KR100314663B1 - Apparatus For Suppling Water Using Air Pressure and inverter - Google Patents

Abstract

The present invention uses a pressurized tank for pumping water at a pressure of air and a plurality of pumps which are started sequentially according to the amount of water used to control the pump number and rotational speed and effectively supply the required amount of water supply as well as a separate pressurized tank. The present invention relates to a water supply and fire extinguishing water supply device using an air pressure and an inverter to be supplied using a pump, and a pressure supply tank for controlling water level by a pressure sensor and a water level, and pumping water stored as air. Fire fighting pressure tank connected to the receiving pressure tank to maintain a constant pressure, Venturi tube-shaped air suction tank for supplying air to the pressure tank, and when the water level of the pressure tank is lowered, the rotation speed control and sequentially A plurality of pumps for supplying water to the pressurized tank and at the same time supplying water directly to the consumer; Characterized in that the control panel comprising a water distribution header and an uninterruptible power supply for supplying water supplied from the pressure tank to the distribution water supply pipe.

Description

Apparatus For Suppling Water Using Air Pressure and Inverter}

The present invention relates to a water supply and fire extinguishing water supply device using an air pressure and an inverter, and more specifically, the number of pumps and the number of revolutions using a pressurized tank for pumping water at a pressure of air and a plurality of pumps sequentially operated according to the amount of water used. The present invention relates to a water supply and a fire extinguishing water supply device using an air pressure and an inverter to control the supply and supply the required amount of water effectively, as well as to supply the extinguishing water using a separate pressurized tank and a pump.

As buildings are enlarged and taller, building equipment, auxiliary equipment technologies such as water supply, power supply, and control are developing.

In particular, water supply is most affected by the height of the building, unlike feeding and control, so it is difficult to maintain even water pressure on each floor if not properly handled.

Due to such a difficult problem of water supply, technology has been steadily being made so far, and various methods have been developed and are currently utilized.

Looking more closely, the most widely known method is to use a high water tank method, which is a top-down water supply method that has a water tank on the roof of a building and supplies it to each floor by gravity, and also stops the pump by using automatic air replenishment method using atmospheric air. In this case, a pressurized tank type water supply method for supplying water with the compressed force of air in the pressurized tank and a pump direct booster method for supplying water directly by pump operation are used.

However, the above methods and the like each have problems.

In other words, the high water tank type water supply device has a problem of difficulty in construction and construction cost due to the installation of the rooftop water tank, difficulty in sanitary management, and significantly delays the construction period due to the high water tank frame construction. In addition, the middle water tank was installed and used to create the pressure in the lower part, but the lack of water pressure in the upper part and the simultaneous use of water supply equipment by the customer resulted in a problem in that the water pressure and the quantity fell.

In addition, the pressure tank type water supply method has a problem that the storage capacity of the pressurized tank is small, and if the selection of equipment in the design of the water supply load flow rate is inappropriate, it may bring an energy waste effect.

In addition, the pump direct booster method has a problem that it is difficult to supply water effectively in the place where a large amount of water such as a high-rise building is consumed due to a great change in flow rate and pressure, and the pump starts even when a small amount of water is consumed. Due to unnecessary power usage and frequent start-up of pumps, there was a problem of shortening the pump life and frequently replacing the pump.

The present invention has been made to solve this conventional problem, the purpose is to control the pump number and the number of revolutions by using a plurality of pumps that are sequentially operated according to the pressure tank and the amount of water used to pump water at the pressure of air and The present invention provides a water supply system for both water supply and fire extinguishing water to effectively supply the required amount of water supply.

In addition, another object of the present invention is to provide a water supply and fire extinguishing water supply device using the air pressure and inverter to quickly cope with the initial evolution by supplying the digestion water using a separate pressure tank and pump.

1 is a block diagram showing the main parts of the overall system according to the present invention.

2 is a block diagram showing a water distribution header of the present invention.

Figure 3 is a block diagram showing an air supply tank of the present invention.

<Description of the symbols for the main parts of the drawings>

1,2,3: water feed pump 4: auxiliary water pump

5,6: fire fighting pump 7, 10: air filter

8,11,27: solenoid valve 9,12: check valve

13, 14: air filling tank 15, 18: pressure gauge

16,19: Pressure switch 17,20: Pressure sensor

21,22,23,24,25,26: check valve

28,29,30,31,32,33: pressure reducing valve

34,35: Automatic air discharge valve 36,37: Water level

38: flow meter 39: electronic safety valve

40: water supply pressure tank 41: firefighting water supply tank

42: water pipe 43: connector

44: addressing piping 45: main water supply piping

46: auxiliary fire pipe 47: water distribution header

48: water distribution header 49: branch fire piping

50, 51: branch pipe for water supply 52, 53: air supply pipe

54: control panel 55: uninterruptible power supply

100: reservoir

The present invention for solving this object is to adjust the water level by the pressure sensor and the water level, the water supply pressure tank for pumping the water stored in the air, the fire fighting pressure tank connected to the water supply pressure tank to maintain a constant pressure And a venturi tube-shaped air suction tank for supplying air to the pressurized tank, and when the water level of the pressurized tank is lowered, the rotation speed is controlled and started sequentially to supply water to the pressurized tank and to supply water directly to the consumer. And a control panel including a plurality of pumps for supplying, a water distribution header for supplying water supplied from the pressure tank to the branch water supply pipe, and an uninterruptible power supply.

In addition, the water is supplied by the air pressure of the water supply pressure tank to the predetermined level (P2) by the pressure sensor and the water level of the water supply pressure tank, the flow rate detection of the flow meter on the main water supply pipe and the water supply pressure When the water level of the tank is lowered below the predetermined level (P2) is characterized in that to start the auxiliary pump.

In addition, even if the auxiliary pump is started for a predetermined time, if the predetermined water level (P1) does not reach, the auxiliary pump is stopped and at the same time characterized in that the main pump to be started sequentially by the rotation speed control.

In addition, it is characterized in that to select a time zone with low water consumption and attach a timer to use the water in the water supply pressure tank to a predetermined position (P3).

Hereinafter, described in detail with reference to the accompanying drawings.

Figure 1 is a block diagram showing a state connected to the main part of the system according to the invention, Figure 2 is a block diagram showing a water distribution header of the present invention, Figure 3 is a block diagram showing an air supply tank of the present invention.

As such, the present invention can be broadly divided into water supply and fire extinguishing, which are each composed of a pressurized tank, an air supply tank, a pump, and a water distribution header.

The pressurizing tanks 40 and 41 serve to replenish the water consumption of the consumer and the remaining water at the time of extinguishing, and to replenish the insufficient water. The pressurizing tank 40 and the extinguishing pressurizing tank for use in extinguishing (41) is connected, the water supply pressure tank 40 and the fire extinguishing pressure tank 41 is basically a pressure gauge (15), (18), pressure switch (16) (19) to know the pressure in the tank ), Pressure sensors (17) (20) and water level (36) (37) is provided, the electronic safety valve (e) automatically discharged to the outside when abnormal pressure to maintain the set pressure and to prevent damage and deformation of the tank ( 39) and automatic air discharge valves 34 and 35 are provided.

The air supply tanks 13 and 14 for supplying air to the pressurizing tanks 40 and 41 are formed in the shape of a venturi tube so that air and water can be supplied as quickly as possible.

In addition, the water supply pressure tank 40 is connected to the pump (1) (2) (3) (4) and the water supply pipe 42, and the fire pressure pressure tank 41 is connected to the connecting pipe 43 by these pipes On the 42 and 43, check valves 21 and 22 are provided, respectively.

In addition, air supply pipes 47 and 48 are connected to the water supply pipe 42 and the connection pipe 43, respectively, which are air filters 7 and 10, solenoid valves 8 and 11 connected thereto. The check valves 9 and 12 are connected.

The water level (36, 37) is composed of a flow switch (FLOW S / W) to detect the water level and accordingly to control the number of operation and rotation of the pump, respectively, and also pressurized tank 40, 41 by pressurization To pump water into the consumer.

The pump is composed of a plurality of main pumps (1) (2) (3), auxiliary pumps (4) and fire pumps (5) (6). will be.

That is, according to the flow rate detection of the flow meter 38 installed on the main water supply pipe 45, the number of pumps and the number of rotations of the pump is controlled, respectively. If the water consumption increases, the auxiliary pump 4 is operated, and if the auxiliary pump 4 does not meet the used capacity, the main pumps 1, 2, and 3 are started sequentially and at the same time, Accordingly, the rotation speed will be variable.

In addition, when the fire is detected by the fire detection means in the building, the fire pumps (5) and (6) are started to supply water directly to the sprinkler or indoor fire hydrant along the auxiliary fire pipe (46), thereby rapidly extinguishing the fire. To lose.

In addition, a solenoid valve 27 and a check valve 26 are provided in the auxiliary fire pipe 46.

The water distribution header includes a water distribution header 47 for water supply and a water distribution header 48 for fire fighting, and the water distribution header 47 for the water supply includes a main water supply pipe 45 and a branch water supply pipe 50 supplied to each floor of the building. It is installed between the water supplied from the pressure supply tank 40 for supplying smoothly to the user, the main water supply pipe 45 is provided with a pressure reducing valve 29 for adjusting the water supply pressure, distribution water supply pipe (50) Pressure reducing valves 32 and 33 are also formed on the 51).

In addition, the fire water distribution header 48 is connected to the fire fighting pressure tank 41 and the addressing pipe 44, the pressure reducing valve 30 and the check valve 25 is formed on the addressing pipe 44. In case of fire, the required amount of water is to be supplied before sprinkler or indoor fire extinguishing.

In addition, the water distribution headers 40 and 41 have a cylindrical structure that is two to three times larger than the pipe diameter, similar to the water supply headers found in domestic boilers, etc., and at the same time reduce the pressure of the supplied water. It not only plays a role of mitigating water hammer caused by the rapidly changing flow path, but also prevents water hammer caused by a large amount of water supplied from the pressure tank during an emergency such as a power failure, and stores a sufficient amount of reservoir. It can also perform a function.

The control of such a water supply system is made in an electrically connected control panel 54. The control panel 54 is to control and confirm the starting state of the water supply system. It is more preferable to use a P, L, C (programmable logic controller) to ensure stability at a set value.

In addition, by installing an uninterruptible power supply 55 (U, P, S) on the control panel 54 to operate a fire extinguishing system in an emergency such as a power failure, the initial extinguishing can be performed quickly, as well as the water hammer occurring in the pipe ( To reduce the occurrence of water hammer, surging (cavitation) and cavitation (cavitation).

Referring to the operation of the present invention configured as described above is as follows.

The present invention basically divides the water stored in the water reservoir 100 into water supply and fire extinguishing, and is supplied to each user, and also pressurized tanks 40, 41 and a plurality of pumps 1, 2, 3 (4) (5) (6) is used for water supply.

Looking at the process of water supply, first, the water stored in the water storage tank 100 is sucked up by the pump and introduced into the water supply pressure tank 40 through the air supply tank 13 and the water supply pipe 42 and the main water supply pipe by the pressure of the air. (45) is transferred from the water supply distribution head 47 to the branch water supply pipes (50) and (51) via the check valve (24), the pressure reducing valve (29), and the flow meter (38) to be supplied to each user. .

In the initial state of the water supply device, the water level in the water supply pressure tank 40 reaches P1, and the fire extinguishing tank 41 is formed at P4.

When the water level is lowered from the consumer and reaches the P2 point from P1, when the pressure sensor 17 detects a signal and the signal is input to the control panel 52, the auxiliary water pump 4 is started to supply the pressure tank for water supply. 40) filled with water.

Of course, the process from P1 to P2 point is the water supply is made by the pressure energy accumulated in the water supply pressure tank 40 and the stored water.

In addition, even if the auxiliary water supply pump 4 is started to supply water into the water supply water supply tank 40, when the water level is high at the consumer and the water level does not reach P1 even after the set time t seconds, the operation of the auxiliary pump 4 is stopped. At the same time, a plurality of main pumps (1) (2) (3) connected in parallel with this is started sequentially to supply water.

At this time, the operation of the pump is operated in accordance with the rotation speed control method to avoid the excessive power consumption and unnecessary pump wear, as well as to periodically operate the order to prevent excessive operation of one pump.

In addition, the starting number of pumps is controlled by the flow meter 38 on the main water supply pipe 45, and the discharge pressure of the water supply pumps 1, 2, 3 is maintained in the air filling tank 13 and the water supply pipe 42. The air is to pressurize the water supply pressure tank 40 to form up to the point P1.

In addition, when the water level of the water supply tank 40 reaches the point P1, the operation of the pumps 1, 2, 3 is stopped, and the solenoid valve 8 connected to the top of the air supplement tank 13 opens to open the air supplement tank 13. ) And the water in the water supply pipe 42 flows back into the water storage tank 100 and the pressure supply tank 40 for water supply, whereby external air flows into the pressure supply tank 40 for water supply and becomes a standby operation state.

At this time, when the inflow of air occurs and the water level drops below the set water level, the solenoid valve 8 is automatically closed by the water level 36 to block external air to constantly adjust the water level of the water supply tank 40. And automatically discharges the excess air supplied to the automatic air discharge valve 34, and when the pressure in the water supply pressure tank 40 rises to a constant pressure, the electronic safety valve 39 to prevent deformation or damage of the tank. ) Will work.

In addition, the water supply pumps 1, 2, and 3 may be started to supply water to the water distribution header 47 for supplying water through the pressure supply tank 40 for supplying water or to go directly to the water distribution header. 23 may be opened to provide the water of the required amount of water in a short time.

On the other hand, by selecting a time zone with low water consumption, such as the night time zone, and attaching a timer to use the water in the water supply pressure tank 40 to P3, the auxiliary pump with a small capacity in consideration of the large power loss (4) ) Is set in advance by the timer.

That is, in the preset time zone, even if the water level drops to the point P3, only the auxiliary pump 4 is started to fill the water into the pressure supply tank 40 for water supply.

Of course, when the water consumption is increased even in the midnight hours, it is natural that the flow meter 38 detects and stops the start of the auxiliary pump 4 and starts the main pumps 1, 2 and 3 in order. .

Fire-fighting water supplies the water before sprinkler or indoor fire extinguishing by the operation of fire sensor in the building to enable extinguishing in an instant. Basically, fire extinguishing pressure tank is operated by the constant pressure formed in water supply pressure tank 41. It is formed by P4 point, and when fire extinguishes, water level drops rapidly to P5 point to extinguish fire. When P5 point is reached, the solenoid valve 29 on the auxiliary fire pipe 46 is opened by the detection of the sensor. The fire pumps 5 and 6 are sequentially started by the rotation speed control to directly supply the required amount of water to the extinguishing water distribution header 48.

At this time, the water level of the fire extinguishing pressure tank 41 is gradually raised by the water supplied from the water supply pressure tank 40 to achieve the point P4.

In addition, the fire is extinguished, the solenoid valve 27 is closed, the operation of the pumps (5) and (6) is also stopped, and the water level of the fire fighting pressure tank (41) is gradually increased to reach the point P4 to maintain the initial state. .

On the other hand, the control panel 54 solved the problem of failing the initial extinguishing of the power failure such as fire by installing the uninterruptible power supply 55 (U, P, S) and displaying the malfunction of the equipment with a lamp to solve the trouble. It is easy to reduce the occurrence of water hammer, surging and cavitation.

As described above in detail, the water supply and the combined water supply system of the present invention effectively reduces water supply by using a pressurized tank and a plurality of pumps, thereby reducing the pressurized tank capacity and starting the pump only when necessary, thereby eliminating unnecessary pumps. It has the effect of extending the life of the pump by reducing wear.

In addition, fire water is also carried out by using a separate fire fighting pressure tank and pump, so that when the fire is detected, the fire extinguishing system is effectively operated at an early stage to quickly extinguish the fire.

Claims (4)

The water level is adjusted by the pressure sensor 17 and the water level 36, and the water supply pressure tank 40 for pumping water stored as air and the water supply pressure tank 40 are connected to maintain a constant pressure. The pressure level of the fire fighting pressure tank 41, the venturi tube-shaped air suction tanks 13 and 14 for supplying air to the pressure tanks 40 and 41, and the pressure tanks 40 and 41, When lowered, a plurality of pumps (1) (2) (3) (4) (5) which control the rotational speed and start sequentially to supply water to the pressurized tanks (40) and (41) at the same time supply water directly to the consumer. (6) and the water distribution headers (47) (48) and the uninterruptible power supply (55) for supplying the water supplied from the pressure tank (40) (41) to the branch water supply pipes (49) (50) (51). Water supply and fire water supply device using the air pressure and inverter, characterized in that consisting of a control panel (54) comprising. The method of claim 1, The pressure sensor 17 and the water level 36 of the water supply pressure tank 40 allow water to be supplied to the predetermined water level P2 by the air pressure of the water supply pressure tank 40, and on the main water supply pipe. When the flow rate detection of the flow meter 38 of 45 and the water level of the water supply pressure tank 40 falls below a predetermined level P2, the auxiliary pump 4 is started. Fire water supply. The method of claim 2, Even when the auxiliary pump 4 is started for a predetermined time, if the predetermined water level P1 is not reached, the auxiliary pump 4 is stopped and the main pumps 1, 2, 3 are controlled by the rotation speed control. Water supply and fire extinguishing water supply device using the air pressure and the inverter, characterized in that to start sequentially. The method of claim 2 or 3, A water supply and fire extinguishing water supply apparatus using an air pressure and an inverter, characterized in that to select a time zone with low water consumption and attach a timer to use the water in the water supply pressure tank 40 to a predetermined position (P3).