KR19990079686A - Non-Powered Automatic Fire Water Supply - Google Patents

Abstract

The present invention is a non-powered automatic fire extinguishing system comprising a system, such as a pressure tank water supply, a supplemental water pump system, a spray bogie system, a hydraulic pore pressure boosting system, and an electric control system. . Normally, more than 90% of the water is maintained in the air pressure tank. The air pressure in the tank allows water to be supplemented and boosted up to the fire-fighting line 24/7. A gas-locked pressure reducing valve is installed in the nitrogen tank discharge pipe to provide nitrogen. It is a high sealing device to prevent nitrogen leakage in the tank. Once the fire occurs, the water supply to the fire-fighting pipe is not dependent on power and personnel, but immediately releases the pressure reducing valve in accordance with the hydraulic principle. In addition, the present invention can prevent the leakage of high-pressure nitrogen for a long time, and also can react quickly to become a "pressure energy type high pressure fired water supply system" that is reliable in fire fighting. The small facility of the present invention can be applied as a boosting facility of an expensive firefighting reservoir, and the large facility is to be utilized for a water supply fire fighting system for about 20 minutes in a high-rise building.

Description

Non-Powered Automatic Fire Water Supply

The present invention relates to a non-powered automatic fire fighting water supply device. More specifically, it is a non-powered automatic fire fighting system, which is composed of a pressure tank water supply system, a supplemental water pump system, a spray bogie system, a hydropneumatic nitrogen boost system, and an electric control system. . Normally, more than 90% of the water is maintained in the air pressure tank. The air pressure in the tank allows water to be supplemented and boosted up to the fire-fighting line 24/7. A gas-locked pressure reducing valve is installed in the nitrogen tank discharge pipe to provide nitrogen. It is a high sealing device to prevent nitrogen leakage in the tank. Once the fire occurs, supply water from the fire-fighting pipe immediately releases the pressure reducing valve's sealing state according to the hydraulic principle, without relying on power and manpower. In addition, the present invention can prevent the leakage of high-pressure nitrogen for a long time, and also can react quickly to become a "pressure energy type high pressure fired water supply system" that is reliable in fire fighting. Small facilities can be used as boosting facilities for expensive firefighting reservoirs, and large ones are used for high-rise buildings for about 20 minutes.

Conventional barometric water supply device can be fired for a short time in the blackout situation. However, the ratio of the pressure tank volume Vｑ to the discharged fire volume Vx

m = Vｑ / Vx ≥ (Px + ∠P + 1) / αx / ∠P

Pressure in the pressure tank after discharging the volume of Px-Vx in the formula, ㎏ / ㎠

-P-Vx Pressure drop in the pressure tank required to discharge the volume water, kg / ㎠

αx-maximum gas volume factor of the pressure tank

If Px = 10㎏ / ㎠, ∠P = 1㎏ / ㎠ αx = 0.95, m≥12.63m 3. So when Vx = 0.5㎥, Vｑ≥ 6.32㎥, and when Vx = 6.0㎥, Vｑ≥ 75.8㎥.

Obviously, if the pressure tank is very large and most of it is gas and the utilization rate is very low, there is a risk of fire if the air in the tank enters the fire pipes, which may help burn.

Therefore, in the late 80s, fire-fighting water supply facilities for fire-fighting using nitrogen boosting methods appeared in China.

For example, XQG-based facilities in long-water windows. This nitrogen boosting system consists of a high pressure nitrogen tank, a gas pressure reducing valve, a solenoid valve, a piping line and a storage battery. Normally, the pressure reducing valve is in a regulated state and the nitrogen flow is suppressed using the solenoid valve. In the event of a fire, the solenoid valve is opened by the power of the accumulator and pressurizes the nitrogen to the upper part of the pressure tank, so that the water in the tank flows into the fire pipe and supplies fire.

However, this method cannot be sealed by the pressure reducing valve that regulates the outlet pressure, so that the solenoid valve at the outlet is difficult to prevent nitrogen leakage. So not only is it difficult to preserve high-pressure nitrogen in the long run, but it is also not easy to manage and maintain the battery throughout the year. Therefore, this nitrogen boosting method has rarely been successful.

SUMMARY OF THE INVENTION The present invention provides a miniaturized, non-powered automatic firefighting water supply system employing a hydro-pneumatic nitrogen boosting system (SQDZ) to solve the conventional problems, so that the tank is usually filled with water and the high pressure gas in the nitrogen tank Leakage prevention was thoroughly prevented. When water is supplied from fire pipes due to a fire, water supply by nitrogen boosting is promptly carried out according to the principle of hydraulic pore, regardless of any electric power. To achieve. The present invention as described above belongs to the "pressure energy type high pressure fire water supply system" as if it is an expensive reservoir.

1 is an overall circuit diagram of the present invention

Figure 2 is a longitudinal sectional view of the gas bottle valve of the present invention

3 is a longitudinal sectional view of the combination valve of the present invention;

Figure 4 is a longitudinal cross-sectional view of the gas-locking safety valve of the present invention

5 is an electric control circuit diagram of the present invention.

<Description of Major Symbols in Drawing>

QS: Pressure tank Po: Filling pump PBQ: Jetted bogie

SQDZ: Hydraulically operated nitrogen boost QW: Water level indicator QY: Pressure reducing valve

DY: Electric contact pressure gauge QA: Safety valve Ho, Hx, Hk, 3.5: Check valve

ZG: Step up pipe Zk: Step up control valve Zx, Zh: Gate valve

HG: Recovery tube GL: Filter YB: Acrylic pipe

N₂: Nitrogen tank QP: Gas bottle valve ZF: Combination valve

Do, D₁, D₂ D₃: Butterfly valve Da: Ventilation part

Db: Seal DF: Solenoid Valve Dc: Safety Valve

Dd: Sealing part A: Intake space B: Control space

C: Test space A₁: Exhaust part B₁: Gas lock part

C₁: Control part 2.1: Gas bottle valve body 2.2, 3.6, 4.4: Sealed packing

2.3: High pressure door 2.4: Cylinder pin 2.5: Valve stem

2.6: Lubrication parts 2.7: O-rings 2.8: Sealing parts

2.10: Valve cover 2.11: Protective cover 3.1: Combination valve body

3.2: Valve cover 3.3: Valve adjustment rod 3.4: O-ring

3.7: Bolt 3.8: Flow restriction part 4.1: Safety valve body

4.2 Seal valve seat 4.3 Bolt 4.5 Differential piston

4.6: Spring 4.7: Adjustment rod 4.8: Adjustment bolt

4.9: Valve cover 4.10: Fixing nut 4.11: Protective cover

The present invention will be described in detail by way of example.

First of all, before describing the present invention, a gas-locked pressure reducing valve (patent application number: 97-146), a hydraulically operated boost control valve (patent application number: 97-4074), a spray bogie tank (utility model registration application number: 96- 58144) and the check valve for intake and exhaust (utility model registration application number: 97-22076) are the applicants of the present invention, so the detailed configuration will not be described.

The present invention is the water supply main system of the air pressure tank (QS) and the water supplemental pump (Bo) system, the injection bogie system (PBQ), hydraulic nitrogen boosting system (SQDZ) and electric control system installed around the And the like.

The fluid flow of all installations is

The water supply main system of the air pressure tank (QS) installs an absorption port and a drain in the lower part of the air pressure tank (QS), and a water level indicator (QW) in the upper part of the air pressure tank (QS). The water level between -95% is controlled. A gas-locking pressure reducing valve (QY) is installed at the center in front of the main body of the pressure tank (QS), and an electrical contact pressure gauge (DY) is installed at the top of the pressure tank (QS) to view the upper pressure Pq of the pressure tank (QS). It detects the upper and lower pressure in the tank and sends signals (Sk, St). The upper part of the pressure tank (QS) is provided with a safety valve (QA), a check valve for inlet and exhaust (Hx), and a boosting pipe (ZG), and a butterfly valve (D₂) in the drain provided under the pressure tank (QS). Through the inlet of the hydraulic booster control valve (ZK). Finally, the drainage port of the boost control valve (ZK) is connected to the fire fighting pipe network and the recovery pipe (HG) through the gate valves (Zx) and (Zh) using the water supply pipe, respectively, to form a main air supply system.

And a water supplement pump (Bo) is installed at the bottom of the pressure tank (QS), and the suction port of the pump is connected to the inlet pipe to the bottom of the reservoir through the butterfly valve (Do), and the outlet of the pump is a filter (GL). In front of it, check valve (Ho), T-tube and butterfly valve (D₁) were connected to the suction port under the pressure tank (QS) to form a water replenishment system of the pressure tank (QS).

On the other side of the bottom of the air pressure tank (QS), a spray bogie tank (PBQ) is installed, and the water injection pipe inlet and T-tube are connected. The discharge pipe is connected to the recovery pipe via a sono-noid valve (DF) and a butterfly valve (D₃), and an acrylic pipe (YB) is connected to the bore on the upper part of the injection bogie tank (PBQ). Vertically connected to the lower part of the check valve (HK) for intake and exhaust, and the drainage port of this valve was connected to the lower part of the safety valve (QA) to construct the bogie tank (QS).

In addition, the gas-locked pressure reducing valve (QY) installed at the center in front of the pressure tank (QS) connects the high-pressure (P₁) joint at the inlet to the high-pressure gas bottle valve (QP) at the upper part of the nitrogen tank (N₂). The outlet low pressure (P₂) joint of the valve (QY) is connected to the inlet of the combination valve (ZF) by using a short pipe. The exhaust port of the combination valve (ZF) is connected to the inlet of the boosting pipe (ZG), and the combination valve (ZF), the boosting control valve (ZK), the boosting control valve (ZK), and the gas-locking pressure reducing valve are connected by using three pipes. A hydraulic porosity boosting system (SQDZ) was constructed by connecting between the gas lock space (QY), the gas lock space and the space having the locking function with the gas of the safety valve (QA). Among the five dedicated valves of the hydropneumatic nitrogen boosting system (SQDZ), the gas-locked pressure reducing valve (QY) and the boosting control valve (ZK) are described in detail in the related patent application specification previously filed by the present application. This is described below.

The high pressure gas bottle valve QP of the hydraulic pore-type nitrogen boosting system SQDZ has a diameter of φ10 to φ15 as shown in FIG. 2, and can be sealed for a long term even in an always open state. The central space of the gas bottle valve (QP) main body (2.1) is divided into the air vent part (Da), the valve part (Db), the direction guide part (Dc), and the sealing part (Dd) from bottom to top, and the inner diameter of each part Where D₁ <D₃ (≒ 2D₁) <D₄ <D₂. The outside of the vent part (Da) is to be assembled at the inlet of the nitrogen tank (N₂) by a pipe connection adopting a conical thread for the tank. The upper surface of the venting section Da extends up to the center of the valve section Db with a blade seal valve seat. The outside of the valve portion (Db) is provided with a horizontal pipe connection port, such as the diameter of the vent hole (Da) is connected to the inlet of the gas-locked pressure reducing valve (QY) by a high-pressure pipe, the upper sealing portion (Dd) ) Tighten the valve cover (2.10) using the bolt groove on the outside. When installing the valve center part in the gas bottle valve (QP) main body (2.1), first insert the pin groove in the lower part of the valve seat (2.5) into the upper hole of the high pressure valve (2.3) with the sealing packing (2.2), Cylindrical pins (2.4) were installed in the direction holes to form a rotatable door.

The outer diameter of the sliding door is then placed on top of the protruding part of the valve seat (2.5), such as the direction guide part (Dc), with the lubrication part (2.6), the rubber O-ring (2.7), the sealing part (2.8) and the valve cover nut (2.9). It is assembled and installed in the inside of three holes of the valve part Db, the direction guide part Dc, and the sealing part Dd of the main body 2.1. Finally, the valve cover (2.10) was tightened and both protrusions of the valve cover nut (2.9) pressed on the surface on the main body (2.1), covering the protective cover (2.11) to form a high pressure nitrogen gas bottle valve (QP). When the protective cover (2.11) is removed and the valve seat (2.5) is tightened in the downward direction, both projections push the high pressure door downward and close the blade seal valve seat. On the contrary, when tightening the valve seat upwards, it will affect the high pressure door (2.3) and open the valve hole, and push the lubrication part (2.6) upward while pushing out the rubber part (2.6) and the sealing part (2.8). ) By closing all gaps in the upper part of the body (2.1) to keep the gas bottle valve (QP) sealed in the long term even in the open state.

The combination valve ZF of the pore-type nitrogen boosting system SQDZ is a combination valve ZF integrated by combining two types of check valves and two gate valves as shown in FIG. The space inside the main body of the combination valve (ZF) (3.1) is divided into an intake space (A), an adjustment space (B), and a test space (C). The upper and lower end faces of the central air intake space (A) form a blade-type sealing valve seat, and an inlet pipe connection port is provided outside the center part, and the inlet pipe connection is connected to the outlet low pressure joint of the gas-locked pressure reducing valve (QY) by using a pipe. It is connected to the pipe. The left exhaust pipe connector of the lower control space (B) of the valve body (3.1) is connected to the boost pipe (ZG), and the right gas supply pipe connector is connected to the intake port of the boost control valve (ZK) by using a pipe, and the upper test space. Assemble the flow restricting part (3.8) on the left side of (C) to test the fire flow rate.

In the control space B and the test space C, which are both ends of the intake space A of the combination valve main body 3.1, the valve central portions having the same structure are respectively provided, respectively, and large threaded holes at both ends of the combination valve main body 3.1. Assemble the valve cover (3.2). Tighten the lower bolt portion of the valve adjustment rod (3.3) to the lower female threaded hole of the valve cover (3.2) and insert the O-ring (3.4) into the relatively thick circumferential portion of the upper portion of the valve adjustment rod (3.3). After sealing the upper inner hole, a check valve 3.5 fixed with a seal packing (3.6) using a bolt (3.7) was installed in the hole in the center of the circumferential part to configure two parts of the upper and lower valves of the combination valve (ZF).

And the upper and lower valve control rod (3.3) by pressing the two check doors closed and then adjust the outlet pressure P₂ of the gas-locked pressure reducing valve (QY) so there is no consumption of nitrogen. After opening the lower valve, the pressure is increased. After closing the lower valve and opening the upper valve again, the automatic control function of the gas-locked pressure reducing valve (QY) can be tested.

Gas-locking safety valve (QA) of the pore-type nitrogen boosting system (SQDZ) is a gas safety valve (QA) that can be fixed using the air pressure as shown in FIG. The central space of the safety valve (QA) body (4.1) is divided into a lower exhaust section (A₁), a central gas lock (B₁) and an upper control part (C₁). There are a plurality of exhaust holes on the side of the exhaust part A ', and the blade type sealing valve seat (4.2) is tightened tightly to the threaded hole at the bottom thereof. The lower end of the sealing valve seat (4.2) is connected to the upper part of the air pressure tank by the intake connector, and the differential piston (4.5) with the upper part being thin and the lower part having the thick upper and lower parts in the center gas lock part (B₁) Install). And the lower end surface of the differential piston (4.5) is provided with a sealing packing (4.4) fixed with a bolt (4.3) and close to the sealing valve seat (4.2) to act as a valve. On the outside of the gas lock part (B₁), there is a small pipe connector and connected to the gas lock part of the gas lock type pressure reducing valve (QY) by using a pipe to have a function of locking by the gas. Finally, a fixing nut (4.10) fixed using a spring (4.6), an adjusting rod (4.7), an adjusting bolt (4.8), a valve cover, and a split pin similar to that of the gas-locked pressure reducing valve (QY) in the upper adjusting portion (C₁). ) And protective cover (4.11). When the protective cover (4.11) is removed and the adjusting bolt (4.8) is rotated counterclockwise, the adjusting rod (4.7) moves downward along the inner hole of the adjusting portion (C₁) to compress the spring (4.6) and the differential piston Push (4.5) and close it to blade type sealing valve seat (4.2). After setting the starting pressure of the gas-locking safety valve QA, the control pressure Ps is drawn into the gas locking part B₁ so that the gas force in the same direction as the spring is generated on the upper part of the differential piston (4.5). The force completely attached the valve to the valve seat (4.2) to completely prevent leakage of the air pressure tank (QS). However, when Ps = 0 and the air pressure Pq of the air pressure tank (Qs) exceeds the set pressure of the gas-locking safety valve (QA), the gas under the differential piston (4.5) opens the valve to release the pressure from the exhaust hole.

Referring to the principle of operation of the present invention in combination with Figure 5 as follows.

The preparation process of the water supply equipment is made with the controller (PLC) in the manual state, closing the two gate valves (Zx and Zh) and the combination valve (ZF) at the outlet of the water supply pipe (GS) and closing the water supplement pump (Bo). ), The water in the reservoir is sucked into the pump through the butterfly valve (Do), and then suctioned into the pressure tank (QS) through the filter (GL) → check valve (Ho) → T tube → butterfly valve (D₁). It replenishes water and compresses the air in the air pressure tank (QS).

When the pressure in the pressure tank QS rises to the pump stop upper limit pressure Pt set in the electric contact pressure gauge DY and the level is higher than the level controlled by the water level indicator QW, the controller PLC remains in an automatic state. Connect the air supplement push button (NK) to open the solenoid valve (DF) in the controller (PLC). Then, the pressure water of the T-tube under the pressure tank QS flows into the injection bogie tank PBQ, and the pressure water is injected from the injection nozzle inside the injection bogie tank PBQ toward the expansion tube to drain the water of the pressure tank QS. Absorbs and returns to the reservoir through the expansion tube, solenoid valve (DF) and recovery tube (HG). Thus, a vacuum is generated in the upper part of the injection bogie tank PBQ so that the exhaust valve in the upper intake exhaust valve HX is automatically closed, and external air is sucked into the injection bogie tank PBQ via the intake valve and the acrylic pipe YB. When the air is filled in the injection bogie tank PBQ, the controller closes the solenoid valve DF so that the water discharged from the injection nozzle is turned 180 degrees at the entrance of the expansion tube to feed the injection bogie tank PBQ. When the internal air is compressed to approach the upper pressure (Pq ≒ Pt) of the pressure tank (QS), the exhaust valve in the intake exhaust valve (HX) opens and the compressed air in the injection bogie tank (PBQ) The operation stops when the water flows into the pressure tank QS through the intake exhaust valve HX and the water level in the acrylic pipe YB is equal to that of the pressure tank QS. At this time, the controller PLC again opens the solenoid valve DF, performs the above described intake process, and closes the solenoid valve DF again to perform the compression viewing process in the injection viewing tank PBQ. With this circulation, the pressure tank (QS) level drops to the control level of the level indicator (QW) and stops replenishment of air and water when passing through the level indicator (QW) contact point.

During the air refilling process of the above-mentioned air pressure tank QS, first open the manual gate valve SJ on the boost control valve ZK, and when the gas locking pressure in the valve reaches Ps = 0, open the gas bottle valve QP again to Slowly adjust the outlet pressure P₂ of the lock-type pressure reducing valve (QY) to stop the adjustment when the pressure rises to the boosting fire pressure Px, and then close the manual gate valve (SJ) on the boost control valve (ZK) to return the gas locking pressure to Ps = Pt. Close the gas shut-off pressure reducing valve (QY) and safety valve (QA) to lock it up.

Continuous water replenishment boosting process of the fire pipe network stops replenishing air and when the pump stops operating, first open the gate valve (Zx) to supply water to the fire pipe network, and the water in the air pressure tank (QS) When water is supplied from the gate valve (ZX) to the fire pipe through the butterfly valve (D2) and the boost control valve (ZK), the pressure Pq in the air pressure tank (QS) is lowered along the water level to lower the pressure of the electrical contact pressure gauge (DY). When descending to Pk, the controller PLC connects the magnetic contactor CJo to start the motor Mo and supply water to the pressure tank QS. At the same time, open the solenoid valve (DF) and carry out the air refill process described earlier. When the pressure of the pressure tank QS rises again to the upper limit pressure Pt of the electric contact pressure gauge DY, the controller PLC stops the pump operation after about 10 minutes.

After supplying water to the fire pipe network to adjust the required pressure, stop the pump operation and open the lower valve of the combination valve (ZF). The outlet pressure of the gas-locked pressure reducing valve (QY) drops to P₂ = Pt. From this point on, all installations enter fire. In this case, if the fire pipe is leaked, the above-mentioned water supply boosting process is repeated to maintain the fire pipe pressure between Pk and Pt for a long time. Sensitive flow rate Qm that the pressure control valve (ZK) cannot detect the leakage on the fire pipe even if the pressure in the pressure tank (QS) is reduced or the pump does not operate due to power failure, so that the pressure in the pressure tank (QS) becomes Pq = 0. If it is less than 0.5 liters per second, the gas locking pressure Ps = Pt of the boost control valve (ZK) does not change, so the gas locking pressure reducing valve (QY) is not affected. Can be locked.

To check the gas control boosting function of the pore-type nitrogen boosting system (SQDZ), first close the lower valve of the combination valve (ZF), then open the manual gate valve (SJ) on the boost control valve (ZK) to release the pressure In addition, after setting the chain pressure to Ps = 0, the gas-locked pressure reducing valve (QY) is released and the outlet low pressure (P₂) of the valve is increased to the initial set pressure so that the porosity nitrogen boosting system (P₂ = Px) Normalize SQDZ). When the manual gate valve SJ is closed and Ps = Pt, the lower valve of the combination valve ZF is opened again and restored. This inspection process uses very little nitrogen and does not require replacement of the nitrogen tank even after several inspections.

To replace the boosting process of the equipment at decades intervals, when closing the gate valve (Zx) on the water supply line (Gs) and then opening the recovery gate valve (Zh), the water in the pressure tank (QS) is drained, the butterfly valve (D2). ), The booster control valve (ZK) and the recovery gate valve (Zh) through a large amount of flow back to the reservoir. At this time, the boost control valve (ZK) quickly opens the exhaust door in the valve to release the pressure from the upper exhaust hole to Ps = 0 to release the sealing state of the gas-locked pressure reducing valve (QY). Therefore, the high pressure nitrogen in the nitrogen tank (N₂) is reduced from the gas-locked pressure reducing valve (QY) to P₂ = Px pressure through the gas bottle valve (QP), and then the pressure tank through the combination valve (ZF) and the boosting pipe (ZG). The upper part of the QS is pressed and the water in the pressure tank QS is forced to return the necessary fire flow rate Qx to the reservoir, and stops when nitrogen in the nitrogen tank N 2 is consumed. Then replace with a new high pressure nitrogen tank (N2).

Nitrogen boosting process Once the fire occurs, the sprinkler cools or opens the fire hydrant, so that the boosting water supply process of the grounded nitrogen boosting system (SQDZ) is performed when the discharge flow rate of the fire piping is higher than the sensitive flow rate QM of the boosting control valve (ZK). Same as the water supply process described earlier. The difference is that the pressure water is supplied to the fire pipe through the gate valve Zx which is always open. In addition, if the main fire pump (ie, the device of the present invention) cannot be operated immediately before the water in the pressure tank (QS) is completely drained, the nitrogen in the pressure tank (QS) is supplied to the fire pipe to spray the water in the pipe so that the speed of sound Sprays at the discharge port and continuously causes spray fire fighting. On the contrary, if the fire pump can be started immediately, the pump pressure quickly closes the exhaust space above the boost control valve (ZK), and the chain pressure becomes Ps = Px. Then, the gas-locking pressure reducing valve (Y) is fixed again to stop the nitrogen boosting and feeding process and enter the fire-fighting state of the fire pump.

The present invention has the effect of having the following technical features as a whole.

First, the volume of fire water in the pressure tank (QS) is 95% in the sprinkler fire fighting system, the fire hydrant system is 90% or more, and the size of the fire fighting tank (QS) is fully utilized to realize the miniaturization. In addition, since the upper air volume was very small, the purity of nitrogen in the tank was almost unchanged after draining, so that it did not cause combustion, and continuously fired a high-purity nitrogen spray fire-extinguishing action to increase the fire fighting success rate of the initial fire.

Secondly, the bogie through the high precision intake exhaust valve (Hx) at the top of the pneumatic tank (QS) in the injection bogie tank (PBQ) is not limited to the water level in the reservoir and the pressure difference between the pneumatic tank (QS) and the bogie pump. Is not restricted. In addition, the air-locking safety valve (QA) is adopted to prevent gas leakage at all, increasing the volumetric efficiency of the viewing process to more than 95%. In addition, it is possible to observe the direct view through the acrylic pipe and the height level of the pressure tank (QS), so that there is no need to attach a separate dedicated level indicator.

Fourth, the gas bottle valve (QP) with a diameter of φ10 is adopted to replace the valves for steel vessels currently used in general, and one nitrogen bottle can be used to replace five gas bottles. Not only did it reduce the number of nitrogen bottles by meeting the 10L / SDLS requirement, but more importantly, the high sealability of the gas bottle valve (QP), which is always open, and the gas-locked pressure relief valve (QY), which ensures a tight seal, Nitrogen is protected by high sealing in the valve to prevent corrosion and aging, and it can protect high pressure nitrogen for many years as well as for decades.

Fourth, install the control valve (ZF) at the outlet of the gas-locked pressure reducing valve (QY) and open and close the lower check door regularly to check the set pressure (P₂ = Px) of the gas-locked pressure-reducing valve (QY). . This test method consumes almost no nitrogen and can be used for many years with only one nitrogen bottle.

Fifth, even if the pressure in the pressure tank (QS) changes or if Pq = 0 due to a power outage for several weeks, if the leakage flow rate of the fire fighting pipe network does not exceed the sensitive flow rate Qm of the boost control valve (ZK), the boost control valve (ZK) ) Can maintain the chain pressure Ps = Pt for several months to completely prevent malfunction of the gas-locked pressure reducing valve (QY). However, once the water capacity of the fire pipe network is Qx> Qm, it quickly exhausts the chain pressure (Ps = 0) of the boosting control valve (ZK) even when there is no power and no manpower. It can increase the reliability to make sure the fire is extinguished. As described above, the present invention is a "pressure-energy high-pressure fire-fighting water supply facility" that can actually preserve high-pressure nitrogen in the long term, and have a quick reaction in a fire and have reliability in water supply fire fighting.

The present invention is not only suitable for the firefighting equipment of an expensive fire reservoir tank, but also can satisfy the initial fire extinguishing for 30 seconds to 1 minute of the initial fire time required for the operation time of the emergency generator or the rated output of the main pump. Increasing the QS volume to increase the number of N2 tanks, the firefighting water supply is possible even during a 20 minute power outage, which prevents firefighting under powerlessness, which was a problem in high-rise buildings. I am sure that it will become an indispensable facility for all buildings as a technology that can completely solve the problems that the firefighting function failed to perform due to the lack of water pressure during the fire by high water tank.

Application example: BYG- (XZD) -10x1.2 fire fighting pipe network booster

1. The design flow rate is shown in FIG.

2. Design Factor

1) Pressure tank volume: Vq = 750L, low volume: Vs = 650L, maximum pressure: Pqmax = 120kg / cm ²

2) Water refill pump specification: QDL4-8 × 10, maximum lift: Hmax = 95m, flow rate: Qb ≥ 0.75L / S

3) Injection Viewing System Specification: PBQ-10, Effective Viewing Volume: Vb = 11L, Breathing Valve: HX-15

4) Valve Types of Hydraulic Nitrogen Boosting (SQDZ-I Type) System

Angle valve: QP150-10 (φ10) Pressure reducing valve: QY150-10 / 20 (φ10 / φ20)

Combination valve: ZF-20 (φ20), Step-up control valve: Zk-65 (φ65), Safety valve: QA-20 (φ20)

5) Fire flow rate: Qx = 10 ~ 15L / S

6) 1st step-up drainage time T = 60 ~ 45S

7) Maximum boost pressure P₂max = 120kg / ㎠

8) Length X width X height 1200 X 1200 X 2250mm

3. Sealing test condition of 3-month hydropneumatic nitrogen boost (SQDZ) system

1) High pressure P₁ = 126kg / ㎠ ΔP₁ = 0kg / ㎠

2) Low pressure P₂ = 10kg / ㎠ ΔP₂ = 0kg / ㎠

3) Chain pressure Ps = 7kg / ㎠ ΔPs = -0.2kg / ㎠

4. Test result of pressure boosting factor (ΔVx = 620L, T = 55S, Qx = 11.27L / S)

P₁ (kg / ㎠) P₂ (kg / ㎠) Ps (kg / ㎠) Pq (kg / ㎠) Remarks

130 11.5 0.00 9 Adjust the QY valve.

130 11.2 9 9.9 Secure the QY valve.

130 11.2 0.00 9.2 Release the QY valve.

117 10.9 0.00 9.5 Pressure boost to drain.

100 10.9 0.00 9.7 Boost and drain.

80 10.9 0.00 9.9 Boost to drain.

62 10.9 0.00 9.9 Boost to drain.

40 10.9 0.00 9.6 Pressure boost to drain.

30 10.3 9 8.9 Secure the QY valve.

Claims (4)

It consists of water supply main system of air pressure tank (QS), water replenishment pump (Po) system, spray bogie (PBQ) system, hydraulic nitrogen boosting system (SQDZ) and electric control system (PLC) A water inlet and a drain are installed at the bottom of the tank (QS), and a water level indicator (QW) is installed at the top of the tank to control the total volume level. QY) is installed, and an electrical contact pressure gauge (DY) is installed on the top of the pressure tank (QS) to directly see the upper pressure Pq of the pressure tank (QS), and to send an upper and lower electric signal of the pressure. ) In addition to the water level indicator, a gas-locking safety valve (QA), an intake and exhaust check valve (HX), and a boosting pipe (ZG), etc. are installed, and the drain port under the pressure tank (QS) is a butterfly valve (D₂). Hydraulically boosted control valve (ZK) It is connected to the inlet and the pipe, and the outlet of this valve is connected to the firefighter and the recovery pipe (HG) through the gate valve (Zx) and (Zh) using the water supply pipe (GS) to form a main air pressure supply system. (QS) Install a water supplement pump (Bо) on one side of the bottom of the pump, and the suction port of this pump is connected to the water inlet pipe through the butterfly valve (Do) to the bottom of the reservoir, and a filter (GL) is installed at the outlet of the pump. In front of it, a check valve (Ho), a T-pipe and a butterfly valve (D₁) are connected to the suction port under the pressure tank (QS) to form a water replenishment system for the pressure tank (QS), and the bottom of the pressure tank (QS) PBQ is installed on the other side of the water pipe to connect the water injection pipe inlet to the T-shaped pipe, and the outlet pipe is connected to the return pipe via the solenoid valve (DF) and the butterfly valve (Dc). The bore at the top of the spray bogie tank (PBQ) The reel pipe (YB) is connected vertically with the lower part of the check valve (HK) for intake and exhaust, and the drain port of this valve is connected with the lower part of the safety valve (QA) to form the bogie tank (QS) bogie system. The gas-locked pressure reducing valve (QY) installed in the center in front of the pressure tank (QS) connects the high-pressure (P₁) joint at the inlet to the high-pressure gas bottle valve (QP) at the upper part of the nitrogen tank (N₂). (QY) outlet low pressure (P₂) joint pipe is connected to the inlet port of the combination valve (ZF) by using a short pipe, and the exhaust port of the combination valve (ZF) is connected to the inlet of the boost pipe (ZG) and three pipes are connected. To lock the gas lock space, gas lock space and safety valve (QA) of the combination valve (ZF), boost control valve (ZK), boost control valve (Zk) and gas lock-type pressure reducing valve (QY). Non-powered automatic firefighting class consisting of hydraulically operated nitrogen boosting system (SQDZ) by connecting each space Hand The high pressure gas bottle valve (QP) according to claim 1 is provided at the top of the nitrogen tank (N2), which can be sealed for a long time, and the gas bottle valve (QP) moves the space of the main body (2.1) from the bottom upward. It is divided into vent part (Da), valve part (Db), guide part (Dc) and sealing part (Dd), and the outside of the vent part (Da) is a conical threaded pipe connection for the tank. It is connected to the inlet, and the label surface of the air vent part Da extends up to the center of the valve part Db with a blade type valve seat, and the outside of the valve part Db has the same inner diameter as the air vent part Da. Install the joint pipe and connect it to the inlet of the pressure reducing valve through the high pressure pipe, and install the valve cover (2.10) by screwing the outside of the upper sealing part (Dd) of the main body (2.1) of the gas bottle valve (QP), When the valve center part is installed in the main body 2.1 of the gas bottle valve QP, the sealing packing (2.2) is Insert the pin groove of the lower part of the valve seat (2.5) into the upper hole of the high-pressure door (2.3) with the bow and insert the circumferential pin (2.4) in the three horizontal holes in the center of the sliding door to form a rotating door. The valve part, the guide part and the sealing part 3 are assembled by assembling a lubrication part (2.6), a rubber O-ring (2.7), a sealing part (2.8) and a valve stem nut (2.9) on the upper part of the central protrusion of the same valve seat (2.5). Non-automatic firefighting water supply with a high-pressure bottle valve (QP) formed by installing a high pressure bottle valve (QP) by pressing the surface of the main body (2.1) with two protrusions of the valve cover nut (2.9) and installing the valve cover (2.10) inside the two holes. Device 2. The combination valve (ZF) having two gate valves and a gate valve function is provided at the discharge port of the gas-locked pressure reducing valve (QY), and the combination valve (ZF) has an intake space inside the main body (3.1). It is divided into (A), control space (B) and test space (C), and the upper and lower cross-sections of the central intake space (A) become the blade-type sealing valve seats, and the intake pipe connection port is installed on the right side of the intake space (A). It is connected to the discharge port of the lock-type pressure reducing valve (QY), the gas lock connector on the left side of the lower control space (B) of the main body (3.1) is connected to the boosting pipe (ZG), and the gas supply connector installed on the right side is Connected to the intake port of the boost control valve (ZK), the left side of the upper test space (C) tightly restricts the flow restricting part (3.8) to test the fire flow rate, and both ends of the intake space (A) of the combination valve (ZF). In the valve control space (B) and the test space (C), the same central part of the valve is installed. Assemble the valve cover (3.2) in each of the large threaded holes at both ends of the main body (3.1), insert the lower bolt portion of the valve control rod (3.3) into the lower female threaded hole, and the thick circumference at the top of the valve control rod (3.3). O-ring (3.4) is installed in the part to seal the leakage from the upper part of the valve cover (3.2), and the sealing packing (3.6) is fixed to the hole in the center of the circumferential part of the valve adjusting rod (3.3) by using the bolt (3.7). Non-powered automatic firefighting water supply device with fixed check valve (3.5) installed to fix the upper and lower valve parts of the combination valve (ZF) The central space of the main body (4.1) of the safety valve (QA) according to claim 1, wherein the safety valve (QA) main body (4.1) is provided by installing a safety valve (QA) which can be fixed at the same time as the gas-locking pressure reducing valve (QY) at the top of the pressure tank (QS). Is divided into lower exhaust part (A₁), central gas lock part (B₁), and upper control part (C₁), and there are several exhaust holes on the side of the exhaust part (A₁), and a blade-type sealing valve in the threaded hole at the bottom thereof. Tighten the seat (4.2) tightly, and the lower end of the seal valve seat (4.2) is connected to the upper part of the pressure tank (QS) by the intake connector, the upper end is thinner, the lower part is thick upper and lower in the central gas lock portion (B 내에) O-ring-mounted differential pistons (4.5) are installed on the two parts, and the sealing pistons (4.4) fixed by bolts (4.3) are installed on the lower surface of the differential pistons (4.5) to be in close contact with the valve seat to act as a valve. , Small pipe connection on the outside of gas lock It has a sphere and is connected to the gas lock part (B₁) of the gas lock type pressure reducing valve (QY) by using a pipe so that it can be locked by the gas, and the gas lock type pressure reducing valve (QY) of the upper control part (C₁) Non-powered automatic firefighting water by installing a spring (4.6), adjusting rod (4.7), adjusting bolt (4.8), valve cover (4.9), retaining nut (4.10) and protective cover (4.11) secured by a split pin. Device.