing liquid pump 45
Pipe 21A.
The dilute absorption liquid pipe 21A of the branch hands over via after discharge refrigerant heat regenerator 17 in the Low Temperature Thermal of dilute absorption liquid pipe 21
Collaborate again with dilute absorption liquid pipe 21 in the downstream of parallel operation 12.Dilute other end for absorbing liquid pipe 21 is via high-temperature heat exchanger
In the gas-bearing formation portion 5B openings positioned at the top for forming the heat exchange department 5A in high-temp regenerator 5 after 13.
Dilute absorption liquid pipe 21 is branched off into the 2nd branched pipe 21B in the downstream of low temperature heat exchanger 12, and the 2nd branched pipe 21B exists
The inner opening of low-temperature regenerator 6.
The storage gas burner 4 in housing 60 of high-temp regenerator 5, in the top of the gas burner 4 formed with this
The flame of gas burner 4 is the heat exchange department 5A that thermal source carries out thermal regeneration to absorbing liquid.Heat exchange department 5A with gas
The exhaust pathway 40 that the flow of exhaust that burner 4 burns leads to connects, and the exhaust pathway 40 is provided with exhaust heat exchanger 41.
In addition, it is connected with the air of flue 61 and supply from air blower 62 for supplying fuel gas in gas burner 4
Air intake duct 63, the control valve 64 of the amount of control fuel gas and air is provided with above-mentioned gas pipe 61 and air intake duct 63.
Heat exchange department 5A side formed with after heat exchange department 5A thermal regenerations from the heat exchange department 5A outflow
The intermediate absorption fluid accumulating part 5C that intermediate absorption fluid stockpiles.Intermediate absorption fluid accumulating part 5C lower end and the 2nd intermediate absorption fluid
One end connection of pipe 23, high-temperature heat exchanger 13 is provided with the 2nd intermediate absorption liquid pipe 23.The high-temperature heat exchanger 13 utilizes
The warm of the intermediate absorption fluid of the high temperature flowed out from intermediate absorption fluid accumulating part 5C is to the absorbing liquid in dilute absorption liquid pipe 21 flowing
Heated, realize the reduction of the Fuel Consumption of gas burner 4 in high-temp regenerator 5.
The other end of 2nd intermediate absorption liquid pipe 23 connects with the concentrated absorption solution pipe 25 for being connected low-temperature regenerator 6 and absorber 2
Connect.In addition, the upstream side of high-temperature heat exchanger 13 of the 2nd intermediate absorption liquid pipe 23 and absorber 2 are by being provided with open and close valve V1's
Liquid pipe 24 is absorbed to connect.
Low-temperature regenerator 6, using the refrigerant vapour separated in high-temp regenerator 5 as thermal source, to being formed in low-temp recovery
The absorbing liquid that absorbing liquid accumulating part 6A in device 6 is stockpiled carries out thermal regeneration, is configured with to be formed in absorbing liquid accumulating part 6A
The heat-transfer pipe 31A of a part for the refrigerant pipe 31 of the bottom of low-temperature regenerator 6 is extended to from the upper end of high-temp regenerator 5.
By making refrigerant vapour flow through the refrigerant pipe 31, via heat-transfer pipe 31A, the warm of refrigerant vapour, which is transferred to, is accumulated in suction
Liquid accumulating part 6A absorbing liquid is received, the absorbing liquid is further concentrated.
The absorbing liquid accumulating part 6A of low-temperature regenerator 6 is connected with one end of concentrated absorption solution pipe 25, the concentrated absorption solution pipe 25
The dope dispenser 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 accumulating part 6A from low-temperature regenerator 6
The warm of the concentrated absorption solution of outflow heats to the dilute absorbing liquid flowed in dilute absorption liquid pipe 21.
In addition, the bypass bypassed to concentrated absorption solution pump 47 and low temperature heat exchanger 12 is provided with concentrated absorption solution pipe 25
Pipe 27.
In the case where the operating of concentrated absorption solution pump 47 stops, it is accumulated in the absorbing liquid accumulating part 6A's of low-temperature regenerator 6
Absorbing liquid is fed into absorber 2 by concentrated absorption solution pipe 25 and bypass pipe 27.
As described above, it is formed at the gas-bearing formation portion 5B of high-temp regenerator 5 and the refrigerant liquid accumulating part 7A of the bottom of condenser 7
Connected by refrigerant pipe 31.The refrigerant pipe 31 includes the heat-transfer pipe for being configured at the absorbing liquid accumulating part 6A of low-temperature regenerator 6
31A and discharge refrigerant heat regenerator 17, the heat-transfer pipe 31A of the refrigerant pipe 31 upstream side and the gas-bearing formation portion 2B of absorber 2
Connected by the refrigerant pipe 32 for being provided with open and close valve V2.
In addition, the refrigerant liquid accumulating part 7A of condenser 7 from the refrigerant of refrigerant liquid accumulating part 7A outflows with flowing
Refrigerant pipe 34 one end connection, the other end of the refrigerant pipe 34 is via the U sealings 34A and evaporator bent downwards
1 gas-bearing formation portion 1A connections.
In the refrigerant liquid accumulating part 1B formed below for stockpiling the refrigerant after liquefying of evaporator 1, the system is configured at
The dispenser 1C on the gas-bearing formation portion 1A of cryogen liquid accumulating part 1B and evaporator 1 top is by being provided with the refrigerant of refrigerated medium pump 48
Pipe 35 connects.
Fig. 2 is the front view for the Absorption Refrigerator for representing present embodiment.
As depicted in figs. 1 and 2, the Absorption Refrigerator 100 of present embodiment includes air extractor 70, and air extractor 70 wraps
Include storage device 74.
The exhaust tube 72 connected with the gas-bearing formation portion 2B of absorber 2 is connected with the top of air extractor 70.In air extractor
70 bottom is connected with the recurrent canal 73 connected with the lower section of absorber 2.
The absorption liquid pipe 75 from the flow export side branch of dilute absorbing liquid pump 45, the absorbing liquid are connected with dilute absorption liquid pipe 21
Pipe 75 is on the way connected via displacer 77 with the top of air extractor 70.
In addition, the top of air extractor 70 is connected with holding vessel 71, it is provided with holding vessel 71 for detecting holding vessel 71
Internal pressure pressure tank sensor 76.
Moreover, dilute absorbing liquid of dilute absorption liquid pipe 21 is taken into air extractor via liquid pipe 75 is absorbed using displacer 77
70 storage device 74.Because of the dilute absorbing liquid flowed into by absorbing liquid pipe 75, the inside of storage device 74 turns into negative pressure, thus,
Absorbing liquid being not only accumulated in after the incondensable gas on the top of absorber 2 but also refrigerant vapour, gasification etc. passes through exhaust tube
72 are directed to the top of holding vessel 71.
It is directed to the absorbing liquid after in the gas of storage device 74, refrigerant vapour and gasification and is added to and is accumulated in storage
The absorbing liquid of the lower section of cryopreservation device 74 and absorbed, but because incondensable gas can not dissolve in absorbing liquid, so being accumulated in storage
The top of cryopreservation device 74.Moreover, the absorbing liquid for being accumulated in the lower section of storage device 74 returns to absorber 2 by recurrent canal 73.
Then, the control structure of 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 100 of present embodiment includes controller 50, controller 50 includes control and filled
Put 51.Control each several part of Absorption Refrigerator 100 maincenter of control device 51, including CPU as computing enforcement division, it is non-easily
Store to the property lost can by the memories 52 such as ROM, RAM of primary control program (PCP) that the CPU is performed, defined data etc., its
Its peripheral circuit etc..
In addition, control device 51 is configured to be transfused to the detection signal of pressure tank sensor 76.
In addition, controller 50 includes timer 53, operating portion 54 and notification unit 55.
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, also, carry out dilute absorbing liquid pump 45, concentrated absorption solution pump 47 and refrigerated medium pump 48
Drive control.Also, the control device 51 of controller 50 carries out dilute absorbing liquid pump 45, concentrated absorption solution pump 47 and refrigerated medium pump 48
Inversion control, thus carry out the flow control of dilute absorbing liquid pump 45, concentrated absorption solution pump 47 and refrigerated medium pump 48.In addition, control dress
Put 51 open and close controllings for being configured to carry out each valve V1, V2.
In addition, in the present embodiment, the inside that control device 51 detects holding vessel 71 by pressure tank sensor 76 is pressed
Power P, air extractor 70 is controlled to cause internal pressure P to be for example maintained 7kPa/h~10kPa/h.For example, holding vessel 71 is interior
Portion pressure P turn into 10kPa/h in the case of, act air extractor 70, make the internal pressure P of holding vessel 71 reduce, as
In the case of 7kPa/h, it is controlled such that air extractor 70 stops.
In addition, control device 51 asks for the internal pressure P of holding vessel 71 change.Specifically, control device 51 every
Certain time (such as every 30 minutes) detects the internal pressure P of holding vessel 71, obtain the internal pressure P1 that detects before and
Current internal pressure P2, internal pressure P1 and internal pressure P2 difference are asked for, to ask for the change of every 1 hour of internal pressure P
Change.
Whether within the limits prescribed control device 51 judges internal pressure change in the way of following formula.
1.0 (kPa/h)≤internal pressures change (kPa/h)≤1.6 (kPa/h)
In addition, the scope of the 1.0kPa/h~1.6kPa/h can arbitrarily be set, numerical value shown here is not limited to.
In addition, control device 51 asks for the slope (Δ (Δ p/ Δs t)) (kPa/h) of the internal pressure change of holding vessel 71.
It can be seen from the research of applicant, what the slope of the internal pressure of holding vessel 71 change reduced in the concentration of inhibitor
In the case of and produce vacuum leak in the case of, inhibitor concentration reduce in the case of slope it is small, produce vacuum leak
In the case of slope it is big.
Therefore, control device 51 is as described above, the internal pressure change in holding vessel 71 turns to 1.0kPa/h~1.6kPa/h
Scope in the case of, as shown in following formula, judge internal pressure change slope whether as setting
Below 0.3kPa/h.
Slope (the Δ (Δ p/ Δs t)) (kPa/h)≤0.3 (kPa/h) of storage room pressure change
In addition, the value as the 0.3kPa/h of the setting can arbitrarily be set, numerical value shown here is not limited to.
Control device 51 be judged as internal pressure change slope in below 0.3kPa/h in the case of, be controlled with
The prediction address that the concentration for the inhibitor being indicated using notification unit 55 in the inside of holding vessel 71 is reduced.
In addition, control device 51 be judged as internal pressure change slope ratio 0.3kPa/h greatly in the case of, controlled
Make to release the prediction address that the concentration of the inhibitor in the inside for representing holding vessel 71 carried out using notification unit 55 is reduced.
Because in the case that internally the slope ratio 0.3kPa/h of pressure change is big, it is believed that be not the concentration drop of inhibitor
Low but generation vacuum leak, in this case, the report that vacuum leak occurs is indicated from notification unit 55.
In addition, in the present embodiment, report is predicted by the notification unit 55 of controller 50, still, such as can profit
With report can be predicted by the external system of the wired or wireless remote control monitoring system to be communicated etc. with controller 50
Accuse.
Fig. 4 is the curve map of the relation of the change of the internal pressure and internal pressure that represent holding vessel 71.
In the case where the internal pressure for being controlled such that holding vessel 71 turns into 7kPa/h~10kPa/h, 10kPa/h is attached
The change of near internal pressure turns to 1.0kPa/h~1.6kPa/h region, as shown in oblique line in Fig. 4, turns into and is predicted report
The region of announcement.
In addition, the internal pressure of holding vessel 71 is the change of the internal pressure near 7kPa/h in more than 2.0kPa/h and stored up
Region of the internal pressure in more than 10kPa/h of tank 71 is deposited, turns into and carries out the region of audit report as with vacuum leak.
Then, the action of present embodiment is illustrated.
In the cooling operating of cooling etc., it is (such as cold to heat load (not shown) to circulate supply salt solution via cold water pipe 14
Water).The heat of the control input Absorption Refrigerator 100 of control device 51, to cause the outlet side temperature of the evaporator 1 of salt solution
(temperature detected by cold water outlet temperature sensor (not shown)) turn into defined design temperature, such as 7 DEG C.
Specifically, control device 51 starts all pumps 45,47,48, and carries out the gas in gas burner 4
Combustion System, thus control gas burner 4 firepower, with cause cold water outlet temperature sensor measure salt solution temperature into
For defined 7 DEG C.
In this case, dilute absorbing liquid from absorber 2 via it is dilute absorption liquid pipe 21 using dilute absorbing liquid pump 45 via
Low temperature heat exchanger 12 and high-temperature heat exchanger 13 or exhaust heat exchanger 41 are heated and are sent to high-temp regenerator 5.
The absorbing liquid of high-temp regenerator 5 is sent to, by the flame and high temperature of gas burner 4 in the high-temp regenerator 5
Burning gases heating, so in the absorbing liquid refrigerant evaporation separation.Make refrigerant evaporation separation in high-temp regenerator 5
And concentration rise after intermediate absorption fluid, concentrated absorption solution pipe 25 is sent to via high-temperature heat exchanger 13, and via low-temp recovery
The absorbing liquid interflow of device 6.
On the other hand, the absorbing liquid of low-temperature regenerator 6 is sent to, is supplied from high-temp regenerator 5 via refrigerant pipe 31
And be flowed into heat-transfer pipe 31A high temperature refrigerant vapour heating, carry out refrigerant separation and concentration further uprises, the dense suction
Liquid is received with collaborating via the above-mentioned absorbing liquid of high-temp regenerator 5, is sent using concentrated absorption solution pump 47 via low temperature heat exchanger 12
To absorber 2, spread from dope dispenser 2C.
The refrigerant of generation is separated in low-temperature regenerator 6, is condensed into condenser 7 and is accumulated in refrigerant liquid accumulating part
7A.Then, when refrigerant liquid accumulating part 7A stockpiles more refrigerant liquid, the refrigerant liquid flows from refrigerant liquid accumulating part 7A
Go out, enter evaporator 1 via refrigerant pipe 34, the operating by refrigerated medium pump 48 spreads to cold water by drawing liquid from dispenser 1C
On the heat-transfer pipe 14A of pipe 14.
The refrigerant liquid spread on heat-transfer pipe 14A, from the salt solution of the inside by heat-transfer pipe 14A capture heat of gasification and
Evaporation, so being cooled by the salt solution of heat-transfer pipe 14A inside, the salt solution after such temperature declines is supplied to from cold water pipe 14
The coolings such as cooling operating is carried out to heat load.
Then, the refrigerant after being evaporated in evaporator 1 enters absorber 2, supplied from low-temperature regenerator 6 and from top
The concentrated absorption solution of distribution absorbs, and is accumulated in dilute absorbing liquid accumulating part 2A of absorber 2, high temperature is transported to using dilute absorbing liquid pump 45
Regenerator 5, such circulation is repeated.
Then, the flow chart shown in reference picture 5 illustrates the control of present embodiment.
In the present embodiment, (such as every 30 minutes) acquirement is sensed control device 51 by pressure tank at intervals of set time
The internal pressure (ST1) for the holding vessel 71 that device 76 detects.Internal pressure P of the control device 51 based on acquirement, calculate internal pressure
Change (ST2).
Then, control device 51 judge internal pressure change whether 1.0kPa/h~1.6kPa/h scope (ST3).
(the ST3 in the case where being judged as scope of the internal pressure change in 1.0kPa/h~1.6kPa/h：It is), then sentence
Whether the slope of disconnected internal pressure change is at below 0.3kPa/h (ST4).
Be judged as internal pressure change slope in below 0.3kPa/h in the case of (ST4：Be), control device 51 from
The prediction address (ST5) that the concentration for the inhibitor that notification unit 55 is indicated in the inside of holding vessel 71 reduces.
On the other hand, be judged as internal pressure change slope ratio 0.3kPa/h greatly in the case of (ST6：It is), control
What the concentration that device 51 releases the inhibitor in the inside of the expression holding vessel 71 carried out using notification unit 55 reduced pre- observes and predicts
Accuse (ST7).
By being predicted report like this, for the operator of maintenance for carrying out Absorption Refrigerator 100, Neng Goushi
The concentration of other inhibitor reduces, and clearly can be distinguished with internal pressure change caused by vacuum leak.
As described above, in the present embodiment, including air extractor 70, detect air extractor 70 holding vessel
The pressure tank sensor 76 and control device 51 of 71 internal pressure, change of the control device 51 in the internal pressure of holding vessel 71
Change in the case where the slope that prescribed limit and the internal pressure of holding vessel 71 change is below setting, without absorbing liquid
Sampling site judges the reduction trend of inhibitor concentration and inhibitor concentration.
Thus, occur holding vessel 71 pressure change in the case of, can correctly judge be inhibitor concentration reduction
Pressure change caused by caused pressure change or vacuum leak.
In addition, in the present embodiment, control device 51 is providing in the change for being judged as the internal pressure of holding vessel 71
In the case that the slope that scope and the internal pressure of holding vessel 71 change is below setting, it is controlled to utilize notification unit 55
It is indicated the prediction address of inhibitor concentration reduction.
Thus, can be by outside the content report in the case of pressure change caused by the reduction of inhibitor concentration occurs
Portion.
In addition, in the present embodiment, the slope ratio that control device 51 changes in the internal pressure for being judged as holding vessel 71
In the case that setting is big, it is controlled to release the prediction address for representing that inhibitor concentration reduces.
Thus, in the case where the internal pressure of holding vessel 71 changes slope ratio setting greatly, due to not being that inhibitor is dense
Degree, which reduces, to be caused but occurs that the possibility of vacuum leak is higher, so representing pre- the observing and predicting of inhibitor concentration reduction by releasing
Accuse, the report of vacuum leak can be carried out.
In addition, present embodiment is to represent a mode using the present invention, the invention is not restricted to above-mentioned embodiment.
For example, in the present embodiment, make combustion to being provided with as the heating arrangements that absorbing liquid is heated with high-temp regenerator
Material gas burning is illustrated come the structure of the gas burner 4 heated, but not limited to this, such as can also use
Including making lam-oil, the structure of gas burner of A heavy oil combustions, the knot that is heated using the warm of steam, discharge gas etc.
Structure.
Claims (3)
- A kind of 1. Absorption Refrigerator, it is characterised in that：Including high-temp regenerator, low-temperature regenerator, evaporator, condenser and absorber, they are connected and difference shape with pipe arrangement Into absorbing liquid and the circulating path of refrigerant, whereinPressure tank of the Absorption Refrigerator including air extractor, the internal pressure of the holding vessel of the detection air extractor passes Sensor and control device,The control device the internal pressure of the holding vessel change in prescribed limit and the internal pressure of the holding vessel In the case that the slope of change is below setting, inhibitor concentration and inhibitor concentration are judged without the sampling site of absorbing liquid Reduction trend.
- 2. Absorption Refrigerator as claimed in claim 1, it is characterised in that：The control device is being judged as the change of the internal pressure of the holding vessel in prescribed limit and the holding vessel In the case that the slope of portion's pressure change is below setting, it is controlled and represents that inhibitor concentration is sent out to be sent using notification unit The raw forecast reduced.
- 3. Absorption Refrigerator as claimed in claim 1 or 2, it is characterised in that：The control device is carried out in the case where being judged as the slope ratio setting of internal pressure change of the holding vessel greatly Control to release the forecast for representing that inhibitor concentration reduces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016090122A JP2017198402A (en) | 2016-04-28 | 2016-04-28 | Absorption type refrigerator |
| JP2016-090122 | 2016-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107356010A true CN107356010A (en) | 2017-11-17 |
Family
ID=60239085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286844.0A Pending CN107356010A (en) | 2016-04-28 | 2017-04-27 | Absorption Refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017198402A (en) |
| CN (1) | CN107356010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115954185A (en) * | 2023-03-14 | 2023-04-11 | 科畅电气有限公司 | High-temperature-resistant oil-leakage-proof maintenance-free energy-saving transformer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7122538B2 (en) * | 2018-04-24 | 2022-08-22 | パナソニックＩｐマネジメント株式会社 | Absorption chiller |
-
2016
- 2016-04-28 JP JP2016090122A patent/JP2017198402A/en active Pending
-
2017
- 2017-04-27 CN CN201710286844.0A patent/CN107356010A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115954185A (en) * | 2023-03-14 | 2023-04-11 | 科畅电气有限公司 | High-temperature-resistant oil-leakage-proof maintenance-free energy-saving transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017198402A (en) | 2017-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7573200B2 (en) | Absorption chiller and method for controlling absorption chiller | |
| CN107356010A (en) | Absorption Refrigerator | |
| CN101730825A (en) | Be used for controlling the method for temperature and the system of absorption chiller | |
| CN107388615B (en) | Absorption refrigerator | |
| CN102200357B (en) | Absorption refrigerator | |
| CN102141319B (en) | Absorption-type refrigerator | |
| JP2018169075A (en) | Absorption type refrigerating machine | |
| JP7122538B2 (en) | Absorption chiller | |
| JP6789846B2 (en) | Absorption chiller | |
| CN101900450B (en) | Absorption refrigerator | |
| CN101893345A (en) | Absorption-type refrigerator | |
| JP7365612B2 (en) | Absorption chiller, absorption chiller control method and controller | |
| JP6653444B2 (en) | Absorption refrigerator | |
| JP6789847B2 (en) | Absorption chiller | |
| JP2003302119A (en) | Absorption refrigeration unit | |
| CN101688704A (en) | Be used to expand the method and system of the adjusting ratio of absorption chiller | |
| CN108072191A (en) | Absorption Refrigerator | |
| JP2011033261A (en) | Absorption type refrigerating machine | |
| JP6078898B2 (en) | Absorption system | |
| KR100869274B1 (en) | Absorption Chiller | |
| JP2015222147A (en) | Absorption type water heater | |
| KR0183567B1 (en) | Variable load control apparatus of absorptive refrigerator | |
| KR20020050507A (en) | Absorption chiller-heater | |
| CN106969535A (en) | Absorption refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171117 |
|
| WD01 | Invention patent application deemed withdrawn after publication |