CN102853580A

CN102853580A - Air-conditioning refrigeration device

Info

Publication number: CN102853580A
Application number: CN2011104622005A
Authority: CN
Inventors: 刘雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-05
Filing date: 2011-12-18
Publication date: 2013-01-02
Anticipated expiration: 2031-12-18
Also published as: CN102853580B9; CN102853580B

Abstract

The invention discloses an air-conditioning refrigeration device which comprises a compressing mechanism, a four-way valve, a first heat exchanger, a second heat exchanger, a third heat exchanger, a first throttling mechanism, a second throttling mechanism, a first one-way valve and a second one-way valve. A high voltage node of the four-way valve is connected with the outlet end of the compressing mechanism, a low voltage node of the four-way valve is connected with the inlet end of the compressing mechanism, any one node of two reversing nodes of the four-way valve passes through the outlet end of the one-way valve, the inlet end of the one-way valve, the first heat exchanger, the first throttling mechanism, the inlet end of the second one-way valve and the outlet end of the second one-way valve sequentially to be connected with the other reversing node of the four-way valve, one end of the second heat exchanger is connected with the first throttling mechanism and the inlet end of the second one-way valve, and the other end of the second heat exchanger is connected with one end of the third heat exchanger through the second throttling mechanism. The air-conditioning refrigeration device is simple in structure, reliable in operation, low in cost and capable of achieving refrigeration, heating, hot water production and other functions.

Description

Operation of air conditioning systems

Technical field

The present invention relates to a kind of operation of air conditioning systems, belong to refrigeration technology field.

Background technology

The Winter-summer dual purpose operation of air conditioning systems that is all the time formed by compressing mechanism, four-way changement, heat source side heat exchanger, user's side heat exchanger and throttle mechanism, when be used for refrigeration summer, utilize user's side heat exchanger that room air is cooled off or produce chilled water, the condensation heat that refrigeration produces enters environment (as: outdoor air, surface water, underground water or soil etc.) by heat source side heat exchanger; Utilize heat source side heat exchanger from environment draw heat when being used for heating winter, heats by user's side heat exchanger production hot water or to room air again.As everyone knows, above-mentioned operation of air conditioning systems can only satisfy the unitary demand of refrigeration or heating when work, can't in the whole year operation process, satisfy user's refrigeration, heating, domestic hot-water's demand.

Summary of the invention

The purpose of this invention is to provide a kind of can be in the whole year operation process, satisfy user's refrigeration, heating, the operation of air conditioning systems of domestic hot-water's demand.

The problem that exists in order to overcome above-mentioned technology, the technical scheme of technical solution problem of the present invention is:

1, a kind of operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the second throttle mechanism (7), the 3rd heat exchanger (8), the first check valve (21) and the second check valve (22); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (74) in (2) two commutations of cross valve node is successively by the 64 pipeline (64), the second check valve (22) port of export, the second check valve (22) arrival end, the 70 pipeline (70), the second heat exchanger (4), the second throttle mechanism (7), the 68 pipeline (68), the 3rd heat exchanger (8), the 59 pipeline (59) links to each other with the high pressure node (71) of described cross valve (2) and the 60 pipeline (60) between compressing mechanism (1) port of export, described first throttle mechanism (5) one ends link to each other with the 70 pipeline (70) between the second check valve (22) arrival end and the second heat exchanger (4) by the 66 pipeline (66), and described first throttle mechanism (5) other end passes through First Heat Exchanger (3) successively, the first check valve (21) arrival end, the first check valve (21) port of export, the 61 pipeline (61) links to each other with another commutation node (72) of cross valve (2).

2, a kind of operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the second throttle mechanism (7), the 3rd heat exchanger (8), the second check valve (22), the 4th check valve (24) and the 5th check valve (25); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (72) in (2) two commutations of cross valve node is successively by the 61 pipeline (61), the 5th check valve (25) port of export, the 5th check valve (25) arrival end, the 66 pipeline (66), first throttle mechanism (5), First Heat Exchanger (3), the 63 pipeline (63) between the low pressure node (73) of the 65 pipeline (65) and compressing mechanism (1) arrival end and cross valve (2) links to each other, another commutation node (74) of described cross valve (2) is successively by the 64 pipeline (64), the 4th check valve (24) arrival end, the 4th check valve (24) port of export, the 59 pipeline (59), the 3rd heat exchanger (8), the 68 pipeline (68), the second throttle mechanism (7), the second heat exchanger (4), the 70 pipeline (70) links to each other with the 66 pipeline (66) between described first throttle mechanism (5) and the 5th check valve (25) arrival end, the 61 pipeline (61) between described the second check valve (22) arrival end and the 5th check valve (25) port of export and cross valve (2) the commutation node links to each other, and the second check valve (22) port of export links to each other with the 59 pipeline (59) between the 4th check valve (24) port of export and the 3rd heat exchanger (8).

3, a kind of operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the second throttle mechanism (7), the 3rd throttle mechanism (6), the 3rd heat exchanger (8), the first check valve (21) and the second check valve (22); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (74) in (2) two commutations of cross valve node is successively by the 64 pipeline (64), the second heat exchanger (4), the 3rd throttle mechanism (6), the 57 pipeline (57), the 52 pipeline (52), the second throttle mechanism (7), the 3rd heat exchanger (8), the 51 pipeline (51), the first check valve (21) port of export, the first check valve (21) arrival end, the 61 pipeline (61) links to each other with another commutation node (72) of cross valve (2), described the second check valve (22) arrival end links to each other with the 64 pipeline (64) by the 62 pipeline (62), described the second check valve (22) port of export links to each other with the 51 pipeline (51) between the first check valve (21) port of export and the 3rd heat exchanger (8), described First Heat Exchanger (3) one ends link to each other by the 63 pipeline (63) between the low pressure node (73) of the 65 pipeline (65) and described compressing mechanism (1) arrival end and cross valve (2), and described First Heat Exchanger (3) other end passes through first throttle mechanism (5) successively, the 58 pipeline (58) links to each other with pipeline between the second throttle mechanism (7) and the 3rd throttle mechanism (6).

4, a kind of operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the 3rd throttle mechanism (6), the 3rd heat exchanger (8) and the first check valve (21); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (74) in (2) two commutations of cross valve node is successively by the 64 pipeline (64), the second heat exchanger (4), the 3rd throttle mechanism (6), the 67 pipeline (67), the 70 pipeline (70), first throttle mechanism (5), First Heat Exchanger (3), the 63 pipeline (63) between the low pressure node (73) of the 65 pipeline (65) and described compressing mechanism (1) arrival end and cross valve (2) links to each other, described the 3rd heat exchanger (8) arrival end links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and described compressing mechanism (1) port of export and cross valve (2), described First Heat Exchanger (3) port of export links to each other with pipeline between first throttle mechanism (5) and the 3rd throttle mechanism (6) by the 66 pipeline (66), described the first check valve (21) arrival end links to each other with another commutation node (72) of cross valve (2) by the 61 pipeline (61), and described the first check valve (21) port of export links to each other with described the 3rd heat exchanger (8) arrival end pipeline.

The present invention compared with prior art, its beneficial effect is:

1. in running, several functions be can realize as required, hot water, refrigeration, heating produced;

2. can recycle the condensation heat that operation of air conditioning systems produces in running;

3. simple in structure, reliable operation, with low cost;

4. the present invention is applicable to industry and civilian operation of air conditioning systems, is specially adapted to the occasion of refrigeration, the warm domestic hot-water's demand of confession.

Description of drawings

Fig. 1 is the embodiment of the invention 1 structural representation;

Fig. 2 is the embodiment of the invention 2 structural representations;

Fig. 3 is the embodiment of the invention 3 structural representations;

Fig. 4 is the embodiment of the invention 4 structural representations;

Fig. 5 is the embodiment of the invention 5 structural representations;

Fig. 6 is the embodiment of the invention 6 structural representations;

Fig. 7 is the embodiment of the invention 8 structural representations;

Fig. 8 is the embodiment of the invention 9 structural representations;

Fig. 9 is water heater funnel structural representation of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing content of the present invention is described in further detail.

Embodiment 1

As shown in Figure 1, the present embodiment is a kind of multi-functional operation of air conditioning systems, is used for the annual occasion that refrigeration is arranged, supply warm hot water demand.Whole equipment comprises following part: compressing mechanism 1, cross valve 2, first throttle mechanism 5, the second throttle mechanism 7, the first check valve 21, the second check valve 22, First Heat Exchanger 3, the second heat exchanger 4 and the 3rd heat exchanger 8; First throttle mechanism 5, the second throttle mechanism 7 are electric expansion valve; First Heat Exchanger 3 is evaporimeters, is user's refrigeration production chilled water, usually adopts in volumetric heat exchanger, shell and tube exchanger, double pipe heat exchanger or the plate type heat exchanger any one; The second heat exchanger 4 is heat source side heat exchangers, both can be used as condenser, distributes the condensation heat that refrigeration produces to environment, also can be used as evaporimeter, absorbs heat from environment; The 3rd heat exchanger 8 is hot-water heaters, produce hot water for the user whole year, as shown in Figure 9, the water side heat face that the 3rd heat exchanger 8 is produced is used for heating domestic hot-water's (utilizing hot water heater 30 to produce), also be used on the other hand heating (shown in Figure 9,40 is heating system, and 50 is water circulating pump), in the winter time, allocate for the heat that adds between the warm productive life hot water by electric T-shaped valve 80.This operation of air conditioning systems can realize several functions, and the workflow under each function is as described below respectively.

(1) the double recuperation of heat of refrigeration

Under this function, the partial condensation heat that the 3rd heat exchanger 8 utilizes refrigeration to produce is produced hot water, and another partial condensation heat enters environment by the second heat exchanger 4, and First Heat Exchanger 3 is user's cooling; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 74.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets.Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, through the 60 pipeline 60, the 59 pipeline 59, the 3rd heat exchanger 8, the 68 pipeline 68, the second throttle mechanism 7, the second heat exchanger 4, the 70 pipeline 70, the 66 pipeline 66, first throttle mechanism 5, First Heat Exchanger 3, the first check valve 21, the 61 pipeline 61, cross valve 2 commutation nodes 72, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end successively.

(2) produce separately hot water

Under this function, the second heat exchanger 4 draw heat from environment utilizes the heat of drawing, and produces hot water in the 3rd heat exchanger 8.First Heat Exchanger 3 is not worked.

During work, first throttle mechanism 5 standard-sized sheets, 7 normal operations of the second throttle mechanism; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, through the 60 pipeline 60, the 59 pipeline 59, the 3rd heat exchanger 8, the 68 pipeline 68, the second throttle mechanism 7, the second heat exchanger 4, the 70 pipeline 70, the second check valve 22, the 64 pipeline 64, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end successively.

(3) winter frost removing

During winter frost removing, its workflow is identical with the double heat recovery function of refrigeration.

Embodiment 2

As shown in Figure 2, the present embodiment also is a kind of multi-functional operation of air conditioning systems, is used for the annual occasion that refrigeration is arranged, supply warm hot water demand.With the difference of embodiment 1 be to have increased flow direction control valve 41, the 3rd check valve 23 and the 65 pipeline 65 in the system.

Flow direction control valve 41, the 3rd check valve 23 and the connected mode of the 65 pipeline 65 in system are: the 3rd check valve 23 arrival ends link to each other with the 70 pipeline 70 by the 66 pipeline 66, and the 3rd check valve 23 ports of export link to each other with First Heat Exchanger 3 by first throttle mechanism 5; Flow direction control valve 41 1 ends link to each other with the 68 pipeline 68 between the 3rd heat exchanger 8 and the second throttle mechanism 7 by the 62 pipeline 62, and flow direction control valve 41 other ends pass through the 69 pipeline 69 and link to each other with pipeline between first throttle mechanism 5 and the 3rd check valve 23 ports of export; The 65 pipeline 65 1 ends link to each other with the 63 pipeline 63 between compressing mechanism 1 arrival end and the cross valve 2 low pressure nodes 73, and the 65 pipeline 65 other ends link to each other with pipeline between First Heat Exchanger 3 and the first check valve 21 arrival ends.

In the course of work, when flow direction control valve 41 is closed, can realize embodiment 1 described all functions; When flow direction control valve 41 standard-sized sheets, and when first throttle mechanism 5 and the second throttle mechanism 7 all work, can also realize needing the simultaneously double hot water function of producing of refrigeration by the user, under this function, refrigerating capacity and hot water amount can be according to user's independent adjustings of needs while.Be applicable to heat load large, and the little use occasion of cooling load.At this moment, the second heat exchanger 4 draw heat from environment, First Heat Exchanger 3 is user's cooling, the condensation heat that produces of refrigeration and the heat of from environment, drawing, in the 3rd heat exchanger 8 all for the production of hot water.

When the present embodiment was worked need the simultaneously double production of refrigeration hot water function by the user under, first throttle mechanism 5, the second throttle mechanism 7 all worked, flow direction control valve 41 standard-sized sheets; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

Its workflow is: cold-producing medium successively through the 60 pipeline 60, the 59 pipeline 59, the 3rd heat exchanger 8, enters the 68 pipeline 68 and is divided into two-way after discharging from compressing mechanism 1 port of export; One the tunnel through the second throttle mechanism 7, the second heat exchanger 4, the 70 pipeline 70, the second check valve 22, the 64 pipeline 64, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, enter the 63 pipeline 63, another road is through the 62 pipeline 62, flow direction control valve 41, the 69 pipeline 69, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, also enter the 63 pipeline 63, two-way is got back to compressing mechanism 1 arrival end after the 63 pipeline 63 mixes.

Embodiment 3

Embodiment 1 is in the process that realizes the double heat recovery function of refrigeration, because the heat radiation of cross valve 2 and pipe surface, in the process of working long hours, unavoidably have few part high-temperature high-pressure refrigerant gas and condense into liquid, accumulate in cross valve 2 inside the high-pressure side or (with) in the 64 pipeline 64, for avoiding or alleviating the impact that this phenomenon is brought circulation.As shown in Figure 3, in system, set up one second capillary 12.The connected mode of the second capillary 12 in system is as follows.

Scheme one: as shown in Figure 3, an end of the second capillary 12 links to each other with the 64 pipeline 64 of the second check valve 22 ports of export, and the other end of the second capillary 12 links to each other with the 70 pipeline 70 of the second check valve 22 arrival ends.

One end of two: the second capillaries 12 of scheme links to each other with the 64 pipeline 64 of the second check valve 22 ports of export, and the other end of the second capillary 12 links to each other with the 63 pipeline 63.

By the same token, embodiment 1 is realizing producing separately in the process of hot water function, for fear of refrigerant liquid accumulate in cross valve 2 inside the high-pressure side or (with) in the 61 pipeline 61.As shown in Figure 3, in system, set up one first capillary 11.The connected mode of the first capillary 11 in system is as follows.

Scheme one: as shown in Figure 3, an end of the first capillary 11 links to each other with the 61 pipeline 61 of the first check valve 21 ports of export, and the other end of the first capillary 11 links to each other with pipeline between first throttle mechanism 5 and the First Heat Exchanger 3.

One end of two: the first capillaries 11 of scheme links to each other with the 61 pipeline 61 of the first check valve 21 ports of export, and the other end of the first capillary 11 links to each other with pipeline between the first check valve 21 arrival ends and the First Heat Exchanger 3.

One end of three: the first capillaries 11 of scheme links to each other with the 61 pipeline 61 of the first check valve 21 ports of export, and the other end of the first capillary 11 links to each other with the 63 pipeline 63.

The present embodiment, the first capillary 11, the connected mode of the second capillary 12 in system also are applicable to embodiment 2 and embodiment 4.

Embodiment 4

As shown in Figure 4, the difference of the present embodiment and embodiment 1 is to have increased liquid reservoir 9, the 3rd check valve 23, flow direction control valve 41 in the system.

Liquid reservoir 9, the 3rd check valve 23, the connected mode of flow direction control valve 41 in system are: first throttle mechanism 5 one ends link to each other with First Heat Exchanger 3, first throttle mechanism 5 other ends link to each other with liquid reservoir 9, the 3rd check valve 23 arrival ends link to each other with the 66 pipeline 66, the 3rd check valve 23 ports of export link to each other with liquid reservoir 9, flow direction control valve 41 1 ends link to each other with the 68 pipeline 68 between the 3rd heat exchanger 8 and the second throttle mechanism 7 by the 62 pipeline 62, and flow direction control valve 41 other ends pass through the 69 pipeline 69 and link to each other with liquid reservoir 9.

The described scheme of the present embodiment is applicable to the present invention all embodiment except embodiment 8 and 9.

Embodiment 5

As shown in Figure 5, the present embodiment also is a kind of multi-functional air conditioner refrigeration plant, is used for the annual occasion that refrigeration is arranged, supply warm hot water demand.

Whole equipment comprises following part: compressing mechanism 1, cross valve 2, first throttle mechanism 5, the second throttle mechanism 7, the second check valve 22, the 4th check valve 24, the 5th check valve 25, First Heat Exchanger 3, the second heat exchanger 4 and the 3rd heat exchanger 8; First throttle mechanism 5, the second throttle mechanism 7 are electric expansion valve; First Heat Exchanger 3 is evaporimeters, is user's refrigeration production chilled water, usually adopts in volumetric heat exchanger, double pipe heat exchanger, shell and tube exchanger or the plate type heat exchanger any one; The second heat exchanger 4 is heat source side heat exchangers, both can be used as condenser, distributes the condensation heat that refrigeration produces to environment, also can be used as evaporimeter, absorbs heat from environment; The 3rd heat exchanger 8 is hot-water heaters, produce hot water for the user whole year, as shown in Figure 9, the water side heat face that the 3rd heat exchanger 8 is produced is used for heating domestic hot-water's (utilizing hot water heater 30 to produce), also be used on the other hand heating (shown in Figure 9,40 is heating system, and 50 is water circulating pump), in the winter time, allocate for the heat that adds between the warm productive life hot water by electric T-shaped valve 80.This operation of air conditioning systems also can realize embodiment 1 described function, and the workflow under each function is as described below respectively.

(1) the double recuperation of heat of refrigeration

Under this function, the partial condensation heat that the 3rd heat exchanger 8 utilizes refrigeration to produce is produced hot water, and another partial condensation heat enters environment by the second heat exchanger 4, and First Heat Exchanger 3 is user's cooling; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets.Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 59 pipeline 59, the 3rd heat exchanger 8, the 68 pipeline 68, the second throttle mechanism 7, the second heat exchanger 4, the 70 pipeline 70, the 66 pipeline 66, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(2) produce separately hot water

Under this function, the second heat exchanger 4 draw heat from environment utilizes the heat of drawing, and produces hot water in the 3rd heat exchanger 8, and First Heat Exchanger 3 is not worked.

During work, first throttle mechanism 5 closes, 7 normal operations of the second throttle mechanism; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 74.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, the 64 pipeline 64, the 4th check valve 24 arrival ends, the 4th check valve 24 ports of export, the 59 pipeline 59, the 3rd heat exchanger 8, the 68 pipeline 68, the second throttle mechanism 7, the second heat exchanger 4, the 70 pipeline 70, the 66 pipeline 66, the 5th check valve 25 arrival ends, the 5th check valve 25 ports of export, the 61 pipeline 61, cross valve 2 commutation nodes 72, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(3) winter frost removing

Embodiment 6

As shown in Figure 6, the present embodiment also is a kind of multi-functional air conditioner refrigeration plant, is used for the annual occasion that refrigeration is arranged, supply warm hot water demand.With the difference of embodiment 5 be to have increased flow direction control valve 41, the 3rd check valve 23 in the system.

Flow direction control valve 41, the connected mode of the 3rd check valve 23 in system are: the 3rd check valve 23 arrival ends link to each other with the 66 pipeline 66, and the 3rd check valve 23 ports of export link to each other with First Heat Exchanger 3 by first throttle mechanism 5; Flow direction control valve 41 1 ends link to each other with the 68 pipeline 68 between the 3rd heat exchanger 8 and the second throttle mechanism 7 by the 62 pipeline 62, and flow direction control valve 41 other ends pass through the 69 pipeline 69 and link to each other with pipeline between first throttle mechanism 5 and the 3rd check valve 23 ports of export.

In the course of work, when flow direction control valve 41 is closed, can realize embodiment 5 described all functions; When flow direction control valve 41 standard-sized sheets, and when first throttle mechanism 5 and the second throttle mechanism 7 all work, can also realize needing the simultaneously double hot water function of producing of refrigeration by the user, under this function, refrigerating capacity and hot water amount can be according to user's independent adjustings of needs while.At this moment, the second heat exchanger 4 draw heat from environment, First Heat Exchanger 3 is user's cooling, the condensation heat that produces of refrigeration and the heat of from environment, drawing, in the 3rd heat exchanger 8 all for the production of hot water.

When the present embodiment is worked need the simultaneously double production of refrigeration hot water function by the user under,

first throttle mechanism

5,7 normal operations of the second throttle mechanism, flow direction control valve 41 standard-sized sheets.Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 74.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, the 64 pipeline 64, the 4th check valve 24 arrival ends, the 4th check valve 24 ports of export, the 59 pipeline 59, the 3rd heat exchanger 8, enter the 68 pipeline 68 and be divided into two-way successively; One the tunnel successively through the second throttle mechanism 7, the second heat exchanger 4, the 70 pipeline 70, the 66 pipeline 66, the 5th check valve 25 arrival ends, the 5th check valve 25 ports of export, the 61 pipeline 61, cross valve 2 commutation nodes 72, cross valve 2 low pressure nodes 73, enter the 63 pipeline 63; Another road also enters the 63 pipeline 63 successively through the 62 pipeline 62, flow direction control valve 41, the 69 pipeline 69, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65; Two-way is got back to compressing mechanism 1 arrival end after the 63 pipeline 63 mixes, finish the one action circulation.

Embodiment 7

When the embodiment of the invention 1 to 6 described operation of air conditioning systems was designed to split air conditioner, whole equipment was comprised of outdoor unit and indoor unit two parts.

Outdoor unit is comprised of the second throttle mechanism 7 and the second heat exchanger 4; Indoor unit by the embodiment of the invention 1 to 6 respectively in the described operation of air conditioning systems other parts except the second throttle mechanism 7 and the second heat exchanger 4 form; Outdoor unit links to each other by the 68 pipeline 68, the 70 pipeline 70 with indoor unit.

Embodiment 8

As shown in Figure 7, the present embodiment also is a kind of multi-functional air conditioner refrigeration plant, is used for the annual occasion that refrigeration is arranged, supply warm hot water demand.

Whole equipment comprises following part: compressing mechanism 1, cross valve 2, first throttle mechanism 5, the second throttle mechanism 7, the 3rd throttle mechanism 6, the first check valve 21, the second check valve 22, First Heat Exchanger 3, the second heat exchanger 4 and the 3rd heat exchanger 8; First throttle mechanism 5, the second throttle mechanism 7, the 3rd throttle mechanism 6 are electric expansion valve; First Heat Exchanger 3 is evaporimeters, is user's refrigeration production chilled water, usually adopts in volumetric heat exchanger, double pipe heat exchanger, shell and tube exchanger or the plate type heat exchanger any one; The second heat exchanger 4 is heat source side heat exchangers, both can be used as condenser, distributes the condensation heat that refrigeration produces to environment, also can be used as evaporimeter, absorbs heat from environment; The 3rd heat exchanger 8 is hot-water heaters, produce hot water for the user whole year, as shown in Figure 9, the water side heat face that the 3rd heat exchanger 8 is produced is used for heating domestic hot-water's (utilizing hot water heater 30 to produce), also be used on the other hand heating (shown in Figure 9,40 is heating system, and 50 is water circulating pump), in the winter time, allocate for the heat that adds between the warm productive life hot water by electric T-shaped valve 80.This operation of air conditioning systems also can realize embodiment 1 described function, and the workflow under each function is as described below respectively.

(1) separate refrigeration

Under this function, whole condensation heat that refrigeration produces enter environment by the second heat exchanger 4, and First Heat Exchanger 3 is user's cooling, and the 3rd heat exchanger 8 is not worked; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 74.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 cuts out, the 3rd throttle mechanism 6 standard-sized sheets.First throttle mechanism 5 is used for the throttling of refrigerant liquid.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, the 64 pipeline 64, the second heat exchanger 4, the 3rd throttle mechanism 6, the 57 pipeline 57, the 58 pipeline 58, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(2) the double part of refrigeration recuperation of heat

During work, first throttle mechanism 5, the second throttle mechanism 7, the 3rd throttle mechanism 6 all work, first throttle mechanism 5 is used for the throttling of refrigerant liquid, and the second throttle mechanism 7, the 3rd throttle mechanism 6 are respectively applied to regulate the superheated refrigerant steam flow by the 3rd heat exchanger 8 and the second heat exchanger 4.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, enter the 64 pipeline 64 and be divided into two-way; One the tunnel successively by the 62 pipeline 62, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 51 pipeline 51, the 3rd heat exchanger 8, the second throttle mechanism 7, the 52 pipeline 52, enters the 58 pipeline 58; Another road by the second heat exchanger 4, the 3rd throttle mechanism 6, the 57 pipeline 57, also enters the 58 pipeline 58 successively; Two-way successively by first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, is got back to compressing mechanism 1 arrival end again after the 58 pipeline 58 mixes, finish the one action circulation.

(3) the double full recuperation of heat of refrigeration

Under this function, whole condensation heat that the 3rd heat exchanger 8 utilizes refrigeration to produce are produced hot water, and First Heat Exchanger 3 is user's cooling, and the second heat exchanger 4 is not worked; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets, the 3rd throttle mechanism 6 cuts out.First throttle mechanism 5 is used for the throttling of refrigerant liquid.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 51 pipeline 51, the 3rd heat exchanger 8, the second throttle mechanism 7, the 52 pipeline 52, the 58 pipeline 58, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(4) produce separately hot water

During work, first throttle mechanism 5 closes, the second throttle mechanism 7 standard-sized sheets, 6 normal operations of the 3rd throttle mechanism; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 51 pipeline 51, the 3rd heat exchanger 8, the second throttle mechanism 7, the 52 pipeline 52, the 57 pipeline 57, the 3rd throttle mechanism 6, the second heat exchanger 4, the 64 pipeline 64, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(5) need the simultaneously double hot water of producing of refrigeration by the user

Under this function, refrigerating capacity and hot water amount can be according to user's simultaneously independent adjustings of needs.At this moment, the second heat exchanger 4 draw heat from environment, First Heat Exchanger 3 is user's cooling, the condensation heat that produces of refrigeration and the heat of from environment, drawing, in the 3rd heat exchanger 8 all for the production of hot water.

During work,

first throttle mechanism

5,6 normal operations of the 3rd throttle mechanism, the second throttle mechanism 7 standard-sized sheets.First throttle mechanism 5, the 3rd throttle mechanism 6 are used for the throttling of refrigerant liquid, regulate respectively the refrigerant flow by First Heat Exchanger 3 and the second heat exchanger 4.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 51 pipeline 51, the 3rd heat exchanger 8, the second throttle mechanism 7, enter the 52 pipeline 52 and be divided into two-way successively; The first via through the 57 pipeline 57, the 3rd throttle mechanism 6, the second heat exchanger 4, the 64 pipeline 64, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, enters the 63 pipeline 63 successively; The second the tunnel successively through the 58 pipeline 58, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, also enters the 63 pipeline 63; Two-way is got back to compressing mechanism 1 arrival end after the 63 pipeline 63 mixes, enter compressing mechanism 1 and again compressed, and finishes the one action circulation.

(6) winter frost removing

During winter frost removing, its workflow is identical with the separate refrigeration function.

The present embodiment scheme shown in Figure 7, by in system, increasing a liquid reservoir 9, following further improvement project is arranged, at this moment, the connectivity scenario of liquid reservoir 9 in system is: first throttle mechanism 5 one ends link to each other with First Heat Exchanger 3, first throttle mechanism 5 other ends link to each other with liquid reservoir 9 by the 58 pipeline 58, the 3rd throttle mechanism 6 one ends link to each other with the second heat exchanger 4, the 3rd throttle mechanism 6 other ends link to each other with liquid reservoir 9 by the 57 pipeline 57, the second throttle mechanism 7 one ends link to each other with the 3rd heat exchanger 8, and the second throttle mechanism 7 other ends are by the 52 pipeline 52 and described the 57 pipeline 57, any place in the 58 pipeline 58 or the liquid reservoir 9 links to each other.

Embodiment 9

As shown in Figure 8, the present embodiment also is a kind of multi-functional air conditioner refrigeration plant, is used for the annual occasion that refrigeration is arranged, supply warm hot water demand.

Whole equipment comprises following part: compressing mechanism 1, cross valve 2, first throttle mechanism 5, the 3rd throttle mechanism 6, the first check valve 21, flow direction control valve 41, First Heat Exchanger 3, the second heat exchanger 4 and the 3rd heat exchanger 8; First throttle mechanism 5, the 3rd throttle mechanism 6 are electric expansion valve; Flow direction control valve 41 is flow control valves; First Heat Exchanger 3 is evaporimeters, is user's refrigeration production chilled water, usually adopts in volumetric heat exchanger, double pipe heat exchanger, shell and tube exchanger or the plate type heat exchanger any one; The second heat exchanger 4 is heat source side heat exchangers, both can be used as condenser, distributes the condensation heat that refrigeration produces to environment, also can be used as evaporimeter, absorbs heat from environment; The 3rd heat exchanger 8 is hot-water heaters, produce hot water for the user whole year, as shown in Figure 9, the water side heat face that the 3rd heat exchanger 8 is produced is used for heating domestic hot-water's (utilizing hot water heater 30 to produce), also be used on the other hand heating (shown in Figure 9,40 is heating system, and 50 is water circulating pump), in the winter time, allocate for the heat that adds between the warm productive life hot water by electric T-shaped valve 80.This operation of air conditioning systems also can realize embodiment 8 described functions, and the workflow under each function is as described below respectively.

(1) separate refrigeration

During work, 5 normal operations of first throttle mechanism, flow direction control valve 41 is closed, the 3rd throttle mechanism 6 standard-sized sheets.First throttle mechanism 5 is used for the throttling of refrigerant liquid.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, the 64 pipeline 64, the second heat exchanger 4, the 3rd throttle mechanism 6, the 67 pipeline 67, the 70 pipeline 70, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(2) the double part of refrigeration recuperation of heat

During work, first throttle mechanism 5, flow direction control valve 41, the 3rd throttle mechanism 6 all work, first throttle mechanism 5 is used for the throttling of refrigerant liquid, and flow direction control valve 41, the 3rd throttle mechanism 6 are respectively applied to regulate the superheated refrigerant steam flow by the 3rd heat exchanger 8 and the second heat exchanger 4.

Its workflow is: cold-producing medium enters the 60 pipeline 60 and is divided into two-way after discharging from compressing mechanism 1 port of export; One the tunnel successively by cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, the 64 pipeline 64, the second heat exchanger 4, the 3rd throttle mechanism 6, the 67 pipeline 67, enters the 70 pipeline 70; Another road through the 59 pipeline 59, flow direction control valve 41, the 3rd heat exchanger 8, the 66 pipeline 66, also enters the 70 pipeline 70 successively; Two-way successively by first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, is got back to compressing mechanism 1 arrival end again after the 70 pipeline 70 mixes, finish the one action circulation.

(3) the double full recuperation of heat of refrigeration

Under this function, whole condensation heat that the 3rd heat exchanger 8 utilizes refrigeration to produce are produced hot water, and First Heat Exchanger 3 is user's cooling, and the second heat exchanger 4 is not worked.Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

During work, 5 normal operations of first throttle mechanism, flow direction control valve 41, the 3rd throttle mechanism 6 are closed.First throttle mechanism 5 is used for the throttling of refrigerant liquid.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 3rd heat exchanger 8, the 66 pipeline 66, the 70 pipeline 70, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

(4) produce separately hot water

During work, flow direction control valve 41, first throttle mechanism 5 close, 6 normal operations of the 3rd throttle mechanism; Cross valve 2 high pressure nodes 71 are communicated with cross valve 2 commutation nodes 72.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 3rd heat exchanger 8, the 66 pipeline 66, the 67 pipeline 67, the 3rd throttle mechanism 6, the second heat exchanger 4, the 64 pipeline 64, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, finish the one action circulation.

During work,

first throttle mechanism

5,6 normal operations of the 3rd throttle mechanism, flow direction control valve 41 is closed.First throttle mechanism 5, the 3rd throttle mechanism 6 are used for the throttling of refrigerant liquid, regulate respectively the refrigerant flow by First Heat Exchanger 3 and the second heat exchanger 4.

Its workflow is: after cold-producing medium is discharged from compressing mechanism 1 port of export, through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 3rd heat exchanger 8, enter the 66 pipeline 66 and be divided into two-way successively; The first via through the 67 pipeline 67, the 3rd throttle mechanism 6, the second heat exchanger 4, the 64 pipeline 64, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, enters the 63 pipeline 63 successively; The second the tunnel successively through the 70 pipeline 70, first throttle mechanism 5, First Heat Exchanger 3, the 65 pipeline 65, also enters the 63 pipeline 63; Two-way is got back to compressing mechanism 1 arrival end after the 63 pipeline 63 mixes, enter compressing mechanism 1 and again compressed, and finishes the one action circulation.

(6) winter frost removing

The present embodiment scheme shown in Figure 8 has following three improvement projects.

1) improvement project one

By in system, increasing a liquid reservoir 9, can make further improvements the present embodiment scheme shown in Figure 8, at this moment, the connectivity scenario of liquid reservoir 9 in system is: the 3rd heat exchanger 8 ports of export link to each other with liquid reservoir 9 by the 66 pipeline 66, the 3rd throttle mechanism 6 one ends link to each other with the second heat exchanger 4, the 3rd throttle mechanism 6 other ends link to each other with liquid reservoir 9 by the 67 pipeline 67, first throttle mechanism 5 one ends link to each other with First Heat Exchanger 3, and first throttle mechanism 5 other ends are by the 70 pipeline 70 and the 66 pipeline 66, any place in the 67 pipeline 67 or the liquid reservoir 9 links to each other.

2) improvement project two

By in system, increasing by second throttle mechanism 7, can make further improvements the present embodiment scheme shown in Figure 8, the second throttle mechanism 7 be a throttle mechanism with turn-off function (for example: electric expansion valve) or flow control device, at this moment, the connectivity scenario of the second throttle mechanism 7 in system is: the second throttle mechanism 7 one ends link to each other with the 3rd heat exchanger 8 ports of export, and the second throttle mechanism 7 other ends link to each other with the 66 pipeline 66.

In improvement project two, flow direction control valve 41 can adopt magnetic valve, also can realize all functions of the present embodiment scheme shown in Figure 8; When improvement project two was worked under refrigeration is held concurrently the part heat recovery function, the second throttle mechanism 7 was used for regulating the superheated refrigerant steam flow by the 3rd heat exchanger 8.

For improvement project two, by in system, increasing a liquid reservoir 9, can do further improvement, at this moment, the connectivity scenario of liquid reservoir 9 in system is: the second throttle mechanism 7 one ends link to each other with the 3rd heat exchanger 8 ports of export, the second throttle mechanism 7 other ends link to each other with liquid reservoir 9 by the 66 pipeline 66, the 3rd throttle mechanism 6 one ends link to each other with the second heat exchanger 4, the 3rd throttle mechanism 6 other ends link to each other with liquid reservoir 9 by the 67 pipeline 67, first throttle mechanism 5 one ends link to each other with First Heat Exchanger 3, and first throttle mechanism 5 other ends are by the 70 pipeline 70 and the 66 pipeline 66, any place in the 67 pipeline 67 or the liquid reservoir 9 links to each other.

3) improvement project three

Improvement project three from the difference of the present embodiment scheme shown in Figure 8 is: flow direction control valve 41 residing position in system is different.In improvement project three, flow direction control valve 41 1 ends link to each other with the 66 pipeline 66, flow direction control valve 41 other ends link to each other by the 60 pipeline 60 between the high pressure node 71 of the 3rd heat exchanger 8 ports of export, the 3rd heat exchanger 8 arrival ends, the 59 pipeline 59 and compressing mechanism 1 port of export and cross valve 2 successively, the first check valve 21 arrival ends link to each other with the 61 pipeline 61, and the first check valve 21 ports of export link to each other with the 3rd heat exchanger 8 arrival end pipelines.

In this improvement project, flow direction control valve 41 can adopt throttle mechanism with turn-off function (for example: electric expansion valve) or flow control device.In the course of work, by to flowing to the control of control valve 41, this improvement project also can realize the function of the present embodiment scheme shown in Figure 8.

Embodiment 10

Embodiment 1 scheme shown in Figure 1, by in system, increasing an oil eliminator 90, can do further improvement, at this moment, the connected mode of oil eliminator 90 in system is: oil eliminator 90 arrival ends link to each other with compressing mechanism 1 port of export, and oil eliminator 90 ports of export link to each other with the 60 pipeline 60.During work, the effect of oil eliminator 90 is oil to be carried out in the exhaust of compressing mechanism 1 separate.The above scheme of the present embodiment is applicable to the described scheme of all embodiment of the present invention.

Embodiment 11

Embodiment 1 scheme shown in Figure 1, by in system, increasing a gas-liquid separator 91, can do further improvement, at this moment, the connected mode of gas-liquid separator 91 in system is: gas-liquid separator 91 ports of export link to each other with compressing mechanism 1 arrival end, and gas-liquid separator 91 arrival ends link to each other with the 63 pipeline 63.During work, the effect of gas-liquid separator 91 is separate compressors structure 1 refrigerant liquids in air-breathing, avoids producing liquid hammer.

The above scheme of the present embodiment is applicable to the described scheme of all embodiment of the present invention.

In all schemes of the above embodiment of the present invention, described flow direction control valve 41 can adopt magnetic valve, has the throttle mechanism of turn-off function that (for example: any one electric expansion valve) or in the flow control device substitutes; Compressing mechanism 1 is except can adopting the single stage compress that is comprised of at least one compressor, also can adopt by at least one low-pressure stage compressor and at least one the Two-stage Compression that the hiigh pressure stage compressor forms, at this moment, low-pressure stage suction port of compressor end links to each other with cross valve 2 low pressure nodes 73 by the 63 pipeline 63, the low-pressure stage compressor outlet links to each other with the 60 pipeline 60 by hiigh pressure stage suction port of compressor end, hiigh pressure stage compressor outlet successively, can certainly adopt the single machine compression with double stage mode that is comprised of at least one compressor.

In the above low-pressure stage compressor, the hiigh pressure stage compressor any one or two whiles, can adopt in the following compressor any one: piston compressor, screw compressor, helical-lobe compressor, rolling rotor compressor, sliding-vane compressor, rotary blade type compressor, centrifugal compressor, digital scroll compressor; In low-pressure stage compressor, the hiigh pressure stage compressor any one or two whiles, also can be variable conpacitance compressor (for example: frequency-changeable compressor, digital scroll compressor), or constant speed compressor.

In the scheme of above-mentioned all embodiment of the present invention, compressing mechanism 1 can adopt any one in the following compressor: piston compressor, screw compressor, helical-lobe compressor, rolling rotor compressor, sliding-vane compressor, rotary blade type compressor, centrifugal compressor, digital scroll compressor; Compressing mechanism 1 also can be variable conpacitance compressor (for example: frequency-changeable compressor, digital scroll compressor), or constant speed compressor; The compressor bank that compressing mechanism 1 can also be comprised of at least one variable conpacitance compressor, or the compressor bank that is formed by at least one constant speed compressor; In addition, compressing mechanism 1 also can be at least one variable conpacitance compressor and at least one the compressor bank that constant speed compressor forms.

In above-mentioned all the embodiment schemes of the present invention, any one even all throttle mechanisms in first throttle mechanism 5, the second throttle mechanism 7, the 3rd throttle mechanism 6 all are the throttle mechanisms with turn-off function, for example: electric expansion valve.

In above-mentioned all the embodiment schemes of the present invention, also can adopt magnetic valve, (for example: any one electric expansion valve) or in the flow control device substitutes one or more even all check valves in described first check valve 21, the second check valve 22, the 3rd check valve 23, the 4th check valve 24 and the 5th check valve 25 to have the throttle mechanism of turn-off function.

In the scheme of above-mentioned all embodiment of the present invention, First Heat Exchanger 3 also can be the heat exchanger of cold-producing medium-water-to-water heat exchanger or other kind except being cold-producing medium-air heat exchanger; During as cold-producing medium-water-to-water heat exchanger, First Heat Exchanger 3 adopts any one in volumetric heat exchangers, plate type heat exchanger, shell and tube exchanger or the double pipe heat exchanger usually.The second heat exchanger 4 is except can being cold-producing medium-air heat exchanger, also can be cold-producing medium-soil heat exchanger, cold-producing medium-water-to-water heat exchanger, also can be evaporating heat exchanger, can also be solar thermal collector, in addition, also can be the heat exchanger of other kind; During as cold-producing medium-water-to-water heat exchanger, the second heat exchanger 4 adopts any one in volumetric heat exchangers, plate type heat exchanger, shell and tube exchanger or the double pipe heat exchanger usually.

The 3rd heat exchanger 8 be except can being cold-producing medium-water-to-water heat exchanger, and the 3rd heat exchanger 8 also can be cold-producing medium-air heat exchanger, solution heater or solution regenerator or according to the heat exchanger of other kind of using needs; During as cold-producing medium-water-to-water heat exchanger, the 3rd heat exchanger 8 adopts any one in volumetric heat exchangers, plate type heat exchanger, shell and tube exchanger or the double pipe heat exchanger usually, or the heat exchanger of other kind as required.

In First Heat Exchanger 3, the second heat exchanger 4 or the 3rd heat exchanger 8 any one is during as cold-producing medium-air heat exchanger, usually adopt finned heat exchanger, the fin of described finned heat exchanger is generally the aluminum or aluminum alloy material, also uses copper material in some special occasions.That the shape of fin usually adopts is plate, in ripple type or the slitted fin type any one.

In the described scheme of above-mentioned all embodiment of the present invention, described pipeline all is copper pipe.

In the described scheme of above-mentioned all embodiment of the present invention, the 3rd heat exchanger 8, hot water heater 30, heating system 40, water circulating pump 50, connected mode between the electric T-shaped valve 80 5 is: any one in 80 two the straight-through connected nodes of any one and electric T-shaped valve in two connected nodes of the 3rd heat exchanger 8 hot water sides links to each other, the straight-through connected node of another of electric T-shaped valve 80 passes through heating system 40 successively, water circulating pump 50 suction sides, water circulating pump 50 extrudes end and links to each other with another connected node of the 3rd heat exchanger 8 hot water sides, and the bypass connected node of electric T-shaped valve 80 links to each other with water circulating pump 50 suction side pipelines by hot water heater 30.

In the course of work, need the simultaneously double hot water function of producing of refrigeration for the user that presses among the embodiment of the invention 2, the embodiment 6, when compressing mechanism 1 is when adopting variable conpacitance compressor (for example: frequency-changeable compressor, digital scroll compressor), following four kinds of progress control methods to be arranged.

Scheme one: First Heat Exchanger 3, the second heat exchanger 4 all are the cold-producing medium water-to-water heat exchanger; First Heat Exchanger 3 is for the production of chilled water; The second heat exchanger 4 is used for from the cooling water draw heat.

The control method of scheme one is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The second throttle mechanism 7 is used for the outlet water temperature of control First Heat Exchanger 3 chilled water sides, that is: when First Heat Exchanger 3 chilled water outlet water temperatures are higher than setting value, the aperture of the second throttle mechanism 7 reduces, when First Heat Exchanger 3 chilled water outlet water temperatures were lower than setting value, the aperture of the second throttle mechanism 7 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the cooling water flow of the second heat exchanger 4 cooling water sides, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the cooling water flow by the second heat exchanger 4 cooling water sides, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, increase the cooling water flow by the second heat exchanger 4 cooling water sides.

Scheme two: First Heat Exchanger 3 is cold-producing medium--water-to-water heat exchanger, for the production of chilled water; The second heat exchanger 4 is cold-producing medium-air heat exchanger, is used for from the air draw heat.

The control method of scheme two is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The second throttle mechanism 7 is used for the outlet water temperature of control First Heat Exchanger 3 chilled water sides, that is: when First Heat Exchanger 3 chilled water outlet water temperatures are higher than setting value, the aperture of the second throttle mechanism 7 reduces, when First Heat Exchanger 3 chilled water outlet water temperatures were lower than setting value, the aperture of the second throttle mechanism 7 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the air mass flow of the second heat exchanger 4 air side, conventional method is: the fan operation frequency by regulating the second heat exchanger 4 air side is to controlling by the air mass flow of the second heat exchanger 4 air side, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the fan operation frequency of the second heat exchanger 4 air side, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, improve the fan operation frequency of the second heat exchanger 4 air side.

Scheme three: First Heat Exchanger 3 is cold-producing medium-air heat exchanger, is used for cooling-air; The second heat exchanger 4 is cold-producing medium--water-to-water heat exchanger, is used for from the cooling water draw heat.

The control method of scheme three is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The second throttle mechanism 7 is used for outlet air temperature or the intake air temperature of control First Heat Exchanger 3 air side, that is: when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature are higher than setting value, the aperture of the second throttle mechanism 7 reduces, when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature were lower than setting value, the aperture of the second throttle mechanism 7 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the cooling water flow of the second heat exchanger 4 cooling water sides, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the cooling water flow by the second heat exchanger 4 cooling water sides, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, increase the cooling water flow by the second heat exchanger 4 cooling water sides.

Scheme four: First Heat Exchanger 3, the second heat exchanger 4 all are cold-producing medium-air heat exchanger; First Heat Exchanger 3 is used for cooling-air; The second heat exchanger 4 is used for from the air draw heat.

The control method of scheme four is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The second throttle mechanism 7 is used for outlet air temperature or the intake air temperature of control First Heat Exchanger 3 air side, that is: when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature are higher than setting value, the aperture of the second throttle mechanism 7 reduces, when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature were lower than setting value, the aperture of the second throttle mechanism 7 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the air mass flow of the second heat exchanger 4 air side, conventional method is: the fan operation frequency by regulating the second heat exchanger 4 air side is to controlling by the air mass flow of the second heat exchanger 4 air side, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the fan operation frequency of the second heat exchanger 4 air side, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, improve the fan operation frequency of the second heat exchanger 4 air side.

In the course of work, need the simultaneously double hot water function of producing of refrigeration for the user that presses among the embodiment of the invention 8, the embodiment 9, when compressing mechanism 1 is when adopting variable conpacitance compressor (for example: frequency-changeable compressor, digital scroll compressor), following four kinds of progress control methods to be arranged also.

Scheme one: First Heat Exchanger 3, the second heat exchanger 4 all are cold-producing medium--water-to-water heat exchanger; First Heat Exchanger 3 is for the production of chilled water; The second heat exchanger 4 is used for from the cooling water draw heat.

The control method of scheme one is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The 3rd throttle mechanism 6 is used for the outlet water temperature of control First Heat Exchanger 3 chilled water sides, that is: when First Heat Exchanger 3 chilled water outlet water temperatures are higher than setting value, the aperture of the 3rd throttle mechanism 6 reduces, when First Heat Exchanger 3 chilled water outlet water temperatures were lower than setting value, the aperture of the 3rd throttle mechanism 6 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the cooling water flow of the second heat exchanger 4 cooling water sides, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the cooling water flow by the second heat exchanger 4 cooling water sides, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, increase the cooling water flow by the second heat exchanger 4 cooling water sides.

The control method of scheme two is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The 3rd throttle mechanism 6 is used for the outlet water temperature of control First Heat Exchanger 3 chilled water sides, that is: when First Heat Exchanger 3 chilled water outlet water temperatures are higher than setting value, the aperture of the 3rd throttle mechanism 6 reduces, when First Heat Exchanger 3 chilled water outlet water temperatures were lower than setting value, the aperture of the 3rd throttle mechanism 6 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the air mass flow of the second heat exchanger 4 air side, conventional method is: the fan operation frequency by regulating the second heat exchanger 4 air side is to controlling by the air mass flow of the second heat exchanger 4 air side, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the fan operation frequency of the second heat exchanger 4 air side, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, improve the fan operation frequency of the second heat exchanger 4 air side.

The control method of scheme three is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The 3rd throttle mechanism 6 is used for outlet air temperature or the intake air temperature of control First Heat Exchanger 3 air side, that is: when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature are higher than setting value, the aperture of the 3rd throttle mechanism 6 reduces, when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature were lower than setting value, the aperture of the 3rd throttle mechanism 6 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the cooling water flow of the second heat exchanger 4 cooling water sides, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the cooling water flow by the second heat exchanger 4 cooling water sides, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, increase the cooling water flow by the second heat exchanger 4 cooling water sides.

The control method of scheme four is as follows: the refrigerant flow that utilizes outlet water temperature control compressing mechanism 1 output of the 3rd heat exchanger 8 hot water sides, that is: for frequency-changeable compressor, utilize the running frequency of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides, for digital scroll compressor, utilize the load time length of the outlet water temperature control compressing mechanism 1 of the 3rd heat exchanger 8 hot water sides; First throttle mechanism 5 regulates its aperture according to the degree of superheat of First Heat Exchanger 3 refrigerant sides outlet cold-producing medium; The 3rd throttle mechanism 6 is used for outlet air temperature or the intake air temperature of control First Heat Exchanger 3 air side, that is: when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature are higher than setting value, the aperture of the 3rd throttle mechanism 6 reduces, when the outlet air temperature of First Heat Exchanger 3 air side or intake air temperature were lower than setting value, the aperture of the 3rd throttle mechanism 6 increased; Utilize the degree of superheat control of the second heat exchanger 4 refrigerant sides outlet cold-producing medium by the air mass flow of the second heat exchanger 4 air side, conventional method is: the fan operation frequency by regulating the second heat exchanger 4 air side is to controlling by the air mass flow of the second heat exchanger 4 air side, that is: when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is higher than setting value, reduce the fan operation frequency of the second heat exchanger 4 air side, when the degree of superheat of the second heat exchanger 4 refrigerant sides outlet cold-producing medium is lower than setting value, improve the fan operation frequency of the second heat exchanger 4 air side.

Claims

1. operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the second throttle mechanism (7), the 3rd heat exchanger (8), the first check valve (21) and the second check valve (22); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (74) in (2) two commutations of cross valve node is successively by the 64 pipeline (64), the second check valve (22) port of export, the second check valve (22) arrival end, the 70 pipeline (70), the second heat exchanger (4), the second throttle mechanism (7), the 68 pipeline (68), the 3rd heat exchanger (8), the 59 pipeline (59) links to each other with the high pressure node (71) of described cross valve (2) and the 60 pipeline (60) between compressing mechanism (1) port of export, described first throttle mechanism (5) one ends link to each other with the 70 pipeline (70) between the second check valve (22) arrival end and the second heat exchanger (4) by the 66 pipeline (66), and described first throttle mechanism (5) other end passes through First Heat Exchanger (3) successively, the first check valve (21) arrival end, the first check valve (21) port of export, the 61 pipeline (61) links to each other with another commutation node (72) of cross valve (2).

2. operation of air conditioning systems according to claim 1, it is characterized in that the 3rd check valve (23) arrival end links to each other with the 70 pipeline (70) by the 66 pipeline (66), described the 3rd check valve (23) port of export links to each other with First Heat Exchanger (3) by first throttle mechanism (5); Flow direction control valve (41) one ends link to each other with the 68 pipeline (68) between the 3rd heat exchanger (8) and the second throttle mechanism (7) by the 62 pipeline (62), and described flow direction control valve (41) other end passes through the 69 pipeline (69) and links to each other with pipeline between described first throttle mechanism (5) and the 3rd check valve (23) port of export; The 65 pipeline (65) one ends link to each other with the 63 pipeline (63) between described compressing mechanism (1) arrival end and cross valve (2) the low pressure node (73), and described the 65 pipeline (65) other end links to each other with pipeline between described First Heat Exchanger (3) and the first check valve (21) arrival end.

3. operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the second throttle mechanism (7), the 3rd heat exchanger (8), the second check valve (22), the 4th check valve (24) and the 5th check valve (25); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (72) in (2) two commutations of cross valve node is successively by the 61 pipeline (61), the 5th check valve (25) port of export, the 5th check valve (25) arrival end, the 66 pipeline (66), first throttle mechanism (5), First Heat Exchanger (3), the 63 pipeline (63) between the low pressure node (73) of the 65 pipeline (65) and compressing mechanism (1) arrival end and cross valve (2) links to each other, another commutation node (74) of described cross valve (2) is successively by the 64 pipeline (64), the 4th check valve (24) arrival end, the 4th check valve (24) port of export, the 59 pipeline (59), the 3rd heat exchanger (8), the 68 pipeline (68), the second throttle mechanism (7), the second heat exchanger (4), the 70 pipeline (70) links to each other with the 66 pipeline (66) between described first throttle mechanism (5) and the 5th check valve (25) arrival end, the 61 pipeline (61) between described the second check valve (22) arrival end and the 5th check valve (25) port of export and cross valve (2) the commutation node links to each other, and the second check valve (22) port of export links to each other with the 59 pipeline (59) between the 4th check valve (24) port of export and the 3rd heat exchanger (8).

4. operation of air conditioning systems according to claim 3, it is characterized in that the 3rd check valve (23) arrival end links to each other with the 66 pipeline (66), described the 3rd check valve (23) port of export links to each other with First Heat Exchanger (3) by first throttle mechanism (5); Flow direction control valve (41) one ends link to each other with the 68 pipeline (68) between the 3rd heat exchanger (8) and the second throttle mechanism (7) by the 62 pipeline (62), and described flow direction control valve (41) other end passes through the 69 pipeline (69) and links to each other with pipeline between described first throttle mechanism (5) and the 3rd check valve (23) port of export.

5. operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the second throttle mechanism (7), the 3rd throttle mechanism (6), the 3rd heat exchanger (8), the first check valve (21) and the second check valve (22); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (74) in (2) two commutations of cross valve node is successively by the 64 pipeline (64), the second heat exchanger (4), the 3rd throttle mechanism (6), the 57 pipeline (57), the 52 pipeline (52), the second throttle mechanism (7), the 3rd heat exchanger (8), the 51 pipeline (51), the first check valve (21) port of export, the first check valve (21) arrival end, the 61 pipeline (61) links to each other with another commutation node (72) of cross valve (2), described the second check valve (22) arrival end links to each other with the 64 pipeline (64) by the 62 pipeline (62), described the second check valve (22) port of export links to each other with the 51 pipeline (51) between the first check valve (21) port of export and the 3rd heat exchanger (8), described First Heat Exchanger (3) one ends link to each other by the 63 pipeline (63) between the low pressure node (73) of the 65 pipeline (65) and described compressing mechanism (1) arrival end and cross valve (2), and described First Heat Exchanger (3) other end passes through first throttle mechanism (5) successively, the 58 pipeline (58) links to each other with pipeline between the second throttle mechanism (7) and the 3rd throttle mechanism (6).

6. operation of air conditioning systems according to claim 5, it is characterized in that described first throttle mechanism (5) one ends link to each other with First Heat Exchanger (3), described first throttle mechanism (5) other end links to each other with liquid reservoir (9) by the 58 pipeline (58), described the 3rd throttle mechanism (6) one ends link to each other with the second heat exchanger (4), described the 3rd throttle mechanism (6) other end links to each other with described liquid reservoir (9) by the 57 pipeline (57), described the second throttle mechanism (7) one ends link to each other with the 3rd heat exchanger (8), and described the second throttle mechanism (7) other end is by the 52 pipeline (52) and described the 57 pipeline (57), any place in the 58 pipeline (58) or the liquid reservoir (9) links to each other.

7. operation of air conditioning systems, comprise compressing mechanism (1), cross valve (2), First Heat Exchanger (3), the second heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises the 3rd throttle mechanism (6), the 3rd heat exchanger (8) and the first check valve (21); The high pressure node (71) of described cross valve (2) links to each other with compressing mechanism (1) port of export by the 60 pipeline (60), the low pressure node (73) of cross valve (2) links to each other with compressing mechanism (1) arrival end by the 63 pipeline (63), any one node (74) in (2) two commutations of cross valve node is successively by the 64 pipeline (64), the second heat exchanger (4), the 3rd throttle mechanism (6), the 67 pipeline (67), the 70 pipe logical (70), first throttle mechanism (5), First Heat Exchanger (3), the 63 pipeline (63) between the low pressure node (73) of the 65 pipeline (65) and described compressing mechanism (1) arrival end and cross valve (2) links to each other, described the 3rd heat exchanger (8) arrival end links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and described compressing mechanism (1) port of export and cross valve (2), described First Heat Exchanger (3) port of export links to each other with pipeline between first throttle mechanism (5) and the 3rd throttle mechanism (6) by the 66 pipeline (66), described the first check valve (21) arrival end links to each other with another commutation node (72) of cross valve (2) by the 61 pipeline (61), and described the first check valve (21) port of export links to each other with described the 3rd heat exchanger (8) arrival end pipeline.

8. operation of air conditioning systems according to claim 7, it is characterized in that one flows to control valve (41) one ends and links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and described compressing mechanism (1) port of export and cross valve (2), described flow direction control valve (41) other end links to each other with the first check valve (21) port of export with the 3rd heat exchanger (8) arrival end.

9. operation of air conditioning systems according to claim 7 is characterized in that described the 3rd heat exchanger (8) port of export flows to control valve (41) by one and links to each other with the 66 pipeline (66).

10. according to claim 1 or 3 described operation of air conditioning systems, it is characterized in that described first throttle mechanism (5) one ends link to each other with First Heat Exchanger (3), described first throttle mechanism (5) other end links to each other with liquid reservoir (9), the 3rd check valve (23) arrival end links to each other with the 66 pipeline (66), described the 3rd check valve (23) port of export links to each other with described liquid reservoir (9), described flow direction control valve (41) one ends link to each other with the 68 pipeline (68) between described the 3rd heat exchanger (8) and the second throttle mechanism (7) by the 62 pipeline (62), and described flow direction control valve (41) other end passes through the 69 pipeline (69) and links to each other with described liquid reservoir (9).