CN101871709A - Absorption system - Google Patents
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- CN101871709A CN101871709A CN201010159409A CN201010159409A CN101871709A CN 101871709 A CN101871709 A CN 101871709A CN 201010159409 A CN201010159409 A CN 201010159409A CN 201010159409 A CN201010159409 A CN 201010159409A CN 101871709 A CN101871709 A CN 101871709A
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- cold water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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Abstract
The invention provides a kind of absorption system, can cut down Fuel Consumption and have an energy-saving effect, and, the change of the hot and cold water supplied with to load as thermal source suppressed.In the absorption system of basis from the platform numerical control system signal controlling operating number of central control device, this absorption system constitutes has many absorption refrigerating machines and this central control device, the target temperature that will be in the minimum absorption refrigerating machine of preferential position is set at, the temperature that the direction that the target temperature of comparing other absorption refrigerating machines reduces to running ability departs from.Perhaps, constituting the running ability that makes the hot and cold water pump reduces.
Description
Technical field
The present invention relates to a kind of absorption system, its heat power supply device with many absorption-type cold-hot water dispensers or absorption refrigerating machine is connected with central control device, based on the load of air conditioner load etc., the operating number or the ability of described heat power supply device are controlled, to supply with suitable thermal source to described load.
Background technology
Absorption system up to now utilizes signal wiring that the heat power supply device of many absorption-type cold-hot water dispensers or absorption refrigerating machine is connected with central control device as mentioned above and constitutes, stop indication according to running, the platform number and the running ability (for example with reference to patent documentation 1) thereof of control running from described central control device.
In such absorption system, for example, hot and cold water outlet side at each absorption refrigerating machine is provided with temperature sensor, based on the hot and cold water outlet side temperature (hereinafter referred to as target temperature) that is set in as the absorption refrigerating machine of infrastructure device (ベ Yi ス Machine), the running ability of other absorption refrigerating machines of control running, and, detect by described temperature sensor, temperature from the hot and cold water of these absorption refrigerating machines, even if be contracted in the aperture of the fuel valve of each absorption refrigerating machine setting, said temperature is also low than described target temperature when Cold water supply turns round, when hot water supply is turned round also than described target temperature height, in these cases, utilize described central control device, via described signal wiring, absorption refrigerating machine beyond described infrastructure device sends the indication that shuts down, otherwise, control aperture with the fuel valve of the absorption refrigerating machine of opening running, even if the described fuel valve of all absorption refrigerating machines becomes full open position, when the temperature of the hot and cold water that detects when described temperature sensor is not reduced to described target temperature or does not rise to described target temperature, via of the indication of described signal wiring, carry out the increase and decrease operation of operating number from described central control device to the absorption refrigerating machine transmission entry into service that is in halted state.Thus, carrying out thermal source to the load that is connected with described absorption system supplies with.
Patent documentation 1:(Japan) spy opens flat 08-014689 communique
But, in aforesaid absorption system, even if be in the state that the aperture of the fuel valve of the absorption refrigerating machine that will turn round is shunk as mentioned above, the described target temperature that sends to whole absorption refrigerating machines becomes same target temperature, for example, if the design temperature when being set in the Cold water supply running that the absorption refrigerating machine of infrastructure device sets is 7 ℃, the target temperature of whole absorption refrigerating machines becomes 7 ℃.Therefore, for example, when described load exists when reducing trend, each absorption refrigerating machine turns round under described target temperature, causes operating number excessively to reduce, and thus, the temperature of the hot and cold water of supplying with to described load produces change.In addition, as mentioned above, according to the platform numerical control system of carrying out from central control device, estimate that next the absorption refrigerating machine that stops also to turn round under above-mentioned 7 ℃, therefore, also more or less there is the part of waste in Fuel Consumption in this absorption refrigerating machine.
Summary of the invention
In order to solve above-mentioned problem, in the present invention, its purpose is to provide a kind of absorption system, according to the platform numerical control system of carrying out from central control device, cut down the Fuel Consumption of next estimating the absorption refrigerating machine that stops, promote energy-conservation, and, even if the operating number of the absorption refrigerating machine of running changes, also can suppress temperature change to the hot and cold water of load supply.
The absorption system of first invention, have: many absorption refrigerating machines, hot and cold water pump that will carry to load at hot and cold water that these absorption refrigerating machines generated and the central control device that the control of these absorption refrigerating machines is managed concentratedly, the increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine, carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number, so that the temperature of described hot and cold water becomes target temperature, described absorption system is characterised in that, the described target temperature that the next one stops the absorption refrigerating machine of order will be in the absorption refrigerating machine in the running, when Cold water supply turns round, be made as target temperature than the high set point of temperature of target temperature of other absorption refrigerating machines, when hot water supply is turned round, be made as target temperature than the low set point of temperature of target temperature of other absorption refrigerating machines.
The absorption system of second invention, have: many absorption refrigerating machines, hot and cold water pump that will carry to load at hot and cold water that these absorption refrigerating machines generated and the central control device that the control of these absorption refrigerating machines is managed concentratedly, the increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine, carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number, so that the temperature of described hot and cold water becomes target temperature, described absorption system is characterised in that, each absorption refrigerating machine has described hot and cold water pump, the running ability that the next one stops the described hot and cold water pump of absorption refrigerating machine in proper order will be in the absorption refrigerating machine in the running, when Cold water supply turns round and hot water supply when running, be made as the hot and cold water pump's who has than other absorption refrigerating machines the low running ability of running ability.
The absorption system of the 3rd invention, have: many absorption refrigerating machines, hot and cold water pump that will carry to load at hot and cold water that these absorption refrigerating machines generated and the central control device that the control of these absorption refrigerating machines is managed concentratedly, the increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine, carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number, so that the temperature of described hot and cold water becomes target temperature, described absorption system is characterised in that, carry out the first following running control or these two running controls of the second running control, wherein first kind of running is controlled to be: be in the described target temperature that the next one stops the absorption refrigerating machine of order in the absorption refrigerating machine in will turning round, when Cold water supply turns round, be made as target temperature than the high set point of temperature of target temperature of other absorption refrigerating machines, when hot water supply is turned round, be made as target temperature than the low set point of temperature of target temperature of other absorption refrigerating machines; Second kind of running is controlled to be: each absorption refrigerating machine has described hot and cold water pump, the running ability that the next one stops the described hot and cold water pump of absorption refrigerating machine in proper order will be in the absorption refrigerating machine in the running, when Cold water supply turns round and hot water supply when running, be made as the hot and cold water pump's who has than other absorption refrigerating machines the low running ability of running ability.
Absorption system has: many absorption refrigerating machines, hot and cold water pump that will carry to load at hot and cold water that these absorption refrigerating machines generated and the central control device that the control of these absorption refrigerating machines is managed concentratedly, the increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine, carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number, so that the temperature of described hot and cold water becomes target temperature, described absorption system carries out two kinds of following running controls, wherein a kind of running is controlled to be: be in the described target temperature that the next one stops the absorption refrigerating machine of order in the absorption refrigerating machine in will turning round, when Cold water supply turns round, be made as target temperature than the high set point of temperature of target temperature of other absorption refrigerating machines, when hot water supply is turned round, be made as target temperature than the low set point of temperature of target temperature of other absorption refrigerating machines; Another kind of running is controlled to be: each absorption refrigerating machine has described hot and cold water pump, the running ability that the next one stops the described hot and cold water pump of absorption refrigerating machine in proper order will be in the absorption refrigerating machine in the running, when Cold water supply turns round and hot water supply when running, be made as the hot and cold water pump's who has than other absorption refrigerating machines the low running ability of running ability, thus, can prevent excessive fuel consumption, and, even if reduce operating number, also can do one's utmost to suppress from of the change of this absorption system to the temperature of the hot and cold water of load conveying by platform numerical control system.
Description of drawings
Fig. 1 is the skeleton diagram of the control of absorption refrigerating machine;
Fig. 2 is the roughly sequential chart of action of expression absorption refrigerating machine;
Fig. 3 is the structure chart that expression has the absorption system of the present invention of many absorption refrigerating machines and central control device;
Fig. 4 is the skeleton diagram of the structure of expression absorption system;
Fig. 5 be the expression this absorption system from entry into service to stop roughly the action flow chart;
Fig. 6 is the roughly flow chart of action of the platform numerical control system of this absorption system of expression.
Description of reference numerals
1 high-temp regenerator, 2 low-temperature regenerators, 3 condensers
4 evaporimeters, 5 absorbers, 6 low temperature heat exchangers
7 high-temperature heat exchangers, 8 refrigerated medium pumps 9 absorb liquid pump
10 cooling water pumps, 1 hot and cold water pump
12 high-temp regenerator temperature sensors, 13 hot and cold water temperature sensors
14 cooling-water temperature sensors, 15 hot water pipes, 16 gas burners
17 cooling water pipes, 20 control panels 21A～21C absorption refrigerating machine
27 central control devices, 28 communications patchings, 00 absorption refrigerating machine
The specific embodiment
Below, with reference to the embodiment of description of drawings absorption system of the present invention.
(embodiment)
Absorption refrigerating machine utilizes following principle refrigeration to carry out the Cold water supply running, even if promptly also can evaporate under low temperature (about 5 ℃) under the high vacuum state at 100 ℃ of water that evaporate in atmosphere.The absorption liquid that will circulate in described absorption refrigerating machine disperses to make its evaporation and absorb heat to cold water pipe, carries out the Cold water supply running thus, wherein, circulates at described cold water pipe to the salt solution (Block ラ イ Application) that side apparatus circulates that utilizes that is arranged at indoor grade.
With reference to Fig. 1, the structure of described absorption refrigerating machine 100 mainly is made of following five parts: high-temp regenerator 1, and in order to make the absorbability regeneration of absorption liquid, it utilizes burner 16 to heat, make the cold-producing medium in the absorption liquid carry out the steam separation, obtain the absorption liquid of intermediate concentration; Low-temperature regenerator 2, it utilizes at high-temp regenerator 1 and produces the absorption liquid that the steam that separates heats the intermediate concentration that generates at high-temp regenerator 1 once again, further improves absorption liquid concentration and generates the absorption liquid of high concentration; Condenser 3, it is provided with in abutting connection with low-temperature regenerator 2, and make in high-temp regenerator 1 evaporation and separate and in low-temperature regenerator 2 heat radiations and the refrigerating fluid of condensation liquefaction converges with the refrigerant vapour that separates in these low-temperature regenerator 2 evaporations, utilize the cooling water condensation that cooling water pipe 17 in, circulates and generate refrigerating fluid; Evaporimeter 4, it will disperse on hot water pipe 15 at the refrigerating fluid that described condenser 3 generates, and this refrigerating fluid is evaporated once again and carries out the cooling of salt solution, circulates in described hot water pipe 15 to this salt solution (water) of not shown duty cycle; Absorber 5, it makes the absorption liquid of the high concentration of supplying with from low-temperature regenerator 2 be absorbed in the cold-producing medium that evaporimeter 4 evaporates once again.In addition, in order to improve the efficient of this absorption refrigerating machine 100, also have: low temperature heat exchanger 6, it makes to absorb at absorber 5 and causes absorption liquid (rare absorption liquid) that absorbability reduces from the cold-producing medium of described evaporimeter 4 and carry out heat exchange from low-temperature regenerator 2 to the absorption liquid of the high concentration of absorber 5 circulations; High-temperature heat exchanger 7, it makes at rare absorption liquid of low temperature heat exchanger 6 circulations and from high-temp regenerator 1 and carries out heat exchange to the absorption liquid of the intermediate concentration of low-temperature regenerator 2 circulations; Refrigerated medium pump 8 disperses on its refrigerating fluid hot water pipe 15 in being located at this evaporimeter 4 that self cooling condenser 3 is flowed in evaporimeter 4; Absorb liquid pump 9, its self-absorption device 5 is carried rare absorption liquid to high-temp regenerator 1; Cooling water pump 10, its make in absorber 5 and condenser 3 in circulation and the cooling water that carries out the cooling of cold-producing medium etc. circulates; The hot and cold water pump 11, and it makes the salt solution that is cooled in evaporimeter 4 to described duty cycle.Also has control panel 20, the temperature data of temperature sensor that it is taken into from the absorption liquid pump 9 that this absorption liquid is circulated, refrigerated medium pump 8 and is used for the CRANK PULSES of the central control device described later of this absorption refrigerating machine running, carries out the detection of each several part temperature with being used to headed by the high-temp regenerator temperature sensor 12, carry out high-temp regenerator 1 burner 16 combusting firepower adjusting, computing and export the signal that the aperture of each pump or each control valve is regulated.
The roughly working order of this absorption refrigerating machine body then, is described with reference to sequential chart shown in Figure 2.At first, when the running index signal that receives from described central control device, output hot and cold water pump's 11 running is earlier indicated and is made the cold water as the water cold-producing medium begin circulation, as the answer that this hot and cold water pump 11 has run well, sends interlocking signal here from described hot and cold water pump 11.Then, the running indication of output cooling water pump 10 makes cooling water begin circulation, as the affirmation that this cooling water pump 10 has run well, sends interlocking signal here from described cooling water pump 10.Then, when the control panel 20 of described absorption refrigerating machine 100 receives above-mentioned two interlocking signals, make burner 16 igniting in the high-temp regenerator 1, it is taken fire, meanwhile, absorbing liquid pump 9 and refrigerated medium pump 8 turns round, make absorption liquid begin circulation, constitute operating condition, next make its running to not shown cooling tower pressure fan output running indication, as the affirmation that this cooling tower pressure fan has run well, send interlocking signal here from described cooling tower pressure fan, the control panel 20 of described absorption refrigerating machine 100 receives this signal.In the operation process of this absorption refrigerating machine, according to predefined hot and cold water design temperature (target temperature) with by the temperature difference between the hot and cold water temperature sensor 13 detected hot and cold water temperature, the quantity combusted of adjusting burner 16 reaches the circulating mass of refrigerant at refrigerated medium pump 8, and, carry out the running of cooling tower pressure fan according to by cooling-water temperature sensor 14 detected cooling water temperatures.And, when the input stop signal, at first, shrink the quantity combusted of burner 16 and it is stopped, next, refrigerated medium pump 8 and cooling water pump 10 are stopped, last, make hot and cold water pump 11 and absorb liquid pump 9 to stop, finishing running.
Next, with reference to Fig. 3 the raising of absorption refrigerating machine COP in the sub-load running is described.Fig. 3 represents figure that separately value compare with respect to the running ability and the relation between the specific fuel consumption of cooling load by percentage to absorption refrigerating machine.
Promptly, Fig. 3 is that the running ability of absorption refrigerating machine is expressed as 100% figure with specific fuel consumption when being 100% (specified running), though not shown, if utilize thermal unit separately that it is compared, then the COP value is about 1.3, in Fig. 3, if on this chain-dotted line, the running ability and the specific fuel consumption of absorption refrigerating machine are passed, then are output as 1, therefore with respect to input 1, with similarly above-mentioned, COP is about 1.3.
And solid line is represented the running ability and the specific fuel consumption of actual absorption refrigerating machine, with reference to Fig. 3 as can be known, ultimate operational capability is 100%, and the specific fuel consumption of this moment is 100%, in addition, minimum running ability is approximately about 20%, and specific fuel consumption also is approximately about 20%.
At this, from minimum running ability be near about 20% to about 30% near, be illustrated by the broken lines, this situation is slightly different because of machine or ability, under the state that turns round below the burning control range, in the scope of this dotted line, burner for combustion is by lighting or close the control of burning at the burner for combustion that is equipped on absorption refrigerating machine, in the represented scope of this solid line more than dotted line, according to the control of burning of the power of quantity combusted.
But,, form the curve that is lower than the chain-dotted line shown in the above-mentioned COP=1.3 and depicts mild circular arc for the running of the sub-load between this minimum running ability and the ultimate operational capability.Its expression is with respect to running ability, and specific fuel consumption reduces, and in other words, expression COP becomes more than 1.3.That is, turn round, then can cut down Fuel Consumption, can realize alleviating the operation of air conditioner of operating cost if operate as instigator's absorption refrigerating machine with this sub-load.In addition, by cutting down Fuel Consumption as mentioned above, can also consider operation of air conditioner to the influence of environment.
So, utilize Fig. 4～Fig. 6 explanation to operate as main method of operation with the sub-load of absorption refrigerating machine of the present invention, Fig. 4 is the absorption system that for example has central control device 27 and three absorption refrigerating machine 21A～21C, for example by connecting based on the communications patching 28 that overlaps line (cross り and join Line) and constituting.
In addition, in the present embodiment, be made as the overlap joint line though will connect the communications patching 28 of central control device 27 and each absorption refrigerating machine 21A～21C, be not limited to this, also can constitute from central control device 27 and connect communications patching 28 individually to each absorption refrigerating machine 21A～21C.
Absorption refrigerating machine 21A～21C a side has at least respectively: hot and cold water temperature sensor 13A～13C, high-temp regenerator 1A～1C, detect the temperature of this high-temp regenerator high-temp regenerator temperature sensor 12A～12C, burner 16A～16C, carry out with the running control of the absorption refrigerating machine 21A～21C headed by the burning of this burner control and to the 20A～20C of control of communication portion of central control device 27.From each absorption refrigerating machine 21A～21C, data such as machine, rated capacity, cold water temperature, high temperature regeneration actuator temperature send to central control device 27 by communications patching 28.
In addition, in the present embodiment, absorption refrigerating machine 21A is called machine No. one, absorption refrigerating machine 21B is called machine No. two, absorption refrigerating machine 21C is called machine No. three, the priority of these absorption refrigerating machines 21A～21C running is absorption refrigerating machine 21A, absorption refrigerating machine 21B, the order of absorption refrigerating machine 21C, describe in proper order with this, but this priority and refrigerator numbering are irrelevant, both can come in proper order by the refrigerating capacity of each absorption refrigerating machine 21A～21C to determine, can make also perhaps that to carry out the absorption refrigerating machine that reclaims from the heat extraction of external heat source preferential.
In the opposing party's central control device 27, these data that receive are carried out integrated management, the indication that shuts down to each absorption refrigerating machine 21A～21C, the indication of running ability.In addition, in central control device 27, store the part throttle characteristics data of absorption refrigerating machine in advance, though not shown, by the console switch that the card that operates in this central control device 27 is provided with, set the target temperature of self-absorption formula refrigerator 21A～cold water temperature that 21C takes out etc.
Then, when the running switch that is provided with by the card that operates in central control device 27, when indication is turned round, according to Fig. 5 and flow chart shown in Figure 6, entry into service control and operating number control.
At first, when receiving described running indication, calculate the mean value Tia (S1) of the cold water temperature data that self-absorption formula refrigerator 21A～21C receives, then calculate the temperature difference Tdif (S2) of this mean value Tia and target temperature Ts, according to the flow rate calculation air conditioner load a (S3) of this temperature difference Tdif and hot and cold water.
At this, if the flow constant flow rate mode of described hot and cold water (when only turning round when hot and cold water pump 11 carries out ON/OFF (working/stop) control or according to converting means) with rated capacity, then it is set as this hot and cold water pump's 11 metered flow, when utilizing converting means etc. to carry out conversion control, the flow of described hot and cold water was as metered flow when described hot and cold water pump 11 was turned round with the rated frequency of stipulating (for example 60Hz), according to the ratio to the operating frequency of hot and cold water pump's output such as described metered flow and this converting means certainly, calculate and obtain this hot and cold water pump's 11 flow.
Then, judge whether this absorption system is in (S4) in the running, if be in the running, then confirm whether to exist stop signal (S5),, then stop to handle (S6) if there is stop signal, return step S1, if there is not stop signal, then carry out and the corresponding numerical control system of the increase and decrease of air conditioner load (S21), enter step S20.
In above-mentioned steps S4, if this absorption system is not in the running, then confirm whether to exist CRANK PULSES (S7), if there is not CRANK PULSES, then get back to step S1, if there is CRANK PULSES, then will be saved in memory g (S8) at the air conditioner load a that step S3 calculates, the refrigerating capacity b (1) that sets a machine (is absorption refrigerating machine 21A at this) to running indication ability e (i) (S9), the target temperature Ts (i) of each absorption refrigerating machine is set at the employed target temperature Ts of above-mentioned steps S2 (S10), deduct this running indication ability e (i) from memory g and obtain subtraction value C (S11), judge that whether this subtraction value C is than zero big (S12), if subtraction value C is than zero big value, then subtraction value C is saved in memory d (S13), and the value of memory g is replaced with the value (S14) of subtraction value C, the refrigerating capacity b (2) that sets No. two machines (is absorption refrigerating machine 21B at this) to running indication ability e (i) (S15), get back to step S10, calculate once more.Promptly, by subtracting calculation according to air conditioner load a successively from a machine, distribute the refrigerating capacity corresponding with air conditioner load a successively from a machine, making subtraction value C is zero or negative value, thereby the distribution that is judged to be the running ability corresponding with described air conditioner load a finishes.
In step S12, if be judged to be subtraction value C is value zero or for bearing, then the target temperature Ts (i) of absorption refrigerating machine is made as and departs from set point of temperature from above-mentioned target temperature Ts and (for example depart from 1 ℃ from target temperature Ts, when turning round, departs from Cold water supply to the high-temperature direction, when hot water supply is turned round, depart to the low temperature direction) temperature (S16), judge whether subtraction value C is zero (S17), if subtraction value C is zero, then enter step S19, if subtraction value C is negative value, value before will subtracting calculation at last in step S13 is that the value of memory d is set (S18) to running indication ability e (i), the indication of the indication ability that will turn round e (i) and described target temperature Ts (i) and running beginning sends to each absorption refrigerating machine 21A～21C, thereby entry into service (S19), and the air conditioner load a that will calculate in step S3 preserves (S20) to memory f, get back to step S1, thus, carry out the processing of this flow chart repeatedly.
At this, in the present embodiment, as from the distribution of air conditioner load a to the running ability of each absorption refrigerating machine, be illustrated with the situation of distributing successively from a machine (absorption refrigerating machine 21A), but this only is in order to make the explanation clearing, in fact, and for the control of controlling or make the equalization duration of runs by turns of turning round, also can distribute running abilities, not need to distribute running ability successively since a machine especially from No. two machines or from No. three machines.
In addition, as mentioned above, will be as the target temperature Ts of target target temperature Ts (i) as this absorption refrigerating machine, the target temperature Ts (i) of the absorption refrigerating machine of only last running, when Cold water supply turns round to than the high temperature direction of described target temperature Ts, in addition, when hot water supply is turned round to the temperature that departs from than the low temperature direction of described target temperature Ts as target temperature Ts (i), send to the absorption refrigerating machine that is indicated as entry into service, therefore, Yun Zhuan described absorption refrigerating machine must become the sub-load operating condition at last, so can cut down the fuel quantity that this absorption refrigerating machine consumes, and COP also improves, and can obtain energy-saving effect.
Then, with reference to Fig. 6 the platform numerical control system of the step S21 of the subprogram that becomes above-mentioned flow chart is described.At first, obtain the preceding air conditioner load of once calculating in described memory f, preserved and the poor h (S30) between this air conditioner load a that calculates, judge whether this difference h increases (S31), if do not increase, then judge whether to reduce (S32), if also do not reduce, the subprogram that then finishes this numerical control system enters step S20 shown in Figure 5.
If the poor h of the air conditioner load of calculating at step S30 is bigger and be judged to be air conditioner load a and increased than zero, then by increasing the running ability of the absorption refrigerating machine that priority is minimum in the absorption refrigerating machine in the current running, judge whether to provide and the corresponding refrigerating capacity of described poor h (S33), if the corresponding refrigerating capacity with described poor h can be provided, then select the absorption refrigerating machine (S34) that priority is minimum in the described absorption refrigerating machine in the current running, make the running ability of this absorption refrigerating machine increase (S35), enter step S20, if the corresponding refrigerating capacity with described poor h can not be provided, then selection is in the absorption refrigerating machine (S36) of the next priority of halted state, the target temperature Ts (i) of this absorption refrigerating machine (is for example departed from 1 ℃ from target temperature Ts as departing from set point of temperature from above-mentioned target temperature Ts, when turning round, departs from Cold water supply to the high-temperature direction, when hot water supply is turned round, depart to the low temperature direction) temperature, and, target temperature Ts (i) with the absorption refrigerating machine that priority is minimum in the absorption refrigerating machine in the current running, with other the target temperature Ts (i) that is in the absorption refrigerating machine in the running similarly, be made as above-mentioned target temperature Ts (S37), in addition, the running ability of this absorption refrigerating machine is made as rated capacity (S38), to the indication (S39) of turning round of the minimum absorption refrigerating machine of priority and the absorption refrigerating machine that is in the next priority of halted state, enter step S20.
In addition, in step S32, if the poor h of air conditioner load is negative value, then reduce by the running ability that makes the absorption refrigerating machine that priority is minimum in the absorption refrigerating machine in the current running, judge whether to provide and the corresponding refrigerating capacity of described poor h (S40), if the corresponding refrigerating capacity with described poor h can be provided, then select the absorption refrigerating machine (S41) that priority is minimum in the described absorption refrigerating machine in the current running, the running ability of this absorption refrigerating machine is reduced (S42), enter step S20, if the corresponding refrigerating capacity with described poor h can not be provided, then select the next to the lowest absorption refrigerating machine of priority (S43) in the described absorption refrigerating machine in the current running, the target temperature Ts (i) of this absorption refrigerating machine (is for example departed from 1 ℃ from target temperature Ts as depart from set point of temperature from target temperature Ts, when turning round, departs from Cold water supply to the high-temperature direction, when hot water supply is turned round, depart to the low temperature direction) temperature (S44), make the absorption refrigerating machine that priority is minimum in the absorption refrigerating machine in the current running stop (S45), and, reduce the running ability of the next to the lowest described absorption refrigerating machine of priority and make its running (S46), enter step S20.
As mentioned above, target temperature Ts (i) conduct by the absorption refrigerating machine that priority is minimum in the absorption refrigerating machine in will turning round makes its running from the target temperature that the target temperature Ts of other absorption refrigerating machine departs from, thereby at least one absorption refrigerating machine becomes the sub-load running, therefore, COP improves, and also can cut down Fuel Consumption, so can be energy-conservation as absorption system.
In addition, as aforesaid absorption system, has the hot and cold water pump that can control and can change ability according to each absorption refrigerating machine at each absorption refrigerating machine, with respect to the minimum absorption refrigerating machine of priority in the absorption refrigerating machine in the running, also can make described hot and cold water pump's operating frequency reduce ormal weight.
Thus, be made as target temperature Ts (i) identical with the high absorption refrigerating machine of other priority and it is turned round, the amount that reduces with the hot and cold water flow is correspondingly also carried out the sub-load running, therefore, with above-mentioned situation similarly can be energy-conservation.
The industry practicality
The present invention is applicable to the absorption system that is made of heat power supply devices such as centralized Control device and many absorption refrigerating machines, can cut down Fuel Consumption and have an energy-saving effect, and, can suppress the change of the hot and cold water supplied with to load as thermal source.
Claims (3)
1. absorption system; Have: the hot and cold water pump that many absorption refrigerating machines, the hot and cold water that will generate at these absorption refrigerating machines are carried to load and the centralized Control device that the control of these absorption refrigerating machines is managed concentratedly; The increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine; Carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number; So that the temperature of described hot and cold water becomes the target temperature; Described absorption system is characterised in that
The described target temperature that the next one stops the absorption refrigerating machine of order will be in the absorption refrigerating machine in the running, when Cold water supply turns round, be made as target temperature than the high set point of temperature of target temperature of other absorption refrigerating machines, when hot water supply is turned round, be made as target temperature than the low set point of temperature of target temperature of other absorption refrigerating machines.
2. absorption system; Have: the hot and cold water pump that many absorption refrigerating machines, the hot and cold water that will generate at these absorption refrigerating machines are carried to load and the centralized Control device that the control of these absorption refrigerating machines is managed concentratedly; The increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine; Carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number; So that the temperature of described hot and cold water becomes the target temperature; Described absorption system is characterised in that
Each absorption refrigerating machine has described hot and cold water pump, the running ability that the next one stops the described hot and cold water pump of absorption refrigerating machine in proper order will be in the absorption refrigerating machine in the running, when Cold water supply turns round and hot water supply when running, be made as the hot and cold water pump's who has than other absorption refrigerating machines the low running ability of running ability.
3. absorption system; Have: the hot and cold water pump that many absorption refrigerating machines, the hot and cold water that will generate at these absorption refrigerating machines are carried to load and the centralized Control device that the control of these absorption refrigerating machines is managed concentratedly; The increase and decrease of the load that is supplied to as thermal source according to the hot and cold water that will flow out from this absorption refrigerating machine; Carry out the starting of described absorption refrigerating machine or stop and making the increase and decrease of its operating number; So that the temperature of described hot and cold water becomes the target temperature; Described absorption system is characterised in that
Carry out following two kinds of running controls, wherein a kind of running is controlled to be: be in the described target temperature that the next one stops the absorption refrigerating machine of order in the absorption refrigerating machine in will turning round, when Cold water supply turns round, be made as target temperature than the high set point of temperature of target temperature of other absorption refrigerating machines, when hot water supply is turned round, be made as target temperature than the low set point of temperature of target temperature of other absorption refrigerating machines; Another kind of running is controlled to be: each absorption refrigerating machine has described hot and cold water pump, the running ability that the next one stops the described hot and cold water pump of absorption refrigerating machine in proper order will be in the absorption refrigerating machine in the running, when Cold water supply turns round and hot water supply when running, be made as the hot and cold water pump's who has than other absorption refrigerating machines the low running ability of running ability.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP103803/09 | 2009-04-22 | ||
| JP2009103803A JP2010255880A (en) | 2009-04-22 | 2009-04-22 | Absorption type system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101871709A true CN101871709A (en) | 2010-10-27 |
| CN101871709B CN101871709B (en) | 2012-07-18 |
Family
ID=42996717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010159409XA Expired - Fee Related CN101871709B (en) | 2009-04-22 | 2010-03-31 | Absorption system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2010255880A (en) |
| CN (1) | CN101871709B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402929A (en) * | 2014-09-10 | 2016-03-16 | 矢崎能源系统公司 | absorbed type refrigeration system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7213476B2 (en) * | 2018-04-24 | 2023-01-27 | パナソニックＩｐマネジメント株式会社 | Absorption chiller |
| CN115355731B (en) * | 2022-08-19 | 2024-05-03 | 广东工业大学 | Energy-saving control device and control method for cooling tower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156013A (en) * | 1990-05-29 | 1992-10-20 | Sanyo Electric Co., Ltd. | Control device for absorption refrigerator |
| JPH06147684A (en) * | 1992-11-09 | 1994-05-27 | Kawaju Reinetsu Kogyo Kk | Controlling method for number of absorption refrigerator and cold/hot water machine |
| JPH0814689A (en) * | 1994-06-29 | 1996-01-19 | Sanyo Electric Co Ltd | Control of number of parallel installation type absorption freezers set in operation |
| JP2003075012A (en) * | 2001-09-05 | 2003-03-12 | Sanyo Electric Co Ltd | Absorption refrigerating system |
| JP2003106703A (en) * | 2001-09-28 | 2003-04-09 | Sanyo Electric Co Ltd | Absorption system |
| CN100410597C (en) * | 2005-06-09 | 2008-08-13 | 三洋电机株式会社 | Operation method of single or dual uses adsorption type freezing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285398A (en) * | 1995-04-13 | 1996-11-01 | Hitachi Ltd | Operation control method in absorbing cold or hot water machine and operation control device |
| JP2006046839A (en) * | 2004-08-06 | 2006-02-16 | Toho Gas Co Ltd | Cold and hot water carrying system |
-
2009
- 2009-04-22 JP JP2009103803A patent/JP2010255880A/en active Pending
-
2010
- 2010-03-31 CN CN201010159409XA patent/CN101871709B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156013A (en) * | 1990-05-29 | 1992-10-20 | Sanyo Electric Co., Ltd. | Control device for absorption refrigerator |
| JPH06147684A (en) * | 1992-11-09 | 1994-05-27 | Kawaju Reinetsu Kogyo Kk | Controlling method for number of absorption refrigerator and cold/hot water machine |
| JPH0814689A (en) * | 1994-06-29 | 1996-01-19 | Sanyo Electric Co Ltd | Control of number of parallel installation type absorption freezers set in operation |
| JP2003075012A (en) * | 2001-09-05 | 2003-03-12 | Sanyo Electric Co Ltd | Absorption refrigerating system |
| JP2003106703A (en) * | 2001-09-28 | 2003-04-09 | Sanyo Electric Co Ltd | Absorption system |
| CN100410597C (en) * | 2005-06-09 | 2008-08-13 | 三洋电机株式会社 | Operation method of single or dual uses adsorption type freezing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402929A (en) * | 2014-09-10 | 2016-03-16 | 矢崎能源系统公司 | absorbed type refrigeration system |
| CN105402929B (en) * | 2014-09-10 | 2018-05-29 | 矢崎能源系统公司 | Absorption refrigeration system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010255880A (en) | 2010-11-11 |
| CN101871709B (en) | 2012-07-18 |
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