KR100245587B1 - Hvac cooling water control system and control method for high-rise building - Google Patents

Abstract

The present invention relates to an air-conditioning water control method and an air-conditioning water control system of a high-rise building, comprising: a primary circulation pump system composed of a plurality of heat source devices and a circulation pump and supplying a circulated flow rate; A secondary circulation pump system configured to receive and output a flow rate of the heat source supply system, and include a plurality of circulation pumps, a pump control valve, and a plurality of pressure escape and retention valves connected in parallel to the circulation pump and the pump control valve; A circulation line connected to the output side of the secondary circulation pump system and purified to low, middle, and high-rise subsidiary systems, respectively; Not only is the system suitable for the high-rise building of unit buildings that do not use the local heat source, it is composed of a guinea circulation system consisting of a decompression and maintenance valve that returns the flow rate of the circulation line to a constant pressure after decompression, and saves energy and uses space. It is possible to operate stably by keeping constant the internal pressure of air conditioning piping water control system.

Description

Air conditioning control method and system of air conditioning system of high-rise building

The present invention relates to a method and system for controlling air conditioning water in high-rise buildings.

Generally, the air conditioning equipment includes a refrigerator, a cooling tower, a boiler, an air conditioner, a blower, a heat exchanger, a circulation pump, and most of the primary heat source equipment (such as a refrigerator and a boiler) has a water circuit. Because of this, it is directly affected by water pressure.

Unlike the system used in the normal building, the system of vertically elevated skyscrapers has to consider the system suitable for the characteristics of the skyscraper. In high-rise buildings, the pressure increases with height, so it is necessary to maintain the high pressure applied to the arrangement of the air conditioning equipment in an appropriate pressure range.

As this phenomenon is gradually increasing in buildings, the role of air conditioning facilities is becoming more important in the design of high-rise buildings in terms of environment and function.

Advanced foreign technologies are introduced to implement the arrangement-related pressure control system in such high-rise building air conditioning facilities. In reality, it was not in line with the circumstances of our country, so that various difficulties occurred.

The air conditioning system control system, which is attracting attention as the best technology to date, has implemented the apparatus as shown in FIG.

That is, the low-level sub-system 100, the middle sub-system 200, and the high-level sub-system 300 consisting of several layers each are made of an air-conditioning system as shown in the figure. The principle of this system is as follows.

In this circulation system, the fruits supplied through the circulation pumps P11, P12, and P13 of the cold water secondary circulation pump system (Zone 2) are circulated to each of the low, middle and high-floor sub-systems. Shut down valves (SV1, SV2, SV3, SV4) are configured to interlock with circulation pumps (P11, P12, P13) and have an auxiliary function to prevent pressure leakage of the valve when the pump is stopped. The differential pressure valves DPV1, DPV2 and DPV3 are installed in parallel with the circulation pumps P11, P12 and P13 so that the output side (p3) can be bypassed when the pressure difference is higher than the set differential pressure. The pressure change was being resolved. In this way, the cold water supplied from the supply side is circulated along the piping line of the lower part system 100, the middle part system 200, and the upper part system 300, and returns to the supply side by reducing the elevated pressure at the return side p2. Sending

In this case, the cold water supplied from the return side p2 is depressurized by the pressure reducing valves PRV1 and PRV2 and then sent to the cold water primary circulation pump system (zone 4). Where M1, M2 and M3 are flowmeters and (section 5) is a diagram of the surge tank section.

At this time, the dehydrated fruit (water) is the second circulating pump (water) cooled (or heated) in the primary circulation pumps (P1, P2, P3, P4) and the heat source equipment (CH1, CH2, CH3, CH4). P11, p12, and p13 are introduced into the secondary circulation pump system (Zone 2), and the circulation pumps (P1, P2, P3, and P4) of the primary circulation pump system and the circulation pumps of the cold water secondary circulation pump system (P11, P12 and P13 are driven by a control signal, a control panel (not shown) driven in accordance with the use of the air conditioner.

In such an air-conditioning water system, cold water is reduced and then sent to the resupply side, but the internal supply side p1 of the internal device must always maintain a constant pressure. The internal supply side pressure p1 caused a problem that the system did not operate normally when the pressure fluctuated. There have been cases where this system has been applied to domestic skyscrapers, but all have failed.

The reason for this is to solve the pressure fluctuation of the supply side p3 generated by supplying the cold water to the respective layers through the circulation pumps P11, P12 and P13 on the supply side as the differential pressure valves DPV1, DPV2 and DPV3. Since the pressure on the return side is controlled by the pressure reducing valve only on the primary side, if the pressure on the primary side occurs, the pressure on the secondary side will fluctuate (raise). In addition, when the pressure fluctuates due to the hunting (hunting) and residual deviation (offset) of the valve, the internal pressure on the supply side (p1) gradually increases during each recirculation because the pressure that flows back to the inside cannot be prevented. This unworkable problem was occurring in domestic skyscrapers using this system.

However, in case of advanced foreign countries, internal pressure change is absorbed since the system uses the method of supplying the local heat source and is connected to the external local heat source piping line in the lines LS and LR shown in FIG. On the other hand, in Korea, it is difficult to apply this system because the use of local heat sources is not common.

The present invention is to solve such a problem, it is an object of the present invention to provide a method and system for controlling the air conditioning system of high-rise building suitable for high-rise building of unit buildings that do not use the local heat source.

Another object is to provide an air conditioning control method and an air conditioning control system of a high-rise building that can be operated safely while maintaining the internal pressure of the air conditioning control system.

As a specific means of the present invention for achieving the above object, the air conditioning control air conditioning water control method of a high-rise building is a high-rise building consisting of a low-level sub-system, a middle sub-system, a high-rise sub-system is a pipe network, In a high-rise building consisting of low-floor, mid-floor, and high-floor systems consisting of piping networks, the flow rate supplied through the circulation pump system is controlled in proportion to the load (output) for the pressure control of the air conditioning piping system for cooling and heating supply. At the same time, the supply process of maintaining the supply pressure of the air-conditioning water control unit and supplying cooling and heating while circulating each of the low, middle, and high-level subsidiary systems through the supply process maintain the system pressure at a safe working pressure of the equipment. Maintenance process, and the pressure of the return side circulated through the above maintenance process Reduced pressure proportionally controlled by, and comprises a return process of sending a reduced pressure process and the pressure reduced pressure through the reduced pressure process into the circulation pump to maintain a constant pressure of the air conditioning control can.

In the high-rise building air conditioning system of the present invention, the low, medium, high-rise sub-system air conditioning pipe is configured and installed, in a high-rise building consisting of a supply circulation pump system and a return circulation system, composed of a plurality of heat source equipment and circulation pump A primary circulation pump system for supplying a circulating flow rate; A secondary circulation pump system configured to receive and output a flow rate of the heat source supply system, and include a plurality of circulation pumps, a pump control valve, and a plurality of pressure escape and retention valves connected in parallel to the circulation pump and the pump control valve; A circulation line connected to an output side of the secondary circulation pump system and circulated to low, middle, and high-rise subsidiary systems, respectively; It is composed of a feedback circulation system consisting of a pressure reduction and a maintenance valve for maintaining the flow rate of the circulation line at a constant pressure after decompression.

In addition, looking at the technical process to be solved of the present invention, it is very difficult to maintain a constant internal pressure of the air conditioning controller in the air conditioning system water control system of the high-rise building.

In the present invention, as described above, the pressure fluctuation (rising) caused by hunting and residual off-set of the valve generated while the system is in operation, and at every start and stop of the pump In order to smoothly control the pressure fluctuations (rising) caused by water hammer and cold water drop, first of all, it is necessary to comprehensively understand the characteristics of the pressure diagram of the system and the conditions of the pump to make a system configuration and apply the appropriate pressure control bar. It is necessary to select and solve by applying the following characteristics technically.

(1) Excessive pressure

Excessive pressure is often one of the major causes of problems in water piping systems. It is conceivable that the pressure problem in the water piping system is also applied to the pressure problem in the air-conditioning system. Excessive pressure not only impairs the operation of the plant but also increases costs in many aspects of maintenance and management.

If the operation of any equipment or system does not require particularly high pressure, it is unreasonable to configure it to exceed the maximum pressure at the outlet (e.g. 12.5 kg / cm 2) and to limit the maximum pressure (e.g. 10.5 kg / cm 2) if possible. It is preferable.

(2) Selection of pressure regulating valve

The pressure control valves used in this system are as follows.

1) pressure reducing & pressure sustaining valve

2) pressure relief & pressure sustaining valve

3) There is a booster pump valve.

The above valves are pressure control valves and have advanced functions that add the necessary functions to a pressure reducing valve. These basic characteristics can be applied in common.

Pressure redgulating valves are the best way to reduce the operating pressure below the set maximum pressure (eg 12.5kg / ㎠). In addition to the pressure reducing valve, there are many ways to reduce the pressure, but some of these methods cannot maintain the pressure within a certain range when the required quantity changes or the inlet pressure changes.

Problems arise when the installed pressure reducing valve is further reduced in pressure than the predetermined design pressure. This cannot be solved simply by changing or adjusting the spring.

Most of these problems are caused by inappropriate valve size and improper selection of valves, that is, problems due to insufficient discharge capacity of the valve and insufficient discharge pressure. Therefore, a small valve should be replaced with a valve of sufficient size.

On the other hand, too large valves also cause problems, and oversized pressure reducing valves that have to handle both small and large flows produce high noise during operation and valve seats at minimum flow rates. ) Is very small, which can lead to wire-drawing and seat erosion.

The size and selection of the pressure reducing valve is very important and the size of the valve should be smaller than the pipe to which the valve will be installed so as to carry the flow rate at a stable pressure rather than to exactly fit the size of the pipe in which the valve will be installed.

The flow rate of the valve is controlled by the pressure difference between the inlet and outlet outlets. The larger the pressure difference, the smaller the flow rate. If the pressure difference is too large, the valve may cause a cavitation, resulting in noise and chattering (unstable state where the valve disc repeatedly taps the valve seat).

And excessive decompression causes cavitation (cavitaion), so the valve is selected using the characteristics of the cavitation. Continued use in the cavitation area will seriously damage the valve and must be selected outside the cavitation area. If the pressure drop is in the area of cavitation, reduce the pressure to two stages. In the case of 1-stage decompression valve, the pressure reducing valve should be structured to close the main valve in case of failure, in case of 2-stage decompression valve, the high pressure side pressure reducing valve should be opened in case of failure and the low pressure side pressure reducing valve should be closed in case of failure.

(4) paralleled installaction

When a wide range of flow rates is required, selecting one valve will satisfy both small and large flows while reducing pressure to the required pressure. When very small flow rates are required, the valve seat should open very little and close immediately. Repeating this process causes excessive wear on the moving parts and chattering. It can also cause noise.

This problem can be solved by installing two large and small valves in parallel.

When the required flow rate is small, a small-caliber valve designed to fit a small volume is opened, at which time the valve seat opens to the maximum for smooth and quiet automatic operation. If the flow rate is increased above the capacity of the small flow rate valve, the large-diameter valve will operate to supply the large flow rate. In general, when two valves of different apertures are installed, a ratio of 80% to 20% of the total flow is recommended. At this time, the secondary pressure of the large-diameter valve is set to the required pressure of the system, and the secondary pressure of the small-diameter valve is about 0.5-1.0 bar higher than this. This allows the small valve to operate while the large valve is locked in the load range from very small flow rates to the valve's capacity.

1 is a schematic diagram of air-conditioning hydraulic pressure receiving system which is widely used in high-rise buildings in local heat sources.

2 is a system diagram of an air-conditioning system pressure receiving system of a high-rise building showing an embodiment of the present invention.

3 is a block diagram of a pressure reducing and holding valve used in an air conditioning system hydraulic pressure reducing system used in the embodiment of FIG.

4 is a block diagram of a pressure reducing and holding valve used in an air conditioning system hydraulic pressure reducing system used in the embodiment of FIG.

* Explanation of symbols for main parts of the drawings

Zone 1: Air-conditioning water control section Zone 2: Secondary circulation pump system

Zone 3: Pressure Reducing and Holding Valve Systems Zone 4: Heat Source Equipment (Freezers and Boilers)

Zone 5: Surge tank section P11, P12, P3, P4: Primary circulation pump

P11, P12, P13: Secondary circulation pump

PCV1, PCV2, PCV3: Pump Control Valve

RSV1, RSV2, RSV3: (pressure relief & sustaining valve)

RV1, RV2, RV3: (relief valve) pressure escape valve

CV1, CV2, CV3: (check valve) check valve

PRSV1, PRSV2, PRSV3: (pressure reducing & sustaining valve)

M1, M2, M3: (meter) flowmeter

p1: Reference pressure (design pressure considering equipment safety)

p2: Return pressure (return pressure)

p3: pump discharge pressure

DPV1, DPV2, DPV3: (differantial pressure valve) Differential pressure valve

PRV1, PRV2: (pressure reducing valve)

SV1, SV2, SV3, SV4: (butter fly valve) used as on / off valve

CH1, CH2, CH3, CH4: Heat source equipment such as freezer, boiler, cold and hot water machine

ET: (expantion tank) expansion tank

100: low floor heating and cooling load

200: middle floor heating and cooling load

300: high-floor system heating and cooling load

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention.

Figure 2 shows the air conditioning system hydraulic pressure reduction system of a high-rise building specifically showing an embodiment of the present invention.

The low-level sub-system 100, the middle sub-system 200, the high-level sub-system 300 is provided with a pipe for the air conditioning control system, not shown, respectively, each of the low-level sub-system 100, the middle sub-system 200 , High-rise sub-system 300 is composed of a pipe network is connected to the air conditioning water control unit (zone 1).

RV1, RV2 and RV3 are the pressure escape valves and CV1, CV2 and CV3, which are connected to the surge tank (zone 5) installed in the upper part of the piping system, are backflow prevention valves.

The air-conditioning control unit (zone 1) has a pressure reducing and holding valve (PRSV1, PRSV2, PRSV3), flow meters (M1, M2, M3) connected thereto, and a heat source device and a cold water primary circulation pump (connected through the flow meter). P1, P2, and P3 and a cold water secondary circulation pump system (2 zones) for receiving cold water from the cold water primary circulation pumps P1, P2 and P3 and outputting them to the outside.

Cold water primary circulation pump system (zone 4) consists of a plurality of circulation pumps (P1, P, P3) and heat source equipment (CH1, CH, CH3), cold water secondary circulation pump system (zone 2) Multiple pressure escapes and maintenance connected in parallel to the circulation pumps (P11, P12, P13) and pump control valves (PCV1, PCV2) and the circulation pumps (P11, P12, P13) and the pump control valves (PCV1, PCV2) It consists of valves RSV1, RSV2, and RSV3.

ET is an expansion tank connected to the cold water primary circulation pump system.

The heat source equipment CH1, CH2, CH3, CH4 represents a freezer at the time of cooling and a boiler at the time of heating.

The functions of each component of the cold water pressure reduction system of the present invention made as described above are very important for constituting the system.

① Pressure reducing & pressure sustaining valve

The pressure relief and retention valves PRSV1, PRSV2 and PRSV3 can automatically perform two independent functions. It has the function of maintaining a constant pressure on the secondary side of the valve and a function of maintaining an unconstrained limited minimum pressure on the primary side. This function is the most important function of the cold water pressure reduction system of the present invention.

The decompression function responds to minute changes in the secondary pressure, allowing the set pressure on the secondary side of the valve to be kept constant immediately.

The inside thereof is the same as the block diagram of FIG. 3, and the primary side and the secondary side of the pressure reducing and holding valve PRSV are respectively the primary pressure sensor SS1 and the secondary pressure sensor SS2 around the pressure reducing and holding valve PRSV. ) And service valves (GV1, GV2). ST is a filter.

Therefore, the pressure reducing and holding valve PRSV is a valve for maintaining the pressure on the primary side at the set pressure while maintaining the state of the set pressure at the secondary side serving as the reference pressure at all times. When the primary pressure decreases, the pressure is sensed by the sensor SS1, and the pressure reducing and holding valve PRSV is automatically closed by the pilot control, and the pressure is increased to maintain a constant pressure. If the added pressure or the returned pressure raises the secondary pressure, the sensor SS2 senses the decompression and retention valves PRSV to close, thereby preventing the backflow phenomenon.

In particular, the function of pressure maintenance is to install in the pipe between the upper section and the lower section where the hunting and hunting of the valve occurs in the vertical height of the pipe of different vertical height to prevent the pressure shortage of the upper section, The high pressure of the pipe prevents the phenomenon of flowing into the low pipe.

② pressure relief and pressure sustaining valve

The pressure escaping and holding valves RSV1, RSV2, RSV3 are valves for maintaining the primary pressure constant and are adjusted by pilot control. The valve's pressure evacuation and retention function bypasses the load by providing a constant pressure.

Therefore, the pressure of the primary pressure, which is the back pressure control function and the upper pressure, which maintains the pressure at the reference pressure point p1 constant, serves to maintain the adjusted pressure.

③ pump control valve

Pump control valves (PCV1, PCV2, PCV3) are installed on the discharge side pipe of the booster pump (cold water circulation pump) to control the discharge function and discharge pressure. Valve.

When the pump starts to run with the valve closed, the pilot electronic control valve is energized, which gradually starts to open, gradually raising the pressure in the pipe to the pump head.

When a stop signal is applied to the pump, the power supplied to the pilot electronic control valve is cut off, and the valve closes slowly and reduces the flow rate. As such, when the valve is closed, the pump is turned off by operating a limit switch, which is electrically locked between the pump and the valve, thereby stopping the pump.

If the power is cut off suddenly (in case of power failure), the flow stops the moment the built-in check valve is closed, and closes the valve regardless of the position of the solenoid or diaphragm. Prevent backflow.

④ surge tank

In the air conditioning system, surge tank (Zone 5) has the following functions.

Pressure control valves function to control pressure fluctuations that occur during different opening or closing times. The surge valve prevents surge when the control valve closes suddenly, and the relief valve opens to escape the pressure when the supply water tank function and sudden pressure expansion.

⑤ expansion tank

Air pressure sealed tanks include pressurized tanks, air compressor air escape valves, water escape valves, emergency escape valves, supply water lines, and alarm devices.

Absorb pressure fluctuations in the return header (reference pressure set point) during operation of the decompression system, and absorb the amount of water expansion due to the temperature rise when the system is stopped so that the pressure in the return header is kept constant at all times. To be

Looking at the water circulation process in the present invention configured as described above, in the present invention, the internal pressure of the air-conditioning control unit (zone 1), which is the reference, should always be kept constant. In this way, a control controller (not shown) is operated according to the control of the heat source used in the low, medium, and high-floor sub-systems 100, 200, and 300 while the internal pressure is kept constant. ) And the secondary circulation pump system (zone 2). First, the circulation pumps (P1, P2, P3, P4) of the primary circulation pump system (Zone 4) are driven to supply the secondary circulation pump system (Zone 2) and the cold water sent through the heat source equipment (CH1, CH2, CH3, CH4). The circulation pumps P11, P12, and P13 operate to output through the pump control valves PCV1, PCV2, and PCV3 to circulate with the low, medium, and high-floor sub-system heating and cooling loads. In this case, since the pump control valve is opened and closed in a proportional control manner rather than an intermittent on / off method, the pump control valve compares the pressures of the supply side p1 and the output side p3 so that the cold water is supplied by proportionally controlled opening so that there is no pressure variation.

In parallel, the pressure escape and holding valves RSV1, RSV2, and RSV3 are proportionally controlled, and when the pressure on the supply side p3 is high, the excess pressure is bypassed to maintain the pressure while maintaining the pressure (p1). ) Will always be able to maintain a certain pressure in any case.

At this time, the surge tank is able to store the water as a function of the escape pressure and the feed water tank. The precious fruit (water) is returned to the primary circulation pump system (zone 4) via the flowmeters M1, M2 and M3 through the pressure reducing and holding valves PRSV1, PRSV2 and PRSV3.

The pressure reducing and holding valves PRSV1, PRSV2, and PRSV3 have the functions shown in FIG. 3, and the valves are proportionally controlled so that the pressure at the return side (p2) and the inner side (p1) can be supplied at a constant pressure by comparing the internal pressure with the internal sensor. Since the return to the opening while the air pressure control unit (1 zone) the pressure inside the circulation is kept constant. The circulated cold water repeats the normal circulation process as described above through the circulation pumps P1, P2, P3, and P4 of the primary circulation pump system (zone 4) as described above. At this time, the expansion tank (ET) is a normal drive that serves to absorb and control the expansion pressure when the pressure of the reference pressure (p1) is inflated.

In the present invention, the operation in the emergency action is operated as follows (however, the pressure numbers shown here may vary depending on the design).

The static pressure point (reference pressure point) is set to 6.0 kg / cm < 2 > The expansion tank absorbs the inflated pressure (water) when the (static pressure point) pressure is raised by off-set and hunting of the valve. Water in the expansion tank raises the pressure in the air chamber and when the air pressure exceeds the set pressure (6.2kg / ㎠), the exhaust valve opens to release the air.

After that, when the water pressure continues to rise and reaches the set pressure (6.4 kg / cm 2), the water escape valve is opened to escape the water.

If the water pressure continues to rise, the cervical device activates to alert and open the emergency escape valve to escape the water.

When the pressure of the return header (reference pressure point) drops to 5.8 kg / cm 2, the air compressor operates to raise the pressure in the tank (6.0 kg / cm 2).

After that, if the pressure continues to fall, the feed water valve opens to replenish the water. If the pressure continues to fall, the low pressure alarm sounds at 5.3kg / cm2 to stop the system.

As described above, in the present invention, the control valves of the water pressure reducing system are mechanically the same as ordinary control valves, but the functions can be variously selected and designed and applied as necessary.

The pressure holding valve constantly controls the pressure at the valve primary side. That is, the pressure reducing and holding valves PRSV1, PRSV2, and PRSV3 applied to the pressure reducing system maintain the hydrostatic head pressure at the primary side of the valve, while maintaining the pressure at the reference static pressure point at the secondary side.

As for the change in pressure during operation of the system, when the reference point of the air-conditioning control unit (zone 1) is operated under the pressure, that is, the supply side p1 is in a steady state, the flow rate of the supply side p1 is decreased and the pressure is lowered. do. At this time, the pressure on the discharge side of the circulation pump increases. When the pressure on the discharge side of the circulating pump increases and rises, the pump control valves PCV1, PCV2, and PCV3 gradually open, and the pressure on the discharge side gradually rises. The flow rate returned through the load equipment (air conditioner, etc.) flows to the pressure reducing and holding valves PRSV1, RSV2, and PRSV3. At this time, the pressure of the return side p2, which is the primary side of the depressurization and holding valve, rises and the elevated pressure opens the depressurizing and holding valves PRSV1, PRSV2 and PRSV3. This allows the system to establish a normal flow rate circulation.

As described in detail above, the present invention supplies a flow rate while maintaining a constant pressure in the air conditioning water control unit (zone 1) during operation, and changes the input of the air conditioning water control unit (zone 1) according to the pressure returned during circulation. It can be greatly contributed to the stability and economics of the system as follows.

(1) system stability

The magnetic valves applied to the system of the present invention detect the pressure change in the pipe through the pilot pipe in the diaphragm and operate at the pressure of the fluid itself, thereby maintaining a stable system.

(2) Economics of the system

Compared with the heat exchange method most commonly adopted for the water pressure control of the air conditioning system in a high-rise building, it has been determined that the pressure reduction system of the present invention has an excellent energy saving effect and economy.

Claims (7)

In the piping of the air conditioning piping to the low-floor sub-system and the high-floor sub-system of the building and in communication with the heat source supply device by the supply circulation pump and the return circulation system, the supply circulation pump system is the flow rate of the heat source supply system Bypass only a certain pressure is supplied to the circulation pumps for supplying the system, the middle system and the high system, and the pump control valves installed in the circulation line that connects the circulation pump and the lower system, the middle system and the high system. A pressure escaping and holding valve for reducing the load is connected in parallel to enable pressure control so that the pressure is supplied proportionally in proportion to the load of the flow rate and the supply side pressure is constant; Maintaining the pressure of the system for supplying cooling and heating by circulating the low-level subsidiary system, the high-level subsidiary system, and the high-level subsidiary pipe through the supply process at a safe working pressure of the equipment by a pressure escape valve and a check valve; Ultra-high floor characterized in that the pressure of the return pipe to be purified through the maintenance process pressure-reduced in a proportional control method according to the self-pressure by the pressure reduction and the maintenance valve and maintains this pressure constant and circulated to the heat source supply system Air conditioning control method of building. The air-conditioning piping is piped to the lower part of the building, the middle part of the building and the high part of the building by a circulation line, and the lower part, the middle part of the system and the high part of the floor are connected to the heat source supply system by the circulation lines of the supply circulation pump system and the return circulation system, respectively. In connection with each other, the supply circulation system includes a primary circulation pump system for supplying a flow rate to the heat source supply system by a plurality of circulation pumps, and a flow rate discharged from the heat source supply system to the plurality of circulation pumps and pump control valves. The secondary circulating pump system which is pumped to the low-level sub-system, the middle sub-system and the high-level subsidiary system are connected to each other by the circulation line, and the pressure to reduce the load by bypassing only a constant pressure is supplied to each of the circulation pump and the pump control valve. Escape and retaining valves are connected in parallel to allow pressure control; The return circulation system is provided with a pressure escape valve for maintaining the flow rate at a constant pressure in the output side circulation lines of the low-level subsidiary system, the middle subsidiary system and the high-rise subsidiary system to return to the primary circulation pump system, and each circulation pump inlet side of the primary circulation pump system. The air-conditioning water control system of a high-rise building, characterized in that the decompression and holding valve for maintaining the pressure at a constant pressure after the decompression in the circulation line. According to claim 2, Each circulation pump of the primary circulation pump system and the secondary circulation pump system Air conditioning water control of the ultra-high rise building, characterized in that driven by the control signal of the control control unit for sensing and controlling the amount of the load device used electrically system. 3. The air conditioning water control system according to claim 2, wherein a surge tank is connected to the circulation line, and a pressure escape valve and a check valve are connected to the surge tank. 3. The air conditioning water control system according to claim 2, wherein the primary circulation pump system is configured to communicate with an expansion tank capable of absorbing, escaping, and adjusting the expansion pressure. The high-rise building of claim 2, wherein the pressure reducing valve and the holding valve of the return circulation pump system are provided with a control sensor and a service valve which control the pressure on the supply side and the output side so that there is no pressure fluctuation. Air Conditioning Control System. 7. The air-conditioning water control system of an ultra high-rise building according to claim 2 or 6, wherein the pressure reducing and holding valves of the return circulation pump system are provided in two stages to prevent cavitation occurring when the high-pressure pressure is reduced. .

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