CN102853594A - Refrigeration equipment for air conditioner - Google Patents
Refrigeration equipment for air conditioner Download PDFInfo
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- CN102853594A CN102853594A CN 201210381271 CN201210381271A CN102853594A CN 102853594 A CN102853594 A CN 102853594A CN 201210381271 CN201210381271 CN 201210381271 CN 201210381271 A CN201210381271 A CN 201210381271A CN 102853594 A CN102853594 A CN 102853594A
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Abstract
The invention discloses refrigeration equipment for an air conditioner. The refrigeration equipment comprises a compression mechanism, a first four-way valve, a second four-way valve, a first heat exchanger, a second heat exchanger, a third heat exchanger, a first throttling mechanism, a second throttling mechanism, a third throttling mechanism, a first one-way valve and a second one-way valve. A low-pressure node of the first four-way valve is connected with a low-pressure node of the second four-way valve through a 65th pipeline; a high-pressure node of the first four-way valve is sequentially connected with the 65th pipeline between the low-pressure node of the first four-way valve and the low-pressure node of the second four-way valve through a 60th pipeline, an outlet end of the compression mechanism and an inlet end of the compression mechanism; and a high-pressure node of the second four-way valve is connected with the 60th pipeline between the outlet end of the compression mechanism and the high-pressure node of the first four-way valve through a 59th pipeline. The refrigeration equipment has the advantages of simple structure, reliable working and low cost; and various functions, such as cold supply, heat supply and the like, can be realized in an all-year operation process simultaneously.
Description
Technical field
The present invention relates to a kind of operation of air conditioning systems with simultaneous air-conditioning function, belong to refrigeration technology field.
Background technology
The claim 3 that the present patent application people is disclosed on 07 06th, 2011, application number is 201110028741.7 patent of invention has proposed a kind of operation of air conditioning systems scheme, and its system forms as shown in Figure 4.From the specification of foregoing invention patent as can be known: scheme shown in Figure 4 serves many purposes, and namely can be multi-functional operation of air conditioning systems, is used for annual refrigeration being arranged, for the occasion of warm domestic hot-water's demand; Also can be the thermostatic and humidistatic air conditioning unit group for the treatment of air, be used for the annual occasion that refrigeration is arranged, supply warm dehumidifying demand.When scheme shown in Figure 4 is when playing the part of thermostatic and humidistatic air conditioning unit group role, its system forms as shown in Figure 5.
From the specification of Fig. 4, Fig. 5 and foregoing invention patent as can be known, no matter scheme shown in Figure 4 is to play the part of which type of role in actual use, in the course of work, the 3rd heat exchanger 8 can only use as condenser, and the second heat exchanger 4 can only use as evaporimeter, so in service, there are following defective in Fig. 4, scheme shown in Figure 5:
1) because the 3rd heat exchanger 8 can only use as condenser, therefore, under some operating mode, when First Heat Exchanger 3,4 work of the second heat exchanger, the 3rd heat exchanger 8 can only be in idle state, do not give full play on the one hand the exchange capability of heat of the 3rd heat exchanger 8, on the other hand because when the 3rd heat exchanger 8 is in idle state, the 3rd throttle mechanism 7 generally is in closed condition, therefore have part of refrigerant and be trapped in the 3rd heat exchanger 8, can cause adverse effect to the normal operation of operation of air conditioning systems in the serious situation.In addition, as shown in Figure 5, in the thermostatic and humidistatic air conditioning unit group, because the 3rd heat exchanger 8 is heaters of its air conditioner unit 10, therefore when First Heat Exchanger 3,4 normal operations of the second heat exchanger, and the 3rd heat exchanger 8 is when being in idle state, in air conditioner unit 10, when the cold air of being processed by the second heat exchanger 4 passes the 3rd heat exchanger 8, the high-temperature high-pressure refrigerant superheated steam that is trapped in the 3rd heat exchanger 8 can carry out heat exchange with cold air, and the consequence that causes is: the air dry-bulb temperature in air conditioner unit 10 exits can't be controlled effectively.
2) because the second heat exchanger 4 can only use as evaporimeter, therefore, under some operating mode, when First Heat Exchanger 3,8 work of the 3rd heat exchanger, the second heat exchanger 4 can only be in idle state, can not give full play to the exchange capability of heat of the second heat exchanger 4, can affect the service behaviour of whole unit.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can take full advantage of the heat exchanger exchange capability of heat, can avoid the delay of cold-producing medium in heat exchanger, and can in the whole year operation process, realize the operation of air conditioning systems of simultaneous air-conditioning.
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), the first cross valve (70), First Heat Exchanger (3), the second heat exchanger (4), the 3rd heat exchanger (8), first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7), the first check valve (21) and the second check valve (22), it is characterized in that: this operation of air conditioning systems also comprises the second cross valve (80); The low pressure node (73) of described the first cross valve (70) links to each other with the low pressure node (83) of described the second cross valve (80) by the 65 pipeline (65), the high pressure node (71) of described the first cross valve (70) is successively by the 60 pipeline (60), compressing mechanism (1) port of export, compressing mechanism (1) arrival end, the 65 pipeline (65) between the low pressure node (73) of the 63 pipeline (63) and described the first cross valve (70) and the low pressure node (83) of the second cross valve (80) links to each other, the high pressure node (81) of described the second cross valve (80) links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and compressing mechanism (1) port of export and the first cross valve (70), any one commutation node (84) in (80) two commutations of described the second cross valve node is successively by the 67 pipeline (67), the 3rd heat exchanger (8), the 3rd throttle mechanism (7), the 58 pipeline (58), the 57 pipeline (57), first throttle mechanism (5), First Heat Exchanger (3), any one commutation node (74) in (70) two commutations of the 64 pipeline (64) and described the first cross valve node links to each other, another commutation node (82) of described the second cross valve (80) is successively by the 66 pipeline (66), the second check valve (22) arrival end, the second check valve (22) port of export, the 69 pipeline (69) links to each other with the 64 pipeline (64), another commutation node (72) of described the first cross valve (70) is successively by the 61 pipeline (61), the first check valve (21) arrival end, the first check valve (21) port of export, the 68 pipeline (68) links to each other with the 67 pipeline (67), described the second heat exchanger (4) one ends are successively by the second throttle mechanism (6), the 52 pipeline (52) links to each other with pipeline between described first throttle mechanism (5) and the 3rd throttle mechanism (7), described the second heat exchanger (4) other end by the 51 pipeline (51) and described compressing mechanism (1) arrival end the 63 pipeline (63) or the 65 pipeline (65) between the low pressure node (83) of the low pressure node (73) of the first cross valve (70) and the second cross valve (80) link to each other.
2, a kind of operation of air conditioning systems, comprise compressing mechanism (1), the first cross valve (70), First Heat Exchanger (3), the second heat exchanger (4), the 3rd heat exchanger (8), first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7), the first check valve (21) and the second check valve (22), it is characterized in that: this operation of air conditioning systems also comprises the second cross valve (80); The low pressure node (73) of described the first cross valve (70) links to each other with the low pressure node (83) of described the second cross valve (80) by the 65 pipeline (65), the high pressure node (71) of described the first cross valve (70) is successively by the 60 pipeline (60), compressing mechanism (1) port of export, compressing mechanism (1) arrival end, the 65 pipeline (65) between the low pressure node (73) of the 63 pipeline (63) and described the first cross valve (70) and the low pressure node (83) of the second cross valve (80) links to each other, the high pressure node (81) of described the second cross valve (80) links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and compressing mechanism (1) port of export and the first cross valve (70), any one commutation node (84) in (80) two commutations of described the second cross valve node is successively by the 67 pipeline (67), the 3rd heat exchanger (8), the 3rd throttle mechanism (7), the 58 pipeline (58), the 57 pipeline (57), first throttle mechanism (5), First Heat Exchanger (3), any one commutation node (74) in (70) two commutations of the 64 pipeline (64) and described the first cross valve node links to each other, another commutation node (82) of described the second cross valve (80) is successively by the 66 pipeline (66), the second check valve (22) arrival end, the second check valve (22) port of export, the 69 pipeline (69) links to each other with the 64 pipeline (64), another commutation node (72) of described the first cross valve (70) is successively by the 61 pipeline (61), the first check valve (21) arrival end, the first check valve (21) port of export, the 68 pipeline (68) links to each other with the 67 pipeline (67), described the second heat exchanger (4) one ends are successively by the second throttle mechanism (6), the 52 pipeline (52) links to each other with pipeline between described first throttle mechanism (5) and the 3rd throttle mechanism (7), and described the second heat exchanger (4) other end links to each other with the 61 pipeline (61) of described the first check valve (21) arrival end by the 51 pipeline (51).
3, a kind of operation of air conditioning systems, comprise compressing mechanism (1), the first cross valve (70), First Heat Exchanger (3), the second heat exchanger (4), the 3rd heat exchanger (8), first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7), the first check valve (21) and the second check valve (22), it is characterized in that: this operation of air conditioning systems also comprises the second cross valve (80); The low pressure node (73) of described the first cross valve (70) links to each other with the low pressure node (83) of described the second cross valve (80) by the 65 pipeline (65), the high pressure node (71) of described the first cross valve (70) is successively by the 60 pipeline (60), compressing mechanism (1) port of export, compressing mechanism (1) arrival end, the 65 pipeline (65) between the low pressure node (73) of the 63 pipeline (63) and described the first cross valve (70) and the low pressure node (83) of the second cross valve (80) links to each other, the high pressure node (81) of described the second cross valve (80) links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and compressing mechanism (1) port of export and the first cross valve (70), any one commutation node (84) in (80) two commutations of described the second cross valve node is successively by the 67 pipeline (67), the 3rd heat exchanger (8), the 3rd throttle mechanism (7), the 58 pipeline (58), the 57 pipeline (57), first throttle mechanism (5), First Heat Exchanger (3), any one commutation node (74) in (70) two commutations of the 64 pipeline (64) and described the first cross valve node links to each other, another commutation node (82) of described the second cross valve (80) is successively by the 66 pipeline (66), the second check valve (22) arrival end, the second check valve (22) port of export, the 69 pipeline (69) links to each other with the 64 pipeline (64), another commutation node (72) of described the first cross valve (70) is successively by the 61 pipeline (61), the first check valve (21) arrival end, the first check valve (21) port of export, the 68 pipeline (68) links to each other with the 67 pipeline (67), described the second heat exchanger (4) one ends are successively by the second throttle mechanism (6), the 52 pipeline (52) links to each other with pipeline between described first throttle mechanism (5) and the 3rd throttle mechanism (7), and described the second heat exchanger (4) other end links to each other with the 66 pipeline (66) of described the second check valve (22) arrival end by the 51 pipeline (51).
The present invention compared with prior art, its beneficial effect is:
1. when operation, can take full advantage of the exchange capability of heat of heat exchanger, and can avoid the delay of cold-producing medium in heat exchanger;
2. can realize the several functions such as refrigeration, heating, simultaneous air-conditioning;
3. work is more stable, reliable;
4. the present invention is applicable to industry and civilian operation of air conditioning systems, is specially adapted to temperature and humidity is had the occasion of requirement.
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 prior art structural representation;
Fig. 5 is the prior art structural representation.
The specific embodiment
Below in conjunction with accompanying drawing content of the present invention is described in further detail.
As shown in Figure 1, present embodiment be a kind of can be to the temperature of air, the operation of air conditioning systems that humidity is controlled simultaneously, be used for annual refrigeration being arranged, for the occasion of warm dehumidifying demand.Whole equipment comprises following part: compressing mechanism 1, the first cross valve 70, the second cross valve 80, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7, First Heat Exchanger 3, the second heat exchanger 4, the 3rd heat exchanger 8, the first check valve 21 and the second check valve 22; First throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all are electric expansion valve.
The second heat exchanger 4, the 3rd heat exchanger 8 are arranged in the same air conditioner unit 10, and along the flow direction of air, the 3rd heat exchanger 8 is in the downwind side of the second heat exchanger 4; Two temperature-detecting devices are arranged, its set-up mode is: along the flow direction of air, the first temperature-detecting device 31 is arranged at the inlet side of the second heat exchanger 4, for detection of the second heat exchanger 4 intake air dry-bulb temperatures, the second temperature-detecting device 32 also is arranged at the inlet side of the second heat exchanger 4, for detection of the intake air wet-bulb temperature of the second heat exchanger 4.Air conditioner unit 10 handled air are indoor circulation air.
This operation of air conditioning systems can realize several functions in the whole year operation process.During work, First Heat Exchanger 3 is heat source side heat exchangers, and summer and spring and autumn distribute the condensation heat that produces in refrigeration or the dehumidification process as condenser to environment, and winter, absorbing heat from environment was used for adding hot-air as evaporimeter; The second heat exchanger 4 is the coolers in the air conditioner unit 10, can realize cooling or the dehumidifying of air; The 3rd heat exchanger 8 is heater or the coolers in the air conditioner unit 10, during as heater, can realize the heating of air or hot again, and the control wind pushing temperature during as cooler, can be realized cooling or the dehumidifying of air.Workflow under each function is as described below respectively.
(1) separate refrigeration function
Scheme one: in air conditioner unit 10,4 work of the second heat exchanger, the 3rd heat exchanger 8 is not worked
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by First Heat Exchanger 3, and 4 pairs of air of the second heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 standard-sized sheets, 6 normal operations of the second throttle mechanism, the 3rd throttle mechanism 7 cuts out.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, enters the 64 pipeline 64 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 69 pipeline 69, also enters the 64 pipeline 64; Two-way is after the 64 pipeline 64 mixes, pass through successively First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
Scheme two: in air conditioner unit 10, the second heat exchanger 4 is not worked, 8 work of the 3rd heat exchanger
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by First Heat Exchanger 3, and 8 pairs of air of the 3rd heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 standard-sized sheets, the second throttle mechanism 6 cuts out, 7 normal operations of the 3rd throttle mechanism.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, enters the 64 pipeline 64 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 69 pipeline 69, also enters the 64 pipeline 64; Two-way is after the 64 pipeline 64 mixes, successively through First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, the 58 pipeline 58, the 3rd throttle mechanism 7, the 3rd heat exchanger 8, the 67 pipeline 67, the second cross valve 80 commutation nodes 84, the second cross valve 80 low pressure nodes 83, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
Scheme three: in air conditioner unit 10, the second heat exchanger 4, the 3rd heat exchanger 8 are all worked
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by First Heat Exchanger 3, and the second heat exchanger 4,8 pairs of air of the 3rd heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 standard-sized sheets, the second throttle mechanism 6,7 normal operations of the 3rd throttle mechanism.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, enters the 64 pipeline 64 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 69 pipeline 69, also enters the 64 pipeline 64; Two-way passes through First Heat Exchanger 3, first throttle mechanism 5 successively after the 64 pipeline 64 mixes, enter the 57 pipeline 57 and be divided into again two-way; The first via through the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, enters the 63 pipeline 63 successively; The second the tunnel successively through the 58 pipeline 58, the 3rd throttle mechanism 7, the 3rd heat exchanger 8, the 67 pipeline 67, the second cross valve 80 commutation nodes 84, the second cross valve 80 low pressure nodes 83, 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, it is compressed to enter compressing mechanism 1, finishes once circulation.
(2) the refrigerated dehumidification again hot merit energy of air of holding concurrently
Under this function, 4 pairs of air of the second heat exchanger carry out cool-down dehumidification, and the condensation heat some that dehumidifying produces utilizes First Heat Exchanger 3 to enter environment, and another part is used for the again heat of air in the 3rd heat exchanger 8.
During work, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all work.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, the 64 pipeline 64, First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, enters the 52 pipeline 52 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, the 67 pipeline 67, the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, also enters the 52 pipeline 52; Two-way through the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 63 pipeline 63, is got back to compressing mechanism 1 arrival end successively after the 52 pipeline 52 mixes, it is compressed to enter compressing mechanism 1, finishes once circulation.
In the course of work, the control strategy of air conditioner unit 10 intake air dry-bulb temperatures is: the second heat exchanger 4 intake air dry-bulb temperatures that controller 30 detects according to the air conditioner unit 10 intake air dry-bulb temperatures of setting and the first temperature-detecting device 31, the aperture of control first throttle mechanism 5 and the 3rd throttle mechanism 7, regulate the refrigerant flow by First Heat Exchanger 3 and the 3rd heat exchanger 8, realize the control to air conditioner unit 10 intake air dry-bulb temperatures.
The concrete control method of 30 pairs of air conditioner units of controller, 10 intake air dry-bulb temperatures has following three kinds of modes: the aperture of 1) setting first throttle mechanism 5 is definite value, by regulating the aperture of the 3rd throttle mechanism 7, realizes the control to the intake air temperature; 2) aperture of setting the 3rd throttle mechanism 7 is definite value, by regulating the aperture of first throttle mechanism 5, realizes the control to the intake air temperature; 3) regulate simultaneously the aperture of first throttle mechanism 5 and the 3rd throttle mechanism 7, realize the control to the intake air temperature.
When compressing mechanism 1 is frequency-changeable compressor, in the course of work, the control strategy of air conditioner unit 10 intake air wet-bulb temperature is: the second heat exchanger 4 entrance actual air wet-bulb temperature that controller 30 detects according to the air conditioner unit 10 intake air wet-bulb temperature of setting and the second temperature-detecting device 32, the operating frequency of control compressing mechanism 1 realizes the control to air conditioner unit 10 intake air wet-bulb temperature.Concrete control procedure is: when the second heat exchanger 4 entrance actual air wet-bulb temperature that detect when the second temperature-detecting device 32 are lower than the air conditioner unit 10 intake air wet-bulb temperature of setting, reduce the operating frequency of compressing mechanism 1; When the second heat exchanger 4 entrance actual air wet-bulb temperature that detect when the second temperature-detecting device 32 are higher than the air conditioner unit 10 intake air wet-bulb temperature of setting, increase the operating frequency of compressing mechanism 1.
(3) winter air heating function
Under this function, First Heat Exchanger 3 draw heat from environment, the heat of drawing is used for the heating of air in the 3rd heat exchanger 8, and the second heat exchanger 4 is not worked.
During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 6 cuts out, the 3rd throttle mechanism 7 standard-sized sheets.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 68 pipeline 68, enters the 67 pipeline 67 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, also enter the 67 pipeline 67; Two-way is after the 67 pipeline 67 mixes, successively through the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, the 57 pipeline 57, first throttle mechanism 5, First Heat Exchanger 3, the 64 pipeline 64, the first cross valve 70 commutation nodes 74, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
(4) the double heating function of dehumidifying in winter
In this function, First Heat Exchanger 3 draw heat from environment, 4 pairs of air of the second heat exchanger carry out cool-down dehumidification, and the condensation heat that dehumidifying produces and the heat of drawing from environment all are used for the heating of air in the 3rd heat exchanger 8.
During work, first throttle mechanism 5,6 normal operations of the second throttle mechanism, the 3rd throttle mechanism 7 standard-sized sheets.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 68 pipeline 68, enters the 67 pipeline 67 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, also enter the 67 pipeline 67; Two-way through the 3rd heat exchanger 8, the 3rd throttle mechanism 7, enters the 58 pipeline 58 and is divided into again two-way successively after the 67 pipeline 67 mixes; The first via through the 57 pipeline 57, first throttle mechanism 5, First Heat Exchanger 3, the 64 pipeline 64, the first cross valve 70 commutation nodes 74, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, enters the 63 pipeline 63 successively; Another road through the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, also enters the 63 pipeline 63 successively; Two-way is got back to compressing mechanism 1 arrival end after the 63 pipeline 63 mixes, it is compressed to enter compressing mechanism 1, finishes once circulation.
(5) winter frost removing function
Under this function, 4 pairs of room airs of the second heat exchanger carry out cool-down dehumidification, and the condensation heat part that dehumidifying produces is used for the defrosting of First Heat Exchanger 3, and another part is used for the again heat of air in the 3rd heat exchanger 8.
During work, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all work; First throttle mechanism 5 and the 3rd throttle mechanism 7 are respectively applied to regulate the refrigerant vapour flow by First Heat Exchanger 3 and the 3rd heat exchanger 8, and the second throttle mechanism 6 is used for the throttling of refrigerant liquid.Its workflow is held concurrently with refrigerated dehumidification, and hot merit can be identical again for air.
In scheme shown in Figure 1, the connectivity scenario of the second heat exchanger 4 in system is: the second heat exchanger 4 one ends link to each other with pipeline between first throttle mechanism 5 and the 3rd throttle mechanism 7 by the second throttle mechanism 6, the 52 pipeline 52 successively, and the second heat exchanger 4 other ends pass through the 51 pipeline 51 and link to each other with the 63 pipeline 63 of compressing mechanism 1 arrival end.
Except such scheme, the second heat exchanger 4 also has following connectivity scenario in system: the second heat exchanger 4 one ends link to each other with pipeline between first throttle mechanism 5 and the 3rd throttle mechanism 7 by the second throttle mechanism 6, the 52 pipeline 52 successively, and the second heat exchanger 4 other ends pass through the 51 pipeline 51 and link to each other with the 65 pipeline 65 between the first cross valve 70 low pressure nodes 73 and the second cross valve 80 low pressure nodes 83.
As shown in Figure 2, present embodiment also be a kind of can be to the temperature of air, the operation of air conditioning systems that humidity is controlled simultaneously, be used for annual refrigeration being arranged, for the occasion of warm dehumidifying demand.Scheme shown in Figure 2 from the difference of scheme shown in Figure 1 is: the connectivity scenario of the second heat exchanger 4 in system is different.In scheme shown in Figure 2, the connectivity scenario of the second heat exchanger 4 in system is: the second heat exchanger 4 one ends link to each other with pipeline between first throttle mechanism 5 and the 3rd throttle mechanism 7 by the second throttle mechanism 6, the 52 pipeline 52 successively, and the second heat exchanger 4 other ends pass through the 51 pipeline 51 and link to each other with the 61 pipeline 61 of the first check valve 21 arrival ends.
Whole equipment shown in Figure 2 comprises following part: compressing mechanism 1, the first cross valve 70, the second cross valve 80, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7, First Heat Exchanger 3, the second heat exchanger 4, the 3rd heat exchanger 8, the first check valve 21 and the second check valve 22; First throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all are electric expansion valve.
The second heat exchanger 4, the 3rd heat exchanger 8 are arranged in the same air conditioner unit 10, and along the flow direction of air, the 3rd heat exchanger 8 is in the downwind side of the second heat exchanger 4; Two temperature-detecting devices are arranged, its set-up mode is: along the flow direction of air, the first temperature-detecting device 31 is arranged at the inlet side of the second heat exchanger 4, for detection of the second heat exchanger 4 intake air dry-bulb temperatures, the second temperature-detecting device 32 also is arranged at the inlet side of the second heat exchanger 4, for detection of the intake air wet-bulb temperature of the second heat exchanger 4.Air conditioner unit 10 handled air are indoor circulation air.
This operation of air conditioning systems can realize several functions in the whole year operation process.During work, First Heat Exchanger 3 is heat source side heat exchangers, and summer and spring and autumn distribute the condensation heat that produces in refrigeration or the dehumidification process as condenser to environment, and winter, absorbing heat from environment was used for adding hot-air as evaporimeter.
The second heat exchanger 4 is cooler or the heaters in the air conditioner unit 10, and during as cooler, summer or transition season can be realized cooling or the dehumidifying of air; During as heater, can realize the heating of air winter.
The 3rd heat exchanger 8 is heater or the coolers in the air conditioner unit 10, during as heater, can realize the heating of air or hot again, and the control wind pushing temperature during as cooler, can be realized cooling or the dehumidifying of air.Workflow under each function is as described below respectively.
(1) separate refrigeration function
Scheme one: in air conditioner unit 10,4 work of the second heat exchanger, the 3rd heat exchanger 8 is not worked
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by First Heat Exchanger 3, and 4 pairs of air of the second heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 standard-sized sheets, 6 normal operations of the second throttle mechanism, the 3rd throttle mechanism 7 cuts out.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, enters the 64 pipeline 64 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 69 pipeline 69, also enters the 64 pipeline 64; Two-way is after the 64 pipeline 64 mixes, successively through First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 61 pipeline 61, the first cross valve 70 commutation nodes 72, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
Scheme two: in air conditioner unit 10, the second heat exchanger 4 is not worked, 8 work of the 3rd heat exchanger
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by First Heat Exchanger 3, and 8 pairs of air of the 3rd heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 standard-sized sheets, the second throttle mechanism 6 cuts out, 7 normal operations of the 3rd throttle mechanism.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, enters the 64 pipeline 64 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 69 pipeline 69, also enters the 64 pipeline 64; Two-way is after the 64 pipeline 64 mixes, successively through First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, the 58 pipeline 58, the 3rd throttle mechanism 7, the 3rd heat exchanger 8, the 67 pipeline 67, the second cross valve 80 commutation nodes 84, the second cross valve 80 low pressure nodes 83, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
Scheme three: in air conditioner unit 10, the second heat exchanger 4, the 3rd heat exchanger 8 are all worked
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by First Heat Exchanger 3, and the second heat exchanger 4,8 pairs of air of the 3rd heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 standard-sized sheets, the second throttle mechanism 6,7 normal operations of the 3rd throttle mechanism.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, enters the 64 pipeline 64 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 69 pipeline 69, also enters the 64 pipeline 64; Two-way passes through First Heat Exchanger 3, first throttle mechanism 5 successively after the 64 pipeline 64 mixes, enter the 57 pipeline 57 and be divided into again two-way; The first via through the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 61 pipeline 61, the first cross valve 70 commutation nodes 72, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, enters the 63 pipeline 63 successively; The second the tunnel successively through the 58 pipeline 58, the 3rd throttle mechanism 7, the 3rd heat exchanger 8, the 67 pipeline 67, the second cross valve 80 commutation nodes 84, the second cross valve 80 low pressure nodes 83, 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, it is compressed to enter compressing mechanism 1, finishes once circulation.
(2) the refrigerated dehumidification again hot merit energy of air of holding concurrently
Under this function, 4 pairs of air of the second heat exchanger carry out cool-down dehumidification, and the condensation heat some that dehumidifying produces utilizes First Heat Exchanger 3 to enter environment, and another part is used for the again heat of air in the 3rd heat exchanger 8.
During work, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all work.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, the 64 pipeline 64, First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, enters the 52 pipeline 52 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, the 67 pipeline 67, the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, also enters the 52 pipeline 52; Two-way is after the 52 pipeline 52 mixes, successively through the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 61 pipeline 61, the first cross valve 70 commutation nodes 72, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
In the course of work, the adjusting control strategy of air conditioner unit 10 intake air dry-bulb temperatures, wet-bulb temperature is identical with embodiment 1.
(3) winter air heating function
Under this function, First Heat Exchanger 3 draw heat from environment, the heat of drawing is used for the heating of air in the second heat exchanger 4, the 3rd heat exchanger 8.
During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 6, the 3rd throttle mechanism 7 be standard-sized sheet all.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 72, the 61 pipeline 61, the 51 pipeline 51, the second heat exchanger 4, the second throttle mechanism 6, the 52 pipeline 52, enters the 57 pipeline 57 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, the 67 pipeline 67, the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, also enters the 57 pipeline 57; Two-way is after the 57 pipeline 57 mixes, successively through first throttle mechanism 5, First Heat Exchanger 3, the 64 pipeline 64, the first cross valve 70 commutation nodes 74, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
(4) winter frost removing function
Under this function, 4 pairs of room airs of the second heat exchanger carry out cool-down dehumidification, a part of defrosting that is used for First Heat Exchanger 3 of the condensation heat that dehumidifying produces, and another part is used for the again heat of air in the 3rd heat exchanger 8.
During work, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all work.Its workflow is held concurrently with refrigerated dehumidification, and hot merit can be identical again for air.
Under this function, in order reasonably to regulate the refrigerant flow by First Heat Exchanger 3 and the 3rd heat exchanger 8, realization is to the control of air conditioner unit 10 outlet air dry-bulb temperatures, simultaneously First Heat Exchanger 3 is carried out defrost, establish the 3rd temperature-detecting device 33 in air conditioner unit 10 exits, for detection of the air dry-bulb temperature in air conditioner unit 10 exits.
Control strategy in the course of work is: the 3rd heat exchanger 8 outlet air dry-bulb temperatures that controller 30 detects according to the air conditioner unit 10 outlet air dry-bulb temperatures of setting and the 3rd temperature-detecting device 33, the aperture of control first throttle mechanism 5 and the 3rd throttle mechanism 7, regulate respectively the refrigerant flow by First Heat Exchanger 3 and the 3rd heat exchanger 8, realize the control to air conditioner unit 10 outlet air dry-bulb temperatures.Generally, the air conditioner unit 10 outlet air dry-bulb temperatures of setting generally are not less than 37 ℃.
Particularly, under this function, the control method of 30 pairs of air conditioner unit 10 outlet air dry-bulb temperatures of controller has following three kinds of modes: the aperture of 1) setting first throttle mechanism 5 is definite value, by regulating the aperture of the 3rd throttle mechanism 7, realizes the control to outlet air dry-bulb temperature; 2) aperture of setting the 3rd throttle mechanism 7 is definite value, by regulating the aperture of first throttle mechanism 5, realizes the control to outlet air dry-bulb temperature; 3) regulate simultaneously the aperture of first throttle mechanism 5 and the 3rd throttle mechanism 7, realize the control to outlet air dry-bulb temperature.
In addition, when compressing mechanism 1 was frequency-changeable compressor, in the course of work, under this function, the frequency of compressing mechanism 1 had following two kinds of adjustment control methods: the frequency of 1) setting compressing mechanism 1 is a fixed value.2) in defrost process, utilize the intake air wet-bulb temperature of 1 pair of air conditioner unit 10 of compressing mechanism to control, its control strategy is: the second heat exchanger 4 entrance actual air wet-bulb temperature that controller 30 detects according to the air conditioner unit 10 intake air wet-bulb temperature of setting and the second temperature-detecting device 32, the operating frequency of control compressing mechanism 1 realizes the control to air conditioner unit 10 intake air wet-bulb temperature.Concrete control procedure is: when the second heat exchanger 4 entrance actual air wet-bulb temperature that detect when the second temperature-detecting device 32 are lower than the air conditioner unit 10 intake air wet-bulb temperature of setting, reduce the operating frequency of compressing mechanism 1; When the second heat exchanger 4 entrance actual air wet-bulb temperature that detect when the second temperature-detecting device 32 are higher than the air conditioner unit 10 intake air wet-bulb temperature of setting, increase the operating frequency of compressing mechanism 1.
Control method under the above-described winter frost removing function also is applicable to other embodiment among the present invention.
As shown in Figure 3, present embodiment also be a kind of can be to the temperature of air, the operation of air conditioning systems that humidity is controlled simultaneously, be used for annual refrigeration being arranged, for the occasion of warm dehumidifying demand.Whole equipment comprises following part: compressing mechanism 1, the first cross valve 70, the second cross valve 80, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7, First Heat Exchanger 3, the second heat exchanger 4, the 3rd heat exchanger 8, the first check valve 21 and the second check valve 22; First throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all are electric expansion valve.
This operation of air conditioning systems can realize several functions in the whole year operation process.During work, the 3rd heat exchanger 8 is heat source side heat exchangers, and summer and spring and autumn distribute the condensation heat that produces in refrigeration or the dehumidification process as condenser to environment, and winter, absorbing heat from environment was used for adding hot-air as evaporimeter.
The second heat exchanger 4 is cooler or the heaters in the air conditioner unit 10, and during as cooler, summer and transition season can be realized cooling or the dehumidifying of air; During as heater, can realize the heating of air winter.
(1) separate refrigeration function
Scheme one: in air conditioner unit 10,4 work of the second heat exchanger, First Heat Exchanger 3 is not worked
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by the 3rd heat exchanger 8, and 4 pairs of air of the second heat exchanger cool off or cool-down dehumidification.
During work, first throttle mechanism 5 closes, 6 normal operations of the second throttle mechanism, the 3rd throttle mechanism 7 standard-sized sheets.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 68 pipeline 68, enters the 67 pipeline 67 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, also enter the 67 pipeline 67; Two-way is after the 67 pipeline 67 mixes, successively through the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 66 pipeline 66, the second cross valve 80 commutation nodes 82, the second cross valve 80 low pressure nodes 83, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
Scheme two: in air conditioner unit 10, the second heat exchanger 4 is not worked, First Heat Exchanger 3 work
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by the 3rd heat exchanger 8, and 3 pairs of air of First Heat Exchanger cool off or cool-down dehumidification.
During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 6 cuts out, the 3rd throttle mechanism 7 standard-sized sheets.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 68 pipeline 68, enters the 67 pipeline 67 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, also enter the 67 pipeline 67; Two-way is after the 67 pipeline 67 mixes, successively through the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, the 57 pipeline 57, first throttle mechanism 5, First Heat Exchanger 3, the 64 pipeline 64, the first cross valve 70 commutation nodes 74, the first cross valve 70 low pressure nodes 73, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
Scheme three: in air conditioner unit 10, the second heat exchanger 4, First Heat Exchanger 3 are all worked
Under this scheme, the condensation heat that refrigeration produces all enters environment (outdoor air or cooling water or soil etc.) by the 3rd heat exchanger 8, and the second heat exchanger 4,3 pairs of air of First Heat Exchanger cool off or cool-down dehumidification.
During work, the 3rd throttle mechanism 7 standard-sized sheets, the second throttle mechanism 6,5 normal operations of first throttle mechanism.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 72, the 61 pipeline 61, the first check valve 21 arrival ends, the first check valve 21 ports of export, the 68 pipeline 68, enters the 67 pipeline 67 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, also enter the 67 pipeline 67; Two-way through the 3rd heat exchanger 8, the 3rd throttle mechanism 7, enters the 58 pipeline 58 and is divided into again two-way successively after the 67 pipeline 67 mixes; The first via through the 52 pipeline 52, the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 66 pipeline 66, the second cross valve 80 commutation nodes 82, the second cross valve 80 low pressure nodes 83, the 65 pipeline 65, enters the 63 pipeline 63 successively; The second the tunnel successively through the 57 pipeline 57, first throttle mechanism 5, First Heat Exchanger 3, the 64 pipeline 64, the first cross valve 70 commutation nodes 74, the first cross valve 70 low pressure nodes 73, 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, it is compressed to enter compressing mechanism 1, finishes once circulation.
(2) the refrigerated dehumidification again hot merit energy of air of holding concurrently
Under this function, 4 pairs of air of the second heat exchanger carry out cool-down dehumidification, and the condensation heat some that dehumidifying produces utilizes the 3rd heat exchanger 8 to enter environment, and another part is used for the again heat of air in First Heat Exchanger 3.
During work, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all work.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, the 64 pipeline 64, First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, enters the 52 pipeline 52 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 84, the 67 pipeline 67, the 3rd heat exchanger 8, the 3rd throttle mechanism 7, the 58 pipeline 58, also enters the 52 pipeline 52; Two-way is after the 52 pipeline 52 mixes, successively through the second throttle mechanism 6, the second heat exchanger 4, the 51 pipeline 51, the 66 pipeline 66, the second cross valve 80 commutation nodes 82, the second cross valve 80 low pressure nodes 83, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
In the course of work, the adjusting control strategy of air conditioner unit 10 intake air dry-bulb temperatures, wet-bulb temperature is identical with embodiment 1.
(3) winter air heating function
Under this function, the 3rd heat exchanger 8 draw heat from environment, the heat of drawing is used for the heating of air in the second heat exchanger 4, First Heat Exchanger 3.
During work, 7 normal operations of the 3rd throttle mechanism, the second throttle mechanism 6, first throttle mechanism 5 be standard-sized sheet all.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; The first via through the first cross valve 70 high pressure nodes 71, the first cross valve 70 commutation nodes 74, the 64 pipeline 64, First Heat Exchanger 3, first throttle mechanism 5, the 57 pipeline 57, enters the 58 pipeline 58 successively; The second the tunnel successively through the 59 pipeline 59, the second cross valve 80 high pressure nodes 81, the second cross valve 80 commutation nodes 82, the 66 pipeline 66, the 51 pipeline 51, the second heat exchanger 4, the second throttle mechanism 6, the 52 pipeline 52, also enters the 58 pipeline 58; Two-way is after the 58 pipeline 58 mixes, successively through the 3rd throttle mechanism 7, the 3rd heat exchanger 8, the 67 pipeline 67, the second cross valve 80 commutation nodes 84, the second cross valve 80 low pressure nodes 83, the 65 pipeline 65, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, it is compressed to enter compressing mechanism 1, finishes once circulation.
(4) winter frost removing function
Under this function, 4 pairs of room airs of the second heat exchanger carry out cool-down dehumidification, a part of defrosting that is used for the 3rd heat exchanger 8 of the condensation heat that dehumidifying produces, and another part is used for the again heat of air in First Heat Exchanger 3.
During work, first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 all work.Its workflow is held concurrently with refrigerated dehumidification, and hot merit can be identical again for air.
Under this function, in order reasonably to regulate the refrigerant flow by First Heat Exchanger 3 and the 3rd heat exchanger 8, realization is to the control of air conditioner unit 10 outlet air dry-bulb temperatures, simultaneously the 3rd heat exchanger 8 is carried out defrost, establish the 3rd temperature-detecting device 33 in air conditioner unit 10 exits, for detection of the air dry-bulb temperature in air conditioner unit 10 exits.Under this function, the control strategy in the course of work is identical with embodiment 2 with method.
Embodiment 4
The method of attachment of the above-described liquid reservoir 50 of present embodiment in system is applicable to the described scheme of all embodiment of the present invention.
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 present embodiment is applicable to the described scheme of all embodiment of the present invention.
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 present embodiment is applicable to the described scheme of all embodiment of the present invention.
In the scheme of above-mentioned all embodiment of the present invention, any one check valve in described the first check valve 21, the second check valve 22 can both 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.
In the scheme of above-mentioned all embodiment of the present invention, compressing mechanism 1 is except can adopting the single stage compress that is comprised of at least one compressor, also can adopt shown in Fig. 1, by at least one low pressure compressor 1-1 and at least one the Two-stage Compression that high pressure compressor 1-2 forms, at this moment, low pressure compressor 1-1 arrival end links to each other with the 63 pipeline 63, the low pressure compressor 1-1 port of export is successively by middle gas supplementing opening A, high pressure compressor 1-2 arrival end, the high pressure compressor 1-2 port of export, link to each other with the 59 pipeline 59 with the 60 pipeline 60, can certainly adopt the single machine compression with double stage mode that is formed by at least one compressor.
Among the above low pressure compressor 1-1, the high pressure compressor 1-2 any one or two whiles, can adopt in the following compressor any one: screw compressor, helical-lobe compressor, rolling rotor compressor, sliding-vane compressor, rotary blade type compressor, centrifugal compressor, digital scroll compressor; Among low pressure compressor 1-1, the high pressure compressor 1-2 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: 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 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 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 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.
In the scheme of above-mentioned all embodiment of the present invention, in first throttle mechanism 5, the second throttle mechanism 6, the 3rd throttle mechanism 7 one or more even all throttle mechanisms can both adopt have turn-off function throttle mechanism (for example: electric expansion valve) substitute.
In the scheme of above-mentioned all embodiment of the present invention, described all pipelines all are copper pipes.
Claims (10)
1. operation of air conditioning systems, comprise compressing mechanism (1), the first cross valve (70), First Heat Exchanger (3), the second heat exchanger (4), the 3rd heat exchanger (8), first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7), the first check valve (21) and the second check valve (22), it is characterized in that: this operation of air conditioning systems also comprises the second cross valve (80); The low pressure node (73) of described the first cross valve (70) links to each other with the low pressure node (83) of described the second cross valve (80) by the 65 pipeline (65), the high pressure node (71) of described the first cross valve (70) is successively by the 60 pipeline (60), compressing mechanism (1) port of export, compressing mechanism (1) arrival end, the 65 pipeline (65) between the low pressure node (73) of the 63 pipeline (63) and described the first cross valve (70) and the low pressure node (83) of the second cross valve (80) links to each other, the high pressure node (81) of described the second cross valve (80) links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and compressing mechanism (1) port of export and the first cross valve (70), any one commutation node (84) in (80) two commutations of described the second cross valve node is successively by the 67 pipeline (67), the 3rd heat exchanger (8), the 3rd throttle mechanism (7), the 58 pipeline (58), the 57 pipeline (57), first throttle mechanism (5), First Heat Exchanger (3), any one commutation node (74) in (70) two commutations of the 64 pipeline (64) and described the first cross valve node links to each other, another commutation node (82) of described the second cross valve (80) is successively by the 66 pipeline (66), the second check valve (22) arrival end, the second check valve (22) port of export, the 69 pipeline (69) links to each other with the 64 pipeline (64), another commutation node (72) of described the first cross valve (70) is successively by the 61 pipeline (61), the first check valve (21) arrival end, the first check valve (21) port of export, the 68 pipeline (68) links to each other with the 67 pipeline (67), described the second heat exchanger (4) one ends are successively by the second throttle mechanism (6), the 52 pipeline (52) links to each other with pipeline between described first throttle mechanism (5) and the 3rd throttle mechanism (7), described the second heat exchanger (4) other end by the 51 pipeline (51) and described compressing mechanism (1) arrival end the 63 pipeline (63) or the 65 pipeline (65) between the low pressure node (83) of the low pressure node (73) of the first cross valve (70) and the second cross valve (80) link to each other.
2. operation of air conditioning systems, comprise compressing mechanism (1), the first cross valve (70), First Heat Exchanger (3), the second heat exchanger (4), the 3rd heat exchanger (8), first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7), the first check valve (21) and the second check valve (22), it is characterized in that: this operation of air conditioning systems also comprises the second cross valve (80); The low pressure node (73) of described the first cross valve (70) links to each other with the low pressure node (83) of described the second cross valve (80) by the 65 pipeline (65), the high pressure node (71) of described the first cross valve (70) is successively by the 60 pipeline (60), compressing mechanism (1) port of export, compressing mechanism (1) arrival end, the 65 pipeline (65) between the low pressure node (73) of the 63 pipeline (63) and described the first cross valve (70) and the low pressure node (83) of the second cross valve (80) links to each other, the high pressure node (81) of described the second cross valve (80) links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and compressing mechanism (1) port of export and the first cross valve (70), any one commutation node (84) in (80) two commutations of described the second cross valve node is successively by the 67 pipeline (67), the 3rd heat exchanger (8), the 3rd throttle mechanism (7), the 58 pipeline (58), the 57 pipeline (57), first throttle mechanism (5), First Heat Exchanger (3), any one commutation node (74) in (70) two commutations of the 64 pipeline (64) and described the first cross valve node links to each other, another commutation node (82) of described the second cross valve (80) is successively by the 66 pipeline (66), the second check valve (22) arrival end, the second check valve (22) port of export, the 69 pipeline (69) links to each other with the 64 pipeline (64), another commutation node (72) of described the first cross valve (70) is successively by the 61 pipeline (61), the first check valve (21) arrival end, the first check valve (21) port of export, the 68 pipeline (68) links to each other with the 67 pipeline (67), described the second heat exchanger (4) one ends are successively by the second throttle mechanism (6), the 52 pipeline (52) links to each other with pipeline between described first throttle mechanism (5) and the 3rd throttle mechanism (7), and described the second heat exchanger (4) other end links to each other with the 61 pipeline (61) of described the first check valve (21) arrival end by the 51 pipeline (51).
3. operation of air conditioning systems, comprise compressing mechanism (1), the first cross valve (70), First Heat Exchanger (3), the second heat exchanger (4), the 3rd heat exchanger (8), first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7), the first check valve (21) and the second check valve (22), it is characterized in that: this operation of air conditioning systems also comprises the second cross valve (80); The low pressure node (73) of described the first cross valve (70) links to each other with the low pressure node (83) of described the second cross valve (80) by the 65 pipeline (65), the high pressure node (71) of described the first cross valve (70) is successively by the 60 pipeline (60), compressing mechanism (1) port of export, compressing mechanism (1) arrival end, the 65 pipeline (65) between the low pressure node (73) of the 63 pipeline (63) and described the first cross valve (70) and the low pressure node (83) of the second cross valve (80) links to each other, the high pressure node (81) of described the second cross valve (80) links to each other by the 60 pipeline (60) between the high pressure node (71) of the 59 pipeline (59) and compressing mechanism (1) port of export and the first cross valve (70), any one commutation node (84) in (80) two commutations of described the second cross valve node is successively by the 67 pipeline (67), the 3rd heat exchanger (8), the 3rd throttle mechanism (7), the 58 pipeline (58), the 57 pipeline (57), first throttle mechanism (5), First Heat Exchanger (3), any one commutation node (74) in (70) two commutations of the 64 pipeline (64) and described the first cross valve node links to each other, another commutation node (82) of described the second cross valve (80) is successively by the 66 pipeline (66), the second check valve (22) arrival end, the second check valve (22) port of export, the 69 pipeline (69) links to each other with the 64 pipeline (64), another commutation node (72) of described the first cross valve (70) is successively by the 61 pipeline (61), the first check valve (21) arrival end, the first check valve (21) port of export, the 68 pipeline (68) links to each other with the 67 pipeline (67), described the second heat exchanger (4) one ends are successively by the second throttle mechanism (6), the 52 pipeline (52) links to each other with pipeline between described first throttle mechanism (5) and the 3rd throttle mechanism (7), and described the second heat exchanger (4) other end links to each other with the 66 pipeline (66) of described the second check valve (22) arrival end by the 51 pipeline (51).
4. the described operation of air conditioning systems of arbitrary claim in 3 according to claim 1, 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 (50) by the 57 pipeline (57); Described the 3rd throttle mechanism (7) one ends link to each other with the 3rd heat exchanger (8), and described the 3rd throttle mechanism (7) other end links to each other with liquid reservoir (50) by the 58 pipeline (58); Described the second throttle mechanism (6) one ends link to each other with the second heat exchanger (4), and described the second throttle mechanism (6) other end links to each other with any place in liquid reservoir (50), the 57 pipeline (57) or the 58 pipeline (58) by the 52 pipeline (52).
5. the described operation of air conditioning systems of arbitrary claim in 3 according to claim 1, it is characterized in that an oil eliminator (90) arrival end links to each other with described compressing mechanism (1) port of export, described oil eliminator (90) port of export links to each other with the 60 pipeline (60).
6. the described operation of air conditioning systems of arbitrary claim in 3 according to claim 1, it is characterized in that a gas-liquid separator (91) port of export links to each other with described compressing mechanism (1) arrival end, described gas-liquid separator (91) arrival end by the 63 pipeline (63) and described the first cross valve (70) low pressure node (73) and the 65 pipeline (65) between the low pressure node (83) of the second cross valve (80) link to each other.
7. the described operation of air conditioning systems of arbitrary claim in 3 according to claim 1 is characterized in that in described first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7) any one is electric expansion valve.
According to claim 1 with 2 in the described operation of air conditioning systems of arbitrary claim, it is characterized in that described the second heat exchanger (4), the 3rd heat exchanger (8) are arranged in the same air conditioner unit (10), and along the flow direction of air, described the 3rd heat exchanger (8) is in the downwind side of the second heat exchanger (4).
9. operation of air conditioning systems according to claim 3, it is characterized in that described First Heat Exchanger (3), the second heat exchanger (4) are arranged in the same air conditioner unit (10), and along the flow direction of air, described First Heat Exchanger (3) is in the downwind side of the second heat exchanger (4).
10. operation of air conditioning systems according to claim 4 is characterized in that in described first throttle mechanism (5), the second throttle mechanism (6), the 3rd throttle mechanism (7) any one is electric expansion valve.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210381271 CN102853594A (en) | 2012-09-24 | 2012-09-24 | Refrigeration equipment for air conditioner |
| CN201310422163.4A CN103471296B (en) | 2012-09-24 | 2013-09-08 | Operation of air conditioning systems |
| CN201320573473.1U CN203464560U (en) | 2012-09-24 | 2013-09-08 | Air conditioning refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210381271 CN102853594A (en) | 2012-09-24 | 2012-09-24 | Refrigeration equipment for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102853594A true CN102853594A (en) | 2013-01-02 |
Family
ID=47400408
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210381271 Pending CN102853594A (en) | 2012-09-24 | 2012-09-24 | Refrigeration equipment for air conditioner |
| CN201320573473.1U Withdrawn - After Issue CN203464560U (en) | 2012-09-24 | 2013-09-08 | Air conditioning refrigeration equipment |
| CN201310422163.4A Active CN103471296B (en) | 2012-09-24 | 2013-09-08 | Operation of air conditioning systems |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320573473.1U Withdrawn - After Issue CN203464560U (en) | 2012-09-24 | 2013-09-08 | Air conditioning refrigeration equipment |
| CN201310422163.4A Active CN103471296B (en) | 2012-09-24 | 2013-09-08 | Operation of air conditioning systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN102853594A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515210A (en) * | 2013-09-30 | 2015-04-15 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104515322A (en) * | 2013-09-30 | 2015-04-15 | 珠海格力电器股份有限公司 | Air conditioning system being able to achieve continuous heating |
| CN104567073A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Air conditioning cycle system |
| CN104633771A (en) * | 2013-11-13 | 2015-05-20 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit and control method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900288B (en) * | 2014-04-04 | 2016-08-24 | 中交第二航务工程勘察设计院有限公司 | A kind of port district source pump and control method thereof |
| CN104534722B (en) * | 2014-12-08 | 2017-10-20 | 刘雄 | Operation of air conditioning systems |
| CN106225292A (en) * | 2016-07-27 | 2016-12-14 | 重庆美的通用制冷设备有限公司 | Net for air-source heat pump units system |
| CN106524588B (en) * | 2016-10-22 | 2021-04-02 | 刘雄 | Heat pump air conditioning equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0939542A (en) * | 1995-08-02 | 1997-02-10 | Matsushita Electric Ind Co Ltd | Heat pump air-conditioning dehumidifier for electric car |
| KR100468474B1 (en) * | 2003-03-14 | 2005-01-27 | 삼성전자주식회사 | Cooling and heating system |
| CN101131266A (en) * | 2006-08-22 | 2008-02-27 | 珠海格力电器股份有限公司 | Heat-reclamation multi-compressors |
| CN102128511A (en) * | 2011-04-04 | 2011-07-20 | 刘雄 | Double heat source heat pump air-conditioning equipment |
| CN102506520B (en) * | 2011-10-31 | 2014-12-10 | 刘雄 | Refrigeration equipment of air conditioner |
| CN102419036B (en) * | 2011-10-31 | 2016-06-29 | 刘雄 | Three-way flow direction conversion device for refrigerant |
-
2012
- 2012-09-24 CN CN 201210381271 patent/CN102853594A/en active Pending
-
2013
- 2013-09-08 CN CN201320573473.1U patent/CN203464560U/en not_active Withdrawn - After Issue
- 2013-09-08 CN CN201310422163.4A patent/CN103471296B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515210A (en) * | 2013-09-30 | 2015-04-15 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104515322A (en) * | 2013-09-30 | 2015-04-15 | 珠海格力电器股份有限公司 | Air conditioning system being able to achieve continuous heating |
| CN104515210B (en) * | 2013-09-30 | 2017-08-29 | 珠海格力电器股份有限公司 | Air-conditioning system |
| CN104567073A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Air conditioning cycle system |
| CN104633771A (en) * | 2013-11-13 | 2015-05-20 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit and control method thereof |
| CN104633771B (en) * | 2013-11-13 | 2018-07-03 | 珠海格力电器股份有限公司 | VRF Air Conditioning System and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103471296A (en) | 2013-12-25 |
| CN203464560U (en) | 2014-03-05 |
| CN103471296B (en) | 2016-05-11 |
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Application publication date: 20130102 |