CN1743764A - Single double effect absorbing type refrigerator and operation method thereof - Google Patents
Single double effect absorbing type refrigerator and operation method thereof Download PDFInfo
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- CN1743764A CN1743764A CNA2005100994569A CN200510099456A CN1743764A CN 1743764 A CN1743764 A CN 1743764A CN A2005100994569 A CNA2005100994569 A CN A2005100994569A CN 200510099456 A CN200510099456 A CN 200510099456A CN 1743764 A CN1743764 A CN 1743764A
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- regenerator
- temperature
- liquid pump
- low heat
- condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
- F25B49/043—Operating continuously
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/13—Pump speed control
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
A second rare absorption liquid pump P2 is mounted on the side of a low heat source regenerator 9 of a rare absorption liquid pipe 15 connecting an absorber 2 and the low heat source regenerator 9 through a first rare absorption liquid pump P1 and the like; and the upstream side of the second rare absorption liquid pump P2 and the upstream side of an intermediate absorption liquid pump P3 of an intermediate absorption liquid pipe 16 connecting the low heat source regenerator 9 and a high-temperature regenerator 5 through the intermediate absorption liquid pump P3 are communicated with each other through a bypass pipe 7. In the low heat source regenerator 9 with an intermediate absorption liquid pipe 16 connected to its bottom, a heat transfer pipe 9B is mounted under a sprayer 9A. The start/stop of the second rare absorption liquid pump P2 is controlled on the basis of a temperature of the heat source flowing into the low heat source regenerator 9 or discharged from the low heat source regenerator 9, and a temperature of the brine flowing into an evaporator 1 or discharged from the evaporator 1, and a rotating speed of the second rare absorption liquid pump P2 is controlled on the basis of the temperature of the brine.
Description
Technical field
The present invention relates to single and double effect absorption refrigerator (comprising absorption water cooler and heater).
Background technology
For example, such Absorption Refrigerator comprises known single and double effect absorption refrigerator 100X, and it is constructed as shown in Figure 5.It comprises gas burner 4 so that the radiation combustion heat.High-temp regenerator 5 is set so that utilize the combustion heat from gas burner 4 radiation, thereby heating absorbs liquid with vaporized refrigerant respectively as thermal source.The low-temperature regenerator 6 of economic benefits and social benefits regenerator also is set so that utilize the refrigerant vapour of supplying by high-temp regenerator 5, thereby heating absorbs liquid with the difference vaporized refrigerant as thermal source.Make the condenser 7 and the low-temperature regenerator 6 of economic benefits and social benefits condenser and put the refrigerant vapour of supplying by low-temperature regenerator 6 with condensation.The warm water discharge of low heat regenerator 9 utilization such as about 80 ℃ relative low temperature of single-action regenerator is as thermal source, thereby heating absorbs liquid with the difference vaporized refrigerant.The warm water discharge of described relative low temperature is provided through low heat supply pipe 28 by co-generation unit etc.Make the condenser 10 and the low heat regenerator 9 of single-action condenser and put the refrigerant vapour of supplying by low heat regenerator 9 with condensation.Evaporimeter 1 is set so that evaporate by condenser 7 and 10 refrigerant liquids of supplying.Absorber 2 is set so that the high concentration that will absorb by low-temperature regenerator 6 supplies from the refrigerant vapour of evaporimeter 1 evaporation absorbs the liquid.Lower concentration absorbing liquid pump P1, intermediate concentration absorption liquid pump P3, refrigerated medium pump P5 or the like also are set in addition (for example, referring to patent document 1:JP-A06-341729, Fig. 1).
In the drawings, reference marker 12 expression low temperature heat exchangers; 13 expression high-temperature heat exchangers; 26 expressions are used for the cold and hot or warm Brine Pipe that carries out air conditioning by the cycling thermal load (not shown); 27 expression refrigeration water pipes; 28A represents from the bypass duct of low heat supply pipe 28 branches; And 28B represents to be arranged on the triple valve in the low heat supply pipe 28.
In single and double effect absorption refrigerator 100X, even when the warm water discharge as thermal source is not supplied to low heat regenerator 9, also can be by lower concentration absorbing liquid pump P1 to the lower concentration absorbing liquid of low heat regenerator 9 supplies from absorber 2, described low heat regenerator 9 be supplied with the condenser 10 of cooling water and put, and be maintained at low temperature in inside.The temperature that flows into the lower concentration absorbing liquid of low heat regenerator 9 is higher than the saturation temperature of low heat regenerator 9.Correspondingly, automatically spray and make temperature lower and cause the problem of heat loss.
When in low heat regenerator 9, not circulating lower concentration absorbing liquid from absorber 2, can be leaked in the low heat regenerator 9 as the warm water discharge of thermal source by lower concentration absorbing liquid pump P1.In this case, the warm water discharge of leakage can heat the absorption liquid in the low heat regenerator 9, and excessive condensation absorbs liquid and make its crystallization, and this is a problem.
Therefore, need prevent to flow into the automatic injection of the warm water discharge the low heat regenerator, and need when in low heat regenerator superheated and condensation, to prevent to absorb the crystallization of liquid from absorber.Its scheme is a problem.
Summary of the invention
In order to solve the problems referred to above of prior art, the invention provides a kind of single and double effect absorption refrigerator, it comprises the evaporimeter/absorber cylinder that holds evaporimeter and absorber; Low-temperature regenerator/condenser the cylinder that holds low-temperature regenerator and condenser; Hold the low heat regenerator of thermal source of use such as warm water discharge and the low heat regenerator/condenser cylinder of condenser; High-temp regenerator; Low temperature heat exchanger; High-temperature heat exchanger; Lower concentration absorbing liquid pump; And intermediate concentration absorption liquid pump, these parts all connect with pipeline mutually.
This single and double effect absorption refrigerator is characterised in that: low heat regenerator one side at absorption tube is provided with the second lower concentration absorbing liquid pump, described absorption tube is connected to the low heat regenerator by lower concentration absorbing liquid pump and low temperature heat exchanger with absorber, the upstream side of the second lower concentration absorbing liquid pump is communicated with the upstream side that intermediate concentration absorbs the liquid pump, described absorption liquid line absorbs the liquid pump by intermediate concentration the low heat regenerator is connected to high-temp regenerator, and structure low heat regenerator is to form the dropping liquid membrane structure, in this structure, heat source fluid flows to the inside of heat pipe, and absorbs the outside that liquid drips to this pipe.
Can select, this single and double effect absorption refrigerator is characterised in that: the inside of the condenser of process low heat regenerator/condenser cylinder comprises the branch road of walking around condenser inside with the cooling fluid path that pipeline connects; Be used for strengthening the resistance intensifier of branch road flow path resistance; And the cooling fluid that is used for selecting the cooling fluid path flow in the inside of condenser or flow into flow path selecting arrangement in the branch road.
In the present invention first, second and fourth aspect, when the inside of low heat regenerator was in lower temperature, the lower concentration absorbing liquid that flows out from absorber was walked around the low heat regenerator and is flowed directly into high-temp regenerator.Therefore, can in the low heat regenerator, prevent the automatic injection of lower concentration absorbing liquid, thereby in conventional machine, prevent to take place the problem of heat loss.
In addition, the dropping liquid membrane structure is applied in the low heat regenerator to prevent that the heat pipe in the low heat regenerator from invading in the absorption liquid.When the second lower concentration absorbing liquid pump quits work, can supply warm water discharge etc. from heat pipes to the low heat regenerator such as co-generation units.Even in this case, can prevent also that such as such trouble promptly superheated and condensation absorb liquid and make its crystallization in the low heat regenerator.
In a second aspect of the present invention, when not from co-generation unit etc. when the low heat regenerator is supplied the heat source fluid of a certain temperature, can prevent that chilled water from flowing into the inside with the juxtaposed condenser of low heat regenerator.Therefore, can prevent that the internal temperature in the low heat regenerator from extremely reducing.Even the lower concentration absorbing liquid that flows out from absorber flow into the low heat regenerator, this can prevent effectively that also lower concentration absorbing liquid is ejected in the low heat regenerator automatically.Like this, in a second aspect of the present invention, also can in conventional machine, prevent the generation of heat loss problem.
In addition, almost the flow path resistance in the branch road of walking around condenser inside is provided with the cooling fluid path of the inside of the condenser that passes through low heat regenerator/condenser cylinder with the pipeline connection.Correspondingly, at the cooling fluid of the condenser of the low heat regenerator/condenser cylinder of flowing through and walk around the difference that does not have flow between its cooling fluid.Therefore, even the flow path of conversion cooling fluid, the cooling effect of the cooling fluid between evaporimeter/absorber cylinder and low-temperature regenerator/condenser cylinder not there are differences yet, and can suppress the fluctuation of refrigeration performance thus.
Description of drawings
Fig. 1 is the key diagram that the single and double effect absorption refrigerator structure of first embodiment is shown;
Fig. 2 is the key diagram that the control example of the second lower concentration absorbing liquid pump is shown;
Fig. 3 is the key diagram that another control example of the second lower concentration absorbing liquid pump is shown;
Fig. 4 is the key diagram that the single and double effect absorption refrigerator structure of second embodiment is shown; And
Fig. 5 is the key diagram that prior art is shown.
The specific embodiment
Single and double effect absorption refrigerator comprises the evaporimeter/absorber cylinder that holds evaporimeter and absorber; Low-temperature regenerator/condenser the cylinder that holds low-temperature regenerator and condenser; Hold the low heat regenerator of thermal source of use such as warm water discharge and the low heat regenerator/condenser cylinder of condenser; High-temp regenerator; Low temperature heat exchanger; High-temperature heat exchanger; Lower concentration absorbing liquid pump; And intermediate concentration absorption liquid pump, these parts all connect with pipeline mutually.In single and double effect absorption refrigerator, in low heat regenerator one side that absorbs liquid line the second lower concentration absorbing liquid pump is set, described absorption liquid line is connected to the low heat regenerator by lower concentration absorbing liquid pump and low temperature heat exchanger with absorber, the upstream side of the second lower concentration absorbing liquid pump is communicated with the upstream side that intermediate concentration absorbs the liquid pump, described absorption tube absorbs the liquid pump by intermediate concentration the low heat regenerator is connected to high-temp regenerator, and structure low heat regenerator is to form the dropping liquid membrane structure, in this structure, heat source fluid flows to the inside of heat pipe, and absorbs the outside that liquid drips to this pipe.In addition, control the operation of the second lower concentration absorbing liquid pump according to the temperature of the temperature of the thermal source that flows into the low heat regenerator or from the low heat regenerator, flow out and inflow evaporator or the salt solution that from evaporimeter, flows out and stop.In addition, control the rotating speed of the second lower concentration absorbing liquid pump according to the temperature of inflow evaporator or the salt solution that from evaporimeter, flows out.
The first embodiment of the present invention below is described with reference to the accompanying drawings, in these accompanying drawings, understands for convenience, represent to have part with part identical function shown in Figure 5 with identical reference marker.
Fig. 1 is the key diagram that first embodiment is shown.As an example single and double effect absorption refrigerator 100 comprises the evaporimeter/absorber cylinder 3 that holds evaporimeter 1 and absorber 2 in Fig. 1; Be equipped with the high-temp regenerator 5 of gas burner 4; Low-temperature regenerator 6; With low-temperature regenerator 6 juxtaposed condensers 7; Low-temperature regenerator/condenser the cylinder 8 that holds low-temperature regenerator 6 and condenser 7; The low heat regenerator 9 of the thermal source of use such as warm water discharge; With low heat regenerator 9 juxtaposed condensers 10; Low heat regenerator/condenser the cylinder 11 that holds low heat regenerator 9 and condenser 10; Low temperature heat exchanger 12; High-temperature heat exchanger 13; Cold-producing medium heat extraction gatherer 14; Salt solution (such as water) is from its Brine Pipe that flows through 26; Cooling water pipe 27; Low heat supply pipe 28; The first lower concentration absorbing liquid pump P1; The second lower concentration absorbing liquid pump P2; Intermediate concentration absorbs liquid pump P3; High concentration absorbs liquid pump P4; And refrigerated medium pump P5, connect above-mentioned parts with pipeline, as shown in the figure.Reference marker C represents to be used for the controller of single and double effect absorption refrigerator 100.
In the single and double effect absorption refrigerator 100 of first embodiment of the invention, absorber 2 is connected to low heat regenerator 9 through lower concentration absorbing liquid line 15 than the lower concentration absorbing liquid cell of lower part gas phase part will be formed on.With respect to lower concentration absorbing liquid line 15 the first lower concentration absorbing liquid pump P1 is arranged on the upstream, and the second lower concentration absorbing liquid pump P2 is arranged on the downstream.
The first lower concentration absorbing liquid pump P1 extends through the solution cooling absorber 2A that is arranged on absorber 2 tops in the waste side or the downstream of lower concentration absorbing liquid line 15.Make it be divided into lower concentration absorbing liquid line 15A and the cold-producing medium heat extraction gatherer 14 that low temperature heat exchanger 12 is arranged on therebetween then and be arranged on therebetween lower concentration absorbing liquid line 15B.After this, they are merged and are connected to entrance side or the upstream side of the second lower concentration absorbing liquid pump P2.The downstream of the second lower concentration absorbing liquid pump P2 is connected to the sprayer 9A that is positioned at low heat regenerator 9 tops.
The upstream side of the second lower concentration absorbing liquid pump P2 is connected to the upstream side that intermediate concentration absorbs the intermediate concentration absorption liquid pump P3 in the liquid line 16 through bypass duct 17.The intermediate concentration that intermediate concentration absorption liquid line 16 will be formed on low heat regenerator 9 bottoms absorbs the gas phase part that liquid cell is connected to high-temp regenerator 5.
Be connected high concentration with low temperature heat exchanger 12 usefulness pipelines through excessive concentrations absorption liquid body pump P4 and absorb liquid line 18, this high concentration absorbs the gas phase part that liquid line 18 is connected to the absorption liquid cell in the low-temperature regenerator 6 solution cooling absorber 2A.The upstream side that high concentration is absorbed liquid pump P4 is connected to the downstream of low temperature heat exchanger 12 through bypass duct 19.
,, when low-temperature regenerator 6 heating and condensation absorption liquid, described cold-producing medium discharge opeing is incorporated in the condenser 7 to the 14 supply cold-producing medium discharge opeings of cold-producing medium heat extraction gatherer by cold-producing medium delivery pipe 20.
In the low heat regenerator 9 of low heat regenerator/condenser cylinder 11, make the heat pipe 9B that is connected to low heat supply pipe 28 be in sprayer 9A below.Intermediate concentration is absorbed the bottom that liquid line 16 is connected to low heat regenerator 9.Constitute described dropping liquid membrane structure like this.
Therefore, in the drop processing procedure of the heat that utilizes the warm water discharge that for example comes free low heat supply pipe 28 supplies, the absorption liquid that heating is carried by absorber 2 by lower concentration absorbing liquid pump P1, P2, and from the absorption liquid of sprayer 9A to above-mentioned heat pipe 9B injection.Then, will be transported to high-temp regenerator 5 through intermediate concentration absorption liquid line 16 in condensation after the evaporative cooling agent respectively and the absorption liquid that converges in the bottom.
For example, drive the second lower concentration absorbing liquid pump P2 that is arranged in the lower concentration absorbing liquid line 15 by paraphase motor (not shown).According to controlling this second lower concentration absorbing liquid pump P2 by controller C at the detected warm water discharge outlet temperature T1 of temperature sensor S1 place, shown in Fig. 2 (A), wherein said temperature sensor S1 is arranged on the exit of the low heat regenerator 9 in the low heat supply pipe 28.
For example, if be lower than 70 ℃ temperature setting at the detected warm water discharge outlet temperature T1 of temperature sensor S1 place, then the second lower concentration absorbing liquid pump P2 is out of service.If described warm water discharge outlet temperature T1 rises and is higher than 75 ℃ temperature setting when out of service, then controller C controls the second lower concentration absorbing liquid pump P2 so that activate it.
Can also be shown in Fig. 2 (B) control the activation of the second lower concentration absorbing liquid pump P2 by controller C like that and stop.In this case, temperature sensor S2 is set to detect brine outlet temperature T 2 in the Brine Pipe 26 that is in evaporimeter 1 exit.If be lower than temperature in the detected brine outlet temperature T 2 in temperature sensor S2 place 2 ℃ or of SP (for example 7 ℃) are set more, then the second lower concentration absorbing liquid pump P2 is out of service.If described brine outlet temperature T 2 rises and is higher than temperature and SP is set subtracts 1.5 ℃ when out of service, then control the second lower concentration absorbing liquid pump P2 so that activate it.
Can control the second lower concentration absorbing liquid pump P2 by controller C, as shown in Figure 3.If be lower than temperature in the detected brine outlet temperature T 2 in temperature sensor S2 place 1 ℃ of SP or is set more, the frequency that then will offer the driving power of the second lower concentration absorbing liquid pump P2 reduces to minimum.If brine outlet temperature T 2 is higher than temperature 1 ℃ of SP or is set more, then makes the frequency of the driving power that offers the second lower concentration absorbing liquid pump P2 reach maximum.If temperature sensor S2 indicates medium temperature, then utilize the rotating speed of controlling the second lower concentration absorbing liquid pump P2 with the proportional frequency of temperature.
One of them detects when determining to make second lower concentration absorbing liquid pump P2 temperature out of service as temperature sensor S1, S2, and it is out of service that controller C just controls the second lower concentration absorbing liquid pump P2, and no matter the detected temperature of another one temperature sensor.
Therefore, in the single and double effect absorption refrigerator 100 of first embodiment of the invention, for example, about 80 ℃ warm water discharge always flow into the low heat regenerator 9 of low heat regenerator/condenser cylinder 11 through low heat supply pipe 28 from systems such as cogeneration of heat and power (cogeneration) systems.On the contrary, when flowing into warm water discharge in the low heat regenerator 9 and be in lower temperature through low heat supply pipe 28 under the situation that activates at co-generation unit or stop, perhaps be provided with when following when not having warm water discharge to flow into and drop to 70 ℃ temperature in the temperature of the detected warm water discharge in temperature sensor S1 place, the second lower concentration absorbing liquid pump P2 is out of service.
Therefore, when flowing out the lower concentration absorbing liquid that enters into lower concentration absorbing liquid line 15 from absorber 2, when absorbing liquid and carry out heat exchange with high concentration in the low temperature heat exchanger 12, a part of lower concentration absorbing fluid temperature raises.When heat exchange was carried out in the cold-producing medium discharge opeing in rest parts and the cold-producing medium heat extraction gatherer 14, the temperature of this remainder raise, and walked around low heat regenerator 9 and be fed directly in the high-temp regenerator 5.Correspondingly, in low heat regenerator 9, do not take place to spray automatically.This has prevented the heat loss that caused such as in single and double effect absorption refrigerator 100X as shown in Figure 5 effectively.In addition, the excessive temperature that prevents the warm water discharge that circulates through low heat supply pipe 28 in systems such as co-generation unit descends.
In addition, the heat pipe 9B in the low heat regenerator 9 does not structurally invade and absorbs in the liquid.When the second lower concentration absorbing liquid pump P2 is out of service, can be from systems such as co-generation units through low heat supply pipe 28 to heat pipe 9B supply as the warm water discharge of thermal source etc.Even in this case,, also can prevent the crystallization of disadvantageous absorption liquid when when 9 pairs of absorptions of low heat regenerator liquid heats with condensation.
In the single and double effect absorption refrigerator 100 of first embodiment of the invention,, control the rotating speed of the second lower concentration absorbing liquid pump P2 by controller C according in the detected brine outlet temperature T 2 in temperature sensor S2 place.Like this, can provide stable heating and cooling.
In the single and double effect absorption refrigerator 100 of first embodiment of the invention, utilize the activation of the second lower concentration absorbing liquid pump P2 and stop to control so that select whether be transported to low heat regenerator 9 from the lower concentration absorbing liquid of absorber 2.Correspondingly, second lower concentration absorbing liquid pump P2 and the bypass duct 17 must be set.On the contrary, can omit bypass duct 28A in the low heat supply pipe 28 that is arranged among the conventional single and double effect absorption refrigerator 100X and expensive triple valve 28B to reduce cost.
The single and double effect absorption refrigerator 100 of structure first embodiment of the invention makes its combustion gas that allows to be produced by gas burner 4 through 23,24 dischargings of first and second waste heat collector.First waste heat collector 23 is utilized the intermediate concentration that flow in the high-temp regenerator 5 to absorb liquid and is collected the used heat that is stored in the combustion gas.Second waste heat collector 24 is utilized and is supplied to the combustion air of gas burner 4 to collect the used heat that is stored in the combustion gas.Further this single and double effect absorption refrigerator 100 of structure, the intermediate concentration that making raises flow in the high-temp regenerator 5 absorbs the temperature of the temperature of liquid and the combustion air that is supplied to gas burner 4 to be suppressed at the consumption of burnt fuel in the gas burner 4.
With reference to the figure 4 explanation second embodiment of the present invention.
The single and double effect absorption refrigerator 100A of second embodiment of the invention is presented among Fig. 4.Omitted second lower concentration absorbing liquid pump P2 and the bypass duct 17 in the single and double effect absorption refrigerator 100 that is arranged on first embodiment of the invention, bypass duct 27A and triple valve 27B have been set in cooling water pipe 27 and change into.The cooling water that flows into cooling water pipe 27 can flow into low heat regenerator/condenser 11 in low heat regenerator 9 juxtaposed condensers 10 in, perhaps walk around condenser 10.
Therefore, in the single and double effect absorption refrigerator 100A of second embodiment of the invention, when the warm water discharge that does not have a certain temperature flow in the low heat regenerator 9, the work of triple valve 27B also allowed cooling water to walk around condenser 10.Therefore, with condenser 10 juxtaposed low heat regenerators 9 in temperature cannot reduce widely.Lower concentration absorbing liquid can temperature rise and flow into the low heat regenerator 9 flow out to lower concentration absorbing liquid line 15 from absorber 2 after, carries out heat exchange then in low temperature heat exchanger 12 and cold-producing medium heat extraction gatherer 14.Even in this case, also can prevent the automatic injection of lower concentration absorbing liquid in low heat regenerator 9, prevent the heat loss that is caused such as in conventional single and double effect absorption refrigerator 100X.
In addition, bypass duct 27A is provided with opening 27C so that the flow path resistance of bypass duct 27A almost equates with the resistance of the flow path that extends through condenser 10.Correspondingly, when cooling water flow during through condenser 10 and when it flows through bypass duct 27A, on flow, not there are differences.Therefore, even the flow path of conversion cooling water, the cooling effect of cooling water can not produce change yet in evaporimeter/absorber cylinder 3 and low-temperature regenerator/condenser cylinder 8, and can obtain stable refrigeration performance.
The invention is not restricted to the foregoing description, but under the situation of the scope and spirit that do not break away from additional claims, can carry out various modifications and enforcement.
For example, always do not need to be arranged on solution cooling absorber 2A in the absorber 2.Thereby can construct cooling water pipe 27 so as to make cooling water branch inflow absorber 2 and condenser 6,10 in.
In possible the setting, temperature sensor S1 can be arranged in the low heat supply pipe 28 of porch of low heat regenerator 9.Utilize temperature sensor S1 to detect the temperature that flow into the warm water discharge in the low heat regenerator 9 through low heat supply pipe 28.Controller C controls the activation of the second lower concentration absorbing liquid pump P2 according to detected temperature and stops.
In possible being provided with of another kind, temperature sensor S2 can be arranged in the Brine Pipe 26 of porch of evaporimeter 1.Utilize temperature sensor S2 to detect the temperature that flow into the salt solution in the evaporimeter 1.Controller C according to detected temperature control the activation of the second lower concentration absorbing liquid pump P2/stop with and rotating speed.
Claims (4)
1, a kind of single and double effect absorption refrigerator comprises the evaporimeter/absorber cylinder that holds evaporimeter and absorber; Low-temperature regenerator/condenser the cylinder that holds low-temperature regenerator and condenser; Hold the low heat regenerator of thermal source of use such as warm water discharge and the low heat regenerator/condenser cylinder of condenser; High-temp regenerator; Low temperature heat exchanger; High-temperature heat exchanger; Lower concentration absorbing liquid pump; And intermediate concentration absorption liquid pump, these parts all connect with pipeline mutually.
Described single and double effect absorption refrigerator is characterised in that: in described low heat regenerator one side that described absorber is connected to an absorption tube of described low heat regenerator by described lower concentration absorbing liquid pump and described low temperature heat exchanger, the second lower concentration absorbing liquid pump is set, wherein described low heat regenerator is being connected in the absorption liquid line of described high-temp regenerator by described intermediate concentration absorption liquid pump, the upstream side of the described second lower concentration absorbing liquid pump is communicated with the upstream side that described intermediate concentration absorbs the liquid pump, and construct described low heat regenerator to form the dropping liquid membrane structure, in this structure, heat source fluid flows to the inside of heat pipe, and absorbs the outside that liquid drips to this pipe.
2, a kind of single and double effect absorption refrigerator comprises the evaporimeter/absorber cylinder that holds evaporimeter and absorber; Low-temperature regenerator/condenser the cylinder that holds low-temperature regenerator and condenser; Hold the low heat regenerator of thermal source of use such as warm water discharge and the low heat regenerator/condenser cylinder of condenser; High-temp regenerator; Low temperature heat exchanger; High-temperature heat exchanger; Lower concentration absorbing liquid pump; And intermediate concentration absorption liquid pump, these parts all connect with pipeline mutually.
Described single and double effect absorption refrigerator is characterised in that: the inside of the described condenser of process described low heat regenerator/condenser cylinder comprises the branch road of walking around described condenser inside with the cooling fluid path that pipeline connects; Be used for strengthening the resistance intensifier of the flow path resistance of described branch road; And the cooling fluid that is used for selecting described cooling fluid path flow in the inside of described condenser or flow into flow path selecting arrangement in the described branch road.
3, a kind of method of controlling operation thereof of single and double effect absorption refrigerator according to claim 1, wherein according to the temperature of the thermal source that flows into described low heat regenerator or from described low heat regenerator, flow out and flow into described evaporimeter or the temperature of the salt solution that from described evaporimeter, flows out, control the operation of the described second lower concentration absorbing liquid pump and stop.
4, a kind of method of controlling operation thereof of single and double effect absorption refrigerator according to claim 1 is wherein controlled the rotating speed of the described second lower concentration absorbing liquid pump according to the temperature of the salt solution that flows into described evaporimeter or flow out from described evaporimeter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004250626A JP4390267B2 (en) | 2004-08-30 | 2004-08-30 | Single double effect absorption refrigerator and operation control method thereof |
| JP250626/2004 | 2004-08-30 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100822922A Division CN101231043B (en) | 2004-08-30 | 2005-08-30 | Single and double effect absorption refrigerator and operation control method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743764A true CN1743764A (en) | 2006-03-08 |
| CN100529591C CN100529591C (en) | 2009-08-19 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100994569A Expired - Fee Related CN100529591C (en) | 2004-08-30 | 2005-08-30 | Single double effect absorbing type refrigerator and operation method thereof |
| CN2008100822922A Expired - Fee Related CN101231043B (en) | 2004-08-30 | 2005-08-30 | Single and double effect absorption refrigerator and operation control method therefor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100822922A Expired - Fee Related CN101231043B (en) | 2004-08-30 | 2005-08-30 | Single and double effect absorption refrigerator and operation control method therefor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4390267B2 (en) |
| KR (1) | KR101137582B1 (en) |
| CN (2) | CN100529591C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619907B (en) * | 2009-07-24 | 2011-04-13 | 大连三洋制冷有限公司 | High-efficiency vapor double effect lithium bromide absorption type refrigerating unit |
| CN102200357A (en) * | 2010-03-26 | 2011-09-28 | 三洋电机株式会社 | Absorption refrigerator |
| CN104567091A (en) * | 2013-10-25 | 2015-04-29 | 矢崎能源***公司 | Hot water heating absorption refrigerator |
| CN108375238A (en) * | 2017-01-31 | 2018-08-07 | 荏原冷热***株式会社 | Absorption refrigerator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5210896B2 (en) * | 2009-01-19 | 2013-06-12 | 三洋電機株式会社 | Single double-effect absorption chiller / heater |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3363518B2 (en) * | 1993-06-01 | 2003-01-08 | 三洋電機株式会社 | Operation control method of single double effect absorption refrigerator |
| JP3278342B2 (en) * | 1996-02-20 | 2002-04-30 | 東京瓦斯株式会社 | Low temperature regenerator of absorption chiller / heater |
| CN1211710A (en) * | 1997-09-12 | 1999-03-24 | 华中理工大学 | Absorption type refrigerating circulation |
| JPH11108486A (en) * | 1997-10-02 | 1999-04-23 | Ebara Corp | Double effect absorption water cooler/heater |
-
2004
- 2004-08-30 JP JP2004250626A patent/JP4390267B2/en not_active Expired - Fee Related
-
2005
- 2005-08-29 KR KR1020050079521A patent/KR101137582B1/en not_active IP Right Cessation
- 2005-08-30 CN CNB2005100994569A patent/CN100529591C/en not_active Expired - Fee Related
- 2005-08-30 CN CN2008100822922A patent/CN101231043B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619907B (en) * | 2009-07-24 | 2011-04-13 | 大连三洋制冷有限公司 | High-efficiency vapor double effect lithium bromide absorption type refrigerating unit |
| CN102200357A (en) * | 2010-03-26 | 2011-09-28 | 三洋电机株式会社 | Absorption refrigerator |
| CN102200357B (en) * | 2010-03-26 | 2013-07-17 | 三洋电机株式会社 | Absorption refrigerator |
| CN104567091A (en) * | 2013-10-25 | 2015-04-29 | 矢崎能源***公司 | Hot water heating absorption refrigerator |
| CN104567091B (en) * | 2013-10-25 | 2017-03-01 | 矢崎能源***公司 | hot water heating absorption refrigerator |
| CN108375238A (en) * | 2017-01-31 | 2018-08-07 | 荏原冷热***株式会社 | Absorption refrigerator |
| CN108375238B (en) * | 2017-01-31 | 2021-06-15 | 荏原冷热***株式会社 | Absorption refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101231043B (en) | 2010-12-22 |
| KR101137582B1 (en) | 2012-04-19 |
| JP2006064346A (en) | 2006-03-09 |
| CN100529591C (en) | 2009-08-19 |
| JP4390267B2 (en) | 2009-12-24 |
| CN101231043A (en) | 2008-07-30 |
| KR20060050771A (en) | 2006-05-19 |
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