KR102445684B1 - Freeze prevention system for water-based fire extinguishing equipment - Google Patents

Abstract

Disclosed is a system for preventing freezing of water-based fire extinguishing facilities that can uniformly transfer heat to the entire fire extinguishing facility through circulation of heated water to maintain thermal equilibrium and prevent freezing of fire extinguishing facilities.
The system for preventing freezing of water-based fire extinguishing equipment according to an embodiment of the present invention includes a water tank in which water is stored, a fire-fighting apparatus configured to spray water to the outside, and water discharged from the water tank by connecting the water tank and the fire-fighting apparatus to the fire-fighting apparatus At least one of a piping line providing a flow path of water to be returned to the water tank, a pump disposed on the piping line, communicating with the water tank, and configured to discharge water stored in the water tank to flow along the piping line. and a warming device configured to transfer heat to either one.

Description

Freeze prevention system for water-based fire extinguishing equipment

The present invention relates to a system for preventing freezing of water-based fire extinguishing facilities, and more particularly, to a system for preventing freezing of water-based fire extinguishing facilities that supply water to sprinklers and indoor fire hydrants.

In general, fire extinguishing equipment is provided in buildings to quickly extinguish a fire when it occurs.

Fire extinguishing equipment provided in buildings is a wet type water-based fire extinguishing system in which pipes are usually filled with water, and typical examples include wet sprinklers and indoor fire hydrants.

However, the water-based fire extinguishing system as described above has a problem in that the water contained in the pipe is frozen in winter and the pipe is frozen as the water must always be kept in a state in which the pipe is filled.

Therefore, conventionally, a heater such as a heating wire is installed in a pipe, and when the atmospheric temperature falls below zero, the heater is operated to prevent freezing of the pipe.

However, the method of simply installing a heater in the pipe to prevent freezing of the pipe as described above has a problem in that heat is locally transmitted to the pipe and cannot prevent freezing of the entire pipe.

That is, when the heater installed in the pipe generates heat, the convection of heat mainly occurs in the upper part of the cross section of the pipe, and the heat is transmitted to the water only locally because it is insignificant in the longitudinal direction of the pipe, thereby preventing freezing of the entire pipe. There was no problem.

In addition, when a part of the heater is broken or a part of the heater needs to be replaced, there is a problem in that the water accommodated in the corresponding part is inevitably frozen because convection of thermal energy is not active in the pipe.

On the other hand, in order to solve the above problems, when too many heaters are installed in the pipe, there is a possibility that a problem of consuming a considerable amount of energy for heat generation of the heater may occur along with an increase in cost.

Registered Patent Publication No. 10-2074198

The present invention has been devised to solve the above problems, and an object of the present invention is to uniformly transfer heat to the entire fire extinguishing facility through the circulation of heated water to maintain thermal equilibrium and prevent freezing of the fire extinguishing facility. It is to provide a system for preventing freezing of water-based fire extinguishing facilities.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In accordance with an embodiment of the present invention for solving the above problems, there is provided a system for preventing freezing of water-based fire extinguishing facilities, comprising: a water tank configured to store water therein; a firefighting device provided in an openable and openable structure and configured to spray water to the outside when opened; a piping line connecting the water tank and the fire fighting device, and providing a flow path of the water so that the water discharged from the water tank is supplied to the fire fighting device or returned to the water tank; a pump disposed in the piping line, communicating with the water tank, configured to discharge water stored in the water tank to flow along the piping line; and a heating device configured to transfer heat to at least one of the water tank, the pipe line, and the pump.

The piping line connects the water tank and the pump to each other, a water supply pipe configured to guide the water discharged from the pump in one direction, and the water supply pipe and the water tank to each other, and to transfer the water passing through the water supply pipe to the water tank a main pipe including a return pipe configured to guide to; and a branch pipe branched from the water supply pipe and connected to the fire-fighting device, configured to guide the water introduced therein to the fire-fighting device.

The pipe line may include: a first flow path opening/closing device disposed in the return pipe and configured to open the flow path of the return pipe when the pump is driven and close the flow path of the return pipe when the pump is not driven; and a second flow path opening/closing device disposed in the branch pipe to open the flow path of the branch pipe when the fire fighting device is opened, and to close the flow path of the branch pipe when the fire fighting device is not opened. have.

The water discharged from the pump and flowing through the water supply pipe flows into the fire fighting device through the branch pipe when the second flow path switchgear is opened, and passes through the return pipe when the second flow path switchgear is not opened. may enter the tank.

The heating device may include: a first heating device configured to transfer heat to at least one of the water tank, the water supply pipe, and the pump; and a second heating device configured to transfer heat to the branch pipe.

The heating device may further include a third heating device configured to transfer heat to the return pipe.

a water temperature sensor disposed in the water return pipe and configured to sense the temperature of water flowing into the water tank; and a control unit configured to control driving of the pump and the heating device based on the information sensed by the water temperature sensor.

When the temperature of the water flowing into the water tank is less than a set temperature, the control unit heats and flows the water by driving the heating device and the pump. The pump can be stopped to limit the warming and flow of the water.

It may further include a flow meter disposed in the return pipe and the water supply pipe, respectively, configured to sense a flow rate of water flowing into the water tank and a flow rate of water discharged from the pump, respectively.

When the flow rate of water flowing into the water tank and the flow rate of water discharged from the pump are the same in a state in which the firefighting device is not opened, the control unit maintains the operation of the pump, and the flow rate of water flowing into the water tank and the pump When the flow rate of water discharged from the pump is different, the driving of the pump may be stopped.

The control unit may heat the water in a first set time period to accumulate thermal energy in the water tank, and circulate the water stored in the water tank in a second set time period different from the first set time period.

It further comprises an elevated water tank disposed at a relatively high position compared to the water tank and configured to be connected to the piping line, wherein the water discharged from the elevated water tank and introduced into the piping line naturally falls due to gravity to the water tank. can be imported.

The piping line may further include a return branch pipe configured to connect the branch pipe and the return pipe, and guide the water introduced into the branch pipe through the branch pipe to the return pipe.

A system for preventing freezing of water-based fire extinguishing facilities according to another embodiment of the present invention for solving the above problems includes: a first water tank configured to store water therein; a first pump in communication with the first water tank and configured to discharge water stored in the first water tank; a second water tank spaced apart from the first water tank and configured to store water therein; a second pump in communication with the second water tank and configured to discharge water stored in the second water tank; a firefighting device provided in an openable and openable structure and configured to spray water to the outside when opened; By connecting the first water tank, the first pump, the second water tank, the second pump, and the fire fighting device, the water discharged from the first pump flows into the second water tank and is discharged from the second pump a piping line providing a flow path of the water so that the used water is introduced into the first water tank; and a heating device configured to transfer heat to at least one of the first water tank, the first pump, the second water tank, the second pump, and the piping line.

The first pump may be driven only when the second pump is stopped, and the second pump may be driven only when the first pump is stopped.

The piping line includes a first water supply pipe connecting the first water tank and the first pump, a first return pipe connecting the first water supply pipe and the first water tank, and the second water tank and the second pump. a main pipe including a second water supply pipe, a second return pipe connecting the second water supply pipe and the second water tank, and a connecting pipe connecting the first water supply pipe and the second water supply pipe; and a branch pipe branched from the connection pipe and connected to the fire fighting device, configured to guide the water introduced therein to the fire fighting device.

The piping line is disposed in the first return pipe to open the flow path of the first return pipe when the second pump is driven, and to close the flow path of the first return pipe when the first pump is driven 1-1 flow path opening and closing device; and 1-2 disposed in the second return pipe to open the flow path of the second return pipe when the first pump is driven, and close the flow path of the second return pipe when the second pump is driven It may further include a flow path opening and closing device.

In a state in which the firefighting device is not opened, the water discharged from the first pump passes through the first water supply pipe, the connection pipe, and the second return pipe sequentially and flows into the second water tank, and the second pump The water discharged from the may be introduced into the first water tank by sequentially passing through the second water supply pipe, the connection pipe, and the first return pipe.

A process of introducing water from the first water tank into the second water tank and a process of introducing water from the second water tank into the first water tank may be sequentially performed.

According to an embodiment of the present invention, since heated water circulates along the piping line and transfers thermal energy to all parts of the piping line, thermal energy can be transferred quickly, and the temperature of the water in all parts is maintained above a certain temperature. Freezing can be effectively prevented.

In addition, according to an embodiment of the present invention, since the temperature of the entire water is kept constant by circulating the heated water, energy efficiency can be maximized, and the cost can be reduced by reducing the number of heating devices to be installed, as well as work efficiency. This can be improved.

In addition, according to an embodiment of the present invention, heat energy is stored by heating water in a time period that avoids the maximum load time period, and is configured to circulate the water stored in the water tank during the maximum load time period, so that energy can be efficiently managed and , the maintenance cost can be reduced.

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present invention.

1 to 4 are schematic diagrams of a system for preventing freezing of water-based fire extinguishing facilities according to an embodiment of the present invention.
5 and 6 are schematic diagrams of a system for preventing freezing of water-based fire extinguishing facilities according to another embodiment of the present invention.
7 is a schematic diagram showing a system for preventing freezing of a water-based fire extinguishing facility according to another embodiment of the present invention.

The embodiments described herein may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, the specific embodiments disclosed in the accompanying drawings are only provided to facilitate understanding of the various embodiments. Therefore, the technical spirit is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and scope of the invention.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but these elements are not limited by the above-described terms. The above terminology is used only for the purpose of distinguishing one component from another component.

In the present specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof. When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

Meanwhile, as used herein, a “module” or “unit” for a component performs at least one function or operation. In addition, a “module” or “unit” may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of “modules” or a plurality of “units” other than a “module” or “unit” that must be performed in specific hardware or are executed in at least one processor may be integrated into at least one module. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be abbreviated or omitted.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings.

1 to 4 are schematic diagrams of a system for preventing freezing of water-based fire extinguishing facilities according to an embodiment of the present invention.

1 and 2, the water-based fire-extinguishing facility freezing prevention system 100 (hereinafter referred to as 'water-based fire-extinguishing facility freezing prevention system 100') according to an embodiment of the present invention includes a water tank 110, a fire fighting device ( 120 ), a piping line 130 , a pump 140 , and a heating device 150 .

The water tank 110 stores water therein, and is connected to the fire fighting device 120 and the pump 140 through the pipe line 130 . For example, the water tank 110 is connected to an external water source (not shown). When the water stored inside the water tank 110 is consumed, water is supplied from an external water source, so that the amount of water stored inside the water tank 110 can be constantly maintained. In addition, the water tank 110 may be disposed underground or on the ground depending on the installation purpose and environment.

A piping line 130 is connected to one side of the water tank 110, and at least one valve (not shown) for controlling the discharge of water may be provided. For example, the at least one valve may be provided as a solenoid valve electrically connected to the control unit 170 and configured to open and close the flow path of the pipe line 130 according to a control signal of the control unit 170 .

The firefighting device 120 is connected to the water tank 110 through the piping line 130 and is provided in a structure that can be opened and closed.

Specifically, the fire fighting device 120 is opened when a fire occurs and is provided in a structure to spray water to the outside. For example, the firefighting device 120 is provided as a conventional wet sprinkler configured to automatically open the head and spray water to the outside when a fire occurs as shown in FIGS. 1 and 3, or FIGS. 2 and 3 . As shown in 4, when a fire occurs, it may be provided as a conventional indoor fire hydrant configured to spray water to the outside by a user's manipulation. However, the firefighting device 120 is not necessarily limited thereto, and may be changed to various types of firefighting equipment.

1 to 4 , the piping line 130 connects the water tank 110 and the fire fighting device 120 so that water discharged from the water tank 110 is supplied to the fire fighting device 120 or the water tank 110 . ) to provide a flow path for water. That is, the pipe line 130 connects the outlet (not shown) and the inlet (not shown) provided in the water tank 110 to each other to provide a first flow path F1 for guiding the movement of water, the water tank 110 and the fire fighting device. A second flow path F2 for guiding the movement of water may be provided by connecting 120 . Accordingly, the pipe line 130 provides the above-described first flow path F1 when the fire-fighting device 120 is not opened, and provides the above-described second flow path F2 when the fire-fighting device 120 is opened due to a fire. ) can be provided.

The piping line 130 may include a main pipe 131 and a branch pipe 132 .

The main pipe 131 may connect the outlet and the inlet of the water tank 110 to each other so that the water discharged from the water tank 110 is returned to the water tank 110 . In addition, the pump 140 may be connected to the main pipe 131 . Therefore, when the pump 140 is driven, the water stored in the water tank 110 flows into the pump 140 through one side of the main pipe 131 connecting the pump 140 and the outlet of the water tank 110 , and then the pump It is discharged from 140 and may flow along the other side of the main pipe 131 connecting the pump 140 and the inlet of the water tank 110 .

The main pipe 131 may include a water supply pipe 131A and a return pipe 131B.

The water supply pipe 131A may connect the outlet of the water tank 110 and the pump 140 to each other, and guide the water discharged from the pump 140 in one direction. In addition, a branch pipe 132 may be connected to one section of the water supply pipe 131A. Accordingly, the water flowing through the water supply pipe (131A) may pass through the water supply pipe (131A) and may be introduced into the return pipe (131B) or may be introduced into the branch pipe (132).

The return pipe 131B may connect the water supply pipe 131A and the inlet of the water tank 110 to each other, and guide the water passing through the water supply pipe 131A to the water tank.

The branch pipe 132 is branched from the water supply pipe 131A and is connected to the firefighting device 120, and when the firefighting device 120 is opened due to a fire, the water introduced therein may be guided to the firefighting device 120. . That is, when the fire-fighting device 120 is opened due to the occurrence of a fire and the water charged in the branch pipe 132 is discharged, and the pressure inside the branch pipe 132 is lowered, the branch pipe 132 is a water supply pipe ( The water introduced into the interior through 131A may be guided to the firefighting device 120 .

The pipe line 130 may further include a first flow path opening and closing device 133 and a second flow path opening and closing device 134 .

The first flow path opening and closing device 133 is disposed at the end of the return pipe 131B connected to the inlet of the water tank 110 , and can selectively open and close the flow path of the return pipe 131B. Specifically, the first flow path opening/closing device 133 opens the flow path of the return pipe 131B so that water flows into the water tank 110 when the pump 140 is driven, and when the pump 140 is not driven, the water tank 110 ) may close the flow path of the return pipe (131B) to block the inflow of water. For example, the first flow path switch 133 may be applied as an electrically controllable solenoid valve. However, the first flow path opening/closing device 133 is not necessarily limited thereto, and may be applied to various types of valves.

The second flow path opening/closing device 134 is disposed on the branch pipe 132 to selectively open and close the flow path of the branch pipe 132 . Specifically, in the second flow path switchgear 134 , when the fire fighting device 120 is opened, the internal pressure of one side of the branch pipe 132 connecting the second flow path switchgear 134 and the fire fighting device 120 is lowered. The flow path of the branch pipe 132 is automatically opened so that water is introduced from the other side of the branch pipe 132 connecting the second flow path opening and closing device 134 and the water supply pipe 131A. In addition, in the second flow path opening and closing device 134 , the fire fighting device 120 is not opened, so that the internal pressure of one side of the branch pipe 132 connecting the second flow path opening and closing device 134 and the fire fighting device 120 is not lowered. Otherwise, the flow path of the branch pipe 132 is closed to block the inflow of water from the other side of the branch pipe 132 . For example, when the firefighting device 120 is applied in the form of a wet sprinkler as shown in FIGS. 1 and 3 , the second flow path switchgear 134 is a clapper (?) that opens and closes the flow path of the branch pipe 132 therein. And, when the clapper is opened, it may be provided with a conventional water flow detection device including an alarm valve (?) that transmits the opening of the clapper as an electrical signal to the control unit 170 . And, when the fire-fighting device 120 is applied in the form of an indoor fire hydrant as shown in FIGS. 2 and 4 , the second flow path opening/closing device 134 may be provided in the form of a valve.

Therefore, the water discharged from the pump 140 and flowing through the water supply pipe 131A flows into the fire fighting device 120 through the branch pipe 132 when the second flow path opening/closing device 134 is opened, and the second flow path opening/closing device 134 is opened. When the device 134 is not opened, it may be introduced into the water tank 110 through the return pipe 131B.

1 to 4 , the pump 140 is disposed on the piping line 130 to communicate with the water tank 110 , and to discharge water stored in the water tank 110 to flow along the piping line 130 . is composed

Specifically, the pump 140 generates a pressure difference in the pipeline to discharge the water stored in the water tank 110 , and through this, the water can be transferred in one direction. For example, the pump 140 may be manually controlled by a user or configured to be automatically controlled through the control unit 170 .

In addition, although not specifically shown in the drawings, an auxiliary pump (not shown) may be further provided on one side of the pump 140 .

The auxiliary pump may be driven when the pressure of the pump 140 is lowered to maintain a constant pressure of the pump 140 , and may replace the role of the pump 140 when the pump 140 is stopped.

In addition, although not specifically shown in the drawings, a check valve (not shown) and a gate valve (not shown) for controlling the flow of water may be provided on the outlet side of the pump 140 . In addition, a pressure gauge (not shown) may be disposed between the check valve and the gate valve.

The heating device 150 heats water by transferring heat to at least one of the water tank 110 , the piping line 130 , and the pump 140 . Although not specifically shown in the drawing, the heating device 150 includes a heat generating unit (not shown) configured to radiate heat, and is coupled or disposed on an object to transfer heat emitted from the heat generating unit to the object or around the object. It may be provided as a metal heater including a housing (not shown). Here, the housing is provided in the shape of a hollow tube having a single body so that the heat generating unit can enter and exit in the longitudinal direction, and a plug made of an elastic material configured to close the opening of the housing may be coupled to both ends of the housing. In addition, the heating device 150 is an adapter (not shown) configured to be slide-coupled to the housing on one side when the object is a pipe, and the other side is detachably coupled to the outer surface of the object to transfer heat emitted from the housing to the object. may include more. However, the heating device 150 is not necessarily limited thereto, and may be changed in various forms. For example, the heating device 150 is provided in the form of a heating wire that is installed in at least one of the water tank 110, the piping line 130, and the pump 140 to transfer heat, or from the outside the water tank 110, It may be provided in the form of transferring heat to at least one of the piping line 130 and the pump 140 .

The heating device 150 includes a first heating device 151 that transfers heat to at least one of the water tank 110 , the water supply pipe 131A, and the pump 140 , and a second heating device 151 that transfers heat to the branch pipe 132 . A warming device 152 may be included. For reference, in the drawings, the first heating device 151 is illustrated in a state in which it is installed only in a specific part, but this is only for reference. 140) may be installed in at least one of them.

In addition, the heating device 150 may further include a third heating device 153 for transferring heat to the return pipe (131B).

The water-based fire extinguishing facility freezing prevention system 100 may further include a water temperature sensor 160 and a control unit 170 .

The water temperature sensor 160 may be disposed in the water return pipe 131B to detect the temperature of water flowing into the water tank, and transmit a signal thereof to the control unit 170 .

Specifically, the water temperature sensor 160 is disposed in the first flow path opening and closing device 133 coupled to the end of the water return pipe 131B, and when the first flow path opening and closing device 133 is opened, the first flow path opening and closing device 133 . It is configured to sense the temperature of the water flowing into the water tank 110 through the. However, the water temperature sensor 160 is not necessarily disposed only in the first flow path opening/closing device 133 , and may be further disposed at various locations capable of sensing the temperature of water.

On the other hand, although not shown in the drawings, the water-based fire extinguishing facility freezing prevention system 100 is disposed in any one part of the piping line 130, and detects the ambient air temperature of the space in which the piping line 130 is disposed and transmits a signal thereof. It may further include an air temperature sensor (not shown) configured to transmit to the control unit 170 .

The controller 170 may control the driving of the first flow path opening/closing device 133 , the pump 140 , and the heating device 150 based on the information sensed by the water temperature sensor 160 and the air temperature sensor.

That is, the control unit 170 is electrically connected to the pump 140 , the heating device 150 , the first flow path opening and closing device 133 , and the water temperature sensor 160 , and analyzes the temperature information transmitted from the water temperature sensor 160 . Thus, the pump 140 , the heating device 150 , and the first flow path opening/closing device 133 can be controlled.

Specifically, when the temperature of the water flowing into the water tank 110 is less than the set temperature, the control unit 170 drives the first flow path opening/closing device 133 to open the flow path of the water exchange pipe 131B and then the heating device 150 . and driving the pump 140 to warm and circulate water. Then, when the temperature of the water flowing into the water tank 110 is equal to or higher than the set temperature, the control unit 170 stops the heating device 150 and the pump 140 to limit the heating and circulation of the water and then the first flow path opening/closing device 133 ) to close the flow path of the return pipe (131B) by driving. For example, the set temperature is preferably set to 5°C.

The water-based fire extinguishing facility freezing prevention system 100 may further include a flow meter 180 .

The flow meter 180 is disposed in the return pipe 131B and the water supply pipe 131A, respectively, is electrically connected to the control unit 170, and measures the flow rate of water flowing into the water tank 110 and the flow rate of water discharged from the pump 140, respectively. After sensing, a signal thereof may be transmitted to the control unit 170 . For example, the flow meter 180 is disposed on the first flow path switchgear 133 and detects the flow rate of water flowing into the water tank 110 through the first flow path switch 133 and the pump 140 . ) may include a second flow meter disposed on the outlet side to sense the flow rate of water discharged to the water supply pipe 131A through the pump 140 .

Accordingly, the control unit 170 may control the pump 140 by determining whether there is an abnormality in the pipe line 130 based on the information sensed from the flow meter 180 .

Specifically, when the flow rate of water flowing into the water tank 110 and the flow rate of water discharged from the pump 140 are the same in a state in which the firefighting device 120 is not opened, the control unit 170 may cause an abnormality in the piping line 130 . It is determined that there is no driving of the pump 140 can be maintained. Conversely, when the flow rate of water flowing into the water tank 110 and the flow rate of water discharged from the pump 140 are different in the state in which the firefighting device 120 is not opened, the control unit 170 has an abnormality in the piping line 130 . It is determined that the operation of the pump 140 can be stopped.

In addition, the control unit 170 may heat water in the first set time period to accumulate thermal energy in the water tank 110 , and circulate the water stored in the water tank 110 in a second set time period different from the first set time period. .

Specifically, the control unit 170 controls the pump 140 and the heating device 150 so that the water stored in the water tank 110 reaches the set temperature during a time period other than the peak time (a first set time period). drive to warm and circulate the water. Then, the control unit 170 circulates the water stored in the water tank 110 by controlling only the pump 140 during the maximum load time period (the second set time period). Accordingly, it is possible to efficiently manage energy to reduce maintenance costs and to prevent overall freezing. For example, the peak load time refers to the time period when the demand for electricity is the most concentrated, and in detail, from March to October, from 10 to 12 and 13:00 to 17:00, and from November to February, from 10 to 12 and 17 It can mean -20 o'clock or 22-23 o'clock.

3 and 4 , the water-based fire extinguishing facility freezing prevention system 100 may further include an elevated water tank 190 .

The elevated water tank 190 may be disposed at a relatively higher position than the water tank 110 and may be connected to the piping line 130 . Accordingly, water discharged from the elevated water tank 190 and flowing into the return pipe 131B of the piping line 130 may naturally fall due to gravity and flow into the water tank 110 .

A heating device 150 may be disposed in the high water tank 190 . Accordingly, the water stored in the high water tank 190 may be heated to a set temperature. Specifically, a first heating device 151 may be disposed in the elevated water tank 190 to heat water stored therein. For example, when the first heating device 151 is disposed in the high water tank 190 in consideration of energy efficiency, the first heating device 151 is provided in the water tank 110 , the water supply pipe 131A, and the pump 140 . It may not be disposed or may be additionally disposed in at least one of the water tank 110 , the water supply pipe 131A and the pump 140 .

Hereinafter, the water-based fire extinguishing facility freezing prevention system 100 according to another embodiment of the present invention will be described.

For reference, for each configuration for describing the water-based fire-extinguishing facility freezing prevention system 100 according to another embodiment of the present invention, the same reference numerals used while describing the water-based fire-extinguishing facility freezing prevention system 100 are used for convenience of explanation. and the same or duplicate description will be omitted.

5 and 6 are schematic diagrams of a system for preventing freezing of water-based fire extinguishing facilities according to another embodiment of the present invention.

5 and 6 , the piping line 130 may further include a water exchange branch pipe 135 .

The return branch pipe 135 may connect the branch pipe 132 and the return pipe 131B, and guide the water flowing into the branch pipe 132 to the return pipe 131B.

Therefore, when water is discharged from the pump 140 in a state in which the firefighting device 120 is not opened, the water flowing through the water supply pipe 131A flows into the branch pipe 132 and flows through the branch pipe 132 . Water passes through the portion communicating with the firefighting device 120 and flows into the return water branch pipe 135 , passes through the return water branch pipe 135 and the return water pipe 131B sequentially, and then flows into the water tank 110 .

At this time, in the case of the structure in which the return water branch pipe 135 is applied to the pipe line 130, as the heated water circulates while passing through both the main pipe 131 and the branch pipe 132, the heating device 150 is a minimum Quantity can be applied. Accordingly, by minimizing the installation of the heating device 150 , it is possible to reduce costs and improve energy efficiency. For example, the heating device 150 may be preferably installed in the water tank 110 or the high water tank 190 . However, the heating device 150 is not necessarily installed only in the water tank 110 or the high water tank 190, and may be additionally installed in other parts as necessary.

On the other hand, referring to FIGS. 5 and 6 , in the case of the structure in which the water return branch pipe 135 is applied to the piping line 130 , the fire extinguishing device 120 is illustrated only as a sprinkler, but it is not necessarily limited thereto. Even when the device 120 is provided in the form of an indoor fire hydrant, the water exchange pipe 135 may be applied.

Hereinafter, the water-based fire extinguishing facility freezing prevention system 100 according to another embodiment of the present invention will be described.

For reference, for each configuration for describing the water-based fire-extinguishing facility freezing prevention system 100 according to another embodiment of the present invention, for convenience of explanation, the water-based fire-extinguishing facility freezing prevention system 100 and the water-based fire extinguishing facility freezing prevention system 100 according to another embodiment of the present invention The same reference numerals used while describing the water-based fire extinguishing system freeze prevention system 100 will be used, and the same or duplicated description will be omitted.

7 is a schematic diagram showing a system for preventing freezing of a water-based fire extinguishing facility according to another embodiment of the present invention.

Referring to FIG. 7 , the water-based fire extinguishing facility freezing prevention system 100 according to another embodiment of the present invention includes a plurality of water tanks 111 and 112 , a plurality of pumps 141 and 142 , a fire fighting device 120 , and a pipe. line 130 and a warmer 150 .

The plurality of water tanks 111 and 112 includes a first water tank 111 configured to store water therein, and a second water tank 112 spaced apart from the first water tank 111 and configured to store water therein. do.

The plurality of pumps 141 and 142 communicate with the first water tank 111 and communicate with the first pump 141 and the second water tank 112 configured to discharge the water stored in the first water tank 111, 2 It may include a second pump 142 configured to discharge the water stored in the water tank (112). In addition, the first pump 141 and the second pump 142 may be driven alternately. Specifically, the first pump 141 may be driven only in a state in which the second pump 142 is stopped, and the second pump 142 may be driven only in a state in which the first pump 141 is stopped.

The fire fighting device 120 is connected to the plurality of water tanks 111 and 112 and the plurality of pumps 141 and 142 through the pipe line 130 and is provided in an openable and openable structure. Specifically, the fire fighting device 120 is opened when a fire occurs and is configured to spray water to the outside. For example, the fire fighting device 120 may be provided in the form of a sprinkler or an indoor fire hydrant.

The piping line 130 connects the first water tank 111 , the first pump 141 , the second water tank 112 , the second pump 142 and the fire fighting device 120 to provide a flow path of water. Specifically, the pipe line 130 is such that the water discharged from the first pump 141 flows into the second water tank 112 and the water discharged from the second pump 142 flows into the first water tank 111 . , it provides a flow path for water.

The piping line 130 may include a main pipe 131 and a branch pipe 132 .

The main pipe 131 may include a plurality of water supply pipes 131A and 131C, a plurality of return pipes 131B and 131D and a connection pipe 131E.

Specifically, the main pipe 131 is a first water supply pipe 131A connecting the first water tank 111 and the first pump 141, and a first water exchange connecting the first water supply pipe 131A and the first water tank 111. Pipe 131B, a second water supply pipe 131C connecting the second water tank 112 and the second pump 142, and a second return pipe 131D connecting the second water supply pipe 131C and the second water tank 112 ) and a connection pipe (131E) for connecting the first water supply pipe (131A) and the second water supply pipe (131C) may be included.

The branch pipe 132 is branched from the connection pipe 131E to be connected to the fire fighting device 120 , and may guide the water introduced therein to the fire fighting device 120 .

Also, the pipe line 130 may further include a plurality of first flow path opening and closing devices 133A and 133B and a second flow path opening and closing device 134 .

The plurality of first flow path opening and closing devices 133A and 133B may include a 1-1 flow path opening and closing device 133A and a 1-2 flow path opening and closing device 133B.

The 1-1 flow path opening/closing device 133A may be disposed at an end of the first return pipe 131B coupled to the inlet of the first water tank 111 to open and close the flow path of the first return pipe 131B. Specifically, the 1-1 flow path opening/closing device 133A opens the flow path of the first return pipe 131B when the second pump 142 is driven, and opens the flow path of the first return pipe 131B when the first pump 141 is driven. 131B) can be closed. For example, the 1-1 channel opening/closing device 133A may be provided as a solenoid valve.

The 1-2 flow path opening/closing device 133B may be disposed at an end of the second return pipe 131D coupled to the inlet of the second water tank 112 to open and close the flow path of the second return pipe 131D. Specifically, the 1-2 flow path opening/closing device 133B opens the flow path of the second return pipe 131D when the first pump 141 is driven, and opens the flow path of the second return pipe 131D when the second pump 142 is driven. 131D) can be closed. For example, the 1-2 flow path opening/closing device 133B may be provided as a solenoid valve.

Accordingly, when the first pump 141 is driven in a state in which the firefighting device 120 is not opened, the first return pipe 131B is closed, and the first water supply pipe 131A and the second return pipe 131D are closed. is open Accordingly, the water stored in the first water tank 111 is discharged through the first pump 141 and sequentially passes through the first water supply pipe 131A, the connection pipe 131E, and the second return pipe 131D to the second water tank. (112) is introduced. And, when the driving of the first pump 141 is finished, the second pump 142 is driven, and at the same time the second return pipe 131D is closed, and the second water supply pipe 131C and the first return pipe ( 131B) is opened. Accordingly, the water stored in the second water tank 112 is discharged through the second pump 142 and sequentially passes through the second water supply pipe 131C, the connection pipe 131E, and the first return pipe 131B to the first water tank. (111) is introduced. That is, a process in which water flows from the first water tank 111 to the second water tank 112 and a process in which water flows into the first water tank 111 from the second water tank 112 are alternately performed.

On the other hand, although one connection pipe 131E connecting the first water supply pipe 131A and the second water supply pipe 131C is illustrated in FIG. 7 , the connection pipe 131E is not necessarily limited thereto, and a plurality of pipes may be provided. may be In this case, a process of introducing water from the first water tank 111 into the second water tank 112 and a process of introducing water from the second water tank 112 into the first water tank 111 may proceed simultaneously. Accordingly, water is continuously circulated to maximize the heating effect. The second flow path opening/closing device 134 is disposed on the branch pipe 132, and when the fire fighting device 120 is opened, the flow path of the branch pipe 132 is opened, and when the fire fighting device 120 is not opened, the branch pipe 132 is opened. ) can be closed. For example, the second flow path opening/closing device 134 may be provided as a valve device.

The heating device 150 may be disposed in at least one of the first water tank 111 , the first pump 141 , the second water tank 112 , the second pump 142 , and the piping line 130 to transfer heat. have.

Specifically, the heating device 150 is configured to transfer heat to at least one of the first water tank 111 , the first pump 141 , the second water tank 112 , the second pump 142 , and the main pipe 131 . It may include a first heating device 151 configured to and a second heating device 152 configured to transfer heat to the branch pipe 132 .

The water-based fire extinguishing facility freezing prevention system 100 according to another embodiment of the present invention is disposed in the plurality of first flow path opening and closing devices 133A and 133B and a water temperature sensor 160 configured to sense the temperature of water, a plurality of 1 is disposed in the flow opening and closing device (133A, 133B) and the plurality of pumps (141, 142), the flow rate of water flowing into the first water tank 111 and the second water tank 112, and the first pump 141 and the second pump Based on the information transmitted from the flow meter 180 and the water temperature sensor 160 and the flow meter 180 configured to measure the flow rate of water discharged from the 142, a plurality of first flow path opening/closing devices 133A, 133B, a plurality of The control unit 170 for controlling the pumps 141 and 142 and the heating device 150 may be further included.

As such, according to the embodiment of the present invention, since the heated water circulates along the piping line 130 and transfers thermal energy to all parts, the thermal energy can be convected quickly, and the temperature of the water in all parts is kept constant, so that it is efficient to prevent freezing.

In addition, according to the embodiment of the present invention, since the temperature of the entire water is kept constant by circulating the heated water, energy efficiency can be maximized, and the cost can be reduced by reducing the quantity of the heating device 150 to be installed. , work efficiency can be improved. For reference, in this embodiment, the thermal energy generated from the heating device 150 accounts for 80% of the weight, and the heat energy circulated through the pump 140 accounts for 20%.

In addition, according to an embodiment of the present invention, heat energy is stored by heating water in a time period that avoids the maximum load time period, and is configured to circulate the water stored in the water tanks 110 and 190 during the maximum load time period. can be managed and maintenance costs can be reduced.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made within the scope without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate, and the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100. Water-based fire extinguishing system freeze prevention system
110. Aquarium
111. Tank 1
112. Tank 2
120. Firefighting system
130. Pipeline
131. Main pipe
131A. water supply pipe, first water supply pipe
131B. water exchange pipe, first water exchange pipe
131C. 2nd water pipe
131D. 2nd water pipe
131E. connector
132. Branch pipe
133. First flow path switch
133A. Article 1-1 Euro Switching Device
133B. Article 1-1 Euro Switching Device
134. Second flow path switch
135. Water return pipe
140. Pump
141. First Pump
142. Second pump
150. Warmer
151. First warming device
152. Second warming device
153. Third warming device
160. Water temperature sensor
170. Controls
180. Flowmeter
190. High water tank

Claims (19)

water tank in which water is stored;
a firefighting device configured to spray water to the outside;
a piping line connecting the water tank and the fire fighting device and providing a flow path of the water so that the water discharged from the water tank is supplied to the fire fighting device or returned to the water tank;
a pump disposed in the piping line, communicating with the water tank, configured to discharge water stored in the water tank to flow along the piping line; and
A heating device configured to transfer heat to at least one of the water tank, the pipe line, and the pump,
The pipe line is
A water supply pipe configured to connect the water tank and the pump to each other, guide the water discharged from the pump in one direction, and the water supply pipe and the water tank to each other, and to guide the water passing through the water supply pipe to the water tank a main pipe including a return pipe; and
a branch pipe branched from the water supply pipe and connected to the fire fighting device, configured to guide the water introduced therein to the fire fighting device; and
A water-based fire extinguishing system freezing prevention system, which connects the branch pipe and the return pipe and is configured to guide the water introduced into the branch pipe through the branch pipe to the return pipe. delete According to claim 1,
The pipe line is
a first flow path opening and closing device disposed in the return pipe and configured to open the flow path of the return pipe when the pump is driven and close the flow path of the return pipe when the pump is not driven; and
A second flow path opening/closing device disposed in the branch pipe and configured to open the flow path of the branch pipe when the fire fighting device is opened and close the flow path of the branch pipe when the fire fighting device is not opened Fire Extinguishing Equipment Freeze Prevention System. 4. The method of claim 3,
The water discharged from the pump and flowing through the water supply pipe flows into the fire fighting device through the branch pipe when the second flow path switchgear is opened, and passes through the return pipe when the second flow path switchgear is not opened. Water-based fire extinguishing system freezing prevention system flowing into the water tank. According to claim 1,
The heating device is
a first heating device configured to transfer heat to at least one of the water tank, the water supply pipe, and the pump; and
Including a second heating device configured to transfer heat to the branch pipe, water-based fire protection system freezing prevention system. 6. The method of claim 5,
The heating device is
The water-based fire extinguishing system freezing prevention system further comprising a third heating device configured to transfer heat to the return pipe. According to claim 1,
a water temperature sensor disposed in the water return pipe and configured to sense the temperature of water flowing into the water tank; and
Further comprising a control unit configured to control the operation of the pump and the heating device based on the information sensed by the water temperature sensor, the water-based fire extinguishing system freezing prevention system. 8. The method of claim 7,
The control unit is
If the temperature of the water flowing into the water tank is less than the set temperature, the heating device and the pump are driven to heat and flow the water,
When the temperature of the water flowing into the water tank is above a set temperature, the water-based fire extinguishing system freeze prevention system stops the heating device and the pump to limit the heating and flow of the water. 8. The method of claim 7,
Further comprising a flow meter disposed in the return pipe and the water supply pipe, respectively, configured to sense a flow rate of water flowing into the water tank and a flow rate of water discharged from the pump, respectively. 10. The method of claim 9,
The control unit is
If the flow rate of water flowing into the water tank is the same as the flow rate of water discharged from the pump in a state in which the firefighting device is not opened, the operation of the pump is maintained, and the flow rate of water flowing into the water tank and the water discharged from the pump When the flow rate is different, the water-based fire extinguishing system freeze prevention system stops the driving of the pump. 8. The method of claim 7,
The control unit heats the water in a first set time period to accumulate thermal energy in the water tank, and circulates the water stored in the water tank in a second set time period different from the first set time period. According to claim 1,
It further comprises an elevated water tank disposed at a relatively high position compared to the water tank and configured to be connected to the pipe line,
Water discharged from the elevated water tank and introduced into the pipe line naturally falls by gravity and flows into the water tank. delete a first water tank configured to store water therein;
a first pump in communication with the first water tank and configured to discharge water stored in the first water tank;
a second water tank spaced apart from the first water tank and configured to store water therein;
a second pump in communication with the second water tank and configured to discharge water stored in the second water tank;
a firefighting device provided in an openable and openable structure and configured to spray water to the outside when opened;
By connecting the first water tank, the first pump, the second water tank, the second pump, and the fire fighting device, the water discharged from the first pump flows into the second water tank and is discharged from the second pump a piping line providing a flow path of the water so that the used water is introduced into the first water tank; and
a heating device configured to transfer heat to at least one of the first water tank, the first pump, the second water tank, the second pump, and the piping line,
The pipe line is
A first water supply pipe connecting the first water tank and the first pump, a first water exchange pipe connecting the first water supply pipe and the first water tank, a second water supply pipe connecting the second water tank and the second pump, the a main pipe including a second return pipe connecting a second water supply pipe and the second water tank and a connection pipe connecting the first water supply pipe and the second water supply pipe; and
and a branch pipe branched from the connection pipe and connected to the fire fighting device, and configured to guide the water introduced into the fire fighting device to the fire fighting device. 15. The method of claim 14,
The first pump can be driven only when the second pump is stopped, and the second pump can be driven only when the first pump is stopped. delete 16. The method of claim 15,
The pipe line is
A 1-1 flow path disposed in the first return pipe and configured to open the flow path of the first return pipe when the second pump is driven and close the flow path of the first return pipe when the first pump is driven switchgear; and
A 1-2 flow path disposed in the second return pipe to open the flow path of the second return pipe when the first pump is driven and close the flow path of the second return pipe when the second pump is driven Further comprising a switchgear, water-based fire extinguishing system freeze protection system. 18. The method of claim 17,
In a state in which the firefighting device is not opened, the water discharged from the first pump passes through the first water supply pipe, the connection pipe, and the second return pipe sequentially and flows into the second water tank, and the second pump Water discharged from the second water supply pipe, the connection pipe, and the first return pipe sequentially passed through the flow into the first water tank, water-based fire protection system freezing prevention system. 19. The method of claim 18,
The process of introducing water from the first tank to the second tank and the process of introducing water from the second tank into the first tank are sequentially performed.

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