CN202581918U - Air conditioning refrigeration equipment - Google Patents

Air conditioning refrigeration equipment Download PDF

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Publication number
CN202581918U
CN202581918U CN 201220254371 CN201220254371U CN202581918U CN 202581918 U CN202581918 U CN 202581918U CN 201220254371 CN201220254371 CN 201220254371 CN 201220254371 U CN201220254371 U CN 201220254371U CN 202581918 U CN202581918 U CN 202581918U
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pipeline
check valve
export
water
port
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刘雄
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刘雄
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Abstract

The utility model discloses air conditioning refrigeration equipment, which comprises a compression mechanism, a four-way valve, a user side heat exchanger, a heat source side heat exchanger, a hot water heater, a first throttling mechanism, a second throttling mechanism, a first check valve, a second check valve and a third check valve, wherein a high-pressure joint of the four-way valve is connected with the outlet end of the compression mechanism through a sixtieth pipeline, a low-pressure joint of the four-way valve is connected with the inlet end of the compression mechanism through a sixty-third pipeline; and any one of two reversing joints of the four-way valve is connected with the sixty-fourth pipeline at the outlet end of the second check valve sequentially through the sixty-fourth pipeline, the outlet end of the second check valve, the inlet end of the second check valve, a sixty-sixth pipeline, the first throttling mechanism, a sixty-second pipeline, the inlet end of the third check valve, the outlet end of the third check valve, the outlet end of the first check valve and the inlet end of the first check valve. The air conditioning refrigeration equipment is simple in structure and low in cost, and can work reliably, and a plurality of functions of refrigeration, heating, hot water production and the like can be realized.

Description

Operation of air conditioning systems
Technical field
The utility model relates to a kind of operation of air conditioning systems with multiple function, belongs to refrigeration technology field.
Background technology
The utility model applicant submitted on October 02nd, 2010, application number is 201010508119.1 patent of invention; Relate to a kind of operation of air conditioning systems with multiple function; Three heat exchangers are arranged in this operation of air conditioning systems; Be respectively heat source side heat exchanger, user side heat exchanger and hot-water heater, it can satisfy user's refrigeration, heating and domestic hot-water's demand in the whole year operation process.But from the application specification of this invention, can find: when this operation of air conditioning systems is worked under independent production hot water function; Heat source side heat exchanger is draw heat from environment; Utilize the heat of being drawn, productive life hot water in hot-water heater, and the user side heat exchanger is in idle state; Similarly, when under this operation of air conditioning systems heats function in the winter time separately, working, heat source side heat exchanger is draw heat from environment, utilizes the heat of being drawn, and be user's heating through the user side heat exchanger, and hot-water heater is in idle state.
This shows; Above-mentioned operation of air conditioning systems in the course of the work; The exchange capability of heat of its three heat exchangers does not obtain utilizing fully effectively; Producing separately hot water function, and when working under the heating function separately winter, reducing the heating efficiency of above-mentioned operation of air conditioning systems, thereby the service behaviour of this operation of air conditioning systems has been caused adverse effect.
Summary of the invention
The purpose of the utility model provides a kind of in the whole year operation process, can effectively utilize the operation of air conditioning systems of refrigeration, heating and domestic hot-water's demand that heat exchange capability of heat exchanger satisfies the user.
In order to overcome the problem that above-mentioned technology exists, the technical scheme of the utility model technical solution problem is:
1, a kind of operation of air conditioning systems; Comprise compressing mechanism (1), cross valve (2), user side heat exchanger (3), heat source side heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises second throttle mechanism (7), hot-water heater (8), first check valve (21), second check valve (22) and the 3rd check valve (23); The high pressure node (71) of said cross valve (2) links to each other with compressing mechanism (1) port of export through the 60 pipeline (60); The low pressure node (73) of said cross valve (2) links to each other with compressing mechanism (1) arrival end through the 63 pipeline (63), and any node (72) in (2) two switching-overs of said cross valve node links to each other with the 64 pipeline (64) of said second check valve (22) port of export through the 64 pipeline (64), second check valve (22) port of export, second check valve (22) arrival end, the 66 pipeline (66), first throttle mechanism (5), the 62 pipeline (62), the 3rd check valve (23) arrival end, the 3rd check valve (23) port of export, first check valve (21) port of export, first check valve (21) arrival end successively;
Said hot-water heater (8) refrigerant side arrival end links to each other with pipeline between said first check valve (21) port of export and the 3rd check valve (23) port of export through the 69 pipeline (69), and said hot-water heater (8) the refrigerant side port of export links to each other with the 66 pipeline (66) between said second check valve (22) arrival end and the first throttle mechanism (5) through the 68 pipeline (68), second throttle mechanism (7), heat source side heat exchanger (4) arrival end, heat source side heat exchanger (4) port of export, the 70 pipeline (70) successively;
Another switching-over node (74) of said cross valve (2) links to each other through any connected node in two connected nodes of the 61 pipeline (61) and said user side heat exchanger (3) refrigerant side, and another connected node of said user side heat exchanger (3) refrigerant side links to each other with the 62 pipeline (62) between said the 3rd check valve (23) arrival end and the first throttle mechanism (5).
2, a kind of operation of air conditioning systems; Comprise compressing mechanism (1), cross valve (2), user side heat exchanger (3), heat source side heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises second throttle mechanism (7), hot-water heater (8), liquid reservoir (9), first check valve (21), second check valve (22), the 3rd check valve (23) and the 4th check valve (24); The high pressure node (71) of said cross valve (2) links to each other with compressing mechanism (1) port of export through the 60 pipeline (60); The low pressure node (73) of said cross valve (2) links to each other with compressing mechanism (1) arrival end through the 63 pipeline (63), and any node (72) in (2) two switching-overs of said cross valve node links to each other with the 64 pipeline (64) of said second check valve (22) port of export through the 64 pipeline (64), second check valve (22) port of export, second check valve (22) arrival end, the 66 pipeline (66), the 4th check valve (24) arrival end, the 4th check valve (24) port of export, the 67 pipeline (67), liquid reservoir (9), the 65 pipeline (65), first throttle mechanism (5), the 62 pipeline (62), the 3rd check valve (23) arrival end, the 3rd check valve (23) port of export, first check valve (21) port of export, first check valve (21) arrival end successively;
Said hot-water heater (8) refrigerant side arrival end links to each other with pipeline between said first check valve (21) port of export and the 3rd check valve (23) port of export through the 69 pipeline (69), and said hot-water heater (8) the refrigerant side port of export links to each other with the 66 pipeline (66) between said second check valve (22) arrival end and the 4th check valve (24) arrival end through the 68 pipeline (68), second throttle mechanism (7), heat source side heat exchanger (4) arrival end, heat source side heat exchanger (4) port of export, the 70 pipeline (70) successively;
Another switching-over node (74) of said cross valve (2) links to each other through any connected node in two connected nodes of the 61 pipeline (61) and said user side heat exchanger (3) refrigerant side, and another connected node of said user side heat exchanger (3) refrigerant side links to each other with the 62 pipeline (62) between said the 3rd check valve (23) arrival end and the first throttle mechanism (5).
The utility model compared with prior art, its beneficial effect is:
1. the exchange capability of heat that can effectively utilize heat exchanger satisfies user's domestic hot-water, refrigeration and heating demand;
2. can recycle the condensation heat that operation of air conditioning systems is produced in running;
3. simple in structure, reliable operation, with low cost;
4. the utility model is applicable to industry and civilian operation of air conditioning systems, is specially adapted to the occasion of refrigeration, heating and domestic hot-water's demand.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the utility model embodiment 2 structural representations;
Fig. 3 is the utility model embodiment 1 and 2 operation of air conditioning systems water system structural representations.
The specific embodiment
Below in conjunction with accompanying drawing the utility model content is done further explain.
Embodiment 1
As shown in Figure 1, present embodiment is a kind of operation of air conditioning systems with multiple function, is used for that refrigeration is arranged the whole year, the occasion of heating and domestic hot-water's demand.Operation of air conditioning systems shown in Figure 1 comprises following part: compressing mechanism 1, cross valve 2, first throttle mechanism 5, second throttle mechanism 7, user side heat exchanger 3, heat source side heat exchanger 4 and hot-water heater 8; First throttle mechanism 5, second throttle mechanism 7 are electric expansion valve; User side heat exchanger 3 is cold-producing medium-water-to-water heat exchangers, is used to produce chilled water summer, is used to produce hot water other season; Heat source side heat exchanger 4 is cold-producing medium-air heat exchangers, both can be used as condenser, in environment, distributes the condensation heat that refrigeration produces, and also can be used as evaporimeter, from environment, absorbs heat; Hot-water heater 8 also is a cold-producing medium-water-to-water heat exchanger, and be used to the user and produce hot water the whole year.
With the water system that present embodiment operation of air conditioning systems shown in Figure 1 matches, as shown in Figure 3.Operation of air conditioning systems water system shown in Figure 3 comprises following part: the user side heat exchanger 3 of operation of air conditioning systems, the hot-water heater 8 of operation of air conditioning systems, domestic hot-water's heater 30, hot-water circulating pump 50, air conditioner water circulating pump 51, air-conditioning equipment 100, first non-return valve 109, second non-return valve 110, first water flow control valve 121, second water flow control valve 122, the 3rd water flow control valve 123.Their connected mode is described below:
Hot-water heater 8 water side entrance ends link to each other with hot-water heater 8 water side outlet ends through second non-return valve, 110 ports of export, second non-return valve, 110 arrival ends, hot-water circulating pump 50 ports of export, hot-water circulating pump 50 arrival ends, the 108 pipeline 108, domestic hot-water's heater 30 ports of export, domestic hot-water's heater 30 arrival ends, the 106 pipeline 106, first water flow control valve the 121, the 105 pipeline 105 successively;
User side heat exchanger 3 water side entrance ends link to each other with user side heat exchanger 3 water side outlet ends through the 103 pipeline 103, first non-return valve, 109 ports of export, first non-return valve, 109 arrival ends, air conditioner water circulating pump 51 ports of export, air conditioner water circulating pump 51 arrival ends, the 102 pipeline 102, air-conditioning equipment 100 ports of export, air-conditioning equipment 100 arrival ends, the 101 pipeline 101 successively;
Second water flow control valve, 122 1 ends link to each other with the 101 pipeline 101 between user side heat exchanger 3 water side outlet ends and air-conditioning equipment 100 arrival ends, and second water flow control valve, 122 other ends link to each other with the 106 pipeline 106 between domestic hot-water's heater 30 arrival ends and first water flow control valve 121;
The 3rd water flow control valve 123 1 ends link to each other with the 102 pipeline 102 between air conditioner water circulating pump 51 arrival ends and air-conditioning equipment 100 ports of export, and the 3rd water flow control valve 123 other ends link to each other with the 108 pipeline 108 between domestic hot-water's heater 30 ports of export and hot-water circulating pump 50 arrival ends;
The 104 pipeline 104 1 ends link to each other with the 103 pipeline 103 between the user side heat exchanger 3 water side entrance ends and first non-return valve, 109 ports of export, and the 104 pipeline 104 other ends link to each other with the 105 pipeline 105 between the hot-water heater 8 water side outlet ends and first water flow control valve 121.
Operation of air conditioning systems shown in Figure 1 and associated operation of air conditioning systems water system shown in Figure 3; In the summer course of work, the chilled water that utilizes user side heat exchanger 3 to be produced is user's cooling through air-conditioning equipment 100; The condensation heat that refrigeration is produced is with the mode of recuperation of heat; Produce hot water through hot-water heater 8, the hot water of being produced through domestic hot-water's heater 30 productive life hot water, is not entered in the surrounding environment through heat source side heat exchanger 4 by the condensation heat of recuperation of heat again; In the course of work of transition season, heat source side heat exchanger 4 draw heat from surrounding environment, the heat of being drawn is produced hot water through user side heat exchanger 3 and hot-water heater 8, and the hot water of being produced is again through domestic hot-water's heater 30 productive life hot water; In the winter time in the course of work; Heat source side heat exchanger 4 draw heat from surrounding environment; The heat of being drawn is produced hot water through user side heat exchanger 3 and hot-water heater 8; A hot water part of being produced is again through domestic hot-water's heater 30 productive life hot water, and another part is user's heating through air-conditioning equipment 100.
Operation of air conditioning systems shown in Figure 1 and the associated workflow of operation of air conditioning systems water system when realizing each function shown in Figure 3 are described below respectively.
(1) the double recuperation of heat of refrigeration
As shown in figs. 1 and 3, under this function, the part condensation heat that hot-water heater 8 utilizes refrigeration to be produced is produced hot water, and the hot water of being produced passes through domestic hot-water's heater 30 productive life hot water again; Another part condensation heat enters environment through heat source side heat exchanger 4; User side heat exchanger 3 is used to produce chilled water, and the chilled water of being produced is user's cooling through air-conditioning equipment 100.
During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot-water circulating pump 50, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121 is opened, and second water flow control valve 122, the 3rd water flow control valve 123 are closed.
Under this function; The workflow of operation of air conditioning systems shown in Figure 1 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 switching-over nodes the 72, the 64 pipeline 64, check valve 21 arrival ends, first check valve, 21 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, first throttle mechanism the 5, the 62 pipeline 62; Get into the refrigerant side of user side heat exchanger 3, carry out heat exchange through user side heat exchanger 3 and water; Cold-producing medium absorbs heat, come out from the refrigerant side of user side heat exchanger 3 after, successively through the 61 pipeline 61, cross valve 2 switching-over nodes 74, cross valve 2 low pressure nodes the 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.
Under this function, the workflow of operation of air conditioning systems water system shown in Figure 3 is divided into two parts.
First is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline 105, first water flow control valve the 121, the 106 pipeline 106, domestic hot-water's heater 30 arrival ends, domestic hot-water's heater 30 ports of export, the 108 pipeline 108, hot-water circulating pump 50 arrival ends, hot-water circulating pump 50 ports of export, second non-return valve, 110 arrival ends, second non-return valve, 110 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.
Second portion is: after chilled water is discharged from user side heat exchanger 3 water side outlet ends; Through the 101 pipeline 101, air-conditioning equipment 100 arrival ends, air-conditioning equipment 100 ports of export, the 102 pipeline 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, first non-return valve, 109 arrival ends, first non-return valve, 109 ports of export, the 103 pipeline 103, get back to user side heat exchanger 3 water side entrance ends successively.
(2) independent productive life hot water
As shown in figs. 1 and 3, under this function, heat source side heat exchanger 4 draw heat from environment utilizes the heat of being drawn, and in hot-water heater 8 and user side heat exchanger 3, produces hot water, and the hot water of being produced is again through domestic hot-water's heater 30 productive life hot water.
During work, air-conditioning equipment 100, air conditioner water circulating pump 51 are not worked, hot-water circulating pump 50 operate as normal; First throttle mechanism 5 closes, second throttle mechanism, 7 operate as normal; First water flow control valve 121, the 3rd water flow control valve 123 are closed, and second water flow control valve 122 is opened.
Under this function; The workflow of operation of air conditioning systems shown in Figure 1 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 switching-over nodes the 74, the 61 pipeline 61; The refrigerant side and the recirculated water that get into user side heat exchanger 3 carry out heat exchange; After emitting heat, coming out from the refrigerant side of user side heat exchanger 3; Successively through the 62 pipeline 62, the 3rd check valve 23 arrival ends, the 3rd check valve 23 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, second check valve, 22 arrival ends, second check valve, 22 ports of export, the 64 pipeline 64, cross valve 2 switching-over nodes 72, cross valve 2 low pressure nodes the 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.
Under this function; The workflow of operation of air conditioning systems water system shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline the 105, the 104 pipeline the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, the 101 pipeline 101, second water flow control valve the 122, the 106 pipeline 106, domestic hot-water's heater 30 arrival ends, domestic hot-water's heater 30 ports of export, the 108 pipeline 108, hot-water circulating pump 50 arrival ends, hot-water circulating pump 50 ports of export, second non-return valve, 110 arrival ends, second non-return valve, 110 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.
(3) heat separately winter
As shown in figs. 1 and 3, under this function, heat source side heat exchanger 4 draw heat from environment utilizes the heat of drawing, and in hot-water heater 8 and user side heat exchanger 3, produces hot water, and the hot water of being produced is user's heating through air-conditioning equipment 100 again.
During work, domestic hot-water's heater 30, air conditioner water circulating pump 51 are not worked, hot-water circulating pump 50 operate as normal; First throttle mechanism 5 closes, second throttle mechanism, 7 operate as normal; First water flow control valve 121, second water flow control valve 122 are closed, and the 3rd water flow control valve 123 is opened.
Under this function, the workflow of operation of air conditioning systems shown in Figure 1 is identical with the workflow of independent productive life hot water function.
Under this function; The workflow of operation of air conditioning systems water system shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline the 105, the 104 pipeline the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, the 101 pipeline 101, air-conditioning equipment 100 arrival ends, air-conditioning equipment 100 ports of export, the 3rd water flow control valve the 123, the 108 pipeline 108, hot-water circulating pump 50 arrival ends, hot-water circulating pump 50 ports of export, second non-return valve, 110 arrival ends, second non-return valve, 110 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.
(4) heat simultaneously winter and productive life hot water
As shown in figs. 1 and 3; Under this function; Heat source side heat exchanger 4 draw heat from environment utilizes the heat of drawing, and in hot-water heater 8 and user side heat exchanger 3, produces hot water; A hot water part of being produced is user's heating through air-conditioning equipment 100, and another part is user's productive life hot water through domestic hot-water's heater 30.
During work, air conditioner water circulating pump 51 is not worked, hot-water circulating pump 50 operate as normal; First throttle mechanism 5 closes, second throttle mechanism, 7 operate as normal; First water flow control valve 121 is closed, and second water flow control valve 122, the 3rd water flow control valve 123 are opened.
Under this function, the workflow of operation of air conditioning systems shown in Figure 1 is identical with the workflow of independent productive life hot water function.
Under this function; The workflow of operation of air conditioning systems water system shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline the 105, the 104 pipeline the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, get into the 101 pipeline 101 and be divided into two-way successively; The first via is passed through air-conditioning equipment 100 arrival ends, air-conditioning equipment 100 ports of export, the 3rd water flow control valve 123 successively, gets into the 108 pipeline 108; The second the tunnel successively through second water flow control valve the 122, the 106 pipeline 106, domestic hot-water's heater 30 arrival ends, domestic hot-water's heater 30 ports of export, also get into the 108 pipeline 108; Two-way is after the 108 pipeline 108 mixes; Pass through hot-water circulating pump 50 arrival ends, hot-water circulating pump 50 ports of export, second non-return valve, 110 arrival ends, second non-return valve, 110 ports of export, the 107 pipeline 107 more successively, get back to hot-water heater 8 water side entrance ends.
(5) winter frost removing
As shown in figs. 1 and 3, under this function, during winter frost removing, the hold concurrently workflow of heat recovery function of the workflow of operation of air conditioning systems shown in Figure 1 and its refrigeration is identical.That 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 switching-over nodes the 72, the 64 pipeline 64, first check valve, 21 arrival ends, first check valve, 21 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, first throttle mechanism the 5, the 62 pipeline 62; Get into the refrigerant side of user side heat exchanger 3, carry out heat exchange through user side heat exchanger 3 and water; Cold-producing medium absorbs heat, come out from the refrigerant side of user side heat exchanger 3 after, successively through the 61 pipeline 61, cross valve 2 switching-over nodes 74, cross valve 2 low pressure nodes the 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.
During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; First water flow control valve 121, the 3rd water flow control valve 123 are closed, and second water flow control valve 122 is opened; Air-conditioning equipment 100, air conditioner water circulating pump 51 are not worked, hot-water circulating pump 50 operate as normal.
During work, circulating hot water is through domestic hot-water's heater 30, and from the domestic hot-water draw heat; Circulating hot water by hot-water circulating pump 50 drivings; The refrigerant vapour heating that the machine that is compressed is discharged in hot-water heater 8; But in user side heat exchanger 3; Heated hot water is emitted heat again, and heat that the compressor wasted work is produced in this process and the heat of from the domestic hot-water, drawing are used for defrost through cold-producing medium in heat source side heat exchanger 4.
In the course of the work; The workflow of operation of air conditioning systems water system shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline the 105, the 104 pipeline the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, the 101 pipeline 101, second water flow control valve the 122, the 106 pipeline 106, domestic hot-water's heater 30 arrival ends, domestic hot-water's heater 30 ports of export, the 108 pipeline 108, hot-water circulating pump 50 arrival ends, hot-water circulating pump 50 ports of export, second non-return valve, 110 arrival ends, second non-return valve, 110 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.
In defrost process; In order effectively the described operation of air conditioning systems of the utility model to be controlled; Following control method is arranged: at least one outlet cooling-water temperature sensor is set, is used to detect the water temperature of user side heat exchanger 3 water side outlet ends on the 101 pipeline 101 of user side heat exchanger 3 water side outlet ends.In defrost process, the water temperature of utilizing this outlet cooling-water temperature sensor to be detected is controlled the operation of the described operation of air conditioning systems of the utility model through controller, and concrete control method is following.
1) when compressing mechanism 1 is frequency-changeable compressor, controller is controlled the operating frequency of compressing mechanism 1 according to the outlet water temperature that cooling-water temperature sensor detected, and makes the actual water temperature of user side heat exchanger 3 water side outlet ends be maintained desired value.Concrete control method is: when the actual water temperature of the outlet user side heat exchanger 3 water side outlet ends that cooling-water temperature sensor detected is lower than desired value, reduce the operating frequency of compressing mechanism 1; When the actual water temperature of the outlet user side heat exchanger 3 water side outlet ends that cooling-water temperature sensor detected is higher than desired value, increase the operating frequency of compressing mechanism 1.
2) when compressing mechanism 1 is frequency-changeable compressor, controller is controlled the operating frequency of compressing mechanism 1 according to the outlet water temperature that cooling-water temperature sensor detected, and makes the actual water temperature of user side heat exchanger 3 water side outlet ends be not less than desired value.Concrete control method is: when the actual water temperature of the outlet user side heat exchanger 3 water side outlet ends that cooling-water temperature sensor detected is higher than desired value, increase the operating frequency of compressing mechanism 1; When the actual water temperature of the outlet user side heat exchanger 3 water side outlet ends that cooling-water temperature sensor detected is lower than desired value; Then reduce the operating frequency of compressing mechanism 1; After this; Controller is controlled the operating frequency of compressing mechanism 1 according to the outlet actual water temperature that cooling-water temperature sensor detected, and makes the actual water temperature of user side heat exchanger 3 water side outlet ends be maintained desired value.
3) in defrost process, when the displacement volume of compressing mechanism 1 did not change, controller was according to the outlet water temperature that cooling-water temperature sensor detected, and whether decision puts air-conditioning equipment 100 into operation as auxiliary defrosting thermal source.
Concrete control method is: when the actual water temperature of the outlet user side heat exchanger 3 water side outlet ends that cooling-water temperature sensor detected is higher than desired value; Then air-conditioning equipment 100 does not put into operation as auxiliary defrosting thermal source; For operation of air conditioning systems water system shown in Figure 3, that is: the 3rd water flow control valve 123 is closed.
When the actual water temperature of the outlet user side heat exchanger 3 water side outlet ends that cooling-water temperature sensor detected was lower than desired value, then air-conditioning equipment 100 put into operation as auxiliary defrosting thermal source, makes the actual water temperature of user side heat exchanger 3 water side outlet ends be not less than desired value.At this moment, for operation of air conditioning systems water system shown in Figure 3, that is: the 3rd water flow control valve 123 is opened, and during defrosting, air-conditioning equipment 100 and domestic hot-water's heater 30 are all as the defrosting thermal source.Under this defrosting control method, the workflow of operation of air conditioning systems water system shown in Figure 3 is following:
During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; First water flow control valve 121 is closed, and second water flow control valve 122, the 3rd water flow control valve 123 are opened; Air conditioner water circulating pump 51 is not worked, hot-water circulating pump 50 operate as normal.
During work, circulating hot water is respectively through domestic hot-water's heater 30 and air-conditioning equipment 100, and draw heat from domestic hot-water and user's air conditioning hot respectively; Circulating hot water by hot-water circulating pump 50 drivings; The refrigerant vapour heating that the machine that is compressed is discharged in hot-water heater 8; But in user side heat exchanger 3; Heated hot water is emitted heat again, and heat that the compressor wasted work is produced in this process and the heat of from the domestic hot-water, drawing are used for defrost through cold-producing medium in heat source side heat exchanger 4.
In the defrosting course of work; The workflow of operation of air conditioning systems water system shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline the 105, the 104 pipeline the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, get into the 101 pipeline 101 and be divided into two-way successively; The first via is passed through air-conditioning equipment 100 arrival ends, air-conditioning equipment 100 ports of export, the 3rd water flow control valve 123 successively, gets into the 108 pipeline 108; The second the tunnel successively through second water flow control valve the 122, the 106 pipeline 106, domestic hot-water's heater 30 arrival ends, domestic hot-water's heater 30 ports of export, also get into the 108 pipeline 108; Two-way is after the 108 pipeline 108 mixes; Pass through hot-water circulating pump 50 arrival ends, hot-water circulating pump 50 ports of export, second non-return valve, 110 arrival ends, second non-return valve, 110 ports of export, the 107 pipeline 107 more successively, get back to hot-water heater 8 water side entrance ends.
Embodiment 2
As shown in Figure 2, the difference of it and embodiment 1 scheme shown in Figure 1 is to have increased a liquid reservoir 9 and one the 4th check valve 24 in the operation of air conditioning systems.
As shown in Figure 2; Liquid reservoir 9 with the connected mode of the 4th check valve 24 in operation of air conditioning systems is: the 4th check valve 24 arrival ends link to each other through the 70 pipeline 70 of the 66 pipeline 66 with second check valve, 22 arrival ends and heat source side heat exchanger 4 ports of export, and the 4th check valve 24 ports of export link to each other with the 62 pipeline 62 through the 67 pipeline 67, liquid reservoir the 9, the 65 pipeline 65, first throttle mechanism 5 successively.
Present embodiment scheme shown in Figure 2 and associated operation of air conditioning systems water system shown in Figure 3; Also can realize the function of embodiment 1 scheme shown in Figure 1; But realizing independent productive life hot water function, winter heating separately function, winter are heating simultaneously and during the productive life hot water function; First throttle mechanism 5 is in opening, so that utilize liquid reservoir 9 to regulate the cold-producing medium circular flow of operation of air conditioning systems in running.
Present embodiment scheme shown in Figure 2 is passed through in operation of air conditioning systems, to increase by one first flow direction control valve, can do further improvement.The connected mode of first flow direction control valve in operation of air conditioning systems shown in Figure 2 is: an end of first flow direction control valve links to each other with liquid reservoir 9, and the other end of said first flow direction control valve links to each other with the middle gas supplementing opening A of compressing mechanism 1.
During practical application, this first flow direction control valve 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.
When under refrigeration is held concurrently heat recovery function, working, utilize this first flow direction control valve,, can improve the service behaviour of operation of air conditioning systems through middle gas supplementing opening A tonifying Qi in the compression process of compressing mechanism 1 of compressing mechanism 1.
Embodiment 3
Embodiment 1 Fig. 1 and the said scheme of embodiment 2 Fig. 2; Through in operation of air conditioning systems, increasing an oil eliminator 90; Can do further improvement; At this moment, the connected mode of oil eliminator 90 in operation of air conditioning systems 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 high pressure node 71 of cross valve 2 through 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 present embodiment is applicable to the said scheme of all embodiment of the utility model.
Embodiment 4
Embodiment 1 Fig. 1 and the said scheme of embodiment 2 Fig. 2; Through in operation of air conditioning systems, increasing a gas-liquid separator 91; Can do further improvement; At this moment, the connected mode of gas-liquid separator 91 in operation of air conditioning systems 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 cross valve 2 low pressure nodes 73 through the 63 pipeline 63.
During work, the effect of gas-liquid separator 91 is separate compressed mechanism 1 refrigerant liquids in air-breathing, avoids producing liquid hammer.The above scheme of present embodiment is applicable to the said scheme of all embodiment of the utility model.
Embodiment 5
For embodiment 2 schemes shown in Figure 2; Can do further improvement through in this operation of air conditioning systems, increasing by one second flow direction control valve; At this moment; The connected mode of second flow direction control valve in operation of air conditioning systems is: second flow direction control valve, one end links to each other with the 68 pipeline 68 between the hot-water heater 8 refrigerant side ports of export and second throttle mechanism 7, and any place in the 65 pipeline 65 between the 67 pipeline 67, liquid reservoir 9 and the first throttle mechanism 5 between the second flow direction control valve other end and liquid reservoir 9, liquid reservoir 9 and the 4th check valve 24 ports of export links to each other.
In the course of work, all functions that above-mentioned improvement project also can embodiment 2 schemes shown in Figure 2, and workflow is identical.When realizing each function, the duty of second flow direction control valve, first throttle mechanism 5, second throttle mechanism 7 is following:
1) the double heat recovery function of refrigeration, winter frost removing function
Second flow direction control valve is closed, second throttle mechanism, 7 standard-sized sheets, first throttle mechanism 5 operate as normal.
2) heat separately separately that function, winter heat simultaneously and the productive life hot water function in productive life hot water function, winter
Second flow direction control valve is opened, second throttle mechanism, 7 operate as normal, and first throttle mechanism 5 closes.In the course of work, because second flow direction control valve is in opening, so along with the change of operating mode, cold-producing medium passes in and out 9 pairs of cold-producing medium circular flows of liquid reservoir through second flow direction control valve and regulates.
The improvement project of above-described embodiment 2 schemes shown in Figure 2; Can do improvement further through in this operation of air conditioning systems, increasing by one first flow direction control valve; At this moment; The connected mode of first flow direction control valve in operation of air conditioning systems is: an end of first flow direction control valve links to each other with liquid reservoir 9, and the other end of said first flow direction control valve links to each other with the middle gas supplementing opening A of compressing mechanism 1.
When above-described improvement project is further worked, utilize this first flow direction control valve under each function,, can improve the service behaviour of operation of air conditioning systems through middle gas supplementing opening A tonifying Qi in the compression process of compressing mechanism 1 of compressing mechanism 1.
During practical application, (for example: any one electric expansion valve) or in the flow control device substitutes any throttle mechanism that can adopt magnetic valve, have turn-off function in above-described first flow direction control valve, second flow direction control valve.
In the scheme of above-mentioned all embodiment of the utility model; Compressing mechanism 1 is except can adopting the single stage compress of being made up of at least one compressor; As illustrated in fig. 1 and 2; Also can adopt by at least one low-pressure stage compressor 11 and the twin-stage that at least one hiigh pressure stage compressor 1-2 forms and compress; At this moment, said low-pressure stage compressor 1-1 arrival end links to each other with cross valve 2 low pressure nodes 73 through the 63 pipeline 63, and the said low-pressure stage compressor 1-1 port of export links to each other with the high pressure node 71 of cross valve 2 through middle gas supplementing opening A, hiigh pressure stage compressor 1-2 arrival end, the hiigh pressure stage compressor 1-2 port of export, the 60 pipeline 60 successively.Can certainly adopt the single machine two-stage compress mode of forming by at least one compressor.
Any one or two whiles among the above low-pressure stage compressor 1-1, the hiigh pressure stage compressor 1-2, 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; Any one or two whiles in low-pressure stage compressor, the hiigh pressure stage compressor, 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, 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 made up of at least one variable conpacitance compressor, or the compressor bank of forming 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 is formed.
In the scheme of above-mentioned all embodiment, also can adopt magnetic valve, (for example: any one electric expansion valve) or in the flow control device substitutes any or four all check valves in described first check valve 21, second check valve 22, the 3rd check valve 23 and the 4th check valve 24 to have the throttle mechanism of turn-off function.
In the scheme of above-mentioned all embodiment, any one in first throttle mechanism 5, second throttle mechanism 7 is the throttle mechanism with turn-off function, for example: electric expansion valve.
In the scheme of above-mentioned all embodiment, user side heat exchanger 3 also can be the heat exchanger of cold-producing medium-air heat exchanger or other kind except being cold-producing medium-water-to-water heat exchanger; During as cold-producing medium-water-to-water heat exchanger, user side heat exchanger 3 adopts any one in plate type heat exchangers, volumetric heat exchanger, shell and tube exchanger or the double pipe heat exchanger usually.Heat source side heat exchanger 4 is except can being cold-producing medium-air heat exchanger; Also can be cold-producing medium-soil heat exchange device, 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, heat source side heat exchanger 4 adopts any one in plate type heat exchangers, volumetric heat exchanger, shell and tube exchanger or the double pipe heat exchanger usually.
Hot-water heater 8 be except can being cold-producing medium-water-to-water heat exchanger, and hot-water heater 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 use needs; During as the cold-producing medium water-to-water heat exchanger, hot-water heater 8 adopts any in volumetric heat exchanger, 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 user side heat exchanger 3, heat source side heat exchanger 4 or the hot-water heater 8 any one during as cold-producing medium-air heat exchanger; Usually adopt finned heat exchanger; The fin of said 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 scheme of above-mentioned all embodiment, the one or more even all water flow control valves in described first water flow control valve 121, second water flow control valve 122, the 3rd water flow control valve 123 can adopt magnetic valve or have in the flow control device of turn-off function any one and substitute.

Claims (10)

1. operation of air conditioning systems; Comprise compressing mechanism (1), cross valve (2), user side heat exchanger (3), heat source side heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises second throttle mechanism (7), hot-water heater (8), first check valve (21), second check valve (22) and the 3rd check valve (23); The high pressure node (71) of said cross valve (2) links to each other with compressing mechanism (1) port of export through the 60 pipeline (60); The low pressure node (73) of said cross valve (2) links to each other with compressing mechanism (1) arrival end through the 63 pipeline (63), and any node (72) in (2) two switching-overs of said cross valve node links to each other with the 64 pipeline (64) of said second check valve (22) port of export through the 64 pipeline (64), second check valve (22) port of export, second check valve (22) arrival end, the 66 pipeline (66), first throttle mechanism (5), the 62 pipeline (62), the 3rd check valve (23) arrival end, the 3rd check valve (23) port of export, first check valve (21) port of export, first check valve (21) arrival end successively;
Said hot-water heater (8) refrigerant side arrival end links to each other with pipeline between said first check valve (21) port of export and the 3rd check valve (23) port of export through the 69 pipeline (69), and said hot-water heater (8) the refrigerant side port of export links to each other with the 66 pipeline (66) between said second check valve (22) arrival end and the first throttle mechanism (5) through the 68 pipeline (68), second throttle mechanism (7), heat source side heat exchanger (4) arrival end, heat source side heat exchanger (4) port of export, the 70 pipeline (70) successively;
Another switching-over node (74) of said cross valve (2) links to each other through any connected node in two connected nodes of the 61 pipeline (61) and said user side heat exchanger (3) refrigerant side, and another connected node of said user side heat exchanger (3) refrigerant side links to each other with the 62 pipeline (62) between said the 3rd check valve (23) arrival end and the first throttle mechanism (5).
2. operation of air conditioning systems; Comprise compressing mechanism (1), cross valve (2), user side heat exchanger (3), heat source side heat exchanger (4) and first throttle mechanism (5), it is characterized in that: this operation of air conditioning systems also comprises second throttle mechanism (7), hot-water heater (8), liquid reservoir (9), first check valve (21), second check valve (22), the 3rd check valve (23) and the 4th check valve (24); The high pressure node (71) of said cross valve (2) links to each other with compressing mechanism (1) port of export through the 60 pipeline (60); The low pressure node (73) of said cross valve (2) links to each other with compressing mechanism (1) arrival end through the 63 pipeline (63), and any node (72) in (2) two switching-overs of said cross valve node links to each other with the 64 pipeline (64) of said second check valve (22) port of export through the 64 pipeline (64), second check valve (22) port of export, second check valve (22) arrival end, the 66 pipeline (66), the 4th check valve (24) arrival end, the 4th check valve (24) port of export, the 67 pipeline (67), liquid reservoir (9), the 65 pipeline (65), first throttle mechanism (5), the 62 pipeline (62), the 3rd check valve (23) arrival end, the 3rd check valve (23) port of export, first check valve (21) port of export, first check valve (21) arrival end successively;
Said hot-water heater (8) refrigerant side arrival end links to each other with pipeline between said first check valve (21) port of export and the 3rd check valve (23) port of export through the 69 pipeline (69), and said hot-water heater (8) the refrigerant side port of export links to each other with the 66 pipeline (66) between said second check valve (22) arrival end and the 4th check valve (24) arrival end through the 68 pipeline (68), second throttle mechanism (7), heat source side heat exchanger (4) arrival end, heat source side heat exchanger (4) port of export, the 70 pipeline (70) successively;
Another switching-over node (74) of said cross valve (2) links to each other through any connected node in two connected nodes of the 61 pipeline (61) and said user side heat exchanger (3) refrigerant side, and another connected node of said user side heat exchanger (3) refrigerant side links to each other with the 62 pipeline (62) between said the 3rd check valve (23) arrival end and the first throttle mechanism (5).
3. operation of air conditioning systems according to claim 1 and 2; It is characterized in that said compressing mechanism (1) is made up of at least one low-pressure stage compressor (1-1) and at least one hiigh pressure stage compressor (1-2); Said low-pressure stage compressor (1-1) arrival end links to each other with said cross valve (2) low pressure node (73) through the 63 pipeline (63), and gas supplementing opening (A), hiigh pressure stage compressor (1-2) arrival end, hiigh pressure stage compressor (1-2) port of export, the 60 pipeline (60) linked to each other with the high pressure node (71) of said cross valve (2) in the middle of said low-pressure stage compressor (1-1) port of export passed through successively.
4. operation of air conditioning systems according to claim 1 and 2; It is characterized in that an oil eliminator (90) arrival end links to each other with said compressing mechanism (1) port of export, said oil eliminator (90) port of export links to each other with the high pressure node (71) of said cross valve (2) through the 60 pipeline (60).
5. operation of air conditioning systems according to claim 1 and 2; It is characterized in that a gas-liquid separator (91) port of export links to each other with said compressing mechanism (1) arrival end, said gas-liquid separator (91) arrival end links to each other with said cross valve (2) low pressure node (73) through the 63 pipeline (63).
6. operation of air conditioning systems according to claim 1 and 2 is characterized in that said first throttle mechanism (5) is an electric expansion valve.
7. operation of air conditioning systems according to claim 1 and 2 is characterized in that said second throttle mechanism (7) is an electric expansion valve.
8. operation of air conditioning systems according to claim 2 is characterized in that an end of one first flow direction control valve links to each other with said liquid reservoir (9), and the other end of said first flow direction control valve links to each other with the middle gas supplementing opening (A) of said compressing mechanism (1).
9. operation of air conditioning systems according to claim 2; It is characterized in that one second flow direction control valve, one end links to each other with the 68 pipeline (68) between said hot-water heater (8) the refrigerant side port of export and second throttle mechanism (7), any place in the 65 pipeline (65) between the 67 pipeline (67), said liquid reservoir (9) and the first throttle mechanism (5) between the said second flow direction control valve other end and said liquid reservoir (9), said liquid reservoir (9) and the 4th check valve (24) port of export links to each other.
10. operation of air conditioning systems according to claim 9 is characterized in that an end of one first flow direction control valve links to each other with said liquid reservoir (9), and the other end of said first flow direction control valve links to each other with the middle gas supplementing opening (A) of said compressing mechanism (1).
CN 201220254371 2012-05-24 2012-05-24 Air conditioning refrigeration equipment Expired - Fee Related CN202581918U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148628A (en) * 2013-01-22 2013-06-12 刘雄 Double-heat source heat pump air conditioning equipment
CN103615837A (en) * 2013-06-16 2014-03-05 刘雄 Four-pipe air conditioning system
CN104197580A (en) * 2014-02-17 2014-12-10 刘雄 Air conditioner refrigeration device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148628A (en) * 2013-01-22 2013-06-12 刘雄 Double-heat source heat pump air conditioning equipment
CN103615837A (en) * 2013-06-16 2014-03-05 刘雄 Four-pipe air conditioning system
CN103615837B (en) * 2013-06-16 2017-10-24 刘雄 Four-pipe system air-conditioning system
CN104197580A (en) * 2014-02-17 2014-12-10 刘雄 Air conditioner refrigeration device

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