KR102535509B1 - A water pipe system that can reliably provide water with a constant pressure to a building - Google Patents

Abstract

Disclosed is a water piping system capable of providing water at a constant level of water pressure to a water supply point of a building regardless of a location where the water supply point is installed in a building. To this end, a water supply pipe line connected to the water tank and providing a movement path for moving water discharged from the water tank to a water supply point of a building, a pump unit including one or more booster pumps installed in the water supply pipe line, and the water supply point and the pump unit It is connected to the water supply line between the water supply line to adjust the water pressure in the water supply line, and a gas input space and a water bag containing water are provided inside so that the water and the compressed gas do not come into contact, and an inlet for the compressed gas introduced into the gas input space A closed expansion tank equipped with a charging valve provided, and a compressor connected to the charging valve with a compressed gas moving pipe to supply compressed gas to the closed expansion tank so that the internal pressure of the gas input space is maintained at a preset reference pressure. It provides a water piping system that According to the present invention, even if the compressed gas contained in the closed expansion tank leaks to the outside as the service period of the closed expansion tank installed to resolve the water gap in the water supply line passes, the closed expansion tank is transmitted through a compressor connected to the closed expansion tank. Since the internal pressure of the airtight expansion tank can be readjusted, it is possible to prevent the water bag from being damaged while expanding as the internal pressure of the gas input space decreases in the closed expansion tank.

Description

A water piping system that can stably supply water with a constant water pressure to a building

The present invention relates to a water piping system capable of stably supplying water at a constant water pressure to a building, and more particularly, to a water supply system capable of supplying water at a constant water pressure to a water supply point of a building regardless of the location where the water supply point is installed in the building. It is about a water piping system that can be.

In the fluid transfer piping system, each pressure tank is installed to prevent water shock caused by a sudden change in flow rate/velocity in the case of sudden pump stop or sudden closing of a valve, or damage to the piping system due to expansion/contraction of piping water in the circulation piping system. An included water shock protection system or pressure maintenance system (or expansion tank) is provided.

Incompressible fluid and compressible gas coexist inside the pressure tank, and when expansion/contraction or water shock occurs in the piping system, the compressible gas is used to discharge the incompressible fluid inside the pressure tank to the piping system or pressurize the incompressible fluid in the piping system. By flowing into the tank, it relieves the high pressure generated in the piping system and prevents low or negative pressure.

The capacity of the pressure tank is determined through the examination of the pipeline and flow analysis, etc., and the amount of compressible gas required inside the pressure tank is also determined, but this compressible gas is not permanent, but some is consumed through leakage generated at the junction, Some are consumed by dissolving in the incompressible fluid. In addition, the volume of the compressible gas changes according to the pressure of the incompressible fluid in the piping system, which changes the level of the incompressible fluid inside the pressure tank.

Fluctuations in the water level in the pressure tank mean changes in the standard pressure of the entire piping system. When the pressure rises, equipment or piping in the piping system can be damaged. Upon recombination, the shockwave may damage equipment or piping. Therefore, in order to stably maintain the piping system, the pressure inside the pressure tank and the water level of the incompressible fluid must be controlled to always be maintained within an appropriate range.

The level control of the pressure tank is performed by receiving or exhausting compressed air or a compressible gas such as nitrogen in the pressure tank. That is, as shown in FIG. 1, a level transmitter LT or a level switch is installed in the pressure tank 10 connected to the piping system, and the water level of the pressure tank 10 is measured in real time by the level transmitter LT or the level switch. is detected When the water level in the pressure tank 10 rises, the control unit 30 opens the receiving valve S1 to receive the compressible gas from the gas supply device 20 such as an air compressor or nitrogen generator into the pressure tank 10, thereby preventing incompressibility. The level of the incompressible fluid inside the pressure tank 10 is adjusted by lowering the level of the fluid to an appropriate level, and when the level drops, the exhaust valve S2 is opened to exhaust gas from the pressure tank 10 to the outside to raise the level. is maintained within a preset appropriate range.

As described above, in the conventional water piping system, an air compressor is used to accommodate compressed air in a pressure tank. In particular, an oil-free air compressor is used in a water pipe system for water supply, and the oil-free air compressor has a characteristic of not lubricating a friction part and has a pressurized pressure of 10 Bar or less.

However, when water is transported over a long distance, such as in the Middle East, or when water is transported at once to a place with a high drop, the pressure of the pump is operated with a high-pressure system such as 40Bar, 60Bar, and 80Bar, so It is operated with high pressure, and the air compressor or gas receiving device accommodated here must also be operated with high pressure. In particular, an oil-free compressor must be used for sanitary reasons in the piping system that transports drinking water, such as waterworks. However, since such a high-pressure oil-free air compressor is not produced, an oil injection compressor (such as oil on the friction part of the compressor) is required to meet the corresponding capacity. A compressor with liquid lubrication) is used and a method of removing oil from the compressed gas is used, but since the oil component is not completely removed, it is impossible to ensure sanitation by not including oil components in the high-pressure liquid transfer piping system. exist.

In addition, since high-pressure oil-free air compressors are not being produced, a number of 10 Bar capacity air compressors must be connected and used to match the capacity. There is a problem that the cost is greatly increased and the energy consumption is excessive.

Republic of Korea Patent Registration No. 10-1673495 (2016.11.07 announcement) Republic of Korea Patent Publication No. 10-2020-0111983 (published on October 5, 2020) Republic of Korea Patent Registration No. 10-0300305 (Announced on October 27, 2001) Republic of Korea Patent Registration No. 10-1392847 (Announced on May 27, 2014)

Accordingly, an object of the present invention is to provide a water piping system capable of stably maintaining the internal pressure of a sealed expansion tank so as to continuously provide sufficient water pressure to the water supply point regardless of the location where the water supply point of the building is installed and the amount of water used. there is.

In order to achieve the above object of the present invention, in one embodiment of the present invention, a water supply pipe that is connected to the water tank and provides a movement path for moving the water discharged from the water tank to the water supply point of the building, and one installed in the water supply pipe The pump unit including the above booster pump is connected to the water supply pipe line between the water supply point and the pump unit to adjust the water pressure in the water supply pipe line, and to prevent contact between the water and the compressed gas, the gas input space and the water bag containing the water are contained therein. A sealed expansion tank equipped with a charging valve providing an inlet for compressed gas introduced into the gas input space, and a compressed gas transfer pipe connected to the charging valve so that the internal pressure of the gas input space is a preset reference pressure. It provides a water piping system including a compressor for supplying compressed gas to the closed expansion tank so as to be maintained.

According to the present invention, even if the compressed gas contained in the closed expansion tank leaks to the outside as the service period of the closed expansion tank installed to resolve the water gap in the water supply line passes, the closed expansion tank is transmitted through a compressor connected to the closed expansion tank. Since the internal pressure of the airtight expansion tank can be readjusted, it is possible to prevent the water bag from being damaged while expanding as the internal pressure of the gas input space decreases in the closed expansion tank.

In addition, the present invention can continuously provide a certain level of water pressure even when water usage increases at a water supply point in a building, and can provide sufficient water pressure regardless of the location of the building water supply point.

In addition, since the present invention can provide water at an appropriate water pressure for each location of a building using a single compressor, facility costs can be reduced compared to the case of using multiple compressors, and efficiency of the installation space can be promoted.

1 is a configuration diagram showing a conventional water piping system.
2 is a configuration diagram for explaining a first embodiment of a water piping system according to the present invention.
3 is a configuration diagram for explaining a second embodiment of a water piping system according to the present invention.
4 is a configuration diagram for explaining a third embodiment of a water piping system according to the present invention.
5 is a perspective view showing a filling valve installed in a compression tank according to the present invention.
6 is a block diagram for explaining the electrical connection relationship of the water piping system according to the present invention.

Hereinafter, a water piping system (hereinafter, abbreviated as 'water piping system') capable of providing water at a suitable water pressure for each location of a building according to preferred embodiments of the present invention with reference to the accompanying drawings will be described in detail.

2 is a configuration diagram for explaining a first embodiment of a water piping system according to the present invention.

Referring to FIG. 2, the water piping system according to the present invention includes a water supply line 100 providing a water movement path between a water tank (W) and a building water supply point, and moving water in the water tank (W) to a building water supply point. It includes a pump unit 200, a closed expansion tank 300 for adjusting water pressure in the water supply line 100, and a compressor 400 for providing compressed gas to the closed expansion tank 300.

Hereinafter, each component will be described in more detail with reference to the drawings.

Referring to FIG. 2 , the water piping system according to the present invention includes a water supply line 100 .

The water supply line 100 is connected to the water tank W, and provides a function of moving the water discharged from the water tank W to a water supply point of a building. One end of the water supply line 100 is connected to the water storage tank W, and the other end opposite to the one end is connected to a faucet or water meter of a building serving as a water supply point through a branch pipe.

3 is a configuration diagram for explaining a second embodiment of a water piping system according to the present invention.

The water supply pipe line 100 according to the present invention consists of a single water supply pipe line 100 installed in a building such as an apartment where the water charge is the same, or a high-rise pipe line 110 installed in a building such as an officetel where the water charge is divided into commercial and residential uses. It may be configured to include a low-rise conduit 120. At this time, the high-rise conduit 110 may be used for residential use, and the low-rise conduit 120 may be used for commercial use.

The high-rise conduit 110 is connected to the water storage tank (W), and provides a function of moving the water discharged from the water storage tank (W) to the high-rise part of the building. In addition, one end of the high-rise conduit 110 is connected to the water storage tank W, and the other end opposite to the one end is connected to a high-rise faucet or water meter as a water supply point through a branch pipe.

The high-rise conduit 110 may be responsible for 40 to 60% of the total number of floors of the building, but is not limited thereto. For example, when the building has 30 floors, the high-rise conduit 110 may be installed in the building to cover the 13th to 19th floors to the 30th floor.

In other words, in the case of a 30-story building, the high-rise conduit 110 provides a passage through which water to be used for each floor is moved from the 13th to the 19th to the 30th floors.

On the other hand, the low-rise conduit 120 is connected to the water storage tank (W), and provides a movement path for moving the water discharged from the water storage tank (W) to the lower part of the building. One end of the low-floor conduit 120 is connected to the water storage tank (W), and the other end opposite to the one end is connected to a low-floor faucet or water meter serving as a water supply point.

In addition, the low-rise conduit 120 may be responsible for 40 to 60% of the total number of floors of the building, but is not limited thereto. For example, when the building has 30 floors, the low-rise conduit 120 may be installed in the building to cover floors from the 1st floor to the 12th to 18th floors.

In other words, in the case of a 30-story building, the low-rise conduit 120 provides a passage through which water to be used for each floor is moved from the first floor to the 12th to 18th floors.

4 is a configuration diagram for explaining a third embodiment of a water piping system according to the present invention. Referring to FIG. 4 , the water piping system according to the present invention may further include a heating duct.

The heating pipe is connected to a heating tank (T) in which hot water heated for heating is stored, and provides a function of circulating the water discharged from the heating tank (T) in the building.

One end of this heating tube is connected to the heating tank (T), and the other end opposite to the one end is connected to a boiler for reheating the cooled hot water after circulating through the building. At this time, the boiler provides the heated hot water to the heating tank (T).

The heating pipe according to the present invention may include a low-rise heating pipe 152, a middle-story heating pipe 154, and a high-rise heating pipe 156 installed in a building using central heating.

The lower floor heating conduit 152 is connected to the heating tank T, and provides a function of moving the heating water discharged from the heating tank T to the lower floors of the building.

The middle floor heating conduit 154 is connected to the heating tank T, and provides a function of moving the heating water discharged from the heating tank T to the middle floor of the building.

The high-rise heating conduit 156 is connected to the heating tank T, and provides a function of moving the heating water discharged from the heating tank T to the upper floors of the building.

These low-rise heating ducts 152, middle-tier heating ducts 154, and high-rise heating ducts 156 have one end connected to the heating tank T, and the other end opposite to the one end connected to the boiler.

The low-floor heating conduits 152 may cover the lower floors of the building, which account for about 30 to 37% of the entire building, but are not limited thereto. In addition, the middle floor heating conduit 154 may be responsible for the middle floor of the building, which is about 30 to 37% of the entire building, but is not limited thereto. In addition, the high-rise heating pipe 156 may cover the upper floors of the building, which is about 30 to 37% of the entire building, but is not limited thereto. At this time, the middle floor of the building is located on top of the lower floor of the building, and the upper floor of the building is located on top of the middle floor of the building.

2 to 4, the water piping system according to the present invention includes a pump unit 200.

The pump unit 200 includes one or more booster pumps installed in the water supply line 100, and provides a function of moving water discharged from the water tank W to a water supply point of a building.

This pump unit 200 may be configured to include two or more depending on the size of the building. For example, the pump unit 200 may include a first pump unit 210 and a second pump unit 220 as shown in FIG. 3, and the first pump unit 210 and the second pump unit 220 as shown in FIG. The second pump unit 220, the third pump unit 230, the fourth pump unit 240, and the fifth pump unit 250 may be included.

In addition, the number of booster pumps constituting the individual pump units 210 , 220 , 230 , 240 , and 250 may be changed according to the number of floors of the building, and thus is not particularly limited. For example, an individual pump unit may consist of 1 to 5 booster pumps.

The first pump unit 210 includes one or more booster pumps 212, 214, and 216 installed in the high-rise conduit 110, and moves the water discharged from the water tank W to a water supply point in the upper part of the building. Provides a function. The number of booster pumps included in the first pump unit 210 may be changed according to the number of floors of a building, and thus is not particularly limited. For example, when a building has 30 floors, the first pump unit 210 may include 3 to 5 booster pumps. In addition, the booster pump constituting the first pump unit 210 may pressurize the water to a pressure of about 12 bar or the like in order to transfer the water stored in the water storage tank W to a long distance along the high-rise conduit 110 .

The second pump unit 220 includes one or more booster pumps 222 and 224 installed in the lower floor conduit 120, and moves the water discharged from the water tank W to a water supply point on the lower floor of the building. Provides a function. The number of booster pumps included in the second pump unit 220 may be changed according to the number of floors of a building, and thus is not particularly limited. For example, when a building has 30 floors, the second pump unit 220 may include 2 to 3 booster pumps. In addition, the booster pump constituting the second pump unit 220 may pressurize the water at a pressure of about 8 bar or the like in order to transport the water stored in the water storage tank W to a long distance along the low-rise conduit 120 .

The third pump unit 230 includes one or more booster pumps installed in the low-floor heating duct 152, and provides a function of moving water discharged from the heating tank T to the lower floors of the building. The number of booster pumps included in the third pump unit 230 may be changed according to the number of floors of a building, and thus is not particularly limited. In addition, the booster pump constituting the third pump unit 230 may pressurize the water to a pressure of about 6 bar or the like in order to transfer the water stored in the heating tank T to a long distance along the low-floor heating pipe 152.

The fourth pump unit 240 includes one or more booster pumps installed in the middle floor heating duct 154, and provides a function of moving water discharged from the heating tank T to the middle floor of the building. The number of booster pumps included in the fourth pump unit 240 may be changed according to the number of floors of a building, and thus is not particularly limited. In addition, the booster pump constituting the fourth pump unit 240 may pressurize the water to a pressure of about 8 bar or the like in order to transfer the water stored in the heating tank T to a long distance along the intermediate heating pipe 154.

The fifth pump unit 250 includes one or more booster pumps installed in the high-rise heating duct 156, and provides a function of moving water discharged from the heating tank T to a high-rise building. The number of booster pumps included in the fifth pump unit 250 may be changed according to the number of floors of a building, and thus is not particularly limited. In addition, the booster pump constituting the fifth pump unit 250 may pressurize the water at a pressure of about 12 bar to transfer the water stored in the heating tank T to a long distance along the high-rise heating pipe 156.

2 to 4, the water piping system according to the present invention includes a closed expansion tank 300.

The sealed expansion tank 300 is connected to the water supply line 100 between the water supply point and the pump unit 200 to adjust the water pressure in the water supply line 100, and uses compressed gas provided from the outside to supply the water line 100. ) provides pressure so that the water moving along it can maintain a certain level of water pressure.

The sealed expansion tank 300 has a gas input space and a water bag 320 containing water therein so that water does not come into contact with the compressed gas, and a filling valve providing an inlet for the compressed gas injected into the gas input space. 310 is provided.

In addition, the sealed expansion tank 300 maintains the internal pressure at a constant level through the compressed gas provided from the compressor 400, so that water at a constant water pressure is supplied to the water supply point regardless of the location of the water supply point connected to the water supply line 100. It provides a function that allows

Referring to FIG. 3 , the closed expansion tank 300 according to the present invention may include a first closed expansion tank 301 and a second closed expansion tank 302 .

The first sealed expansion tank 301 is connected to the high-rise pipe 110 to adjust the water pressure in the high-rise pipe 110, and the water moving along the high-rise pipe 110 is constant using compressed gas provided from the outside. It provides pressure to maintain the level of water pressure.

The second sealed expansion tank 302 is connected to the lower pipe 120 to adjust the water pressure in the lower pipe 120, and the water moving along the lower pipe 120 is constant using compressed gas provided from the outside. It provides pressure to maintain the level of water pressure.

Referring to FIG. 4 , the closed expansion tank 300 according to the present invention may further include a third closed expansion tank 303, a fourth closed expansion tank 304, and a fifth closed expansion tank 305. there is.

The third sealed expansion tank 303 is connected to the low-floor heating duct 152 to adjust the water pressure in the low-floor heating duct 152, and moves along the low-floor heating duct 152 using compressed gas provided from the outside. It provides pressure so that the water can maintain a certain level of water pressure.

The fourth sealed expansion tank 304 is connected to the middle layer heating pipe 154 to adjust the water pressure in the middle layer heating pipe 154, and moves along the middle layer heating pipe 154 using compressed gas provided from the outside. It provides pressure so that the water can maintain a certain level of water pressure.

The fifth sealed expansion tank 305 is connected to the high-rise heating duct 156 to adjust the water pressure in the high-rise heating duct 156, and moves along the high-rise heating duct 156 using compressed gas provided from the outside. It provides pressure so that the water can maintain a certain level of water pressure.

As a specific aspect, the closed expansion tank 300 according to the present invention includes a water bag 320, a housing 330, and a charging valve 310, and optionally a drain valve (not shown). It can be.

The water bag 320 constituting the sealed expansion tank 300 is provided with an outlet communicating with the water supply pipe 100 or the heating pipe and receives water, and is made of an elastic material such as rubber to contract and expand. It consists of As the pump unit 200 operates, the water bag 320 fills the water through the water supply pipe 100 or the heating pipe, and through contraction, the water moving along the water supply pipe 100 or the heating pipe reaches a certain level. Provides pressure to maintain water pressure.

The housing 330 constituting the sealed expansion tank 300 is installed outside the water bag 320 to form a gas input space accommodating the compressed gas between the housing 320 and the gas input space. An inlet for the compressed gas to be injected is provided. The housing 330 provides a sealed environment when the inlet is closed so that the compressed gas supplied from the compressor 400 does not escape to the outside through the inlet. In addition, the housing 330 provides a changed pressure to the water bag 320 according to the amount of compressed gas accommodated therein.

If necessary, a built-in pressure sensor may be provided in the housing 330 . The built-in pressure sensor detects the internal pressure of the gas input space, generates a pressure signal when the internal pressure does not reach a preset reference pressure, and provides the pressure signal to the control panel 800 to be described later.

When the compressor 400 is operated under the control of the control panel 800, the sealed expansion tank 300 increases the internal pressure of the gas input space with the compressed gas supplied from the compressor 400, and the internal pressure of the gas input space gradually increases. When the accumulation of pressure is completed to a specified value while doing so, the compressor 400 is stopped under the control of the control panel 800. At this time, the control panel 800 analyzes the pressure signal provided from the built-in pressure sensor to determine the stop point of the compressor 400, and controls the compressor 400 to stop the compressor 400.

Then, when the internal pressure of the gas input space decreases to the restart set point, the control panel 800 restarts the compressor 400 . At this time, the control panel 800 analyzes the pressure signal provided from the built-in pressure sensor to determine the restart time point of the compressor 400, and controls the compressor 400 to operate the compressor 400.

Subsequently, when the internal pressure of the gas input space reaches the stop set point, the control panel 800 controls the compressor 400 to stop the compressor 400. At this time, the control panel 800 analyzes the pressure signal provided from the built-in pressure sensor to determine the stop point of the compressor 400, and controls the compressor 400 to stop the compressor 400.

The filling valve 310 constituting the closed expansion tank 300 is installed at the inlet of the housing 330 and controls the inflow of compressed gas supplied to the housing 330. At this time, the charging valve 310 of the first sealed expansion tank 301 and the compressor 400 are connected through a compressed gas transfer pipe.

In addition, the charging valve 310 opens the inlet when physical pressure is applied to the inlet from the outside, and closes the inlet when the physical pressure is removed. To this end, the charging valve 310 may be configured as a check valve.

The drain valve constituting the closed expansion tank 300 is installed in the housing 330 of the closed expansion tank 300, and discharges moisture formed when gas is compressed in the housing 330 to the outside of the housing 330. function.

The water pipe system according to the present invention may further include a pressing means 320.

As shown in FIG. 5, the pressing means 320 is installed at the inlet of the charging valve 310 composed of a check valve, and the compressed gas provided from the compressor 400 passes through the inlet of the charging valve 310 to the housing ( 330) to continuously open the inlet of the filling valve 310.

More specifically, the pressing means 320 includes an assembly tube 322 having a spiral portion formed on an inner circumferential surface so as to be assembled to a spiral portion formed at an inlet of the filling valve 310, a support plate 324 installed at the rear end of the assembly tube 322, And a push rod 326 connected to the front of the support plate 324 and formed to be longer than the assembly pipe 322 so as to protrude toward the front end of the assembly pipe 322 and inserted into the inlet of the filling valve 310 can be configured.

The assembly pipe 322 may be formed in a tubular or ring-shaped structure in which a hollow is formed and the front and rear ends are open, and the charging valve 310 is rotated clockwise or counterclockwise according to the structure of the spiral part. It can be assembled at the inlet of the

The support plate 324 connects the assembly tube 322 and the push bar 326 so that the push bar 326 can be installed at the center of the rear end of the assembly tube 322, and a plurality of It may be formed in a disc structure with through holes or in a cross-shaped or X-shaped structure.

Since the above-described closed expansion tank 300 is stored in a state where the compressed gas is injected therein so that it can be used immediately at a construction site, the charging valve 310 is a closed expansion tank even if the closed expansion tank 300 is not installed in the water piping system. Since the durability of the tank 300 is continuously deteriorated after fabrication, a problem may occur in the water piping system that the sealed expansion tank 300 is not sufficiently prevented from leaking compressed gas.

However, since the filling valve 310 is difficult to attach and detach from the closed expansion tank 300 due to the nature of the closed expansion tank 300, which must be sealed inside, the water piping system of the present invention uses the above-described pressing means 320. The filling valve 310 may be opened by doing so.

The water piping system according to the present invention may further include an auxiliary check valve 600.

The auxiliary check valve 600 passes the compressed gas supplied from the compressor 400 to the sealed expansion tank 300 and blocks the back flow of the compressed gas leaked through the charging valve 310. It is provided in the compressed gas moving pipe adjacent to, and may be configured as a check valve.

The above-described charging valve 310 is replaced after being detached from the housing 330 of the closed expansion tank 300 due to the nature of the closed expansion tank 300 requiring airtight performance even though its performance deteriorates with the passage of time. The problem is that it is difficult.

Accordingly, the auxiliary check valve 600 is installed in the compressed gas moving pipe adjacent to the filling valve 310 to supplement the function of the filling valve 310, which is difficult to replace, to prevent leakage of compressed gas from the sealed expansion tank 300. Minimize.

In addition, since the auxiliary check valve 600 is installed independently from the closed expansion tank 300, it can be easily replaced even if its performance deteriorates over time, so that the use period of the closed expansion tank 300 is increased. provides an effect.

As such, when the water piping system according to the present invention uses a commercially available sealed expansion tank 300, the charge valve 310 is used to resolve the uncertainty about the performance of the charge valve 310 as a check valve. A compressed gas moving pipe connected to the compressor 400 may be installed, and an auxiliary check valve replacing the function of the charging valve 310 may be provided in the compressed gas moving pipe. At this time, the auxiliary check valve is preferably installed to be located within a short distance of the charging valve 310, preferably within 30 cm.

When the charging valve 310 is opened by the pressing means 320 and an auxiliary check valve is installed behind the charging valve 310, leakage of the compressed gas supplied to the closed expansion tank 300 can be delayed. And, in the future, the auxiliary check valve can also be easily replaced compared to the charging valve 310.

As such, when the pressing means 320 and the auxiliary check valve are installed in the water piping system of the present invention, the internal pressure of the sealed expansion tank 300 moves the compressed gas located between the sealed expansion tank 300 and the auxiliary check valve. It becomes equal to the internal pressure of the pipe.

The water pipe system according to the present invention may further include an auxiliary pressure sensor 650.

The auxiliary pressure sensor 650 detects the internal pressure of the closed expansion tank 300 in a compressed gas moving pipe outside the closed expansion tank 300 when the closed expansion tank 300 without a built-in pressure sensor is used. , It is installed in the compressed gas moving pipe connecting between the charging valve and the auxiliary check valve.

In addition, the auxiliary pressure sensor 650 generates a pressure signal when the internal pressure of the sealed expansion tank 300 is less than a preset reference pressure, and transmits the pressure signal to the control panel 800.

As such, the auxiliary pressure sensor 650 detects the internal pressure of the closed expansion tank 300 from the outside of the closed expansion tank 300 even when the closed expansion tank 300 without a built-in pressure sensor is used, and the control panel 800 ), it is possible to establish an environment in which the internal pressure of the sealed expansion tank 300 is automatically adjusted by the control panel 800.

The water piping system according to the present invention may further include a ball valve (not shown).

The ball valve is installed between the charging valve 310 and the compressed gas moving pipe, and provides a function of selectively closing the charging valve 310 according to a manager's operation.

This ball valve can close or open the moving passage of the compressed gas formed between the charging valve 310 and the compressed gas moving pipe according to the manager's operation. For example, when the ball valve closes the inner passage according to the manager's operation, the compressor 400 cannot automatically supply the compressed gas to the inside of the sealed expansion tank 300, instead the internal pressure of the sealed expansion tank 300 is designated. It provides the effect of extending the period in which the pressure drop occurs below the pressure.

In addition, if the manager opens the inner passage of the ball valve before the compressor 400 supplies the compressed gas to the inside of the closed expansion tank 300, the compressor 400 supplies the compressed gas to the closed expansion tank 300 as before. can be supplied with

2 to 4, the water piping system according to the present invention includes a compressor 400.

The compressor 400 is connected to the charging valve 310 through a compressed gas transport pipe, and supplies compressed gas to the closed expansion tank 300 so that the internal pressure of the gas input space is maintained at a preset reference pressure.

When the compressor 400 is installed in a low-rise building, it provides a level of compressed gas necessary for the low-rise building.

And, when the compressor 400 is installed in a high-rise building, it provides a necessary level of compressed gas to the high-rise portion of the high-rise building. At this time, since water having a higher level of water pressure than the required water pressure is supplied to the lower part of the high-rise building through the water supply line 100, the water supply pipe of the lower part through the compressed gas moving pipe or the regulator 500 connected to the compressor 400 The pressure of the compressed gas supplied to the closed expansion tank 300 connected to the furnace 100 is lowered.

Referring to FIG. 3 , the compressor 400 according to the present invention may be connected to a first sealed expansion tank 301 and a second sealed expansion tank 302 . At this time, the compressor 400 may supply a required level of compressed gas to the closed expansion tank 300 installed in the upper pipe 110 among the plurality of closed expansion tanks 300 . For example, the compressor 400 supplies a required level of compressed gas to the first sealed expansion tank 301 installed in the high-rise pipeline 110 through the first sealed expansion tank 301 and the second sealed expansion tank 302. can

In other words, the compressor 400 is a plurality of sealed expansion tanks (300) connected to a higher level of compressed gas than required for the closed expansion tank 300 installed in the low-rise pipeline 120 so as to be suitable for maintaining the hydraulic pressure of the high-rise pipeline 110. ) are provided, respectively. At this time, it is preferable that the working pressure (applied pressure) of the compressor 400 is 11 to 20 Bar.

As the compressed gas provided by the compressor 400 to the hermetic expansion tank 300, nitrogen gas or air may be used. To this end, the compressor 400 may be provided with a nitrogen generator at the rear end to supply nitrogen instead of air.

Referring to FIG. 4, the compressor 400 according to the present invention includes a first sealed expansion tank 301, a second sealed expansion tank 302, a third sealed expansion tank 303, and a fourth sealed expansion tank 304. , may be connected to the fifth closed expansion tank (305). At this time, the compressor 400 supplies a certain level of compressed gas to the first closed expansion tank 301 to the fifth hermetic expansion tank 305 .

Referring to FIGS. 3 and 4 , the water piping system according to the present invention may further include a regulator 500 .

The regulator 500 is installed between the compressor 400 and the hermetic expansion tank 300, so that the air pressure of the compressed gas supplied from the compressor 400 is suitable for each location (high, middle, low) of the building. it depressurizes For example, the regulator 500 reduces the internal pressure of the gas input space formed in the second hermetic expansion tank 302 by the compressed gas supplied to the second hermetic expansion tank 302 to maintain a level of 6 to 10 bar.

To this end, the regulator 500 may be installed at the outlet of the compressor 400, or may be installed in a compressed gas transfer pipe connecting the regulator 500 and the closed expansion tank 300, and the closed expansion tank 300 It may be installed in the inlet of the filling valve 310.

As a first embodiment, the regulator 500 according to the present invention may include a first regulator 510 and a second regulator 520.

The first regulator 510 is installed between the compressor 400 and the first hermetic expansion tank 301 and adjusts the air pressure of the compressed gas supplied from the compressor 400 based on the first hermetic expansion tank 301. .

The second regulator 520 is installed between the compressor 400 and the second hermetic expansion tank 302 and adjusts the air pressure of the compressed gas supplied from the compressor 400 based on the second hermetic expansion tank 302. .

As a second embodiment, the regulator 500 according to the present invention may further include a third regulator 530, a fourth regulator 540, and a fifth regulator 550.

The third regulator 530 is installed between the compressor 400 and the third hermetic expansion tank 303 and adjusts the air pressure of the compressed gas supplied from the compressor 400 based on the third hermetic expansion tank 303. .

The fourth regulator 540 is installed between the compressor 400 and the fourth hermetic expansion tank 304 to adjust the air pressure of the compressed gas supplied from the compressor 400 based on the fourth hermetic expansion tank 304. .

The fifth regulator 550 is installed between the compressor 400 and the fifth hermetic expansion tank 305 and adjusts the air pressure of the compressed gas supplied from the compressor 400 based on the fifth hermetic expansion tank 305. .

The water piping system according to the present invention may further include a filter unit (not shown).

The filter unit is installed in the passage through which the compressed gas moves between the compressor 400 and the regulator, and prevents the water bag 320 from being damaged by foreign substances introduced into the gas input space. Filter the foreign matter contained.

As a specific aspect, the filter unit according to the present invention is a first passage through which compressed gas moves between the compressor 400 and the first regulator 510, and a compressed gas between the compressor 400 and the second regulator 520 is installed in each of the moving second passages to filter foreign substances included in the compressed gas provided from the compressor 400.

6 is a block diagram for explaining the electrical connection relationship of the water piping system according to the present invention. Referring to FIG. 6 , the water pipe system according to the present invention may further include pressure gauges 710 and 720 and a control panel 800 .

The pressure gauges 710 and 720 are installed between the regulator 500 and the closed expansion tank 300 to measure the air pressure of the compressed gas that has passed through the regulator 500, and information on the air pressure of the compressed gas that has passed through the regulator 500 After generating, it is provided to the control panel 800. Such a pressure gauge may be provided behind each regulator.

For example, when the water pipe system according to the present invention includes the first regulator 510 and the second regulator 520, the first pressure gauge 710 and the second pressure gauge 720 may be provided.

The first pressure gauge 710 is installed between the first regulator 510 and the first sealed expansion tank 301 to measure the air pressure of the compressed gas passing through the first regulator 510, and the first regulator ( 510) is generated and then provided to the control panel 800.

The second pressure gauge 720 is installed between the second regulator 520 and the second sealed expansion tank 302 to measure the air pressure of the compressed gas passing through the second regulator 520, and the second regulator ( 520) is generated and then provided to the control panel 800.

The control panel 800 is connected to the pump unit 200, the regulator 500, the compressor 400, the pressure gauge, and the auxiliary pressure sensor 650, and the pump unit 200, the regulator 500, Controls the operation of the compressor 400 and the pressure gauge.

Specifically, the control panel 800 may collect air pressure measured from a pressure gauge and control the compressor 400 and the regulator 500 so that compressed air having a preset air pressure reaches the hermetic expansion tank 300 . For example, the control panel 800 collects air pressures measured from the first pressure gauge 710 and the second pressure gauge 720, and sets the first sealed expansion tank 301 and the second sealed expansion tank with compressed gas having preset pressures. Controls the compressor 400, the first regulator 510 and the second regulator 520 to reach 302.

In addition, when a pressure signal is received from a pressure sensor installed inside the housing 330, the control panel 800 controls the compressor 400 until a pressure signal is not received from the pressure sensor to compress the airtight expansion tank 300. supply gas.

In addition, the control panel 800 controls the pump unit 200 so that the operation of the pump unit 200 is stopped when an OFF signal of the pump unit 200 is input from the outside, and the pump unit 200 is turned off from the outside. When an ON signal is input, the pump unit 200 is controlled so that the pump unit 200 operates.

Also, the control panel 800 controls the compressor 400 to supply compressed gas to the closed expansion tank 300 when a pressure signal is collected from the auxiliary pressure sensor 650 . At this time, the control panel 800 controls the compressor 400 to supply compressed gas to the closed expansion tank 300 after the pressure signal is collected from the auxiliary pressure sensor 650 until the collection of the pressure signal is stopped.

As necessary, the control panel 800 collects the air pressure measured from the pressure gauge, and the compressed gas of the preset air pressure is supplied to the third sealed expansion tank 303, the fourth sealed expansion tank 304, and the fifth sealed expansion tank. By controlling the compressor 400 and the regulator 500 to reach the expansion tank 305, constant pressure is maintained in the heating circulating water moving along the heating duct to prevent circulation failure and suppress generation of air bubbles in the heating duct.

Referring to FIG. 6 , the water pipe system according to the present invention may further include an on/off sensor 910 and an emergency shut-off valve 920.

The on/off sensor 910 is connected to the compressor 400, the first regulator 510, the second regulator 520, the first pressure gauge 710, and the second pressure gauge 720, the compressor 400, Detects the operation stop of the first regulator 510, the second regulator 520, the first pressure gauge 710, and the second pressure gauge 720 to generate a blocking signal, and provides the blocking signal to the control panel 800 .

The emergency shutoff valve 920 is installed between the charging valve 310 and the compressed gas moving pipe, and when a shutoff signal is received from the control panel 800, the internal passage is closed to seal the charging valve 310.

As such, the water piping system according to the present invention monitors the state change of the compressor 400, the regulator 500, and the pressure gauge, and when an abnormal state is detected from the compressor 400, the regulator 500, and the pressure gauge, the compressor 400 Stops the operation of the compressor 400 so that it does not operate, and closes the charging valve 310 through the emergency shut-off valve 920 until the abnormal state is released to prevent leakage of the compressed gas accommodated in the sealed expansion tank 300. suppress as much as possible

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

100: water supply pipe 110: high-rise pipe
120: low-rise duct 152: low-rise heating duct
154: middle heating pipe 156: high heating pipe
200: pump unit 210: first pump unit
220: second pump unit 230: third pump unit
240: fourth pump unit 250: fifth pump unit
300: sealed expansion tank 301: first sealed expansion tank
302: second sealed expansion tank 303: third sealed expansion tank
304: fourth sealed expansion tank 305: fifth sealed expansion tank
310: filling valve 320: water bag
330: housing 340: opening means
400: compressor 500: regulator
510: first regulator 520: second regulator
530: third regulator 540: fourth regulator
550: fifth regulator 600: auxiliary check valve
650: auxiliary pressure sensor 710: first pressure gauge
720: second pressure gauge 800: control panel
910: on-off sensor 920: emergency shut-off valve
W : water tank T : heating tank

Claims (10)

A water supply pipe that is connected to the water tank and provides a movement path for moving the water discharged from the water tank to the water supply point of the building;
a pump unit including one or more booster pumps installed in the water supply line;
It is connected to the water supply line between the water supply point and the pump unit to adjust the water pressure in the water supply line, and a gas input space and a water bag containing water are provided inside so that water and the compressed gas do not come into contact, and the gas is injected into the gas input space. A closed expansion tank equipped with a filling valve composed of a check valve to provide an inlet for compressed gas to be supplied;
a compressor connected to the charging valve through a compressed gas moving pipe to supply compressed gas to the hermetic expansion tank so that the internal pressure of the gas input space is maintained at a preset reference pressure;
an auxiliary check valve provided in a compressed gas moving pipe adjacent to the charging valve to pass the compressed gas supplied from the compressor to the closed expansion tank and to block a reverse flow of the compressed gas leaking through the charging valve;
a pressing means installed at an inlet of the charging valve composed of the check valve to continuously open the inlet;
It is installed in the compressed gas moving pipe connecting the filling valve and the auxiliary check valve to detect the internal pressure of the closed expansion tank from the outside of the closed expansion tank, and to signal a pressure signal when the internal pressure does not reach the preset reference pressure. Auxiliary pressure sensor for generating; and
When the pressure signal is collected from the auxiliary pressure sensor, a control panel for controlling the compressor so that the compressed gas is supplied to the sealed expansion tank until the collection of the pressure signal is stopped,
The closed expansion tank is provided with an outlet communicating with the water supply line and is installed outside the water bag so that a gas input space is formed between a water bag accommodating water and the water bag. A water piping system comprising a housing having an inlet for compressed gas, and a charging valve installed in the inlet. delete delete delete According to claim 1,
The water supply conduit is a high-rise conduit connected to the water tank to provide a movement path for moving the water discharged from the water tank to a water supply point on the upper floors of the building, and a movement path connected to the water tank to move the water discharged from the water tank to the water supply point on the lower floors of the building. Including a low-rise conduit that provides,
The pump unit is composed of a first pump unit including one or more booster pumps installed in the high-rise pipeline and a second pump unit including one or more booster pumps installed in the low-rise pipeline,
The closed expansion tank is composed of a first closed expansion tank connected to the high-rise pipeline to adjust the water pressure in the high-rise pipeline, and a second closed-type expansion tank connected to the low-rise pipeline to adjust the water pressure in the low-rise pipeline. Characterized in that water piping system. According to claim 5,
A first regulator installed between the compressor and the first hermetic expansion tank to adjust the air pressure of the compressed gas supplied from the compressor based on the first hermetic expansion tank, and
The water piping system further comprises a second regulator installed between the compressor and the second closed expansion tank to adjust the air pressure of the compressed gas supplied from the compressor based on the second hermetic expansion tank. According to claim 6,
It is installed in the first passage through which the compressed gas moves between the compressor and the first regulator and the second passage through which the compressed gas moves between the compressor and the second regulator, respectively, to remove foreign substances contained in the compressed gas provided from the compressor. A water piping system further comprising a filter unit for filtering. According to claim 6,
A first pressure gauge installed between the first regulator and the first sealed expansion tank to measure the air pressure of the compressed gas passing through the first regulator;
A second pressure gauge installed between the second regulator and the second sealed expansion tank to measure the air pressure of the compressed gas passing through the second regulator, and
Further comprising a control panel for controlling the first regulator and the second regulator so that compressed gas having a preset atmospheric pressure reaches the first sealed expansion tank and the second sealed expansion tank by collecting the air pressure measured from the first pressure gauge and the second pressure gauge. A water piping system, characterized in that for doing. According to claim 8,
an on/off sensor connected to the compressor, the first regulator, the second regulator, the first pressure gauge, and the second pressure gauge, generating a cut-off signal by detecting an operation stop thereof, and providing the cut-off signal to the control panel; and
The water piping system further comprises an emergency shutoff valve installed between the charging valve and the compressed gas moving pipe and closing the charging valve when a shutoff signal is received from the control panel. According to claim 1,
The water piping system further comprises a ball valve installed between the charging valve and the compressed gas moving pipe to selectively close the charging valve.

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