CN103322726A

CN103322726A - Four-pipe air-conditioning system

Info

Publication number: CN103322726A
Application number: CN201310259524.8A
Authority: CN
Inventors: 刘雄
Original assignee: 刘雄
Priority date: 2013-06-16
Filing date: 2013-06-16
Publication date: 2013-09-25
Also published as: CN103615837B; CN103615837A

Abstract

The invention discloses a four-pipe air-conditioning system which comprises a user-side heat exchanger of air-conditioning refrigeration equipment, a hot water heater of the air-conditioning refrigeration equipment, a first water flow control valve, a second water flow control valve, a third water flow control valve, a fourth water flow control valve, fifth water flow control valves, sixth water flow control valves, seventh water flow control valves, a subsystem connecting pipe, at least one cooler and at least one reheater. The user-side heat exchanger of the air-conditioning refrigeration equipment, the fourth water flow control valve, the fifth water flow control valves and the coolers form a freeze water subsystem of the four-pipe air-conditioning system; the hot water heater of the air-conditioning refrigeration equipment, the first water flow control valve, the sixth water flow control valves and the reheaters form a hot water subsystem of the four-pipe air-conditioning system. The four-pipe air-conditioning system has the advantages that cooling and heating requirements on the air-conditioning system in an air treatment procedure can be simultaneously met by the single air-conditioning refrigeration equipment, and the four-pipe air-conditioning system is particularly suitable for air-conditioned places with requirements on the temperature and the humidity and the requirement that various air-conditioned rooms are independently controlled.

Description

Four control air-conditioning systems

Technical field

The present invention relates to the four control air-conditioning systems that a kind of operation of air conditioning systems by having while heating and cooling function drives, belong to air-conditioning technical field.

Background technology

The present patent application people is disclosed on 08 01st, 2012, application number is that 201210093904.4 patent of invention has proposed a kind of airhandling equipment water system, its system forms and air conditioner unit such as Fig. 7, shown in 8, as can be seen from the figure the air conditioner unit of this airhandling equipment water system (as shown in Figure 8) adds in the process of hot-air in the winter time, the hot water that temperature is higher at first enters the lower intake air of cooler 100 and temperature and carries out heat exchange, emit enter again after the heat water temperature reduces reheater 30 with from cooler 100, air after temperature raises carries out heat exchange, this shows, in hot water and the air heat exchanging process in air conditioner unit (as shown in Figure 8), owing to being not countercurrent flow, the entrained heat of hot water can not effectively be emitted, can not obtain higher temperature after air is heated simultaneously, therefore affected the operating efficiency of whole airhandling equipment water system.

Summary of the invention

The purpose of this invention is to provide a kind ofly provides cold and hot amount simultaneously by operation of air conditioning systems, and in air conditioner unit heating process in winter, can realize four control air-conditioning systems of countercurrent flow process between water and the air

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 four control air-conditioning systems comprise user's side heat exchanger (3) of operation of air conditioning systems, hot-water heater (8), the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 4th water flow control valve (124), the 5th water flow control valve (125), subsystem tube connector (104), at least one cooler (100) and at least one reheater (30) of operation of air conditioning systems;

It is characterized in that: this four control air-conditioning system also comprises the 6th water flow control valve (126) and the 7th water flow control valve (127);

User's side heat exchanger (3) of described operation of air conditioning systems, the 4th water flow control valve (124), the 5th water flow control valve (125) and at least one cooler (100) consist of the chilled water subsystem of four control air-conditioning systems;

Described user's side heat exchanger (3) water side entrance end is successively through the 103 pipeline (103), the 4th water flow control valve (124) port of export, the 4th water flow control valve (124) arrival end links to each other with chilled water backwater main (102), described user's side heat exchanger (3) water side outlet end links to each other with chilled water water main (101), described cooler (100) water side outlet end links to each other with chilled water backwater main (102) by the 113 pipeline (113), and described cooler (100) water side entrance end passes through described the 5th water flow control valve (125) port of export successively, the 5th water flow control valve (125) arrival end links to each other with described chilled water water main (101);

The hot-water heater of described operation of air conditioning systems (8), the first water flow control valve (121), the 6th water flow control valve (126) and at least one reheater (30) consist of the hot water subsystem of four control air-conditioning systems;

Described hot-water heater (8) water side entrance end links to each other with hot water backwater's main (108), described hot-water heater (8) water side outlet end is successively through the 105 pipeline (105), the first water flow control valve (121) arrival end, the first water flow control valve (121) port of export links to each other with hot water water main (109), described reheater (30) water side entrance end links to each other with described hot water water main (109) by the 106 pipeline (106), and described reheater (30) water side outlet end is successively through the 112 pipeline (112), the 6th water flow control valve (126) links to each other with described hot water backwater's main (108);

Described the 7th water flow control valve (127) one ends link to each other with the 112 pipeline (112) of described reheater (30) water side outlet end, and described the 7th water flow control valve (127) other end links to each other with pipeline between described cooler (100) water side entrance end and the 5th water flow control valve (125) port of export;

Described the second water flow control valve (122) one ends link to each other with described chilled water water main (101), and described the second water flow control valve (122) other end links to each other with described the first water flow control valve (121) port of export pipeline;

Described the 3rd water flow control valve (123) one ends link to each other with described the 4th water flow control valve (124) arrival end pipeline, and described the 3rd water flow control valve (123) other end links to each other with described hot-water heater (8) water side entrance end pipeline;

Described subsystem tube connector (104) one ends link to each other with the 103 pipeline (103) between described user's side heat exchanger (3) water side entrance end and the 4th water flow control valve (124) port of export, and described subsystem tube connector (104) other end links to each other with the 105 pipeline (105) between described hot-water heater (8) water side outlet end and the first water flow control valve (121) arrival end.

2, a kind of four control air-conditioning systems comprise user's side heat exchanger (3) of operation of air conditioning systems, hot-water heater (8), the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 4th water flow control valve (124), the 5th water flow control valve (125), subsystem tube connector (104), at least one cooler (100) and at least one reheater (30) of operation of air conditioning systems;

Described the second water flow control valve (122) one ends link to each other with the 103 pipeline (103) between described user's side heat exchanger (3) water side entrance end and the 4th water flow control valve (124) port of export, and described the second water flow control valve (122) other end links to each other with the 105 pipeline (105) between described hot-water heater (8) water side outlet end and the first water flow control valve (121) arrival end;

Described subsystem tube connector (104) one ends link to each other with described chilled water water main (101), and described subsystem tube connector (104) other end links to each other with described the first water flow control valve (121) port of export pipeline.

3, a kind of four control air-conditioning systems comprise user's side heat exchanger (3) of operation of air conditioning systems, hot-water heater (8), the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 5th water flow control valve (125), the 4th water flow control valve (124), subsystem tube connector (104), at least one cooler (100) and at least one reheater (30) of operation of air conditioning systems;

Described the 3rd water flow control valve (123) one ends link to each other with described chilled water water main (101), and described the 3rd water flow control valve (123) other end links to each other with described the first water flow control valve (121) port of export pipeline;

Described subsystem tube connector (104) one ends link to each other with described the 4th water flow control valve (124) arrival end pipeline, and described subsystem tube connector (104) other end links to each other with described hot-water heater (8) water side entrance end pipeline.

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

1. can satisfy simultaneously the cold and hot amount demand of air-conditioning system in air handling process with an operation of air conditioning systems;

2. in the air conditioner unit of air-conditioning system, can realize the countercurrent flow process between hot water and the heated air winter;

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

4. the present invention is applicable to the central air conditioner system of industry and civil area, is specially adapted to humidity and temperature is had the occasion of demand.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention 1 four control air-conditioning systems;

Fig. 2 is the structural representation of the embodiment of the invention 2 four control air-conditioning systems;

Fig. 3 is the structural representation of the embodiment of the invention 3 four control air-conditioning systems;

Fig. 4 is the structural representation of the embodiment of the invention 4 four control air-conditioning systems;

Fig. 5 is the structural representation of the embodiment of the invention 5 four control air-conditioning systems;

Fig. 6 is air conditioner unit 110 structural representations among the present invention;

Fig. 7 is the airhandling equipment water system structural representation of prior art of the present invention;

Fig. 8 is the air conditioner unit structural representation of prior art of the present invention;

Fig. 9 is the operation of air conditioning systems structural representation that matches with the present invention;

Figure 10 is the structural representation of the embodiment of the invention 6 four control air-conditioning systems;

Figure 11 is the structural representation of the embodiment of the invention 7 four control air-conditioning systems.

The specific embodiment

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

Shown in Figure 9 is a kind of operation of air conditioning systems that supplies simultaneously cold-peace heat supply function that has, be used to the embodiment of the invention 1 to 5 respectively described four control air-conditioning systems the required cold and hot amount of air of processing is provided.

Operation of air conditioning systems shown in Figure 9 comprises following part: compressing mechanism 1, cross valve 2, first throttle mechanism 5, the second throttle mechanism 7, user's side heat exchanger 3, heat source side heat exchanger 4, hot-water heater 8, the first check valve 21, the second check valve 22 and the 3rd check valve 23; First throttle mechanism 5, the second throttle mechanism 7 are electric expansion valve; User's side heat exchanger 3 is cold-producing medium-water-to-water heat exchangers, and the needs according to processing air can be used for producing chilled water or hot water; Heat source side heat exchanger 4 is cold-producing medium-air heat exchangers, both can be used as condenser, distributes the condensation heat that refrigeration produces in environment, also can be used as evaporimeter, absorbs heat from environment; Hot-water heater 8 also is a cold-producing medium-water-to-water heat exchanger, is used to the whole year four control air-conditioning systems to produce hot water.

The connected mode of each part of operation of air conditioning systems shown in Figure 9 is as described below:

The high pressure node 71 of cross valve 2 links to each other with compressing mechanism 1 port of export by the 60 pipeline 60, the low pressure node 73 of cross valve 2 links to each other with compressing mechanism 1 arrival end by the 63 pipeline 63, and any one node 72 in 2 two commutations of cross valve node is successively by the 64 pipeline 64, the second check valve 22 ports of export, the second check valve 22 arrival ends, the 66 pipeline 66, first throttle mechanism 5, the 62 pipeline 62, the 3rd check valve 23 arrival ends, the 3rd check valve 23 ports of export, the first check valve 21 ports of export, the first check valve 21 arrival ends link to each other with the 64 pipeline 64 of the second check valve 22 ports of export;

Hot-water heater 8 refrigerant side arrival ends link to each other with pipeline between the first check valve 21 ports of export and the 3rd check valve 23 ports of export by the 69 pipeline 69, and the hot-water heater 8 refrigerant side ports of export link to each other with the 66 pipeline 66 between the second check valve 22 arrival ends and the first throttle mechanism 5 through the 68 pipeline 68, the second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline 70 successively;

Another commutation node 74 of cross valve 2 links to each other by any one connected node in two connected nodes of the 61 pipeline 61 and user's side heat exchanger 3 refrigerant sides, and another connected node of user's side heat exchanger 3 refrigerant sides links to each other with the 62 pipeline 62 between the 3rd check valve 23 arrival ends and the first throttle mechanism 5.

The air conditioner unit 110 that shown in Figure 6 is in the four control air-conditioning systems of the present invention, utilize chilled water that operation of air conditioning systems shown in Figure 9 produces and hot water, air is processed; It is applicable to respectively described all four control air-conditioning systems of the embodiment of the invention 1 to 5.

As shown in Figure 6, air conditioner unit 110 comprises at least one cooler 100 and at least one reheater 30; The composition proposal of air conditioner unit 110 is: cooler 100, reheater 30 are arranged in the same air conditioner unit 110, and along the flow direction of air, reheater 30 is in the downwind side of cooler 100.

In the course of work of air conditioner unit 110, for wet bulb and dry-bulb temperature to processed air are controlled, as shown in Figure 6, have additional two temperature-detecting devices, that is: the first temperature-detecting device 91 and the second temperature-detecting device 92; During work, the first temperature-detecting device 91 is for detection of the wet-bulb temperature of processed air, and the second temperature-detecting device 92 is for detection of the dry-bulb temperature of processed air.

The first temperature-detecting device 91 and the setting position of the second temperature-detecting device 92 in air conditioner unit 110 have following several scheme:

1) along the flow direction of air, the first temperature-detecting device 91, the second temperature-detecting device 92 all are arranged at the air side of reheater 30;

2) along the flow direction of air, the first temperature-detecting device 91 is arranged at the inlet side of cooler 100, and the second temperature-detecting device 92 is arranged at the air side of reheater 30;

3) along the flow direction of air, the first temperature-detecting device 91 is arranged at the air side of cooler 100, and the second temperature-detecting device 92 is arranged at the air side of reheater 30;

4) along the flow direction of air, the first temperature-detecting device 91, the second temperature-detecting device 92 all are arranged at the inlet side of cooler 100, as shown in Figure 6;

5) along the flow direction of air, the first temperature-detecting device 91 is arranged at the air side of cooler 100, and the second temperature-detecting device 92 is arranged at the inlet side of cooler 100;

6) along the flow direction of air, the first temperature-detecting device 91 is arranged at the air side of reheater 30, and the second temperature-detecting device 92 is arranged at the inlet side of cooler 100.

Embodiment 1

Four control air-conditioning systems shown in Figure 1 comprise chilled water subsystem and hot water subsystem two parts.Two sub-systems comprise following part: user's side heat exchanger 3 of operation of air conditioning systems, the hot-water heater 8 of operation of air conditioning systems, reheater 30, hot water circulating pump 50, air conditioner water circulating pump 51, cooler 100, the first water flow control valve 121, the second water flow control valve 122, the 3rd water flow control valve 123, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127.

In four control air-conditioning systems shown in Figure 1, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are: air conditioner water circulating pump 51 ports of export link to each other with the 3rd water flow control valve 123 with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with the 3rd water flow control valve 123 with hot-water heater 8 water side entrance ends.

In the whole year operation process, four control air-conditioning systems shown in Figure 1, and the operation of air conditioning systems shown in Figure 9 that cold and hot amount is provided for it in the course of the work, can realize following functions, when realizing each function, the workflow of the associated four control air-conditioning systems shown in Figure 1 of operation of air conditioning systems shown in Figure 9 and the present embodiment is as described below respectively.

(1) summer is to cooling or the dehumidification function (only controlling dry-bulb temperature or the wet-bulb temperature of air) of air

Under this function, 110 pairs of processed air of air conditioner unit shown in Figure 6 cool off or cooling and dehumidifying is processed, and are cooled or the air of cooling and dehumidifying after processing do not require again heat.

Shown in Fig. 1 and 9, under this function, user's side heat exchanger 3 is for the production of chilled water, and the chilled water of producing cools off by 100 pairs of air of the cooler in the air conditioner unit 110 or cooling and dehumidifying is processed; The condensation heat that operation of air conditioning systems produces in producing the chilled water process does not reclaim, but all is discharged in the surrounding environment by heat source side heat exchanger 4.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; Hot water circulating pump 50 is not worked, 51 normal operations of air conditioner water circulating pump; The first water flow control valve 121, the second water flow control valve 122, the 3rd water flow control valve 123, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The 4th water flow control valve 124 standard-sized sheets; 125 normal operations of the 5th water flow control valve, common the 5th water flow control valve 125 is two-way electric control valve (or being called straight-through electric control valve), during work, is used for regulating the chilled-water flow that enters cooler 100.

Under this function, the workflow of operation of air conditioning systems shown in Figure 9 is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 64 pipeline 64, the first check valve 21 arrival ends, the 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, the second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline 70, the 66 pipeline 66, first throttle mechanism 5, the 62 pipeline 62, enter the refrigerant side of user's side heat exchanger 3, carry out heat exchange by user's side heat exchanger 3 and water; Cold-producing medium absorb heat, from the refrigerant side of user's side heat exchanger 3 out after, again successively through the 61 pipeline 61, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end, so far finish once circulation.

Under this function, hot water subsystem in the four control air-conditioning systems shown in Figure 1 is not worked, the workflow of the chilled water subsystem in the four control air-conditioning systems shown in Figure 1 is as described below: after chilled water is discharged from user's side heat exchanger 3 water side outlet ends, pass through successively chilled water water main 101, the 5th water flow control valve 125 arrival ends, the 5th water flow control valve 125 ports of export, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, the 4th water flow control valve 124 arrival ends, the 4th water flow control valve 124 ports of export, the 103 pipeline 103 is got back to user's side heat exchanger 3 water side entrance ends.

Control method when four control air-conditioning systems shown in Figure 1 are worked under this function is as described below.

Scheme one

When air conditioner unit 110 is that the dry-bulb temperature of processed air is controlled, and air conditioner water circulating pump 51 is the constant speed water pump, and when compressing mechanism 1 was frequency-changeable compressor, its control method was as follows:

When 1) working, the dry-bulb temperature of the processed air that the 5th water flow control valve 125 is detected with the second temperature-detecting device 92 is as control signal, regulate the valve opening size of the 5th water flow control valve 125, that is: the chilled-water flow of cooler 100 is passed through in adjusting, thereby changes the cold of cooling-air; During work, when the dry-bulb temperature of the processed air that detects when the second temperature-detecting device 92 is lower than the dry-bulb temperature desired value, then reduce the valve opening of the 5th water flow control valve 125, when the dry-bulb temperature of the processed air that detects when the second temperature-detecting device 92 is higher than the dry-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

2) in the course of work, the chilled water supply water temperature that is detected with the chilled water supply water temperature sensor 400 that is located at user's side heat exchanger 3 water side outlet ends is as control signal, by the operating frequency of master controller 200 control compressing mechanisms 1, that is: compressing mechanism 1 is controlled the chilled water supply water temperature of user's side heat exchanger 3 water side outlet ends in the mode of frequency conversion.During work, when the actual chilled water supply water temperature of the user's side heat exchanger 3 water side outlet ends that detect when chilled water supply water temperature sensor 400 is higher than chilled water supply water temperature desired value, then increase the operating frequency of compressing mechanisms 1 by master controller 200; When the actual chilled water supply water temperature of the user's side heat exchanger 3 water side outlet ends that detect when chilled water supply water temperature sensor 400 is lower than chilled water supply water temperature desired value, then reduce the operating frequency of compressing mechanism 1 by master controller 200.

Scheme two

Under this function, when air conditioner unit 110 is that the wet-bulb temperature of processed air is controlled, and air conditioner water circulating pump 51 is the constant speed water pump, and when compressing mechanism 1 was frequency-changeable compressor, its control method was as follows:

When 1) working, the wet-bulb temperature of the processed air that the 5th water flow control valve 125 is detected with the first temperature-detecting device 91 is as control signal, regulate the valve opening size of the 5th water flow control valve 125 by air conditioner unit controller 300, that is: the chilled-water flow of cooler 100 is passed through in adjusting, thereby regulates the cold of cooling-air; During work, the actual wet-bulb temperature data of the processed air that the first temperature-detecting device 91 detects are delivered to air conditioner unit controller 300, when the actual wet-bulb temperature of the processed air that detects when the first temperature-detecting device 91 is lower than the wet-bulb temperature desired value, then reduce the valve opening of the 5th water flow control valve 125 by air conditioner unit controller 300, when the actual wet-bulb temperature of the processed air that detects when the first temperature-detecting device 91 is higher than the wet-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125 by air conditioner unit controller 300.

In above two control programs, air conditioner water circulating pump 51 is the constant speed water pump, and requiring the chilled-water flow by user's side heat exchanger 3 water sides is definite value, therefore, when 125 pairs of chilled-water flows of the 5th water flow control valve carry out the variable-flow adjusting, as shown in Figure 1, in the course of work, unnecessary chilled water is to be back to the chilled water backwater main 102 from chilled water water main 101 bypass by bypass regulator valve 130, take the chilled-water flow of keeping user's side heat exchanger 3 water sides as definite value.

At this moment, the connected mode of bypass regulator valve 130 in system is: bypass regulator valve 130 arrival ends link to each other with chilled water water main 101, and bypass regulator valve 130 ports of export link to each other with chilled water backwater main 102.

During work, the first pressure sensor 41 is for detection of the chilled water pressure of supply water on the chilled water water main 101; The second pressure sensor 42 is for detection of the chilled water pressure of return water on the chilled water backwater main 102; The chilled water that detects supplies, pressure of return water all is fed to master controller 200, and the actual chilled water that confession, the pressure of return water that master controller 200 utilizes the first pressure sensor 41, the second pressure sensor 42 to detect calculates between chilled water water main 101 and the chilled water backwater main 102 supplies backwater pressure reduction.

In the course of the work, when actual chilled water is lower than chilled water for backwater pressure reduction desired value for backwater pressure reduction, then close by master controller 200 control bypass regulator valves 130, when actual chilled water is higher than chilled water for backwater pressure reduction desired value for backwater pressure reduction, the valve opening of then regulating bypass regulator valve 130 by master controller 200 makes the actual chilled water between chilled water water main 101 and the chilled water backwater main 102 equal chilled water for backwater pressure reduction desired value for backwater pressure reduction.

When working under this function, above-described control method is applicable to the described scheme of all embodiment of the present invention.

(2) summer and transition season constant temperature and humidity function (dry-bulb temperature, wet-bulb temperature to air are controlled simultaneously)

Under this function, air conditioner unit 110 carries out cooling and dehumidifying to processed air first to be processed, and the air after the dehumidification treatments that is cooled is heated again, reach the requirement wind pushing temperature after, be admitted to again air-conditioned room.

Shown in Fig. 1 and 9, under this function, user's side heat exchanger 3 is for the production of chilled water, and the chilled water of producing carries out cooling and dehumidifying by 100 pairs of processed air of the cooler in the air conditioner unit 110 to be processed; Hot-water heater 8 utilizes operation of air conditioning systems shown in Figure 9 in the process of producing chilled water, the partial condensation heat that produces is produced hot water, reheater 30 in the hot water recycling air conditioner unit 110 of producing carries out again heat to the air after the dehumidification treatments that is cooled; Another partial condensation heat enters environment by heat source side heat exchanger 4.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; Hot water circulating pump 50,51 normal operations of air conditioner water circulating pump; The first water flow control valve 121, the 4th water flow control valve 124 standard-sized sheets; The second water flow control valve 122, the 3rd water flow control valve 123, the 7th water flow control valve 127 are closed; The 5th water flow control valve 125,126 normal operations of the 6th water flow control valve, common the 5th water flow control valve 125, the 6th water flow control valve 126 all are two-way electric control valve (or being called straight-through electric control valve); During work, the 5th water flow control valve 125 is used for regulating the chilled-water flow that enters cooler 100, and the 6th water flow control valve 126 is used for regulating the hot water flow that enters reheater 30.

Under this function, the workflow of operation of air conditioning systems shown in Figure 9 is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 72, the 64 pipeline 64, the first check valve 21 arrival ends, the 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, the second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline 70, the 66 pipeline 66, first throttle mechanism 5, the 62 pipeline 62, enter the refrigerant side of user's side heat exchanger 3, carry out heat exchange by user's side heat exchanger 3 and water; Cold-producing medium absorb heat, from the refrigerant side of user's side heat exchanger 3 out after, successively through the 61 pipeline 61, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.

Under this function, the hot water subsystem of four control air-conditioning systems shown in Figure 1 and the workflow of chilled water subsystem are as described below respectively.

The workflow of hot water subsystem is: after hot water is discharged from hot-water heater 8 water side outlet ends, through the 105 pipeline 105, the first water flow control valve 121 arrival ends, the first water flow control valve 121 ports of export, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 112 pipeline 112, the 6th water flow control valve 126, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export, get back to hot-water heater 8 water side entrance ends successively.

The workflow of chilled water subsystem is: after chilled water is discharged from user's side heat exchanger 3 water side outlet ends, pass through successively chilled water water main 101, the 5th water flow control valve 125 arrival ends, the 5th water flow control valve 125 ports of export, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, the 4th water flow control valve 124 arrival ends, the 4th water flow control valve 124 ports of export, the 103 pipeline 103 is got back to user's side heat exchanger 3 water side entrance ends.

Under this function, when hot water circulating pump 50, air conditioner water circulating pump 51 are the constant speed water pump, when compressing mechanism 1 was frequency-changeable compressor, the control method of scheme shown in Figure 1 was as follows:

When 2) working, the dry-bulb temperature of the processed air that the 6th water flow control valve 126 is detected with the second temperature-detecting device 92 is as control signal, regulate the valve opening size of the 6th water flow control valve 126 by air conditioner unit controller 300, that is: the hot water flow of reheater 30 is passed through in adjusting, thereby regulates the heat that adds hot-air; During work, the actual dry-bulb temperature data of the processed air that the second temperature-detecting device 92 detects are delivered to air conditioner unit controller 300, when the actual dry-bulb temperature of the processed air that detects when the second temperature-detecting device 92 is lower than the dry-bulb temperature desired value, then increase the valve opening of the 6th water flow control valve 126 by air conditioner unit controller 300, when the actual dry-bulb temperature of the processed air that detects when the second temperature-detecting device 92 is higher than the dry-bulb temperature desired value, then reduce the valve opening of the 6th water flow control valve 126 by air conditioner unit controller 300.

3) in the course of work, the chilled water supply water temperature that is detected with the chilled water supply water temperature sensor 400 that is located at user's side heat exchanger 3 water side outlet ends is as control signal, by the operating frequency of master controller 200 control compressing mechanisms 1, that is: compressing mechanism 1 is controlled the chilled water supply water temperature of user's side heat exchanger 3 water side outlet ends in the mode of frequency conversion.During work, when the actual chilled water supply water temperature of the user's side heat exchanger 3 water side outlet ends that detect when chilled water supply water temperature sensor 400 is higher than chilled water supply water temperature desired value, then increase the operating frequency of compressing mechanisms 1 by master controller 200; When the actual chilled water supply water temperature of the user's side heat exchanger 3 water side outlet ends that detect when chilled water supply water temperature sensor 400 is lower than chilled water supply water temperature desired value, then reduce the operating frequency of compressing mechanism 1 by master controller 200.

Under this function, the effect of bypass regulator valve 130 and control method are identical to cooling or the dehumidification function of air with summer.In addition, when working under this function, above-described control method is applicable to the described scheme of all embodiment of the present invention.

(3) winter is to the heating function of air

Shown in Fig. 1 and 9, under this function, heat source side heat exchanger 4 draw heat from environment, utilize the heat of drawing, produce hot water in hot-water heater 8 and user's side heat exchanger 3, the hot water of producing heats processed air in air conditioner unit 110 by cooler 100 and reheater 30 again.

During work, 51 normal operations of air conditioner water circulating pump, hot water circulating pump 50 is not worked; First throttle mechanism 5 closes, 7 normal operations of the second throttle mechanism; The first water flow control valve 121, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126 are closed; The second water flow control valve 122, the 3rd water flow control valve 123 standard-sized sheets; 127 normal operations of the 7th water flow control valve, common the 7th water flow control valve 127 is two-way electric control valve (or being called straight-through electric control valve); During work, the 7th water flow control valve 127 is used for regulating the hot water flow by cooler 100 and reheater 30.

Under this function, the workflow of operation of air conditioning systems shown in Figure 9 is: after cold-producing medium is discharged from compressing mechanism 1 port of export, successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 commutation nodes 74, the 61 pipeline 61, enter the refrigerant side of user's side heat exchanger 3 and the water in the airhandling equipment water system and carry out heat exchange, emit heat, from the refrigerant side of user's side heat exchanger 3 out after, again 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, the second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline 70, the 66 pipeline 66, the second check valve 22 arrival ends, the second check valve 22 ports of export, the 64 pipeline 64, cross valve 2 commutation nodes 72, cross valve 2 low pressure nodes 73, the 63 pipeline 63 is got back to compressing mechanism 1 arrival end.

Under this function, the workflow of four control air-conditioning systems shown in Figure 1 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, subsystem tube connector 104, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, the second water flow control valve 122, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 7th water flow control valve 127, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, the 3rd water flow control valve 123 is got back to hot-water heater 8 water side entrance ends.

Under this function, when air conditioner water circulating pump 51 is variable frequency pump, when compressing mechanism 1 was frequency-changeable compressor, the control method of four control air-conditioning systems shown in Figure 1 was as follows:

1) master controller 200 control bypass regulator valves 130 are in closed condition.

When 2) working, the dry-bulb temperature of the processed air that the 7th water flow control valve 127 is detected with the second temperature-detecting device 92 is as control signal, regulate the valve opening size of the 7th water flow control valve 127 by air conditioner unit controller 300, that is: the hot water flow of reheater 30 and cooler 100 is passed through in adjusting, thereby regulates the heat that adds hot-air; During work, the actual dry-bulb temperature data of the processed air that the second temperature-detecting device 92 detects are delivered to air conditioner unit controller 300, when the actual dry-bulb temperature of the processed air that detects when the second temperature-detecting device 92 is lower than the dry-bulb temperature desired value, then increase the valve opening of the 7th water flow control valve 127 by air conditioner unit controller 300, when the actual dry-bulb temperature of the processed air that detects when the second temperature-detecting device 92 is higher than the dry-bulb temperature desired value, then reduce the valve opening of the 7th water flow control valve 127 by air conditioner unit controller 300.

3) in the course of work, the hot water supply water temperature that is detected with the hot water supply water temperature sensor 500 that is located on the hot water water main 109 is as control signal, by the operating frequency of master controller 200 control compressing mechanisms 1, that is: compressing mechanism 1 is controlled the hot water supply water temperature in the mode of frequency conversion.During work, when the actual hot water supply water temperature that detects when hot water supply water temperature sensor 500 is higher than hot water supply water temperature desired value, then reduce the operating frequency of compressing mechanism 1 by master controller 200; When the actual hot water supply water temperature that detects when hot water supply water temperature sensor 500 is lower than hot water supply water temperature desired value, then increase the operating frequency of compressing mechanisms 1 by master controller 200.

4) in the course of work, the first pressure sensor 41, the chilled water water main 101 that the second pressure sensor 42 difference are detected and the confession on the chilled water backwater main 102, the pressure of return water signal all is delivered to master controller 200, master controller 200 utilize these two pressure signals calculate between chilled water water main 101 and the chilled water backwater main 102 for backwater pressure reduction, supply backwater pressure reduction as control signal with this, by the operating frequency of master controller 200 control air conditioner water circulating pumps 51, that is: air conditioner water circulating pump 51 is controlled hot water flow in the mode of frequency conversion.During work, when master controller 200 detected actual confession backwater pressure reduction are higher than for backwater pressure reduction desired value, then reduce the operating frequency of air conditioner water circulating pump 51 by master controller 200; When master controller 200 detected actual confession backwater pressure reduction are lower than for backwater pressure reduction desired value, then increase the operating frequency of air conditioner water circulating pumps 51 by master controller 200.

Under this function, above-described control method is applicable to all schemes of the present embodiment, and embodiment 2 described all schemes.

(4) winter frost removing function

Under this function, stop the Air Flow of air conditioner unit 110.Shown in Fig. 1 and 9, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 9 and its summer are identical to the workflow of the cooling of air or dehumidification function.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 commutation nodes 72, the 64 pipeline 64, the first check valve 21 arrival ends, the 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, the second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline 70, the 66 pipeline 66, first throttle mechanism 5, the 62 pipeline 62, enter the refrigerant side of user's side heat exchanger 3, carry out heat exchange by the water in user's side heat exchanger 3 and the four control air-conditioning systems; Cold-producing medium absorb heat, from the refrigerant side of user's side heat exchanger 3 out after, successively through the 61 pipeline 61, cross valve 2 commutation nodes 74, cross valve 2 low pressure nodes 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; 51 normal operations of air conditioner water circulating pump, hot water circulating pump 50 is not worked; The first water flow control valve 121, the second water flow control valve 122, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The 3rd water flow control valve 123 standard-sized sheets; Master controller 200 control bypass regulator valves 130 are in full-gear.

During work, circulating hot water by 51 drivings of air conditioner water circulating pump, the refrigerant vapour heating that compressed mechanism 1 discharges in hot-water heater 8, but in user's side heat exchanger 3, heated hot water is emitted again heat, the heat that compressing mechanism 1 wasted work produces in this process and the heat of drawing from four control air-conditioning systems are used for defrost by cold-producing medium in heat source side heat exchanger 4.

In the course of the work, the workflow of four control air-conditioning systems shown in Figure 1 is: after hot water is discharged from hot-water heater 8 water side outlet ends, through the 105 pipeline 105, subsystem tube connector 104, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, bypass regulator valve 130, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, the 3rd water flow control valve 123, get back to hot-water heater 8 water side entrance ends successively.

Air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system, except scheme shown in Figure 1, in Practical Project, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system also have following change programme, these change programmes also can realize the above-described all functions of four control air-conditioning systems that the present embodiment is shown in Figure 1, and when realizing each function, its closed circuit is identical with control method, its difference only is in the cyclic process, and air conditioner water circulating pump 51, hot-water circulating pump 50 residing position in circulation is different.

Air conditioner water circulating pump 51, hot-water circulating pump 50 change programme of installation site in system shown in Figure 1 is as described below:

1) air conditioner water circulating pump 51 ports of export link to each other with the 3rd water flow control valve 123 with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with the 105 pipeline 105, and hot-water circulating pump 50 ports of export link to each other with the first water flow control valve 121 arrival ends.

2) air conditioner water circulating pump 51 ports of export link to each other with the 3rd water flow control valve 123 with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with the first water flow control valve 121 ports of export, and hot-water circulating pump 50 ports of export link to each other with hot water water main 109.

3) air conditioner water circulating pump 51 ports of export link to each other with user's side heat exchanger 3 water side entrance ends, and air conditioner water circulating pump 51 arrival ends link to each other with the 103 pipeline 103; Hot-water circulating pump 50 arrival ends link to each other with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with the 3rd water flow control valve 123 with hot-water heater 8 water side entrance ends.

4) air conditioner water circulating pump 51 ports of export link to each other with user's side heat exchanger 3 water side entrance ends, and air conditioner water circulating pump 51 arrival ends link to each other with the 103 pipeline 103; Hot-water circulating pump 50 arrival ends link to each other with the 105 pipeline 105, and hot-water circulating pump 50 ports of export link to each other with the first water flow control valve 121 arrival ends.

5) air conditioner water circulating pump 51 ports of export link to each other with user's side heat exchanger 3 water side entrance ends, and air conditioner water circulating pump 51 arrival ends link to each other with the 103 pipeline 103; Hot-water circulating pump 50 arrival ends link to each other with the first water flow control valve 121 ports of export, and hot-water circulating pump 50 ports of export link to each other with hot water water main 109.

6) air conditioner water circulating pump 51 ports of export link to each other with chilled water water main 101, and air conditioner water circulating pump 51 arrival ends link to each other with user's side heat exchanger 3 water side outlet ends; Hot-water circulating pump 50 arrival ends link to each other with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with the 3rd water flow control valve 123 with hot-water heater 8 water side entrance ends.

7) air conditioner water circulating pump 51 ports of export link to each other with chilled water water main 101, and air conditioner water circulating pump 51 arrival ends link to each other with user's side heat exchanger 3 water side outlet ends; Hot-water circulating pump 50 arrival ends link to each other with the 105 pipeline 105, and hot-water circulating pump 50 ports of export link to each other with the first water flow control valve 121 arrival ends.

8) air conditioner water circulating pump 51 ports of export link to each other with chilled water water main 101, and air conditioner water circulating pump 51 arrival ends link to each other with user's side heat exchanger 3 water side outlet ends; Hot-water circulating pump 50 arrival ends link to each other with the first water flow control valve 121 ports of export, and hot-water circulating pump 50 ports of export link to each other with hot water water main 109.

The above-described air conditioner water circulating pump 51 of the present embodiment, hot-water circulating pump 50 all schemes of installation site in system also are applicable to embodiments of the invention 2 Fig. 2 and the described four control air-conditioning systems of embodiment 6 Figure 10.

Embodiment 2

As shown in Figure 2, the difference of it and embodiment 1 four control air-conditioning systems shown in Figure 1 is: subsystem tube connector 104 and the installation site of the second water flow control valve 122 in four control air-conditioning systems are exchanged.In system shown in Figure 2, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are identical with scheme shown in Figure 1.

Four control air-conditioning systems and operation of air conditioning systems shown in Figure 9 shown in Figure 2 are combined, and also can realize all functions of embodiment 1 scheme shown in Figure 1, and the control method when realizing each function is also identical; In addition, when realizing identical function, the workflow of operation of air conditioning systems shown in Figure 9 is also identical with embodiment 1.

System shown in Figure 2 is realizing that summer is identical to cooling or workflow and the workflow of embodiment 1 system shown in Figure 1 under above-mentioned two functions under dehumidification function, summer and the transition season constant temperature and humidity function of air; And can adopt identical control method.System shown in Figure 2 is realizing that winter is as described below to the heating function of air, workflow under the winter frost removing function.

(1) winter is to the heating function of air

Shown in Fig. 2 and 9, under this function, heat source side heat exchanger 4 draw heat from environment, utilize the heat of drawing, produce hot water in hot-water heater 8 and user's side heat exchanger 3, the hot water of producing heats processed air in air conditioner unit 110 by cooler 100 and reheater 30 again.

Under this function, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.

Under this function, the workflow of four control air-conditioning systems shown in Figure 2 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, subsystem tube connector 104, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 7th water flow control valve 127, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, the 3rd water flow control valve 123 is got back to hot-water heater 8 water side entrance ends.

In the course of work under this function, when air conditioner water circulating pump 51 is variable frequency pump, when compressing mechanism 1 was frequency-changeable compressor, the control method the when control method of the present embodiment four control air-conditioning systems shown in Figure 2 is worked under this function with embodiment 1 scheme shown in Figure 1 was identical.

(2) winter frost removing function

Under this function, stop the Air Flow of air conditioner unit 110.Shown in Fig. 2 and 9, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; 51 normal operations of air conditioner water circulating pump, hot water circulating pump 50 is not worked; The first water flow control valve 121, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The second water flow control valve 122, the 3rd water flow control valve 123 standard-sized sheets; Master controller 200 control bypass regulator valves 130 are in full-gear.

In the course of the work, the workflow of four control air-conditioning systems shown in Figure 2 is: after hot water is discharged from hot-water heater 8 water side outlet ends, through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, bypass regulator valve 130, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, the 3rd water flow control valve 123, get back to hot-water heater 8 water side entrance ends successively.

The all changes scheme of embodiment 1 described air conditioner water circulating pump 51, hot-water circulating pump 50 installation site in four control air-conditioning systems shown in Figure 1 also is applicable to the described four control air-conditioning systems of the present embodiment Fig. 2.

Embodiment 3

As shown in Figure 3, it from the difference of embodiment 1 four control air-conditioning systems shown in Figure 1 only is: air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are different.

In the present embodiment four control air-conditioning systems shown in Figure 3, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are: air conditioner water circulating pump 51 ports of export link to each other with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with the 3rd water flow control valve 123 with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with the 3rd water flow control valve 123 with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with hot-water heater 8 water side entrance ends.

Four control air-conditioning systems shown in Figure 3 and operation of air conditioning systems shown in Figure 9 are combined, and also can realize all functions of embodiment 1 scheme shown in Figure 1, and when realizing identical function, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.System shown in Figure 3 is realizing that summer is identical to cooling or workflow and the workflow of embodiment 1 system shown in Figure 1 under above-mentioned two functions under dehumidification function, summer and the transition season constant temperature and humidity function of air; And can adopt identical control method.System shown in Figure 3 is realizing that winter is as described below to the heating function of air, workflow under the winter frost removing function.

(1) winter is to the heating function of air

Shown in Fig. 3 and 9, under this function, heat source side heat exchanger 4 draw heat from environment, utilize the heat of drawing, produce hot water in hot-water heater 8 and user's side heat exchanger 3, the hot water of producing heats processed air in air conditioner unit 110 by cooler 100 and reheater 30 again.

During work, air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 normal operations; First throttle mechanism 5 closes, 7 normal operations of the second throttle mechanism; The first water flow control valve 121, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126 are closed; The second water flow control valve 122, the 3rd water flow control valve 123 standard-sized sheets; 127 normal operations of the 7th water flow control valve, common the 7th water flow control valve 127 is two-way electric control valve (or being called straight-through electric control valve); During work, the 7th water flow control valve 127 is used for regulating the hot water flow by cooler 100 and reheater 30.

Under this function, the workflow of four control air-conditioning systems shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, subsystem tube connector 104, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, the second water flow control valve 122, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 7th water flow control valve 127, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, the 3rd water flow control valve 123, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export are got back to hot-water heater 8 water side entrance ends.

In the course of work under this function, when hot water circulating pump 50 is variable frequency pump, when compressing mechanism 1 was frequency-changeable compressor, the control method of four control air-conditioning systems shown in Figure 3 was as follows:

4) in the course of work, the first pressure sensor 41, the 4th pressure sensor 44 respectively detected chilled water water main 101 and the confession on hot water backwater's main 108, pressure of return water signal all are delivered to master controller 200, master controller 200 utilize these two pressure signals calculate between chilled water water main 101 and the hot water backwater's main 108 for backwater pressure reduction, supply backwater pressure reduction as control signal with this, by the operating frequency of master controller 200 control hot water circulating pumps 50, that is: hot water circulating pump 50 is controlled hot water flow in the mode of frequency conversion.During work, when master controller 200 detected actual confession backwater pressure reduction are higher than for backwater pressure reduction desired value, then reduce the operating frequency of hot water circulating pump 50 by master controller 200; When master controller 200 detected actual confession backwater pressure reduction are lower than for backwater pressure reduction desired value, then increase the operating frequency of hot water circulating pumps 50 by master controller 200.

Under this function, above-described control method is applicable to all schemes of the present embodiment, and embodiment 4,5 described all schemes.

(2) winter frost removing function

Under this function, stop the Air Flow of air conditioner unit 110.Shown in Fig. 3 and 9, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; Air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 normal operations; The first water flow control valve 121, the second water flow control valve 122, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The 3rd water flow control valve 123 standard-sized sheets; Master controller 200 control bypass regulator valves 130 are in full-gear.

During work, circulating hot water by hot water circulating pump 50 drivings, the refrigerant vapour heating that compressed mechanism 1 discharges in hot-water heater 8, but in user's side heat exchanger 3, heated hot water is emitted again heat, the heat that compressing mechanism 1 wasted work produces in this process and the heat of drawing from four control air-conditioning systems are used for defrost by cold-producing medium in heat source side heat exchanger 4.

In the course of the work, the workflow of four control air-conditioning systems shown in Figure 3 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, subsystem tube connector 104, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, bypass regulator valve 130, chilled water backwater main 102, the 3rd water flow control valve 123, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export are got back to hot-water heater 8 water side entrance ends.

Under this function, the control method when above-described workflow and work is applicable to all schemes of the present embodiment.

In Practical Project, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in four control air-conditioning systems shown in Figure 3 are except the present embodiment the above-described scheme, also has following change programme, these change programmes also can realize the above-described all functions of the present embodiment scheme shown in Figure 3, and when realizing each function, its closed circuit is identical with control method, its difference only is in the cyclic process, and air conditioner water circulating pump 51, hot-water circulating pump 50 residing position in circulation is different.

The change programme of air conditioner water circulating pump 51, hot-water circulating pump 50 installation site in four control air-conditioning systems shown in Figure 3 is as described below:

1) air conditioner water circulating pump 51 ports of export link to each other with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with the 3rd water flow control valve 123 with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with hot-water heater 8 water side outlet ends, and hot-water circulating pump 50 ports of export link to each other with the 105 pipeline 105.

2) air conditioner water circulating pump 51 ports of export link to each other with the 104 pipeline 104 with the 103 pipeline 103, and air conditioner water circulating pump 51 arrival ends link to each other with the 4th water flow control valve 124 ports of export; Hot-water circulating pump 50 arrival ends link to each other with the 3rd water flow control valve 123 with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with hot-water heater 8 water side entrance ends.

3) air conditioner water circulating pump 51 ports of export link to each other with the 104 pipeline 104 with the 103 pipeline 103, and air conditioner water circulating pump 51 arrival ends link to each other with the 4th water flow control valve 124 ports of export; Hot-water circulating pump 50 arrival ends link to each other with hot-water heater 8 water side outlet ends, and hot-water circulating pump 50 ports of export link to each other with the 105 pipeline 105.

Embodiment 4

As shown in Figure 4, it from the difference of embodiment 2 four control air-conditioning systems shown in Figure 2 only is: air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are different.

In the present embodiment four control air-conditioning systems shown in Figure 4, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are: air conditioner water circulating pump 51 ports of export link to each other with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with the 3rd water flow control valve 123 with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with the 3rd water flow control valve 123 with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with hot-water heater 8 water side entrance ends.

Four control air-conditioning systems shown in Figure 4 and operation of air conditioning systems shown in Figure 9 are combined, and also can realize all functions of embodiment 1 scheme shown in Figure 1, and when realizing identical function, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.System shown in Figure 4 is realizing that summer is identical to cooling or workflow and the workflow of embodiment 1 system shown in Figure 1 under above-mentioned two functions under dehumidification function, summer and the transition season constant temperature and humidity function of air; And can adopt identical control method.System shown in Figure 4 is realizing that winter is as described below to the heating function of air, workflow under the winter frost removing function.

(1) winter is to the heating function of air

Shown in Fig. 4 and 9, under this function, heat source side heat exchanger 4 draw heat from environment, utilize the heat of drawing, produce hot water in hot-water heater 8 and user's side heat exchanger 3, the hot water of producing heats processed air in air conditioner unit 110 by cooler 100 and reheater 30 again.

Under this function, the workflow of four control air-conditioning systems shown in Figure 4 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, subsystem tube connector 104, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 7th water flow control valve 127, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, the 3rd water flow control valve 123, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export are got back to hot-water heater 8 water side entrance ends.

When hot water circulating pump 50 is variable frequency pump, when compressing mechanism 1 is frequency-changeable compressor, in the course of work under this function, the control method the when control method of four control air-conditioning systems shown in Figure 4 and the embodiment of the invention 3 four control air-conditioning systems shown in Figure 3 are worked under this function is identical.

(2) winter frost removing function

Under this function, stop the Air Flow of air conditioner unit 110.Shown in Fig. 4 and 9, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; Air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 normal operations; The first water flow control valve 121, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The second water flow control valve 122, the 3rd water flow control valve 123 standard-sized sheets; Master controller 200 control bypass regulator valves 130 are in full-gear.

In the course of the work, the workflow of four control air-conditioning systems shown in Figure 4 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, bypass regulator valve 130, chilled water backwater main 102, the 3rd water flow control valve 123, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export are got back to hot-water heater 8 water side entrance ends.

In Practical Project, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in four control air-conditioning systems shown in Figure 4 are except the present embodiment the above-described scheme, also has following change programme, these change programmes also can realize the above-described all functions of the present embodiment scheme shown in Figure 4, and when realizing each function, its closed circuit is identical with control method, its difference only is in the cyclic process, and air conditioner water circulating pump 51, hot-water circulating pump 50 residing position in circulation is different.

The change programme of air conditioner water circulating pump 51, hot-water circulating pump 50 installation site in four control air-conditioning systems shown in Figure 4 is as described below:

2) air conditioner water circulating pump 51 ports of export link to each other with the second water flow control valve 122 with the 103 pipeline 103, and air conditioner water circulating pump 51 arrival ends link to each other with the 4th water flow control valve 124 ports of export; Hot-water circulating pump 50 arrival ends link to each other with the 3rd water flow control valve 123 with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with hot-water heater 8 water side entrance ends.

3) air conditioner water circulating pump 51 ports of export link to each other with the second water flow control valve 122 with the 103 pipeline 103, and air conditioner water circulating pump 51 arrival ends link to each other with the 4th water flow control valve 124 ports of export; Hot-water circulating pump 50 arrival ends link to each other with hot-water heater 8 water side outlet ends, and hot-water circulating pump 50 ports of export link to each other with the 105 pipeline 105.

Embodiment 5

As shown in Figure 5, the difference of it and embodiment 4 four control air-conditioning systems shown in Figure 4 only is: the 3rd water flow control valve 123 and the installation site of subsystem tube connector 104 in system exchange.

In the present embodiment four control air-conditioning systems shown in Figure 5, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are: air conditioner water circulating pump 51 ports of export link to each other with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with subsystem tube connector 104 with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with subsystem tube connector 104 with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with hot-water heater 8 water side entrance ends.

Four control air-conditioning systems shown in Figure 5 and operation of air conditioning systems shown in Figure 9 are combined, and also can realize all functions of embodiment 1 scheme shown in Figure 1, and when realizing identical function, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.System shown in Figure 5 is realizing that summer is identical to cooling or workflow and the workflow of embodiment 1 system shown in Figure 1 under above-mentioned two functions under dehumidification function, summer and the transition season constant temperature and humidity function of air; And can adopt identical control method.System shown in Figure 5 is realizing that winter is as described below to the heating function of air, workflow under the winter frost removing function.

(1) winter is to the heating function of air

Shown in Fig. 5 and 9, under this function, heat source side heat exchanger 4 draw heat from environment, utilize the heat of drawing, produce hot water in hot-water heater 8 and user's side heat exchanger 3, the hot water of producing heats processed air in air conditioner unit 110 by cooler 100 and reheater 30 again.

Under this function, the workflow of four control air-conditioning systems shown in Figure 5 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, the 3rd water flow control valve 123, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 7th water flow control valve 127, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, subsystem tube connector 104, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export are got back to hot-water heater 8 water side entrance ends.

When hot water circulating pump 50 is variable frequency pump, when compressing mechanism 1 is frequency-changeable compressor, in the course of work under this function, the control method the when control method of four control air-conditioning systems shown in Figure 5 and the embodiment of the invention 3 four control air-conditioning systems shown in Figure 3 are worked under this function is identical.

(2) winter frost removing function

Under this function, stop the Air Flow of air conditioner unit 110.Shown in Fig. 5 and 9, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; Air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 normal operations; The first water flow control valve 121, the 3rd water flow control valve 123, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The second water flow control valve 122 standard-sized sheets; Master controller 200 control bypass regulator valves 130 are in full-gear.

In the course of the work, the workflow of four control air-conditioning systems shown in Figure 5 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, bypass regulator valve 130, chilled water backwater main 102, subsystem tube connector 104, hot water backwater's main 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export are got back to hot-water heater 8 water side entrance ends.

In Practical Project, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in four control air-conditioning systems shown in Figure 5 are except the present embodiment the above-described scheme, also has following change programme, these change programmes also can realize the above-described all functions of the present embodiment scheme shown in Figure 5, and when realizing each function, its closed circuit is identical with control method, its difference only is in the cyclic process, and air conditioner water circulating pump 51, hot-water circulating pump 50 residing position in circulation is different.

The change programme of air conditioner water circulating pump 51, hot-water circulating pump 50 installation site in four control air-conditioning systems shown in Figure 5 is as described below:

1) air conditioner water circulating pump 51 ports of export link to each other with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with subsystem tube connector 104 with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with hot-water heater 8 water side outlet ends, and hot-water circulating pump 50 ports of export link to each other with the 105 pipeline 105.

2) air conditioner water circulating pump 51 ports of export link to each other with the second water flow control valve 122 with the 103 pipeline 103, and air conditioner water circulating pump 51 arrival ends link to each other with the 4th water flow control valve 124 ports of export; Hot-water circulating pump 50 arrival ends link to each other with subsystem tube connector 104 with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with hot-water heater 8 water side entrance ends.

Embodiment 6

As shown in figure 10, it from the difference of embodiment 5 four control air-conditioning systems shown in Figure 5 only is: air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are different.

In the present embodiment four control air-conditioning systems shown in Figure 10, air conditioner water circulating pump 51, the installation site of hot-water circulating pump 50 in system are: air conditioner water circulating pump 51 ports of export link to each other with subsystem tube connector 104 with the 4th water flow control valve 124 arrival ends, and air conditioner water circulating pump 51 arrival ends link to each other with chilled water backwater main 102; Hot-water circulating pump 50 arrival ends link to each other with hot water backwater's main 108, and hot-water circulating pump 50 ports of export link to each other with subsystem tube connector 104 with hot-water heater 8 water side entrance ends.

Four control air-conditioning systems shown in Figure 10 and operation of air conditioning systems shown in Figure 9 are combined, and also can realize all functions of embodiment 1 scheme shown in Figure 1, and when realizing identical function, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.System shown in Figure 10 is realizing that summer is identical to cooling or workflow and the workflow of embodiment 1 system shown in Figure 1 under above-mentioned two functions under dehumidification function, summer and the transition season constant temperature and humidity function of air; And can adopt identical control method.System shown in Figure 10 is realizing that winter is as described below to the heating function of air, workflow under the winter frost removing function.

(1) winter is to the heating function of air

Shown in Figure 10 and 9, under this function, heat source side heat exchanger 4 draw heat from environment, utilize the heat of drawing, produce hot water in hot-water heater 8 and user's side heat exchanger 3, the hot water of producing heats processed air in air conditioner unit 110 by cooler 100 and reheater 30 again.

Under this function, the workflow of four control air-conditioning systems shown in Figure 10 is: after hot water is discharged from hot-water heater 8 water side outlet ends, successively through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, the 3rd water flow control valve 123, hot water water main 109, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 7th water flow control valve 127, cooler 100 arrival ends, cooler 100 ports of export, the 113 pipeline 113, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, subsystem tube connector 104 is got back to hot-water heater 8 water side entrance ends.

When air conditioner water circulating pump 51 is variable frequency pump, when compressing mechanism 1 is frequency-changeable compressor, in the course of work under this function, the control method the when control method of four control air-conditioning systems shown in Figure 10 and the embodiment of the invention 1 four control air-conditioning systems shown in Figure 1 are worked under this function is identical.

(2) winter frost removing function

Under this function, stop the Air Flow of air conditioner unit 110.Shown in Figure 10 and 9, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 9 is identical with embodiment 1.

During work, 5 normal operations of first throttle mechanism, the second throttle mechanism 7 standard-sized sheets; 51 normal operations of air conditioner water circulating pump, hot water circulating pump 50 is not worked; The first water flow control valve 121, the 3rd water flow control valve 123, the 4th water flow control valve 124, the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 are closed; The second water flow control valve 122 standard-sized sheets; Master controller 200 control bypass regulator valves 130 are in full-gear.

In the course of the work, the workflow of four control air-conditioning systems shown in Figure 10 is: after hot water is discharged from hot-water heater 8 water side outlet ends, through the 105 pipeline 105, the second water flow control valve 122, the 103 pipeline 103, user's side heat exchanger 3 water side entrance ends, user's side heat exchanger 3 water side outlet ends, chilled water water main 101, bypass regulator valve 130, chilled water backwater main 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, subsystem tube connector 104, get back to hot-water heater 8 water side entrance ends successively.

When practical application, all changes scheme of embodiment 1 described air conditioner water circulating pump 51, hot-water circulating pump 50 installation site in four control air-conditioning systems shown in Figure 1 also is applicable to the described four control air-conditioning systems of the present embodiment Figure 10.

Embodiment 7

As shown in figure 11, the difference of it and embodiment 3 four control air-conditioning systems shown in Figure 3 only is: in four control air-conditioning systems shown in Figure 11, substituted the 4th water flow control valve 124 in the embodiment 3 four control air-conditioning systems shown in Figure 3 with a non-return valve 109.After substituting, the connected mode of non-return valve 109 in system is: the port of export of non-return valve 109 is the port of export of the 4th water flow control valve 124 that replaces; The arrival end of non-return valve 109 is the arrival end of the 4th water flow control valve 124 that replaces.

As shown in figure 11, the connected mode of non-return valve 109 in four control air-conditioning systems shown in Figure 11 is: the port of export of non-return valve 109 links to each other with the 103 pipeline 103, and the arrival end of non-return valve 109 links to each other with chilled water backwater main 102 by air conditioner water circulating pump 51 ports of export, air conditioner water circulating pump 51 arrival ends successively.

The present embodiment four control air-conditioning systems and operation of air conditioning systems shown in Figure 9 shown in Figure 11 combined, also can realize all functions of embodiment 3 four control air-conditioning systems shown in Figure 3, when realizing identical function, its workflow and control method are also identical with workflow and the control method of embodiment 3 four control air-conditioning systems shown in Figure 3.

The above-described scheme that substitutes the 4th water flow control valves 124 with non-return valve 109 of the present embodiment also is applicable to embodiment 3 described all changes schemes, and embodiment 4,5 described all schemes; And substitute the 4th water flow control valve 124 with non-return valve 109, can realize all functions of former scheme, when realizing identical function, its workflow and control method are also identical with workflow and the control method of former scheme.

As shown in figure 11, be provided with an auxiliary thermal source 20 at hot water water main 109, when system in summer and transition season constant temperature and humidity function, or winter is when working under the heating function to air, when if operation of air conditioning systems shown in Figure 9 can not satisfy user's thermic load demand, utilize auxiliary thermal source 20 to replenish not enough heat, auxiliary thermal source 20 can be heat pump, fuel oil or gas fired-boiler, or even electric heater etc.The above scheme is applicable to described all schemes of all embodiment of the present invention.

In the scheme of above-mentioned all embodiment, user's side heat exchanger 3 is as cold-producing medium-water-to-water heat exchanger, usually adopts in plate type heat exchanger, volumetric heat exchanger, shell and tube exchanger or the double pipe heat exchanger any one.

In the scheme of above-mentioned all embodiment, heat source side heat exchanger 4 is except can being cold-producing medium-air heat exchanger, also can be cold-producing medium-soil heat exchanger, cold-producing medium-water-to-water heat exchanger, also can be evaporating heat exchanger, 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.

In the scheme of above-mentioned all embodiment, hot-water heater 8 adopts any one in volumetric heat exchanger, plate type heat exchanger, shell and tube exchanger or the double pipe heat exchanger during as cold-producing medium-water-to-water heat exchanger usually, or the heat exchanger of other kind as required.

Heat source side heat exchanger 4 adopts finned heat exchanger during as cold-producing medium-air heat exchanger usually, and the fin of described finned heat exchanger is generally the aluminum or aluminum alloy material, also uses copper material in some special occasions.That the shape of fin usually adopts is plate, in ripple type or the slitted fin type any one.

In the scheme of above-mentioned all embodiment, in described the first water flow control valve 121, the second water flow control valve 122, the 3rd water flow control valve 123, the 4th water flow control valve 124 any one even above-mentioned four water flow control valves, can adopt magnetic valve or have in the flow control device of turn-off function any one to substitute, for example: the two-way electric control valve.

In the 5th water flow control valve 125, the 6th water flow control valve 126, the 7th water flow control valve 127 any one even above-mentioned three water flow control valves, can adopt in the flow control device with turn-off function any one to substitute, for example: the two-way electric control valve.

Claims

1. a control air-conditioning system comprises user's side heat exchanger (3) of operation of air conditioning systems, hot-water heater (8), the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 4th water flow control valve (124), the 5th water flow control valve (125), subsystem tube connector (104), at least one cooler (100) and at least one reheater (30) of operation of air conditioning systems;

2. a control air-conditioning system comprises user's side heat exchanger (3) of operation of air conditioning systems, hot-water heater (8), the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 4th water flow control valve (124), the 5th water flow control valve (125), subsystem tube connector (104), at least one cooler (100) and at least one reheater (30) of operation of air conditioning systems;

3. a control air-conditioning system comprises user's side heat exchanger (3) of operation of air conditioning systems, hot-water heater (8), the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 5th water flow control valve (125), the 4th water flow control valve (124), subsystem tube connector (104), at least one cooler (100) and at least one reheater (30) of operation of air conditioning systems;

4. described four control air-conditioning systems of arbitrary claim in 3 according to claim 1, it is characterized in that bypass control valve (a 130) arrival end links to each other with described chilled water water main (101), described bypass regulator valve (130) port of export links to each other with described chilled water backwater main (102).

5. described four control air-conditioning systems of arbitrary claim in 3 according to claim 1, it is characterized in that described cooler (100), reheater (30) are arranged in the same air conditioner unit (110), and along the flow direction of air, described reheater (30) is in the downwind side of described cooler (100).

6. described four control air-conditioning systems of arbitrary claim in 3 according to claim 1 is characterized in that described the 5th water flow control valve (125) is the two-way electric control valve.

7. described four control air-conditioning systems of arbitrary claim in 3 according to claim 1 is characterized in that described the 6th water flow control valve (126) is the two-way electric control valve.

8. described four control air-conditioning systems of arbitrary claim in 3 according to claim 1 is characterized in that described the 7th water flow control valve (127) is the two-way electric control valve.

9. described four control air-conditioning systems of arbitrary claim in 3 according to claim 1 is characterized in that in described the first water flow control valve (121), the second water flow control valve (122), the 3rd water flow control valve (123), the 4th water flow control valve (124) any one is magnetic valve.

10. four control air-conditioning systems according to claim 4 is characterized in that described bypass regulator valve (130) is the two-way electric control valve.