CN102620358A

CN102620358A - Air treatment equipment water system

Info

Publication number: CN102620358A
Application number: CN2012100939044A
Authority: CN
Inventors: 刘雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2012-08-01
Also published as: CN102901165B; CN102901165A

Abstract

The invention discloses an air treatment equipment water system. The system comprises an air-conditioning water sub-system and a hot water sub-system, wherein the air-conditioning water sub-system comprises a user side heat exchanger of air-conditioning refrigeration equipment, an air-conditioning water circulating pump, a cooler of an air treatment unit and a check valve; the water side inlet end of the user side heat exchanger is connected with the water side outlet end of the user side heat exchanger sequentially through a 103rd pipeline, a check valve outlet end, a check valve inlet end, the outlet end of the air-conditioning water circulating pump, the inlet end of the air-conditioning water circulating pump, a 102nd pipeline, the outlet end of the air treatment unit cooler, the inlet end of the air treatment unit cooler and a 101st pipeline; and the hot water sub-system comprises a hot water heater of the air-conditioning refrigeration equipment, a reheater of the air treatment unit and a hot water circulating pump. The requirement for cold and heat quantities of the air treatment equipment water system can be simultaneously met by using one air-conditioning refrigeration equipment, and the air treatment equipment water system has a simple structure, reliable work and low cost.

Description

The airhandling equipment water system

Technical field

The present invention relates to a kind of airhandling equipment water system, belong to air-conditioning technical field.

Background technology

Airhandling equipment in the central air conditioner system generally comprises cooler and reheater at least; The air that is processed is cooled and dehumidifies through subcooler earlier usually; And then the entering reheater, after air is heated to wind pushing temperature therein, be admitted to air-conditioned room again.This shows; The airhandling equipment of central air conditioner system is in the process of handling air; Exist the demand of cold and heat simultaneously; At present the cold of conventional central air conditioner system airhandling equipment is provided by the chilled water that refrigeration plant is produced generally that (for example: handpiece Water Chilling Units), its heat is generally provided by the hot water that fuel oil, gas fired-boiler are produced.There are following defective in the conventional above-mentioned cold of airhandling equipment and the supplying mode of heat:

1) refrigeration plant is in the process of producing chilled water, and its condensation heat is not utilized effectively, but directly is discharged in the environment; 2) adopt fuel oil, gas fired-boiler to provide air hot more required tow taste heat, the high-quality energy is not utilized effectively: 3) initial cost of equipment is bigger.

Therefore; In order to reduce the energy consumption of central air conditioner system in air handling process and the investment of equipment that reduces central air conditioner system effectively; Be necessary design and develop to have cooling, heat supply function simultaneously; And operation of air conditioning systems simple in structure, and by its institute's driven air treatment facility water system.

Summary of the invention

The purpose of this invention is to provide a kind of by having the operation of air conditioning systems driven air treatment facility water system of cooling, heat supply function simultaneously.

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

A kind of airhandling equipment water system comprises air conditioner water subsystem and hot water subsystem;

Said air conditioner water subsystem comprises user side heat exchanger (3), air conditioner water circulating pump (51), cooler (100) and the non-return valve (109) of operation of air conditioning systems, and said user side heat exchanger (3) water side entrance end links to each other with said user side heat exchanger (3) water side outlet end through the 103 pipeline (103), non-return valve (109) port of export, non-return valve (109) arrival end, air conditioner water circulating pump (51) port of export, air conditioner water circulating pump (51) arrival end, the 102 pipeline (102), cooler (100) port of export, cooler (100) arrival end, the 101 pipeline (101) successively;

Said hot water subsystem comprises hot-water heater (8), reheater (30), the hot water circulating pump (50) of operation of air conditioning systems, and said hot-water heater (8) water side entrance end links to each other with said hot-water heater (8) water side outlet end through the 107 pipeline (107), hot water circulating pump (50) port of export, hot water circulating pump (50) arrival end, the 108 pipeline (108), reheater (30) port of export, reheater (30) arrival end successively;

It is characterized in that: this airhandling equipment water system also comprises first water flow control valve (121), second water flow control valve (122) and subsystem tube connector (104);

Said first water flow control valve (121) one ends link to each other with said hot-water heater (8) water side outlet end through the 105 pipeline (105), and said first water flow control valve (121) other end links to each other with said reheater (30) arrival end through the 106 pipeline (106);

Said second water flow control valve (122) one ends link to each other with the 102 pipeline (102) of said air conditioner water circulating pump (51) arrival end, and said second water flow control valve (122) other end links to each other with the 106 pipeline (106) between said reheater (30) arrival end and first water flow control valve (121);

Said subsystem tube connector (104) one ends link to each other with the 103 pipeline (103) between said user side heat exchanger (3) the water side entrance end and non-return valve (109) port of export, and said subsystem tube connector (104) other end links to each other with the 105 pipeline (105) between said hot-water heater (8) water side outlet end and first water flow control valve (121).

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

1. can satisfy the cold and hot amount demand of airhandling equipment simultaneously with an operation of air conditioning systems;

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

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

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

Description of drawings

Fig. 1 is the operation of air conditioning systems structural representation that the present invention and airhandling equipment water system match;

Fig. 2 is the structural representation of the embodiment of the invention 1 airhandling equipment water system;

Fig. 3 is the structural representation of the embodiment of the invention 2 airhandling equipment water systems;

Fig. 4 is the structural representation of the embodiment of the invention 2 airhandling equipment water systems;

Fig. 5 is the structural representation of the embodiment of the invention 3 airhandling equipment water systems;

Fig. 6 is the structural representation of the embodiment of the invention 3 airhandling equipment water systems;

Fig. 7 is the air conditioner unit structural representation in the airhandling equipment water system of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing content of the present invention is done further explain.

Shown in Figure 1 is a kind of operation of air conditioning systems of cooling and heat supply function simultaneously that has, and being used to the airhandling equipment water system of Fig. 2 to 6 of the present invention shown in respectively provides the processing air required cold and hot amount.

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

The connected mode of each part of operation of air conditioning systems shown in Figure 1 is described below:

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

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

Another switching-over node 74 of cross valve 2 links to each other through any connected node in two connected nodes of the 61 pipeline 61 and user side heat exchanger 3 refrigerant sides, and another connected node of user 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 7 is in the airhandling equipment water system, utilize chilled water that operation of air conditioning systems shown in Figure 1 produces and hot water, air is handled; It is applicable to all the airhandling equipment water systems of the present invention shown in Fig. 2 to 6 difference.

As shown in Figure 7, air conditioner unit 110 comprises cooler 100, reheater 30 at least; 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, as shown in Figure 7 for the humidity and the dry-bulb temperature that are processed air are controlled, have additional two temperature-detecting devices, that is: first temperature-detecting device 51 and second temperature-detecting device 52; During work, first temperature-detecting device 51 is used to detect the wet-bulb temperature that is processed air, and second temperature detection dress stomach 52 is used to detect the dry-bulb temperature that is processed air.

There are following several kinds of schemes first temperature-detecting device 51 and second temperature-detecting device 52 position that is provided with in air conditioner unit 110:

1) along the flow direction of air, first temperature-detecting device 51, second temperature-detecting device 52 all are arranged at the air side of reheater 30, and be as shown in Figure 7;

2) along the flow direction of air, first temperature-detecting device 51 is arranged at the inlet side of cooler 100, and second temperature-detecting device 52 is arranged at the air side of reheater 30;

3) along the flow direction of air, first temperature-detecting device 51 is arranged at the air side of cooler 100, and second temperature-detecting device 52 is arranged at the air side of reheater 30;

4) along the flow direction of air, first temperature-detecting device 51, second temperature-detecting device 52 all are arranged at the inlet side of cooler 100;

5) along the flow direction of air, first temperature-detecting device 51 is arranged at the air side of cooler 100, and second temperature-detecting device 52 is arranged at the inlet side of cooler 100;

6) along the flow direction of air, first temperature-detecting device 51 is arranged at the air side of reheater 30, and second temperature-detecting device 52 is arranged at the inlet side of cooler 100.

Embodiment 1

Airhandling equipment water system shown in Figure 2 comprises following part: the user side heat exchanger 3 of operation of air conditioning systems, the hot-water heater 8 of operation of air conditioning systems, reheater 30, hot water circulating pump 50, air conditioner water circulating pump 51, cooler 100, non-return valve 109, first water flow control valve 121, second water flow control valve 122.

The airhandling equipment water system that the present invention is shown in Figure 2; And the operation of air conditioning systems shown in Figure 1 that cold and hot amount is provided for it in the course of the work; In the whole year operation process; Can realize following function, when realizing each function, the workflow of the associated airhandling equipment water system shown in Figure 2 of operation of air conditioning systems shown in Figure 1 and present embodiment is described below respectively.

(1) produces chilled water summer separately

Under this function, 110 pairs of air conditioner units are processed that air cools off or cooling and dehumidifying is handled, and are cooled or the air of cooling and dehumidifying after handling do not require heat again.

As illustrated in fig. 1 and 2, under this function, user side heat exchanger 3 is used to produce chilled water, and the chilled water of being produced cools off through 100 pairs of air of the cooler in the air conditioner unit 110 or cooling and dehumidifying is handled; The condensation heat that operation of air conditioning systems is produced in producing the chilled water process does not reclaim, but all is discharged in the surrounding environment through heat source side heat exchanger 4.

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot water circulating pump 50 is not worked, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121, second water flow control valve 122 are closed.

Under this function; The workflow of operation of air conditioning systems shown in Figure 1 is: after cold-producing medium is discharged from compressing mechanism 1 port of export; Successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 switching-over nodes the 72, the 64 pipeline 64, first check valve, 21 arrival ends, first check valve, 21 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, first throttle mechanism the 5, the 62 pipeline 62; Get into the refrigerant side of user side heat exchanger 3, carry out heat exchange through user side heat exchanger 3 and water; Cold-producing medium absorbs heat, come out from the refrigerant side of user side heat exchanger 3 after; Again successively through the 61 pipeline 61, cross valve 2 switching-over nodes 74, cross valve 2 low pressure nodes the 73, the 63 pipeline 63; Get back to compressing mechanism 1 arrival end, so far accomplish once circulation.

Under this function; Hot water subsystem in the airhandling equipment water system shown in Figure 2 is not worked; The workflow of the air conditioner water subsystem in the airhandling equipment water system shown in Figure 2 is described below: after chilled water is discharged from user side heat exchanger 3 water side outlet ends; Through the 101 pipeline 101, cooler 100 arrival ends, cooler 100 ports of export, the 102 pipeline 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, non-return valve 109 arrival ends, non-return valve 109 ports of export, the 103 pipeline 103, get back to user side heat exchanger 3 water side entrance ends successively.

Control method under this function is following.

First scheme:

The 51 constant flow work of air conditioner water circulating pump; Compressing mechanism 1 is a constant speed compressor; The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal, the start-stop of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the dry-bulb temperature that is processed air with the mode of start-stop.The actual dry-bulb temperature that is processed air is changing in an interval of dry-bulb temperature desired value; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the minimum of a value of dry-bulb temperature desired value constant interval; Then compressing mechanism 1 is out of service; Simultaneously, air conditioner water circulating pump 51 also quits work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 was higher than the maximum of dry-bulb temperature desired value constant interval, then compressing mechanism 1 brought into operation again, and simultaneously, air conditioner water circulating pump 51 is also started working.

Alternative plan:

The 51 constant flow work of air conditioner water circulating pump; Compressing mechanism 1 is a constant speed compressor; The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal, the start-stop of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the wet-bulb temperature that is processed air with the mode of start-stop.The actual wet-bulb temperature that is processed air is changing in an interval of wet-bulb temperature desired value; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the minimum of a value of wet-bulb temperature desired value constant interval; Then compressing mechanism 1 is out of service; Simultaneously, air conditioner water circulating pump 51 also quits work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 was higher than the maximum of wet-bulb temperature desired value constant interval, then compressing mechanism 1 brought into operation again, and simultaneously, air conditioner water circulating pump 51 is also started working.

Third party's case:

Air conditioner water circulating pump 51 constant flow work always; Compressing mechanism 1 is a frequency-changeable compressor; The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal, the operating frequency of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the dry-bulb temperature that is processed air with the mode of frequency conversion.The actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 then reduces the operating frequency of compressing mechanism 1 during less than the dry-bulb temperature desired value; The actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 then increases the operating frequency of compressing mechanism 1 during greater than the dry-bulb temperature desired value.

Cubic case:

Air conditioner water circulating pump 51 constant flow work always; Compressing mechanism 1 is a frequency-changeable compressor; The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal, the operating frequency of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the wet-bulb temperature that is processed air with the mode of frequency conversion.The actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 then reduces the operating frequency of compressing mechanism 1 during less than the wet-bulb temperature desired value; The actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 then increases the operating frequency of compressing mechanism 1 during greater than the wet-bulb temperature desired value.

(2) summer and transition season are produced chilled water and hot water simultaneously

Under this function, air cools off or cooling and dehumidifying is handled to being processed earlier for air conditioner unit 110, is cooled or the air of cooling and dehumidifying after handling, and is heated again, reach the requirement wind pushing temperature after, be admitted to air-conditioned room again.

As illustrated in fig. 1 and 2, under this function, user side heat exchanger 3 is used to produce chilled water, and the chilled water of being produced is processed through 100 pairs in the cooler in the air conditioner unit 110 that air cools off or cooling and dehumidifying is handled; Hot-water heater 8 utilizes operation of air conditioning systems shown in Figure 1 in the process of producing chilled water; The part condensation heat that is produced is produced hot water; Reheater 30 in the thermal water utilization air conditioner unit of producing 110 carries out heat again to the air that is cooled or cooling and dehumidifying is handled; Another part condensation heat enters environment through heat source side heat exchanger 4.

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot water circulating pump 50, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121 is opened, and second water flow control valve 122 is closed.

Under this function; The workflow of operation of air conditioning systems shown in Figure 1 is: after cold-producing medium is discharged from compressing mechanism 1 port of export; Successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 switching-over nodes the 72, the 64 pipeline 64, first check valve, 21 arrival ends, first check valve, 21 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, first throttle mechanism the 5, the 62 pipeline 62; Get into the refrigerant side of user side heat exchanger 3, carry out heat exchange through user side heat exchanger 3 and water; Cold-producing medium absorbs heat, come out from the refrigerant side of user side heat exchanger 3 after, successively through the 61 pipeline 61, cross valve 2 switching-over nodes 74, cross valve 2 low pressure nodes the 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.

Under this function, the workflow of airhandling equipment water system shown in Figure 2 is divided into hot water subsystem and air conditioner water subsystem two parts.

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, first water flow control valve the 121, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 108 pipeline 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.

The workflow of air conditioner water subsystem is: after chilled water is discharged from user side heat exchanger 3 water side outlet ends; Through the 101 pipeline 101, cooler 100 arrival ends, cooler 100 ports of export, the 102 pipeline 102, air conditioner water circulating pump 51 arrival ends, air conditioner water circulating pump 51 ports of export, non-return valve 109 arrival ends, non-return valve 109 ports of export, the 103 pipeline 103, get back to user side heat exchanger 3 water side entrance ends successively.

Control method under this function is following.

First scheme:

Hot water circulating pump 50, air conditioner water circulating pump 51 all are the constant speed water pump, constant flow work; First water flow control valve 121 adopts the moving control valve (or being called straight-through electric control valve) of two energisings; Compressing mechanism 1 is a constant speed compressor.

During work; The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the valve opening size of first water flow control valve 121, that is: regulate hot water flow, thereby change the heat again that air is heated through reheater 30; During work; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of first water flow control valve 121; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of first water flow control valve 121.

The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal, the start-stop of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the wet-bulb temperature that is processed air with the mode of start-stop; The actual wet-bulb temperature that is processed air is changing in an interval of wet-bulb temperature desired value; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the minimum of a value of wet-bulb temperature desired value constant interval; Then compressing mechanism 1 is out of service; Simultaneously, first water flow control valve 121 is closed, and hot water circulating pump 50, air conditioner water circulating pump 51 also quit work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the maximum of wet-bulb temperature desired value constant interval; Then compressing mechanism 1 brings into operation again; Simultaneously, first water flow control valve 121, hot water circulating pump 50, air conditioner water circulating pump 51 also begin operate as normal.When actual wet-bulb temperature circle that is processed air that first temperature-detecting device 51 is detected is between the maximum of wet-bulb temperature desired value constant interval and minimum of a value; Compressing mechanism 1, hot water circulating pump 50, air conditioner water circulating pump 51 be operate as normal all; First water flow control valve 121 is used to regulate heat again, and the air dry-bulb temperature that is processed is regulated.

Alternative plan:

Hot water circulating pump 50 is a variable frequency pump; The 51 constant flow work of air conditioner water circulating pump; First water flow control valve 121 adopts magnetic valve; Compressing mechanism 1 is a constant speed compressor.

During work; The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the rotating speed of hot water circulating pump 50 through frequency converter, thereby change hot water flow, the regulation and control of the heat of realizing air is heated again through reheater 30; During work; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the operating frequency of hot water circulating pump 50; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the operating frequency of hot water circulating pump 50.

The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal, the start-stop of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the wet-bulb temperature that is processed air with the mode of start-stop; The actual wet-bulb temperature that is processed air is changing in an interval of wet-bulb temperature desired value; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the minimum of a value of wet-bulb temperature desired value constant interval; Then compressing mechanism 1 is out of service; Simultaneously, first water flow control valve 121 is closed, and hot water circulating pump 50, air conditioner water circulating pump 51 also quit work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the maximum of wet-bulb temperature desired value constant interval; Then compressing mechanism 1 brings into operation again; Simultaneously, first water flow control valve 121, hot water circulating pump 50, air conditioner water circulating pump 51 also begin operate as normal.When actual wet-bulb temperature circle that is processed air that first temperature-detecting device 51 is detected is between the maximum of wet-bulb temperature desired value constant interval and minimum of a value; Compressing mechanism 1, hot water circulating pump 50, air conditioner water circulating pump 51 be operate as normal all; First water flow control valve 121 is opened; Hot water circulating pump 50 is used to regulate heat again, and the air dry-bulb temperature that is processed is regulated.

Third party's case:

Hot water circulating pump 50, air conditioner water circulating pump 51 all are the constant speed water pump, constant flow work; First water flow control valve 121 adopts the moving control valve (or being called straight-through electric control valve) of two energisings; Compressing mechanism 1 is a frequency-changeable compressor.

The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal, the operating frequency of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the wet-bulb temperature that is processed air with the mode of frequency conversion; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value, then reduce the operating frequency of compressing mechanism 1; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase the operating frequency of compressing mechanism 1.

In the course of work, all constant flow work always of hot water circulating pump 50, air conditioner water circulating pump 51, first water flow control valve 121 is used to regulate heat again, and the air dry-bulb temperature that is processed is regulated.

Cubic case:

Hot water circulating pump 50 is a variable frequency pump, the 51 constant flow work of air conditioner water circulating pump; First water flow control valve, 121 magnetic valves; Compressing mechanism 1 is a frequency-changeable compressor.

During work; The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the rotating speed of hot water circulating pump 50 through frequency converter, thereby change hot water flow, realize the regulation and control of heat again that air is heated through reheater 30; During work; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the operating frequency of hot water circulating pump 50; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the operating frequency of hot water circulating pump 50.

In the course of work, air conditioner water circulating pump 51 constant flow work always, first water flow control valve 121 is opened.

(3) produce hot water winter separately

Under this function, air conditioner unit 110 utilizes cooler 100 and reheater 30, carries out heat treated to being processed air, after air reaches the requirement wind pushing temperature, is admitted to air-conditioned room again.

As illustrated in fig. 1 and 2; Under this function, heat source side heat exchanger 4 draw heat from environment utilizes the heat of being drawn; In hot-water heater 8 and user side heat exchanger 3, produce hot water, the hot water of being produced is processed air through cooler 100 and 30 pairs in reheater again and heats.

During work, air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 operate as normal; First throttle mechanism 5 closes, second throttle mechanism, 7 operate as normal; First water flow control valve 121 is closed, and second water flow control valve 122 is opened.

Under this function; The workflow of operation of air conditioning systems shown in Figure 1 is: after cold-producing medium is discharged from compressing mechanism 1 port of export; Successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 switching-over nodes the 74, the 61 pipeline 61; Get into the refrigerant side of user side heat exchanger 3 and the water in the airhandling equipment water system and carry out heat exchange; After emitting heat, coming out from the refrigerant side of user side heat exchanger 3; Successively through the 62 pipeline 62, the 3rd check valve 23 arrival ends, the 3rd check valve 23 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, second check valve, 22 arrival ends, second check valve, 22 ports of export, the 64 pipeline 64, cross valve 2 switching-over nodes 72, cross valve 2 low pressure nodes the 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.

Under this function; The workflow of airhandling equipment water system shown in Figure 2 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline 105, subsystem tube connector the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, the 101 pipeline 101, cooler 100 arrival ends, cooler 100 ports of export, the 102 pipeline 102, second water flow control valve the 122, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 108 pipeline 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.

Control method under this function is following.

First scheme:

Hot water circulating pump 50 is the constant speed water pump, constant flow work; Compressing mechanism 1 is a constant speed compressor; Second water flow control valve 122 is a magnetic valve.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal, the start-stop of control compressing mechanism 1, that is: and compressing mechanism 1 is controlled the dry-bulb temperature that is processed air with the mode of start-stop.The actual dry-bulb temperature that is processed air is changing in an interval of dry-bulb temperature desired value; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the maximum of dry-bulb temperature desired value constant interval; Then compressing mechanism 1 is out of service; Simultaneously, hot water circulating pump 50 also quits work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the minimum of a value of dry-bulb temperature desired value constant interval; Then compressing mechanism 1 brings into operation again; Simultaneously, hot water circulating pump 50 is also started working, and second water flow control valve 122 is in opening all the time.

Alternative plan:

Hot water circulating pump 50 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor; Second water flow control valve 122 adopts the moving control valve (or being called straight-through electric control valve) of two energisings.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the valve opening size of second water flow control valve 122; That is: the hot water flow of reheater 30 and cooler 100 is passed through in adjusting, thereby changes the heat that adds hot-air; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of second water flow control valve 122; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of second water flow control valve 122.

With the hot water temperature of user side heat exchanger 3 water side outlet ends as control signal, the start-stop of control compressing mechanism 1, that is: compressing mechanism 1 is controlled with the mode of the start-stop hot water temperature to user side heat exchanger 3 water side outlet ends.The hot water temperature of user side heat exchanger 3 water side outlet ends is changing in an interval of hot water temperature's desired value of its port of export; When the actual hot water temperature of user side heat exchanger 3 water side outlet ends was higher than the maximum of hot water temperature's desired value constant interval of its port of export, then compressing mechanism 1 was out of service; When the actual hot water temperature of user side heat exchanger 3 water side outlet ends was lower than the minimum of a value of hot water temperature's desired value constant interval of its port of export, then compressing mechanism 1 brought into operation again.

In the course of work, hot water circulating pump 50 is worked always.

Third party's case:

Hot water circulating pump 50 constant flow work; Compressing mechanism 1 is a frequency-changeable compressor; Second water flow control valve 122 adopts magnetic valve.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; The running frequency of control compressing mechanism 1; That is: regulate the hot water temperature of user side heat exchanger 3 water side outlet ends, thereby change the heat that adds of

reheater

30 and 100 pairs of air of cooler; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the running frequency of compressing mechanism 1; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the running frequency of compressing mechanism 1.

Usually, hot water circulating pump 50 is the constant speed water pump, in the course of work, and constant flow work always; Second water flow control valve 122 is in opening.

Cubic case:

Hot water circulating pump 50 is the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor; Second water flow control valve 122 adopts the moving control valve (or being called straight-through electric control valve) of two energisings.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the valve opening size of second water flow control valve 122; That is: the hot water flow of reheater 30 and cooler 100 is passed through in adjusting, thereby changes the heat that adds hot-air; During work; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of second water flow control valve 122; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of second water flow control valve 122.

With the hot water temperature of user side heat exchanger 3 water side outlet ends as control signal, the operating frequency of control compressing mechanism 1, that is: compressing mechanism 1 is controlled with the mode of the frequency conversion hot water temperature to user side heat exchanger 3 water side outlet ends.When the actual hot water temperature of user side heat exchanger 3 water side outlet ends is higher than hot water temperature's desired value of its port of export, then reduce the operating frequency of compressing mechanism 1; When the actual hot water temperature of user side heat exchanger 3 water side outlet ends is lower than hot water temperature's desired value of its port of export, then increase the operating frequency of compressing mechanism 1.

In the course of work, hot water circulating pump 50 is normally operation always.

The 5th scheme:

Hot water circulating pump 50 is a variable frequency pump; Compressing mechanism 1 is a frequency-changeable compressor; Second water flow control valve 122 adopts magnetic valve.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the operating frequency of hot water circulating pump 50 as control signal, regulates the hot water flow through reheater 30 and cooler 100 that is:, thereby changes the heat that adds hot-air; During work; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the operating frequency of hot water circulating pump 50; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the operating frequency of hot water circulating pump 50.

In the course of work, second water flow control valve 122 is in opening always.

The 6th scheme:

Hot water circulating pump 50 is a variable frequency pump; Compressing mechanism 1 is a constant speed compressor; Second water flow control valve 122 adopts magnetic valve.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the operating frequency of hot water circulating pump 50 as control signal, regulates the hot water flow through reheater 30 and cooler 100 that is:, thereby changes the heat that adds hot-air; During work; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the operating frequency of hot water circulating pump 50; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the operating frequency of hot water circulating pump 50.

(4) winter frost removing

Under this function, the air that stops air conditioner unit 110 flows.As illustrated in fig. 1 and 2, under this function, during winter frost removing, the workflow of operation of air conditioning systems shown in Figure 1 is identical with the workflow that its summer and transition season are produced chilled water and hot water function simultaneously.That is: after cold-producing medium is discharged from compressing mechanism 1 port of export; Successively through the 60 pipeline 60, cross valve 2 high pressure nodes 71, cross valve 2 switching-over nodes the 72, the 64 pipeline 64, first check valve, 21 arrival ends, first check valve, 21 ports of export, the 69 pipeline 69, hot-water heater 8 refrigerant side arrival ends, the hot-water heater 8 refrigerant side ports of export, the 68 pipeline 68, second throttle mechanism 7, heat source side heat exchanger 4 arrival ends, heat source side heat exchanger 4 ports of export, the 70 pipeline the 70, the 66 pipeline 66, first throttle mechanism the 5, the 62 pipeline 62; Get into the refrigerant side of user side heat exchanger 3, carry out heat exchange through the water in user side heat exchanger 3 and the airhandling equipment water system; Cold-producing medium absorbs heat, come out from the refrigerant side of user side heat exchanger 3 after, successively through the 61 pipeline 61, cross valve 2 switching-over nodes 74, cross valve 2 low pressure nodes the 73, the 63 pipeline 63, get back to compressing mechanism 1 arrival end again.

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; First water flow control valve 121 is closed, and second water flow control valve 122 is opened; Air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 operate as normal.

During work; Circulating hot water by hot water circulating pump 50 drivings; In hot-water heater 8, be compressed the refrigerant vapour heating that mechanism 1 is discharged, but in user side heat exchanger 3, heated hot water is emitted heat again; Heat that compressing mechanism 1 wasted work is produced in this process and the heat of from the airhandling equipment water system, drawing are used for defrost through cold-producing medium in heat source side heat exchanger 4.

In the course of the work; The workflow of airhandling equipment water system shown in Figure 2 is: after hot water is discharged from hot-water heater 8 water side outlet ends; Through the 105 pipeline 105, subsystem tube connector the 104, the 103 pipeline 103, user side heat exchanger 3 water side entrance ends, user side heat exchanger 3 water side outlet ends, the 101 pipeline 101, cooler 100 arrival ends, cooler 100 ports of export, the 102 pipeline 102, second water flow control valve the 122, the 106 pipeline 106, reheater 30 arrival ends, reheater 30 ports of export, the 108 pipeline 108, hot water circulating pump 50 arrival ends, hot water circulating pump 50 ports of export, the 107 pipeline 107, get back to hot-water heater 8 water side entrance ends successively.

Embodiment 2

As shown in Figure 3, the difference of it and embodiment 1 airhandling equipment water system shown in Figure 2 is: present embodiment airhandling equipment water system shown in Figure 3 has increased by one the 5th water flow control valve 125 and a bypass regulator valve 130 in its air conditioner water subsystem.

The 5th water flow control valve 125 with the connectivity scenario of bypass regulator valve 130 in airhandling equipment water system shown in Figure 3 is: the 5th water flow control valve 125 1 ends link to each other with cooler 100 ports of export; The 5th water flow control valve 125 other ends link to each other with the 102 pipeline 102 of air conditioner water circulating pump 51 arrival ends; The entrance point of bypass regulator valve 130 links to each other with the 101 pipeline 101 between user side heat exchanger 3 water side outlet ends and cooler 100 arrival ends, and the port of export of bypass regulator valve 130 links to each other with the 102 pipeline 102 between the 5th water flow control valve 125 and air conditioner water circulating pump 51 arrival ends.

When practical application, the 5th water flow control valve 125 normally adopts the moving control valve of two energisings.In the running; The 5th water flow control valve 125 is according to the air ' s wet bulb temperature of the air conditioner unit 110 air side arrival ends or the port of export or the measured value of air dry-bulb temperature; According to predefined air themperature desired value; Regulate through cooler 100 chilled water flow, make the air ' s wet bulb temperature of the air conditioner unit 110 air side arrival ends or the port of export or air dry-bulb temperature equal its air themperature desired value.When practical application; Bypass regulator valve 130 is a Water flow adjusting valve of regulating its valve opening size according to the differential water pressures between its import and export end normally; Its effect is: in the course of the work, the differential water pressures of keeping between the import and export end of bypass regulator valve 130 is that desired value (also can be described as: preset value).

Because airhandling equipment water system shown in Figure 3 has increased by the 5th water flow control valve 125 and bypass regulator valve 130; Therefore; Producing separately chilled water function, summer and transition season in summer produces when working chilled water and hot water function under simultaneously; But air conditioner water circulating pump 51 constant speed operation, or directly adopt the constant speed water pump, the chilled-water flow through user side heat exchanger 3 water sides can be maintained definite value.The control method of airhandling equipment water system shown in Figure 3 when realizing each function is following.

(1) produces the chilled water function summer separately

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot water circulating pump 50 is not worked, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121, second water flow control valve 122 are closed; The 5th water flow control valve 125 and bypass regulator valve 130 be operate as normal all.

First scheme:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the valve opening size of the 5th water flow control valve 125 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

With the chilled water temperature of user side heat exchanger 3 water side outlet ends as control signal, the start-stop of control compressing mechanism 1, that is: compressing mechanism 1 is controlled the chilled water temperature of user side heat exchanger 3 water side outlet ends with the mode of start-stop.The chilled water temperature of user side heat exchanger 3 water side outlet ends is changing in an interval of the chilled water temperature desired value of its port of export; When the actual chilled water temperature of user side heat exchanger 3 water side outlet ends was lower than the minimum of a value of chilled water temperature desired value constant interval of its port of export, then compressing mechanism 1 was out of service; When the actual chilled water temperature of user side heat exchanger 3 water side outlet ends was higher than the maximum of chilled water temperature desired value constant interval of its port of export, then compressing mechanism 1 brought into operation again.

Alternative plan:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor.The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is regulated the valve opening size of the 5th water flow control valve 125 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

Third party's case:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the valve opening size of the 5th water flow control valve 125 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature detection dress stomach 52 is lower than the dry-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

With the chilled water temperature of user side heat exchanger 3 water side outlet ends as control signal, the operating frequency of control compressing mechanism 1, that is: compressing mechanism 1 is controlled the chilled water temperature of user side heat exchanger 3 water side outlet ends with the mode of frequency conversion.When the actual chilled water temperature of user side heat exchanger 3 water side outlet ends is higher than the chilled water temperature desired value of its port of export, then increase the operating frequency of compressing mechanism 1; When the actual chilled water temperature of user side heat exchanger 3 water side outlet ends is lower than the chilled water temperature desired value of its port of export, then reduce the operating frequency of compressing mechanism 1.

Cubic case:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor.The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is regulated the valve opening size of the 5th water flow control valve 125 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

(2) summer and transition season are produced chilled water and hot water function simultaneously

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot water circulating pump 50, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121 is opened, and second water flow control valve 122 is closed; The 5th water flow control valve 125 and bypass regulator valve 130 operate as normal.

First scheme:

Hot water circulating pump 50, air conditioner water circulating pump 51 all are the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor; First water flow control valve 121 is the moving control valves (or being called straight-through electric control valve) of two energisings.

The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is regulated the valve opening size of the 5th water flow control valve 125 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the valve opening size of first water flow control valve 121 as control signal, regulates the hot water flow through reheater 30 that is:, thereby change air is carried out the heat of heat again; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of first water flow control valve 121; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of first water flow control valve 121.

Alternative plan:

Hot water circulating pump 50 is a variable frequency pump, and air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor; First water flow control valve 121 is a magnetic valve.

The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the operating frequency of hot water circulating pump 50 as control signal, regulates the hot water flow through reheater 30 that is:, thereby change air is carried out the heat of heat again; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the operating frequency of hot water circulating pump 50; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the operating frequency of hot water circulating pump 50.

Third party's case:

Hot water circulating pump 50, air conditioner water circulating pump 51 all are the constant speed water pump; Compressing mechanism 1 is a constant speed compressor; First water flow control valve 121 is the moving control valves (or being called straight-through electric control valve) of two energisings.

It must be noted that: when adopting this programme, in the hot water subsystem of airhandling equipment water system, should increase a storage heater, described storage heater is a hot-water cylinder normally, and a hot water outlet and a hot water inlet are generally arranged.Be used to store the condensation heat that part refrigeration is produced.

During work; The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal; Regulate the valve opening size of the 5th water flow control valve 125, that is: regulate chilled-water flow, thereby change the cold of cooling air through cooler 100; During operation; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

With the chilled water temperature of user side heat exchanger 3 water side outlet ends as control signal, the start and stop of control compressing mechanism 1, that is: compressing mechanism 1 is controlled the chilled water temperature of user side heat exchanger 3 water side outlet ends with the mode of start-stop.The chilled water temperature of user side heat exchanger 3 water side outlet ends is changing in an interval of the chilled water temperature desired value of its port of export; When the actual chilled water temperature of user side heat exchanger 3 water side outlet ends was lower than the minimum of a value of chilled water temperature desired value constant interval of its port of export, then compressing mechanism 1 was out of service; When the actual chilled water temperature of user side heat exchanger 3 water side outlet ends was higher than the maximum of chilled water temperature desired value constant interval of its port of export, then compressing mechanism 1 brought into operation again.

In the course of work, hot water circulating pump 50, air conditioner water circulating pump 51 be operate as normal always, and when compressing mechanism 1 was out of service, the hot water that then utilizes hot-water cylinder and stored carried out heat again to air.

Cubic case:

Hot water circulating pump 50 is a variable frequency pump, and air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor; First water flow control valve 121 is a magnetic valve.

During operation; The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal; Regulate the valve opening size of the 5th water flow control valve 125, that is: regulate chilled-water flow, thereby change the cold of cooling air through cooler 100; During work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then reduce the valve opening of the 5th water flow control valve 125; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase the valve opening of the 5th water flow control valve 125.

(3) produce hot water function winter separately

During work, air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 operate as normal; First throttle mechanism 5 closes, second throttle mechanism, 7 operate as normal; First water flow control valve 121 is closed, and second water flow control valve 122 is a magnetic valve, is in opening all the time; The 5th water flow control valve 125 is electronic two logical control valves, operate as normal.Control method under this function is following.

First scheme:

Hot water circulating pump 50 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor.

The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the valve opening size of the 5th water flow control valve 125; That is: the hot water flow of reheater 30 and cooler 100 is passed through in adjusting, thereby changes the heat that adds hot-air; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of the 5th water flow control valve 125; When the dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of the 5th water flow control valve 125.

In the course of work, hot water circulating pump 50 is worked always.

Alternative plan:

Hot water circulating pump 50 is the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor.

The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the valve opening size of the 5th water flow control valve 125; That is: the hot water flow of reheater 30 and cooler 100 is passed through in adjusting, thereby changes the heat that adds hot-air; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of the 5th water flow control valve 125; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of the 5th water flow control valve 125.

Scheme shown in Figure 3; The 5th water flow control valve 125 is mounted in cooler 100 ports of export; But in actual application, the 5th water flow control valve 125 also can be installed in the arrival end of cooler 100, in the course of the work; Equally also can realize the above-described all functions of present embodiment scheme shown in Figure 3, and the control method under each function.

When the 5th water flow control valve 125 is installed in the arrival end of cooler 100; As shown in Figure 4; At this moment; The 5th water flow control valve 125 with bypass regulator valve 130 at the connectivity scenario of airhandling equipment water system shown in Figure 4 is: the 5th water flow control valve 125 1 ends link to each other with cooler 100 arrival ends; The 5th water flow control valve 125 other ends link to each other with the 101 pipeline 101 of user side heat exchanger 3 water side outlet ends; The entrance point of bypass regulator valve 130 links to each other with the 101 pipeline 101 between the 5th water flow control valve 125 and the user side heat exchanger 3 water side outlet ends, and the port of export of bypass regulator valve 130 links to each other with the 102 pipeline 102 of air conditioner water circulating pump 51 arrival ends.

Embodiment 3

As shown in Figure 5, the difference of it and embodiment 1 airhandling equipment water system shown in Figure 2 is: present embodiment airhandling equipment water system shown in Figure 5 has increased a three-way flowrate control valve 140 in its air conditioner water subsystem.

Three-way flowrate control valve 140 at the connectivity scenario of airhandling equipment water system shown in Figure 5 is: the direct current tie point E of three-way flowrate control valve 140 links to each other with cooler 100 ports of export; The interflow tie point B of three-way flowrate control valve 140 links to each other with the 102 pipeline 102 of air conditioner water circulating pump 51 arrival ends, and the by-pass flow tie point F of three-way flowrate control valve 140 links to each other with the 101 pipeline 101 between user side heat exchanger 3 water side outlet ends and the cooler arrival end.

When practical application, three-way flowrate control valve 140 normally adopts the electric three-way control valve.In the running; Three-way flowrate control valve 140 is according to the air ' s wet bulb temperature of the air conditioner unit 110 air side arrival ends or the port of export or the measured value of air dry-bulb temperature; According to predefined air themperature desired value; Regulate chilled-water flow, make the air ' s wet bulb temperature of the air conditioner unit 110 air side arrival ends or the port of export or air dry-bulb temperature equal its air themperature desired value through cooler 100.

Owing to increased three-way flowrate control valve 140 in the airhandling equipment water system shown in Figure 5; Therefore; Producing separately chilled water function, summer and transition season when it in summer produces when working chilled water and hot water function under simultaneously; But air conditioner water circulating pump 51 constant speed operation, or directly adopt the constant speed water pump, the chilled-water flow through user side heat exchanger 3 water sides can be maintained definite value.

Scheme shown in Figure 5; Three-way flowrate control valve 140 is mounted in cooler 100 ports of export, but in actual application, three-way flowrate control valve 140 also can be installed in the arrival end of cooler 100; In the course of the work, this scheme equally also can realize the above-described function of scheme shown in Figure 5.

When three-way flowrate control valve 140 is installed in the arrival end of cooler 100; As shown in Figure 6; At this moment; Three-way flowrate control valve 140 at the connectivity scenario of airhandling equipment water system shown in Figure 6 is: the direct current tie point E of three-way flowrate control valve 140 links to each other with cooler 100 arrival ends; The interflow tie point B of three-way flowrate control valve 140 links to each other with the 101 pipeline 101 of user side heat exchanger 3 water side outlet ends, and the by-pass flow tie point F of three-way flowrate control valve 140 links to each other with the 102 pipeline 102 of air conditioner water circulating pump 51 arrival ends.

Chilled water function, summer and transition season are produced chilled water simultaneously and the control method of producing separately under the hot water function in hot water function, winter is following realizing producing separately summer for Fig. 5 and airhandling equipment water system shown in Figure 6.

(1) produces the chilled water function summer separately

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot water circulating pump 50 is not worked, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121, second water flow control valve 122 are closed; Three-way flowrate control valve 140 operate as normal.

First scheme:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor.The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the valve opening size of three-way flowrate control valve 140 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then utilize three-way flowrate control valve 140 to reduce chilled-water flow through cooler 100; Increase the bypass flow of three-way flowrate control valve 140 chilled waters; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then increase chilled-water flow, reduce the bypass flow of three-way flowrate control valve 140 chilled waters through cooler 100.

Alternative plan:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor.

The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is regulated the valve opening size of three-way flowrate control valve 140 as control signal, regulates the chilled-water flow through cooler 100 that is:, thereby changes the cold of cooling air; During work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then utilize three-way flowrate control valve 140 to reduce chilled-water flow through cooler 100; Increase the bypass flow of three-way flowrate control valve 140 chilled waters; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase chilled-water flow, reduce the bypass flow of three-way flowrate control valve 140 chilled waters through cooler 100.

Third party's case:

Air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a frequency-changeable compressor.

During operation; The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is as control signal; Regulate the valve opening size of three-way flowrate control valve 140, that is: regulate chilled-water flow, thereby change the cold of cooling air through cooler 100; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then utilize three-way flowrate control valve 140 to reduce chilled-water flow through cooler 100; Increase the bypass flow of three-way flowrate control valve 140 chilled waters; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then increase chilled-water flow, reduce the bypass flow of three-way flowrate control valve 140 chilled waters through cooler 100.

Cubic case:

During work, first throttle mechanism 5 operate as normal, second throttle mechanism, 7 standard-sized sheets; Hot water circulating pump 50, air conditioner water circulating pump 51 operate as normal; First water flow control valve 121 is opened, and second water flow control valve 122 is closed; Three-way flowrate control valve 140 operate as normal.

First scheme:

During operation; The wet-bulb temperature that is processed air that is detected with first temperature-detecting device 51 is as control signal; Regulate the valve opening size of three-way flowrate control valve 140, that is: regulate chilled-water flow, thereby change the cold of cooling air through cooler 100; During work; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is lower than the wet-bulb temperature desired value; Then utilize three-way flowrate control valve 140 to reduce chilled-water flow through cooler 100; Increase the bypass flow of three-way flowrate control valve 140 chilled waters; When the actual wet-bulb temperature that is processed air that is detected when first temperature-detecting device 51 is higher than the wet-bulb temperature desired value, then increase chilled-water flow, reduce the bypass flow of three-way flowrate control valve 140 chilled waters through cooler 100.

Alternative plan:

Third party's case:

Hot water circulating pump 50, air conditioner water circulating pump 51 all are the constant speed water pump; Compressing mechanism 1 is a constant speed compressor; First water flow control valve 121 is the moving control valves (or being called straight-through electric control valve) of two energisings.It must be noted that: when adopting this programme, in the hot water subsystem of airhandling equipment water system, should increase a storage heater, described storage heater is a hot-water cylinder normally, and a hot water outlet and a hot water inlet are generally arranged.Be used to store the condensation heat that part refrigeration is produced.

The dry-bulb temperature that is processed air that is detected with second temperature-detecting device 52 is regulated the valve opening size of first water flow control valve 121 as control signal, regulates the hot water flow through reheater 30 that is:, thereby change air is carried out the heat of heat again; During work; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is lower than the dry-bulb temperature desired value; Then increase the valve opening of first water flow control valve 121; When the actual dry-bulb temperature that is processed air that is detected when second temperature-detecting device 52 is higher than the dry-bulb temperature desired value, then reduce the valve opening of first water flow control valve 121.In the course of work, hot water circulating pump 50, air conditioner water circulating pump 51 be operate as normal always, and when compressing mechanism 1 was out of service, the hot water that then utilizes hot-water cylinder and stored carried out heat again to air.

Cubic case:

Hot water circulating pump 50 is a variable frequency pump, and air conditioner water circulating pump 51 is the constant speed water pump; Compressing mechanism 1 is a constant speed compressor; First water flow control valve 121 is a magnetic valve.It must be noted that: when adopting this programme, in the hot water subsystem of airhandling equipment water system, should increase a storage heater, described storage heater is a hot-water cylinder normally, and a hot water outlet and a hot water inlet are generally arranged.Be used to store the condensation heat that part refrigeration is produced.

(3) produce hot water function winter separately

During work, air conditioner water circulating pump 51 is not worked, hot water circulating pump 50 operate as normal; First water flow control valve 121 is closed, second water flow control valve, 122 operate as normal; Three-way flowrate control valve 140 is operate as normal also, and its direct current tie point E is communicated with interflow tie point B, and its by-pass flow tie point F closes.

At this moment, Fig. 5 and airhandling equipment water system shown in Figure 6 can be realized airhandling equipment water system all control methods under this function that embodiment 1 is shown in Figure 2.

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

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 exchange device, 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 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 said finned heat exchanger is generally the aluminum or aluminum alloy material, also uses copper material in some special occasions.That the shape of fin usually adopts is plate, in ripple type or the slitted fin type any one.

In the scheme of above-mentioned all embodiment, any even all water flow control valves in described first water flow control valve 121, second water flow control valve 122 can adopt magnetic valve or have in the flow control device of turn-off function any one and substitute.

Claims

1. an airhandling equipment water system comprises air conditioner water subsystem and hot water subsystem;

2. airhandling equipment water system according to claim 1; It is characterized in that one the 5th water flow control valve (125) one ends link to each other with said cooler (100) arrival end; Said the 5th water flow control valve (125) other end links to each other with the 101 pipeline (101) of said user side heat exchanger (3) water side outlet end; The entrance point of one bypass control valve (130) links to each other with the 101 pipeline (101) between said the 5th water flow control valve (125) and user side heat exchanger (3) the water side outlet end, and the port of export of said bypass regulator valve (130) links to each other with the 102 pipeline (102) of said air conditioner water circulating pump (51) arrival end.

3. airhandling equipment water system according to claim 1; It is characterized in that one the 5th water flow control valve (125) one ends link to each other with said cooler (100) port of export; Said the 5th water flow control valve (125) other end links to each other with the 102 pipeline (102) of said air conditioner water circulating pump (51) arrival end; The entrance point of one bypass control valve (130) links to each other with the 101 pipeline (101) between said user side heat exchanger (3) water side outlet end and cooler (100) arrival end, and the port of export of said bypass regulator valve (130) links to each other with the 102 pipeline (102) between said the 5th water flow control valve (125) and air conditioner water circulating pump (51) arrival end.

4. airhandling equipment water system according to claim 1; The direct current tie point (E) that it is characterized in that a three-way flowrate control valve (140) links to each other with said cooler (100) port of export; The interflow tie point (B) of said three-way flowrate control valve (140) links to each other with the 102 pipeline (102) of said air conditioner water circulating pump (51) arrival end, and the by-pass flow tie point (F) of said three-way flowrate control valve (140) links to each other with the 101 pipeline (101) between said user side heat exchanger (3) water side outlet end and cooler (100) arrival end.

5. airhandling equipment water system according to claim 1; The direct current tie point (E) that it is characterized in that a three-way flowrate control valve (140) links to each other with said cooler (100) arrival end; The interflow tie point (B) of said three-way flowrate control valve (140) links to each other with the 101 pipeline (101) of said user side heat exchanger (3) water side outlet end, and the by-pass flow tie point (F) of said three-way flowrate control valve (140) links to each other with the 102 pipeline (102) of said air conditioner water circulating pump (51) arrival end.

6. airhandling equipment water system according to claim 1 is characterized in that described first water flow control valve (121) is the moving control valves of two energisings.

7. airhandling equipment water system according to claim 1 is characterized in that described second water flow control valve (122) is the moving control valves of two energisings.

8. airhandling equipment water system according to claim 1 is characterized in that described hot water circulating pump (50) is a variable frequency pump.

9. airhandling equipment water system 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, said reheater (30) is in the downwind side of said cooler (100).

10. according to the described airhandling equipment water system of arbitrary claim in the claim 2 and 3, it is characterized in that described the 5th water flow control valve (125) is the moving control valves of two energisings.