KR20230165728A - Compartment-connected sprinkler piping and the installation method thereof - Google Patents

Abstract

The present invention relates to sprinkler piping installed when multiple households located on the same floor are connected by one inlet pipe. The compartment-separated sprinkler piping of the present invention and its installation method include a household pipe arranged one per household, a central connection pipe connected to each household pipe in a common space, and a compartment connection pipe that connects each household pipe to form a loop shape, By minimizing the pipe diameter to facilitate sprinkler piping construction and at the same time minimizing the number of pipes required, there is an effect of maintaining equal piping pressure for each household (compartment) and flow rate when opening the sprinkler nozzle within the legal range more economically.

Description

Compartment-connected sprinkler piping and the installation method thereof}

The present invention relates to sprinkler piping installed when multiple households located on the same floor are connected by one inlet pipe.

In apartment houses, the space between the ceiling and the ceiling is narrow, so there were many difficulties in installing sprinkler pipes according to the general pipe installation method. Furthermore, in cases where multiple households (compartments) on the same floor are connected by a single inlet pipe, such as an apartment complex, design and construction were more difficult. For example, general sprinkler piping uses 40A (inner diameter 40.63mm, CPVC standard) piping. Considering that in the case of 40A piping, the spacing between the ceiling and the half is usually 170mm, the spacing between the ceiling and the half is narrow, so the piping There were difficulties with installation.

Accordingly, there have been attempts in the past to reduce the diameter of sprinkler pipes installed within households. However, related laws and regulations limit the upper limit of the flow speed of sprinkler pipes (the flow speed of branch pipes cannot exceed 6 m/s, and the flow speed of other pipes cannot exceed 10 m/s), and to satisfy this, the flow speed according to the pipe diameter must be adjusted. As a result of the calculation, it was calculated that replacing the 40A pipe with a thinner 32A pipe would require about three times more pipes than the existing pipes.

In other words, if the existing piping arrangement method is followed, even if the diameter of the piping is reduced, the number of piping required is too large compared to the effect, so there is a problem that the installation cost increases significantly.

Accordingly, the need for a more efficient arrangement of sprinkler pipes has emerged so that the diameter of sprinkler pipes can be reduced but the number of pipes used does not increase significantly compared to the existing method.

Republic of Korea registered patent 10-1640432 “Method of installing household piping for closed sprinkler fire extinguishing equipment in apartment complex”

The present invention was created to solve the above problems, and the purpose of the present invention is to form a loop shape by connecting the household pipes arranged one per household, the central connection pipe connected to each household pipe in the common space, and the household pipes. By including section connecting pipes, the pipe diameter is minimized to facilitate sprinkler pipe construction, and at the same time, the number of pipes required is minimized, making it more economical to maintain equal pipe pressure for each household (compartment) and flow rate when opening the sprinkler nozzle within the legal range. To provide a partition-connected sprinkler piping that can be maintained within a range and a method of installing the same.

In addition, by minimizing the number of pipes required, including compartment connecting pipes forming a loop, compartmentalized sprinkler piping and the like enable multiple floors to maintain flow rates within the legal range with a small number of pressure reducing valves (applied to vertical piping). It provides an installation method.

In order to solve the problems described above, the partition-connected sprinkler pipe according to an embodiment of the present invention is arranged one per household, and is formed in a loop shape to separate two or more household pipes that supply fluid into the household, and the household. It includes a compartment connection pipe that penetrates the wall and connects different household pipes, and a central connection pipe that is disposed in a common space outside the household and is connected to at least one household pipe and supplies fluid to the household pipe. It has a smaller diameter than the central connection pipe, is arranged so as not to intersect within the household, and is characterized in that the household pipe, the compartment connection pipe, and the central connection pipe are connected to each other to form a loop.

In addition, the diameter of the household pipe is characterized by being 20 mm or more and less than 33 mm.

In addition, one end of the household pipe is drawn out to the common space and communicates with the central connection pipe, the other end of the household pipe communicates with the compartment connection pipe, and the compartment connection pipe and the central connection pipe communicate with different household pipes at both ends. It is characterized by

In addition, it includes a pipe drawn out orthogonally from the household pipe or the central connection pipe, transfers fluid from the central connection pipe to the household pipe, and further includes a split pipe for dividing the loop.

In addition, the split pipe includes a first split pipe vertically connected from the household pipe, a second split pipe vertically connected from the central connection pipe, and a connecting member connecting the first split pipe and the second split pipe, The first split pipe and the second split pipe are characterized in that they have the same diameter as the household pipe.

In addition, it further includes a sub-piping that is vertically drawn out from the household pipe and is coupled with a sprinkler nozzle to spray fluid into the household, and the sub-piping includes a branch pipe in which at least one sprinkler nozzle is installed, and the branch pipe is a household pipe. It is characterized by a smaller diameter than the pipe.

In addition, the sub-pipe is equipped with one sprinkler nozzle and includes an expandable pipe made of flexible material, and the expandable pipe has a smaller diameter than the branch pipe.

In addition, (a) steps of installing household pipes inside the household, (b) steps of installing central connection pipes in the common space, (c) steps of installing compartment connection pipes penetrating the wall dividing the households, ( d) connecting the household pipe, the central connection pipe, and the compartment connection pipe to form a loop, and (e) connecting the central connection pipe and the vertical pipe.

In addition, step (a) is: (a1) determining the arrangement of the household pipes so that one end of the household pipes is located in the common space and the other end faces the wall separating the households, (a2) the household pipes are drawn out perpendicularly to the household pipes. It is characterized by including the step of determining the position of the sub-piping and the sprinkler nozzle coupled thereto, and (a3) installing the household pipe, sub-piping, and sprinkler nozzle within the household.

In addition, following step (d), the step (f) of installing a split pipe dividing the loop formed by the household pipe, the central connection pipe, and the compartment connection pipe is further included.

In addition, step (f) includes (f1) forming a first split pipe drawn out from the household pipe, (f2) forming a second split pipe drawn out from the central connection pipe, and (f3) connecting members. It is characterized in that it includes the step of connecting the first split pipe and the second split pipe through.

The partition-separated sprinkler piping and installation method of the present invention according to the above-mentioned configuration are compartments that form a loop shape by connecting a household pipe arranged one by one for each household, a central connection pipe connected to each household pipe in a common space, and each household pipe. By including connecting pipes, the pipe diameter is minimized to facilitate sprinkler pipe construction, and the number of pipes required is minimized to more economically maintain equal pipe pressure for each household (compartment) and flow rate when opening the sprinkler nozzle within the legal range. There is a possible effect.

In addition, by minimizing the number of pipes required, including section connecting pipes forming a loop, there is an effect of enabling multiple floors to maintain flow rates within the legal range with a small number of pressure reducing valves (applied to vertical pipes).

Figure 1 is a schematic diagram showing the structure of a compartment-connected sprinkler piping of the present invention.
Figure 2 is a plan view showing the structure of the partition-connected sprinkler piping of the present invention.
Figure 3 is a partial plan view showing the split piping of the present invention.
Figure 4 is a partial plan view showing the compartment connecting pipe and sub-piping of the present invention.
Figure 5 is a flowchart showing the installation method of the partition-connected sprinkler piping of the present invention.
Figure 6 is a flowchart showing the detailed steps of the household pipe installation step among the installation methods of compartment-connected sprinkler pipes.

Hereinafter, the technical idea of the present invention will be described in more detail using the attached drawings. Prior to this, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor should appropriately define the concept of terms in order to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability.

Hereinafter, the basic configuration and effects of the compartment-connected sprinkler piping 1000 of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the compartment-connected sprinkler pipe 1000 of the present invention may include a household pipe 100, a central connection pipe 200, and a compartment connection pipe 300. In more detail, the household pipes 100 are arranged one per household, are formed in a loop shape to supply fluid into the household, and may include two or more. Additionally, the compartment connecting pipe 300 can penetrate the wall separating households and connect different household pipes 100. In addition, the central connection pipe 200 is disposed in a common space (C) outside the household, and is connected to at least one household pipe 100 to supply fluid to the household pipe 100.

In more detail, the central connection pipe 200 can receive fluid by being connected to a vertical pipe (V) that transmits fluid in the vertical direction from a water source. A pressure reducing valve (R) may be installed between the central connection pipe 200 and the vertical pipe (V). In addition, when the building in which the compartment-connected sprinkler pipe 1000 of the present invention is installed is a multi-family house, the household pipe 100 can be placed one for each house, and the central connecting pipe 200 can be located in the elevator space or hallway space. Can be installed.

At this time, the household pipe 100 of the compartment-connected sprinkler pipe 1000 of the present invention has a smaller diameter than the central connecting pipe 200, and may be arranged so as not to intersect within the household. At this time, the household pipe 100 and the compartment connecting pipe 300 may be 32A pipes, and to further limit the scope, may have a diameter of 20 mm or more and less than 33 mm. Meanwhile, it is desirable to use a pipe with a diameter of 40A or more as the central connecting pipe 200. Up to 50A piping can be used. In this way, by differentiating the diameters of the household pipe 100 and the central connection pipe 200, construction of the section-connected sprinkler pipe 1000 of the present invention can be facilitated even in a narrow section.

As shown in Figure 2, in the case of an example in which three households (H1, H2, H3) are placed on one floor, the household pipe 100, the compartment connecting pipe, and the central connecting pipe 200 are connected to each other to connect all households. It is desirable to form one loop encompassing each other. In more detail, one end of the household pipe 100 is drawn out to the common space (C) and communicates with the central connection pipe 200, and the other end of the household pipe 100 communicates with the compartment connection pipe 300. And the central connection pipe 200 may be connected to different adjacent household pipes 100 at both ends. At this time, it is advisable to consider the installation location of the compartment connecting pipes in advance when constructing the wall. By forming the piping in a loop shape encompassing one layer in this way, it is possible to maintain a uniform flow rate and internal pressure at any point without the fluid being concentrated in a specific generation.

At this time, the partition-connected sprinkler pipe 1000 of the present invention may further include a split pipe 400. The split pipe 400 includes a pipe extending vertically from the household pipe 100 or the central connection pipe 200, and transmits fluid from the central connection pipe 200 to the household pipe 100, and the household pipe 100 ) and the loop consisting of the compartment connecting pipe and the central connecting pipe 200 can be divided. By including the split pipe 400 in this way, the passage connecting the central connection pipe 200 to the household pipe 100 is further increased, so that even if the sprinkler nozzles (N) of several households are opened at the same time, the household (H2) caught in the middle It can be supplemented to ensure that fluid is smoothly supplied to the same generation, and fluid can be prevented from being overly concentrated in the generation (H1, H3) placed at the edge.

Below, the results of analyzing the structure of the compartment-connected sprinkler piping 1000 of the present invention and the effects of the compartment-connected sprinkler piping 1000 derived therefrom will be described in more detail.

( ) Acceptance standard value Analysis by pressure reducing valve (R) installation floor Number of applicable floors Pressure reducing valve (R) discharge pressure Nozzle
maximum pressure
(1.2MPaG) Maximum flow rate in horizontal pipe
(10 m/sec) Branch piping
maximum flow rate
(6m/sec) 1 floor 0.372 0.297 8.5 4.5 2 floors 0.406 0.326 9.0 4.7 3 floors 0.441 0.355 9.3 4.9 4 floors 0.475 0.385 9.7 5.1 5 floors 0.510 0.414 10.0 5.2 6 floors 0.544 0.443 10.3 5.4 7 floors 0.578 0.472 10.7 5.6 8 floors 0.613 0.501 11.0 5.8 9 floors 0.647 0.531 11.4 6.0

The calculated values in Table 1 are based on an “84-type apartment building, model with 3 households on one floor”, applying 32A standard CPVC piping for the household piping (100) of the fire sprinkler, and calculating it with the PIPENET mathematical calculation program. It is a result. Referring to Table 1, when installation and construction are performed based on the partition-connected sprinkler piping (1000) of the present invention, even if four floors are used simultaneously with one pressure reducing valve (R), the maximum pressure of the fire sprinkler nozzle (N) This is 0.475 MPa, the maximum flow velocity of the branch pipe 510 is derived as 5.1 m/sec, and the maximum flow velocity of the horizontal pipe is derived as 9.7 m/sec. This value does not exceed the maximum value set by fire safety standards, so it was confirmed that it can be applied in actual use cases.

In the case of existing sprinkler piping, a pressure reducing valve (R) is applied on each floor between the vertical pipe (V) and the central connection pipe (200), but when the partition-connected sprinkler pipe (1000) of the present invention is applied, the above-mentioned As shown in the analysis results, the same effect can be obtained just by using one pressure reducing valve (R) on four floors, so it can be said that the partition-connected sprinkler piping 1000 of the present invention has a remarkable effect.

Tree-type piping (conventional) Annular piping (conventional) Compartment-connected piping Generation inlet pressure 0.320 MPa G 0.483 MPa G 0.372 MPa G ∑ Nozzle (N) discharge amount 936.6 lpm 840.9 lpm 845.8 lpm Branch pipe (510) maximum flow rate 5.1m/sec 4.7 m/sec 4.5m/sec Other piping maximum flow rate 6.0m/sec 6.7 m/sec 8.5m/sec Within the household
Type of piping used 65A,50A,40A,
32A,25A,20A 40A, 25A, 20A 32A, 25A, 20A Maximum pipe size in household 65A 40A 32A Vertical piping specifications 80A 65A 65A Type of piping used steel pipe Steel pipe, CPVC Steel pipe, CPVC

The calculation results in Table 2 are the results of calculations using a mathematical calculation program targeting the 84 type 3rd generation structure. The calculation is based on the condition that each nozzle (N) satisfies 80 lpm or more with the 10 nozzles (N) of the sprinkler head located furthest from the water supply device in the open state, and the maximum flow rate of the horizontal pipe and branch pipe (510). This is the result of calculating by arranging the piping so as not to exceed the maximum allowable flow rate of the piping according to fire safety standards. Referring to Table 2, when installation and construction are performed based on the compartment-connected sprinkler pipe 1000 of the present invention, not only can the diameter of the pipe used within the household be significantly reduced compared to the conventional tree-type pipe and annular pipe, It was confirmed that the unit's inlet pressure, nozzle (N) water discharge rate, and maximum flow rate of the branch pipe (510)/new pipe (520) could be maintained within the range specified by law, making it possible to apply it in actual use cases.

In the case of existing tree-type pipes and ring-shaped pipes, installation in narrow spaces is difficult due to the use of pipes with relatively large diameters, and noise may be generated because the pipes may contact the ceiling or half of the pipe. However, the present invention By applying the compartment-connected sprinkler piping (1000), as shown in the above-mentioned analysis results, the diameter of the pipe can be minimized while satisfying the scope of the law, so it can be said that the compartment-connected sprinkler piping (1000) of the present invention has a remarkable effect. .

Hereinafter, the detailed configuration of the compartment-connected sprinkler piping 1000 of the present invention will be described in more detail with reference to FIGS. 3 and 4.

As shown in FIG. 3, the division pipe 400 includes a first division pipe 410 extending vertically from the household pipe 100, and a second division pipe 420 extending orthogonally from the central connecting pipe 200. ) may include. At this time, the loop can be divided only with the first split pipe 410 or the second split pipe 420 depending on the shape of the household and the connection position of the household pipe 100 and the central pipe.

When the first split pipe 410 and the second split pipe 420 are all pulled out and connected to each other to divide the loop, a connecting member connecting the first split pipe 410 and the second split pipe 420 will be included. You can. To this end, the first split pipe 410 and the second split pipe 420 may be pipes having the same diameter, and more specifically, the first split pipe 410 and the second split pipe 420 are the household pipe 100. It may have the same diameter as .

Additionally, as shown in FIG. 4, the compartment connecting pipe 300 may be formed to penetrate the wall separating the households H1 and H2. The compartment connecting pipe 300 can be interpolated into the space between the ceiling and the half of the household like the household pipe, and accordingly, it is preferably the same diameter as the household pipe 100 or has a diameter in the range of 20 to 33 mm. The compartment connecting pipe 300 may include sound-absorbing material nearby to protect privacy between households. In more detail, a sound-absorbing material may be applied between the hole for inserting the compartment connecting pipe 300 and the compartment connecting pipe 300.

In addition, the compartment-connected sprinkler pipe 1000 of the present invention is vertically drawn out from the household pipe 100 and may further include a sub pipe to which a sprinkler nozzle (N) is coupled to spray fluid into the household. The sub pipe 500 may include a branch pipe 510 in which at least one sprinkler nozzle (N) is installed. The branch pipe 510 may have the same diameter or be smaller than the household pipe 100. For example, the branch pipe 510 may be a pipe with a diameter of 25A. The branch pipe 510 may have two or more sprinkler nozzles (N) arranged in an extension direction to expand the spray area of the fluid. Additionally, the sub-pipe 500 is equipped with one sprinkler nozzle (N) and may include an expandable pipe 520 made of a flexible material. The expansion pipe 520 may have a smaller diameter than the branch pipe 510. For example, the expandable pipe 520 may have a diameter of 20Flx. The length of the expansion pipe 520 may be shorter than that of the branch pipe 510. By including the expandable pipe 520, the fluid can be sprayed to corners where the branch pipe 510 does not reach.

Hereinafter, the installation method of the compartment-connected sprinkler piping 1000 of the present invention will be described in more detail with reference to FIGS. 5 and 6.

As shown in Figure 5, (a) installing the household pipe 100 inside the household, (b) installing the central connection pipe 200 in the common space (C), (c) installing the household pipe 200 in the common space (C). A step of installing a compartment connecting pipe penetrating the dividing wall, (d) connecting the household pipe 100, the central connecting pipe 200, and the compartment connecting pipe to form a loop, and (e) the central connecting pipe ( It is desirable to include the step of connecting 200) and the vertical pipe (V).

At this time, in step (c), the compartment connecting pipe 300 may be formed to penetrate the wall separating the households H1 and H2. The compartment connecting pipe 300 can be interpolated into the space between the ceiling and the half of the household like the household pipe, and accordingly, it is preferably the same diameter as the household pipe 100 or has a diameter in the range of 20 to 33 mm. The compartment connecting pipe 300 may include sound-absorbing material nearby to protect privacy between households. In more detail, a sound-absorbing material may be applied between the hole for inserting the compartment connecting pipe 300 and the compartment connecting pipe 300.

As shown in Figure 6, in step (a), (a1) the household pipe 100 is arranged so that one end of the household pipe 100 is located in the common space (C) and the other end faces the wall separating the households. It may include a step of determining. At this time, the compartment connecting pipe and the central connecting pipe 200 may communicate with different adjacent household pipes 100 at both ends. At this time, it is advisable to consider the installation location of the compartment connecting pipes in advance when constructing the wall. By forming the piping in a loop shape encompassing one layer in this way, it is possible to maintain an equal flow rate and internal pressure at any point without the fluid being concentrated in a specific generation.

In addition, step (a) includes (a2) determining the position of the sub-piping 500 and the sprinkler nozzle (N) coupled thereto, which are vertically drawn out from the household pipe 100, and (a3) determining the location of the household pipe 100 and the sub-piping 500. It is preferable to include the step of installing the pipe 500 and the sprinkler nozzle (N) within the household.

Furthermore, the installation method of the compartment-connected sprinkler pipe 1000 of the present invention follows step (d), and (f) divides the loop formed by the household pipe 100, the central connection pipe 200, and the compartment connection pipe. It is preferable to further include the step of installing the split pipe 400. At this time, step (f) includes (f1) forming a first split pipe 410 drawn out perpendicularly from the household pipe 100, and (f2) forming a second split pipe drawn out perpendicularly from the central connecting pipe 200. It is preferable to include forming the pipe 420, and (f3) connecting the first split pipe 410 and the second split pipe 420 through a connecting member. In performing step (f3), the first split pipe 410 and the second split pipe 420 may be pipes having the same diameter, and more specifically, the first split pipe 410 and the second split pipe 420 ) may have the same diameter as the household pipe 100.

However, depending on the type of household and the joint location of the household pipe 100 and the central pipe, either step (f1) or step (f2) may be omitted. Additionally, if either step (f1) or step (f2) is omitted, step (f3) may also be omitted.

By including the split pipe 400 in this way, the passage connecting the central connection pipe 200 to the household pipe 100 is further increased, so that even if the sprinkler nozzles (N) of several households are opened at the same time, the household (H2) caught in the middle It can be supplemented to ensure that fluid is smoothly supplied to the same generation, and fluid can be prevented from being overly concentrated in the generation (H1, H3) placed at the edge.

The technical idea of the present invention should not be interpreted as limited to the above-described embodiments. Not only is the scope of application diverse, but various modifications can be made at the level of those skilled in the art without departing from the gist of the present invention as claimed in the claims. Therefore, such improvements and changes fall within the scope of protection of the present invention as long as they are obvious to those skilled in the art.

1000: Compartment-connected sprinkler piping
100: Household piping
200: Central connection pipe
300: Compartment connecting pipe
400: Split pipe
410: 1st division pipe
420: Second division pipe
500: Sub piping
510: Branch piping
520: Newly constructed piping
H1, H2, H3: Generation
C: Public space
N: sprinkler nozzle
R: Pressure reducing valve
V: Vertical piping

Claims (11)

Two or more household pipes, one placed per household, formed in a loop shape to supply fluid into the household;
A compartment connecting pipe that penetrates the wall separating the households and connects the household pipes to each other;
It includes a central connection pipe disposed in a common space outside the household, connected to at least one household pipe and supplying fluid to the household pipe,
The household piping is,
It has a smaller diameter than the central connecting pipe and is arranged so as not to intersect within the household,
Compartment-connected sprinkler piping, wherein the household pipe, the compartment connecting pipe, and the central connecting pipe communicate with each other to form one loop.
According to clause 1,
The diameter of the household pipe is,
Compartment-connected sprinkler piping, characterized in that it is 20 mm or more and less than 33 mm.
According to clause 1,
One end of the household pipe is drawn out into the common space and communicates with the central connection pipe,
The other end of the household pipe communicates with the compartment connection pipe,
The compartment connecting pipe and the central connecting pipe,
A partition-connected sprinkler pipe in which the above-described household pipes communicate with each other at both ends.
According to clause 1,
Including pipes extending perpendicularly from the household pipe or the central connection pipe,
Partially connected sprinkler piping, characterized in that it further comprises a split pipe that transfers fluid from the central connection pipe to the household pipe and divides the loop.
According to clause 4,
The split pipe is,
A first split pipe connected vertically from the household pipe,
A second split pipe connected vertically from the central connection pipe, and
It includes a connecting member connecting the first split pipe and the second split pipe,
The first split pipe and the second split pipe have the same diameter as the household pipe.
According to clause 2,
It further includes a sub-pipe that is vertically drawn out from the household pipe and is coupled with a sprinkler nozzle to spray fluid into the household,
The sub-piping is,
It includes a branch pipe in which at least one sprinkler nozzle is installed,
A partition-connected sprinkler pipe, characterized in that the branch pipe has a smaller diameter than the household pipe.
According to clause 6,
The sub-piping is,
One sprinkler nozzle is installed and includes an expandable pipe containing flexible material,
A partition-connected sprinkler pipe, characterized in that the expansion pipe has a smaller diameter than the branch pipe.
In the method of installing the partitioned sprinkler piping of claim 1,
(a) Installing household piping inside the household;
(b) installing the central connection pipe in a common space;
(c) installing a partition connecting pipe penetrating the wall dividing the household;
(d) forming a loop by connecting the household pipe, the central connection pipe, and the compartment connection pipe; and
(e) connecting the central connection pipe and the vertical pipe; including,
A method of installing partition-connected sprinkler piping, characterized in that.
According to clause 8,
In step (a),
(a1) determining the arrangement of the household pipes so that one end of the household pipes is located in a common space and the other end faces a wall separating the households,
(a2) determining the position of the sub-piping perpendicular to the household pipe and the sprinkler nozzle coupled thereto, and
(a3) A method of installing partition-connected sprinkler piping, comprising the step of installing the household piping, the sub-piping, and the sprinkler nozzle within the household.
According to clause 9,
Following step (d) above,
(f) installing a division pipe dividing the loop formed by the household pipe, the central connection pipe, and the section connection pipe; A method of installing a compartment-connected sprinkler pipe, characterized in that it further comprises a.
According to clause 10,
In step (f),
(f1) forming a first split pipe drawn from the household pipe;
(f2) forming a second split pipe extending from the central connecting pipe; and
(f3) A method of installing a partition-connected sprinkler pipe, comprising the step of connecting the first split pipe and the second split pipe through a connecting member.

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