CN208296358U

CN208296358U - Absorption Refrigerator

Info

Publication number: CN208296358U
Application number: CN201820141562.1U
Authority: CN
Inventors: 竹村与四郎; 青山淳; 平田甲介
Original assignee: Ebara Refrigeration Equipment and Systems Co Ltd
Current assignee: Ebara Refrigeration Equipment and Systems Co Ltd
Priority date: 2017-01-31
Filing date: 2018-01-26
Publication date: 2018-12-28
Anticipated expiration: 2028-01-26
Also published as: JP6805473B2; JP2018124049A

Abstract

The relatively low heat source fluid importing of temperature is worked and structure is simple by Absorption Refrigerator provided by the utility model.Absorption Refrigerator (1) has: the first evaporator (E1), cools down to cooling subject fluid (W)；First absorber (A1)；The first absorbing liquid flow path (15) for the first absorbing liquid (Sw1) flowing that concentration reduces in the first absorber (A1) is arranged inside it and is heated using absorption heat to the first absorbing liquid (Sw1) flowed in the first absorbing liquid flow path (15) for second absorber (A2)；Second evaporator (E2)；Gas-liquid separation portion (90), the refrigerant (Vs) being detached from from the first absorbing liquid (Sw1) that will be generated due to the first absorbing liquid (Sw1) is heated in the second absorber (A2) are separated with the first absorbing liquid (Sa1) after refrigerant (Vs) is detached from and concentration rises；First concentrated solution flow path (91), by the first absorbing liquid (Sa1) guidance after the concentration that gas-liquid separation portion (90) generate rises to the first absorber.

Description

Absorption Refrigerator

Technical field

The utility model relates to Absorption Refrigerators, carry out work simultaneously more particularly to the relatively low heat source fluid of temperature is imported And the simple Absorption Refrigerator of structure.

Background technique

The Absorption Refrigerator of cold water is cooled down in the presence of the absorption refrigeration cycle by absorbing liquid and refrigerant.Absorption system There is the hot water heating type Absorption Refrigerator for carrying out work using the discharge hot water of the cooling water of generator etc. as heat source in cold.? In hot water heating type Absorption Refrigerator, the temperature of the hot water as heat source is higher, and the recycling heat from hot water more increases, because This facilitates energy conservation.On the other hand, the influence of the temperature of hot water by the characteristic in discharge source is discharged, throws discharge hot water if existing Enter into hot water heating type Absorption Refrigerator, then the lower situation of the temperature of hot water is discharged.Consider that such situation exists such as Lower scheme: second of the absorption heat pump and absorption refrigeration that the temperature heated medium higher than heat source temperature is taken out in setting Machine generates the temperature heat higher than discharge hot water using the absorber of second of absorption heat pump using discharge hot water as heat source Water, and come as the heat source of Absorption Refrigerator using (referring for example to patent document 1).

Patent document 1: Japanese Unexamined Patent Application 59-89962 bulletin

However, device described in Patent Document 1 connects second of absorption heat pump and Absorption Refrigerator with piping respectively Knot, therefore become large-scale.

Utility model content

The utility model carrys out work simultaneously, and it is an object of the present invention to provide the relatively low heat source fluid of temperature is imported in view of the above subject And the simple Absorption Refrigerator of structure.

To achieve the goals above, the Absorption Refrigerator of the first method of the utility model, such as shown in Figure 1, tool Standby: the first evaporator E1 becomes refrigerant vapour and the liquid Vf for capturing refrigerant from cooling subject fluid W evaporates Required evaporation latent heat when Ve1, to cool down cooling subject fluid W；First absorber A1, by what is generated in the first evaporator E1 Refrigerant vapour Ve1 is imported, and absorbs the first absorbing liquid Sa1；Second absorber A2 is provided with inside it for inhaling first Receive the first absorbing liquid flow path of the first absorbing liquid Sw1 flowing after concentration reduces due to absorbing refrigerant vapour Ve1 in device A1 15, and the absorption heat that while absorbing the steam Ve2 of refrigerant using the second absorbing liquid Sa2 releases, in the first absorbing liquid The first absorbing liquid Sw1 that flow path 15 flows is heated；Second evaporator E2 is imported directly or indirectly to for generating to the The heat source fluid H that the liquid Vf of the refrigerant of the steam Ve2 of the refrigerant of two absorber A2 supply is heated, and utilize importing The heat source fluid H heat possessed heat the liquid Vf of refrigerant, and generate the steam Ve2 of refrigerant；Gas-liquid separation portion 90, the refrigeration being detached from from the first absorbing liquid Sw1 that will be generated due to the first absorbing liquid Sw1 is heated in the second absorber A2 Agent Vs, it is separated with the first absorbing liquid Sa1 after refrigerant Vs is detached from and concentration rises；And the first concentrated solution flow path 91, it will The first absorbing liquid Sa1 after the concentration that gas-liquid separation portion 90 generates rises is guided to the first absorber A1.

, can be by absorption heat heating the first absorbing liquid of regeneration generated in the second absorber if constituting in this way, it can It imports the relatively low heat source fluid of temperature and carrys out work, and structure is simple.

In addition, the Absorption Refrigerator of the second method of the utility model, such as shown in figure 3, it is practical new at above-mentioned On the basis of the Absorption Refrigerator 1A of the first method of type, have: regenerator G2, it will be because being absorbed in the second absorber A2 The steam Ve2 of refrigerant and the second absorbing liquid Sw2 after concentration reduces is imported, and the heat possessed using heat source fluid H The second absorbing liquid Sw2 of importing is heated, refrigerant Vg is detached from from the second absorbing liquid Sw2, makes the second absorbing liquid Sw2's Concentration rises；And common condenser Cs, by regenerator G2 from the steam Vg of the second absorbing liquid Sw2 refrigerant being detached from It is imported with the steam Vs of the refrigerant generated in gas-liquid separation portion 90, and makes steam Vg, Vs condensation of the refrigerant imported and give birth to At refrigerant liquid Vf.

If constituting in this way, the refrigerant being detached from from the first absorbing liquid and the refrigerant from the disengaging of the second absorbing liquid can be made Condensation is concentrated, therefore can be realized being further simplified for structure.

In addition, the Absorption Refrigerator of the Third Way of the utility model, such as such as Fig. 5 a, Fig. 5 b to Fig. 7 a, Fig. 7 b institute Show, on the basis of the Absorption Refrigerator of the first method of above-mentioned the utility model or second method, the second absorber A2a tool There is the heating tube 15 of more the first absorbing liquid flow paths of composition, the second absorber A2a has reversion liquid chamber 54, the reversion liquid chamber 54 by the first absorbing liquid Sw1 of the inside for flowing through heating tube 15 so that it is flowed round about in the inside of other heating tubes 15 Mode to other heating tubes 15 guide, multiple heating tubes 15 by reversion liquid chamber 54 and be configured to multiple accesses, multiple accesses Being respectively structured as flow path cross sectional area is same degree.

If constituting in this way, in the downstream side for more tending to flowing, the ratio of the steam for the refrigerant being detached from from the first absorbing liquid When example more increases, more tend to the downstream side of flowing, the flow velocity of the first absorbing liquid more increases, and flows into the first absorbing liquid of each heating tube Flow close to uniformly, so as to inhibit the flowing in heating tube it is uneven equal caused by heat transfer efficiency reduction, and And it is able to suppress the concentration and the local raised situation of temperature of the first absorbing liquid, to avoid the crystallization of the first absorbing liquid.

In addition, the Absorption Refrigerator of the fourth way of the utility model, above-mentioned the utility model first method or On the basis of the Absorption Refrigerator of second method, the second absorber has adding for 1 or more the first absorbing liquid flow path of composition Heat pipe, second absorber have: entrance liquid chamber is connected to 1 or more heating tubes, and is supplied to the heating tube of connection First absorbing liquid；And outlet liquid chamber, it is connected to 1 or more heating tubes, it is complete to heating tube being supplied from entrance liquid chamber The first absorbing liquid of portion is collected after flowing through heating tube.

It, can be from entrance liquid chamber to the first absorbing liquid of heating tube supply liquid condition, to inhibit if constituting in this way Flowing in heating tube it is uneven it is equal caused by heat transfer efficiency reduction, and be able to suppress the concentration of the first absorbing liquid with And the local raised situation of temperature, to avoid the crystallization of the first absorbing liquid.

In addition, the Absorption Refrigerator of the 5th mode of the utility model, such as shown in figure 9, it is practical new at above-mentioned On the basis of the first method of type to the Absorption Refrigerator 1 of either fourth way formula, have the first absorbing liquid pump 99, it should The the first absorbing liquid Sw1 for being directed into the second absorber A2 is pressed into the first absorbing liquid flow path 15 by the first absorbing liquid pump 99.

If constituting in this way, it is capable of increasing the flow of the first absorbing liquid in the first absorbing liquid flow path, is able to suppress Flow in first absorbing liquid flow path it is uneven it is equal caused by the first absorbing liquid concentration and the local raised situation of temperature, from And can be avoided the crystallization of the first absorbing liquid, improve heat transfer efficiency.

In addition, the Absorption Refrigerator of the 6th mode of the utility model, for example, as shown in figure 4, practical new at above-mentioned On the basis of the first method of type to the Absorption Refrigerator 1B of either the 5th mode formula, by making the first absorbing liquid Sw1 The outlet of entrance and the first absorbing liquid flow path 15 be configured adjacently, so that gas-liquid separation portion 90 and the second absorber A2 are configured to one Body.

If constituting in this way, it is able to suppress the enlargement of device.

In addition, the Absorption Refrigerator of the 7th mode of the utility model, for example, as Fig. 5 a, Fig. 5 b to Fig. 7 a, Fig. 7 b (with And Fig. 6 a, Fig. 6 b) shown in, on the basis of the Absorption Refrigerator of the 6th mode of above-mentioned the utility model, have oral fluid out Room 55 (55B) includes liquid phase portion 55q, which is arranged along the tank body 57 of the second absorber A2a (A2b), convection current The the first absorbing liquid Sa1 for crossing the first absorbing liquid flow path 15 is temporarily stored；Gas phase portion 55g, the gas phase portion 55g supply to inhale from first It receives the refrigerant vapour Vs that liquid Sw1 is detached to pass through, outlet liquid chamber 55 (55B) is constituted are as follows: in gas phase portion, 55g is provided with separator 96 It (96B) and is functioned as gas-liquid separation portion.

If constituting in this way, the gas of the first absorbing liquid can be separated with liquid in outlet liquid chamber.

In addition, the Absorption Refrigerator of the eighth mode of the utility model, such as shown in Fig. 7 a, Fig. 7 b, at above-mentioned On the basis of the Absorption Refrigerator of 6th mode of utility model, has outlet liquid chamber 55C, include liquid phase portion 55q, it should Liquid phase portion 55q is arranged along the tank body 57 of the second absorber A2c, to the first absorbing liquid Sa1 for flowing through the first absorbing liquid flow path 15 Temporarily stored；And gas phase portion 55g, the gas phase portion 55g supply the refrigerant vapour Vs being detached from from the first absorbing liquid Sw1 logical It crosses, outlet liquid chamber 55C is constituted are as follows: gas phase portion 55g is set by being constituted in a manner of horizontal-extending in the space of gas phase portion 55g Be equipped with multiple flow path limiting components 98, the flow path limiting component 98 so that gas phase portion 55g flowing refrigerant vapour Vs to the left The sinuous mode limiting flowing path in the right side, outlet liquid chamber 55C are functioned as gas-liquid separation portion.

If constituting in this way, liquid chamber can will be exported as gas-liquid separation portion using easy structure and functioned.

In addition, the Absorption Refrigerator of the 9th mode of the utility model, such as shown in figure 8, it is practical new at above-mentioned On the basis of the first method of type to the Absorption Refrigerator 1C of either eighth mode formula, have: the second high-temperature evaporator E2H generates the steam to the second absorber A2H refrigerant V supplied；And the second low temperature absorption device A2L, using from the The second absorbing liquid S2 that two absorber A2H are directly or indirectly imported absorbs the absorption heat released when the steam of refrigerant V, to the The refrigerant Vf of two high-temperature evaporator E2H is heated.

If constituting in this way, the heat source fluid of lower temperature can be utilized, as the heat source stream imported by the second evaporator Body.

According to the utility model, the absorption heat generated in the second absorber can be utilized to regenerate the first absorbing liquid to heat, And the relatively low heat source fluid of temperature can be imported and carry out work and become simple structure.

Detailed description of the invention

Fig. 1 is the system diagram of the signal of the Absorption Refrigerator of the embodiments of the present invention.

Fig. 2 is the Dühring's diagram in the Absorption Refrigerator of the embodiments of the present invention.

Fig. 3 is the system diagram of the signal of the Absorption Refrigerator of the first variation of the embodiments of the present invention.

Fig. 4 is the system diagram of the signal of the Absorption Refrigerator of second variation of the embodiments of the present invention.

Fig. 5 a, Fig. 5 b are the second suctions that the Absorption Refrigerator of second variation of the embodiments of the present invention has Receive the cross-sectional view of the first variation of device.

Fig. 6 a, Fig. 6 b are the second suctions that the Absorption Refrigerator of second variation of the embodiments of the present invention has Receive the cross-sectional view of the second variation of device.

Fig. 7 a, Fig. 7 b are the second suctions that the Absorption Refrigerator of second variation of the embodiments of the present invention has Receive the cross-sectional view of the third variation of device.

Fig. 8 is the system diagram of the signal of the Absorption Refrigerator of the third variation of the embodiments of the present invention.

Fig. 9 is the office for indicating the structure when the Absorption Refrigerator of the embodiments of the present invention is provided with circulating pump Portion's system diagram.

Description of symbols: 1,1A, 1B, 1C ... Absorption Refrigerator；15 ... heating tubes；55 ... outlet liquid chambers；55g ... gas Phase portion；55q ... liquid phase portion；57 ... second absorber tank bodies；90 ... gas-liquid separators；91 ... first concentrated solution pipes；96,96B… Separator；98 ... gas phase portion partitions；99 ... circulating pumps；The first absorber of A1 ...；The second absorber of A2, A2a, A2b, A2c ...； A2L ... the second low temperature absorption device；The common condenser of Cs ...；The first evaporator of E1 ...；The second evaporator of E2 ...；E2H ... second is high Warm evaporator；G2 ... Second reactivator；H ... heat source fluid；The first concentrated solution of Sa1 ...；The second concentrated solution of Sa2 ...；Sw1 ... first Weak solution；The second weak solution of Sw2 ...；Vf ... refrigerant liquid；Ve1 ... the first evaporator refrigerant steam；The second evaporator of Ve2 ... Refrigerant vapour；Vg ... regenerator refrigerant vapour；Vs ... separates refrigerant vapour；W ... cold water

Specific embodiment

Hereinafter, being illustrated referring to attached drawing to the embodiments of the present invention.In addition to same to each other in each figure or Comparable component marks same or similar appended drawing reference, and the repetitive description thereof will be omitted.

Firstly, illustrating the Absorption Refrigerator 1 of the embodiments of the present invention referring to Fig.1.Fig. 1 is Absorption Refrigerator The system diagram of 1 signal.Absorption Refrigerator 1 has the first absorber A1, the first evaporator E1, the first condenser C1, second Absorber A2, the second evaporator E2, Second reactivator G2, the second condenser C2 and gas-liquid separator 90 are used as capital equipment. In addition, Absorption Refrigerator 1 does not have the independent structure of the first regenerator.Absorption Refrigerator 1 be make refrigerant relative to Absorbing liquid on one side carry out phase transformation, while make refrigerant circulation, thus carry out that heat is mobile, and make as the cold of cooling subject fluid The equipment that the temperature of water W reduces.In the following description, in order to be easy to distinguish on absorption cycle, about absorbing liquid according to property Position on shape, absorption cycle, and it is known as " the first weak solution Sw1 ", " the second concentrated solution Sa2 " etc., but when being related to character etc., It is referred to as " absorbing liquid S ".In addition, in order to be easy to distinguish on absorption cycle, about refrigerant according on character, absorption cycle Position, referred to as " the first evaporator refrigerant steam Ve1 ", " regenerator refrigerant vapour Vg ", " refrigerant liquid Vf " etc., but not Whens being related to character etc., " refrigerant V " is referred to as.In the present embodiment, use LiBr aqueous solution as absorbing liquid S (absorbent With the mixture of refrigerant), use water (H₂O it) is used as refrigerant V, but not limited to this, can also be with other refrigerants, suction The combination of liquid (absorbent) is received to use.

First absorber A1 is to absorb the first evaporator refrigeration generated in the first evaporator E1 using the first concentrated solution Sa1 The equipment of agent steam Ve1, is equivalent to the first absorber.First absorber A1 includes confession in the inside of the first absorber tank body 17 The first concentrated solution that the cooling tube 11 of cooling water Y flowing and the outer surface towards cooling tube 11 spread the first concentrated solution Sa1 is spread Nozzle 12.First concentrated solution spreading nozzle 12 is disposed in the top of cooling tube 11 so that spread the first concentrated solution Sa1 drop down onto it is cold But pipe 11.First absorber A1 is constituted are as follows: will absorb the first evaporator refrigerant steam Ve1 because of the first concentrated solution Sa1 of distribution And the first weak solution Sw1 after concentration reduces is stored in the lower part of the first absorber tank body 17, and to capture first dense by cooling water Y Solution S a1 absorbs the absorption heat generated when the first evaporator refrigerant steam Ve1.In the lower part (generation of the first absorber tank body 17 Table is bottom) it is connected with one end of the first weak solution Sw1 the first weak solution pipe 18 guided to the second absorber A2.? First weak solution pipe 18, which is equipped, pumps 19 for the first weak solution of the first weak solution of pressurized delivered Sw1.

First evaporator E1 is that refrigerant liquid Vf is made to evaporate and generate the first evaporator refrigerant and steam using the heat of cold water W Gas Ve1, the equipment for thus cooling down cold water W, is equivalent to the first evaporator.First evaporator E1 is in the first evaporator tank body 27 Portion includes the refrigerant liquid for spreading refrigerant liquid Vf for the evaporation tube 21 of cold water W flowing and the outer surface towards evaporation tube 21 and dissipates Cloth nozzle 22.Refrigerant liquid spreading nozzle 22 is disposed in the top of evaporation tube 21, so that the refrigerant liquid Vf spread drops down onto evaporation Pipe 21.First evaporator E1 includes refrigerant liquid pipe 28, will be stored in the refrigerant liquid Vf of 27 lower part of the first evaporator tank body It is guided to refrigerant liquid spreading nozzle 22；And first refrigerated medium pump 29, by the refrigerant liquid Vf in refrigerant liquid pipe 28 to Refrigerant liquid spreading nozzle 22 conveys.First evaporator E1 is constituted are as follows: is captured from the cold water W flowed in evaporation tube 21 for making The refrigerant liquid Vf for being disseminated to 21 outer surface of evaporation tube evaporates and becomes the heat of gasification of the first evaporator refrigerant steam Ve1, comes Unevaporated refrigerant liquid Vf is stored in the lower part of evaporator tank body 27 in cooling cold water W, the refrigerant liquid Vf of distribution.

In the present embodiment, the first absorber A1 and the first evaporator E1 is configured adjacently, and the first absorber tank body 17 top is connected to the top of the first evaporator tank body 27.It through this structure, can will be in the first evaporator tank body 27 Inside generate the first evaporator refrigerant steam Ve1 to the inside of the first absorber tank body 17 guide.

First condenser C1 is to import separation refrigerant vapour Vs from gas-liquid separator 90 and carry out cooling to make its condensation, from And generate the equipment to the first evaporator E1 refrigerant liquid Vf conveyed.First condenser C1 is in the first condenser tank body 47 Portion has the condenser pipe 41 for the flow path for forming cooling water Y.Condenser pipe 41 is preferably cold with being set as not being dipped in separation refrigerant vapour Vs Refrigerant liquid Vf after solidifying, so as to directly be cooled down to separation refrigerant vapour Vs.It is connected in one end of condenser pipe 41 There is the other end of cooling water liaison tube 34, one end of the cooling water liaison tube 34 is connect with cooling tube 11.Condenser pipe 41 it is another The other end of end and cooling tube 11 is connected to the piping connecting with the cooling tower (not shown) outside Absorption Refrigerator 1.Pass through Such structure and constitute are as follows: from condenser pipe 41 flow out cooling water Y in cooling tower (not shown) be cooled and supply to cold But pipe 11.The refrigerant liquid pipe for guiding condensed refrigerant liquid Vf to the first evaporator E1 is connected in the first condenser C1 48.One end of refrigerant liquid pipe 48 and the part for being stored with refrigerant liquid Vf of 47 lower part of the first condenser tank body are (representative It is bottom) it connects, the other end of refrigerant liquid pipe 48 is connect with the first evaporator tank body 27.

Second absorber A2 is to absorb the second evaporator refrigeration generated in the second evaporator E2 using the second concentrated solution Sa2 The equipment of agent steam Ve2, is equivalent to the second absorber.Second absorber A2 is included in the inside of the second absorber tank body 57 to be added Heat pipe 15 and towards heating tube 15 outer surface spread the second concentrated solution Sa2 the second concentrated solution spreading nozzle 52.Heating tube 15 It is the pipe for constituting the flow path for the first weak solution Sw1 flowing generated in the first absorber A1, is equivalent to the first absorbing liquid flow path. Second concentrated solution spreading nozzle 52 is disposed in the top of heating tube 15, so that the second concentrated solution Sa2 spread drops down onto heating tube 15. Second absorber A2 is constituted are as follows: by concentration drops due to the second concentrated solution Sa2 of distribution the second evaporator refrigerant steam Ve2 of absorption The second weak solution Sw2 after low is stored in the lower part of the second absorber tank body 57, and absorbs the using in the second concentrated solution Sa2 The absorption heat generated when two evaporator refrigerant steam Ve2, heats the first weak solution Sw1 in the internal flow of heating tube 15. It is connected in the lower part (representative is bottom) of the second absorber tank body 57 and draws the second weak solution Sw2 to Second reactivator G2 The one end for the second weak solution pipe 58 led.

Second evaporator E2 is the equipment generated to the second absorber A2 the second evaporator refrigerant steam Ve2 supplied, It is equivalent to the second evaporator.Second evaporator E2 has the flow path for constituting heat source fluid H in the inside of the second evaporator tank body 67 Heat source tube 61.Second evaporator E2 does not have the nozzle for spreading refrigerant liquid Vf in the inside of the second evaporator tank body 67.Cause This heat source tube 61 is stored in the refrigerant liquid Vf in the second evaporator tank body 67 (flooded evaporator) with immersion is set as.Second Evaporator E2 is constituted are as follows: the refrigerant liquid Vf on 61 periphery of heat source tube utilizes the heat of the heat source fluid H flowed in heat source tube 22 And it evaporates and generates the second evaporator refrigerant steam Ve2.Oriented second evaporator tank body is connected in the second evaporator tank body 67 The refrigerant liquid pipe 88 of supply refrigerant liquid Vf in 67.

In the present embodiment, the second absorber A2 and the second evaporator E2 is configured adjacently, the second absorber tank body 57 Top is connected to the top of the second evaporator tank body 67.It through this structure, can will be in the second evaporator tank body 67 The second evaporator refrigerant steam Ve2 that portion generates is guided to the inside of the second absorber tank body 57.

Second reactivator G2 is that the second weak solution Sw2 generated in the second absorber A2 is heated and is concentrated, and makes its regeneration For the equipment of the second concentrated solution Sa2, it is equivalent to regenerator.Second reactivator G2 is included in the inside of Second reactivator tank body 77 It constitutes the heat source tube 71 of the flow path of heat source fluid H and spreads the second weak solution spreading nozzle 72 of the second weak solution Sw2.? Two weak solution spreading nozzles 72 are connected with the other end of the second weak solution pipe 58.In the present embodiment, in Second reactivator G2 Heat source tube 71 flow heat source fluid H with the second evaporator E2 heat source tube 61 flow heat source fluid H it is identical, pass through heat Source stream body liaison tube 37 connects, so that heat source fluid H flows after flowing through heat source tube 61 in heat source tube 71.It can also be in each heat Stream has different heat source mediums in source capsule 61,71.Second weak solution spreading nozzle 72 is disposed in the top of heat source tube 71, so as to dissipate Second weak solution Sw2 of cloth drops down onto heat source tube 71.Second reactivator G2 heats the second weak solution of distribution using heat source fluid H Sw2 thus generates the second concentrated solution Sa2 after refrigerant V rises from concentration due to evaporation in the second weak solution Sw2.Second again Raw device G2 is constituted are as follows: the second concentrated solution Sa2 of generation is stored in lower part.It is connected in Second reactivator G2 dense by the second of generation The second concentrated solution pipe 78 that solution S a2 is guided to the second absorber A2.One end of second concentrated solution pipe 78 and Second reactivator tank 77 lower part of body be stored with the second concentrated solution Sa2 part (representative is bottom) connection, the second concentrated solution pipe 78 it is another End is connect with the second concentrated solution spreading nozzle 52.It is equipped in the second concentrated solution pipe 78 for the second concentrated solution of pressurized delivered Sa2 The second concentrated solution pump 79.

Second condenser C2 has the cooling water pipe for the flow path for forming cooling water Y in the inside of the second condenser tank body 87 81.Second condenser C2 is constituted are as follows: imports the steam that is, regenerator refrigerant of the refrigerant V generated in Second reactivator G2 Steam Vg, and carry out cooling with cooling water Y so that it is condensed.Cooling water pipe 81 is preferred to be arranged are as follows: does not immerse regenerator refrigerant The condensed refrigerant liquid Vf of steam Vg, so as to directly cooling regenerator refrigerant vapour Vg.In the present embodiment, exist The cooling water Y that the cooling water pipe 81 of second condenser C2 flows is constituted are as follows: in the cooling tube 11 of the first absorber A1 and the The cooling water Y that the condenser pipe 41 of one condenser C1 flows is identical, and flows in parallel relative to cooling tube 11 and condenser pipe 41 It is dynamic.The refrigerant liquid pipe 88 for guiding condensed refrigerant liquid Vf to the second evaporator E2 is connected in the second condenser C2. (representative is bottom for the part of the storing refrigerant liquid Vf of one end of refrigerant liquid pipe 88 and 87 lower part of the second condenser tank body Portion) it connects, the other end of refrigerant liquid pipe 88 is connect with the second evaporator tank body 67.It is equipped in refrigerant liquid pipe 88 for adding The condensating refrigerant pump 89 of pressure conveying refrigerant liquid Vf.

Second reactivator G2 and the second condenser C2 is interconnected.It is configured to by condensing Second reactivator G2 and second Device C2 connection, thus, it is possible to the regenerator refrigerant vapour Vg that will be generated in Second reactivator G2 to supply to the second condenser C2 It gives.Second reactivator G2 is connected to the second condenser C2 in the gas phase portion on top.In addition, Second reactivator G2 and the second condenser C2 becomes the internal pressure being substantially the same by being connected to.In addition, in the present embodiment, Second reactivator G2 and second is cold Condenser C2 is set to the lower section of the second absorber A2 and the second evaporator E2 simultaneously with height identical with the first condenser C1 And it is set to the top of the first absorber A1 and the first evaporator E1.

Gas-liquid separator 90 be import fluid-mixing Sm (the first concentrated solution Sa1 with to separate refrigerant vapour Vs mixed Fluid) and it is separated into equipment of the first concentrated solution Sa1 with refrigerant vapour Vs is separated, above-mentioned fluid-mixing Sm is inhaled by second Receive device A2 heating tube 15 and be heated the first weak solution Sw1 boiling and generate, above-mentioned gas-liquid separator 90 is equivalent to gas Liquid separation unit.Separation refrigerant vapour Vs is the steam from the first weak solution Sw1 refrigerant V being detached from.First concentrated solution Sa1 is It is detached from by separation refrigerant vapour Vs from the absorbing liquid S after the rising of the first weak solution Sw1 concentration.Connect in gas-liquid separator 90 Be connected to: the first concentrated solution pipe 91 that the first concentrated solution Sa1 is guided to the first absorber A1, will separation refrigerant vapour Vs to the It is the separation refrigerant vapour pipe 94 of one condenser C1 guidance, the first concentrated solution Sa1 is first dilute near the second absorber A2 The recurrent canal 95 and absorb liquid pipe from after the heating that the second absorber A2 imports fluid-mixing Sm first that solution conduit 18 guides 16.First concentrated solution pipe 91 constitutes the first concentrated solution flow path, one end and 90 lower part of gas-liquid separator to be stored with first dense molten The part (representative is bottom) of liquid Sa1 connects, and the other end is connect with the first concentrated solution spreading nozzle 12.Refrigerant is separated to steam One end of tracheae 94 is connect, the other end and the first condenser with the gas phase portion (representative is top) on 90 top of gas-liquid separator The top of tank body 47 connects.One end of recurrent canal 95 and the part for being stored with the first concentrated solution Sa1 of 90 lower part of gas-liquid separator (representative is bottom) connection, the other end are connect with the first weak solution pipe 18 near the second absorber A2.First after heating The one end for absorbing liquid pipe 16 is connect with the heating tube 15 of the second absorber A2, the gas phase portion of the other end and 90 side of gas-liquid separator Connection.

Absorption Refrigerator 1 is also equipped with first heat exchanger 31 and second heat exchanger 32.First heat exchanger 31 is Make the first weak solution pipe 18 flow the first weak solution Sw1 with the first concentrated solution pipe 91 flowing the first concentrated solution Sa1 into The equipment of row heat exchange.Second heat exchanger 32 is made in the second weak solution Sw2 of the second weak solution pipe 58 flowing and second The equipment that the second concentrated solution Sa2 that concentrated solution pipe 78 flows carries out heat exchange.

Illustrate the effect of Absorption Refrigerator 1 with continued reference to Fig. 1 and Fig. 2.Fig. 2 is Du's timberline of Absorption Refrigerator 1 Figure.In the Dühring's diagram of Fig. 2, the longitudinal axis indicates the dew-point temperature of refrigerant (being in the present embodiment water), and horizontal axis indicates to inhale Receive the temperature of liquid (being in the present embodiment LiBr aqueous solution).The line of upper right indicates the isoconcentrate of absorbing liquid, more dense to the right Degree is higher, and concentration is lower more to the left.In addition, since the dew-point temperature that the longitudinal axis indicates is in corresponding relationship with saturation pressure, In the absorption cycle of present embodiment that the steam of refrigerant is saturated vapor, can also regard the longitudinal axis as indicates main composition portion The internal pressure of part (absorber, evaporator, regenerator, condenser).

In the second condenser C2, the regenerator refrigerant vapour Vg evaporated in Second reactivator G2 is received, and be used in cold But the cooling water Y that water pipe 81 flows is cooled down and is condensed it and become refrigerant liquid Vf.Condensed refrigerant liquid Vf benefit It is conveyed with condensating refrigerant pump 89 into the second evaporator tank body 67 of the second evaporator E2.It is transported to the second evaporator tank body Refrigerant liquid Vf in 67 utilizes the heat source fluid H heating flowed in heat source tube 61 on the basis of dew-point temperature T2H simultaneously It evaporates and becomes the second evaporator refrigerant steam Ve2.In the second evaporator refrigerant steam Ve2 that the second evaporator E2 is generated It is mobile to the second absorber A2 being connected to the second evaporator E2.In this way, utilizing heat source fluid H's in Absorption Refrigerator 1 Heat directly heats refrigerant liquid Vf, and refrigerant liquid Vf becomes the second evaporator refrigerant supplied to the second absorber A2 Steam Ve2.

In the second absorber A2, the second concentrated solution Sa2 is spread from the second concentrated solution spreading nozzle 52, and the second of the distribution Concentrated solution Sa2 is absorbed from mobile the second next evaporator refrigerant steam Ve2 of the second evaporator E2.Absorb the second evaporator system The concentration of the second concentrated solution Sa2 of refrigerant vapor Ve2 reduces, to become the second weak solution Sw2 (A2a~A2b).It is inhaled second It receives in device A2, is generated when the second concentrated solution Sa2 absorbs the second evaporator refrigerant steam Ve2 and absorb heat.Utilize absorption heat The first weak solution Sw1 heating to being flowed in heating tube 15.Absorb the second evaporator refrigerant steam Ve2 and concentration is dense from second The second weak solution Sw2 after solution S a2 reduction is stored in the lower part of the second absorber tank body 57.Second weak solution Sw2 of storage Because of the difference of the internal pressure of gravity and the second absorber A2 and Second reactivator G2, towards Second reactivator G2 in the second weak solution pipe 58 flowings, and heat exchange is carried out and temperature reduction in second heat exchanger 32 and the second concentrated solution Sa2, and reaches Second reactivator G2。

The the second weak solution Sw2 for being delivered to Second reactivator G2 is spread from the second weak solution spreading nozzle 72, in dew point temperature The heat source fluid H flowed on the basis of degree T2L in heat source tube 71 is heated, and the refrigerant in the second weak solution Sw2 of distribution steams It sends out and becomes the second concentrated solution Sa2 (G2a~G2b), and be stored in the lower part of Second reactivator tank body 77.On the other hand, from The refrigerant V of two weak solution Sw2 evaporation is mobile to the second condenser C2 as regenerator refrigerant vapour Vg.It is stored in second Second concentrated solution Sa2 of 77 lower part of regenerator tank body, by the second concentrated solution pump 79 via the second concentrated solution pipe 78 pressurized delivered To the second concentrated solution spreading nozzle 52 of the second absorber A2.The flowing of the second concentrated solution pipe 78 the second concentrated solution Sa2 the Two heat exchangers 32 and the second weak solution Sw2 carry out heat exchange, and temperature flows into the second absorber A2 after rising, and dense from second Solution spreading nozzle 52 is spread.The the second concentrated solution Sa2 for being back to the second absorber A2 absorbs the second evaporator refrigerant steam Identical circulation is repeated in Ve2 later.

With the absorption in the above-mentioned second absorber A2 of progress, the second evaporator E2, Second reactivator G2, the second condenser C2 Circulation concurrently, carries out absorption cycle below in first absorber A1 etc..Via separation refrigerant vapour pipe 94 from gas Liquid/gas separator 90 imported into the separation refrigerant vapour Vs of the first condenser C1, is being revealed by the cooling water Y flowed in condenser pipe 41 It is cooled down on the basis of point temperature T1H and is condensed and become refrigerant liquid Vf, and be stored under the first condenser tank body 47 Portion.Refrigerant liquid Vf in first condenser tank body 47 is imported into the first evaporator tank body 27 via refrigerant liquid pipe 48.

The refrigerant liquid Vf for importeding into the first evaporator tank body 27 from the first condenser tank body 47 is stored in the first evaporator The lower part of tank body 27.Refrigerant liquid Vf in first evaporator tank body 27 is by the first refrigerated medium pump 29 and in refrigerant liquid pipe 28 It flows and reaches refrigerant liquid spreading nozzle 22.Refrigerant liquid Vf after reaching refrigerant liquid spreading nozzle 22 is towards evaporation tube 21 Spread, obtain the heat of cold water W flow in evaporation tube 21, a part evaporation on the basis of dew-point temperature T1L and as the One evaporator refrigerant steam Ve1, and it is imported into the first absorber tank body 17.The refrigerant liquid Vf being distributed seizes the cold water of heat W temperature reduces, and flows out and being supplied using place to the cold water such as air-conditioning W from evaporation tube 21.It is dissipated from refrigerant liquid spreading nozzle 22 Cloth and unevaporated refrigerant liquid Vf, mix, and be stored in first with the refrigerant liquid Vf imported from the first condenser tank body 47 The lower part of evaporator tank body 27.

As described above, the first evaporator refrigerant steam Ve1 that refrigerant liquid Vf captures heat from cold water W and generates is flowed into First absorber tank body 17.In the first absorber A1, spread from the first concentrated solution spreading nozzle 12 towards cooling tube 11 One concentrated solution Sa1 absorb from the first evaporator E1 it is mobile come the first evaporator refrigerant steam Ve1, concentration reduces and becomes the One weak solution Sw1 (A1a~A1b).In the first absorber tank body 17, the first evaporator refrigeration is absorbed in the first concentrated solution Sa1 It is generated when agent steam Ve1 and absorbs heat.The cooling water Y removal that the absorption heat of the generation is flowed in cooling tube 11.In cooling tube 11 The cooling water Y of flowing captures absorption heat and temperature rises, and flows out and is supplied to the first condenser C1's to cooling water liaison tube 34 Condenser pipe 41.The the first weak solution Sw1 generated in the first absorber tank body 17 is stored in the first absorber tank body 17.

The first weak solution Sw1 in first absorber tank body 17 pumps 19 pressurized delivereds by the first weak solution, thus first Weak solution pipe 18 flows, and carries out heat exchange temperature by first heat exchanger 31 and the first concentrated solution Sa1 and rise.Then, It is stored in the first concentrated solution Sa1 of 90 lower part of gas-liquid separator surplus in addition to the specified amount for flowing out to the first concentrated solution pipe 91 Surplus flows into the first weak solution Sw1, the first weak solution Sw1 and the first concentrated solution Sa1 flowed into via recurrent canal 95 and collaborates. The heating tube 15 in the second absorber A2 is imported into the first weak solution Sw1 behind the interflow the first concentrated solution Sa1.It is directed to First weak solution Sw1 of the heating tube 15 in two absorber A2 is steamed by absorbing second in the second concentrated solution Sa2 as described above The absorption heat heating generated when sending out device refrigerant vapour Ve2.In this way, the first weak solution Sw1 is via other media, in heating tube When being flowed through in 15 using generated in the second absorber A2 absorption heat and be directly heated, therefore in the past via other media The case where heating, is compared, and the thermal efficiency is more excellent.In addition, due to being used in the heating tube 15 being set in the second absorber A2 In making the first regenerated heating of weak solution Sw1, therefore can not in addition be arranged for the first regenerated regenerator of weak solution Sw1, So as to be able to suppress the enlargement of device for simplified.

The first weak solution Sw1 after the flowing of heating tube 15 is heated is as refrigerant V disengaging and after concentration rising First concentrated solution Sa1 (15a~15b).In the absorbing liquid that heating tube 15 flows out as the refrigerant being detached from from the first weak solution Sw1 V that is, the fluid-mixing Sm for separating refrigerant vapour Vs and the first concentrated solution Sa1 are flowed via the first absorption liquid pipe 16 after heating Enter gas-liquid separator 90.In gas-liquid separator 90, separation refrigerant vapour Vs is separated with the first concentrated solution Sa1, separation system Refrigerant vapor Vs concentrates on the gas phase portion of top, and the first concentrated solution Sa1 is stored in lower part.In point that gas-liquid separator 90 is isolated The first condenser C1 is flowed into via separation refrigerant vapour pipe 94 from refrigerant vapour Vs.On the other hand, it is stored in gas-liquid point What the thermal output with the first absorber A1 in the first concentrated solution Sa1 from 90 lower part of device, the first concentrated solution Sa1 of storage was suitble to Specified amount is flowed in the first concentrated solution pipe 91, and in first heat exchanger 31 with the first weak solution Sw1 carry out heat exchange and it is warm On the basis of degree reduces, the first concentrated solution spreading nozzle 12 is reached.It is stored in the first concentrated solution of the lower part of gas-liquid separator 90 Surplus in Sa1 in addition to the defined amount for flowing out to the first concentrated solution pipe 91, it is dilute via recurrent canal 95 and a part first Solution conduit 18 flows into heating tube on the basis of with the interflow the first weak solution Sw1 that 19 pressurized delivereds are come is pumped by the first weak solution 15 and by above-mentioned absorption heat heat, via after heating first absorption liquid pipe 16 be back to gas-liquid separator 90.That is, being stored in gas-liquid Surplus in first concentrated solution Sa1 of the lower part of separator 90 in addition to the defined amount for flowing out to the first concentrated solution pipe 91, It is recycled between heating tube 15 and gas-liquid separator 90.At this point, in the present embodiment, heating tube 15 and gas-liquid separator 90 it Between the first concentrated solution Sa1 for recycling, pass through the gas based on the impetus and density contrast between gas-liquid separator 90 and heating tube 15 Steep pumping action and Natural Circulation.In this way, making the first concentrated solution Sa1 in gas-liquid separator 90 and heating tube by bubble pumping action Between 15 in the case where Natural Circulation, if gas-liquid separator 90 to be arranged in the position higher than the heating tube 15 for being configured at topmost It sets, then airlift pump effect can be made to become strong.Identical circulation is repeated later.

As described above, Absorption Refrigerator 1 according to the present embodiment utilizes the heat source fluid H than importing High-temperature, the second concentrated solution Sa2 in the second absorber A2 generates when absorbing the second evaporator refrigerant steam Ve2 Absorption heat, the first weak solution Sw1 for flow in heating tube 15 is heated, so even the temperature of the heat source fluid H of importing compares It is low, it can also manufacture cold water W.It is flowed in addition, being directly heated using the absorption heat generated in the second absorber A2 in heating tube 15 The first dynamic weak solution Sw1, therefore the thermal efficiency is excellent.In addition, due in the heating tube 15 being set in the second absorber A2 It carries out for the first regenerated heating of weak solution Sw1, therefore can not in addition be arranged for the first regenerated regeneration of weak solution Sw1 Device, so as to be able to suppress the enlargement of device for simplified.

Next, illustrating the Absorption Refrigerator 1A of the first variation of the embodiments of the present invention referring to Fig. 3.Figure 3 be the system diagram of the signal of Absorption Refrigerator 1A.Absorption Refrigerator 1A compared with Absorption Refrigerator 1 (referring to Fig.1), Following aspect is different.In Absorption Refrigerator 1A, instead of the first condenser C1 in Absorption Refrigerator 1 (referring to Fig.1) with And the second condenser C2, it is provided with common condenser Cs.Common condenser Cs is that regenerator refrigeration is imported from Second reactivator G2 Agent steam Vg, and from gas-liquid separator 90 import separation refrigerant vapour Vs and make import refrigerant vapour Vg, Vs condensation and The equipment for generating refrigerant liquid Vf.Common condenser Cs has the stream for forming cooling water Y in the inside of common condenser tank body 487 The common cooling water pipe 481 on road.It is connected with the other end of cooling water liaison tube 34 in one end of common cooling water pipe 481, it is cooling One end of water liaison tube 34 is connect with cooling tube 11.Common condenser Cs is connected in the gas phase portion on top with Second reactivator G2, So as to import regenerator refrigerant vapour Vg from Second reactivator G2.In the gas phase portion on common 487 top of condenser tank body (representative is top) is connected with one end of separation refrigerant vapour pipe 94.Liquid phase in common 487 lower part of condenser tank body Portion's (representative is bottom) is connected with the one end for the common refrigerant liquid pipe 488 for flowing out refrigerant liquid Vf.Freezing jointly The other end of agent liquid pipe 488, which is connected with, to be guided refrigerant liquid Vf to the refrigerant liquid pipe 48 of the first evaporator E1 and will make Cryogen liquid Vf is guided to the refrigerant liquid pipe 88 of the second evaporator tank body 67.It is equipped in refrigerant liquid pipe 88 for pressurized delivered The condensating refrigerant pump 89 of refrigerant liquid Vf.In addition to above structure, the structure and Absorption Refrigerator 1 of Absorption Refrigerator 1A (referring to Fig.1) identical.According to the Absorption Refrigerator 1A constituted as described above, regenerator refrigerant vapour Vg can be made and divided Condensation is concentrated in common condenser Cs from refrigerant vapour Vs, is further simplified so as to realization device structure.

Next, illustrating the Absorption Refrigerator 1B of second variation of the embodiments of the present invention referring to Fig. 4.Figure 4 be the system diagram of the signal of Absorption Refrigerator 1B.Absorption Refrigerator 1B is compared with Absorption Refrigerator 1 (referring to Fig.1), no It is that gas-liquid separator 90 is integrally constituted with the second absorber A2 with putting.Absorption Refrigerator 1B is due to being disposed in the second absorption The outlet of the heating tube 15 of the inside of device tank body 57 is directly connected to gas-liquid separator 90, thus gas-liquid separator 90 be set as with The side wall of second absorber tank body 57 contacts.Therefore in Absorption Refrigerator 1B, it is not arranged in 1 (reference of Absorption Refrigerator First absorbs liquid pipe 16 (referring to Fig.1) after the heating being arranged in Fig. 1).That is, in Absorption Refrigerator 1B, due to gas-liquid separation The entrance of fluid-mixing Sm in device 90 and the outlet of heating tube 15 are adjacent to configuration, thus gas-liquid separator 90 and second absorbs Device tank body 57 is integrally constituted.In Absorption Refrigerator 1B as, gas-liquid separator 90 can be regarded to going out for the second absorber A2 Oral fluid room has gas-liquid separating function.In addition to above structure, structure and the Absorption Refrigerator 1 (ginseng of Absorption Refrigerator 1B According to Fig. 1) it is identical.According to the Absorption Refrigerator 1B constituted as described above, it is not necessary to become gas-liquid separator 90 independently of the The tank body of two absorber A2, is able to suppress the enlargement of device.In addition, the internal pressure of gas-liquid separator 90 with separate refrigerant vapour The internal pressure for the second condenser C2 that Vs is flowed into is identical, subatmospheric, since the specific volume of separation refrigerant vapour Vs is larger, Gas-liquid separator 90 is easy enlargement, in order to inhibit enlargement, can constitute as described below.

Fig. 5 a, Fig. 5 b are the cross-sectional views of the second absorber A2a of variation.Second absorber A2a is constituted are as follows: heating tube 15 It is contained in the second absorber tank body 57 with the second concentrated solution spreading nozzle 52, and is set in the outside of the second absorber tank body 57 It is equipped with liquid chamber forming member 59.Liquid chamber forming member 59 is the liquid chamber forming member for being set to one end of the second absorber tank body 57 The general designation of 59A and the liquid chamber forming member 59B for the other end for being set to the second absorber tank body 57.Liquid chamber forming member 59 be Inside forms the component of liquid chamber, which supplies the first weak solution Sw1 to each heating tube 15 or collect the from each heating tube 15 One weak solution Sw1 or fluid-mixing Sm.In this variation, liquid chamber is distinguished according to function or purposes for ease of description Referred to as entrance liquid chamber 53, outlet liquid chamber 55 and distinguish as the reversion liquid chamber 54 of liquid chamber in addition to this.Second absorber Tank body 57 is horizontally long shape in common setting.

In this variation, heating tube 15 is provided with more for being formed as linear in the second absorber tank body 57.Respectively Heating tube 15 is engaged with horizontally long one end of the second absorber tank body 57 and its other end of opposite side.Second absorber tank body 57 The face engaged for heating tube 15 be formed as tube sheet (heating tube sheet), which is formed with the hole that heating tube 15 can be made to insert. The inside of the heating tube 15 engaged with the tube sheet at 57 both ends of the second absorber tank body and the inside of the second absorber tank body 57 do not connect It is logical.In other words it constitutes are as follows: the first weak solution Sw1 or fluid-mixing Sm that are flowed in heating tube 15, inhaled with relative to second Receive fluid (the second concentrated solution Sa2 and the second evaporator that 15 outside of heating tube is flowed in or out and be present in device tank body 57 Refrigerant vapour Ve2) it does not mix.

In this variation, from make the second concentrated solution Sa2 spread as thin liquid film and as much as possible with heating tube From the viewpoint of 15 appearance face contact, each heating tube 15 is configured to axis as level.However, each heating tube 15 can also be in energy It is enough to obtain the desired degree for absorbing heat in the range of the second concentrated solution Sa2 wetting spreads over outer surface, it is configured to make axis Line becomes the inclination with upstroke slope.In the heating tube 15 being set in the second absorber tank body 57, it is configured at vertical side The position that can ensure to store the space of the second weak solution Sw2 thereunder is configured to the heating tube 15 of lowest part.Another party Face, the heating tube 15 for being configured at the topmost of the second absorber tank body 57, which is configured at, guarantees to be arranged the distribution spray of the second concentrated solution The position in the space of mouth 52.

Liquid chamber forming member 59 is installed on the two sides (pipe of the second absorber tank body 57 of the end engagement of each heating tube 15 Plate).Liquid chamber forming member 59 is the rectangular-shape component of one side opening, and the face of opening is installed on the second absorber tank to cover The mode of one end of multiple heating tubes 15 of the tube sheet of body 57 is installed on the tube sheet of the second absorber tank body 57.Liquid chamber forming portion Part 59 is installed on the tube sheet of the second absorber tank body 57, thus the tube sheet packet of liquid chamber forming member 59 and the second absorber tank body 57 The space enclosed becomes liquid chamber.By the way that demarcation plate 59s, the liquid chamber forming member of a side is arranged in the inside of liquid chamber forming member 59 The inside of 59A is divided into entrance liquid chamber 53, reversion liquid chamber 54, outlet liquid chamber 55, and the liquid chamber forming member 59B's of another party is interior Portion is divided into multiple reversion liquid chambers 54.Each liquid chamber 53,54,55 is connected to the inside of each heating tube 15.That is, the first weak solution Sw1 or fluid-mixing Sm flows in or out liquid chamber 53,54,55.Each liquid chamber 53,54,55 be communicated with for flow into the liquid chamber 53, 54,55 the first weak solution Sw1 or fluid-mixing Sm flowing heating tube 15 one end and/or for from the liquid chamber 53, 54, one end of the heating tube 15 of the first weak solution Sw1 or fluid-mixing the Sm flowing of 55 outflows.

Demarcation plate 59s setting are as follows: the first weak solution Sw1 or fluid-mixing Sm is made to flow in or out 1 of a certain liquid chamber Or 2 or more heating tubes 15, it is connected in the liquid chamber of opposite side from different liquid chambers.As a result, in each heating tube 15 and The the first weak solution Sw1 or fluid-mixing Sm flowed in liquid chamber is constituted are as follows: the whole single stream to advance while changing direction And pass through in the second absorber tank body 57 so that the first weak solution Sw1 or fluid-mixing Sm from be located at most upstream entrance Liquid chamber 53 flows to a direction in the heating tube 15 being connected to the entrance liquid chamber 53, and changes in the reversion liquid chamber 54 of opposite side The dynamic direction of unsteady flow is flowed in other heating tubes 15 being connected to the reversion liquid chamber 54 to the direction contrary with one. In addition, setting demarcation plate 59s is in order to divide liquid chamber 53,54,55, so that whole in each heating tube 15 and liquid chamber 53,54,55 First weak solution Sw1 or fluid-mixing Sm of the body as single stream flowing, integrally become under in the second absorber tank body 57 The flowing of side upward.In the example shown in Fig. 5 a, Fig. 5 b, heating tube 15 is configured to 4 accesses.Here, " access " is Refer to the flow path that the fluid flowed in some heating tube 15 flows in a manner of not with the fluid interflow in other heating tubes 15 Unit.

It constitutes in this variation are as follows: 4 respective flow path cross sectional areas of access are same degree.The respective flow path of access is cut Area is that same degree usually indicates: being formed as the same and all throughout overall length its flow path cross sectional area to include each heating tube 15 The diameter of heating tube 15 is identical and the fluid that is flowed in each heating tube 15 relative to the fluid in other heating tubes 15 neither Premised on shunting the structure that also do not collaborate, the radical for constituting the respective heating tube 15 of access is same degree, even if but heating The diameter and/or radical of pipe 15 are different according to access, and the respective flow path cross sectional area of access may be same degree.It is logical Composition in this way is crossed, downstream is more arrived, the amount of the separation refrigerant vapour Vs being detached from from the first weak solution Sw1 in fluid-mixing Sm is got over Increase, so that the volume flow of fluid-mixing Sm more increases, in contrast, since the flow path cross sectional area of each access is configured to identical Degree, therefore downstream is more arrived, the flow velocity that fluid-mixing Sm flows in heating tube 15 is faster, flows into the mixed flow of each heating tube 15 The flow of body Sm is closer to uniformly.Thereby, it is possible to inhibit the uneven equal caused heat transfer effect of the flowing in each heating tube 15 Rate reduces, and is able to suppress the concentration and temperature of the absorbing liquid S in each access locally raised situation, to avoid absorbing The crystallization of liquid S.In addition, the flow path cross sectional area of each access be same degree, in addition to homalographic it is equal situations such as other than, also include The case where the ratio between flow path cross sectional area of each access is in the range of providing.The ratio between flow path cross sectional area of each access is defined range Inside refer to: in the following range, can give the first weak solution Sw1 or fluid-mixing Sm can be avoided flow path cross sectional area ratio There is the heating tube 15 or the first weak solution Sw1 flowed into or mixed occur that the first weak solution Sw1 or fluid-mixing Sm are not flowed into Collaborate the flow velocity of the degree of the few heating tube 15 reduced to volatility of flow of body Sm.As the example of defined range, Flow path cross sectional area, which can be included, according to condition becomes the smallest logical relative to flow path cross sectional area as the sectional area of maximum access The ratio between sectional area on road (maximum secting area/minimum sectional area) is 1.5 or less.Each access of the flow path cross sectional area of the range of the ratio Unrestricted from upstream to putting in order between downstream, the sequence for arranging access is not associated with flow path cross sectional area.

In addition, heating tube 15 is configured to such as 8 accesses, 3 accesses, 2 accesses other than 4 accesses, it can also To be made of 1 access.In the case where being configured to multiple accesses, the flow path cross sectional area of each access is configured to identical journey Degree.In the case where being made of 1 access, omit reversion liquid chamber 54 and inlet porting liquid chamber 53 and outlet liquid chamber 55.That is, 1 In a access, one end of 1 or 2 or more heating tube 15 is connect with the entrance liquid chamber 53 of the first weak solution Sw1 of supply, and 1 The other end of the heating tube 15 of root or 2 or more is connect with the outlet liquid chamber 55 for collecting fluid-mixing Sm, in other words, is configured to Flow into heating tube 15 the first weak solution Sw1 be flowed into after flowing through heating tube 15 outlet liquid chamber 55,1 or 2 with On the respective internal flow of heating tube 15 fluid, neither shunt and also do not conform to from entrance liquid chamber 53 to outlet liquid chamber 55 Stream.With this configuration, the first weak solution Sw1 of liquid condition can be supplied from entrance liquid chamber 53 to each heating tube 15, thus Inhibit the uneven of the flowing in heating tube 15 that caused heat transfer efficiency is waited to reduce, and is able to suppress the concentration of absorbing liquid S And the local raised situation of temperature, to avoid the crystallization of absorbing liquid S.

The first weak solution pipe 18 is connected in entrance liquid chamber 53.Entrance liquid chamber 53 is constituted are as follows: is connect from the first weak solution pipe 18 The first weak solution Sw1 is received, and the first weak solution Sw1 received is guided to the heating tube 15 being connected to entrance liquid chamber 53.Separately Outside, recurrent canal 95 (referring to Fig. 4) can also be connect with entrance liquid chamber 53, without connecting with the first weak solution pipe 18.Invert liquid chamber 54 are constituted are as follows: make the first weak solution Sw1 imported from the reversion liquid chamber 54 of entrance liquid chamber 53 or upstream side via heating tube 15 Perhaps fluid-mixing Sm reversion makes the first weak solution Sw1 or fluid-mixing Sm to other different from the heating tube 15 of importing Heating tube 15 (heating tube 15 that reversion liquid chamber 54 or outlet liquid chamber 55 in the other end with downstream side are connected to) outflow.Oral fluid out Room 55 is configured to import fluid-mixing Sm from reversion liquid chamber 54 via heating tube 15.In the second absorber A2a middle outlet liquid chamber 55 It is configured to function as gas-liquid separation portion.

Outlet liquid chamber 55 extends to the place against the top of heating tube 15 than being located at vertical uppermost position.In the second absorber In A2a, the tube sheet of the part of the formation outlet liquid chamber 55 of the second absorber tank body 57 is extended to than the second absorber tank body 57 Top plate is located against the top.The top of outlet liquid chamber 55 becomes the gas phase portion 55g that is mainly full of by gas, export the lower section of liquid chamber 55 at For the liquid phase portion 55q being liquid filled.In gas phase portion, 55g is equipped with separator 96.Separator 96 is constituted are as follows: with length direction edge The mode of horizontal extension (broken line shape of approximate right angle occurs on vertical section), will make elongated sheet show right-angle bending greatly And the elongated member formed, it is arranged at predetermined intervals in horizontal direction orthogonal to the longitudinal direction multiple.Specified interval is stream Body on one side substantially along right-angle bending, while pass through separator 96, thus it enables that the interval of the disengaging of drop.Separator 96 is to cover The mode of the gross section product of the flow path of fluid in lid gas phase portion 55g is installed.In outlet, the liquid phase portion 55q of liquid chamber 55 is connected with First concentrated solution pipe 91, the first concentrated solution pipe 91 are flowed out for the first concentrated solution Sa1 separated from fluid-mixing Sm.Recurrent canal 95 connect with liquid phase portion 55q or the first concentrated solution pipe 91.Across separator 96 and the gas phase with liquid phase portion 55q opposite side Portion 55g is connected with the separation refrigerant vapour pipe 94 of the separation refrigerant vapour Vs outflow for separation.Go out with what is constituted in this way Second absorber A2a of oral fluid room 55, can compactly constitute often large gas-liquid separation portion.In addition, in order to improve outlet Multiple separators 96 can also be arranged on the flow direction of separation refrigerant vapour Vs in gas-liquid separation effect in liquid chamber 55.

Next, illustrating the second absorber A2b of other variations referring to Fig. 6 a, Fig. 6 b.Fig. 6 a, Fig. 6 b are the second absorptions The cross-sectional view of device A2b.The difference of second absorber A2b and the second absorber A2a (referring to Fig. 5 a, Fig. 5 b) are: going out oral fluid Room 55B is configured to after extending from demarcation plate 59s to vertical top, with a part of the top plate of the second absorber tank body 57 of covering Mode is horizontally extending.In the example shown in Fig. 6 a, Fig. 6 b, outlet liquid chamber 55B's covers along horizontal-extending part Substantially the 1/3 of the length of the top plate of second absorber tank body 57.At least than the second absorber tank body 57 in outlet liquid chamber 55B The high part of top plate becomes gas phase portion 55g, becomes liquid phase portion 55q than the part of gas phase portion 55g on the lower.In the second absorber tank The gas phase portion 55g of part above the top plate of body 57 is equipped with separator 96B.Separator 96B is constituted are as follows: elongated sheet will be made big The elongated member of shape showing right-angle bending and being formed extends that (broken line shape of approximate right angle exists along vertical with length direction Occur on horizontal cross-section) mode, arranged at a prescribed interval in the horizontal direction for traverse flow path multiple.Separator 96B with The mode of the gross section product of the flow path of fluid in covering gas phase portion 55g is installed.In addition to above structure, the second absorber The structure of A2b is identical as the second absorber A2a (referring to Fig. 5 a, Fig. 5 b).Second with the outlet liquid chamber 55B constituted in this way inhales Device A2b is received, the size that can not be influenced entrance liquid chamber 53, invert liquid chamber 54 freely changes separator 96B in the height direction Sectional area, therefore can by the separation refrigerant vapour Vs of large capacity carry out gas-liquid separation.In addition, in the second absorber A2b In, in order to improve gas-liquid separation effect, multiple separators can also be set on the flow direction of separation refrigerant vapour Vs 96B, in addition it can suitably change the water along outlet liquid chamber 55B in the range of the length of the top plate of the second absorber tank body 57 The flat part extended.

Next, illustrating the second absorber A2c of other another variations referring to Fig. 7 a, Fig. 7 b.Fig. 7 a, Fig. 7 b are second The cross-sectional view of absorber A2c.Compared with the second absorber A2b (referring to Fig. 6 a, Fig. 6 b), the second absorber A2c is with lower section Face is different.The outlet liquid chamber 55C of second absorber A2c is constituted are as follows: is not covered the horizontally extending part of gas phase portion 55g A part of the top plate of the second absorber of lid tank body 57, but cover the whole of the top plate of the second absorber tank body 57.It is exporting The gas phase portion 55g of liquid chamber 55C is provided with multiple gas phase portion partitions 98.Gas phase portion partition 98 is so that dividing in internal flow Flat-shaped part from the refrigerant vapour Vs mode limiting flowing path to wriggle to the left and right, is equivalent to flow path limiting component.Gas phase portion Demarcation plate 98 is installed to be: being contacted respectively with liquid chamber forming member 59 and the second absorber tank body 57 up and down, a side of left and right It is contacted with liquid chamber forming member 59, the space as flow path is formed between another party and liquid chamber forming member 59.It is formed in The space of one side of the left and right of gas phase portion partition 98 is to control and hand over every one that is arranged with multiple gas phase portion partitions 98 For the mode of formation, gas phase portion partition 98 is set.In addition to above structure, the structure of the second absorber A2c is absorbed with second Device A2b (referring to Fig. 6 a, Fig. 6 b) is identical.The second absorber A2c with the outlet liquid chamber 55C constituted in this way can be with simplicity Structure is used oral fluid room 55C and is functioned as gas-liquid separation portion.In addition in the second absorber A2c shown in Fig. 7 a, Fig. 7 b It constitutes are as follows: the horizontally extending part of gas phase portion 55g covers whole top plates of the second absorber tank body 57, but can The range for suitably carrying out the gas-liquid separation of separation refrigerant vapour Vs, can also be more complete than the top plate of the second absorber tank body 57 Length.In addition, the horizontally extending part of gas phase portion 55g can not also along the top plate of the second absorber tank body 57, and It is to be arranged along upper portion side wall.In addition, the horizontally extending part of gas phase portion 55g can also have the upward gradient.Separately Outside, in the second absorber A2c shown in Fig. 7 a, Fig. 7 b, in gas phase portion, 55g is not provided with separator, but can also combine point From device 96B (referring to Fig. 6 a, Fig. 6 b).

Next, illustrating the Absorption Refrigerator 1C of the third variation of the embodiments of the present invention referring to Fig. 8.Figure 8 be the system diagram of the signal of Absorption Refrigerator 1C.Absorption Refrigerator 1C and the difference of Absorption Refrigerator 1 are: inhaling Become second level temperature lifting type as the second absorber A2 and the second evaporator E2 of single-stage in receipts formula refrigeration machine 1 (referring to Fig.1). That is, in Absorption Refrigerator 1C, the second absorber A2 and the second evaporator E2 in Absorption Refrigerator 1 shown in FIG. 1, It is divided into the second high temperature absorber A2H and the second high-temperature evaporator E2H of high temperature side and the second low temperature absorption device of low temperature side A2L and the second cryogenic vaporizer E2L.At this point, the second high temperature absorber A2H is equivalent to the second absorber, the second high temperature evaporation Device E2H is equivalent to the second high-temperature evaporator, and the second low temperature absorption device A2L is equivalent to the second low temperature absorption device, the second low-temperature evaporation Device E2L is equivalent to the second evaporator.The internal pressure of inner pressure ratio the second low temperature absorption device A2L of second high temperature absorber A2H is high, and second The internal pressure of the second cryogenic vaporizer of inner pressure ratio E2L of high-temperature evaporator E2H is high.Second high temperature absorber A2H and the second high temperature steam It sends out device E2H to be connected on top, so that the steam of the refrigerant V of the second high-temperature evaporator E2H can be to the second high temperature absorber A2H It is mobile.Second low temperature absorption device A2L is connected to the second cryogenic vaporizer E2L on top, so that the system of the second cryogenic vaporizer E2L The steam of cryogen V can be mobile to the second low temperature absorption device A2L.In addition, in Absorption Refrigerator 1C, Absorption Refrigerator 1 (referring to Fig.1) the refrigerant liquid pipe 88 that condensating refrigerant pump 89 is equipped in is divided into: to the system of the second high-temperature evaporator E2H The high temperature condensating refrigerant that is equipped with of guidance pumps the high temperature refrigerant liquid pipe 88H of 89H and is to the second cryogenic vaporizer E2L Unite the low-temperature refrigerant liquid pipe 88L for being equipped with cryogenic condensation refrigerated medium pump 89L guided.First imported from the first absorber A1 Weak solution Sw1 is heated in the second high temperature absorber A2H.Heat source fluid H is imported into the second cryogenic vaporizer E2L.Second low temperature Absorber A2L is constituted are as follows: is absorbed using the second absorbing liquid S2 imported from the second high temperature absorber A2H from the second cryogenic vaporizer Absorption heat when the steam of the mobile next refrigerant V of E2L, heats the refrigerant liquid Vf in the second high-temperature evaporator E2H, second Generate the steam of refrigerant V in high-temperature evaporator E2H, the steam of the refrigerant V in the second high-temperature evaporator E2H of generation is to the Two high temperature absorber A2H are mobile, using absorption heat when being absorbed by the second concentrated solution Sa2 in the second high temperature absorber A2H, add The first weak solution Sw1 of heat.That is, in the case where the second absorber A2 and the second evaporator E2 is multistage, via utilizing heat source The refrigerant vapour of the heat generation of fluid H is absorbed by liquid absorption and the absorption heat that generates, using the heat of heat source fluid H, The refrigerant liquid as refrigerant vapour that ground connection heating is supplied to the second high temperature absorber A2H (the second absorber).It is absorbing In formula refrigeration machine 1C, Fig. 5 a, Fig. 5 b to Fig. 7 a, the structure around second absorber A2a, A2b, A2c shown in Fig. 7 b are usually answered For the second high temperature absorber A2H.Even if the second absorber A2 and the second evaporator E2 is three-level or more, Fig. 5 a, Fig. 5 b are extremely Structure around second absorber A2a, A2b, A2c shown in Fig. 7 a, Fig. 7 b is generally also applied to internal temperature and internal pressure most The second high absorber.However, in Absorption Refrigerator 1C, in addition to the first weak solution Sw1, in the second low temperature absorption device A2L The refrigerant V flowed in interior heat-transfer pipe (heating tube) also corresponds to heating target fluid.

In the above description, the second evaporator E2 and the second cryogenic vaporizer E2L is full-liquid type but it is also possible to be scattered Cloth.When making the second evaporator E2 and/or the second cryogenic vaporizer E2L distributed mode, in the second evaporator tank body 67 And/or second cryogenic vaporizer E2L tank body top setting spread refrigerant liquid Vf refrigerant liquid spreading nozzle, and will The refrigerant being connect in full-liquid type with the tank body lower part of the second evaporator tank body 67 and/or the second cryogenic vaporizer E2L The end of liquid pipe 88 and/or refrigerant liquid pipe 88L, connect with refrigerant liquid spreading nozzle.Alternatively, it is also possible to be arranged By the refrigerant liquid Vf of the second evaporator tank body 67 and/or the tank body lower part of the second cryogenic vaporizer E2L to refrigerant liquid The piping of spreading nozzle supply and pump.

In the above description, defined amount in the first concentrated solution Sa1 of 90 lower part of gas-liquid separator is stored in The outflow of one concentrated solution pipe 91, surplus is via the first absorbing liquid after recurrent canal 95, a part of first weak solution pipe 18 and heating Pipe 16 carries out Natural Circulation by bubble pumping action between heating tube 15 and gas-liquid separator 90, but can also be such as the office of Fig. 9 Shown in portion's system diagram, carried out by force in the first weak solution pipe 18 setting circulating pump 99 than the junction of two streams downstream with recurrent canal 95 System circulation.Circulating pump 99 is will to heat with the first weak solution Sw1 (the first absorbing liquid S1) indentation behind the interflow the first concentrated solution Sa1 The pump of pipe 15 is equivalent to the first absorbing liquid pump.If first absorbing liquid S1 is pressed into heating tube 15 by circulating pump 99, can increase Flow of the big first absorbing liquid S1 in heating tube 15, and stability of flow can be made, the stream being able to suppress in heating tube 15 Dynamic uneven equal caused heat transfer efficiency reduces, and is able to suppress the concentration and temperature locally raising of the first absorbing liquid S1 Situation improve so as to avoid the crystallization of the first absorbing liquid S1 and absorb heat transfer efficiency of the heat to the first absorbing liquid S1.Separately Outside, in addition to circulating pump 99, if the throttles such as throttle orifice, valve are arranged in the entrance in the first absorbing liquid S1 of gas-liquid separator 90, It can be improved the pressure of the first absorbing liquid S1 in heating tube 15, so that the first absorbing liquid S1 is inhibited to boil in heating tube 15, And then refrigerant V is inhibited to evaporate in heating tube 15, therefore the concentration of the first absorbing liquid S1 in heating tube 15 can be eliminated Variation can make the first absorbing liquid S1 keep the state heating of liquid, heat transfer effect can be made to stablize.First after pressurization absorbs Liquid S1 is absorbed heat heating and becomes high temperature, and is depressurized in gas-liquid separator 90, generates separation refrigerant vapour Vs, thus As the first concentrated solution Sa1.

Claims

1. a kind of Absorption Refrigerator, which is characterized in that have:

First evaporator, it is required when becoming refrigerant vapour and capturing the liquid evaporation of refrigerant from cooling subject fluid Evaporation latent heat, to cool down the cooling subject fluid；

First absorber imports the refrigerant vapour generated in first evaporator, and inhales the first absorbing liquid It receives；

Second absorber is provided with supplies in first absorber because absorbing the refrigerant vapour due to concentration inside it First absorbing liquid flow path of first absorbing liquid flowing after reduction, and the steaming of refrigerant is absorbed using the second absorbing liquid The absorption heat released when gas, heats first absorbing liquid in the first absorbing liquid flow path；

Second evaporator imports directly or indirectly to the steaming for generating the refrigerant supplied to second absorber The heat source fluid that the liquid of the refrigerant of gas is heated, and using the heat that the heat source fluid of importing is possessed come The liquid of refrigerant is heated, and generates the steam of refrigerant；

Gas-liquid separation portion will be generated in second absorber due to first absorbing liquid is heated from described first The refrigerant of absorbing liquid disengaging is separated with first absorbing liquid after the refrigerant is detached from and concentration rises；And

First concentrated solution flow path, by first absorbing liquid after concentration that the gas-liquid separation portion generates rises to described The guidance of first absorber.

2. Absorption Refrigerator according to claim 1, which is characterized in that have:

Regenerator, by due to absorbing the steam of the refrigerant in second absorber concentration reduce after described the Two absorbing liquids import, and second absorbing liquid of importing is heated using the heat that heat source fluid is possessed, and thus make described Refrigerant is detached from from second absorbing liquid, increase the concentration of the second absorbing liquid；And

Common condenser, by the steam for the refrigerant being detached from the regenerator from second absorbing liquid and in institute The steam for stating the refrigerant of gas-liquid separation portion generation imports, and makes the steam condensation of the refrigerant imported and generate system Cryogen liquid.

3. Absorption Refrigerator according to claim 1 or 2, which is characterized in that

Second absorber has the more heating tubes for constituting the first absorbing liquid flow path,

Second absorber has reversion liquid chamber, which will flow through first absorption of the inside of the heating tube Liquid guide it in such a way that the inside of other heating tubes is flowed round about to heating tube described in other,

Multiple heating tubes are configured to multiple accesses by the reversion liquid chamber,

It is same degree that the multiple access, which is respectively structured as flow path cross sectional area,.

4. Absorption Refrigerator according to claim 1 or 2, which is characterized in that

Second absorber has the 1 or more heating tube for constituting the first absorbing liquid flow path,

Second absorber has:

Entrance liquid chamber is connected to 1 or the more heating tubes, and is absorbed to the heating tube of connection supply described first Liquid；And

Liquid chamber is exported, is connected to 1 or the more heating tubes, it is complete to the heating tube being supplied from the entrance liquid chamber First absorbing liquid described in portion is collected after flowing through the heating tube.

5. Absorption Refrigerator according to claim 1 or 2, which is characterized in that

Has the first absorbing liquid pump, which is pressed into first absorbing liquid for being directed into second absorber To the first absorbing liquid flow path.

6. Absorption Refrigerator according to claim 3, which is characterized in that

7. Absorption Refrigerator according to claim 4, which is characterized in that

8. Absorption Refrigerator according to claim 1 or 2, which is characterized in that

By being configured adjacently the entrance of first absorbing liquid and the outlet of the first absorbing liquid flow path, thus the gas-liquid Separation unit is integrally constituted with second absorber.

9. Absorption Refrigerator according to claim 8, which is characterized in that

Have outlet liquid chamber, include liquid phase portion, which is arranged along the tank body of second absorber, to flowing through First absorbing liquid for stating the first absorbing liquid flow path is temporarily stored；Gas phase portion, the gas phase portion supply to absorb from described first The refrigerant vapour that liquid is detached from passes through,

The outlet liquid chamber is constituted are as follows: gas phase portion is provided with separator and functions as the gas-liquid separation portion.

10. Absorption Refrigerator according to claim 8, which is characterized in that

Have outlet liquid chamber, include liquid phase portion, which is arranged along the tank body of second absorber, to flowing through First absorbing liquid for stating the first absorbing liquid flow path is temporarily stored；Gas phase portion, the liquid phase portion supply to absorb from described first The refrigerant vapour that liquid is detached from passes through,

The outlet liquid chamber is constituted are as follows: the gas phase portion is to be constituted in a manner of horizontal-extending, and the sky in the gas phase portion Between be provided with multiple flow path limiting components, the flow path limiting component so that the gas phase portion flowing the refrigerant vapour to The sinuous mode limiting flowing path in left and right, the outlet liquid chamber are functioned as the gas-liquid separation portion.

11. Absorption Refrigerator according to claim 1 or 2, which is characterized in that have:

Second high-temperature evaporator generates the steam of the refrigerant supplied to second absorber；And

Second low temperature absorption device absorbs system using second absorbing liquid directly or indirectly imported from second absorber The absorption heat released when the steam of cryogen, heats the refrigerant of second high-temperature evaporator.